EP0816077A1 - Reinigungsverfahren und -einrichtung für Bahnführungsrollen - Google Patents

Reinigungsverfahren und -einrichtung für Bahnführungsrollen Download PDF

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Publication number
EP0816077A1
EP0816077A1 EP97110918A EP97110918A EP0816077A1 EP 0816077 A1 EP0816077 A1 EP 0816077A1 EP 97110918 A EP97110918 A EP 97110918A EP 97110918 A EP97110918 A EP 97110918A EP 0816077 A1 EP0816077 A1 EP 0816077A1
Authority
EP
European Patent Office
Prior art keywords
web
guide roller
adhesive
guide
roller cleaning
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.)
Withdrawn
Application number
EP97110918A
Other languages
English (en)
French (fr)
Inventor
Akira Hara
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 Japan Ltd
Original Assignee
Baldwin Japan Ltd
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 Japan Ltd filed Critical Baldwin Japan Ltd
Publication of EP0816077A1 publication Critical patent/EP0816077A1/de
Withdrawn legal-status Critical Current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

Definitions

  • the present invention relates to a cleaning system for a web guide roller (hereinafter referred to as "guide roller") which is used for a web fed press, a paper converting machine, a textile printing machine, etc., and particularly to guide roller cleaning method and apparatus which is suitably used to clean stain such as ink and other contaminants which adheres to the surfaces of many guide rollers.
  • guide roller a web guide roller
  • stain such as ink and other contaminants which adheres to the surfaces of many guide rollers.
  • a paper web 3 which is fed from a web roll 2 of a sheet supply stand 1 is guided through many guide rollers 4 to a impression cylinder 6 of a print portion 5.
  • Printing ink which is fed from a plate cylinder 8 to a blanket cylinder 7 while pressed against the impression cylinder 6 by the blanket cylinder 7 is transferred onto the web 3.
  • the printed web is guided to the many guide rollers, and pulled by a drag roller 9 and folded by a folding machine 10. Thereafter, the web is fed to the other processes by a delivery conveyor (not shown).
  • the guide rollers are more and more stained with printing ink and dust as the printing operation progresses.
  • the stain on the guide rollers are transferred onto the surface of a print sheet, and thus the quality of products is reduced. Therefore, in the case of the web fed press for newspaper, the printing work must be interrupted to clean the stain of the guide rollers. In the cleaning work, each guide roller is manually cleaned with waste absorbed with cleaning oil or the like.
  • an automatic cleaning apparatus for guide rollers has been proposed.
  • the rotation of a guide roller is controlled by a rotational speed control device to make a difference between the rotational circumferential speed of the guide roller and the travel speed of the web, and the slip between the web and the guide roller due to the difference in speed enables the surface of the guide roller to be cleaned by the web.
  • first liquid is coated on a part of the surface of a web to solve and/or soften an stain layer adhering onto the surface of a guide roller, and then second liquid having an adsorption transition property to the stain layer solved and/or softened by the first liquid is coated on the residual surface of the web (excluding the first-liquid coated surface). Thereafter, the first liquid coated surface is brought into contact with the surface of the guide roller to solve and/or soften the stain layer on the guide roller, and then the solved and/or softened stain layer is reacted with the second liquid on the second liquid coated surface to absorb and transit the stain layer to the web, thereby cleaning the guide roller.
  • guide rollers may be disposed at such a place that an operator cannot reach the guide rollers or at a place which is too narrow to perform the cleaning work, so that there are problems in operability and safety.
  • the conventional guide roller automatically cleaning apparatus needs a roller driving mechanism and a brake mechanism to make a difference in speed between the paper and the guide rollers, and also it is necessary to correct variation of the tension of the paper because paper cutting is liable to occur due to unbalance of the tension of the paper, so that the construction and the operability of the apparatus become complicated.
  • the supply operation of solvent must be controlled in accordance with the variation of the rotational speed of the guide rollers to the motion of the web, and thus a control device containing a control program for the solvent supply operation is needed.
  • An object of the present invention is to provide guide roller cleaning method and apparatus which can automatically clean guide rollers with high operability and at low cost while making a relative speed difference between a web and the guide rollers.
  • a web guide roller cleaning method is characterized by comprising the steps of coating the surface of a web with adhesive for removing a layer of ink and other contaminants from the surface of the guide rollers, and bringing the adhesive-coated web into contact with the surface of the guide rollers to adhesively transfer the ink and other contaminants onto the adhesive-coated web, thereby cleaning the surfaces of the guide rollers.
  • a web guide roller cleaning apparatus for cleaning a group of guide rollers disposed in a web path, comprising; an adhesive coating apparatus for coating the surface of a web with adhesive coating apparatus for coating the surface of a web with adhesive for removing a layer of ink and other contaminants which contaminates the surface of guide rollers; wherein the adhesive coating apparatus is disposed at the upstream side to the guide rollers to be cleaned.
  • the surfaces of the guide rollers are treated with a material having low surface energy, or subjected to having finely uneven face.
  • the adhesive is used a material having adhesiveness to oily substance.
  • the adhesive of the web is subjected to such a treatment as to prevent the stain adhesively-transferred to the adhesive of the web from being re-transferred to a member which is located at the downstream side of the last roller of the guide roller group and is brought into contact with the adhesive of the web.
  • Such a re-transfer preventing treatment can be performed by providing a non-adhesive property to the adhesive-coated surface of the web or covering the adhesive-coated surface of the web with a non-adhesive material.
  • the adhesive coating apparatus is actuated to coat a predetermined length of adhesive on the web surface which will be brought into contact with the guide rollers while the web is slowly traveled by a slow-operation of the machine.
  • the adhesive-coated surface of the web reaches a guide roller
  • the ink layer on the guide roller is adhesively attached to the adhesive-coated surface of the web during the running of the web along the surface of the guide roller while the stain layer on the guide roller is brought into contact with the adhesive on the web, and the stain layer is transferred onto the web when the web is separated from the guide roller, thereby cleaning the guide roller.
  • the present invention only one adhesive coating apparatus is provided, and thus the construction of the apparatus is simple.
  • the control program for coating the adhesive can be simplified. Therefore, a cost of manufacturing and maintenance can be cut down, and the maintenance of the apparatus is easily performed because the apparatus itself is simple.
  • the adhesive force of the stain layer to the surface of the guide roller can be extremely weakened, and thus the stain layer can be easily adhesively transferred to the adhesive layer of the web. Therefore, the amount (length) of the web to be used for the cleaning work can be reduced, and the cleaning time can be shortened.
  • adhesive 13 is coated on the surface of a web 3 to remove a stain layer 11 which is attached to the surface of guide roller 4 in the progress of the operation of the machine.
  • the adhesive coating apparatuses 12 (12A, 12B) are disposed at the upstream side of the web feeding path of the web 3 passing over guide roller to be cleaned so that the adhesive is coated on both sides of the web 3.
  • the adhesive coating apparatus 12 starts to operate at the cleaning operation start time, and coats the adhesive 13 on the surface of the web 3 which is fed from a web roll 2, thereby forming an adhesive layer 14.
  • the adhesive coating apparatus 12 comprises a liquid tank 15 for stocking adhesive 13, an initial roller 16 which is partially immersed in the liquid tank 15, and a coating roller 17 for receiving the adhesive 13 from the initial roller 16 and coating the adhesive on the surface of the web 3.
  • the coating rollers 17 of the adhesive coating apparatuses 12 are disposed to confront each other.
  • the adhesive coating apparatus 12 of this embodiment uses a roll coater type coating system to coat the adhesive, however, it may use another type coating system using a knife coater, a bar coater or the like.
  • Acrylic adhesive is used as the adhesive.
  • the acrylic adhesive is subjected to the same treatment as adhesive tape for packaging, or subjected to the treatment and further added with oil absorbent polymer.
  • the stain layer 11 on the guide roller 4 adheres to the surface of the adhesive layer of the web 3 during the running of the web 3 along the surface of the roller while the stain layer 11 is brought into contact with the adhesive layer 14, and the stain layer 11 is transferred to the web 3 when the web 3 is separated from the guide roller 4, thereby cleaning the guide roller 4.
  • the whole surface of the guide roller 4 is treated with a material having low surface energy or subjected to having finely uneven face by treatment to have a surface layer 4a to which foreign matters such as stain are hardly attached.
  • the low surface energy material is defined as the material which has an extremely weak adhesive force to the stain layer. That is, the provision of the low surface energy material reduces the adhesive force between the surface of the guide roller and the stain layer.
  • the low surface energy property as described above may be inherent to the material constituting the guide roller, or may be provided by the surface shape of the guide roller.
  • low surface energy resin such as fluorocarbon resin or the like may be coated on the surface of the guide roller.
  • fluorocarbon resin, silicon resin, steel (chrome) or the like may be used as the low surface energy material constituting the surface of the guide roller, and the surface of the guide roller is coated with the above material.
  • the surface of the guide roller is subjected to chrome plating.
  • satin-finish chrome plating or ceramics having finely uneven surface is used.
  • the length of the adhesive coated surface of the web in the web travel direction is determined by the number of rollers to be cleaned, the properties of the surfaces of the guide rollers, the level of the stain. In some instances, the thickness of the adhesive coating layer is controlled to form the adhesive coating layer which is optimum to the above situation. Further, there is provided a control system for selecting one of cleaning programs in accordance with such a situation that the guide roller can be perfectly cleaned in one-web-pass operation, that is, the operation in which the outer peripheral surface of the guide roller only once comes into contact with the adhesive layer surface of the web, or by using plural-web-pass operation, that is, the operation in which the outer peripheral surface of the guide roller must come into contact with the adhesive layer surface of the web at plural times.
  • the adhesive coating apparatus is actuated to coat a predetermined length of adhesive on the web surface coming into contact with the guide roller while the web is slowly traveled by the slow-operation of the machine.
  • the web 3 continues to travel and the adhesive coating surface of the web reaches each guide roller.
  • the web 3 runs along the surface of the guide roller while the stain layer on the guide roller comes into contact with the adhesive layer surface of the web.
  • the stain on the guide rollers is successively transferred to the adhesive layer 14 of the web 3, and it is carried to the end portion of the machine while the web 3 runs, thereby completing the cleaning work of the surfaces of all the guide rollers.
  • the cleaning method of this embodiment was tested under the following conditions.
  • the web which is subjected to a printing operation in a print portion is guided to a folding machine disposed at the rearmost stage of the web fed press to be folded in a predetermined fold style, and then discharged to the outside of the web fed press.
  • a sheeter maybe used to discharge the web as cut sheets.
  • the printed surface of the web is rubbed by a fixed web guide member or the like.
  • the print ink on the web is dried by a drying device or the like which is disposed in front of the folding machine, and fixed onto the web, so that the print image on the web is little damaged and the guide member is hardly stained with ink.
  • the web to which the stain of the guide roller is adhesively transferred is discharged through the folding machine, the sheeter or the like to the outside.
  • the adhesive layer comes into contact with the fixed guide or the rollers 20 of the folding machine 10 as shown in Fig. 2, and thus the stain as well as the adhesive layer of the web to which the stain is attached may be re-transferred to the folding machine when the adhesive layer of the web passes through the folding machine.
  • Reference numeral 21 represents a folding cylinder
  • reference numeral 22 represents a delivery.
  • Fig. 2 shows the process of the treatment for the web to which the stain is adhesively transferred.
  • the last guide roller 4A to be cleaned is the guide roller which is located at the most downstream side in the guide rollers which come into contact with the adhesive layer of the web.
  • the last portion (guide roller) of the guide roller group to be cleaned is not necessarily limited to the last guide roller located at the most downstream side of the guide roller group.
  • the inside roller of useful guide rollers, guide roller to have the most downstream been located in gets last portion.
  • the surface of a member for example, a guide member or a roller which comes into contact with the adhesive layer of the web after passing through the last guide roller 4A to be cleaned is formed of a low surface energy material like the guide rollers of the machine, or subjected to having finely uneven face, thereby designing the surface of the member so that stain are hardly attached to the guide member.
  • the web after passing through the last guide roller to be cleaned is not directed to an normal sheet pass such as the folding machine or the like, but is guided to a bypass 60, and then wound by a specially-installed rewinder 61 to be treated.
  • adhesive layer treating means 50 for treating the adhesive of the web so that the adhesively-transferred stain, .. are prevented from re-transferred is provided between the last guide roller of the machine and the folding machine.
  • the adhesiveness of the adhesive layer is nullified by the adhesive layer treating means 50, and the web is normally discharged through the folding machine, the sheeter or the like.
  • Fig. 3 shows an example of the adhesive layer treating means.
  • the adhesive layer treating means 50 is disposed between the last guide roller 4A of the guide roller group and a member 70 which is brought into contact with the adhesive layer surface of the web 3 after passing through the last guide roller 4A, and it comprises an adhesive layer treating device 51 and a drying device 56.
  • the adhesive layer treating means is adapted to make the adhesive layer surface of the web non-adhesive, and it coats the adhesive layer surface of the web with varnish and then subjected to a dry treatment.
  • the adhesive layer treating device 51 comprises a varnish coater for coating varnish on the adhesive layer surface of the web.
  • the varnish coater comprises a varnish tank 52 for stocking varnish 53, an initial roller 54 which is partially immersed in the varnish tank 52, and a coating roller 55 for receiving the varnish 53 from the initial roller 54 through an intermediate roller 54a to coat the adhesive layer surface of the web 3 with the vanish.
  • the same kinds of varnish as used for the overcoat on the print surface is used as the varnish 53.
  • the drying device 56 comprises a far infrared radiation device for irradiating far infrared radiation to the varnish coated on the adhesive layer surface of the web to dry (harden) the varnish.
  • the varnish coated on the adhesive layer surface of the web is exposed to far infrared radiation to be dried, whereby a non-adhesive and extremely thin varnish dried coating is formed on the adhesive layer of the web.
  • the adhesive is added with an additive for promoting the hardening of the adhesive, and then ultraviolet rays, electromagnetic wave or radio frequency wave is irradiated to adhesive.
  • the present invention it is unnecessary to make a speed difference between the web and the guide roller, so that the construction of the apparatus can be simplified. Further, it is sufficient to coat the adhesive on the surface of the web by a predetermined length, so that no complicated control program is required unlike the method for coating the first liquid and the second liquid. Therefore, the control device can be simplified. Further, the amount of web which is required to remove the stain layer from the surface of the guide roller is reduced, so that the running length of the web is shortened and thus the cleaning time can be also reduced.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Cleaning In General (AREA)
  • Treatment Of Fiber Materials (AREA)
EP97110918A 1996-07-02 1997-07-02 Reinigungsverfahren und -einrichtung für Bahnführungsrollen Withdrawn EP0816077A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP192879/96 1996-07-02
JP19287996A JPH1016199A (ja) 1996-07-02 1996-07-02 ウエブガイドローラ清浄方法及び装置

Publications (1)

Publication Number Publication Date
EP0816077A1 true EP0816077A1 (de) 1998-01-07

Family

ID=16298503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110918A Withdrawn EP0816077A1 (de) 1996-07-02 1997-07-02 Reinigungsverfahren und -einrichtung für Bahnführungsrollen

Country Status (4)

Country Link
EP (1) EP0816077A1 (de)
JP (1) JPH1016199A (de)
KR (1) KR980008569A (de)
CN (1) CN1172730A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6571620B2 (en) 2001-04-09 2003-06-03 Metso Automation Oy Method and arrangement for keeping measuring device clean
US6923534B2 (en) * 2001-09-04 2005-08-02 Seiko Epson Corporation Ink type recording device and method for cleaning control of the same
EP1847879A2 (de) * 2006-04-21 2007-10-24 E.I.Du pont de nemours and company Verfahren zur Reinigung einer automatischen Bearbeitungsvorrichtung
WO2007134786A1 (de) * 2006-05-18 2007-11-29 Hauck Juergen Vorrichtung zur kontaktreinigung sowie aufnahmeeinrichtung
GB2532255A (en) * 2014-11-13 2016-05-18 Itw Ltd Line cleaner

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030095629A (ko) * 2002-06-12 2003-12-24 최병국 양면 합포 방법 및 양면 합포기
KR100726419B1 (ko) * 2006-10-25 2007-06-11 주식회사 에스에프에이 인쇄장치
KR100888549B1 (ko) * 2007-04-18 2009-03-11 이경남 다중동시합포기
CN102745537B (zh) * 2012-07-18 2016-04-20 金红叶纸业集团有限公司 虚切装置及其刀辊清洁装置
JP6205677B1 (ja) * 2016-04-20 2017-10-04 下村　恭一 ローラーのクリーニング方法及びクリーニングロール
CN106379052B (zh) * 2016-11-17 2018-01-19 重庆强大巴郡知识产权服务有限公司 瓷砖印花装置
WO2024036439A1 (zh) * 2022-08-15 2024-02-22 宁德时代新能源科技股份有限公司 输送辊清洁方法、输送辊清洁装置及料带输送设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2081181A (en) * 1980-07-15 1982-02-17 Unilever Plc Cleaning offset printing blankets
US4774886A (en) * 1987-03-18 1988-10-04 Kertzman Harvey Z Rubber stamp cleaning apparatus
JPH0270440A (ja) * 1988-09-07 1990-03-09 Taiho Ind Co Ltd 印刷機構等の給紙ローラの清浄方法及び清浄具
DE3900660A1 (de) * 1989-01-11 1990-07-12 Rolf Georg Verfahren und vorrichtung zum anfahren/wiederanfahren des drucks bei einer rollenrotations-druckmaschine
US5080015A (en) * 1989-10-10 1992-01-14 Jimek International Ab Method and arrangement for cleaning guide rollers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2081181A (en) * 1980-07-15 1982-02-17 Unilever Plc Cleaning offset printing blankets
US4774886A (en) * 1987-03-18 1988-10-04 Kertzman Harvey Z Rubber stamp cleaning apparatus
JPH0270440A (ja) * 1988-09-07 1990-03-09 Taiho Ind Co Ltd 印刷機構等の給紙ローラの清浄方法及び清浄具
DE3900660A1 (de) * 1989-01-11 1990-07-12 Rolf Georg Verfahren und vorrichtung zum anfahren/wiederanfahren des drucks bei einer rollenrotations-druckmaschine
US5080015A (en) * 1989-10-10 1992-01-14 Jimek International Ab Method and arrangement for cleaning guide rollers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 251 (M - 0979) 29 May 1990 (1990-05-29) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6571620B2 (en) 2001-04-09 2003-06-03 Metso Automation Oy Method and arrangement for keeping measuring device clean
US6923534B2 (en) * 2001-09-04 2005-08-02 Seiko Epson Corporation Ink type recording device and method for cleaning control of the same
EP1847879A2 (de) * 2006-04-21 2007-10-24 E.I.Du pont de nemours and company Verfahren zur Reinigung einer automatischen Bearbeitungsvorrichtung
EP1847879A3 (de) * 2006-04-21 2009-08-19 E.I. Du Pont De Nemours And Company Verfahren zur Reinigung einer automatischen Bearbeitungsvorrichtung
WO2007134786A1 (de) * 2006-05-18 2007-11-29 Hauck Juergen Vorrichtung zur kontaktreinigung sowie aufnahmeeinrichtung
GB2532255A (en) * 2014-11-13 2016-05-18 Itw Ltd Line cleaner
GB2532255B (en) * 2014-11-13 2020-04-29 Itw Ltd Line cleaner

Also Published As

Publication number Publication date
KR980008569A (ko) 1998-04-30
JPH1016199A (ja) 1998-01-20
CN1172730A (zh) 1998-02-11

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