EP0371954A1 - Spreading device for lateral folds - Google Patents

Spreading device for lateral folds Download PDF

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Publication number
EP0371954A1
EP0371954A1 EP89890280A EP89890280A EP0371954A1 EP 0371954 A1 EP0371954 A1 EP 0371954A1 EP 89890280 A EP89890280 A EP 89890280A EP 89890280 A EP89890280 A EP 89890280A EP 0371954 A1 EP0371954 A1 EP 0371954A1
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EP
European Patent Office
Prior art keywords
fingers
bag
pair
sack
engaging
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Granted
Application number
EP89890280A
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German (de)
French (fr)
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EP0371954B1 (en
Inventor
Adolf Gradwohl
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Binder and Co AG
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Binder and Co AG
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Publication of EP0371954A1 publication Critical patent/EP0371954A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B65B7/06—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap

Definitions

  • the invention relates to a device for stripping and compressing the free excess over the full goods of filled bags with inwardly folded side walls, in which two in the plane of the bag opening or a plane parallel to this, and in a plane perpendicular to this Pairs of fingers engaging in the opened sack, the fingers of each pair being spaced apart in the transverse direction of the sack opening and two oppositely movable rods or swords being provided, which extend from the outside of the sack between the fingers of each pair of those in the sack , fingers that can be inserted on both sides of a closable filling funnel of a bag filling device.
  • the fingers of each pair of fingers in the transverse direction of the bag opening or in the direction of the side walls of the bag can only have a relatively small distance from one another in order to ensure a correspondingly strong formation of the folds of the side walls in the projection of the bag.
  • this can result in a fold in the area of the transition to the folded side walls of the sack, in particular in the case of wider sacks, not being properly stiffened and in the subsequent pressing together of the front and back of the sack protrusion, which leads to the formation of pinch folds which conclude when closing the sack, especially if this is done by sewing or welding, can cause considerable problems.
  • the aim of the invention is to avoid these disadvantages and to propose a device of the type mentioned at the outset in which a reliable stripping of the sack protrusion is ensured.
  • the fingers engaging in the sack are formed from thin plates or sheets which may be cut into triangles.
  • each finger engaging in a bag can be rotated through an angle of 180 °, preferably through an angle of 270 °, the fingers of a pair being parallel to one another and the minimum distance from one another in the end position exhibit.
  • each pair of fingers to be moved so that as the discs holding them rotate, First increase their mutual distance in the transverse direction of the sack opening and thereby unclamp the sack and then assume an end position in which the fingers of each pair of fingers have a distance which is sufficient to be able to insert the swords comfortably between the fingers, with the side walls in Wrinkles are placed and the front and back of the sack are closely approximated.
  • This also makes it possible to grasp the free end of the sack protrusion with corresponding clamping devices, after which the sack can be closed by sewing or welding.
  • the disks carrying the fingers of a pair are connected in a rotationally fixed manner to gearwheels which mesh with one another and one of which is connected to a drive.
  • a cylinder-piston arrangement which can be acted upon by a pressure medium is provided for driving the disks holding the fingers, or the gearwheels connected to them in a rotationally fixed manner.
  • a closable filling funnel 2 with clamping devices 3 together with the bag spreaders 4 is held in a known manner.
  • a carriage 6 is slidably held, on which two swords 7 are pivotally held, which can be moved via cylinder-piston devices 8.
  • 6 drives, which are formed by cylinder-piston devices 12, are arranged on this carriage, which serve to actuate fingers 9, 9 'which can be inserted into the bag opening.
  • These fingers 9, 9 ' are made of a relatively thin plate and essentially triangular. With one end, these fingers 9 are attached to the outer surface of a rotatably held disc 10, which has a flattening 10 'in the region of the connection with the finger.
  • Each disc 10 is rotatably connected to a gear 11, the gears 11 of a pair of fingers 9 meshing with each other.
  • a sack feed device 13 is also held on the frame 1, which enables the empty sacks to be fed from a laterally lying stack to the closable full hopper 2.
  • Essential to the invention are the two swords 7 and the two pairs of fingers 9, 9 ', which engage in the lower position of the carriage 6 in the open bag 15 in the region of the excess of the bag located above the contents in this.
  • the fingers 9, 9' and the swords 7 assume the position shown in FIG. 3, the bag 15 still being closed by the lockable hopper 2 and the clamping device associated therewith 3 is held.
  • the clamping between the closable hopper 2 and the clamping device 3 is released and the filled bag falls on the pad, not shown.
  • the two pairs of fingers 9 are rotated in opposite directions by the cylinder-piston arrangements 12, the closure of the closable filling funnel 2 being initiated.
  • the fingers 9, 9 ' are rotated in the direction of the front or rear wall of the bag 15 and come into contact with them, whereby any folds in the walls of the bag are stripped.
  • the two swords 7 are moved towards each other and begin to press in the folds of the side walls of the sack, as shown in FIG. 4, which shows an intermediate position of the fingers 9, 9 'and the swords 7.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Making Paper Articles (AREA)
  • Soil Working Implements (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

Device for spreading out and pressing together the free excess length above the filling material of filled bags with lateral walls which are folded inwards, in which there are provided two pairs of fingers which engage in the opened bag and which are movable in the plane of the bag opening or in a plane parallel to the latter as well as in a plane perpendicular to the latter, the fingers of each pair being at a distance from one another in the transverse direction of the bag opening, and two rods or blades which are movable in opposite directions to one another and which, from the outside of the bag, can be inserted between the fingers of each pair of the fingers which engage in the bag, possibly on both sides of a closable filling funnel of a bag-filling device. In order to ensure a perfect spreading out of any folds in the excess length of the bag, it is envisaged that the fingers (9, 9') of each pair of fingers (9, 9') engaging in the bag (15) are arranged eccentrically on discs (10) which are rotatable in opposite directions. …<IMAGE>…

Description

Die Erfindung bezieht sich auf eine Einrichtung zum Ausstrei­fen und Zusammendrücken des freien Überstandes über dem Full­gut von befüllten Säcken mit nach innen gefalteten Seitenwän­den, bei der zwei in der Ebene der Sacköffnung bzw. einer zu dieser parallelen Ebene, sowie in einer zu dieser senkrechten Ebene bewegbare Paare von in den geöffneten Sack eingreifender Finger, wobei die Finger eines jeden Paares in Querrichtung der Sacköffnung voneinander beabstandet sind und zwei gegen­läufig zueinander bewegbare Stäbe oder Schwerter vorgesehen sind, die von der Außenseite des Sackes her zwischen die Fin­ger eines jeden Paares der in den Sack, gegebenenfalls zu bei­den Seiten eines verschließbaren Fülltrichters einer Sackfülleinrichtung eingreifenden Finger einschiebbar sind.The invention relates to a device for stripping and compressing the free excess over the full goods of filled bags with inwardly folded side walls, in which two in the plane of the bag opening or a plane parallel to this, and in a plane perpendicular to this Pairs of fingers engaging in the opened sack, the fingers of each pair being spaced apart in the transverse direction of the sack opening and two oppositely movable rods or swords being provided, which extend from the outside of the sack between the fingers of each pair of those in the sack , fingers that can be inserted on both sides of a closable filling funnel of a bag filling device.

Bei bekannten derartigen Einrichtungen werden die Finger eines jeden Paares von Fingern nach dem Einführen in die Sacköffnung gemeinsam gegen die Seitenwand des Sackes zu bewegt, wobei die beiden Paare von Fingern gegenläufgig bewegt werden. Dabei kommt es zu einem Ausspannen des Überstandes des befüllten Sackes, wonach dann die Schwerter zwischen die Finger einge­schoben werden und dadurch die nach innen gerichtete Falte in beiden Seitenwänden des Sackes hergestellt wird.In known devices of this type, the fingers of each pair of fingers are moved together against the side wall of the sack after insertion into the sack opening, the two pairs of fingers being moved in opposite directions. This causes the protrusion of the filled sack to be stretched out, after which the swords are then inserted between the fingers, thereby producing the inward fold in both side walls of the sack.

Dabei ergibt sich jedoch der Nachteil, daß die Finger eines jeden Paares von Fingern in Querrrichtung der Sacköffnung bzw. in Richtung der Seitenwände des Sackes nur einen relativ ge­ringen Abstand voneinander haben können um eine entsprechend starke Ausbildung der Falten der Seitenwände im überstand des Sackes sicherzustellen. Dadurch kann es aber vorkommen, daß eine Falte im Bereich des Überganges zu den gefalteten Seiten­wändes des Sackes, insbesondere bei breiteren Säcken, nicht ordnungsgemäß ausgesteift wird und es beim anschließenden Zu­sammenpressen der Vorder- und Rückseite des Sacküberstandes zur Ausbildung von Quetschfalten kommt, die beim abschließen­ den Verschließen des Sackes, insbesondere wenn dies durch Ver­nähen oder Verschweißen erfolgt, erhebliche Probleme mit sich bringen.However, there is the disadvantage that the fingers of each pair of fingers in the transverse direction of the bag opening or in the direction of the side walls of the bag can only have a relatively small distance from one another in order to ensure a correspondingly strong formation of the folds of the side walls in the projection of the bag. However, this can result in a fold in the area of the transition to the folded side walls of the sack, in particular in the case of wider sacks, not being properly stiffened and in the subsequent pressing together of the front and back of the sack protrusion, which leads to the formation of pinch folds which conclude when closing the sack, especially if this is done by sewing or welding, can cause considerable problems.

Ziel der Erfindung ist es diese Nachteile zu vermeiden und eine Einrichtung der eingangs erwähnten Art vorzuschlagen, bei der ein sicheres Ausstreifen des Sacküberstandes gewährleistet ist.The aim of the invention is to avoid these disadvantages and to propose a device of the type mentioned at the outset in which a reliable stripping of the sack protrusion is ensured.

Erfindungsgemäß wird dies dadurch erreicht, daß die Finger eines jeden Paares von in den Sack eingreifenden Fingern ex­zentrisch an gegenläufig verdrehbaren Scheiben angeordnet sind.According to the invention this is achieved in that the fingers of each pair of fingers engaging in the bag are arranged eccentrically on disks which can be rotated in opposite directions.

Durch diese Maßnahmen ist es möglich die Finger im Bereich der Ecken der Sacköffnug in diese eingreifen zu lassen und durch entsprechendes Verdrehen der Finger den Sack im gesamten Eck­bereich der Sacköffnung auszustreifen, sodaß sämtliche Falten sicher geglättet werden.These measures make it possible for the fingers to engage in the corners of the sack opening and to strip out the sack in the entire corner area of the sack opening by turning the fingers accordingly, so that all folds are smoothed reliably.

Nach einem weiteren Merkmal der Erfindung kann vorgesehen sein, daß die in den Sack eingreifenden Finger aus gege­benenfalls dreieckig zugeschnittenen dünnen Platten oder Blechen gebildet sind.According to a further feature of the invention, it can be provided that the fingers engaging in the sack are formed from thin plates or sheets which may be cut into triangles.

Dies ermöglicht es, in Verbindung mit der Verdrehung der Fin­ger, die Vorder- und Rückseite des zu verschließenden Sackes allein schon durch die Bewegung der Finger einander sehr stark anzunähern und in eine für das endgültige Verschließen sehr günstige Lage zu bringen, wobei während der Herstellung der Falten in den Querwänden eine exakte Führung der Wände des Sackes durch die Finger gegeben ist.This makes it possible, in connection with the twisting of the fingers, to bring the front and back of the sack to be closed very close to one another simply by the movement of the fingers and to bring them into a position which is very favorable for the final closing, while the Folding in the transverse walls gives an exact guidance of the walls of the sack by the fingers.

Bei einer bevorzugten Ausführungsform der Erfindung kann vor­gesehen sein, daß jeder in einen Sack eingreifender Finger um einen Winkel von 180°, vorzugsweise um einen Winkel von 270° drehbar ist, wobei in der Endstellung die Finger eines Paares zueinander parallel stehen und den minimalen Abstand voneinan­der aufweisen.In a preferred embodiment of the invention it can be provided that each finger engaging in a bag can be rotated through an angle of 180 °, preferably through an angle of 270 °, the fingers of a pair being parallel to one another and the minimum distance from one another in the end position exhibit.

Dies ermöglicht es die Finger eines jeden Paares so zu bewe­gen, daß diese im Zuge der Drehung der sie haltenden Scheiben, zuerst ihren gegenseitigen Abstand in Querrichtung der Sack­öffnung vergrößern und dadurch den Sack ausspannen und an­schließend eine Endstellung einnehmen, in der die Finger eines jeden Paares von Fingern einen Abstand einehmen, der ausreicht um die Schwerter bequem zwischen die Finger einschieben zu können, wobei die Seitenwände in Falten gelegt werden und die Vorder- und Rückseite des Sackes einander stark angenähert werden. Dies ermöglicht es auch das freie Ende des Sacküber­standes mit einsprechenden Klemmeinrichtungen zu erfassen wo­nach der Sack durch Vernähen oder Verschweißen verschlossen werden kann.This allows each pair of fingers to be moved so that as the discs holding them rotate, First increase their mutual distance in the transverse direction of the sack opening and thereby unclamp the sack and then assume an end position in which the fingers of each pair of fingers have a distance which is sufficient to be able to insert the swords comfortably between the fingers, with the side walls in Wrinkles are placed and the front and back of the sack are closely approximated. This also makes it possible to grasp the free end of the sack protrusion with corresponding clamping devices, after which the sack can be closed by sewing or welding.

Weiters kann vorgesehen sein, daß die die Finger eines Paares tragenden Scheiben drehfest mit Zahnrädern verbunden sind, die miteinander kämmen und von denen eines mit einem Antrieb ver­bunden ist.Furthermore, it can be provided that the disks carrying the fingers of a pair are connected in a rotationally fixed manner to gearwheels which mesh with one another and one of which is connected to a drive.

Damit wird auf einfache Weise eine schlupffreie Mitnahme der Finger in einander entgegengesetzten Drehrichtungen sicherge­stellt, wodurch auch ein sehr exakter Ablauf der Herstellung der Seitenfalten in den Querwänden des Überstandes eines be­füllten Sackes und optimale Vorbereitung desselben zum endgül­tigen Verschließen gewahrleistet ist.This ensures a slip-free entrainment of the fingers in opposite directions of rotation, which also ensures a very precise production of the side gussets in the transverse walls of the overhang of a filled sack and optimal preparation of the same for final closure.

Bei einer besonders bevorzugten Ausführungsform der Erfindung ist vorgesehen, daß für den Antrieb der die Finger haltenden Scheiben, bzw. der mit diesen drehfest verbundenen Zahnräder eine mit einem Druckmedium beaufschlagbare Zylinder-Kolbenan­ordnung vorgesehen ist.In a particularly preferred embodiment of the invention, it is provided that a cylinder-piston arrangement which can be acted upon by a pressure medium is provided for driving the disks holding the fingers, or the gearwheels connected to them in a rotationally fixed manner.

Auf diese Weise kann die Beschleunigung der Finger sehr ein­fach an die jeweiligen Gegebenheiten angepaßt und damit eine entsprechende Schonung des Sackes erreicht werden.In this way, the acceleration of the fingers can be very easily adapted to the particular circumstances and the bag is protected accordingly.

Die Erfindung wird nun anhand der Zeichnung näher erläutert. Dabei zeigen:

  • Fig. 1 und 2 eine Sackfülleinrichtung mit einer er­findungsgemäßen Einrichtung, die in der linken Hälfte der Fig. 1 in Ruhe- und in der rechten Hälfte in einer in einen Sack eingreifenden Arbeitsstellung dargestellt ist, und
  • Fig. 3 bis 5 schematisch die erfindungsgemäße Einrichtung in verschiedenen Phasen des Bewegungsablaufes in Drauf­sicht.
The invention will now be explained in more detail with reference to the drawing. Show:
  • 1 and 2 a bag filling device with a device according to the invention, which in the left half of the Fig. 1 is shown in the rest and in the right half in a working position engaging in a bag, and
  • Fig. 3 to 5 schematically, the device according to the invention in different phases of the movement in plan view.

In dem Gestell 1 der Sackfülleinrichtung ist in bekannter Weise ein verschließbarer Fülltrichter 2 mit Klemmeinrichtun­gen 3 samt den Sackspreizern 4 gehalten. Auf den Säulen 5 des Gestelles 1 ist ein Schlitten 6 verschiebbar gehalten, auf dem zwei Schwerter 7 schwenkbar gehalten sind, die über Zylinder-­Kolbeneinrichtungen 8 bewegbar sind. Weiters sind an diesem Schlitten 6 Antriebe, die durch Zylinder-Kolbeneinrichtun­gen 12 gebildet sind, angeordnet, die zur Betätigung von in die Sacköffnung einführbaren Fingern 9, 9′ dienen.In the frame 1 of the bag filling device, a closable filling funnel 2 with clamping devices 3 together with the bag spreaders 4 is held in a known manner. On the columns 5 of the frame 1, a carriage 6 is slidably held, on which two swords 7 are pivotally held, which can be moved via cylinder-piston devices 8. Furthermore, 6 drives, which are formed by cylinder-piston devices 12, are arranged on this carriage, which serve to actuate fingers 9, 9 'which can be inserted into the bag opening.

Diese Finger 9, 9′ sind aus einer relativ dünnen Platte herge­stellt und im wesentlichen dreieckig ausgebildet. Mit ihrem einen Ende sind diese Finger 9 an der Mantelfläche einer dreh­bar gehaltenen Scheibe 10 befestigt, wobei diese im Bereich der Verbindung mit dem Finger eine Abflachung 10′ aufweist.These fingers 9, 9 'are made of a relatively thin plate and essentially triangular. With one end, these fingers 9 are attached to the outer surface of a rotatably held disc 10, which has a flattening 10 'in the region of the connection with the finger.

Jede Scheibe 10 ist drehfest mit einem Zahnrad 11 verbunden, wobei die Zahnräder 11 eines Paares von Fingern 9 miteinander kämmen. Eines dieser Zahnräder 11 eines Paares von Fingern 9, 9′ kämmt mit einem Zahnsegment 14, an dem eine Zylinder-­Kolbenanordnung 12 exzentrisch angreift, die an dem Schlitten 6 abgestützt ist.Each disc 10 is rotatably connected to a gear 11, the gears 11 of a pair of fingers 9 meshing with each other. One of these gears 11 of a pair of fingers 9, 9 'meshes with a toothed segment 14 on which a cylinder-piston arrangement 12 engages eccentrically, which is supported on the carriage 6.

Weiters ist an dem Gestell 1 noch eine Sack-Zuführ­einrichtung 13 gehalten, die eine Zuführung der leeren Säcke von einem seitlich liegenden Stapel zum verschließbaren Full­trichter 2 ermöglicht.Furthermore, a sack feed device 13 is also held on the frame 1, which enables the empty sacks to be fed from a laterally lying stack to the closable full hopper 2.

Wesentlich für die Erfindung sind die beiden Schwerter 7 und die beiden Paare von Fingern 9, 9′, die in der unteren Stel­lung des Schlittens 6 in den geöffneten Sack 15 im Bereich des über dem Füllgut gelegenen Überstandes des Sackes in diesen eingreifen.Essential to the invention are the two swords 7 and the two pairs of fingers 9, 9 ', which engage in the lower position of the carriage 6 in the open bag 15 in the region of the excess of the bag located above the contents in this.

Nach dem Einführen der Paare von Fingern 9, 9′ in die Sacköff­nung nehmen die Finger 9, 9′ und die Schwerter 7 die in der Fig. 3 gezeigte Stellung ein, wobei der Sack 15 noch von dem verchließbaren Fülltrichter 2 und der dieser zugeordneten Klemmeinrichtung 3 gehalten ist. Nach dem Einführen der Fin­ger 9, 9′ in den Sack 15 wird die Klemmung zwischen dem ver­schließbaren Fülltrichter 2 und der Klemmeinrichtung 3 gelöst und der gefüllte Sack fällt auf die nicht dargestellte Unter­lage. Gleichzeitig werden die beiden Paare von Fingern 9 durch die Zylinder-Kolbenanordnungen 12 in gegenläufigen Richtungen verdreht, wobei die Schließung des verschließbaren Fülltrich­ters 2 eingeleitet wird.After the insertion of the pairs of fingers 9, 9 'into the bag opening, the fingers 9, 9' and the swords 7 assume the position shown in FIG. 3, the bag 15 still being closed by the lockable hopper 2 and the clamping device associated therewith 3 is held. After insertion of the fingers 9, 9 'in the bag 15, the clamping between the closable hopper 2 and the clamping device 3 is released and the filled bag falls on the pad, not shown. At the same time, the two pairs of fingers 9 are rotated in opposite directions by the cylinder-piston arrangements 12, the closure of the closable filling funnel 2 being initiated.

Dabei werden die Finger 9, 9′ in Richtung zur Vorder- bzw. Rückwand des Sackes 15 gedreht und kommen mit diesen in Kon­takt, wodurch allfällige Falten in den Wänden des Sackes aus­gestreift werden. Gleichzeitig werden auch die beiden Schwerter 7 gegeneinander bewegt und beginnen die die Falten der Seitenwände des Sackes einzudrücken, wie dies in der Fig. 4 dargestellt ist, die eine Zwischenstellung der Fin­ger 9, 9′ und der Schwerter 7 zeigt.The fingers 9, 9 'are rotated in the direction of the front or rear wall of the bag 15 and come into contact with them, whereby any folds in the walls of the bag are stripped. At the same time, the two swords 7 are moved towards each other and begin to press in the folds of the side walls of the sack, as shown in FIG. 4, which shows an intermediate position of the fingers 9, 9 'and the swords 7.

Während des Weiterdrehens der Finger 9, 9′ streifen diese an den Seitenwänden entlang, wobei die Schwerter 7 weiter gegen­einander bewegt werden und die Falten der Seitenwände weiter eindrücken. In der aus der Fig. 5 ersichtlichen Stellung sind die beiden Finger 9, 9′ eines jeden Paares parallel zueinander ausgerichtet und weisen den minimalen Abstand voneinander auf, wobei die Schwerter 7 zwischen die Finger 9, 9′ eines jeden Paares eingreifen.While turning the fingers 9, 9 'graze them along the side walls, the swords 7 are moved further against each other and press the folds of the side walls further. In the position shown in FIG. 5, the two fingers 9, 9 'of each pair are aligned parallel to one another and have the minimum distance from one another, the swords 7 engaging between the fingers 9, 9' of each pair.

Nach Erreichen der Endstellung der Finger 9, 9′ und Schwerter 7 wird der Schlitten 6 wieder hochgefahren und die Schwerter und Finger in der Ausgangslage zurückgestellt.After reaching the end position of the fingers 9, 9 'and swords 7, the carriage 6 is raised again and the swords and fingers are reset in the starting position.

Claims (5)

1. Einrichtung zum Ausstreifen und Zusammendrücken des freien überstandes über dem Füllgut von befüllten Säcken mit nach innen gefalteten Seitenwänden, bei der zwei in der Ebene der Sacköffnung bzw. einer zu dieser parallelen Ebene, so­wie in einer zu dieser senkrechten Ebene bewegbare Paare von in den geöffneten Sack eingreifender Finger, wobei die Finger eines jeden Paares in Querrichtung der Sacköffnung voneinander beabstandet sind und zwei gegenläufig zuein­ander bewegbare Stäbe oder Schwerter vorgesehen sind, die von der Außenseite des Sackes her zwischen die Finger eines jeden Paares der in den Sack, gegebenenfalls zu bei­den Seiten eines verschließbaren Fülltrichters einer Sack­fülleinrichtung eingreifenden Finger einschiebbar sind, dadurch gekennzeichnet, daß die Finger (9, 9′) eines jeden Paares von in den Sack (15) eingreifenden Fingern (9, 9′) exzentrisch an gegenläufig verdrehbaren Scheiben (10) an­geordnet sind.1. Device for stripping out and compressing the free excess over the contents of filled sacks with inwardly folded side walls, in which two in the plane of the sack opening or a plane parallel to this, as well as in a pair movable in this plane perpendicular to the opened sack engaging fingers, the fingers of each pair being spaced apart in the transverse direction of the sack opening and two oppositely movable rods or swords are provided, which from the outside of the sack between the fingers of each pair of those in the sack, optionally to both Sides of a closable filling funnel of a bag-engaging fingers can be inserted, characterized in that the fingers (9, 9 ') of each pair of fingers (9, 9') engaging in the bag (15) are arranged eccentrically on counter-rotating disks (10) are. 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die in den Sack (15) eingreifenden Finger (9, 9′) aus ge­gebenenfalls dreieckig zugeschnittenen dünnen Platten oder Blechen gebildet sind.2. Device according to claim 1, characterized in that the fingers (9, 9 ') engaging in the bag (15) are formed from possibly triangular cut thin plates or sheets. 3. Einrichtung nach Anspruch 1 oder 2, dadurch gekennzeich­net, daß jeder in einen Sack (15) eingreifender Finger (9, 9′) um einen Winkel von 180°, vorzugsweise um einen Winkel von 270° drehbar ist, wobei in der Endstellung die Fin­ger (9, 9′) eines Paares zueinander parallel stehen und den minimalen Abstand voneinander aufweisen.3. Device according to claim 1 or 2, characterized in that each in a bag (15) engaging fingers (9, 9 ') is rotatable through an angle of 180 °, preferably through an angle of 270 °, the in the end position Fingers (9, 9 ') of a pair are parallel to each other and have the minimum distance from each other. 4. Einrichtung nach einem der Ansprüche 1 bis 3, dadurch ge­kennzeichnet, daß die die Finger (9, 9′) eines Paares tra­genden Scheiben (10) drehfest mit Zahnrädern (11) verbun­den sind, die miteinander kämmen und von denen eines mit einem Antrieb (12, 14) verbunden ist.4. Device according to one of claims 1 to 3, characterized in that the fingers (9, 9 ') of a pair of disks (10) are rotatably connected to gears (11) which mesh with one another and one of which has a drive (12, 14) is connected. 5. Einrichtung nach einem der Ansprüche 1 bis 4, dadurch ge­kennzeichnet, daß für den Antrieb der die Finger (9, 9′) haltenden Scheiben (10), bzw. der mit diesen drehfest ver­bundenen Zahnräder (11) eine mit einem Druckmedium beauf­schlagbare Zylinder-Kolbenanordnung (12) vorgesehen ist.5. Device according to one of claims 1 to 4, characterized in that for driving the fingers (9, 9 ') holding disks (10), or the gears (11) connected to them in a rotationally fixed manner, a cylinder which can be acted upon with a pressure medium -Piston arrangement (12) is provided.
EP89890280A 1988-11-25 1989-10-30 Spreading device for lateral folds Expired - Lifetime EP0371954B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2902/88 1988-11-25
AT0290288A AT402390B (en) 1988-11-25 1988-11-25 SIDE FOLD SPREADER

Publications (2)

Publication Number Publication Date
EP0371954A1 true EP0371954A1 (en) 1990-06-06
EP0371954B1 EP0371954B1 (en) 1992-01-15

Family

ID=3542132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89890280A Expired - Lifetime EP0371954B1 (en) 1988-11-25 1989-10-30 Spreading device for lateral folds

Country Status (8)

Country Link
US (1) US4982557A (en)
EP (1) EP0371954B1 (en)
JP (1) JPH02180125A (en)
AT (1) AT402390B (en)
DE (1) DE58900737D1 (en)
ES (1) ES2027832T3 (en)
FI (1) FI895253A0 (en)
NO (1) NO174738C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8436268B1 (en) 2002-08-12 2013-05-07 Ecullet Method of and apparatus for type and color sorting of cullet
ES2278487B1 (en) * 2005-02-04 2008-06-16 Giro Gh, S.A. FOLDING DEVICE.
US20100230330A1 (en) * 2009-03-16 2010-09-16 Ecullet Method of and apparatus for the pre-processing of single stream recyclable material for sorting
US20160075098A1 (en) * 2014-09-15 2016-03-17 Eric Anthony Link Bag folding machine
ES2688539T3 (en) * 2016-01-28 2018-11-05 Girnet Internacional, S.L. Device and procedure to assist in the operation of filling and closing a container and filling and closing station of a container in a packaging machine comprising said device

Citations (2)

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Publication number Priority date Publication date Assignee Title
US2757498A (en) * 1949-12-10 1956-08-07 Meyer-Jagenberg Gunther Mechanical equipment for manufacturing, filling and sealing containers
GB2038763A (en) * 1978-12-02 1980-07-30 Rovema Gmbh Method and apparatus for the filling and sealing of sacks

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US2243805A (en) * 1940-01-27 1941-05-27 John L Knapp Bag closing and sealing machine
US2585335A (en) * 1949-03-14 1952-02-12 Mchale Packaging machine
US2940236A (en) * 1956-09-17 1960-06-14 American Viscose Corp Semi-automatic wrapping machine
US3167897A (en) * 1961-11-02 1965-02-02 Bemis Bro Bag Co Automatic bag top forming and sewing apparatus
US3755986A (en) * 1971-09-30 1973-09-04 Olinkraft Inc Gusset reformer
US4078358A (en) * 1976-08-31 1978-03-14 National Distillers And Chemical Corporation Bag-hanging and bag-filling machines adapted for synchronous and independent operation and method of using same
DE3138407C2 (en) * 1981-09-26 1987-04-23 A. Beeck GmbH & Co KG, 2900 Oldenburg Device for folding the edges of filled folding bags
DE3640581C2 (en) * 1986-11-27 1995-04-20 Greif Werk Masch Device for receiving, opening and attaching an open bag to the filler neck of a filling device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757498A (en) * 1949-12-10 1956-08-07 Meyer-Jagenberg Gunther Mechanical equipment for manufacturing, filling and sealing containers
GB2038763A (en) * 1978-12-02 1980-07-30 Rovema Gmbh Method and apparatus for the filling and sealing of sacks

Also Published As

Publication number Publication date
EP0371954B1 (en) 1992-01-15
ATA290288A (en) 1996-09-15
NO894665L (en) 1990-05-28
AT402390B (en) 1997-04-25
NO894665D0 (en) 1989-11-23
NO174738C (en) 1994-06-29
JPH02180125A (en) 1990-07-13
FI895253A0 (en) 1989-11-06
US4982557A (en) 1991-01-08
DE58900737D1 (en) 1992-02-27
NO174738B (en) 1994-03-21
ES2027832T3 (en) 1992-06-16

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