EP2265528B1 - Method and device for conveying planar products - Google Patents

Method and device for conveying planar products Download PDF

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Publication number
EP2265528B1
EP2265528B1 EP09704092A EP09704092A EP2265528B1 EP 2265528 B1 EP2265528 B1 EP 2265528B1 EP 09704092 A EP09704092 A EP 09704092A EP 09704092 A EP09704092 A EP 09704092A EP 2265528 B1 EP2265528 B1 EP 2265528B1
Authority
EP
European Patent Office
Prior art keywords
products
compartments
product
circulating system
grippers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09704092A
Other languages
German (de)
French (fr)
Other versions
EP2265528A2 (en
Inventor
H. Ulrich Stauber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferag AG
Original Assignee
Ferag AG
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Filing date
Publication date
Application filed by Ferag AG filed Critical Ferag AG
Publication of EP2265528A2 publication Critical patent/EP2265528A2/en
Application granted granted Critical
Publication of EP2265528B1 publication Critical patent/EP2265528B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/38Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
    • B65H29/40Members rotated about an axis perpendicular to direction of article movement, e.g. star-wheels formed by S-shaped members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/003Delivering or advancing articles from machines; Advancing articles to or into piles by grippers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/042Intermediate conveyors, e.g. transferring devices
    • B65H29/044Intermediate conveyors, e.g. transferring devices conveying through a machine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/26Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles
    • B65H29/28Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles from mechanical grippers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/447Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4471Grippers, e.g. moved in paths enclosing an area
    • B65H2301/44712Grippers, e.g. moved in paths enclosing an area carried by chains or bands
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/447Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4473Belts, endless moving elements on which the material is in surface contact
    • B65H2301/44732Belts, endless moving elements on which the material is in surface contact transporting articles in overlapping stream
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/447Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/44765Rotary transport devices with compartments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50Occurence
    • B65H2511/51Presence
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50Occurence
    • B65H2511/515Absence
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50Occurence
    • B65H2511/52Defective operating conditions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00Dynamic entities; Timing aspects
    • B65H2513/10Speed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00Dynamic entities; Timing aspects
    • B65H2513/40Movement

Definitions

  • the invention is in the field of conveyor technology and is concerned in particular with the conveying of printed products. It relates to a method for conveying sheet-like products according to claim 1 and to an apparatus for carrying out the method according to claim 11.
  • Transfer devices for flat products in the form of paddle wheels are well known. They serve, for example, in printing technology to take over from a rotary printing press or their folding unit coming folded printed products and designed flaky arranged below the paddle wheel delivery belts. The imbricated formation thus produced can then be sent for further processing.
  • the products are supplied to the paddle wheel usually from the top or side with the folded edge leading forward and about half a turn of the wheel at the lowest point of the web gravity assisted again.
  • a stationary stripping device is usually present, which acts on the leading edge (folded edge) and pushes the product on further rotation of the wheel from the compartment.
  • EP-A 1 510 488 or WO 98/16455 known to capture the printed products in the lower part of the trajectory just before emerging from the compartments of the impeller at its resting on the bottom of the compartments (compartment floor) edge, ie at the leading edge in the incoming formation, by means of controlled gripper.
  • the grippers also take over the function of the above-mentioned scraper.
  • the printed products held by the grippers are removed from the bucket wheel compartments due to the relative movement of the gripper and bucket wheel compartment. Since the grippers accompanied the compartments or compartment floors a piece with the movement and further promotion of products takes place at the place of acquisition in the direction of rotation of the paddle wheel.
  • the products are then deposited in a scaly form from above on a removal conveyor or transferred to another gripper conveyor. It creates an imbricated formation in which the leading edges - as in the original formation - are arranged in front of the trailing edges. Since the grippers act on the products only in the lower part of the trajectory of the impeller, there is a risk that the products slide out of the compartments uncontrolled before grabbing due to gravity. This can also lead to irregularities in the generated formation.
  • the gripper can act on the leading edge, which is located in the area of the compartment floor, the trajectory of the gripper is in supervision of the axis of rotation of the paddle wheel clearly within the paddle wheel.
  • the products are led out of the compartments at the bottom and further conveyed by the gripper conveyor below the impeller and / or supported by gravity on a conveyor belt arranged below the impeller stored. This requires a certain minimum height of the overall device (paddle wheel and arranged below conveyor belt).
  • the orbit of the grippers and their drive means is at least partially within the surface of the paddle wheel.
  • the gripper conveyor must engage in the paddle wheel, which is mechanically complex.
  • leading edge is gripped.
  • the leading edge is usually the folded edge of the product.
  • the product often has to be fed with the leading edge into a further processing station, e.g. in a plug-in or cutting drum for inserting other products or cutting the edge opposite the fold edge.
  • embracing is therefore necessary, which makes the transfer to another gripper conveyor or a dropping and re-grasping necessary. This is complicated and expensive due to the additional component required for encompassing.
  • a conveyor belt with an auxiliary conveyor is arranged below the paddle wheel, which moves in the same direction as the direction of rotation at the place of acquisition.
  • the auxiliary conveyor has a plurality of clamping elements.
  • the products are pushed out of the compartments of the paddle wheel due to gravity and supported by scrapers, which act on the leading edges, and come to lie in a scaly formation on the conveyor belt.
  • the clamping elements serve as a stop for the trailing edges of the already stored products and clamp them firmly against the conveyor belt. They thus ensure a constant distance of Trailing edges on the conveyor belt. After the products have been made uniform in this way, the clamping elements are removed and the products in the uniform scale formation further promoted.
  • the EP-A1-0 854 105 discloses a method according to the preamble of claim 1, and describes a method of conveying flat products, in which the products are introduced with their leading edge forward at a transfer point in a closed orbit moving compartments of a receiving drum and at a transfer point by means of a conveyor from the Are removed compartments and conveyed away, the products are removed at the trailing edge of the conveyor from the compartments.
  • the invention is therefore based on the object to reduce the disadvantages described above.
  • a method and a device is to be made available which enables a well-controlled, reliable transfer of products, in particular folded printed products, between a paddle wheel and a further conveying device.
  • the inventive method and the inventive device for conveying flat products, especially printed products assume that the products are introduced at a transfer point in a conventional manner with its leading edge ahead in compartments of a circulation system, which are moved along a closed orbit. It is a paddle wheel as in the above-mentioned prior art.
  • the products are preferably fed in a feed direction which corresponds to the orientation of the compartments as they pass the transfer point.
  • the leading edge is usually - but not necessarily - a folded edge of a printed product.
  • the product is folded several times, it is in particular the last folded edge.
  • the products are conveyed through the compartments to a takeover point, for example by rotation of the paddle wheel.
  • Individually supplied products are usually braked in comparison to the conveying speed in the feed, in that they are already transferred to a more compact formation by being introduced into the circulation system. If they have already been fed into a compact formation, eg a scaly formation or in small stacks, they are usually singulated when introduced into the compartments.
  • the trailing edge is grasped here.
  • the orientation of the products is preferably such that the trailing edge is above the leading edge, the product is thus supported on the compartment floor due to gravity and thus occupies a well-defined position before and during the acquisition. Due to the relative movement of compartment and gripper, the product is released by the circulation system and can be further promoted by the gripper conveyor.
  • the gripping of the trailing edge which is preferably a non-folded open product edge, has the advantage that it can be realized in a space-saving and structurally simple manner without a complicated meshing of circulation system and gripper conveyor.
  • the grippers can act in particular in the immediate vicinity of the compartment openings on the trailing edge of the product disposed in the respective compartment product, so that the products are optimally supported by the compartment wall until gripping.
  • the compartment floors or a preferably existing scraper which acts on the abutment bottom abutting the leading edge, be adjustable, so that the acquisition can always take place in the same place.
  • Grasping the trailing edge has the additional advantage that especially folded printed products are brought into a position that is optimal for further processing. They can be introduced, for example, with the leading edge in a plug-in or cutting drum, so that the folded edge opposite the open edge ("flower") can be edited. Another advantage is that by grabbing the product at the open edge, no product components can fall out.
  • the invention has the further advantage that timing inaccuracies in the supplied formation, which have not already been compensated by the circulation system or which arise within the circulation system, can be compensated. This is because the grippers are preferably conveyed at a constant distance and the Always take products in the same place while they are still essentially fully supported by the compartments and thus positioned in a highly controllable manner.
  • each conveyor is understood to mean a plurality of compartments moved along a circular path into which the products are inserted, without necessarily actively fixing them.
  • active fixation e.g., clamping
  • It is, for example, a rotary body which has one or more compartments or pockets which can receive products and convey them by rotating the rotary body about an axis of rotation along a circular path.
  • the above-mentioned paddle wheels (star wheels) are usually rotatable about a horizontal axis.
  • the compartment floor is at a certain distance r from the axis of rotation, which is greater than zero, in order to push the products depending on the rotational position by attacking the leading edges of the compartments can.
  • the compartments open opposite to the direction of rotation at an angle relative to the radial direction, so that the leading edge of the products seen in the direction of rotation of the impeller is located in front of the trailing edge.
  • the compartments are, for example, in the form of a scale over one another in a scale, in order to achieve the largest possible conveying capacity. These considerations can also be applied to differently designed circulation systems.
  • the compartments are for example attached to conveyors, e.g. a chain or rope, and are moved at a constant or variable mutual distance by a drive along the orbit. It is preferred, but not essential, that the orbit of the circulation system be in a vertical plane.
  • the leading edge of a product during conveyance through the circulation system is at least until the product is gripped below its trailing edge.
  • This has the advantage that the position of the leading edge due to gravity at any time is defined by the position of the compartment floor or any existing scraper. Slipping out of the product from the compartment or shifting the product within the compartment due to gravity is prevented.
  • the trailing edges are gripped in this defined position directly from the grippers, which are in particular above or to the side of the circulation system and approach it from above.
  • the conveying direction and speed of the gripper conveyor is adapted to the conveying direction and speed of the circulating system. After grasping the product, the leading edge can also be located above the trailing edge, since the product layer is already well defined by the gripper.
  • the products are preferably substantially horizontal (trailing edge directed to the feed) upright (trailing edge above) introduced into the compartments.
  • the products When picking up at the takeover point, the products are in an upright position (trailing edge at the top) to an approximately horizontal position (trailing edge directed towards the gripper). Due to the orientation of the leading and trailing edges described above, no additional elements are necessary to fix the products in the compartments.
  • the product feed device and the gripper conveyor for conveying away the products are arranged so that the products are transferred at a time after or before the compartments tilt so that the leading edge (FIG. or a point on the compartment floor) below the trailing edge (or a point in the opening area of the compartment) would be.
  • the transfer point is for this purpose preferably in an upper region of the circulation system.
  • the takeover point is usually located in the vertical direction below the transfer point.
  • the takeover office is located in Top view of the axis of rotation preferably laterally next to the circulation system. This also has the advantage of a low overall height and simpler construction of the device, since the trajectories of the compartments (or their opening areas) and the gripper need not or only slightly overlap.
  • the transfer site i. the place of transfer of the products to the compartments of the circulation system, and the transfer point arranged and the compartments shaped so that the horizontal position of the leading edge and the trailing edge between the transfer point and transfer point by the movement of the compartments along the orbit of the circulation system is reversed.
  • the leading edge lies in the horizontal direction at the transfer before the trailing edge and when taken over in the area or after the trailing edge.
  • the product performs a kind of hairpin when conveying. In this way it is easy to produce without great accelerations and thus product gentle formations in which the (original) trailing edge seen in the conveying direction of the gripper conveyor and / or where the products are arranged hanging and thus spatially compact.
  • the products can be conveyed to the circulating system individually, in a scale formation and / or in small stacks to the circulation system for transfer to the circulation system.
  • the products come, for example, directly from a rotary printing press, from a buffer (eg product wrapping) or another upstream process.
  • the acceptance of the products by the grippers is preferably supported by the fact that the products, e.g. by attacking the leading edges by means of a scraper, are moved against gravity relative to the compartment so that they protrude a little way out of the compartment and can be easily taken.
  • the amount by which the products protrude from the compartment is preferably small compared to the total length of the product, more preferably less than one quarter to less than one tenth of the total length of the product.
  • the stripping device is preferably displaceable for adaptation to different product formats in order to ensure that the trailing edge is always in the same position despite different product lengths in the region of the transfer point.
  • a monitoring device is used to monitor the circulation system supplied formation of products, in particular for the detection of irregularities or faulty products. It may, for example, be an optical sensor.
  • the monitoring device communicates with a control device by emitting a corresponding signal, for example when a product arrives or in the event of an irregularity or a defective product.
  • the control device controls the movement of the circulation system and / or the gripper conveyor and / or the gripper, in particular with the aim of compensating errors and irregularities in the outgoing formation produced by the gripper conveyor.
  • the monitoring device upon the arrival of each product, gives a clock signal to the control device, which serves to control the orbital motion of the circulation system and the gripper conveyor.
  • the circulation system and gripper conveyor are driven synchronously as usual, but the circulation speed is adjusted in a controlled manner on the basis of a signal of the monitoring device, for example to compensate for gaps (eg short-term standstill).
  • the grippers are individually controlled, for example, defective products not but deliberately reject. A corresponding method is already described in the unpublished Swiss patent application no. 1806/07 described herein incorporated by reference.
  • the control device is control technology connected to the drive of the circulation system or the gripper conveyor or any controllable scenes and can transmit signals to these components.
  • Fig. 1 schematically shows an inventive device 10 with a paddle wheel 20 as a circulation system, a gripper conveyor 30 and a feed conveyor 40 in view of the axis of rotation D of the impeller 20th
  • the paddle wheel 20 has a plurality of compartments 22 which are defined by supporting / separating elements 23 which are slightly convexly bent relative to the axis of rotation D.
  • the separating elements 23 wind in the manner of a very elongated spiral about the axis of rotation D.
  • the walls 26, 27 of a compartment 22 are defined by the mutually facing surfaces of two adjacent separating elements 23.
  • the dividing elements 23 converge towards one another and thus define the compartment bottom 24 by way of a connecting piece.
  • the compartment bottoms 24 lie at a constant distance r from the axis of rotation D.
  • the compartments 22 open counter to the direction of rotation of the impeller 20 in the clockwise direction
  • the lower half of the paddle wheel 20 is a non-rotating, horizontally displaceable wiper 28 with a bent in the upper region, in the further course approximately vertically oriented guide surface 29.
  • the stripping device 28 by means of a suitable drive 28 'in the horizontal direction.
  • the feed conveyor 40 is here a belt conveyor, on the conveyor belt, the products 12 rest individually. A Zu detailn of small stacks or a scaly formation is also possible.
  • the front region 42 of the feed conveyor 40 protrudes into the paddle wheel 20.
  • the feed conveyor 40 and / or the separating elements 23 are designed to engage in one another.
  • the location where the products 12 are introduced into the compartments 22 is referred to as the transfer area A.
  • the transfer area A is located in the direction of rotation shortly before the upper vertex S of the path of movement U of the compartments 22 approximately at the position "11 o'clock". In the present case, U is the movement path of a radially outward point on the separating elements 23.
  • the feed direction F is predetermined by the orientation of the belt conveyor.
  • the orientation of the compartments 22 (eg orientation of the trailing compartment wall 26) corresponds approximately to the feed direction F in the transfer area A.
  • the gripper conveyor 30 has a plurality of individually controllable grippers 32, which are moved along a closed orbit U '.
  • U ' is the present example, the trajectory of drive means not shown here, referred to, with which the gripper 32 are connected.
  • the grippers 32 are pivotable in a conventional manner by means of suitable control slides relative to the orbit U '.
  • the position of the two gripper jaws 34, 35, e.g. open or closed gripper jaw can be adjusted with suitable control slots.
  • the gripper 32 has to controls 36, 37 in the form of control rollers, which cooperate with the aforementioned scenes for the purpose of closing, opening and / or pivoting of the gripper 32.
  • the area in which the grippers 32 are closed is also referred to as takeover point B.
  • the transfer point B is located laterally of the paddle wheel 20 approximately at the position "3 o'clock". It is located in the vertical direction below the transfer point A.
  • the devices 12 are introduced into the compartments 22 with a product length L measured between leading edge 14 and trailing edge 16 with their leading edge 14, so that the leading edge 14 in the area of the compartment floor 24 and the trailing edge 16 is located in the region of the compartment opening 25.
  • the compartments 22 are oriented in the region of the transfer point A so that the compartment floor 24 is below the front end 42 of the feed conveyor 40. Due to the distance r to the axis of rotation, the compartment bottom 24 moves during and after receiving a product 12 in the compartment 22 initially with a movement component in the original conveying direction F.
  • the product 12 is therefore immediately after insertion into the compartment 22 substantially in its original conveying direction F further moved and only with further rotation of the paddle wheel gently subjected to a change of direction. Strong accelerations are therefore avoided.
  • the products 12 are initially on the trailing in the direction of rotation compartment wall 26 and in the further course of the leading in the direction of rotation compartment wall 27 at. In this position they reach the transfer point B. Their position is chosen so that the leading edges 14 are at least until the products 12 are gripped by the grippers 32 below the trailing edges 16.
  • the compartments 22 between transfer point A and transfer point B are oriented so that the compartment floors 24 are located below the compartment openings 25.
  • the grippers 32 are moved open to the transfer point B and closed there.
  • the compartment walls 26, 27 must therefore have no recesses for engaging the gripper 32.
  • the stripping device 28 serves to push the products 12 a little further out of the compartments by engaging the leading edges 14, which are initially located on the compartment floor 24, so that the trailing edges 16 reach into the region of the grippers 32 and the distal ends of the gripper jaws 34, 35 brought and can be taken there safely. At any time during the movement, the products 12 are therefore in a well-defined position.
  • the products 12 can also, as shown schematically here, be supported on the drooping (original) leading edge 14 by a support surface 50.
  • the support surface 50 may also be the conveyor belt of a further belt conveyor on which the products can subsequently also be completely deposited. In this way, a repositioning of the products (leading edge becomes the trailing edge and vice versa) can be realized in a gentle manner. This is in Fig. 3 shown by way of example.
  • the control device 70 is used to synchronize the movement of feed conveyor 40, circulation system 20 and gripper conveyor 30. Optionally, it receives from a monitoring device 72, a signal which serves to adapt the movements of these components in the manner described in the general description part. In this way, irregularities can be compensated or defective products can be eliminated.
  • Fig. 2 shows the device Fig. 1 in the processing of products 12 with a product length L ', which is smaller than the product length L of the products Fig. 1 is. These products 12 also come to rest with the leading edge 14 on the compartment floor 24. Due to the shorter product length L 'the trailing edge 16 is deeper in the compartment 22.
  • the stripping device 28 is displaced in the horizontal direction to compensate for the differences in length of the products 12 so that the acquisition by the gripper 32 can always be done in the same position.
  • Fig. 3 shows the transfer of the products 12 to a belt conveyor 52, whose conveyor belt represents the above-mentioned support surface 50. This moves in the same direction as the gripper 32 of the above arranged gripper conveyor 30.
  • the products 12 are conveyed to the transfer point B in a hanging position, with the (original) leading edge 14 on the support surface 50th rests and in the conveying direction of the gripper conveyor 30 behind the gripped (original) trailing edge 16 is arranged.
  • the gripper 32 are opened at a delivery point C.
  • an imbricated formation is produced on the conveyor belt, in which the open (original) trailing edges 16 precede and rest on the preceding product 12.
  • Fig. 4 shows the transfer of the products 12 from the gripper conveyor 30 to a plug-in or cutting drum 60.
  • the grippers 32 are opened at a delivery point C by a trigger element 38 so that the products 12 fall down into compartments of the plug-in or cutting drum 60.
  • the folded open (original) leading edge 14 is located on the compartment floor and the (original) trailing edge 16 in the region of the opening of the compartment and thus in the correct position for the cutting process.
  • the right product position can be achieved with little effort to make the desired processing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

A method and to a device for conveying planar products (12), particularly folded printed products. At a transfer point (A), the products (12) are inserted with the leading edges (14) thereof ahead into compartments (22) of a revolving system (20) in the form of a paddle wheel, the compartments moving along a closed revolving path (U), and removed from the compartments (22) at a transfer point (B) by way of grippers (32) of a gripper conveyor (30) and conveyed away. The products are seized by the grippers (32) at the trailing edges (16). The seizing of the trailing edge (16), which preferably is not the folded open product edge, has the advantage that it can be implemented without a complicated engagement of the revolving system (20) and gripper conveyor (30) and that the further conveyance and further processing of the products (12) are simplified.

Description

Die Erfindung liegt auf dem Gebiet der Fördertechnik und befasst sich insbesondere mit dem Fördern von Druckereiprodukten. Sie betrifft ein Verfahren zum Fördern von flächigen Produkten nach Anspruch 1 sowie eine Vorrichtung zur Durchführung des Verfahrens nach Anspruch 11.The invention is in the field of conveyor technology and is concerned in particular with the conveying of printed products. It relates to a method for conveying sheet-like products according to claim 1 and to an apparatus for carrying out the method according to claim 11.

Transfervorrichtungen für flächige Produkte in Form von Schaufelrädern sind allgemein bekannt. Sie dienen beispielsweise in der Druckereitechnik dazu, von einer Rotationsdruckmaschine bzw. deren Falzaggregat kommende gefalzte Druckereiprodukte zu übernehmen und schuppenförmig auf unterhalb des Schaufelrades angeordnete Auslegebänder auszulegen. Die so erzeugte Schuppenformation kann dann einer Weiterverarbeitung zugeführt werden.Transfer devices for flat products in the form of paddle wheels are well known. They serve, for example, in printing technology to take over from a rotary printing press or their folding unit coming folded printed products and designed flaky arranged below the paddle wheel delivery belts. The imbricated formation thus produced can then be sent for further processing.

Die Produkte werden dem Schaufelrad in der Regel von oben bzw. seitlich mit der Falzkante voran zugeführt und etwa nach einer halben Umdrehung des Rades am tiefsten Punkt der Bahn schwerkraftunterstützt wieder abgegeben. Um diesen Prozess zu unterstützen, ist in der Regel eine ortsfeste Abstreifeinrichtung vorhanden, die auf die Vorlaufkante (Falzkante) einwirkt und das Produkt beim Weiterdrehen des Rads aus dem Abteil schiebt.The products are supplied to the paddle wheel usually from the top or side with the folded edge leading forward and about half a turn of the wheel at the lowest point of the web gravity assisted again. In order to support this process, a stationary stripping device is usually present, which acts on the leading edge (folded edge) and pushes the product on further rotation of the wheel from the compartment.

Zur Erzeugung eines konstanten Schuppenabstands auf dem Auslegeband ist eine gut kontrollierte Bewegung der Produkte beim Austritt aus dem Schaufelrad gewünscht.To produce a constant scale spacing on the delivery belt, a well controlled movement of the products upon exit from the impeller is desired.

Zur Erzeugung eines regelmässigen Schuppenabstands ist beispielsweise aus der EP-A 0 739 840 , EP-A 1 510 488 oder WO 98/16455 bekannt, die Druckereiprodukte im unteren Teil der Bewegungsbahn kurz vor dem Austreten aus den Abteilen des Schaufelrades an ihrer auf dem Grund der Abteile (Abteilboden) aufliegenden Kante, d.h. an der Vorlaufkante in der einlaufenden Formation, mittels gesteuerter Greifer zu erfassen. Die Greifer übernehmen hierbei auch die Funktion des oben erwähnten Abstreifers. Die durch die Greifer festgehaltenen Druckereiprodukte werden aufgrund der Relativbewegung von Greifer und Schaufelradabteil aus den Schaufelradabteilen entfernt. Da die Greifer die Abteile bzw. Abteilböden ein stückweit mitbegleiten, erfolgt die Bewegung und Weiterförderung der Produkte am Ort der Übernahme in Umlaufrichtung des Schaufelrades. Die Produkte werden dann schuppenförmig von oben auf einem Wegförderer abgelegt oder an einen weiteren Greiferförderer übergeben. Es wird eine Schuppenformation erzeugt, in der die Vorlaufkanten - wie in der ursprünglichen Formation - vor den Nachlaufkanten angeordnet sind. Da die Greifer erst im unteren Teil der Bewegungsbahn des Schaufelrads auf die Produkte einwirken, besteht die Gefahr, dass die Produkte bereits vor dem Ergreifen aufgrund der Schwerkraft unkontrolliert aus den Abteilen herausgleiten. Dies kann auch zu Unregelmässigkeiten in der erzeugten Formation führen.To generate a regular scale spacing is for example from the EP-A 0 739 840 . EP-A 1 510 488 or WO 98/16455 Known to capture the printed products in the lower part of the trajectory just before emerging from the compartments of the impeller at its resting on the bottom of the compartments (compartment floor) edge, ie at the leading edge in the incoming formation, by means of controlled gripper. The grippers also take over the function of the above-mentioned scraper. The printed products held by the grippers are removed from the bucket wheel compartments due to the relative movement of the gripper and bucket wheel compartment. Since the grippers accompanied the compartments or compartment floors a piece with the movement and further promotion of products takes place at the place of acquisition in the direction of rotation of the paddle wheel. The products are then deposited in a scaly form from above on a removal conveyor or transferred to another gripper conveyor. It creates an imbricated formation in which the leading edges - as in the original formation - are arranged in front of the trailing edges. Since the grippers act on the products only in the lower part of the trajectory of the impeller, there is a risk that the products slide out of the compartments uncontrolled before grabbing due to gravity. This can also lead to irregularities in the generated formation.

Damit bei solchen Vorrichtungen die Greifer auf die Vorlaufkante einwirken können, die sich im Bereich des Abteilbodens befindet, befindet sich die Bewegungsbahn der Greifer in Aufsicht auf die Drehachse des Schaufelrades deutlich innerhalb des Schaufelrades. Die Produkte werden nach unten aus den Abteilen herausgeführt und durch den Greiferförderer unterhalb des Schaufelrads weitergefördert und/oder schwerkraftunterstützt auf ein unterhalb des Schaufelrades angeordnetes Förderband abgelegt. Dies erfordert eine gewisse minimale Bauhöhe der Gesamtvorrichtung (Schaufelrad und darunter angeordnetes Förderband). In der Ansicht auf die Drehachse des Schaufelrads befindet sich die Umlaufbahn der Greifer und ihrer Antriebsmittel wenigstens zum Teil innerhalb der Fläche des Schaufelrads. Der Greiferförderer muss in das Schaufelrad eingreifen, was mechanisch aufwändig ist.In order for such devices, the gripper can act on the leading edge, which is located in the area of the compartment floor, the trajectory of the gripper is in supervision of the axis of rotation of the paddle wheel clearly within the paddle wheel. The products are led out of the compartments at the bottom and further conveyed by the gripper conveyor below the impeller and / or supported by gravity on a conveyor belt arranged below the impeller stored. This requires a certain minimum height of the overall device (paddle wheel and arranged below conveyor belt). In the view of the axis of rotation of the paddle wheel, the orbit of the grippers and their drive means is at least partially within the surface of the paddle wheel. The gripper conveyor must engage in the paddle wheel, which is mechanically complex.

Ein weiterer Nachteil liegt darin, dass die Vorlaufkante ergriffen wird. Am Ausgang einer Rotationsdruckmaschine ist die Vorlaufkante in der Regel die Falzkante des Produkts. Gerade bei dickeren bzw. mehrteiligen Druckereiprodukten vor dem Heften kann ein Ergreifen der Falzkante dazu führen, dass Produktteile herausfallen. Ausserdem muss das Produkt zwecks Weiterverarbeitung häufig mit der Falzkante voran in eine weiterverarbeitende Station eingeführt werden, z.B. in eine Einsteck- oder Schneidetrommel zum Einstecken von weiteren Produkten oder Schneiden der der Falzkante gegenüberliegenden Kante. In solchen Fällen ist daher ein Umgreifen notwendig, was die Übergabe an einen weiteren Greiferförderer oder ein Ablegen und neu Ergreifen notwendig macht. Dies ist aufgrund der zum Umgreifen notwendigen zusätzlichen Komponente aufwendig und teuer.Another disadvantage is that the leading edge is gripped. At the exit of a rotary printing press, the leading edge is usually the folded edge of the product. Especially with thicker or multi-part printed products before stapling a gripping the fold edge can cause product parts fall out. In addition, for further processing, the product often has to be fed with the leading edge into a further processing station, e.g. in a plug-in or cutting drum for inserting other products or cutting the edge opposite the fold edge. In such cases, embracing is therefore necessary, which makes the transfer to another gripper conveyor or a dropping and re-grasping necessary. This is complicated and expensive due to the additional component required for encompassing.

Aus der EP-A 0 265 735 ist bekannt, die Produkte zur Herstellung eines konstanten Schuppenabstands durch Angreifen an ihren Nachlaufkanten zu vergleichmässigen, nachdem sie aus den Abteilen entnommen wurden. Dazu ist unterhalb des Schaufelrads ein Förderband mit einem Hilfsförderer angeordnet, der sich in dieselbe Richtung bewegt wie die Umlaufrichtung am Ort der Übernahme. Der Hilfsförderer weist eine Mehrzahl von Klemmelementen auf. Die Produkte werden aufgrund der Schwerkraft und unterstützt durch Abstreifer, die an den Vorlaufkanten angreifen, aus den Abteilen des Schaufelrades nach unten herausgeschoben und kommen in Schuppenformation auf dem Förderband zu liegen. Die Klemmelemente dienen als Anschlag für die Nachlaufkanten der bereits abgelegten Produkte und klemmen diese gegen das Förderband fest. Sie sorgen damit für einen konstanten Abstand der Nachlaufkanten auf dem Förderband. Nachdem die Produkte auf diese Weise vergleichmässigt wurden, werden die Klemmelemente entfernt und die Produkte in der vergleichmässigten Schuppenformation weitergefördert.From the EP-A 0 265 735 It is known to equalize the products to produce a constant scale spacing by engaging their trailing edges after being removed from the compartments. For this purpose, a conveyor belt with an auxiliary conveyor is arranged below the paddle wheel, which moves in the same direction as the direction of rotation at the place of acquisition. The auxiliary conveyor has a plurality of clamping elements. The products are pushed out of the compartments of the paddle wheel due to gravity and supported by scrapers, which act on the leading edges, and come to lie in a scaly formation on the conveyor belt. The clamping elements serve as a stop for the trailing edges of the already stored products and clamp them firmly against the conveyor belt. They thus ensure a constant distance of Trailing edges on the conveyor belt. After the products have been made uniform in this way, the clamping elements are removed and the products in the uniform scale formation further promoted.

Wie bei den oben beschriebenen Vorrichtungen besteht hier der Nachteil, dass die Produkte unkontrolliert aus den Abteilen gleiten können. Aus diesem Grund sind bei der bekannten Vorrichtung Führungselemente für die Produkte, wie z.B. seitliche Leitbleche oder Stützriemen, vorhanden, die insbesondere die Nachlaufkanten stützen sollen. Das Verrutschen von Produktteilen beispielsweise unterschiedlichen Formats innerhalb eines Produkts kann damit nicht verhindert werden. Ausserdem bewegt sich das Förderband in die gleiche Richtung wie das Schaufelrad in seinem unteren Bereich. Damit bleibt die Rolle der Vor- und Nachlaufkanten in der auslaufenden Formation gegenüber der ursprünglichen Formation auch hier unverändert.As with the devices described above, there is the disadvantage here that the products can slide out of the compartments in an uncontrolled manner. For this reason, in the known device, guide elements for the products, such as e.g. lateral baffles or support belts, available, which should support in particular the trailing edges. The slippage of product parts, for example, different format within a product can not be prevented. In addition, the conveyor belt moves in the same direction as the paddle wheel in its lower portion. Thus, the role of the leading and trailing edges in the expiring formation compared to the original formation also remains unchanged.

Die EP-A1-0 854 105 offenbart ein Verfahrengem dem Oberbegriff des Anspruchs 1, und sie beschreibt ein Verfahren zum Fördern von flächigen Produkten, bei welchem die Produkte mit ihrer Vorlaufkante voran an einer Übergabestelle in entlang einer geschlossenen Umlaufbahn bewegte Abteile einer Aufnahmetrommel eingeführt und an einer Übernahmestelle mittels eines Wegförderers aus den Abteilen entnommen und weggefördert werden, wobei die Produkte an ihrer Nachlaufkante vom Wegförderer aus den Abteilen entnommen werden.The EP-A1-0 854 105 discloses a method according to the preamble of claim 1, and describes a method of conveying flat products, in which the products are introduced with their leading edge forward at a transfer point in a closed orbit moving compartments of a receiving drum and at a transfer point by means of a conveyor from the Are removed compartments and conveyed away, the products are removed at the trailing edge of the conveyor from the compartments.

Der Erfindung liegt daher die Aufgabe zugrunde, die oben beschriebenen Nachteile zu vermindern. Insbesondere soll ein Verfahren sowie eine Vorrichtung zur Verfügung gestellt werden, das bzw. die eine gut kontrollierte, zuverlässige Übergabe von Produkten, insbesondere gefalzten Druckereiprodukten, zwischen einem Schaufelrad und einer weiteren Fördereinrichtung ermöglicht.The invention is therefore based on the object to reduce the disadvantages described above. In particular, a method and a device is to be made available which enables a well-controlled, reliable transfer of products, in particular folded printed products, between a paddle wheel and a further conveying device.

Die Aufgabe wird gelöst durch ein Verfahren mit den Merkmalen von Anspruch 1 sowie eine Vorrichtung zur Durchführung des Verfahrens mit den Merkmalen von Anspruch 11. Vorteilhafte Weiterbildungen ergeben sich aus den abhängigen Ansprüchen, der Beschreibung und den Zeichnungen.The object is achieved by a method having the features of claim 1 and a device for carrying out the method with the features of claim 11. Advantageous developments emerge from the dependent claims, the description and the drawings.

Das erfindungsgemässe Verfahren und die erfindungsgemässe Vorrichtung zum Fördern von flächigen Produkten, insbesondere Druckereiprodukten, gehen davon aus, dass die Produkte an einer Übergabestelle in an sich bekannter Weise mit ihrer Vorlaufkante voran in Abteile eines Umlaufsystems eingeführt werden, die entlang einer geschlossenen Umlaufbahn bewegt werden. Es handelt sich um ein Schaufelrad wie im oben genannten Stand der Technik. Die Produkte werden vorzugsweise in einer Zuführrichtung zugeführt, die der Orientierung der Abteile beim Passieren der Übergabestelle entspricht. Indem die Abteilböden in einem Abstand von der Drehachse des Schaufelrads angeordnet und die Abteile abweichend von der radialen Richtung geöffnet sind, werden starke Beschleunigungen und Richtungsänderungen der Produkte bei der Übergabe vermieden und die Produkte daher sehr schonend behandelt. Die Vorlaufkante ist üblicherweise - aber nicht zwingend - eine Falzkante eines Druckereiprodukts. Falls das Produkt mehrfach gefalzt ist, handelt es sich insbesondere um die letzte Falzkante. Die Produkte werden durch die Abteile zu einer Übernahmestelle weitergefördert, beispielsweise durch Drehung des Schaufelrades. Einzeln zugeführte Produkte werden dabei üblicherweise im Vergleich zur Fördergeschwindigkeit in der Zuförderung abgebremst, indem sie bereits durch Einführen in das Umlaufsystem in eine kompaktere Formation umgelagert werden. Falls sie bereits in einer kompakten Formation, z.B. einer Schuppenformation oder in Kleinstapeln, zugeführt wurden, werden sie beim Einführen in die Abteile in der Regel vereinzelt. Nach Durchlaufen eines Teils der Umlaufbahn der Abteile, z.B. nach Drehung des Schaufelrades um 60 bis 180°, werden die Produkte an der Übernahmestelle von Greifern eines Greiferförderers übernommen und von diesen weggefördert. Erfindungsgemäss wird hierbei die Nachlaufkante ergriffen. Die Orientierung der Produkte ist dabei vorzugsweise so, dass sich die Nachlaufkante oberhalb der Vorlaufkante befindet, das Produkt also aufgrund der Schwerkraft auf dem Abteilboden abgestützt ist und somit vor und bei der Übernahme eine gut definierte Lage einnimmt. Durch die Relativbewegung von Abteil und Greifer wird das Produkt vom Umlaufsystem freigegeben und kann vom Greiferförderer weitergefördert werden.The inventive method and the inventive device for conveying flat products, especially printed products, assume that the products are introduced at a transfer point in a conventional manner with its leading edge ahead in compartments of a circulation system, which are moved along a closed orbit. It is a paddle wheel as in the above-mentioned prior art. The products are preferably fed in a feed direction which corresponds to the orientation of the compartments as they pass the transfer point. By arranging the compartment bottoms at a distance from the axis of rotation of the paddle wheel and opening the compartments differently from the radial direction, strong accelerations and changes in the direction of the products during transfer are avoided and the products are therefore handled very gently. The leading edge is usually - but not necessarily - a folded edge of a printed product. If the product is folded several times, it is in particular the last folded edge. The products are conveyed through the compartments to a takeover point, for example by rotation of the paddle wheel. Individually supplied products are usually braked in comparison to the conveying speed in the feed, in that they are already transferred to a more compact formation by being introduced into the circulation system. If they have already been fed into a compact formation, eg a scaly formation or in small stacks, they are usually singulated when introduced into the compartments. After passing through a portion of the orbits of the compartments, for example after rotation of the paddle wheel by 60 to 180 °, the products are taken at the takeover point of grippers of a gripper conveyor and conveyed away from them. According to the invention, the trailing edge is grasped here. The orientation of the products is preferably such that the trailing edge is above the leading edge, the product is thus supported on the compartment floor due to gravity and thus occupies a well-defined position before and during the acquisition. Due to the relative movement of compartment and gripper, the product is released by the circulation system and can be further promoted by the gripper conveyor.

Das Ergreifen der Nachlaufkante, die vorzugsweise eine nicht gefalzte offene Produktkante ist, hat den Vorteil, dass es ohne ein kompliziertes Ineinandergreifen von Umlaufsystem und Greiferförderer in platzsparender und konstruktiv einfacher Weise realisiert werden kann. Die Greifer können insbesondere in unmittelbarer Nähe zu den Abteilöffnungen auf die Nachlaufkante des im jeweiligen Abteil angeordneten Produkts einwirken, so dass die Produkte bis zum Ergreifen optimal durch die Abteilwand gestützt sind. Zur Anpassung an verschiedene Formate können die Abteilböden oder ein vorzugsweise vorhandener Abstreifer, der auf die am Abteilboden anliegende Vorlaufkanten einwirkt, verstellbar sein, so dass die Übernahme stets an derselben Stelle stattfinden kann.The gripping of the trailing edge, which is preferably a non-folded open product edge, has the advantage that it can be realized in a space-saving and structurally simple manner without a complicated meshing of circulation system and gripper conveyor. The grippers can act in particular in the immediate vicinity of the compartment openings on the trailing edge of the product disposed in the respective compartment product, so that the products are optimally supported by the compartment wall until gripping. To adapt to different formats, the compartment floors or a preferably existing scraper, which acts on the abutment bottom abutting the leading edge, be adjustable, so that the acquisition can always take place in the same place.

Das Ergreifen der Nachlaufkante hat den zusätzlichen Vorteil, dass vor allem gefalzte Druckereiprodukte in eine Lage gebracht werden, die für die Weiterverarbeitung optimal ist. Sie können beispielsweise mit der Falzkante voran in eine Einsteck- oder Schneidetrommel eingeführt werden, so dass die der Falzkante gegenüberliegende offene Kante ("Blume") bearbeitet werden kann. Ein weiterer Vorteil liegt darin, dass durch das Ergreifen des Produkts an der offenen Kante keine Produktbestandteile herausfallen können.Grasping the trailing edge has the additional advantage that especially folded printed products are brought into a position that is optimal for further processing. They can be introduced, for example, with the leading edge in a plug-in or cutting drum, so that the folded edge opposite the open edge ("flower") can be edited. Another advantage is that by grabbing the product at the open edge, no product components can fall out.

Schliesslich wird die Tatsache, dass die Produkte innerhalb des Umlaufsystems in der Regel bereits vereinzelt vorliegen, ausgenutzt, um sie mit dem Greiferförderer einzeln weiter zu fördern und weiter zu verarbeiten. Bei Bedarf können auch zwei oder mehr Produkte in ein Abteil und in einen Greifer eingeführt werden.Finally, the fact that the products are usually already isolated within the circulation system, exploited in order to further promote them with the gripper conveyor and process further. If necessary, two or more products may be introduced into a compartment and into a gripper.

Die Erfindung hat den weiteren Vorteil, dass Taktungenauigkeiten in der zugeführten Formation, die nicht bereits durch das Umlaufsystem ausgeglichen wurden oder die innerhalb des Umlaufsystems entstehen, ausgeglichen werden können. Dies deshalb, weil die Greifer vorzugsweise mit konstantem Abstand gefördert werden und die Produkte stets an derselben Stelle ergreifen, während diese noch im wesentlichen vollständig von den Abteilen gestützt und damit in sehr gut kontrollierbarer Weise positioniert sind.The invention has the further advantage that timing inaccuracies in the supplied formation, which have not already been compensated by the circulation system or which arise within the circulation system, can be compensated. This is because the grippers are preferably conveyed at a constant distance and the Always take products in the same place while they are still essentially fully supported by the compartments and thus positioned in a highly controllable manner.

Unter Schaufelrad wird jeder Förderer mit einer Mehrzahl von entlang einer Kreisbahn bewegten Abteilen verstanden, in die die Produkte eingelegt werden, ohne sie notwendigerweise aktiv zu fixieren. Aktive Fixierung (z.B. Klemmen) ist jedoch möglich. Es handelt sich beispielsweise um einen Drehkörper, der ein oder mehrere Abteile bzw. Taschen aufweist, die Produkte aufnehmen und durch Drehung des Drehkörpers um eine Drehachse entlang einer Kreisbahn fördern kann. Die oben erwähnten Schaufelräder (Sternräder), sind üblicherweise um eine horizontale Achse drehbar. Der Abteilboden liegt in einem bestimmten Abstand r von der Drehachse, der grösser als Null ist, um die Produkte in Abhängigkeit von der Drehlage durch Angreifen an den Vorlaufkanten aus den Abteilen schieben zu können. Die Abteile öffnen sich entgegen der Umlaufrichtung in einem Winkel relativ zur radialen Richtung, so dass sich die Vorlaufkante der Produkte in Umlaufrichtung des Schaufelrades gesehen vor der Nachlaufkante befindet. Die Abteile liegen beispielsweise im Querschnitt schuppenartig übereinander, um eine möglichst grosse Förderkapazität zu erreichen. Diese Überlegungen sind auch auf anders gestaltete Umlaufsysteme übertragbar. Die Abteile sind beispielsweise an Fördermitteln, z.B. einer Kette oder einem Seil, befestigt und werden in konstantem oder variablen wechselseitigem Abstand durch einen Antrieb entlang der Umlaufbahn bewegt. Es ist bevorzugt, aber nicht zwingend, dass die Umlaufbahn des Umlaufsystems in einer vertikalen Ebene liegt.By paddle wheel, each conveyor is understood to mean a plurality of compartments moved along a circular path into which the products are inserted, without necessarily actively fixing them. However, active fixation (e.g., clamping) is possible. It is, for example, a rotary body which has one or more compartments or pockets which can receive products and convey them by rotating the rotary body about an axis of rotation along a circular path. The above-mentioned paddle wheels (star wheels) are usually rotatable about a horizontal axis. The compartment floor is at a certain distance r from the axis of rotation, which is greater than zero, in order to push the products depending on the rotational position by attacking the leading edges of the compartments can. The compartments open opposite to the direction of rotation at an angle relative to the radial direction, so that the leading edge of the products seen in the direction of rotation of the impeller is located in front of the trailing edge. The compartments are, for example, in the form of a scale over one another in a scale, in order to achieve the largest possible conveying capacity. These considerations can also be applied to differently designed circulation systems. The compartments are for example attached to conveyors, e.g. a chain or rope, and are moved at a constant or variable mutual distance by a drive along the orbit. It is preferred, but not essential, that the orbit of the circulation system be in a vertical plane.

In einer vorteilhaften Variante der Erfindung befindet sich die Vorlaufkante eines Produkts während der Förderung durch das Umlaufsystem wenigstens bis zum Ergreifen des Produkts unterhalb von dessen Nachlaufkante. Dies hat den Vorteil, dass die Position der Vorlaufkante aufgrund der Schwerkraft zu jedem Zeitpunkt durch die Position des Abteilbodens oder eines eventuell vorhandenen Abstreifers definiert ist. Ein Herausgleiten des Produkts aus dem Abteil oder ein Verschieben des Produkts innerhalb des Abteils aufgrund der Schwerkraft wird verhindert. Mit der Vorlaufkante ist auch die Position der Nachlaufkante zu jedem Zeitpunkt der Bewegung gut definiert. Die Nachlaufkanten werden in dieser definierten Position direkt von den Greifern ergriffen, die sich dazu insbesondere oberhalb oder seitlich vom Umlaufsystem befinden und sich von oben daran annähern. Die Förderrichtung und -geschwindigkeit des Greiferförderers ist an die Förderrichtung und - geschwindigkeit des Umlaufsystems angepasst. Nach dem Ergreifen des Produkts kann sich die Vorlaufkante auch oberhalb der Nachlaufkante befinden, da die Produktlage nun bereits durch den Greifer gut definiert ist.In an advantageous variant of the invention, the leading edge of a product during conveyance through the circulation system is at least until the product is gripped below its trailing edge. This has the advantage that the position of the leading edge due to gravity at any time is defined by the position of the compartment floor or any existing scraper. Slipping out of the product from the compartment or shifting the product within the compartment due to gravity is prevented. With the leading edge and the position of the trailing edge is well defined at each time of movement. The trailing edges are gripped in this defined position directly from the grippers, which are in particular above or to the side of the circulation system and approach it from above. The conveying direction and speed of the gripper conveyor is adapted to the conveying direction and speed of the circulating system. After grasping the product, the leading edge can also be located above the trailing edge, since the product layer is already well defined by the gripper.

Die Produkte werden vorzugsweise im wesentlichen liegend (Nachlaufkante zur Zuführung gerichtet) bis aufrecht stehend (Nachlaufkante oben) in die Abteile eingeführt. Beim Ergreifen an der Übernahmestelle befinden sich die Produkte in einer aufrecht stehenden (Nachlaufkante oben) bis in etwa liegenden Lage (Nachlaufkante zum Greifer gerichtet). Aufgrund der oben beschriebenen Orientierung der Vor- und Nachlaufkanten sind keine zusätzlichen Elemente notwendig, um die Produkte in den Abteilen zu fixieren.The products are preferably substantially horizontal (trailing edge directed to the feed) upright (trailing edge above) introduced into the compartments. When picking up at the takeover point, the products are in an upright position (trailing edge at the top) to an approximately horizontal position (trailing edge directed towards the gripper). Due to the orientation of the leading and trailing edges described above, no additional elements are necessary to fix the products in the compartments.

Um die beschriebenen Produktorientierungen zu erreichen, sind die Zufördereinrichtung für die Produkte und der Greiferförderer zum Wegfördern der Produkte so angeordnet, dass die Produkte zu einem Zeitpunkt übergeben bzw. übernommen werden, nachdem bzw. bevor sich die Abteile derart neigen, dass sich die Vorlaufkante (bzw. ein Punkt am Abteilboden) unterhalb der Nachlaufkante (bzw. einem Punkt im Öffnungsbereich des Abteils) befinden würde. Die Übergabestelle befindet sich dazu vorzugsweise in einem oberen Bereich des Umlaufsystems. Die Übernahmestelle befindet sich dazu in der Regel in vertikaler Richtung unterhalb der Übergabestelle. Die Übernahmestelle befindet sich in der Aufsicht auf die Drehachse vorzugsweise seitlich neben dem Umlaufsystem. Dies hat auch den Vorteil einer geringen Bauhöhe und einfacheren Konstruktion der Vorrichtung, da sich die Bewegungsbahnen der Abteile (bzw. ihrer Öffnungsbereiche) und der Greifer nicht oder nur geringfügig überlappen müssen.In order to achieve the described product orientations, the product feed device and the gripper conveyor for conveying away the products are arranged so that the products are transferred at a time after or before the compartments tilt so that the leading edge (FIG. or a point on the compartment floor) below the trailing edge (or a point in the opening area of the compartment) would be. The transfer point is for this purpose preferably in an upper region of the circulation system. The takeover point is usually located in the vertical direction below the transfer point. The takeover office is located in Top view of the axis of rotation preferably laterally next to the circulation system. This also has the advantage of a low overall height and simpler construction of the device, since the trajectories of the compartments (or their opening areas) and the gripper need not or only slightly overlap.

Vorzugsweise sind die Übergabestelle, d.h. der Ort der Übergabe der Produkte an die Abteile des Umlaufsystems, und die Übernahmestelle so angeordnet und die Abteile so geformt, dass die horizontale Position der Vorlaufkante und der Nachlaufkante zwischen Übergabestelle und Übernahmestelle durch die Bewegung der Abteile entlang der Umlaufbahn des Umlaufsystems vertauscht wird. Das heisst, aus Sicht der Übernahmestelle liegt die Vorlaufkante in horizontaler Richtung bei der Übergabe vor der Nachlaufkante und bei der Übernahme im Bereich oder nach der Nachlaufkante. Das Produkt vollzieht beim Fördern eine Art Spitzkehre. Auf diese Weise lassen sich leicht, ohne grosse Beschleunigungen und damit produktschonend Formationen erzeugen, bei denen die (ursprüngliche) Nachlaufkante in Förderrichtung des Greiferförderers gesehen vorläuft und/oder bei denen die Produkte hängend und somit räumlich kompakt angeordnet sind. Dies hat, wie eingangs erläutert, Vorteile bei der Weiterverarbeitung der Produkte. Es führt auch zu einer besseren Genauigkeit in der auslaufenden Formation, da der Abteilboden als Anschlag wirkt und die Gegenkante (Nachlaufkante) ergriffen wird. Dies ist genauer als das Ergreifen der am Abteilboden anliegenden Kante und Wegfördern in Umlaufrichtung des Abteils.Preferably, the transfer site, i. the place of transfer of the products to the compartments of the circulation system, and the transfer point arranged and the compartments shaped so that the horizontal position of the leading edge and the trailing edge between the transfer point and transfer point by the movement of the compartments along the orbit of the circulation system is reversed. This means that, from the point of view of the takeover point, the leading edge lies in the horizontal direction at the transfer before the trailing edge and when taken over in the area or after the trailing edge. The product performs a kind of hairpin when conveying. In this way it is easy to produce without great accelerations and thus product gentle formations in which the (original) trailing edge seen in the conveying direction of the gripper conveyor and / or where the products are arranged hanging and thus spatially compact. This has, as explained above, advantages in the further processing of the products. It also leads to a better accuracy in the expiring formation because the compartment floor acts as a stop and the counter edge (trailing edge) is taken. This is more accurate than gripping the abutting edge of the compartment and conveying away in the direction of circulation of the compartment.

Die Produkte können zur Übergabe an das Umlaufsystem einzeln, in einer Schuppenformation und/oder in Kleinstapeln zum Umlaufsystem gefördert werden. Die Produkte kommen beispielsweise direkt aus einer Rotationsdruckmaschine, aus einem Zwischenspeicher (z.B. Produktewickel) oder einem anderen vorgelagerten Prozess.The products can be conveyed to the circulating system individually, in a scale formation and / or in small stacks to the circulation system for transfer to the circulation system. The products come, for example, directly from a rotary printing press, from a buffer (eg product wrapping) or another upstream process.

Die Übernahme der Produkte durch die Greifer wird vorzugsweise dadurch unterstützt, dass die Produkte, z.B. durch Angreifen an den Vorlaufkanten mittels einer Abstreifeinrichtung, entgegen der Schwerkraft relativ zum Abteil verschoben werden, so dass sie ein Stück weit aus dem Abteil ragen und leichter ergriffen werden können. Für eine zu jedem Zeitpunkt stabile Produktlage ist der Betrag, um den die Produkte aus dem Abteil ragen, vorzugsweise im Vergleich zur Gesamtlänge des Produkts klein, besonders bevorzugt kleiner als ein Viertel bis kleiner als ein Zehntel der Gesamtlänge des Produkts. Die Abstreifeinrichtung ist vorzugsweise zur Anpasung an unterschiedliche Produktformate verschiebbar, um zu erreichen, dass sich die Nachlaufkante trotz unterschiedlicher Produktlänge im Bereich der Übernahmestelle stets an der gleichen Position befindet.The acceptance of the products by the grippers is preferably supported by the fact that the products, e.g. by attacking the leading edges by means of a scraper, are moved against gravity relative to the compartment so that they protrude a little way out of the compartment and can be easily taken. For a stable product position at all times, the amount by which the products protrude from the compartment is preferably small compared to the total length of the product, more preferably less than one quarter to less than one tenth of the total length of the product. The stripping device is preferably displaceable for adaptation to different product formats in order to ensure that the trailing edge is always in the same position despite different product lengths in the region of the transfer point.

Vorzugsweise dient eine Überwachungseinrichtung zur Überwachung der dem Umlaufsystem zugeführten Formation von Produkten, insbesondere zur Feststellung von Unregelmässigkeiten oder fehlerhaften Produkten. Es kann sich beispielsweise um einen optischen Sensor handeln. Die Überwachungseinrichtung kommuniziert mit einer Steuereinrichtung, indem sie ein entsprechendes Signal abgibt, beispielsweise beim Eintreffen eines Produkts oder bei Vorliegen einer Unregelmässigkeit oder eines fehlerhaften Produkts. Die Steuereinrichtung steuert aufgrund dieses Signals die Bewegung des Umlaufsystems und/oder des Greiferförderers und/oder der Greifers, insbesondere mit dem Ziel, Fehler und Unregelmässigkeiten in der auslaufenden, vom Greiferförderer erzeugten Formation auszugleichen. Beispielsweise gibt die Überwachungseinrichtung beim Eintreffen eines jeden Produkts ein Taktsignal an die Steuereinrichtung, das zur Steuerung der Umlaufbewegung des Umlaufsystems und des Greiferförderers dient. In einer anderen Variante werden Umlaufsystem und Greiferförderer wie üblich synchron angetrieben, aber die Umlaufgeschwindigkeit wird aufgrund eines Signals der Überwachungseinrichtung gesteuert angepasst, um beispielsweise Lücken auszugleichen (z.B. kurzzeitiger Stillstand). In einer weiteren Variante werden die Greifer einzeln angesteuert, um beispielsweise fehlerhafte Produkte nicht aufzunehmen, sondern gezielt abzuweisen. Ein entsprechendes Verfahren ist bereits in der nicht vorveröffentlichten Schweizer Patentanmeldung Nr. 1806/07 beschrieben, auf die hier Bezug genommen wird. In allen Fällen ist die Steuereinrichtung steuerungstechnisch mit dem Antrieb des Umlaufsystems bzw. des Greiferförderers bzw. etwaiger steuerbarer Kulissen verbunden und kann Signale an diese Komponenten übermitteln.Preferably, a monitoring device is used to monitor the circulation system supplied formation of products, in particular for the detection of irregularities or faulty products. It may, for example, be an optical sensor. The monitoring device communicates with a control device by emitting a corresponding signal, for example when a product arrives or in the event of an irregularity or a defective product. On the basis of this signal, the control device controls the movement of the circulation system and / or the gripper conveyor and / or the gripper, in particular with the aim of compensating errors and irregularities in the outgoing formation produced by the gripper conveyor. For example, upon the arrival of each product, the monitoring device gives a clock signal to the control device, which serves to control the orbital motion of the circulation system and the gripper conveyor. In another variant, the circulation system and gripper conveyor are driven synchronously as usual, but the circulation speed is adjusted in a controlled manner on the basis of a signal of the monitoring device, for example to compensate for gaps (eg short-term standstill). In a further variant, the grippers are individually controlled, for example, defective products not but deliberately reject. A corresponding method is already described in the unpublished Swiss patent application no. 1806/07 described herein incorporated by reference. In all cases, the control device is control technology connected to the drive of the circulation system or the gripper conveyor or any controllable scenes and can transmit signals to these components.

Beispiele der Erfindung sind in den Zeichnungen dargestellt und im Folgenden beschrieben. Es zeigen rein schematisch:

  • Fig. 1 Eine erfindungsgemässe Vorrichtung mit einem Schaufelrad als Umlaufsystem in Seitenansicht auf die Drehachse des Schaufelrads bei der Verarbeitung von Produkten eines ersten Formats;
  • Fig. 2 die Vorrichtung aus Fig. 1 bei der Verarbeitung von Produkten eines kleineren zweiten Formats;
  • Fig. 3 die Förderung gefalzter Produkte durch den Greiferförderer und ihre Übergabe an einen Bandförderer;
  • Fig. 4 die Förderung gefalzter Produkte durch den Greiferförderer und ihre Weiterverarbeitung in einer Einsteck- oder Schneidevorrichtung.
Examples of the invention are illustrated in the drawings and described below. It shows purely schematically:
  • Fig. 1 An inventive device with a paddle wheel as a circulation system in side view of the axis of rotation of the paddle wheel in the processing of products of a first format;
  • Fig. 2 the device off Fig. 1 when processing products of a smaller second format;
  • Fig. 3 the conveying of folded products by the gripper conveyor and its transfer to a belt conveyor;
  • Fig. 4 the promotion of folded products by the gripper conveyor and their further processing in a plug-in or cutting device.

Fig. 1 zeigt schematisch eine erfindungsgemässe Vorrichtung 10 mit einem Schaufelrad 20 als Umlaufsystem, einem Greiferförderer 30 und einem Zuförderer 40 in Ansicht auf die Drehachse D des Schaufelrads 20. Fig. 1 schematically shows an inventive device 10 with a paddle wheel 20 as a circulation system, a gripper conveyor 30 and a feed conveyor 40 in view of the axis of rotation D of the impeller 20th

Das Schaufelrad 20 hat mehrere Abteile 22, die durch relativ zur Drehachse D leicht konvex gebogene Stütz-/Trennelemente 23 definiert sind. Die Trennelemente 23 winden sich nach Art einer sehr langgezogenen Spirale um die Drehachse D. Die Wände 26, 27 eines Abteils 22 sind durch die einander zugewandten Oberflächen zweier benachbarter Trennelemente 23 definiert. Die Trennelemente 23 laufen aufeinander zu und definieren so bzw. durch ein Verbindungsstück den Abteilboden 24. Die Abteilböden 24 liegen etwa in konstantem Abstand r von der Drehachse D. Die Abteile 22 öffnen sich entgegen der hier im Uhrzeigersinn erfolgenden Drehrichtung des Schaufelrads 20. Im Bereich der unteren Hälfte des Schaufelrads 20 befindet sich eine nicht mit umlaufende, horizontal verschiebbare Abstreifeinrichtung 28 mit einer im oberen Bereich gebogenen, im weiteren Verlauf etwa vertikal ausgerichteten Führungsfläche 29. Die Abstreifeinrichtung 28 ist mittels eines geeigneten Antriebs 28' in horizontaler Richtung verschiebbar.The paddle wheel 20 has a plurality of compartments 22 which are defined by supporting / separating elements 23 which are slightly convexly bent relative to the axis of rotation D. The separating elements 23 wind in the manner of a very elongated spiral about the axis of rotation D. The walls 26, 27 of a compartment 22 are defined by the mutually facing surfaces of two adjacent separating elements 23. The dividing elements 23 converge towards one another and thus define the compartment bottom 24 by way of a connecting piece. The compartment bottoms 24 lie at a constant distance r from the axis of rotation D. The compartments 22 open counter to the direction of rotation of the impeller 20 in the clockwise direction The lower half of the paddle wheel 20 is a non-rotating, horizontally displaceable wiper 28 with a bent in the upper region, in the further course approximately vertically oriented guide surface 29. The stripping device 28 by means of a suitable drive 28 'in the horizontal direction.

Der Zuförderer 40 ist hier ein Bandförderer, auf dessen Förderband die Produkte 12 einzeln aufliegen. Ein Zufördern von Kleinstapeln oder einer Schuppenformation ist ebenfalls möglich. Der vordere Bereich 42 des Zuförderers 40 ragt bis in das Schaufelrad 20. Dazu sind der Zuförderer 40 und/oder die Trennelemente 23 ineinander greifend ausgestaltet. Der Ort, an dem die Produkte 12 in die Abteile 22 eingeführt werden, wird mit Übergabebereich A bezeichnet. Der Übergabebereich A befindet sich in Drehrichtung kurz vor dem oberen Scheitelpunkt S der Bewegungsbahn U der Abteile 22 etwa bei der Position "11 Uhr". Mit U ist vorliegend beispielhaft die Bewegungsbahn eines radial aussen liegenden Punktes auf den Trennelementen 23 bezeichnet. Die Zuförderrichtung F ist durch die Orientierung des Bandförderers vorgegeben. Die Orientierung der Abteile 22 (z.B. Orientierung der nachlaufenden Abteilwand 26) entspricht im Übergabebereich A in etwa der Zuförderrichtung F.The feed conveyor 40 is here a belt conveyor, on the conveyor belt, the products 12 rest individually. A Zufördern of small stacks or a scaly formation is also possible. The front region 42 of the feed conveyor 40 protrudes into the paddle wheel 20. For this purpose, the feed conveyor 40 and / or the separating elements 23 are designed to engage in one another. The location where the products 12 are introduced into the compartments 22 is referred to as the transfer area A. The transfer area A is located in the direction of rotation shortly before the upper vertex S of the path of movement U of the compartments 22 approximately at the position "11 o'clock". In the present case, U is the movement path of a radially outward point on the separating elements 23. The feed direction F is predetermined by the orientation of the belt conveyor. The orientation of the compartments 22 (eg orientation of the trailing compartment wall 26) corresponds approximately to the feed direction F in the transfer area A.

Der Greiferförderer 30 hat mehrere einzeln steuerbare Greifer 32, die entlang einer geschlossenen Umlaufbahn U' bewegt werden. Mit U' ist vorliegend beispielhaft die Bewegungsbahn von hier nicht näher dargestellten Antriebsmitteln bezeichnet, mit denen die Greifer 32 verbunden sind. Die Greifer 32 sind in an sich bekannter Weise mittels geeigneter Steuerkulissen relativ zur Umlaufbahn U' verschwenkbar. Ebenso kann die Stellung der beiden Greiferbacken 34, 35, z.B. offenes oder geschlossenes Greifermaul, mit geeigneten Steuerkulissen eingestellt werden. Der Greifer 32 hat dazu Steuerelemente 36, 37 in Form von Steuerrollen, die mit den erwähnten Kulissen zwecks Schliessen, Öffnen und/oder Verschwenken des Greifers 32 zusammenwirken. Der Bereich, in dem die Greifer 32 geschlossen werden, wird auch als Übernahmestelle B bezeichnet. Die Übernahmestelle B befindet sich seitlich vom Schaufelrad 20 etwa bei der Position "3 Uhr". Sie befindet sich in vertikaler Richtung unterhalb der Übergabestelle A.The gripper conveyor 30 has a plurality of individually controllable grippers 32, which are moved along a closed orbit U '. By U 'is the present example, the trajectory of drive means not shown here, referred to, with which the gripper 32 are connected. The grippers 32 are pivotable in a conventional manner by means of suitable control slides relative to the orbit U '. Likewise, the position of the two gripper jaws 34, 35, e.g. open or closed gripper jaw can be adjusted with suitable control slots. The gripper 32 has to controls 36, 37 in the form of control rollers, which cooperate with the aforementioned scenes for the purpose of closing, opening and / or pivoting of the gripper 32. The area in which the grippers 32 are closed is also referred to as takeover point B. The transfer point B is located laterally of the paddle wheel 20 approximately at the position "3 o'clock". It is located in the vertical direction below the transfer point A.

Unterhalb des Greiferförderers 30 befindet sich eine Stützfläche 50.Below the gripper conveyor 30 is a support surface 50th

Die Funktion der Vorrichtung wird im Folgenden beschrieben: An der Übergabestelle A werden die Produkte 12 mit einer zwischen Vorlaufkante 14 und Nachlaufkante 16 gemessenen Produktlänge L mit ihrer Vorlaufkante 14 voran in die Abteile 22 eingeführt, so dass sich die Vorlaufkante 14 im Bereich des Abteilbodens 24 und die Nachlaufkante 16 im Bereich der Abteilöffnung 25 befindet. Die Abteile 22 sind im Bereich der Übergabestelle A so orientiert, dass der Abteilboden 24 unterhalb des vorderen Endes 42 des Zuförderers 40 liegt. Aufgrund des Abstands r zur Drehachse bewegt sich der Abteilboden 24 bei und nach der Aufnahme eines Produkts 12 im Abteil 22 zunächst mit einer Bewegungskomponente in ursprünglicher Förderrichtung F. Das Produkt 12 wird daher unmittelbar nach dem Einführen in das Abteil 22 im Wesentlichen in seiner ursprünglichen Förderrichtung F weiterbewegt und erst bei weiterer Drehung des Schaufelrads sanft einem Richtungswechsel unterworfen. Starke Beschleunigungen werden daher vermieden. Beim Weiterfördern in den Abteilen 22 liegen die Produkte 12 zunächst an der in Umdrehungsrichtung nachlaufenden Abteilwand 26 und im weiteren Verlauf an der in Umdrehungsrichtung vorlaufenden Abteilwand 27 an. In dieser Lage erreichen sie die Übernahmestelle B. Deren Position ist so gewählt, dass sich die Vorlaufkanten 14 wenigstens bis zum Ergreifen der Produkte 12 durch die Greifer 32 unterhalb der Nachlaufkanten 16 befinden. Mit anderen Worten sind die Abteile 22 zwischen Übergabestelle A und Übemahmestelle B so orientiert, dass sich die Abteilböden 24 unterhalb der Abteilöffnungen 25 befinden. Die Greifer 32 werden offen zur Übernahmestelle B bewegt und dort geschlossen. Sie können bei der Annäherung an die Übernahmestelle B mit ihren Greiferbacken 34, 35 geringfügig zwischen die Abteilwände 26, 27 eingreifen, so dass eine enge Annäherung möglich ist. Die eigentliche Übernahme durch Schliessen des Greifers 32 erfolgt im vorliegenden Beispiel jedoch ausserhalb der Umlaufbahn U bzw. ausserhalb der Fläche, die vom Schaufelrad 20 in Aufsicht auf dessen Drehachse D überdeckt wird. Die Abteilwände 26, 27 müssen daher keine Ausnehmungen zum Eingreifen der Greifer 32 aufweisen. Die Abstreifvorrichtung 28 dient dazu, die Produkte 12 durch Angreifen an den zunächst am Abteilboden 24 liegenden Vorlaufkanten 14 entgegen der Schwerkraft um ein kleines Stück aus den Abteilen hinauszuschieben, so dass die Nachlaufkanten 16 in den Bereich der Greifer 32 bzw. der distalen Enden der Greiferbacken 34, 35 gebracht und dort sicher ergriffen werden können. Zu jedem Zeitpunkt der Bewegung sind die Produkte 12 daher in einer gut definierten Lage.The function of the device is described below: At the transfer point A, the products 12 are introduced into the compartments 22 with a product length L measured between leading edge 14 and trailing edge 16 with their leading edge 14, so that the leading edge 14 in the area of the compartment floor 24 and the trailing edge 16 is located in the region of the compartment opening 25. The compartments 22 are oriented in the region of the transfer point A so that the compartment floor 24 is below the front end 42 of the feed conveyor 40. Due to the distance r to the axis of rotation, the compartment bottom 24 moves during and after receiving a product 12 in the compartment 22 initially with a movement component in the original conveying direction F. The product 12 is therefore immediately after insertion into the compartment 22 substantially in its original conveying direction F further moved and only with further rotation of the paddle wheel gently subjected to a change of direction. Strong accelerations are therefore avoided. When further conveying in the compartments 22, the products 12 are initially on the trailing in the direction of rotation compartment wall 26 and in the further course of the leading in the direction of rotation compartment wall 27 at. In this position they reach the transfer point B. Their position is chosen so that the leading edges 14 are at least until the products 12 are gripped by the grippers 32 below the trailing edges 16. In other words, the compartments 22 between transfer point A and transfer point B are oriented so that the compartment floors 24 are located below the compartment openings 25. The grippers 32 are moved open to the transfer point B and closed there. When approaching the transfer point B with their gripper jaws 34, 35 they can intervene slightly between the compartment walls 26, 27, so that a close approximation is possible. The actual takeover by closing the gripper 32 takes place in the present example, however, outside the orbit U or outside the surface, which is covered by the impeller 20 in plan view on the axis of rotation D. The compartment walls 26, 27 must therefore have no recesses for engaging the gripper 32. The stripping device 28 serves to push the products 12 a little further out of the compartments by engaging the leading edges 14, which are initially located on the compartment floor 24, so that the trailing edges 16 reach into the region of the grippers 32 and the distal ends of the gripper jaws 34, 35 brought and can be taken there safely. At any time during the movement, the products 12 are therefore in a well-defined position.

Nach dem Ergreifen werden die Produkte 12 durch den Greiferförderers 30 aus den Abteilen gezogen und weitergefördert. Hierbei kann eine räumlich sehr dichte Formation aus nebeneinander hängend geförderten vereinzelten Produkten 12 hergestellt werden. Wenigstens unmittelbar nach dem Ergreifen liegt die Nachlaufkante 16 in Förderrichtung des Greiferförderers 30 vor der Vorlaufkante 14. Die Rollen von Vor- und Nachlaufkante 14, 16 sind daher gegenüber der ursprünglichen Formation vertauscht.After grasping the products 12 are pulled by the gripper conveyor 30 from the compartments and further promoted. In this case, a spatially very dense formation can be produced from individual products 12 suspended from one another suspended from one another. At least immediately after gripping the trailing edge 16 is in the conveying direction of the gripper conveyor 30 in front of the leading edge 14. The roles of leading and trailing edge 14, 16 are therefore reversed compared to the original formation.

Die Produkte 12 können auch, wie hier schematisch gezeigt, an der herabhängenden (ursprünglichen) Vorlaufkante 14 durch eine Stützfläche 50 abgestützt werden. Die Stützfläche 50 kann auch das Förderband eines weiteren Bandförderers sein, auf dem die Produkte anschliessend auch ganz abgelegt werden können. Auf diese Weise kann ein Umlagern der Produkte (Vorlaufkante wird zur Nachlaufkante und umgekehrt) auf schonende Weise realisiert werden. Dies ist in Fig. 3 beispielhaft gezeigt.The products 12 can also, as shown schematically here, be supported on the drooping (original) leading edge 14 by a support surface 50. The support surface 50 may also be the conveyor belt of a further belt conveyor on which the products can subsequently also be completely deposited. In this way, a repositioning of the products (leading edge becomes the trailing edge and vice versa) can be realized in a gentle manner. This is in Fig. 3 shown by way of example.

Die Steuereinrichtung 70 dient zur Synchronisation der Bewegung von Zuförderer 40, Umlaufsystem 20 und Greiferförderer 30. Optional erhält sie von einer Überwachungseinrichtung 72 ein Signal, das zur Anpassung der Bewegungen dieser Komponenten in der im allgemeinen Beschreibungsteil erwähnten Weise dient. Auf diese Weise können Unregelmässigkeiten ausgeglichen oder fehlerhafte Produkte ausgeschleust werden.The control device 70 is used to synchronize the movement of feed conveyor 40, circulation system 20 and gripper conveyor 30. Optionally, it receives from a monitoring device 72, a signal which serves to adapt the movements of these components in the manner described in the general description part. In this way, irregularities can be compensated or defective products can be eliminated.

Fig. 2 zeigt die Vorrichtung aus Fig. 1 bei der Verarbeitung von Produkten 12 mit einer Produktlänge L', die kleiner als die Produktlänge L der Produkte aus Fig. 1 ist. Diese Produkte 12 kommen ebenfalls mit der Vorlaufkante 14 auf dem Abteilboden 24 zu liegen. Aufgrund der kürzeren Produktlänge L' liegt die Nachlaufkante 16 tiefer im Abteil 22. Die Abstreifeinrichtung 28 ist in horizontaler Richtung verschiebbar, um die Längenunterschiede der Produkte 12 so auszugleichen, dass die Übernahme durch die Greifer 32 an stets derselben Position erfolgen kann. Fig. 2 shows the device Fig. 1 in the processing of products 12 with a product length L ', which is smaller than the product length L of the products Fig. 1 is. These products 12 also come to rest with the leading edge 14 on the compartment floor 24. Due to the shorter product length L 'the trailing edge 16 is deeper in the compartment 22. The stripping device 28 is displaced in the horizontal direction to compensate for the differences in length of the products 12 so that the acquisition by the gripper 32 can always be done in the same position.

Fig. 3 zeigt die Übergabe der Produkte 12 an einen Bandförderer 52, dessen Förderband die oben erwähnte Stützfläche 50 darstellt. Dieser bewegt sich in dieselbe Richtung wie die Greifer 32 des darüber angeordneten Greiferförderers 30. Die Produkte 12 werden nach der Übernahmestelle B in einer hängenden Lage gefördert, wobei sich die (ursprüngliche) Vorlaufkante 14 auf der Stützfläche 50 aufliegt und in Förderrichtung des Greiferförderers 30 hinter der ergriffenen (ursprünglichen) Nachlaufkante 16 angeordnet ist. Durch ein Auslöseelement 38 werden die Greifer 32 an einer Abgabestelle C geöffnet. Damit wird auf dem Förderband eine Schuppenformation erzeugt, in der die offenen (ursprünglichen) Nachlaufkanten 16 vorlaufen und auf dem vorangehenden Produkt 12 aufliegen. Fig. 3 shows the transfer of the products 12 to a belt conveyor 52, whose conveyor belt represents the above-mentioned support surface 50. This moves in the same direction as the gripper 32 of the above arranged gripper conveyor 30. The products 12 are conveyed to the transfer point B in a hanging position, with the (original) leading edge 14 on the support surface 50th rests and in the conveying direction of the gripper conveyor 30 behind the gripped (original) trailing edge 16 is arranged. By a triggering element 38, the gripper 32 are opened at a delivery point C. Thus, an imbricated formation is produced on the conveyor belt, in which the open (original) trailing edges 16 precede and rest on the preceding product 12.

Durch die Entnahme der Produkte 12 mit Greifern 32 aus dem Schaufelrad 20 wird eine exakt getaktete Schuppenformation bereits bei der Übernahme und folglich auch beim Ablegen erreicht.By removing the products 12 with grippers 32 from the paddle wheel 20 an exactly clocked dandruff formation is already achieved during the acquisition and consequently also when depositing.

Fig. 4 zeigt die Übergabe der Produkte 12 vom Greiferförderer 30 an eine Einsteck- oder Schneidetrommel 60. Die Greifer 32 werden an einer Abgabestelle C durch ein Auslöseelement 38 geöffnet, so dass die Produkte 12 nach unten in Abteile der Einsteck- oder Schneidetrommel 60 fallen. Die gefalzte offene (ursprüngliche) Vorlaufkante 14 befindet sich am Abteilboden und die (ursprüngliche) Nachlaufkante 16 im Bereich der Öffnung des Abteils und somit in der richtigen Position für den Schneidevorgang. So kann mit wenig Aufwand die richtige Produktlage erzielt werden, um die gewünschte Bearbeitung vornehmen zu können. Fig. 4 shows the transfer of the products 12 from the gripper conveyor 30 to a plug-in or cutting drum 60. The grippers 32 are opened at a delivery point C by a trigger element 38 so that the products 12 fall down into compartments of the plug-in or cutting drum 60. The folded open (original) leading edge 14 is located on the compartment floor and the (original) trailing edge 16 in the region of the opening of the compartment and thus in the correct position for the cutting process. Thus, the right product position can be achieved with little effort to make the desired processing.

Claims (17)

  1. A method for conveying sheet-like products (12), in particular printed products, with which the products (12) are introduced at a transfer location (A), with their leading edge (14) in front, into compartments (22) of a circulating system (20) which are moved along a closed circulatory path (U), and at a receiving location (B) are removed from the compartments (22), and conveyed away, by means of grippers (32) of a gripper conveyor (30), characterized in that the circulating system is a paddle wheel (20) which can be rotated about an axis of rotation (D) and whose compartments (22) have compartment bases (24) distanced to the axis of rotation, and the compartments (22) open opposite to the circulating direction at an angle relative to the radial direction, so that the leading edge (14) of the products (12) seen in the circulating direction of the paddle wheel (20) is located upstream of the trailing edge (16), and that the products (12) are gripped at their trailing edge (16) by the grippers (32).
  2. The method as claimed in claim 1, characterized in that the grippers (32) act from the outside on the trailing edge (16) of the product (12) arranged in the respective compartment (22), in the region of the compartment openings (25).
  3. The method as claimed in claim 1 or 2, characterized in that, the leading edge (14) of a product (12) during conveying between the transfer location (A) and the receiving location (B), at least until the product (12) is gripped, is located beneath the trailing edge (16) of the product.
  4. The method as claimed in one of the preceding claims, characterized in that the grippers (32) convey the products (12) such that the trailing edge (16) of a product (12), at least directly after the product has been received, is located upstream of the leading edge (14) of the product (12), as seen in the conveying direction of the gripper conveyor (30).
  5. The method as claimed in one of the preceding claims, characterized in that the products (12), prior to being received by the grippers (32), are pushed out of the compartments (22), preferably counter to gravitational force, such that the trailing edges (16) can be gripped by the grippers (32).
  6. The method as claimed in claim 5, characterized in that the products (12) are pushed out of the compartments (22) by action on their leading edges (14).
  7. The method as claimed in claim 5 or 6, characterized in that the products (12), prior to being received by the grippers (32), are pushed out of the compartments (22) by a predetermined amount which is preferably smaller than a quarter, particularly preferably smaller than a tenth, of the overall length (L, L') of the product (12).
  8. The method as claimed in one of the preceding claims, characterized in that the gripper conveyor (30) receives the products (12) laterally of the circulating system (20) and outside the circulating system (20), as seen in a plan view of the movement plane of the circulating system (20).
  9. The method as claimed in one of the preceding claims, characterized in that the products (12) arc conveyed to the circulating system (20) individually, in an imbricated formation and/or in small stacks.
  10. The method as claimed in one of the preceding claims, characterized in that the formation of products (12) which is fed to the circulating system is monitored by means of a monitoring device, and the movement of the circulating system (20) and/or of the gripper conveyor (30) and/or of the grippers (32) is controlled correspondingly.
  11. An apparatus for implementing the method as claimed in one of the preceding claims, comprising a circulating system (20) which has compartments (22) moved along a closed circulatory path (U) and to which products (12) at a transfer location (A) arc fed with their leading edge (14) in front, wherein the circulating system is a paddle wheel which can be rotated about an axis of rotation (D) and whose compartments (22) have compartment bases (24) distanced to the axis of rotation, and the compartments (22) open opposite to the circulating direction at an angle relative to the radial direction, so that the leading edge (14) of the products (12), seen in the circulating direction of the paddle wheel (20), is located upstream of the trailing edge (16), and also comprising a gripper conveyor (30) with a plurality of grippers (32), wherein the gripper conveyor (30) is arranged relative to the circulating system (20) such that the grippers (32), at a receiving location (B), arc capable of gripping the trailing edges (16) of the products (12) introduced into the compartments (22) of the circulating system (20).
  12. The apparatus as claimed in claim 11, characterized in that the transfer location (A) and the receiving location (B) are positioned such that the leading edge (14) of a product (12), during conveying through the circulating system (20), at least until the product (12) is gripped, is located beneath the trailing edge (16) of the product.
  13. The apparatus as claimed in either of claims 11-12, characterized in that the gripper conveyor (30) is arranged relative to the circulating system (20) such that the trailing edge (16) of a product (12), at least immediately after the product has been received, is located upstream of the leading edge (14) of the product (12), as seen in the conveying direction of the gripper conveyor (30).
  14. The apparatus as claimed in one of claims 11-13, characterized in that the gripper conveyor (30) is arranged laterally of the circulating system (20) and outside the circulating system (20), as seen in a plan view of the movement plane of the circulating system (20).
  15. The apparatus as claimed in one of claims 11-14, characterized by a stripping device (28) which is capable of pushing the products (12) out of the compartments (22) preferably counter to gravitational force.
  16. The apparatus as claimed in claim 15, characterized in that the stripping device (28) can be displaced, preferably in the horizontal direction, relative to the circulating system (20) for adaptation to different product formats.
  17. The apparatus as claimed in one of claims 11-16, characterized by a monitoring device for monitoring the formation of products (12) which is fed to the circulating system (20), in particular for determining irregularities or defective products, and this monitoring device is capable of communicating with a control device, wherein the control device is capable of controlling the movement of the circulating system (20) and/or of the gripper conveyor (30) and/or of the gripper (32).
EP09704092A 2008-01-24 2009-01-20 Method and device for conveying planar products Not-in-force EP2265528B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH982008 2008-01-24
PCT/CH2009/000022 WO2009092175A2 (en) 2008-01-24 2009-01-20 Method and device for conveying planar products

Publications (2)

Publication Number Publication Date
EP2265528A2 EP2265528A2 (en) 2010-12-29
EP2265528B1 true EP2265528B1 (en) 2012-05-09

Family

ID=39402591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09704092A Not-in-force EP2265528B1 (en) 2008-01-24 2009-01-20 Method and device for conveying planar products

Country Status (7)

Country Link
US (1) US8297432B2 (en)
EP (1) EP2265528B1 (en)
AT (1) ATE556968T1 (en)
AU (1) AU2009208038B2 (en)
CA (1) CA2710749A1 (en)
DK (1) DK2265528T3 (en)
WO (1) WO2009092175A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH703816A1 (en) * 2010-09-17 2012-03-30 Ferag Ag Device for transferring products to a grab sponsors.
CH705026A2 (en) * 2011-05-16 2012-11-30 Ferag Ag Apparatus and method for generating an uninterrupted imbricated stream of flat product units, in particular printed products.
JP6296336B2 (en) * 2013-07-19 2018-03-20 株式会社リコー Paper processing apparatus and image forming apparatus
EP3085502B1 (en) * 2015-04-21 2017-11-01 Müller Martini Holding AG Method for operating an apparatus for performing cutting operations of open formatcards of a printed product

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3108681A1 (en) * 1981-03-07 1982-09-30 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach "DEVICE FOR REMOVING PRINTED COPIES FROM THE BUCKET WHEELS OF A FOLDING APPARATUS"
DE3767433D1 (en) 1986-10-22 1991-02-21 Ferag Ag METHOD AND DEVICE FOR TAKING FOLDED PRINTED PRODUCTS FROM PRINTING MACHINES.
CH680285A5 (en) 1987-10-02 1992-07-31 Ferag Ag
US4813662A (en) * 1988-01-29 1989-03-21 Hall Processing Systems High speed drum processing apparatus
ATE73107T1 (en) * 1988-06-14 1992-03-15 Ferag Ag EQUIPMENT FOR COLLECTING, COLLATING AND INSERTING PRINTED PRODUCTS.
EP0568883B1 (en) 1992-05-07 1995-08-30 Ferag AG Management system for faults in overlapping formations of printed products
DE59704238D1 (en) 1997-01-16 2001-09-13 Ferag Ag Method and device for processing flat printed products, such as newspapers, magazines and parts thereof
US20030021659A1 (en) * 2001-07-27 2003-01-30 Michler James R. Vibration reduction assembly for a web converting machine component
ATE302154T1 (en) * 2001-07-30 2005-09-15 Ferag Ag METHOD AND DEVICE FOR BRINGING FLAT OBJECTS TOGETHER AND FORWARDING THEM TOGETHER
US6851544B2 (en) * 2003-05-19 2005-02-08 Graphic Management Associates, Inc. Transfer device

Also Published As

Publication number Publication date
US8297432B2 (en) 2012-10-30
ATE556968T1 (en) 2012-05-15
EP2265528A2 (en) 2010-12-29
AU2009208038A1 (en) 2009-07-30
AU2009208038B2 (en) 2013-05-16
US20100326795A1 (en) 2010-12-30
CA2710749A1 (en) 2009-07-30
WO2009092175A2 (en) 2009-07-30
WO2009092175A3 (en) 2010-12-09
DK2265528T3 (en) 2012-08-20

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