EP0017844A1 - Dispositif d'encrage pour machine à imprimer - Google Patents

Dispositif d'encrage pour machine à imprimer Download PDF

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Publication number
EP0017844A1
EP0017844A1 EP80101732A EP80101732A EP0017844A1 EP 0017844 A1 EP0017844 A1 EP 0017844A1 EP 80101732 A EP80101732 A EP 80101732A EP 80101732 A EP80101732 A EP 80101732A EP 0017844 A1 EP0017844 A1 EP 0017844A1
Authority
EP
European Patent Office
Prior art keywords
inking
cylinder
surface speed
metering
inking 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.)
Ceased
Application number
EP80101732A
Other languages
German (de)
English (en)
Inventor
Ingo Köbler
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 EP0017844A1 publication Critical patent/EP0017844A1/fr
Ceased 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
    • B41F31/004—Driving means for ink rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/002—Heating or cooling of ink or ink 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
    • B41F31/06—Troughs or like reservoirs with immersed or partly immersed, rollers or cylinders

Definitions

  • the invention relates to an inking unit for a printing press with an inking unit cylinder, which forwards the ink supplied to a plate cylinder rotating at approximately the same surface speed and can be adjusted on the two metering rollers, each of which is assigned a doctor blade.
  • Such an inking unit is known from DE-OS 2 052 806. It is provided that the metering rollers rotate at approximately the same surface speed as the inking unit and plate cylinders. It has been found that a satisfactory, uniform, thin layer of paint for application to the plate cylinder cannot yet be achieved with this.
  • the invention has for its object to provide a simply constructed space-saving inking unit of the type mentioned, which provides a uniform, thin layer of ink on the inking cylinder.
  • the inking unit comprises an ink fountain 1, to which the ink to be printed is fed in a manner known per se, not shown in such a way that the ink surface 2 is always approximately at the same height.
  • An ink fountain roller 3 is partially immersed in the ink surface 2.
  • the ink fountain roller 3 can be driven by means of an electric motor 4 via a belt drive 5 at a variable speed. Instead of the belt drive, another drive connection between the ink fountain roller 3 and the electric motor 4 can also be provided.
  • the ink fountain roller 3 is held at both ends in eccentric bearings 6.
  • the eccentric bearings serve to adjust the gap between the ink fountain roller 3 and an inking cylinder 7.
  • the inking cylinder 7 is connected to a plate cylinder 9 via two non-driven applicator rollers 8, which are only carried by friction.
  • the inking cylinder 7 is driven.
  • the drive takes place in a manner known per se from the drive of the plate cylinder 9, so that the inking cylinder 7 and the plate cylinder 9 rotate at approximately the same surface speed. It is therefore also possible to apply the ink directly from the inking cylinder 7 to the plate cylinder 9 so that the application rollers 8 can be omitted.
  • a first metering roller 10 is arranged adjacent to the ink fountain roller 3 such that the ink transferred from the ink fountain roller 3 to the inking cylinder 7 is fed to it.
  • the first metering roller 10 is with. driven by a variable-speed electric motor 11 and a belt drive 12.
  • a variable-speed electric motor 11 and a belt drive 12.
  • the connection between the metering roller and the electric motor can also be configured in another known manner, there is also the possibility of driving the .dosing roller 10 from the electric motor 4.
  • a second metering roller 13 also works together with the ink fountain roller 3, which can also be driven by means of its own electric motor 14 and a belt drive 15 independently of the first metering roller 10 with a variable surface speed which is greater than the surface speed of the ink. work cylinder 7.
  • the two ends of each of the two metering rollers 10, 13 are held in eccentric bearings 16 and 17, with which the gap between each of the two metering rollers 10, 13 and the inking cylinder 7 can be adjusted. To change the gap size can. NEN instead of eccentric bearings, other known means, for example control levers, can be provided.
  • the diameters of the two metering rollers 10, 13 are smaller than half the diameter of the inking cylinder 7.
  • a doctor blade 18 is provided on the side of the two metering rollers 10, 13 facing away from the inking cylinder.
  • the doctor blade 18 is under the action of springs 19, which are supported on a solid support 20, on both metering rollers 10, 13.
  • the inking cylinder 7 is mounted in a side wall 22 of the printing press by means of an axle pin 21.
  • a gearwheel 23 is firmly attached to the journal 21 and meshes with a worm 24, the axis 25 of which is mounted in a housing 26.
  • the housing 26 encompasses the worm 25 and the gear 23 and is rotatable, but non-displaceably placed on the journal 21 in the axial direction.
  • the screw 24 carries a pin 27. on which one end of a lever 28 is mounted, the other end of which is rotatably articulated on a pin 29.
  • the pin 29 is seated on a carrier 30 fixedly connected to the side wall 22.
  • the carrier 30 furthermore has two guide rails 31, between which the lower end of the housing 26 is guided.
  • the metering roller 13 is cooled.
  • the one journal 33 with which the metering roller 13 is mounted in the side wall 22, is provided with an inner bore 34.
  • the tube 35 opens into a head 36 of a cooling water supply line 37.
  • the annular cavity surrounding the tube 35 of the inner bore 34 opens into a head 38 of a cooling water discharge line 39.
  • the lines 37 and 39 and the heads 36 and 38 are at one with the Side wall 22 fixedly connected carrier 40 attached.
  • the heads 36, 38 are also sealed in a manner not shown in relation to the rotating journal 33 or the pipe 35, which is also rotating.
  • the cooling water enters the head 36 through the line 37 and from there through the pipe 35 and distributor bores 42 into the inner cavity 43 of the metering roller 13.
  • the cooling water can then enter through further holes 44 at the other end of the metering roller 13 into the annular cavity formed by the inner hole 34 around the pipe 35 and flow into the cooling water discharge line 39 via the holes 41 and the head 38.
  • any other known cooling device can also be used for this roller.
  • the ink fountain roller 3 rotates at a low surface speed in the direction of arrow b. In doing so, it transports ink from the ink fountain 1 to the inking cylinder 7 rotating at a substantially higher surface speed in the direction of arrow c.
  • This ink then arrives at the first metering roller 10, which acts similarly to a doctor blade, ie. H. limits a metering gap together with the inking cylinder 7. So that no ink wedge forms on the inlet side of this metering gap, which can impair the metering of an ink layer which is uniformly thick over the entire length of the inking cylinder 7, the first metering roller 10 expediently runs continuously at a very low surface speed in the direction of the arrow d.
  • the metering roller 10 is stationary and is only rotated from time to time, for example by a quarter turn.
  • the paint discharged from the gap in the direction of arrow d is scraped off by means of the doctor blade 18, provided that it does not drip directly into the ink fountain 1, so that a largely color-free section of the metering roller 10 is continuously available for gap formation.
  • This metering roller rotates at an s-surface speed that is greater than the surface speed of the inking cylinder 7.
  • the second metering roller 13 more than half from the amount of ink supplied and leads it in the direction of arrow e to the doctor blade 18, from which the ink flows back into the ink fountain 1.
  • the layer thickness of the ink which the inking cylinder 7 supplies to the application rollers 8 can accordingly be varied by adjusting the gap between the metering roller 10 and the inking cylinder 7 and by changing the surface speed of the metering roller 13.
  • the gap between the metering roller 13 and the inking cylinder 7 is to be adjusted in accordance with a change in the gap between the metering roller 10 and the inking cylinder 7.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP80101732A 1979-04-21 1980-04-01 Dispositif d'encrage pour machine à imprimer Ceased EP0017844A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2916291 1979-04-21
DE19792916291 DE2916291A1 (de) 1979-04-21 1979-04-21 Farbwerk fuer eine druckmaschine

Publications (1)

Publication Number Publication Date
EP0017844A1 true EP0017844A1 (fr) 1980-10-29

Family

ID=6068991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80101732A Ceased EP0017844A1 (fr) 1979-04-21 1980-04-01 Dispositif d'encrage pour machine à imprimer

Country Status (4)

Country Link
EP (1) EP0017844A1 (fr)
JP (1) JPS55140563A (fr)
DD (1) DD150726A1 (fr)
DE (1) DE2916291A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495546A1 (fr) * 1980-12-08 1982-06-11 Roland Man Druckmasch Dispositif de vernissage pour machines d'impression
FR2526370A1 (fr) * 1982-05-10 1983-11-10 Mourrellon Georges Procede et dispositif d'encrage pour machine d'imprimerie
GB2278574A (en) * 1993-06-01 1994-12-07 David Edward Mcmanamon Ink transfer means for printing machine
WO2001087036A2 (fr) * 2000-05-17 2001-11-22 Koenig & Bauer Aktiengesellschaft Dispositif d'encrage d'une machine d'impression par rotative
EP1442878A1 (fr) * 2003-02-03 2004-08-04 Kba-Giori S.A. Entraínement du dispositif d'encrage dans une machine d'impression en creux

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19840613A1 (de) * 1998-09-05 2000-03-09 Koenig & Bauer Ag Kurzauftragwerk
DE102006061393A1 (de) * 2006-12-23 2008-06-26 Koenig & Bauer Aktiengesellschaft Kurzfarbwerk für eine Druckmaschine
JP5483531B2 (ja) * 2009-04-30 2014-05-07 富士特殊紙業株式会社 水性インキ使用グラビア印刷機

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1341700A (fr) * 1962-09-21 1963-11-02 Etudes De Machines Speciales Procédé et dispositif d'encrage pour machines d'impression à l'encre grasse
FR86877E (fr) * 1964-11-26 1966-04-29 Etudes De Machines Speciales Procédé et dispositif d'encrage pour machines d'impression à l'encre grasse
US3684561A (en) * 1966-12-05 1972-08-15 Raymond A Labombarde Apparatus and method for applying high viscosity coatings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1341700A (fr) * 1962-09-21 1963-11-02 Etudes De Machines Speciales Procédé et dispositif d'encrage pour machines d'impression à l'encre grasse
FR86877E (fr) * 1964-11-26 1966-04-29 Etudes De Machines Speciales Procédé et dispositif d'encrage pour machines d'impression à l'encre grasse
US3684561A (en) * 1966-12-05 1972-08-15 Raymond A Labombarde Apparatus and method for applying high viscosity coatings

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495546A1 (fr) * 1980-12-08 1982-06-11 Roland Man Druckmasch Dispositif de vernissage pour machines d'impression
FR2526370A1 (fr) * 1982-05-10 1983-11-10 Mourrellon Georges Procede et dispositif d'encrage pour machine d'imprimerie
EP0094320A1 (fr) * 1982-05-10 1983-11-16 Georges Mourrellon Procédé et dispositif d'encrage pour machine d'imprimerie
WO1983004003A1 (fr) * 1982-05-10 1983-11-24 Georges Mourrellon Procede et dispositif d'encrage pour machine d'imprimerie
GB2278574A (en) * 1993-06-01 1994-12-07 David Edward Mcmanamon Ink transfer means for printing machine
WO2001087036A3 (fr) * 2000-05-17 2002-06-20 Koenig & Bauer Ag Dispositif d'encrage d'une machine d'impression par rotative
WO2001087036A2 (fr) * 2000-05-17 2001-11-22 Koenig & Bauer Aktiengesellschaft Dispositif d'encrage d'une machine d'impression par rotative
EP1457333A2 (fr) * 2000-05-17 2004-09-15 Koenig & Bauer Aktiengesellschaft Dispositif d'encrage court 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
EP1442878A1 (fr) * 2003-02-03 2004-08-04 Kba-Giori S.A. Entraínement du dispositif d'encrage dans une machine d'impression en creux
WO2004069538A3 (fr) * 2003-02-03 2005-01-20 Kba Giori Sa Machine d'impression en creux
CN100423938C (zh) * 2003-02-03 2008-10-08 卡巴-乔利有限公司 凹版印刷机中着墨单元的驱动装置
US7806051B2 (en) 2003-02-03 2010-10-05 Kba-Giori S.A. Drive of the inking unit in an intaglio printing machine

Also Published As

Publication number Publication date
JPS55140563A (en) 1980-11-04
DE2916291A1 (de) 1980-10-30
DD150726A1 (de) 1981-09-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): CH DE FR GB IT SE

17P Request for examination filed

Effective date: 19801213

STAA Information on the status of an ep patent application or granted ep patent

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18R Application refused

Effective date: 19820630

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KOEBLER, INGO