EP1245294B1 - Sprayer for a coating installation and process for feeding coating material to the sprayer - Google Patents

Sprayer for a coating installation and process for feeding coating material to the sprayer Download PDF

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Publication number
EP1245294B1
EP1245294B1 EP02006091A EP02006091A EP1245294B1 EP 1245294 B1 EP1245294 B1 EP 1245294B1 EP 02006091 A EP02006091 A EP 02006091A EP 02006091 A EP02006091 A EP 02006091A EP 1245294 B1 EP1245294 B1 EP 1245294B1
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EP
European Patent Office
Prior art keywords
atomiser
metering pump
coating material
storage means
atomising device
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EP02006091A
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German (de)
French (fr)
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EP1245294A3 (en
EP1245294A2 (en
Inventor
Stefano Giuliano
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Duerr Systems AG
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Duerr Systems AG
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1481—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet comprising pigs, i.e. movable elements sealingly received in supply pipes, for separating different fluids, e.g. liquid coating materials from solvent or air

Definitions

  • the invention relates to a nebulizer and a method for supplying material to a nebulizer for a coating machine according to the preamble of the independent claims.
  • the atomizer is, in particular, an electrochemical rotary or air atomizer, mounted as a whole interchangeably on a painting robot or another coating machine, for the serial coating of workpieces such as vehicle bodies, for example.
  • Such atomizers allow, inter alia, advantageous color change concepts and simple potential separation between working with direct charging of the coating material electrostatic Zerstäubungsorganen and the grounded security reasons ink supply system, since the reservoirs are separated during the coating of the grounded supply system and replaced for color change easily and automatically without or with the actual atomizer can be.
  • Known atomizers of this type contain mechanically actuated by a spindle drive dosing ( DE 196 10 588 A ). Such dosing but have the conditional by their design large footprint. In particular, their length, which is about twice as large as the piston stroke because of the piston rod, affects the accessibility of workpiece areas such as vehicle interiors, especially in painting robots or other handling devices.
  • atomizers with hydraulically driven metering cylinders EP 0 967 016 A
  • the pressure fluid must be supplied by a metering pump located outside of the atomizer.
  • JP 08108114 A and US 6050498 A are in itself already known atomizer, in whose housing there is a gear metering pump, which is connected between an also located in the housing color change valve assembly and the atomizing member. These atomizers do not contain reservoirs.
  • the invention has for its object to provide a structurally simple, reliable and not too heavy atomizer whose storage device does not require hydraulic metering and allows for small footprint, and a corresponding method for supplying material to the atomizer.
  • the invention is not only suitable, but in particular for electrostatic atomizers, which are mounted interchangeably as a whole on painting robots or other coating machines and this in a simple way both the required potential separation of the grounded supply system of the coating system and fast and easy color change without significant loss of color and detergent with any number of selectable colors.
  • electrostatic atomizers which are mounted interchangeably as a whole on painting robots or other coating machines and this in a simple way both the required potential separation of the grounded supply system of the coating system and fast and easy color change without significant loss of color and detergent with any number of selectable colors.
  • painting robots is also advantageous that can be dispensed with expensive tubing in the machine, since the internal storage device of the atomizer can be filled with dismounted atomizer.
  • a metering pump designed for example as a gear pump in the atomizer has the advantage that eliminates a dosing of the known type by this conventional, long-proven and reliable component.
  • the formation of the ink reservoir as a hose winding has the advantage that on the one hand due to the significant reduction in diameter compared with conventional cylindrical ink containers correspondingly smaller color change losses of paint and detergent and on the other hand, the design flexibility is significantly improved, especially in terms of space savings. The same applies to the likewise possible use of a more or less rigid pipe spiral as a paint reservoir.
  • the hose winding or pipe spiral is preferably gemölcht to promote the coating material on the metering pump to the atomizing and possibly rest color to press back towards the grounded supply system of the coating system, at the same time results in a very simple way of cleaning the hose inner wall of the storage device through the pig in a conventional manner.
  • Fig. 1 is an atomizer, Z mounted on the wrist 1 of a robot, in the housing 3 in the front region of a Beerzerstäubungsorgan 4 is arranged, the structure and operation are known per se and therefore require no description.
  • the largely cylindrical main part of the housing 3 contains a, for example, coaxially arranged in the center of the housing metering pump DP, for example, a gear pump also known per se and operation.
  • the metering pump DP is connected via a valve block 22 (FIG. Fig. 2 ) connected to the atomizing device 4 and reversible so that they can promote in the two opposite directions.
  • the (not shown) drive the metering pump DP is suitably carried out mechanically, for example with a flexible shaft, which in turn can be driven by bevel gears and a pinion gear on the robot's hand axis (by doubling the robot axis commonly referred to as "axis 6").
  • axis 6 Another possibility is the direct drive of the metering pump DP by an electric motor located in the atomizer.
  • a color tube winding 10 of the illustrated, for example, double-layered spiral shape is arranged, which serves as a reservoir for the coating material.
  • One end of the hose is connected to the side of the metering pump DP facing away from the atomizing device 4, while the other end of the hose is connected to an external compressed air connection (V3A in FIG Fig. 2 ).
  • a special feature of serving as a reservoir hose winding 10 is the piggability.
  • the pig 12 located in the paint hose FM of the hose winding 10 can be pushed by compressed air from the aforementioned compressed air connection through the entire hose winding to press the coating material therein to the metering pump DP.
  • Suitable pigs are known per se.
  • the in Fig. 2 ZA designated atomizer contains the between the metering pump DPA and here shown as a rotary bell atomizer organ valve block 22 with the usual main needle valve HNA for powered by the pump DPA atomizer and a branching ink supply valve V1A. From the line connecting the dosing pump DPA on its opposite side with the paint hose FMA line branches off via a valve V2A a purge and return line. At the end facing away from the pump DPA, the paint hose FMA is connected to a compressed air line with a compressed air valve V3A.
  • the filling station 20 contains a change-over system WWS, which can be coupled together with the atomizer-side changeover system WZA and to which a drive motor M which can be coupled mechanically with the metering pump DPA is included. Further, the station 20 includes a coupled with the atomizer with the valve V2A connected Spülventilan Aunt SV with a flushing valve S10, a pulse air valve PL10 and a return valve RF10 and connected to the valve V1A color changer FW with color valves F1-F4, detergent and pulse air valves S or PL and a return valve RF.
  • a change-over system WWS which can be coupled together with the atomizer-side changeover system WZA and to which a drive motor M which can be coupled mechanically with the metering pump DPA is included.
  • the station 20 includes a coupled with the atomizer with the valve V2A connected Spülventilan Aunt SV with a flushing valve S10, a pulse air valve PL10 and a return valve
  • the selected coating material is forced through the valve V1A and the metering pump DPA into the end of the piggable paint hose FMA facing it in order to fill it, the pig 12A being pushed towards the opposite end of the hose.
  • atomizer ZA While the atomizer ZA is being filled, it is possible to connect to the robot hand axis 1 (FIG. Fig. 1 ) coupled other atomizer ZB be coated, as in Fig. 3 shown is where the Fig. 2 corresponding elements with B instead of A are designated.
  • the atomizer-side change system WZB is with the robot side Interchangeable system WR coupled together. Compressed air is supplied via the valve V3B to the piggable paint hose FMB, so that the coating material stored in the hose is pressed by the pig 12B to the metering pump DPB and conveyed from there to the atomizing member. In a nebulizer replacement with color change thus results in the following cycle.
  • the atomizer ZB is located on the robot.
  • the two halves of the exchange system WZB and WR and also the drive for the dosing pump DPB are engaged.
  • the valves V1B and V2B are closed.
  • Valve V3B releases compressed air, driving pig 12B.
  • the pig as it moves in the paint hose FMB between the valves V3B and V2B, presses the first ink to the metering pump DPB, which meters the ink at the set coating speed and is driven by the motor M in the robot.
  • the pig separates the paint from the compressed air used as a pig driving medium and at the same time ensures the cleaning of the paint hose walls.
  • the atomizer ZB works under high voltage.
  • Start of a color change program in the atomizer change, rinse and fill station 20 In the event of a pending color change, the system controller starts an automatic rinse and pressure program.
  • the other atomizer ZA which is located in the atomizer changing and rinsing station 20, is prepared for the next painting task.
  • the two halves of the exchange system WZA and WWS are engaged. All valves of station 20 are in their normal position.
  • Flushing the atomiser ZA During the subsequent rinsing process, the pig 12A is located in the paint hose FMA close to the nozzle Valve V2A, as it is assumed that during the last painting process it expressed all the paint in the paint hose (possibly with the exception of one safety volume).
  • the valve V3A is opened, so that the pig is acted upon with compressed air.
  • the valve V2A now opens, as a result of which the detergent-air mixture produced by the mutual opening of the valves V10 and PL10 on the control valve SV flows via the metering pump DPA running with purging speed and through the opened valve HNA.
  • the atomizer ZA is flushed from the valve V2A via the metering pump DPA.
  • the pressure of the pressurized air applied to the pig via the valve V3A is greater than the pressure of the rinse-medium / air mixture.
  • the dosing pump DPA is driven by the motor M in the station 20.
  • the color changer FW is then rinsed via the valve V1A with the valve RF open when the valve HNA is closed.
  • the entire system can be blown dry with a short pulse air interval.
  • Pressing the second paint in the atomizer ZA The pig 12A is located near the valve V2A with the valve V3A open. After flushing the valves F2, V1A, V2A and RF10 are opened, whereby the second color passes into the color channel.
  • the dosing pump DPA runs backwards with pressure. After a predetermined time by the control program according to the delivery volume of the metering pump, the valve V2A is closed so that any remaining in the paint hose flushing medium displaced and the system is vented. After the valve V2A is closed, the pig is pushed by the paint column against the pressure of the compressed air to its other end position near the valve V3A. After reaching the desired amount of ink by means of the metering pump, the pressing operation is completed. All valves mentioned go back to their normal position.
  • the atomizer ZA is now prepared for the next painting process and remains in station 20 until the next atomizer change.

Landscapes

  • Spray Control Apparatus (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Nozzles (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The sputter unit (Z), e.g. for electrostatic paint spraying by a robot, has a dosing pump (DP) between the sputter head (4) and the paint supply (FM) held in a coil (10). The paint is forced out of the coil by a pig (12), under pressure from compressed air on one side to force the paint towards the pump for spraying. The pump is operated by an external motor through a flexible drive shaft in or at a robot hand joint (1).

Description

Die Erfindung betrifft einen Zerstäuber und ein Verfahren zur Materialversorgung eines Zerstäubers für eine Beschichtungsmaschine gemäß dem Oberbegriff der unabhängigen Patentansprüche. Bei dem Zerstäuber handelt es sich insbesondere um einen als Ganzes auswechselbar an einem Lackierroboter oder einer sonstigen Beschichtungsmaschine montierten beispielsweise elektrostatischen Rotations- oder Luftzerstäuber für die Serienbeschichtung von Werkstücken wie beispielsweise Fahrzeugkarossen.The invention relates to a nebulizer and a method for supplying material to a nebulizer for a coating machine according to the preamble of the independent claims. The atomizer is, in particular, an electrochemical rotary or air atomizer, mounted as a whole interchangeably on a painting robot or another coating machine, for the serial coating of workpieces such as vehicle bodies, for example.

Derartige Zerstäuber ermöglichen u.a. vorteilhafte Farbwechselkonzepte und einfache Potentialtrennung zwischen mit Direktaufladung des Beschichtungsmaterials arbeitenden elektrostatischen Zerstäubungsorganen und dem aus Sicherheitsgründen geerdeten Farbversorgungssystem, da die Vorratsbehälter bei der Beschichtung von dem geerdeten Versorgungssystem getrennt sind und zum Farbwechsel einfach und automatisch ohne oder auch mit dem eigentlichen Zerstäuber ausgewechselt werden können. Bekannte Zerstäuber dieser Art enthalten mechanisch von einem Spindelantrieb betätigte Dosierzylinder ( DE 196 10 588 A ). Solche Dosierzylinder haben aber den durch ihre Bauform bedingten großen Platzbedarf. Insbesondere ihre Länge, die wegen der Kolbenstange etwa doppelt so groß ist wie der Kolbenhub, beeinträchtigt vor allem bei Lackierrobotern oder sonstigen Handhabungsgeräten die Erreichbarkeit von Werkstückbereichen wie beispielweise Fahrzeuginnenräumen. Es sind zwar auch schon Zerstäuber mit hydraulisch angetriebenen Dosierzylindern bekannt ( EP 0 967 016 A ), deren Druckflüssigkeit aber von einer außerhalb des Zerstäubers befindlichen Dosierpumpe zugeführt werden muß.Such atomizers allow, inter alia, advantageous color change concepts and simple potential separation between working with direct charging of the coating material electrostatic Zerstäubungsorganen and the grounded security reasons ink supply system, since the reservoirs are separated during the coating of the grounded supply system and replaced for color change easily and automatically without or with the actual atomizer can be. Known atomizers of this type contain mechanically actuated by a spindle drive dosing ( DE 196 10 588 A ). Such dosing but have the conditional by their design large footprint. In particular, their length, which is about twice as large as the piston stroke because of the piston rod, affects the accessibility of workpiece areas such as vehicle interiors, especially in painting robots or other handling devices. Although there are already known atomizers with hydraulically driven metering cylinders ( EP 0 967 016 A ), but the pressure fluid must be supplied by a metering pump located outside of the atomizer.

Darüber hinaus ergeben sich bei Dosierzylindern generelle Probleme wie u.a. hohe Anforderungen an Abstützung und Lagerung zur Gewährleistung der gewünschten Dosiergenauigkeit und Dynamik, die nicht nur den Konstruktionsaufwand erhöhen, sondern auch das beispielsweise vom Handgelenk eines Roboters zu tragende Gewicht des Zerstäubers.In addition, arise in dosing cylinders general problems such as u.a. high demands on support and storage to ensure the desired dosing accuracy and dynamics, which not only increase the design effort, but also the example of the wrist of a robot to be worn weight of the atomizer.

Aus JP 08108114 A und US 6050498 A sind an sich schon Zerstäuber bekannt, in deren Gehäuse sich eine Zahnraddosierpumpe befindet, die zwischen eine ebenfalls in dem Gehäuse befindliche Farbwechselventilanordnung und das Zerstäubungsorgan geschaltet ist. Diese Zerstäuber enthalten aber keine Vorratsbehälter.Out JP 08108114 A and US 6050498 A are in itself already known atomizer, in whose housing there is a gear metering pump, which is connected between an also located in the housing color change valve assembly and the atomizing member. These atomizers do not contain reservoirs.

Der Erfindung liegt die Aufgabe zugrunde, einen konstruktiv einfachen, zuverlässigen und nicht zu schweren Zerstäuber anzugeben, dessen Vorratseinrichtung ohne hydraulische Dosierung auskommt und geringen Platzbedarf ermöglicht, sowie ein dementsprechendes Verfahren zur Materialversorgung des Zerstäubers.The invention has for its object to provide a structurally simple, reliable and not too heavy atomizer whose storage device does not require hydraulic metering and allows for small footprint, and a corresponding method for supplying material to the atomizer.

Diese Aufgabe wird durch die Merkmale der Patentansprüche gelöst.This object is solved by the features of the claims.

Die Erfindung eignet sich nicht nur, aber insbesondere für elektrostatische Zerstäuber, die als Ganzes auswechselbar an Lackierrobotern oder sonstigen Beschichtungsmaschinen montiert werden und hierbei auf einfache Weise sowohl die erforderliche Potentialtrennung von dem geerdeten Versorgungssystem der Beschichtungsanlage als auch schnellen und problemlosen Farbwechsel ohne wesentliche Verluste an Farbe und Spülmittel bei beliebiger Anzahl wählbarer Farben ermöglichen. Beispielsweise im Fall von Lackierrobotern ist auch von Vorteil, daß auf aufwendige Verschlauchungen in der Maschine verzichtet werden kann, da die interne Vorratseinrichtung des Zerstäubers bei abmontiertem Zerstäuber befüllt werden kann.The invention is not only suitable, but in particular for electrostatic atomizers, which are mounted interchangeably as a whole on painting robots or other coating machines and this in a simple way both the required potential separation of the grounded supply system of the coating system and fast and easy color change without significant loss of color and detergent with any number of selectable colors. For example, in the case of painting robots is also advantageous that can be dispensed with expensive tubing in the machine, since the internal storage device of the atomizer can be filled with dismounted atomizer.

Der Einbau einer beispielsweise als Zahnradpumpe ausgebildeten Dosierpumpe in den Zerstäuber hat den Vorteil, daß sich durch dieses konventionelle, seit langem bewährte und zuverlässige Bauteil ein Dosierzylinder der bekannten Art erübrigt.The incorporation of a metering pump designed for example as a gear pump in the atomizer has the advantage that eliminates a dosing of the known type by this conventional, long-proven and reliable component.

Die Ausbildung des Farbvorratsbehälters als Schlauchwicklung hat den Vorteil, daß einerseits wegen der im Vergleich mit üblichen zylindrischen Farbbehältern erheblichen Verringerung des Durchmessers entsprechend geringere Farbewechselverluste an Farbe und Spülmittel auftreten und andererseits die konstruktive Flexibilität vor allem im Hinblick auf Platzeinsparung entscheidend verbessert wird. Ähnliches gilt für die ebenfalls mögliche Verwendung einer mehr oder weniger starren Rohrspirale als Farbvorratsbehälter.The formation of the ink reservoir as a hose winding has the advantage that on the one hand due to the significant reduction in diameter compared with conventional cylindrical ink containers correspondingly smaller color change losses of paint and detergent and on the other hand, the design flexibility is significantly improved, especially in terms of space savings. The same applies to the likewise possible use of a more or less rigid pipe spiral as a paint reservoir.

Da die Schlauchwicklung bzw. Rohrspirale vorzugsweise gemolcht wird, um das Beschichtungsmaterial über die Dosierpumpe zu dem Zerstäubungsorgan zu fördern und ggf. Restfarbe zurück in Richtung zu dem geerdeten Versorgungssystem der Beschichtungsanlage zu drücken, ergibt sich zugleich eine sehr einfache Möglichkeit der Reinigung der Schlauchinnenwand der Vorratseinrichtung durch den Molch in an sich bekannter Weise.Since the hose winding or pipe spiral is preferably gemölcht to promote the coating material on the metering pump to the atomizing and possibly rest color to press back towards the grounded supply system of the coating system, at the same time results in a very simple way of cleaning the hose inner wall of the storage device through the pig in a conventional manner.

An dem in der Zeichnung dargestellten Ausführungsbeispiel wird die Erfindung näher erläutert. Es zeigen:

Fig. 1
einen am Handgelenk eines Lackierroboters montierten Luftzerstäuber;
Fig. 2 und 3
schematische Darstellungen des Farbversorgungskonzepts für einen Zerstäuber der hier beschriebenen Art; und
Fig 4
eine allgemeinere Darstellung des Zerstäubers.
On the embodiment shown in the drawing, the invention will be explained in more detail. Show it:
Fig. 1
an air atomizer mounted on the wrist of a paint robot;
FIGS. 2 and 3
schematic representations of the ink supply concept for a nebulizer of the type described herein; and
Fig. 4
a more general representation of the atomizer.

Gemäß Fig. 1 ist an dem Handgelenk 1 eines Roboters ein Zerstäuber, Z montiert, in dessen Gehäuse 3 im vorderen Bereich ein Luftzerstäubungsorgan 4 angeordnet ist, dessen Aufbau und Funktionsweise an sich bekannt sind und daher keiner Beschreibung bedürfen. Der weitgehend zylindrische Hauptteil des Gehäuses 3 enthält eine beispielsweise koaxial in der Gehäusemitte angeordnete Dosierpumpe DP, beispielsweise eine Zahnradpumpe ebenfalls an sich bekannter Art und Funktionsweise. Die Dosierpumpe DP ist über einen Ventilblock 22 (Fig. 2) an das Zerstäubungsorgan 4 angeschlossen und umsteuerbar, so daß sie in den beiden entgegengesetzten Richtungen fördern kann. Der (nicht dargestellte) Antrieb der Dosierpumpe DP ist zweckmäßig mechanisch ausgeführt, z.B. mit einer biegsamen Welle, die ihrerseits über Kegelräder und ein Ritzelgetriebe an der Roboterhandachse angetrieben werden kann (durch Verdoppeln der üblicherweise als "Achse 6" bezeichneten Roboterachse). Eine andere Möglichkeit ist der Direktantrieb der Dosierpumpe DP durch einen in dem Zerstäuber befindlichen Elektromotor.According to Fig. 1 is an atomizer, Z mounted on the wrist 1 of a robot, in the housing 3 in the front region of a Luftzerstäubungsorgan 4 is arranged, the structure and operation are known per se and therefore require no description. The largely cylindrical main part of the housing 3 contains a, for example, coaxially arranged in the center of the housing metering pump DP, for example, a gear pump also known per se and operation. The metering pump DP is connected via a valve block 22 (FIG. Fig. 2 ) connected to the atomizing device 4 and reversible so that they can promote in the two opposite directions. The (not shown) drive the metering pump DP is suitably carried out mechanically, for example with a flexible shaft, which in turn can be driven by bevel gears and a pinion gear on the robot's hand axis (by doubling the robot axis commonly referred to as "axis 6"). Another possibility is the direct drive of the metering pump DP by an electric motor located in the atomizer.

In dem die Dosierpumpe DP umgebenden, im wesentlichen ringförmigen Raum 8 im zylindrischen Teil des Gehäuses 3 ist eine Farbschlauchwicklung 10 der dargestellten, beispielweise doppellagigen Spiralform angeordnet, die als Vorratsbehälter für das Beschichtungsmaterial dient. Das eine Schlauchende ist an die dem Zerstäubungsorgan 4 abgewandte Seite der Dosierpumpe DP angeschlossen, während das andere Schlauchende mit einem externen Druckluftanschluß (V3A in Fig. 2) in Verbindung steht.In which the metering pump DP surrounding, substantially annular space 8 in the cylindrical part of the housing 3, a color tube winding 10 of the illustrated, for example, double-layered spiral shape is arranged, which serves as a reservoir for the coating material. One end of the hose is connected to the side of the metering pump DP facing away from the atomizing device 4, while the other end of the hose is connected to an external compressed air connection (V3A in FIG Fig. 2 ).

Ein besonderes Merkmal der als Vorratsbehälter dienenden Schlauchwicklung 10 ist die Molchbarkeit. Der in dem Farbschlauch FM der Schlauchwicklung 10 befindliche Molch 12 kann durch Druckluft von dem erwähnten Druckluftanschluß durch die gesamte Schlauchwicklung geschoben werden, um das darin befindliche Beschichtungsmaterial zu der Dosierpumpe DP zu drücken. Hierfür geeignete Molche sind an sich bekannt.A special feature of serving as a reservoir hose winding 10 is the piggability. The pig 12 located in the paint hose FM of the hose winding 10 can be pushed by compressed air from the aforementioned compressed air connection through the entire hose winding to press the coating material therein to the metering pump DP. Suitable pigs are known per se.

Bei der folgenden Erläuterung der Betriebsweise sei angenommen, daß der Zerstäuber Z am Flansch 14 lösbar am Roboterhandgelenk 1 montiert ist und zum Befüllen der Schlauchwicklung 10 mit Beschichtungsmaterial abgenommen und an die in Fig. 2 dargestellte, auch als Zerstäuberwechsel- und Spülstation dienende Befüllstation 20 angeschlossen wird.In the following explanation of the operation, it is assumed that the atomizer Z on the flange 14 is detachably mounted on the robot wrist 1 and removed for filling the tube winding 10 with coating material and to the in Fig. 2 illustrated Also serving as atomizer changing and rinsing station filling station 20 is connected.

Der in Fig. 2 mit ZA bezeichnete Zerstäuber enthält den zwischen die Dosierpumpe DPA und das hier als Rotationsglocke dargestellte Zerstäubungsorgan geschalteten Ventilblock 22 mit dem üblichen Hauptnadelventil HNA für das von der Pumpe DPA gespeiste Zerstäubungsorgan und einem abzweigenden Farbversorgungsventil V1A. Von der die Dosierpumpe DPA auf ihrer entgegengesetzten Seite mit dem Farbschlauch FMA verbindenden Leitung zweigt über ein Ventil V2A eine Spül- und Rückführungsleitung ab. An dem der Pumpe DPA abgewandten Ende ist der Farbschlauch FMA an eine Druckluftleitung mit einem Druckluftventil V3A angeschlossen.The in Fig. 2 ZA designated atomizer contains the between the metering pump DPA and here shown as a rotary bell atomizer organ valve block 22 with the usual main needle valve HNA for powered by the pump DPA atomizer and a branching ink supply valve V1A. From the line connecting the dosing pump DPA on its opposite side with the paint hose FMA line branches off via a valve V2A a purge and return line. At the end facing away from the pump DPA, the paint hose FMA is connected to a compressed air line with a compressed air valve V3A.

Die Befüllstation 20 enthält ein mit dem zerstäuberseitigen Wechselsystem WZA zusammenkuppelbares Wechselsystem WWS, zu dem ein mechanisch mit der Dosierpumpe DPA kuppelbarer Antriebsmotor M gehört. Ferner enthält die Station 20 eine bei angekuppeltem Zerstäuber mit dem Ventil V2A verbundene Spülventilanordnung SV mit einem Spülmittelventil S10, einem Pulsluftventil PL10 und einem Rückführungsventil RF10 sowie einen mit dem Ventil V1A verbundenen Farbwechsler FW mit Farbventilen F1-F4, Spülmittel- und Pulsluftventilen S bzw. PL und einem Rückführungsventil RF. Aus dem Farbwechsler FW wird das gewählte Beschichtungsmaterial durch das Ventil V1A und die Dosierpumpe DPA in das ihr zugewandte Ende des molchbaren Farbschlauches FMA gedrückt, um diesen zu befüllen, wobei der Molch 12A in Richtung zu dem entgegengesetzten Schlauchende geschoben wird.The filling station 20 contains a change-over system WWS, which can be coupled together with the atomizer-side changeover system WZA and to which a drive motor M which can be coupled mechanically with the metering pump DPA is included. Further, the station 20 includes a coupled with the atomizer with the valve V2A connected Spülventilanordnung SV with a flushing valve S10, a pulse air valve PL10 and a return valve RF10 and connected to the valve V1A color changer FW with color valves F1-F4, detergent and pulse air valves S or PL and a return valve RF. From the color changer FW, the selected coating material is forced through the valve V1A and the metering pump DPA into the end of the piggable paint hose FMA facing it in order to fill it, the pig 12A being pushed towards the opposite end of the hose.

Während der Zerstäuber ZA befüllt wird, kann mit einem an die Roboterhandachse 1 (Fig. 1) angekoppelten anderen Zerstäuber ZB beschichtet werden, wie in Fig. 3 gezeigt ist, wo die Fig. 2 entsprechenden Elementen mit B statt A bezeichnet sind. Das zerstäuberseitige Wechselsystem WZB ist mit dem roboterseitigen Wechselsystem WR zusammengekuppelt. Über das Ventil V3B wird der molchbare Farbschlauch FMB mit Druckluft beaufschlagt, so daß das in dem Schlauch gespeicherte Beschichtungsmaterial von dem Molch 12B zu der Dosierpumpe DPB gedrückt und von dieser zu dem Zerstäubungsorgan gefördert wird. Bei einem Zerstäubertausch mit Farbwechsel ergibt sich somit der folgende Zyklus.While the atomizer ZA is being filled, it is possible to connect to the robot hand axis 1 (FIG. Fig. 1 ) coupled other atomizer ZB be coated, as in Fig. 3 shown is where the Fig. 2 corresponding elements with B instead of A are designated. The atomizer-side change system WZB is with the robot side Interchangeable system WR coupled together. Compressed air is supplied via the valve V3B to the piggable paint hose FMB, so that the coating material stored in the hose is pressed by the pig 12B to the metering pump DPB and conveyed from there to the atomizing member. In a nebulizer replacement with color change thus results in the following cycle.

Lackieren mit Zerstäuber ZB und erster Farbe: Der Zerstäuber ZB befindet sich am Roboter. Die beiden Hälften des Wechselsystems WZB und WR und auch der Antrieb für die Dosierpumpe DPB sind eingekuppelt. Die Ventile V1B und V2B sind geschlossen. Das Ventil V3B gibt Druckluft frei, wodurch der Molch 12B angetrieben wird. Der Molch drückt seinerseits bei seiner Bewegung im Farbschlauch FMB zwischen den Ventilen V3B und V2B die erste Farbe zur Dosierpumpe DPB, die mit der eingestellten Lackierdrehzahl die Farbe dosiert, wobei sie von dem Motor M im Roboter angetrieben wird. Der Molch trennt hierbei den Lack von der als Molchtreibmedium dienenden Druckluft und sorgt gleichzeitig für die Reinigung der Farbschlauchwände. Bei geöffnetem Hauptnadelventil HNB strömt der Farblack zu dem Zerstäubungsorgan. Der Zerstäuber ZB arbeitet unter Hochspannung.Spraying with atomizer ZB and first color: The atomizer ZB is located on the robot. The two halves of the exchange system WZB and WR and also the drive for the dosing pump DPB are engaged. The valves V1B and V2B are closed. Valve V3B releases compressed air, driving pig 12B. For its part, the pig, as it moves in the paint hose FMB between the valves V3B and V2B, presses the first ink to the metering pump DPB, which meters the ink at the set coating speed and is driven by the motor M in the robot. The pig separates the paint from the compressed air used as a pig driving medium and at the same time ensures the cleaning of the paint hose walls. When the main needle valve HNB is open, the paint flows to the atomizing device. The atomizer ZB works under high voltage.

Start eines Farbwechselprogramms in der Zerstäuberwechsel-, Spül- und Befüllstation 20: Bei einem anstehenden Farbwechsel wird durch die Anlagensteuerung ein automatisches Spül- und Andrückprogramm gestartet. Während des Versprühens der ersten Farbe durch den Zerstäuber ZB wird der andere Zerstäuber ZA, der sich in der Zerstäuberwechsel- und Spülstation 20 befindet, für die nächste Lackieraufgabe vorbereitet. Hier sind die beiden Hälften des Wechselsystems WZA und WWS eingekuppelt. Alle Ventile der Station 20 befinden sich in ihrer Grundstellung.Start of a color change program in the atomizer change, rinse and fill station 20: In the event of a pending color change, the system controller starts an automatic rinse and pressure program. During the spraying of the first paint through the atomizer ZB, the other atomizer ZA, which is located in the atomizer changing and rinsing station 20, is prepared for the next painting task. Here the two halves of the exchange system WZA and WWS are engaged. All valves of station 20 are in their normal position.

Spülen des Zerstäubers ZA: Beim anschließenden Spülvorgang befindet sich der Molch 12A im Farbschlauch FMA nahe vor dem Ventil V2A, da angenommen wird, daß er beim letzten Lackiervorgang die gesamte im Farbschlauch befindliche Farbe ausgedrückt hat (eventuell mit Ausnahme eines Sicherheitsvolumens). Das Ventil V3A ist geöffnet, so daß der Molch mit Druckluft beaufschlagt ist. Nun öffnet das Ventil V2A, wodurch das durch wechselseitiges Öffnen der Ventile V10 und PL10 am Steuerventil SV entstehende Spülmittel-Luft-Gemisch über die mit Spüldrehzahl laufende Dosierpumpe DPA und durch das geöffnete Ventil HNA strömt. Dadurch wird der Zerstäuber ZA vom Ventil V2A über die Dosierpumpe DPA gespült. (Beim Spülen ist der Druck der den Molch über das Ventil V3A beaufschlagenden Druckluft größer als der Druck des Spülmittel-Luft-Gemisches.) Die Dosierpumpe DPA wird von dem Motor M in der Station 20 angetrieben. Kurzzeitig wird dann bei geschlossenem Ventil HNA über das Ventil V1A bei geöffnetem Ventil RF der Farbwechsler FW gespült. Zum Abschluß des Spülvorgangs kann das gesamte System mit einem kurzen Pulsluftintervall trockengeblasen werden.Flushing the atomiser ZA: During the subsequent rinsing process, the pig 12A is located in the paint hose FMA close to the nozzle Valve V2A, as it is assumed that during the last painting process it expressed all the paint in the paint hose (possibly with the exception of one safety volume). The valve V3A is opened, so that the pig is acted upon with compressed air. The valve V2A now opens, as a result of which the detergent-air mixture produced by the mutual opening of the valves V10 and PL10 on the control valve SV flows via the metering pump DPA running with purging speed and through the opened valve HNA. As a result, the atomizer ZA is flushed from the valve V2A via the metering pump DPA. (During purging, the pressure of the pressurized air applied to the pig via the valve V3A is greater than the pressure of the rinse-medium / air mixture.) The dosing pump DPA is driven by the motor M in the station 20. For a short time, the color changer FW is then rinsed via the valve V1A with the valve RF open when the valve HNA is closed. At the conclusion of the rinsing process, the entire system can be blown dry with a short pulse air interval.

Andrücken der zweiten Farbe im Zerstäuber ZA: Der Molch 12A befindet sich bei geöffnetem Ventil V3A in der Nähe des Ventils V2A. Nach beendetem Spülvorgang werden die Ventile F2, V1A, V2A und RF10 geöffnet, wodurch die zweite Farbe in den Farbkanal gelangt. Die Dosierpumpe DPA läuft rückwärts mit Andrückdrehzahl. Nach einer vom Steuerprogramm entsprechend dem Fördervolumen der Dosierpumpe vorgegebenen Zeit wird das Ventil V2A geschlossen, so daß eventuell im Farbschlauch verbliebenes Spülmedium verdrängt und das System entlüftet wird. Nachdem das Ventil V2A geschlossen ist, wird der Molch von der Lacksäule gegen den Druck der Druckluft zu seiner anderen Endposition in der Nähe des Ventils V3A geschoben. Nach Erreichen der gewünschten Farbmenge mit Hilfe der Dosierpumpe ist der Andrückvorgang beendet. Alle erwähnten Ventile gehen wieder in ihre Grundstellung. Der Zerstäuber ZA ist nun für den nächsten Lackiervorgang vorbereitet und verharrt in der Station 20 bis zum nächsten Zerstäuberwechsel.Pressing the second paint in the atomizer ZA: The pig 12A is located near the valve V2A with the valve V3A open. After flushing the valves F2, V1A, V2A and RF10 are opened, whereby the second color passes into the color channel. The dosing pump DPA runs backwards with pressure. After a predetermined time by the control program according to the delivery volume of the metering pump, the valve V2A is closed so that any remaining in the paint hose flushing medium displaced and the system is vented. After the valve V2A is closed, the pig is pushed by the paint column against the pressure of the compressed air to its other end position near the valve V3A. After reaching the desired amount of ink by means of the metering pump, the pressing operation is completed. All valves mentioned go back to their normal position. The atomizer ZA is now prepared for the next painting process and remains in station 20 until the next atomizer change.

Start des Zerstäuberwechselprogramms und Wechsel vom Zerstäuber ZB zum Zerstäuber ZA: Nach Beendigung des Lackiervorgangs mit dem Zerstäuber ZB werden die Dosierpumpe DPB gestoppt, das Ventil HNB geschlossen und anschließend die Hochspannung heruntergefahren. Nun kann der Zerstäuber ZB gegen den Zerstäuber ZA ausgewechselt und beispielsweise ein nächstes Werkstück mit der zweiten Farbe lackiert werden.Start of the atomizer change program and change from the atomizer ZB to the atomizer ZA: After completing the painting process with the atomizer ZB, the dosing pump DPB is stopped, the valve HNB is closed and then the high voltage is shut down. Now the atomizer ZB can be replaced with the atomizer ZA and, for example, a next workpiece with the second color can be painted.

Die beschriebene Betriebsweise ist nur ein Beispiel. Das in Fig.4 allgemeiner dargestellte erfindungsgemässe Zerstäubersystem mit dem Anschlussflansch 16, der molchbaren Leitungsspirale 10, der beispielsweise nur in Richtung zum Zerstäubungsorgan 4 fördernden Pumpe P und der dazwischengeschalteten Ventileinheit 22' kann auf beliebige sonstige Weise betrieben werden.The described mode of operation is just one example. This in Figure 4 More generally represented inventive atomizer system with the connection flange 16, the piggable conduit spiral 10, the pump P and the interposed valve unit 22 ', for example, only in the direction of the atomizing organ 4 can be operated in any other way.

Die Erfindung ist auch nicht auf die beschriebenen Beispiele beschränkt, sondern auf die beigefügter Ansprüche.The invention is not limited to the examples described, but to the attached claims.

In dem hier beschriebenen Zerstäuber kann sich u.a. auch die übliche, für die elektrostatische Beschichtung erforderliche Hochspannungskaskade befinden.In the atomizer described here u.a. also the usual high voltage cascade required for the electrostatic coating.

Claims (15)

  1. Atomiser for a coating machine, the housing (3) of which is or can be mounted on a movable wrist joint (1) of the machine and a storage means (FM) which serves as a storage container for the coating material and is connected to the atomising device (4), wherein the coating material can be delivered from a metering device or a metering pump (DP) to the atomiser, characterised in that a metering pump (DP), which is connected between the storage means (FM) and the atomising device (4) and delivers the coating material thereto, is located in the atomiser housing (3).
  2. Atomiser as claimed in Claim 1, characterised in that the storage means is formed by a spiral coiled hose (10) or a spiral tube.
  3. Atomiser as claimed in Claims 1 and 2, characterised in that the metering pump (DP) is disposed spatially within the coiled hose (10) or spiral tube.
  4. Atomiser as claimed in any one of the preceding claims, characterised in that a geared pump is provided as a metering pump (DP).
  5. Atomiser as claimed in any one of the preceding claims, characterised in that the metering pump is reversible in such a way that it can convey in directions opposed to one another.
  6. Atomiser as claimed in any one of Claims 2 to 5, characterised in that a pig (12) is provided which is movable through the coiled hose (10) or spiral tube and pushes the coating material out of the hose (FM) or tube in the direction towards the atomising device (4) and for this purpose is acted upon by a pressure medium on its side facing away from the coating material.
  7. Atomiser as claimed in Claim 6, characterised in that the pig (12) is driven by compressed air.
  8. Atomiser as claimed in Claim 6 or 7, characterised in that the coiled hose (1) or spiral tube is or can be connected at its material outlet end outside the hose (FM) or tube to the external material supply system (FW) of the atomiser.
  9. Atomiser as claimed in any one of the preceding claims, characterised in that in one direction the coating material is conveyed out of the storage means (FM) to the atomising device (4) by the reversible metering pump (DP), whilst in the opposing conveying direction coating material delivered between the pump and the atomising device is conveyed by the metering pump into the storage means (FM).
  10. Atomiser as claimed in any one of the preceding claims, characterised in that the metering pump (DP) can be coupled by way of a flexible shaft to a motor (M) which is disposed outside the atomiser.
  11. Atomiser as claimed in Claim 10 on a painting robot, characterised in that the flexible shaft is driven by a gearing system disposed in or on the robot wrist joint (1) on which the atomiser is mounted.
  12. Atomiser as claimed in any one of Claims 1 to 9, characterised in that the metering pump (DP) is driven by an electric motor located in the atomiser.
  13. Method of supplying material to an atomiser for a coating machine, the housing (3) of which is or can be mounted on a wrist joint (1) of the machine and contains a storage means (FM), which serves as a storage container for the coating material and is connected to the atomising device (4), as well as a metering pump (DP) which is connected between the storage means (FM) and the atomising device (4) and delivers the coating material to the atomising device, characterised in that for filling of the storage means (FM) the coating material is led into the connection between the storage means (FM) and the metering pump (DP) or into the connection between the metering pump (DP) and the atomising device, and that during coating the coating material is forced by compressed air out of the storage means (FM) into the metering pump (DP) which conveys the material to the atomising device (4).
  14. Method as claimed in Claim 13, characterised in that for filling the coating material is forced by the metering pump (DP) into the storage means (FM).
  15. Method as claimed in Claim 12 or 13, characterised in that the coating material is forced by a pig (19) through a line which forms the storage means (FM)
EP02006091A 2001-03-29 2002-03-18 Sprayer for a coating installation and process for feeding coating material to the sprayer Expired - Lifetime EP1245294B1 (en)

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DE10115463A DE10115463A1 (en) 2001-03-29 2001-03-29 Atomizer for a coating system and process for its material supply
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Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060090286A1 (en) * 2004-11-03 2006-05-04 Day H S Tandem, extendable tubing or hose assembly
DE102004058054A1 (en) * 2004-12-01 2006-06-08 Dürr Systems GmbH Automatically controlled coating machine with a container for the coating material
US20060240312A1 (en) * 2005-04-25 2006-10-26 Tao Xie Diffusion media, fuel cells, and fuel cell powered systems
HUE043560T2 (en) 2005-10-07 2019-08-28 Duerr Systems Ag Supply device for a coating agent and appropriate operating method
US8418647B2 (en) * 2005-10-21 2013-04-16 Dürr Systems Inc. Procedure and piston type metering devices for the metered material supply for a coating device
US7908994B2 (en) 2005-10-21 2011-03-22 Duerr Systems, Inc. Automatically steered coating machine also a container for the coating material
DE102006041677B4 (en) * 2006-09-06 2019-05-29 Eisenmann Se System for cleaning media-carrying paths in a coating system
DE102006048037B4 (en) * 2006-10-09 2010-07-08 Poma Sondermaschinen- Und Vorrichtungsbau Gmbh Fluid supply device for a spray system
MX2009006196A (en) 2006-12-12 2009-07-09 Duerr Systems Gmbh Coating apparatus comprising a metering device.
DE102007029195A1 (en) 2007-06-25 2009-02-19 Dürr Systems GmbH Coating device for serially coating workpieces with different shades comprises a separate color changer containing color valves to which are connected color lines for the coating material
DE102006058562A1 (en) 2006-12-12 2008-08-14 Dürr Systems GmbH Coating device for serially coating workpieces with different shades comprises a separate color changer containing color valves to which are connected color lines for the coating material
DE102007053073A1 (en) * 2007-11-07 2009-06-04 Dürr Systems GmbH application system
ES2399882T3 (en) * 2007-12-28 2013-04-04 Industra Industrieanlagen - Maschinen Und Teile Gmbh Paint color changer system and procedure to change a paint color
USD770695S1 (en) * 2014-05-07 2016-11-01 Dürr Systems GmbH Cleansing station for cleaning rotary atomizers for painting robots
EP3205407B1 (en) * 2016-02-09 2019-09-25 IPR-Intelligente Peripherien für Roboter GmbH Method and installation for covering internal walls of a cavity with a protective layer made of corrosion protecting wax
WO2021023871A1 (en) * 2019-08-08 2021-02-11 Aim Robotics Aps Autonomous dispensing effector unit for a robotic arm
FR3135405A1 (en) * 2022-05-16 2023-11-17 Exel Industries Pipe shaping guide, coating product sprayer comprising such a guide and coating product application installation comprising such a sprayer

Family Cites Families (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US767005A (en) * 1903-08-20 1904-08-09 John A Mccoy Shoe-lacing and fastening therefor.
US4020866A (en) * 1973-12-03 1977-05-03 The Gyromat Corporation Pressure vessel for voltage block material supply system
US4105116A (en) * 1976-10-29 1978-08-08 Beatrice Foods Co. Sample-containing envelope assembly
US4137623A (en) * 1978-04-07 1979-02-06 Taylor Industries, Inc. Method and apparatus for dispensing fluid in a conduit
US4342128A (en) * 1980-09-25 1982-08-03 Doyle Thomas P Wiper device for removal of snow and liquid from ski glasses or goggles
US4376135A (en) * 1981-03-20 1983-03-08 Binks Manufacturing Company Apparatus for atomization in electrostatic coating and method
DE3214314A1 (en) * 1982-04-19 1983-10-20 J. Wagner AG, 9450 Altstätten ELECTROSTATIC SPRAYER
GB8320827D0 (en) * 1983-08-02 1983-09-01 Sale Tilney Technology Ltd Coating workpieces
US4589597A (en) * 1983-10-03 1986-05-20 Graco Inc. Rotary atomizer spray painting device
DE3429075A1 (en) 1984-08-07 1986-02-20 Hermann Behr & Sohn Gmbh & Co, 7121 Ingersheim Device for the electrostatic coating of articles
ES288858Y (en) 1984-08-07 1986-10-01 Hermann Behr & Sohn Gmbh & Co. DEVICE FOR ELECTROSTATIC COATING OF OBJECTS
CH668008A5 (en) * 1985-04-30 1988-11-30 H U Ramseier Fa ELECTROSTATIC POWDER COATING SYSTEM.
US4684064A (en) * 1985-08-19 1987-08-04 Graco Inc. Centrifugal atomizer
EP0227845B1 (en) * 1985-11-19 1990-05-30 International Business Machines Corporation Method and apparatus for controlling the flying height of the head in a magnetic storage unit
US4728034A (en) * 1986-02-06 1988-03-01 Trinity Industrial Corporation Cleaning device upon color-change in an electrostatic mutli-color coating apparatus
DE3609240C2 (en) 1986-03-19 1996-08-01 Behr Industrieanlagen Device for the electrostatic coating of objects
SE449451B (en) * 1986-03-24 1987-05-04 Leif Tilly SET AND DEVICE TO SUPPLY AN ELECTRIC CONDUCTIVE, LIQUID MEDIUM FROM A STOCK SYSTEM TO A CONSUMER STATION
US4919333A (en) * 1986-06-26 1990-04-24 The Devilbiss Company Rotary paint atomizing device
EP0283918B1 (en) * 1987-03-23 1991-07-10 Behr Industrieanlagen GmbH & Co. Device for electrostatic coating of objects
DE3720201C1 (en) * 1987-06-16 1988-09-08 Ransburg Gmbh Spray coating device with a ring-shaped electrode arrangement for electrically conductive coating liquids
FR2621500B2 (en) * 1987-08-14 1990-03-16 Sames Sa INSTALLATION FOR SPRAYING COATING PRODUCTS SUCH AS FOR example A WATER-SOLUBLE PAINT
US4884752A (en) * 1987-11-18 1989-12-05 The Deilbiss Company Electrostatic paint spray system with dual voltage isolating paint reservoirs
JPH0195269U (en) * 1987-12-18 1989-06-23
US4927081A (en) * 1988-09-23 1990-05-22 Graco Inc. Rotary atomizer
DE3920981A1 (en) * 1989-06-27 1991-01-10 Ist Molchtechnik Gmbh PIPING PIG
US5078321A (en) * 1990-06-22 1992-01-07 Nordson Corporation Rotary atomizer cup
DE4105116C2 (en) 1991-02-19 2003-03-27 Behr Industrieanlagen Apparatus and method for the electrostatic coating of objects
DE4121455C2 (en) * 1991-06-28 1994-10-27 Wagner Int Device for feeding powder coating devices with a powder-air mixture
US5221047A (en) * 1991-08-13 1993-06-22 Gmfanuc Robotics Corporation Method and system for cleaning a paint supply line and changing paint colors in production paint operations
US5397063A (en) * 1992-04-01 1995-03-14 Asahi Sunac Corporation Rotary atomizer coater
CA2135617C (en) * 1992-05-15 1999-12-07 Ole Arnt Anfindsen Paint dosage device for program controlled spray painting system
US5633306A (en) * 1992-12-03 1997-05-27 Ransburg Corporation Nonincendive rotary atomizer
DE4306800C2 (en) * 1993-03-04 1998-07-02 Duerr Gmbh & Co Coating device with a rotary atomizer
JP3489035B2 (en) 1993-04-07 2004-01-19 ノードソン株式会社 Powder coating equipment
US5300006A (en) * 1993-07-02 1994-04-05 Okuma Machine Tools Inc. Automatic tool changer
DE4342128A1 (en) 1993-12-10 1995-06-14 Abb Patent Gmbh Paint sprayer
JPH08108114A (en) * 1994-10-07 1996-04-30 Abb Ransburg Kk Coating apparatus
ES2188744T3 (en) 1995-04-06 2003-07-01 Abb Kk TYPE COATING DEVICE PRESENTING A ROTATING SPRAY HEAD.
US5683032A (en) * 1995-06-29 1997-11-04 Ford Global Technologies, Inc. Air measuring apparatus and method for paint rotary bell atomizers
JP3322100B2 (en) * 1995-11-09 2002-09-09 日産自動車株式会社 Rotary atomizing electrostatic coating equipment
DE19610588B4 (en) 1996-03-18 2010-08-05 Dürr Systems GmbH Coating machine with replaceable container
DE19611369A1 (en) 1996-03-22 1997-09-25 Duerr Gmbh & Co Rotary atomizer for electrostatically assisted coating of objects with paints or varnishes
JPH09276750A (en) 1996-04-16 1997-10-28 Toyota Motor Corp Rotary-atomization electrostatic coater
DE19709988C2 (en) 1997-03-11 2002-01-24 Inlac Ind Lackieranlagen Gmbh Painting device with several circular color lines
SE512001C2 (en) * 1997-04-03 2000-01-10 Abb Flexible Automation As Device for automatic application of varnish
JPH1119553A (en) * 1997-07-01 1999-01-26 Honda Motor Co Ltd Multicolor coating device
DE19728155A1 (en) * 1997-07-03 1999-01-07 Lactec Gmbh Cleaning and preparation method for paint spray pipe
DE19742588B4 (en) * 1997-09-26 2009-02-19 Dürr Systems GmbH Method for serial coating of workpieces
KR100320343B1 (en) 1998-01-13 2002-01-12 라붸 린도베르 Rotary atomizing head type coating device
DE19805938A1 (en) * 1998-02-13 1999-08-19 Lactec Gmbh Method and device for coating parts
DE19830029A1 (en) 1998-07-04 2000-01-05 Audi Ag Painting rig for vehicle bodywork
DE19909369A1 (en) 1999-03-03 2000-09-21 Daimler Chrysler Ag Electrostatic atomizer with housing has area of housing facing bell-shaped disc or part (air guidance ring) connected to housing with at least one earthed collection electrode
JP3648134B2 (en) 1999-07-13 2005-05-18 Ａｂｂ株式会社 Automatic painting equipment
DE19937425A1 (en) 1999-08-07 2001-03-15 Eisenmann Lacktechnik Kg Painting device for powder coating
DE19959473A1 (en) * 1999-12-10 2001-06-13 Frederic Dietrich Device and method for the pneumatic conveying of powdery substances and use of the device
DE19961271A1 (en) 1999-12-18 2001-07-05 Duerr Systems Gmbh Painting device
DE10001570A1 (en) 2000-01-15 2001-07-19 Lactec Gmbh Electrostatic rotary atomizer
JP3803034B2 (en) * 2000-03-15 2006-08-02 株式会社大気社 Painting equipment
DE10033986A1 (en) 2000-07-13 2002-01-24 Duerr Systems Gmbh Process for using a pig in a coating installation and pig therefor
DE10033987A1 (en) 2000-07-13 2002-01-24 Duerr Systems Gmbh Process for supplying a coating member for the electrostatic series coating of workpieces and supply system therefor
DE10059041C2 (en) * 2000-11-28 2002-11-14 Lactec Ges Fuer Moderne Lackte Method and device for conveying electrically conductive paints between different voltage potentials
DE10063234C1 (en) 2000-12-19 2002-07-04 Duerr Systems Gmbh Hose system, for coating vehicle bodywork, has an inner hose with a moving pig through it held without kinks in an outer hose by compressed air in the ring zone between them
DE10115470A1 (en) 2001-03-29 2002-10-10 Duerr Systems Gmbh Coating system with an atomizer change station
DE10130173A1 (en) 2001-06-22 2003-01-02 Duerr Systems Gmbh Powder coating plant
DE10202712A1 (en) 2002-01-24 2003-07-31 Duerr Systems Gmbh Method for controlling the spray jet width of an atomizer and atomizer for the serial coating of workpieces

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ATE392956T1 (en) 2008-05-15
US20040124292A1 (en) 2004-07-01
ES2304405T3 (en) 2008-10-16
US20050230503A1 (en) 2005-10-20
EP1245294A3 (en) 2005-07-13
US7051950B2 (en) 2006-05-30
EP1245294A2 (en) 2002-10-02
DE10115463A1 (en) 2002-10-02
DE50212127D1 (en) 2008-06-05

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