EP0333040B1 - Process and device for cleaning spraying devices - Google Patents
Process and device for cleaning spraying devices Download PDFInfo
- Publication number
- EP0333040B1 EP0333040B1 EP89104211A EP89104211A EP0333040B1 EP 0333040 B1 EP0333040 B1 EP 0333040B1 EP 89104211 A EP89104211 A EP 89104211A EP 89104211 A EP89104211 A EP 89104211A EP 0333040 B1 EP0333040 B1 EP 0333040B1
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- EP
- European Patent Office
- Prior art keywords
- internal space
- spraying device
- cleaning
- cleaned
- container
- 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
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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
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
- B05B15/555—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids discharged by cleaning nozzles
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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
- B05B13/0405—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 reciprocating or oscillating spray heads
Definitions
- the invention relates to a method according to the preamble of claim 1 and an apparatus for performing this method.
- Spraying devices such as Spray guns for atomizing or atomizing paint, such as those used to coat vehicle bodies or other workpieces, must be cleaned at regular intervals, especially in the area of the paint nozzles and any air nozzles that may be present. are freed from the self-coating covering created by paint mist and paint drops.
- spray head of a paint spray gun After a predetermined operating time from separated spray material such as paint or varnish by inserting it into the opening of a collecting cup and from a nozzle located centrally on the cup base with rinsing liquid. By inserting the spray head into the cup, its interior is sealed airtight to the outside.
- the invention has for its object to provide a method and a device by which a spray gun or other spraying devices on their outside exposed to a constant risk of coating, in particular in the area of the spray material nozzle and possibly existing air nozzles, can be cleaned more thoroughly than previously with little consumption of cleaning medium .
- a significant additional advantage of the invention is that the cleaning process can be controlled fully automatically in a simple manner. This is particularly important when using the invention for painting robots, but significant advantages of the invention also come into play when cleaning hand spray guns.
- the drawing shows, largely schematically, a device 1 for cleaning a spray gun 2 (indicated by dashed lines).
- the cleaning device 1 has a container with an interior space 3 that is rotationally symmetrical about a generally vertical axis. On its top side, the interior space 3 is concentric with its axis Opening 4 through which the part of the spray gun 2 to be cleaned can be inserted into the interior.
- the space between the spray gun 2 used in the device 1 and the edge of the opening 4 can be sealed by a sealing device 5, which prevents the escape of cleaning fluid and paint residues.
- the sealing device 5 serves for centering the position, that is to say fixing the cleaning position of the spray gun 2 in the cleaning device 1.
- the sealing device is preferably designed such that unavoidable radial and axial positional deviations between the spray gun 2 and the container of the cleaning device 1 can be compensated for. At in the example shown, it consists of an elastic, bead-like lip seal.
- the sealing device can also contain a sealing ring which is arranged in a floating manner in a receiving structure (not shown).
- a nozzle arrangement 6 rotatable about an axis running transversely to the axis of the container.
- the nozzle arrangement 6 is mounted by means of two shafts 7, which contain the feed lines for a cleaning liquid to be supplied to the nozzle arrangement and are rotatably mounted in two passages 12 sealed against the outside. Lines are connected to the ends of the shafts 7 via a rotary seal 13.
- the inflow of the cleaning liquid is controlled by valves 9, preferably by solenoid valves, which facilitate an automatic operating sequence.
- the nozzle arrangement 6 contains a plurality of nozzles 8 or other nozzle openings through which the cleaning liquid is sprayed onto the area of the spray gun 2 to be cleaned. It consists essentially of a generally U-shaped or approximately semicircular curved bracket which is pivotally mounted about the axis of the shafts 7 extending transversely through the two bracket legs and is arranged such that the spray gun 2 with its area to be cleaned into the space between protrudes the two stirrup legs.
- the bracket is pivotable by at least about 180 °, so it can be pivoted around the end of the spray gun 2 projecting into the interior 3 from its front side, which is visible in the drawing, to its rear side, so that all relevant areas of the spray gun at all points during the pivoting movement be sprayed directly.
- the nozzle arrangement 6 is moved by a pneumatically or electrically controlled drive device 16 which is coupled to one of the shafts 7 and which is connected to an adjusting device.
- the rotary movement takes place by certain, previously set angular amounts in the two directions of rotation, which can be reversed on the drive device 16.
- a position sensor 14 is attached, which outputs information about the current position of the nozzle arrangement 6 via a position sensor 15.
- two proximity sensors can be attached to the position sensor 15.
- stationary nozzles can also be provided in addition to the swivel bracket arrangement described or another movable nozzle arrangement.
- the bracket is in a lateral basic position (not shown). For example, in this position, rinsing liquid or rinsing fluid can be emptied from the inside of the spray gun 2 into the cleaning device 1 with internal rinsing.
- the internal flushing of spray guns is known per se, but here there is the advantage of the problem-free disposal of the flushing liquid.
- the used cleaning fluid flowing off the spray gun is collected by a funnel-shaped part 10 of the interior 3 and collected in a collecting container 20 via the center of the funnel-shaped part.
- the cleaning liquid should continuously flow out of the interior 3 during the spraying process.
- an automatically controllable valve 19 is present between the interior 3 and the collecting container 20, the collecting container 20 can be compressed air into a drain line when the valve is closed be emptied.
- the emptying can also be carried out by means of negative pressure, that is to say by suction or by pumping.
- the emptying can be controlled in time and is preferably carried out after the cleaning process has ended, possibly at a time when the cleaned spraying device is already in operation again.
- the invention is particularly well suited for the fully automatically controlled cleaning of a spray device arranged on a painting robot or other program-controlled automatic movement machine.
- the cleaning device itself can also be expediently attached to the robot.
- the part of the spray gun 2 to be cleaned is inserted into the device 1 by the robot from above from a defined entry position (expediently at a slow speed) vertically downward through the opening 4.
- Sensors can be used to report that the spray gun 2 is in the correct position.
- the spray gun is then sprayed with cleaning fluid via the nozzle arrangement 6 in accordance with a predetermined sequence diagram while simultaneously moving the swivel bracket.
- the spray gun 2 is preferably dried with compressed air, which is blown on the spray head of the spray gun 2 by air nozzles 18 which are mounted separately on the wall of the interior 3 and are connected to a line (not shown).
- the air nozzles could also be arranged on the pivotable nozzle arrangement 6.
- the flow chart of the cleaning process preferably follows a process control.
- the process control can also be taken over by the control of the painting robot.
- the described device enables reliable cleaning of the spray gun in a short time and with low consumption of cleaning fluid.
- the cleaning of the spray gun of a painting robot can be carried out within a period of 5 to 7 seconds, the consumption of cleaning liquid for a single cleaning process being in the range of 15 to 20 cm 3.
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Spray Control Apparatus (AREA)
Description
Die Erfindung betrifft ein Verfahren gemäß dem Oberbegriff des Anspruchs 1 sowie eine Vorrichtung zum Durchführen dieses Verfahrens.The invention relates to a method according to the preamble of claim 1 and an apparatus for performing this method.
Sprühvorrichtungen wie z.B. Spritzpistolen zum Zerstäuben oder Vernebeln von Farbe, wie sie zum Beschichten von Fahrzeugkarossen oder sonstigen Werkstücken verwendet werden, müssen vor allem im Bereich der Farbdüsen und eventuell vorhandener Luftdüsen in regelmäßigen Abständen gereinigt, d.h. von dem durch Farbnebel und Farbtropfen entstehenden Eigenbeschichtungsbelag befreit werden. Aus der DE-A-28 54 325 ist es bereits bekannt, den Sprühkopf einer Farbspritzpistole jeweils nach einer vorbestimmten Betriebszeit dadurch von abgesetztem Sprühmaterial wie Farbe oder Lack zu befreien, daß er in die Öffnung eines Auffangbechers eingesetzt und von einer zentral am Becherboden befindlichen Düse mit Spülflüssigkeit beaufschlagt wird. Durch das Einsetzen des Sprühkopfes in den Becher wird dessen Innenraum luftdicht nach außen abgeschlossen. Das sich im Becherinneren ansammelnde Gemisch aus Spülflüssigkeit und Verlustfarbe wird durch eine Leitung abgesaugt. Durch das Besprühen und Spülen der Außenseite des Sprühkopfes innerhalb eines nach außen abgeschlossenen Reinigungsbehälters werden Probleme hinsichtlich der Umweltbelastung durch Spülflüssigkeit und Farbreste vermieden.Spraying devices such as Spray guns for atomizing or atomizing paint, such as those used to coat vehicle bodies or other workpieces, must be cleaned at regular intervals, especially in the area of the paint nozzles and any air nozzles that may be present. are freed from the self-coating covering created by paint mist and paint drops. From DE-A-28 54 325 it is already known to free the spray head of a paint spray gun after a predetermined operating time from separated spray material such as paint or varnish by inserting it into the opening of a collecting cup and from a nozzle located centrally on the cup base with rinsing liquid. By inserting the spray head into the cup, its interior is sealed airtight to the outside. The mixture of rinsing liquid and waste paint that accumulates inside the cup is sucked off through a line. By spraying and rinsing the outside of the spray head inside a cleaning container sealed to the outside, problems with regard to the environmental impact of rinsing liquid and paint residues are avoided.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zu schaffen, durch die eine Spritzpistole oder sonstige Sprühvorrichtungen an ihrer einer ständigen Beschichtungsgefahr ausgesetzten Außenseite insbesondere im Bereich der Sprühmaterialdüse und eventuell vorhandener Luftdüsen zeitsparend mit geringem Verbrauch an Reinigungsmedium gründlicher als bisher gereinigt werden kann.The invention has for its object to provide a method and a device by which a spray gun or other spraying devices on their outside exposed to a constant risk of coating, in particular in the area of the spray material nozzle and possibly existing air nozzles, can be cleaned more thoroughly than previously with little consumption of cleaning medium .
Dieser Aufgabe wird durch das im Anspruch 1 gekennzeichnete Verfahren bzw. durch die im Anspruch 7 gekennzeichnete Vorrichtung gelöst.This object is achieved by the method characterized in claim 1 or by the device characterized in claim 7.
Ein wesentlicher zusätzlicher Vorteil der Erfindung besteht darin, daß der Reinigungsvorgang auf einfache Weise vollautomatisch gesteuert werden kann. Dies ist besonders bei Anwendung der Erfindung für Lackierroboter wichtig, doch kommen wesentliche Vorteile der Erfindung auch beim Reinigen von Handspritzpistolen zur Geltung.A significant additional advantage of the invention is that the cleaning process can be controlled fully automatically in a simple manner. This is particularly important when using the invention for painting robots, but significant advantages of the invention also come into play when cleaning hand spray guns.
Weitere Vorteile der Erfindung ergeben sich durch die in den Unteransprüchen beschriebenen Merkmale.Further advantages of the invention result from the features described in the subclaims.
Als Ausführungsbeispiel der Erfindung wird anhand der Zeichnung eine Vorrichtung zum Reinigen einer Farbspritzpistole beschrieben.As an embodiment of the invention, a device for cleaning a paint spray gun is described with reference to the drawing.
Die Zeichnung zeigt weitgehend schematisch eine Vorrichtung 1 zum Reinigen einer (gestrichelt angedeuteten) Spritzpistole 2. Die Reinigungsvorrichtung 1 hat einen Behälter mit einem um eine in der Regel vertikale Achse rotationssymmetrisch ausgebildeten Innenraum 3. An seiner Oberseite hat der Innenraum 3 konzentrisch zu seiner Achse eine Öffnung 4, durch welche der zu reinigende Teil der Spritzpistole 2 in den Innenraum einsetzbar ist. Der Zwischenraum zwischen der in die Vorrichtung 1 eingesetzten Spritzpistole 2 und dem Rand der Öffnung 4 ist durch eine Abdichtvorrichtung 5 abdichtbar, die den Austritt von Reinigungsflüssigkeit und Farbresten verhindert. Zugleich dient die Abdichtvorrichtung 5 zur Lagezentrierung, d.h. Festlegung der Reinigungsposition der Spritzpistole 2 in der Reinigungsvorrichtung 1. Die Abdichtvorrichtung ist vorzugsweise derart ausgestaltet, daß unvermeidbare radiale und axiale Lageabweichungen zwischen der Spritzpistole 2 und dem Behälter der Reinigungsvorrichtung 1 ausgleichbar sind. Bei dem dargestellten Beispiel besteht sie aus einer elastischen wulstartigen Lippendichtung. Die Abdichtvorrichtung kann auch einen in einer Aufnahmekonstruktion (nicht dargestellt) schwimmend angeordneten Dichtring enthalten.The drawing shows, largely schematically, a device 1 for cleaning a spray gun 2 (indicated by dashed lines). The cleaning device 1 has a container with an interior space 3 that is rotationally symmetrical about a generally vertical axis. On its top side, the interior space 3 is concentric with its axis Opening 4 through which the part of the spray gun 2 to be cleaned can be inserted into the interior. The space between the spray gun 2 used in the device 1 and the edge of the opening 4 can be sealed by a
Im Inneren des Innenraums 3 ist eine um eine quer zur Behälterachse verlaufende Achse drehbare Düsenanordnung 6 angebracht. Die Düsenanordnung 6 ist mittels zweier Wellen 7 gelagert, welche die Zuleitungen für eine der Düsenanordnung zuzuführende Reinigungsflüssigkeit enthalten und in zwei Durchführungen 12 gegen die Außenseite abgedichtet drehbar gelagert sind. Mit den Enden der Wellen 7 sind Leitungen über eine Drehdichtung 13 verbunden. Der Zufluß der Reinigungsflüssigkeit wird durch Ventile 9 gesteuert, vorzugsweise durch Magnetventile, die einen automatischen Betriebsablauf erleichtern.In the interior of the interior 3 there is a
Die Düsenanordnung 6 enthält mehrere Düsen 8 oder sonstige Düsenöffnungen, durch welche die Reinigungsflüssigkeit auf den zu reinigenden Bereich der Spritzpistole 2 gesprüht wird. Sie besteht im wesentlichen aus einem allgemein U-förmig oder annähernd halbkreisförmig gebogenen Bügel, der um die quer durch die beiden Bügelschenkel verlaufende Achse der Wellen 7 schwenkbar gelagert ist und derart angeordnet ist, daß die Spritzpistole 2 mit ihrem zu reinigenden Bereich in den Raum zwischen den beiden Bügelschenkeln ragt. Der Bügel ist um mindestens etwa 180° schwenkbar, kann also um das in den Innenraum 3 ragende Ende der Spritzpistole 2 von deren in der Zeichnung sichtbaren Vorderseite bis zu ihrer Rückseite geschwenkt werden, so daß während der Schwenkbewegung alle betreffenden Bereiche der Spritzpistole an allen Stellen direkt besprüht werden. Je nach Ausführung der schwenkbaren Düsenanordnung kann es auch zweckmäßig sein, wenn die Spritzpistole 2 bis unterhalb der Schwenkachse in den Innenraum 3 hineinragt.The
Die Düsenanordnung 6 wird von einer mit einer der Wellen 7 gekoppelten pneumatisch oder elektrisch gesteuerten Antriebsvorrichtung 16 bewegt, die mit einer Einstelleinrichtung verbunden ist. Die Drehbewegung erfolgt um bestimmte, zuvor eingestellte Winkelbeträge in den beiden Drehrichtungen, die an der Antriebsvorrichtung 16 umsteuerbar sind. An der anderen Welle 7 ist ein Lagegeber 14 angebracht, der über einen Lagefühler 15 Informationen über die augenblickliche Stellung der Düsenanordnung 6 abgibt. Zur Umkehrung des Antriebs und Rückmeldung der Bügelgrundstellung können an dem Lagefühler 15 zwei Näherungsinitiatoren angebracht sein.The
Bei anderen Ausführungsbeispielen der Erfindung können zusätzlich zu der beschriebenen Schwenkbügelanordnung oder einer sonstigen bewegbaren Düsenanordnung auch ortsfeste Düsen vorgesehen werden.In other exemplary embodiments of the invention, stationary nozzles can also be provided in addition to the swivel bracket arrangement described or another movable nozzle arrangement.
Findet keine Schwenkbewegung statt, so steht der Bügel in einer seitlichen Grundstellung (nicht dargestellt). Beispielsweise bei dieser Stellung kann Spülflüssigkeit oder Spülfluid aus dem Inneren der Spritzpistole 2 unter Innenspülung in die Reinigungsvorrichtung 1 hinein entleert werden. Die Innenspülung von Spritzpistolen ist zwar an sich bekannt, doch ergibt sich hier der Vorteil der problemlosen Entsorgung der Spülflüssigkeit.If there is no pivoting movement, the bracket is in a lateral basic position (not shown). For example, in this position, rinsing liquid or rinsing fluid can be emptied from the inside of the spray gun 2 into the cleaning device 1 with internal rinsing. The internal flushing of spray guns is known per se, but here there is the advantage of the problem-free disposal of the flushing liquid.
Die von der Spritzpistole abfließende, verbrauchte Reinigungsflüssigkeit wird durch einen trichterförmigen Teil 10 des Innenraums 3 gesammelt und über die Mitte des trichterförmigen Teils in einem Sammelbehälter 20 aufgefangen. Vorzugsweise soll während des Sprühvorgangs die Reinigungsflüssigkeit ständig aus dem Innenraum 3 abfließen. Wenn zwischen dem Innenraum 3 und dem Sammelbehälter 20 ein automatisch steuerbares Ventil 19 vorhanden ist, kann der Sammelbehälter 20 bei geschlossenem Ventil durch Druckluft in eine Abflußleitung entleert werden. Die Entleerung kann stattdessen auch durch Unterdruck, also durch Absaugen oder durch Abpumpen erfolgen. Die Entleerung kann zeitlich gesteuert werden und erfolgt vorzugsweise nach Beendigung des Reinigungsvorgangs, möglicherweise zu einer Zeit, wenn die gereinigte Sprühvorrichtung schon wieder in Betrieb ist.The used cleaning fluid flowing off the spray gun is collected by a funnel-
Die Erfindung eignet sich besonders gut für die vollautomatisch gesteuerte Reinigung einer an einem Lackierroboter oder sonstigen programmgesteuerten Bewegungsautomaten angeordneten Sprühvorrichtung. In diesem Fall kann auch die Reinnigungsvorrichtung selbst zweckmäßig an den Roboter angebaut werden. Für den Betrieb der Vorrichtung wird der zu reinigende Teil der Spritzpistole 2 vom Roboter von oben aus einer definierten Einfahrposition (zweckmäßig mit langsamer Geschwindigkeit) senkrecht nach unten durch die Öffnung 4 in die Vorrichtung 1 eingeführt. Mit (nicht dargestellten) Sensoren kann gemeldet werden, daß die Spritzpistole 2 die richtige Position einnimmt. Über die Düsenanordnung 6 wird die Spritzpistole dann nach einem vorgegebenen Ablaufschema unter gleichzeitiger Bewegung des Schwenkbügels mit Reinigungsflüssigkeit besprüht. Vorzugsweise wird die Spritzpistole 2 nach der Reinigung mit Preßluft getrocknet, die durch separat an der Wand des Innenraums 3 montierte, an eine (nicht dargestellte) Leitung angeschlossene Luftdüsen 18 auf dem Sprühkopf der Spritzpistole 2 geblasen wird. Die Luftdüsen könnten auch auf der schwenkbaren Düsenanordnung 6 angeordnet werden. Während des Reinigungsvorgangs und des Trocknungsvorgangs werden gegebenenfalls vorhandene Luftbohrungen (Öffnungen für Hörner- und Zerstäuberluft) in der Außenseite der Spritzpistole 2 durch Ausblasen von Luft vor dem Eindringen von Reinigungsflüssigkeit und Schmutzresten geschützt.The invention is particularly well suited for the fully automatically controlled cleaning of a spray device arranged on a painting robot or other program-controlled automatic movement machine. In this case, the cleaning device itself can also be expediently attached to the robot. For the operation of the device, the part of the spray gun 2 to be cleaned is inserted into the device 1 by the robot from above from a defined entry position (expediently at a slow speed) vertically downward through the opening 4. Sensors (not shown) can be used to report that the spray gun 2 is in the correct position. The spray gun is then sprayed with cleaning fluid via the
Das Ablaufschema des Reinigungsvorgangs folgt vorzugsweise einer Prozeßsteuerung. Die Ablaufsteuerung kann auch von der Steuerung des Lackierroboters übernommen werden.The flow chart of the cleaning process preferably follows a process control. The process control can also be taken over by the control of the painting robot.
Die beschriebene Vorrichtung ermöglicht eine zuverlässige Reinigung der Spritzpistole in kurzer Zeit und mit geringem Verbrauch an Reinigungsflüssigkeit. Beispielsweise ist die Reinigung der Spritzpistole eines Lackierroboters innerhalb eines Zeitraums von 5 bis 7 Sekunden durchführbar, wobei der Verbrauch an Reinigungsflüssigkeit für einen einmaligen Reinigungsvorgang im Bereich von 15 bis 20 cm³ liegen kann.The described device enables reliable cleaning of the spray gun in a short time and with low consumption of cleaning fluid. For example, the cleaning of the spray gun of a painting robot can be carried out within a period of 5 to 7 seconds, the consumption of cleaning liquid for a single cleaning process being in the range of 15 to 20 cm 3.
Claims (18)
- Method of cleaning a region contaminated by sprayed coating material on the outer surface of a spraying device (2) used for coating workpieces, for instance a spray gun guided by a movement controller, whereby the region of the spraying device to be cleaned is inserted into an internal space (3) of a cleaning device and is sprayed in this internal space by a nozzle arrangement (6) with a cleaning medium, characterised that when spraying the inserted spraying device the nozzle arrangement is moved around its region to be cleaned.
- Method as claimed in claim 1, characterised in that after the introduction of the spraying device into the internal space the region to be cleaned is firstly sprayed for a predetermined time by program control, whereby the liquid flows constantly out of the internal space into a collecting container and thereafter the collecting container is emptied.
- Method as claimed in claim 1 or 2, characterised in that the spraying device is introduced by automatic program control at regular time intervals whilst interrupting the coating operation into the internal space of the cleaning device.
- Method as claimed in one of the preceding claims, characterised in that the spraying device is subjected in the internal space firstly to cleaning fluid and then to compressed air.
- Method as claimed in claim 2, characterised in that the collecting container is emptied into a discharge line by the action of pressure.
- Method as claimed in one of the preceding claims, characterised in that a flushing fluid is introduced from the interior of the spraying device to be cleaned into the internal space of the cleaning device.
- Apparatus for carrying out the method as claimed in one of claims 1 to 6 including a container with an internal space (3), which is accessible to the exterior through an opening (4) which is concentric with a predetermined axis of the container and through which a portion to be cleaned of a spraying device (2) may be inserted into the internal space (3) and including a nozzle arrangement (6) arranged in the internal space (3) of the container, characterised in that the nozzle arrangement (6) is pivotable about an axis (7) extending transverse to the axis of the container.
- Apparatus as claimed in claim 7, characterised in that the nozzle arrangement (6) includes a carrier with a plurality of nozzles arranged thereon.
- Apparatus as claimed in claim 7 or 8, characterised in that the nozzle arrangement (6) comprises a bracket bent into generally U-shape or approximately semi-circular shape which is mounted to be pivotable about an axis (7) extending transversely through the two ends of the bracket and is so arranged that the region to be cleaned of the spraying device (2) extends into the space between the two limbs of the bracket.
- Apparatus as claimed in one of claims 7 to 9, characterised in that the nozzle arrangement (6) is mounted on a shaft (7) which is movable in rotation by a drive device (16) by adjustable angular distances in controllable directions and into a defined rest position.
- Apparatus as claimed in claim 10, characterised in that the drive device (16) is pneumatically controlled.
- Apparatus as claimed in one of claims 7 to 11, characterised in that the internal space (3) is at least approximately rotationally symmetrical about a vertical axis and that the opening (4) at the upper side of the internal space (3) is arranged substantially centrally with respect to the vertical axis.
- Apparatus as claimed in one of claims 7 to 12, characterised in that the opening (4) of the internal space (3) is provided with a sealing device (5) which defines the position of the inserted spraying device (2) and with which the internal space may be sealed from the exterior when the spraying device (2) is inserted.
- Apparatus as claimed in claim 13, characterised in that radial and axial positional deviations between the spraying device (2) to be cleaned and the container may be compensated for by the sealing device (5).
- Apparatus as claimed in claim 14, characterised in that the sealing device includes a sealing ring floatingly arranged in a mounting.
- Apparatus as claimed in one of claims 7 to 15, characterised by a device (10) for collecting the used cleaning liquid and a collecting container (20) situated vertically below the internal space (3).
- Apparatus as claimed in claim 16, characterised in that a controllable shut-off device (9) is situated between the collecting device (10) and the collecting container (20).
- Apparatus as claimed in one of claims 7 to 17, characterised by air nozzles (18) arranged in the internal space (3) for drying the spraying device (2) to be cleaned.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3808801A DE3808801A1 (en) | 1988-03-16 | 1988-03-16 | METHOD AND DEVICE FOR CLEANING A SPRAYING DEVICE |
| DE3808801 | 1988-03-16 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0333040A2 EP0333040A2 (en) | 1989-09-20 |
| EP0333040A3 EP0333040A3 (en) | 1990-07-25 |
| EP0333040B1 true EP0333040B1 (en) | 1994-01-05 |
Family
ID=6349888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89104211A Expired - Lifetime EP0333040B1 (en) | 1988-03-16 | 1989-03-09 | Process and device for cleaning spraying devices |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4977911A (en) |
| EP (1) | EP0333040B1 (en) |
| DE (2) | DE3808801A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1367302A2 (en) | 2002-05-27 | 2003-12-03 | Dürr Systems GmbH | Sealing arrangement |
| DE102005015604A1 (en) * | 2005-04-05 | 2006-10-19 | Dürr Systems GmbH | Rotary atomizer component for coating components of vehicle, has bushing-shaped shaft cover which covers bearing shaft when mounted partially in area of annular gap |
| DE102005044154A1 (en) * | 2005-09-15 | 2007-04-05 | Dürr Systems GmbH | Rotationszerstäuberbauteil |
| DE102007048248A1 (en) | 2007-10-08 | 2009-05-14 | Dürr Systems GmbH | Robot with a cleaning device and associated operating method |
| EP4378593A1 (en) | 2022-12-02 | 2024-06-05 | Polyplan-GmbH Polyurethan-Maschinen | Deaerating device |
| DE102022004530A1 (en) | 2022-12-02 | 2024-06-13 | Polyplan-GmbH Polyurethan-Maschinen | Ventilation device |
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4129778A1 (en) * | 1991-09-07 | 1992-07-09 | Daimler Benz Ag | Automatic cleaning device for painting robots - has encapsulated spray tank to clean complete working arm |
| US5337794A (en) * | 1992-02-20 | 1994-08-16 | Mita Industrial Co., Ltd. | Powder filling apparatus and a method for filling a container with powder |
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1989
- 1989-03-09 EP EP89104211A patent/EP0333040B1/en not_active Expired - Lifetime
- 1989-03-09 DE DE89104211T patent/DE58906609D1/en not_active Expired - Lifetime
- 1989-03-13 US US07/322,564 patent/US4977911A/en not_active Expired - Fee Related
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| EP1367302A2 (en) | 2002-05-27 | 2003-12-03 | Dürr Systems GmbH | Sealing arrangement |
| DE102005015604A1 (en) * | 2005-04-05 | 2006-10-19 | Dürr Systems GmbH | Rotary atomizer component for coating components of vehicle, has bushing-shaped shaft cover which covers bearing shaft when mounted partially in area of annular gap |
| DE102005015604B4 (en) * | 2005-04-05 | 2007-04-12 | Dürr Systems GmbH | Rotationszerstäuberbauteil |
| DE102005044154A1 (en) * | 2005-09-15 | 2007-04-05 | Dürr Systems GmbH | Rotationszerstäuberbauteil |
| DE102005044154B4 (en) * | 2005-09-15 | 2007-09-27 | Dürr Systems GmbH | Rotationszerstäuberbauteil |
| DE102007048248A1 (en) | 2007-10-08 | 2009-05-14 | Dürr Systems GmbH | Robot with a cleaning device and associated operating method |
| EP3012031A1 (en) | 2007-10-08 | 2016-04-27 | Dürr Systems GmbH | Robot with a cleaning device and associated operating method |
| EP3012032A1 (en) | 2007-10-08 | 2016-04-27 | Dürr Systems GmbH | Robot with a cleaning device and associated operating method |
| EP4378593A1 (en) | 2022-12-02 | 2024-06-05 | Polyplan-GmbH Polyurethan-Maschinen | Deaerating device |
| DE102022004530A1 (en) | 2022-12-02 | 2024-06-13 | Polyplan-GmbH Polyurethan-Maschinen | Ventilation device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE58906609D1 (en) | 1994-02-17 |
| US4977911A (en) | 1990-12-18 |
| EP0333040A3 (en) | 1990-07-25 |
| EP0333040A2 (en) | 1989-09-20 |
| DE3808801A1 (en) | 1989-10-05 |
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