EP1293342A1 - Joint d'étanchéité pour un encreur à racles d'une machine à imprimer rotative - Google Patents

Joint d'étanchéité pour un encreur à racles d'une machine à imprimer rotative Download PDF

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Publication number
EP1293342A1
EP1293342A1 EP02011889A EP02011889A EP1293342A1 EP 1293342 A1 EP1293342 A1 EP 1293342A1 EP 02011889 A EP02011889 A EP 02011889A EP 02011889 A EP02011889 A EP 02011889A EP 1293342 A1 EP1293342 A1 EP 1293342A1
Authority
EP
European Patent Office
Prior art keywords
sealing
ink chamber
inking roller
axis
sealing body
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Withdrawn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
EP02011889A
Other languages
German (de)
English (en)
Inventor
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.)
Filing date
Publication date
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP1293342A1 publication Critical patent/EP1293342A1/fr
Withdrawn legal-status Critical Current

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

Definitions

  • the invention relates to an ink chamber for rotary printing machines according to the preamble of claim 1, a sealing body for such an ink chamber and a method for sealing the ink chamber.
  • Ink chambers for rotary printing presses are known.
  • EP 0 812 687 A2 shows such an ink chamber, which falls under the preamble of claim 1.
  • ink chambers which are mainly used in flexographic printing, there is a loss of color on the seals on the front. These color losses cause costs and cleaning effort.
  • the object of the present invention is a color chamber propose less color loss.
  • FIG. 1 shows a section through an ink chamber 1, which is delimited by the ink roller 2, which rotates in the direction of arrow 3 during operation, a back wall 4 of the ink chamber, and the doctor blades 5, which can be adjusted in a wedge-like manner on the ink roller.
  • the doctor blades are fastened to the rear wall of the ink chamber with special fastening elements 6 and can be adjusted against the inking roller.
  • the sealing element 7 takes over the end sealing of the chamber.
  • Ink chambers of this type are mainly used in flexographic printing. Ink chambers can also be built in a modified form. For example, asymmetrical ink chambers are known.
  • FIG. 1 shows a section through an ink chamber 1, which is delimited by the ink roller 2, which rotates in the direction of arrow 3 during operation, a back wall 4 of the ink chamber, and the doctor blades 5, which can be adjusted in a wedge-like manner on the ink roller.
  • the doctor blades are fastened to the rear wall of the
  • FIG. 2 shows a plan view of an ink chamber 1, the ink roller 2 being moved away from the ink chamber, so that the view extends into the interior of the doctor chamber.
  • the two doctor blades 5 and the ink chamber rear wall can thus be seen from the limiting elements already mentioned.
  • the sealing element 7 is fastened between the barrier plate 11 and the intermediate plate.
  • the intermediate plate is in turn pressed against the sealing element 7 and the ink chamber rear wall 4 by the clamping plate 9.
  • the fastening element 12 is used for this purpose, among other things.
  • it has a barrier which is made of sheet metal or plastic and is located in front of the seal.
  • the seal 7 is installed so that its end face 13, which faces the inside of the ink chamber, is orthogonal to the axis of movement of the roller 2.
  • the direction of movement of the roller is indicated by the straight arrow 16.
  • the sealing lip 8 of the seal 7 extends at an angle greater than 0 ° with respect to the end face 14. At least the part of the sealing lip between the two edges 18 thus extends at an angle ⁇ with respect to the axis of rotation of the roller, which differs from 90 °. In this context, acute angles are preferred.
  • a seal of this type is also shown in Figures 5 to 7. FIG.
  • FIG. 5 shows the side 13 of the seal 7 facing the ink chamber in the installed state.
  • the seal 7 has a recess 16 which improves the elasticity of the sealing lip 8.
  • FIG. 6 shows another view of the seal 7, which discloses the manner in which a part of the sealing lip 8 between the two edges 18 is inclined with respect to the end face 13.
  • FIG. 7 shows the end face 17 of the seal 7 facing away from the ink chamber.
  • Figures 3 and 4 show another embodiment of the invention.
  • Figure 3 shows a section through a device according to the invention, which is largely similar to Figure 1. Only the front-side boundary elements of the ink chamber 1 (e.g. barrier plate 11 and seal 7) have not been shown.
  • FIG. 4 shows, similarly to FIG. 2, a top view of an ink chamber 1, the inking roller 2 having been moved away from the ink chamber, so that the view extends into the interior of the doctor chamber.
  • the entire seal 22 is installed at an angle other than 90 ° with respect to the axis of rotation D of the roller movement.
  • the sealing lip 8 of the seal used is identical to the edge of the inner end face 13 of the seal 7 facing the roller 2. Since the entire seal 7 is at an angle other than 90 ° to the axis of rotation D of the roller movement, the sealing lip is in this embodiment over its entire length at an angle ⁇ other than 90 °.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP02011889A 2001-09-14 2002-07-22 Joint d'étanchéité pour un encreur à racles d'une machine à imprimer rotative Withdrawn EP1293342A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10145534 2001-09-14
DE10145534 2001-09-14

Publications (1)

Publication Number Publication Date
EP1293342A1 true EP1293342A1 (fr) 2003-03-19

Family

ID=7699161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02011889A Withdrawn EP1293342A1 (fr) 2001-09-14 2002-07-22 Joint d'étanchéité pour un encreur à racles d'une machine à imprimer rotative

Country Status (2)

Country Link
US (1) US20030051619A1 (fr)
EP (1) EP1293342A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10255411A1 (de) * 2002-11-28 2004-06-24 Windmöller & Hölscher Kg Farbkammerrakel
JP2005088586A (ja) * 2003-09-12 2005-04-07 Metronic Ag インキ壺
JP4368386B2 (ja) * 2007-02-08 2009-11-18 株式会社東京機械製作所 輪転機用インキレール
US9085131B1 (en) * 2012-06-08 2015-07-21 Valley Holdings, Llc End seal for an ink chamber of a printing machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4982660A (en) * 1988-12-21 1991-01-08 Man Roland Druckmaschinen Ag Chambered doctor blade inker system
US5044277A (en) * 1989-03-25 1991-09-03 Man Roland Druckmaschinen Ag Fluid application system for a printing machine cylinder, especially chambered doctor blade inker
EP0812687A2 (fr) 1996-06-10 1997-12-17 Paper Converting Machine Company Dispositif d'encrage pour presse à imprimer et procédé

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408183C1 (de) * 1984-03-06 1985-03-28 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Farbkasten fuer Druckmaschinen
GB2278315B (en) * 1993-05-27 1996-06-12 Roland Man Druckmasch Chambered doctor blade unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4982660A (en) * 1988-12-21 1991-01-08 Man Roland Druckmaschinen Ag Chambered doctor blade inker system
US5044277A (en) * 1989-03-25 1991-09-03 Man Roland Druckmaschinen Ag Fluid application system for a printing machine cylinder, especially chambered doctor blade inker
EP0812687A2 (fr) 1996-06-10 1997-12-17 Paper Converting Machine Company Dispositif d'encrage pour presse à imprimer et procédé

Also Published As

Publication number Publication date
US20030051619A1 (en) 2003-03-20

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