EP1567342A1 - Farbkammerrakel - Google Patents
FarbkammerrakelInfo
- Publication number
- EP1567342A1 EP1567342A1 EP03775395A EP03775395A EP1567342A1 EP 1567342 A1 EP1567342 A1 EP 1567342A1 EP 03775395 A EP03775395 A EP 03775395A EP 03775395 A EP03775395 A EP 03775395A EP 1567342 A1 EP1567342 A1 EP 1567342A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- doctor blade
- clamping plate
- doctor
- ink chamber
- rod
- 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.)
- Granted
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)
- Pens And Brushes (AREA)
- Coating Apparatus (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Liquid Crystal Substances (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10255411 | 2002-11-28 | ||
DE10255411A DE10255411A1 (de) | 2002-11-28 | 2002-11-28 | Farbkammerrakel |
PCT/EP2003/013347 WO2004048097A1 (de) | 2002-11-28 | 2003-11-26 | Farbkammerrakel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1567342A1 true EP1567342A1 (de) | 2005-08-31 |
EP1567342B1 EP1567342B1 (de) | 2008-07-09 |
Family
ID=32335801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03775395A Expired - Lifetime EP1567342B1 (de) | 2002-11-28 | 2003-11-26 | Farbkammerrakel |
Country Status (6)
Country | Link |
---|---|
US (1) | US7287471B2 (de) |
EP (1) | EP1567342B1 (de) |
AT (1) | ATE400435T1 (de) |
AU (1) | AU2003283430A1 (de) |
DE (2) | DE10255411A1 (de) |
WO (1) | WO2004048097A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007027383A1 (de) | 2007-06-11 | 2008-12-24 | Windmöller & Hölscher Kg | Farbkammerrakel in einem Farbwerk einer Rotationsdruckmaschine |
DE102007027384A1 (de) | 2007-06-11 | 2009-03-12 | Windmöller & Hölscher Kg | Farbkammerrakel in einem Farbwerk einer Rotationsdruckmaschine sowie Verfahren zur Herstellung einer Farbkammerrakel |
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)
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 |
AU762106B2 (en) * | 1999-06-22 | 2003-06-19 | Tresu Production A/S | Doctor blade system |
EP1293342A1 (de) * | 2001-09-14 | 2003-03-19 | Windmöller & Hölscher KG | Farbkammer für Rotationsdruckmaschinen mit stirnseitiger Abdichtung |
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 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 AU AU2003283430A patent/AU2003283430A1/en not_active Abandoned
- 2003-11-26 EP EP03775395A patent/EP1567342B1/de not_active Expired - Lifetime
- 2003-11-26 DE DE50310126T patent/DE50310126D1/de not_active Expired - Lifetime
- 2003-11-26 WO PCT/EP2003/013347 patent/WO2004048097A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2004048097A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20060027112A1 (en) | 2006-02-09 |
DE10255411A1 (de) | 2004-06-24 |
WO2004048097A1 (de) | 2004-06-10 |
AU2003283430A1 (en) | 2004-06-18 |
DE50310126D1 (de) | 2008-08-21 |
ATE400435T1 (de) | 2008-07-15 |
US7287471B2 (en) | 2007-10-30 |
EP1567342B1 (de) | 2008-07-09 |
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