EP0371276B1 - Dispositif pour empiler des objets plats - Google Patents

Dispositif pour empiler des objets plats Download PDF

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Publication number
EP0371276B1
EP0371276B1 EP19890120382 EP89120382A EP0371276B1 EP 0371276 B1 EP0371276 B1 EP 0371276B1 EP 19890120382 EP19890120382 EP 19890120382 EP 89120382 A EP89120382 A EP 89120382A EP 0371276 B1 EP0371276 B1 EP 0371276B1
Authority
EP
European Patent Office
Prior art keywords
stacking
conveyor
stacks
transfer
stack
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.)
Expired - Lifetime
Application number
EP19890120382
Other languages
German (de)
English (en)
Other versions
EP0371276A1 (fr
Inventor
Herbert Dr.-Ing. Birkhofer
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP0371276A1 publication Critical patent/EP0371276A1/fr
Application granted granted Critical
Publication of EP0371276B1 publication Critical patent/EP0371276B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/98—Delivering in stacks or bundles
    • B31B70/984—Stacking bags on wicket pins
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/426—Forming batches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2033—Including means to form or hold pile of product pieces
    • Y10T83/2037—In stacked or packed relation
    • Y10T83/2046—Including means to move stack bodily
    • Y10T83/2048—By movement of stack holder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2033—Including means to form or hold pile of product pieces
    • Y10T83/2037—In stacked or packed relation
    • Y10T83/2057—Including means to deliver individual pieces to a stack holder
    • Y10T83/2059—With spindle to enter a hole or to make hole in product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/283—With means to control or modify temperature of apparatus or work
    • Y10T83/293—Of tool

Definitions

  • the invention relates to a device for stacking flat objects, preferably double bags welded from a plastic tube or semi-tube sheet, with opening edges lying in the region of their center lines, which are attached by a transfer device consisting of a so-called Wicketer to a shaft and rotating about a horizontal axis , star-like and paired transport arms are needled on a holding plate arranged in a stacking station and carrying upstanding stacking pins or needles in the region of their longitudinal center line to form stacks.
  • a transfer device consisting of a so-called Wicketer to a shaft and rotating about a horizontal axis
  • star-like and paired transport arms are needled on a holding plate arranged in a stacking station and carrying upstanding stacking pins or needles in the region of their longitudinal center line to form stacks.
  • Devices of this type are known for example from DE-B-36 11 237 and DE-U-80 00 912.
  • the problem with these devices is that the stacks formed in each case are so quickly removed from the area of the transport arms that feed the objects that the device can be operated without interruption.
  • a Wicketer stacking device in which the flat objects are stacked on a retractable cassette to the device without interruption to be able to operate the funding.
  • the known device not only has a complicated structure, in this case relatively large masses must also be moved within a very short time.
  • the object of the invention is therefore to provide a device of the type mentioned, in which stacks can be formed and removed with continuous conveyance of the flat objects, without parts of the stacking device having to be accelerated and braked for a short time.
  • this object is achieved in a device of the generic type in that two radial holding plates are rotatably mounted on the shaft or axis, each of which is provided with separate drives for pivoting them into their stack-receiving position and that a device for removing the Stack of the holding plates successively rotated into the stacking position and for their removal is provided.
  • the stacking takes place in each case on holding plates rotatable in identical radial planes about the axis of the winder, on which the transport arms place the flat objects. If a stack of a predetermined number of pieces has been formed on a holding plate, the holding plate located below the holding plate collecting the last stack in its waiting position is rotated into its stacking position above the last stack at a rotational speed corresponding to the transport arms. During the formation of the new stack, the stack can be removed and removed from the holding plate which is now located below the holding plate which is stacking the objects being conveyed.
  • the last stack formed After the last stack formed has been removed from the holding plate, it can be pivoted into a standby position are, from which it in turn is rotated into its stacking position at a speed corresponding to the transport arms when a stack with the desired number of pieces has been formed on the subsequent stacking plate.
  • the subsequent holding plate can be pivoted into a position during the stacking, from which the finished stack is then removed.
  • the stacking on the next holding plate can already begin at a time when it has not yet been rotated into a position from which the finished stacks are transported, because the storage of the holding plates on the Wicketer axis always ensures that they are correctly positioned Holding plates to the objects to be stacked is guaranteed.
  • a sled-like transfer conveyor provided with a gripper is provided for taking over the stacks from the holding plates and for their removal, which transfers the stacks to a stacking conveyor consisting of endless, intermittently driven traction means running over deflection wheels or rollers .
  • the traction means of the stacking conveyor are expediently provided with upstanding needles or stacking pins.
  • the transfer conveyor or the like in guide channels.
  • a raised or lowered frame or table is arranged. This configuration makes it possible to feed the stacks to be transferred to the stack conveyor first above the level of the needles or pins and then to lower them onto the stack conveyor for needling.
  • the transfer conveyor consists of chains or the like driven to and fro. arranged holding jaws on which cooperating grippers are mounted.
  • pairs of grippers are arranged on both sides of the stack, the spacing of which can be adjusted according to the format of the stack.
  • a holding jaw can be arranged firmly on the chain and the associated holding jaw can be displaceable relative to the latter on guide rods or sliders of the chain.
  • the transfer conveyor and the stacking conveyor are expediently designed to overlap one another so that simple transfer is possible.
  • a fixed knife is arranged above the transfer conveyor and / or the stack conveyor for separating the stack, against which the stack can be pressed by a lifting and lowering abutment bracket.
  • pressure bars that can be raised and lowered can be arranged on both sides of the knife, which cooperate with the abutment bracket.
  • the stacking device according to the invention is not only suitable for stacking objects which are fixed in the region of their center line, for example double bags, but also for stacking single bags.
  • two fork-shaped holding plates are mounted on the winding shaft or axis, which can be pivoted in the same radial planes. These fork-shaped holding plates differ from the holding plates for stacking in their area Center line to be fixed essentially by the fact that they form wider contact surfaces.
  • FIG. 1 designates two spaced apart side frames, in which a shaft 2 is rotatably mounted. Between the side frames 1, two hubs 3 and 4 are placed on the shaft 2, of which the hub 3 is designed as a pulley.
  • the shaft 2 can be set in rotation by means of a belt 5 and a motor 6.
  • radially outwardly extending spokes 7 are placed on the hubs 3 and 4, which are hollow and have suction bores 8.
  • Approximately in the middle of the shaft 2 is one Spacer 9 firmly connected.
  • sleeves 10 and 11 are freely rotatable on the shaft, the sleeves 11 having recesses 12 and 13 in which a V-belt 14 and 15 runs.
  • a motor 16 and 17 is assigned to each V-belt, so that the sleeves 10 and 11 can be driven independently of one another.
  • Angled arms 18 and 19 are firmly welded to the sleeves 10 and 11, their free-running legs 20 and 21 lying one above the other. During their rotational movement, the freely running legs 20 and 21 pass through a U-shaped recess 23 of a lifting table 24.
  • This lifting table essentially consists of a stand 25 and a piston-cylinder unit mounted therein, the piston rod 26 of which is connected to a part 27 which can be lifted off.
  • This part 27 is designed as a hollow casting with two lateral guide channels 28. In each of these guide channels 28 there are two deflection sprockets, only one of which, namely the sprocket 29, is shown. Both sprockets are wrapped in an endless chain 30, in which a drive pinion 31 engages.
  • This pinion 31 is driven by a motor 32.
  • Two chains 33 and 34 are fixedly connected to the chain 30, the distance between them being adjustable via spindles 35.
  • Grippers 37 are fastened to the holders via axes 36 and can be moved via piston-cylinder units 38.
  • a conveyor belt 41 is provided which is equipped with two needle bars 39 and 40 and which has a front and a rear deflection roller 42 and 43, respectively.
  • the front deflection roller 42 is located between the two guide channels 28 and is held by a support 44.
  • the rear deflection roller 43 is mounted between two frame side walls 45 and 46 which are provided parallel and at a distance from one another and over a motor 47 can be driven.
  • a piston-cylinder unit 48 is provided, the piston rod 49 of which carries an abutment bracket 50.
  • This abutment bracket 50 has two incisions 51 through which the two belts 52 of the conveyor belt 41 running parallel to one another run.
  • a bag separating device 53 is provided above the abutment bracket 50 and above the conveyor belt 41, which is carried by a portal 54 connected to the side walls 45 and 46. It essentially consists of a stationary separating knife 55 and pressure bars 56 running on both sides of the knife. These pressure bars 56 are connected via guide rods 57 to a plate 58 which can be raised or lowered via a piston-cylinder unit 59.
  • FIGS. 2 to 5 The mode of operation of the freely running legs of the angled arms 18 and 19 will now be explained with reference to FIGS. 2 to 5.
  • the free-flowing leg 21 is located in the U-shaped recess 23 between the guide channels 28.
  • the individual bags transported by the spokes 7 are then needled onto this free-running leg, while the free-running leg 20 is in a neutral position below the leg 21.
  • the motor 17 is switched on and the leg 20 is pivoted over the position shown in FIG. 3 into the position shown in FIG. This position is also shown in Figure 3.
  • the speed at which the leg 20 moves from the position shown in FIG. 2 to the position shown in FIG. 3 can be as desired.
  • the leg 20 may only with the speed of rotation move with which the spokes 7 are moved to prevent that at higher speed of the arm 70 this for example knocks off a bag already deposited on the spokes 7 'from the spokes.
  • the rotational movement of the leg 20 is stopped in the position shown in Figure 4, so that the bag placed on the spokes 7 ⁇ and the following are now placed on the arm 20 instead of the arm 21.
  • the stack 60 which is temporarily stored on the arm 21 is gripped by the grippers 37 and can be moved off as soon as the free leg 21 has moved into the position shown in FIG. This is done by switching on the motor 16.
  • the leg 20 can move into the position which is shown in FIG. 2 for the leg 21.
  • the lifting table 24 is raised so far that the bag stack 60 clamped onto the holders 33 and 34 by the grippers 37 is located above the needle bars 39 and 40.
  • This position is shown in FIG. 6. If there is now a stack of bags 60 below the stack separating device 53, the pressure strips 56 lay on the stack of bags 60 from above and press them down onto the needles 39 and 40, the part 27 being lowered at the same time. This position is shown in Figure 7 (the pressure strips 56 are shown with broken lines).
  • the grippers 37 are then pivoted away, ie they lie in the guide channels 28 and no longer protrude beyond them. By switching the motor 32 (FIG. 1), the grippers 37 are then moved back into the position shown in FIG.
  • FIG. 10 shows the possibility of depositing a stack on a table 61, from which it can then be pulled down and transported away, for example, by the gripper 62, which is only indicated in the illustration. So that the grippers 63 of this gripper carriage 62 can grasp the stack of bags, the table 61 consisting of two halves has corresponding recesses 64.
  • the design of the gripping device should not be discussed in detail, since it is not the subject of the invention.
  • FIG. 11 shows the possibility of storage in a single-use operation.
  • the free tapered legs 20 'and 21' are rake-shaped.
  • the angled arm 20 ' is welded to a sleeve 10' which sits on a tube 65 which rotatably engages around the shaft 2 '.
  • a sleeve 111 ' is freely rotated, with which the angled lever 18' is firmly welded.
  • a drive pulley 66 or 67 is firmly connected, via which the free legs 20' and 21 'can be rotated. This is done using V-belts 68 and 69 as well as motors 70 and 71, which can be driven independently of one another.
  • FIG. 12 Another possibility of mounting the legs 20 'and 21' on the shaft 2 ' is shown in Figure 12. From this it can be seen that on the shaft 2 'a hub 72 is also freely rotatable, with which the legs 20' are welded. This hub 72 is freely rotatably encompassed by a further hub 73, the latter being firmly welded to the legs 21 '. The arms 20 'and 21' can then be rotated via a gear 74 connected to the front end of the hub 72 and via a gear 75 seated centrally on the hub 73.

Claims (10)

  1. Dispositif pour empiler des objets plats, de préférence des sacs doubles séparés par soudage d'une bande formant gaine ou demi-gaine en matière plastique présentant des bords d'ouverture situés au voisinage de leurs lignes médianes qui sont épinglés par un dispositif de transfert constitué d'un soi-disant "guichet" avec des bras de transport fixés sur un arbre et tournant autour d'un axe horizontal, disposés en étoile et par paires sur une plaque de support disposée dans une station d'empilage supportant des tiges ou aiguilles d'empilage en saillie au voisinage de leurs lignes longitudinales médianes en vue de la formation de piles, caractérisé en ce que deux plaques de maintien radial (20, 21) sont logées sur l'arbre (2) ou l'axe de façon à pouvoir tourner qui sont pourvues d'entraînements (16, 17) en vue de leur pivotement dans leur position d'empilage recevant les objets, et en ce qu'un dispositif est prévu pour l'enlèvement des piles des plaques de support tournées successivement dans la position d'empilage et en vue de l'évacuation de celles-ci.
  2. Dispositif selon la revendication 1, caractérisé en ce que la plaque de support à pivoter à chaque fois dans la position d'empilage peut être pivotée à partir de sa position d'attente en dessous de la plaque de support se trouvant précisément dans la position d'empilage environ avec la vitesse de rotation correspondant aux bras de support dans la position d'empilage.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'il est prévu pour la reprise des piles des plaques de support et pour l'évacuation de celles-ci un convoyeur de transfert en forme de chariot présentant des griffes qui transmet les piles à un transporteur gerbeur comprenant des moyens de traction sans fin, passant sur des roues ou galets de renvoi, entraînés par intermittence.
  4. Dispositif selon la revendication 3, caractérisé en ce que les moyens de traction du transporteur gerbeur sont équipés d'aiguilles (39, 40) ou de tiges d'empilage en saillie.
  5. Dispositif selon l'une des revendications 3 ou 4, caractérisé en ce que le convoyeur de transfert est disposé dans des canaux de guidage d'un châssis ou table pouvant être levé ou abaissé.
  6. Dispositif selon l'une des revendications 3 à 5, caractérisé en ce que le convoyeur de transfert est constitué de mâchoires de support disposées sur des chaînes ou analogues entraînées suivant un mouvement alternatif sur lesquelles sont placées des griffes coopérant avec celles-ci.
  7. Dispositif selon l'une des revendications 3 à 6, caractérisé en ce que le convoyeur de transfert et le transporteur gerbeur se chevauchent.
  8. Dispositif selon l'une des revendications 3 à 7, caractérisé en ce qu'on a disposé pour la séparation des piles au-dessus du convoyeur de transfert et/ou du transporteur gerbeur un couteau solidaire du bâti contre lequel peuvent être pressées les piles par un support formant butée pouvant être levé et abaissé.
  9. Dispositif selon la revendication 8, caractérisé en ce que des barres de compression pouvant être levées et abaissées sont disposées des deux côtés du couteau et coopèrent avec le support formant butée.
  10. Dispositif selon la revendication 1, caractérisé en ce qu'on a logé pour l'empilage de sacs simples qui sont épinglés au voisinage de leurs bords d'ouverture, sur l'arbre ou l'axe formant guichet deux plaques de support en forme de fourche qu'on peut faire pivoter dans les mêmes plans radiaux.
EP19890120382 1988-11-14 1989-11-03 Dispositif pour empiler des objets plats Expired - Lifetime EP0371276B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883838563 DE3838563A1 (de) 1988-11-14 1988-11-14 Vorrichtung zum stapeln von flachen gegenstaenden
DE3838563 1988-11-14

Publications (2)

Publication Number Publication Date
EP0371276A1 EP0371276A1 (fr) 1990-06-06
EP0371276B1 true EP0371276B1 (fr) 1993-02-24

Family

ID=6367147

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890120382 Expired - Lifetime EP0371276B1 (fr) 1988-11-14 1989-11-03 Dispositif pour empiler des objets plats

Country Status (5)

Country Link
US (1) US5085111A (fr)
EP (1) EP0371276B1 (fr)
JP (1) JPH02198970A (fr)
CA (1) CA2002932A1 (fr)
DE (2) DE3838563A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8915722U1 (fr) * 1989-01-13 1991-03-21 Windmoeller & Hoelscher, 4540 Lengerich, De
US5806396A (en) * 1994-08-31 1998-09-15 Kabushiki Kaisha Nca Automatic fabric pattern matching apparatus
DE29619465U1 (de) * 1996-11-08 1998-03-05 Sachsenring Entwicklungsgesell Vorrichtung zum Abnehmen und Stapeln flacher Gegenstände
DE19751798A1 (de) * 1997-11-24 1999-05-27 Lemo Maschb Gmbh Verfahren und Vorrichtung zum gleichzeitigen Herstellen von jeweils zwei Beuteln, insbesondere Automatenbeuteln aus Doppelfolienbahnabschnitten einer flachgelegten Schlauchbahn
JP3856930B2 (ja) * 1997-12-17 2006-12-13 富士フイルムホールディングス株式会社 感光材料への遮光材料装着方法およびその装置
DE19825065A1 (de) * 1998-06-04 1999-12-16 Indag Gmbh & Co Betriebs Kg Vorrichtung und Verfahren zum Herstellen und Verpacken von Folienbeuteln
US20060070351A1 (en) * 2004-10-01 2006-04-06 Solar Communications, Inc. Wicketed bag fabrication and packaging process
DE102017125314A1 (de) * 2016-10-27 2018-05-03 Lemo Maschinenbau Gmbh Verbesserung in der Klappbeutelherstellung
CN110039832A (zh) * 2019-05-20 2019-07-23 江苏万乐自动化装备有限公司 一种旋转叠袋装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758214A (en) * 1983-09-02 1988-07-19 Fmc Corporation Twin wicketing bag machine
DE3415992A1 (de) * 1984-04-28 1985-11-07 LEMO M. Lehmacher & Sohn GmbH Maschinenfabrik, 5216 Niederkassel Vorrichtung zum stapeln und verblocken von kunststoffbeuteln
DE3505858A1 (de) * 1984-11-23 1986-06-05 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum stapeln von flachen gegenstaenden, vorzugsweise beuteln aus kunststoffolie
US4668148A (en) * 1985-06-27 1987-05-26 Fmc Corporation Sheet stacking and transferring device
DE3611237A1 (de) * 1986-04-04 1987-10-08 Windmoeller & Hoelscher Vorrichtung zum stapeln von flachen gegenstaenden, vorzugsweise doppelbeuteln aus kunststoffolie
DE3637491A1 (de) * 1986-11-04 1988-05-19 Windmoeller & Hoelscher Verfahren und vorrichtung zum stapeln von flachen gegenstaenden vorzugsweise doppelbeuteln, aus kunststoffolie

Also Published As

Publication number Publication date
JPH02198970A (ja) 1990-08-07
DE3838563A1 (de) 1990-05-17
EP0371276A1 (fr) 1990-06-06
US5085111A (en) 1992-02-04
CA2002932A1 (fr) 1990-05-14
DE58903607D1 (de) 1993-04-01

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