EP0182325A2 - Dispositif d'encrage - Google Patents

Dispositif d'encrage Download PDF

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Publication number
EP0182325A2
EP0182325A2 EP85114590A EP85114590A EP0182325A2 EP 0182325 A2 EP0182325 A2 EP 0182325A2 EP 85114590 A EP85114590 A EP 85114590A EP 85114590 A EP85114590 A EP 85114590A EP 0182325 A2 EP0182325 A2 EP 0182325A2
Authority
EP
European Patent Office
Prior art keywords
ink
inking unit
roller
guide plate
anilox roller
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Withdrawn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
EP85114590A
Other languages
German (de)
English (en)
Other versions
EP0182325A3 (fr
Inventor
Joachim Dorow
Klaus Engel
Pirmin Göbel
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.)
Albert Frankenthal AG
Original Assignee
Albert Frankenthal 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 Albert Frankenthal AG filed Critical Albert Frankenthal AG
Publication of EP0182325A2 publication Critical patent/EP0182325A2/fr
Publication of EP0182325A3 publication Critical patent/EP0182325A3/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Withdrawn legal-status Critical Current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
    • B41F31/20—Ink-removing or collecting devices

Definitions

  • the invention relates to an inking unit, in particular short inking unit for printing presses, in particular offset printing presses, with an anilox roller which can be doctored off by means of a doctor blade arranged above an ink pan, preferably with its edge pointing downwards, negatively against the anilox roller.
  • a short inking unit of this type is known from DE-AS 31 17 341.
  • This well-known short inking unit has already proven itself on the whole in practice.
  • it is found to be disadvantageous that the ink doctored by the anilox roller underneath the doctoring point onto the circumferential surface of one with the screen drops on the cooperating immersion roller or drips back into the ink pan near the immersion roller.
  • This can therefore lead to water or dirt accumulation in the area of the ink tray directly adjacent to the dip roller or on the dip roller.
  • water, ink and / or dirt can get into the ink tank via the inking unit rollers as a result of the cleavage.
  • local water or dirt accumulations in the ink tank can lead to an unfavorable influence on the print quality.
  • this object is achieved in that a guide plate, which underlays the doctoring point and extends at least over the entire length of the doctor blade, is arranged below the doctor blade, has a slope directed away from the anilox roller and removes its trailing edge from the ink tray in the area of the ink removal Area.
  • the length of the guide plate can be dimensioned when using an oscillating doctor blade in such a way that it corresponds at least to the distance between the end positions of the opposing doctor blade side edges. This ensures that no ink can get from the edge areas of the doctor blade bypassing the guide plate into the ink fountain.
  • a further expedient embodiment of the superordinate measures can consist in that the running edge of the guide plate, which runs preferably over the entire length, lies approximately in the area of the ink supply to the ink tray. This measure favors a particularly intensive mixing of the paint dripping back evenly over the entire length into the paint pan with the paint present in it or flowing into it.
  • the connecting plane containing the central axes of the dipping roller and anilox roller and the plane of the guide plate are inclined towards one another in an approximately roof-shaped manner.
  • the dipping roller can be provided in the front area, the drain edge in the rear area of the ink tray.
  • the single figure of the drawing shows a side view of a short inking unit according to the invention in a schematic representation.
  • the short inking unit shown in the drawing consists of an immersion roller 2 immersed in an ink pan 1, an applicator roller 4 inking the printing plate mounted on a plate cylinder 3, not shown here, the diameter of which corresponds to the working diameter of the printing plate mounted on the plate cylinder 3, and one Ink from the immersion roller 2 to the anilox roller 4, which transfers the anilox roller 5.
  • the anilox roller 5 is provided with a circumferential engraving, which consists of ink-receiving depressions 6 and webs 7 that delimit them.
  • the gra fourth anilox roller is designed as a steel roller.
  • the cooperating plunger roller 2 and applicator roller 4 are designed as rubber rollers.
  • the ink applied here in the opposite direction from the dipping roller 2 to the anilox roller 5 is scraped off the periphery of the anilox roller 5 by means of a squeegee 8 resting on the periphery of the anilox roller 5 with its front edge pointing downward with a negative angle of attack.
  • the negatively positioned squeegee 8 is received with its upward-facing edge region in a squeegee holder 9, which is used to bring the downward-facing edge of the squeegee 8 to the anilox roller 5 or to adjust the desired one to the downward position pointing pressure force acting on the anilox roller 5 can be pivoted by means of a pivot device not shown here.
  • the anilox roller 5 therefore transfers an amount of ink precisely metered by the receiving volume of the ink receiving recesses 6 to the applicator roller 4.
  • the applicator roller 4 is also acted on with dampening solution in addition to the application of color.
  • a dampening unit 10 which interacts with the applicator roller 4 and is arranged upstream of the anilox roller 5 is provided. Because of the cleavage, dampening solution can also get onto the anilox roller 5 or into the ink tray 1.
  • dirt particles such as paper dust or the like, which are transferred from the printing material to the plate cylinder or, in the case of an offset printing unit, to the rubber cylinder interacting with it.
  • an intensive mixing of the work scraped off by the anilox roller 5 in the ink tray existing fresh ink is required.
  • the point at which the doctor blade 8 rests on the anilox roller 5 is underpinned by a guide plate 11, which guides the ink scraped off by the doctor blade 8 from the anilox roller 5 into an area of the ink tank 1 that is as far as possible from the dip roller 2 and parallel to the dip roller 1 .
  • the baffle 11 is inclined so that there is a slope away from the anilox roller 5 or the submersible roller 2.
  • the path edge 12 of the guide plate 11, which points away from the anilox roller 5 and extends over the entire length of the guide plate, is located in the rear area of the ink tray 1 that is accessible for ink replenishment.
  • the immersion roller 2 is located in the opposite, front area of the ink tray 1.
  • the over the entire length of the ink tray 1, the area of the introduction of the ink doctored by the anilox roller 5 into the ink tray 1 and the area of the removal of ink from the ink tray 1 are accordingly at the greatest possible distance.
  • the over the entire length of the baffle plate extending, parallel to the plunge edge 12 of the baffle plate 11 returning paint in the ink pan 1 must therefore practically migrate through the entire ink pan over the entire pan width to get to the dip roller 2.
  • the ink pan 1 is refilled by means of a pipeline 13, the outlet connector 14 of which is located above the rear wall of the ink pan 1, which is inclined towards the rear.
  • the anilox roller 5 is located here approximately above the central region of the ink tray 1.
  • the connecting plane containing the axes of the immersion roller 2 and the anilox roller 5 and the plane of the guide plate 11 can be inclined approximately roof-shaped with respect to one another, which results in a very space-saving overall arrangement.
  • the length of the guide plate 11 is selected so that the paint stripped off over the entire length of the dip roller 5 is collected.
  • the length of the guide plate 11 therefore corresponds at least to the length of the squeegee 8. It is expedient if the guide plate 11 protrudes laterally beyond the squeegee 8, so that the ink dripping in the area of the side edges of the squeegee 8 is reliably collected.
  • the doctor blade 8 is intended to execute a reciprocating oscillating movement in order to avoid so-called doctor blade strips.
  • the length of the guide plate 11 corresponds at least to the length of the squeegee 8 plus the squeegee stroke and possibly a slight lateral protrusion beyond the lateral end positions of the squeegee side edges.
  • the rear edge 15 of the baffle 11 and the side edge 16 can be bent upwards so that no ink can drip into the ink tray 1 via these edges and all of the paint doctored off by the anilox roller 5 reaches the rear area of the ink tray 1 via the trailing edge 12.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP85114590A 1984-11-23 1985-11-16 Dispositif d'encrage Withdrawn EP0182325A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843442661 DE3442661A1 (de) 1984-11-23 1984-11-23 Farbwerk
DE3442661 1984-11-23

Publications (2)

Publication Number Publication Date
EP0182325A2 true EP0182325A2 (fr) 1986-05-28
EP0182325A3 EP0182325A3 (fr) 1987-10-28

Family

ID=6250918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114590A Withdrawn EP0182325A3 (fr) 1984-11-23 1985-11-16 Dispositif d'encrage

Country Status (2)

Country Link
EP (1) EP0182325A3 (fr)
DE (1) DE3442661A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126722A1 (de) * 1991-08-13 1993-02-18 Koenig & Bauer Ag Farbbehaelter fuer eine farbzufuehrung fuer ein kurzfarbwerk bei offsetrotationsdruckmaschinen
EP0557635A1 (fr) * 1992-02-20 1993-09-01 Manabu Fukuda Agencement pour l'encrage
WO2005077656A1 (fr) * 2004-01-15 2005-08-25 Kba-Giori S.A. Systeme d'encrage pour 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
DE4401425C2 (de) * 1994-01-19 1996-04-11 Roland Man Druckmasch Druckwerk einer Offset-Rotationsdruckmaschine
DE29617829U1 (de) * 1996-10-14 1997-01-23 Voith Sulzer Papiermasch Gmbh Auftragseinrichtung zum Auftragen eines Streichmediums
DE102006061393A1 (de) * 2006-12-23 2008-06-26 Koenig & Bauer Aktiengesellschaft Kurzfarbwerk für eine Druckmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2303132A1 (de) * 1973-01-23 1974-07-25 Maschf Augsburg Nuernberg Ag Farbwerk fuer ratations-offsetdruckmaschinen
EP0064270A1 (fr) * 1981-05-02 1982-11-10 Albert-Frankenthal AG Dispositif d'encrage
EP0071108B1 (fr) * 1981-07-31 1987-06-03 Dahlgren Manufacturing Company Procédé et dispositif pour appliquer de l'encre et de l'eau à une plaque d'impression

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1401718A (fr) * 1964-07-03 1965-06-04 Zeuthen & Aagaard As Dispositif d'encrage, en particulier pour machines d'impression offset
CH583097A5 (fr) * 1975-05-05 1976-12-31 Wifag Maschf
DE3046257C2 (de) * 1980-12-08 1984-02-16 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Lackiereinrichtung an Druckmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2303132A1 (de) * 1973-01-23 1974-07-25 Maschf Augsburg Nuernberg Ag Farbwerk fuer ratations-offsetdruckmaschinen
EP0064270A1 (fr) * 1981-05-02 1982-11-10 Albert-Frankenthal AG Dispositif d'encrage
EP0071108B1 (fr) * 1981-07-31 1987-06-03 Dahlgren Manufacturing Company Procédé et dispositif pour appliquer de l'encre et de l'eau à une plaque d'impression

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126722A1 (de) * 1991-08-13 1993-02-18 Koenig & Bauer Ag Farbbehaelter fuer eine farbzufuehrung fuer ein kurzfarbwerk bei offsetrotationsdruckmaschinen
US5303649A (en) * 1991-08-13 1994-04-19 Koenig & Bauer Aktiengesellschaft Ink container
EP0557635A1 (fr) * 1992-02-20 1993-09-01 Manabu Fukuda Agencement pour l'encrage
US5293819A (en) * 1992-02-20 1994-03-15 Manabu Fukuda Inking arrangement
WO2005077656A1 (fr) * 2004-01-15 2005-08-25 Kba-Giori S.A. Systeme d'encrage pour machine d'impression en creux
EP1717025A2 (fr) * 2004-01-15 2006-11-02 Kba-Giori S.A. Système d'encrage pour une machine d'impression en creux
CN100457453C (zh) * 2004-01-15 2009-02-04 卡巴-乔利有限公司 用于凹版印刷机的输墨系统
CN101357526B (zh) * 2004-01-15 2010-12-08 卡巴-乔利有限公司 凹版印刷机
CN101318397B (zh) * 2004-01-15 2011-02-02 卡巴-乔利有限公司 凹版印刷机及用于凹版印刷机的输墨系统
RU2490137C2 (ru) * 2004-01-15 2013-08-20 КБА-НотаСис СА Система нанесения краски для печатной машины глубокой печати
RU2490136C2 (ru) * 2004-01-15 2013-08-20 КБА-НотаСис СА Система нанесения краски для печатной машины глубокой печати
EP1717025A3 (fr) * 2004-01-15 2014-05-14 KBA-NotaSys SA Système d'encrage pour une machine d'impression en creux

Also Published As

Publication number Publication date
EP0182325A3 (fr) 1987-10-28
DE3442661A1 (de) 1986-06-05

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Inventor name: DOROW, JOACHIM

Inventor name: GOEBEL, PIRMIN