EP1348487B1 - Installation de revêtement avec un pulvérisateur et un pompe de dosage - Google Patents

Installation de revêtement avec un pulvérisateur et un pompe de dosage Download PDF

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Publication number
EP1348487B1
EP1348487B1 EP03006080A EP03006080A EP1348487B1 EP 1348487 B1 EP1348487 B1 EP 1348487B1 EP 03006080 A EP03006080 A EP 03006080A EP 03006080 A EP03006080 A EP 03006080A EP 1348487 B1 EP1348487 B1 EP 1348487B1
Authority
EP
European Patent Office
Prior art keywords
piston
coating
pump
coating installation
installation
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
Application number
EP03006080A
Other languages
German (de)
English (en)
Other versions
EP1348487A1 (fr
Inventor
Stefano Giuliano
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 EP1348487A1 publication Critical patent/EP1348487A1/fr
Application granted granted Critical
Publication of EP1348487B1 publication Critical patent/EP1348487B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
    • F04B7/06—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports the pistons and cylinders being relatively reciprocated and rotated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/148—Pistons, piston-rods or piston-rod connections the piston being provided with channels which are coacting with the cylinder and are used as a distribution member for another piston-cylinder unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports

Definitions

  • the invention relates to a coating system according to the preamble of claim 1.
  • it is a Plant with electrostatic rotary atomizers or air atomizers for the serial coating of workpieces such as Car bodies with frequently changing colors.
  • the invention relates to a nebulizer for such Plant containing a dosing pump.
  • the dosage is also known with color quantity control loops, which are essentially from an electronic universal regulator as a control element, a serving as an actuator color pressure regulator and a flow measuring device exist for actual value detection and the as a shut-off Serving main needle valve of the usual atomizer upstream (Dürr / Behr Technical Handbook 02/1994 "Color flow control”; DE 101 42 355).
  • the invention is based on the object, a coating system or a nebulizer with a very accurate dosing pump which is smaller and lighter, a much smaller one Dead space volume has smaller and in the case of a color change Color, detergent and time losses caused than previously in coating systems known and customary dosing.
  • valveless piston metering pump selected according to the invention is in Principle known per se for many decades (DE 509 222), wherein for generating the superimposed translation and Rotational movements u.a. various joint and crank gears were used (DE 35 20 233, DE 196 19 675, DE 37 11 107, DE 198 25 769).
  • Metering pumps in the invention preferred Embodiment as a so-called wobble piston pump with to change of the stroke volume adjustable inclination angle between the Axes of the drive shaft and the piston are commercially available.
  • the invention is based on the knowledge that these special pump in coating equipment and atomizers of here considered species has numerous previously unrecognized advantages.
  • valveless pump when installing the valveless pump in a nebulizer it also has the advantage of being much smaller, easier and easier than in coating systems so far used metering pumps and also with relatively low Torque, so operated with small and light drive motors can be. Accordingly small and compact can the Atomizers are built, resulting in coating machines and especially in robots advantageous in terms of dynamic Mobility and in terms of accessibility closer Workpiece areas and of workpiece inner areas is.
  • the pump is also suitable for dosing two-component paints (2K) with exactly maintainable mixing ratio in 2K mixing units that are much smaller and lighter than so far and thereby open new placement opportunities. by virtue of of the possible high pressure, the pump is suitable e.g. Well for 2K water clearcoat.
  • Another advantage is the possibility to easily use the Switching direction of the metering pump, as in paint supply systems Of coating equipment is often required.
  • the piston pump 1 shown schematically in Fig. 1 consists in the main thing from one in a cylinder bore 2 along its Axially displaceable cylindrical piston 3 and a through the Arrow at 4 indicated drive motor which moves the piston and at the same time it turns. Transverse into the cylinder bore 2 lead each other coaxially opposed holes, as Inlet opening 8 and outlet opening 10 are used.
  • Both the piston 3 and the bore 2 containing cylinder can be extremely precise, preferably made of ceramic become.
  • the piston pump can be directly or via a detachable coupling of a continuously rotating drive shaft are driven.
  • the drive shaft is pivotally mounted, so that their axis with the piston axis to change the flow rate adjustable angle forms. Except by changing the Speed of the drive motor 4 can therefore also the flow rate by changing the inclination of the pump head and the associated Change the stroke of the piston 3 in the cylinder bore 2 are adjusted.
  • a transmission which is a translational drive movement superimposed on a rotational movement.
  • a transmission For example, one of the known joint or Crank constructions can be used, but can for the invention expedient also a cam mechanism between the rotating Shaft of the drive motor and the piston to be switched.
  • the mathematical Function which defines the defined translatory Describes movement of the piston in the cylinder can be freely programmable, for example when using a known as Radiax engine radial-axial servo motor.
  • the transmission of the generated defined movements to the piston may be appropriate via a magnetic coupling or other fixed or releasable coupling done. Furthermore, between the Piston and its drive motor a flexible or rigid intermediate shaft be arranged.
  • Two or more piston metering pumps may also be considered here Art be provided, the at least one atomizer or when installed in a nebulizer, the outlet opening for the coating material forming paint nozzle in parallel or can be connected in series, the piston movements also controlled by different mathematical functions could be.
  • parallel connected metering pumps for the mixture of two-component coating materials be used.
  • FIG. 2 shows the metering pump according to FIG. 1 with additional features the invention.
  • the piston pump 1 'with additional Terminals 21 and 22, through which e.g. on liquid or possibly also gaseous cleaning medium for backwashing of the pump head through the rear, against the pumping chamber 9 sealed and therefore depressurized cylinder chamber 25 passed can be.
  • a sealing element 24 sit.
  • the connections 21, 22 can also be used to introduce and discharge a liquid serve, with the example optically the seal of the piston 3 can be monitored.
  • a paint compatible transparent liquid such as "mesanol” is used which discolor with seal leaks, e.g. in one transparent conduit part at the outlet port 22 visually observed and / or for the automatic generation of an alarm signal can be visually evaluated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Reciprocating Pumps (AREA)
  • Spray Control Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Details Of Reciprocating Pumps (AREA)

Claims (13)

  1. Installation de revêtement pour le revêtement en série de pièces, en particulier avec un matériau de revêtement changeant de couleur, comportant un pulvérisateur de la tête de pulvérisation duquel le matériau de revêtement sort à un débit réglable et commandable, et comportant une pompe de dosage (1) entraínée de manière commandée pour le matériau de revêtement, laquelle est montée entre un système d'alimentation en matériau et l'ouverture de sortie de la tête de pulvérisation, caractérisée en ce que la pompe de dosage est une pompe à piston (1) sans soupape dont le piston (3) est tourné, à chaque mouvement de sa course, autour de son axe s'étendant dans la direction de la course.
  2. Installation de revêtement selon la revendication 1, caractérisée en ce que la pompe à piston (1) est entraínée directement ou par un accouplement séparable, par un arbre d'entraínement tournant en continu.
  3. Installation de revêtement selon la revendication 2, caractérisée en ce que l'arbre d'entraínement est monté pivotant et forme avec l'axe du piston un angle réglable pour faire varier le débit.
  4. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce qu'il est monté entre le piston (3) et son moteur d'entraínement (4) un mécanisme à cames (5) qui superpose au mouvement d'entraínement en rotation un mouvement en translation ou, au mouvement d'entraínement en translation un mouvement de rotation.
  5. Installation de revêtement selon la revendication 4, caractérisée en ce qu'un disque à cames entraínant le piston est disposé entre l'arbre d'entraínement parallèle à l'axe du piston et le piston.
  6. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce que le piston est entraíné par l'intermédiaire d'un accouplement magnétique.
  7. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce que sont disposés entre le piston et son moteur d'entraínement (4), une transmission (5), un accouplement fixe ou séparable et/ ou un arbre intermédiaire flexible ou rigide.
  8. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce qu'à la pompe de dosage (1') sont raccordées des conduites (21, 22) pour un produit de nettoyage, pour laver la chambre de cylindre (25) sur la partie arrière du piston (3) et/ou pour un liquide de contrôle indiquant des défauts d'étanchéité à l'intérieur de la pompe.
  9. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce qu'en amont du pulvérisateur ou de son ouverture de sortie pour le matériau de revêtement sont montées en parallèle ou en série deux pompes à piston sans soupape ou plus.
  10. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce que le sens de transport des pompes à piston (1) sans soupape peut être inversé.
  11. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce qu'une dérivation (28) avec une soupape, (29) commandée est prévue entre l'entrée (26) et la sortie (27) de la pompe à piston (1') sans soupape.
  12. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce que le moteur (4), entraínant directement le piston (3), est commandé pour régler une pression prédéterminée dans la chambre de cylindre (2) de la pompe à piston (1).
  13. Pulvérisateur pour une installation de revêtement selon l'une des revendications 1 à 12, comportant une tête de pulvérisation et une pompe de dosage pour le matériau de revêtement montée en amont de l'ouverture de sortie de la tête de pulvérisation pour le matériau de revêtement, à l'intérieur du pulvérisateur, qui est entraínée de manière commandée pour régler le débit, caractérisé en ce que la pompe de dosage se trouvant dans le pulvérisateur est une pompe à piston (1) sans soupape dont le piston (3) est tourné, à chaque mouvement de sa course, autour de son axe s'étendant dans la direction de la course.
EP03006080A 2002-03-25 2003-03-19 Installation de revêtement avec un pulvérisateur et un pompe de dosage Expired - Lifetime EP1348487B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10213270A DE10213270A1 (de) 2002-03-25 2002-03-25 Beschichtungsanlage mit einem Zerstäuber und einer Dosierpumpe
DE10213270 2002-03-25

Publications (2)

Publication Number Publication Date
EP1348487A1 EP1348487A1 (fr) 2003-10-01
EP1348487B1 true EP1348487B1 (fr) 2004-08-04

Family

ID=27798169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03006080A Expired - Lifetime EP1348487B1 (fr) 2002-03-25 2003-03-19 Installation de revêtement avec un pulvérisateur et un pompe de dosage

Country Status (4)

Country Link
EP (1) EP1348487B1 (fr)
AT (1) ATE272449T1 (fr)
DE (2) DE10213270A1 (fr)
ES (1) ES2225804T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102498293A (zh) * 2009-08-21 2012-06-13 杜尔系统有限责任公司 用于计量涂层介质的摆动活塞泵

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5872694B2 (ja) 2011-07-14 2016-03-01 デデルト コーポレイション 電磁軸受および永久磁石回転子を有する回転式噴霧器
EP2764244B1 (fr) * 2011-09-28 2018-03-28 Sensile Pat AG Système de distribution de fluide
CN103858850B (zh) * 2012-12-18 2016-06-01 范明合 农用全自动复配式喷药机
DE102016108020A1 (de) * 2016-04-29 2017-11-02 Polyplan Gmbh Polyurethan-Maschinen Funktionsblock für eine Polyurethananlage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5810886A (en) * 1985-05-10 1986-12-04 Bergman, Manfred Valve-free piston pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102498293A (zh) * 2009-08-21 2012-06-13 杜尔系统有限责任公司 用于计量涂层介质的摆动活塞泵
CN102498293B (zh) * 2009-08-21 2016-01-20 杜尔系统有限责任公司 用于计量涂层介质的摆动活塞泵

Also Published As

Publication number Publication date
DE10213270A1 (de) 2003-10-16
ES2225804T3 (es) 2005-03-16
DE50300045D1 (de) 2004-09-09
ATE272449T1 (de) 2004-08-15
EP1348487A1 (fr) 2003-10-01

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