EP0965449A2 - Bac d'encrage à coins - Google Patents

Bac d'encrage à coins Download PDF

Info

Publication number: EP0965449A2
Authority: EP; European Patent Office
Prior art keywords: ink; ink fountain; wedge; insert; printing
Prior art date: 1998-06-16
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.): Granted

Application number

EP99111469A

Other languages

German (de)

English (en)

Other versions

EP0965449A3 (fr

EP0965449B1 (fr

Inventor

Torsten Thieme

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.)

Koenig and Bauer AG

Original Assignee

Koenig and Bauer 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.)

1998-06-16

Filing date

1999-06-12

Publication date

1999-12-22

1999-06-12 Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG

1999-12-22 Publication of EP0965449A2 publication Critical patent/EP0965449A2/fr

2000-04-05 Publication of EP0965449A3 publication Critical patent/EP0965449A3/fr

2002-08-14 Application granted granted Critical

2002-08-14 Publication of EP0965449B1 publication Critical patent/EP0965449B1/fr

2019-06-12 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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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
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
- 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
- B41F31/08—Ducts, containers, supply or metering devices with ink ejecting means, e.g. pumps, nozzles

Definitions

the invention relates to a wedge ink fountain for printing machines.
the sheet-like ink supply of the individual printing towers is on sheetfed offset printing machines in a wedge color box that adjusts along the duct with adjustable zones Color dosing elements.
the dosing elements form an inlet gap to the duct through which the color task is regulated.
the ink fountain of the machine is used to prepare for printing filled with a color supply. As a rule, the required amount cannot be determined, so that usually a larger amount of paint is filled than required. While changing colors the washing of the inking rollers and possibly the ductor is largely automated the ink fountain is still cleaned manually. The printer is filling the remaining color from the ink fountain (EP 05 84 523 A1).
Box-shaped inserts for ink tanks are known for faster change of printing ink (DE 43 15 595).
the inserts are usually inserted or suspended in the ink fountain and held in place by their own weight.
the disadvantage is that ink can get under the bottom of the insert and infiltrate it during printing. The goal of reduced cleaning effort is thus questioned.
the application also runs the risk of being lifted by hydrodynamic forces.
Another shortcoming of these ink fountain inserts is the necessary game to the Duktor, which causes an undesired licking of the paint.
ink fountains with a reduced ink supply are also known.
DE 43 39 939 C2 describes a solution for creating such a minimally necessary color volume.
the ink is introduced under metered pressure via feed channels into the ink supply space of an element which extends along the ink fountain roller and delimits the storage space, the end face of the element being adjustable in a defined return gap distance from the inking roller.
a disadvantage of this solution is the large amount of fastening work that has to be carried out at higher pressures to ensure tightness and thus also makes an optional use more difficult.
the poorly accessible device does not offer any time advantages in the cleaning process.
a particular problem is the residual color in the supply lines.
the object of the invention is to provide an easy-to-clean ink fountain.
the drawing shows a wedge color box with insert.
a duct roller 1 is assigned a lower part 2 of a known wedge ink fountain, 2 ink metering elements 3 being arranged on the bottom part for setting a gap relative to the duct roller 1.
a paint box insert 4 is placed on the lower part 2 and a flat gasket 5 is arranged between the lower part 2 and the underside 7 of the paint box insert.
the underside 7 of the ink fountain insert 4 is detachably connected to the lower part 2 via at least one fastening screw 6.
a color distribution element 8 is firmly connected to the underside 7 of the ink fountain insert 4.
the ink distribution element 8 has an end face 9 that is operatively connected to the duct roller 1.
the end face 9 does not touch the duct roller 1, that is, there is a small gap and, according to a second variant (not shown), the end face 9 of the ink distributor element 8 touches , for example via a rotating element, the duct roller.
the front side 9 and the ink metering elements 3 enclose an ink supply space 10 in connection with the underside 7 of the ink fountain insert 4.
a connector 11 for the ink supply to the ink supply space 10 is arranged on the ink distribution element 8. This connection 11 can be connected to a paint cartridge or to a paint supply system via a metering and pressure switch unit.
Handles 12 are arranged on the ink fountain insert 4.
connection 11 of the ink distribution element 8 is separated from the ink supply system or from the ink cartridge, if it is not part of the ink fountain insert, the fastening screw is loosened and the ink fountain insert 4 is removed from the wedge ink fountain.
the removed unit can now be cleaned outside the printing press, and the ink supply space is also easily accessible.

Landscapes

Inking, Control Or Cleaning Of Printing Machines (AREA)

EP99111469A 1998-06-16 1999-06-12 Bac d'encrage à coins Expired - Lifetime EP0965449B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19826817		1998-06-16
DE19826817A DE19826817A1 (de)	1998-06-16	1998-06-16	Keilfarbkasten

Publications (3)

Publication Number	Publication Date
EP0965449A2 true EP0965449A2 (fr)	1999-12-22
EP0965449A3 EP0965449A3 (fr)	2000-04-05
EP0965449B1 EP0965449B1 (fr)	2002-08-14

Family

ID=7871059

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP99111469A Expired - Lifetime EP0965449B1 (fr)	1998-06-16	1999-06-12	Bac d'encrage à coins

Country Status (2)

Country	Link
EP (1)	EP0965449B1 (fr)
DE (2)	DE19826817A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE20204841U1 (de)	2002-03-26	2002-09-05	Gramsch, Mathias, 26209 Hatten	Farbkasten für eine Druckmaschine und Druckmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3199451A (en) *	1963-08-02	1965-08-10	Koppers Co Inc	Ink distribution device
GB1585452A (en) *	1977-04-18	1981-03-04	Harris Corp	Inking mechanism
DE2929891A1 (de) *	1979-07-24	1981-02-12	Roland Man Druckmasch	Farbkasten fuer eine rotationsdruckmaschine
SE420064B (sv) *	1980-03-11	1981-09-14	Wifag Maschf	Insatsferglada
DE4339939C2 (de) *	1993-11-24	1995-10-12	Robert Wagner	Vorrichtung zur Zufuhr von Druckfarbe in ein Farbwerk einer Offsetdruckmaschine
DE19640775A1 (de) *	1996-10-02	1998-04-09	Roland Man Druckmasch	Einsatz für einen Keilfarbkasten von Druckmaschinen

1998
- 1998-06-16 DE DE19826817A patent/DE19826817A1/de not_active Withdrawn
1999
- 1999-06-12 DE DE59902319T patent/DE59902319D1/de not_active Expired - Fee Related
- 1999-06-12 EP EP99111469A patent/EP0965449B1/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0965449A3 (fr)	2000-04-05
DE19826817A1 (de)	1999-12-23
DE59902319D1 (de)	2002-09-19
EP0965449B1 (fr)	2002-08-14

Legal Events

Date	Code	Title	Description
1999-11-05	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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2000-02-18	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
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2000-12-13	AKX	Designation fees paid	Free format text: DE FR GB IT
2001-01-10	17Q	First examination report despatched	Effective date: 20001127
2002-01-09	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
2002-01-29	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
2002-01-29	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
2002-03-01	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
2002-06-28	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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2002-12-24	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 20021129
2003-03-07	ET	Fr: translation filed
2003-06-20	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
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2011-02-23	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20100612
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Publication	Publication Date	Title
DE3146223C2 (de)	1985-03-21	Feucht-Farbwerk für Offsetdruckmaschinen
EP0141168B1 (fr)	1991-04-17	Réglage initial pour dispositifs d'encrage
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