EP0351562A2 - Dispositif de nettoyage d'un cylindre de plaque et d'un cylindre de blanchet d'une machine à imprimer en offset - Google Patents

Dispositif de nettoyage d'un cylindre de plaque et d'un cylindre de blanchet d'une machine à imprimer en offset Download PDF

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Publication number
EP0351562A2
EP0351562A2 EP89111063A EP89111063A EP0351562A2 EP 0351562 A2 EP0351562 A2 EP 0351562A2 EP 89111063 A EP89111063 A EP 89111063A EP 89111063 A EP89111063 A EP 89111063A EP 0351562 A2 EP0351562 A2 EP 0351562A2
Authority
EP
European Patent Office
Prior art keywords
cleaning
cylinder
plate cylinder
buttons
blanket cylinder
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
EP89111063A
Other languages
German (de)
English (en)
Other versions
EP0351562A3 (en
EP0351562B1 (fr
Inventor
Willi Jeschke
Anton Rodi
Jürgen Reithofer
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0351562A2 publication Critical patent/EP0351562A2/fr
Publication of EP0351562A3 publication Critical patent/EP0351562A3/de
Application granted granted Critical
Publication of EP0351562B1 publication Critical patent/EP0351562B1/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
    • B41F35/06—Cleaning arrangements or devices for offset cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/02—Cleaning arrangements or devices for forme cylinders
    • 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
    • B41P2235/40—Cleaning restricted areas on cylinders

Definitions

  • the invention relates to a device for cleaning a plate cylinder and / or a blanket cylinder of an offset printing machine.
  • the printing plate is attached to a cylinder, the so-called plate cylinder.
  • the printing ink is applied to this plate cylinder by pressing the inking rollers.
  • the ink adhering to the plate cylinder is then transferred to another cylinder, the outer surface of which is provided with a rubber blanket.
  • the cylinder provided with the rubber blanket is the so-called rubber blanket cylinder.
  • the impression cylinder is opposite the blanket cylinder. It has the task of pressing the sheet of paper entering the printing unit to be printed with ink onto the blanket cylinder.
  • the ink is transported from the ink roller over the plate cylinder to the blanket cylinder.
  • a perfect print image requires, among other things, that during the above Ink transport optimal conditions with regard to the cleanliness of ink, plate cylinder and blanket cylinder prevail. In the case of dust, dirt or paint residues etc. on the plate cylinder and / or blanket cylinder, perfect transfer of the printing ink from the plate cylinder to the blanket cylinder or from the blanket cylinder to the printing sheet is not guaranteed.
  • DE-OS 34 10 376 discloses a device for cleaning the plate cylinder.
  • the device has a traverse running parallel to the plate cylinder, which is also the guide rail of the actual cleaning device.
  • the cleaning device is positioned opposite the contamination via the guide rail.
  • the cleaning device is moved to the plate cylinder up to the plate surface and the contamination present at this point is removed by the cleaning device.
  • the object of the present invention is to offer a device which ensures a quick and safe removal of impurities on the plate cylinder and / or the blanket cylinder by means of remote control during the printing operation.
  • the embodiment shown in Figure 1 has a plate cylinder 1, a blanket cylinder 2, a rotating magnet 3 and a cleaning element 4.
  • a rotary magnet 3, with which the cleaning element 4 is in a fixed connection, is arranged behind and at the level of the pressure gap 7.
  • the cleaning element 4 is provided with two ink squeegees 5, 6, one ink squeegee 5 being directed toward the blanket cylinder 2, and the ink squeegee 6 toward the plate cylinder 1.
  • FIG. 3 shows the plate cylinder 1 (or blanket cylinder 2).
  • the rotary magnet 3 is firmly connected to the cleaning element 4, so that the cleaning element 4 can follow the movements of the rotary magnet 3.
  • the rotary magnet receives its instruction regarding the desired operating position via the control lines 10, which are connected to a control or microcomputer system, not shown.
  • the keys 8, 9 shown in Figure 2b are arranged on a control panel and connected to a microcomputer system, not shown.
  • the button 9 is pressed.
  • the rotary magnet 3 is excited to rotate by the microcomputer system and the control lines 10.
  • the cleaning element 4 seen in FIG. 1 moves in the direction of the plate cylinder 1 due to the rotary magnet movement.
  • the side of the cleaning element 4 designed as a paint doctor 6 comes into contact with the plate surface. This will scrape off the contaminants on the surface.
  • the duration of the doctoring can be determined by providing a fixed time, or by designing the control so that the doctoring is carried out as long as the operator holds the activation button 8 or 9 depressed.
  • the rotary magnet 3 returns to its rest position, whereby the contact of the ink doctor 6 with the surface of the plate cylinder 1 is canceled.
  • An embodiment is also conceivable in which the cleaning time can be individually selected or used by means of a light pen.
  • the cleaning process takes place in an analogous order.
  • the button 8 is actuated, whereby the rotary magnet 3 is excited for a movement directed towards the blanket cylinder 2.
  • the cleaning element 4 comes into contact with the blanket cylinder 2 with its side designed as a doctor blade 5, as a result of which the contamination is scraped off.
  • the above description relates to a single cleaning element 4.
  • the embodiment according to the invention provides a plurality of such cleaning elements 4, which are arranged next to one another.
  • the number of such cleaning elements 4 can be determined as required. The greater the number of such cleaning elements, the smaller the effective range of the individual cleaning element 4, based on the length of the cylinder.
  • buttons with double functions or 64 buttons with single functions are also provided (Fig. 2b). For example, are found on the plate cylinder 1 in the areas of the cleaning zones 3 ', 5', 8 ', 11', 32 ', so the buttons 8, 9 assigned to the cleaning zones are actuated and simultaneous cleaning is carried out there.
  • cleaning can be carried out on the blanket cylinder 2 with the button 8.
  • Activation of the cleaning elements by means of the button 8 and the button 9 can also take place via other input devices; e.g. via a light pen 11, as provided in the CPC system from Heidelberger Druckmaschinen AG, Heidelberg.
  • the light pen 11 is connected to a color zone display 12 via a control panel (FIG. 2a).
  • the light pen 11 When contamination occurs, for example in the area of the cleaning zones 3 ', 5', 8 ', the light pen 11 is guided to the color zone display 12 and the color zones 3', 5 ', 8' are addressed.
  • the system is designed in such a way that it is in cleaning mode during cleaning, which means that no ink zone adjustment takes place. Rather, the cleaning elements are activated during the cleaning mode.
  • the effective range of the cleaning element corresponds to the above. Example that of the color zone.
  • An embodiment can also be provided in which only the plate cylinder or only the blanket cylinder can be cleaned. In such a case, the rotary magnet is only activated for one direction of movement.
  • a motor e.g. Gear motor to use.
  • buttons provided for zonal ink control to also be used for activating the cleaning elements.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP89111063A 1988-07-16 1989-06-19 Dispositif de nettoyage d'un cylindre de plaque et d'un cylindre de blanchet d'une machine à imprimer en offset Expired - Lifetime EP0351562B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3824236A DE3824236C1 (fr) 1988-07-16 1988-07-16
DE3824236 1988-07-16

Publications (3)

Publication Number Publication Date
EP0351562A2 true EP0351562A2 (fr) 1990-01-24
EP0351562A3 EP0351562A3 (en) 1990-12-05
EP0351562B1 EP0351562B1 (fr) 1993-09-15

Family

ID=6358875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111063A Expired - Lifetime EP0351562B1 (fr) 1988-07-16 1989-06-19 Dispositif de nettoyage d'un cylindre de plaque et d'un cylindre de blanchet d'une machine à imprimer en offset

Country Status (4)

Country Link
US (1) US5020433A (fr)
EP (1) EP0351562B1 (fr)
JP (1) JPH02141241A (fr)
DE (2) DE3824236C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545646A1 (fr) * 1991-12-03 1993-06-09 Comtec Co., Ltd. Dispositif de nettoyage pour machine à imprimer offset

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5138945A (en) * 1991-08-13 1992-08-18 Man Roland Druckmaschinen Ag System for removing foreign matter from a plate cylinder of a printing press
US5259313A (en) * 1991-12-20 1993-11-09 Heidelberg Harris Gmbh Method and apparatus for cleaning an inking mechanism and/or a printing mechanism in printing units of rotary printing machines
US5170712A (en) * 1992-03-03 1992-12-15 The John Henry Company Magnetic cleaner for printing press medium
US5323217A (en) * 1993-03-22 1994-06-21 Moore Business Forms, Inc. Ion deposition printer cleaning apparatus and related method
DE19524640A1 (de) * 1995-07-06 1997-01-09 Heidelberger Druckmasch Ag Wascheinrichtung für Zylinder einer Druckmaschine
WO1998041402A1 (fr) * 1997-03-18 1998-09-24 Machine Design Services, Inc. Systeme de nettoyage de cylindres porte-blanchets
US6691617B2 (en) 2001-03-27 2004-02-17 Heidelberger Druckmaschinen Ag Apparatus for selectively cleaning a printing press cylinder
US9346258B2 (en) * 2012-05-02 2016-05-24 Printing Research, Inc. Method for cleaning anti-marking jackets
CN103568557A (zh) * 2013-10-14 2014-02-12 安徽华印机电股份有限公司 一种胶印机上转印滚筒包复物的清洁装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2898855A (en) * 1955-04-20 1959-08-11 Dayton Rubber Company Roller train device
NL127485C (fr) * 1962-07-11
DE1960728U (de) * 1965-08-20 1967-05-24 Agfa Gevaert Ag Reinigungs- oder etscheinrichtung fuer buerooffsetdruckmaschinen.
JPS448727Y1 (fr) * 1966-10-06 1969-04-09
US3520410A (en) * 1968-04-04 1970-07-14 Johns Manville Filter cake removal device for rotary drum filter
DE1960728A1 (de) * 1968-12-10 1970-06-18 Groove Associates Ltd Verfahren zum Verbinden von zwei Stoffteilen durch eine Naht und Erzeugnis hergestellt nach dem Verfahren
US3785289A (en) * 1972-07-31 1974-01-15 Brown R Jr Copier-duplicator
CH596988A5 (fr) * 1976-09-17 1978-03-31 De La Rue Giori Sa
FR2441490A1 (fr) * 1978-11-16 1980-06-13 Salvat Editores Perfectionnements apportes aux moyens d'extraction d'elements etrangers aux plaques d'impression en offset
DE2850448A1 (de) * 1978-11-21 1980-05-29 Salvat Editores Vorrichtung zum beseitigen von fremdkoerpern von den platten von offset-druckmaschinen
JPS572759A (en) * 1980-06-10 1982-01-08 Isowa Ind Co Driving device for ink feeder in corrugated paper printer
US4499827A (en) * 1983-03-22 1985-02-19 Dai Nippon Insatsu Kabushiki Kaisha System for automatically removing dust from plate cylinders of printing press
JPS6133173A (ja) * 1984-07-25 1986-02-17 Torii Yakuhin Kk アミジン化合物
US4782756A (en) * 1986-04-28 1988-11-08 Howard Paul C Printing press roller ink remover
DE3713433A1 (de) * 1987-04-22 1988-11-03 Werner Grossmann Einrichtung zum entfernen von schmutzteilchen vom plattenzylinder einer offsetdruckmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545646A1 (fr) * 1991-12-03 1993-06-09 Comtec Co., Ltd. Dispositif de nettoyage pour machine à imprimer offset

Also Published As

Publication number Publication date
EP0351562A3 (en) 1990-12-05
US5020433A (en) 1991-06-04
DE58905598D1 (de) 1993-10-21
DE3824236C1 (fr) 1989-12-28
EP0351562B1 (fr) 1993-09-15
JPH02141241A (ja) 1990-05-30
JPH0451353B2 (fr) 1992-08-18

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