EP0538190A1 - Dispositif d'essuyage pour machine à imprimer en creux - Google Patents

Dispositif d'essuyage pour machine à imprimer en creux Download PDF

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Publication number
EP0538190A1
EP0538190A1 EP92810760A EP92810760A EP0538190A1 EP 0538190 A1 EP0538190 A1 EP 0538190A1 EP 92810760 A EP92810760 A EP 92810760A EP 92810760 A EP92810760 A EP 92810760A EP 0538190 A1 EP0538190 A1 EP 0538190A1
Authority
EP
European Patent Office
Prior art keywords
ink
slide
cylinder
paint
squeegee
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
EP92810760A
Other languages
German (de)
English (en)
Other versions
EP0538190B1 (fr
Inventor
Johannes Georg Schaede
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.)
KBA Notasys SA
Original Assignee
De la Rue Giori SA
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 De la Rue Giori SA filed Critical De la Rue Giori SA
Publication of EP0538190A1 publication Critical patent/EP0538190A1/fr
Application granted granted Critical
Publication of EP0538190B1 publication Critical patent/EP0538190B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/008—Cleaning arrangements or devices for doctor blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/08—Wiping mechanisms
    • B41F9/16—Removing or recovering ink from wiping mechanisms

Definitions

  • the invention relates to a wiping device of an intaglio printing machine with at least one cylinder, to which the ink raised from the printing plates is transferred, and with a doctor blade attached to this cylinder for removing the ink from the cylinder surface.
  • Such wiping devices have been known for a long time and either work as wiping devices in the actual sense with a wiping cylinder lying against the plate cylinder, which completely cleans the surface of the gravure printing plates outside the stitch pits (for example DE-PS 1 229 547), or are designed as pre-wiping devices (for example DE-PS 1 058 074 or EP-B-0 091 709), which are additionally installed in the direction of rotation of the plate cylinder in front of the actual wiper device.
  • the wiping cylinder is cleaned in such a way that the majority of the paint is first removed by a doctor blade and then the wiping cylinder surface is completely cleaned of the adhering paint with the aid of a suitable cleaning liquid and other cleaning elements.
  • Pre-wiping devices are generally used in intaglio printing machines with direct inking and have the task of pressing the ink previously applied to the printing plates into the stitch pits and removing excess ink, while the actual wiping then takes place for the purpose of completely cleaning the plate surface.
  • Known pre-wiping devices either have only one pre-wiping cylinder rolling on the plate cylinder, against which a doctor blade and possibly further cleaning elements for removing the ink from the cylinder surface are present (DE-PS 1.058.074), or consist of two cylinders (EP-B-0 091 709), namely a pre-wiping cylinder rolling on the plate cylinder and a further cylinder lying against it, which takes over the color from the pre-wiping cylinder and is in turn cleaned by a doctor blade and possibly further cleaning elements.
  • the ink reaching the doctor blade has to be removed from the doctor blade at regular intervals in order to ensure proper wiping or pre-wiping over a long period of time.
  • This removal of the ink from the squeegee has so far been carried out manually by the printer with a spatula, which means a strenuous, often repetitive and time-consuming job.
  • the object of the present invention is to improve a wiping device, in particular a pre-wiping device, in such a way that the ink is removed from the doctor blade regularly and reliably in a mechanical manner and can be fed to an ink collecting container.
  • the wiper device according to the invention is achieved by the features specified in the characterizing part of claim 1.
  • the arrangement is preferably such that the paint slide and the wall parts are designed to be complementary to one another such that before one or the other end position of the paint slide is reached, the color displaced by the latter moves into a space that is at least approximately completely closed by walls of the paint slide and the relevant wall part , which is almost completely filled by the color slide in the end position.
  • the top view of the two wall parts is expediently U-shaped and their U legs are directed towards one another, and the paint slider has a dimension perpendicular to its direction of thrust that is adapted to the distance between the two U legs of a wall part, so that it is in its two end positions engages inside one or the other U-shaped wall part.
  • the paint slider acts like a kind of piston, which almost completely displaces the paint within the U-shaped wall part.
  • the wiper device is preferably designed as a pre-wiper device and works with an actual pre-wiping cylinder which rests on the plate cylinder, and with a second cylinder made of ceramic, which takes over the color from the pre-wiping cylinder and which is itself cleaned of paint by the adjacent doctor blade.
  • the pre-wiping device consists of a pre-wiping cylinder 2, a cylinder 3 made of ceramic, a doctor blade 4 lying against the cylinder 3 and inclined downwards with its parts for later displacement of the ink, as well as two ink pumps 11, which act on both sides of the ink Parts are installed on the back of the squeegee 4.
  • the pre-wiping cylinder 2 rolled off on the printing plates (not shown) of a plate cylinder 1 belonging to an intaglio printing machine in order to press the ink into the stitch pits and to remove excess ink from the printing plates.
  • the paint then reaches the ceramic cylinder 3 rolling on the pre-wiping cylinder 2 and is removed from the surface thereof using the doctor blade 4.
  • the parts described below with reference to FIGS. 2 to 4 are installed on the squeegee 4.
  • wall parts 6 are fastened on the surface thereof, which are U-shaped in plan view are.
  • the middle sections 6b or the bases of these U-shaped wall parts have inclined inner surfaces 7 and run parallel to the side edges of the squeegee 4, while their U-legs 6a are directed towards one another and opposite one another.
  • These two lateral wall parts 6 delimit between them a zone referred to below as the receiving area 5, into which the ink 15 flowing downward on the squeegee surface reaches.
  • this receiving area 5 there is a paint slider 8, which is constantly mechanically moved back and forth in the transverse direction of the squeegee 4 between the two wall parts 6 in the sense of the double arrow according to FIG. 3, and the ink 15 entering the receiving area 5 in this way alternately inside of one and the other U-shaped wall part 6 pushes.
  • an ink pump 11 is installed below the level of the receiving area 5, the slot-shaped inlet opening 12 of which opens into the receiving area 5 between the two U-legs 6a of the wall part 6 and extends along the lower edge of the inner surface 7 of this wall part 6 extends.
  • the ink pump 11 is a gear pump with two meshing gears 11a, 11b, the axes of which run parallel to the slot-shaped inlet opening 12 and extend over the entire length of this inlet opening, that is to say over the entire distance between the two U-legs 6a, extend.
  • the outlet openings 13 of the two paint pumps 11 are connected to a container (not shown) for holding the paint.
  • Each ink pump 11 is driven by a drive 14.
  • the color slide 8 has a dimension perpendicular to the direction of thrust, which is adapted to the distance between the two U-legs 6a of a wall part 6, so that it is in each End position can intervene in the interior of the relevant wall part 6.
  • the color slide 8 has the shape of an inverted V in cross section and slides with the V tip or its apex edge on the receiving area 5; the two obliquely outwardly inclined side surfaces 9 of the paint slide 8, which push the paint 15 in front of them, have the same inclination and almost the same width as the inner surface 7 facing them of the central section 6b of the wall part 6 in question.
  • the paint slide 8 instructs on its upper side a roof wall 10 projecting roof-shaped on all sides, which is parallel to the surface of the receiving area 5 and at a distance from this corresponding to the height of the wall parts 6; as a result, the wall part 6 in question is overlapped by the cover wall 10 in each end position of the paint slide 8, and the interior delimited by the wall part 6 is closed at the top.
  • the paint slider acts like a piston, which in its end position almost completely fills the practically all-round interior between the U-legs 6a. Therefore, with each push of the ink slide 8, practically all of the ink 15 is displaced from the receiving area 5 of the squeegee 4 and squeezed into the relevant inlet opening 12 of the ink pump 11, from where it is conveyed into the ink receiving container.
  • the arrangement thus ensures a during printing reliable removal of the ink from the squeegee.
  • Any known sliding mechanism with reversal of movement can be used for the automatic back and forth movement of the color slide 8.
  • the mentioned receiving area 5 of the doctor blade 4 can be formed by a trough-shaped depression provided in this doctor blade, at the ends of which the wall parts 6 are fastened and in which the ink slide 8 is moved back and forth.
  • the invention is not limited to the exemplary embodiment described, but rather allows for numerous variants, in particular in the design and shape of the wall parts and the paint slide, and also with regard to the structure of the wiper device and the paint pumps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Screen Printers (AREA)
  • Ink Jet (AREA)
EP92810760A 1991-10-17 1992-10-07 Dispositif d'essuyage pour machine à imprimer en creux Expired - Lifetime EP0538190B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH304991 1991-10-17
CH3049/91 1991-10-17

Publications (2)

Publication Number Publication Date
EP0538190A1 true EP0538190A1 (fr) 1993-04-21
EP0538190B1 EP0538190B1 (fr) 1996-04-03

Family

ID=4247467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810760A Expired - Lifetime EP0538190B1 (fr) 1991-10-17 1992-10-07 Dispositif d'essuyage pour machine à imprimer en creux

Country Status (10)

Country Link
US (1) US5222432A (fr)
EP (1) EP0538190B1 (fr)
JP (1) JP3133516B2 (fr)
KR (1) KR100187319B1 (fr)
CN (1) CN1049183C (fr)
AT (1) ATE136256T1 (fr)
AU (1) AU648486B2 (fr)
CA (1) CA2079994C (fr)
DE (1) DE59205898D1 (fr)
RU (1) RU2067932C1 (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
DE102006025577B3 (de) * 2006-06-01 2007-05-10 Koenig & Bauer Ag Wischvorrichtung einer Stichtiefdruckmaschine

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE148032T1 (de) * 1993-04-30 1997-02-15 De La Rue Giori Sa Wischvorrichtung einer stichtiefdruckmaschine
JP4163923B2 (ja) * 2002-10-01 2008-10-08 株式会社小森コーポレーション 凹版印刷機
JP2005271421A (ja) * 2004-03-25 2005-10-06 Komori Corp 凹版印刷機
CN104494283A (zh) * 2014-11-28 2015-04-08 无锡市晨阳彩印厂 可收集存储油墨的油墨刮刀
CN104494284A (zh) * 2014-11-28 2015-04-08 无锡市晨阳彩印厂 带弧形刮刀面的油墨刮刀装置
TWI574846B (zh) * 2016-02-18 2017-03-21 財團法人工業技術研究院 凹版印刷裝置
CN106379052B (zh) * 2016-11-17 2018-01-19 重庆强大巴郡知识产权服务有限公司 瓷砖印花装置
DE102017219709A1 (de) * 2016-11-28 2018-05-30 Heidelberger Druckmaschinen Ag Druckmaschine
DE102017222345A1 (de) * 2017-01-13 2018-07-19 Heidelberger Druckmaschinen Ag Rakelvorrichtung einer Druckmaschine
CN109094226B (zh) * 2018-06-08 2021-01-08 合肥华冠包装科技有限公司 一种纸质包装盒凹版印刷工艺及其印刷设备
CN110171188B (zh) * 2019-06-14 2023-11-28 山东鲁烟莱州印务有限公司 一种凹印机刮墨刀口自动清理装置及其清理方法
CN112693216B (zh) * 2020-12-09 2022-04-12 南京三隆包装有限公司 一种可满足不同厚度待印刷品固定的印刷机及其使用方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE282786C (fr) *
GB285140A (en) * 1926-11-10 1928-02-10 Wilhelm Mailaender Improvements in or relating to rotary intaglio printing machines
US1837671A (en) * 1929-05-31 1931-12-22 Pirie William James Ink removing contrivance for printing machines
US2098750A (en) * 1936-04-04 1937-11-09 Hoe & Co R Inking mechanism for rotary intaglio printing machines
GB550287A (en) * 1940-10-24 1943-01-01 Goss Printing Press Co Ltd Improvements in or relating to ink fountains for rotary printing presses

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH438381A (de) * 1965-04-14 1967-06-30 Giori Gualtiero Reinigungsvorrichtung für Wischzylinder in Ein- oder Mehrfarbenstahlstichdruckmaschinen
US3988988A (en) * 1975-04-21 1976-11-02 Addressograph Multigraph Corporation Device for drying the surface of a blanket cylinder of ink washing solvent
AU550695B2 (en) * 1982-04-07 1986-03-27 De La Rue Giori S.A. Copperplate engraving machine for paper currency
EP0368485A3 (fr) * 1988-10-31 1991-01-30 Seiken Graphics, Inc. Impression lithographique
US5085144A (en) * 1990-05-03 1992-02-04 Motter Printing Press Co. Ink fountain apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE282786C (fr) *
GB285140A (en) * 1926-11-10 1928-02-10 Wilhelm Mailaender Improvements in or relating to rotary intaglio printing machines
US1837671A (en) * 1929-05-31 1931-12-22 Pirie William James Ink removing contrivance for printing machines
US2098750A (en) * 1936-04-04 1937-11-09 Hoe & Co R Inking mechanism for rotary intaglio printing machines
GB550287A (en) * 1940-10-24 1943-01-01 Goss Printing Press Co Ltd Improvements in or relating to ink fountains for rotary printing presses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 305 (M-992)(4248) 29. Juni 1990 & JP-A-2 098 446 (FUJI KIKAI KOGYO K. K.) 10. April 1990 *

Cited By (6)

* 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
DE102006025577B3 (de) * 2006-06-01 2007-05-10 Koenig & Bauer Ag Wischvorrichtung einer Stichtiefdruckmaschine

Also Published As

Publication number Publication date
AU648486B2 (en) 1994-04-21
JPH05220924A (ja) 1993-08-31
RU2067932C1 (ru) 1996-10-20
ATE136256T1 (de) 1996-04-15
CN1049183C (zh) 2000-02-09
DE59205898D1 (de) 1996-05-09
US5222432A (en) 1993-06-29
CA2079994C (fr) 2004-03-30
JP3133516B2 (ja) 2001-02-13
EP0538190B1 (fr) 1996-04-03
KR930007649A (ko) 1993-05-20
CN1075913A (zh) 1993-09-08
AU2620692A (en) 1993-04-22
CA2079994A1 (fr) 1993-04-18
KR100187319B1 (ko) 1999-05-15

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