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EP0622191B1 - Wischvorrichtung einer Stichtiefdruckmaschine - Google Patents

Wischvorrichtung einer Stichtiefdruckmaschine Download PDF

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Publication number
EP0622191B1
EP0622191B1 EP94810162A EP94810162A EP0622191B1 EP 0622191 B1 EP0622191 B1 EP 0622191B1 EP 94810162 A EP94810162 A EP 94810162A EP 94810162 A EP94810162 A EP 94810162A EP 0622191 B1 EP0622191 B1 EP 0622191B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
wiping
cleaning
wiping cylinder
nozzles
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.)
Expired - Lifetime
Application number
EP94810162A
Other languages
English (en)
French (fr)
Other versions
EP0622191A1 (de
Inventor
Willy Stauffer
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 EP0622191A1 publication Critical patent/EP0622191A1/de
Application granted granted Critical
Publication of EP0622191B1 publication Critical patent/EP0622191B1/de
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
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/08—Wiping mechanisms
    • B41F9/16—Removing or recovering ink from wiping mechanisms
    • 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
    • B41F9/10—Doctors, scrapers, or like devices
    • B41F9/1018—Doctors, scrapers, or like devices using a wiping cylinder

Definitions

  • the present invention relates to a device for wiping a machine for intaglio printing comprising a wiping cylinder and an installation for the continuous cleaning of said cylinder, this installation comprising a container for receiving the cleaning liquid.
  • a device for wiping a machine for intaglio printing comprising a wiping cylinder and an installation for the continuous cleaning of said cylinder, this installation comprising a container for receiving the cleaning liquid.
  • which acts permanently on the wiping cylinder and cleaning elements in contact with the periphery of the wiping cylinder comprising, in the direction of rotation of this cylinder, a first cleaning element, which removes most of the ink from the wiping cylinder, followed, at defined distances, by several other elements constituted by brushes and / or scrapers, at least one row of nozzles parallel to the axis of the wiping cylinder, the nozzles being arranged for ejecting the cleaning liquid in the region of the region of contact of said first cleaning element with the wiping cylinder.
  • doctor blade is quite effective, since it alone removes practically 90% of the ink from the surface of the wiping cylinder, it has been found in use that, due to friction important between the doctor blade and the cylinder, friction which is reinforced by the angle inclination acute scraping with respect to the periphery of the wiping cylinder, the surface of the cylinder undergoes very great wear forces which risk damaging it, all the more so since this surface is made of synthetic material, in particular PVC. In addition, it was found that said doctor blade very quickly becomes sharp, which increases the wear of the wiping cylinder and forces the user to replace this doctor blade about every 24 hours.
  • the present invention proposes to overcome the drawbacks inherent in a steel doctor blade by sparing the surface of the wiping cylinder while reducing the cost of maintenance.
  • the installation according to the invention is characterized in that the first cleaning element is made of textile material in the form of a band which is mounted folded back on itself on and along a rigid support, so to overflow from it.
  • This textile material is preferably made of porous synthetic fibers.
  • a first cleaning element is thus obtained which is as effective as a rigid scraper but which, thanks to its flexibility, does not risk damaging the surface of the wiping cylinder, which therefore increases the life of the latter. Another advantage is that the wear being less than with a steel scraper, the life of the cleaning element itself is longer, of the order of eight days, which is clearly more economical for the user.
  • FIG. 1 represents a schematic view of the device for cleaning the wiping cylinder.
  • Figure 2 is an enlarged partial view of the contact area of the first cleaning element with the wiping cylinder.
  • the wiping device comprises a wiping cylinder 1, rotating in the direction of arrow F, intended to be in permanent contact with the plate cylinder not shown, the peripheral direction of rotation of this wiping cylinder 1 being opposite to that of the plate cylinder.
  • This wiping cylinder 1 is partially arranged inside a container 2 in which the cleaning installation is mounted.
  • the surface of the wiping cylinder 1 is made of synthetic material, in particular PVC, which ensures good wiping of the plate cylinder.
  • the cleaning installation comprises, in a manner known per se, several cleaning elements constituted, in the example considered, by a doctor blade 3 forming an obtuse angle with the periphery of the cylinder 1 located following this doctor blade direction of rotation of said cylinder, and by brushes 4 arranged at a distance from each other around the periphery of the cylinder 1.
  • These brushes 4, and if necessary the squeegee 3, are mounted in the container 2 on a common rail allowing them to be approached or simultaneously remove them from the surface of the wiping cylinder 1.
  • Nozzles for spraying a cleaning liquid are associated with each of these brushes 4 so that the region of the cylinder 1 located before the contact zone of each cleaning element is wet.
  • a first cleaning element 5 consisting of a textile material of porous synthetic fibers, with a thickness of between 5 and 20 mm, preferably 10 mm, sold for example by the company 3M under the name "Scotch-Brite” ® or "hand pad".
  • This textile material is in the form of a strip whose dimension in the axial direction of the cylinder corresponds to the length of the latter so that the entire surface is covered, and which is mounted, folded back on itself (FIG. 2), on and along a support 6 so as to protrude therefrom.
  • the inclination of the support 6 is adjustable to adjust the contact pressure between the strip of textile material and the surface of the cylinder 1, this support 6 having the same configuration as the doctor blade which, in the previous installations, was intended to carry the steel scraper.
  • This element 5 which is fixed in any known manner to the support 6, is intended to apply tangentially over the entire length of the wiping cylinder 1 during the rotation thereof, forming an acute angle with the periphery of the cylinder located after this element in the direction of rotation of the cylinder, and to rub its surface so as to remove approximately 90% of the quantity of ink present on the surface of the wiping cylinder.
  • Above the first cleaning element 5 is provided a row of spray nozzles 7 directed just before the area of contact of said element 5 with the cylinder 1.
  • nozzles 8 In the support 6 is provided a second row of nozzles 8 whose mouths are directed towards inside the fold formed by the first cleaning element 5. These nozzles 7 and 8 are intended to send under pressure a cleaning liquid which, on the one hand, deterges the ink and, on the other hand, wets and rinses permanently cleaning element 5, which prevents fouling thereof during friction.
  • the cleaning liquid from the nozzles 7, 8 and the nozzles associated with the brushes 4 is collected in the container 2 and flows through outlet orifices 11 so that the wiping cylinder 1 is not immersed in the soiled liquid.
  • a separation wall 2 ′ in the container 2 makes it possible to separate the cleaning liquid coming from the nozzles 7, 8, which is soiled by the greatest amount of ink from the less dirty liquid coming from the nozzles associated with the brushes 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Screen Printers (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (5)

  1. Wischvorrichtung für eine Stichtiefdruckmaschine mit einem Wischzylinder (1) und mit einer Installation zum kontinuierlichen Reinigen des erwähnten Zylinders, welche einen Behälter (2) zur Aufnahme einer ständig auf den Wischzylinder (1) wirkenden Flüssigkeit und Reinigungselemente in Berührung mit dem Umfang des Wischzylinders aufweist, wobei diese Installation, in Drehrichtung dieses Zylinders, ein erstes Reinigungselement (5), welches den grössten Teil der Farbe vom Wischzylinder (1) entfernt, gefolgt von mehreren, in bestimmten Abständen angeordneten weiteren Reinigungselementen, bestehend aus Bürsten (4) und/oder Rakeln (3), sowie wenigstens eine parallel zur Achse des Wischzylinders orientierte Reihe von Düsen (7, 8) aufweist, die zum Ausstossen der Reinigungsflüssigkeit in dem Bereich angeordnet sind, in welchem sich das erwähnte erste Reinigungselement (5) in Berührung mit dem Wischzylinder befindet, dadurch gekennzeichnet, dass das erwähnte erste Reinigungselement (5) aus Textilmaterial in Form eines Bandes besteht, welches auf sich selbst gefaltet auf einem starren Träger (6) und längs desselben derart montiert ist, dass es diesen Träger überragt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Textilmaterial aus porösen Kunstfasern besteht.
  3. Vorrichtung nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, dass das Textilmaterial eine Dicke von 5 bis 20 mm hat.
  4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Träger (6) justierbar ist, um den Kontaktdruck zwischen dem Band des Textilmaterials und der Oberfläche des Wischzylinders (1) einzustellen.
  5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Düsen (8) einer der erwähnten Düsenreihen ins Innere der von dem Band des Textilmaterials gebildeten Falte gerichtet sind.
EP94810162A 1993-04-30 1994-03-16 Wischvorrichtung einer Stichtiefdruckmaschine Expired - Lifetime EP0622191B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1318/93 1993-04-30
CH131893 1993-04-30

Publications (2)

Publication Number Publication Date
EP0622191A1 EP0622191A1 (de) 1994-11-02
EP0622191B1 true EP0622191B1 (de) 1997-01-22

Family

ID=4207639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94810162A Expired - Lifetime EP0622191B1 (de) 1993-04-30 1994-03-16 Wischvorrichtung einer Stichtiefdruckmaschine

Country Status (10)

Country Link
US (1) US5390598A (de)
EP (1) EP0622191B1 (de)
JP (1) JP3469303B2 (de)
KR (1) KR100330114B1 (de)
CN (1) CN1036641C (de)
AT (1) ATE148032T1 (de)
AU (1) AU664965B2 (de)
CA (1) CA2119628A1 (de)
DE (1) DE69401525T2 (de)
RU (1) RU2119432C1 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3234101B2 (ja) * 1994-05-09 2001-12-04 株式会社リコー 被記録材の皮膜状画像形成物質除去装置
US5575211A (en) * 1994-10-28 1996-11-19 Hycorr Machine Corporation Washing Arrangement for rotary printer
UA28061C2 (uk) * 1996-09-02 2000-10-16 Де Ля Рю Жіорі С.А. Спосіб приготування свіжого мийного розчину та обробки використаного мийного розчину і пристрій для його здійснення
IT1297042B1 (it) * 1997-12-31 1999-08-03 De La Rue Giori Sa Procedimento di produzione di soluzione di asciugatura fresca e di trattamento della soluzione di asciugatura usata e dispositivo di
US6196126B1 (en) 1999-01-12 2001-03-06 Intex Corporation Method and apparatus for preventing pigment buildup during a rotary screen printing process
JP2000326481A (ja) * 1999-05-25 2000-11-28 Komori Corp 凹版印刷機のワイピング装置
EP1361046A1 (de) 2002-05-06 2003-11-12 Kba-Giori S.A. Sprühdüse für eine Reinigungsvorrichtung in einer Druckmaschine
JP4706059B2 (ja) * 2005-07-20 2011-06-22 独立行政法人 国立印刷局 ワイピング自動洗浄装置
EP1764216A1 (de) * 2005-09-16 2007-03-21 Kba-Giori S.A. Vorrichtung zur Beschichtung eines Zylinders, insbesondere eines Wischzylinders einer Tiefdruckmaschine
KR100667882B1 (ko) * 2005-10-04 2007-01-11 주식회사 디엠에스 롤프린트 장치
CN102381019B (zh) 2005-11-25 2014-04-30 卡巴-诺塔赛斯有限公司 在印刷机处理期间用于探测在印刷基质上印刷错误发生的方法
EP1790473A1 (de) 2005-11-25 2007-05-30 Kba-Giori S.A. Verfahren zur Erfassung vom Eintreten von Druckfehlern auf Druckbogen während deren Bearbeitung in einer Druckmaschine
GB0601855D0 (en) * 2006-01-30 2006-03-08 Rue Currency And Security Prin Intaglio plate wiping system
EP1844930A1 (de) * 2006-04-11 2007-10-17 Kba-Giori S.A. Wischvorrichtung einer Druckmaschine
WO2009015144A1 (en) * 2007-07-25 2009-01-29 Air Motion Systems, Inc. Printing cylinder cleaning system
KR100887387B1 (ko) * 2007-08-24 2009-03-06 삼성전기주식회사 인쇄회로기판 제조장치 및 제조방법
JP2013056541A (ja) * 2011-08-15 2013-03-28 Komori Corp ワイピング装置
CN103302968B (zh) * 2013-06-25 2016-02-24 北京印钞有限公司 凹印机擦墨辊清洗方法及装置
CN103738054B (zh) * 2013-12-20 2016-08-17 深圳劲嘉集团股份有限公司 一种凹版印刷机自动洗版装置及实现方法
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
JP2018106063A (ja) * 2016-12-27 2018-07-05 エスプリンティンソリューション株式会社 画像形成装置
CN108248208A (zh) * 2018-01-30 2018-07-06 海宁美力针织有限公司 一种沙发套生产用印染装置
CN113524903A (zh) * 2021-07-14 2021-10-22 山东锦龙包装有限公司 一种食品包装袋彩印颜料刮除装置
CN113771489B (zh) * 2021-07-29 2023-04-28 阜阳市新世纪包装彩印有限公司 一种酒盒印刷用具有干墨刮除机构的印刷头

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1517914A (fr) * 1967-02-06 1968-03-22 Procédé de nettoyage du cylindre essuyeur dans les machines à cylindres pour impression en taille douce et dispositif de mise en oeuvre dudit procédé
US4135448A (en) * 1974-09-11 1979-01-23 Moestue Hans J Mechanism for cleaning a cylinder of an offset lithographic printing press
CH596988A5 (de) * 1976-09-17 1978-03-31 De La Rue Giori Sa
JPS58101060A (ja) * 1981-12-12 1983-06-16 Komori Printing Mach Co Ltd 凹版印刷機のワイピング装置
JPH02215533A (ja) * 1989-02-17 1990-08-28 B J Trading Kk 印刷機のインキ供給ローラ洗浄装置
CH681875A5 (de) * 1990-08-17 1993-06-15 De La Rue Giori Sa
JP2522216Y2 (ja) * 1991-05-22 1997-01-08 株式会社小森コーポレーション 凹版印刷機のワイピング装置
AU648486B2 (en) * 1991-10-17 1994-04-21 De La Rue Giori S.A. Wiping device of an intaglio printing machine

Also Published As

Publication number Publication date
ATE148032T1 (de) 1997-02-15
AU664965B2 (en) 1995-12-07
JPH06312501A (ja) 1994-11-08
US5390598A (en) 1995-02-21
CA2119628A1 (en) 1994-10-31
AU5792994A (en) 1994-11-03
RU2119432C1 (ru) 1998-09-27
DE69401525D1 (de) 1997-03-06
CN1116162A (zh) 1996-02-07
EP0622191A1 (de) 1994-11-02
KR100330114B1 (ko) 2002-07-27
CN1036641C (zh) 1997-12-10
DE69401525T2 (de) 1997-07-31
JP3469303B2 (ja) 2003-11-25

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