EP0527316A1 - Installation de nettoyage d'une bande pour nettoyer une bande destinée à être imprimée - Google Patents

Installation de nettoyage d'une bande pour nettoyer une bande destinée à être imprimée Download PDF

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Publication number
EP0527316A1
EP0527316A1 EP92110882A EP92110882A EP0527316A1 EP 0527316 A1 EP0527316 A1 EP 0527316A1 EP 92110882 A EP92110882 A EP 92110882A EP 92110882 A EP92110882 A EP 92110882A EP 0527316 A1 EP0527316 A1 EP 0527316A1
Authority
EP
European Patent Office
Prior art keywords
web
printing
washcloth
cleaning system
section
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
EP92110882A
Other languages
German (de)
English (en)
Other versions
EP0527316B1 (fr
Inventor
Herbert Stanka
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.)
Baldwin Gegenheimer GmbH
Original Assignee
Baldwin Gegenheimer GmbH
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 Baldwin Gegenheimer GmbH filed Critical Baldwin Gegenheimer GmbH
Publication of EP0527316A1 publication Critical patent/EP0527316A1/fr
Application granted granted Critical
Publication of EP0527316B1 publication Critical patent/EP0527316B1/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
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/002—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing cleaning devices for sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/24—Wiping devices using rolls of cleaning cloth
    • B41P2235/246—Pressing the cleaning cloth against the cylinder

Definitions

  • the invention relates to a web cleaning system for cleaning a web to be printed before it runs into the printing unit of a web printing machine.
  • the web can be cleaned on one side or on both sides.
  • Dust and other dirt particles are deposited on the web to be printed, especially if the web is electrostatically charged due to friction or other influences. Such dirt particles deteriorate the print quality and reduce the service life of the printing blankets (blankets) and the printing unit.
  • Known devices for cleaning the web before the web is printed in a printing unit consist of suction nozzles, the dirt particles from both sides of the web suck off. It is also possible to use brushes to brush the web. Both known possibilities have the disadvantage that they scratch the web surface and thereby fibers of the web are raised, which are then torn off in the printing unit and impair the printing blanket and the printing quality.
  • the web to be printed is usually a paper web. However, the web can also consist of other materials or be coated with, for example, aluminum or plastic.
  • the object of the invention is to improve the print quality, to extend the operating time until the printing blankets are cleaned, and to extend the service life of the printing blankets and the printing units by avoiding dirt particles.
  • a web cleaning system 14 is integrated in the feed mechanism 4 and serves to clean the printing web 6 to be printed on one side 16 of the web section 18 located between the rollers 10 and 12.
  • the printing web 6 to be printed can be made of paper or another material or a multi-layer web consist of the same or different materials.
  • the web 6 to be printed can be a paper web coated with plastic.
  • the web cleaning system 14 contains a washing cloth 20 which is approximately as wide as the printing web 6 to be printed.
  • the washing cloth 20 can be a single-layer or multi-layer cloth and consists, for example, of wool, leather or preferably non-woven. It is important that the washcloth 20 is made of such a material or is of such a nature that it can store liquid on its side 22 to be applied to the printing web 6 and this liquid forms a lubricating film on contact with the printing web 6 and the transfer of Dirt particles from the printing web 6 supported on the washcloth 20.
  • the washcloth 20 has a very long length and is unwound from a clean cloth roll 24 and wound onto a dirty cloth roll 28 driven by a motor 26 in the direction of an arrow 30. During this winding process, the washcloth section 32 located between these two rollers 24 and 28 can be lifted off the printing web 6.
  • a positioning device 34 which contains a membrane 36 that is expandable in the direction of the web section 18 and a compressed air source 38, is used for contacting the washcloth section 32 with the web section 18 and for decontacting. Compressed air from the compressed air source 38 generates in a pressure chamber 40 a pressure which urges the membrane towards the web section 18.
  • the membrane 36 is elastic, so that when the pressure in the pressure chamber 40 is reduced, it recedes from the web section 18 and thereby causes the washcloth section 32 to be decontacted from the web section 18.
  • the wash cloth is preferably not wound onto the roll of dirty cloth by the motor 26, but is kept at a standstill when it contacts the printing web 6 to be cleaned and subsequently printed in its section 18.
  • At least a small relative movement for the wiping action is required between the wash cloth 20 and the printing web 6.
  • This relative movement can be generated by the movement of the printing web 6 relative to the fixed washing cloth 20 or by movements of the printing web 6 and the washing cloth 20.
  • the cleaning effect is enhanced if, according to the invention, the washcloth 20 is moist, at least in its washcloth section 32 on its side 22 facing the printing web 6.
  • the washcloth 20 can already be damp on the cleaning cloth roll 24.
  • the portion of the washcloth 20 wound on the cleaning cloth roll 24 is dry, and only the washcloth portion 32 is moistened with liquid, preferably water, by a moistening device 42, which is automatically next applied to the membrane 36 by the motor 26 moved and then to be contacted in this position with the web section 18.
  • the membrane 36 extends over the entire width of the washcloth 20 and thus also over the entire width of the printing web 6.
  • the moistening device 42 moistens the washcloth 20 over its entire width.
  • the moistening device 42 can be a tube 44 with a plurality of nozzles 46, through which a contact liquid, preferably water, is applied, eg sprayed, onto the washcloth section 32, which is next moved onto the membrane 36.
  • a wetting or impregnation of the washcloth 20 is also possible through an essentially pressure-free supply of liquid, for example via a slit opening, or according to the wick principle, self-sucking.
  • the arrangement according to FIG. 1 is made such that the web section 18 differs from one another up and down, and the washcloth section 32 moves from the bottom up.
  • the washcloth 20 is preferably only moved when it does not contact the printing web 6.
  • the printing web 6 On the printing web 6 there are particles deposited by gravity and, if the printing web 6 is electrostatically charged, also dirt particles retained by electrostatic attraction. For a better cleaning effect, and also to avoid subsequent subsequent contamination, the printing web 6 is electrically discharged. This discharge takes place via the contacted damp washcloth section 32 to an earth connection 48.
  • the earth connection 48 can e.g. be formed by an electrode extending transversely to the washcloth and touching the wet washcloth 20. Because of the moisture and due to dirt, the dirt side of the washcloth 20 is highly conductive. So that the electrode 48 does not wipe off the dirt, it can be arranged on the clean side of the washing cloth 20 according to FIG. 1.
  • the wash cloth 20 is an endless belt 20/2 which runs over rollers 51, 52, 53 and 54, of which the roller 51 is driven by a motor 56, for example.
  • the rollers 52 and 54 serve as positioning means in that they can be moved by an adjusting device 58 perpendicular to the web section 18 relative to it for contacting the washcloth section 32 with this web section 18.
  • the moistening device 42 is used to moisten the washcloth section 32.
  • a grounding connection 48 is again used to ground the washcloth section 32.
  • the endless washcloth 20/2 can circulate several times. It is expedient to clean the washing cloth 20/2 before each cycle using a cleaning device 60.
  • the cleaning device 60 can Suction nozzle 61 on the dirt side and / or a blow nozzle 63 on the clean side of the washcloth 20/2 and / or a rotating brush 62 which gives dirt particles brushed off from the washcloth 20/2 into a collecting container 64.
  • the embodiment shown in Fig. 2 contains a further variant in the form of a second positioning means or actuator 66, with which the roller 10 of the printing web 6 can be moved relative to the rollers 51 to 54 of the washcloth 20/2 around the web section 18 to contact or to decontact with the washcloth section 32 on the circumference of the roller 54.
  • the web section 18 of the printing web 6 is advanced or moved back by the second positioning means 66 in accordance with the double arrow 68 shown in FIG. 2.
  • the printing web 6 to be printed is shown as a solid line in its position, in which it contacts the washcloth 20 in the washcloth section 32, and also in dashed lines in the position at which they do not contact the washcloth 20. If below the washcloth section 32, which contacts the web 6, no machine parts are arranged or, for another reason, there is no danger that dirt particles falling off the washcloth section 32 can result in soiling of machine parts, then the web 6 can also correspond to an arrow 70 be moved up instead of down.
  • the second positioning means 66 from FIG. 2 can again be provided for contacting and decontacting.
  • the washcloth 20 has a very large finite length and runs from a clean cloth roll 24 to a dirty cloth roll 28.
  • the guide plate 72 can, however, also be used in connection with an endless wash cloth 20/2 from FIG. 2.
  • the baffle 72 can be provided with the ground connection 48.
  • the positioning means for positioning the washing cloth 20 or 20/2 relative to the printing web 6, or the printing web 6 relative to the washing cloth 20 or 20/2 can, in addition to the means mentioned, also be pneumatic cylinders, hydraulic cylinders, eccentrics and springs.
  • the web cleaning system 14 is preferably switched on and off at the same time and automatically when the printing unit 2 is switched on and off. Contacting and de-contacting the washcloth 20 or 20/2 with the printing web 6 likewise takes place automatically in specific time periods.
  • FIG. 4 shows an embodiment of a web cleaning system in which a wash cloth 20 (or 20/2) is arranged on each of the two web sides 16 and 116 of the web 6 to be printed.
  • a wash cloth 20 or 20/2
  • FIG. 4 parts corresponding to FIG. 1 are provided with the same reference numbers as in FIG. 1.
  • the printing web 6 is guided over the rollers 10 and 12 on one path.
  • the wrap angle over which the Printing web 6 wraps around or contacts the rollers 10 and 12 and the washcloth section 32 can be varied by positioning the rolls 10, 12 and / or the washcloth section 32.
  • the moisture content of the printing web 6 can be measured by sensors 80, 81 before cleaning and by sensors 82 and 83 after cleaning. Depending on the measured moisture content, the supply of dampening liquid to the printing web 6, e.g. via the moistening device 42, controlled or regulated.
  • An electrically highly conductive liquid is preferably used to moisten the printing web 6, e.g. Water or a liquid suitable for offset printing.
EP92110882A 1991-08-14 1992-06-26 Installation de nettoyage d'une bande pour nettoyer une bande destinée à être imprimée Expired - Lifetime EP0527316B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4126888A DE4126888A1 (de) 1991-08-14 1991-08-14 Bahnreinigungsanlage zur reinigung einer zu bedruckenden bahn
DE4126888 1991-08-14

Publications (2)

Publication Number Publication Date
EP0527316A1 true EP0527316A1 (fr) 1993-02-17
EP0527316B1 EP0527316B1 (fr) 1995-10-11

Family

ID=6438296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92110882A Expired - Lifetime EP0527316B1 (fr) 1991-08-14 1992-06-26 Installation de nettoyage d'une bande pour nettoyer une bande destinée à être imprimée

Country Status (5)

Country Link
US (1) US5289774A (fr)
EP (1) EP0527316B1 (fr)
JP (1) JPH0811441B2 (fr)
AT (1) ATE128904T1 (fr)
DE (2) DE4126888A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0672526A1 (fr) * 1994-03-18 1995-09-20 Comtec Co., Ltd. Installation de nettoyage du papier en surface
WO2014100847A1 (fr) * 2012-12-27 2014-07-03 Berndorf Band Gmbh Installation de nettoyage pour bande continue métallique et installation de coulée de bandes minces pourvue d'une telle installation de nettoyage
CN108856024A (zh) * 2012-12-21 2018-11-23 佛罗兰包装Ip控股有限公司 用于从膜移除油墨的方法和系统

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2540277B2 (ja) * 1993-05-17 1996-10-02 株式会社コムテック 印刷用紙の紙面拭き取り機
DE19903887A1 (de) * 1998-02-23 1999-08-26 Heidelberger Druckmasch Ag Verfahren und Bogenrotationsdruckmaschine zum Beidseitigen Bedrucken eines Bedruckstoffbogens
DE19920230A1 (de) * 1999-05-03 2000-11-09 Baldwin Grafotec Gmbh Reinigungsvorrichtung für die graphische Industrie
DE19929843A1 (de) * 1999-06-29 2001-01-04 Baldwin Grafotec Gmbh Oberflächen-Behandlungsvorrichtung
US6840174B2 (en) 2003-01-31 2005-01-11 R. R. Donnelley & Sons Company Debris screen for a printing press
JP4400812B2 (ja) 2003-04-22 2010-01-20 日本ボールドウィン株式会社 洗浄ファブリック用押圧構造体およびそれを用いた洗浄装置
DE202007018741U1 (de) 2007-12-08 2009-04-02 Hartmut Lehmann Metallbau Gmbh Vorrichtung zur Reinigung von Druckpapier
DE102009013327B4 (de) * 2008-04-21 2019-03-07 Heidelberger Druckmaschinen Ag Verfahren zum Betreiben einer Druckmaschine
US20100182389A1 (en) * 2009-01-16 2010-07-22 Kenneth Dobizl Media interface module and printer with a media wiper
KR101907484B1 (ko) * 2011-07-21 2018-12-05 미래나노텍(주) 터치 스크린 패널 제조 장치 및 제조 방법
WO2013169096A1 (fr) * 2012-05-09 2013-11-14 Bakker Hermanus Dispositif pour l'élimination de particules à partir d'une bande continue de matériau
CN103507405B (zh) * 2012-06-29 2017-02-01 上海宇智科技有限公司 一种擦拭装置
CN104475373A (zh) * 2014-11-28 2015-04-01 浙江鸿禧能源股份有限公司 一种丝网印刷及分检传送皮带擦洗方法
ES2930676T3 (es) 2015-05-01 2022-12-20 Boers Holding B V Un método de limpieza de una banda impresa de material flexible, así como también un aparato para la misma
NL2016719B1 (nl) 2016-05-02 2017-11-10 Boers Holding B V Werkwijze voor het reinigen van een bedrukte baan flexibel materiaal, alsmede een inrichting daarvoor.
DE102019117563A1 (de) * 2019-06-28 2020-12-31 Koenig & Bauer Ag Bahnbearbeitungsmaschine zur Bearbeitung einer Substratbahn
IT202100003830A1 (it) * 2021-02-19 2022-08-19 Giorgio Petratto Apparecchiatura per la pulitura di fogli di materiale cartaceo

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE483216C (de) * 1928-06-07 1929-09-26 Erich Schmidt Maschine zum Abwaschen von Papierbogen
DE685785C (de) * 1938-07-14 1939-12-23 Koenig & Bauer Schnellpressfab Vorrichtung zum Entelektrisieren laufender Papierbahnen in Rotationstiefdruckmaschinen mittels geerdeter Metallkaemme o. dgl.
GB1082910A (en) * 1965-12-14 1967-09-13 Lowe Paper Co Improvements relating to the removal of dirt particles from the surface of a paper web
GB2047167A (en) * 1979-04-19 1980-11-26 Baldwin Gegenheimer Corp Blanket cylinder cleaner
EP0299203A2 (fr) * 1987-07-15 1989-01-18 Baldwin-Gegenheimer GmbH Dispositif de nettoyage des machines d'impression
DE3740044A1 (de) * 1987-11-26 1989-06-08 Kotterer Grafotec Vorrichtung zum abnehmen von verunreinigungen von einem bedruckstoff

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DE50672C (de) * G. DUNCAN, 30 Fairfield Crescent, Liverpool, und i J. SALMON, Blackfriars Bridge, Manchester Apparat zur Bogenreinigung
US3245835A (en) * 1963-10-08 1966-04-12 Lowe Paper Co Electrostatic cleaning method and apparatus
DE1786277A1 (de) * 1968-09-10 1972-01-20 Hans Gruenenfelder Vorrichtung zum elektrostatischen Entladen von laufenden Materialbahnen und deren gleichzeitiger Entstaubung
DE2249740B2 (de) * 1972-10-11 1976-08-26 Basf Ag, 6700 Ludwigshafen Verfahren und vorrichtung zum kontinuierlichen reinigen von schnellaufenden folienbahnen
US4757763A (en) * 1979-04-19 1988-07-19 Baldwin Technology Corporation Automatic blanket cylinder cleaner
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US4643775A (en) * 1984-06-29 1987-02-17 Crown Zellerbach Corporation Fabric conditioning and cleaning system
EP0186620B1 (fr) * 1984-12-24 1992-04-15 Mitsubishi Jukogyo Kabushiki Kaisha Méthode de commande de l'épaisseur du film d'amalgame liquide de corps gras et d'eau dans les machines à imprimer
DD233527A1 (de) * 1984-12-29 1986-03-05 Polygraph Leipzig Einrichtung zur messung von schichtdicken in polygraphischen maschinen
JPS6438238A (en) * 1987-08-05 1989-02-08 Kita Denshi Kk Regulation of ink
JPH01136748A (ja) * 1987-11-25 1989-05-30 Mitsubishi Heavy Ind Ltd 印刷機の紙粉除去装置
JPH023308A (ja) * 1988-06-17 1990-01-08 Dainippon Printing Co Ltd 印刷機上の印刷用紙水分調節装置
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JPH0276740A (ja) * 1988-09-13 1990-03-16 Nikka Kk 印刷機のブランケット洗浄装置及び洗浄方法
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JPH02227177A (ja) * 1989-01-17 1990-09-10 Techno Roll Kk 基材表面清掃装置
DE3909119C2 (de) * 1989-03-20 1997-01-23 Heidelberger Druckmasch Ag Wascheinrichtung für eine Druckmaschine
JPH03116081A (ja) * 1989-09-29 1991-05-17 Shin Etsu Polymer Co Ltd 情報機器内部材のクリーニング方法およびこれに用いるクリーニングシート
JP2900272B2 (ja) * 1989-12-27 1999-06-02 大日本印刷株式会社 オフセット枚葉印刷機圧胴洗浄装置
JP3006653U (ja) * 1994-07-14 1995-01-31 久保商事株式会社 草履鼻緒

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE483216C (de) * 1928-06-07 1929-09-26 Erich Schmidt Maschine zum Abwaschen von Papierbogen
DE685785C (de) * 1938-07-14 1939-12-23 Koenig & Bauer Schnellpressfab Vorrichtung zum Entelektrisieren laufender Papierbahnen in Rotationstiefdruckmaschinen mittels geerdeter Metallkaemme o. dgl.
GB1082910A (en) * 1965-12-14 1967-09-13 Lowe Paper Co Improvements relating to the removal of dirt particles from the surface of a paper web
GB2047167A (en) * 1979-04-19 1980-11-26 Baldwin Gegenheimer Corp Blanket cylinder cleaner
EP0299203A2 (fr) * 1987-07-15 1989-01-18 Baldwin-Gegenheimer GmbH Dispositif de nettoyage des machines d'impression
DE3740044A1 (de) * 1987-11-26 1989-06-08 Kotterer Grafotec Vorrichtung zum abnehmen von verunreinigungen von einem bedruckstoff

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PATENT ABSTRACTS OF JAPAN vol. 014, no. 132 (M-948)13. März 1990 & JP-A-20 03 308 (DAINIPPON PRINTING CO LTD) 8. Januar 1990 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0672526A1 (fr) * 1994-03-18 1995-09-20 Comtec Co., Ltd. Installation de nettoyage du papier en surface
CN108856024A (zh) * 2012-12-21 2018-11-23 佛罗兰包装Ip控股有限公司 用于从膜移除油墨的方法和系统
CN108856024B (zh) * 2012-12-21 2022-01-11 佛罗兰包装Ip控股有限公司 用于从膜移除油墨的方法和系统
WO2014100847A1 (fr) * 2012-12-27 2014-07-03 Berndorf Band Gmbh Installation de nettoyage pour bande continue métallique et installation de coulée de bandes minces pourvue d'une telle installation de nettoyage

Also Published As

Publication number Publication date
DE59203970D1 (de) 1995-11-16
EP0527316B1 (fr) 1995-10-11
JPH0811441B2 (ja) 1996-02-07
ATE128904T1 (de) 1995-10-15
US5289774A (en) 1994-03-01
DE4126888A1 (de) 1993-02-18
JPH05193112A (ja) 1993-08-03

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