EP0280957B1 - Dispositif d'encrage pour rotative - Google Patents

Dispositif d'encrage pour rotative Download PDF

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Publication number
EP0280957B1
EP0280957B1 EP88102256A EP88102256A EP0280957B1 EP 0280957 B1 EP0280957 B1 EP 0280957B1 EP 88102256 A EP88102256 A EP 88102256A EP 88102256 A EP88102256 A EP 88102256A EP 0280957 B1 EP0280957 B1 EP 0280957B1
Authority
EP
European Patent Office
Prior art keywords
ink
roll
roller
rolls
inking
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 - Lifetime
Application number
EP88102256A
Other languages
German (de)
English (en)
Other versions
EP0280957A3 (en
EP0280957A2 (fr
Inventor
Karl-Heinz Franz
Kurt Difflipp
Heinrich Ochs
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
Priority to AT88102256T priority Critical patent/ATE76812T1/de
Publication of EP0280957A2 publication Critical patent/EP0280957A2/fr
Publication of EP0280957A3 publication Critical patent/EP0280957A3/de
Application granted granted Critical
Publication of EP0280957B1 publication Critical patent/EP0280957B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B41F31/10—Applications of feed or duct rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/15—Devices for moving vibrator-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/32—Lifting or adjusting devices
    • 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
    • B41F7/36—Inking-rollers serving also to apply ink repellants

Definitions

  • the invention relates to an inking unit for a rotary offset printing machine according to the preamble of the second claim.
  • DE-PS 3 334 470 shows a single-strand inking unit for a rotary offset printing press with several ink transport and ink application rollers.
  • the dampening solution is fed to the first inking roller or the last inking roller or both.
  • the ink is fed to a first and second inking roller assigned to the friction roller, five inking rollers each being connected in series on the plate cylinder, between each of which a rider roller is arranged.
  • the first rider roller and the third rider roller are designed as distribution rollers.
  • the ink splitting conditions are changed. If the amount of dampening solution changes in the gap points of the ink flow due to a change in the dampening solution supply by a dampening system, especially when dampening directly into the inking unit, the ink supply (ink supply) must be readjusted in order to obtain the same ink application on the printing plate.
  • Inking units are generally known which share the ink flow in such a way that an ink flow component is fed to the first inking roller (s) and a second ink stream component is fed to the last inking rollers (see, for example, DE-PS 2 302 261, DE-PS 3 434 647, DE-PS 3 143 909).
  • These inking units have a larger number of inking rollers in connection with a distributor roller, from which the two ink streams are transferred to three or more inking rollers connected in series on the plate cylinder.
  • the distributor roller is coupled to the ink supply and, on the other hand, to branch rollers which guide the partial ink strands onto the ink application rollers.
  • the object of the invention is to create an inking unit which, with a low tendency to stenciling, is also insensitive in the ink flow when the dampening solution is changed.
  • the advantages that can be achieved with the invention are in particular in that the inking rollers transfer graded ink transfer components, decreasing from the first inking roller 3 seen in the direction of rotation of the plate cylinder 1 of the two front inking rollers 3, 4 to the last inking roller 6 on the printing plate.
  • the ink flow and thus the ink gradient in the inking unit remain almost constant if, due to changes in the dampening solution supply due to changes in the settings of the dampening unit or due to different amounts of dampening solution on the printing plate, the ink splitting conditions, in particular in the nips between the front distribution roller and the adjacent inking rollers as well as those in this ink ribbon Change branch roller.
  • a driven ink fountain roller 17 dips into the printing ink 19 of an ink fountain 18 of a rotary offset printing machine. From the ink fountain roller 17, a pendulum-like reciprocating lifting roller 16 takes fresh printing ink 19 and transfers it to a plastic-coated ink fountain pen 15. The parts 15 to 18 form the ink supply.
  • the ink flow leads via a rubber-coated ink feed roller 14 to a plastic-coated distributor roller 12. This divides the ink flow into two ink streams, one of which is guided onto a rubber-coated branch roller 11 and the other onto a rubber-coated branch roller 13.
  • the first partial ink flow is passed via the branch roller 13 and an ink transport roller 8, which can optionally be designed as a friction roller, to two front inking rollers 3, 4.
  • the second ink flow is conducted via the branch roller 11 and a rubbing roller 7 onto the first application roller 3 of the two front ink application rollers 3, 4 (see FIG. 4) or additionally onto a further ink application roller 2 which, seen in the direction of rotation of the plate cylinder 1, of the first ink application roller 3 the two front inking rollers 3, 4 is connected upstream (see FIGS. 1 to 3).
  • the second applicator roller 4 of the two front applicator rollers 3, 4 is followed by a rear inking roller 5 and, optionally, another inking roller 6, seen in the direction of rotation of the plate cylinder 1.
  • the inking rollers 5, 6 also have rolling contact with the printing plate and, like the front inking rollers 2 to 4 rubber coated.
  • a plastic-coated friction roller 9 rolls on the inking rollers 4 and 5, and there is one on the inking rollers 5 and 6 plastic-coated inking roller 10 placed as a rider roller.
  • the proportion of ink quantity in the first partial color stream is automatically increased by this amount.
  • the ink transfer proportion of the inking roller 2 (according to FIGS. 1 to 3) or onto the inking roller 3 (according to FIG. 4) is reduced.
  • the ink transfer components of the ink application rollers 3 to 6 increase at the same time by this ink component, the gradation of the ink transfer components of the ink application rollers 3 to 6 being retained in the direction of rotation of the plate cylinder 1.
  • the overall color gradient in the inking unit remains constant and thus also the setting of the ink supply to the inking unit, the color scheme.
  • the effect according to the invention can be improved in a manner not shown in the drawing, in that the first branch roller 13 is designed as an oscillating rubbing roller and / or the first branch roller 13 can be switched on and off or controlled in a clocked manner by the adjacent rollers 8, 12 is stored parkable.
  • the inking rollers 2 to 5 are seen in the direction of rotation of the plate cylinder 1, and are designed to transfer the following maximum ink components: 2 1.Inking roller 2 32% 2.Inking roller 3 38% 3.Inking roller 4 26% 4.Inking roller 5 4% 3 1.Inking roller 2 9% 2.Inking roller 3 49% 3.Inking roller 4 35% 4.Inking roller 5 7% 4 1.Inking roller 3 62% 2.Inking roller 4 32% 3. Ink application roller 5 6%
  • Fig. 5 each show an ink flow to the plate cylinder 1 on the left in the event that the ink transfer takes place undisturbed and on the right in the case that dampening solution supplied hinders the flow in one partial flow, which means a shift in the flow rate to the other partial flow causes.
  • FIG. 6 shows a further embodiment of the invention, in which a parallel ink flow is connected upstream of the front inking roller.
  • the distributor roller 12 and the front inking roller 3 stand by the branch roller provided in the first roller train 13 or by means of the branch roller 11 provided in the second roller train, without further ink transport rollers being interposed, in direct connection with one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Printing Methods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Labeling Devices (AREA)

Claims (9)

  1. Procédé pour amener de l'encre d'impression offset et du fluide de mouillage au cylindre porte-plaque d'une machine imprimante, au moyen de rouleaux applicateurs avant et arrière, vus dans le sens de rotation du cylindre porte-plaque, et au moyen d'un dispositif de dosage de l'encre et du fluide de mouillage prévu en amont des rouleaux applicateurs, l'encre amenée au cylindre porte-plaque étant amenée en un courant d'encre principal, par l'intermédiaire des rouleaux applicateurs avant, au cylindre porte-plaque,
    caractérisé en ce que le courant d'encre principal est partagé en courants partiels parallèles par des moyens de transport d'encre s'étendant et agencés parallèlement, en ce que les courants partiels sont à nouveau réunis, et en ce que le fluide de mouillage est amené essentiellement à l'un des courants d'encre partiels parallèles.
  2. Unité d'encrage pour une machine imprimante rotative offset, dans laquelle l'encre peut être amenée, au moyen d'une alimentation d'encre, à plusieurs rouleaux applicateurs d'encre se trouvant contre le cylindre porte-plaque, par l'intermédiaire d'une pluralité de rouleaux de transport d'encre,
    caractérisée en ce qu'un rouleau distributeur (12) est relié, d'une part, à l'alimentation d'encre (15-18), en ce que, d'autre part, le rouleau distributeur (12) est relié, dans un premier train de rouleaux et dans un deuxième train de rouleaux monté en parallèle au premier train de rouleaux, par l'intermédiaire de rouleaux de dérivation (13, 11), en excluant un autre train de rouleaux pour les autres rouleaux applicateurs arrière (4, 5, 6), à un rouleau applicateur d'encre avant (3), en ce que, des deux trains de rouleaux montés en parallèle, un train de rouleaux est relié a l'alimentation en fluide de mouillage, et en ce que, vu dans le sens de rotation du cylindre porte-plaque (1), un rouleau applicateur d'encre (4), agencé en aval de ce rouleau avant, est relié au moins à un autre rouleau applicateur d'encre arrière (5) par l'intermédiaire d'un rouleau de transport d'encre (9).
  3. Unité d'encrage selon la revendication 3,
    caractérisée en ce qu'un rouleau de transport d'encre disposé en aval du rouleau de dérivation (13, 11) est un rouleau frotteur (7), auquel est associé un autre rouleau applicateur d'encre (2), qui, vu dans le sens de rotation du cylindre porte-plaque (1), est disposé en amont du rouleau applicateur d'encre avant (3).
  4. Unité d'encrage selon les revendications 2 et 3,
    caractérisée en ce qu'un rouleau de transport d'encre (8) disposé en aval du rouleau de dérivation (13, 11) est réalisé en tant que rouleau frotteur oscillant.
  5. Unité d'encrage selon les revendications 2 à 4,
    caractérisée en ce que le rouleau de dérivation (13) est réalisé en tant que rouleau frotteur oscillant.
  6. Unité d'encrage selon les revendications 2 à 4,
    caractérisée en ce que le rouleau de dérivation (13) est monté en pouvant être amené contre et écarté de l'un des rouleaux adjacents (8, 12).
  7. Unité d'encrage selon les revendications 2 à 4,
    caractérisée en ce que le rouleau de dérivation (13) est agencé en pouvant être amené contre et écarté des rouleaux adjacents (8, 12) de façon commandée en cadence.
  8. Unité d'encrage selon les revendications 2 à 7,
    caractérisée en ce qu'une source de fluide de mouillage (20, 21) peut être amenée contre un rouleau applicateur d'encre (2) disposé en amont du rouleau applicateur d'encre avant (3).
  9. Unité d'encrage selon les revendications 2 à 7,
    caractérisée en ce que, vu dans le sens de rotation du cylindre porte-plaque (1), avant les rouleaux (2-18) ou (3-18), une unité de mouillage (20, 21, 22) peut être amenée contre le cylindre porte-plaque (1).
EP88102256A 1987-02-28 1988-02-17 Dispositif d'encrage pour rotative Expired - Lifetime EP0280957B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88102256T ATE76812T1 (de) 1987-02-28 1988-02-17 Farbwerk fuer eine rotations-offsetdruckmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873706602 DE3706602A1 (de) 1987-02-28 1987-02-28 Farbwerk fuer eine rotations-offsetdruckmaschine
DE3706602 1987-02-28

Publications (3)

Publication Number Publication Date
EP0280957A2 EP0280957A2 (fr) 1988-09-07
EP0280957A3 EP0280957A3 (en) 1990-01-31
EP0280957B1 true EP0280957B1 (fr) 1992-06-03

Family

ID=6322059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102256A Expired - Lifetime EP0280957B1 (fr) 1987-02-28 1988-02-17 Dispositif d'encrage pour rotative

Country Status (6)

Country Link
US (1) US5003871A (fr)
EP (1) EP0280957B1 (fr)
JP (1) JP2612020B2 (fr)
AT (1) ATE76812T1 (fr)
BR (1) BR8800892A (fr)
DE (2) DE3706602A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2773316B2 (ja) * 1989-11-08 1998-07-09 日本油脂株式会社 重質燃料油組成物
EP0518892B1 (fr) * 1990-03-03 1994-06-22 Albert-Frankenthal AG Mecanisme d'encrage court pour rotative
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
DE19832722A1 (de) * 1998-07-21 2000-01-27 Roland Man Druckmasch Heberfarbwerk für eine Druckmaschine
DE19956149A1 (de) * 1999-11-23 2001-06-07 Roland Man Druckmasch Farbwerk für eine Druckmaschine
DE10020510A1 (de) 2000-04-26 2001-11-15 Roland Man Druckmasch Dosiersystem zum Einfärben von Walzen in einer Druckmaschine
DE10248517B4 (de) * 2002-10-17 2009-10-15 Manroland Ag Vorrichtung zur Farbführung in einer Offsetdruckmaschine
JP2006062363A (ja) 2004-08-25 2006-03-09 Heidelberger Druckmas Ag 印刷機
EP2033785B1 (fr) * 2006-05-23 2013-01-09 Koenig & Bauer Aktiengesellschaft Agencement dans une unité d'impression d'une presse rotative
CN101495315B (zh) * 2006-05-23 2011-02-02 柯尼格及包尔公开股份有限公司 具有油膜传墨辊的轮转印刷机输墨装置
DE102008007679B4 (de) 2008-02-07 2016-05-25 manroland sheetfed GmbH Druckwerk für eine Verarbeitungsmaschine
DE102008009892B4 (de) 2008-02-19 2015-04-02 manroland sheetfed GmbH Verfahren zum Einfärben einer Druckform in einer Verarbeitungsmaschine
DE102008009891A1 (de) 2008-02-19 2009-08-20 Manroland Ag Verfahren zum Einfärben einer Druckform in einer Verarbeitungsmaschine
DE102008009889A1 (de) 2008-02-19 2009-08-20 Manroland Ag Verfahren zum Einfärben einer Druckform in einer Verarbeitungsmaschine
DE102008009890A1 (de) 2008-02-19 2009-08-20 Manroland Ag Verfahren zum Einfärben einer Druckform in einer Verarbeitungsmaschine
DE102008010803A1 (de) 2008-02-23 2009-08-27 Manroland Ag Verfahren zum Einfärben einer Druckform in einer Verarbeitungsmaschine
DE102010028947A1 (de) 2010-05-12 2011-11-17 Manroland Ag Verfahren zum Steuern einer Verarbeitungsmaschine für Bogenmaterial
DE102011082129A1 (de) 2011-09-05 2013-03-07 manroland sheetfed GmbH Farbwerk in einer Verarbeitungsmaschine
DE102022126853A1 (de) 2022-10-14 2024-04-25 Koenig & Bauer Ag Druckwerk mit verbesserter Walzenanordnung im Farbwerk

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802417A (en) * 1954-11-08 1957-08-13 Spencer D Forbes Auxiliary inking unit for multilith press
US3096710A (en) * 1959-11-09 1963-07-09 Harris Intertype Corp Dampening device for lithographic printing press
DE1140204B (de) * 1960-11-30 1962-11-29 Maschf Augsburg Nuernberg Ag Farbwerk fuer Offsetdruckmaschinen
US3150589A (en) * 1962-03-19 1964-09-29 Glen W Senogles Roller attachment for multilith printing press
DE2106655A1 (de) * 1971-02-12 1972-08-24 Koenig & Bauer Schnellpressfab Walzenfarbwerk für Rotationsdruckmaschinen
DE2302261C3 (de) * 1973-01-18 1981-04-23 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Farbwerk für eine Rotations-Druckmaschine
DE2654007B2 (de) * 1976-11-27 1980-02-07 Heinz-Joachim 7570 Baden- Baden Schinke Farbwerk für Büro-Offsetmaschinen
GB2012675B (en) * 1978-01-20 1982-06-16 Am Int Double ink flow system
JPS5845954A (ja) * 1981-09-12 1983-03-17 Komori Printing Mach Co Ltd オフセツト印刷機のインキ装置
DE3143909C2 (de) * 1981-11-05 1983-11-03 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbwerk für eine Offsetrotationsdruckmaschine
AT389675B (de) * 1982-06-02 1990-01-10 Heidelberger Druckmasch Ag Vorrichtung zur farbprofilabhaengigen feuchtmittelregelung
DE3308067C1 (de) * 1983-03-08 1984-09-13 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Fluessigkeitszufuehrvorrichtung fuer Farbe und Feuchtfluessigkeit einer Rotationsflachdruckmaschine
US4724764B1 (en) * 1983-05-11 1994-09-20 Baldwin Technology Corp Dampening system
DE3334470C2 (de) * 1983-09-23 1991-01-24 Koenig & Bauer AG, 8700 Würzburg Farbwerk für eine Rotationsdruckmaschine
DE3434647C2 (de) * 1984-09-21 1986-07-31 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Farbwerk für Rotationsdruckmaschinen
US4729308A (en) * 1986-08-04 1988-03-08 Am International, Inc. Convertible moisture/ink system in printing or duplicating machines

Also Published As

Publication number Publication date
DE3871551D1 (de) 1992-07-09
JP2612020B2 (ja) 1997-05-21
DE3706602A1 (de) 1988-09-08
EP0280957A3 (en) 1990-01-31
DE3706602C2 (fr) 1989-11-23
ATE76812T1 (de) 1992-06-15
US5003871A (en) 1991-04-02
EP0280957A2 (fr) 1988-09-07
JPS63242548A (ja) 1988-10-07
BR8800892A (pt) 1988-10-04

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