EP0386489A3 - Method of controlling dampening in an offset printing machine - Google Patents

Method of controlling dampening in an offset printing machine Download PDF

Info

Publication number
EP0386489A3
EP0386489A3 EP19900102549 EP90102549A EP0386489A3 EP 0386489 A3 EP0386489 A3 EP 0386489A3 EP 19900102549 EP19900102549 EP 19900102549 EP 90102549 A EP90102549 A EP 90102549A EP 0386489 A3 EP0386489 A3 EP 0386489A3
Authority
EP
European Patent Office
Prior art keywords
ist
dampening solution
setpoint
printing machine
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
EP19900102549
Other languages
German (de)
French (fr)
Other versions
EP0386489B1 (en
EP0386489A2 (en
Inventor
Helmut Kipphan
Josef Haase
Werner Joss
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 EP0386489A2 publication Critical patent/EP0386489A2/en
Publication of EP0386489A3 publication Critical patent/EP0386489A3/en
Application granted granted Critical
Publication of EP0386489B1 publication Critical patent/EP0386489B1/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
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0054—Devices for controlling dampening

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Feedback Control In General (AREA)
  • Rotary Presses (AREA)
  • Screen Printers (AREA)

Abstract

Zur Erzielung einer gleichbleibend guten Druckqualität ist es von großer Wichtigkeit, daß die Regelung der Feuchtmittelmenge auf der Druckplatte sehr schnell erfolgt, ohne daß hierdurch Instabilitäten hervorgerufen werden. Darüber hinaus soll die Regelung in der Lage sein, die Feuchtmittelmenge selbst beim Angreifen starker Störgrößen konstant zu halten. Zur Lösung der gestellten Anforderungen wird folgendes Verfahren zur Regelung der Feuchtmittelmenge auf der Druckplatte vorgeschlagen: Bei Regelabweichungen (Xd), bei denen der Sollwert (Sw soll) größer als der Istwert (Sw ist) ist, wird der Regler 24 mit einem größeren Verstärkungsfaktor (KR) betrieben als bei Regelabweichungen (XD), bei denen der Sollwert (Sw soll) kleiner als der Istwert (Sw ist) ist. To achieve consistently good print quality it is of great importance that the regulation of the Amount of dampening solution on the printing plate is very fast, without causing instabilities. In addition, the scheme should be able to Quantity of dampening solution even when attacking strong disturbances to keep constant. To solve the requirements is the following procedure for regulating the amount of dampening solution suggested on the pressure plate: in case of control deviations (Xd) where the setpoint (Sw set) is greater than that Actual value (Sw ist), the controller 24 becomes larger Gain factor (KR) operated as with control deviations (XD) where the setpoint (Sw set) is less than that Actual value (Sw ist) ist.

EP90102549A 1989-03-09 1990-02-09 Method of controlling dampening in an offset printing machine Expired - Lifetime EP0386489B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3907584A DE3907584A1 (en) 1989-03-09 1989-03-09 METHOD FOR HUMIDITY CONTROL IN AN OFFSET PRINTING MACHINE
DE3907584 1989-03-09

Publications (3)

Publication Number Publication Date
EP0386489A2 EP0386489A2 (en) 1990-09-12
EP0386489A3 true EP0386489A3 (en) 1991-04-03
EP0386489B1 EP0386489B1 (en) 1994-05-18

Family

ID=6375897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102549A Expired - Lifetime EP0386489B1 (en) 1989-03-09 1990-02-09 Method of controlling dampening in an offset printing machine

Country Status (7)

Country Link
EP (1) EP0386489B1 (en)
JP (1) JPH02273236A (en)
CN (1) CN1019651B (en)
AU (1) AU625335B2 (en)
CA (1) CA2008816A1 (en)
DE (2) DE3907584A1 (en)
ES (1) ES2056260T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666765B1 (en) * 1990-09-14 1994-04-15 Man Roland Druckmaschinen Ag METHOD FOR CONTROLLING THE WETTING AGENT SUPPLY ON THE PRINTING PLATE OF AN OFFSET PRINTING MACHINE.
DE4238557A1 (en) * 1992-11-14 1994-05-19 Koenig & Bauer Ag Method for adjusting the amount of dampening solution in an offset rotary printing press
DE4244500A1 (en) * 1992-12-30 1994-07-07 Heidelberger Druckmasch Ag Process for supplying dampening solution
US5592880A (en) * 1993-12-30 1997-01-14 Heidelberger Druckmaschinen Method of supplying or feeding dampening solution
DE10056247B4 (en) 1999-12-06 2011-07-21 Heidelberger Druckmaschinen AG, 69115 Method for controlling the amount of ink in a printing machine
AUPQ611200A0 (en) * 2000-03-09 2000-03-30 Commonwealth Scientific And Industrial Research Organisation Determination of change in thickness of dampening solution on offset printing rollers
DE102010034350A1 (en) * 2010-08-14 2012-02-16 Manroland Ag Device for controlling fountain solution application and ink application in a printing machine
DE102012002260A1 (en) 2011-02-24 2012-08-30 Heidelberger Druckmaschinen Aktiengesellschaft Machine-dependent compensation in inking unit and dampening unit
DE102013001031A1 (en) * 2012-02-17 2013-08-22 Heidelberger Druckmaschinen Ag Method for producing control panel for detecting boundary lubrication in compression plate for offset printing, involves irradiating rubber coating of push plate for producing control panel, where irradiation takes place by laser
DE102013009466A1 (en) * 2012-07-04 2014-01-09 Heidelberger Druckmaschinen Ag Method for adjustment of dampening medium amount in printing machine for offset printing of image, involves computing medium amount based on measurement value and relationship of processor, and adjusting medium amount in dampening device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636507A1 (en) * 1986-10-27 1988-04-28 Grapho Metronic Gmbh & Co Method for adjusting the degree of moistening of the plate cylinder of an offset printer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3536006A (en) * 1967-07-11 1970-10-27 Vandercook & Sons Inc Multicolor rotary offset printing press with cylinder interruption
US3700984A (en) * 1971-03-08 1972-10-24 North American Rockwell Dampener control system for lithographic printing press
DE2214721B1 (en) * 1972-03-25 1973-06-14 Heidelberger Druckmaschinen Ag, 6900 Heidelberg PROCESS AND DEVICE FOR AUTOMATIC ADJUSTMENT OF FLUCTUATIONS IN THE PAINT AND MOISTURE FLUID ON OFFSET MACHINES
US3946297A (en) * 1974-03-05 1976-03-23 Johnson Service Company Insertion integrating controller
US4029008A (en) * 1976-05-24 1977-06-14 Addressograph Multigraph Corporation Moisture control system
DE2931579C2 (en) * 1979-08-03 1982-11-11 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Device for zonal regulation of the dampening solution supply
DE3003642A1 (en) * 1980-02-01 1981-08-06 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach OFFSET PRINTING MACHINE
DE3211157A1 (en) * 1982-03-26 1983-10-06 Roland Man Druckmasch METHOD AND DEVICE FOR MOISTURIZING PRINTING PLATES
DD259820B5 (en) * 1987-04-02 1996-05-30 Kba Planeta Ag Method and device for controlling the speed of the moisturizing motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636507A1 (en) * 1986-10-27 1988-04-28 Grapho Metronic Gmbh & Co Method for adjusting the degree of moistening of the plate cylinder of an offset printer

Also Published As

Publication number Publication date
CN1045366A (en) 1990-09-19
CN1019651B (en) 1992-12-30
EP0386489B1 (en) 1994-05-18
JPH02273236A (en) 1990-11-07
EP0386489A2 (en) 1990-09-12
DE3907584A1 (en) 1990-09-13
AU625335B2 (en) 1992-07-09
DE59005701D1 (en) 1994-06-23
CA2008816A1 (en) 1990-09-09
ES2056260T3 (en) 1994-10-01
AU4879990A (en) 1990-09-13

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