WO2000029187A1 - Method and device for cleaning plastic components - Google Patents

Method and device for cleaning plastic components Download PDF

Info

Publication number
WO2000029187A1
WO2000029187A1 PCT/DE1999/003600 DE9903600W WO0029187A1 WO 2000029187 A1 WO2000029187 A1 WO 2000029187A1 DE 9903600 W DE9903600 W DE 9903600W WO 0029187 A1 WO0029187 A1 WO 0029187A1
Authority
WO
WIPO (PCT)
Prior art keywords
foam layer
nozzle
carrier
plastic
liquid
Prior art date
Application number
PCT/DE1999/003600
Other languages
German (de)
French (fr)
Inventor
Manfred Detterbeck
Original Assignee
Manfred Detterbeck
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 Manfred Detterbeck filed Critical Manfred Detterbeck
Priority to JP2000582208A priority Critical patent/JP2002529282A/en
Priority to EP99963214A priority patent/EP1128943A1/en
Publication of WO2000029187A1 publication Critical patent/WO2000029187A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • 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

Definitions

  • the invention relates to a method and a device of the type specified in the preamble of the first and third claims.
  • a plastic carrier is used as the base part, which is provided with a surface skin in a further operation.
  • a foam layer is injected between the surface skin and the carrier.
  • This foam layer may then have to be removed by hand in a further working step with the aid of a suitable device, with a release agent being applied to these surfaces of the carrier for easier removal before the foam layer is applied.
  • the object of the present invention is to remedy this situation and to provide a method and a device for carrying out the method with which the foam layer on the surfaces of the carrier which are not required can be removed simply and quickly.
  • the invention is based on the knowledge that the superfluous foam layer on the unneeded surfaces of the Carrier can be removed very easily with the help of a high pressure liquid jet. With the help of this high-pressure liquid jet, the foam that is not required is torn off, without the foam layer being destroyed at the required points.
  • the working time for removing the foam layer that is not required can be drastically reduced with the method according to the invention.
  • a further advantage of the method according to the invention is that there is no longer any need to apply a release agent, since the high-pressure liquid jet is able to remove the foam layer even without the use of a release agent.
  • the dirt cutter nozzle of a high-pressure cleaner has proven to be a suitable nozzle.
  • the liquid high-pressure pump can also be part of a high-pressure cleaner which is customary on the market and can be operated with untreated water from the water network.
  • the nozzle can be guided by a robot, so that the work can now be carried out fully automatically without the aid of a worker.
  • FIG. 1 An exemplary embodiment of the invention is shown schematically in the single figure.
  • a plastic equipment part is referred to that there is a plastic carrier 2, which has on its outside a surface skin 3, which is connected to the plastic carrier 2 via a foam layer 4.
  • this foam is now removed by a high-pressure jet 8 emerging from a nozzle 7.
  • the nozzle 7 is part of a commercially available high-pressure cleaner.
  • the dirt cutter nozzle of a high-pressure cleaner is advantageously used, in which the liquid jet emerges from the nozzle opening in a rotating manner. Untreated water can be used as the liquid.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A commercially available high-pressure cleaner is used with a dirt-cutting nozzle (7) in order to remove an unwanted foam layer from a support in plastic accessories (1) for the passenger compartment of a motor vehicle, whereby said accessories consist of a support (2) and a surface layer (3) with an intermediate foam layer (4).

Description

Beschreibung description
Verfahren und Vorrichtung zum Reinigen von Kunststoff-BauteilenMethod and device for cleaning plastic components
Die Erfindung betrifft ein Verfahren und eine Vorrichtung der im Oberbegriff des ersten bzw. dritten Anspruchs angegebenen Art .The invention relates to a method and a device of the type specified in the preamble of the first and third claims.
Bei der Herstellung von Kunststoff-Ausstattungsteilen für den Kraftfahrzeuginnenraum, beispielsweise Instrumententafeln, Armlehnen etc., wird ein Kunststoff-Träger als Basisteil verwendet, der in einem weiteren Arbeitsgang mit einer Oberflächenhaut versehen wird. Gleich- zeitig wird eine Schaumschicht zwischen Oberflächenhaut und Träger eingespritzt. Hierbei läßt es sich nicht verhindern, daß die Schaumschicht auch auf Flächen des Trägers gelangt, die an und für sich nicht mit einer Schaumschicht versehen werden sollen, weil sie noch für andere Zwecke benötigt werden. Diese Schaumschicht muß dann in einem weiteren Arbeitsgang von Hand eventuell mit Hilfe einer geeigneten Einrichtung entfernt werden, wobei zum leichteren Entfernen vor dem Aufbringen der Schaumschicht ein Trennmittel auf diese Flächen des Trägers aufgebracht wird.In the production of plastic equipment parts for the motor vehicle interior, for example instrument panels, armrests, etc., a plastic carrier is used as the base part, which is provided with a surface skin in a further operation. At the same time, a foam layer is injected between the surface skin and the carrier. In this case, it cannot be prevented that the foam layer also reaches surfaces of the carrier which should not in themselves be provided with a foam layer because they are still needed for other purposes. This foam layer may then have to be removed by hand in a further working step with the aid of a suitable device, with a release agent being applied to these surfaces of the carrier for easier removal before the foam layer is applied.
Aufgabe der vorliegenden Erfindung ist es, hier Abhilfe zu schaffen und ein Verfahren und eine Vorrichtung zur Durchführung des Verfahrens bereitzustellen, mit dem die Schaumschicht an den nicht benötigten Flächen des Trägers einfach und schnell entfernt werden kann.The object of the present invention is to remedy this situation and to provide a method and a device for carrying out the method with which the foam layer on the surfaces of the carrier which are not required can be removed simply and quickly.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des ersten bzw. dritten Anspruchs gelöst. Die Er- findung basiert auf der Erkenntnis, daß die überflüssige Schaumschicht an den nicht benötigten Flächen des Trägers sehr leicht mit Hilfe eines Flüssigkeitshochdruckstrahls entfernt werden kann. Mit Hilfe dieses Flüssigkeitshochdruckstrahls wird der nicht benötigte Schaum abgerissen, und zwar ohne daß die Schaumschicht an den benötigten Stellen zerstört wird.This object is achieved by the features of the first and third claims. The invention is based on the knowledge that the superfluous foam layer on the unneeded surfaces of the Carrier can be removed very easily with the help of a high pressure liquid jet. With the help of this high-pressure liquid jet, the foam that is not required is torn off, without the foam layer being destroyed at the required points.
Die Arbeitszeit zum Entfernen der nicht benötigten Schaumschicht kann mit dem erfindungsgemäßen Verfahren drastisch verkürzt werden.The working time for removing the foam layer that is not required can be drastically reduced with the method according to the invention.
Ein weiterer Vorteil des erfindungsgemäßen Verfahrens ist es, daß nun kein Trennmittel mehr aufgetragen werden muß, da der Flüssigkeitshochdruckstrahl in der Lage ist, die SchaumstoffSchicht auch ohne die Ver- wendung eines Trennmittels zu entfernen.A further advantage of the method according to the invention is that there is no longer any need to apply a release agent, since the high-pressure liquid jet is able to remove the foam layer even without the use of a release agent.
Als geeignete Düse hat sich die Schmutzfräserdüse eines Hochdruckreinigers erwiesen. Auch kann die Flüssigkeitshochdruckpumpe Teil eines Hochdruckreinigers sein, der marktüblich ist und mit unbehandeltem Wasser aus dem Wassernetz betrieben werden kann.The dirt cutter nozzle of a high-pressure cleaner has proven to be a suitable nozzle. The liquid high-pressure pump can also be part of a high-pressure cleaner which is customary on the market and can be operated with untreated water from the water network.
Besonders vorteilhaft ist es, daß die Düse von einem Roboter geführt werden kann, so daß die Arbeit nunmehr vollautomatisch ohne Zuhilfenahme eines Werkers durchgeführt werden kann.It is particularly advantageous that the nozzle can be guided by a robot, so that the work can now be carried out fully automatically without the aid of a worker.
Mit der Erfindung ist es somit möglich, punktgenau und vollautomatisch die nicht benötigte Schaumschicht von Trägern zu entfernen, ohne die Schaumschicht oder die Oberflächenhaut an anderen Stellen des Trägers zu beschädigen.With the invention it is thus possible to remove the unnecessary foam layer from carriers with pinpoint precision and fully automatically, without damaging the foam layer or the surface skin at other locations on the carrier.
In der einzigen Figur ist schematisiert ein Aus- führungsbeispiel der Erfindung dargestellt. Mit 1 ist ein Kunststoff-Ausstattungsteil bezeichnet, das aus einem Kunststoff-Träger 2 besteht, der auf seiner Außenseite eine Oberflächenhaut 3 trägt, die mit dem Kunststoff-Träger 2 über eine Schaumschicht 4 verbunden ist.An exemplary embodiment of the invention is shown schematically in the single figure. With 1 a plastic equipment part is referred to that there is a plastic carrier 2, which has on its outside a surface skin 3, which is connected to the plastic carrier 2 via a foam layer 4.
In dem Kunststoff-Träger 2 sind Ausnehmungen 5 vorhanden, die zum Befestigen anderer Bauteile dienen.In the plastic carrier 2 there are recesses 5 which are used to fasten other components.
Beim Einführen des Schaumes 4 kann nicht verhindert werden, daß der Schaum 4 durch die Ausnehmungen 5 auf die Rückseite des Kunststoff-Trägers 2 tritt. Der auf den zu reinigenden Flächen 6 des Kunststoff-Trägers 2 sich absetzende Schaum wurde bisher in einem separaten Arbeitsgang von Hand entfernt.When the foam 4 is introduced, it cannot be prevented that the foam 4 passes through the recesses 5 onto the back of the plastic carrier 2. The foam that settles on the surfaces 6 of the plastic carrier 2 to be cleaned has so far been removed by hand in a separate operation.
Erfindungsgemäß wird dieser Schaum nun durch einen aus einer Düse 7 austretenden Hochdruckstrahl 8 entfernt. Die Düse 7 ist Teil eines handelsüblichen Hochdruckreinigers. Vorteilhafterweise wird die Schmutz- fräserdüse eines Hochdruckreinigers verwendet, bei der der Flüssigkeitsstrahl rotierend aus der Düsenöffnung austritt. Als Flüssigkeit kann unbehandeltes Wasser verwendet werden . According to the invention, this foam is now removed by a high-pressure jet 8 emerging from a nozzle 7. The nozzle 7 is part of a commercially available high-pressure cleaner. The dirt cutter nozzle of a high-pressure cleaner is advantageously used, in which the liquid jet emerges from the nozzle opening in a rotating manner. Untreated water can be used as the liquid.

Claims

Ansprüche Expectations
1. Verfahren zum Reinigen von Kunststoff-Bauteilen, die aus einem Träger, einer darauf eingespritzten Schaumschicht und einer Oberflächenhaut bestehen, insbesondere Kunststoff-Ausstattungsteile für den Kraftfahrzeuginnenraum, bei denen die Schaumschicht an nicht benötigten Flächen des Trägers entfernt wird,1. Process for cleaning plastic components which consist of a carrier, a foam layer injected thereon and a surface skin, in particular plastic trim parts for the motor vehicle interior, in which the foam layer is removed from surfaces of the carrier which are not required,
dadurch gekennzeichnet, daßcharacterized in that
die Schaumschicht (4) durch einen aus einer Düse (7) austretenden Flüssigkeitshochdruckstrahl (8) entfernt wird.the foam layer (4) is removed by a liquid high pressure jet (8) emerging from a nozzle (7).
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die zu reinigenden Flächen (6) vor dem Aufbringen der Schaumschicht (4) trennmittelfrei gehalten werden.2. The method according to claim 1, characterized in that the surfaces to be cleaned (6) are kept free of release agents before the application of the foam layer (4).
3. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 oder 2, mit einer Einrichtung zum Entfernen der Schaumschicht an nicht benötigten Flächen des Trägers, dadurch gekennzeichnet, daß zum Entfernen eine Düse (7) vorgesehen ist, die an eine Flüssigkeitshoch- druckpumpe angeschlossen ist.3. Device for performing the method according to claim 1 or 2, with a device for removing the foam layer on unnecessary surfaces of the carrier, characterized in that for removing a nozzle (7) is provided which is connected to a high-pressure liquid pump.
4. Vorrichtung nach Anspruch 3 , dadurch gekennzeichnet, daß als Düse (7) eine Schmutzfräserdüse eines Flüssigkeitshochdruckreinigers vorgesehen ist.4. The device according to claim 3, characterized in that a dirt milling nozzle of a liquid high-pressure cleaner is provided as the nozzle (7).
5. Vorrichtung nach Anspruch 3 oder 4 , dadurch gekennzeichnet, daß als Flüssigkeit Wasser verwendet wird.5. Apparatus according to claim 3 or 4, characterized in that water is used as the liquid.
6. Vorrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß die Düse (7) von einem Roboter entlang den zu reinigenden Flächen des Kunststoff-Trägers geführt wird. 6. Device according to one of claims 3 to 5, characterized in that the nozzle (7) of one Robot is guided along the surfaces of the plastic carrier to be cleaned.
PCT/DE1999/003600 1998-11-12 1999-11-11 Method and device for cleaning plastic components WO2000029187A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000582208A JP2002529282A (en) 1998-11-12 1999-11-11 Method and apparatus for cleaning plastic moldings
EP99963214A EP1128943A1 (en) 1998-11-12 1999-11-11 Method and device for cleaning plastic components

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998152225 DE19852225B4 (en) 1998-11-12 1998-11-12 Use of a liquid high-pressure jet emerging from a nozzle
DE19852225.8 1998-11-12

Publications (1)

Publication Number Publication Date
WO2000029187A1 true WO2000029187A1 (en) 2000-05-25

Family

ID=7887584

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/003600 WO2000029187A1 (en) 1998-11-12 1999-11-11 Method and device for cleaning plastic components

Country Status (4)

Country Link
EP (1) EP1128943A1 (en)
JP (1) JP2002529282A (en)
DE (1) DE19852225B4 (en)
WO (1) WO2000029187A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102601912A (en) * 2012-03-07 2012-07-25 王汉力 Cleaning tank device for cleaning mixing head of polyurethane high-pressure foam machine

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS6150770A (en) * 1984-08-20 1986-03-13 Sumitomo Bakelite Co Ltd Finishing method of molded article
US4696421A (en) * 1985-03-26 1987-09-29 Linde Ag Method of deburring or deflashing articles
EP0436421A1 (en) * 1989-12-20 1991-07-10 Societe Sochata Method for the removal of a coating from parts by use of a high-pressure waterjet
US5217163A (en) * 1990-12-18 1993-06-08 Nlb Corp. Rotating cavitating jet nozzle
EP0548408A1 (en) * 1991-12-27 1993-06-30 K.E.W. Industri A/S Jet-producing head for high-pressure cleaners

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US4365383A (en) * 1979-06-25 1982-12-28 Elan Pressure Clean Limited Cleaning apparatus for components
DE3432507A1 (en) * 1984-09-04 1986-03-13 Frank'sche Eisenwerke Ag, 6340 Dillenburg Method and apparatus for cleaning articles
JPS6238257A (en) * 1985-08-09 1987-02-19 R D Kosan Kk Ultrahigh pressure water jet apparatus
DE8630385U1 (en) * 1986-11-13 1987-01-08 Hawig Maschinenfabrik Gmbh, 6140 Bensheim Washing device for cleaning discs
US5220935A (en) * 1990-12-28 1993-06-22 Carolina Equipment & Supply Co., Inc. Apparatus and method for cleaning with a focused fluid stream
JPH06278027A (en) * 1992-12-08 1994-10-04 Flow Internatl Corp Method for removing hard film by superhigh pressure fan jet
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JP2881558B2 (en) * 1995-07-12 1999-04-12 本田技研工業株式会社 Removal method of temporary protective coating

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150770A (en) * 1984-08-20 1986-03-13 Sumitomo Bakelite Co Ltd Finishing method of molded article
US4696421A (en) * 1985-03-26 1987-09-29 Linde Ag Method of deburring or deflashing articles
EP0436421A1 (en) * 1989-12-20 1991-07-10 Societe Sochata Method for the removal of a coating from parts by use of a high-pressure waterjet
US5217163A (en) * 1990-12-18 1993-06-08 Nlb Corp. Rotating cavitating jet nozzle
EP0548408A1 (en) * 1991-12-27 1993-06-30 K.E.W. Industri A/S Jet-producing head for high-pressure cleaners

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 211 (M - 501) 24 July 1986 (1986-07-24) *

Also Published As

Publication number Publication date
EP1128943A1 (en) 2001-09-05
DE19852225B4 (en) 2006-04-27
JP2002529282A (en) 2002-09-10
DE19852225A1 (en) 2000-05-25

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