EP0296393A3 - Damping unit for an offset printing machine - Google Patents

Damping unit for an offset printing machine Download PDF

Info

Publication number
EP0296393A3
EP0296393A3 EP88108848A EP88108848A EP0296393A3 EP 0296393 A3 EP0296393 A3 EP 0296393A3 EP 88108848 A EP88108848 A EP 88108848A EP 88108848 A EP88108848 A EP 88108848A EP 0296393 A3 EP0296393 A3 EP 0296393A3
Authority
EP
European Patent Office
Prior art keywords
roller
printing machine
circumferential speed
driven
offset printing
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
EP88108848A
Other languages
German (de)
Other versions
EP0296393A2 (en
EP0296393B1 (en
Inventor
Walter Dipl.-Ing. D'heureuse
Hans-Jurgen Kusch
Gerhard Heppenstiel
Rudi Stellberger
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
Priority to AT88108848T priority Critical patent/ATE73047T1/en
Publication of EP0296393A2 publication Critical patent/EP0296393A2/en
Publication of EP0296393A3 publication Critical patent/EP0296393A3/en
Application granted granted Critical
Publication of EP0296393B1 publication Critical patent/EP0296393B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/26—Damping devices using transfer rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Coating Apparatus (AREA)
  • Screen Printers (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Motor Or Generator Frames (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Discharge By Other Means (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

In order to achieve a clear printed image which is, in particular, free from so-called "gear marks", the metering roller in a damping mechanism for an offset printing machine having a pair of rollers comprising an applicator roller and a metering roller driven is driven by a gear wheel which engages with a driving gear in a gear train, the applicator roller being driven exclusively by friction and braking moments acting on the applicator roller being compensated to such an extent by such a high circumferential speed of the metering roller relative to an associated plate cylinder that the applicator roller, in a continuous printing position of the damping mechanism, rotates with a circumferential speed which is in the order of 0.5 to 2.0% lower than the circumferential speed of the plate cylinder.
EP88108848A 1987-06-25 1988-06-03 Damping unit for an offset printing machine Expired - Lifetime EP0296393B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88108848T ATE73047T1 (en) 1987-06-25 1988-06-03 DAMPENING UNIT FOR AN OFFSET PRINTING PRESS.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3720986 1987-06-25
DE3720986 1987-06-25
DE3813829 1988-04-23
DE3813829A DE3813829A1 (en) 1987-06-25 1988-04-23 DAMPING UNIT FOR AN OFFSET PRINTING MACHINE

Publications (3)

Publication Number Publication Date
EP0296393A2 EP0296393A2 (en) 1988-12-28
EP0296393A3 true EP0296393A3 (en) 1990-02-07
EP0296393B1 EP0296393B1 (en) 1992-03-04

Family

ID=25856935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88108848A Expired - Lifetime EP0296393B1 (en) 1987-06-25 1988-06-03 Damping unit for an offset printing machine

Country Status (9)

Country Link
US (1) US4962705A (en)
EP (1) EP0296393B1 (en)
JP (1) JP2616965B2 (en)
AT (1) ATE73047T1 (en)
AU (2) AU597835B2 (en)
CA (1) CA1316041C (en)
DE (2) DE3813829A1 (en)
DK (1) DK329288A (en)
ES (1) ES2030461T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0345716A3 (en) * 1988-06-06 1990-12-19 Varn Products Company, Inc. Dampening apparatus for lithographic press
US6211761B1 (en) 1997-09-10 2001-04-03 Takamisawa Electric Co., Ltd. Electromagnetic relay, joining structure for hinge spring and yoke in the electromagnetic relay, and flux penetration preventing structure
DE10361055A1 (en) * 2003-12-22 2005-07-21 Eap Lachnit Gmbh Method for surface coating of regular/irregular components with flat surfaces with material application prepared for full width of outlet, but applied to surfaces only, and residue returned
CN104261082B (en) * 2014-10-23 2016-04-27 湖州科尼物流设备有限公司 Drive mechanism between a kind of adjacent conveyor roller

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673959A (en) * 1970-04-22 1972-07-04 North American Rockwell Dampening system for lithographic printing press
DE2206498A1 (en) * 1971-03-10 1972-09-21 North American Rockwell Corp , Pittsburgh, Pa (V St A ) Dampening system with dampening fluid accumulated in the roller gap
FR2213851A1 (en) * 1973-01-16 1974-08-09 Maschf Augsburg Nuernberg Ag

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902417A (en) * 1972-04-29 1975-09-02 Maschf Augsburg Nuernberg Ag Wetting system for rotary offset printing presses
US4127067A (en) * 1974-02-15 1978-11-28 Dahlgren Harold P Method for inking printing plates
JPS5828743B2 (en) * 1977-09-02 1983-06-17 株式会社日立製作所 Thyristor valve for high voltage
DE2845932A1 (en) * 1978-10-21 1980-04-24 Heidelberger Druckmasch Ag COMBINED MOISTURE INK FOR OFFSET PRINTING
US4455938A (en) * 1979-05-22 1984-06-26 Graph Tech Inc. Dampening apparatus for lithographic press
ATE10602T1 (en) * 1980-09-10 1984-12-15 Varn Products Company Limited DAMPENING.
US4453463A (en) * 1981-07-13 1984-06-12 Dahlgren Harold P Inking systems
JPS59212268A (en) * 1983-05-11 1984-12-01 ボ−ルドウイン・テクノロジイ・コ−ポレイシヨン Humidifier and method in lithographic press
US4724764B1 (en) * 1983-05-11 1994-09-20 Baldwin Technology Corp Dampening system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673959A (en) * 1970-04-22 1972-07-04 North American Rockwell Dampening system for lithographic printing press
DE2206498A1 (en) * 1971-03-10 1972-09-21 North American Rockwell Corp , Pittsburgh, Pa (V St A ) Dampening system with dampening fluid accumulated in the roller gap
FR2213851A1 (en) * 1973-01-16 1974-08-09 Maschf Augsburg Nuernberg Ag

Also Published As

Publication number Publication date
EP0296393A2 (en) 1988-12-28
JPS6434737A (en) 1989-02-06
AU620905B2 (en) 1992-02-27
AU4010389A (en) 1990-04-05
DK329288D0 (en) 1988-06-16
ATE73047T1 (en) 1992-03-15
US4962705A (en) 1990-10-16
DE3813829C2 (en) 1992-03-12
DE3813829A1 (en) 1989-01-05
DE3868709D1 (en) 1992-04-09
CA1316041C (en) 1993-04-13
JP2616965B2 (en) 1997-06-04
AU597835B2 (en) 1990-06-07
ES2030461T3 (en) 1992-11-01
AU1841588A (en) 1989-01-05
EP0296393B1 (en) 1992-03-04
DK329288A (en) 1988-12-26

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