EP0436506A1 - Dispositif pour aligner des piles - Google Patents

Dispositif pour aligner des piles Download PDF

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Publication number
EP0436506A1
EP0436506A1 EP91250001A EP91250001A EP0436506A1 EP 0436506 A1 EP0436506 A1 EP 0436506A1 EP 91250001 A EP91250001 A EP 91250001A EP 91250001 A EP91250001 A EP 91250001A EP 0436506 A1 EP0436506 A1 EP 0436506A1
Authority
EP
European Patent Office
Prior art keywords
stack
area
plate
straightening
stop
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.)
Withdrawn
Application number
EP91250001A
Other languages
German (de)
English (en)
Inventor
Axel B. Tübke
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.)
System GmbH
Original Assignee
System GmbH
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 System GmbH filed Critical System GmbH
Publication of EP0436506A1 publication Critical patent/EP0436506A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/34—Apparatus for squaring-up piled articles
    • B65H31/38—Apparatus for vibrating or knocking the pile during piling
    • 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
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4223—Pressing piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S414/00—Material or article handling
    • Y10S414/10—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
    • Y10S414/12—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns including means pressing against top or end of group

Definitions

  • the invention relates to a device of the type specified in the preamble of claim 1.
  • Such a device for straightening a stack of several sheets of paper or the like is known from DE 37 12 104 Al.
  • This is connected to a horizontal conveyor system made up of a plurality of individual longitudinal conveyors arranged next to one another at a distance.
  • a stacking grate with longitudinal beams parallel to the individual longitudinal conveyors is arranged below the transport level of the horizontal conveyor system.
  • a front stack stop which is displaceable perpendicularly to and over the transport plane is provided.
  • the front of the stack supporting grate is mounted in the horizontal conveyor system so as to be pivotable about a horizontal transverse axis and can be raised above the transport level with the aid of a lifting unit acting on its rear end with its stack support surface formed by the longitudinal beams.
  • a lower and two vibrator plates and an upper press plate for straightening the stack are assigned to the stack support grate.
  • the known device has the disadvantage that it is very complicated and expensive.
  • the stacks can only be straightened in the inclined state.
  • Each stack to be aligned must therefore be swung back and forth by the straightening device.
  • the device proves to be susceptible to failure, in particular under continuous load.
  • the high expenditure of time associated with the alignment process and the resulting costs have an unfavorable effect on the profitability of the known device.
  • the device can only be loaded and disposed of via the horizontal conveyor, which makes it very inflexible and unsuitable for other, differently designed conveyor devices. Furthermore loses the straightened stack during further transport on the horizontal conveyor after straightening, its pressed state as well as its straightened shape.
  • the invention has for its object to provide a simple construction with a device of the type mentioned above while eliminating the disadvantages mentioned, with which the device can be linked to other conveyors and / or processing machines while maintaining its directed shape.
  • the time required for the alignment process in connection with the transport processes is to be reduced.
  • the invention is based on the finding that the desired level of alignment of a stack can also be achieved with the device by aligning in the plane, the process speed can be increased significantly, and process-favorable measures can be made possible in connection with a pressure means and with access areas for a gripper.
  • a support surface for the stack and a pressure means that can be lowered vertically from above onto the stack are provided.
  • the pressure medium and the contact surface are assigned to each other.
  • an access area that is free from at least one side is provided above and below the aligned stack for a gripper, which is arranged between the pressure means and the support surface. The stack can thus be gripped freely by the gripper.
  • the stack remains almost at first through the pressure means and the support surface and then through the tines of the gripper which compress the stack continuously under a load compressing the stack.
  • the pressure on the stack is also maintained during the transport process, so that no air that destabilizes the stack can get between the individual foils.
  • the gripper is therefore significantly more suitable for the transport processes than the horizontal conveyor. Therefore, it is particularly favorable to dispose of the aligned stack from the straightening area with a gripper.
  • Recesses in the support plane of the stack form the access area for the gripper below the stack, so that the gripper can be guided under the stack.
  • the stack can thus be gripped by the gripper in a time-saving and transport-friendly manner after the gripper has been brought into the recess against the conveying direction of the stack.
  • the lower prongs of the gripper are arranged completely below the stack during the gripping process. This ensures optimized access and a load that optimally holds the stack in the aligned state.
  • the cutouts extend essentially horizontally in the supporting plane of the stack against the conveying direction.
  • the pressure means is designed as a press plate which can be guided from above onto the stack located in the straightening area.
  • the press plate presses in an advantageous manner during straightening the air between the sheets or foils out of the stack, so that the stack is in a favorable stable, compact and compressed state after straightening.
  • the films forming the stack are largely secured against slipping among one another.
  • the straightening area, the exit area and thus the position in which the stack is gripped by the gripper correspond to one another.
  • the stack is taken directly and without wasting time.
  • the support surface is formed by a lifting plate with a lifting drive for the stack in the straightening area.
  • the lifting plate below the support level of the horizontal conveyor is arranged in the straightening area.
  • the lifting device consisting of the lifting plate and the lifting drive, is characterized by a stroke that exceeds the straightening range.
  • the press plate is designed to be movable upwards by a coordinated movement with the lift height of the lift plate.
  • height compensation is advantageously possible without the forces acting on the stack and stabilizing it having to be released.
  • the stack can thus be aligned, compressed and taken over by the gripper at a height that is favorable for the further process.
  • a height compensation is particularly evident in the overall concept of an alignment station, transport and further processing system or palletizing machines as process-favorable and especially with regard to possible parallel work processes as process time reduction.
  • a further stop plate is arranged on the side of the stack for the straightening process that is remote from the stack stop.
  • the further stop plate is designed to be pivotable in the conveying area about an axis of rotation extending parallel to the conveying direction.
  • the further stop plate has a vibrator drive and thus also acts as a vibrator plate for the straightening process. This enables the stacks to be transported unhindered in the straightening area by the horizontal conveyor and to limit the stacks from all sides during straightening and to excite them from three sides.
  • the lateral stop plates are preferably mounted so as to be pivotable about a vertically directed axis. This gives the stack enough space for further movements and transport processes. Furthermore, the stop plates can hereby be adapted to different stack widths.
  • air nozzles for lifting the stack during alignment are also preferably arranged.
  • the stack can thus be lifted just above the support surface during the straightening process, thereby preventing the underside from being damaged by the vibrating movements of the stack or the bottom film.
  • a separating device for the continuously following stack is provided in front of the entry area, so that the stacks in the straightening area are advantageously prevented from the outset.
  • FIG. 1 shows a top view of an exemplary embodiment of the device for straightening a stack, in particular consisting of a plurality of foils
  • FIG. 2 shows a cross section of the same exemplary embodiment of the invention formed along a section line A-A shown in FIG. 1.
  • the description below refers to both figures.
  • the device 10 according to the invention for straightening the stack (not shown here) has the following elements and features:
  • a horizontal conveyor 12 for transporting the stacks from an entry area 13, in a straightening area 14 and in an exit area 15.
  • the horizontal conveyor 12 extends essentially parallel to the upwardly facing work surface 111 of the worktop 11 and consists of two parallel longitudinal conveyors 121 and 122 arranged parallel to each other.
  • the support surface 123 of the horizontal conveyor 12 is arranged just above the work surface 111, so that the the stack lying on the horizontal conveyor 12 does not drag along the worktop 11 during transport via the entry region 13 into the straightening region 14 of the device 10.
  • a stack stop 16 Arranged in the exit region 15 of the horizontal conveyor 12 of the device 10 is a stack stop 16 which extends transversely to the conveying direction of the stack S and can be moved into the stack conveyor region.
  • the stack stop 16 is pivotally mounted about an axis of rotation directed parallel to the conveying direction of the horizontal conveyor 12 and connected to a drive means 17 via a rotating arm 18. Thus, the stack stop 16 can be simply pivoted into the stack conveying area by the drive means 17.
  • Two stop plates 19 and 20 are provided to the side of the straightening region 14 of the stack, both of which are designed as vibrator plates.
  • Each stop plate 19 and 20 for the stack has a vibrator drive 21 and 22.
  • the stop plates 19 and 20 are each designed to be pivotable about a vertically directed axis and are connected to a swivel drive 23 or 24 via a rotary arm 25 or 26 and a parallel guide 27 or 28.
  • the pivotable stop plates 19 and 20 are arranged on the worktop 11 in mirror symmetry.
  • the stop plates 19 and 20 are pivoted by this arrangement parallel to the side surfaces of the stack S, at the same time to each other for alignment. After the alignment process, the stop plates 19 and 20 come loose from the side surfaces of the stack. In this way, the stack is released for removal from the straightening area 14. Furthermore, the stop plates 19 and 20 can be easily adapted to different stack widths due to their design and arrangement. The stop plates 19 and 20 are simply moved according to the stack size.
  • a further stop plate 29 is provided in the entry area 13 of the stack. This is also designed as a vibrator plate with a vibrator drive 30, a rotating arm 31 and a further drive means 32 corresponding to the stack stop 16.
  • the stop plate 29 is in this case rotatably mounted about an axis which is oriented essentially parallel to the conveying direction and can thus be pivoted into the stack conveying region, corresponding to the stack stop 16.
  • a rail 33 directed parallel to the conveying direction and assigned to the further drive means 32 enables the arrangement consisting of the further drive means 32, the rotating arm 31, the vibrator drive 30 and the stop plate 29 to be shifted in a latching manner around the rotation range of the pivotable, adjacent side stop plate 20 to restrict is Rail 33 embedded in the worktop 11 so that it is flush with the work surface 111.
  • the stop plate 29 due to the displaceability of the stop plate 29 in the conveying direction, it can be optimally arranged in accordance with the dimensions of the stack to be straightened for the straightening process to the stack. Furthermore, the accuracy of the stack is improved by this additional stop plate 29 designed as a vibrator plate. In particular, because from three sides the vibrating stop plates 19, 20 and 29 on the stack and the stack stop 16 generate strong vibratory movements of the foils forming the stack by counteracting them in relation to the forces occurring during alignment and thus ensure a favorable straightening of the stack.
  • a lifting means acting vertically upwards consisting of a pneumatic lifting drive 34 and a lifting plate 35, is provided.
  • the lifting plate 35 does not quite have the width of the distance between the two individual conveyors 121 and 122 from one another, so that the lifting plate 35 can be moved freely between the individual longitudinal conveyors 121 and 122 in the vertical direction.
  • a recess forming an access area 36 which is laterally delimited by the individual conveyors 121 and 122 of the horizontal conveyor 12, is provided for the gripper 37 having tines 37.
  • the access area 36 corresponds in its extension in the conveying direction, between the stack stop 16 and the lifting plate 35, at least to the length of the prongs 37 of the gripper.
  • the tines 37 are shown in broken lines here and the recess forming the access area 36 extends from the lifting plate 35 in the conveying direction to the edge area of the worktop 11.
  • a press plate 40 is mounted on a lever arm 41 so that it can be moved in the vertical direction via a further drive means 39.
  • the pressing plate 40 is assigned to the vertical axis of movement of the lifting plate 35, the further drive means 39 and the lifting drive 34 being designed in coordinated movements, holding the stack so that they can be moved upwards.
  • the device 10 is distinguished by the different possibilities for transporting the directed stack from the straightening area 14. Therefore, with regard to the subsequent machines, automatic palletizers or corresponding devices, the device 10 has an adaptability of the process heights or access areas required by these different devices and thus a high degree of flexibility.
  • the stack is now transported in different processes that are optimized for further use.
  • the stack stop 16 and the further stop plate 29 fold back.
  • the press plate 40 is moved upward, so that the stack is transported further in the conveying direction by the horizontal conveyor 12 and / or is gripped at its end by the gripper for further transport.
  • the head of the stack 14 moving on the horizontal conveyor 12 is favorable for the further process. In this case, height adjustment is not necessary.
  • the stack is lifted out of the stack stop 16 after the end of the stack stop Straightening area 14 removed by the gripper with the release of the press plate 40.
  • the further stop plate 29 is provided as a stack stop for the forces acting against the conveying direction of the horizontal conveyor during the gripping process.
  • the gripper is guided into the recess forming the access area 36 in front of the lifting plate 35, so that the gripper can grip the stack and move it.
  • the stack can also be gripped by the gripper above the straightening area 14 if height compensation is favorable for further handling.
  • the stack is moved vertically in a coordinated movement of lifting plate 35 and pressing plate 40 beyond the straightening area 14.
  • the gripper now approaches the stack against the conveying direction until the stack strikes a stop means of the gripper.
  • the tines 37 are arranged completely under or above the stack during the gripping process and take hold of the latter when the pressing plate 40 is released.
  • the stack stop 16 does not have to be moved in this process variant, but the further stop plate 29, on the other hand, is used for receiving the next stack pivoted out of the funding area.
  • a height compensation necessary for moving the stack into the following machine or by the following palletizing machine can already be achieved in a simple and speed-optimized manner by the lifting movement of the lifting plate 35 and the pressing plate 40.
  • air nozzles are provided for lifting the stack just above the support surface 123 of the horizontal conveyor 12.
  • the lifting of the stack is done by the lifting plate 35 in order to avoid damaging the bottom film of the stack due to the profiled contact surface 123 of the horizontal conveyor 12.
  • a separating device (not shown here) for the continuously following stacks is provided in front of the entry area 13, so that the stacks in the straightening area 14 are prevented from opening up from the outset.
  • the control of the separating device is coupled to the processes of the device 10 and the horizontal conveyor. This advantageously enables a continuous loading of the device with stacks.
  • the embodiment of the invention is not limited to the preferred exemplary embodiment specified above. Rather, a number of variants are conceivable which make use of the solution shown, even in the case of fundamentally different types.
EP91250001A 1990-01-03 1991-01-02 Dispositif pour aligner des piles Withdrawn EP0436506A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4000263A DE4000263A1 (de) 1990-01-03 1990-01-03 Vorrichtung zum richten von stapeln
DE4000263 1990-01-03

Publications (1)

Publication Number Publication Date
EP0436506A1 true EP0436506A1 (fr) 1991-07-10

Family

ID=6397692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91250001A Withdrawn EP0436506A1 (fr) 1990-01-03 1991-01-02 Dispositif pour aligner des piles

Country Status (3)

Country Link
US (1) US5197849A (fr)
EP (1) EP0436506A1 (fr)
DE (1) DE4000263A1 (fr)

Families Citing this family (16)

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Publication number Priority date Publication date Assignee Title
DE4235413A1 (de) * 1992-10-21 1994-04-28 Bielomatik Leuze & Co Positioniervorrichtung für Stückgut
DE4236362A1 (de) * 1992-10-28 1994-05-05 Kolbus Gmbh & Co Kg Ausfuhreinrichtung für Buchfadenheftmaschine
DE4301169A1 (de) * 1993-01-20 1994-07-21 Focke & Co Verfahren und Vorrichtung zur Handhabung von Zuschnitt-Stapeln mit Banderole
DE4307361A1 (de) * 1993-03-09 1994-09-15 Wolfgang Mohr Rütteltisch
US5450940A (en) * 1994-05-03 1995-09-19 Kolbus Gmbh & Co. Kg Delivery system for book-sewing machine
JP3187056B2 (ja) * 1994-09-21 2001-07-11 エルテックス−エレクトロスタティク・ゲー・エム・ベー・ハー コンベアテーブル上で堆積物を形成する装置
DE19515411A1 (de) * 1995-04-19 1996-10-24 Eltex Elektrostatik Gmbh Vorrichtung zum Bilden eines Stapels auf einem Transporttisch
DE19728515A1 (de) * 1997-07-04 1999-01-07 Focke & Co Verfahren und Vorrichtung zum Herstellen von Klappschachteln für Zigaretten
US5970834A (en) * 1997-11-17 1999-10-26 R. A. Pearson Company Depalletizer and hopper feeder
FR2774976B1 (fr) * 1998-02-19 2000-04-14 Martin Sa Procede et dispositif pour redresser et/ou orienter une pile de materiau en feuilles deformee sur un transporteur a rouleaux
US6632067B1 (en) * 2000-11-01 2003-10-14 Oullette Machinery Systems, Inc. Pallet dispenser with quick pallet size change over
DE10133725B4 (de) * 2001-07-11 2004-08-26 Nexpress Solutions Llc Verfahren zum Stapeln von Papierbogen und Ausleger einer Druckmaschine
US8267637B2 (en) * 2010-07-09 2012-09-18 Ouellette Machinery Systems, Inc. Apparatus for vertically aligning and accumulating stacks of pallets delivered to a pallet dispenser
CN109436694B (zh) * 2018-11-20 2023-12-05 广州赛志系统科技有限公司 智能柔性封边线进料系统
DE102022100819A1 (de) 2022-01-14 2023-07-20 Koenig & Bauer Ag Rüttelvorrichtung sowie ein Verfahren zum Betreiben einer Rüttelvorrichtung
CN116619771B (zh) * 2023-07-24 2023-09-26 淮安欣欣塑胶制品有限公司 充气拉丝垫模具及其生产工艺

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US3842995A (en) * 1971-12-02 1974-10-22 Dooley & Co Sheet squaring apparatus
DE3712104A1 (de) * 1987-04-10 1988-11-03 Segbert Stephan Galvano Vorrichtung zum richten eines stapels in einer horizontalfoerderanlage

Also Published As

Publication number Publication date
DE4000263A1 (de) 1991-07-04
US5197849A (en) 1993-03-30

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