EP0132626B1 - Vorrichtung zum Befeuchten der Druckplatte an Rotationsdruckmaschinen - Google Patents

Vorrichtung zum Befeuchten der Druckplatte an Rotationsdruckmaschinen Download PDF

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Publication number
EP0132626B1
EP0132626B1 EP84107606A EP84107606A EP0132626B1 EP 0132626 B1 EP0132626 B1 EP 0132626B1 EP 84107606 A EP84107606 A EP 84107606A EP 84107606 A EP84107606 A EP 84107606A EP 0132626 B1 EP0132626 B1 EP 0132626B1
Authority
EP
European Patent Office
Prior art keywords
dampening
roller
medium
metering roller
metering
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.)
Expired
Application number
EP84107606A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0132626A2 (de
EP0132626A3 (en
Inventor
Dimitrios Pyliotis
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 AT84107606T priority Critical patent/ATE38490T1/de
Publication of EP0132626A2 publication Critical patent/EP0132626A2/de
Publication of EP0132626A3 publication Critical patent/EP0132626A3/de
Application granted granted Critical
Publication of EP0132626B1 publication Critical patent/EP0132626B1/de
Expired 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
    • B41F7/28—Damping devices using brushes
    • 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 device for moistening the printing plate on rotary printing presses according to the preamble of claim 1.
  • Such a dampening system is known from DE-A 23 28 953 and serves to wet the printing plate with an even dampening solution layer before the ink is applied.
  • the brush roller provided here must be placed hard against the metering roller in order to tear open the paint-liquid coating. This is intended to improve the rubbing of the highly viscous paint.
  • Another type (GB-A 362 131) uses brushes on the dampening box roller, which are intended to brush off the too much conveyed dampening solution. These brushes are not intended to evaporate dampening solution.
  • the object of the invention is to design a device of the type mentioned in the introduction in such a way that even with very small amounts of dampening solution, sensitive metering is achieved in certain areas of the printing plate, without any great technical effort.
  • the object is achieved according to the characterizing features of claim 1.
  • the advantage of this solution is that by contacting the bristles of the brush roller with the metering roller, very small amounts of dampening solution are removed from it, which volatilize as the brush roller rotates further. This effect is achieved by the multiplication of the surface of the removed dampening solution film and the higher drying speed achieved thereby. With a dampening solution film of about 5-10 micrometers thick on the metering roller, the amount of dampening solution removed by the brush roller is normally sufficient to reduce the excess supply of dampening solution in the respective zone.
  • a printing plate is clamped on the plate cylinder 1 and is essentially moistened by application rollers 2, 3. Both application rollers are in contact via an intermediate roller 4.
  • the three rollers 2-4 rotate at the peripheral speed of the plate cylinder.
  • the metering roller 5 has a hard, water-friendly surface and rolls off with the wet box roller 6, which has an elastic surface.
  • the dampening box roller 6 rotates partially in the dampening solution 7, which is provided in a dampening solution box 8.
  • the dampening solution entrained by the dampening roller 6 is metered between the latter and the metering roller 5 by the setting pressure to such an extent that only a dampening agent film of about 5-10 micrometers is present on the metering roller 5.
  • the metering roller 5 is assigned a brush roller 9, the z. B. rolls at the peripheral speed of the metering roller 5.
  • the bristles 10 absorb small amounts of dampening solution from the metering roller 5 and allow them to evaporate briefly due to their enlarged surface.
  • the brush roller 9 can only take up a partial length of the metering roller 5 and is mounted on levers 11 which are fastened on a crossbar 12.
  • the levers 11 are arranged on a clamping body 18 and fastened both pivotably and laterally.
  • adjustable wipers 13 can be provided in certain areas, which cause the dampening solution to be sprayed off.
  • the sprayed dampening solution is supplied to the dampening solution supply 7 by means of orifices 14, 15, which are fastened to a clamping body 18 which can be displaced with the levers 11, via the dampening box roller 6.
  • suction nozzles 16 which suck off the excess dampening solution or cause evaporation by the suction effect.
  • the suction nozzles 16 are connected via a hose line 17 to a suction unit, not shown. The suction effect can be set differently for the individual suction nozzles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Discharge By Other Means (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
EP84107606A 1983-07-23 1984-06-30 Vorrichtung zum Befeuchten der Druckplatte an Rotationsdruckmaschinen Expired EP0132626B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84107606T ATE38490T1 (de) 1983-07-23 1984-06-30 Vorrichtung zum befeuchten der druckplatte an rotationsdruckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3326699 1983-07-23
DE3326699A DE3326699C1 (de) 1983-07-23 1983-07-23 Vorrichtung zum Befeuchten einer Druckplatte

Publications (3)

Publication Number Publication Date
EP0132626A2 EP0132626A2 (de) 1985-02-13
EP0132626A3 EP0132626A3 (en) 1985-10-02
EP0132626B1 true EP0132626B1 (de) 1988-11-09

Family

ID=6204815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84107606A Expired EP0132626B1 (de) 1983-07-23 1984-06-30 Vorrichtung zum Befeuchten der Druckplatte an Rotationsdruckmaschinen

Country Status (7)

Country Link
US (1) US4624182A (sv)
EP (1) EP0132626B1 (sv)
JP (2) JPS6042042A (sv)
AT (1) ATE38490T1 (sv)
CA (1) CA1237944A (sv)
DE (1) DE3326699C1 (sv)
ES (1) ES533303A0 (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH089225B2 (ja) * 1985-06-03 1996-01-31 東芝機械株式会社 印刷機における過剰湿し水除去装置
JPS62288041A (ja) * 1986-06-09 1987-12-14 Tokyo Kikai Seisakusho Ltd メッシュローラーの水取り装置
US5264899A (en) * 1992-10-21 1993-11-23 Xerox Corporation Sheet moisture replacement system using porous rolls
JPH0644870U (ja) * 1992-11-14 1994-06-14 株式会社淀川製鋼所 断熱二重屋根
DE4429047A1 (de) * 1994-08-16 1996-02-22 Heidelberger Druckmasch Ag Vorrichtung zum Waschen der Mantelfläche von Zylindern einer Rotationsdruckmaschine
DE102004006231B3 (de) * 2004-02-09 2005-08-04 Koenig & Bauer Ag Verfahren zum Transportieren von Feuchtmittel von einer ersten Walze an die Oberfläche eines Formzylinders einer Druckmaschine
DE102008003239B4 (de) * 2007-02-06 2015-12-03 Heidelberger Druckmaschinen Ag Verfahren zum Betreiben eines Feuchtwerks einer Druckmaschine
JP5069523B2 (ja) * 2007-08-31 2012-11-07 株式会社加貫ローラ製作所 オフセット印刷機の給水装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US176193A (en) * 1876-04-18 Improvement in damping apparatus for lithographic presses
US1364257A (en) * 1918-04-20 1921-01-04 Alfred D Hunt Dampening-regulator for lithographic presses
DE548280C (de) * 1929-08-28 1932-04-08 Franz Zimmer S Erben G M B H Vorrichtung zum Reinigen der Musterwalzen waehrend des Druckens an mehrfarbigen Zeugdruckmaschinen
GB362131A (en) * 1930-11-14 1931-12-03 William Cyril Fowler Improvements in and relating to printing machines
DE549437C (de) * 1931-03-26 1932-04-27 Heinrich Renck Verfahren zum Auffrischen amalgamierter Stellen von Amalgamdruckformen
DE616773C (de) * 1932-10-27 1935-08-10 Jagenberg Werke Ag Vorrichtung zum Feuchten laufender Bahnen aus Papier o. dgl.
US2162248A (en) * 1939-03-29 1939-06-13 Raymond C Delaplane Water control roller for offset presses
US2580667A (en) * 1947-10-21 1952-01-01 Time Inc Water motion for offset presses
DE804933C (de) * 1949-11-01 1951-05-04 Faber & Schleicher A G Abquetschvorrichtung fuer Feuchtwerke an Druckmaschinen
US2804693A (en) * 1955-09-07 1957-09-03 Levey Fred K H Co Inc Printing
DE1127370B (de) * 1958-05-24 1962-04-12 William Gegenheimer Co Inc Feuchtwerk fuer Rotationsflachdruckmaschinen
US3257940A (en) * 1962-11-23 1966-06-28 Dorothy M Strudwick Dampening system for lithographic offset printing presses
US3106154A (en) * 1963-01-08 1963-10-08 Miller Printing Machinery Co Dampener for printing presses
US3343484A (en) * 1964-12-16 1967-09-26 Harold P Dahlgren Lithographic dampener with skewed metering roller
DE1940661C3 (de) * 1969-08-09 1973-07-12 Roland Offsetmaschf Feuchteinrichtung fuer lithographische Druckmaschinen
DE1962363A1 (de) * 1969-12-12 1971-06-16 Koenig & Bauer Schnellpressfab Filmfeuchtwerk fuer Offsetdruckmaschinen
DE2328953C3 (de) * 1973-06-07 1975-12-11 Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg Färb- und Feuchtwerk für Rotations-Offsetdruckmaschinen
US4143596A (en) * 1977-05-04 1979-03-13 Ivett Robert W Lithographic press dampening system
DE2948986C2 (de) * 1979-12-05 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Medizinische Untersuchungsanlage
JPS57107837A (en) * 1980-12-25 1982-07-05 Akiyama Insatsuki Seizo Kk Water supplying mechanism in printing machine

Also Published As

Publication number Publication date
DE3326699C1 (de) 1984-08-16
CA1237944A (en) 1988-06-14
EP0132626A2 (de) 1985-02-13
ATE38490T1 (de) 1988-11-15
JPH0249634B2 (sv) 1990-10-30
EP0132626A3 (en) 1985-10-02
ES8506514A1 (es) 1985-08-01
US4624182A (en) 1986-11-25
JPH022427B2 (sv) 1990-01-18
ES533303A0 (es) 1985-08-01
JPS6042042A (ja) 1985-03-06
JPS6042043A (ja) 1985-03-06

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