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EP1314480A1 - Procédé et appareil pour un système d'alimentation en peinture dans un appareil de revêtement avec un ramoneur - Google Patents

Procédé et appareil pour un système d'alimentation en peinture dans un appareil de revêtement avec un ramoneur Download PDF

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Publication number
EP1314480A1
EP1314480A1 EP02025207A EP02025207A EP1314480A1 EP 1314480 A1 EP1314480 A1 EP 1314480A1 EP 02025207 A EP02025207 A EP 02025207A EP 02025207 A EP02025207 A EP 02025207A EP 1314480 A1 EP1314480 A1 EP 1314480A1
Authority
EP
European Patent Office
Prior art keywords
paint
pig
channel
inlet channel
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
Application number
EP02025207A
Other languages
German (de)
English (en)
Other versions
EP1314480B1 (fr
Inventor
Joachim Hering
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duerr Systems AG
Original Assignee
Duerr Systems AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP1314480A1 publication Critical patent/EP1314480A1/fr
Application granted granted Critical
Publication of EP1314480B1 publication Critical patent/EP1314480B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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 for supplying a color Atomizer and a coating device with an atomizer for the serial coating of workpieces with coating material changing color according to the generic term of independent claims.
  • the object of the invention is a method for supplying a color Atomizer or a coating device that still enable lower color losses than before.
  • Fig. 1 shows the paint tube 12 connected to the paint nozzle 10 Speed rotary atomizer.
  • the paint inlet channel leads through the paint tube 12 14 to the as a control valve for switching on and off of the spray serving main needle valve 16 to which the Color output channel 18 of the paint nozzle 10 is connected.
  • a detergent valve KS separate channel 28 for detergent for short rinsing the bell plate in a known manner.
  • the paint inlet channel 14 is piggable and outside according to the invention of the color tube 12 connected to a first pig station 30.
  • the pig station 30 in turn has a valve arrangement 34 with a color valve F and a return valve RF1 connected, for example via a common line 35, however, separate lines could also lead to these valves.
  • the second pig station 32 is shown inside of the paint tube 12 at the end of the paint inlet channel on the control valve side 14, ie immediately at its connection to the Main needle valve 16 arranged. In the second pig station 32 the pig 33 is shown.
  • At both pig stations 30 and 32 can be sensors for monitoring the respective pig end position are with which high control accuracy of pig and pressure processes described below can be reached is.
  • this is at the free end of the needle 22 arranged cylindrical needle head 23 of the main needle valve 16 displaceable in a cylindrical valve bore 25 in the paint tube 12, at the end facing away from the needle with the paint nozzle the atomizer, i.e. connected to the color output channel 18 is, and in the middle of that coming from the paint input channel 14 Cross bore 15 opens.
  • the main needle valve is 16 between the corresponding in the drawing Arrows indicated three valve positions switchable (in Contrary to the previously known and usual atomizers, their Main needle valve as a 2/2-way valve only two switch positions Has).
  • valve position 1 the needle head 23 sits on the nozzle-side end of the valve bore 25, so that the way in the Channel 18 of the paint nozzle 10 is shut off during the Pig station 32 and the transverse bore 15 through the valve bore 25 leading into the needle bore 20 is open.
  • the needle head 23 is shown in the valve position 2, in which he connects the transverse bore 15 to the interior of the valve blocks and consequently the pig station 32 against the Paint nozzle 10 and seals against the needle bore 20.
  • valve position 3 is finally the way blocked between the valve bore 25 and the needle bore 20, while the pig station 32 is connected to the paint nozzle 10.
  • valve position 3 As soon as the pig here a predetermined point along the Pig line reached, for short rinsing the paint nozzle 10 that Valve RF closed and the main needle valve 16 out of the valve position 1 can be switched to valve position 3, see above that the newt moves out the detergent as it moves pushes the channel 14 out of the atomizer through the nozzle 10, for example in the paint booth.
  • the predetermined one Switchover point can be defined in different ways z. B. after a defined time or by Signal one on the appearance of the newt at the predetermined Place appealing pig sensor or by measuring the amount of paint flowing in through the paint valve F.
  • Advantageous is consequently the one used to rinse the nozzle 10
  • the amount of detergent is always constant and reproducible.
  • the newt press process is finished as soon as the newt 33 in its target station 32 arrives.
  • the main needle valve 16 When the pig 33 is pressed from the paint into the target station 32 can by switching the main needle valve 16 the ink nozzle 10 is "pressed" into the valve position 3, i.e. the colored paint past the pig to the nozzle outlet opening be pressed. After that, the main needle valve is in its Position 2 switched so that the system is ready for painting.
  • the pig 33 If the pig 33 is in its position when the color valve F is open Target station 32 is located, under the control of the main needle valve 16 can be painted. At valve position 3 occurs the colored paint through the channel 18 out of the paint nozzle 10. to Interruption of the paint flow becomes the main needle valve 16 in his position 2 switched back.
  • the main needle valve 16 first switched to its position 2 and the color valve F closed. This is then used to pig the channel 14 Main needle valve 16 switched to valve position 1 and a valve for pig push medium opened, for example that Valve MSM in the valve block 26. At the same time, the color valve F the valve assembly 34 opened. From the sliding medium Newt 32 from its position in the target station 32 in which it is in the immediate vicinity of the paint nozzle 10, in his Source station 30 pushed back, being the whole in the paint tube 12 (with the exception of valve bore 25 and the short cross bore 15) located paint to the source station and through pushes it back into the paint supply system. As Sliding medium could also use detergent from valve V. become.
  • the color-guiding Channels are flushed through the detergent that comes out of the valve V into that to the return valve RF1 of the valve arrangement 34 connected return line of the pig station 30 flows.
  • the Main needle valve 16 is in the valve position 1.
  • the paint inlet channel 14 is again flooded with the detergent as before the start of the coating.
  • the valve assembly 34 at the pig swell station can be on any dosing system can be connected upstream, for example by a dosing pump, by piston metering or ink quantity measurement and in particular also by one of the patent applications DE 10033987, DE 10131562 or DE ... (15545) dated 27/11/2001 described
  • a / B pig systems can be formed in each of which the desired predetermined amount of color between conveyed two newts through an insulating line becomes.
  • the one serving as the source station is located Pig station 30 in the immediate vicinity of the dosing system. If the upstream dosing system is a pigging system whose target station is close to the pig station 30.
  • the pig station 30 is located outside the paint tube 12 and usually outside of the atomizer and is with the part of the paint inlet channel 14 located in the paint tube 12 a piggable pipe section forming a continuation of the channel 14 14 'connected. If the containing the color tube 12 Atomizers, for example, manually or in a known manner Automatically interchangeable on the wrist of a painting robot is mounted, this line piece 14 'through a piggable coupling 44 at the interface between the Atomizer and the robot wrist and through the wrist extend into the subsequent robot arm, in which the pig station 30 can be accommodated.
  • the valve arrangements too 26 and 34 are conveniently located outside of Atomizer.
  • the needle bore is used 20 both as a return line for the detergent when pressed the pig as well as a feed line for the pig pushing medium.
  • the pig of the paint inlet channel described here is but not only with the main needle valve 16 of the illustrated Realizable embodiment. It can also be a known one Needle valve switchable between only two valve positions can be used, at the pig station 32 a separate line connected for the required pig push medium is.
  • FIG. 2 An example of this is shown in Fig. 2, in which the Paint nozzle 110 with the ink outlet channel 118, the ink inlet channel 114 with the pig stations 130 and 132 and the piggable Coupling 137 correspond to the exemplary embodiment according to FIG. 1.
  • the main needle valve 116 is, however, that in rotary atomizers usual (cheap) 2/2-way valve, which by its actuator 123 is only switched between two positions in which it is the Away from the pig station 132 via the cross bore 115 in the Paint outlet channel 118 of the paint nozzle opens or blocks.
  • the mode of operation otherwise corresponds to the exemplary embodiment 1.
  • the return valve can RF1 and the color valve F of the valve assembly 134 as shown via separate channels to the pig station 130 be connected.
  • the color input channel of the Paint tube 12 or 112 connected to an A / B paint supply system be as it is in the patent application DE 101 57 966.7 is described, in other words for the metered supply of material two piston dosing containers or others with automatically changeable Outflow rate of empty paint containers alternately each filled with color material that with predetermined Volume in an upstream supply line and is pushed into the container by a newt.
  • the pigging system explained on the basis of the drawing is suitable not only for high-speed rotary atomizers, but also for any other atomizer types.

Landscapes

  • Spray Control Apparatus (AREA)
  • Road Signs Or Road Markings (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP02025207A 2001-11-27 2002-11-11 Procédé et appareil pour un système d'alimentation en peinture dans un appareil de revêtement avec un ramoneur Expired - Lifetime EP1314480B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10157938 2001-11-27
DE10157938A DE10157938A1 (de) 2001-11-27 2001-11-27 Verfahren zur Farbversorgung eines Zerstäubers und Beschichtungsvorrichtung

Publications (2)

Publication Number Publication Date
EP1314480A1 true EP1314480A1 (fr) 2003-05-28
EP1314480B1 EP1314480B1 (fr) 2004-05-06

Family

ID=7706998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02025207A Expired - Lifetime EP1314480B1 (fr) 2001-11-27 2002-11-11 Procédé et appareil pour un système d'alimentation en peinture dans un appareil de revêtement avec un ramoneur

Country Status (4)

Country Link
EP (1) EP1314480B1 (fr)
AT (1) ATE265892T1 (fr)
DE (2) DE10157938A1 (fr)
ES (1) ES2217234T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1360996A1 (fr) 2002-05-07 2003-11-12 Dürr Systems GmbH Méthode et appareil d'alimentation et de revêtement de peinture électriquement conductive
EP1362642A1 (fr) 2002-05-07 2003-11-19 Dürr Systems GmbH Méthode et système d'alimentation et d'application de peinture
EP1362641A1 (fr) 2002-05-07 2003-11-19 Dürr Systems GmbH Méthode et appareil pour délivrer de la peinture à un applicateur et pour le nettoyer
EP1584376A2 (fr) 2004-04-06 2005-10-12 Dürr Systems GmbH Procédé de transport d'un materiau de revêtement et machine de revêtement
WO2017001186A1 (fr) * 2015-06-29 2017-01-05 Eisenmann Se Piston racleur pour dispositif de revêtement et installation de revêtement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10239516A1 (de) * 2002-08-28 2004-03-18 Dürr Systems GmbH Schlauch für die elektrostatische Beschichtung von Werkstücken
DE102004042512A1 (de) * 2004-09-02 2006-03-30 Hydac Accessories Gmbh Ventilvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222789A (en) * 1988-09-15 1990-03-21 Henry Tomasz Lupa Paint spraying systems
EP0888825A2 (fr) * 1997-07-03 1999-01-07 Lactec Gesellschaft für moderne Lackiertechnik mbH Procédé et appareil de peinture
EP0904848A1 (fr) * 1997-09-26 1999-03-31 Dürr Systems GmbH Procédé et installation de revêtement d'objets en série

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222789A (en) * 1988-09-15 1990-03-21 Henry Tomasz Lupa Paint spraying systems
EP0888825A2 (fr) * 1997-07-03 1999-01-07 Lactec Gesellschaft für moderne Lackiertechnik mbH Procédé et appareil de peinture
EP0904848A1 (fr) * 1997-09-26 1999-03-31 Dürr Systems GmbH Procédé et installation de revêtement d'objets en série

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1360996A1 (fr) 2002-05-07 2003-11-12 Dürr Systems GmbH Méthode et appareil d'alimentation et de revêtement de peinture électriquement conductive
EP1362642A1 (fr) 2002-05-07 2003-11-19 Dürr Systems GmbH Méthode et système d'alimentation et d'application de peinture
EP1362641A1 (fr) 2002-05-07 2003-11-19 Dürr Systems GmbH Méthode et appareil pour délivrer de la peinture à un applicateur et pour le nettoyer
EP1584376A2 (fr) 2004-04-06 2005-10-12 Dürr Systems GmbH Procédé de transport d'un materiau de revêtement et machine de revêtement
WO2017001186A1 (fr) * 2015-06-29 2017-01-05 Eisenmann Se Piston racleur pour dispositif de revêtement et installation de revêtement
CN107810067A (zh) * 2015-06-29 2018-03-16 艾森曼欧洲公司 用于涂装设备的清管器以及涂装系统
US11149897B2 (en) 2015-06-29 2021-10-19 Eisenmann Se Pig for a coating device, and coating system

Also Published As

Publication number Publication date
ES2217234T3 (es) 2004-11-01
ATE265892T1 (de) 2004-05-15
DE50200406D1 (de) 2004-06-09
EP1314480B1 (fr) 2004-05-06
DE10157938A1 (de) 2003-06-05

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