CA2000730A1 - Device for correcting the register of sheet prints in a sheet-fed rotary printing machine - Google Patents

Device for correcting the register of sheet prints in a sheet-fed rotary printing machine

Info

Publication number
CA2000730A1
CA2000730A1 CA2000730A CA2000730A CA2000730A1 CA 2000730 A1 CA2000730 A1 CA 2000730A1 CA 2000730 A CA2000730 A CA 2000730A CA 2000730 A CA2000730 A CA 2000730A CA 2000730 A1 CA2000730 A1 CA 2000730A1
Authority
CA
Canada
Prior art keywords
sheet
gripper bridge
gripper
bending device
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.)
Granted
Application number
CA2000730A
Other languages
French (fr)
Other versions
CA2000730C (en
Inventor
Gerhard Pollich
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of CA2000730A1 publication Critical patent/CA2000730A1/en
Application granted granted Critical
Publication of CA2000730C publication Critical patent/CA2000730C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B41F21/04—Grippers
    • B41F21/05—In-feed 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
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position

Abstract

The device relates to the register correction of sheet prints and the compensation of distorted sheets in a sheet-fed rotary printing machine by deformation of the leading sheet edge before the printing unit. It consists of an adjustable bending device which, in accordance with the machine beat, bends a cross-bar on which there are provided adjacent sheet grippers and which extends transversely to the travel direction of the sheet. This bending device cooperates with a pre-gripper exe-cuting swinging movements about a stationary axis or about an axis which can be adjusted into fixed positions, said pre-grip-per comprising a gripper bridge (8) which forms the cross-bar for the sheet grippers and, at least, the ends of which are supported on a gripper bridge shaft (10) by means of flexurally stiff levers (9), said bending device consisting of at least one adjustable stop (12, 21) which is fixed to the machine frame (11) and against which the gripper bridge (8) abuts in approximately the middle between the two levers (9) before, when swivelling back, the gripper bridge ends will have reached their zero position in which the sheet grippers (20) will take the sheet (1).
CA002000730A 1988-12-03 1989-10-16 Device for correcting the register of sheet prints in a sheet-fed rotary printing machine Expired - Fee Related CA2000730C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3840870.8 1988-12-03
DE3840870 1988-12-03

Publications (2)

Publication Number Publication Date
CA2000730A1 true CA2000730A1 (en) 1990-06-03
CA2000730C CA2000730C (en) 1995-01-31

Family

ID=6368455

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002000730A Expired - Fee Related CA2000730C (en) 1988-12-03 1989-10-16 Device for correcting the register of sheet prints in a sheet-fed rotary printing machine

Country Status (5)

Country Link
EP (1) EP0372237B1 (en)
JP (1) JPH02200438A (en)
CN (1) CN1013261B (en)
CA (1) CA2000730C (en)
DE (2) DE8816641U1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131887C1 (en) * 1991-09-25 1993-01-07 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
JP3339515B2 (en) * 1993-08-12 2002-10-28 株式会社小森コーポレーション Paper transport device for sheet-fed printing press
DE9409890U1 (en) * 1994-06-18 1994-08-04 Heidelberger Druckmasch Ag Device for register correction on sheet-fed rotary printing machines
DE4434624C2 (en) 1994-09-28 1997-11-20 Heidelberger Druckmasch Ag Device for register correction and to compensate for tensioned sheets in the feeder of a sheet-fed rotary printing machine
DE19503739C1 (en) * 1995-02-04 1996-04-04 Heidelberger Druckmasch Ag Registration error prevention device for pre=gripper of chain gripper bar
DE19611124B4 (en) * 1996-03-21 2012-07-26 Heidelberger Druckmaschinen Ag Sheet transfer device of a sheet-fed rotary printing machine
CN1084253C (en) * 1999-01-19 2002-05-08 李青安 Automatic quick paper feeding system without gripping paper device
ATE246086T1 (en) * 1999-02-26 2003-08-15 Komori Printing Mach CONVEYING DEVICE FOR SHEET-SHAPED OBJECTS IN A SHEET-HEET ROTARY PRINTING MACHINE
CH693951A5 (en) * 2000-03-08 2004-05-14 Bobst Sa Device for the longitudinal alignment of plate-like members in an infeed station of a machine processing them.
JP4496132B2 (en) * 2005-06-08 2010-07-07 アキヤマインターナショナル株式会社 Swing device for multicolor printing sheet offset printing machine
CN101412296B (en) * 2007-10-18 2011-02-16 李青安 Die-cutting mark press (or thermoprinting machine) with paper holding and locating at the feed portion and one time paper-push-paper movement
DE102008060291B4 (en) 2007-12-13 2022-09-01 Heidelberger Druckmaschinen Ag Sheet acceleration system for a sheet-fed printing press
CN103979328A (en) * 2014-05-22 2014-08-13 邱浩 Gripper-bar paper feeder of die-cutting machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577099A (en) * 1946-06-14 1951-12-04 Hoe & Co R Method of and means for registering impressions in multiunit sheet printing machines
DE1079077B (en) * 1956-12-07 1960-04-07 Schnellressenfab Heidelberg Sheet feeder for sheet processing machines, especially printing machines, with feed marks that can be pushed back and forth
CA936185A (en) * 1970-08-26 1973-10-30 North American Rockwell Corporation Means for overcoming fan-out in lithographic press
DE2052786A1 (en) * 1970-10-28 1972-05-04 North American Rockwell Corp , (n d Ges d Staates Delaware), Pitts burgh, Pa (V St A) Sheet feeding device for printing machines
JPS5935042B2 (en) * 1977-09-26 1984-08-27 株式会社写研 Positioning method in phototypesetting machines and similar machines
DE3504435A1 (en) * 1985-02-09 1986-08-14 Miller-Johannisberg Druckmaschinen Gmbh, 6200 Wiesbaden BOW PRINTING MACHINE WITH BOWING SYSTEM ON A PRINTING MACHINE CYLINDER

Also Published As

Publication number Publication date
EP0372237B1 (en) 1995-04-26
DE8816641U1 (en) 1990-01-25
EP0372237A2 (en) 1990-06-13
CN1013261B (en) 1991-07-24
DE58909200D1 (en) 1995-06-01
CA2000730C (en) 1995-01-31
JPH02200438A (en) 1990-08-08
EP0372237A3 (en) 1990-10-10
CN1043107A (en) 1990-06-20

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed