EP0418672A2 - Device for cleaning cylindrical screens - Google Patents

Device for cleaning cylindrical screens Download PDF

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Publication number
EP0418672A2
EP0418672A2 EP90117283A EP90117283A EP0418672A2 EP 0418672 A2 EP0418672 A2 EP 0418672A2 EP 90117283 A EP90117283 A EP 90117283A EP 90117283 A EP90117283 A EP 90117283A EP 0418672 A2 EP0418672 A2 EP 0418672A2
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EP
European Patent Office
Prior art keywords
cleaning
trough
horizontal
tub
cylindrical
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Withdrawn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
EP90117283A
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German (de)
French (fr)
Other versions
EP0418672A3 (en
Inventor
Johannes Zimmer
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0418672A2 publication Critical patent/EP0418672A2/en
Publication of EP0418672A3 publication Critical patent/EP0418672A3/en
Withdrawn legal-status Critical Current

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    • 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
    • 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

Definitions

  • the invention relates to a device for cleaning cylindrical stencils with two cylindrical cleaning brushes rotatably mounted in a tub, on which the stencil rests in a position inclined to the horizontal during the cleaning process.
  • a group is characterized by a vertical wash box.
  • the stencil to be cleaned is brought into this by pulling it over an initially horizontal spray tube and swiveling it up together with it and enclosing it in the cleaning container.
  • the second group of known stencil washing devices has the features outlined above.
  • the advantage of these devices is that the sensitive stencils are supported over their entire length, so that damage during the washing process hardly occurs.
  • the disadvantage is that the inclination of the cleaning brushes or the stencils to be cleaned is very limited is when the stencils are to be inserted into the device and removed by an operator standing on the floor.
  • the invention is based on the object on the one hand to support the template in operation by rotating cylinder brushes, on the other hand a significant oblique inclination in the range of 20 o - o 60 to reach at least in the final stages of processing. With such an inclined position, not only could paint residues drain away more easily, but it would also be avoided that liquid residues would accumulate in the area of the lower end ring and have to be removed after the actual cleaning process.
  • the object is achieved in that the trough carrying the cleaning brushes is pivotally mounted about a horizontal axis.
  • Essential components of the device shown are (e.g. from AT-PS 284 169) known two cleaning brushes 1, 2, on which a stencil 11 to be cleaned rests.
  • a spray tube 4 is used to clean the interior of the template 11 and is attached to a closed end 9 (left end according to FIGS. 1 and 2) of a trough 3 carrying the cleaning brushes 1, 2.
  • the other end 10 of the tub 3 facing the end of the spray tube 4 is free so that the template 11 can be pulled over the spray tube 4.
  • the pivotable arrangement of the tub 3 makes it possible to insert the template 11 into the device while the tub 3 is in the horizontal position shown in FIG. 1.
  • the pivot axis 8 is located relatively close to the closed end 9 of the tub 3.
  • the cleaning liquid is supplied in a manner not shown from the end 9 of the tub 3 through the spray tube 4 and possibly by means of further spray tubes provided on the outside of the template 11 in a known manner.
  • the drive of the cleaning brushes 1, 2, which is also not shown, is advantageously only switched on when the paint accumulations in the lower area of the stencil 11 near the brush have been eliminated.
  • the entire cleaning process including the rotation and external cleaning of the template 11 by the brushes 1, 2 rotating at different speeds, can already start while the tub 3 is being swung up.
  • the template can be air-dried, for example.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

Beschrieben wird eine Vorrichtung zur Reinigung zylindrischer Schablonen mit zwei in einer Wanne drehbar gelagerten zylindrischen Reinigungsbürsten, auf denen die Schablone während des Reinigungsvorganges in zur Horizontalen geneigter Lage aufliegt, wobei die die Reinigungsbürsten (1,2) tragende Wanne (3) um eine horizontale Achse (8) schwenkbar gelagert ist.The invention relates to a device for cleaning cylindrical stencils with two cylindrical cleaning brushes rotatably mounted in a trough, on which the stencil rests in a position inclined to the horizontal during the cleaning process, the trough (3) carrying the cleaning brushes (1, 2) about a horizontal axis (8) is pivotally mounted.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Rei­nigung zylindrischer Schablonen mit zwei in einer Wanne drehbar gelagerten zylindrischen Reinigungsbürsten, auf denen die Schablone während des Reinigungsvorganges in zur Horizontalen geneigter Lage aufliegt.The invention relates to a device for cleaning cylindrical stencils with two cylindrical cleaning brushes rotatably mounted in a tub, on which the stencil rests in a position inclined to the horizontal during the cleaning process.

Einrichtungen zur Reinigung von zylindrischen Schablo­nen, wie sie insbesondere im Textildruck verwendet wer­den, unterscheiden sich in zwei große Gruppen.Facilities for cleaning cylindrical stencils, as are used in particular in textile printing, are divided into two large groups.

Eine Gruppe ist durch einen lotrecht stehenden Wasch­kasten charakterisiert. In diesen wird die zu reinigende Schablone gebracht, indem sie über ein zunächst horizon­tal verlaufendes Spritzrohr gezogen und gemeinsam mit diesem hochgeschwenkt und im Reinigungsbehälter einge­schlossen wird.A group is characterized by a vertical wash box. The stencil to be cleaned is brought into this by pulling it over an initially horizontal spray tube and swiveling it up together with it and enclosing it in the cleaning container.

Vorteilhaft an derartigen Einrichtungen ist vor allem ihr geringer Platzbedarf. Nachteilig ist, daß nur rela­tiv kurze Schablonen ohne Abstützung hochgeschwenkt oder bearbeitet werden können. Im wesentlichen ist die Bear­beitung auf ein Abspritzen der Innen- und der Außenseite der Schablone beschränkt, auch wenn ausnahmsweise be­reits die Verwendung einer Ringbürste für Schablonen ein­heitlichen Durchmessers vorgeschlagen worden ist.What is particularly advantageous about such devices is their small space requirement. The disadvantage is that only relatively short stencils can be swung up or processed without support. Processing is essentially limited to spraying off the inside and outside of the template, even if the use of a ring brush for templates of uniform diameter has already been proposed as an exception.

Die zweite Gruppe bekannter Schablonenwascheinrichtungen weist die eingangs skizzierten Merkmale auf. Der Vorteil dieser Einrichtungen liegt darin, daß die empfindlichen Schablonen über ihre ganze Länge unterstutzt sind, so daß Beschädigungen beim Waschvorgang kaum vorkommen. Nachteilig ist, daß die Schrägneigung der Reinigungsbür­sten bzw. der zu reinigenden Schablonen sehr beschränkt ist, wenn die Einführung der Schablonen in die Einrich­tung und deren Entfernung von einer auf dem Boden stehen­den Bedienungsperson vorgenommen werden soll.The second group of known stencil washing devices has the features outlined above. The advantage of these devices is that the sensitive stencils are supported over their entire length, so that damage during the washing process hardly occurs. The disadvantage is that the inclination of the cleaning brushes or the stencils to be cleaned is very limited is when the stencils are to be inserted into the device and removed by an operator standing on the floor.

Der Erfindung liegt die Aufgabe zugrunde, einerseits die Schablone beim Arbeitsvorgang durch rotierende Zylinder­bursten zu unterstützen, andererseits aber eine erhebli­che Schragneigung im Bereich von 20o - 60o zumindestens in der Endphase der Bearbeitung zu erreichen. Bei einer derartigen Schrägstellung konnten nicht nur Farbreste leichter abfließen, sondern es würde auch vermieden, daß sich im Bereich des unteren Endringes Flüssigkeitsreste ansammeln, die nach dem eigentlichen Reinigungsvorgang entfernt werden müssen.The invention is based on the object on the one hand to support the template in operation by rotating cylinder brushes, on the other hand a significant oblique inclination in the range of 20 o - o 60 to reach at least in the final stages of processing. With such an inclined position, not only could paint residues drain away more easily, but it would also be avoided that liquid residues would accumulate in the area of the lower end ring and have to be removed after the actual cleaning process.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß die die Reinigungsbürsten tragende Wanne um eine horizontale Achse schwenkbar gelagert ist.According to the invention the object is achieved in that the trough carrying the cleaning brushes is pivotally mounted about a horizontal axis.

Beim Waschen in Senkrecht-Anordnung geht die gesamte Auf- und Abschwenkzeit für den Reinigungsvorgang verlo­ren. Der Schwenkvorgang muß daher mit größtmöglicher Be­schleunigung zustandegebracht werden, was erheblich mehr Konstruktionsaufwand erfordert. Dadurch bedingt, daß der Vorgang des Siebzylinder- bzw. Schablonen-Waschens Teil eines komplexen Umrüstvorganges ist, soll aber die Reini­gungszeit sehr kurz sein; andernfalls entstehen Still­standzeiten einer sehr kostspieligen Produktionsanlage.When washing in a vertical arrangement, the entire pivoting time for the cleaning process is lost. The pivoting process must therefore be accomplished with the greatest possible acceleration, which requires considerably more design effort. Due to the fact that the process of screen cylinder or stencil washing is part of a complex changeover process, the cleaning time should be very short; otherwise there will be downtimes in a very expensive production plant.

Diesen Nachteil kann man im Rahmen der Erfindung durch geeignete Verfahrensführung vermeiden, indem bereits wäh­rend des Schwenkvorganges die Stützeinrichtung in Be­trieb genommen wird. Eine Verdrehung der Rundschablone mittels der schnell laufenden Zylinderbürsten soll aller­dings erst erfolgen, wenn sich keine größeren Farbansamm­lungen mehr in der Schablone befinden, welche (durch die Zylinderbursten) unterstützt werden müßten.This disadvantage can be avoided within the scope of the invention by means of a suitable procedure by putting the support device into operation already during the pivoting process. The circular stencil should only be rotated by means of the high-speed cylinder brushes when there are no longer any large accumulations of paint in the stencil, which should be supported (by the cylinder brushes).

Weitere Zweckmäßigkeiten, Ausführungsarten und Ausgestal­tungsbeispiele der Erfindung gehen aus den Unteransprü­chen sowie aus der im folgenden beschriebenen schemati­schen Zeichnung hervor. Es zeigen

  • Fig. 1 eine schematische Seitenansicht eines Ausführungsbeispieles in der Beladestel­lung,
  • Fig. 2 eine Seitenansicht der Einrichtung in Arbeitsstellung und
  • Fig. 3 einen Schnitt nach der Linie III-III der Fig. 1.
Further expediencies, embodiments and exemplary embodiments of the invention emerge from the subclaims and from the schematic drawing described below. Show it
  • 1 is a schematic side view of an embodiment in the loading position,
  • Fig. 2 is a side view of the device in the working position and
  • 3 shows a section along the line III-III of FIG. 1st

Wesentliche Bestandteile der dargestellten Einrichtung sind (z.B. aus der AT-PS 284 169) bekannte zwei Reini­gungsbürsten 1,2, auf denen eine zu reinigende Schablone 11 aufliegt. Zur Reinigung des Inneren der Schablone 11 dient ein Spritzrohr 4, das an einem geschlossenen Ende 9 (linkes Ende gem. Fig. 1 und 2) einer die Reinigungs­bursten 1,2 tragenden Wanne 3 befestigt ist. Das dem an­deren Ende 10 der Wanne 3 zugewandte Ende des Spritzroh­res 4 ist frei, damit die Schablone 11 über das Spritz­rohr 4 gezogen werden kann.Essential components of the device shown are (e.g. from AT-PS 284 169) known two cleaning brushes 1, 2, on which a stencil 11 to be cleaned rests. A spray tube 4 is used to clean the interior of the template 11 and is attached to a closed end 9 (left end according to FIGS. 1 and 2) of a trough 3 carrying the cleaning brushes 1, 2. The other end 10 of the tub 3 facing the end of the spray tube 4 is free so that the template 11 can be pulled over the spray tube 4.

Neu an der dargestellten Einrichtung ist der Vorschlag, die Wanne 3 auf einem Lagerbock 5 um eine Achse 8 schwenkbar anzuordnen. Die Schwenkung erfolgt mittels eines Antriebs 6, der auf eine Hydraulikeinheit 7 ein­wirkt.New to the device shown is the proposal to arrange the tub 3 on a pedestal 5 pivotable about an axis 8. The pivoting takes place by means of a drive 6, which acts on a hydraulic unit 7.

Durch die schwenkbare Anordnung der Wanne 3 ist es mög­lich, die Schablone 11 in die Einrichtung einzuführen, wahrend sich die Wanne 3 in der in Fig. 1 dargestellten horizontalen Lage befindet. Um den Lagerbock 5 niedrig halten zu können, befindet sich die Schwenkachse 8 rela­tiv nahe zum geschlossenen Ende 9 der Wanne 3.The pivotable arrangement of the tub 3 makes it possible to insert the template 11 into the device while the tub 3 is in the horizontal position shown in FIG. 1. In order to keep the bearing block 5 low, the pivot axis 8 is located relatively close to the closed end 9 of the tub 3.

Durch das Hochschwenken der Anordnung in die Lage nach Fig. 2 wird ein einwandfreies Abfließen von Farbresten und Reinigungsflüssigkeit gewährleistet. Die Zufuhr der Reinigungsflüssigkeit erfolgt hierbei in nicht darge­stellter Weise vom Ende 9 der Wanne 3 aus durch das Spritzrohr 4 und allenfalls mittels weiterer in bekann­ter Weise an der Außenseite der Schablone 11 vorgesehe­ner Spritzrohre. Der ebenfalls nicht dargestellte An­trieb der Reinigungsbürsten 1,2 wird in vorteilhafter Weise erst eingeschaltet, wenn die Farbansammlungen im unteren bürstennahen Bereich der Schablone 11 beseitigt sind. Der gesamte Reinigungsvorgang einschließlich der Drehung und äußeren Reinigung der Schablone 11 durch die mit verschiedener Geschwindigkeit rotierenden Bürsten 1,2 kann jedoch bereits beginnen, während die Wanne 3 hochgeschwenkt wird. Während des Herunterschwenkens der Wanne wird vorzugsweise allerdings kein weiteres Reini­gungswasser zugeführt, um Wasseransammlungen im Bereich des unteren Endringes der Schablone 11 zu vermeiden. Wäh­rend des Niederschwenkens kann aber zum Beispiel eine Lufttrocknung der Schablone erfolgen.Swiveling the arrangement up into the position according to FIG. 2 ensures that paint residues and cleaning fluid run off properly. The cleaning liquid is supplied in a manner not shown from the end 9 of the tub 3 through the spray tube 4 and possibly by means of further spray tubes provided on the outside of the template 11 in a known manner. The drive of the cleaning brushes 1, 2, which is also not shown, is advantageously only switched on when the paint accumulations in the lower area of the stencil 11 near the brush have been eliminated. However, the entire cleaning process, including the rotation and external cleaning of the template 11 by the brushes 1, 2 rotating at different speeds, can already start while the tub 3 is being swung up. During the swiveling down of the tub, however, no further cleaning water is preferably supplied in order to avoid water accumulations in the region of the lower end ring of the template 11. During the swiveling down, however, the template can be air-dried, for example.

Claims (4)

1. Vorrichtung zur Reinigung zylindrischer Schablonen mit zwei in einer Wanne drehbar gelagerten zylindri­schen Reinigungsbursten, auf denen die Schablone wahrend des Reinigungsvorganges in zur Horizontalen geneigter Lage aufliegt, dadurch ge­kennzeichnet, daß die die Reinigungs­bürsten (1,2) tragende Wanne (3) um eine horizonta­le Achse (8) schwenkbar gelagert ist.1. Device for cleaning cylindrical stencils with two cylindrical cleaning brushes rotatably mounted in a tub, on which the template rests during the cleaning process in a position inclined to the horizontal, characterized in that the tub (3) carrying the cleaning brushes (1, 2) has a horizontal axis (8) is pivotally mounted. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Achse (8) von den Enden der Wanne (3) verschiedenen Abstand hat.2. Device according to claim 1, characterized in that the axis (8) from the ends of the trough (3) has a different distance. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Achse (8) auf einem Lagerbock (5) vorgesehen ist, der eine Verschwenkung der Wanne (3) aus einer horizontalen Aufnahmestellung in eine unter mindestens 20o, vorzugsweise unter 45o, zur Horizontalen geneigte Arbeitsstellung erlaubt.3. Apparatus according to claim 1 or 2, characterized in that the axis (8) on a bearing block (5) is provided, which pivots the trough (3) from a horizontal receiving position into at least 20 o , preferably under 45 o , working position inclined to the horizontal allowed. 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß ein in an sich bekannter Weise an einem Ende der Wanne (3) befestigtes Spritzrohr (4) auch mit Reini­gungsflüssigkeit beschickbar ist, während der zur Schwenkung der Wanne (3) vorgesehene Antrieb (6) in Betrieb ist.4. Device according to one of claims 1 to 3, characterized in that a spray tube (4) fastened in a manner known per se to one end of the trough (3) can also be charged with cleaning liquid, while that provided for pivoting the trough (3) Drive (6) is in operation.
EP19900117283 1989-09-19 1990-09-07 Device for cleaning cylindrical screens Withdrawn EP0418672A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8911282U DE8911282U1 (en) 1989-09-19 1989-09-19 Device for cleaning cylindrical stencils
DE8911282U 1989-09-19

Publications (2)

Publication Number Publication Date
EP0418672A2 true EP0418672A2 (en) 1991-03-27
EP0418672A3 EP0418672A3 (en) 1991-09-04

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EP19900117283 Withdrawn EP0418672A3 (en) 1989-09-19 1990-09-07 Device for cleaning cylindrical screens

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US (1) US5035177A (en)
EP (1) EP0418672A3 (en)
DE (1) DE8911282U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5762649A (en) * 1994-12-12 1998-06-09 J. Zimmer Maschinenbau Gesellschaft M.B.H. Storage apparatus for round stencils

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7134389B2 (en) * 2002-02-22 2006-11-14 Minami Co., Ltd. Screen printing apparatus
CN107813601A (en) * 2016-09-10 2018-03-20 湖北际华新四五印染有限公司 A kind of guide belt of decorating machine windshield wiper device
CN111890796B (en) * 2020-08-27 2022-06-07 佛山科学技术学院 Ceramic tile silk screen printing machine mesh washs adsorption equipment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1780232U (en) * 1958-09-03 1958-12-31 Erich Weber SCREEN PRINTED STENCIL CLEANING SYSTEM.
CH490899A (en) * 1969-06-11 1970-05-31 Buser Ag Maschf Fritz Device for cleaning hollow cylinders
AT284169B (en) * 1966-12-09 1970-09-10 Stork & Co Nv Device for the internal and external cleaning of a tubular object
GB1522069A (en) * 1975-10-01 1978-08-23 Mecc Nassetti Sas Off Cleaning devices
AT360949B (en) * 1975-10-03 1981-02-10 Zimmer Johannes RUNNING TEMPLATE WASHING DEVICE
FR2557027A1 (en) * 1983-11-18 1985-06-28 Martins Jose Automatic screen washer for screen printing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT325640B (en) * 1973-11-09 1975-10-27 Zimmer Johannes WASHING DEVICE FOR CLEANING ROUND STENCILS
AT335961B (en) * 1973-12-28 1977-04-12 Zimmer Peter DEVICE FOR CLEANING A SCREEN PRINTING ROTATION STENCIL
NL188425C (en) * 1977-01-19 1992-06-16 Stork Brabant Bv MACHINE AND METHOD FOR FLUSHING THIN-WALLED CASES.
DE2914453C2 (en) * 1979-04-10 1983-10-13 Eberhard 8501 Oberasbach Lendle Method and device for decoating a screen printing form
DE3017180A1 (en) * 1980-05-05 1981-11-12 Erich 8000 München Weber Layer remover for reclaiming screen-printing patterns - sprays liquid onto pattern from set of moving nozzles
DD243575A1 (en) * 1985-12-16 1987-03-04 Textima Veb K METHOD AND DEVICE FOR REGENERATING SIEVE TISSUE

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1780232U (en) * 1958-09-03 1958-12-31 Erich Weber SCREEN PRINTED STENCIL CLEANING SYSTEM.
AT284169B (en) * 1966-12-09 1970-09-10 Stork & Co Nv Device for the internal and external cleaning of a tubular object
CH490899A (en) * 1969-06-11 1970-05-31 Buser Ag Maschf Fritz Device for cleaning hollow cylinders
GB1522069A (en) * 1975-10-01 1978-08-23 Mecc Nassetti Sas Off Cleaning devices
AT360949B (en) * 1975-10-03 1981-02-10 Zimmer Johannes RUNNING TEMPLATE WASHING DEVICE
FR2557027A1 (en) * 1983-11-18 1985-06-28 Martins Jose Automatic screen washer for screen printing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5762649A (en) * 1994-12-12 1998-06-09 J. Zimmer Maschinenbau Gesellschaft M.B.H. Storage apparatus for round stencils

Also Published As

Publication number Publication date
DE8911282U1 (en) 1991-01-24
EP0418672A3 (en) 1991-09-04
US5035177A (en) 1991-07-30

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