EP0680906B1 - Barre de pinces et dispositif d'attache à un train de chaînes au sein d'une machine de traitement d'éléments en plaque - Google Patents

Barre de pinces et dispositif d'attache à un train de chaînes au sein d'une machine de traitement d'éléments en plaque Download PDF

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Publication number
EP0680906B1
EP0680906B1 EP95106521A EP95106521A EP0680906B1 EP 0680906 B1 EP0680906 B1 EP 0680906B1 EP 95106521 A EP95106521 A EP 95106521A EP 95106521 A EP95106521 A EP 95106521A EP 0680906 B1 EP0680906 B1 EP 0680906B1
Authority
EP
European Patent Office
Prior art keywords
bar
fastening device
chain
plates
grippers
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
EP95106521A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0680906A1 (fr
Inventor
Jean-Luc Gillieron
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
Application filed by Bobst SA filed Critical Bobst SA
Publication of EP0680906A1 publication Critical patent/EP0680906A1/fr
Application granted granted Critical
Publication of EP0680906B1 publication Critical patent/EP0680906B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H20/00—Advancing webs
    • B65H20/16—Advancing webs by web-gripping means, e.g. grippers, clips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/042—Intermediate conveyors, e.g. transferring devices
    • B65H29/044—Intermediate conveyors, e.g. transferring devices conveying through a machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/08—Combinations of endless conveyors and grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/085—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers by combinations of endless conveyors and grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/30—Chains
    • B65H2404/34—Gripper bars bridging at least two chains running synchronously and parallely
    • 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
    • B65H2801/00—Application field
    • B65H2801/42—Die-cutting

Definitions

  • the present invention relates to a gripper bar and its attachments to a chain of chains within a machine for processing plate elements such as sheets of paper or cardboard.
  • Such a machine usually comprises first of all an introduction station in which a stack of sheets is installed, each sheet being successively removed from the top of the stack to be sent to a margin table.
  • each sheet On this table, each sheet is placed in position against front and side cleats before being gripped at its front edge by a series of pliers mounted along a transverse bar, each end of which is attached to a train of side chains taking the bar, and therefore the sheet, to the following treatment stations.
  • the treatment stations can be a cutting press, the latter being followed by a waste ejection station.
  • These processing stations are followed by a receiving station in which each sheet released by the clamps is jogged before falling on top of an output stack.
  • the device for attaching the clamp bars to the two lateral chain trains must first be very solid in order to be able to transmit to the bars, and therefore to the sheets, the accelerating and decelerating forces which appear during an intermittent high cadence through successive stations.
  • the transverse clamp support bars are usually produced in often complicated profiles to also provide bending rigidity, which further complicates the construction of the fastening device.
  • This attachment device must, moreover, allow a certain "floating”, that is to say limited displacement of the bar relative to the chains of chains, in the direction of progression of the sheets so as to allow an ultimate adjustment by complementary means of the position of the sheet independently of the stop position of the chains in a processing station.
  • This fastening device must on the other hand ensure a rigidness in rotation about the axis passing through the chain to limit as much as possible the bending of the bar due to the centrifugal forces appearing during the movement of the chains and in particular during their passage around driving and driven chain wheels placed respectively at the front and at the rear of the circuit described by the chains.
  • Document EP-A-448 943 describes a fastening device according to the preamble of claim 1.
  • This fastening device comprises a first part called “fixed” forming an integral part of the chain of which it replaces one of the links, and a second part called “floating” connected to the bar and sliding in or on the first part of the fastener in the direction of movement of the sheets against the effect of elastic means such as springs.
  • One of the parts further comprises a finger parallel to the bar and sliding transversely in the other, this finger ensuring a rigidity of the attachment when the bar bends during its passage around the driving and driven chain wheels.
  • the object of the present invention is a device for attaching a bar to two trains of lateral chains capable of meeting the requirements of solidity, floating and control of centrifugal forces, but which is of simpler design, identical for each side, to reduce the production costs accordingly.
  • Such a device must also be able to be associated with clamp bars themselves of simpler design which can be dismantled without having to open the chain of chains.
  • a fastening device which is an integral part of the chain, of which it replaces one of the links, because it comprises an external external plate and an internal internal plate connected by an internal connector and capable of receiving between them an upstream axis and a downstream axis of chain links, each axis possibly being covered by a meshing cylinder, the plate internal being supplemented on its internal face with a female knuckle between the branches of which a transverse axis of connection of the bar can be inserted, the external and internal plates having a passage for a finger of rigidity protruding from the end of the bar.
  • the transverse connecting axis is integral with the bar and can slide in the branches of the knuckle of the fastener against the action of an elastic means, such as a spring, acting between one side of the knuckle and the axis head.
  • an elastic means such as a spring
  • the fastener is symmetrical with respect to a vertical plane passing through the clamp bar, the internal and external plates being connected by two connectors located, in the horizontal median plane, on each side of the central passage of the finger of the bar. . Because of this geometry, the same fastener can be used both on the driver side and on the side opposite to the driver.
  • the clamp bar is simplified into a solid bar extended in the middle of its two ends respectively by a finger of width between one third and two thirds of that of the bar, and of thickness substantially equal to two thirds of that from the bar.
  • each clamp comprises a lower jaw fixed against the upstream edge of the bar, and an upper jaw, in the form of a flexible blade, fixed against the downstream edge of the bar, passing over the upper face of the bar and extending beyond the lower jaw on each side.
  • the lower and upper jaws can in particular be fixed by the same bolt passing through the thickness of the bar.
  • the opening of the clamps is then simply carried out by a movable vertical comb, each tooth of which pushes an overhanging part of the upper jaw.
  • a bar of pliers 6 is connected at each of its ends by fasteners 10 to a drive chain composed of a succession of links 2.
  • Each link of the chain comprises two lateral plates 3 held apart by meshing cylinders 4 and connected by pins 5 internal to the cylinders.
  • a fastener 10 replacing one of the links 2 is in the general form of two vertical plates: an external 12 and an internal 14 connected by internal connectors 18. The upstream and downstream ends of these plates thus create two housings receiving respectively the last upstream and downstream link 2 of the chain.
  • the internal vertical plate 14 is in a substantially rectangular shape having a central passage 19.
  • this internal plate 14 is completed on its internal face by a knuckle 16 of which each of the upstream and downstream branches is pierced with a opposite cylindrical orifice provided to receive an axis 30.
  • the outer plate 12 is in the form of two clamps 20 for holding the last axes of the links 2 of the chain, these clamps being connected at the top and bottom by two bridges 22 also providing passage 19. Each clamp can be tightened by a bolt 21.
  • the faces of the bridges 22 oriented towards the passage 19 are reinforced by a bearing pad 24.
  • the fastener 10 is on the one hand symmetrical with respect to a vertical plane passing through the bar 6 and on the other hand symmetrical with respect to a horizontal plane passing through the middle of the chain of links 2.
  • the two connections 18 are located on either side of the passage 19 in the chain plane. It is the same for the female knuckle 16.
  • the bar 6, which is particularly compatible with the fastener 10, is here in the form of a solid bar, each end of which is extended by a finger 8 of width between one third and half the width of the bar 6; and of thickness, as seen in FIG. 3, substantially of the order of two thirds of the thickness of the bar.
  • the fingers 8 of the bar 6 are engaged in the passage 19 of their respective fastener 10, and the bar is fixed to these fasteners by the connecting axis 30 of the knuckle 16, this axis passing through the thickness of the bar.
  • the upstream end of the axis 30 has a sliding surface 32 inside its knuckle branch. This range ends with an enlarged head 34.
  • the downstream end of this axis 30 is threaded so as to receive a nut 39 which makes it possible to lock this axis 30 in the bar 6 between an upstream spacer washer 36 and a washer downstream 38 sliding in the other branch of the knuckle 16.
  • a spring is moreover housed between the upstream face of the knuckle and the head 34 of the axis.
  • the bar can make a slight movement to the left as illustrated in FIG. 1 and this against the compression of the spring 40.
  • This movement, or “floating”, allows an ultimate readjustment of the position of the bar relative to the link chain 2, and this acting directly on the heads 34. It will be noted that the pressing force for moving the bar to the left is rigorously located in the chain plane and therefore does not cause the bar to tilt. along its longitudinal axis.
  • the clamps 80 consist of a lower jaw 84 mounted against the upstream edge of the bar and an upper jaw 82 in the form of a flexible blade extending over the downstream edge of the bar, pressed against the upper face of the bar and projecting from the lower jaw 84 on each side.
  • the same clamp bolt 86 passing through the bar in its thickness makes it possible to fix the two jaws: the head of the bolt clamping the upper jaw against the downstream edge, the threaded part penetrating into a tapped orifice corresponding to the lower jaw.
  • the protruding parts of the upper jaws allow them to be opened simply by the vertical thrust applied by the teeth of an underlying comb.
  • a feedback is provided in the form of the support of one or more upper rollers, in particular on tracks 7 specially provided on the upper face of the bar 6.
  • the length of the finger 8 as taken between the connecting axis 30 (pivot point in deflection when passing around the chain wheels at the end of the chain path) and the outer end of the finger caught between the pads 24 ensures a significant feedback to the centrifugal forces applied to the bar.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Chain Conveyers (AREA)
  • Discharge By Other Means (AREA)
  • Clamps And Clips (AREA)
  • Advancing Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Toys (AREA)
  • Feeding Of Workpieces (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP95106521A 1994-05-04 1995-04-29 Barre de pinces et dispositif d'attache à un train de chaînes au sein d'une machine de traitement d'éléments en plaque Expired - Lifetime EP0680906B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1397/94 1994-05-04
CH01397/94A CH690098A5 (fr) 1994-05-04 1994-05-04 Barre de pinces comportant un dispositif d'attache à un train de chaînes au sein d'une machine de traitement d'éléments en plaque.

Publications (2)

Publication Number Publication Date
EP0680906A1 EP0680906A1 (fr) 1995-11-08
EP0680906B1 true EP0680906B1 (fr) 1997-05-28

Family

ID=4209479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95106521A Expired - Lifetime EP0680906B1 (fr) 1994-05-04 1995-04-29 Barre de pinces et dispositif d'attache à un train de chaînes au sein d'une machine de traitement d'éléments en plaque

Country Status (12)

Country Link
US (1) US5562279A (ja)
EP (1) EP0680906B1 (ja)
JP (1) JP2551741B2 (ja)
KR (1) KR0157190B1 (ja)
CN (1) CN1059401C (ja)
AT (1) ATE153627T1 (ja)
AU (1) AU687169B2 (ja)
BR (1) BR9501882A (ja)
CH (1) CH690098A5 (ja)
DE (1) DE69500322T2 (ja)
ES (1) ES2102900T3 (ja)
TW (1) TW301642B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012038035A1 (fr) 2010-09-22 2012-03-29 Bobst Sa Machine de traitement d'elements en feuilles comprenant un tendeur de trains de chaines

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6786482B2 (en) * 2001-02-01 2004-09-07 Hallmark Cards Incorporated Material handler apparatus
US6571936B1 (en) * 2002-04-30 2003-06-03 Joy M M Delaware, Inc Chain and flight conveyor
ATE319640T1 (de) * 2003-10-07 2006-03-15 Bobst Sa Arbeitsstation einer umwandlungsmaschine für plattenförmige elemente
TWI261042B (en) * 2003-10-08 2006-09-01 Bobst Sa Working station of a machine processing plate elements
DE102007007240A1 (de) * 2007-02-14 2008-08-21 Koenig & Bauer Aktiengesellschaft Vorrichtung zum Transport von Bogen in einer Druckmaschine
EP2456698B1 (fr) 2009-07-24 2015-03-11 Bobst Mex Sa Dispositif et procede de positionnement d'elements en plaque dans une machine de traitement
CN103358679A (zh) * 2013-05-10 2013-10-23 天津长荣印刷设备股份有限公司 一种牙片结构及其工作方法
CN104401777B (zh) * 2014-11-05 2016-09-28 深圳辰通智能股份有限公司 一种纸张收集装置
CA3016244C (fr) 2016-03-09 2020-05-12 Bobst Mex Sa Ejector member and machine for processing sheet-form elements
CN106183394A (zh) * 2016-07-07 2016-12-07 天津长荣印刷设备股份有限公司 一种机组式模烫机的精准定位装置及其工作方法
CN108082985A (zh) * 2018-01-31 2018-05-29 浙江唐艺织物整理有限公司 一种织物后整理设备的自动穿布装置
CN109733064B (zh) * 2018-12-29 2020-08-25 重庆朝旭印务有限公司 一种印后加工设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR565088A (fr) * 1923-04-13 1924-01-18 Perfectionnements aux presses rotatives pour l'impression polychrome
GB304032A (en) * 1928-01-21 1929-01-17 Linotype Machinery Ltd Improvements relating to sheet-fed printing machines and sheet-conveying mechanism therefor
GB574187A (en) * 1944-01-12 1945-12-27 Sydney Needham Smith Agricultural elevator and similar tine chains
FR1094423A (fr) * 1953-11-18 1955-05-20 Tech Pour L Ind Miniere Soc Perfectionnements aux convoyeurs à raclettes
US2954864A (en) * 1957-10-21 1960-10-04 Consolidation Coal Co Flight conveyor
US3089579A (en) * 1960-06-08 1963-05-14 Goodman Mfg Co Composite flight
US3809390A (en) * 1972-01-12 1974-05-07 Miller Printing Machinery Co Sheet gripper apparatus for a cutting and creasing press
DE3502663C1 (de) * 1985-01-26 1986-06-05 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Kettenfoerderer fuer den Ausleger von Druckmaschinen
US5000310A (en) * 1989-06-16 1991-03-19 Joy Technologies Inc. Chain and flight conveyor
CH681885A5 (ja) * 1990-03-24 1993-06-15 Bobst Sa

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012038035A1 (fr) 2010-09-22 2012-03-29 Bobst Sa Machine de traitement d'elements en feuilles comprenant un tendeur de trains de chaines

Also Published As

Publication number Publication date
BR9501882A (pt) 1995-11-28
JPH08143124A (ja) 1996-06-04
EP0680906A1 (fr) 1995-11-08
AU687169B2 (en) 1998-02-19
JP2551741B2 (ja) 1996-11-06
KR0157190B1 (ko) 1999-02-18
TW301642B (ja) 1997-04-01
ATE153627T1 (de) 1997-06-15
DE69500322T2 (de) 1997-12-04
KR950031837A (ko) 1995-12-20
CN1121036A (zh) 1996-04-24
US5562279A (en) 1996-10-08
CN1059401C (zh) 2000-12-13
ES2102900T3 (es) 1997-08-01
DE69500322D1 (de) 1997-07-03
CH690098A5 (fr) 2000-04-28
AU1776495A (en) 1995-11-09

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