DE2433789A1 - Powder spray cabin with excess powder discharge - of minimum structural height even for spraying large articles - Google Patents

Powder spray cabin with excess powder discharge - of minimum structural height even for spraying large articles

Info

Publication number
DE2433789A1
DE2433789A1 DE2433789A DE2433789A DE2433789A1 DE 2433789 A1 DE2433789 A1 DE 2433789A1 DE 2433789 A DE2433789 A DE 2433789A DE 2433789 A DE2433789 A DE 2433789A DE 2433789 A1 DE2433789 A1 DE 2433789A1
Authority
DE
Germany
Prior art keywords
powder
cabin
belt
conveyor belt
coating
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.)
Pending
Application number
DE2433789A
Other languages
German (de)
Inventor
Eugen Laepple
Roland Weiss
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE2433789A priority Critical patent/DE2433789A1/en
Publication of DE2433789A1 publication Critical patent/DE2433789A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B05B14/20—Arrangements for collecting, re-using or eliminating excess spraying material from moving belts, e.g. filtering belts or conveying belts
    • 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
    • B05B14/41—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by cleaning the walls of the booth
    • 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
    • B05B14/41—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by cleaning the walls of the booth
    • B05B14/412—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by cleaning the walls of the booth wherein the walls of the booth is perforated or porous walls and the walls are cleaned of or prevented from being contacted with excess material by a flow of fluid, e.g. air or water, directed into the booth

Abstract

Powder spray cabin comprises means for discharging excess powder, including on the bottom an endless rotating conveyor belt (6) made of metal, plastics or textile or metal mesh fibric, and at the end of the cabin in the direction of travel of the belt and immediately above the belt suction means (9) for removing unused powder. Beneath the belt are compressed air nozzles (10), and above the nozzles and belt areh.t. conductors (11) for charging the high-turbulence powder. The design is especially intended to minimise the height of the cabin when large sized workpieces are being processed.

Description

Kabine zur Pulverbeschichtung Die Erfindung bezieht sich auf eine Kabine zur Pulverbeschichtung mit einer zur Austragung überschüssigen Pulvers vorgesehenen Vorrichtung.Powder coating booth The invention relates to a Powder coating booth with a designated area for discharging excess powder Contraption.

Das Austragen des nicht verbrauchten Pulvers aus den Beschichtungskabinen ist insbesondere bei großen Kabinen ein Problem. So ist es bekannt, den Boden derartiger Beschichtungskabinen in Form eines Trichters auszubilden. Urn jedoch ein Verstopfen des Trichters zu verhindern,ist es notwendig, den Trichter mit einem steilen Winkel zu versehen. Dies erfordert eine um so größere Bauhöhe, je größer die Kabine ist. Damit benötigen derartige Anlagen sehr viel Platz. Es ist weiterhin bekannt, eine Absaugung direkt am Boden anzubringen. Dies hat aber den Nachteil, daß an den Stirnflächen, d.h. am Einlauf oder am Auslauf der Beschichtungskabine die Saugleistung zu gering wird und sich dort unverbrauchtes Pulver ansammelt.Discharge of the unused powder from the coating booths is a problem especially with large cabins. So it is known to soil such Train coating booths in the form of a funnel. Urn, however, a clogging To prevent the funnel, it is necessary to set the funnel at a steep angle to provide. This requires one more the greater the height, the greater the cabin is. Such systems therefore require a lot of space. It is still known to attach a suction directly to the floor. But this has the disadvantage that at the end faces, i.e. at the inlet or outlet of the coating booth the suction power is too low and unused powder collects there.

Aufgabe der vorliegenden Erfindung ist es, eine Kabine zur Pulverbeschichtung anzugeben, die, auch wenn es sich um große Kabinen handelt, in möglichst geringer Bauhöhe ausgeführt werden können.The object of the present invention is to provide a booth for powder coating indicate which, even if the cabins are large, in as little as possible Construction height can be run.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die Kabine am Boden ein endloses, umlaufendes Transportband aufweist. In einer Weiterbildung der Erfindung weist die Kabine darüber hinaus in Laufrichtung des Bandes gesehen am Ende der Kabine eine Absaugvorrichtung unmittelbar über dem Band auf, mit der das Beschichtungspulver abtransportiert und der Beschichtungsanlage erneut wieder zugeführt werden kann.This object is achieved according to the invention in that the cabin has an endless, revolving conveyor belt on the floor. In a further education According to the invention, the cabin also has as seen in the running direction of the belt at the end of the booth a suction device directly above the belt with which the coating powder is transported away and the coating system again can be fed.

Das endlose, umlaufende Transportband besteht aus Metall oder Kunststoff oder vorzugsweise aus einem Textilgewebe oder Metallsiebgewebe, da bei Verwendung eines solchen in einer weiteren Ausbildung der Erfindung die Möglichkeit besteht, unter dem Band eine Preßluftdüse sowie zwischen dem Band und dem zu beschichtenden Teil Hochspannung führende Leiter einzubauen, so daß das überschüssige Pulver zumindest teilweise unmittelbar in der Kabine noch verwertet werden kann. Diese Ausführung ist besonders günstig, wenn die zu beschichtenden Teile in der Nähe des am Boden befindlichen Transportbandes eine horizontale Fläche aufweist, die von unten beschichtet werden muß.The endless, revolving conveyor belt is made of metal or plastic or preferably made of a textile fabric or metal mesh, as when used such in a further embodiment of the invention there is the possibility a compressed air nozzle under the belt and between the belt and the one to be coated Part of high-voltage conductors should be built in, so that the excess powder at least can still be partially recycled directly in the cabin. This execution is particularly beneficial when the parts to be coated are close to the floor located conveyor belt has a horizontal surface that is coated from below must become.

Die Erfindung soll im folgenden anhand der Figur näher erläutert werden. Die Fig. zeigt den Schnitt durch eine erfindungsgemäße Kabine zur Pulverbeschichtung.The invention is to be explained in more detail below with reference to the figure. The figure shows the section through a booth according to the invention for powder coating.

Die Kabine besteht aus einem Gehäuse 1 mit Eintritt-bzw. Austrittsöffnungen 2 für die zu beschichtenden Teile 3, die an der Förderbahn 4 durch die Kabine hindurch bewegt werden. Die Beschichtungspistole 5 bewegt sich auf und ab, während die zu beschichtenden Teile je nach ihrer Form um ihre vertikale Achse gedreht werden können. Den Boden der Kabine bildet ein endloses, umlaufendes Transportband 6 aus Textilgewebe, das über die beiden Rollen 7 und 8 geführt s und in Pfeilrichtung läuft. Eine Absaugung 9 sorgt tür den Rücktransport des nicht verbrauchten Pulvers in den Pulver-Vorratsbehälter. Unter dem Band 6 befinden sich Druckluftdüsen 10, mit der durch das Gewebe hindurch Pulver, insbesondere auf horizontale, nach unten gerichtete Flächen aufgebracht werden können.The cabin consists of a housing 1 with an inlet or. Outlet openings 2 for the parts 3 to be coated, which are on the conveyor track 4 through the cabin be moved. The coating gun 5 moves up and down as it closes coating parts can be rotated around their vertical axis depending on their shape. The floor of the cabin is formed by an endless, revolving conveyor belt 6 made of textile fabric, which is guided over the two rollers 7 and 8 and runs in the direction of the arrow. A suction 9 ensures that the unused powder is returned to the powder storage container. Compressed air nozzles 10 are located under the belt 6, with which through the tissue Powder, especially applied to horizontal, downward-facing surfaces can be.

Besonders vorteilhaft ist es, wenn bei einer elektrostatischen Beschichtungsanlage, bei der die zu beschichtenden Teile 3 an Erde liegen, oberhalb des endlosen Transportbandes 6 Hochspannung führende Leiter II angeordnet werden. In diesem Falle wird natürlich auch die Beschichtungspistole 5 an Hochspannung liegen.It is particularly advantageous if, in an electrostatic coating system, in which the parts 3 to be coated are on the ground, above the endless conveyor belt 6 high-voltage conductors II can be arranged. In this case, of course the coating gun 5 are also connected to high voltage.

Die Erfindung zeigt einen Weg, Kabinen zur Pulverbeschichtung, vor allem auch, wenn sie zur Beschichtung großer Teile vorgesehen sind und damit die Kabine groß sein muß, in möglichst niedriger Bauhöhe auszuführen.The invention shows a way of powder coating booths especially if they are intended for coating large parts and thus the Cabin must be large to run in the lowest possible height.

Claims (5)

Ansprüche Expectations Kabine zur Pulverbeschichtung mit einer zur Austragung überschüssigen Pulvers vorgesehenen Vorrichtung, dadurch gekennzeichnet, daß sie am Boden ein endloses, umlaufendes Transportband aufweist.Powder coating booth with an excess for discharge Powder provided device, characterized in that it has an endless, Has revolving conveyor belt. 2. Kabine nach Anspruch 1, dadurch gekennzeichnet, daß sie in Laufrichtung des Transportbandes gesehen am Ende der Kabine eine Absaugvorrichtung unmittelbar über dem Band aufweist. 2. Cabin according to claim 1, characterized in that it is in the direction of travel of the conveyor belt seen at the end of the cabin a suction device directly has over the band. 3. Kabine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das endlose umlaufende Transportband aus Metall oder Kunststoff besteht. 3. Cabin according to claim 1 or 2, characterized in that the endless circulating conveyor belt made of metal or plastic. 4. Kabine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das endlose umlaufende Transportband aus Textilgewebe oder Metallsiebgewebe besteht und daß unter dem Band Druckluftdüsen eingebaut sind. 4. Cabin according to claim 1 or 2, characterized in that the endless circulating conveyor belt made of textile fabric or metal mesh and that compressed air nozzles are installed under the belt. 5. Kabine nach Anspruch 4, dadurch gekennzeichnet, daß sich über den Druckluftdüsen und dem Band Hochspannung führende Leiter zur Aufladung des hochgewirbelten Beschichtungspulvers befinden. 5. Cabin according to claim 4, characterized in that over the compressed air nozzles and the tape high voltage conductors to charge the whirled up Coating powder are located.
DE2433789A 1974-07-13 1974-07-13 Powder spray cabin with excess powder discharge - of minimum structural height even for spraying large articles Pending DE2433789A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2433789A DE2433789A1 (en) 1974-07-13 1974-07-13 Powder spray cabin with excess powder discharge - of minimum structural height even for spraying large articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2433789A DE2433789A1 (en) 1974-07-13 1974-07-13 Powder spray cabin with excess powder discharge - of minimum structural height even for spraying large articles

Publications (1)

Publication Number Publication Date
DE2433789A1 true DE2433789A1 (en) 1976-01-29

Family

ID=5920515

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2433789A Pending DE2433789A1 (en) 1974-07-13 1974-07-13 Powder spray cabin with excess powder discharge - of minimum structural height even for spraying large articles

Country Status (1)

Country Link
DE (1) DE2433789A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035246A1 (en) * 1980-03-05 1981-09-09 COMPAGNIE EUROPEENNE POUR L'EQUIPEMENT MENAGER "CEPEM" Société anonyme dite: Method and apparatus for the re-ionisation of insulating powder in an electrostatic powder-coating installation
DE3500005A1 (en) * 1985-01-02 1986-07-10 ESB Elektrostatische Sprüh- und Beschichtungsanlagen G.F. Vöhringer GmbH, 7758 Meersburg COATING CABIN FOR COATING THE SURFACE OF WORKPIECES WITH COATING POWDER
FR2646107A1 (en) * 1989-04-21 1990-10-26 Missier Gabriele Trasmetal CABIN OF ELECTROSTATIC PAINTING

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035246A1 (en) * 1980-03-05 1981-09-09 COMPAGNIE EUROPEENNE POUR L'EQUIPEMENT MENAGER "CEPEM" Société anonyme dite: Method and apparatus for the re-ionisation of insulating powder in an electrostatic powder-coating installation
FR2477431A1 (en) * 1980-03-05 1981-09-11 Cepem METHOD AND DEVICE FOR REIONIZING INSULATING POWDER IN AN ELECTROSTATIC POWDER INSTALLATION OF OBJECTS
DE3500005A1 (en) * 1985-01-02 1986-07-10 ESB Elektrostatische Sprüh- und Beschichtungsanlagen G.F. Vöhringer GmbH, 7758 Meersburg COATING CABIN FOR COATING THE SURFACE OF WORKPIECES WITH COATING POWDER
FR2646107A1 (en) * 1989-04-21 1990-10-26 Missier Gabriele Trasmetal CABIN OF ELECTROSTATIC PAINTING

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