EP0790125A1 - Dispositif pour nettoyer la surface d'un cylindre dans une machine d'impression rotative - Google Patents

Dispositif pour nettoyer la surface d'un cylindre dans une machine d'impression rotative Download PDF

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Publication number
EP0790125A1
EP0790125A1 EP97101504A EP97101504A EP0790125A1 EP 0790125 A1 EP0790125 A1 EP 0790125A1 EP 97101504 A EP97101504 A EP 97101504A EP 97101504 A EP97101504 A EP 97101504A EP 0790125 A1 EP0790125 A1 EP 0790125A1
Authority
EP
European Patent Office
Prior art keywords
hollow body
cylinder
cleaning
pressure
way valve
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
EP97101504A
Other languages
German (de)
English (en)
Other versions
EP0790125B1 (fr
Inventor
André Geis
Thomas Kraft
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 EP0790125A1 publication Critical patent/EP0790125A1/fr
Application granted granted Critical
Publication of EP0790125B1 publication Critical patent/EP0790125B1/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

Definitions

  • the invention relates to a device for cleaning the lateral surfaces of cylinders in rotary printing presses, with a cleaning cloth extending over the length of the cylinder and with a pressing element cooperating therewith, the cleaning cloth being able to be pressed against the moving lateral surface by the pressing element and the pressing element out there is an elastically deformable hollow body which can be acted upon by an internal pressure and which expands elastically when the internal pressure is applied.
  • DE 30 05 469 C2 shows such a cleaning device, in which, however, after switching off the internal pressure, there is only a small distance between the cleaning cloth and the cylinder surface, so that, for. B. when cleaning the outer surface of a printing cylinder, the gripper fingers present here can cause damage to the cleaning cloth. This could prevent the outer surface of the cylinder to be cleaned from being clean, so that the cleaning device does not achieve an optimal effect.
  • the object is achieved in that the air supply to the hollow body is carried out via a two-way valve and that the two-way valve can be switched from positive pressure to negative pressure, so that the hollow body from an outwardly expanded position via a neutral Rest position is moved to an inwardly stretched position.
  • the cleaning device with the configuration according to the invention is assigned to a pressure cylinder, a negative pressure can be applied during the operation of the machine, so that the gripper fingers can pass without damaging the cleaning cloth.
  • the hollow body is in a neutral rest position, in which the cleaning cloth has no contact with the surface of the cylinder.
  • An advantageous embodiment of the invention is characterized in that the hollow body has an outwardly arched cross-section in the neutral rest position without exposure to air. If the hollow body is made of a rubber-like material, a simple solution to the problem can be achieved in this embodiment with relatively little overpressure or underpressure.
  • a pressing element 3 of a cleaning device is assigned to a cylinder 1 of a rotary printing machine for cleaning its outer surface 2. Via the pressing element 3, a cleaning cloth 4 can be pressed onto the lateral surface 2, with which the lateral surface 2 of the rotating cylinder 1 can be cleaned of dirt and paint residues.
  • the pressing element consists of an elastically deformable hollow body 5, e.g. B. from a rubber-like material which is received in a mounting rail 6.
  • a hose connection 7, which is connected to a two-way valve 8, is provided on the mounting rail 6 for air supply.
  • the two-way valve 8 is coupled to a compressed air generator 9 and a suction air generator 10, so that depending on the position of the two-way valve 8, the Air supply to the hollow body 5 can be switched from positive pressure to negative pressure.
  • the two-way valve 8 is drawn in a position in which the hollow body 5 is subjected to negative pressure.
  • the hollow body 5 is shown in dash-dotted lines and dotted in a neutral rest position.
  • the hollow body 5 presses the cleaning cloth 4 against the outer surface 2.
  • the inwardly expanded position of the hollow body 5 is shown in dashed lines when a negative pressure is applied.
  • a significantly increased distance 11 is achieved between the position of the cleaning cloth 4 on and off the lateral surface 2 of the cylinder 1. It can be clearly seen here that the hollow body 5 has an outwardly curved cross section without air being applied in the neutral rest position.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP97101504A 1996-02-17 1997-01-31 Dispositif pour nettoyer la surface d'un cylindre dans une machine d'impression rotative Expired - Lifetime EP0790125B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19605957 1996-02-17
DE19605957A DE19605957A1 (de) 1996-02-17 1996-02-17 Vorrichtung zum Reinigen der Mantelfläche von Zylindern in Rotationsdruckmaschinen

Publications (2)

Publication Number Publication Date
EP0790125A1 true EP0790125A1 (fr) 1997-08-20
EP0790125B1 EP0790125B1 (fr) 2000-04-19

Family

ID=7785704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101504A Expired - Lifetime EP0790125B1 (fr) 1996-02-17 1997-01-31 Dispositif pour nettoyer la surface d'un cylindre dans une machine d'impression rotative

Country Status (5)

Country Link
US (1) US5784962A (fr)
EP (1) EP0790125B1 (fr)
JP (1) JPH09220805A (fr)
CZ (1) CZ14997A3 (fr)
DE (2) DE19605957A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1050407A1 (fr) * 1999-05-03 2000-11-08 Baldwin Grafotec GmbH Dispositif de nettoyage pour l'industrie graphique
CN111417547A (zh) * 2017-11-30 2020-07-14 罗伯特·博世有限公司 用于清洁壳体表面的部分区域的设备和方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19920231A1 (de) * 1999-05-03 2000-11-09 Baldwin Grafotec Gmbh Reinigungsvorrichtung für die graphische Industrie
US6799514B2 (en) 2002-01-11 2004-10-05 The Procter & Gamble Company Cleaning apparatus for printing press
WO2003101740A1 (fr) * 2002-05-08 2003-12-11 Baldwin Graphic Systems, Inc. Vessie pourvue d'une region a contact constant pour nettoyer un cylindre porte-blanchet
CN100478793C (zh) * 2002-09-17 2009-04-15 兄弟工业株式会社 处理装置和影像形成设备
DE102006033398B4 (de) * 2006-07-19 2010-01-14 Technotrans Ag Waschvorrichtung für Druckmaschinen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005469A1 (de) * 1979-04-19 1980-10-30 Baldwin Gegenheimer Corp Waschvorrichtung eines drucktuchzylinders einer druckmaschine mit einem reinigungstuch
EP0119538A2 (fr) * 1983-03-17 1984-09-26 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Racle pour dispositif de nettoyage d'un cylindre

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757763A (en) * 1979-04-19 1988-07-19 Baldwin Technology Corporation Automatic blanket cylinder cleaner
DD227927A1 (de) * 1984-11-02 1985-10-02 Polygraph Leipzig Vorrichtung zur reinigung eines zylinders einer druckmaschine
JPS63286350A (ja) * 1987-05-19 1988-11-24 Nippon Baldwin Kk 印刷機のシリンダ洗滌装置
DE4008159A1 (de) * 1990-03-15 1991-09-19 Heidelberger Druckmasch Ag Reinigungseinrichtung fuer eine druckmaschine
DE4142422A1 (de) * 1991-12-20 1993-06-24 Baldwin Gegenheimer Gmbh Vorrichtung zum reinigen von zylindern einer rotationsdruckmaschine
DE4319258C2 (de) * 1993-06-09 2003-10-09 Heidelberger Druckmasch Ag Reinigungsvorrichtung für Druckmaschinen
DK83193A (da) * 1993-07-09 1995-01-10 Tresu A S Maskinfabriken Fremgangsmåde og apparat til rensning af overfladen på en valse
US5519914A (en) * 1995-08-01 1996-05-28 Egan; Ronald G. Contact type automatic roll cleaner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005469A1 (de) * 1979-04-19 1980-10-30 Baldwin Gegenheimer Corp Waschvorrichtung eines drucktuchzylinders einer druckmaschine mit einem reinigungstuch
DE3005469C2 (fr) 1979-04-19 1987-07-23 Baldwin Gegenheimer Corp., Stamford, Conn., Us
EP0119538A2 (fr) * 1983-03-17 1984-09-26 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Racle pour dispositif de nettoyage d'un cylindre

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1050407A1 (fr) * 1999-05-03 2000-11-08 Baldwin Grafotec GmbH Dispositif de nettoyage pour l'industrie graphique
US6386106B1 (en) 1999-05-03 2002-05-14 Baldwin Grafotec Gmbh Cleaning apparatus for the graphics industry
CN111417547A (zh) * 2017-11-30 2020-07-14 罗伯特·博世有限公司 用于清洁壳体表面的部分区域的设备和方法
US11697401B2 (en) 2017-11-30 2023-07-11 Robert Bosch Gmbh Device and method for cleaning a partial region of a housing surface
CN111417547B (zh) * 2017-11-30 2023-08-25 罗伯特·博世有限公司 用于清洁壳体表面的部分区域的设备和方法

Also Published As

Publication number Publication date
JPH09220805A (ja) 1997-08-26
DE59701458D1 (de) 2000-05-25
US5784962A (en) 1998-07-28
CZ14997A3 (en) 1997-09-17
EP0790125B1 (fr) 2000-04-19
DE19605957A1 (de) 1997-08-21

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