EP0610791B1 - Vorrichtung zum Ausrichten von Schachtelzuschnitten in einer Maschine zu ihrer Bearbeitung - Google Patents

Vorrichtung zum Ausrichten von Schachtelzuschnitten in einer Maschine zu ihrer Bearbeitung Download PDF

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Publication number
EP0610791B1
EP0610791B1 EP94101540A EP94101540A EP0610791B1 EP 0610791 B1 EP0610791 B1 EP 0610791B1 EP 94101540 A EP94101540 A EP 94101540A EP 94101540 A EP94101540 A EP 94101540A EP 0610791 B1 EP0610791 B1 EP 0610791B1
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EP
European Patent Office
Prior art keywords
fitted
rollers
lengthwise
lengthwise beam
vertical
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
EP94101540A
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English (en)
French (fr)
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EP0610791A1 (de
Inventor
Jacques Reymond
Jean-Louis Wenger
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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
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Application filed by Bobst SA filed Critical Bobst SA
Publication of EP0610791A1 publication Critical patent/EP0610791A1/de
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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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/16—Inclined tape, roller, or like article-forwarding side registers
    • B65H9/163—Tape
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/044—Feeding sheets or blanks involving aligning
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/10—Feeding or positioning webs
    • B31B50/104—Feeding or positioning webs involving aligning

Definitions

  • the present invention relates to a device for aligning cutouts of boxes in a machine working them, in particular in a folder-gluer, according to the preamble of claim 1.
  • a folder-gluer is a machine in which one takes the box cutouts, one by one from the bottom of a pile, and which is then transported through different folding and / or gluing sections using belt conveyors, to receive them "folded flat” and glued in a terminal station.
  • these operations can be the following: pre-crushing of the first and third folds of the cut with reopening of the latter so as to present it "flat” in the following section, gluing, folding along its second and fourth folds, pressing and ejection at the outlet of which each folded cut is stacked in a final receiving section.
  • lower and upper belt conveyors are used in combination as well as, in certain cases, the combination of one or more lower belt conveyors with upper ramps of pressure rollers.
  • the introducer usually consists of a lower conveyor with associated multiple belts, on the one hand, to a frontal gauge creating with these conveyor belts a space just sufficient to let pass only one cut at a time and, on the other hand, to side positioning cheeks adjustable according to the format of these cuts to introduce.
  • the sequential feeding of the blanks can then be obtained by means of members acting so as to close, partially and momentarily, the space existing between the conveyor belts and the lower end of the front gauge, thereby preventing the start of the lower cutout of the stack placed in the introducer.
  • the drive of the cut to be introduced results from the fact that the adhesion between its lower face and the conveyor belts is much greater than the friction of its upper face against the next cut in the stack.
  • the fouling of the belts can induce differences in grip, therefore an imbalance of the friction forces over the width, which has the effect of introducing the cross cut into the machine, thereby making it very random. its subsequent correct folding according to the desired fold lines.
  • One of the known alignment correction devices comprises a series of lower and upper rollers staggered respectively on a lower beam and an upper beam which can be moved away, one of the other, so as to take into account the thickness of the pass-through cutout.
  • the rollers of each of the upper and lower beams are driven by means of a single flat belt transmitting its movement via pulleys mounted on the axes of each rollers.
  • the device making it possible to move the beams apart from one another further comprises a device ensuring permanent and variable pressure of the upper rollers on the upper face of the blank.
  • the upper and lower beams are, on the other hand, arranged at a defined and invariable angle relative to the longitudinal axis of the machine.
  • the device further comprises a longitudinal guide rail. Due to the angle of the beams, the action of the rollers on one of the sides of a cutout causes, during movement, the application of the edge against the longitudinal guide rail, therefore a squaring, which has the effect of bringing this cut into a position such that its fold lines are perfectly parallel to the longitudinal axis of the machine.
  • Document CH 678 707 describes another device for aligning box cutouts comprising a movable longitudinal guide rail, a lower endless belt driven and supported by rollers, and a series of upper rollers, each mounted at the end of a lever pivoting in a vertical plane, this lever itself being integral with a support pivoting in a horizontal plane.
  • the end of each horizontal lever axis is equipped with a flexible member integral with an angle displaceable in a horizontal plane with respect to a fixed spar in which the pivot points of the supports are arranged, this fixed spar being integral with a machine bracket.
  • the pressure of the upper rollers is adjusted by means of first springs placed between the pivoting levers and guide rods fixed in a ramp, itself secured to the fixed spar by second springs surrounding a threaded adjustment rod screwed in this spar.
  • this device is, on the other hand, particularly expensive to produce because it involves, for each roller associated with its lever, an individual pivoting support, a flexible member completing each horizontal axis of rotation, as well as a special angle movable in a horizontal plane to force the simultaneous pivoting of the levers.
  • the device comprises an endless lower margin belt extending longitudinally with respect to a margin table.
  • the upper plane of the margin belt is located in the same plane as the other members, such as transverse rollers, longitudinal guides and lateral stop, of the device.
  • the margin belt can be moved angularly with respect to the lateral stop and it is mounted on a carriage that can be moved laterally.
  • this device has drawbacks such as for example a random adjustment of the force of support of the sheets against the lateral stop due to the fact of the difficulty of adjusting precisely the force of support of the upper rollers maintaining contact. between the sheet and the margin belt.
  • the object of the present invention is a device for aligning box cutouts ensuring perfect, repetitive squaring, and this with an easily adjustable force, see automatically, when switching from one type of cut to another. Above all, the structure must be comparatively simpler to allow construction at a reasonable price.
  • a device which comprises a longitudinal guide rail mounted on a fixed part of the frame, a lower conveyor mounted on a lower spar, and, in correspondence, an upper conveyor secured by means adjustable to an upper spar integral with a bracket, in that the upper spar of the upper conveyor is connected by the bracket directly to the lower spar of the lower conveyor, and in that the outlet end of the lower spar is mounted, pivoting in a horizontal plane, at a fixed part of the frame close to the guide rail, the entry end of the lower spar being able to be moved away from the guide rail by a predetermined value by mechanical or electromechanical means.
  • the lower conveyor consists of an endless belt supported by lower rollers
  • the upper conveyor consists of a series of upper rollers mounted at the end of levers pivoting in a vertical plane, the other end of which is mounted in a ramp itself fixed by means adjustable to the upper spar, the rollers being in vertical correspondence with the lower rollers.
  • a lever can carry a longitudinal pair of rollers.
  • the belt is driven by a driving pulley and tensioned by a tensioning pulley subjected to the action of elastic means, both mounted on a neighboring vertical base plate, which belt is twisted twice by half a turn by guide pulleys to present a vertical part once at the entry and a second time at the exit of the lower beam movable in rotation.
  • the pressure of the upper rollers is carried out, on the one hand, by means of helical springs placed between the pivoting levers and guide rods fixed in the ramp, or by means of vertical flat springs wound around the horizontal axis. pivoting of the lever, one of the branches acting on the upper face of the lever and the other branch acting against an internal wall of the ramp, and, on the other hand, by means of an assembly constituted by a threaded rod of adjustment screwed into the ramp and secured to the side member by means of a pair of knurled chickens engaged on said rod.
  • the basic fixed structure of the device comprises a vertical plate 10 integral with the frame of the section, a plate the upper part of which carries a spar 12 on which is attached a longitudinal guide rail 14 by means of screws not shown allowing a certain lateral adjustment.
  • a lower spar 30 movable in rotation about a pivot 16 at its end called “outlet”, that is to say the left end as illustrated in FIG. 1, and supported along its length by one or more lateral crosspieces with the underlying spar, not shown but integral with the vertical plate 10.
  • the so-called “inlet” end therefore located on the right part of the figure 1 and visible in FIG. 2, can be moved at will transversely by a screw 56 retained in the vertical plate 10 and engaged in a threaded ring 55 belonging to an extension plate 33 of the spar 30.
  • the screw device 56 and threaded ring 55 therefore making it possible to separate the inlet end of the lower beam 30 from the vertical plate 10, therefore from the guide rail 14, can advantageously be replaced by any other pneumatic or electromechanical actuator.
  • the top of the spar 30 carries a lower belt conveyor composed of a path of lower rollers 35 held by two lateral cheeks 34 and, over which passes an endless belt 20.
  • a drive pulley 26 with its two associated deflection pulleys 27 as well as a tensioning pulley 24 associated with its two deflection pulleys 23 and its tensioning device 25 are both mounted on the base plate 10 underlying the lower beam 30.
  • the tensioning means 25 can be either a spring or a gas or hydraulic shock absorber whose upper fulcrum is adjustable in height.
  • the endless flat belt 20 enters the upper roller path 35 by a pulley 36, leaves this path by an output pulley 37 orienting it downwards where it is directed towards a lower return pulley 38 to then carry out a first half-turn spin guided in this by a pair of pulleys 28 integral with the base plate 10.
  • This pair of pulleys 28 secures the belt firmly at the level of this plate allowing it to be directed directly towards the return pulleys 27 of the drive pulley 26, then in the tensioning device consisting of pulleys 23 and 24 at the outlet of which it performs a second twist of a half-turn guided in this by a first pair of vertical pulleys 21 mounted by supports 22 to the base plate 10 and a second pair of vertical pulleys 31 mounted by supports 32 to the extension plate 33 of the lower beam 30, the belt 20 being finally brought back towards the pulley 36 by the lower return pulley 39.
  • the device according to the invention then comprises an upper conveyor with rollers maintained in rigorous correspondence with the lower conveyor with belt.
  • the upper conveyor is suspended from a pair of brackets 50 whose horizontal bases 52 are directly connected to the lower side members 30 of the lower conveyor, thus automatically following the rotational movement as clearly visible in FIG. 3 (double arrow 60) .
  • the upper conveyor comprises a series of longitudinal pairs of rollers 40, each pair being held by a lever 41 movable in rotation in a vertical plane.
  • the upper axis of each lever is held by a horizontal transverse axis in a ramp 42.
  • Each lever 41 is folded elastically downwards by a support spring 48 which, in the example illustrated, is in the form of a double or triple winding terminated on either side by two branches which can therefore work elastically in rotation.
  • These springs are therefore installed vertically either around the axis of the lever or around a neighboring transverse axis, a first branch pressing on the upper face of the lever, the other branch pressing on an upper internal wall of the ramp.
  • the ramp 42 is itself subject to an upper beam 43 by means allowing its height adjustment.
  • this ramp is clamped against the upper spar by a rotating handle 47.
  • Two threaded rods are screwed permanently into the upper face of the ramp 42 and pass through the upper spar 43 where they are held in place and other by a pair of knurled chickens 49.
  • the height adjustment is therefore carried out by screwing or unscrewing these knurled chickens along their respective filtered rod. Locking in the adjusted position occurs by tightening these two knurled chickens against the upper wing of the spar 43 and then by tightening the revolving handles 47.
  • the upper spar 43 is itself held by means of a stirrup 45 with devices lever 46 whose upper end is secured to the bracket 50. This device 46 allows, by action on a handle, to release upward the upper conveyor to release cuts stuck during a jam.
  • the operator can adjust, on the one hand, the angle between the guide rail and the upper and lower conveyors coupled by actuating the screw 56 and, on the other share the pressure exerted by the upper rollers 40 by releasing the rotary handles 47 and by acting on the knurled chickens 49 engaged on the threaded rods 44, and this as a function of the quality of the cuts. He can thus opt either for a low angle and a strong pressure for cartons supporting it, or conversely, a wide angle and a low pressure for delicate cuts, for example, having impressions on one of the faces.
  • a cut arriving at an angle will be guided by the combination of the lower and upper conveyors with a lateral component until it abuts against the guide rail 14 where it will automatically square, this guide rail compensating by the following the lateral force of the carriers then subjecting the cutout to a slight friction force.

Landscapes

  • Making Paper Articles (AREA)
  • Soil Working Implements (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)
  • Details Of Cutting Devices (AREA)
  • Tyre Moulding (AREA)
  • Specific Conveyance Elements (AREA)

Claims (5)

  1. Vorrichtung zum Ausrichten von Schachtelzuschnitten in einer dieselben verarbeitenden Maschine mit einer Längsführungsschiene (14) an einem festen Teil des Maschinengestells (10,12), einer unteren an einer unteren Rollenstrecke (30) angebrachten Transportvorrichtung und einer entsprechenden oberen Transportvorrichtung, die durch regulierbare Mittel (44, 47) an einer oberen Rollenstrecke (43) in fester Verbindung mit einem Ausleger (50) befestigt ist, wobei das Ausgangsende der unteren Rollenstrecke (30) drehbar (16) in einer horizontalen Ebene an einem festen Teil des Maschinengestells (10) in der Nähe der Führungsschiene befestigt ist, wobei das Eingangsende der unteren Rollenstrecke von der Führungsschiene mit Hilfe von mechanischen oder elektromechanischen Mitteln (55, 56) um einen vorbestimmten Wert abgesetzt werden kann, dadurch gekennzeichnet, dass die obere Rollenstrecke der oberen Transportvorrichtung durch den Ausleger unmittelbar mit der unteren Rollenstrecke der unteren Transportvorrichtung verbunden ist.
  2. Vorrichtung gemäss Patentanspruch 1, dadurch gekennzeichnet, dass die untere Transportvorrichtung einen durch untere Laufrollen (35) abgestützten Endlosriemen (20) umfasst, während ergänzend dazu die obere Transportvorrichtung eine Reihe oberer Laufrollen (40) am Ende von in einer Vertikalebene drehbaren Hebeln (41) umfasst, deren anderes Ende an einer Rampe (42) angebracht ist, die ihrerseits mit regulierbaren Mitteln (44, 45, 46, 47) an der oberen Rollenstrecke (43) befestigt ist, wobei die oberen Laufrollen vertikal den unteren Laufrollen entsprechen.
  3. Vorrichtung gemäss Patentanspruch 2, dadurch gekennzeichnet, dass jeder Hebel (41) ein Längspaar Laufrollen (40) trägt.
  4. Vorrichtung gemäss Patentanspruch 2, dadurch gekennzeichnet, dass der Riemen (20) durch eine Treibriemenscheibe (26) bewegt und durch eine Spannriemenscheibe (24) gespannt wird, welch letztere der Einwirkung von elastischen Mitteln (25) unterworfen ist, wobei die besagten Riemenscheiben an einer benachbarten vertikalen Grundplatte (10) angebracht sind, in der Weise, dass der besagte Riemen durch Führungsriemenscheiben (21/31 28/38) zweimal um eine halbe Drehung gewendet wird, um einen Teil zuerst am Eingang und hierauf am Ausgang der unteren drehbar beweglichen Rollenstrecke (30) vertikal hochzustellen.
  5. Vorrichtung gemäss einem der vorgenannten Patentansprüche, dadurch gekennzeichnet, dass der Druck der oberen Laufrollen (40) auf den Zuschnitt einerseits mittels vertikaler um eine horizontale Hebeldrehachse gerollten Flachfedern (48) erfolgt, wobei einer der Arme auf die Oberseite des Hebels und der andere auf eine Innenseite der Rampe einwirkt, und andererseits mittels einer Einheit aus einer Reguliergewindestange (44), die in die Rampe (42) eingeschraubt und mittels eines Rändelknopfpaares (49) an der besagten Stange an der Rollenstrecke (43) befestigt ist.
EP94101540A 1993-02-09 1994-02-02 Vorrichtung zum Ausrichten von Schachtelzuschnitten in einer Maschine zu ihrer Bearbeitung Expired - Lifetime EP0610791B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH387/93 1993-02-09
CH00387/93A CH687915A5 (fr) 1993-02-09 1993-02-09 Dispositif pour aligner des découpes de boîtes dans une machine les travaillant.

Publications (2)

Publication Number Publication Date
EP0610791A1 EP0610791A1 (de) 1994-08-17
EP0610791B1 true EP0610791B1 (de) 1997-07-30

Family

ID=4185846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94101540A Expired - Lifetime EP0610791B1 (de) 1993-02-09 1994-02-02 Vorrichtung zum Ausrichten von Schachtelzuschnitten in einer Maschine zu ihrer Bearbeitung

Country Status (11)

Country Link
US (1) US5413327A (de)
EP (1) EP0610791B1 (de)
JP (1) JP2563159B2 (de)
KR (1) KR0136243B1 (de)
CN (1) CN1064901C (de)
AT (1) ATE156061T1 (de)
BR (1) BR9400468A (de)
CA (1) CA2114608C (de)
CH (1) CH687915A5 (de)
DE (1) DE69404493T2 (de)
ES (1) ES2105365T3 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19839314B4 (de) * 1998-02-18 2007-03-01 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zum Transport von Bogen mittels mindestens eines Transportbandes, an welchem die Bogen auf dem Transportweg fixiert werden
DE19828819A1 (de) * 1998-06-04 1999-12-09 Jagenberg Diana Gmbh Faltschachtelklebemaschine zur Herstellung von Faltschachteln aus Zuschnitten
ITTO20021038A1 (it) * 2002-11-29 2004-05-30 Petratto S R L Macchina di formatura per la realizzazione di articoli
ES2255808B1 (es) * 2004-04-20 2007-06-01 Inramik, S.L. Modulo de registro para maquinas plegadoras encoladoras de elementos laminares y similares.
TWI249467B (en) * 2004-04-21 2006-02-21 Bobst Sa Device for aligning plate-like workpieces in a machine processing them
EP1588966B1 (de) 2004-04-21 2007-01-03 Bobst S.A. Vorrichtung zum Ausrichten von plattenförmigen Elementen in einer Maschine zu ihrer Bearbeitung
EP1886765A1 (de) * 2007-08-01 2008-02-13 Kama GmbH Werkzeugträgereinrichtung und Vorrichtung zur Verarbeitung flacher Zuschnitte
CN101759048B (zh) * 2009-05-11 2013-10-16 天津长荣印刷设备股份有限公司 一种用于印刷机械的纠偏装置及其工作方法
KR101473067B1 (ko) * 2009-12-17 2014-12-15 봅스트 맥스 에스에이 가공 장치와 이러한 장치를 포함한 폴딩 및 글루잉 기계
CN105584094B (zh) * 2014-10-20 2018-04-06 深圳市裕同包装科技股份有限公司 用于包装盒加工的灰板盒胚自动成型装置
GB2538651B (en) * 2015-03-05 2021-03-24 Ace Machinery Co Ltd Blank feeding / processing apparatus

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
US2190416A (en) * 1938-06-04 1940-02-13 Davidson Mfg Corp Folding machine
GB1218545A (en) * 1967-04-10 1971-01-06 Camco Machinery Ltd Improvements in or relating to paper-sheet conveying mechanisms
US3709484A (en) * 1970-09-14 1973-01-09 H Kistner Sheet feeding and aligning table
US4163550A (en) * 1977-08-10 1979-08-07 Am International, Inc. Pressure roller assembly
US4836527A (en) * 1988-04-18 1989-06-06 Xerox Corporation Side edge registration system
CH678707A5 (de) * 1989-02-09 1991-10-31 Bobst Sa

Also Published As

Publication number Publication date
JPH06246850A (ja) 1994-09-06
CA2114608A1 (en) 1994-08-10
DE69404493D1 (de) 1997-09-04
KR0136243B1 (ko) 1998-04-28
DE69404493T2 (de) 1998-03-05
EP0610791A1 (de) 1994-08-17
JP2563159B2 (ja) 1996-12-11
CN1064901C (zh) 2001-04-25
CN1092718A (zh) 1994-09-28
KR940019460A (ko) 1994-09-14
CA2114608C (en) 1997-08-19
CH687915A5 (fr) 1997-03-27
ATE156061T1 (de) 1997-08-15
BR9400468A (pt) 1996-08-27
ES2105365T3 (es) 1997-10-16
US5413327A (en) 1995-05-09

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