US20050077673A1 - Working station of a machine processing plate elements - Google Patents

Working station of a machine processing plate elements Download PDF

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Publication number
US20050077673A1
US20050077673A1 US10/960,307 US96030704A US2005077673A1 US 20050077673 A1 US20050077673 A1 US 20050077673A1 US 96030704 A US96030704 A US 96030704A US 2005077673 A1 US2005077673 A1 US 2005077673A1
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US
United States
Prior art keywords
gripper bar
cam
working
cam sensor
axle
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.)
Abandoned
Application number
US10/960,307
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English (en)
Inventor
Eric Pache
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
Assigned to BOBST S.A. reassignment BOBST S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PACHE, ERIC
Publication of US20050077673A1 publication Critical patent/US20050077673A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • 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
    • B65H29/08—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 oscillated in arcuate paths
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1818—Means for removing cut-out material or waste by pushing out
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/50—Driving mechanisms
    • B65H2403/51—Cam mechanisms
    • 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
    • B65H2701/173—Metal
    • 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 refers to a working station of a machine which processes plate elements, for example a waste stripping station of a sheet diecut into a platen press, and particularly to a redirecting guide for deflecting the sheet.
  • the machine comprises a frame, a working tool, for example a stripping plate, on which the sheet must be laid, a transverse gripper bar for seizing the leading edge of the sheet, two spaced apart flexible drive devices shaped like endless loops, e.g., chains, each fixedly attached to one end of the gripper bar, means, e.g., sprockets for guiding the flexible drive devices on the frame and means for bringing the gripper bar closer to the working tool when the gripper bar crosses the downstream end of the working tool.
  • a working tool for example a stripping plate
  • transverse gripper bar for seizing the leading edge of the sheet
  • two spaced apart flexible drive devices shaped like endless loops, e.g., chains each fixedly attached to one end of the gripper bar
  • means e.g., sprockets for guiding the flexible drive devices on the frame and means for bringing the gripper bar closer to the working tool when the gripper bar crosses the downstream end of the working tool.
  • the length of the cam is thus limited by the one of the fastening device connecting the gripper bar to the chains having a length that is limited by the diameter of the sprocket wheels, because the acceleration of the gripper bar is very important. If the acceleration is tolerable with reference to thick cardboard sheets, namely with corrugated board, it is not tolerable for thinner and thus more delicate sheets. Since the drive chains of the gripper bars are shaped as endless loops rotating about the wheels, it is not possible to increase the length of these cams, as the cams cannot thus be longer than the chain links.
  • One known solution also proposes to bend the gripper bar trajectory via the chain guides shape, for bringing the gripper bar downwards to its stop end in relation to the area where the grippers of the gripper bar are at the front end of the working tool.
  • Such a solution may cause a fault when usually guiding the chains, forcing the chains to follow the bent trajectory, not only when the gripper bar reaches its stop end at a low speed, even near to zero, but also during the whole end of the sheets traveling cycle at high speed, obviously causing wear and vibration problems.
  • the aim of the present invention is to obviate, at least partly, the drawbacks of the above-mentioned solutions.
  • this invention concerns a working station of a machine for processing plate-like elements.
  • Each plate-like elements has a front end.
  • the machine includes a frame.
  • a working tool is supported on the frame.
  • the working tool has a trailing end in a feed direction of the plate-like elements.
  • a transverse gripper bar extending across the working station has at least one gripper for seizing the leading edge of the sheet.
  • transverse link axle connected with the flexible drive, another link axle rearward of the first link axle and connected to a cam sensor or cam follower and a lever arm between them.
  • a cam on the frame contacts the cam sensor as the gripper bar passes the end of the working station and urges the cam sensor, the lever arm and the gripper bar to swivel down toward the working tool.
  • the swiveling around the front link axle temporarily brings the gripper bar and the leading edge of the sheet downward to the working tool.
  • the cam sensor and the gripper bar are urged upwardly off the working surface.
  • the moving masses are relatively weak. Since the lowering cam of the gripper bar is mounted on the frame of the platen press and is not mounted between two chain links, this enables appreciably increasing the length of the cam, because its length is no longer dependent on the chain link length, and that also enables reducing accelerations.
  • the working station according to the invention can thus be used for processing thinner and less inflexible sheets than those sheets that were processed according to the prior art.
  • Another advantage of the invention is its simplicity, which improves reliability. As noted from the following description, fitting of the devices of the working station is accurate and easy to carry out.
  • FIG. 1 is a sectional view of the invention along the line I-I of FIG. 3 ;
  • FIG. 2 is a cross-sectional and elevational view along the line II-II of FIG. 1 .
  • FIG. 3 is a top view along the line III-III of FIG. 1 .
  • displacement of the gripper bar is shown by the arrow F.
  • the invention particularly relates to delivering the processed sheets onto the working tool, namely the stripping plate, and does not relate to the stripping operation itself, the waste stripping and the means used for that stripping are not described or illustrated.
  • the mechanism of a stripping device according to the invention is symmetrically arranged with respect to a longitudinal median axle of the platen press to which the stripping device is related, and that axle corresponds to the conveying direction F of the diecut sheets, only one side of the working station is shown in the drawing and is described below.
  • the working station illustrated in FIGS. 1 to 3 comprises the following elements.
  • a transverse gripper bar 2 is equipped with grippers 3 for seizing the leading edge of the sheets to be processed (not shown).
  • Each end of the gripper bar is connected to an endless, loop type, drive chain 4 by two front link axles 5 and rear link axle 6 of the drive chain 4 .
  • Each axle is fixedly attached to a fastening piece 7 that extends on both sides of the drive chain 4 .
  • the two axles 5 , 6 are mounted at both ends of the drive chain 4 .
  • the axles 5 , 6 are connected to one another by the fastening piece 7 thereby forming part of an endless loop.
  • Each drive chain 4 is supported on a chain guide 8 and also wraps commonly two sprocket wheels (not shown) for that kind of machine.
  • the drive chains 4 on which a certain tension is imparted maintain the front 5 and rear 6 link axles within an alignment with other chain links of the drive chains 4 .
  • the chains thus also are intended as pull-back means for maintaining the gripper bar 2 at an angular determined position with respect to the front 5 and rear 6 link axles.
  • the chain guide 8 comprises a short lowering ramp 8 a followed by a break of a selected length. After the end of the break, the chain guide 8 restarts with a short raising ramp 8 b.
  • a lowering cam 10 of the gripper bar 2 is located opposite or above the break of the chain guide 8 .
  • the cam 10 is fastened to the frame 1 by screws 11 .
  • the upper edge of the cam 10 is under a projecting part 1 a of the frame 1 ( FIGS. 1 and 2 ).
  • a sensor roller 12 is like a cam follower and is fixedly attached to the gripper bar 2 , preferably at each end of the gripper bar 2 . That roller 12 is arranged in the vicinity of the rear link axle 6 of the drive chain 4 , which connects the axle and the roller to the fastening piece 7 . The piece 7 is arranged near the grippers 3 of the gripper bar 2 and the sensor roller 12 .
  • the cam 10 When the cam 10 is pivoting the rear edge of the gripper bar 2 , it causes an overload of the drive chains 4 , while the gripper bar 2 continues its displacement into the direction of arrow F.
  • the sensor roller 12 follows the lower edge of the cam 10 , enabling the rear pivoting axle 6 to rise, and the roller 12 then meets the raising ramp 8 b of the chain guide 8 that is driving the two link axles 5 , 6 between the gripper bar 2 and the drive chains 4 arranged at both ends of the gripper bar 2 .
  • the linear cam 10 having a length in the direction F that is not limited by the driving chain links, enables limiting the acceleration of the gripper bar 2 driving its swinging motion about the front axle 5 .
  • This lengthening of the travel length of the gripper bar 2 during its lowering combines with the fact that the space between the link axles 5 and 6 connecting the drive chains 4 to the gripper bar 2 is slightly greater than the length of one link of these chains 4 . Together, these increase the swivelling radius of the movable axle 6 about the fixed axle 5 that is supporting on the chain guide 8 .
  • the means used for achieving the result are particularly simple for manufacture and for machine use and are slightly more simple than most solutions for bringing the diecut sheets onto the stripping plate.
  • the invention as contrasted with a solution using movable cams fixedly attached to the drive chains, is simpler and also enables reducing the accelerations imparted to the gripper bar. This would not be possible if the cam length were limited by the space between the axles of the links of the drive chain 4 .
  • the invention enables slightly increasing the time duration of the gripper bar lowering due to the appreciable increase in the length of the cam 10 with respect to cams that might be fixedly attached to the drive chains and to the fact that the space between the link axles front 5 and rear 6 connecting the gripper bar 2 to the drive chains 4 is greater than the links length.
  • drive chains 4 which are the usual drive means for this kind of machine.
  • the illustrated means for bringing back the gripper bar 2 into determined positions about the axle front 5 and rear 6 use the tension of the drive chains, other connecting devices between the gripper bar 2 and the drive chains 4 might be used as well as means separate from the chains 4 for bringing the gripper bar 2 back into a determined position about a single transverse axle fixedly attached to the chains 4 .
  • two lowering cams 10 are preferable, with one at each end of the gripper bar, only one cam could be arranged in the middle of the gripper bar instead of at one end.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
  • Discharge By Other Means (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Specific Conveyance Elements (AREA)
  • Feeding Of Workpieces (AREA)
  • Press Drives And Press Lines (AREA)
US10/960,307 2003-10-08 2004-10-07 Working station of a machine processing plate elements Abandoned US20050077673A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH17092003 2003-10-08
CH01709/03 2003-10-08

Publications (1)

Publication Number Publication Date
US20050077673A1 true US20050077673A1 (en) 2005-04-14

Family

ID=34398340

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/960,307 Abandoned US20050077673A1 (en) 2003-10-08 2004-10-07 Working station of a machine processing plate elements

Country Status (8)

Country Link
US (1) US20050077673A1 (ja)
JP (1) JP2005111564A (ja)
KR (1) KR100635846B1 (ja)
CN (1) CN1616190A (ja)
AU (1) AU2004218631A1 (ja)
BR (1) BRPI0404334B1 (ja)
CA (1) CA2482118A1 (ja)
TW (1) TWI261042B (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090013884A1 (en) * 2007-07-09 2009-01-15 Heidelberger Druckmaschinen Ag Sheet punching and embossing machine and method for orienting the sheets
WO2016030830A1 (en) * 2014-08-26 2016-03-03 Highcon Systems Ltd. Method and apparatus for substrate stripping
CN105538246A (zh) * 2015-12-08 2016-05-04 刘锦刚 一种用于板材加工的可防尘的工作台装置及其使用方法
US10556415B2 (en) 2015-08-26 2020-02-11 Highcon Systems Ltd Method and apparatus for building a 3D object from layers of pre-stripped substrate
CN113751781A (zh) * 2021-09-02 2021-12-07 吴立柱 一种锂离子软包电池制造用极片批量固定裁剪装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101835549B (zh) * 2007-10-25 2013-03-06 弗拉蒂尼建筑机械公开有限公司 具有容器传送设备的、用于在金属容器上进行加工的设备
CN102555439A (zh) * 2012-01-12 2012-07-11 天津长荣印刷设备股份有限公司 一种带滚轮的牙排装置及其工作方法
KR101388514B1 (ko) * 2014-02-10 2014-04-23 (주)성림엔지니어링 무한궤도용 체인링크의 가공장치
CN111516049B (zh) * 2020-05-22 2021-06-15 陈建生 一种圆形橡胶垫截取装置
CN116493995B (zh) * 2023-06-28 2023-11-03 河北慧之源科技服务有限公司 一种活塞加工用装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470593A (en) * 1980-11-24 1984-09-11 Albert Halff Gripper arrangement for sheet-machining installations
US5213318A (en) * 1992-01-02 1993-05-25 Am International Incorporated Signature gatherer with light detector misfeed sensors
US5555969A (en) * 1994-05-04 1996-09-17 Bobst Sa Device for fastening a gripper bar on a chain train in a machine that processes plate-like workpieces
US5562279A (en) * 1994-05-04 1996-10-08 Bobst Sa Combination gripper bar and device for fastening the gripper bar on a chain train in a machine for processing plate-like workpieces
US5645679A (en) * 1994-03-24 1997-07-08 Ferag Ag Apparatus for feeding sheet-like products to a processing device for printed products
US6003858A (en) * 1997-11-18 1999-12-21 Heidelberger Druckmaschinen Ag Chain conveyor for transporting sheets in a printing press
US6357741B1 (en) * 2000-01-20 2002-03-19 Heidelberger Druckmaschinen Ag Velocity adjustable grippers on sliding carriage
US6488278B1 (en) * 1999-05-07 2002-12-03 Ferag Ag Apparatus for feeding sheet-like articles to a processing arrangement
US6612567B1 (en) * 2002-06-24 2003-09-02 Heidelberger Druckmaschinen Ag Adjustable gripping device for adjustable sheet-receiving pockets
US20030227128A1 (en) * 2002-06-10 2003-12-11 Dieter Gronau Positioning device for a gripper carriage of a sheet-processing punching and embossing machine
US6705608B2 (en) * 2002-07-01 2004-03-16 Heidelberger Druckmaschinen Ag Sheet material conveying apparatus with adjustable top grippers for pockets
US6786482B2 (en) * 2001-02-01 2004-09-07 Hallmark Cards Incorporated Material handler apparatus

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470593A (en) * 1980-11-24 1984-09-11 Albert Halff Gripper arrangement for sheet-machining installations
US5213318A (en) * 1992-01-02 1993-05-25 Am International Incorporated Signature gatherer with light detector misfeed sensors
US5645679A (en) * 1994-03-24 1997-07-08 Ferag Ag Apparatus for feeding sheet-like products to a processing device for printed products
US5555969A (en) * 1994-05-04 1996-09-17 Bobst Sa Device for fastening a gripper bar on a chain train in a machine that processes plate-like workpieces
US5562279A (en) * 1994-05-04 1996-10-08 Bobst Sa Combination gripper bar and device for fastening the gripper bar on a chain train in a machine for processing plate-like workpieces
US6003858A (en) * 1997-11-18 1999-12-21 Heidelberger Druckmaschinen Ag Chain conveyor for transporting sheets in a printing press
US6488278B1 (en) * 1999-05-07 2002-12-03 Ferag Ag Apparatus for feeding sheet-like articles to a processing arrangement
US6357741B1 (en) * 2000-01-20 2002-03-19 Heidelberger Druckmaschinen Ag Velocity adjustable grippers on sliding carriage
US6786482B2 (en) * 2001-02-01 2004-09-07 Hallmark Cards Incorporated Material handler apparatus
US20030227128A1 (en) * 2002-06-10 2003-12-11 Dieter Gronau Positioning device for a gripper carriage of a sheet-processing punching and embossing machine
US6866262B2 (en) * 2002-06-10 2005-03-15 Heidelberger Druckmaschinen Ag Positioning device for a gripper carriage of a sheet-processing punching and embossing machine
US6612567B1 (en) * 2002-06-24 2003-09-02 Heidelberger Druckmaschinen Ag Adjustable gripping device for adjustable sheet-receiving pockets
US6705608B2 (en) * 2002-07-01 2004-03-16 Heidelberger Druckmaschinen Ag Sheet material conveying apparatus with adjustable top grippers for pockets

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090013884A1 (en) * 2007-07-09 2009-01-15 Heidelberger Druckmaschinen Ag Sheet punching and embossing machine and method for orienting the sheets
WO2016030830A1 (en) * 2014-08-26 2016-03-03 Highcon Systems Ltd. Method and apparatus for substrate stripping
US10556415B2 (en) 2015-08-26 2020-02-11 Highcon Systems Ltd Method and apparatus for building a 3D object from layers of pre-stripped substrate
CN105538246A (zh) * 2015-12-08 2016-05-04 刘锦刚 一种用于板材加工的可防尘的工作台装置及其使用方法
CN113751781A (zh) * 2021-09-02 2021-12-07 吴立柱 一种锂离子软包电池制造用极片批量固定裁剪装置

Also Published As

Publication number Publication date
CN1616190A (zh) 2005-05-18
KR20050033865A (ko) 2005-04-13
BRPI0404334A (pt) 2005-06-14
JP2005111564A (ja) 2005-04-28
CA2482118A1 (en) 2005-04-08
TWI261042B (en) 2006-09-01
BRPI0404334B1 (pt) 2015-10-27
AU2004218631A1 (en) 2005-04-28
KR100635846B1 (ko) 2006-10-18
TW200524808A (en) 2005-08-01

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Date Code Title Description
AS Assignment

Owner name: BOBST S.A., SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PACHE, ERIC;REEL/FRAME:015938/0306

Effective date: 20041012

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION