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WO2004024451A1 - Systemes d'encrage de machines d'impression rotative - Google Patents

Systemes d'encrage de machines d'impression rotative Download PDF

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Publication number
WO2004024451A1
WO2004024451A1 PCT/DE2003/002694 DE0302694W WO2004024451A1 WO 2004024451 A1 WO2004024451 A1 WO 2004024451A1 DE 0302694 W DE0302694 W DE 0302694W WO 2004024451 A1 WO2004024451 A1 WO 2004024451A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
ink
central roller
inking
central
Prior art date
Application number
PCT/DE2003/002694
Other languages
German (de)
English (en)
Inventor
Georg Schneider
Wolfgang Otto Reder
Original Assignee
Koenig & Bauer Aktiengesellschaft
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
Priority claimed from DE10256173A external-priority patent/DE10256173A1/de
Application filed by Koenig & Bauer Aktiengesellschaft filed Critical Koenig & Bauer Aktiengesellschaft
Priority to EP03794782A priority Critical patent/EP1534522B1/fr
Priority to DE50311976T priority patent/DE50311976D1/de
Priority to AU2003266117A priority patent/AU2003266117A1/en
Priority to AT03794782T priority patent/ATE444173T1/de
Publication of WO2004024451A1 publication Critical patent/WO2004024451A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices

Definitions

  • the invention relates to inking units of rotary printing presses according to the preamble of claim 1, 2 or 3.
  • an inking unit of a rotary printing press with an ink supply to a central roller is known, a first and a second inking roller being provided on a forme cylinder to be inked, and ink being transferred from the central roller to the forme cylinder via a plurality of ink flows.
  • a first ink flow leads from the central roller to a distribution roller which splits the ink flow into a main flow and a secondary flow by transferring the ink to both inking rollers, the main flow to the second, i. H. leads to the inking roller arranged downstream in the direction of rotation of the forme cylinder.
  • the distribution roller transfers ink to the first inking roller in the direction of rotation of the forme cylinder.
  • a larger amount of ink is transferred to the forme cylinder in the main flow compared to the secondary flow.
  • the central roller After the central roller has transferred ink to the rubbing roller, as it rotates further, it transfers ink to an ink transfer roller, which in turn transfers the ink to the second inking roller.
  • an inking unit of a rotary printing press with an ink supply to a central roller is known, two inking rollers that can be set on a forme cylinder to be inked are provided and ink is transferred from the central roller to the forme cylinder via two separate ink flows.
  • the two inking rollers are on the one hand inked directly by the central roller and on the other hand again indirectly by ink transfer rollers, which are arranged between the central roller and each inking roller.
  • This inking unit is also under-loaded, because with this roller arrangement the larger amount of ink is transferred to the second inking roller downstream in the direction of rotation of the forme cylinder.
  • a front-end inking unit of a rotary offset printing press is known, an ink flow separating roller dividing the ink stream fed to it via several rollers into an approximately 60% of this main ink stream and an approx. 40% of this secondary ink stream, the two Part ink flows from the ink flow separating roller are each directed via a distribution roller and in the main ink flow via a single inking roller set on the relevant distribution roller or in the secondary ink flow via two inking rollers set up on the respective distribution roller to a forme cylinder.
  • the invention has for its object to provide inking units of rotary printing presses.
  • the advantages that can be achieved with the invention are, in particular, that the proposed inking unit with comparatively few, e.g. B. manages with five rollers for transferring and distributing paint and is therefore inexpensive to implement. Nevertheless, enough inking rollers, e.g. B. three, available to apply a sufficient amount of ink on a forme cylinder even at high printing speeds.
  • the fact that the central roller and the forme cylinder preferably have an opposite direction of rotation results in a front-load inking unit in which the larger amount of ink is transferred to the inking roller which is arranged first in the direction of rotation of the forme cylinder, ie to the inking roller arranged first in the direction of rotation of the forme cylinder.
  • this inking unit is not prone to stenciling, ie other parts of the printing form which are also printed do not reproduce in full areas because the ink applied in the main flow to the form cylinder is smoothed by the second inking roller before it is transferred to the transfer cylinder.
  • the ink transfer rollers are preferably formed iridescent. Overall, a uniform ink application is achieved with the proposed inking unit on the forme cylinder to be inked, ie on the printing forms spanned on its outer surface.
  • the changed direction of rotation of the central roller also has the advantage that a working doctor blade of a chamber doctor blade is arranged in the direction of rotation of the central roller below, ie essentially in the direction of gravity, and prevents the ink from accumulating over the working doctor blade and leading to contamination.
  • FIG. 1 shows an inking unit with ink transfer rollers and ink application rollers
  • FIG. 2 the inking unit of FIG. 1 additionally ' with friction rollers.
  • Both figures show an inking unit of a rotary printing press with an ink supply to a central roller 01, the z. B. is designed as an anilox roller 01.
  • the central roller 01 is thus the first, preferably continuously ink-absorbing roller 01 in the inking unit and serves subsequent rollers 08; 09 as a color source.
  • the ink is fed to the central roller 01 z. B. from an ink fountain 02, in particular by means of a plurality of squeegees 18; 19 color is transferred to the outer surface of the central roller 01.
  • the doctor blade 18; 19 belong to a preferably laterally on the central roller 01 Chamber doctor blade 03 arranged in the axial direction thereof with a doctor blade chamber, a working doctor blade 18 at the bottom of the doctor blade chamber, ie essentially in the direction of gravity G, and a closing doctor blade 19 at the top of the doctor blade chamber, ie essentially counter to the direction of gravity, in the direction of rotation of the central roller 01 G is arranged.
  • the doctor blade chamber is filled with ink, the ink usually being pressurized.
  • the direction of rotation of the central roller 01 is selected such that the central roller 01 passes at least essentially the working doctor 18 in the direction of gravity G during the ink application due to the essentially horizontal arrangement of the chamber doctor blade 03 with respect to the central roller 01.
  • the working squeegee 18 is therefore advantageously within an opening angle ⁇ opening from a center M of the central roller 01 and extending from a horizontal H running through the center M of the central roller 01 on both sides with less than 45 °, preferably with less than 15 ° central roller 01 employed.
  • the ink supply to the central roller 01 can, however, also take place as an alternative to the chamber doctor blade 03 by means of a pump or an ink spraying device.
  • a printing material 07 e.g. B. a material web 07, in particular a paper web 07 printed.
  • At least one printing form (not shown) is clamped on the lateral surface of the forme cylinder 04 and is held in a holding device 14 arranged on the circumference of the forme cylinder 04.
  • two printing forms can be applied in the direction of the circumference of the forme cylinder 04.
  • A; B each have an ink transfer roller 08; 09 provided, which in turn with at least one of the forme cylinder 04 and one of the Ink transfer rollers 08; 09 adjustable inking roller 11; 12; 13 cooperate.
  • A; B at least one at the same time on the central roller 01 and on at least one of the inking rollers 11; 12; 13 adjustable ink transfer roller 08; 09 may be provided.
  • three inking rollers 11; 12; 13 is provided, wherein in the direction of rotation of the forme cylinder 04 a first inking roller 11 is arranged in front of a second inking roller 12 and a third inking roller 13 is provided which is attached to both the forme cylinder 04 and to one of the inking rollers 08; 09, preferably on the second ink transfer roller 09.
  • the first ink transfer roller 08 is arranged in front of the second ink transfer roller 09, so that the first ink transfer roller 08 receives the larger amount of ink from the central roller 01 because it is the first in the direction of rotation of the central roller 01 that from the chamber doctor blade 03 onto the
  • the lateral surface of the central roller 01 absorbs the paint applied according to the laws of ink splitting. Only the amount of ink remaining on the lateral surface of the central roller 01 after this first ink transfer is then available for an at least partial transfer to the second ink transfer roller 09 when the central roller 01 is rotated further.
  • the direction of rotation of the forme cylinder 04 and the transfer cylinder 06 and that of the rollers 01; 08; 09; 11; 12; 13 is indicated in each of the two figures by an arrow.
  • the central roller 01 and the forme cylinder 04 preferably have an opposite direction of rotation. It is thereby achieved in the example shown in the figures that the ink flow A transfers to the ink application roller 11, which is the first in the direction of rotation of the forme cylinder 04, a larger amount of ink compared to the other ink flow B.
  • the inking unit is therefore front-heavy.
  • the larger quantity of ink applied is due to the fact that the forme cylinder 04 downstream inking rollers 12; 13 smoothed, which is why the proposed inking system is not stenciled.
  • the ink flow A running over the first ink transfer roller 08 and the first ink application roller 11 thus forms the main flow A for the ink transfer from the central roller 01 to the forme cylinder 04, whereas the ink flow B forms a first secondary flow B, of which in the example shown by the third, both to the second ink transfer roller 09 and to the forme cylinder 04, the inking roller 13, a second branch flow C is branched off.
  • a uniform application of ink on the outer surface of the forme cylinder 04 can also be promoted in that at least one ink application roller 11; 12; 13 or an ink transfer roller 08; 09 changes at least slightly. At least the second inking roller 12 or the third inking roller 13 preferably oscillate in order to rub the ink application. Furthermore, as can be seen from FIG. 2, at least one of the ink transfer rollers 08; 09 adjustable friction roller 16; 17 may be provided.
  • the ink transfer rollers 08; 09, the inking rollers 11; 12; 13 or the at least one friction roller 16; 17 to the rollers 01; 08; 09; 11; 12; 13; 16; 17 or on the forme cylinder 04 are either adjustable or removable.
  • the central roller 01, the ink transfer rollers 08; 09, the inking rollers 11; 12; 13 or the at least one friction roller 16; 17 at least partially an oleophilic lateral surface.

Landscapes

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

Abstract

La présente invention concerne des systèmes d'encrage, notamment des systèmes d'encrage courts, d'une machine d'impression rotative, comprenant une alimentation en encre au niveau d'un cylindre central (01). Selon l'invention, au moins deux circulations d'encre s'étendent du cylindre central à un cylindre gravé destiné à recevoir l'encre, avec un seul cylindre de transfert d'encre et au moins deux cylindres d'application d'encre (11,12,13) qui peuvent être mis en place contre le cylindre gravé. L'alimentation en encre au niveau du cylindre central (01) s'effectue dans le mode de réalisation préféré au moyen d'une racle à réservoir (03), le sens de rotation du cylindre central étant sélectionné de sorte que le cylindre central passe au niveau de la racle active dans le sens de la pesanteur.
PCT/DE2003/002694 2002-09-06 2003-08-09 Systemes d'encrage de machines d'impression rotative WO2004024451A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03794782A EP1534522B1 (fr) 2002-09-06 2003-08-09 Systemes d'encrage de machines d'impression rotative
DE50311976T DE50311976D1 (de) 2002-09-06 2003-08-09 Farbwerke von rotationsdruckmaschinen
AU2003266117A AU2003266117A1 (en) 2002-09-06 2003-08-09 Rotary press inking units
AT03794782T ATE444173T1 (de) 2002-09-06 2003-08-09 Farbwerke von rotationsdruckmaschinen

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10241783 2002-09-06
DE10241783.0 2002-09-06
DE10256173A DE10256173A1 (de) 2002-09-06 2002-12-02 Farbwerke von Rotationsdruckmaschinen
DE10256173.7 2002-12-02

Publications (1)

Publication Number Publication Date
WO2004024451A1 true WO2004024451A1 (fr) 2004-03-25

Family

ID=31995055

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/002694 WO2004024451A1 (fr) 2002-09-06 2003-08-09 Systemes d'encrage de machines d'impression rotative

Country Status (3)

Country Link
EP (1) EP1534522B1 (fr)
AU (1) AU2003266117A1 (fr)
WO (1) WO2004024451A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007134919A1 (fr) 2006-05-23 2007-11-29 Koenig & Bauer Aktiengesellschaft Mécanisme d'encrage de presse rotative comprenant un cylindre porte-film
WO2007135155A3 (fr) * 2006-05-23 2008-01-10 Koenig & Bauer Ag Dispositifs disposés dans un groupe d'impression d'une presse rotative
DE102006042590B4 (de) * 2006-09-11 2009-12-17 Koenig & Bauer Aktiengesellschaft Rotationsdruckmaschine mit mindestens einem eine Farbstromtrennwalze aufweisenden Farbwerk
DE102006030057B4 (de) * 2006-05-23 2009-12-24 Koenig & Bauer Aktiengesellschaft Farbwerk einer Rotationsdruckmaschine
CN102059852A (zh) * 2010-11-17 2011-05-18 东莞市中崎机械有限公司 转轮印刷机印刷单元的传墨系统
CN101448644B (zh) * 2006-05-23 2011-06-08 柯尼格及包尔公开股份有限公司 轮转印刷机印刷机组中的组合装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR716863A (fr) * 1931-05-09 1931-12-29 Encreur perfectionné
DE1214704B (de) 1959-04-25 1966-04-21 Gerhard Ritzerfeld Farbwerk fuer Rotationsflachdruckvervielfaeltiger zum Abdrucken von lithographischen Druckformen
DE4439144A1 (de) * 1994-11-03 1996-05-09 Roland Man Druckmasch Farbwerk
WO1998051500A1 (fr) 1997-05-09 1998-11-19 Koenig & Bauer Aktiengesellschaft Dispositif d'encrage
US5983797A (en) * 1997-11-17 1999-11-16 Howard W. DeMoore End seal engaging bearer of anilox roller assembly
US6095045A (en) * 1996-06-19 2000-08-01 Man Roland Druckmaschinen Ag Device for filling depressions in a cylinder; doctor blade device for this purpose and process for changing it

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR716863A (fr) * 1931-05-09 1931-12-29 Encreur perfectionné
DE1214704B (de) 1959-04-25 1966-04-21 Gerhard Ritzerfeld Farbwerk fuer Rotationsflachdruckvervielfaeltiger zum Abdrucken von lithographischen Druckformen
DE4439144A1 (de) * 1994-11-03 1996-05-09 Roland Man Druckmasch Farbwerk
DE4439144C2 (de) 1994-11-03 1997-04-30 Roland Man Druckmasch Farbwerk einer Rotationsoffsetdruckmaschine
US6095045A (en) * 1996-06-19 2000-08-01 Man Roland Druckmaschinen Ag Device for filling depressions in a cylinder; doctor blade device for this purpose and process for changing it
WO1998051500A1 (fr) 1997-05-09 1998-11-19 Koenig & Bauer Aktiengesellschaft Dispositif d'encrage
US5983797A (en) * 1997-11-17 1999-11-16 Howard W. DeMoore End seal engaging bearer of anilox roller assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007134919A1 (fr) 2006-05-23 2007-11-29 Koenig & Bauer Aktiengesellschaft Mécanisme d'encrage de presse rotative comprenant un cylindre porte-film
WO2007135155A3 (fr) * 2006-05-23 2008-01-10 Koenig & Bauer Ag Dispositifs disposés dans un groupe d'impression d'une presse rotative
EP2033785A2 (fr) 2006-05-23 2009-03-11 Koenig & Bauer Aktiengesellschaft Agencement dans une unité d'impression d'une presse rotative
DE102006030057B4 (de) * 2006-05-23 2009-12-24 Koenig & Bauer Aktiengesellschaft Farbwerk einer Rotationsdruckmaschine
CN101448644B (zh) * 2006-05-23 2011-06-08 柯尼格及包尔公开股份有限公司 轮转印刷机印刷机组中的组合装置
US8001895B2 (en) 2006-05-23 2011-08-23 Koenig & Bauer Aktiengesellschaft Inking unit of a rotary press, comprising a film roller
US8006617B2 (en) 2006-05-23 2011-08-30 Koenig & Bauer Aktiengesellschaft Assemblies in a printing couple of a rotary printing press
DE102006042590B4 (de) * 2006-09-11 2009-12-17 Koenig & Bauer Aktiengesellschaft Rotationsdruckmaschine mit mindestens einem eine Farbstromtrennwalze aufweisenden Farbwerk
CN102059852A (zh) * 2010-11-17 2011-05-18 东莞市中崎机械有限公司 转轮印刷机印刷单元的传墨系统

Also Published As

Publication number Publication date
EP1534522B1 (fr) 2009-09-30
EP1534522A1 (fr) 2005-06-01
AU2003266117A1 (en) 2004-04-30

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