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EP0764524A2 - Dispositif d'encrage court - Google Patents

Dispositif d'encrage court Download PDF

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Publication number
EP0764524A2
EP0764524A2 EP96114853A EP96114853A EP0764524A2 EP 0764524 A2 EP0764524 A2 EP 0764524A2 EP 96114853 A EP96114853 A EP 96114853A EP 96114853 A EP96114853 A EP 96114853A EP 0764524 A2 EP0764524 A2 EP 0764524A2
Authority
EP
European Patent Office
Prior art keywords
inking
roller
short
rollers
unit
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Withdrawn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
EP96114853A
Other languages
German (de)
English (en)
Other versions
EP0764524A3 (fr
Inventor
Thomas Böck
Wolfgang Schönberger
Norbert Dr. Dylla
Thomas Dr. John
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 EP0764524A2 publication Critical patent/EP0764524A2/fr
Publication of EP0764524A3 publication Critical patent/EP0764524A3/fr
Withdrawn legal-status Critical Current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
    • B41F31/00—Inking arrangements or devices

Definitions

  • the invention relates to a short inking unit for an offset printing machine with an anilox roller onto which printing ink can be applied and with a first ink application roller for applying the printing ink from the anilox roller to a forme cylinder.
  • a short inking unit for an offset web-fed rotary printing press is already known from WO 91/13761, in which the blanket cylinder, the forme cylinder and the inking roller each have the same diameter.
  • printing ink is transported from a chambered doctor blade system onto the inking roller.
  • the diameter of the anilox roller is smaller than that of the inking roller. Because of the large moments of inertia of the anilox roller and the inking roller, both z. B. driven by gears.
  • the fact that the inking roller has the same diameter as the forme cylinder ensures that the printing ink is printed without stenciling.
  • inking rollers and rider rollers with a much smaller diameter, which are driven by friction.
  • the additional splitting points remove water from the paint and thus reduce the water content of the paint.
  • the lower water content of the printing ink results in a higher color density and a more brilliant printout.
  • the additional rollers neutralize any images of the engraved structure of the anilox roller on the inking roller that show up in an unevenly thick ink layer.
  • the disadvantage of the known short inking unit is that the diameter of the inking roller depends on the diameter of the forme cylinder. Because the diameters of the form cylinders change from printing press to printing press, suitably adapted inking units must always be constructed in which the inking roller has the same diameter as the form cylinder. Because of the comparatively large diameter of the inking roller each requires its own drive. If in addition to the one inking roller other rollers z. B. rider rollers are provided, the advantage of the complete freedom from stenciling of the single inking roller is partially canceled.
  • a particular advantage of the invention is that the driven inking roller known from the prior art is dispensed with and is replaced by at least one small, non-driven inking roller which is independent of the format of the forme cylinder.
  • the small inking roller can be manufactured much more cost-effectively than the known large inking roller and does not require its own drive.
  • a short inking unit according to the invention has a more compact structure due to the small format of the inking roller and is easier to install within a printing unit than the known short inking units.
  • the compact design of the single drum roller there is more space available for the chamber doctor blade, the ink fountain and the dampening unit.
  • a printing unit 1 (FIG. 1) of a web offset printing press has a form cylinder 3, a transfer cylinder 4 and a printing cylinder 5 for imaging a printing material web 2.
  • An inking unit 6 and a dampening unit 7 are arranged below the forme cylinder 3.
  • the inking unit 6 has an inking system 8, for example a chamber doctor blade or a spray inking unit.
  • the inking system 8 applies printing ink to an anilox roller 9.
  • the anilox roller 9 transfers the printing ink to an inking roller 10, which has a much smaller diameter than the forme cylinder 3.
  • An ink roller 11 arranged as a rider roller is in contact with the inking roller 10 and is driven by friction with the inking roller 10.
  • the inking unit 6 has a second inking roller 12.
  • the inking roller 12 is in contact with the inking roller 11 and is driven by this by friction.
  • the inking roller 11 and the inking roller 12 are preferably arranged as shown in FIG. 2. However, they can also be attached between the inking roller 10 and the dampening unit 7.
  • the inking roller 11 is present, which in this case is in contact with a further inking roller 13.
  • the inking roller 13 is arranged between the inking roller 11 and the anilox roller 9, with which it is also in contact.
  • the inking rollers 11 and 13 can also be arranged between the inking roller 10 and the dampening unit 7 in this embodiment.
  • the inking roller 11 is preferably designed as an oscillating roller.
  • the other rollers ie the inking roller 13 and the inking rollers 10, 12, can also be designed as iridescent rollers.
  • the inking rollers 10, 12 preferably have different diameters than the inking rollers 11, 13.
  • the anilox roller 9 is driven either directly via a gear transmission together with the forme cylinder 3 or by its own regulated motor.
  • the speed of rotation of the anilox roller 9 is preferably selected so that it has a lead or lag of 2 to 3% compared to the speed of rotation of the forme cylinder 3.
  • the invention provides a compact short inking unit 6 for an offset printing press, which has at least one first inking roller 10, the diameter of which is smaller than that of the forme cylinder 3.
  • the inking roller 10 is inked by a inking system 8, for example a chamber doctor, via an anilox roller 9 with printing ink.
  • a inking system 8 for example a chamber doctor
  • anilox roller 9 with printing ink.
  • inking roller 11 which is arranged, for example, as a rider roller on the first inking roller 10.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP96114853A 1995-09-22 1996-09-17 Dispositif d'encrage court Withdrawn EP0764524A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995135266 DE19535266A1 (de) 1995-09-22 1995-09-22 Kurzfarbwerk
DE19535266 1995-09-22

Publications (2)

Publication Number Publication Date
EP0764524A2 true EP0764524A2 (fr) 1997-03-26
EP0764524A3 EP0764524A3 (fr) 1997-06-11

Family

ID=7772894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96114853A Withdrawn EP0764524A3 (fr) 1995-09-22 1996-09-17 Dispositif d'encrage court

Country Status (2)

Country Link
EP (1) EP0764524A3 (fr)
DE (1) DE19535266A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19753136A1 (de) * 1997-11-29 1999-06-10 Koenig & Bauer Ag Kammerrakelauftragwerk
EP0903227A3 (fr) * 1997-08-07 1999-07-07 Kba-Planeta Ag Tour d'impression d'une machine à imprimer
WO2000002729A3 (fr) * 1998-07-03 2000-05-04 Koenig & Bauer Ag Mecanisme d'encreur court pour machines d'imprimerie rotatives
WO2001087036A3 (fr) * 2000-05-17 2002-06-20 Koenig & Bauer Ag Dispositif d'encrage d'une machine d'impression par rotative
EP1698463A3 (fr) * 2005-03-03 2007-06-27 MAN Roland Druckmaschinen AG Dispositif de mouillage pour une unité d'impression offset d'une machine d'impression
DE102008015531A1 (de) * 2008-03-25 2009-10-01 Koenig & Bauer Aktiengesellschaft Kurzfarbwerk für eine Rotationsdruckmaschine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2161562C1 (ru) * 1997-05-09 2001-01-10 Кениг Унд Бауер Акциенгезельшафт Красочный аппарат (варианты)
DE10329426B4 (de) * 2003-07-01 2007-03-22 Koenig & Bauer Ag Farbwerk
DE102005030127A1 (de) * 2005-06-28 2007-01-04 Maschinenfabrik Wifag Gegenläufige Farbreiber
DE102006004568A1 (de) * 2006-02-01 2007-08-02 Koenig & Bauer Aktiengesellschaft Kurzfarbwerk für eine Druckmaschine
DE102014006504A1 (de) 2014-05-03 2015-11-05 Georg Schneider Kurzfarbwerk

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US652113A (en) * 1899-09-08 1900-06-19 Herbert H Jacobus Inking apparatus.
BE792367A (fr) * 1971-12-06 1973-03-30 Vickers Ltd
BE857275A (fr) * 1975-09-15 1977-11-14 Addressograph Multigraph Systeme et procede de fourniture d'encre
US4208963A (en) * 1978-04-18 1980-06-24 Dahlgren Manufacturing Company Newspaper printing system
FR2526370B1 (fr) * 1982-05-10 1986-01-17 Mourrellon Georges Procede et dispositif d'encrage pour machine d'imprimerie
DD282663A5 (de) * 1988-03-25 1990-09-19 Polygraph Leipzig Auftragwerk fuer druckmaschinen
WO1991013761A1 (fr) * 1990-03-03 1991-09-19 Albert-Frankenthal Aktiengesellschaft Mecanisme d'encrage court pour rotative

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0903227A3 (fr) * 1997-08-07 1999-07-07 Kba-Planeta Ag Tour d'impression d'une machine à imprimer
DE19753136A1 (de) * 1997-11-29 1999-06-10 Koenig & Bauer Ag Kammerrakelauftragwerk
DE19753136C2 (de) * 1997-11-29 2002-01-31 Koenig & Bauer Ag Kammerrakel-Lackauftragwerk
WO2000002729A3 (fr) * 1998-07-03 2000-05-04 Koenig & Bauer Ag Mecanisme d'encreur court pour machines d'imprimerie rotatives
WO2001087036A3 (fr) * 2000-05-17 2002-06-20 Koenig & Bauer Ag Dispositif d'encrage d'une machine d'impression par rotative
US6886461B2 (en) 2000-05-17 2005-05-03 Koenig & Bauer Aktiengesellschaft Short inking system for a rotary printing machine
EP1457333A3 (fr) * 2000-05-17 2007-08-01 Koenig & Bauer Aktiengesellschaft Dispositif d'encrage court d'une machine d'impression par rotative
EP1698463A3 (fr) * 2005-03-03 2007-06-27 MAN Roland Druckmaschinen AG Dispositif de mouillage pour une unité d'impression offset d'une machine d'impression
DE102008015531A1 (de) * 2008-03-25 2009-10-01 Koenig & Bauer Aktiengesellschaft Kurzfarbwerk für eine Rotationsdruckmaschine

Also Published As

Publication number Publication date
EP0764524A3 (fr) 1997-06-11
DE19535266A1 (de) 1997-04-03

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