DE2952391A1 - Paint residue removal for automobile industry - uses pressurised water spray after body spraying - Google Patents

Paint residue removal for automobile industry - uses pressurised water spray after body spraying

Info

Publication number
DE2952391A1
DE2952391A1 DE19792952391 DE2952391A DE2952391A1 DE 2952391 A1 DE2952391 A1 DE 2952391A1 DE 19792952391 DE19792952391 DE 19792952391 DE 2952391 A DE2952391 A DE 2952391A DE 2952391 A1 DE2952391 A1 DE 2952391A1
Authority
DE
Germany
Prior art keywords
paint
spray
carriage
pressurized water
water spray
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.)
Granted
Application number
DE19792952391
Other languages
German (de)
Other versions
DE2952391C2 (en
Inventor
Bernd 4000 Düsseldorf Bolten
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.)
GRENSING GmbH
Original Assignee
GRENSING GmbH
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 GRENSING GmbH filed Critical GRENSING GmbH
Priority to DE2952391A priority Critical patent/DE2952391C2/en
Publication of DE2952391A1 publication Critical patent/DE2952391A1/en
Application granted granted Critical
Publication of DE2952391C2 publication Critical patent/DE2952391C2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
    • B44D3/16—Implements or apparatus for removing dry paint from surfaces, e.g. by scraping, by burning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/42—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths using electrostatic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

The process is for the removal of paint residue, adhering to the spray carriage during the coating of e.g. car bodies. The carriage (2) is sprayed with pressurized water, and executes a reversing movement relative to the nozzle (5). Alternately, reversible water nozzles may be used. The residual paint is transported by a scraper conveyor into a container. Any moisture generated in the process is drawn off by a fan and recirculated into the system.

Description

Verfahren und Vorrichtung zum Entfernen von beim Spritz-Method and device for removing spray

lackieren von Gegenständen an dem Spritzschlitten haftengebliebenen Lackresten Gegenstand der Erfindung ist ein Verfahren und eine Vorrichtung zum Entfernen von beim Spritzlackieren von Gegenständen, z.B. Automobilkarosserien, am Spritzschlitten haftengebliebenen Lackresten.painting of objects adhering to the spray carriage Paint residues The invention relates to a method and a device for removal when spray painting objects, e.g. automobile bodies, on the spray carriage adhering paint residues.

In fast allen europäischen Automobil fabriken werden die Karosserien auf bewegliche Vorrichtungen (Spritzschlitten) gespannt und so mittels Förderkette durch die Lackierkabinen gezogen. Diese Spritzschlitten werden in einem Kreislauf mit immer wieder neuen Karosserien durch die Lackierkabinen gezogen und erhalten auf diese ;Jeise einen unerwünschten Lacküberzug, der sich mit jedem Durchgang vergrößert und letztlich die Funktionsweise des Schlittens beeinträchtigt. Es ist daher erforderlich, diese Spritzschlitten in kurzen Zeitabständen zu entlacken.The bodies are used in almost all European automobile factories Clamped on movable devices (spray carriage) and so by means of a conveyor chain pulled through the paint booth. These spray slides are in a circuit with constantly new bodies pulled through the paint booth and preserved on this; Jeise one unwanted varnish coating that goes with everyone Enlarged passage and ultimately impaired the functionality of the slide. It is therefore necessary to remove paint from these spray slides at short intervals.

Bisher geschieht dies in folgenden Formen: 1. Chemisches Lösen Die Schlitten werden in einer chemischen Lösung abgekocht. Dies hat den Nachteil hoher Energiekosten und eines hohen Zeitaufwandes (15 bis 20 Stunden).So far this has been done in the following forms: 1. Chemical dissolving Sledges are boiled in a chemical solution. This has the disadvantage of being higher Energy costs and a high expenditure of time (15 to 20 hours).

Darüberhinaus lassen sich die häufig verwendeten Zweikomponentenlacke mit diesem Verfahren nicht entfernen. In addition, the frequently used two-component paints can be used do not remove using this procedure.

2. Pyrolyse Der Lacküberzug auf den Schlitten wird abgebrannt. Dies bringt aufgrund der immer strengeren Umweltbestimmungen Probleme mit sich.2. Pyrolysis The paint coating on the carriage is burned off. this brings problems due to increasingly stringent environmental regulations.

3. Kaltentlackung Dies ist das häufigste Verfahren. Unter Verwendung von Methylenchlorid werden die Schlitten in Bäder getaucht, und während der Dauer von ca. 12 Stunden wird der anhaftende Lack durch das Lösungsmittel, Methylenchlorid, gelöst und entfernt.3. Cold paint stripping This is the most common procedure. Under use the sledges are immersed in baths of methylene chloride, and for the duration after approx. 12 hours, the adhering paint is removed by the solvent, Methylene chloride, solved and removed.

Dieses Verfahren hat jedoch folgende Nachteile: - Methylenchlorid gehört zur Gruppe der gefährlichen Arbeitsstoffe, und ist daher nur bei Beachtung aller behördlichen Auflagen hinsichtlich Umweltschutz verwendbar.However, this method has the following disadvantages: Methylene chloride belongs to the group of dangerous working materials and is therefore only to be observed all official requirements regarding environmental protection can be used.

- Während der Entlackung tauchen die aus Kastenprofilen hergestellten Lackierschlitten stundenlang in dieses Lösungsmittel. Es ist daher nicht zu vermeiden, daß Methylenchlorid durch die Poren und öffnungen in die Hohlräume der Profile gelangt und Korrosionsangriffe verursacht.- During the paint stripping process, those made from box profiles are immersed Painting sled in this solvent for hours. It is therefore unavoidable that methylene chloride gets through the pores and openings into the cavities of the profiles and causes corrosion attacks.

- Häufig ist es erforderlich, diese ca. 8000 mm langen und 1500 mm breiten Lackierschlitten zu richten. Sobald dies warm mittels Schweißbrenner geschieht, zersetzt sich das Methylenchlorid in Phosgen und andere äußerst gesundheitsschädliche Stoffe und bildet daher eine erhebliche Gefahr für das Instandsetzungspersonal.- It is often necessary to have these approx. 8000 mm long and 1500 mm wide painting carriage. As soon as this is done warmly using a welding torch, the methylene chloride decomposes into phosgene and other extremely harmful substances Substances and therefore constitutes a considerable risk for the repair personnel.

Aufgabe der vorliegenden Erfindung ist nun die Schaffung eines Verfahrens und einer Vorrichtung, die ein einfaches schnelles und problemloses Ablösen von Lackresten auf Lackierschlitten ermöglicht.The object of the present invention is now to provide one Method and a device that a simple, fast and problem-free detachment of paint residues on painting slides.

Zur Lösung diese Aufgabe werden die in den Ansprechen gekennzeichneten Maßnahmen vorgeschlagen.To solve this problem, the ones identified in the responses Measures proposed.

Versuche haben ergeben, daß eine Entlackung des J,ackierschlittens mit hochgespanntem reinem Wasser die schnellstmögliche und umweltfreundlichste Lösung darstellt.Tests have shown that paint stripping of the J, ackierschlittens with high pressure pure water the fastest possible and most environmentally friendly solution represents.

Die kinetische Energie des Wassers bewirkt, daß sich die Lackschichten in kurzer Zeit lösen und von einem Kratzbandförderer am Boden der Kabine automatisch ausgetragen werden können. Das einmal vorhandene Brauchwasser wird über Filter immer wieder der Hochdruckpumpe zugeführt, so daß ein vollkommenes Recycling ermöglicht wird.The kinetic energy of the water causes the paint layers to form loosen in a short time and automatically from a scraper belt conveyor on the floor of the cabin can be carried out. The service water once available is always filtered through a filter fed back to the high pressure pump so that complete recycling is possible will.

Die durchgeführten Versuche haben ergeben, daß nach dem erfindungsgemäßen Verfahren ein Lackierschlitten in weniger als 30 Minuten metallisch blank gereinigt werden kann.The tests carried out have shown that according to the invention A painting slide is cleaned to a bare metal in less than 30 minutes can be.

Bisher benötigte ein Mitarbeiter einen Tag, um einen Schlitten von Hand mit Spartel und Hammer zu reinigen bzw.Previously, it took an employee one day to move a sled from To be cleaned or cleaned by hand with a spatula and hammer

waren mindestens 12 Stunden erforderlich um mit chemischen Lösungsmitteln bzw. Kaltentlacken mit karcinogen verdächtigen Lösungsmitteln das Entlacken durchzuführen.were required at least 12 hours to deal with chemical Solvents or cold paint stripping with carcinogenic solvents.

Anhand des in der Zeichnung schematisch dargestellten Ausführungsbeispiel wird die Erfindung näher erläutert. In die Kabine 1 wird der zu reinigende Spritzschlitten 2 auf einer Rollenführung 3 hereingerollt. Mit dieser Rollenführung 3 kann das den Vorgang durch das Fenster 4 beobachtende Bedienungspersonal den zu reinigenden Spritzschlitten 2 an der Hochdruckdüse 5 gesteuert vorbeiführen. Dabei kann der Spritzschlitten 2 und/oder die Düse 5 reversierbar geführt werden. Die Hochdruckdüse 5 ist wegen der auftretenden großen Rückstoßkräfte mit einem Manipulator 9 verbunden, der eine leichte und genaue Führung der Düse ermöglicht.Using the exemplary embodiment shown schematically in the drawing the invention is explained in more detail. The spray carriage to be cleaned is placed in booth 1 2 rolled in on a roller guide 3. With this roller guide 3 can the Process through the window 4 observing operating personnel the spray carriage to be cleaned 2 pass the high pressure nozzle 5 in a controlled manner. The spray carriage can 2 and / or the nozzle 5 can be reversed. The high pressure nozzle 5 is due the occurring large recoil forces connected to a manipulator 9, the one allows easy and precise guidance of the nozzle.

Der abgespritzte Lack wird durch einen am Kabinenboden liegenden Kratzbandförderer 6 in den Container 7 transportiert. Ein Luftwäscher 8 saugt den beim Arbeiten entstehenden Wassernebel ab und führt das Wasser dem Kreislauf wieder zu.The sprayed paint is transported by a scraper belt conveyor on the booth floor 6 transported into the container 7. An air washer 8 sucks the generated while working Water mist and returns the water to the cycle.

Claims (4)

Ansprüche: 1. Verfahren zum Entfernen von beim Spritzlackieren von Gegenständen, z.B. von Automobilkarosserien, an dem Spritzschlitten haftengebliebenen Lackresten, d a -d u r c h g e k e n n z e i c h n e t , daß die Spritzschlitten mit Druckwasser abgespritzt werden. Claims: 1. Method of removing when spray painting Objects, e.g. from automobile bodies, stuck to the spray carriage Paint residues, d u r c h e k e nn n e i c h n e t that the spray carriage be hosed down with pressurized water. 2. Verfahren nach Anspruch 1, d a d u r c h g e -k e n n z e i c h n e t , daß der Spritzschlitten beim Abspritzen mit Druckwasser gegenüber der Druckwasserdüse eine Reversierbewegung ausführt.2. The method according to claim 1, d a d u r c h g e -k e n n z e i c h n e t that the spray carriage when spraying with pressurized water opposite the pressurized water nozzle executes a reversing movement. 3. Verfahren nach Anspruch 1, d a d u r c h g e -k e n n z e i c h n e t , daß die Spritzschlitten mit reversierbaren Druckwasserdüsen abgespritzt werden.3. The method of claim 1, d a d u r c h g e -k e n n z e i c h Not that the spray carriage is sprayed with reversible pressurized water nozzles will. 4. Vorrichtung zur Ausübung des Verfahrens nach einem der Ansprüche 1 bis 3, g e k e n n z e i c h n e t d u r c h reversierbare Anordnung des Spritzschlittens (2) und/ oder der Druckwasserdüsen (5).4. Device for performing the method according to one of the claims 1 to 3, not shown, reversible arrangement of the spray carriage (2) and / or the pressurized water nozzles (5).
DE2952391A 1979-12-24 1979-12-24 Method and device for removing paint residues that have adhered to the spray carriage during spray painting of objects Expired DE2952391C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2952391A DE2952391C2 (en) 1979-12-24 1979-12-24 Method and device for removing paint residues that have adhered to the spray carriage during spray painting of objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2952391A DE2952391C2 (en) 1979-12-24 1979-12-24 Method and device for removing paint residues that have adhered to the spray carriage during spray painting of objects

Publications (2)

Publication Number Publication Date
DE2952391A1 true DE2952391A1 (en) 1981-09-24
DE2952391C2 DE2952391C2 (en) 1983-12-01

Family

ID=6089698

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2952391A Expired DE2952391C2 (en) 1979-12-24 1979-12-24 Method and device for removing paint residues that have adhered to the spray carriage during spray painting of objects

Country Status (1)

Country Link
DE (1) DE2952391C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992003299A1 (en) * 1990-08-11 1992-03-05 Deutsche Lufthansa Ag Process for removing paint coatings from surfaces
EP0492268A1 (en) * 1990-12-21 1992-07-01 Linde Aktiengesellschaft Method for removing paint from products
DE102006000658A1 (en) * 2006-01-03 2007-07-05 Volkswagen Ag Vehicle body surface treatment method, involves cleaning contact surface of receiver of locking mechanism of chassis body locking mechanism by removal of coating material using mechanical medium e.g. brush or ultrasonic

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1621565A1 (en) * 1967-07-19 1971-05-13 Duerr O Fa Method and device for cleaning gratings in paint spraying systems
DE2552611B1 (en) * 1975-11-24 1977-05-12 Peter Hutterer Wall scraper for removing old paint or wallpaper - can also be used for cleaning wall surface by including nozzle which supplies cleaner and switching off suction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1621565A1 (en) * 1967-07-19 1971-05-13 Duerr O Fa Method and device for cleaning gratings in paint spraying systems
DE2552611B1 (en) * 1975-11-24 1977-05-12 Peter Hutterer Wall scraper for removing old paint or wallpaper - can also be used for cleaning wall surface by including nozzle which supplies cleaner and switching off suction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992003299A1 (en) * 1990-08-11 1992-03-05 Deutsche Lufthansa Ag Process for removing paint coatings from surfaces
EP0492268A1 (en) * 1990-12-21 1992-07-01 Linde Aktiengesellschaft Method for removing paint from products
DE102006000658A1 (en) * 2006-01-03 2007-07-05 Volkswagen Ag Vehicle body surface treatment method, involves cleaning contact surface of receiver of locking mechanism of chassis body locking mechanism by removal of coating material using mechanical medium e.g. brush or ultrasonic

Also Published As

Publication number Publication date
DE2952391C2 (en) 1983-12-01

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8110 Request for examination paragraph 44
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8363 Opposition against the patent
8331 Complete revocation