EP0273336A2 - Device for water paint coating by means of a rotary atomizer or another application system with direct or contact charging - Google Patents

Device for water paint coating by means of a rotary atomizer or another application system with direct or contact charging Download PDF

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Publication number
EP0273336A2
EP0273336A2 EP87118911A EP87118911A EP0273336A2 EP 0273336 A2 EP0273336 A2 EP 0273336A2 EP 87118911 A EP87118911 A EP 87118911A EP 87118911 A EP87118911 A EP 87118911A EP 0273336 A2 EP0273336 A2 EP 0273336A2
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EP
European Patent Office
Prior art keywords
paint
ink reservoir
reservoir
ring line
flexible insulation
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
EP87118911A
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German (de)
French (fr)
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EP0273336B1 (en
EP0273336A3 (en
Inventor
Horst Klemm
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BASF Farben und Fasern AG
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BASF Lacke und Farben AG
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Priority to AT87118911T priority Critical patent/ATE77574T1/en
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Publication of EP0273336A3 publication Critical patent/EP0273336A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B05B5/1616—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material
    • B05B5/1625—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material the insulating means comprising an intermediate container alternately connected to the grounded material source for filling, and then disconnected and electrically insulated therefrom
    • B05B5/1633—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material the insulating means comprising an intermediate container alternately connected to the grounded material source for filling, and then disconnected and electrically insulated therefrom the arrangement comprising several supply lines arranged in parallel, each comprising such an intermediate container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/043—Discharge apparatus, e.g. electrostatic spray guns using induction-charging

Definitions

  • the invention relates to a device for water-based paint application with high-speed rotary atomizers via direct or contact charging according to the preamble of the main claim.
  • the water-based paint system In contrast to a conventional filler or topcoat, the water-based paint system cannot be adjusted to the specific paint resistance normally required for electrostatics for chemical-physical reasons. It is therefore necessary for the normally earthed paint supply line to be galvanically isolated from the high-voltage spray systems in order to prevent the high voltage from flowing away, so to speak. For this reason, a so-called external charging system, i.e. to use a so-called external charge, but it had to be found that the precipitation efficiency was very negative, which is particularly important in the case of high relative atmospheric humidity.
  • ink reservoirs are used for direct charging, both of which are set up insulated from earth.
  • One ink supply container supplies one or more spray systems via a pump and a so-called cabin line, while the other ink supply container is designed as an intermediate filling station.
  • the cabin ring line and the first ink reservoir equipped with a pump are insulated from earth and since this ink reservoir can only hold a limited amount of ink material, on the other hand so-called continuous operation is desired, it must be refilled when a certain ink level is reached.
  • this ink reservoir can only hold a limited amount of ink material, on the other hand so-called continuous operation is desired, it must be refilled when a certain ink level is reached.
  • the first storage container from the ring line is filled with coloring material and during this time this storage container is at earth potential. After closing the valves, this intermediate container is placed at high voltage potential and then filled.
  • the filling of the ink reservoir equipped with a pump and the intermediate filling of the intermediate container are fully automatic.
  • the invention has for its object a to create direction for a water-based paint application with high-speed rotary atomizers and so-called direct charging, in which this mechanical effort, as was required in the prior art, is avoided.
  • the invention proposes that the normally grounded ring line be connected to two distributor lines, which are connected to the interior of a paint reservoir, with the interposition of an electrically insulating switching mechanism.
  • a flexible insulation is arranged within this ink reservoir, which divides the interior of the ink reservoir into two container interiors.
  • the flexible insulation is so large that it can lay against the inner wall of the paint reservoir in one or the other position. Due to the flexible insulation, the ink reservoir is also divided into two electrically separate areas with regard to its two container jacket parts.
  • storage container connect two paint supply lines, which are equipped with the high-speed rotary atomizers at their end.
  • one of the two distribution lines is connected to the ring line and now the interior of the ink reservoir located in the area of the mouth of this distribution line can be filled with color material, the ink supply line adjoining this interior being closed Color material filled via the ring line and the flexible insulation lies in the container on the inner wall of the container part, which is not connected to the distributor line connected to the ring line.
  • the switching mechanism is switched over and now the coloring material is fed from the ring line into the interior of the container, which has not been filled with coloring material so far, the pressure in the ring line causing the flexible insulation to the one in the container Color expresses. If the previously closed ink supply line is now opened, the pressure from the ring line via the distributor line, with the flexible insulation interposed, presses the ink material in the container through the first ink supply line to the high-speed rotary bell, the ink supply line now being closed, which connects to the interior, which at this time is connected to the ring line by opening the switching mechanism.
  • the isolation gap on the switching mechanism and the flexible insulation in the container ensure galvanic potential isolation at all times, the material pressure of the ring line being sufficient to supply the paint to the high-speed rotary atomizers.
  • 1 denotes a ring line, at the end of which a switching mechanism 2 is arranged.
  • the two branches of the switching mechanism are connected to distribution lines 3 and 4, which open into an ink reservoir 5.
  • this ink reservoir 5 is shown as a ball or cylinder, but this is not absolutely necessary, the size of the amount of consumption should be adapted.
  • a flexible insulation 6 is provided which is of such a size that it is able to contact the inner wall of the ink reservoir 5.
  • the flexible insulation 6 is arranged centrally between the two ink reservoir parts. In this way, two mutually insulated container casing parts 7 and 8 are created and two mutually insulated container interiors 9 and 10.
  • Paint supply lines open into these interiors 9 and 10, a paint supply line 11 connecting to the interior 9 and a paint supply line 12 connecting to the interior 10, which lead to the actual high-speed rotary atomizers not shown in the drawing.
  • arrows F represent a position of the switching mechanism 2 such that the color material coming from the ring line 1 is supplied via the distributor line 3 to the interior 9 of the ink reservoir 5.
  • a valve provided in the paint supply line 11 is closed in this state and a valve provided in the paint supply line 12 is opened.
  • the interior 10 formed on the other side of the flexible insulation 6 is filled with paint material, so that the pressure of the ring line is now over the distribution line 3 acts on the outside of the flexible insulation 6 so that it is able to express the actual color material located in the interior 10 via the color supply line 12.
  • a switching mechanism 2 is switched.
  • the interior 9 has been filled with color material and the interior 10 is emptied and now, by switching the switching mechanism 2 via the distributor line 4, pressure is exerted on the other outside of the flexible insulation and thus, after opening the valve provided in the paint supply line 11, that in the interior 9 then located color material is expressed from the ink supply line 11, while the valve provided in the ink supply line 12 is closed.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Nozzles (AREA)
  • Cable Accessories (AREA)
  • Spray Control Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

PCT No. PCT/EP87/00803 Sec. 371 Date Aug. 9, 1989 Sec. 102(e) Date Aug. 9, 1989 PCT Filed Dec. 19, 1987 PCT Pub. No. WO88/04957 PCT Pub. Date Jul. 14, 1988.A paint storage vessel is disclosed which is subdivided by flexible insulation into two interior spaces, each connected to its own distribution line and its own paint supply line. The ring main system is connected to the two distribution lines and is effected with the interposition of an electrically insulating change-over mechanism.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Wasserlackapplikation mit Hochrotationszerstäubern über Direkt- bzw. Kontaktaufladung gemäß dem Ober­begriff des Hauptanspruches.The invention relates to a device for water-based paint application with high-speed rotary atomizers via direct or contact charging according to the preamble of the main claim.

Aus vielen Gründen wird heute in der Lackapplikation dazu übergegangen, sogenannte Wasserlacksysteme ein­zusetzen, die insbesondere aus Umweltgründen wün­schenswert sind.For many reasons, there is now a trend in paint application to use so-called water-based paint systems, which are particularly desirable for environmental reasons.

Im Gegensatz zu einem konventionellen Füll- oder Decklack kann das Wasserlacksystem aus chemisch-phy­sikalischen Gründen nicht auf den für die Elektro­statik normalerweise notwendigen spezifischen Lack­widerstand eingestellt werden. Es ist daher erfor­derlich, daß die normalerweise geerdete Farbzulei­tung von den unter Hochspannung stehenden Sprüh­systemen galvanisch getrennt wird, um sozusagen ein Abfließen der Hochspannung zu verhindern. Aus diesem Grunde wurde dazu übergegangen, ein sogenanntes ex­ternes Aufladungssystem, d.h. eine sogenannte Außen­aufladung einzusetzen, wobei aber festgestellt wer­den mußte, daß der Niederschlagwirkungsgrad sehr ne­gativ war, was insbesondere bei hohen relativen Luftfeuchtigkeiten von besonderer Bedeutung wird.In contrast to a conventional filler or topcoat, the water-based paint system cannot be adjusted to the specific paint resistance normally required for electrostatics for chemical-physical reasons. It is therefore necessary for the normally earthed paint supply line to be galvanically isolated from the high-voltage spray systems in order to prevent the high voltage from flowing away, so to speak. For this reason, a so-called external charging system, i.e. to use a so-called external charge, but it had to be found that the precipitation efficiency was very negative, which is particularly important in the case of high relative atmospheric humidity.

Die Direktaufladung ergibt demgegenüber optimalere Werte, wobei aber die Vorrichtung zur Durchführung derartiger Direktaufladungen aufwendig ist.In contrast, direct charging gives better values, but the device for carrying it out such direct charging is expensive.

Im Stand der Technik wurde vorgeschlagen, daß für die Direktaufladung zwei Farbvorratsbehälter eingesetzt werden, die beide gegen Erde isoliert aufgestellt sind. Der eine Farbvorratsbehälter ver­sorgt dabei über eine Pumpe und eine sogenannte Ka­binenleitung ein oder mehrere Sprühsysteme, während der andere Farbvorratsbehälter als Zwischenfüll­station ausgebildet ist.It has been proposed in the prior art that two ink reservoirs are used for direct charging, both of which are set up insulated from earth. One ink supply container supplies one or more spray systems via a pump and a so-called cabin line, while the other ink supply container is designed as an intermediate filling station.

Die Kabinenringleitung und der erste mit einer Pumpe ausgerüstete Farbvorratsbehälter sind dabei gegen Erde isoliert und da dieser Farbvorratsbehälter nur eine begrenzte Menge an Farbmaterial aufnehmen kann, andererseits ein sogenannter kontinuierlicher Betrieb erwünscht ist, muß er bei Erreichen eines bestimmten Farbfüllstandes nachgefüllt werden. Während des normalen Betriebes, d.h. der Applikation der Farbe, wird der erste Vorratsbehälter aus der Ringleitung mit Farbmaterial gefüllt und während dieser Zeit liegt dieser Vorratsbehälter auf Erd­potential. Nach dem Schließen der Ventile wird die­ser Zwischenbehälter auf Hochspannungspotential ge­legt und danach wird gefüllt. Das Befüllen des mit einer Pumpe ausgerüsteten Farbvorratsbehälters und das Zwischenbefüllen des Zwischenbehälters läuft dabei vollautomatisch ab.The cabin ring line and the first ink reservoir equipped with a pump are insulated from earth and since this ink reservoir can only hold a limited amount of ink material, on the other hand so-called continuous operation is desired, it must be refilled when a certain ink level is reached. During normal operation, i.e. When the paint is applied, the first storage container from the ring line is filled with coloring material and during this time this storage container is at earth potential. After closing the valves, this intermediate container is placed at high voltage potential and then filled. The filling of the ink reservoir equipped with a pump and the intermediate filling of the intermediate container are fully automatic.

Es ist erkennbar, daß bei einer solchen Anordnung nicht nur zwei Farbvorratsbehälter eingesetzt werden müssen, sondern auch der Installationsaufwand erheb­lichen Umfang annimmt.It can be seen that with such an arrangement not only two ink reservoirs have to be used, but also the installation effort takes up a considerable amount.

Der Erfindung liegt die Aufgabe zugrunde, eine Vor­ richtung für eine Wasserlackapplikation mit Hochro­tationszerstäubern und sogenannter Direktaufladung zu schaffen, bei welcher dieser maschinelle Aufwand wie er im Stand der Technik erforderlich war, ver­mieden wird.The invention has for its object a to create direction for a water-based paint application with high-speed rotary atomizers and so-called direct charging, in which this mechanical effort, as was required in the prior art, is avoided.

Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.This object on which the invention is based is achieved by the teaching of the main claim.

Vorteilhafte Ausgestaltungen sind in den Unteran­sprüchen erläutert.Advantageous configurations are explained in the subclaims.

Mit anderen Worten ausgedrückt, schlägt die Erfin­dung vor, daß die üblich geerdete Ringleitung unter Zwischenschaltung eines elektrisch isolierenden Umschaltmechanismus an zwei Verteilerleitungen an­schließt, die mit dem Inneren eines Farbvorratsbe­hälters in Verbindung stehen. Innerhalb dieses Farb­vorratsbehälters ist eine flexible Isolierung ange­ordnet, die den Farbvorratsbehälter im Innenbereich in zwei Behälterinnenräume unterteilt. Die flexible Isolierung ist dabei so groß, daß sie sich an die Innenwandung des Farbvorratsbehälters in der einen oder in der anderen Stellung anlegen kann. Der Farb­vorratsbehälter wird dabei durch die flexible Iso­lierung ebenfalls hinsichtlich seiner beiden Be­hältermantelteile in zwei elektrisch voneinander getrennte Bereiche unterteilt.In other words, the invention proposes that the normally grounded ring line be connected to two distributor lines, which are connected to the interior of a paint reservoir, with the interposition of an electrically insulating switching mechanism. A flexible insulation is arranged within this ink reservoir, which divides the interior of the ink reservoir into two container interiors. The flexible insulation is so large that it can lay against the inner wall of the paint reservoir in one or the other position. Due to the flexible insulation, the ink reservoir is also divided into two electrically separate areas with regard to its two container jacket parts.

Es handelt sich hierbei um eine statische Dichtung, die elektrisch abisoliert werden kann. Im Gegensatz hierzu können dynamische Dichtungen elektrisch nicht abisoliert werden.It is a static seal that can be stripped electrically. In contrast, dynamic seals cannot be stripped electrically.

An die beiden so geschaffenen Innenräume des Farb­ vorratsbehälters schließen zwei Farbversorgungs­leitungen an, die an ihrem Ende mit den Hochro­tationszerstäubern ausgerüstet sind.To the two color interiors created in this way storage container connect two paint supply lines, which are equipped with the high-speed rotary atomizers at their end.

Die Wirkungsweise dieser Anordnung ist wie folgt:This arrangement works as follows:

Durch entsprechende Schaltung des Umschaltmechanis­mus wird eine der beiden Verteilerleitungen an die Ringleitung angeschlossen und nunmehr kann der im Bereich der Mündung dieser Verteilerleitung lie­gende Innenraum des Farbvorratsbehälters mit Farb­material gefüllt werden, wobei die an diesen In­nenraum anschließende Farbversorgungsleitung ge­schlossen ist Auf diese Weise wird der gesamte Behälter mit Farbmaterial über die Ringleitung ge­füllt und die flexible Isolierung legt sich im Be­hälter an die Innenwandung des Behälterteiles an, das nicht mit der mit der Ringleitung in Verbindung stehenden Verteilerleitung verbunden ist.By appropriate switching of the switching mechanism, one of the two distribution lines is connected to the ring line and now the interior of the ink reservoir located in the area of the mouth of this distribution line can be filled with color material, the ink supply line adjoining this interior being closed Color material filled via the ring line and the flexible insulation lies in the container on the inner wall of the container part, which is not connected to the distributor line connected to the ring line.

Ist der Behälter gefüllt, wird der Umschaltmechanis­mus umgeschaltet und nunmehr erfolgt eine Zuführung des Farbmaterials aus der Ringleitung in den Innen­raum des Behälters, der bisher nicht mit Farb­material gefüllt ist, wobei der Druck in der Ring­leitung bewirkt, daß die flexible Isolierung auf die im Behälter befindliche Farbe drückt. Wird nun­mehr die vorher geschlossene Farbversorgungsleitung geöffnet, drückt der Druck aus der Ringleitung über die Verteilerleitung unter Zwischenschaltung der flexiblen Isolierung das im Behälter befindliche Farbmaterial durch die erste Farbversorgungsleitung nach außen zur Hochrotationsglocke, wobei nunmehr die Farbversorgungsleitung geschlossen ist, die an den Innenraum anschließt, der zu diesem Zeitpunkt mit der Ringleitung unter Öffnen des Umschaltmecha­nismus verbunden ist.If the container is filled, the switching mechanism is switched over and now the coloring material is fed from the ring line into the interior of the container, which has not been filled with coloring material so far, the pressure in the ring line causing the flexible insulation to the one in the container Color expresses. If the previously closed ink supply line is now opened, the pressure from the ring line via the distributor line, with the flexible insulation interposed, presses the ink material in the container through the first ink supply line to the high-speed rotary bell, the ink supply line now being closed, which connects to the interior, which at this time is connected to the ring line by opening the switching mechanism.

Es ist ersichtlich, daß durch die Isolierstrecke am Umschaltmechanismus und über die flexible Isolie­rung im Behälter zu jeder Zeit eine galvanische Po­tentialtrennung gewährleistet ist, wobei der Mate­rialdruck der Ringleitung ausreicht, um die Farbe den Hochrotationszerstäubern zuzuführen.It can be seen that the isolation gap on the switching mechanism and the flexible insulation in the container ensure galvanic potential isolation at all times, the material pressure of the ring line being sufficient to supply the paint to the high-speed rotary atomizers.

Wichtig ist dabei zu bemerken, daß derartige Behäl­ter in beliebiger Größe gefertigt werden können und daß sie dann Bestandteil der Ringleitung sind, wobei es aber auch möglich ist, daß die Behälter in Klein­format hergestellt werden und dadurch Bestandteil der Farbversorgungsleitungen bzw der Hochrotations­zerstäuber werden können.It is important to note that such containers can be made in any size and that they are then part of the ring line, but it is also possible that the containers are made in small format and can thereby become part of the paint supply lines or the high-speed rotary atomizer.

Ein Ausführungsbeispiel der Erfindung wird nachfol­gend anhand der Zeichnung erläutert.An embodiment of the invention is explained below with reference to the drawing.

In der Zeichnung ist mit 1 eine Ringleitung bezeich­net, an deren Ende ein Umschaltmechanismus 2 ange­ordnet ist. Die beiden Abzweige des Umschalt­mechanismus stehen mit Verteilerleitungen 3 und 4 in Verbindung, die in einen Farbvorratsbehälter 5 münden. Bei dem dargestellten Ausführungsbeispiel ist dieser Farbvorratsbehälter 5 als Kugel oder Zylinder dargestellt, was jedoch nicht zwingend erforderlich ist, wobei die Größe der Verbrauchs­menge angepaßt sein sollte. Innerhalb des Farbvor­ratsbehälters 5 und die Wandung des Farbvorrats­behälters 5 in zwei elektrisch voneinander iso­lierte Teile teilend, ist eine flexible Isolierung 6 vorgesehen, die eine solche Größe aufweist, daß sie in der Lage ist, sich an die Innenwandung des Farbvorratsbehälters 5 anzulegen. Hierbei ist die flexible Isolierung 6 mittig zwischen den beiden Farbvorratsbehälterteilen angeordnet. Auf diese Weise werden zwei voneinander isolierte Behäl­termantelteile 7 und 8 geschaffen und zwei vonein­ander isolierte Behälterinnenräume 9 und 10.In the drawing, 1 denotes a ring line, at the end of which a switching mechanism 2 is arranged. The two branches of the switching mechanism are connected to distribution lines 3 and 4, which open into an ink reservoir 5. In the illustrated embodiment, this ink reservoir 5 is shown as a ball or cylinder, but this is not absolutely necessary, the size of the amount of consumption should be adapted. Dividing the ink reservoir 5 and the wall of the ink reservoir 5 into two parts that are electrically insulated from one another, a flexible insulation 6 is provided which is of such a size that it is able to contact the inner wall of the ink reservoir 5. Here, the flexible insulation 6 is arranged centrally between the two ink reservoir parts. In this way, two mutually insulated container casing parts 7 and 8 are created and two mutually insulated container interiors 9 and 10.

An diese Innenräume 9 und 10 münden Farbversor­gungsleitungen, wobei an den Innenraum 9 eine Farb­versorgungsleitung 11 und an den Innenraum 10 eine Farbversorgungsleitung 12 anschließt, die zu den eigentlichen in der Zeichnung nicht dargestellten Hochrotationszerstäubern führen.Paint supply lines open into these interiors 9 and 10, a paint supply line 11 connecting to the interior 9 and a paint supply line 12 connecting to the interior 10, which lead to the actual high-speed rotary atomizers not shown in the drawing.

In der Zeichnung durch die Pfeile F dargestellt ist eine Stellung des Umschaltmechanismus 2 derart, daß das aus der Ringleitung 1 kommende Farbmaterial über die Verteilerleitung 3 dem Innenraum 9 des Farbvorratsbehälters 5 zugeführt wird. Ein in der Farbversorgungsleitung 11 vorgesehenes Ventil ist in diesem Zustand geschlossen und ein in der Farbver­sorgungsleitung 12 vorgesehenes Ventil geöffnet Innerhalb des Farbvorratsbehälters 5 ist der auf der anderen Seite der flexiblen Isolierung 6 ge­bildete Innenraum 10 mit Farbmaterial gefüllt, so daß nunmehr der Druck der Ringleitung über die Verteilerleitung 3 auf die Außenseite der flexiblen Isolierung 6 wirkt, so daß diese in der Lage ist, das eigentliche im Innenraum 10 befindliche Farb­material über die Farbversorgungsleitung 12 auszu­drücken.In the drawing, arrows F represent a position of the switching mechanism 2 such that the color material coming from the ring line 1 is supplied via the distributor line 3 to the interior 9 of the ink reservoir 5. A valve provided in the paint supply line 11 is closed in this state and a valve provided in the paint supply line 12 is opened. Inside the paint reservoir 5, the interior 10 formed on the other side of the flexible insulation 6 is filled with paint material, so that the pressure of the ring line is now over the distribution line 3 acts on the outside of the flexible insulation 6 so that it is able to express the actual color material located in the interior 10 via the color supply line 12.

Hat die flexible Isolierung 6 eine Stellung er­reicht, die umgekehrt der Stellung ist, wie sie in der Zeichnung dargestellt ist, wird ein Umschalt­mechanismus 2 umgeschaltet. Hierbei hat sich der Innenraum 9 mit Farbmaterial gefüllt und der Innenraum 10 ist geleert und nunmehr wird durch Umschalten des Umschaltmechanismus 2 über die Ver­teilerleitung 4 Druck auf die andere Außenseite der flexiblen Isolierung ausgeübt und dadurch nach Öff­nen des in der Farbversorgungsleitung 11 vorge­sehenen Ventiles das im Innenraum 9 dann befind­liche Farbmaterial aus der Farbversorgungsleitung 11 ausgedrückt, während das in der Farbversorgungs­leitung 12 vorgesehene Ventil geschlossen ist.Has the flexible insulation 6 reached a position which is the opposite of the position as in the drawing is shown, a switching mechanism 2 is switched. Here, the interior 9 has been filled with color material and the interior 10 is emptied and now, by switching the switching mechanism 2 via the distributor line 4, pressure is exerted on the other outside of the flexible insulation and thus, after opening the valve provided in the paint supply line 11, that in the interior 9 then located color material is expressed from the ink supply line 11, while the valve provided in the ink supply line 12 is closed.

Claims (4)

1. Vorrichtung zur Wasserlackapplikation mit Hochrotationszerstäubern und Direkt- bzw. Kontaktaufladung mit einem geerdeten Ring­leitungssystem zur Zuführung des Lackes zu den Sprühorganen unter Einschaltung eines Lackvorratsbehälters zwischen Ringleitung und Farbsprühorgan, dadurch gekennzeichnet, daß die Ringleitung (1) vor dem Farbvorrats­behälter (5) in einen Umschaltmechanismus (2) mündet, der eine Isolationsstrecke zwischen der Ringleitung (1) und den beiden sich an­schließenden Verteilerleitungen (3, 4) schafft und
der Farbvorratsbehälter (5) in seinem Inne­ren durch eine flexible Isolierung (6) unter­teilt ist, deren Fläche dem Innenumfang der einen Hälfte des Farbvorratsbehälters (5) entspricht, wobei die flexible Isolierung (6) den Farbvorratsbehälter (5) isolierend in zwei Teile teilt und die beiden so gebilde­ten Innenräume (9, 10) des Farbvorratsbehäl ters an mit den Sprühsystemen in Verbindung stehende Kabinenleitungen (11, 12) an­schließen.1. A device for water-based paint application with high-speed rotary atomizers and direct or contact charging with a grounded ring line system for supplying the paint to the spraying elements by switching on a paint reservoir between the ring line and paint spraying device, characterized in that the ring line (1) in front of the paint reservoir (5) in one Switching mechanism (2) opens, which creates an isolation gap between the ring line (1) and the two adjoining distribution lines (3, 4) and
the interior of the ink reservoir (5) is divided by flexible insulation (6), the area of which corresponds to the inner circumference of one half of the ink reservoir (5), the flexible insulation (6) insulating the ink reservoir (5) into divides two parts and connect the two interiors (9, 10) thus formed of the paint reservoir to the booth lines (11, 12) connected to the spray systems. 2. Vorrichtung nach Anspruch 1, dadurch gekenn­zeichnet, daß der Farbvorratsbehälter (5) aus Kunststoff besteht.2. Device according to claim 1, characterized in that the ink reservoir (5) consists of plastic. 3. Vorrichtung nach einem oder mehreren der vor­hergehenden Ansprüche, dadurch gekennzeich­net, daß die flexible Isolierung (6) den Farbvorratsbehälter in zwei voneinander elek­trisch isolierte Behältermantelteile (7, 8) unterteilt.3. Device according to one or more of the preceding claims, characterized in that the flexible insulation (6) divides the ink reservoir into two mutually electrically insulated container jacket parts (7, 8). 4. Vorrichtung nach einem oder mehreren der vor­hergehenden Ansprüche, dadurch gekennzeich­net, daß im Umschaltmechanismus (2) eine elektrisch wirkende Isolationsstrecke ge­schaffen wird.4. Device according to one or more of the preceding claims, characterized in that an electrically acting insulation gap is created in the switching mechanism (2).
EP19870118911 1986-12-24 1987-12-19 Device for water paint coating by means of a rotary atomizer or another application system with direct or contact charging Expired - Lifetime EP0273336B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87118911T ATE77574T1 (en) 1986-12-24 1987-12-19 DEVICE FOR A WATER PAINT APPLICATION WITH HIGH ROTARY ATOMIZER OR WITH OTHER APPLICATION SYSTEMS VIA DIRECT CHARGING OR. CONTACT CHARGING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3644536A DE3644536C1 (en) 1986-12-24 1986-12-24 Device for a water-based paint application with high-speed rotary atomizers via direct charging or contact charging
DE3644536 1986-12-24

Publications (3)

Publication Number Publication Date
EP0273336A2 true EP0273336A2 (en) 1988-07-06
EP0273336A3 EP0273336A3 (en) 1988-09-21
EP0273336B1 EP0273336B1 (en) 1992-06-24

Family

ID=6317267

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88900881A Pending EP0344172A1 (en) 1986-12-24 1987-12-19 Device for applying water paint by means of high speed rotary atomizers or other application systems by direct or contact charging
EP19870118911 Expired - Lifetime EP0273336B1 (en) 1986-12-24 1987-12-19 Device for water paint coating by means of a rotary atomizer or another application system with direct or contact charging

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP88900881A Pending EP0344172A1 (en) 1986-12-24 1987-12-19 Device for applying water paint by means of high speed rotary atomizers or other application systems by direct or contact charging

Country Status (9)

Country Link
US (1) US4993644A (en)
EP (2) EP0344172A1 (en)
JP (1) JPH0636893B2 (en)
AT (1) ATE77574T1 (en)
BR (1) BR8707928A (en)
CA (1) CA1298701C (en)
DE (2) DE3644536C1 (en)
ES (1) ES2033291T3 (en)
WO (1) WO1988004957A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3717929A1 (en) * 1987-05-27 1988-12-08 Behr Industrieanlagen Process and system for electrostatic coating with conductive material
FR2646106B1 (en) * 1989-04-19 1991-07-19 Sames Sa INSTALLATION FOR ELECTROSTATICALLY SPRAYING A CONDUCTIVE LIQUID PRODUCT AND ISOLATION DEVICE FOR A DISTRIBUTION CIRCUIT OF A CONDUCTIVE LIQUID PRODUCT
FR2654365B1 (en) * 1989-11-14 1992-02-21 Sames Sa INSTALLATION OF APPLICATION OF CONDUCTIVE COATING PRODUCT, ELECTROSTATICALLY.
FR2656460B1 (en) * 1989-12-22 1994-02-11 Sames Sa ELECTRICAL ISOLATION DEVICE FORMING A CONDUIT ELEMENT AND INSTALLATION COMPRISING SUCH A DEVICE.
DE4013938A1 (en) * 1990-04-30 1991-10-31 Behr Industrieanlagen METHOD AND SYSTEM FOR SERIES COATING OF WORKPIECES WITH CONDUCTIVE COATING MATERIAL
DE4013937A1 (en) * 1990-04-30 1991-10-31 Behr Industrieanlagen METHOD AND SYSTEM FOR SERIES COATING OF WORKPIECES WITH CONDUCTIVE COATING MATERIAL
US5326031A (en) * 1992-10-15 1994-07-05 Nordson Corporation Apparatus for dispensing conductive coating materials including color changing capability
US5549755A (en) * 1994-12-08 1996-08-27 Nordson Corporation Apparatus for supplying conductive coating materials including transfer units having a combined shuttle and pumping device
US5647542A (en) * 1995-01-24 1997-07-15 Binks Manufacturing Company System for electrostatic application of conductive coating liquid
EP1790203B1 (en) 2004-07-21 2015-12-30 Mevion Medical Systems, Inc. A programmable radio frequency waveform generator for a synchrocyclotron
ES2685244T3 (en) 2005-10-07 2018-10-08 Dürr Systems Ag Coating agent supply device and corresponding operating procedure
US8020784B2 (en) * 2005-10-07 2011-09-20 Durr Systems Inc. Coating material supply installation and associated operating procedure
EP2389980A3 (en) 2005-11-18 2012-03-14 Still River Systems, Inc. Charged particle radiation therapy
US8003964B2 (en) 2007-10-11 2011-08-23 Still River Systems Incorporated Applying a particle beam to a patient
US8581523B2 (en) 2007-11-30 2013-11-12 Mevion Medical Systems, Inc. Interrupted particle source
US8933650B2 (en) 2007-11-30 2015-01-13 Mevion Medical Systems, Inc. Matching a resonant frequency of a resonant cavity to a frequency of an input voltage

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FR901634A (en) * 1943-09-16 1945-08-01 Cie Ingersoll Rand Method and apparatus for spraying liquids
FR2572662A1 (en) * 1984-11-05 1986-05-09 Ransburg Sa METHOD AND APPARATUS FOR AUTOMATIC COATING BY ELECTROSTATIC SPRAY

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US3122320A (en) * 1958-03-20 1964-02-25 Ford Motor Co Method for filling electrically charged receptacle
NL187613C (en) * 1978-01-11 1991-12-02 Akzo Nv DEVICE FOR ELECTROSTATIC SPRAYING OF ELECTRICALLY CONDUCTIVE PAINT.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR901634A (en) * 1943-09-16 1945-08-01 Cie Ingersoll Rand Method and apparatus for spraying liquids
FR2572662A1 (en) * 1984-11-05 1986-05-09 Ransburg Sa METHOD AND APPARATUS FOR AUTOMATIC COATING BY ELECTROSTATIC SPRAY

Also Published As

Publication number Publication date
DE3644536C1 (en) 1987-11-19
EP0344172A1 (en) 1989-12-06
EP0273336B1 (en) 1992-06-24
WO1988004957A2 (en) 1988-07-14
WO1988004957A3 (en) 1988-08-11
EP0273336A3 (en) 1988-09-21
JPH01503212A (en) 1989-11-02
ATE77574T1 (en) 1992-07-15
JPH0636893B2 (en) 1994-05-18
US4993644A (en) 1991-02-19
CA1298701C (en) 1992-04-14
DE3780017D1 (en) 1992-07-30
ES2033291T3 (en) 1993-03-16
BR8707928A (en) 1989-10-31

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