EP0937671B1 - Verfahren und Vorrichtung zum Ausrichten eines unregelmässigen Stapels von Blattmaterial auf einer Rollenbahn - Google Patents

Verfahren und Vorrichtung zum Ausrichten eines unregelmässigen Stapels von Blattmaterial auf einer Rollenbahn Download PDF

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Publication number
EP0937671B1
EP0937671B1 EP99102440A EP99102440A EP0937671B1 EP 0937671 B1 EP0937671 B1 EP 0937671B1 EP 99102440 A EP99102440 A EP 99102440A EP 99102440 A EP99102440 A EP 99102440A EP 0937671 B1 EP0937671 B1 EP 0937671B1
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EP
European Patent Office
Prior art keywords
stack
rollers
stop surface
fact
conveyance
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
EP99102440A
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English (en)
French (fr)
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EP0937671A1 (de
Inventor
Régis Breysse
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.)
Martin
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Martin
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Publication date
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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
    • B65H31/40—Separate receivers, troughs, and like apparatus for knocking-up completed 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • the present invention relates to a method for straightening a pile of sheet material deformed following its transport on a roller conveyor, the rollers of which are mounted around axes of parallel rotation extending transversely to the direction of transport of said stack.
  • This invention also relates to a device for straighten a stack of sheet material deformed by its transport on a roller conveyor having parallel axes of rotation extending transversely to the direction of transport.
  • this invention relates to the use of this device for changing orientation of stacks of sheet material.
  • stacks of cutouts of cardboard undergo various operations of cutting, grooving, etc., and are therefore intended to be transported on relatively large distances from one location to another in the plant.
  • stacks of cardboard blanks of up to 1.5 to 2 meters and weighing several hundred kilos, typically 500 to 750 kg, are transported by conventional roller conveyors.
  • the main purpose of the present invention is to provide a solution able to remedy, at least partially, this drawback.
  • this invention firstly relates to a method for straightening a stack of deformed sheet material on a conveyor rollers, in which said stack is engaged with a surface immobilization, and that one drives the axes of the rollers on which rests this pile in a translational movement directed in the direction of transport of this stack, leaving the rollers to rotate freely around their respective axes of rotation.
  • This invention also relates to a device for straightening a stack of deformed cardboard cutouts on a roller conveyor, which comprises a surface for immobilizing said cell and at least one train of rollers rotatably mounted on pivot axes parallel and transverse to the transport path of said stack on said conveyor, the respective ends of these axes being associated with articulation axes of links of two respective endless chains mounted on guide and drive means and one of which strands is underlying said stack, these drive means being intended to move said rollers of the strand of said underlying chain to said pile in a translational movement in the direction of advance communicated to said battery by said transporter until rectification of it.
  • the bottom leaves of the pile have a wavy shape given by the rollers and the pressure exerted by the pile, so that the rollers slide in the bottom of the corrugations formed at the base of the pile without bringing the cutouts under the pile.
  • the deformation of the pile becomes dangerous for its stability from a certain transport distance, so that the device according to the invention can be arranged in the chain transport as soon as a certain transport length is reached from from which a risk may exist for the stability of the transported batteries.
  • Another object of this invention consists in using the device for straightening the batteries to change their direction.
  • the principle of this device allows not only to straighten the deformed piles, but also to change the orientation of these piles, allowing more flexibility to the transport chain.
  • the device illustrated in Figs. 1 to 4 is a straightening conveyor stack of P sheet material, including cardboard blanks, plus particularly corrugated cardboard, which has three parallel parts, a central part 1 formed by an endless pallet chain, and two side parts 2, 3 each formed by a series of rollers 4 mounted free around respective axes 5.
  • the respective ends of these axes form the axis of articulation of links of four endless chains 6, 7 for side part 2 and 8, 9 for side part 3.
  • the endless chains 6, 7 pass around two pairs of wheels 10, 11 of which only the pair of wheels 11 is visible in the drawing, the pair of wheels 10 being hidden by the chains 6, 7.
  • the endless chains 8, 9 pass around two pairs of wheels 12 and 13.
  • the pairs of wheels 10 and 12 are integral with a common shaft 20, while the pairs of wheels 11 and 13 are integral with a common shaft 21 (Fig. 4).
  • FIG. 1 A mechanism for driving these chains 6-9 is illustrated by the Figs. 1 and 3.
  • This mechanism comprises a geared motor 16 comprising a double output pinion 17, each of which is engaged with a chain without end 18, 19.
  • the chain 18 is engaged with a wheel 22, integral with the shaft 20, while the chain 19 is engaged with a wheel 23 integral with the shaft 21.
  • the two series of rollers 4 forming the two parts sides 2 and 3 of the straightening conveyor are kinematically integral of the same shafts 20, 21, driven by the drive mechanism which has just been described.
  • Another drive mechanism of the central part 1, constituted by the pallet chain, comprises a second geared motor 24 a pinion integral with the output shaft 25 is engaged with a endless chain 26 intended to transmit the movement of this tree output 25 to a drive shaft 27 of the part's pallet chain central 1.
  • the pallets of the chain at pallets have two thinned side parts 1b which rest on two sliding bearings 28, in the form of Teflon® strips, by example, or metal bars coated with this material, fixed on a part of frame B of this device, underlying the upper strand of this pallet chain.
  • the level of the game central 1, which corresponds to the drive part of the conveyor rectifier is slightly higher than that of the side parts 2, 3, to ensure good contact with the stack of cardboard blanks P when this device is used in its mode of transport and not in that of rectifier, as well as allowing immobilization of the battery P when the device is used in its mode of rectification of the shape of this pile P.
  • this device corresponding to the implementation work of the method according to the invention consists in placing this device at the following a transport section whose length is such that it risks deformation of the battery which could endanger its stability.
  • the geared motor 24 is started and the central part raised 1, formed by the pallet chain drives the stack P by the part median of this stack which rests on this pallet chain.
  • the parts of this stack located on either side of this central part 1 rest on the lateral parts 2 and 3 of the conveyor, including the free rollers 4 can rotate by the friction of the base of the P-stack.
  • the part control unit 1 When all the stack P is on the straightening conveyor, the part control unit 1 is stopped and the gearmotor 16 is started to drive in translation the axes of the rollers 4 of the two parts lateral 2 and 3, these axes being integral with the chains 6, 7, respectively 8, 9 at their respective ends, in the same direction as that in advance of the P stack. These chains 6-9 rotate, while leaving the rollers 4 free to rotate on their respective axes 5.
  • a photocell for example, or other means of appropriate detection can detect when the P stack is rectified.
  • Figs. 5 and 6 illustrate another variant of the device which comes to be described, as well as a particular use of this variant.
  • the transporter formed by the pallet chain of the part central 1 of Figs. 1 to 4 does not exist.
  • friction pads 29, each associated with a bent lever 30, one of which end is hinged to this shoe 29 and the other end is engaged with the rod of a jack 31, while the bent part of this lever is articulated at frame B of the straightening conveyor device.
  • chains 6, 7 of part 2 of the transporter and the chains 8, 9 of its part 3 are not not integral with the same drive shafts 20 and 21, but with shafts independent drive 20a, 21a, respectively 20b, 21b, only the shafts 20a, 20b being visible in FIG. 6.
  • the trees 20a, 21a, on the one hand and the shafts 20b, 21b, on the other hand, are each secured to a mechanism independent training. Since these mechanisms are in all identical to mechanism 16-19 of the form of execution of Figs. 1-4, they are neither described nor represented again for this form execution. The consequence of this independence of the two parts 2 and 3 of the carrier is to allow them to train at speeds different for the purpose that will be explained later.
  • a stop mechanism illustrated in FIG. 5, is used to stop the P battery during the straightening operation.
  • This mechanism is located in the middle part where the chain was pallets from part 1 in the previous embodiment.
  • a stop 32 is integral with one end of a lever 33 articulated around an axis 34, integral with the frame B. The other end of this lever 33 is articulated to the rod 36 of a jack 35. In the position shown in solid lines on this Fig. 5, the stop 32 is brought by the lever 33 and the jack 35 in a position transverse to the path of the stack of cardboard blanks P.
  • the jacks 31 apply the pads 29 against the respective upper strands of the two roller chains 4 of the lateral parts 2 and 3 of the conveyor device rectifier. Once these pads are applied against the rollers 4, the drive mechanisms of chains 6, 7, respectively 8, 9, are started at the same speed, driving these chains and the rollers 4 which are integral therewith. Since at the same time the pads 29 are pressed against the rollers 4 of the upper strands, these rollers are no longer free as before, but they are driven in rotation by their translational movement relative to the pads 29 that are applied against them. Therefore, the battery P is driven on the straightening device.
  • the stop 32 is placed in the position illustrated in solid lines on Fig. 5, so that the battery P is stopped as soon as it encounters this stop 32.
  • the roller chains 4 are immobilized and the pads 29 are retracted so that the free rollers can now rotate around of their respective axes of rotation 5.
  • the roller chains are then restarted, but, since the rollers 4 have been released, they roll under the effect of their friction under the P pile, consecutive to displacement of their axes of rotation in translation in the direction in advance of stack P.
  • the cardboard cutouts of the bottom of the P stack that had shifted relative to the rest of the stack are gradually brought back under the P pile, which thus regains its shape initial parallelepiped.
  • the device according to FIGS. 5 and 6 can still have, in the central occupied part, in Figs. 1-4, by the pallet chain 1 and which is released in the variant of Figs. 5 and 6, a mechanism for changing the orientation of the batteries after having them restated.
  • This device comprises in its center a disc 37 with a vertical axis, integral with the rod of a jack 38.
  • This disc can occupy two positions corresponding to two different levels, one located below that upper strands of roller chains 4, the other located slightly above the level of the upper strands of these roller chains 4.
  • This upper level of disc 37 corresponds substantially to that of the strand upper of the pallet conveyor 1 of the embodiment of Figs. 1-4.
  • Two centering bars 39, integral with two cylinder rods respective 40 are arranged on either side of the transporter, above the upper strands of the roller chains 4 and share and on the other side of the displacement path of stack P. These bars of centering are used to position the stack exactly in the center of the width of the straightening conveyor. This is necessary so that when the P stack is lifted by the disc 37, it is well balanced on it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Claims (8)

  1. Verfahren zum Ausrichten eines durch seinen Transport auf einer Rollbahn unregelmässigen Stapels (P) von Bogenmaterial, wobei die Rollen (4) der Rollbahn auf parallelen und quer zur Transportrichtung des besagten Stapels (P) verlaufenden Drehachsen (5) angebracht sind, dadurch gekennzeichnet, dass der Stapel (P) an einer Stopfläche (1, 32) festgestellt wird, und dass die Achsen (5) der Rollen (4), auf welchen der Stapel (P) liegt, mit einer Parallelverschiebung in der Transportrichtung des Stapels (P) angetrieben werden, während die Rollen (4) frei um ihre jeweiligen Drehachsen (5) drehen können.
  2. Vorrichtung zum Ausrichten eines durch seinen Transport auf einer Rollbahn (4) unregelmässigen Stapels (P) von Bogenmaterial, wobei die Rollbahn parallele und quer zur Transportrichtung verlaufende Drehachsen (5) aufweist, dadurch gekennzeichnet, dass sie eine Stopfläche (1, 32) für den Stapel (P) und mindestens einen Zug mit Rollen (4) umfasst, welche um parallele und quer zum Transportweg des Stapels (P) auf dem Förderer verlaufenden Drehachsen (5) angebracht sind, wobei die jeweiligen Enden dieser Achsen (5) mit Kettengliederachsen von jeweils zwei Endlosketten (6, 7; 8, 9) verbunden sind, die auf Führungs- und Antriebsmitteln (10, 11; 12, 13; 16 - 23) angebracht sind, und eines ihrer Trumms unter dem Stapel (P) ist, wobei diese Antriebsmittel die besagten Rollen (4) des Trumms der besagten Kette unter dem besagten Stapel (P) in einer Parallelverschiebung in der durch den besagten Förderer dem Stapel (P) erteilten Vorwärtsrichtung bis zum Ausrichten des Letzteren bewegen.
  3. Vorrichtung gemäss Patentanspruch 2, dadurch gekennzeichnet, dass die besagte Stopfläche einen Anschlag (32) umfasst, der zwischen mindestens zwei Positionen beweglich ist, wobei er in der einen quer zum Verlauf des besagten Stapels (P) auf der Rollbahn (4) angeordnet, und in der anderen von diesem Verlauf zurückgezogen ist, sowie Mittel (33 - 36), welche diesen Anschlag (32) von der einen Position in die andere bewegen.
  4. Vorrichtung gemäss Patentanspruch 2, dadurch gekennzeichnet, dass die Stopfläche zwischen den Teilen von zwei Rollenzügen (4) angeordnet ist, wobei die Achsen (5) der Rollen (4) von jedem Zug mit den Kettengliederachsen von jeweils zwei Endlosketten (6, 7; 8, 9) verbunden sind, und die Trumms der Endlosketten (6, 7; 8, 9) unter dem Stapel (P) bilden, wobei diese Stopfläche aus einer angehobenen Fläche (1; 37) besteht, welche zwischen diesen zwei Rollenzügen (4) in der Mitte des Verlaufs des Stapels (P) angeordnet ist.
  5. Vorrichtung gemäss Patentanspruch 4, dadurch gekennzeichnet, dass die besagte Stopfläche aus einer Endlospalettenkette (1) besteht, die mit Antriebsmitteln (24 - 27) verbunden ist, welche von den Antriebsmitteln (16 - 23) der besagten Endlosketten (6, 7; 8, 9) unabhängig sind.
  6. Vorrichtung gemäss Patentanspruch 4, dadurch gekennzeichnet, dass sie Bremsmittel (29 - 31) umfasst, die mit den Rollen (4) in Eingriff kommen, welche sich in den Teilen der Rollenzüge (4) befinden, die mit den oberen Trumms der Endlosketten (6, 7; 8, 9) verbunden sind, so dass sie diese Rollen (4) um ihre jeweiligen Achsen (5) antreiben, wenn sie durch die besagten Ketten (6, 7; 8, 9) in Parallelverschiebung angetrieben werden.
  7. Vorrichtung gemäss Patentanspruch 4, dadurch gekennzeichnet, dass die Stopfläche (37) aus einer horizontalen Fläche besteht, die zwei vertikale Positionen einnehmen kann, eine Position über und die andere unter den oberen Teilen der Rollenzüge (4), wobei diese horizontale Fläche um eine vertikale Achse drehend angebracht ist.
  8. Gebrauch der Vorrichtung gemäss Patentansprüche 6 und 7 zum Drehen des besagten Stapels (P) von Kartonzuschnitten, dadurch gekennzeichnet, dass die besagte horizontale Stopfläche (37) über die oberen Teile der Rollenzüge (4) gebracht wird, und die Bremsmittel (29 - 31) so eingesetzt werden, dass die zwei Endloskettenpaare (6, 7; 8, 9) in zwei entgegengesetzten Richtungen angetrieben werden, so dass dem besagten Stapel (P) eine Drehung um die vertikale Drehachse der besagten horizontalen Stopfläche (37) auferlegt wird.
EP99102440A 1998-02-19 1999-02-09 Verfahren und Vorrichtung zum Ausrichten eines unregelmässigen Stapels von Blattmaterial auf einer Rollenbahn Expired - Lifetime EP0937671B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9802231A FR2774976B1 (fr) 1998-02-19 1998-02-19 Procede et dispositif pour redresser et/ou orienter une pile de materiau en feuilles deformee sur un transporteur a rouleaux
FR9802231 1998-02-19

Publications (2)

Publication Number Publication Date
EP0937671A1 EP0937671A1 (de) 1999-08-25
EP0937671B1 true EP0937671B1 (de) 2002-07-17

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EP99102440A Expired - Lifetime EP0937671B1 (de) 1998-02-19 1999-02-09 Verfahren und Vorrichtung zum Ausrichten eines unregelmässigen Stapels von Blattmaterial auf einer Rollenbahn

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Country Link
US (1) US6045322A (de)
EP (1) EP0937671B1 (de)
DE (1) DE69902110T2 (de)
ES (1) ES2180235T3 (de)
FR (1) FR2774976B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004060777A2 (en) * 2002-12-31 2004-07-22 Shuttleworth, Inc. Compression passing roller
CN103693489A (zh) * 2013-12-03 2014-04-02 安徽嘉隆印刷有限公司 一种瓦楞纸下料台

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225684A (en) * 1964-09-02 1965-12-28 Signode Corp Machine for tying bundles
US3894627A (en) * 1973-06-01 1975-07-15 Fmc Corp Conveyor for interspacing articles
AU511481B2 (en) * 1976-12-14 1980-08-21 Gerrard Wire Tying Machines Co. Bundle squaring machine
US4142625A (en) * 1977-12-02 1979-03-06 Bourgeois Ronald D Holding conveyor system
IT8135819V0 (it) * 1981-05-20 1981-05-20 Giampiero Giusti Impilatore automatico per pile difogli
JPH0763783B2 (ja) * 1988-07-07 1995-07-12 アイダエンジニアリング株式会社 ディスタックフィーダ
DE4000263A1 (de) * 1990-01-03 1991-07-04 System Gmbh Vorrichtung zum richten von stapeln
DE4437915C1 (de) * 1994-10-22 1996-05-15 Kodak Ag Vorrichtung zum kantengenauen Ausrichten von rechteckförmigen Papierblättern

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Publication number Publication date
ES2180235T3 (es) 2003-02-01
US6045322A (en) 2000-04-04
DE69902110T2 (de) 2003-02-06
DE69902110D1 (de) 2002-08-22
EP0937671A1 (de) 1999-08-25
FR2774976A1 (fr) 1999-08-20
FR2774976B1 (fr) 2000-04-14

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