EP0141190B2 - Dispositif d'encrage pour rotative d'impression - Google Patents

Dispositif d'encrage pour rotative d'impression Download PDF

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Publication number
EP0141190B2
EP0141190B2 EP84110869A EP84110869A EP0141190B2 EP 0141190 B2 EP0141190 B2 EP 0141190B2 EP 84110869 A EP84110869 A EP 84110869A EP 84110869 A EP84110869 A EP 84110869A EP 0141190 B2 EP0141190 B2 EP 0141190B2
Authority
EP
European Patent Office
Prior art keywords
roller
ink
inking
dampening
rollers
Prior art date
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Expired - Lifetime
Application number
EP84110869A
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German (de)
English (en)
Other versions
EP0141190B1 (fr
EP0141190A1 (fr
Inventor
Albrecht Josef Germann
Jürgen Ferdinand Franz Münker
Erich Georg Wieland
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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
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Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0141190A1 publication Critical patent/EP0141190A1/fr
Publication of EP0141190B1 publication Critical patent/EP0141190B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices

Definitions

  • the invention relates to a single-strand inking unit according to the preamble of claim 1.
  • DE-OS 2 301 692 shows a single-strand inking unit for a rotary offset printing press with a plurality of ink transport and ink application rollers.
  • a dampening system feeds dampening solution to the first inking roller.
  • the printing ink is fed to the printing plate via a rider roller designed as a friction roller and two inking rollers.
  • DE-OS 3 146 223 describes a two-strand inking unit with a dampening unit.
  • the inking unit has five application rollers.
  • the ink is supplied in a main and a secondary line via rider rollers to the second / third, and the fourth / fifth application roller.
  • the two application roller groups are not bridged by a rider roller.
  • the dampening solution is applied to the printing plate via the first application roller.
  • a disadvantage of offset inking units in which a main ink stream is directed to the front and a secondary stream to the rear inking rollers is that an ink layer containing no fountain solution is applied to an ink layer containing fountain solution. This means that a less rapid layer is applied to a quick ink layer. This usually leads to stenciling.
  • An inking unit for a high-pressure rotary printing press with a group of smoothing rollers has become known from «Investigations of non-reactive ink application systems in offset printing», German Research Association for Printing and Reproduction Technology eV, Research Report 3,230, May 1981, Fig. 8 and the accompanying text Applicator roller is connected to a first roller of the smoothing roller group.
  • the invention has for its object to provide an inking unit for an offset rotary printing press in which the ink splitting behavior is improved compared to the prior art.
  • the color draw in the inking unit can be influenced. It can be ruled out in the inking unit according to the invention that a fresh layer of paint is applied to one or more layers of ink containing dampening water, thereby favoring stenciling. An ink layer application of ink layers of approximately the same moisture content or - seen from the first ink application roller - with increasing moisture content can be guaranteed, so that the splitting behavior in the inking unit is optimized
  • a driven ink fountain roller 2 dips into the printing ink of an ink fountain 1 of a rotary printing machine.
  • a pendulum-like reciprocating siphon roller 3 takes fresh printing ink and transfers it to a plastic-coated ink transfer roller 4, which is designed as a friction roller.
  • the ink flow leads from the ink transfer roller 4 to a rubber-coated intermediate roller 6, from there to a second plastic-coated friction roller 7, which is in contact with a second rubber-coated intermediate roller 8.
  • the intermediate roller 8 delivers an ink film to a third plastic-coated friction roller 9. This distributes the printing ink to a first inking roller 11 and a second inking roller 12, both of which ink an offset printing plate 13 of a forme cylinder 14.
  • the second color Carrier roller 12 follows - seen in the direction of rotation of the forme cylinder 14 - a third inking roller 16, a fourth inking roller 17 and a fifth inking roller 18.
  • inking rollers 16, 17, 18 just mentioned also have rolling contact with the printing plate 13 and are like the first and the first second inking roller 11.12 rubber-coated.
  • a first plastic-coated rider roller 20 is placed on the second inking roller 12 and the third inking roller 16.
  • a second, plastic-coated rider roller 21 rolls on the third and fourth inking roller 16, 17, and a third plastic-coated rider roller 22 rolls on the fourth and fifth inking roller 17, 18.
  • the pressure plate 13 is moistened by means of a dampening roller 23, which is in contact with a dampening box roller 24.
  • the dampening solution box roller 24 is immersed in a dampening water in a dampening solution box 26.
  • Damp applicator roller 23 and dampening solution roller 24 are driven together in a known manner by means of an adjustable electric motor.
  • the ink transfer roller 4, rubbing roller 7, rubbing roller 9 and rider roller 21 are driven by the main drive of the printing press.
  • the remaining rollers of the inking unit 3, 6, 8, 11, 12, 20, 16, 17, 18, 22 are driven via friction by rollers 4, 7, 9, 21 or cylinders 14 abutting them.
  • a second dampening unit 27, 28, 29 can be provided in addition to the dampening unit 23, 24, 26.
  • the last inking roller 18 is in contact with a dampening roller 27.
  • the dampening application roller 27 is in contact with a dampening solution box roller 28, which is immersed in the dampening liquid of a dampening solution box 29. Damp applicator roller 27 and dampening solution roller 28 are driven together by a controllable electric motor in a known manner.
  • first dampening unit 23, 24, 26 is dispensed with or switched off, and the second dampening unit 27, 28, 29 is maintained or switched on.
  • the smoothness of the offset printing ink on the inking rollers 11, 12, 16, 17, 18 - seen in the form cylinder rotation direction - of the inking roller to inking roller decreases when the dampening unit 27, 28, 29 dampens on the last inking roller 18.
  • a good inking of the offset printing roller is achieved when the smoothness of the offset printing ink on the inking rollers 11, 12, 16, 17, 18 - seen in the direction of the cylinder rotation - remains approximately the same from inking roller to inking roller. This is achieved when the first dampening takes place on the first inking roller 11, or the dampening unit 23, 24, 26 dampens on it.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)

Claims (2)

1. Dispositif encreur à une voie pour machine d'impression rotative offset, avec plusieurs rouleaux de transport (4,6,7,8) et rouleaux encreurs (11,12,16,17,18), et avec un dispositif mouilleur amenant un liquide de mouillage à un premier rouleau mouilleur (11) et à un deuxième rouleau mouilleur (23), l'encre étant envoyée à un rouleau chargeur (9) affecté au premier et au deuxième rouleau encreurs (11,12), caractérisé en ce qu'il est prévu cinq rouleaux encreurs (11,12,16,17,18), entre chaque paire desquels est situé un rouleau chargeur (9,20,21,22), et en ce que le liquide de mouillage n'est amené qu'au premier rouleau encreur (11).
2. Dispositif encreur à une voie selon la revendication 1, caractérisé en ce que le premier rouleau chargeur (9) est réalisé sous forme d'un rouleau broyeur.
EP84110869A 1983-09-23 1984-09-12 Dispositif d'encrage pour rotative d'impression Expired - Lifetime EP0141190B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3334470A DE3334470C2 (de) 1983-09-23 1983-09-23 Farbwerk für eine Rotationsdruckmaschine
DE3334470 1983-09-23

Publications (3)

Publication Number Publication Date
EP0141190A1 EP0141190A1 (fr) 1985-05-15
EP0141190B1 EP0141190B1 (fr) 1988-12-07
EP0141190B2 true EP0141190B2 (fr) 1992-06-17

Family

ID=6209886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110869A Expired - Lifetime EP0141190B2 (fr) 1983-09-23 1984-09-12 Dispositif d'encrage pour rotative d'impression

Country Status (4)

Country Link
US (1) US4584940A (fr)
EP (1) EP0141190B2 (fr)
JP (1) JPH07102691B2 (fr)
DE (1) DE3334470C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3637460A1 (de) * 1985-12-21 1987-07-02 Werner J Kotterer Druckplattenbefeuchtungsvorrichtung
DE3706602A1 (de) * 1987-02-28 1988-09-08 Roland Man Druckmasch Farbwerk fuer eine rotations-offsetdruckmaschine
JPH0822591B2 (ja) * 1989-02-10 1996-03-06 株式会社東京機械製作所 印刷機におけるインキ供給装置
US5341733A (en) * 1990-03-03 1994-08-30 Albert Frankenthal Aktiengesellschaft Short inking apparatus for a rotary press
JP2882968B2 (ja) * 1993-04-22 1999-04-19 三菱重工業株式会社 オフセット印刷機の給湿装置及び給湿方法
DE29706932U1 (de) * 1997-04-17 1997-06-05 MAN Roland Druckmaschinen AG, 63075 Offenbach Feuchtwerk für eine Offsetdruckmaschine
US6441914B1 (en) 1999-10-08 2002-08-27 Creoscitex Corporation Ltd. Prediction and prevention of offset printing press problems

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA496754A (fr) * 1953-10-13 J. Ste. Marie George Dispositif de sechage pour machines a imprimer
US652113A (en) * 1899-09-08 1900-06-19 Herbert H Jacobus Inking apparatus.
DE678543C (de) * 1937-10-06 1939-07-17 Carl Einar Larsen Verfahren und Vorrichtung zum Feuchten der Flachdruckformen einer Druckmaschine, namentlich beim Offsetdruck
US2972303A (en) * 1955-11-28 1961-02-21 Interchem Corp Method and apparatus for printing ink
DE1140204B (de) * 1960-11-30 1962-11-29 Maschf Augsburg Nuernberg Ag Farbwerk fuer Offsetdruckmaschinen
US3186338A (en) * 1962-11-05 1965-06-01 Miehle Goss Dexter Inc Inking mechanism for rotary printing press
CH422013A (de) * 1964-02-19 1966-10-15 Roland Offsetmaschf Farbwerk
US3448686A (en) * 1966-12-05 1969-06-10 Miehle Goss Dexter Inc Form roller setting and control means
US3508489A (en) * 1969-05-15 1970-04-28 Harris Intertype Corp Fluid applying mechanism
DE2222581B1 (de) * 1972-05-09 1973-11-15 Heidelberger Druckmasch Ag Farbwerk fuer offset-rotationsmaschinen
DE2301692A1 (de) * 1973-01-13 1974-07-18 Maschf Augsburg Nuernberg Ag Farbauftragvorrichtung fuer in ihrer drehrichtung umsteuerbare druckwerke von rotationsdruckmaschinen zum drucken nach dem offset- oder hochdruckverfahren
JPS49118508A (fr) * 1973-03-16 1974-11-13
CH572807A5 (fr) * 1973-05-11 1976-02-27 Maschf Augsburg Nuernberg Ag
JPS54114309A (en) * 1978-02-24 1979-09-06 Dainippon Printing Co Ltd Offset printer
DE2845932A1 (de) * 1978-10-21 1980-04-24 Heidelberger Druckmasch Ag Kombiniertes feucht-farbwerk fuer offsetdruckwerke
DE2902230A1 (de) * 1979-01-20 1980-07-24 Maschf Augsburg Nuernberg Ag Farbwerk
JPS56164866A (en) * 1980-05-26 1981-12-18 Toppan Printing Co Ltd Method and device for feeding ink for printer
DE3116505C2 (de) * 1981-04-25 1985-03-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Rotationsdruckmaschine, die wahlweise für verschiedene Druckverfahren verwendbar ist
DE3146223C2 (de) * 1981-11-21 1985-03-21 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Feucht-Farbwerk für Offsetdruckmaschinen
IT1205429B (it) * 1981-12-15 1989-03-23 Luigi Ghisalberti Metodo e dispositivo di bagnatura nella stampa offset
DE3308067C1 (de) * 1983-03-08 1984-09-13 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Fluessigkeitszufuehrvorrichtung fuer Farbe und Feuchtfluessigkeit einer Rotationsflachdruckmaschine

Also Published As

Publication number Publication date
EP0141190B1 (fr) 1988-12-07
EP0141190A1 (fr) 1985-05-15
US4584940A (en) 1986-04-29
DE3334470A1 (de) 1985-04-11
JPH07102691B2 (ja) 1995-11-08
JPS6092857A (ja) 1985-05-24
DE3334470C2 (de) 1991-01-24

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