EP0722833A2 - Encreur sous forme de rail - Google Patents

Encreur sous forme de rail Download PDF

Info

Publication number
EP0722833A2
EP0722833A2 EP95120199A EP95120199A EP0722833A2 EP 0722833 A2 EP0722833 A2 EP 0722833A2 EP 95120199 A EP95120199 A EP 95120199A EP 95120199 A EP95120199 A EP 95120199A EP 0722833 A2 EP0722833 A2 EP 0722833A2
Authority
EP
European Patent Office
Prior art keywords
anilox roller
chamber
doctor blade
side jaws
sealing surface
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
Application number
EP95120199A
Other languages
German (de)
English (en)
Other versions
EP0722833A3 (fr
EP0722833B1 (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
Priority to EP98107632A priority Critical patent/EP0865917A3/fr
Publication of EP0722833A2 publication Critical patent/EP0722833A2/fr
Publication of EP0722833A3 publication Critical patent/EP0722833A3/fr
Application granted granted Critical
Publication of EP0722833B1 publication Critical patent/EP0722833B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 chambered doctor blade of an inking unit of a rotary printing press provided with an anilox roller according to the preamble of claim 1.
  • a chambered doctor blade is known from EP 04 38 731 A2.
  • An ink chamber of the chamber doctor blade is sealed on the front side by means of side jaws.
  • These side jaws are each provided with a sealant which can be adjusted to an anilox roller and which is adapted to a curvature of a lateral surface of the anilox roller.
  • These sealants are made of elastic material and are coated with a low-friction material on their contact surface with the outer surface of the anilox roller.
  • the disadvantage here is that coating measures are necessary in order to obtain a low-friction contact surface of the sealing means with the anilox roller.
  • US 51 50 651 A shows a generic doctor blade, the ink chamber of which is sealed by means of side jaws. These side jaws are provided with depressions which act as lubrication pockets.
  • the invention has for its object to provide a chamber doctor blade of an inking unit provided with an anilox roller of a rotary printing press, wherein the side side jaws of the chamber doctor blade are pressed with a sealing surface against a lateral surface of an anilox roller and while rotating Anilox roller Solid friction between side jaws and anilox roller is avoided.
  • 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 the side jaws as well as on the outer surface of an anilox roller, which results in a longer service life and machine downtimes 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 shown in the drawing 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 essentially consists 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 with a Provide depression 11 and its roller-near ends 11, 12 have fastening surfaces 13, 14 inclined with respect to a radial direction of the anilox roller 2.
  • 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. B.
  • 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 can 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 provided on their outer end faces 33, 34 facing away from the ink chamber 22 with wipers 36, 37 which act in a wedge shape beyond the outer end face 33, 34 of the side jaws 7, 8 in the direction of rotation of the anilox roller 2.
  • an incision 38 of depth t38 and width b38 runs below and approximately parallel to the sealing surface 21 at the incoming end of the respective side jaws 7, 8.
  • the wiper 36, 37 becomes outward by bending a part of the side jaws 7, 8 , ie the direction facing away from the ink chamber 22 such that an inner surface 39, 41 of the scraper 36, 37 over the outer end surface 34, 36 of the side jaws 7, 8 in a protrusion ü, z. B. 3 mm, protrudes.
  • the stripper 36, 37 thus forms a wedge-shaped taper with respect to the inner end face 23, 24 of the side jaws 7, 8.
  • 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 depression 27 thus forms a lubrication pocket of a hydrodynamic one, or if the ink chamber 22 is operated with excess pressure is a hydrostatic plain bearing, the paint serves 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 wipers 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)
EP95120199A 1994-12-29 1995-12-20 Encreur sous forme de rail Expired - Lifetime EP0722833B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98107632A EP0865917A3 (fr) 1994-12-29 1995-12-20 Chambre de racle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4447123 1994-12-29
DE4447123A DE4447123C1 (de) 1994-12-29 1994-12-29 Kammerrakel für eine Rotationsdruckmaschine

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP98107632A Division EP0865917A3 (fr) 1994-12-29 1995-12-20 Chambre de racle

Publications (3)

Publication Number Publication Date
EP0722833A2 true EP0722833A2 (fr) 1996-07-24
EP0722833A3 EP0722833A3 (fr) 1996-07-31
EP0722833B1 EP0722833B1 (fr) 1999-05-19

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 After (1)

Application Number Title Priority Date Filing Date
EP98107632A Withdrawn EP0865917A3 (fr) 1994-12-29 1995-12-20 Chambre de racle

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
EP0974462A2 (fr) * 1998-07-17 2000-01-26 Armstrong World Industries, Inc. Dispositifs d'encrage et de nettoyage dans une machine rotative imprimante
EP1279500A2 (fr) * 2001-07-25 2003-01-29 MAN Roland Druckmaschinen AG Procédé et dispositif de dosage d'un produit liquide dans une machine de traitement

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
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
EP1103377B1 (fr) 1999-11-29 2005-02-09 Goss International Montataire S.A. Dispositif d'étanchéification d'une alimentation en encre dans des machines d'impression
DE19957464A1 (de) * 1999-11-29 2001-05-31 Heidelberger Druckmasch Ag Einrichtung zur Abdichtung einer Farbversorgung an Druckmaschinen
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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2437584A1 (de) * 1973-11-22 1975-05-28 Polygraph Leipzig Farbkasten an druckmaschinen
EP0111141A1 (fr) * 1982-11-06 1984-06-20 Koenig & Bauer Aktiengesellschaft Coin de séparation de l'encre dans un encrier de rotative d'impression
DE4241792A1 (de) * 1991-11-26 1994-06-16 Cornelis Gorter Einrichtung zum Beschichten von Trägermaterial mit einem Beschichtungsmedium, insbesondere Farbkammerrakel für einen farbübertragenden, gerasterten kreiszylindrischen Körper, wie eine Rasterwalze oder einen gravierten Zylinder
DE4302671A1 (de) * 1993-01-30 1994-08-18 Roland Man Druckmasch Kurzfarbwerk

Family Cites Families (13)

* 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
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 (fr) * 1987-06-03 1988-09-29 Zimmer, Johannes, Klagenfurt, Kaernten, At
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
US5150651A (en) * 1991-06-10 1992-09-29 Flores Carlos R Doctor-blade assembly for flexographic press
DE9215854U1 (fr) * 1991-11-26 1993-03-25 Gorter, Cornelis, Wapenveld, Nl
DE4213662C2 (de) * 1992-04-25 1995-07-06 Koenig & Bauer Ag Verfahren zum Anstellen einer Kammerrakel für eine Rotationsdruckmaschine
DE9405883U1 (de) * 1993-10-08 1994-06-09 Boeoese Ake Vorrichtung zum Abdichten des Endes einer Kammerrakel für Druckwerke

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2437584A1 (de) * 1973-11-22 1975-05-28 Polygraph Leipzig Farbkasten an druckmaschinen
EP0111141A1 (fr) * 1982-11-06 1984-06-20 Koenig & Bauer Aktiengesellschaft Coin de séparation de l'encre dans un encrier de rotative d'impression
DE4241792A1 (de) * 1991-11-26 1994-06-16 Cornelis Gorter Einrichtung zum Beschichten von Trägermaterial mit einem Beschichtungsmedium, insbesondere Farbkammerrakel für einen farbübertragenden, gerasterten kreiszylindrischen Körper, wie eine Rasterwalze oder einen gravierten Zylinder
DE4302671A1 (de) * 1993-01-30 1994-08-18 Roland Man Druckmasch Kurzfarbwerk

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0974462A2 (fr) * 1998-07-17 2000-01-26 Armstrong World Industries, Inc. Dispositifs d'encrage et de nettoyage dans une machine rotative imprimante
EP0974462A3 (fr) * 1998-07-17 2000-04-12 Armstrong World Industries, Inc. Dispositifs d'encrage et de nettoyage dans une machine rotative imprimante
EP1195246A1 (fr) * 1998-07-17 2002-04-10 Armstrong World Industries, Inc. Remplacement des dispositifs d'encrage dans une machine à imprimer
US6401618B1 (en) 1998-07-17 2002-06-11 Awi Licensing Company Printing machine having reciprocating carriage carrying both cleaning and ink delivery devices
US6516720B2 (en) 1998-07-17 2003-02-11 Awi Licensing Company Printing machines
EP1279500A2 (fr) * 2001-07-25 2003-01-29 MAN Roland Druckmaschinen AG Procédé et dispositif de dosage d'un produit liquide dans une machine de traitement
EP1279500A3 (fr) * 2001-07-25 2007-01-03 MAN Roland Druckmaschinen AG Procédé et dispositif de dosage d'un produit liquide dans une machine de traitement

Also Published As

Publication number Publication date
JPH08230162A (ja) 1996-09-10
US5628250A (en) 1997-05-13
EP0722833A3 (fr) 1996-07-31
JP2886124B2 (ja) 1999-04-26
EP0722833B1 (fr) 1999-05-19
DE4447123C1 (de) 1996-04-11
EP0865917A3 (fr) 1998-12-02
EP0865917A2 (fr) 1998-09-23
DE59505972D1 (de) 1999-06-24

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