EP0336178A3 - Damping system for a web-fed offset rotary press - Google Patents

Damping system for a web-fed offset rotary press Download PDF

Info

Publication number
EP0336178A3
EP0336178A3 EP89104864A EP89104864A EP0336178A3 EP 0336178 A3 EP0336178 A3 EP 0336178A3 EP 89104864 A EP89104864 A EP 89104864A EP 89104864 A EP89104864 A EP 89104864A EP 0336178 A3 EP0336178 A3 EP 0336178A3
Authority
EP
European Patent Office
Prior art keywords
dampening solution
plate cylinder
diameter
roller
dampening
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.)
Withdrawn
Application number
EP89104864A
Other languages
German (de)
French (fr)
Other versions
EP0336178A2 (en
Inventor
Arthur Hilner
Anton Hamm
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.)
Manroland AG
Original Assignee
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0336178A2 publication Critical patent/EP0336178A2/en
Publication of EP0336178A3 publication Critical patent/EP0336178A3/en
Withdrawn legal-status Critical Current

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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

1. Bei bekannten Feuchtwerken wird das Feuchtmittel von einem Feuchtmittel- Geber abgegeben und mittels Übertragwalzen an eine Auftragwalze weitergegeben, die unmittelbar an einen Plattenzylinder angestellt ist. Der Auftragwalze wird von den Übertragwalzen ein gleichmäßiger Feuchtmittel- Film zugeführt. Durch die Spannkanäle des Plattenzylinders bilden sich am Auftragzylinder Streifen mit überschüssigem Feuchtmittel aus. Zudem nimmt sie überschüssiges Feuchtmittel von den hydrophilen Oberflächenteilen des Plattenzylinders auf und gibt dieses bei erneutem Kontakt mit dem Plattenzylinder an anderer Stelle wieder ab. Dies führt zu unerwünschter Feuchtstreifenbildung im Druckbild. 1. In known dampening systems, the dampening solution from one Dampening solution dispenser and transferred to a transfer roller Applicator roller passed on directly to one Plate cylinder is employed. The application roller is used by the A uniform dampening solution film is fed into the transfer rollers. The clamping channels of the plate cylinder form on Apply cylinder strips with excess dampening solution. It also removes excess dampening solution from the hydrophilic ones Surface parts of the plate cylinder and gives this renewed contact with the plate cylinder at another location from. This leads to undesirable formation of damp streaks in the Printed image.

2. Erfindungsgemäß wird die Feuchtmittel- Auftragwalze (3) in ihrem Durchmesser auf den Plattenzylinder (2) so abgestimmt, daß dessen Durchmesser bei n Spannkanälen ein 1/n-faches oder ein Einfaches ihres Durchmessers beträgt. In weiterer vorteilhafter Ausgestaltung weist die Feuchtmittel- Auftragwalze (3) einen Durchmesser auf, der einem ganzzahligen Vielfachen - vorzugsweise einem Einfachen - des Durchmessers einer vorangestellten Übertragwalze (4) beträgt. 2. According to the dampening solution applicator roller (3) in its Diameter matched to the plate cylinder (2) so that whose diameter is 1 / n times or one for n clamping channels Simple of their diameter is. In another The dampening solution applicator roller has an advantageous embodiment (3) a diameter that is an integer multiple - preferably a simple one - the diameter of one leading transfer roller (4).

EP89104864A 1988-04-02 1989-03-18 Damping system for a web-fed offset rotary press Withdrawn EP0336178A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883811288 DE3811288A1 (en) 1988-04-02 1988-04-02 DAMPING UNIT ON A ROLLING ROTATION OFFSET PRINTING MACHINE
DE3811288 1988-04-02

Publications (2)

Publication Number Publication Date
EP0336178A2 EP0336178A2 (en) 1989-10-11
EP0336178A3 true EP0336178A3 (en) 1990-05-09

Family

ID=6351334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104864A Withdrawn EP0336178A3 (en) 1988-04-02 1989-03-18 Damping system for a web-fed offset rotary press

Country Status (3)

Country Link
EP (1) EP0336178A3 (en)
JP (1) JPH01299038A (en)
DE (2) DE8816770U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004042262B4 (en) * 2004-09-01 2014-03-06 Koenig & Bauer Aktiengesellschaft Rotary press

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073002B (en) * 1960-01-14 Institut für grafische Technik, Leipzig Method and device for moistening printing plates for rotary collotype printing
GB2035903A (en) * 1978-11-15 1980-06-25 Polygraph Leipzig Moistening apparatus
JPS57107837A (en) * 1980-12-25 1982-07-05 Akiyama Insatsuki Seizo Kk Water supplying mechanism in printing machine
JPS57207064A (en) * 1981-06-17 1982-12-18 Komori Printing Mach Co Ltd Water supplier for lithographic rotary printer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD144155B1 (en) * 1979-06-06 1988-04-27 Hans Johne WETTING WORK FOR ROTATION OFFSET PRINTING MACHINES
DE3232780C2 (en) * 1981-10-31 1986-02-06 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Inking unit for offset printing machines
JPS62113551A (en) * 1985-11-13 1987-05-25 Mitsubishi Heavy Ind Ltd Dampening device of lithographic printer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073002B (en) * 1960-01-14 Institut für grafische Technik, Leipzig Method and device for moistening printing plates for rotary collotype printing
GB2035903A (en) * 1978-11-15 1980-06-25 Polygraph Leipzig Moistening apparatus
JPS57107837A (en) * 1980-12-25 1982-07-05 Akiyama Insatsuki Seizo Kk Water supplying mechanism in printing machine
JPS57207064A (en) * 1981-06-17 1982-12-18 Komori Printing Mach Co Ltd Water supplier for lithographic rotary printer

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 201 (M-163)(1079) 13 Oktober 1982, & JP-A-57 107837 (AKIYAMA INSATSUKI SEIZOU K.K.) 05 Juli 1982, *
PATENT ABSTRACTS OF JAPAN vol. 7, no. 63 (M-200)(1208) 16 März 1983, & JP-A-57 207064 (KOMORI INSATSU KIKAI K.K.) 18 Dezember 1982, *

Also Published As

Publication number Publication date
EP0336178A2 (en) 1989-10-11
DE8816770U1 (en) 1990-08-09
DE3811288A1 (en) 1989-10-19
JPH01299038A (en) 1989-12-01

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