EP0865917A2 - Chambre de racle - Google Patents

Chambre de racle Download PDF

Info

Publication number
EP0865917A2
EP0865917A2 EP98107632A EP98107632A EP0865917A2 EP 0865917 A2 EP0865917 A2 EP 0865917A2 EP 98107632 A EP98107632 A EP 98107632A EP 98107632 A EP98107632 A EP 98107632A EP 0865917 A2 EP0865917 A2 EP 0865917A2
Authority
EP
European Patent Office
Prior art keywords
anilox roller
doctor blade
side jaws
chamber
face
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Withdrawn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
EP98107632A
Other languages
German (de)
English (en)
Other versions
EP0865917A3 (fr
Inventor
Norbert Georg Weisbrod
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 Albert 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 Koenig and Bauer Albert AG filed Critical Koenig and Bauer Albert AG
Publication of EP0865917A2 publication Critical patent/EP0865917A2/fr
Publication of EP0865917A3 publication Critical patent/EP0865917A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
    • B05C11/047—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades provided with end dams
    • 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 a doctor blade with one Anilox roller provided inking unit Rotary printing machine according to the preamble of Claim 1.
  • a chambered doctor blade is known from EP 04 38 731 A2.
  • a ink chamber of the chamber doctor blade is made on the front by Sealed side jaws. These side jaws are each with one that can be adjusted to an anilox roller Sealant provided that a curvature Shell surface of the anilox roller is adapted.
  • This Sealants are made of elastic material and their contact surface to the outer surface of the anilox roller coated with a low-friction material.
  • the disadvantage here is that coating measures are necessary to create a low-friction contact surface Obtain sealant for anilox roller.
  • the US 51 50 651 A shows a generic Chamber doctor blade, whose ink chamber by means of side jaws is sealed. These side jaws are with as Provide lubrication pocket-like depressions.
  • the invention has for its object a Chamber doctor blade one with an anilox roller To create inking unit of a rotary printing press.
  • Friction is advantageously minimized by the chambered doctor blade according to the invention, as a result of which only little heat is generated. This minimizes wear on side jaws as well as on the outer surface of an anilox roller, which results in a longer service life and machine downtime tents are avoided.
  • the low heat development prevents gas bubbles from forming in the area of the side jaws, which leads to improved ink guidance of the anilox roller and thus increases the print quality.
  • no elaborate sliding linings are necessary. Due to the automatically generated minimal gap, only a minimal amount of ink emerges from the chamber doctor blade, which largely prevents the formation of beads and thus splashing of the anilox roller.
  • the chambered doctor blade according to the invention is in the drawing shown and is described in more detail below.
  • a chambered doctor blade 1 interacts with an anilox roller 2 of a short inking unit.
  • the chambered doctor blade 1 extends axially parallel to the anilox roller 2.
  • a plurality of chambered doctor blades 1, for example two chambered doctor blades 1 each extending over half the length of the anilox roller length, can be provided over a length of the anilox roller 2. However, it can also be provided, for example, printing plate-wide chamber doctor blade 1 in order to use a plurality of colors on the anilox roller 2 or to switch off the ink supply zone by zone.
  • the chambered doctor blade 1 consists essentially of a base body 3, a working doctor blade 4, a closing doctor blade 6 and a right or left side jaw 7, 8.
  • the base body 3 is provided with a depression 11 and its ends 11, 12 near the rollers point with respect to a radial direction the anilox roller 2 inclined mounting surfaces 13, 14.
  • the working doctor blade 4 or the closing doctor blade 6 are clamped between these fastening surfaces 13, 14 and fastening strips 16, 17, for example by means of screws.
  • the base body 3 can, as in the example shown, in one piece or else in several parts, for. B. divided in two in the axial direction.
  • the side jaws 7, 8 are arranged on axially delimiting end faces 18, 19 of the base body 3, each of which has a curvature of the anilox roller 2 on its sealing surface 21 facing the anilox roller 2.
  • the side jaws 7, 8, working, closing doctor blade 4, 6 and the depression 9 of the base body 3 thus delimit an ink chamber 22 of the chamber doctor blade 1.
  • an inner end face 23, 24 of the respective side jaw 7, 8 is provided with an opening 26 pointing in the direction of the ink chamber 22, and the sealing surface 21 of the side jaws 7, 8 has a recess 27 which acts as a lubrication and sealing pocket.
  • the opening 26 and the recess 27 are connected to one another.
  • an incision 28, 29 is provided through the sealing surface 21, which also serves as a depression 27 and opening 26. This incision 28, 29 is U-shaped, with a width b28, z.
  • the incision 28, 29 with the ink chamber 22 facing end face 23, 24 of the side jaws 7, 8 has a rotational angle alpha, z. B. 45 ° include.
  • the recess 27 is designed as a conical bore 31 which is centered with respect to the width of the sealing surface 21 and whose maximum diameter d31, z. B. is smaller than the width b7 of the side jaws 7, 8.
  • the opening 26 designed as a bore 32 opens in the region of the cone tip of the bore 31 and thus connects the bore 31 to the ink chamber 22.
  • z. B. cuboidal depressions or wedge-shaped tapered surfaces in the direction of rotation, which may be limited to the inner and outer end faces 23, 24, 33, 34 of the side jaws 7, 8 or open.
  • several of these depressions 27 and openings 26 can also be provided along the sealing surface 21.
  • the side jaws 7, 8 are on their outer, end surfaces 33, 34 facing away from the ink chamber 22 Wipers 36, 37 provided over the outer End face 33, 34 of the side jaws 7, 8 in a wedge shape
  • Direction of rotation of the anilox roller 2 also act. in the This example runs at the incoming end of the respective side jaws 7, 8 an incision 38 of the Depth t38 and width b38 below and approximately parallel to the sealing surface 21.
  • the scraper 36, 37 by bending a part the side jaws 7, 8 to the outside, d. H.
  • the operation of the chamber doctor blade 1 is as follows: The chamber doctor blade 1 is pressed against the anilox roller 2 by a holding device, not shown, so that the sealing surfaces 21 of the side jaws 7, 8 and prestressed working or closing doctor blade 4, 6 abut against a lateral surface 42 of the anilox roller 2 .
  • the ink chamber 22 thus formed is supplied or discharged with paint via openings (not shown).
  • the ink in the ink chamber 22 flows through the opening 26 of the end face 23, 24 of the side jaws 7, 8 into the recess 27 of the sealing surface 21.
  • the rotation of the anilox roller 2 causes the ink outside the recess 27 to form in a gap between the sealing surface 21 and anilox roller 2 transported.
  • the recess 27 thus forms a lubrication pocket of a hydrodynamic, or if the ink chamber 22 is operated with excess pressure, a hydrostatic plain bearing, the ink serving as a lubricant. If paint outside the outer end face 33, 34 of the side jaws 7, 8 emerges from the gap between the anilox roller 2 and the sealing surface 21, it collects as a bead on the anilox roller 2 and becomes the inner end faces 23, 24 of the stripper 37, 37 Side jaws 7, 8 transported. This leaked paint is conveyed along these end faces 23, 24 to a paint funnel or return tank, not shown.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
EP98107632A 1994-12-29 1995-12-20 Chambre de racle Withdrawn EP0865917A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4447123 1994-12-29
DE4447123A DE4447123C1 (de) 1994-12-29 1994-12-29 Kammerrakel für eine Rotationsdruckmaschine
EP95120199A EP0722833B1 (fr) 1994-12-29 1995-12-20 Encreur sous forme de rail

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP95120199A Division EP0722833B1 (fr) 1994-12-29 1995-12-20 Encreur sous forme de rail

Publications (2)

Publication Number Publication Date
EP0865917A2 true EP0865917A2 (fr) 1998-09-23
EP0865917A3 EP0865917A3 (fr) 1998-12-02

Family

ID=6537440

Family Applications (2)

Application Number Title Priority Date Filing Date
EP95120199A Expired - Lifetime EP0722833B1 (fr) 1994-12-29 1995-12-20 Encreur sous forme de rail
EP98107632A Withdrawn EP0865917A3 (fr) 1994-12-29 1995-12-20 Chambre de racle

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP95120199A Expired - Lifetime EP0722833B1 (fr) 1994-12-29 1995-12-20 Encreur sous forme de rail

Country Status (4)

Country Link
US (1) US5628250A (fr)
EP (2) EP0722833B1 (fr)
JP (1) JP2886124B2 (fr)
DE (2) DE4447123C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19957464A1 (de) * 1999-11-29 2001-05-31 Heidelberger Druckmasch Ag Einrichtung zur Abdichtung einer Farbversorgung an Druckmaschinen
US6598525B2 (en) 1999-11-29 2003-07-29 Heidelberger Druckmaschinen Ag Device for sealing off an ink supply on printing machines

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5983797A (en) * 1997-11-17 1999-11-16 Howard W. DeMoore End seal engaging bearer of anilox roller assembly
GB2339722B (en) * 1998-07-17 2003-02-19 Armstrong World Ind Ltd Improvements in and relating to printing machines
US6433890B1 (en) 1998-09-24 2002-08-13 Mdc Max Daetwyler Ag System and method for improving printing of a leading edge of an image in a gravure printing process
DE10136028C5 (de) * 2001-07-25 2016-03-17 manroland sheetfed GmbH Verfahren und Vorrichtung zum Dosieren eines flüssigen Mediums in einer Verarbeitungsmaschine
FI20065573A0 (fi) * 2006-09-20 2006-09-20 Ike Service Oy Terä ja menetelmä terän valmistamiseksi
CN102886978A (zh) * 2012-09-18 2013-01-23 苏州市三峰印刷机械有限公司 用于轮转印刷机的油墨供应装置
JP2016511178A (ja) 2013-03-13 2016-04-14 プロビティ エンジニアリング エルエルシーＰｒｏｂｉｔｙ Ｅｎｇｉｎｅｅｒｉｎｇ，Ｌｌｃ フレキソ印刷用のインキ壺装置
ES2721054T3 (es) * 2016-01-14 2019-07-26 Windmoeller & Hoelscher Elemento de sellado para el sellado frontal de una cámara de rasqueta
CN105665221A (zh) * 2016-04-15 2016-06-15 江苏坤泰机械有限公司 逆向精密上胶装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE145993C (fr) *
CH413872A (de) * 1962-11-13 1966-05-31 Winkler Fallert & Co Maschf Vorrichtung zum Verhindern des Zusammenfliessens zweier Farben unter dem Farbmesser von Hochdruck-, Offsetdruck- und ähnlichen Maschinen mit Abteilkeilen
US5150651A (en) * 1991-06-10 1992-09-29 Flores Carlos R Doctor-blade assembly for flexographic press

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD108492A1 (fr) * 1973-11-22 1974-09-20
DE3241124A1 (de) * 1982-11-06 1984-05-10 Koenig & Bauer AG, 8700 Würzburg Farbabteilkeil in einem farbkasten einer rotationsdruckmaschine
DE3408183C1 (de) * 1984-03-06 1985-03-28 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Farbkasten fuer Druckmaschinen
US4796528A (en) * 1987-05-29 1989-01-10 M.A.N. Roland Druckmaschinen Ag Separated ink fountain for a flexographic printing machine
DE8713787U1 (de) * 1987-06-03 1988-09-29 Zimmer, Johannes, Klagenfurt, Kärnten Einrichtung zum Auftragen fließfähiger Substanzen in Druck- und Beschichtungsmaschinen
US4991504A (en) * 1988-12-15 1991-02-12 De La Rue Giori S.A. Ink duct for a printing machine
DE3843017C1 (fr) * 1988-12-21 1990-05-23 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE3909878C1 (fr) * 1989-03-25 1990-08-02 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4001733A1 (de) * 1990-01-22 1991-07-25 Windmoeller & Hoelscher Rakelvorrichtung fuer ein spuelfarbwerk einer rotationsdruckmaschine
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
AU2944492A (en) * 1991-11-26 1993-06-28 Cornelis Gorter Inking cell doctor blade for an ink transfer body
DE4213662C2 (de) * 1992-04-25 1995-07-06 Koenig & Bauer Ag Verfahren zum Anstellen einer Kammerrakel für eine Rotationsdruckmaschine
DE4302671A1 (de) * 1993-01-30 1994-08-18 Roland Man Druckmasch Kurzfarbwerk
DE9405883U1 (de) * 1993-10-08 1994-06-09 Bööse, Ake, Lidingö Vorrichtung zum Abdichten des Endes einer Kammerrakel für Druckwerke

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE145993C (fr) *
CH413872A (de) * 1962-11-13 1966-05-31 Winkler Fallert & Co Maschf Vorrichtung zum Verhindern des Zusammenfliessens zweier Farben unter dem Farbmesser von Hochdruck-, Offsetdruck- und ähnlichen Maschinen mit Abteilkeilen
US5150651A (en) * 1991-06-10 1992-09-29 Flores Carlos R Doctor-blade assembly for flexographic press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19957464A1 (de) * 1999-11-29 2001-05-31 Heidelberger Druckmasch Ag Einrichtung zur Abdichtung einer Farbversorgung an Druckmaschinen
US6598525B2 (en) 1999-11-29 2003-07-29 Heidelberger Druckmaschinen Ag Device for sealing off an ink supply on printing machines

Also Published As

Publication number Publication date
EP0865917A3 (fr) 1998-12-02
EP0722833A3 (fr) 1996-07-31
EP0722833B1 (fr) 1999-05-19
DE4447123C1 (de) 1996-04-11
US5628250A (en) 1997-05-13
JP2886124B2 (ja) 1999-04-26
DE59505972D1 (de) 1999-06-24
EP0722833A2 (fr) 1996-07-24
JPH08230162A (ja) 1996-09-10

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