EP3354426B1 - Correction de position pour les marques de repérage en coupant carton ondulé - Google Patents

Correction de position pour les marques de repérage en coupant carton ondulé Download PDF

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Publication number
EP3354426B1
EP3354426B1 EP18152293.9A EP18152293A EP3354426B1 EP 3354426 B1 EP3354426 B1 EP 3354426B1 EP 18152293 A EP18152293 A EP 18152293A EP 3354426 B1 EP3354426 B1 EP 3354426B1
Authority
EP
European Patent Office
Prior art keywords
register mark
corrugated cardboard
cut
web
registration mark
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.)
Active
Application number
EP18152293.9A
Other languages
German (de)
English (en)
Other versions
EP3354426A1 (fr
Inventor
Friedrich Bayer
Christian Mühlbach
Frank HIBINGER
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.)
BHS Corrugated Maschinen und Anlagenbau GmbH
Original Assignee
BHS Corrugated Maschinen und Anlagenbau GmbH
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Publication date
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Publication of EP3354426A1 publication Critical patent/EP3354426A1/fr
Application granted granted Critical
Publication of EP3354426B1 publication Critical patent/EP3354426B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
    • B26D5/32—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier with the record carrier formed by the work itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B26D1/405—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D11/00—Combinations of several similar cutting apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/005—Computer numerical control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/007—Control means comprising cameras, vision or image processing systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2822—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard involving additional operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2831—Control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll

Definitions

  • the invention relates to a corrugated board plant for producing sheets of corrugated board. Furthermore, the invention is directed to a method for producing sheets of corrugated cardboard.
  • Corrugated cardboard systems are generally known from the prior art.
  • a corrugated board manufacturing device with a CCD camera for detecting press marks on a web of corrugated board laminated on one side and an image processing unit that detects a distance between adjacent press marks.
  • a cross-cutting device comprises a CCD camera to detect press marks on a corrugated board web laminated on both sides, and an image processing unit capable of calculating a position of the press marks.
  • the cross-cutting device also has a control unit that is activated when one of the press marks deviates from a cutting position or corrugation tip position of the web of corrugated board laminated on both sides. If a deviation of a cutting position and a corrugation tip is detected, the control unit changes the actuation of the cutting elements.
  • the system includes a rotary cutting device with knife rollers arranged in pairs or a knife roller and a counter roller. Brands cooperate with a sensor and control system to align a printed image and/or markings on an outside after folding and cutting operations. There are sensors that control the cutting device. Detected locations of the marks are compared to optimal locations by the control system. Should an upstream or downstream arrangement of the markers be recognized, cutting elements are displaced upstream or downstream accordingly.
  • the U.S. 3,058,869 discloses a corrugator in which a cutting position is aligned with ends of each printed image. Marks are placed on an outer sheet to indicate the cutting position. The marks are detected and it is ensured that the cutting positions fall between print images. The conveying speed of the web of corrugated board can be changed accordingly for this purpose.
  • a corrugated cardboard sheets are produced by means of a rotary cross-cutting device.
  • a leading end of a sheet of corrugated board is captured by a camera.
  • a positional relationship between a printed mark and a width margin is obtained.
  • the invention is based on the object of creating an improved corrugated board plant.
  • the corrugated board system should be able to produce individual sheets of corrugated board with extreme precision from a web of corrugated board, in particular an endless web. A corresponding procedure is also to be provided.
  • the at least one detected registration mark triggers the registration mark cutting device.
  • the essence of the invention lies in the fact that an automatic or independent position correction of the at least one registration mark section is carried out by means of the registration mark section position correction device, if necessary, which is extremely economical. In particular, the position is corrected while the corrugated board system is running.
  • the at least one registration mark cut has repeatedly been offset in or against the transport direction of the web of corrugated cardboard or sheets of corrugated cardboard, which is avoided according to the invention.
  • the registration mark cutting device directly or immediately implements the position correction of the at least one registration mark cut in or against the transport direction of the web of corrugated board or corrugated board sheets, so that the subsequent registration mark cuts or Corrugated cardboard sheets correspond exactly to a target specification.
  • the corrugated cardboard sheets produced have a length in the transport direction that corresponds exactly to the target specification.
  • the registration mark cutting device can preferably be actuated independently of a fixed cutting length.
  • the at least one registration mark is advantageously arranged at the edge in relation to the web of corrugated cardboard. It is advantageous if the at least one registration mark is printed on the web of corrugated cardboard. It is formed, for example, by at least one bar or a bow tie. Alternatively, the at least one registration mark is formed, for example, by at least one slot, an RFID component or the like. Conveniently, a variety of registration marks is available in the direction of transport Corrugated web or corrugated sheets are spaced from each other.
  • the registration mark detection device advantageously works without contact. It is preferably an optical registration mark detection device.
  • the registration mark cutting device is designed as a cross cutting device. It is expedient if this has at least one rotationally drivable roller with at least one radially running blade.
  • the control arrangement is preferably an electrical or electronic control arrangement.
  • the signal connections are, for example, wireless or wired. They preferably exist at least temporarily. Signals can advantageously be transmitted via the signal connections.
  • the control arrangement has a direct or indirect signal connection to the registration mark cutting device and/or to the registration mark detection device.
  • the register mark cut position correction device is part of the control arrangement. Alternatively, this is part of the registration mark cutting device, for example.
  • the registration mark cutting device advantageously comprises at least two registration mark cutting devices for cutting partial webs of the web of corrugated board. It is advantageous if the registration mark detection device has at least two registration mark detection devices Detecting at least one registration mark on partial webs of the web of corrugated board.
  • the web of corrugated board production arrangement is preferably capable of producing multi-ply, in particular three-ply, five-ply or seven-ply, webs of corrugated board.
  • it favorably comprises at least one device for producing a web of corrugated cardboard laminated on one side.
  • the web of corrugated board preferably has at least one smooth cover web, one smooth liner web and one corrugated web arranged between them.
  • the register mark cut detection arrangement is advantageously designed as an optical register mark cut detection arrangement.
  • Each registration mark cutting device of the registration mark cutting device is preferably followed by at least one registration mark cut detection device of the registration mark cut detection arrangement for detecting the at least one registration mark cut in the respective web of corrugated board.
  • the register mark cut position evaluation device is advantageously part of the control arrangement. It is preferably of an electrical or electronic nature.
  • upstream relates in particular to a transport direction of the web of corrugated board or the sheets of corrugated board.
  • the registration mark cut detection arrangement is designed as a camera arrangement.
  • Other designs are alternatively possible.
  • the register mark cut detection devices assigned to the web of corrugated board according to dependent claim 3 are advantageously arranged opposite one another.
  • the web of corrugated board is preferably passed between them.
  • the image processing unit according to dependent claim 5 advantageously uses a corresponding image processing program.
  • the recorded image of the at least one register mark section is preferably processed there.
  • the register mark cut position correction device is directly or indirectly signal-connected to the register mark cut position evaluation device and the register mark cutting device.
  • a setpoint or a tolerance can be specified for the register mark intersection position correction device.
  • a corrugated board plant as in 1 is illustrated in a simplified manner in its entirety, comprises a web of corrugated board production arrangement 1 for producing an endless web of corrugated board 2 .
  • a first web of material 6 is fed from a first unwinding device 5 to the device 3 for producing the web of corrugated board 4 laminated on one side.
  • a preheating device 18 for preheating the first web of material 6 is located between the first unwinding device 5 and the device 3 for producing the web of corrugated board 4 laminated on one side.
  • the first web of material 6 is brought together in the device 3 for producing the web of corrugated board 4 laminated on one side with a second web of material 7 which is unwound by a second unwinding device 8 .
  • the webs of material 6, 7 are preferably endless.
  • the unwinding devices 5, 8 advantageously have corresponding splicing units (not shown).
  • the second web of material 7 is guided through to produce a corrugation between a first and second corrugating roller 9, 10, which are arranged adjacent to one another and rotate about their axes during corrugation. After this passage, the second web of material 7 is in the form of a corrugated web 11 .
  • Tips of the corrugated web 11 are then glued by a gluing device 12, which is part of the device 3 for producing the corrugated web 4 laminated on one side.
  • the corrugated web 11 provided with glue and the first material web 6 are then formed in the device 3 for producing the single-faced corrugated web 4 in a gap between the first corrugating roller 9, which is arranged above the second corrugating roller 10, and a pressing device 13 the single-faced web of corrugated board 4 is compressed and adhesively bonded to one another.
  • the one-side-laminated corrugated cardboard web 4 formed from the material webs 6, 7 is then fed out of the device 3 for producing the single-sided corrugated cardboard web 4 and guided around a deflection roller 14 to a preheating device 15 of the corrugated cardboard web production arrangement 1.
  • the corrugated cardboard web production arrangement 1 also has a third unwinding device 16 for a third, preferably endless, material web 17.
  • the third material web 17 forms a laminating web for the corrugated cardboard web 4 laminated on one side.
  • the third material web 17 is also fed to the preheating device 15.
  • the preheating device 15 has two heatable heating rollers 19, 20 arranged one above the other.
  • the web of corrugated board 4 laminated on one side and the third web of material 17 run at a distance one above the other in the preheating device 15 and touch the respective heating roller 19 or 20 in some areas on the outside.
  • the corrugated board web production arrangement 1 comprises a gluing unit 21 which is arranged downstream of the preheating device 15 .
  • the gluing unit 21 has a gluing roller 22 which is partially immersed in a glue bath 23 .
  • the corrugated web 4 laminated on one side is located with its corrugated web 11 in contact with the gluing roller 22, so that glue is transferred from the glue bath 23 to the corrugated web 11, in particular to its tips.
  • the corrugated web production arrangement 1 also has a heating and pressing device 24 which is arranged downstream of the gluing unit 21 .
  • the heating presser 24 comprises a horizontal table 25 provided with heating elements (not shown). Above the table 25, the heating presser 24 has an endless press belt 27 guided around rollers 26. Between the press belt 27 and the table 25, a pressure gap 28 is formed, through which the one-sidedly laminated web of corrugated board 4 and the third material web 17 are transported and pressed against one another there.
  • the endless web of corrugated cardboard 2 is formed, which, according to this preferred embodiment, has three layers and is transported continuously in a transport direction 29 .
  • the corrugator Downstream of the heating pressing device 24 with respect to the transport direction 29, the corrugator has a short cross-cutter 30.
  • the short cross-cutter 30 has a knife cylinder 31 and an anvil cylinder 32 arranged below the same.
  • the blade cylinder 31 and the counter-cylinder 32 are rotatably mounted, with their axes of rotation running parallel to one another and perpendicular to the transport direction 29 of the endless web of corrugated board 2 .
  • the blade cylinder 31 has a cylinder jacket on which a blade (not shown) is attached with a cutting edge.
  • the counter-cylinder 32 also has a cylinder jacket on which a counter-knife (not shown) with a cutting edge is attached.
  • a series of counter-body elements are also arranged on the cylinder jacket of the counter-cylinder 32 and can be displaced between two radially projecting stops (not shown) fastened on the cylinder jacket.
  • the short cross cutter 30 is capable of making a cut that extends across the full width of the continuous web 2 of corrugated board.
  • the blade cylinder 31 and the counter-cylinder 32 are rotated in such a way that they or their blades interact with one another during the cutting process.
  • the short cross cutter 30 is capable of making a cut of a specified length and a specified distance from a longitudinal edge of the continuous web of corrugated fiberboard 2 .
  • the counter-body elements are selected or adjusted accordingly.
  • the blade cylinder 31 and the counter-cylinder 32 are rotated in such a way that the blade of the blade cylinder 31 interacts with the counter-body elements.
  • FIG DE 10 2004 003 560 A1 reference is made to FIG DE 10 2004 003 560 A1 referred.
  • the short transverse cutting device 30 can also have a different design or be absent.
  • the corrugated board plant Downstream of the short cross-cutting device 30 with respect to the transport direction 29, the corrugated board plant has a slitting/creating device 33, which comprises two creasing stations 34 arranged one behind the other and two longitudinal cutting stations 35 arranged one behind the other.
  • Each creasing station 34 has two creasing tools 36 arranged one above the other in pairs, between which the endless web of corrugated board 2 is passed.
  • Each slitting station 35 has a rotationally drivable knife 37 which can be brought into engagement with the endless web of corrugated cardboard 2 for severing the same longitudinally.
  • the corrugated board plant Downstream of the slitting/creating device 33 in relation to the transport direction 29, the corrugated board plant comprises a diverter 38, in which an endless, longitudinally cut, first web section 39 and an endless, longitudinally cut, second web section 40 of the endless corrugated board web 2 are separated from one another become.
  • the web sections 39, 40 come from the endless web of corrugated board 2 and form endless partial webs of the endless web of corrugated board 2.
  • the corrugated board system Downstream of the diverter 38 with respect to the transport direction 29, the corrugated board system has a registration mark detection device 41 for detecting registration marks 42 ( Figures 2 to 5 ) on the endless web of corrugated cardboard 2 or the web sections 39, 40.
  • the registration mark detection device 41 has a first upper registration mark detection device 43 and a second lower registration mark detection device 44.
  • the first registration mark detection device 43 is associated with the first track section 39 for detecting registration marks 42 on the same, while the second Registration mark detection device 44 is assigned to the second web section 40 for detecting registration marks 42 on the same.
  • the first registration mark detection device 43 has two opposing first registration mark detection sensors 45 which are arranged adjacent and upstream with respect to the transport direction 29 to a first pair of guide rollers 46 for guiding the first web section 39 .
  • the first web section 39 is led through between the two first registration mark detection sensors 45 .
  • the first registration mark detection sensors 45 detect the upper side 47 and lower side 48 of the first web section 39.
  • the second registration mark detection device 44 is designed in accordance with the first registration mark detection device 43 . It comprises two second registration mark detection sensors 49 which are arranged adjacent and upstream with respect to the transport direction 29 to a second pair of guide rollers 50 for guiding the second web section 40 .
  • the second web section 40 is between the two second registration mark detection sensors 49 passed through.
  • the second registration mark detection sensors 49 detect the upper side 51 and lower side 52 of the second web section 40.
  • a registration mark cutting device 53 is arranged downstream of the registration mark detection device 41 with respect to the transport direction 29 1 again simplified and in 2 is shown in detail.
  • the registration mark cutting device 53 is arranged adjacent to the registration mark detection device 41 . It has a first registration mark cutting device 54 with a first registration mark cutting roller pair 55 for the first web section 39 and a second registration mark cutting device 56 with a second registration mark cutting roller pair 57 for the second web section 40 .
  • Each first roller 58 of the first registration mark cutting roller pair 55 carries a first cutter bar 59 which extends radially outwards and runs perpendicularly to the transport direction 29.
  • the first cutter bars 59 act to cut through the first web section 39 transversely, producing a first registration mark cut 60 ( Figures 3 to 5 ) together.
  • Each second roller 61 of the second register mark cutting roller pair 57 carries a second cutter bar 62 which extends radially outwards and runs perpendicularly to the transport direction 29.
  • the second cutter bars 62 work together to transversely cut through the second web section 40, forming a second register mark cut 63 .
  • Each registration mark cutting roller pair 55, 57 can be driven in rotation by a motor.
  • the motors rotate the rollers 58, 61 of the respective registration mark cutting roller pair 55 or 57 can be driven in rotation about their central axis.
  • first introduction roller pairs 64 Upstream in relation to the transport direction 29 to the first registration mark cutting device 54 are two first introduction roller pairs 64 for the exact introduction of the first web section 39 into the first registration mark cutting device 54 .
  • the first web section 39 is passed through the first infeed roller pairs 64 .
  • Two second pairs of introductory rollers 65 for the exact introduction of the second web section 40 into the second register mark cutting device 56 are arranged upstream in relation to the transport direction 29 to the second register mark cutting device 56 .
  • the second web section 40 is passed through the second infeed roller pairs 65 .
  • Two first pairs of delivery rollers 66 are arranged downstream of the first registration mark cutting device 54 with respect to the transport direction 29 and are used for the exact delivery of the first web section 39.
  • the first web section 39 is guided through the first pairs of delivery rollers 66.
  • Two second pairs of outfeed rollers 67 are arranged downstream of the second registration mark cutter 56 with respect to the transport device 29 and serve to precisely feed out the second web section 40.
  • the second web section 39 is guided through the second pairs of outfeed rollers 67.
  • the first registration mark cut detection device 68 is formed by two opposing first registration mark cut detection cameras 69 between which the first web section 39 is passed in the transport direction 29 .
  • the first registration mark cut detection cameras 69 capture both the upper side 47 and the lower side 48 of the first web section 39.
  • a second registration mark cut detection device 70 for detecting the second registration mark cut 63 in the second web section 40 is arranged between the second pairs of delivery rollers 67 .
  • the second register mark cut detection device 70 is formed by two opposing, second register mark cut detection cameras 71 between which the second web section 40 is passed in the transport direction 29 .
  • the second registration mark cut detection cameras 71 capture the top side 51 and bottom side 52 of the second web section 40.
  • the registration mark cut detection devices 68, 70 form a registration mark cut detection arrangement.
  • the registration mark cutters 54, 56, the registration mark cut detectors 68, 70, the infeed roller pairs 64, 65 and the outfeed roller pairs 66, 67 are conveniently arranged on a common machine frame.
  • a conveyor belt arrangement 72 is arranged downstream of the registration mark cutting device 53 .
  • the conveyor belt arrangement 72 has a first conveyor belt 73 which is guided around first rollers 74 which can be driven in rotation.
  • the first conveyor belt 73 serves to convey first sheets of corrugated board 75 which have been produced from the first web section 39 by means of the first registration mark cutting device 54 .
  • the first sheets of corrugated cardboard 75 are conveyed in a shingled manner to a first tray 76, where they are stacked to form a first stack 77.
  • the conveyor belt arrangement 72 comprises a second conveyor belt 78 which is guided around second rollers 79 which can be driven in rotation.
  • the second conveyor belt 78 serves to convey second sheets of corrugated board 80 which have been produced from the second web section 40 by means of the second registration mark cutting device 56 .
  • the second sheets of corrugated board 80 are conveyed shingled on the second conveyor belt 78 to a second tray 81 where they are stacked to form a second stack 82 .
  • the control of the registration mark cutting device 53 is explained in more detail below.
  • the web sections 39, 40 are each transported in the transport direction 29. In doing so, they pass the first registration mark detection device 43 or the second registration mark detection device 44.
  • Corresponding first registration mark signals of the registration marks 42 detected by the first registration mark detection sensors 45 on the first web section 39 are supplied to a first electronic information processing device 84 via first signal lines 83 .
  • the first information processing device 84 has a signal connection to a first control arrangement 86 via a second signal line 85 .
  • the first control arrangement 86 receives corresponding signals from the first information processing device 84 .
  • the first control arrangement 86 in turn has a signal connection via a third signal line 87 to a first drive motor 88 of the first registration mark cutting device 54 for the corresponding rotary drive of the first registration mark cutting roller pair 55 .
  • the first drive motor 88 thus receives corresponding cutting signals from the first control arrangement 86 for cutting the first web section 39 to form the first corrugated cardboard sheets 75. This cutting process is triggered by the detected registration marks 42.
  • the first register mark cut detection device 68 detects the respective first register mark cut 60 that is generated.
  • the first register mark cut position evaluation device 90 evaluates whether the generated first register mark cut 60 has been correctly executed in relation to the register marks 42 . If so, no correction or change is made by the first registration mark cutting device 54. If no, correction signals are supplied to a first registration mark cutting position correction device 92 via a fifth signal line 91.
  • the first registration mark cutting position correction device 92 is advantageously part of the first control arrangement 86 and ensures a correspondingly corrected activation of the first registration mark cutting device 54.
  • a properly executed registration mark cut 60, 63 is shown.
  • the register mark cut 60, 63 is carried out exactly in relation to the associated register mark 42. In particular, it is not offset in the direction of transport 29 or counter to the direction of transport 29 with respect to the respective registration mark 42 .
  • Faulty registration mark cuts 60, 63 are in 4 , 5 shown. They are offset in or against the transport direction 29, as shown by the register marks 42, which are cut in an offset manner.
  • the control of the second registration mark cutting device 56 is analogous.
  • Corresponding second registration mark signals of the registration marks 42 detected by the second registration mark detection sensors 49 on the second web section 40 are supplied to a second electronic information processing device 94 via sixth signal lines 93 .
  • the second information processing device 94 is in signal connection with a second control arrangement 96 via a seventh signal line 95 .
  • the second control arrangement 96 receives corresponding signals from the second information processing device 94 .
  • the second control arrangement 96 in turn has a signal connection via an eighth signal line 97 to a second drive motor 98 of the second registration mark cutting device 56 for the corresponding rotary drive of the second registration mark cutting roller pair 57 .
  • the second drive motor 98 thus receives corresponding cutting signals from the second control arrangement 96 for cutting the second web section 40 into the second sheets of corrugated cardboard 80. This cutting process is triggered by the detected registration marks 42.
  • the second registration mark cut detection device 70 thereby detects the respective second registration mark cut 63 generated.
  • the second registration mark cut position evaluation device 100 evaluates whether the generated second registration mark section 63 has been correctly executed in relation to the registration marks 42 . If so, no correction or change is made by the second registration mark cutting device 56. If no, correction signals are fed to a second registration mark cutting position correction device 102 via a tenth signal line 101.
  • the second registration mark cutting position correction device 102 is advantageously part of the second control arrangement 96 and ensures a correspondingly corrected activation of the second registration mark cutting device 56.
  • Erroneous registration mark cuts 60, 63 are in 4 , 5 shown. They are offset in or against the direction of transport 29 .
  • the registration mark cutting position correction is explained again in more detail using the first registration mark cutting device 54 .
  • the correction takes place analogously by means of the second registration mark cutting device 56 .
  • a first step 103 the first conveyed corrugated cardboard sheets 75 are recorded by means of the first registration mark cut detection cameras 69. Adjacent corrugated sheets 75 are conveniently spaced from each other.
  • a second step 104 the images recorded by the first registration mark intersection detection cameras 69 are transmitted to the first registration mark intersection position evaluation device 90 via the fourth signal lines 89 .
  • the cutting edges 106, 107 produced by the first registration mark cutting device 54 are detected in an image processing unit of the registration mark cutting position evaluation device 90 on adjacent first sheets of corrugated cardboard 75.
  • the cutting edges 106, 107 are adjacent and parallel to each other.
  • step 108 the associated register mark 42 for the register mark section 60 is detected in the first register mark section position evaluation device 90 .
  • Step 108 can occur before or after step 105.
  • the distance between the cutting edges 106, 107 and the associated register mark 42 in the transport direction 29 or counter to it is determined in the first registration mark cut position evaluation device 90.
  • a distance measuring unit of the registration mark cut position evaluation device 90 is used for this purpose.
  • next step 110 corresponding distance signals are transmitted to the first control arrangement 86 via the fifth signal line 91 .
  • the next step 111 there is a comparison of the distance between the cutting edges 106, 107 and the associated register mark 42 with a tolerable register mark offset from order data.
  • the first control arrangement has a corresponding distance comparison unit.
  • a registration mark intersection position correction is calculated in the first control arrangement 86, if required.
  • a corresponding calculation unit is available for this.
  • the first registration mark cut position correction device 92 is used, if necessary, to correct or shift the first registration mark cut 60 by changing the control of the first registration mark cutting device 54.
  • the correction of the second registration mark cutting device 56 is carried out analogously.
  • the specified signal connections or signal lines can be wireless or wired.
  • Figures 6 to 8 show alternative versions of usable registration marks 42.
  • this registration mark 42 is formed by exactly one bar running perpendicularly to the transport direction 29 .
  • each registration mark 42 is formed by two bars which run parallel to one another. They are arranged at a distance from one another in the transport direction 29 and run perpendicularly to the adjacent longitudinal edge.

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Claims (11)

  1. Installation de carton ondulé, comprenant
    a) un ensemble de production de bande de carton ondulé (1) pour produire une bande de carton ondulé (2, 39, 40),
    b) un dispositif de découpe de marques de repérage (53) disposé en aval de l'ensemble de production de bande de carton ondulé (1) pour découper la bande de carton ondulé (2, 39, 40) en feuilles de carton ondulé (75, 80),
    c) un dispositif de détection de marques de repérage (41) placé en amont du dispositif de découpe de marques de repérage (53), pour détecter au moins une marque de repérage (42) sur la bande de carton ondulé (2, 39, 40),
    d) un ensemble de commande (86, 96) qui
    i. est en liaison de signalisation avec le dispositif de découpe de marques de repérage (53),
    ii. est en liaison de signalisation avec le dispositif de détection de marques de repérage (41), et
    iii. en fonction de ladite au moins une marque de repérage (42) détectée, commande le dispositif de découpe de marques de repérage (53) pour couper la bande de carton ondulé (2, 39, 40) en les feuilles de carton ondulé (75, 80) en produisant au moins une coupe de marques de repérage (60, 63), et
    e) un moyen de correction de position de découpe de marques de repérage (92, 102) pour corriger automatiquement la position de ladite au moins une coupe de marques de repérage (60, 63) par rapport à ladite au moins une marque de repérage (42) en cas d'écart de position non souhaité de ladite au moins une coupe de marques de repérage (60, 63),
    caractérisée par
    f) un ensemble de détection de coupe de marques de repérage (68, 70) disposé en aval du dispositif de découpe de marques de repérage (53) pour détecter ladite au moins une coupe de marques de repérage (60, 63), et
    g) un moyen d'évaluation de position de coupe de marques de repérage (90, 100) pour l'évaluation de position de ladite au moins une coupe de marques de repérage (60, 63) par rapport à ladite moins une marque de repérage (42) associée.
  2. Installation de carton ondulé selon la revendication 1, caractérisée en ce que l'ensemble de détection de coupe de marques de repérage (68, 70) est conçu comme un dispositif de caméra.
  3. Installation de carton ondulé selon la revendication 1 ou 2, caractérisée en ce que l'ensemble de détection de coupe de marques de repérage (68, 70) comprend un moyen de détection de coupe de marques de repérage (68, 70) tourné vers une face supérieure (47, 51) des feuilles de carton ondulé (75, 80) pour détecter la face supérieure (47, 51) des feuilles de carton ondulé (75, 80) et un autre moyen de détection de coupe de marques de repérage (68, 70) tourné vers une face inférieure (48, 52) des feuilles de carton ondulé (75, 80) pour détecter la face inférieure (48, 52) des feuilles de carton ondulé (75, 80).
  4. Installation de carton ondulé selon l'une quelconque des revendications précédentes, caractérisée en ce que l'ensemble de détection de coupe de marques de repérage (68, 70) est disposé en amont d'un dépôt (76, 81) pour déposer les feuilles de carton ondulé (75, 80) en piles (77, 82).
  5. Installation de carton ondulé selon l'une quelconque des revendications précédentes, caractérisée en ce que le moyen d'évaluation de position de coupe de marques de repérage (90, 100) comprend une unité de traitement d'images.
  6. Installation de carton ondulé selon l'une quelconque des revendications précédentes, caractérisée en ce que le moyen d'évaluation de position de coupe de marques de repérage (90, 100) comprend une unité de mesure de distance pour mesurer au moins une distance entre au moins un bord de coupe de marques de repérage (96, 97) sur ladite au moins une feuille de carton ondulé (75, 80) produite et ladite au moins une marque de repérage (42) associée.
  7. Installation de carton ondulé selon l'une quelconque des revendications précédentes, caractérisée en ce que le moyen de correction de position de coupe de marques de repérage (92, 102) est en liaison de signalisation avec le moyen d'évaluation de position de coupe de marques de repérage (90, 100) et le dispositif de découpe de marques de repérage (53).
  8. Installation de carton ondulé selon l'une quelconque des revendications précédentes, caractérisée par une unité de paramètre prédéfini d'intervalle de valeur de consigne pour la correction de position d'au moins une coupe de marques de repérage (60, 63) en cas d'écart par rapport à un intervalle de valeur de consigne.
  9. Installation de carton ondulé selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de découpe de marques de repérage (53) convertit la correction de position d'au moins une coupe de marques de repérage (60, 63) dans une direction de transport (29) de la bande de carton ondulé (2, 39, 40) ou des feuilles de carton ondulé (75, 80) ou dans le sens opposé à cette direction, de telle sorte que les coupes de marques de repérage (60, 63) suivantes correspondent à une consigne.
  10. Installation de carton ondulé selon l'une quelconque des revendications précédentes, caractérisée en ce que le moyen d'évaluation de position de coupe de marques de repérage (90) présente une unité de mesure de distance pour déterminer une distance de ladite au moins une coupe de marques de repérage (60, 63) par rapport à la marque de repérage (42) correspondante dans la direction de transport (29) ou dans le sens opposé à celle-ci.
  11. Procédé de fabrication de feuilles de carton ondulé (75, 80) comprenant
    - fabrication d'une bande de carton ondulé (2, 39, 40) au moyen d'un ensemble de production de bande de carton ondulé (1),
    - découpage de la bande de carton ondulé (2, 39, 40) en feuilles de carton ondulé (75, 80) par un dispositif de découpe de marques de repérage (53) disposé en aval de l'ensemble de production de bande de carton ondulé (1),
    - détection de l'au moins une marque de repérage (42) sur la bande de carton ondulé (2, 39, 40) au moyen d'un dispositif de détection de marques de repérage (41) qui est disposé en amont du dispositif de découpe de marques de repérage (53),
    - actionnement du dispositif de découpe de marques de repérage (53) pour couper la bande de carton ondulé (2, 39, 40) en les feuilles de carton ondulé (75, 80) au moyen d'un ensemble de commande (86, 96) en fonction de l'au moins une marque de repérage (42) détectée en produisant au moins une coupe de marques de repérage (60, 63), l'ensemble de commande (86, 96) étant en liaison de signalisation avec le dispositif de découpe de marques de repérage (53) et le dispositif de détection de marques de repérage (41),
    - correction automatique de la position de ladite au moins une coupe de marques de repérage (60, 63) par rapport à ladite au moins une marque de repérage (42) en cas d'écart de position non souhaité de ladite au moins une coupe de marques de repérage (60, 63) par le biais d'un moyen de correction de position de coupe de marques de repérage (92, 102),
    - détection de ladite au moins une coupe de marques de repérage (60, 63) au moyen d'un ensemble de détection de coupe de marques de repérage (68, 70) disposé en aval du dispositif de découpe de marques de repérage (53), et
    - évaluation de position de ladite au moins une coupe de marques de repérage (60, 63) par rapport à ladite moins une marque de repérage (42) associée par le biais d'un moyen d'évaluation de position de coupe de marques de repérage (90, 100).
EP18152293.9A 2017-01-27 2018-01-18 Correction de position pour les marques de repérage en coupant carton ondulé Active EP3354426B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017201371.0A DE102017201371A1 (de) 2017-01-27 2017-01-27 Wellpappe-Anlage

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EP3354426B1 true EP3354426B1 (fr) 2023-03-22

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US (1) US10576650B2 (fr)
EP (1) EP3354426B1 (fr)
CN (1) CN108357153B (fr)
DE (1) DE102017201371A1 (fr)
ES (1) ES2947035T3 (fr)

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Publication number Publication date
CN108357153A (zh) 2018-08-03
US10576650B2 (en) 2020-03-03
ES2947035T3 (es) 2023-07-31
DE102017201371A1 (de) 2018-08-02
CN108357153B (zh) 2021-06-04
US20180215061A1 (en) 2018-08-02
EP3354426A1 (fr) 2018-08-01

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