EP1567342A1 - Racle a reservoir d'encre - Google Patents

Racle a reservoir d'encre

Info

Publication number: EP1567342A1
Authority: EP; European Patent Office
Prior art keywords: doctor blade; clamping plate; doctor; ink chamber; rod
Prior art date: 2002-11-28
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

EP03775395A

Other languages

German (de)

English (en)

Other versions

EP1567342B1 (fr

Inventor

Klaus Gräler

Günter Rogge

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.)

Windmoeller and Hoelscher KG

Original Assignee

Windmoeller and Hoelscher KG

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.)

2002-11-28

Filing date

2003-11-26

Publication date

2005-08-31

2003-11-26 Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG

2005-08-31 Publication of EP1567342A1 publication Critical patent/EP1567342A1/fr

2008-07-09 Application granted granted Critical

2008-07-09 Publication of EP1567342B1 publication Critical patent/EP1567342B1/fr

2023-11-26 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- B41F31/027—Ink rail devices for inking ink rollers

Definitions

the invention relates to an ink chamber doctor blade according to the preamble of
Ink chamber doctor blades have been known for a long time.
the doctor blades of ink chamber doctor blades are subject to constant wear and must therefore be changed regularly.
the doctor blades are usually pressed against the doctor chamber body by a clamping plate to fix them.
the clamping plate was fastened to the squeegee chamber body with screws for this purpose, as can be seen in DE 42 41 792 A1.
the clamping plate in turn presses the doctor blade against the doctor chamber body and fixes it in the process.
a large number of screws have to be changed when changing the doctor blade.
the clamping plate is in operative connection with fastening means elongated in the axial direction (z) of the roller, - which are arranged essentially parallel to the clamping plate and from which the force required to fix the at least one doctor blade is applied,
the clamping plates are flexible plates which are held on the squeegee chamber body by screws or similar fixing means, but are not finally fixed.
the clamping takes place in that the fastening means, which are elongated in the axial direction (z) of the roller, exert a force on the clamping plate which points away from the doctor blade chamber body.
the clamping plate is held by the screws on the doctor chamber body, so that the clamping plate bends and exerts a force on the doctor blade on the side of the screw facing the roller, which force is directed onto the doctor chamber body and fixes the doctor knife on the doctor chamber body.
the fastening means which are elongated in the axial direction (z) of the roller, are rods with a partially round cross section, which are rotatably mounted in the doctor chamber body. Such rods are then provided with a recess or a projection, which means that when the rod rotates, a force is exerted, the resultant of which points away from the doctor chamber.
an inflatable tube or another body at this point, which can increase its volume and in this way exerts a force on the clamping plate, the resultant of which points away from the doctor chamber body.
Fig. 1 shows a section through a doctor blade chamber of the prior art in Operating state
Fig. 2 A section through a doctor blade chamber of the prior art, which is turned off the roller.
Fig. 3 top view of a clamping plate of the prior art
Fig. 4 shows a section through a doctor blade chamber according to the invention
FIG. 5 A section through a doctor blade chamber according to the invention, which is turned off the roller. 6 shows an enlarged representation of the cross section of the rod 4
FIG. 1 shows an ink chamber doctor blade 1 of the prior art.
the ink chamber 8 is limited by the roller 6 of the doctor blade chamber body 5 to be inked, which can of course also consist of several parts 5, and the doctor blades 2.
the two doctor blades 2 of the ink chamber doctor blade 1 are each fixed by a clamping plate 3, which presses the doctor blade assigned to it 3 against the doctor blade chamber body 5.
the force required for this is the restoring force of the clamping plate, which arises because the clamping plate is bent between the elongated fastening element 4, which in the present case is formed as a rod, and the head of the screw 7 and the doctor chamber body 5.
the resultant of the force that the rod 4 exerts on the clamping plate points away from the doctor chamber.
This force comes about because the rod 4 is provided with a recess 16 which, when the clamping plate 3 is inserted, is flush with the surface of the doctor chamber body 5, as shown in FIG.
the rotation of the rod 4 then brings the circular part of the circumferential surface of the largely circular-cylindrical rod 4 into contact with the gill plate 3, the contacted part of the clamping plate is pressed outward and the restoring force of the plate 3 already described fixes the doctor blade.
Figure 3 shows a clamping plate which is suitable for use in the doctor blade chamber shown in Figures 1 and 2.
the round bores 10 and the grooves 11 form the openings 9.
the diameter of the bores 10 is matched to the head of the screw 7 with the necessary play, while the width of the groove 11 is matched to the diameter of the screw neck.
FIGS. 4 and 5 show a chambered doctor blade according to the invention, in which the clamping plates 3 are provided with an attachment piece 13, which comprises a connecting element 14.
the connecting element is matched to the recess 15 of the rod 4.
the shape of the recess 15 is shown again in FIG. 6.
the connecting element When the rod 4 rotates in the closing direction, which is represented by the arrow 20, the connecting element first slides along the flat surface 18 of the recess 15, in order then to be carried along by the shoulder 17 of the recess. In this way, the unit consisting of the top piece 13 and the clamping plate 3 is brought into the position suitable for fixing the doctor blade 2.
FIG. 6 shows a plan view of the clamping plate 3 which is used in the chamber doctor blade according to the invention shown in FIGS. 4 and 5.

Landscapes

Inking, Control Or Cleaning Of Printing Machines (AREA)
Rotary Presses (AREA)
Coating Apparatus (AREA)
Liquid Crystal Substances (AREA)
Crystals, And After-Treatments Of Crystals (AREA)
Pens And Brushes (AREA)

EP03775395A 2002-11-28 2003-11-26 Racle a reservoir d'encre Expired - Lifetime EP1567342B1 (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE10255411A DE10255411A1 (de)	2002-11-28	2002-11-28	Farbkammerrakel
DE10255411		2002-11-28
PCT/EP2003/013347 WO2004048097A1 (fr)	2002-11-28	2003-11-26	Racle a reservoir d'encre

Publications (2)

Publication Number	Publication Date
EP1567342A1 true EP1567342A1 (fr)	2005-08-31
EP1567342B1 EP1567342B1 (fr)	2008-07-09

Family

ID=32335801

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP03775395A Expired - Lifetime EP1567342B1 (fr)	2002-11-28	2003-11-26	Racle a reservoir d'encre

Country Status (6)

Country	Link
US (1)	US7287471B2 (fr)
EP (1)	EP1567342B1 (fr)
AT (1)	ATE400435T1 (fr)
AU (1)	AU2003283430A1 (fr)
DE (2)	DE10255411A1 (fr)
WO (1)	WO2004048097A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102007027384A1 (de)	2007-06-11	2009-03-12	Windmöller & Hölscher Kg	Farbkammerrakel in einem Farbwerk einer Rotationsdruckmaschine sowie Verfahren zur Herstellung einer Farbkammerrakel
DE102007027383A1 (de)	2007-06-11	2008-12-24	Windmöller & Hölscher Kg	Farbkammerrakel in einem Farbwerk einer Rotationsdruckmaschine
FR3080568B1 (fr) *	2018-04-30	2020-04-03	Bobst Lyon	Dispositif de fixation d'une racle sur un corps de chambre a racles

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4138807C1 (en)	1991-11-26	1993-06-03	Cornelis Wapenveld Nl Gorter	Colour chamber doctor - is for colour-transfer, screened circular cylindrical body such as screen roller or engraved cylinder
JP2596881Y2 (ja)	1992-06-23	1999-06-21	旭光学工業株式会社	レンズ鏡筒のフレキシブル基板の装着構造
DE4320833C1 (de)	1993-06-23	1994-09-22	Roland Man Druckmasch	Verfahren und Vorrichtung zum Austausch eines Rakelblattes einer Kammerrakel für Rotationsdruckmaschinen
US5517918A (en) *	1994-07-29	1996-05-21	Fischer & Krecke Gmbh & Co.	Doctor blade clamping assembly for a printing press
DE19516224C2 (de) *	1995-05-03	1997-03-20	Windmoeller & Hoelscher	Rakelvorrichtung für ein Spülfarbwerk einer Rotationsdruckmaschine
US6202252B1 (en) *	1999-06-03	2001-03-20	Valmet Ltd.	Doctoring apparatus
DK1196287T3 (da) *	1999-06-22	2003-06-10	Tresu Production As	Rakelsystem
EP1293342A1 (fr) *	2001-09-14	2003-03-19	Windmöller & Hölscher KG	Joint d'étanchéité pour un encreur à racles d'une machine à imprimer rotative
ITVR20020088A1 (it) *	2002-09-09	2004-03-10	Uteco Holding S P A	Macchina flessografica.

2002
- 2002-11-28 DE DE10255411A patent/DE10255411A1/de not_active Ceased
2003
- 2003-11-26 AU AU2003283430A patent/AU2003283430A1/en not_active Abandoned
- 2003-11-26 AT AT03775395T patent/ATE400435T1/de not_active IP Right Cessation
- 2003-11-26 US US10/529,554 patent/US7287471B2/en not_active Expired - Fee Related
- 2003-11-26 WO PCT/EP2003/013347 patent/WO2004048097A1/fr not_active Ceased
- 2003-11-26 EP EP03775395A patent/EP1567342B1/fr not_active Expired - Lifetime
- 2003-11-26 DE DE50310126T patent/DE50310126D1/de not_active Expired - Lifetime

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004048097A1 *

Also Published As

Publication number	Publication date
AU2003283430A1 (en)	2004-06-18
ATE400435T1 (de)	2008-07-15
DE50310126D1 (de)	2008-08-21
US7287471B2 (en)	2007-10-30
EP1567342B1 (fr)	2008-07-09
WO2004048097A1 (fr)	2004-06-10
DE10255411A1 (de)	2004-06-24
US20060027112A1 (en)	2006-02-09

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Publication	Publication Date	Title
EP1278636B1 (fr)	2005-09-14	Dispositif pour fixer une plaque souple
DE69405824T2 (de)	1998-02-19	Farbwerk für Druckmaschinen
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DE4213660C2 (de)	1995-06-08	Kurzfarbwerk für eine Rollenrotationsdruckmaschine
DE4218211C2 (de)	1996-08-14	Waschvorrichtung für einen Gummituchzylinder einer Druckmaschine
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DE19541249B4 (de)	2006-03-23	Gummizylinder mit einer Gummitucheinheit und mit einer Vorrichtung zum Befestigen der Gummitucheinheit
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EP0573801B1 (fr)	1996-10-16	Dispositif de lavage pour un cylindre blanchet d'une presse à imprimer
DD261765A1 (de)	1988-11-09	Vorrichtung zum befestigen einer biegsamen druckplatte
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