EP0340104A1 - Vorrichtung zur Eintauchbehandlung eines rohrförmigen Gegenstandes, der eine äussere zerkratzbare Oberfläche aufweisst in einem Becken - Google Patents

Vorrichtung zur Eintauchbehandlung eines rohrförmigen Gegenstandes, der eine äussere zerkratzbare Oberfläche aufweisst in einem Becken Download PDF

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Publication number
EP0340104A1
EP0340104A1 EP89401178A EP89401178A EP0340104A1 EP 0340104 A1 EP0340104 A1 EP 0340104A1 EP 89401178 A EP89401178 A EP 89401178A EP 89401178 A EP89401178 A EP 89401178A EP 0340104 A1 EP0340104 A1 EP 0340104A1
Authority
EP
European Patent Office
Prior art keywords
support
bath
frame
along
immersion
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Withdrawn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
EP89401178A
Other languages
English (en)
French (fr)
Inventor
Frédéric Huguel
Jean-Claude Lambert
Jacques Wirtz
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.)
PIERRE PHILIPPE Ets
Original Assignee
PIERRE PHILIPPE Ets
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 PIERRE PHILIPPE Ets filed Critical PIERRE PHILIPPE Ets
Publication of EP0340104A1 publication Critical patent/EP0340104A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • 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
    • B41F35/004—Cleaning arrangements or devices for screen printers or parts thereof for cylindrical screens

Definitions

  • the invention relates to a device for the treatment by immersion in a bath of a tubular object having a fragile wall.
  • This device is used in particular for cleaning stencils or stencils used in printing machines.
  • Various types of treatment devices are already known for immersing an object in a bath.
  • This bath can contain various chemical agents for attacking the object and / or constitute a medium for transmitting ultrasonic waves.
  • Such devices include a bath, an object support associated with a manual or automatic handling system, the latter generally consisting of a nacelle suspended from a winch or the like.
  • These devices can also include means for rotating the object to be treated around a horizontal axis to increase the effectiveness of the physical or chemical action of the bath.
  • these devices are capable of processing a wide variety of objects, the manipulation of the objects through them is often too rough to be suitable for objects which are not very rigid and have large external surfaces and fragile walls, such as rotary stencils. or stencils used in printing machines. Indeed, if we do not take special precautions for the penetration of these parts in the bath, the resistance to penetration that the bath offers can cause deformations and wilting of the fragile outer wall of objects.
  • the main purpose of the invention is to remedy this situation by proposing a device which allows progressive immersion in a treatment bath of a tubular object having a fragile wall, which also has a large external surface.
  • the object support is articulated on a mobile carriage sliding along the frame and comprises pivoting actuation means between a loading position and a position of penetration and immersion of the support of the object. 'object, harnessed between the object support and the carriage.
  • such a device allows, if necessary, to evacuate the air trapped inside the object during immersion in the bath, thereby improving the effectiveness of the treatment, and in particular the transmission of ultrasound. .
  • a device for the treatment by immersion in a bath of a tubular object having a fragile outer surface comprising a vertical frame along which slides a support for the object, means drive the object support along the frame, a tank containing a bath, the object support being movable between a loading position in which the object is loaded horizontally and a position of penetration and immersion in the bath in which the object is inclined relative to the bath, in which the object support is mounted directly sliding on a guide path carried by the frame, this guide path constituting the means for pivoting actuation of the object support between a loading position substantially parallel to the surface of the bath and a penetrating position in the bath inclined with respect to this surface.
  • the guide path comprises an upper section along which the support of the object is in the loading position and a lower section forming an inclined ramp along which the support is in the position of penetration into the bath.
  • the object support and therefore the object tilt when entering the bath so that the object gradually penetrates in the bath.
  • the guide path is rectilinear along the frame, the frame being articulated by its lower end around an axis on a fixed base and coupled to establishment means and adjusting its inclination around the axis of articulation.
  • This device comprises a tank 2 of a washer or a stripper, etc. with or without ultrasound containing a treatment bath 3.
  • the device also comprises a frame 4 extending in a vertical direction disposed near the tank, a support 5 for the object to be treated 6 and drive means (not shown ) of the support relative to the frame.
  • the support is mounted articulated in a vertical plane on a carriage 7 sliding on slides 8 coupled to the frame.
  • the device further comprises pivoting actuation means 9 arranged between the carriage 7 and the support 5.
  • the support 5 is constituted by a metal box of substantially "L" shape comprising in its upper part an articulation 10 allowing the support 5 to pivot relative to the chassis of the carriage 7. And in its lower part a receiving axis 11 of the object to be treated 6 is mounted rotating in bearings 12 of the support 5 and is connected for example by means of a chain-sprocket transmission to the output shaft of a motor M fixed inside the upper part of the box.
  • This receiving axis 11 extends in a substantially horizontal overhang in a loading position of the object to be treated 6 (in solid lines in the figure).
  • the object to be treated 6 is constituted by a long tubular piece, for example a rotary stencil.
  • This tubular piece is threaded over its entire length, on the receiving axis 11 and abuts by one end against a first fixed flange 13 disposed near the support 5 and is held in position by a second flange 14 applied to the other end of the part to be treated and immobilized in translation on the axis 11 by a stop screw 15.
  • flanges 13, 14 have on their facing faces a series of stepped shoulders to allow the attachment of tubular parts of different diameters.
  • These flanges which are schematically represented, may include elastic or pneumatic fixing accessories making it possible to tension the tubular object circumferentially and / or axially.
  • FIGs 2, 3 and 4 are illustrated different configurations of pivoting actuation means 9 constituted by jacks.
  • the jacks 17, 18 and 19 are coupled by one end to the chassis of the carriage 7 and by another end to a support plate 20 secured to the support (FIGS. 2 and 3) or by means of two lever arms 21, 22 ( Figure 4).
  • the jack 17 used in the embodiment of Figure 2 is a screw jack actuated for example by an electric motor fixed on the carriage (not shown).
  • the jacks 18, 19 used in the embodiments illustrated in Figures 3 and 4 are hydraulic or pneumatic jacks conventionally controlled by distributors (not shown).
  • the support plate 20 is fixed inside the lower part of the support 5 and the jacks pass through a recess 23 provided for this purpose in the wall 24 of the support, arranged opposite the chassis of the carriage.
  • FIG. 5 is shown another embodiment of the means of pivoting actuation 9 of the support 5 relative to the carriage constituted by a deformable parallelogram 25 actuated by an inverted pitch screw 26 connected to suitable drive means for example an electric motor 11 disposed in the box of the support 5.
  • This parallelogram is coupled by two opposite ends, to the chassis of the carriage 7 on the one hand, and to the support plate 20 secured to the support 5, on the other hand.
  • FIG. 6 shows another embodiment of the pivoting actuation means 9.
  • the actuation means consist of a cam 27 rotatably mounted on a yoke 28 integral with the carriage 7, the top of the cam cooperating with one face of the support plate 20 secured to the support 5, the cam being driven in a rotational movement, for example by an electric motor.
  • the person skilled in the art may have the articulation 10 between the carriage 7 and the support 5 so that the inclination takes place downwards.
  • FIG. 7 illustrates an embodiment of the pivoting actuation means comprising a follower roller 29 integral with the lower part of the support 5 sliding along a guide path 30 associated with the vertical slides 8 along which slides the carriage 7.
  • This guide path 30 associated with the slides comprises at least one section along which the carriage-support assembly moves in a position for loading the object and at least one inclined ramp 31 along which the articulated support 5 can tilt when the follower roller moves on the latter.
  • pivoting actuation means comprising, for example, a step-by-step electric motor directly engaged on the articulation 10, or even to replace the actuators of the actuation means described above by a toothed wheel system. rack.
  • the support of the object makes integral part of the carriage 7.
  • the means for actuating the support in pivoting are external to the latter.
  • the actuating means comprise a guide path 32 along which slides the carriage-support assembly 7; 5. This guide path 32 extends vertically and is coupled to the frame 4. It will be noted in passing that in this embodiment, the frame 4 is mounted for manufacturing reasons, inside the tank.
  • the guide path 32 comprises on the one hand a section 32 a along which the carriage-support assembly 7; 5 moves to a loading position, and further comprises an inclined ramp 32 b along which the carriage-support assembly 7; 5 moves to a position of penetration and immersion in the bath.
  • FIG. 9 illustrates a final embodiment of the device according to the invention in which the same numerical references designate the same parts described above.
  • the object support is an integral part of the carriage 7 which slides along the slides 8 secured to the frame 4.
  • the frame 4, with the slides 8 is articulated by its end lower part, around an axis 34 carried by a yoke 36 secured to a fixed base 35.
  • the axis is perpendicular to the direction of movement of the support-carriage 5 assembly; 7 and substantially orthogonal to the axis 11 of the support 5.
  • This device also comprises pivoting actuation means 32 constituted for example by a jack coupled on the one hand to the frame 4, 8 and on the other hand, to the base fixed 35 preferably at a point distant from the joint 34, 26 to establish and maintain the inclination of the frame 4 desired for the inclined penetration of the object into the bath.
  • pivoting actuation means 32 constituted for example by a jack coupled on the one hand to the frame 4, 8 and on the other hand, to the base fixed 35 preferably at a point distant from the joint 34, 26 to establish and maintain the inclination of the frame 4 desired for the inclined penetration of the object into the bath.
  • the invention is not limited to the embodiments described and it is possible to make alternative embodiments without departing from its scope.
  • provision may be made to treat parts having fragile external surfaces of different shapes, for example a frame; it is also possible to provide between the frame 4 and the tank 3 actuation means 33 in alternating movement of small amplitude of the frame relative to the tank 2 ( Figure 1) or of the tank relative to the frame in order to animate the submerged parts to be treated with a reciprocating movement of small amplitude with respect to the bath, and in particular with respect to the ultrasonic radiation and thus improve the effects of the treatment on the part.
  • the immersion treatment device according to the invention which is shown diagrammatically in FIGS. 1 and 8 and 9, is used as follows:
  • the device 1 is loaded with a tubular part to be treated 6, for example a rotary stencil.
  • the stencil is threaded manually or, if necessary, automatically onto the receiving axis 11 of the support 5 of the object then is fixed on the axis while the latter occupies a horizontal position above the bath 3.
  • the work is then lowered from the workpiece to the bath, communicating an inclination of a few degrees upwards to the object support (see Figures 1, 8,9) intermediate of the pivoting actuation means 9, 32, 37 described above.
  • the part then enters the bath 3 at one end until it is completely immersed, then it undergoes its treatment.
  • the workpiece can be arranged either in a horizontal position or in an inclined position.
  • the rotation of the part can be kept, in order to standardize its treatment.
  • the part is raised by tilting it beforehand as was done previously during the phase of penetration of the part into the bath, so as to evacuate the liquid remaining in the part. when it emerges.
  • the support 5 is finally disposed in its initial position in order to unload the treated part and to be able to start a new cycle with another part.
  • All of these operations can be carried out using manual commands or using automatic commands managed for example by a conventional programmable controller.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Coating Apparatus (AREA)
EP89401178A 1988-04-28 1989-04-25 Vorrichtung zur Eintauchbehandlung eines rohrförmigen Gegenstandes, der eine äussere zerkratzbare Oberfläche aufweisst in einem Becken Withdrawn EP0340104A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8805693 1988-04-28
FR8805693A FR2630665B1 (fr) 1988-04-28 1988-04-28 Dispositif de traitement par immersion dans un bain d'un objet tubulaire presentant une surface exterieure fragile

Publications (1)

Publication Number Publication Date
EP0340104A1 true EP0340104A1 (de) 1989-11-02

Family

ID=9365789

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401178A Withdrawn EP0340104A1 (de) 1988-04-28 1989-04-25 Vorrichtung zur Eintauchbehandlung eines rohrförmigen Gegenstandes, der eine äussere zerkratzbare Oberfläche aufweisst in einem Becken

Country Status (2)

Country Link
EP (1) EP0340104A1 (de)
FR (1) FR2630665B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118944A1 (de) * 1991-06-08 1992-12-10 Ind Siebdruck Systeme Neckarwe Reinigungsvorrichtung fuer druckmasken
EP0903230A2 (de) * 1997-07-31 1999-03-24 Kissel & Wolf GmbH Verfahren und Vorrichtung zur Entfernung von Schablonenbeschichtungen auf Siebdruckformen
CN102941180A (zh) * 2012-11-30 2013-02-27 成都易态科技有限公司 外滤滤管卧式旋转浸膜装置及系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1561975A (de) * 1966-12-09 1969-04-04
FR2397940A1 (fr) * 1977-07-18 1979-02-16 Whiteley Ltd E Gordon Appareil de nettoyage des pochoirs cylindriques d'impression

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE421020A (de) *

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1561975A (de) * 1966-12-09 1969-04-04
FR2397940A1 (fr) * 1977-07-18 1979-02-16 Whiteley Ltd E Gordon Appareil de nettoyage des pochoirs cylindriques d'impression

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118944A1 (de) * 1991-06-08 1992-12-10 Ind Siebdruck Systeme Neckarwe Reinigungsvorrichtung fuer druckmasken
EP0903230A2 (de) * 1997-07-31 1999-03-24 Kissel & Wolf GmbH Verfahren und Vorrichtung zur Entfernung von Schablonenbeschichtungen auf Siebdruckformen
EP0903230A3 (de) * 1997-07-31 1999-10-27 Kissel & Wolf GmbH Verfahren und Vorrichtung zur Entfernung von Schablonenbeschichtungen auf Siebdruckformen
CN102941180A (zh) * 2012-11-30 2013-02-27 成都易态科技有限公司 外滤滤管卧式旋转浸膜装置及系统
CN102941180B (zh) * 2012-11-30 2015-10-07 成都易态科技有限公司 外滤滤管卧式旋转浸膜装置及系统

Also Published As

Publication number Publication date
FR2630665B1 (fr) 1990-08-03
FR2630665A1 (fr) 1989-11-03

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