WO1999015335A1 - Method and apparatus for cleaning a rubber coated cylinder in an offset press - Google Patents

Method and apparatus for cleaning a rubber coated cylinder in an offset press Download PDF

Info

Publication number
WO1999015335A1
WO1999015335A1 PCT/SE1998/001705 SE9801705W WO9915335A1 WO 1999015335 A1 WO1999015335 A1 WO 1999015335A1 SE 9801705 W SE9801705 W SE 9801705W WO 9915335 A1 WO9915335 A1 WO 9915335A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
rubber coated
coated cylinder
contaminants
running
Prior art date
Application number
PCT/SE1998/001705
Other languages
French (fr)
Swedish (sv)
Inventor
Jan Persson
Original Assignee
Jan Persson
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 Jan Persson filed Critical Jan Persson
Priority to AT98945724T priority Critical patent/ATE209570T1/en
Priority to DE69802710T priority patent/DE69802710T2/en
Priority to EP98945724A priority patent/EP1024959B1/en
Priority to US09/509,296 priority patent/US6557470B1/en
Publication of WO1999015335A1 publication Critical patent/WO1999015335A1/en
Priority to NO20001518A priority patent/NO20001518L/en

Links

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
    • 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
    • B41P2235/23—Brushes
    • 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
    • B41P2235/26—Spraying devices

Definitions

  • the invention relates to method and apparatus for cleaning a rubber coated cylinder mounted in an offset printing machine for transferring the print from a printing plate cylinder to a paper web running in contact with the rubber coated cylinder while the offset printing machine is running .
  • the rubber coated cylinder will be contaminated by ink residues, paper dust, and paper fibers being deposited on and adhering to said cylinder, and as a consequence thereof it is necessary to clean the surface of the cylinder at regular intervals in order to maintain the quality of the print.
  • the cleaning is effected by using a washing liquid (detergent, solvent, water, or a mixture thereof) and can be effected manually when the offset printing machine is not running, which, of course, means production loss .
  • a rotating brush contacting the rubber coated cylinder is used, the rotational axis of said brush being parallel with the rotational axis of the cylinder.
  • the brush is moistened with washing liquid.
  • the cylinder then is wiped off by means of a cloth impregnated with washing liquid.
  • the system is complicated with respect to construction as well as function.
  • the object of the invention is to provide an effec- tive cleaning of the rubber coated cylinder while the offset printing machine is running, a reduced amount of washing liquid due to the fact that the contaminants are not washed off the cylinder but are brushed loose under gentle mechanical treatment of the rubber coating in order to loosen also firmly adhering contaminants, the washing liquid and the contaminants then being removed by means of the running paper web.
  • the invention also relates to an apparatus for working the method according to claim 2.
  • the cleaning will be particularly effective if the brush comprises two sections located one behind the other in respect of the rotational direction of the cylinder, the first section loosening contaminants and the other section scraping loose such material as has not been removed in the first step, and distributing the contaminants over the surface of the cylinder.
  • FIG. 1 is a perspective view of the apparatus according to the invention
  • FIG. 2 is an enlarged front view of the nozzle ramp and the brush included in the apparatus
  • FIG. 3 is an end view of the nozzle ramp and the brush.
  • a cylinder 10 which is coated with rubber cloth or is rubber coated in another way forms part of an offset printing machine and the purpose thereof is to transfer the print from the a printing plate cylinder 11 contacting the cylinder 10, to a paper web 12 which is advanced between the cylinder 10 and a back pressure cylinder 13.
  • a ramp 14 is mounted above the cylinder 10 in parallel therewith comprising as a metal sheet housing on which a number of spray nozzles 15 for washing liquid are provided the washing liquid being sprayed towards the surface of the cylinder 10 by means of the nozzles over the total length of the cylinder.
  • a brush 16 is mounted which comprises two sections 16A and 16B extending in parallel along the cylinder 10. The brush is guided in the metal sheet housing for reciprocating movement in the longitudinal direction of the cylinder and in order to provide this movement the brush is connected to a pneumatic ram 17.
  • the stroke of the brush is short and can be e.g.
  • the ramp 14 in its entirety can be raised and lowered in the frame of the offset printing machine in a man- ner not shown herein so that the brush 16 in a raised position is spaced from the cylinder 10, which is the position of the ramp during normal operation of the offset printing machine, and in a lowered position is in contact with the cylinder 10.
  • web contaminants such as ink residues, paper dust and paper fibers have collected on the surface of the rubber coated cylinder the print on the paper web 12 consequently being deteriorated. Then, it is necessary to clean the cylinder and remove said contaminants therefrom.
  • the printing plate cylinder 11 is brought out of contact with the cylinder 10, and the ramp 14 which is raised during normal operation of the offset printing machine is then lowered such that the brush 16 will contact the surface of the cylinder 10 as shown in the drawing. This takes place without the necessity of stopping the offset printing machine. Washing liquid is sprayed onto the rotating cylinder 10 over the total axial length thereof from the nozzles 15 downstream of the brush 16 in respect of the rotational direction of the cylinder 10, which is indicated by an arrow 18 in FIG 3. The brush is brought into reciprocating movement in the longitudinal direction of the cylinder 10 by means of the pneumatic ram 17.
  • Contaminants on the cylinder 10 are loosened from the surface of the cylinder by means of the brush section 16A in order then to be distributed over the surface of the cylinder by means of the brush section 16B which also scrapes loose contaminants which the brush section 16A has not been able to loosen.
  • the washing liquid which comprises a suitable solvent for the ink residues dissolves the contaminants on the cylinder 10 the washing liquid and the dissolved contaminants being retained on the cylinder 10 due to the fact that the cylinder is charged with static electricity.
  • the ramp 14 is lifted from the cylinder 10 when the cleaning has been finished, and spraying with washing liquid is shut off as well as the reciprocating movement of the brush 16.
  • the printing plate cylinder 11 is engaged with the cylinder 10 in order to continue the printing operation in the offset printing machine which has been kept running continuously during the total cleaning procedure which can take place without manual attendance.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Cleaning In General (AREA)

Abstract

Method and apparatus for cleaning a rubber coated cylinder (10) mounted in an offset printing machine for transferring the print from a printing plate cylinder (11) to a paper web (12) running in contact with the rubber coated cylinder, while the offset printing machine is running. The surface of the rubber coated cylinder is brushed by means of a brush (16) which extends in parallel with the cylinder and has substantially the length thereof and which is engaged with the rubber coating and imparted an axially reciprocating movement for loosening the contaminants and distribution thereof over the surface of the cylinder. Washing liquid is sprayed onto the surface of the rubber coated cylinder from a ramp (14) mounted in parallel with the cylinder and having a number of spray nozzles distributed along the ramp for dissolving the contaminants. Washing liquid and contaminants are removed from the surface of the cylinder by means of the paper web running through the offset printing machine.

Description

Title of the Invention: Method and apparatus for cleaning a rubber coated cylinder in an offset press
The invention relates to method and apparatus for cleaning a rubber coated cylinder mounted in an offset printing machine for transferring the print from a printing plate cylinder to a paper web running in contact with the rubber coated cylinder while the offset printing machine is running . During printing the rubber coated cylinder will be contaminated by ink residues, paper dust, and paper fibers being deposited on and adhering to said cylinder, and as a consequence thereof it is necessary to clean the surface of the cylinder at regular intervals in order to maintain the quality of the print. The cleaning is effected by using a washing liquid (detergent, solvent, water, or a mixture thereof) and can be effected manually when the offset printing machine is not running, which, of course, means production loss . This can be avoided by manual cleaning while the offset printing machine is running, which also is practised but is dangerous due to the high rotational speed of the cylinder. Therefore, automatic systems have been proposed which at intervals clean the rubber coated cylinder while the offset printing machine is running. One method is to spray the cylinder with washing liquid in order to dissolve and wash off the contaminants, which means that large amounts of inflammable washing liquid that is not at all pro-environmental has to be handled in order to completely clean the cylinder, which is not satisfactory. Such a prior art cleaning system is disclosed in US-A-5 303 652 and comprises a ramp mounted in parallel with the cylinder and having a number of spray nozzles dis- tributed along the ramp for sprinkling the surface of the rubber coated cylinder with cleaning liquid under the rotation of the cylinder.
According to another prior art method, DE-A1 43 30 257, a rotating brush contacting the rubber coated cylinder is used, the rotational axis of said brush being parallel with the rotational axis of the cylinder. The brush is moistened with washing liquid. In order to avoid too hard wear of the rubber coating an effective cleaning of the cylinder at the same time being achieved, the cylinder then is wiped off by means of a cloth impregnated with washing liquid. The system is complicated with respect to construction as well as function.
The object of the invention is to provide an effec- tive cleaning of the rubber coated cylinder while the offset printing machine is running, a reduced amount of washing liquid due to the fact that the contaminants are not washed off the cylinder but are brushed loose under gentle mechanical treatment of the rubber coating in order to loosen also firmly adhering contaminants, the washing liquid and the contaminants then being removed by means of the running paper web.
According to the invention said object is achieved by the method according to claim 1. The invention also relates to an apparatus for working the method according to claim 2.
While the offset printing machine is running and the rubber coated cylinder thus is rotating with the paper web running over the cylinder the contaminants on the cylinder are loosened and distributed by means of the reciprocating brush and are dissolved by means of the sprinkled washing liquid the contaminants together with the washing liquid being carried along by the rotating cylinder and removed in known manner from the offset printing machine by means of the paper web passing through the machine and bringing along washing liquid and contaminants from the cylinder at contact therewith.
The cleaning will be particularly effective if the brush comprises two sections located one behind the other in respect of the rotational direction of the cylinder, the first section loosening contaminants and the other section scraping loose such material as has not been removed in the first step, and distributing the contaminants over the surface of the cylinder. In order to explain the invention in more detail an embodiment thereof will be described with reference to the accompanying drawing in which
FIG. 1 is a perspective view of the apparatus according to the invention, FIG. 2 is an enlarged front view of the nozzle ramp and the brush included in the apparatus, and FIG. 3 is an end view of the nozzle ramp and the brush.
A cylinder 10 which is coated with rubber cloth or is rubber coated in another way forms part of an offset printing machine and the purpose thereof is to transfer the print from the a printing plate cylinder 11 contacting the cylinder 10, to a paper web 12 which is advanced between the cylinder 10 and a back pressure cylinder 13. A ramp 14 is mounted above the cylinder 10 in parallel therewith comprising as a metal sheet housing on which a number of spray nozzles 15 for washing liquid are provided the washing liquid being sprayed towards the surface of the cylinder 10 by means of the nozzles over the total length of the cylinder. Inside the metal sheet housing a brush 16 is mounted which comprises two sections 16A and 16B extending in parallel along the cylinder 10. The brush is guided in the metal sheet housing for reciprocating movement in the longitudinal direction of the cylinder and in order to provide this movement the brush is connected to a pneumatic ram 17. The stroke of the brush is short and can be e.g.
30 mm. The ramp 14 in its entirety can be raised and lowered in the frame of the offset printing machine in a man- ner not shown herein so that the brush 16 in a raised position is spaced from the cylinder 10, which is the position of the ramp during normal operation of the offset printing machine, and in a lowered position is in contact with the cylinder 10. When the offset printing machine has been running over a certain period for printing, web contaminants such as ink residues, paper dust and paper fibers have collected on the surface of the rubber coated cylinder the print on the paper web 12 consequently being deteriorated. Then, it is necessary to clean the cylinder and remove said contaminants therefrom. The printing plate cylinder 11 is brought out of contact with the cylinder 10, and the ramp 14 which is raised during normal operation of the offset printing machine is then lowered such that the brush 16 will contact the surface of the cylinder 10 as shown in the drawing. This takes place without the necessity of stopping the offset printing machine. Washing liquid is sprayed onto the rotating cylinder 10 over the total axial length thereof from the nozzles 15 downstream of the brush 16 in respect of the rotational direction of the cylinder 10, which is indicated by an arrow 18 in FIG 3. The brush is brought into reciprocating movement in the longitudinal direction of the cylinder 10 by means of the pneumatic ram 17. Contaminants on the cylinder 10 are loosened from the surface of the cylinder by means of the brush section 16A in order then to be distributed over the surface of the cylinder by means of the brush section 16B which also scrapes loose contaminants which the brush section 16A has not been able to loosen. The washing liquid which comprises a suitable solvent for the ink residues dissolves the contaminants on the cylinder 10 the washing liquid and the dissolved contaminants being retained on the cylinder 10 due to the fact that the cylinder is charged with static electricity. By the rotation of the cylinder 10 being brought into contact with the paper web 12 and adhere to the web due to the existence of a more powerful charge of static electricity on the paper web. Rubbing between the rubber coating on the cylinder 10 and the paper web 12 and between the cylinder 10 and the printing plate cylinder 11 running in contact with cylinder 10 generates static electricity in the cylinder 10. The charging of the paper web 12 with static electricity is caused by friction in the paper roll from which the paper web 12 is withdrawn and also by rubbing against existing cylinders (not shown) over which the paper web is passing before arriving at the nip between the cylinders 10 and 13. By contact with the cylinder 10 the paper web attracts washing liquid and dissolved contaminants existing on the surface of the cylinder 10. Liquid and contaminants are removed by the paper web which, of course, forms wastepaper as long as the cleaning is going on. The ramp 14 is lifted from the cylinder 10 when the cleaning has been finished, and spraying with washing liquid is shut off as well as the reciprocating movement of the brush 16. The printing plate cylinder 11 is engaged with the cylinder 10 in order to continue the printing operation in the offset printing machine which has been kept running continuously during the total cleaning procedure which can take place without manual attendance.

Claims

1. Method for cleaning a rubber coated cylinder (10) mounted in an offset printing machine for transferring the print from a printing plate cylinder (11) to a running paper web (12) running in contact with the rubber coated cylinder (10) , while the offset printing machine is running, characterized by the steps of brushing the surface of the rubber coated cylinder (10) by an axially reciprocating movement in order to loosen the contaminants and distributing them over the surface of the rubber coated cylinder (10) , to sprinkle the surface of the rubber coated cylinder (10) with washing liquid to dissolve the contaminants, and to remove washing liquid and contaminants from the surface of the rubber coated cylinder (10) by means of the paper web (12) running through the offset printing machine.
2. Apparatus for cleaning a rubber coated cylinder (10) mounted in an offset printing machine for transferring the print from a printing plate cylinder (11) to a paper web (12) contacting the rubber coated cylinder (10) , comprising a ramp (14) mounted in parallel with the rubber coated cylinder (10) and having a number of spray nozzles (15) distributed along the ramp for spraying the surface of the rubber coated cylinder (10) with cleaning liquid during the rotation of said cylinder, c h a r a c t e r i z e d by a brush (16) which extends in parallel with the rubber coated cylinder (10) and has substantially the length thereof and which can be engaged with the surface of the rubber coated cylinder (10) and, when thus engaged, can be reciprocated in the axial direction of said cylinder.
3. Apparatus according to claim 2, c h a r a c t e r i z e d in that the brush (16) comprises two sections (16A, 16B) located one behind the other in the rotational direction of the rubber coated cylinder (10) .
4. Apparatus according to claim 2 or 3 , c h a r a c t e r i z e d in that the stroke of the brush (16) is of the order of 30 mm.
5. Apparatus according to any of claims 2 to 4, c h a r a c t e r i z e d in that the ramp (14) comprises a metal sheet housing having spray nozzles (15) provided on the outside thereof and the brush (16) located inside the housing.
PCT/SE1998/001705 1997-09-24 1998-09-23 Method and apparatus for cleaning a rubber coated cylinder in an offset press WO1999015335A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT98945724T ATE209570T1 (en) 1997-09-24 1998-09-23 APPARATUS AND METHOD FOR CLEANING A RUBBER-COATED CYLINDER IN A PRINTING MACHINE
DE69802710T DE69802710T2 (en) 1997-09-24 1998-09-23 DEVICE AND METHOD FOR CLEANING A RUBBER-COVERED CYLINDER IN A PRINTING MACHINE
EP98945724A EP1024959B1 (en) 1997-09-24 1998-09-23 Method and apparatus for cleaning a rubber coated cylinder in an offset press
US09/509,296 US6557470B1 (en) 1997-09-24 1998-09-23 Method and apparatus for cleaning a rubber coated cylinder in an offset press
NO20001518A NO20001518L (en) 1997-09-24 2000-03-23 Apparatus and method for cleaning a rubber-coated cylinder in an offset press

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9703440-9 1997-09-24
SE9703440A SE510460C2 (en) 1997-09-24 1997-09-24 Method and apparatus for cleaning a rubber-coated cylinder in an offset press

Publications (1)

Publication Number Publication Date
WO1999015335A1 true WO1999015335A1 (en) 1999-04-01

Family

ID=20408351

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/001705 WO1999015335A1 (en) 1997-09-24 1998-09-23 Method and apparatus for cleaning a rubber coated cylinder in an offset press

Country Status (8)

Country Link
US (1) US6557470B1 (en)
EP (1) EP1024959B1 (en)
AT (1) ATE209570T1 (en)
DE (1) DE69802710T2 (en)
ES (1) ES2169553T3 (en)
NO (1) NO20001518L (en)
SE (1) SE510460C2 (en)
WO (1) WO1999015335A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20090089A1 (en) * 2009-02-19 2010-08-20 Finelettra Internat S A PROCEDURE AND APPARATUS FOR ELECTROSTATIC CONDITIONING, FOR THE CLEANING OF THE CYLINDERS IN THE STITCH OF THE OFFSET TYPE PRINTING MACHINES.

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE526314C2 (en) * 2004-05-07 2005-08-23 Baldwin Jimek Ab Brush arrangement for cleaning a tablecloth on a rotatable tablecloth
SE0401185L (en) * 2004-05-07 2005-11-08 Baldwin Jimek Ab A system for cleaning a cloth cylinder and a method for cleaning a cloth cylinder
DE102004048619A1 (en) * 2004-10-06 2006-04-13 Sms Demag Ag Method and device for cleaning rollers
US8347682B2 (en) * 2004-10-06 2013-01-08 Sms Siemag Aktiengesellschaft Apparatus for cleaning cylinders or rolls
DE502005003481D1 (en) * 2005-08-10 2008-05-08 Baldwin Oxy Dry Gmbh Cleaning device with spray nozzle made of soft elastic material
US8281717B2 (en) * 2007-07-25 2012-10-09 Air Motion Systems, Inc. Printing cylinder cleaning system
DE102010037401A1 (en) * 2010-09-08 2012-03-08 Ctp Gmbh application unit
CN103738054B (en) * 2013-12-20 2016-08-17 深圳劲嘉集团股份有限公司 A kind of automatic plate cleaning device of intaglio press and implementation method
JP6535568B2 (en) * 2015-10-13 2019-06-26 株式会社朝日プリンテック Rubber roller reclamation device
JP6535567B2 (en) * 2015-10-13 2019-06-26 株式会社朝日プリンテック How to regenerate rubber roller
CN110103587B (en) * 2019-06-01 2022-03-25 永联印刷耗材（深圳）有限公司 Cleaning equipment for flexographic printing anilox roller
CN113085371B (en) * 2021-04-25 2023-02-07 广东新宏泽包装股份有限公司 Cleaning device for coating of transfer printing roller of offset press

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159115A1 (en) * 1970-12-10 1972-06-22
SE417298B (en) * 1974-06-11 1981-03-09 Dainippon Printing Co Ltd DEVICE FOR CLEANING A DUCT CYLINDER IN A OFFSET PRESSURE
US4393778A (en) * 1980-05-28 1983-07-19 Dai Nippon Insatsu Kabushiki Kaisha Device for washing blanket cylinder of rotary offset press
DK170148B1 (en) * 1988-02-08 1995-06-06 Baldwin Graphic Products Vacuum cleaning system for removing dust, lint or color from a printing press cylinder in an offset printing press
DE19520551A1 (en) * 1995-06-06 1996-12-12 Roland Man Druckmasch Method and device for cleaning a cylinder of a rotary printing press

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH596988A5 (en) * 1976-09-17 1978-03-31 De La Rue Giori Sa
DE3800570A1 (en) * 1988-01-12 1989-07-20 Heidelberger Druckmasch Ag PRINTING UNIT FOR ROTATIONAL PRINTING MACHINES
US4875412A (en) * 1988-05-20 1989-10-24 Wright Norman D Printing press blanket cleaner
US5265537A (en) * 1988-11-17 1993-11-30 Baldwin Technology Corporation Printing press blanket cleaner
JPH0764053B2 (en) * 1988-12-06 1995-07-12 株式会社東京機械製作所 Method and device for automatically cleaning liquid supply roller of rotary press
US5038680A (en) * 1989-12-18 1991-08-13 Rockwell International Corporation Printing press blanket cylinder assembly and method of making same
JPH03288756A (en) * 1990-04-02 1991-12-18 Tokyo Kikai Seisakusho Ltd Drag roller device
US5213044A (en) * 1990-11-30 1993-05-25 Como Technologies, Incorporated Method and apparatus for use in printing
US5303652A (en) 1992-02-13 1994-04-19 Baldwin Technology Corporation Spray blanket cleaning system
DE4330257A1 (en) 1993-09-07 1995-03-09 Baldwin Gegenheimer Gmbh Cleaning device for printing machines
US5575211A (en) * 1994-10-28 1996-11-19 Hycorr Machine Corporation Washing Arrangement for rotary printer
DE19708435C2 (en) * 1997-03-01 2001-05-10 Heidelberger Druckmasch Ag Process for cleaning an inking unit of a printing press

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159115A1 (en) * 1970-12-10 1972-06-22
SE417298B (en) * 1974-06-11 1981-03-09 Dainippon Printing Co Ltd DEVICE FOR CLEANING A DUCT CYLINDER IN A OFFSET PRESSURE
US4393778A (en) * 1980-05-28 1983-07-19 Dai Nippon Insatsu Kabushiki Kaisha Device for washing blanket cylinder of rotary offset press
DK170148B1 (en) * 1988-02-08 1995-06-06 Baldwin Graphic Products Vacuum cleaning system for removing dust, lint or color from a printing press cylinder in an offset printing press
DE19520551A1 (en) * 1995-06-06 1996-12-12 Roland Man Druckmasch Method and device for cleaning a cylinder of a rotary printing press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20090089A1 (en) * 2009-02-19 2010-08-20 Finelettra Internat S A PROCEDURE AND APPARATUS FOR ELECTROSTATIC CONDITIONING, FOR THE CLEANING OF THE CYLINDERS IN THE STITCH OF THE OFFSET TYPE PRINTING MACHINES.

Also Published As

Publication number Publication date
NO20001518L (en) 2000-05-23
SE9703440L (en) 1999-03-25
SE510460C2 (en) 1999-05-25
EP1024959A1 (en) 2000-08-09
EP1024959B1 (en) 2001-11-28
SE9703440D0 (en) 1997-09-24
ES2169553T3 (en) 2002-07-01
DE69802710D1 (en) 2002-01-10
NO20001518D0 (en) 2000-03-23
ATE209570T1 (en) 2001-12-15
DE69802710T2 (en) 2002-08-01
US6557470B1 (en) 2003-05-06

Similar Documents

Publication Publication Date Title
EP1024959B1 (en) Method and apparatus for cleaning a rubber coated cylinder in an offset press
JP3469303B2 (en) Wiping device for intaglio printing press
CN1259190C (en) Method and apparatus for automatically cleaning both blanket cylinder and ink rollers of printing press
US20030167948A1 (en) Method and apparatus for steam cleaning anilox inking rollers
EP0918642B1 (en) Method and apparatus for cleaning flexographic printing plates
US5331891A (en) Printing cylinder/roller cleaning apparatus for printing press and method of cleaning printing cylinder/roller
DE102005024502B4 (en) Printing machine, in particular sheet-fed printing machine
US5753048A (en) Method and apparatus for cleaning a cylinder of a rotary printing machine
JP2001315313A (en) Method and apparatus for cleaning blanket cylinder
JPH0425337Y2 (en)
US5911175A (en) Method and device for cleaning a printing machine cylinder surface
US20030209158A1 (en) Continuous conditioning system and method of using same
JPS63188050A (en) Device for removing paper powder on blanket cylinder of printing press
JPH06297697A (en) Cleaning device for outer peripheral surface of cylindrical body
JPH08132598A (en) Blanket cylinder and impression cylinder commonly cleaning apparatus
JP4957958B2 (en) Blanket cylinder dust remover
JP2796957B2 (en) Blanket cleaning equipment for offset printing press
FI101059B (en) Procedure for cleaning the center cylinder of a printing machine
JP2572211Y2 (en) Cleaning device for printing cylinders and rollers of printing press
JPS63134245A (en) Cleaning device for blanket cylinder for press
US5619925A (en) Cleaning device for cylinders of a printing press
JPH0444905B2 (en)
WO2003095220A1 (en) Continuous conditioning system for cleaning a printing press and method of using same
JPH0574842U (en) Printing cylinder / roller cleaning device for printing machines
JP2010082834A (en) Cylinder washing means

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): NO US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 1998945724

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 09509296

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 1998945724

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1998945724

Country of ref document: EP