FR2441488A1 - WETTING DEVICE FOR OFFSET MACHINE - Google Patents
WETTING DEVICE FOR OFFSET MACHINEInfo
- Publication number
- FR2441488A1 FR2441488A1 FR7927790A FR7927790A FR2441488A1 FR 2441488 A1 FR2441488 A1 FR 2441488A1 FR 7927790 A FR7927790 A FR 7927790A FR 7927790 A FR7927790 A FR 7927790A FR 2441488 A1 FR2441488 A1 FR 2441488A1
- Authority
- FR
- France
- Prior art keywords
- damping
- roller
- medium
- depression
- plate cylinder
- 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
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)
Abstract
In order to avoid an undesired build-up of damping medium on the non-printing regions of the plate cylinder in the damping unit when printing with only a partial covering of the plate cylinder with plates, the surface of the damping roller (5) which interacts with doctor elements (9) is provided with at least one depression (15) for receiving damping medium. Two further damping rollers (2, 3) are connected downstream of the damping roller (5). The depression (15) has the shape of a groove extending from one edge of the roller to the other. The depth of the groove (15) is less in the centre of the damping roller (5) than at the two ends. The damping roller (5) and the damping roller (3) following on in the transporting direction of the damping medium are driven at different speeds by the motors (4, 8).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2849096A DE2849096C2 (en) | 1978-11-11 | 1978-11-11 | Dampening system |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2441488A1 true FR2441488A1 (en) | 1980-06-13 |
FR2441488B1 FR2441488B1 (en) | 1983-11-18 |
Family
ID=6054493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7927790A Granted FR2441488A1 (en) | 1978-11-11 | 1979-11-12 | WETTING DEVICE FOR OFFSET MACHINE |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH641091A5 (en) |
DE (1) | DE2849096C2 (en) |
FR (1) | FR2441488A1 (en) |
IT (1) | IT1120625B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0305796A2 (en) * | 1987-08-17 | 1989-03-08 | Grapho Engineering S.R.L. | Damping device for offset printing machines |
EP0371386A2 (en) * | 1988-11-28 | 1990-06-06 | Kabushiki Kaisha Tokyo Kikai Seisakusho | Dampening roller and method for producing the same and dampening systems for a printing apparatus employing the dampening roller |
EP0882586A1 (en) * | 1997-06-05 | 1998-12-09 | Richard Harrington | A printing press damping system |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3445906A1 (en) * | 1984-12-15 | 1986-06-26 | Max Simmel Maschinenfabrik, 7530 Pforzheim | Damping unit for a flat bed offset proof press |
US5329850A (en) * | 1992-07-10 | 1994-07-19 | Eduardo Duarte | Metering roller for a lithographic printing press |
DE19616328C2 (en) * | 1996-04-24 | 1999-11-18 | Heidelberger Druckmasch Ag | Dampening unit for offset printing machines |
JP6488141B2 (en) * | 2015-02-09 | 2019-03-20 | アイマー・プランニング株式会社 | Dampening equipment for printing press |
CN104890350A (en) * | 2015-06-30 | 2015-09-09 | 云南华红印刷有限公司 | Water tank of offset printing press |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB601883A (en) * | 1941-09-27 | 1948-05-13 | Carl Ejner Larsen | Improvements in and relating to dampening devices for printing machines |
US2499870A (en) * | 1946-06-21 | 1950-03-07 | Cottrell C B & Sons Co | Means for and method of offset printing |
FR1248828A (en) * | 1959-03-05 | 1960-12-23 | Augsburg Nu Rnberg Ag Maschf | Wetting device for offset printing machines |
US3007407A (en) * | 1959-07-31 | 1961-11-07 | Thomas De La Rue & Company Ltd | Inking systems for printing machines |
US3059573A (en) * | 1960-08-26 | 1962-10-23 | Dominic J Marzullo | Dampening system for an offset lithography machine |
DE2553177A1 (en) * | 1975-02-05 | 1976-08-19 | Polygraph Leipzig | Printing machine ink or moistening appts. - has lifting roll intermittently engaging positively driven ductor roll |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1127370B (en) * | 1958-05-24 | 1962-04-12 | William Gegenheimer Co Inc | Dampening system for rotary flat printing machines |
DE6914951U (en) * | 1969-04-15 | 1972-06-15 | Roland Offsetmaschf | DUCTOR ROLLER FOR AN INKING UNIT OF PRINTING MACHINES. |
DE2054678C3 (en) * | 1970-11-06 | 1975-05-22 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach | Dampening unit for lithographic printing machines |
US4016811A (en) * | 1975-08-20 | 1977-04-12 | Rockwell International Corporation | Grooved roller dampener |
DE2553767A1 (en) * | 1975-11-29 | 1977-06-02 | Maschf Augsburg Nuernberg Ag | MOISTURIZING |
-
1978
- 1978-11-11 DE DE2849096A patent/DE2849096C2/en not_active Expired
-
1979
- 1979-11-05 CH CH991179A patent/CH641091A5/en not_active IP Right Cessation
- 1979-11-07 IT IT50761/79A patent/IT1120625B/en active
- 1979-11-12 FR FR7927790A patent/FR2441488A1/en active Granted
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB601883A (en) * | 1941-09-27 | 1948-05-13 | Carl Ejner Larsen | Improvements in and relating to dampening devices for printing machines |
US2499870A (en) * | 1946-06-21 | 1950-03-07 | Cottrell C B & Sons Co | Means for and method of offset printing |
FR1248828A (en) * | 1959-03-05 | 1960-12-23 | Augsburg Nu Rnberg Ag Maschf | Wetting device for offset printing machines |
US3007407A (en) * | 1959-07-31 | 1961-11-07 | Thomas De La Rue & Company Ltd | Inking systems for printing machines |
US3059573A (en) * | 1960-08-26 | 1962-10-23 | Dominic J Marzullo | Dampening system for an offset lithography machine |
DE2553177A1 (en) * | 1975-02-05 | 1976-08-19 | Polygraph Leipzig | Printing machine ink or moistening appts. - has lifting roll intermittently engaging positively driven ductor roll |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0305796A2 (en) * | 1987-08-17 | 1989-03-08 | Grapho Engineering S.R.L. | Damping device for offset printing machines |
EP0305796A3 (en) * | 1987-08-17 | 1989-03-22 | Grapho Engineering S.R.L. | Damping device for offset printing machines |
EP0371386A2 (en) * | 1988-11-28 | 1990-06-06 | Kabushiki Kaisha Tokyo Kikai Seisakusho | Dampening roller and method for producing the same and dampening systems for a printing apparatus employing the dampening roller |
EP0371386A3 (en) * | 1988-11-28 | 1991-03-13 | Kabushiki Kaisha Tokyo Kikai Seisakusho | Dampening roller and method for producing the same and dampening systems for a printing apparatus employing the dampening roller |
EP0882586A1 (en) * | 1997-06-05 | 1998-12-09 | Richard Harrington | A printing press damping system |
Also Published As
Publication number | Publication date |
---|---|
CH641091A5 (en) | 1984-02-15 |
DE2849096A1 (en) | 1980-05-14 |
IT1120625B (en) | 1986-03-26 |
DE2849096C2 (en) | 1983-12-08 |
IT7950761A0 (en) | 1979-11-07 |
FR2441488B1 (en) | 1983-11-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |