EP0796664A2 - Installation de revêtement à réservoir interchangeable - Google Patents

Installation de revêtement à réservoir interchangeable Download PDF

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Publication number
EP0796664A2
EP0796664A2 EP97104632A EP97104632A EP0796664A2 EP 0796664 A2 EP0796664 A2 EP 0796664A2 EP 97104632 A EP97104632 A EP 97104632A EP 97104632 A EP97104632 A EP 97104632A EP 0796664 A2 EP0796664 A2 EP 0796664A2
Authority
EP
European Patent Office
Prior art keywords
container
valve block
piston rod
opening
plant
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
EP97104632A
Other languages
German (de)
English (en)
Other versions
EP0796664A3 (fr
EP0796664B1 (fr
Inventor
Kurt Dipl.-Ing. Vetter
Michael Dipl.-Ing. Baumann
Jürgen Dipl.-Ing. Haas
Thomas Dipl.-Ing. Hezel
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 EP0796664A2 publication Critical patent/EP0796664A2/fr
Publication of EP0796664A3 publication Critical patent/EP0796664A3/fr
Application granted granted Critical
Publication of EP0796664B1 publication Critical patent/EP0796664B1/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
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B05B5/1616—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material
    • B05B5/1625—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material the insulating means comprising an intermediate container alternately connected to the grounded material source for filling, and then disconnected and electrically insulated therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1463—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet separate containers for different materials to be sprayed being moved from a first location, e.g. a filling station, where they are fluidically disconnected from the spraying apparatus, to a second location, generally close to the spraying apparatus, where they are fluidically connected to the latter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0431—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to 3D-surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device

Definitions

  • the invention relates to a coating system according to the preamble of claim 1.
  • an exchangeable container for filling is coupled by the painting robot itself to the tapping points provided on the wall of the spray booth and is picked up from there again after filling. So that the container, the inlet and outlet openings of which are located in its cylindrical side wall, can be connected by the robot to the valve openings of the tapping points without too great difficulty, it must be arranged on the outside of the wrist of the robot or at least one movement element which is relative to the robot arm, which is usually only used for rough positioning, can be moved.
  • the automatic coupling process is nevertheless not easy, and there is a relatively high control outlay for the robot movements required for coupling. Furthermore, the dynamic movement behavior of the robot in the wrist area can be impaired by the container.
  • the aim of the invention is a coating system, the interchangeable container of which can be coupled to the valve unit of the spraying device easily and with little control effort.
  • a movable arm of the machine can be brought into a position in which an expedient handling device, which in particular performs a linear movement perpendicular to the receiving device, insert and remove the container.
  • the container can also be inserted by a handling device into the opening of a stationary housing or other system part.
  • the valve unit of the spraying device which is also provided inside the arm or housing part, and can be separated from it when it is removed. All supply and control lines leading to the spraying device can also run inside the machine or system.
  • the container In the operation of a painting robot, the container only has to follow the arm movements of the machine, but not the additional axis movements of the spray device. Furthermore, the container inside the arm or housing part can be easily insulated if it is connected to high voltage with electrostatic coating operation using conductive material. Good insulation possibilities arise especially when the arm or the housing part is made of an insulating material of sufficient length to insulate the spraying device and the container from earthed parts of the system.
  • a container designed as a metering cylinder with a displaceable piston inside the arm or housing part can be coupled very simply to an electromechanical control drive for metered emptying of the container.
  • a piston rod that remains in the system when the container is removed and can be coupled to the container used can be driven by an electric servo motor that is also installed in the system whose type can correspond, for example, to the motors provided in a coating machine for axis drive.
  • the arm 1 of a painting robot is shown. It consists essentially of an elongated housing 3, which is movably mounted at its right end in the drawing in a manner not shown and at its opposite end in a known manner carries additional additional movable members including a wrist or hand axis construction 2, on which the Spray device is arranged.
  • the necessary lines lead from the spray device (not shown in FIG. 1) to a valve block 4 which is permanently installed in the housing 3 at the end of the arm through the interior of the hand axis construction 2.
  • the housing 3 of the arm 1 is closed to the outside with the exception of an opening 6 located on one side of the arm, which is dimensioned so long and wide that a cylindrical container 8 in the position shown, in which its own longitudinal axis to that of the arm 1 is parallel, can be inserted through the opening 6 into an interior of the housing 3 located there and can be removed again after use.
  • the container 8 has in its end face facing the valve block 4 an outlet valve opening 10 which, when the container is emptied, is aligned with an inlet opening of the valve block 4 facing the front end of the container. The exact alignment is confirmed by on Valve block and centering means 12 provided at the container end are reached, which come into engagement with one another when the container 8 is axially pressed and coupled to the valve block 4.
  • a second valve opening located in the front end of the container 8 serves to fill, empty and / or rinse the container at a filling point remote from the system.
  • a pneumatic locking cylinder 30 is provided, the member of which can be pushed against the container is not shown in the drawing.
  • the container 8 is designed as a metering cylinder. It contains a metering piston 14 which can be displaced in the container to empty it and which, during or before the container is filled at the remote filling point, can be put into a position by an automatically controlled electromechanical drive mechanism in which it has a predetermined filling volume for that through one of the valve openings 10 filled coating material defined. In the example shown, this is the total container volume, but in other cases a volume can be set which, including a necessary reserve, is just sufficient for a predetermined coating process. When completely emptied, the metering piston 14 bears against the inner wall of the front end of the container 8, as shown at 14 '.
  • an opening 16 provided in the rear end of the container engages a piston rod 18, which is displaceably mounted in the housing 3 along its longitudinal axis, on the metering piston 14, which is not constantly connected to it, but remains in the housing 3 when the container is replaced.
  • the piston rod 18 is in turn driven by an electric servo motor 22 housed in an enlarged housing part 20 via a clutch 23, a belt or toothed gear 24, a spindle nut 26 guided at 25 and a spindle 28 mounted at 27.
  • an absolute encoder for the servo motor 22 and an inductive tachometer 29 are available.
  • the housing part 20 is closed by a cover 21.
  • the piston rod 18 is mounted in the pneumatic locking cylinder 30 which serves to lock the container.
  • a pneumatic stop sensor 32 is located in the end face of the piston rod 18 and generates a pneumatic signal when the piston rod 18 hits the metering piston 14.
  • the coating machine described here can work with any spray device.
  • an electrostatic spraying device in particular for spraying electrically conductive coating material, which can put the valve block 4 and the container 8, which is expediently made of pressure-resistant metal, at high voltage potential, adequate electrical insulation must be provided to the usually grounded metallic parts of the system.
  • the expanding housing part 20 can be made of aluminum.
  • the housing 3 of the robot arm 1 shown therefore consists of a mechanically stable plastic or other insulating material from the valve block 4 to the housing part 20.
  • the length of the insulating housing 3 is dimensioned such that the required insulating distance 33 results between the rear end of the expediently metallic locking cylinder 30 and the metallic housing part 20.
  • the piston rod 18 is also made of insulating material.
  • FIG. 2 schematically shows the supply system of an electrostatic spray device 35, which can be, for example, a rotary atomizer of a known type and is intended to spray the coating material from the container 8 mounted in the robot arm according to FIG. 1.
  • the main needle valve of the spray device 35 stands when the container is inserted and coupled 8 via a line HN and a color valve F contained in the control valve block 4 with the inlet opening 37 of the valve block and consequently the valve opening 10 of the container 8 in connection.
  • a detergent line V from which a line KS serving to rinse the atomizer bell while bypassing the main needle line HN is branched into the spray device 35, leads to the valve block 4.
  • line V the detergent consisting of thinner reaches the valve block 4 when necessary and in particular when changing colors into the line HN and to the spraying device.
  • Compressed air enters the valve block through a further line PL leading into the valve block 4 and to the spray device 35 through the line HN.
  • line RF which is also connected to the valve block 4 and in parallel to the spray device 35, through which in particular when changing colors non-sprayed coating material and detergent from the other lines, the control valve block and the spray device is passed into a collecting container S.
  • the lines described are located inside the movable system elements.
  • the lines can be at high voltage potential and are therefore designed to be insulating in the further course.
  • the need for electrical insulation is eliminated if, for example, an air atomizer 35 'is connected to the control valve block and the line RF instead of the electrostatic spraying device.
  • the container 8 is filled at a location remote from the coating machine and is preferably transported outside the usual spray booth by a transport system, as described in DE patent application 196 10 589.7 from March 18, 1996, to a container change point, where it is moved from a Handling device gripped and along a linear movement path, for example, through an opening in the cabin wall into the opening 16 of the housing 3 of the one shown in FIG. 1 Armes 1 can be used.
  • the container 8 can, for example, be provided on one side with a handle 38 (FIG. 1), on which it is gripped by a gripper 39 of the handling device mentioned.
  • the pressing and coupling to the valve block 4 takes place automatically.
  • the container is removed from the arm 1 by the handling device, which at the same time inserts a new container filled with the same or a different color as required, if it is not more expedient to use separate devices for inserting and removing.
  • the invention is not limited to the described example of a painting robot, but can also be used with any other mechanical or manual coating devices.
  • the containers are typically used in an opening of an otherwise closed stationary housing or other system part, where they can then be coupled in the manner described with reference to FIGS. 1 and 2.
  • An expedient method consists, for example, of feeding the containers in transportable magazines, from which they are removed for transfer and insertion into the opening of the system part, and into which they can be reinserted for removal after use and removal from the opening.
  • the containers 8 used themselves have numerous advantageous properties. They are suitable for dosing, can be airtight and designed as pressure vessels, offer protection against aging of the coating material, serve as transport containers, ink storage and for decoupling the coating device from ring lines or other ink supply systems, are location-independent, flushable and reusable and can be used easily Characteristics to identify their content or other important circumstances such as of the filling date. Furthermore, they are easy to grip and easy to center and lock when coupling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Spray Control Apparatus (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Nozzles (AREA)
  • Compressor (AREA)
EP97104632A 1996-03-18 1997-03-18 Installation de revêtement à réservoir interchangeable Expired - Lifetime EP0796664B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19610588 1996-03-18
DE19610588A DE19610588B4 (de) 1996-03-18 1996-03-18 Beschichtungsmaschine mit auswechselbarem Behälter

Publications (3)

Publication Number Publication Date
EP0796664A2 true EP0796664A2 (fr) 1997-09-24
EP0796664A3 EP0796664A3 (fr) 1998-04-08
EP0796664B1 EP0796664B1 (fr) 2001-07-11

Family

ID=7788629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104632A Expired - Lifetime EP0796664B1 (fr) 1996-03-18 1997-03-18 Installation de revêtement à réservoir interchangeable

Country Status (3)

Country Link
EP (1) EP0796664B1 (fr)
DE (2) DE19610588B4 (fr)
ES (1) ES2159373T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1252935A2 (fr) 2001-04-25 2002-10-30 Dürr Systems GmbH Procédé de commande du fonctionnement d'une installation de revêtement
EP1010469A3 (fr) * 1998-12-17 2003-02-05 Dürr Systems GmbH Système et procédé d'alimentation en peinture d'une installation de revêtement électrostatique
EP1293260A2 (fr) 2001-09-13 2003-03-19 Dürr Systems GmbH Procédé de revêtement de pièces en séries
EP1314483A2 (fr) 2001-11-27 2003-05-28 Dürr Systems GmbH Procédé et système de distribution de doses de matériau de revêtement à un appareil de revêment
US7908994B2 (en) 2005-10-21 2011-03-22 Duerr Systems, Inc. Automatically steered coating machine also a container for the coating material
US8418647B2 (en) 2005-10-21 2013-04-16 Dürr Systems Inc. Procedure and piston type metering devices for the metered material supply for a coating device

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115472A1 (de) 2001-03-29 2002-10-10 Duerr Systems Gmbh Ventileinheit für eine elektrostatische Beschichtungsanlage
DE10115470A1 (de) 2001-03-29 2002-10-10 Duerr Systems Gmbh Beschichtungsanlage mit einer Zerstäuberwechselstation
DE10115467A1 (de) 2001-03-29 2002-10-02 Duerr Systems Gmbh Werkzeugwechselsystem für eine Maschine
DE10115463A1 (de) 2001-03-29 2002-10-02 Duerr Systems Gmbh Zerstäuber für eine Beschichtungsanlage und Verfahren zu seiner Materialversorgung
DE10231421A1 (de) 2002-07-11 2004-01-22 Dürr Systems GmbH Verfahren und System zur Versorgung eines Pulverbeschichtungsgerätes
DE10233198A1 (de) 2002-07-22 2004-02-05 Dürr Systems GmbH Rotationszerstäuber
DE10239516A1 (de) 2002-08-28 2004-03-18 Dürr Systems GmbH Schlauch für die elektrostatische Beschichtung von Werkstücken
DE10239517A1 (de) 2002-08-28 2004-03-11 Dürr Systems GmbH Beschichtungseinrichtung mit einem Rotationszerstäuber und Verfahren zum Steuern ihres Betriebes
DE10240451A1 (de) 2002-09-02 2004-03-11 Dürr Systems GmbH Sensoranordnung für eine Beschichtungsanlage
DE10245594A1 (de) 2002-09-30 2004-04-08 Dürr Systems GmbH Verfahren zur Kollisionserkennung
US6991178B2 (en) 2003-01-24 2006-01-31 Dürr Systems, Inc. Concentric paint atomizer shaping air rings
ES2685244T3 (es) 2005-10-07 2018-10-08 Dürr Systems Ag Dispositivo de suministro de agente de revestimiento y procedimiento de funcionamiento correspondiente
US8671495B2 (en) 2006-11-06 2014-03-18 Durr Systems, Inc. Scraper pig
DE102011012012A1 (de) * 2011-02-22 2012-08-23 Eisenmann Ag Kolbendosierer für fluide Medien
DE102015016448A1 (de) * 2015-12-21 2017-06-22 Eisenmann Se Beschichtungsvorrichtung zum elektrostatisch geführten Aufbringen von Beschichtungsmaterial
CN117564651B (zh) * 2024-01-19 2024-04-23 安徽汉普斯精密传动有限公司 一种电机油封自动涂油及压装设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087048A (en) * 1977-03-01 1978-05-02 Smrt Thomas John Spraying apparatus
JPS60122073A (ja) * 1983-12-05 1985-06-29 Tokico Ltd 塗装用ロボットの色替装置
EP0274322A1 (fr) * 1987-01-02 1988-07-13 Sames S.A. Installation de projection de produit de revêtement tel que par exemple une peinture et notamment installation de projection électrostatique de peinture à base d'eau

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GB105497A (fr) * 1900-01-01
FR1355588A (fr) * 1963-01-07 1964-06-19 Oreal Nouveau dispositif de fixation pour flacons et en particulier pour flacons contenantune solution aérosol
CH414977A (fr) * 1964-06-22 1966-06-15 Zyma Sa Distributeur de produit liquide
US4098436A (en) * 1976-07-29 1978-07-04 Kohlbeck Anthony J Holder to convert spray can into spray gun
DE8213103U1 (de) * 1982-05-06 1982-09-09 Fuhrig, Wolfgang D., 6200 Wiesbaden Abgabevorrichtung fuer spruehdosen
DE3440381A1 (de) * 1984-11-05 1986-05-07 Ransburg Gmbh, 6056 Heusenstamm Verfahren und vorrichtung zum automatischen elektrostatischen spruehbeschichten
DE8906341U1 (fr) * 1989-05-23 1989-07-13 Sata - Farbspritztechnik Gmbh & Co, 7140 Ludwigsburg, De
DE4013941A1 (de) * 1990-04-30 1991-10-31 Behr Industrieanlagen Anlage zum serienweisen beschichten von werkstuecken mit leitfaehigem beschichtungsmaterial
US5238029A (en) * 1991-10-04 1993-08-24 Fanuc Robotics North America, Inc. Method and system for fluid transfer and non-contact sensor for use therein
FR2695327B1 (fr) * 1992-09-09 1995-07-07 Sames Sa Dispositif de projection électrostatique de produit de revêtement électriquement conducteur, muni d'un réservoir isolé adapté à contenir un tel produit.
FR2703266B1 (fr) * 1993-04-01 1995-06-23 Sames Sa Machine de projection de produit de revêtement.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087048A (en) * 1977-03-01 1978-05-02 Smrt Thomas John Spraying apparatus
JPS60122073A (ja) * 1983-12-05 1985-06-29 Tokico Ltd 塗装用ロボットの色替装置
EP0274322A1 (fr) * 1987-01-02 1988-07-13 Sames S.A. Installation de projection de produit de revêtement tel que par exemple une peinture et notamment installation de projection électrostatique de peinture à base d'eau

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 271 (C-311), 29.Oktober 1985 & JP 60 122073 A (TOKICO KK), 29.Juni 1985, *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010469A3 (fr) * 1998-12-17 2003-02-05 Dürr Systems GmbH Système et procédé d'alimentation en peinture d'une installation de revêtement électrostatique
EP1252935A2 (fr) 2001-04-25 2002-10-30 Dürr Systems GmbH Procédé de commande du fonctionnement d'une installation de revêtement
EP1293260A2 (fr) 2001-09-13 2003-03-19 Dürr Systems GmbH Procédé de revêtement de pièces en séries
EP1314483A2 (fr) 2001-11-27 2003-05-28 Dürr Systems GmbH Procédé et système de distribution de doses de matériau de revêtement à un appareil de revêment
US7908994B2 (en) 2005-10-21 2011-03-22 Duerr Systems, Inc. Automatically steered coating machine also a container for the coating material
US8418647B2 (en) 2005-10-21 2013-04-16 Dürr Systems Inc. Procedure and piston type metering devices for the metered material supply for a coating device

Also Published As

Publication number Publication date
DE59703985D1 (de) 2001-08-16
ES2159373T3 (es) 2001-10-01
DE19610588B4 (de) 2010-08-05
DE19610588A1 (de) 1997-09-25
EP0796664A3 (fr) 1998-04-08
EP0796664B1 (fr) 2001-07-11

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