EP1565314B1 - Procede de nettoyage de l'ecran d'une installation de serigraphie et machine de serigraphie permettant de mettre en oeuvre ce procede - Google Patents

Procede de nettoyage de l'ecran d'une installation de serigraphie et machine de serigraphie permettant de mettre en oeuvre ce procede Download PDF

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Publication number
EP1565314B1
EP1565314B1 EP03772227A EP03772227A EP1565314B1 EP 1565314 B1 EP1565314 B1 EP 1565314B1 EP 03772227 A EP03772227 A EP 03772227A EP 03772227 A EP03772227 A EP 03772227A EP 1565314 B1 EP1565314 B1 EP 1565314B1
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EP
European Patent Office
Prior art keywords
intermediate printing
printing device
roller
screen
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.)
Expired - Lifetime
Application number
EP03772227A
Other languages
German (de)
English (en)
Other versions
EP1565314A1 (fr
Inventor
Klaus Messmer
Ewald König
Dietmar Weber
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.)
Thieme GmbH and Co KG
Original Assignee
Thieme GmbH and Co KG
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Filing date
Publication date
Application filed by Thieme GmbH and Co KG filed Critical Thieme GmbH and Co KG
Publication of EP1565314A1 publication Critical patent/EP1565314A1/fr
Application granted granted Critical
Publication of EP1565314B1 publication Critical patent/EP1565314B1/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
    • B41F35/003—Cleaning arrangements or devices for screen printers or parts thereof
    • B41F35/005—Cleaning arrangements or devices for screen printers or parts thereof for flat screens

Definitions

  • the invention relates to a method for cleaning the screen stencil of a screen printing device, in which a paper web for an intermediate pressure is placed under the screen template and printed by a doctor blade running over it.
  • the invention also relates to a screen printing machine for carrying out this method.
  • a cleaning method and a suitable for performing the cleaning method screen printing machine is from the DE 199 17 794 C2 known.
  • the intermediate printing table is formed as a parallel to the guide rail of the printing table einschwenkbarer table, which is below the guide of the printing table during the printing and is swung up for the intermediate pressure for the purpose of cleaning under the Siebschablone.
  • Machines of this type work satisfactorily, but can not prevent the disadvantage that the screen printing ink dries in part and clogs the screen cloth. It is therefore necessary in screen printing devices, despite the arrangement of an intermediate printing table used for screen cleaning, to stop production in order to clean the screen.
  • the present invention has for its object to perform such a cleaning largely automatically and indeed to avoid production loss during operation. At the same time, it aims to create better working conditions and avoid mis-production.
  • the wetting is carried out by a placed in contact with the underside of the screen template rotating roller or brush, which dips into a cleaning agent.
  • the rotation of the roller or brush, the detergent is conveyed out of the bath and brought to the bottom of the screen template, where it can dissolve dried paint residues, which are then removable at intermediate pressure.
  • the invention also relates to a screen printing machine for carrying out the cleaning method, wherein the screen printing machine is equipped with an intermediate printing device with which a paper web is inserted under the screen template for the purpose of cleaning.
  • the new screen printing machine is characterized by one of the intermediate pressure device associated and arranged transversely to the direction of the intermediate pressure direction of rotation body, which is coatable with a detergent and comes before the intermediate pressure in contact with the underside of the Siebschablone and can be guided along this.
  • the cleaning can be done automatically and in the screen printing machine.
  • a roller which dips into a bath of the detergent.
  • This cleaning agent may be contained in a further development of the invention in a roll comprising the bottom and adapted to the shape of the roll container, wherein the surface of the roll is formed roughened to hold a sufficiently thick layer of the detergent and to bring against the Siebschablone.
  • the roller is driven in rotation, and it engages for this purpose with laterally arranged pinions in a rack, which is arranged next to the screen template on the printing unit.
  • the intermediate pressure device itself can be lowered and raised and thus formed and folded down, wherein a control device may be provided for determining the cleaning cycle, so that, for example, after every second, third or fifth printing, a cleaning printing operation is performed.
  • the roller and its associated container to which the cleaning agent is supplied in a simple manner in the circuit, arranged at the screen stencil facing the end of a slidably mounted in the direction of blade movement paper counter-pressure roller.
  • the roller with the container may be conveniently arranged on a pair of pivot levers which acted upon by pneumatic cylinders so that the lateral pinion of the roller engage in the rack, which runs fixed next to the Siebschablone ,
  • the intermediate pressure roller can be provided with paper and arranged to be movable at least by the length of the screen template, so that before the intermediate pressure, the entire bottom of the screen template with a cleaning agent is wettable. In practice, the wetting in the pressure range is sufficient.
  • the intermediate pressure roller with a unwound paper web can also be an endless strip material for receiving the intermediate pressure may be provided, or even a print carrier roll. In both variants, a continuous cleaning of the endless web or the print carrier roll can be ensured. Consumables in the form of paper then do not accrue.
  • FIG. 1 an intermediate printing device 1 is shown, which is associated with a screen printing machine, not shown. From the screen printing machine held in a frame screen 2 is shown, which is arranged in a known manner between a mobile under them intermediate pressure roller and a squeegee unit lying above it. Fixedly connected to the screen printing machine is also a side and parallel to the longitudinal direction of the screen template 2 extending arranged rack 3, which will be discussed later.
  • the intermediate printing device 1 is equipped within a support frame 4 with a paper web 5, which is removable from a roll and guided so that it can be performed via an intermediate pressure roller 7 and below this again back to a second roller.
  • the paper web 5 is guided within the support frame 4 so that they can join a reciprocating motion of the intermediate pressure roller 7 in the direction of the arrows 8.
  • a transverse to the movement path of the intermediate pressure roller 7 extending roller 9 is arranged, which, as shown in the enlarged view Fig. 2 emerges, immersed in a largely surrounding container 10 which is filled with a liquid detergent. It is a cleaning agent that is able to dissolve the color used in screen printing.
  • the container 10 and guided in it roller 9 are mounted on a crossbar 11 which is mounted at the right end of a respective pivotable about the axis 12 double lever 13.
  • the other lever arm 13a of the double lever is in contact with the plunger 14 of a pneumatic cylinder 15, which allows the double lever 13 from the in Fig. 1 shown position to swing up and down.
  • the roller 9 is provided at one end, on which it is mounted on trunnions in each end wall of the container 10, with a pinion 16 which, upon actuation of the cylinder 15 and upon pivoting of the double lever 13 in the counterclockwise direction in engagement with the rack. 3 is brought, like that in Fig. 2 also shown.
  • the protruding from the support frame 4 intermediate pressure roller 7 has on the one hand a storage and on the other two laterally projecting tabs 17 which can be brought into operative connection with the squeegee unit, not shown, or with its drive.
  • the operation of the intermediate pressure device shown is the following:
  • a pulse is delivered via a corresponding control device, which leads to the fact that during the return of the squeegee unit, the intermediate pressure roller 7, as in Fig. 3 shown, is driven under the screen stencil of the screen printing machine.
  • the pulse of the double lever 13 has been pivoted counterclockwise by the cylinder 15, so that the detergent roller 9 engages with its pinions 16 in the fixedly arranged next to the screen template 2 rack.
  • the roller 9 is guided in a counterclockwise rotating manner on the screen template 2 so that it comes into contact with the underside of the screen template 2.
  • the roller 9 therefore wets the same with cleaning agent, which is conveyed by the rotation of the roller 9 from the container 10 when traveling along the underside of the screen template 2.
  • the detergent is otherwise performed in a manner not shown in detail in the circuit through the container 10, so that the level of the detergent in the container 10 can always be kept constant.
  • the roller 9 can thereby be guided once or even several times at the bottom for wetting the Siebschablonenunterseite, so that the necessary wetting takes place in each case.
  • the intermediate pressure roller 7 is correspondingly often reciprocated by the drive of the doctor blade mechanism for this purpose.
  • the intermediate pressure roller 7 moves along with the paper web 5 completely under the screen template 2, and after lowering the squeegee printing the printing of the remaining color on the paper web 5, which is then deducted accordingly and wound up as waste becomes.
  • the stencil 2 is also cleaned of dried paint residues.
  • the invention provides a very simple way of cleaning a screen stencil 2 of a screen printing machine, which takes place automatically.
  • the device is largely maintenance-free and allows a screen cleaning without significant production downtime.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Screen Printers (AREA)
  • Printing Methods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Claims (18)

  1. Procédé de nettoyage de l'écran (2) d'une installation de sérigraphie au cours duquel une bande de papier (5) est placée sous l'écran pour une impression intermédiaire puis imprimée par une racle guidée au-dessus de ce dernier, caractérisé en ce que la face inférieure de l'écran (2) est enduite d'un produit de nettoyage avant la réalisation de l'impression intermédiaire.
  2. Procédé selon la revendication 1, caractérisé en ce que l'imprégnation est réalisée au moyen d'un cylindre rotatif (9) ou d'une brosse plongé(e) dans le produit de nettoyage et mis(e) en contact avec la face inférieure de l'écran (2).
  3. Dispositif d'impression intermédiaire pour une machine de sérigraphie pour la mise en oeuvre du procédé selon la revendication 1, avec une bande de papier (5) et un cylindre d'impression intermédiaire (7), la bande de papier (5) pouvant être introduite sous l'écran (2) en vue du nettoyage de ce dernier, caractérisé par un corps rotatif (9) affecté au dispositif d'impression intermédiaire (1) et disposé transversalement par rapport au sens de mouvement (8) du dispositif d'impression intermédiaire (1), ledit corps pouvant être enduit d'un produit de nettoyage et pouvant longer la face inférieure de l'écran (2) avant l'impression intermédiaire en contact avec cette dernière.
  4. Dispositif d'impression intermédiaire selon la revendication 3, caractérisé en ce que le corps rotatif est un cylindre (9) plongeant dans un bain de produit de nettoyage.
  5. Dispositif d'impression intermédiaire selon la revendication 4, caractérisé en ce que le produit de nettoyage est contenu dans un récipient (10) enveloppant par le bas le cylindre (9) et adapté à la forme de ce dernier.
  6. Dispositif d'impression intermédiaire selon la revendication 5, caractérisé en ce que le produit de nettoyage est amené au récipient (10) en circuit fermé.
  7. Dispositif d'impression intermédiaire selon la revendication 4, caractérisé en ce que la surface du cylindre (9) est rugueuse.
  8. Dispositif d'impression intermédiaire selon la revendication 4, caractérisé en ce que le cylindre (9) est pourvu d'un pignon (16) disposé latéralement, lequel s'engrène avec une crémaillère (3) disposée près de l'écran (2) et fixée sur le cadre mère de la machine de sérigraphie.
  9. Dispositif d'impression intermédiaire selon la revendication 3, caractérisé en ce que le corps rotatif (9) peut être abaissé et relevé.
  10. Dispositif d'impression intermédiaire selon la revendication 3, caractérisé en ce qu'il est prévu un dispositif de commande pour la détermination du cycle de nettoyage.
  11. Dispositif d'impression intermédiaire selon la revendication 4, caractérisé en ce que le cylindre (9) et le récipient (10) pour le produit de nettoyage attribué sont disposés à l'extrémité d'un cylindre d'impression intermédiaire (7) déplaçable dans le sens du mouvement de la racle, ladite extrémité étant tournée vers l'écran (2).
  12. Dispositif d'impression intermédiaire selon la revendication 11, caractérisé en ce que le cylindre (9) et le récipient (10) sont disposés sur une paire de leviers pivotants (13).
  13. Dispositif d'impression intermédiaire selon l'une des revendications 8 et 12, caractérisé en ce que la paire de leviers pivotants (13) peut être sollicitée par des cylindres pneumatiques (15), de sorte que le pignon (16) s'engrène avec la crémaillère (3).
  14. Dispositif d'impression intermédiaire selon la revendication 3, caractérisé en ce que le cylindre d'impression intermédiaire (7) est pourvu d'une bande de papier (5) porté par des rouleaux et pouvant être déplacée au moins de la longueur de l'écran (2).
  15. Dispositif d'impression intermédiaire selon la revendication 14, caractérisé en ce que la bande de papier (5) est conçue sous la forme d'une bande continue servant à la réception de la couleur et du nettoyant.
  16. Dispositif d'impression intermédiaire selon la revendication 15, caractérisé en ce que, lorsque le produit de nettoyage est en circulation, la bande continue est débarrassée de la couleur et, lorsqu'elle est sèche, est à nouveau disponible à l'impression.
  17. Dispositif d'impression intermédiaire selon la revendication 16, caractérisé en ce que la bande continue est nettoyée avec un nettoyant amené en circuit fermé à l'aide de brosses, de racles de nettoyage et de buses de pulvérisation.
  18. Dispositif d'impression intermédiaire selon la revendication 3, caractérisé en ce que l'impression intermédiaire servant au nettoyage de l'écran se fait à l'aide d'un cylindre porte-plaque se déroulant sous le tamis, ledit cylindre étant automatiquement nettoyé selon la revendication 17.
EP03772227A 2002-11-27 2003-10-16 Procede de nettoyage de l'ecran d'une installation de serigraphie et machine de serigraphie permettant de mettre en oeuvre ce procede Expired - Lifetime EP1565314B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10256326 2002-11-27
DE10256326A DE10256326A1 (de) 2002-11-27 2002-11-27 Verfahren zur Reinigung der Siebschablone einer Siebdruckeinrichtung und Siebdruckmaschine zur Durchführung des Verfahrens
PCT/EP2003/011475 WO2004048098A1 (fr) 2002-11-27 2003-10-16 Procede de nettoyage de l'ecran d'une installation de serigraphie et machine de serigraphie permettant de mettre en oeuvre ce procede

Publications (2)

Publication Number Publication Date
EP1565314A1 EP1565314A1 (fr) 2005-08-24
EP1565314B1 true EP1565314B1 (fr) 2011-11-23

Family

ID=32318904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03772227A Expired - Lifetime EP1565314B1 (fr) 2002-11-27 2003-10-16 Procede de nettoyage de l'ecran d'une installation de serigraphie et machine de serigraphie permettant de mettre en oeuvre ce procede

Country Status (7)

Country Link
US (1) US7434510B2 (fr)
EP (1) EP1565314B1 (fr)
AT (1) ATE534516T1 (fr)
AU (1) AU2003280385A1 (fr)
DE (1) DE10256326A1 (fr)
PL (1) PL377001A1 (fr)
WO (1) WO2004048098A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8733245B2 (en) * 2010-02-09 2014-05-27 Samsung Techwin Co., Ltd. Screen printer
CN104085187B (zh) * 2014-07-09 2016-06-01 湖州石淙印染有限公司 一种平网印花网版的清洗装置
CN105689309A (zh) * 2016-03-03 2016-06-22 厦门市稻贞科技有限公司 一种用于网框清洗的高压清洗装置及其工作方法
WO2020188946A1 (fr) * 2019-03-20 2020-09-24 パナソニックＩｐマネジメント株式会社 Dispositif de sérigraphie et procédé de sérigraphie
CN113370654B (zh) * 2021-06-29 2023-06-27 晶澳太阳能有限公司 太阳能电池印刷设备
CN113246595B (zh) * 2021-07-15 2021-09-21 兴晔新材料(南通)有限公司 一种纺织面料印花机及其印花工艺

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
AT335961B (de) * 1973-12-28 1977-04-12 Zimmer Peter Einrichtung zum reinigen einer siebdruckrotationsschablone
JPS6026710B2 (ja) * 1981-04-09 1985-06-25 有限会社しるく印刷社 スクリ−ン印刷機におけるスクリ−ン版の清掃方法及びその装置
AT393246B (de) * 1989-03-31 1991-09-10 Hwb Maschinenbau Auftragsvorrichtung zum aufbringen fliessfaehiger medien auf ebene flaechen, bahnen, walzen od. dgl.
CA2169236C (fr) * 1995-02-18 2002-01-29 Okie Tani Dispositif servant au nettoyage d'un ecran d'impression utilise en serigraphie
DE19605058C2 (de) * 1996-02-12 1999-11-25 Ibg Monforts Gmbh & Co Waschmaschine zum Reinigen von Schablonen
JP3694132B2 (ja) 1996-12-24 2005-09-14 松下電器産業株式会社 スクリーン印刷におけるスクリーンの清掃方法及び装置
JPH10217433A (ja) 1997-02-07 1998-08-18 Itsukou:Kk スクリーン印刷機のスクリーンマスクのクリーニング装置
JPH10250043A (ja) * 1997-03-17 1998-09-22 Taiyo Yuden Co Ltd スクリーン印刷方法と装置
JPH1158699A (ja) * 1997-08-20 1999-03-02 Matsushita Electric Ind Co Ltd スクリーンクリーニング装置
JP3478958B2 (ja) * 1997-11-28 2003-12-15 株式会社 日立インダストリイズ スクリーン印刷装置および印刷方法並びにマスククリーニング方法
JPH11198354A (ja) * 1998-01-14 1999-07-27 Mitani Denshi Kogyo Kk スクリーン印刷用マスクのマスク清掃装置およびそれを備えたスクリーン印刷装置
JPH11254655A (ja) * 1998-03-05 1999-09-21 Rohm Co Ltd スクリーン印刷用印版のクリーニング方法及び装置
DE19917794C2 (de) * 1999-04-20 2001-03-08 Thieme Gmbh & Co Kg Siebdruckmaschine
JP2002036501A (ja) * 2000-07-28 2002-02-05 Riso Kagaku Corp 孔版印刷装置
JP2002254608A (ja) * 2001-03-01 2002-09-11 Ono Sokki Co Ltd スクリーン印刷版クリーニング装置とその使用方法、及び、スクリーン印刷版クリーニング方法
JP2003266647A (ja) 2002-03-12 2003-09-24 Noritake Co Ltd スクリーン製版清掃装置

Also Published As

Publication number Publication date
WO2004048098A8 (fr) 2004-11-18
US20060180037A1 (en) 2006-08-17
EP1565314A1 (fr) 2005-08-24
ATE534516T1 (de) 2011-12-15
AU2003280385A1 (en) 2004-06-18
WO2004048098A1 (fr) 2004-06-10
DE10256326A1 (de) 2004-06-17
US7434510B2 (en) 2008-10-14
AU2003280385A8 (en) 2004-06-18
PL377001A1 (pl) 2006-01-23

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