WO1991015370A1 - Dispositif de nettoyage de pochoirs de serigraphie - Google Patents

Dispositif de nettoyage de pochoirs de serigraphie Download PDF

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Publication number
WO1991015370A1
WO1991015370A1 PCT/EP1991/000623 EP9100623W WO9115370A1 WO 1991015370 A1 WO1991015370 A1 WO 1991015370A1 EP 9100623 W EP9100623 W EP 9100623W WO 9115370 A1 WO9115370 A1 WO 9115370A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning
container
solvent
cleaning device
cleaning container
Prior art date
Application number
PCT/EP1991/000623
Other languages
German (de)
English (en)
Inventor
Alois Egger
Original Assignee
Alois Egger
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 Alois Egger filed Critical Alois Egger
Publication of WO1991015370A1 publication Critical patent/WO1991015370A1/fr

Links

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
    • 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
    • B08B3/02—Cleaning by the force of jets or sprays
    • 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
    • B41P2235/30—Recovering used solvents or residues
    • B41P2235/31—Recovering used solvents or residues by filtering

Definitions

  • the invention relates to a cleaning device for screen printing stencils u. Like. According to the preamble of claim 1.
  • Such cleaning containers are used for cleaning large-scale stencils after the screen printing process in order to remove the adhering printing ink.
  • JP-58-13 25 62 (A) in Patent Abstracts of Japan -253 November 2, 1983, Vol. 7 / No. 246 discloses a cleaning device of the aforementioned type, in which a single template is pushed through a hermetically sealed cleaning container through a sealed inlet or outlet slot. The paint sludge settles in the lower part of the container or partially flows into the solvent tank.
  • DE 27 37 420 A discloses a large horizontal trough into which solvent is pumped from a tank by means of a pump and thrown there by means of several rotors against a stencil placed thereon.
  • a bowl 38 covering the entire bottom of the tank is intended to receive paint sludge.
  • the bottom tray can only be removed when the tank is empty or at least almost empty.
  • the German utility model G 17 80 232 discloses a very flat cleaning container for only a single template. The spraying takes place in the horizontal position of the container; then this is placed in an inclined position so that the solvent containing the paint flows through a hose into a solvent tank and is pumped back to the spraying devices.
  • REPLACEMENT LEAF The device is space-consuming and the swivel mechanism makes the arrangement more expensive and increases its susceptibility to failure.
  • the invention has for its object to provide a cleaning device for screen printing stencils or the like. Which is extremely compact in construction and enables simultaneous cleaning of several stencils with high utilization of the solvent and simple maintenance. In a further development, a health hazard is to be avoided and a cleaning device is to be made more versatile in such a way that it is also possible to clean other objects which occur when printing.
  • the cleaning device according to the invention has the features of claim 1.
  • the stencils are placed in the cleaning container, several stencils can be inserted into a relatively narrow container at the same time, the shape of which can be very different.
  • the detached paint runs off automatically, so that no tilting of the container is required.
  • a hose connection to the solvent tank is not necessary, since the drain of the container leads directly to the tank and in particular to the filter with the overflow principle, which takes up only a small part of the very flat tank and can be removed through the opening without emptying the tank.
  • the hermetic closure of the lid and in particular its locking certainly prevent a health hazard.
  • the squeegee sink integrated into the cleaning device increases the versatility of the cleaning device.
  • Fig. 1 is a perspective view of the cleaning device of the embodiment
  • Fig. 2 is a sectional side view through the cleaning device and Fig. 3 is a detailed view of the lid of the
  • Fig. 1 shows a perspective view of a cleaning device 110 with a box-shaped cleaning container 1 for receiving a plurality of screen printing stencils 3 to be cleaned (see FIG. 2), which are placed in the cleaning container 1 and by a spray device 2, here a plurality of nozzle bars which can be arranged primarily on both sides in the stencils 3, sprayed with solvent.
  • the cleaning container 1 is made of corrosion-resistant material and adapted to the size of the stencils 3 used, smaller stencils 3 being held by U-shaped brackets 3a.
  • the stencils 3 are set up approximately vertically or at a small angle to the vertical in the cleaning container 1, this can have a relatively small width, the height corresponding to the largest stencils 3 to be cleaned. In particular, a width of approximately 30 to 70 cm, preferably 40 to 60 cm, is entirely sufficient.
  • the solvent tank primarily has such a horizontal dimensioning that it takes up the entire base area of the container 1.
  • the tank 5 is integrated into the container 1 in that an intermediate base 5a is drawn in at a height of approximately 10 to 20 cm from the bottom of the container 1.
  • the solvent runs off via an outlet 4 provided at the bottom 5a of the cleaning container 1 to a solvent tank 5 and collects there.
  • the solvent is passed through a filter 6 Pump 7, which is driven by a flange-mounted motor 7a and returned to the spraying device 2 via a pipe connection 9.
  • the relatively small amount of solvent in the solvent tank 5 is circulated partially or several times.
  • a coarse filter 12 is provided between the drain 4 and the solvent tank 5, which, according to the overflow principle, has raised side walls, via which, according to the arrows shown, the solvent when the coarse filter 12 is filled, possibly in several stages can overflow.
  • the coarse filter 12 is preferably arranged at a short distance from the bottom of the solvent tank 5.
  • the heavier ink lowers at the bottom of the coarse filter 12 in the manner of a sludge trap, so that the solvent can be used longer.
  • the color sludge that accumulates in the coarse filter 12 can be emptied from time to time through a cleaning opening 13 in the top wall of the solvent tank 5, which preferably projects forward by about 30 to 60 cm.
  • the circulation pump 7 and the filter 6 are covered by an orifice 15 arranged in FIG. 1 on the front side of the cleaning container. Behind the aperture 15, the filter 6 interposed between the circulating pump 7 and the solvent tank 5 is also easily accessible from above. In this case, a plurality of filters 6 can also be provided in the intake line of the circulating pump 7, as is indicated in FIG. 1 by a filter 6 shown in broken lines. Behind the panel 15 there is also a switch box 18 necessary for the motor 7a. In addition, a stand 19 can be provided in front of the panel 15, particularly in the case of large-format cleaning containers 1.
  • the stencils 3 can be removed from the cleaning container 1 through an upper lid 1 a. for example 30 seconds, still closed after the spraying process has ended remains. This not only significantly reduces solvent emissions but also solvent evaporation.
  • a solvent branch 9a is provided on the pipe connection 9 and leads via a shut-off valve 10 to a wash basin 11 provided on the front of the cleaning container 1.
  • Smaller auxiliary devices such as squeegees or the like which are required during the printing process can be cleaned therein.
  • the solvent flowing out of the squeegee washbasin 11 returns to the cleaning container 1 via an outlet 11a. This arrangement ensures that the smaller doctor blades u. The like. Are easily accessible in the sink 11 and at the same time as the spraying process in the cleaning container 1 flows around through the solvent branch 9a and are thereby cleaned.
  • the arrangement of the circulating pump 7 and the squeegee wash basin 11 next to one another on the front side wall 1b of the cleaning container 1 results in a very compact arrangement with short line lengths for the pipe connection 9.
  • spray devices 2 can also be provided, so that cleaning of smaller printing utensils for pad printing or other printing processes can be made.
  • the wash basin 11 preferably has a lid 11 b, which can optionally also be equipped with a time-controlled locking device 8.
  • a detail of the lid la is shown enlarged, which is here in the closed position.
  • a circumferential seal 14 is provided, which is arranged between the folds of the cover 1 a and the side wall 1 b.
  • a shielding plate 16 is provided on the inside of the cover la, which forms a labyrinth together with a further bend 17 on the side wall 1b, so that the direct spraying of the seal 14 is avoided, but on the other hand precipitating solvent down to the interior of the
  • REPLACEMENT LEAF Cleaning container 1 can run, as indicated by the arrow. This design protects the seal 14 and therefore has a longer service life, so that the escape of solvent vapors is reliably avoided.
  • this design contributes to the fact that the solvent in the cleaning container 1 is encapsulated as much as possible from the outside air and thus the emission of the solvent is very low due to the closed system. As a result, the task-related low emissions and a significantly lower solvent consumption are achieved.
  • the cleaning container described is extremely simple and compact, so that the cleaning container is particularly suitable for smaller printing companies.
  • the multiple circulation of solvent enables extremely effective cleaning of even heavily soiled screen printing stencils.

Abstract

Un dispositif de nettoyage (110) de pochoirs de sérigraphie comprend un récipient de nettoyage (1) hermétiquement fermé par rapport à l'extérieur et une cuve de solvant (5) reliée au vaporisateur (2) agencé dans le récipient de nettoyage (1) par un filtre (6) et une pompe de circulation (7). La cuve de solvant (5) est intégrée sous le récipient de nettoyage (1) et son filtre (12) fonctionne selon le principe de débordement.
PCT/EP1991/000623 1990-04-03 1991-04-02 Dispositif de nettoyage de pochoirs de serigraphie WO1991015370A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4010679.9 1990-04-03
DE19904010679 DE4010679C2 (de) 1990-04-03 1990-04-03 Reinigungsvorrichtung für Siebdruckschablonen und Zubehör

Publications (1)

Publication Number Publication Date
WO1991015370A1 true WO1991015370A1 (fr) 1991-10-17

Family

ID=6403642

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/000623 WO1991015370A1 (fr) 1990-04-03 1991-04-02 Dispositif de nettoyage de pochoirs de serigraphie

Country Status (3)

Country Link
EP (1) EP0474830A1 (fr)
DE (1) DE4010679C2 (fr)
WO (1) WO1991015370A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024492A1 (fr) * 1995-02-07 1996-08-15 Intercontinental Chemical Corporation Appareil de nettoyage de trame d'impression a oscillateur
US5685326A (en) * 1995-10-24 1997-11-11 Intercontinental Chemical Corporation Oscillator screen cleaning apparatus and method
US5769956A (en) * 1995-02-07 1998-06-23 Intercontinental Chemical Corporation Method for cleaning a screen by spraying and moving in a repeated continuous oscillating motion
US6174382B1 (en) 1997-08-08 2001-01-16 Intercontinental Chemical Corporation Low pressure-high volume water washoff apparatus and process for cleaning and reclaiming screens
CN111530838A (zh) * 2020-05-14 2020-08-14 安徽法雷特热交换科技有限公司 一种汽车发动机散热器的清洗装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19605058C2 (de) * 1996-02-12 1999-11-25 Ibg Monforts Gmbh & Co Waschmaschine zum Reinigen von Schablonen
FR2785558B1 (fr) * 1998-11-06 2001-01-12 Michel Pierre Bernard Bourdat Machine de nettoyage pour des plaques, notamment des pochoirs de serigraphie
WO2006037255A2 (fr) * 2004-10-07 2006-04-13 Elro (Holding) Ag Elements d'etancheite pour ustensiles de cuisson resistant a un nettoyeur haute pression et couvercle pour ustensile de cuisson
CN108528043A (zh) * 2017-01-10 2018-09-14 苏州国质信网络通讯有限公司 一种丝网版浸渍清洗装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017180A1 (de) * 1980-05-05 1981-11-12 Erich 8000 München Weber Vorrichtung zum behandeln, insbesondere zum entschichten von siebdruckschablonen
US4342326A (en) * 1981-01-30 1982-08-03 Meier Paul L High speed stripping apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1780232U (de) * 1958-09-03 1958-12-31 Erich Weber Siebdruck-schablonenreinigungsanlage.
DE2339906A1 (de) * 1973-08-07 1975-02-20 Licentia Gmbh Siebwaschanlage zum reinigen von sieben der siebdrucktechnik
GB1591370A (en) * 1976-08-28 1981-06-17 Jensen L K W Cleaning methods and apparatus
DE8012422U1 (de) * 1980-05-07 1981-06-11 Clausen, Hans, 4800 Bielefeld Vorrichtung zum auswaschen und zur entschichtung gebrauchter siebe von siebdruckschablonen mittels einer hochdruckwaschvorrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017180A1 (de) * 1980-05-05 1981-11-12 Erich 8000 München Weber Vorrichtung zum behandeln, insbesondere zum entschichten von siebdruckschablonen
US4342326A (en) * 1981-01-30 1982-08-03 Meier Paul L High speed stripping apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024492A1 (fr) * 1995-02-07 1996-08-15 Intercontinental Chemical Corporation Appareil de nettoyage de trame d'impression a oscillateur
US5769956A (en) * 1995-02-07 1998-06-23 Intercontinental Chemical Corporation Method for cleaning a screen by spraying and moving in a repeated continuous oscillating motion
US5685326A (en) * 1995-10-24 1997-11-11 Intercontinental Chemical Corporation Oscillator screen cleaning apparatus and method
US6174382B1 (en) 1997-08-08 2001-01-16 Intercontinental Chemical Corporation Low pressure-high volume water washoff apparatus and process for cleaning and reclaiming screens
CN111530838A (zh) * 2020-05-14 2020-08-14 安徽法雷特热交换科技有限公司 一种汽车发动机散热器的清洗装置

Also Published As

Publication number Publication date
DE4010679A1 (de) 1991-10-10
DE4010679C2 (de) 1994-06-01
EP0474830A1 (fr) 1992-03-18

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