EP0700782A2 - Rouleau doseur dans un dispositif de mouillage d'une machine à imprimer offset - Google Patents
Rouleau doseur dans un dispositif de mouillage d'une machine à imprimer offset Download PDFInfo
- Publication number
- EP0700782A2 EP0700782A2 EP95113647A EP95113647A EP0700782A2 EP 0700782 A2 EP0700782 A2 EP 0700782A2 EP 95113647 A EP95113647 A EP 95113647A EP 95113647 A EP95113647 A EP 95113647A EP 0700782 A2 EP0700782 A2 EP 0700782A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- dampening
- dampening solution
- metering roller
- pickup
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0054—Devices for controlling dampening
-
- 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
Definitions
- the invention relates to a metering roller for a film dampening unit of an offset rotary printing press according to the preamble of the claim.
- a dampening unit for a lithographic printing machine with at least one dampening solution application roller is known, by means of which the dampening solution can be applied to a plate cylinder and a roller or dampening solution duct connected upstream of the dampening solution application roller has become known.
- the metering roller can be skewed relative to the dampening agent application roller or the dampening solution ductor for the purpose of dampening solution metering, the diameter at the ends of the metering roller being larger than in its central region.
- the invention has for its object to provide a metering roller for a dampening system, the Dampening solution metering is repeatable depending on the print order.
- each print job can be repeated at any time with the same print quality and without great loss of time or waste.
- a dampening unit consists of a dampening agent application roller 2 interacting with a plate cylinder 1, a dampening solution duct 3 and a metering roller 4 that can be adjusted to the dampening solution 3 pivoted levers 7 and can be turned by turning eccentric bushings 8 in their distance a between the journal 6 of the dampening solution 3 and the journal 9 of the metering roller 4 can be set.
- the sleeve 8 is positively connected to a first end of a lever 11, while a second end of the lever 11 is connected in an articulated manner to a motor-gear unit 12 with an integrated position indicator or potentiometer 13.
- the motor-gear unit 12 is articulated between an end of the lever 7 remote from the dampening medium and said lever 11.
- the dampening solution duct 3 is immersed in a dampening solution container 15.
- a motor-gear unit 16 with an integrated position indicator or potentiometer 17, which is articulated between the end 7 of the lever 7 carrying the metering roller 4 and a side frame 14, with an integrated position indicator or potentiometer 17, each lever 7 can be pivoted and thus the metering roller 4 can be tilted with respect to the dampening unit 3.
- the diameter of both ends of the metering roller 4 can be larger than the diameter of the central region of the metering roller 4.
- Each of the parts 6 to 9, 11 to 14 and 16, 17, 19 and 21 is provided twice, ie separately for each end face of the dampening solution 3 or the metering roller 4, but only shown once in the drawing and labeled only once.
- Each potentiometer 13; 17 of the motor gear units 12; 16 is for the purpose of position feedback with a z. B. in Machine control station existing computer 18 connected, while the computer 18 with each motor-gear unit 12; 16 via an amplifier 19; 21 communicates.
- a strip-shaped dampening solution thickness control device 22 which scans the surface of the dampening solution 3 in the direction parallel to the axis is connected to the computer 18 and its memory 23 and transfers information about the amount of dampening solution transferred from the metering roller 4 to the dampening application roller 2 by means of the dampening solution 3.
- the computer 18 is also connected to a higher-level controller or keyboard 24 for the purpose of entering control commands and to a monitor 26.
- a plurality of dampening agent thickness control devices 22 spaced apart from one another in the axis-parallel direction of the dampening solution duct 3 are provided.
- the distance a and thus the contact pressure of the metering roller 4 on the dampening solution 3 is preset according to the printing requirements by means of the keyboard 24.
- a different amount of dampening solution over the length of the dampening solution generator 3 can be preset by means of the motor drive unit 16 due to the separate inclination of the levers 7.
- the dampening agent thickness control devices 22 arranged in the axis-parallel direction to the dampening agent duct 3 are guided the measurement results to the computer 18, the actual values being compared with the target values on the monitor 26 and, if necessary, a correction being able to be initiated using the keyboard 18.
- the stored dampening solution values per print job can be called up at any time from the memory 23 of the computer 18 for repeat jobs and used for metering the amount of dampening solution.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rotary Presses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4431646A DE4431646A1 (de) | 1994-09-06 | 1994-09-06 | Dosierwalze an einem Feuchtwerk einer Offsetrotationsdruckmaschine |
DE4431646 | 1994-09-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0700782A2 true EP0700782A2 (fr) | 1996-03-13 |
EP0700782A3 EP0700782A3 (fr) | 1997-03-12 |
EP0700782B1 EP0700782B1 (fr) | 2000-01-19 |
Family
ID=6527492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95113647A Expired - Lifetime EP0700782B1 (fr) | 1994-09-06 | 1995-08-31 | Dispositif de mouillage d'une machine à imprimer offset |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0700782B1 (fr) |
DE (2) | DE4431646A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1593497A2 (fr) * | 2004-05-05 | 2005-11-09 | MAN Roland Druckmaschinen AG | Dispostif de mouillage pour une machine d'impression |
US7225735B2 (en) | 2004-05-03 | 2007-06-05 | Heidelberger Druckmaschinen Ag | Method for roller adjustment in a printing press |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005015791B4 (de) | 2004-05-03 | 2023-10-26 | Heidelberger Druckmaschinen Ag | Verfahren zur Walzenjustage in einer Druckmaschine |
DE102008061599A1 (de) | 2008-12-11 | 2009-12-03 | Heidelberger Druckmaschinen Ag | Verfahren zum Einstellen eines Feuchtwerks einer Druckmaschine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2054678A1 (de) | 1970-11-06 | 1972-10-26 | Roland Offsetmaschinenfabnk Fa ber & Schleicher AG, 6050 Offenbach | Feuchtwerk fur lithographische Druckmaschinen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4000692A (en) * | 1974-12-03 | 1977-01-04 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag | Throw-off system for rotary offset printing press |
FR2561584B1 (fr) * | 1984-03-21 | 1987-06-26 | Marinoni Harris Sa | Dispositif de mouillage a film d'eau et son utilisation sur les groupes imprimants des presses offset |
IT1211266B (it) * | 1987-08-17 | 1989-10-12 | Grapho Eng Srl | Sistema di bagnatura continua a regolazione automatica per macchine da stampa offset |
DE3912811A1 (de) * | 1989-04-19 | 1990-10-25 | Heidelberger Druckmasch Ag | Verfahren und vorrichtung fuer die feuchtmittelfuehrung einer offset-druckmaschine |
-
1994
- 1994-09-06 DE DE4431646A patent/DE4431646A1/de not_active Withdrawn
-
1995
- 1995-08-31 DE DE59507633T patent/DE59507633D1/de not_active Expired - Fee Related
- 1995-08-31 EP EP95113647A patent/EP0700782B1/fr not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2054678A1 (de) | 1970-11-06 | 1972-10-26 | Roland Offsetmaschinenfabnk Fa ber & Schleicher AG, 6050 Offenbach | Feuchtwerk fur lithographische Druckmaschinen |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7225735B2 (en) | 2004-05-03 | 2007-06-05 | Heidelberger Druckmaschinen Ag | Method for roller adjustment in a printing press |
EP1593497A2 (fr) * | 2004-05-05 | 2005-11-09 | MAN Roland Druckmaschinen AG | Dispostif de mouillage pour une machine d'impression |
EP1593497A3 (fr) * | 2004-05-05 | 2006-06-07 | MAN Roland Druckmaschinen AG | Dispostif de mouillage pour une machine d'impression |
Also Published As
Publication number | Publication date |
---|---|
EP0700782B1 (fr) | 2000-01-19 |
EP0700782A3 (fr) | 1997-03-12 |
DE4431646A1 (de) | 1996-03-07 |
DE59507633D1 (de) | 2000-02-24 |
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