EP1284162A1 - Verfahren und Vorrichtung zum Reinigen einer Lack-Förderleitung in einer Lackiereinrichtung - Google Patents
Verfahren und Vorrichtung zum Reinigen einer Lack-Förderleitung in einer Lackiereinrichtung Download PDFInfo
- Publication number
- EP1284162A1 EP1284162A1 EP02016688A EP02016688A EP1284162A1 EP 1284162 A1 EP1284162 A1 EP 1284162A1 EP 02016688 A EP02016688 A EP 02016688A EP 02016688 A EP02016688 A EP 02016688A EP 1284162 A1 EP1284162 A1 EP 1284162A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- delivery line
- paint
- inert gas
- cleaning
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
- 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
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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
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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
- B05B12/1481—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 method according to the preamble of claim 1 and a Device according to the preamble of claim 8.
- Methods and devices of this type are used in particular in connection with painting devices in the form of robotic painting machines, which e.g. in the automotive industry can be used for painting body parts in a variety of ways. Because of the Customer behavior, today's production requirements (e.g. just in time) and the Such a painting device must have an ever greater variety of colors, particularly in the passenger car sector often on different colored paints or on paints with changing. characteristics be converted, e.g. up to 80 paint changes per day are quite common.
- Modern painting facilities are therefore not only with powerful color changing and Dosing systems that allow a selection from up to 30 different paints, but also equipped with rinsing and cleaning units, by means of which they are ensured is that after a paint change no unwanted residues of the previously used Paint gets onto the respective workpiece surface.
- a problem which arises with such methods and devices for cleaning the delivery lines is that many of the liquid lacquers used today and in particular their hardeners are extremely sensitive to oxygen. Even the smallest paint residues react in the air to form solid lumps or chunks, which are small but become visible on a smooth, painted surface and make the workpiece in question almost unusable. In order to ensure that such lumps, the formation of which is inevitable because of the compressed air used in the cleaning step, are safely removed from the delivery line before the new paint reaches the application unit, on the one hand the use of comparatively large amounts of cleaning agent is necessary.
- the invention is based on the technical problem that To develop the method and the device of the type specified in the introduction such that Lower amounts of paint and cleaning agents to be disposed of during the cleaning steps arise and the risk of lump formation from paint residues largely is avoided.
- the invention has the essential advantage that because of the application of a Inert gas instead of compressed air is no longer a risk that liquid paint residues be converted into solid clumps during the cleaning phases. This allows the cleaning phases are made simpler overall and with smaller quantities Detergents are carried out. Finally, a Significant reduction in the quantities of paint and cleaning agents to be disposed of achieved and thereby contribute to reducing environmental pollution.
- the attached drawing first shows a conventional change of color or varnish Dosing device e.g. A painting device suitable for painting body parts.
- a feed line 1 for paint is used at a first end 1a for connection to a paint reservoir 2 and is at a second end 1b with an applicator 3 connected in terms of flow.
- the application device 3 contains an order element 4, that e.g. from a spray gun, an atomizer or another, known per se Element for spraying, spraying or other application of lacquer in one jet 5 can exist. All other parts of the application device 3 which are not important to the invention have been omitted for simplicity.
- the storage container 2 is preferably by means of a ring line which a flow 6 and has a return line 7, to a color or lacquer changing unit 8 known per se connected.
- This is preferably at least one in addition to the reservoir 2 further storage container 9 connected, for which purpose another, also one Flow 10 and a return 11 ring line is provided.
- both Ring lines each have a controllable valve 12 or 14 connected to the corresponding one Flow 6, 10 either with the associated return 7, 11 or at one connection point each 15, 16 connects to the first end 1 a of the delivery line 1.
- the lead 6, 10 connected to the associated return 7, 11 circulates in the storage container in question 2, 9 liquid paint with a preselected pressure (e.g. approx. 4 bar) in the relevant loop.
- the valve 12, 14 connects the flow 6, 10 with the associated connection point 15 or 16, then paint from the relevant Reservoir 2, 9 pressed into the delivery line 1 and in this in the direction of Transport device 3 transported.
- the storage containers 2 and 9 are e.g. as a pressure vessel or as a membrane or Piston pumps provided containers, from which, as is the case with painting equipment of the type described is usual, the paint is pumped into the ring line 6, 7 or 10, 11 becomes.
- the storage containers 2, 9 are therefore generally referred to as "paint supplies" designated.
- a dosing unit 17 contains in Embodiment a paint pressure regulator 18 and e.g. as a motorized Gear pump designed metering pump 19, both in a row in the delivery line 1 are switched.
- the pressure upstream of the metering pump 19 can be by means of a pressure sensor 20 are measured, while measuring the pressure with which the paint Applicator 3 is fed, another, downstream of the metering pump 19 arranged pressure sensor 21 is used.
- a pressure sensor 20 e.g. a motorized Gear pump designed metering pump 19
- Another, downstream of the metering pump 19 arranged pressure sensor 21 is used.
- paint from the reservoir 2, 9 is thus Applicator 3 supplied.
- one running parallel to the metering pump 19 Beiprudtechnisch 22 in the delivery line 1 to be switched when using certain Types of paint through part of the paint instead of through the slow-running metering pump 19 to let the bypass line 22 run.
- the device described has one with an inert gas, preferably Nitrogen-operated flushing unit 23 for cleaning the delivery line 1.
- the Rinsing unit 23 is by means of a line 24 either directly or via a line, not shown Valve of applicator 3 connected to second end 1b of delivery line 1 in such a way that in one position of this valve through the feed line 1 supplied paint flows out in the form of the jet 5 from the applicator 3, while in another Position of the valve, the line 24 is connected in terms of flow to the delivery line 1 is.
- the application element 4 has one free on the lines 1, 24 connected passage to which a spray nozzle or the like is connected. If there is no painting, this is closed with a needle that is used for a painting process is pulled out of the nozzle to release the jet 5.
- the purging unit 23 has an inert gas source 28 and a cleaning liquid source 29.
- the inert gas source 28 consists, for example, of a conventional nitrogen bottle, from which, when a valve is opened, gaseous nitrogen is pressed into a line 30 which is connected to the line 24 via a connection 31.
- the cleaning liquid source 29 consists, for example, of a storage container from which a cleaning liquid can be pressed under pressure into a line 32 which is connected to the line 24 via a connection 33.
- a pressure regulator 34 In the line 30 in the direction of flow of the inert gas (arrow v ), a pressure regulator 34, a pressure sensor 35, a controllable valve 36, for example a two-way valve, and a check valve 37 are connected one behind the other to prevent the backflow of unwanted media in the direction of the arrow v prevented opposite direction.
- the components 34 to 37 here form not only a means for connecting the inert gas source 28 to the delivery line 1, but also a means for filling the delivery line 1 with inert gas, as will be explained in more detail below.
- a pressure regulator 38, a pressure sensor 39, a check valve 40 and a controllable valve 41 are connected in series in the direction of flow of the cleaning liquid (arrow w ), by means of which the cleaning liquid can be introduced into the line 24 at the connection 33.
- the check valve 40 also prevents undesirable backflows here.
- the components 30 to 41 as explained further below, also form a means for forming a foam mixture.
- the cleaning liquid source 29, like the storage containers 2, 9, can be a pressure container or contain a container with a pump system.
- the desired pressure can then adjusted with the pressure regulator 38 and monitored with the pressure sensor 39.
- the first end 1 a of the delivery line 1 opens according to the accompanying drawing via a controllable drain valve 42 into a collecting container 43.
- the arrangement is preferably such that the connection points 15 and 16, viewed from the drain valve 42, behind in the flow direction (arrow x ) this lie and are connected to the valves 12, 14 via the shortest possible line sections 44, 45.
- a sensor 46 designed in the manner of a proximity switch or the like, for example inductive or capacitive sensor 46, the function of which is explained below.
- Rinsing unit 23 The operation of the painting device described and the invention Rinsing unit 23 is essentially as follows.
- valves 12, 14, 36, 41 and 42 are first closed. By opening one of the valves 12, 14, it is then selected which one Paint is to be released by the applicator 3 during the working phase.
- the Valve 22 is open or closed depending on the paint used. Assuming that Valve 12 is open, thus liquid paint flows out of the reservoir 2 in the the pressure regulator 18 and the metering pump 19 set and by means of the pressure sensors 20, 21 monitored metering to the applicator 3, so that this by automatic or manually opening and closing its outlet nozzle in the usual way can be. This mode of operation remains unchanged as long as the paint from the storage container 2 is processed.
- a cleaning phase for the delivery line 1 is initially provided.
- the valve 36 of the purging unit 23 is opened when the application device 3 is closed, as a result of which the inert gas from the inert gas source 28 passes via the lines 30 and 24 and the application device 3 or directly into the second end 1b of the delivery line 1.
- the pressure of the inert gas readable on the sensor 35 is determined by the setting of the pressure regulator 34.
- the pressure of the inert gas (for example 10 bar) is chosen so that the paint standing in the delivery line 1 is pressed against the usual direction of delivery (arrow x ) back in the direction of the storage container 2 or its ring line. Because of the short line section 44, the paint can be transported back almost completely.
- the sensor 46 monitors this process and emits a signal as soon as it is from the Interface between paint and inert gas is passed. This signal cannot go through a shown, preferably automatic control device can be used to Close valve 12 and open drain valve 42. As a result, the very small amount of paint still standing in front of the inert gas column now through the end 1a of the Delivery line 1 is pressed into the collecting container 43. So only one falls small amount of paint to be disposed of.
- the valve 41 of the flushing unit 23 can simultaneously be opened.
- liquid cleaning agent or solvent flows out of the Storage container 29 into the line 32, which is then in a by means of the pressure regulator 38th set quantity and controlled by means of the sensor 39 via the connection point 33 arrives in line 24.
- the element 4 of the application device 3 can also be briefly opened and thereby freed from paint.
- the flushing unit 23 works in the manner of a high-pressure cleaner and is therefore extremely effective and fast.
- the foam mixture can depend on the paint used can be set differently, so that optimal rinsing can always be achieved.
- the valve 41 for the Cleaning liquid closed.
- the cleaning phase can also be carried out via a preset expiry time from the start of the detergent supply or from the response of the Sensor 46 are ended.
- the inert gas is now again alone through the Conveyed line 1 driven and thereby the detergent still in it is pressed completely into the collecting container 43. The completion of this process is in turn indicated by the sensor 46 or by a preselected expiry time established.
- the entire delivery line 1 is filled exclusively with inert gas, whereupon valve 42 is closed and this condition is maintained until the next Work phase begins and e.g. the valve 14 opened instead of the valve 12 and the valve 36 is closed.
- valve 42 is closed and this condition is maintained until the next Work phase begins and e.g. the valve 14 opened instead of the valve 12 and the valve 36 is closed.
- the valve 36 is closed, whereby the delivery line 1 is closed on all sides.
- the pressure prevailing in the delivery line 1 is continuously measured using the Pressure sensors 20, 21 checked. Is a component leaking or does any medium flow from the outside in an uncontrolled manner in the delivery line 1, then this is done with the Pressure sensors 20, 21 recognized and for generating an alarm signal, a shutdown signal used for the entire facility or the same.
- the valve 22 is here preferably open.
- the element 4 of the Application device 3 can be opened again. This pushes the newly supplied paint first the inert gas column standing in the delivery line 1 out of this.
- the the Sensor 46 signaling the flow of the lacquers can be used to generate a to determine the lead time resulting from the length of the delivery line 1 before using the actual painting work is started when the spraying of the inert gas on the workpiece to be painted should be avoided.
- it is inert gas acts it generally does no harm if the element 4 immediately after the Release of the paint directed by the valve 14 at the workpiece surface in question and thereby some inert gas on the workpiece surface to be painted arrives.
- the delivery line 1 in the same way as described above in connection with the inert gas Checked for possible errors with the help of the varnish pressure in the delivery line 1 become.
- the valve 12, 14 concerned closed the paint pressure at this time in the delivery line 1 as Setpoint pressure specified and this is monitored by means of the pressure sensors 20, 21. at unwanted increase or decrease in this pressure is avoided with the help of the automatic Control device in turn generates an alarm or shutdown signal or the like.
- the valve 22 is preferably open. Should be painted again afterwards, the relevant valve 12, 14 is opened again and the valve 22 is closed again.
- the inert gas in the inert gas source 28 becomes particularly when it is Inert gas is nitrogen, preferably at a certain minimum temperature held, e.g. is equal to or greater than 10 ° C or 20 ° C. This ensures that the paints used are not at temperatures below e.g. 5 ° C cooled where some paints can be destroyed.
- the valves 12, 14 preferably further valves or the like upstream, which during the cleaning phases reduce the pressure in the ring lines 6, 7 or 10, 11 to a value or regulate down that is sufficiently lower than the pressure of the inert gas (e.g. 10 bar) is to achieve the desired recovery of the paint during the cleaning phases guarantee.
- the required delivery pressure is restored.
- the invention has numerous advantages. First, through the application an inert gas that does not react with the varnishes used and the final one Filling of the delivery line 1 with the inert gas ensures that in the delivery line 1 remaining paint residues are not converted into disruptive lumps or the like. this applies for the entire duration of a cleaning phase between two work phases. This can also be avoided that for safety reasons at the beginning of a work phase first a certain amount of paint emerging from the application device 3 into one Collection container must be initiated in order to apply detergent to the Avoid workpiece surface safely, i.e. using the invention, the newly emerging paint can be processed immediately and without waste.
- one formed from the cleaning liquid and the inert gas Cleaning foam can be used, reducing the amount of cleaning fluid needed be significantly reduced. Both measures contribute significantly Reduction of costs, since the costs for the disposal of Hazardous waste can be reduced. Since there is no longer a risk that from lumps of lacquer or the like. Form, the intensity of the to be carried out Cleaning work can be reduced. Apart from that, after a work phase can still paint standing in the delivery line 1 can be almost completely recovered.
- lacquers of different colors lacquers or lacquer types with other different properties can also be selected, for example conventional lacquers in addition to lacquers for so-called metallic coatings.
- other liquids, in particular paints can also be transported through the conveying line 1 instead of paints and the term "paint" in the context of the present invention is intended to include all such liquids suitable for coatings.
- the different steps can be carried out during the cleaning phases in a different order and / or in a different direction and / or with different time cycles.
- the inert gas source 28 used is preferably not a nitrogen bottle, but rather a commercially available nitrogen generator which, for example, generates nitrogen from air at a pressure of up to 15 bar.
- the delivery line 1 can contain other useful components, for example a fine filter that only allows particles up to a size that is slightly larger than the pigment size of the paints used.
- valves 12, 14 of the color changing unit 8 together with the drain valve 42 can be combined to form a compact block, in order thereby to further shorten the line sections 44, 45 or to omit them entirely.
- the invention should include not only the described device for cleaning a paint delivery line 1, but also a complete painting device equipped with such a device.
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Spray Control Apparatus (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Coating Apparatus (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Nozzles (AREA)
Abstract
Description
Das hat zur Folge, daß zu Beginn einer neuen Arbeitsphase bzw. zu Beginn eines neuen Lackierungsschrittes nicht nur das Reinigungsmittel selbst, sondern auch noch eine gewisse Mindestmenge des nachströmenden Lacks durch das Auftragsgerät hindurch ausgetrieben und in einen Auffangbehälter überführt werden muß, bevor mit der eigentlichen Lackierungsarbeit begonnen werden kann, um dadurch sicherzustellen, daß keine Restmengen der meistens ein Lösungsmittel enthaltenden Reinigungsmittel auf die zu lackierende Werkstückoberfläche gelangen.
Claims (18)
- Verfahren an einer Lackiereinrichtung zum Reinigen einer Lack-Förderleitung (1), die von wenigstens einem Vorratsbehälter (2,9) für flüssigen Lack zu wenigstens einem Auftragsgerät (3) für den Lack führt, wobei während Arbeitsphasen der Lack vom Vorratsbehälter (2,9) zum Auftragsgerät (3) gefördert und während dazwischen liegenden Reinigungsphasen ein Reinigungsmittel durch die Förderleitung (1) gedrückt wird, dadurch gekennzeichnet, daß als Gas ein Inertgas verwendet wird und daß die Förderleitung (1) am Ende der Reinigungsphase mit dem Inertgas gefüllt wird und bis zum Beginn der jeweils folgenden Arbeitsphase mit dem Inertgas gefüllt bleibt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß während der Reinigungsphasen zunächst der in der Förderleitung (1) befindliche Lack mittels des Inertgases zurück in den Vorratsbehälter (2,9) gedrückt, dann ein Reinigungsmittel durch die Förderleitung (1) geleitet und dann das Reinigungsmittel durch das Inertgas wieder aus der Förderleitung (1) entfernt wird.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß das Reinigungsmittel in Richtung des Vorratsbehälters (2,9) in die Förderleitung (1) gedrückt und in derselben Richtung aus der Förderleitung (1) entfernt wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das in der Förderleitung (1) befindliche Inertgas zu Beginn einer Arbeitsphase mittels des aus dem Vorratsbehälter (2,9) zugeführten Lacks durch das Auftragsgerät (3) hindurch aus der Förderleitung (1) ausgetrieben wird.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Auftragsgerät (3) beim Durchleiten des Reinigungsmittels durch die Förderleitung (1) kurzzeitig geöffnet wird.
- Verfahren nach einem Ansprüche 1 bis 5, dadurch gekennzeichent, daß Stickstoff als Inertgas verwendet wird.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß als Reinigungsmittel ein aus einer Reinigungsflüssigkeit und dem Inertgas gebildetes Schaumgemisch verwendet wird.
- Vorrichtung an einer Lackiereinrichtung zum Reinigen einer Lack-Förderleitung (1), die wenigstens einen Vorratsbehälter (2,9) mit wenigstens einem Auftragsgerät (3) für den Lack verbindet, um den Lack während Arbeitsphasen vom Vorratsbehälter (2,9) zum Auftragsgerät (3) zu transportieren, enthaltend: eine Spüleinheit (23) zur Förderung eines Reinigungsmittels und/oder eines unter Druck stehenden Gases durch die Förderleitung (1) während zwischen den Arbeitsphasen liegenden Reinigungsphasen, dadurch gekennzeichent, daß die Spüleinheit (23) eine Inertgasquelle (28) und Mittel (36,42) enthält, die zur Füllung der Förderleitung (1) mit dem Inertgas am Schluß einer Reinigungsphase und zum Belassen des Inertgases in der Förderleitung (1) bis zum Beginn der nachfolgenden Arbeitsphase eingerichtet sind.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Spüleinheit (3) an das zweite Ende (1b) der Förderleitung (1) angeschlossen ist.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Mittel (35,42) ein erstes steuerbares Ventil (36) zum Anschluß der Inertgasquelle (28) an die Förderleitung (1) enthalten.
- Vorrichtung nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß die Spüleinheit (23) eine Reinigungsmittelquelle (29) aufweist und das erste Ende (1a) der Förderleitung (1) über ein zweites steuerbares Ventil (42) in einen Auffangbehälter (43) mündet.
- Vorrichtung nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß die Spüleinheit (23) Mittel (30 bis 41) zur Bildung eines Schaumgemischs aus dem Reinigungsmittel und dem Inertgas aufweist.
- Vorrichtung nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, daß der Vorratsbehälter (2) mittels eines dritten steuerbaren Ventils (12) an die Förderleitung (1) angeschlossen ist.
- Vorrichtung nach einem der Ansprüche 8 bis 13 dadurch gekennzeichnet, daß die Förderleitung (1) an dem ersten Ende (1a) mittels wenigstens eines vierten steuerbaren Ventils (14) an wenigstens einen weiteren Vorratsbehälter (9) angeschlossen ist und das dritte Ventil (12) und das vierte Ventil (14) Bestandteile einer zur wahlweisen Zuführung von Lacken unterschiedlicher Eigenschaften, insbesondere Farben, bestimmten Lackwechseleinheit (8) sind.
- Vorrichtung nach einem der Ansprüche 8 bis 14, dadurch gekennzeichnet, daß in die Förderleitung (1) eine Dosiereinheit (17) für den von ihr geförderten Lack geschaltet ist.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß die Dosiereinheit (17) eine Dosierpumpe (19) und eine dieser parallel geschaltete, ein fünftes steuerbares Ventil (22) aufweisende Bypass-Leitung enthält.
- Vorrichtung nach einem der Ansprüche 8 bis 16, dadurch gekennzeichnet, daß sie eine Steuereinrichtung für die steuerbaren Ventile (12,14,22,36,42) derart aufweist, daß nach einer Arbeitsphase zunächst durch Öffnung des ersten steuerbaren Ventils (36) in der Förderleitung (1) befindlicher Lack in den betreffenden Vorratsbehälter (2,9) zurückgedrückt wird, dann das dritte bzw. vierte Ventil (12,14) geschlossen und das zweite Ventil (42) geöffnet wird, danach durch zusätzliches Öffnen eines sechsten steuerbaren Ventils (41) Reinigungsmittel durch die Förderleitung (1) gedrückt wird, und dann nach Schließen des sechsten Ventils (41) das Reinigungsmittel aus der Förderleitung (1) entfernt und diese anschließend durch Schließen des zweiten Ventils (42) ausschließlich mit dem Inertgas gefüllt wird.
- Vorrichtung nach Anspruch 17, dadurch gekennzeichnet, daß die Steuereinrichtung so eingerichtet ist, daß das erste steuerbare Ventil (36) spätestens beim zur erneuten Förderung von Lack bestimmten Öffnen des Auftragsgeräts (3) geschlossen wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10140216A DE10140216B4 (de) | 2001-08-17 | 2001-08-17 | Verfahren und Vorrichtung an einer Lackiereinrichtung zum Reinigen einer Lack-Förderleitung |
DE10140216 | 2001-08-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1284162A1 true EP1284162A1 (de) | 2003-02-19 |
EP1284162B1 EP1284162B1 (de) | 2005-10-26 |
Family
ID=7695640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02016688A Expired - Lifetime EP1284162B1 (de) | 2001-08-17 | 2002-07-26 | Verfahren und Vorrichtung zum Reinigen einer Lack-Förderleitung in einer Lackiereinrichtung |
Country Status (9)
Country | Link |
---|---|
US (2) | US7066186B2 (de) |
EP (1) | EP1284162B1 (de) |
JP (1) | JP3828468B2 (de) |
CN (1) | CN1238115C (de) |
AT (1) | ATE307679T1 (de) |
CA (1) | CA2398121A1 (de) |
DE (3) | DE10140216B4 (de) |
ES (1) | ES2250554T3 (de) |
MX (1) | MXPA02007943A (de) |
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WO2021204748A1 (de) * | 2020-04-09 | 2021-10-14 | Dürr Systems Ag | Beschichtungsmittelpumpe, beschichtungsanlage und zugehöriges betriebsverfahren |
EP3656476B1 (de) | 2017-07-18 | 2023-01-18 | ABB Schweiz AG | Anstreichvorrichtung |
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WO2003095106A2 (en) * | 2002-05-07 | 2003-11-20 | Behr Systems, Inc. | Paint delivery and application system and method |
JP3984920B2 (ja) * | 2003-03-18 | 2007-10-03 | 本田技研工業株式会社 | 静電塗装装置 |
DE10338064A1 (de) * | 2003-08-19 | 2005-05-25 | Daimlerchrysler Ag | Verfahren zum Spülen von Farbventilen |
DE10353789A1 (de) * | 2003-11-18 | 2005-08-11 | Lechler Gmbh | Verfahren einer Pflanzenschutzspritze mit direkter Dosierung der Wirkstoffe an den Düsenhaltern durch hydraulisch angetriebene Dosierpumpen |
DE102004034270B4 (de) * | 2004-07-15 | 2016-08-18 | Wolfgang Schmidt | Anlage zum Austragen fließfähiger Fluide, insbesondere von Farben und Lacken und Verfahren zum Betrieb der Anlage |
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- 2002-07-26 AT AT02016688T patent/ATE307679T1/de not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
---|---|
CN1406677A (zh) | 2003-04-02 |
US20050139237A1 (en) | 2005-06-30 |
DE20118531U1 (de) | 2003-01-16 |
DE50204660D1 (de) | 2005-12-01 |
JP2003136030A (ja) | 2003-05-13 |
ES2250554T3 (es) | 2006-04-16 |
CN1238115C (zh) | 2006-01-25 |
MXPA02007943A (es) | 2005-09-08 |
US7117877B2 (en) | 2006-10-10 |
JP3828468B2 (ja) | 2006-10-04 |
ATE307679T1 (de) | 2005-11-15 |
DE10140216B4 (de) | 2006-02-09 |
US20030041884A1 (en) | 2003-03-06 |
CA2398121A1 (en) | 2003-02-17 |
EP1284162B1 (de) | 2005-10-26 |
DE10140216A1 (de) | 2003-03-06 |
US7066186B2 (en) | 2006-06-27 |
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