EP0829788A2 - Procédé de dépÔt automatique d'un revêtement sur des pièces, par exemple carrosseries de véhicule - Google Patents

Procédé de dépÔt automatique d'un revêtement sur des pièces, par exemple carrosseries de véhicule Download PDF

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Publication number
EP0829788A2
EP0829788A2 EP97115463A EP97115463A EP0829788A2 EP 0829788 A2 EP0829788 A2 EP 0829788A2 EP 97115463 A EP97115463 A EP 97115463A EP 97115463 A EP97115463 A EP 97115463A EP 0829788 A2 EP0829788 A2 EP 0829788A2
Authority
EP
European Patent Office
Prior art keywords
coating
control
control computer
oscillation frequency
coating devices
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
EP97115463A
Other languages
German (de)
English (en)
Other versions
EP0829788A3 (fr
EP0829788B1 (fr
Inventor
Jan-Peter Dipl.-Ing. Grigoleit
Jens Dipl.-Ing. Häcker
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 EP0829788A2 publication Critical patent/EP0829788A2/fr
Publication of EP0829788A3 publication Critical patent/EP0829788A3/fr
Application granted granted Critical
Publication of EP0829788B1 publication Critical patent/EP0829788B1/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
    • 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
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the conveyed articles being vehicle bodies
    • 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
    • B05B13/041—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 with spray heads reciprocating along a straight line

Definitions

  • the invention relates to a method for the automatic coating of workpieces, e.g. Motor vehicle bodies according to the preamble of claim 1.
  • a quality-perfect coating is only possible in such a system if the oscillation frequency (double stroke number) of all the atomizers coating one side of a body matches. If the vertices of the applied zigzag-shaped lacquer tracks of the various vertical levels are at different points along the conveying direction or drift apart during asynchronous movements, an optimally uniform vertical overlap is not possible.
  • the invention is based on the object of specifying a method with which movement synchronization and a coating with optimal overlap of the various coating material webs can be achieved with the simplest possible, user-friendly input of the necessary control parameters.
  • control computer calculates the oscillation frequency required for this width, taking into account the conveying speed.
  • control commands for the oscillation frequency and for the position of the impact points (or for the starting points of the Lanes) can, for example, be entered into the control computer as numerically determined values.
  • the programming is preferably carried out using a screen connected to the control computer, on which the surface of the workpiece to be coated and the paths to be generated corresponding to the movement curves of the coating devices and their longitudinal displacements caused by the further control command are displayed.
  • the mutual distances between the coating devices no longer play a role, since they are automatically taken into account by the displacement of the webs to be applied along the conveying direction and corresponding switch-on points of the atomizers or the like.
  • the conveyor speed no longer has to be taken into account when programming the movements. If the conveying speed changes, it may be necessary to adjust other coating parameters; on the other hand, the movements of the coating devices relative to the workpiece remain the same.
  • the painting station according to FIG. 1 contains on both sides of a conveyor 1 (not shown in more detail) for bodies not shown either, three side machines 2, each with a rotary atomizer 3.
  • the atomizers 3 perform cyclical up and down movements during operation along vertical guides, specifically each in its own stroke range, as indicated in Fig. 1 by different vertical central positions.
  • a control panel for the system can be seen, to which a control computer with a screen belongs.
  • the coating system is program-controlled in a known manner (preferably in the manner of a painting robot path control which can trace a contour in a band-synchronized manner).
  • the atomizer 3 on the left in the drawing first begins to produce an approximately zigzag-shaped lacquer path on the vertically lowest region of the side surface of the body due to its up and down movement. As soon as the body reaches the middle atomizer, this begins to produce a similar paint path on a vertically middle body area. Similarly, from the right atomizer 3 a paint path in the top surface area of the body. After passing through the body, the atomizer spray is switched off.
  • the top vertices, for example, of the webs applied by the various coating devices should always lie at points on the workpiece that match in the conveying direction, that is to say here vertically one above the other on the body.
  • the desired web or spray jet width is determined in accordance with the respective other system conditions, in particular depending on the nominal conveying speed and the atomizer spacing. According to a certain linear relationship, which is not of interest here, the steepness of which depends on the atomizer distance, the optimal spray jet width (i.e. the vertical oscillation frequency increases) with increasing conveying speed.
  • the illustration contains the side outline 10 of the body to be coated, on which the four coating curves 11, 12, 13 and 14 of the atomizers in question that actually result on the body are overlaid exactly to scale.
  • the stroke size between the vertices of the individual curves can be different and can be set as desired by entering appropriate commands, as can the vertical positions of the respective curves and thus the paint webs to be applied as a whole. With the same oscillation frequency but different stroke sizes of different atomizers, their movement speeds obviously have to be correspondingly different.
  • the curves shown automatically have the same oscillation frequency.
  • the vertices of the various curves are initially out of phase with one another in a random manner due to the other system programming.
  • the operator merely has to shift the curves shown on the screen to the left or right so that the desired match is achieved by means of appropriate control commands, which can, for example, control the switch-on times of the atomizers. The same applies to the case that other phase relationships are desired for some reason.

Landscapes

  • Spray Control Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP97115463A 1996-09-16 1997-09-05 Procédé de dépôt automatique d'un revêtement sur des pièces, par exemple carrosseries de véhicule Expired - Lifetime EP0829788B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19637730 1996-09-16
DE19637730A DE19637730C1 (de) 1996-09-16 1996-09-16 Verfahren zum automatischen Beschichten von Werkstücken

Publications (3)

Publication Number Publication Date
EP0829788A2 true EP0829788A2 (fr) 1998-03-18
EP0829788A3 EP0829788A3 (fr) 1999-11-03
EP0829788B1 EP0829788B1 (fr) 2003-06-04

Family

ID=7805802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97115463A Expired - Lifetime EP0829788B1 (fr) 1996-09-16 1997-09-05 Procédé de dépôt automatique d'un revêtement sur des pièces, par exemple carrosseries de véhicule

Country Status (3)

Country Link
EP (1) EP0829788B1 (fr)
DE (2) DE19637730C1 (fr)
ES (1) ES2200101T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0934777A3 (fr) * 1998-02-04 2003-04-09 Dürr Systems GmbH Procédé et système de commande de programme pour produire les données de commande d'une installation de revêtement
EP1302828A2 (fr) 2001-10-15 2003-04-16 Dürr Systems GmbH Système de commande par programme et procédé de commande d'une installation de peinture
EP1384521A1 (fr) * 2002-07-25 2004-01-28 Dürr Systems GmbH Procédé pour revêtir des pièces avec un pulvérisateur dans lequel un diluant est introduit
US8097293B2 (en) 2006-11-21 2012-01-17 Durr Systems Inc. Operating method for an atomiser and a corresponding coating apparatus
CN103477292A (zh) * 2011-02-07 2013-12-25 杜尔系统有限责任公司 至少一个机器人的动态特性适应

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844979A1 (de) * 1997-05-27 2000-04-06 Voith Sulzer Papiermasch Gmbh Verfahren zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragmediums auf eine laufende Oberfläche
FR2777483A1 (fr) * 1998-04-15 1999-10-22 Sames Sa Procede et installation de projection de produit de revetement
DE102014113525B4 (de) * 2014-09-19 2022-05-19 Baumer Hhs Gmbh Verfahren und Vorrichtung zum intermittierenden, einzelne Auftragsbereiche erzeugenden Auftrag von fließfähigem Medium auf ein Substrat
DE102015006473A1 (de) * 2015-05-21 2016-11-24 Eisenmann Se Ansteuerverfahren für einen Hochrotationszerstäuber

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298313A2 (fr) * 1987-07-09 1989-01-11 Behr Industrieanlagen GmbH & Co. Procédé et installation pour le revêtement de pièces en séries
WO1993018860A1 (fr) * 1992-03-21 1993-09-30 Licentia Patent-Verwaltungs-Gmbh Procede et dispositif d'enduction automatique d'objets au moyen d'un pulverisateur
DE4339748A1 (de) * 1993-11-22 1995-05-24 Licentia Gmbh Verfahren und Anordnung zum Steuern einer Vielzahl von Spritzwerkzeugen für die Oberflächenbeschichtung von Fahrzeugen oder deren Teile
DE29504954U1 (de) * 1995-03-23 1995-09-14 Boellhoff Elektrostatik Nieder Spritzvorrichtung zum Beschichten von Rahmenbauteilen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298313A2 (fr) * 1987-07-09 1989-01-11 Behr Industrieanlagen GmbH & Co. Procédé et installation pour le revêtement de pièces en séries
WO1993018860A1 (fr) * 1992-03-21 1993-09-30 Licentia Patent-Verwaltungs-Gmbh Procede et dispositif d'enduction automatique d'objets au moyen d'un pulverisateur
DE4339748A1 (de) * 1993-11-22 1995-05-24 Licentia Gmbh Verfahren und Anordnung zum Steuern einer Vielzahl von Spritzwerkzeugen für die Oberflächenbeschichtung von Fahrzeugen oder deren Teile
DE29504954U1 (de) * 1995-03-23 1995-09-14 Boellhoff Elektrostatik Nieder Spritzvorrichtung zum Beschichten von Rahmenbauteilen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0934777A3 (fr) * 1998-02-04 2003-04-09 Dürr Systems GmbH Procédé et système de commande de programme pour produire les données de commande d'une installation de revêtement
EP1302828A2 (fr) 2001-10-15 2003-04-16 Dürr Systems GmbH Système de commande par programme et procédé de commande d'une installation de peinture
EP1384521A1 (fr) * 2002-07-25 2004-01-28 Dürr Systems GmbH Procédé pour revêtir des pièces avec un pulvérisateur dans lequel un diluant est introduit
US8097293B2 (en) 2006-11-21 2012-01-17 Durr Systems Inc. Operating method for an atomiser and a corresponding coating apparatus
CN103477292A (zh) * 2011-02-07 2013-12-25 杜尔系统有限责任公司 至少一个机器人的动态特性适应
CN103477292B (zh) * 2011-02-07 2016-07-20 杜尔系统有限责任公司 至少一个机器人的动态特性适应

Also Published As

Publication number Publication date
DE59710205D1 (de) 2003-07-10
ES2200101T3 (es) 2004-03-01
DE19637730C1 (de) 1998-01-29
EP0829788A3 (fr) 1999-11-03
EP0829788B1 (fr) 2003-06-04

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