EP0770483A2 - Dispositif de nettoyage pour nettoyer des cylindres d'un appareil à imprimer offset - Google Patents

Dispositif de nettoyage pour nettoyer des cylindres d'un appareil à imprimer offset Download PDF

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Publication number
EP0770483A2
EP0770483A2 EP96116301A EP96116301A EP0770483A2 EP 0770483 A2 EP0770483 A2 EP 0770483A2 EP 96116301 A EP96116301 A EP 96116301A EP 96116301 A EP96116301 A EP 96116301A EP 0770483 A2 EP0770483 A2 EP 0770483A2
Authority
EP
European Patent Office
Prior art keywords
washing
cylinders
washing roller
cylinder
roller
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
EP96116301A
Other languages
German (de)
English (en)
Other versions
EP0770483B1 (fr
EP0770483A3 (fr
Inventor
Claus Simeth
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.)
Manroland AG
Original Assignee
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0770483A2 publication Critical patent/EP0770483A2/fr
Publication of EP0770483A3 publication Critical patent/EP0770483A3/fr
Application granted granted Critical
Publication of EP0770483B1 publication Critical patent/EP0770483B1/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
    • 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
    • B41P2235/22—Rollers

Definitions

  • the invention relates to a washing device for cleaning cylinders of an offset printing unit with a rotatably drivable washing roller and a device for moistening the washing roller with a washing liquid.
  • DE-OS 17 61 111 and 42 08 079 washing devices of the type mentioned for cleaning the cylinder covered with a rubber blanket are known. If necessary, these washing devices can be adjusted to the blanket cylinder, the washing roller being wetted with a washing liquid containing solvent and guided to the rotating blanket cylinder in opposite directions over the blanket.
  • DE-AS 15 61 008 it is known from DE-AS 15 61 008 to provide a washing device on each blanket cylinder.
  • a method is known with which the blanket cylinder and the impression cylinder can be washed simultaneously in a sheetfed offset printing press.
  • a washing device is placed on the blanket cylinder after the cylinders have been switched off to the operating position, the printing unit being operated without a paper feed.
  • the rubber cylinder is placed against the impression cylinder.
  • the impression cylinder is cleaned via the rubber cylinder, whereby a separate washing device for the automatic washing of the impression cylinder and the space to be provided for this can be saved.
  • this known method has the disadvantage that the washing process is comparatively time-consuming, since the rubber blanket only has to be washed for a few revolutions of the rubber cylinder before the rubber cylinder can be turned on the impression cylinder. Furthermore, the cleaning effect of the blanket cylinder is comparatively low, so that a longer duration of the washing process is also necessary for this reason.
  • the invention has for its object to provide a washing device of the type mentioned, which enables the simultaneous cleaning of two cylinders of an offset printing unit in a short time.
  • the object is achieved in that the washing roller of the washing device can be adjusted simultaneously to two adjacent cylinders of the printing unit.
  • two cylinders for example the blanket cylinder and the impression cylinder or the impression cylinder and a transfer cylinder, can be cleaned simultaneously and in direct contact with the washing roller. It has been shown that in the time required for washing a single cylinder in a conventional manner, with the device according to the invention two cylinders can be cleaned, whereby the required cleaning time depends on the heavily soiled cylinder. For the simultaneous cleaning of the second, less heavily soiled cylinder, no additional time is required.
  • the axis of rotation of the washing roller can be movable in the tangential plane of contact of the two cylinders. This ensures that both cylinders are positioned equally.
  • the peripheral speed of the washing roller is preferably dimensioned larger or smaller than the peripheral speed of the cylinders during the washing process, in order to ensure that the washing roller also executes a relative movement with respect to the synchronized cylinder.
  • the direction of rotation of the washing roller is advantageously chosen so that it is opposite to the more dirty cylinder, i.e. has the same direction of rotation as the more polluting cylinder.
  • the washing roller is arranged in an exchangeable cassette which has a moistening device, a scraper and a collecting channel for the soiled detergent.
  • the washing device can be easily installed and removed for maintenance purposes.
  • the washing device can, according to the invention, be provided with a control device by means of which the washing roller is lifted over the cylinder channels and the gripper rows of the cylinders assigned to it.
  • the drawing shows a section of an offset printing unit with a blanket cylinder 1, an impression cylinder 2, a feeding transfer cylinder 3 and a discharging transfer cylinder 4. While the blanket cylinder 1 can be cleaned by means of a separate washing device (not shown), the impression cylinder 2 and the transfer cylinder 4 are for cleaning a single washing device 5 is provided.
  • the washing device 5 consists of an elongated housing 6, in which a washing roller 7 is rotatably mounted.
  • the washing roller 7 can be driven in both directions of rotation by means of a drive motor, not shown.
  • the housing 6 contains a plurality of spray nozzles 8 which are arranged next to one another in the longitudinal direction of the housing and through which a suitable washing liquid can be sprayed onto the washing roller 7. Excess washing liquid and dirt picked up by the washing roller 7 are stripped off at a scraper 9 and discharged via a collecting trough 10 formed by the housing 6.
  • the washing device is shown in the washing position.
  • the washing roller rests equally on the impression cylinder 2 and the transfer cylinder 4, its axis of rotation being on the tangential contact plane 11 of the two cylinders.
  • the washing device 5 is mounted in a degree guide which enables the washing device 5 to move in the direction of the arrows P.
  • a control device not shown, is provided, by means of which the employed washing device 5 is lifted off the cylinders 2, 4 when the gripper channels 12, 13 and the gripper rows 14, 15 pass the washing roller 7.
  • the use of the washing device described is not limited to the example shown.
  • the washing device can, for example, also be arranged advantageously be that it can be adjusted simultaneously to the blanket cylinder and the impression cylinder, so that these two cylinders can be cleaned together.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP96116301A 1995-10-26 1996-10-11 Dispositif de nettoyage pour nettoyer des cylindres d'un appareil à imprimer offset Expired - Lifetime EP0770483B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29516976U DE29516976U1 (de) 1995-10-26 1995-10-26 Waschvorrichtung zur Reinigung von Zylindern eines Offsetdruckwerkes
DE29516976U 1995-10-26

Publications (3)

Publication Number Publication Date
EP0770483A2 true EP0770483A2 (fr) 1997-05-02
EP0770483A3 EP0770483A3 (fr) 1997-10-01
EP0770483B1 EP0770483B1 (fr) 1999-11-17

Family

ID=8014633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96116301A Expired - Lifetime EP0770483B1 (fr) 1995-10-26 1996-10-11 Dispositif de nettoyage pour nettoyer des cylindres d'un appareil à imprimer offset

Country Status (4)

Country Link
EP (1) EP0770483B1 (fr)
JP (1) JP2944943B2 (fr)
AT (1) ATE186678T1 (fr)
DE (2) DE29516976U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0909648A1 (fr) * 1997-07-30 1999-04-21 Oxy-Dry Maschinen GmbH Dispositif de nettoyage des cylindres d'une presse à imprimer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19607037C2 (de) * 1996-02-24 1999-03-25 Roland Man Druckmasch Verfahren zum Reinigen einer Druckmaschinenzylinderoberfläche mit einer Oberflächenstruktur
DE29802171U1 (de) * 1998-02-09 1998-03-19 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Vorrichtung zur Reinigung von zwei Zylindern in einer Druckmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1351365A (fr) * 1961-05-06 1964-02-07 Roto Service Dispositif de nettoyage et de lavage automatique pour machines offset
EP0004605A1 (fr) * 1978-04-10 1979-10-17 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour nettoyer des cylindres de machines à imprimer, en particulier des machines à imprimer offset
DE3120983A1 (de) * 1980-05-28 1982-04-29 Dai Nippon Insatsu K.K., Tokyo Vorrichtung zum waschen des gummituchzylinders einer rotations-offsetpresse
DE3736397A1 (de) * 1987-10-28 1989-05-11 Spiess Gmbh G Gummituchwaschvorrichtung
EP0334173A1 (fr) * 1988-03-23 1989-09-27 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour nettoyer les surfaces de travail d'une machine, en particulier d'une machine d'imprimerie
US5257578A (en) * 1993-01-12 1993-11-02 Heidelberger Druckmaschinen Ag Device for automatically cleaning blanket cylinders in a offset printing press
EP0754552A1 (fr) * 1995-07-20 1997-01-22 MAN Roland Druckmaschinen AG Procédé et dispositif de lavage d'un cylindre de plaque et d'un rouleau d'application dans une machine d'impression

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169668A (en) * 1967-04-20 1969-11-05 Akerlund & Rausing Ab Improvements in and relating to Means for Washing a Cylinder in a Printing Press
DE2531886C3 (de) * 1975-07-17 1978-04-13 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Verfahren und Vorrichtung zur Reinigung von Zylindern eines Offsetdruckwerkes
US4870900A (en) * 1986-02-07 1989-10-03 Air Stamping, Inc. Combined bearer wiper assembly and finger guard for printing apparatus
DE8816264U1 (de) * 1988-03-23 1989-03-30 MAN Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Reinigen der Arbeitsflächen einer Arbeitsmaschine, insbesondere in einer Druckmaschine
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
DE4208079C2 (de) * 1992-03-13 1996-07-25 Roland Man Druckmasch Vorrichtung zum Waschen eines Zylinders einer Druckmaschine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1351365A (fr) * 1961-05-06 1964-02-07 Roto Service Dispositif de nettoyage et de lavage automatique pour machines offset
EP0004605A1 (fr) * 1978-04-10 1979-10-17 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour nettoyer des cylindres de machines à imprimer, en particulier des machines à imprimer offset
DE3120983A1 (de) * 1980-05-28 1982-04-29 Dai Nippon Insatsu K.K., Tokyo Vorrichtung zum waschen des gummituchzylinders einer rotations-offsetpresse
DE3736397A1 (de) * 1987-10-28 1989-05-11 Spiess Gmbh G Gummituchwaschvorrichtung
EP0334173A1 (fr) * 1988-03-23 1989-09-27 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour nettoyer les surfaces de travail d'une machine, en particulier d'une machine d'imprimerie
US5257578A (en) * 1993-01-12 1993-11-02 Heidelberger Druckmaschinen Ag Device for automatically cleaning blanket cylinders in a offset printing press
EP0754552A1 (fr) * 1995-07-20 1997-01-22 MAN Roland Druckmaschinen AG Procédé et dispositif de lavage d'un cylindre de plaque et d'un rouleau d'application dans une machine d'impression

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0909648A1 (fr) * 1997-07-30 1999-04-21 Oxy-Dry Maschinen GmbH Dispositif de nettoyage des cylindres d'une presse à imprimer

Also Published As

Publication number Publication date
EP0770483B1 (fr) 1999-11-17
JP2944943B2 (ja) 1999-09-06
DE29516976U1 (de) 1995-12-21
EP0770483A3 (fr) 1997-10-01
DE59603670D1 (de) 1999-12-23
ATE186678T1 (de) 1999-12-15
JPH09131859A (ja) 1997-05-20

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