EP0796664B1 - Process and system for supply paint to a coating installation - Google Patents
Process and system for supply paint to a coating installation Download PDFInfo
- Publication number
- EP0796664B1 EP0796664B1 EP97104632A EP97104632A EP0796664B1 EP 0796664 B1 EP0796664 B1 EP 0796664B1 EP 97104632 A EP97104632 A EP 97104632A EP 97104632 A EP97104632 A EP 97104632A EP 0796664 B1 EP0796664 B1 EP 0796664B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- installation
- valve block
- opening
- piston
- 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.)
- Expired - Lifetime
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Classifications
-
- 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
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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
- 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
- B05B12/1463—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 separate containers for different materials to be sprayed being moved from a first location, e.g. a filling station, where they are fluidically disconnected from the spraying apparatus, to a second location, generally close to the spraying apparatus, where they are fluidically connected to the latter
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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
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0431—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to 3D-surfaces
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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
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
Definitions
- the invention relates to a coating system with a spray device that in the Operation with a container for the coating material to be sprayed connected is.
- a painting robot known from EP-PS 0 274 322 becomes a replaceable container for filling by the painting robot even on the wall of the spray booth Tapping points coupled and from there again after filling picked up.
- the container, its inlet and outlet openings are in its cylindrical side wall, from the robot without too much difficulty at the valve openings of the taps can be connected, it must be on the outside of the Wrist of the robot or at least one movement member be arranged, the relative to which usually only for rough positioning serving robot arm is movable.
- the automatic docking is still not easy, and it there is a relatively high tax expenditure for those to connect necessary robot movements.
- the dynamic movement behavior of the robot in the wrist area be affected.
- the aim of the invention is a coating system, the interchangeable Container easy and with little tax the valve unit of the spray device can be coupled.
- the system described here is not intended to be the container itself bring to the filling position.
- the container can, for example, in the case of a mechanical coating device a movable arm of the machine in one position brought in a convenient handling device, which in particular a linear movement perpendicular to the receiving device executes, insert and remove the container.
- the container can also be handled by a device in the opening of a stationary housing or other Plant part are used.
- the handling device he can very easily to the also provided inside the arm or housing part Valve unit of the spray device connected and when removing be separated from her. All to the sprayer too leading supply and control lines can in Run inside the machine or system.
- the container In the operation of a painting robot, the container only has to Join the arm movements of the machine, but not the additional ones Axis movements of the sprayer. Furthermore, the Container inside the arm or housing part can be easily insulated, if in electrostatic coating operation with conductive Material is placed on high voltage. Good insulation options arise especially when the arm or the housing part via a to isolate the spray device and the container of earthed parts of the system sufficient Length consists of insulating material.
- Another advantage of the invention is that a as Dosing cylinder designed with a sliding piston Container inside the arm or housing part very easily an electromechanical control drive for metered emptying of the container can be coupled.
- a when removing the container remaining in the system and on the container can be coupled by a piston rod Electric servomotor also built into the system whose type e.g. that in a coating machine motors intended for axis drive can.
- Fig. 1 the arm 1 of a painting robot is shown. He consists essentially of an elongated housing 3, that at its right end in the drawing, not shown Way is movably mounted and at its opposite End further additional in a known manner movable links including a wrist or hand axis construction 2 carries, on which the spray device is arranged is. Through the inside of the hand axis construction 2 do not lead the necessary lines from (in Fig. 1 ) to a sprayer at the end of the arm whose housing 3 built-in valve block 4th
- the housing 3 of the arm 1 is closed to the outside with one exception an opening 6 on one side of the arm, which is so long and wide that a cylindrical container 8 in its illustrated position, in its own Longitudinal axis to that of the arm 1 is parallel, through the opening 6 can be used in an interior of the housing 3 located there and can be removed after use.
- the container 8 has a in its end face facing the valve block 4 Exhaust valve opening 10 which with the emptying of the container one of the front end of the container facing the inlet Valve block 4 is aligned. The exact alignment is confirmed by on Valve block and centering means 12 provided at the end of the container achieved when axially pressing and coupling the container 8 come into engagement with each other on the valve block 4.
- a second valve opening located in the front end of the container 8 is used to fill, empty and / or rinse the container at a filling point away from the system.
- a pneumatic locking cylinder 30 is provided, its member that can be pushed against the container in the drawing is not shown.
- the container 8 is designed as a metering cylinder. It contains a dosing piston that can be moved in the container to empty it 14, the at or before filling the container on the remote filling point by an automatically controlled electromechanical drive mechanism placed in one position can be in which it has a predetermined filling volume for the coating material filled through one of the valve openings 10 Are defined. In the example shown, this is total container volume, but in other cases, a volume be discontinued, including a necessary one Reserve just for a predetermined coating process is sufficient. When it is completely empty, the dosing piston is in place 14 on the inner wall of the front end of the container 8, as in 14 'is shown.
- the piston rod 18 At its end facing the container 8 is the piston rod 18 in the pneumatic for locking the container Locking cylinder 30 stored.
- a pneumatic stop sensor 32 In the end face of the piston rod 18 sits a pneumatic stop sensor 32, the one pneumatic signal generated when the piston rod 18 against pushes the dosing piston 14.
- the coating machine described here can in itself work with any spray device. But if one electrostatic spraying device, in particular for spraying of electrically conductive coating material is provided, that the valve block 4 and the suitably made of pressure-resistant metal can put existing container 8 at high voltage potential, must have adequate electrical insulation to the usual grounded metallic parts of the system.
- the expanding housing part 20 are made of aluminum.
- the housing 3 of the robot arm shown 1 is therefore from the valve block 4 to the housing part 20 made of a mechanically stable plastic or other Insulating material.
- the length of the insulating housing 3 is so dimension that the required insulating distance 33 between the rear end of the appropriately metallic locking cylinder 30 and the metallic housing part 20 results.
- the Piston rod 18 is also made of insulating material.
- Fig. 2 is the supply system of an electrostatic Spray device 35 shown, for example may be a known type of rotary atomizer and the coating material from the container 8 installed in the robot arm 1 should spray.
- the main needle valve of the sprayer 35 stands when the container is inserted and coupled 8 via a line HN and one in the control valve block 4 included color valve F with the inlet opening 37 of the valve block and consequently the valve opening 10 of the container 8 in Connection.
- a detergent line V leads, one of which for briefly rinsing the atomizer bell bypassing the main needle line HN serving line KS into the spray device 35 is branched into the valve block 4 the detergent consisting of thinner if necessary and in particular with a color change in the line HN and to the spraying device.
- Line PL gets compressed air into the valve block and through it Line HN to the spray device 35.
- RF line through which coating material not sprayed especially when changing colors and detergent from the other lines, the control valve block and the spraying device in a collecting container S is directed.
- the lines described are in Inside the movable system elements.
- the lines can spray conductive paint in the area the spray device 35 and the valve block 4 at high voltage potential lie and are therefore in the further course insulated.
- the need for an electrical Insulation is omitted if instead of the electrostatic spray device for example an air atomizer 35 'on the control valve block and the line RF is connected.
- the container 8 is on one of the coating machine filled remote location and preferably outside the usual spray booth from a transport system as in DE patent application 196 10 589.7 from March 18, 1996 is transported to a container exchange point, where it is from gripped a handling device and along a linear Path of movement, for example, through an opening in the cabin wall through into the opening 16 of the housing 3 of that shown in Fig. 1 Armes 1 can be used.
- the container 8 can for example on one side with a handle 38 (FIG. 1) be on which he from a gripper 39 of the handling device mentioned is taken. Pressing and coupling to the valve block 4 takes place automatically. After use the container the arm 1 from the handling device again taken, which at the same time a new one, as needed with the same or another color filled container, if it is not more convenient, for insertion and removal to use separate devices.
- the invention is not based on the example described Painting robot limited, but also with any other mechanical or manual coating devices applicable.
- the containers are typically in an opening one in the rest closed stationary housing or other system part used where they are then in the on the basis of FIGS. 1 and 2 described way can be coupled.
- a convenient method is, for example, the Feed containers in transportable magazines, which they for transfer and insertion in the opening of the system section are removed and into which they are used and removed the opening for removal can be used again.
- the containers 8 used themselves have numerous advantageous ones Characteristics. They are suitable for dosing, can be airtight and designed as a pressure vessel offer protection against Aging of the coating material, serve as a transport container, Color memory and for decoupling the coating device of ring lines or other paint supply systems, are location independent, flushable and reusable and can easily be used with identification data to identify your Content or other important circumstances such as of the filling date. Furthermore, they are simple graspable and easy to center and lock when coupling.
Description
Die Erfindung betrifft eine Beschichtungsanlage mit einer Sprühvorrichtung, die im Betrieb mit einem Behälter für das zu versprühende Beschichtungsmaterial verbunden ist.The invention relates to a coating system with a spray device that in the Operation with a container for the coating material to be sprayed connected is.
Bei einem aus der EP-PS 0 274 322 bekannten Lackierroboter wird ein auswechselbarer Behälter zum Befüllen vom Lackierroboter selbst an an der Wand der Sprühkabine vorgesehene Zapfstellen angekoppelt und von dort nach dem Befüllen wieder abgeholt. Damit der Behälter, dessen Ein- und Auslaßöffnungen sich in seiner zylindrischen Seitenwand befinden, vom Roboter ohne zu große Schwierigkeiten an die Ventilöffnungen der Zapfstellen angeschlossen werden kann, muß er an der Außenseite des Handgelenks des Roboters oder wenigstens eines Bewegungsgliedes angeordnet sein, das relativ zu dem üblicherweise nur zur groben Positionierung dienenden Roboterarm bewegbar ist. Der automatische Ankoppelvorgang ist dennoch nicht einfach, und es ergibt sich relativ hoher Steueraufwand für die zum Ankoppeln notwendigen Roboterbewegungen. Ferner kann durch den Behälter das dynamische Bewegungsverhalten des Roboters im Handgelenkbereich beeinträchtigt werden. Außerdem ergeben sich Isolationsprobleme bei elektrostatischen Sprühvorrichtungen, insbesondere bei Verwendung der leitfähigen Wasserlacke. Weiterhin ist beim Beschichtungsbetrieb nur ein Entleeren des Behälters durch Druckluft vorgesehen, mit der ein Kolben oder eine Membran im Behälter betätigt werden kann, nicht aber eine in manchen Fällen gewünschte mechanische Dosiersteuerung.In a painting robot known from EP-PS 0 274 322 becomes a replaceable container for filling by the painting robot even on the wall of the spray booth Tapping points coupled and from there again after filling picked up. So that the container, its inlet and outlet openings are in its cylindrical side wall, from the robot without too much difficulty at the valve openings of the taps can be connected, it must be on the outside of the Wrist of the robot or at least one movement member be arranged, the relative to which usually only for rough positioning serving robot arm is movable. The automatic docking is still not easy, and it there is a relatively high tax expenditure for those to connect necessary robot movements. Furthermore, through the container the dynamic movement behavior of the robot in the wrist area be affected. There are also insulation problems in electrostatic spraying devices, in particular when using the conductive water-based paints. Furthermore, the Coating company only emptying the container Compressed air is provided with which a piston or a membrane in the Container can be operated, but not one in some Cases desired mechanical dosing control.
Ziel der Erfindung ist eine Beschichtungsanlage, deren auswechselbarer Behälter einfach und mit geringem Steueraufwand an die Ventileinheit der Sprühvorrichtung angekuppelt werden kann.The aim of the invention is a coating system, the interchangeable Container easy and with little tax the valve unit of the spray device can be coupled.
Diese Aufgabe wird durch die im Anspruch 1 gekennzeichnete Anlage gelöst. This object is characterized by that in claim 1 System solved.
Die hier beschriebene Anlage soll den Behälter nicht selbst in die Befüllposition bringen. Zum Auswechseln des Behälters kann im Fall einer maschinellen Beschichtungsvorrichtung beispielsweise ein bewegbarer Arm der Maschine in eine Position gebracht werden, in der eine zweckmäßige Handhabungsvorrichtung, die insbesondere eine Linearbewegung senkrecht zu der Aufnahmevorrichtung ausführt, den Behälter einsetzen und entnehmen. Statt dessen kann der Behälter auch von einer Handhabungsvorrichtung in die Öffnung eines ortsfesten Gehäuse- oder sonstigen Anlagenteils eingesetzt werden. Beim Einsetzen des Behälters mit der Handhabungsvorrichtung kann er sehr einfach an die ebenfalls im Inneren des Armes oder Gehäuseteils vorgesehene Ventileinheit der Sprühvorrichtung angeschlossen und beim Entnehmen von ihr getrennt werden. Auch alle zu der Sprühvorrichtung führenden Versorgungs- und Steuerleitungen können im Inneren der Maschine oder Anlage verlaufen.The system described here is not intended to be the container itself bring to the filling position. For changing the container can, for example, in the case of a mechanical coating device a movable arm of the machine in one position brought in a convenient handling device, which in particular a linear movement perpendicular to the receiving device executes, insert and remove the container. Instead, the container can also be handled by a device in the opening of a stationary housing or other Plant part are used. When inserting the container with the handling device he can very easily to the also provided inside the arm or housing part Valve unit of the spray device connected and when removing be separated from her. All to the sprayer too leading supply and control lines can in Run inside the machine or system.
Im Betrieb eines Lackierroboters muß der Behälter nur die Armbewegungen der Maschine mitmachen, nicht aber die zusätzlichen Achsenbewegungen der Sprühvorrichtung. Ferner ist der Behälter im Inneren des Armes oder Gehäuseteils gut isolierbar, wenn er bei elektrostatischem Beschichtungsbetrieb mit leitfähigem Material auf Hochspannung gelegt wird. Gute Isoliermöglichkeiten ergeben sich vor allem dann, wenn der Arm oder das Gehäuseteil über eine zur Isolierung der Sprühvorrichtung und des Behälters von geerdeten Teilen der Anlage ausreichende Länge aus isolierendem Werkstoff besteht.In the operation of a painting robot, the container only has to Join the arm movements of the machine, but not the additional ones Axis movements of the sprayer. Furthermore, the Container inside the arm or housing part can be easily insulated, if in electrostatic coating operation with conductive Material is placed on high voltage. Good insulation options arise especially when the arm or the housing part via a to isolate the spray device and the container of earthed parts of the system sufficient Length consists of insulating material.
Ein weiterer Vorteil der Erfindung besteht darin, daß ein als Dosierzylinder mit einem verschiebbaren Kolben ausgebildeter Behälter im Inneren des Armes oder Gehäuseteils sehr einfach an einen elektromechanischen Steuerantrieb zum dosierten Entleeren des Behälters angekuppelt werden kann. Insbesondere kann eine beim Entnehmen des Behälters in der Anlage verbleibende und an den eingesetzten Behälter ankuppelbare Kolbenstange von einem ebenfalls in die Anlage eingebauten elektrischen Servomotor angetrieben werden, dessen Typ z.B. den in einer Beschichtungsmaschine zum Achsenantrieb vorgesehenen Motoren entsprechen kann.Another advantage of the invention is that a as Dosing cylinder designed with a sliding piston Container inside the arm or housing part very easily an electromechanical control drive for metered emptying of the container can be coupled. In particular, a when removing the container remaining in the system and on the container can be coupled by a piston rod Electric servomotor also built into the system whose type e.g. that in a coating machine motors intended for axis drive can.
An einem in der Zeichnung dargestellten Ausführungsbeispiel wird die Erfindung näher erläutert. Es zeigen:
- Fig. 1
- einen vereinfachten Längsschnitt durch den Arm eines Lackierroboters; und
- Fig. 2
- eine schematische Darstellung des Systems zum Anschließen des auswechselbaren Behälters an die Sprühvorrichtung.
- Fig. 1
- a simplified longitudinal section through the arm of a painting robot; and
- Fig. 2
- is a schematic representation of the system for connecting the replaceable container to the spray device.
In Fig. 1 ist der Arm 1 eines Lackierroboters dargestellt. Er
besteht im wesentlichen aus einem langgestreckten Gehäuse 3,
das an seinem in der Zeichnung rechten Ende in nicht dargestellter
Weise bewegbar gelagert ist und an seinem entgegengesetzten
Ende in ebenfalls bekannter Weise weitere zusätzliche
bewegbare Glieder einschließlich einer Handgelenk- oder Handachsenkonstruktion
2 trägt, an der die Sprühvorrichtung angeordnet
ist. Durch das Innere der Handachsenkonstruktion 2
führen die erforderlichen Leitungen von der (in Fig. 1 nicht
dargestellten) Sprühvorrichtung zu einem am Ende des Armes in
dessen Gehäuse 3 fest eingebauten Ventilblock 4.In Fig. 1, the arm 1 of a painting robot is shown. He
consists essentially of an
Das Gehäuse 3 des Armes 1 ist nach außen geschlossen mit Ausnahme
einer auf einer Seite des Armes befindlichen Öffnung 6,
die so lang und breit bemessen ist, daß ein zylindrischer Behälter
8 in seiner dargestellten Lage, in der seine eigene
Längsachse zu der des Armes 1 parallel liegt, durch die Öffnung
6 in einen dort befindlichen Innenraum des Gehäuses 3 einsetzbar
und nach Gebrauch wieder herausnehmbar ist. Der Behälter 8
hat in seiner dem Ventilblock 4 zugewandten Stirnfläche eine
Auslaßventilöffnung 10, die beim Entleeren des Behälters mit
einer dem Stirnende des Behälters zugewandten Einlaßöffnung des
Ventilblocks 4 fluchtet. Die genaue Ausrichtung wird durch am
Ventilblock und am Behälterende vorgesehene Zentriermittel 12
erreicht, die beim axialen Andrücken und Ankoppeln des Behälters
8 an den Ventilblock 4 miteinander in Eingriff kommen.
Eine im Stirnende des Behälters 8 befindliche zweite Ventilöffnung
dient zum Füllen, Entleeren und/oder Spülen des Behälters
an einer von der Anlage entfernten Füllstelle. Zum Andrücken
des Behälters an den Ventilblock 4 und zu seiner Arretierung
ist ein pneumatischer Arretierzylinder 30 vorgesehen,
dessen gegen den Behälter schiebbares Glied in der Zeichnung
nicht dargestellt ist.The
Der Behälter 8 ist als Dosierzylinder ausgebildet. Er enthält
einen im Behälter zu dessen Entleerung verschiebbaren Dosierkolben
14, der bei oder vor dem Befüllen des Behälters an der
entfernten Befüllstelle durch einen selbsttätig gesteuerten
elektromechanischen Antriebsmechanismus in eine Position gestellt
werden kann, in der er ein vorbestimmtes Füllvolumen für
das durch eine der Ventilöffnungen 10 eingefüllte Beschichtungsmaterial
definiert. Bei dem dargestellten Beispiel ist dies das
gesamte Behältervolumen, doch kann in anderen Fällen ein Volumen
eingestellt werden, das einschließlich einer notwendigen
Reserve gerade für einen vorbestimmten Beschichtungsvorgang
ausreicht. Bei vollständiger Entleerung liegt der Dosierkolben
14 an der Innenwand des Stirnendes des Behälters 8 an, wie bei
14' dargestellt ist.The
Zum dosierten Entleeren des Behälters 8 greift durch eine im
rückwärtigen Behälterende vorgesehene Öffnung 16 eine im
Gehäuse 3 längs dessen Längsachse verschiebbar gelagerte Kolbenstange
18 an dem Dosierkolben 14 an, die nicht ständig mit ihm
verbunden ist, sondern beim Auswechseln des Behälters im
Gehäuse 3 verbleibt. Die Kolbenstange 18 wird ihrerseits von
einem in einem erweiterten Gehäuseteil 20 untergebrachten elektrischen
Servomotor 22 über eine Kupplung 23, ein Riemen- oder
Zahngetriebe 24, eine bei 25 geführte Spindelmutter 26 und eine
bei 27 gelagerte Spindel 28 angetrieben. Zur genauen Steuerung
der dosierten Entleerung des Behälters 8 sind ein Absolutwertgeber
für den Servomotor 22 und ein induktiver Drehzahlmesser
29 vorhanden. An seinem rückwärtigen Ende ist das Gehäuseteil
20 durch einen Deckel 21 verschlossen.For dosed emptying of the
An ihrem dem Behälter 8 zugewandten Ende ist die Kolbenstange
18 in dem zum Arretieren des Behälters dienenden pneumatischen
Arretierzylinder 30 gelagert. In der Stirnfläche der Kolbenstange
18 sitzt ein pneumatischer Anschlagsensor 32, der ein
pneumatisches Signal erzeugt, wenn die Kolbenstange 18 gegen
den Dosierkolben 14 stößt.At its end facing the
Die hier beschriebene Beschichtungsmaschine kann an sich mit
jeder beliebigen Sprühvorrichtung arbeiten. Wenn aber eine
elektrostatische Sprühvorrichtung insbesondere zum Versprühen
von elektrisch leitendem Beschichtungsmaterial vorgesehen ist,
das den Ventilblock 4 und den zweckmäßig aus druckfestem Metall
bestehenden Behälter 8 auf Hochspannungspotential legen kann,
muß für ausreichende elektrische Isolierung zu den üblicherweise
geerdeten metallischen Teilen der Anlage gesorgt werden.
Beispielsweise kann das sich erweiternde Gehäuseteil 20
aus Aluminium bestehen. Das Gehäuse 3 des dargestellten Roboterarms
1 besteht deshalb vom Ventilblock 4 bis zu dem Gehäuseteil
20 aus einem mechanisch stabilen Kunststoff oder sonstigen
Isolierwerkstoff. Die Länge des isolierenden Gehäuses 3 ist so
bemessen, daß sich die erforderliche Isolierstrecke 33 zwischen
dem rückwärtigen Ende des zweckmäßig metallischen Arretierzylinders
30 und dem metallischen Gehäuseteil 20 ergibt. Die
Kolbenstange 18 besteht ebenfalls aus Isolierwerkstoff.The coating machine described here can in itself
work with any spray device. But if one
electrostatic spraying device, in particular for spraying
of electrically conductive coating material is provided,
that the
In Fig. 2 ist schematisch das Versorgungssystem einer elektrostatischen
Sprühvorrichtung 35 dargestellt, die beispielsweise
ein Rotationszerstäuber bekannter Art sein kann und das Beschichtungsmaterial
aus dem im Roboterarm montierten Behälter 8
gemäß Fig. 1 versprühen soll. Das Hauptnadelventil der Sprühvorrichtung
35 steht bei eingesetztem und angekoppelten Behälter
8 über eine Leitung HN und ein in dem Steuerventilblock 4
enthaltenes Farbventil F mit der Einlaßöffnung 37 des Ventilblocks
und folglich der Ventilöffnung 10 des Behälters 8 in
Verbindung. Ferner führt eine Spülmittelleitung V, von der eine
zum Kurzspülen der Zerstäuberglocke unter Umgehung der Hauptnadelleitung
HN dienende Leitung KS in die Sprühvorrichtung 35
abgezweigt ist, in den Ventilblock 4. In der Leitung V gelangt
das aus Verdünner bestehende Spülmittel bei Bedarf und insbesondere
bei einem Farbwechsel in die Leitung HN und zur Sprühvorrichtung.
Durch eine weitere in den Ventilblock 4 führende
Leitung PL gelangt Druckluft in den Ventilblock und durch die
Leitung HN zur Sprühvorrichtung 35. Schließlich ist noch eine
ebenfalls an den Ventilblock 4 und parallel hierzu an die Sprühvorrichtung
35 angeschlossene Leitung RF vorhanden, durch die
insbesondere beim Farbwechsel nicht versprühtes Beschichtungsmaterial
und Spülmittel aus den anderen Leitungen, dem Steuerventilblock
und der Sprühvorrichtung in einen Sammelbehälter S
geleitet wird. Die beschriebenen Leitungen befinden sich im
Inneren der bewegbaren Anlagenglieder.In Fig. 2 is the supply system of an
Die Leitungen können beim Versprühen leitfähiger Lacke im Bereich
der Sprühvorrichtung 35 und des Ventilblocks 4 auf Hochspannungspotential
liegen und sind deshalb im weiteren Verlauf
isolierend ausgebildet. Die Notwendigkeit einer elektrischen
Isolierung entfällt, wenn statt der elektrostatischen Sprühvorrichtung
beispielsweise ein Luftzerstäuber 35' an den Steuerventilblock
und die Leitung RF angeschlossen wird.The lines can spray conductive paint in the area
the
Im Betrieb wird der Behälter 8 an einer von der Beschichtungsmaschine
entfernten Stelle befüllt und vorzugsweise außerhalb
der üblichen Sprühkabine von einem Transportsystem, wie es in
der DE-Patentanmeldung 196 10 589.7 vom 18.03.1996 beschrieben
ist, zu einer Behälterwechselstelle transportiert, wo er von
einer Handhabungsvorrichtung ergriffen und längs einer linearen
Bewegungsbahn beispielsweise durch eine Öffnung der Kabinenwand
hindurch in die Öffnung 16 des Gehäuses 3 des in Fig. 1 dargestellten
Armes 1 eingesetzt werden kann. Der Behälter 8 kann
beispielsweise an einer Seite mit einem Griff 38 (Fig. 1) versehen
sein, an dem er von einem Greifer 39 der erwähnten Handhabungsvorrichtung
ergriffen wird. Das Andrücken und Ankuppeln
an den Ventilblock 4 erfolgt selbsttätig. Nach Gebrauch wird
der Behälter dem Arm 1 von der Handhabungsvorrichtung wieder
entnommen, die zugleich einen neuen, je nach Bedarf mit derselben
oder einer anderen Farbe gefüllten Behälter einsetzt,
wenn es nicht zweckmäßiger ist, zum Einsetzen und Entnehmen
getrennte Vorrichtungen zu verwenden.In operation, the
Die Erfindung ist nicht auf das beschriebene Beispiel eines Lackierroboters beschränkt, sondern ebenso bei beliebigen sonstigen maschinellen oder auch manuellen Beschichtungsvorrichtungen anwendbar. In diesen sonstigen Anwendungsfällen werden die Behälter typisch in einer Öffnung eines im übrigen geschlossenen ortsfesten Gehäuse- oder sonstigen Anlagenteils eingesetzt, wo sie dann in der anhand von Fig. 1 und Fig. 2 beschriebenen Weise angekuppelt werden können.The invention is not based on the example described Painting robot limited, but also with any other mechanical or manual coating devices applicable. In these other use cases the containers are typically in an opening one in the rest closed stationary housing or other system part used where they are then in the on the basis of FIGS. 1 and 2 described way can be coupled.
Eine zweckmäßige Methode besteht beispielsweise darin, die Behälter in transportierbaren Magazinen zuzuführen, denen sie zur Übergabe und zum Einsetzen in die Öffnung des Anlagenteils entnommen werden und in die sie nach Gebrauch und Entnahme aus der Öffnung zum Abtransportieren wieder eingesetzt werden können.A convenient method is, for example, the Feed containers in transportable magazines, which they for transfer and insertion in the opening of the system section are removed and into which they are used and removed the opening for removal can be used again.
Die verwendeten Behälter 8 selbst haben zahlreiche vorteilhafte
Eigenschaften. Sie eignen sich für eine Dosierung, können luftdicht
und als Druckbehälter ausgebildet sein, bieten Schutz vor
Alterung des Beschichtungsmaterials, dienen als Transportbehälter,
Farbspeicher und zur Entkopplung der Beschichtungsvorrichtung
von Ringleitungen oder sonstigen Farbversorgungssystemen,
sind ortsunabhängig, spülbar und wiederverwendbar und
können auf einfache Weise mit Kenndaten zur Kennzeichnung ihres
Inhalts oder sonstiger wichtiger Umstände wie beispielsweise
des Abfülldatums versehen werden. Ferner sind sie einfach
greifbar und beim Ankuppeln leicht zentrierbar und arretierbar.The
Claims (14)
- Coating installation including a spraying device which, in operation, is connected to a container (8) for the coating material to be sprayed, which is arranged so as to be replaceable in a receiving device in the interior of a portion (1) of the installation and grippable from the exterior through an opening (16) of the installation portion (1) and, for the purpose of filling, is removed from the receiving device and transported to a filling point and which may be emptied by a piston (14) movable in the container.
- Installation as claimed in Claim 1, characterised in that the container is coupled in the interior of the installation portion (1) to a valve block (4) connected by means of lines to the spraying device (35).
- Installation as claimed in Claim 2, characterised in that the valve block (4) has an inlet opening (37) which is directed towards the end of the cylindrical container (8) and which is aligned with a valve opening (10) situated in the end surface of the container (8).
- Installation as claimed in Claim 2 or 3, characterised in that provided on the valve block (4) and/or on the end of the container (8) directed towards the valve block there are centering means (12) for aligning the outlet valve opening (10) of the container with the inlet opening (37) in the valve block (4).
- Installation as claimed in one of the preceding claims, characterised in that a pneumatic locking cylinder (30) for pressing the container (8) against the valve block (4) is provided in the installation portion (1).
- Installation as claimed in one of the preceding claims, characterised in that the container (8) is constructed in the form of a metering cylinder and may be emptied by movement of its piston (14) in the direction towards an outlet valve opening (10) of the container located at one end of the container and that the piston (14) is engaged by a piston rod (18), which is mounted in the installation portion (1) and is driven by a motor (22) incorporated in the coating machine for the purpose of metered emptying of the container (8).
- Installation as claimed in Claim 6, characterised in that the motor (22) is an electric servomotor.
- Installation as claimed in Claim 6 or 7, characterised in that the piston rod (18) is movably mounted in the locking cylinder (30).
- Installation as claimed in one of Claims 6 to 8 characterised in that an abutment sensor (32) is arranged on the end of the piston rod (18) directed towards the container (8).
- Installation as claimed in one of the preceding claims including an electrostatic spraying device (35), characterised in that the installation portion (1) comprises insulating material, at least over a length (33) sufficient to electrically insulate the spraying device (35) and the container (8) from the earthed portions (20) of the installation.
- Installation as claimed in one of the preceding claims, characterised in that the piston rod (18) of the electromechanical metering drive comprises insulating material.
- Installation as claimed in one of the preceding claims, characterised in that the installation portion (1) is a movable arm of a multiple axis coating machine.
- Installation as claimed in one of Claims 1 to 11, characterised in that the installation portion is located in a fixed housing portion of the installation.
- Installation as claimed in one of Claims 1 to 13, characterised in that the opening (6) is situated on one side of an elongate housing (1), the longitudinal axis of which extends parallel to the inserted container (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19610588 | 1996-03-18 | ||
| DE19610588A DE19610588B4 (en) | 1996-03-18 | 1996-03-18 | Coating machine with replaceable container |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0796664A2 EP0796664A2 (en) | 1997-09-24 |
| EP0796664A3 EP0796664A3 (en) | 1998-04-08 |
| EP0796664B1 true EP0796664B1 (en) | 2001-07-11 |
Family
ID=7788629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97104632A Expired - Lifetime EP0796664B1 (en) | 1996-03-18 | 1997-03-18 | Process and system for supply paint to a coating installation |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0796664B1 (en) |
| DE (2) | DE19610588B4 (en) |
| ES (1) | ES2159373T3 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19858397A1 (en) * | 1998-12-17 | 2000-06-21 | Duerr Systems Gmbh | Process and system for supplying paint to an electrostatic coating system |
| DE10115472A1 (en) | 2001-03-29 | 2002-10-10 | Duerr Systems Gmbh | Valve unit for use in electrostatic painting apparatus has an optoelectronic sensor device with light wave conductors and an optoelectronic sensor to sense an indexing position and to generate a corresponding sensing signal. |
| DE10115470A1 (en) | 2001-03-29 | 2002-10-10 | Duerr Systems Gmbh | Coating system with an atomizer change station |
| DE10115467A1 (en) | 2001-03-29 | 2002-10-02 | Duerr Systems Gmbh | Tool changing system for one machine |
| DE10115463A1 (en) | 2001-03-29 | 2002-10-02 | Duerr Systems Gmbh | Atomizer for a coating system and process for its material supply |
| DE10120272A1 (en) | 2001-04-25 | 2002-10-31 | Duerr Systems Gmbh | Process for operating control of a coating system |
| DE10145169A1 (en) | 2001-09-13 | 2003-04-03 | Duerr Systems Gmbh | Process for the serial coating of workpieces |
| DE10157966A1 (en) | 2001-11-27 | 2003-06-05 | Duerr Systems Gmbh | Method and supply system for the metered supply of material to a coating device |
| DE10231421A1 (en) | 2002-07-11 | 2004-01-22 | Dürr Systems GmbH | Method and system for supplying a powder coating device |
| DE10233198A1 (en) | 2002-07-22 | 2004-02-05 | Dürr Systems GmbH | rotary atomizers |
| DE10239516A1 (en) | 2002-08-28 | 2004-03-18 | Dürr Systems GmbH | Hose with pig for delivery of electrically conductive fluid paints or varnishes at high voltage comprises an inner layer enclosed in an insulating layer with high voltage resistance |
| DE10239517A1 (en) | 2002-08-28 | 2004-03-11 | Dürr Systems GmbH | Coating device with a rotary atomizer and method for controlling its operation |
| DE10240451A1 (en) | 2002-09-02 | 2004-03-11 | Dürr Systems GmbH | Sensor arrangement for a coating system |
| DE10245594A1 (en) | 2002-09-30 | 2004-04-08 | Dürr Systems GmbH | Collision detection method |
| US6991178B2 (en) | 2003-01-24 | 2006-01-31 | Dürr Systems, Inc. | Concentric paint atomizer shaping air rings |
| EP1772194B1 (en) | 2005-10-07 | 2019-01-09 | Dürr 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 |
| US8671495B2 (en) | 2006-11-06 | 2014-03-18 | Durr Systems, Inc. | Scraper pig |
| DE102011012012A1 (en) * | 2011-02-22 | 2012-08-23 | Eisenmann Ag | Piston dispenser for fluid media |
| DE102015016448A1 (en) * | 2015-12-21 | 2017-06-22 | Eisenmann Se | Coating device for electrostatically guided application of coating material |
| CN117564651B (en) * | 2024-01-19 | 2024-04-23 | 安徽汉普斯精密传动有限公司 | Automatic oiling and press mounting equipment for motor oil seal |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB105497A (en) * | 1900-01-01 | |||
| FR1355588A (en) * | 1963-01-07 | 1964-06-19 | Oreal | New fixing device for vials and in particular for vials containing an aerosol solution |
| CH414977A (en) * | 1964-06-22 | 1966-06-15 | Zyma Sa | Liquid product dispenser |
| US4098436A (en) * | 1976-07-29 | 1978-07-04 | Kohlbeck Anthony J | Holder to convert spray can into spray gun |
| US4087048A (en) * | 1977-03-01 | 1978-05-02 | Smrt Thomas John | Spraying apparatus |
| DE8213103U1 (en) * | 1982-05-06 | 1982-09-09 | Fuhrig, Wolfgang D., 6200 Wiesbaden | DISPENSER FOR SPRAY CAN |
| JPS60122073A (en) * | 1983-12-05 | 1985-06-29 | Tokico Ltd | Color changing device of painting robot |
| DE3440381A1 (en) * | 1984-11-05 | 1986-05-07 | Ransburg Gmbh, 6056 Heusenstamm | METHOD AND DEVICE FOR AUTOMATIC ELECTROSTATIC SPRAY COATING |
| FR2609252B1 (en) * | 1987-01-02 | 1989-04-21 | Sames Sa | INSTALLATION FOR SPRAYING COATING PRODUCT SUCH AS FOR EXAMPLE PAINT AND IN PARTICULAR INSTALLATION FOR ELECTROSTATIC PROJECTION OF WATER-BASED PAINT |
| DE8906341U1 (en) * | 1989-05-23 | 1989-07-13 | Sata - Farbspritztechnik Gmbh & Co, 7140 Ludwigsburg, De | |
| DE4013941A1 (en) * | 1990-04-30 | 1991-10-31 | Behr Industrieanlagen | PLANT FOR SERIES COATING OF WORKPIECES WITH CONDUCTIVE COATING MATERIAL |
| US5238029A (en) * | 1991-10-04 | 1993-08-24 | Fanuc Robotics North America, Inc. | Method and system for fluid transfer and non-contact sensor for use therein |
| FR2695327B1 (en) * | 1992-09-09 | 1995-07-07 | Sames Sa | Device for electrostatic projection of electrically conductive coating product, provided with an insulated reservoir adapted to contain such a product. |
| FR2703266B1 (en) * | 1993-04-01 | 1995-06-23 | Sames Sa | Coating product spraying machine. |
-
1996
- 1996-03-18 DE DE19610588A patent/DE19610588B4/en not_active Expired - Lifetime
-
1997
- 1997-03-18 ES ES97104632T patent/ES2159373T3/en not_active Expired - Lifetime
- 1997-03-18 DE DE59703985T patent/DE59703985D1/en not_active Expired - Lifetime
- 1997-03-18 EP EP97104632A patent/EP0796664B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59703985D1 (en) | 2001-08-16 |
| DE19610588A1 (en) | 1997-09-25 |
| ES2159373T3 (en) | 2001-10-01 |
| EP0796664A2 (en) | 1997-09-24 |
| EP0796664A3 (en) | 1998-04-08 |
| DE19610588B4 (en) | 2010-08-05 |
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