EP1522512A1 - Arbeitsstation einer Umwandlungmaschine für plattenförmige Elemente - Google Patents

Arbeitsstation einer Umwandlungmaschine für plattenförmige Elemente Download PDF

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Publication number
EP1522512A1
EP1522512A1 EP03405716A EP03405716A EP1522512A1 EP 1522512 A1 EP1522512 A1 EP 1522512A1 EP 03405716 A EP03405716 A EP 03405716A EP 03405716 A EP03405716 A EP 03405716A EP 1522512 A1 EP1522512 A1 EP 1522512A1
Authority
EP
European Patent Office
Prior art keywords
bar
chains
frame
working tool
cam
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.)
Granted
Application number
EP03405716A
Other languages
English (en)
French (fr)
Other versions
EP1522512B1 (de
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
Priority to ES03405716T priority Critical patent/ES2259755T3/es
Priority to DE60303918T priority patent/DE60303918T2/de
Priority to AT03405716T priority patent/ATE319640T1/de
Priority to EP03405716A priority patent/EP1522512B1/de
Publication of EP1522512A1 publication Critical patent/EP1522512A1/de
Application granted granted Critical
Publication of EP1522512B1 publication Critical patent/EP1522512B1/de
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
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/30—Supports; Subassemblies; Mountings thereof
    • B65H2402/31—Pivoting support means
    • 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
    • B65H2403/513—Cam mechanisms involving elongated cam, i.e. parallel to linear transport path
    • 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
    • B65H2701/1762—Corrugated
    • 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 station of work of a plate processing machine, for example a waste ejection station of a sheet cut by a platen press, comprising a frame, a work tool for example an ejection plate on which said sheet is to be laid, a bar of transverse pliers to grab the front edge of this sheet, two flexible training elements in the form of endless loops each secured to one end of said clip bar, means for guiding said elements flexible drive on said frame and means to bring said gripper bar closer to said work tool when this bar of pliers crosses the downstream end of this work tool.
  • the object of the present invention is to remedy the less in part, the disadvantages of the above-mentioned solutions.
  • the subject of the present invention is a workstation of an element processing machine in plates according to claim 1.
  • the terms "before” and “Backward” refer to the direction of travel F of the clamp bar. Since the invention relates specifically at the laying of treated leaves on the tool of work, preferably the ejection plate and not at the ejection proper, the ejection of the blanks and the means used for this ejection will neither be described nor represented in the description which follows. Otherwise, since the mechanism of the ejection device that will be described is symmetrical with respect to the longitudinal axis median of the platen press to which this ejection device is associated, this axis corresponding to the direction of transport F cut sheets, only one side of this workstation is represented by the drawing figures appended and will therefore be described in the description.
  • the workstation illustrated by Figures 1 to 3 has a frame 1, which we see only the part located on one side of the path of the leaves to be treated, a bar of tweezers 2 provided with tongs 3 to pinch the front edge of the leaves to be treated (not shown).
  • Each end of this clamp bar is connected to a chain 4 by two axes of articulation before 5 respectively rear 6, this chain 4, each attached to a connecting piece 7 which extends from the two sides of the drive chain 4.
  • These two axes 5, 6 are located at both ends of the drive chain 4 joined to each other by the connecting piece 7 forming an endless loop.
  • Each drive chain 4 is supported on a guide-chain 8 and passes on two chain wheels (not shown) conventionally in this type of machine.
  • the chains 4 on which a certain tension is exerted therefore tend to maintain the axes of articulation front 5 and back 6 in alignment with other links of these training chains 4, thus also serving as return means for holding the clamp bar 2 in a angular position determined with respect to the axes of articulation before 5 and back 6.
  • this guide-chain 8 presents, at the exit of the post at the place where the clip bar 2 is leaf on an ejection plate 9, a short down ramp 8a followed by an interruption over a certain length. At the end of the interruption, we find the guide-chain 8 which starts with a short ascending ramp 8b.
  • a cam 10 of descent of the clamp bar 2 is found in front of the interruption of the guide-chain 8.
  • This cam 10 is fixed to the frame 1 by screws 11.
  • the upper edge of this cam 10 is located under a protruding portion 1a of the frame 1 ( Figures 1 and 2).
  • a feeler wheel 12, integral with the clamp bar 2, is preferably located at each end of this bar 2.
  • This roller is disposed near the axis of articulation rear 6 of the drive chain 4, connecting the latter at link 7 and which is located at near the clamps 3 of the clamp bar 2 as well as that of the feeler roller 12.
  • the fixed cam 10 whose length is not limited by chain links of training, makes it possible to limit the accelerations communicated at the tweezers bar 2 during his movement tilting around the front axle 5.
  • This lengthening of the length of the stroke of the clamp bar 2 during which this clip bar is lowered adds to the fact that the distance between the articulation axes 5 and 6 connecting these drive chains 4 at the clip bar 2 is slightly greater than the length of a link in these chains 4, increasing the swing radius of the movable axis 6 around the fixed axis 5 resting on the guide-chain 8.
  • the means implemented to obtain this result are particularly simple, both from the point of view of manufacturing than the use of the machine. Ways used are significantly simpler than most proposed solutions to bring the cut leaves on the ejector plate.
  • the solution according to the present invention is just as simple but allows, on the other hand, to reduce the accelerations communicated to the clip bar, which is not possible when the length of the cam is limited by the interaxles linkages of the drive chains 4.

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)
  • Press Drives And Press Lines (AREA)
  • Chain Conveyers (AREA)
  • Jigs For Machine Tools (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
EP03405716A 2003-10-07 2003-10-07 Arbeitsstation einer Umwandlungsmaschine für plattenförmige Elemente Expired - Lifetime EP1522512B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES03405716T ES2259755T3 (es) 2003-10-07 2003-10-07 Estacion de trabajo de una maquina de transformacion de elementos en laminas.
DE60303918T DE60303918T2 (de) 2003-10-07 2003-10-07 Arbeitsstation einer Umwandlungsmaschine für plattenförmige Elemente
AT03405716T ATE319640T1 (de) 2003-10-07 2003-10-07 Arbeitsstation einer umwandlungsmaschine für plattenförmige elemente
EP03405716A EP1522512B1 (de) 2003-10-07 2003-10-07 Arbeitsstation einer Umwandlungsmaschine für plattenförmige Elemente

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03405716A EP1522512B1 (de) 2003-10-07 2003-10-07 Arbeitsstation einer Umwandlungsmaschine für plattenförmige Elemente

Publications (2)

Publication Number Publication Date
EP1522512A1 true EP1522512A1 (de) 2005-04-13
EP1522512B1 EP1522512B1 (de) 2006-03-08

Family

ID=34307061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03405716A Expired - Lifetime EP1522512B1 (de) 2003-10-07 2003-10-07 Arbeitsstation einer Umwandlungsmaschine für plattenförmige Elemente

Country Status (4)

Country Link
EP (1) EP1522512B1 (de)
AT (1) ATE319640T1 (de)
DE (1) DE60303918T2 (de)
ES (1) ES2259755T3 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US20010040334A1 (en) * 2000-05-05 2001-11-15 Bobst S.A. Device for positioning sheets in a machine station

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US20010040334A1 (en) * 2000-05-05 2001-11-15 Bobst S.A. Device for positioning sheets in a machine station

Also Published As

Publication number Publication date
ATE319640T1 (de) 2006-03-15
DE60303918D1 (de) 2006-05-04
DE60303918T2 (de) 2006-10-19
EP1522512B1 (de) 2006-03-08
ES2259755T3 (es) 2006-10-16

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