EP1170066A1 - Procédé et dispositif pour le nettoyage de rouleaux et de bandes - Google Patents

Procédé et dispositif pour le nettoyage de rouleaux et de bandes Download PDF

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Publication number
EP1170066A1
EP1170066A1 EP01109824A EP01109824A EP1170066A1 EP 1170066 A1 EP1170066 A1 EP 1170066A1 EP 01109824 A EP01109824 A EP 01109824A EP 01109824 A EP01109824 A EP 01109824A EP 1170066 A1 EP1170066 A1 EP 1170066A1
Authority
EP
European Patent Office
Prior art keywords
plasma
roller
jet
rollers
nozzle
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.)
Ceased
Application number
EP01109824A
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German (de)
English (en)
Inventor
Peter FÖRNSEL
Christian Buske
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1170066A1 publication Critical patent/EP1170066A1/fr
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
    • 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
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
    • 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 invention relates to a method and an apparatus for removing organic contaminants from the surface of rollers or belts.
  • rollers including rolls or endless belts used for transport or the treatment of web materials such as paper, textiles or foils are, there is often the problem that the surface of the roller or of the tape is contaminated by organic compounds that diffuse out of the treated sheet materials.
  • Transport rollers, pressure rollers and the like are contaminated by wax, that comes out of the paper.
  • photoconductors, fixing rollers or intermediate image carriers in copiers that are indirect or direct come into contact with the copy paper.
  • Also in the manufacture or processing of plastic films especially in film extrusion Wide slot nozzles can easily transport rollers or chill rolls be contaminated by organic compounds that are freshly extruded from the Leak plastic materials. Because such contaminants are on accumulate on the roller surface, it is for permanent trouble-free Operation of the facilities required these contaminants constantly or in certain Remove intervals.
  • the object of the invention is a simple, efficient and versatile To create a process that removes organic contaminants from the Have the surface removed from rollers or belts.
  • This object is achieved in that a beam of atmospheric plasma directed to the surface.
  • a plasma nozzle is known with which a jet of a relatively cool atmospheric plasma can be generated.
  • This Plasma nozzle is mainly used to plastic surfaces before gluing, printing or pretreat painting so that the wettability of the surface for liquids is increased.
  • This pretreatment effect is based on that the atmospheric plasma has a high concentration of chemically highly reactive Contains ions, radicals and excited atoms and molecules that the Reduce the surface tension of the treated substrate.
  • the invention is based on the discovery that such an atmospheric plasma due to its responsiveness is also suitable for organic contaminants to destroy chemically and thus into volatile compounds convert, which then evaporate from the treated surface.
  • the atmospheric Plasma has a relatively low temperature, for example comparable to the temperature of a candle flame, and it for the destruction of the organic compounds is sufficient if the plasma jet treated
  • the process can only be brushed over for a short time, the method can be used with a large number of substrates to be cleaned without affecting the surface of the substrate itself is damaged.
  • the above-mentioned effect that the surface tension of the substrate by plasma treatment is certain Applications a very welcome side effect.
  • a device for performing the method according to the invention has at least one plasma nozzle, one on the surface of the roller or of the strip directed beam of an atmospheric plasma and which, in the case of a roller, is movable in the axial direction over the surface of the roller and in the case of a belt is movable transversely to the direction of transport of the belt, so that the surface to be cleaned or at least the part of the surface to be cleaned Surface of the roller or belt across the entire width of the plasma jet is swept over.
  • the plasma nozzle can also be used slow speed or intermittently in the axial direction of the roller be so that with each roller revolution an annular or helical Track on the roller surface is cleaned.
  • the plasma nozzle can run at a relatively high speed be moved back and forth so that the surface of the roller or the width of the strip is swept by the plasma jet.
  • the plasma nozzle can also be designed so that it is conical or fan-shaped widened plasma jet which generates a larger area of the cleaning surface. Examples of suitable plasma nozzles will be described in DE 299 21 694 U1 and DE 299 19 142 U1.
  • the only drawing figure shows a cross section of a roller to be cleaned and an axial section through a plasma nozzle for cleaning the surface this roller.
  • a roller 10 which together with another Roller 12 forms a gap through which, for example, a paper web is transported becomes. Wax and other low molecular weight compounds that come out of paper emerge, can therefore accumulate on the surface of the roller 10 and must be removed from time to time or continuously.
  • a plasma nozzle 14 is arranged on the circumference of the roller 10, with which a jet 16 of an atmospheric plasma directed onto the surface of the roller 10 becomes.
  • the plasma nozzle 14 has a tubular, tapered toward the mouth 18 and electrically grounded outer electrode 20, to which at the rear end a tubular housing 22 made of electrically insulating material, for example made of ceramic.
  • a cover 24 of the housing 22 forms an inlet 26, with the help of a hose, a working gas, such as air, in the plasma nozzle can be introduced.
  • Swirl device 28 is arranged, which is the shape of a cross section of the housing filling disc with a wreath obliquely in the circumferential direction Has channels 30 and in the middle of a coaxially projecting into the outer electrode 20 Pin electrode 32 carries.
  • the plasma gas 14 is flowed through by the working gas the swirl device 28 is swirled and thus vortex-shaped by the proportionally long outer electrode 20 flows to the mouth 18 and thereby on the
  • the central axis of the outer electrode 20 forms a vortex core.
  • To the pin electrode 32 becomes a voltage using a high frequency high voltage generator 34 of the order of 5 to 30 kV, the frequency of which, for example Is 10 to 20 kHz.
  • the wall of the housing 22 made of ceramic material forms a dielectric, so that it is through to the pin electrode 32 and made of conductive material existing swirl device 28 initially applied to a Corona discharge, which then causes an arc discharge between the Pin electrode 32 and the outer electrode 20 is ignited.
  • the arc 36 this arc discharge is carried away by the swirled flow of the working gas and thus prevented from directly hitting the wall of the outer electrode 20 to flip over. Instead, the arc in the vortex core becomes the swirl-shaped one Flow channeled so that it is only in the mouth 18 to the outer electrode branched.
  • the height of the plasma nozzle 14 can be adjusted by means of an arm 38 on a carriage 40 held so that the distance of the plasma nozzle 14 to the surface of the Roller 10 can be adjusted as required.
  • the carriage 40 is on two guide rods 42 out and back and forth with the help of a drive, not shown movable in the axial direction of the roller 10.
  • the plasma nozzle 14 moves at a relatively high speed and moved in the axial direction of the roller so that the plasma jet 16th the roller surface sweeps in the axial direction.
  • the reciprocating movement of the plasma nozzle 14 rotates the roller 10 by an angle that is smaller than that swept by the plasma beam 16 Circumferential angle, so that the surface of the roller 10 is cleaned without gaps.
  • the plasma nozzle 14 becomes steady or gradually moved, and the average speed is chosen so that the the distance traveled during one roll revolution is smaller than the width of the plasma jet 16.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Cleaning In General (AREA)
  • Plasma Technology (AREA)
EP01109824A 2000-07-05 2001-04-21 Procédé et dispositif pour le nettoyage de rouleaux et de bandes Ceased EP1170066A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10032753 2000-07-05
DE10032753 2000-07-05

Publications (1)

Publication Number Publication Date
EP1170066A1 true EP1170066A1 (fr) 2002-01-09

Family

ID=7647932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01109824A Ceased EP1170066A1 (fr) 2000-07-05 2001-04-21 Procédé et dispositif pour le nettoyage de rouleaux et de bandes

Country Status (2)

Country Link
US (1) US6659110B2 (fr)
EP (1) EP1170066A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1410852A1 (fr) * 2002-10-18 2004-04-21 Plasma Treat GmbH Méthode et appareil pour l'enlèvement d'une couche de peinture à base de polymères
CN110605915A (zh) * 2019-09-29 2019-12-24 适新科技（苏州）有限公司 一种等离子自动清洗装置

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040206133A1 (en) * 2003-04-19 2004-10-21 Kyung-Chul Woo Washing machine
AT412719B (de) * 2003-06-16 2005-06-27 Eckelt Glas Gmbh Verfahren und vorrichtung zum bereichsweisen entschichten von glasscheiben
US20060172081A1 (en) * 2005-02-02 2006-08-03 Patrick Flinn Apparatus and method for plasma treating and dispensing an adhesive/sealant onto a part
US8328982B1 (en) * 2005-09-16 2012-12-11 Surfx Technologies Llc Low-temperature, converging, reactive gas source and method of use
EP1965833B1 (fr) * 2005-12-20 2013-08-28 PlasmaTreat GmbH Procede pour desinfecter des objets
TWI335450B (en) 2006-05-15 2011-01-01 Ind Tech Res Inst Film cleaning method and apparatus
US20070284342A1 (en) * 2006-06-09 2007-12-13 Morten Jorgensen Plasma treatment method and apparatus
US7547861B2 (en) * 2006-06-09 2009-06-16 Morten Jorgensen Vortex generator for plasma treatment
US8632651B1 (en) 2006-06-28 2014-01-21 Surfx Technologies Llc Plasma surface treatment of composites for bonding
TWI341872B (en) * 2006-08-07 2011-05-11 Ind Tech Res Inst Plasma deposition apparatus and depositing method thereof
US20080203595A1 (en) * 2007-02-23 2008-08-28 Kazumasa Yokoyama Solution casting method
TWI461113B (zh) * 2011-08-24 2014-11-11 Nat Univ Tsing Hua 常壓電漿噴射裝置
US9406485B1 (en) 2013-12-18 2016-08-02 Surfx Technologies Llc Argon and helium plasma apparatus and methods
US10800092B1 (en) 2013-12-18 2020-10-13 Surfx Technologies Llc Low temperature atmospheric pressure plasma for cleaning and activating metals
US10032609B1 (en) 2013-12-18 2018-07-24 Surfx Technologies Llc Low temperature atmospheric pressure plasma applications
JP6832858B2 (ja) * 2015-01-22 2021-02-24 セルン チェン，チア 非熱ソフトプラズマ洗浄
TW201709775A (zh) * 2015-08-25 2017-03-01 馗鼎奈米科技股份有限公司 電弧式大氣電漿裝置
US10827601B1 (en) 2016-05-03 2020-11-03 Surfx Technologies Llc Handheld plasma device
US11357093B2 (en) * 2016-12-23 2022-06-07 Plasmatreat Gmbh Nozzle assembly, device for generating an atmospheric plasma jet, use thereof, method for plasma treatment of a material, in particular of a fabric or film, plasma treated nonwoven fabric and use thereof

Citations (5)

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Publication number Priority date Publication date Assignee Title
DE29503752U1 (de) * 1995-02-24 1995-04-27 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Reinigungsvorrichtung
DE4338866C1 (de) * 1993-11-13 1995-06-14 Wolf Gmbh Richard Medizinisches Instrument zur Applikation von Heißgas
DE19532412A1 (de) * 1995-09-01 1997-03-06 Agrodyn Hochspannungstechnik G Verfahren und Vorrichtung zur Oberflächen-Vorbehandlung von Werkstücken
JPH10321677A (ja) * 1997-05-16 1998-12-04 Matsushita Electric Ind Co Ltd テープ状ワークのプラズマクリーニング装置
EP0995504A2 (fr) * 1998-10-20 2000-04-26 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Procédé et dispositif pour nettoyer des cylindres et/ou des rouleaux dans des installations de coulée de bandes, des laminoirs et/ou des lignes de fabrication de bandes, en particulier des laminoirs de dressage ou des laminoirs d'écrouissage analogues

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Publication number Priority date Publication date Assignee Title
JPH0790099A (ja) * 1993-09-20 1995-04-04 Toray Ind Inc 長尺状物のプラズマ処理方法及びその装置
US5693241A (en) * 1996-06-18 1997-12-02 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Atmospheric pressure method and apparatus for removal of organic matter with atomic and ionic oxygen
DE19648999C2 (de) 1996-11-27 2000-08-03 Afs Entwicklungs & Vertriebs G Vorrichtung zur Reinigung, Beschichtung und/oder Aktivierung von Kunststoffoberflächen
US5961772A (en) * 1997-01-23 1999-10-05 The Regents Of The University Of California Atmospheric-pressure plasma jet
DE29805999U1 (de) 1998-04-03 1998-06-25 Agrodyn Hochspannungstechnik GmbH, 33803 Steinhagen Vorrichtung zur Plasmabehandlung von Oberflächen
DE29919142U1 (de) 1999-10-30 2001-03-08 Agrodyn Hochspannungstechnik G Plasmadüse
DE29921694U1 (de) 1999-12-09 2001-04-19 Agrodyn Hochspannungstechnik G Plasmadüse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4338866C1 (de) * 1993-11-13 1995-06-14 Wolf Gmbh Richard Medizinisches Instrument zur Applikation von Heißgas
DE29503752U1 (de) * 1995-02-24 1995-04-27 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Reinigungsvorrichtung
DE19532412A1 (de) * 1995-09-01 1997-03-06 Agrodyn Hochspannungstechnik G Verfahren und Vorrichtung zur Oberflächen-Vorbehandlung von Werkstücken
JPH10321677A (ja) * 1997-05-16 1998-12-04 Matsushita Electric Ind Co Ltd テープ状ワークのプラズマクリーニング装置
EP0995504A2 (fr) * 1998-10-20 2000-04-26 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Procédé et dispositif pour nettoyer des cylindres et/ou des rouleaux dans des installations de coulée de bandes, des laminoirs et/ou des lignes de fabrication de bandes, en particulier des laminoirs de dressage ou des laminoirs d'écrouissage analogues

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 03 31 March 1999 (1999-03-31) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1410852A1 (fr) * 2002-10-18 2004-04-21 Plasma Treat GmbH Méthode et appareil pour l'enlèvement d'une couche de peinture à base de polymères
CN110605915A (zh) * 2019-09-29 2019-12-24 适新科技（苏州）有限公司 一种等离子自动清洗装置
CN110605915B (zh) * 2019-09-29 2024-06-07 适新科技（苏州）有限公司 一种等离子自动清洗装置

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US20020002982A1 (en) 2002-01-10
US6659110B2 (en) 2003-12-09

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