EP2355934B1 - Projecteur de produit de revetement et procede pour reapprovisionner un tel projecteur en produit de revetement - Google Patents

Projecteur de produit de revetement et procede pour reapprovisionner un tel projecteur en produit de revetement Download PDF

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Publication number
EP2355934B1
EP2355934B1 EP09801512.6A EP09801512A EP2355934B1 EP 2355934 B1 EP2355934 B1 EP 2355934B1 EP 09801512 A EP09801512 A EP 09801512A EP 2355934 B1 EP2355934 B1 EP 2355934B1
Authority
EP
European Patent Office
Prior art keywords
atomizer
reservoir
coating material
duct
spraying
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.)
Active
Application number
EP09801512.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2355934A1 (fr
Inventor
Hervé WALTER
Denis Vanzetto
Franck Gerstch
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.)
Sames Kremlin SAS
Original Assignee
Sames Technologies SAS
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 Sames Technologies SAS filed Critical Sames Technologies SAS
Publication of EP2355934A1 publication Critical patent/EP2355934A1/fr
Application granted granted Critical
Publication of EP2355934B1 publication Critical patent/EP2355934B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • B05B5/1675—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive the supply means comprising a piston, e.g. a piston pump
    • 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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • B05B3/1014—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell

Definitions

  • the present invention relates to a projector which is intended to be moved by a robot to project a coating product to objects to be coated. Furthermore, the present invention relates to a method for replenishing coating product such a projector.
  • coating product is meant a liquid product such as a primer, paint or varnish.
  • FR-A-2,887,474 discloses a projector having a body attached to the wrist of a multi-axis robot, which moves the projector relative to objects to be coated, in this case bodies carried by a conveyor.
  • the projector further includes a coating product reservoir which is housed in a proximal portion of the body.
  • the reservoir has a cylindrical shape that extends along a main axis coincident with the axis of the projector.
  • a turbine and a bowl-shaped spraying member are mounted in the body.
  • the spraying member sprays the coating material generally in a direction of spray which extends the main axis of the projector and its reservoir. In other words, the main axis of the tank is collinear with the direction of spray.
  • the projector has an elongated shape, which limits its agility, that is to say, its ability to reach hard to reach areas, especially inside a motor vehicle body.
  • connection duct and the supply duct generate significant pressure drops, which are likely to reduce the flow of solvent, thus slowing the cleaning operations.
  • a specific duct with low pressure drops is necessary to collect the waste during the cleaning of the projector.
  • a cleaning phase lasts about 20 seconds and causes about 25 cm 3 of paint losses.
  • European patent applications EP 0 587 467 A1 and EP 0851 128 A2 each describe a headlamp according to the preamble of claim 1.
  • the present invention aims in particular to overcome these disadvantages by providing an agile projector, compact and easy to handle by means of a robot.
  • the reservoir housed in the body is offset angularly with respect to the direction of spray, which facilitates spraying into cavities and cleaning / filling the tank.
  • the figure 1 shows a projector 1 comprising a body 11, a tank 10 and spraying means 5.
  • the projector 1 is intended to project a liquid coating product, such as a paint, a primer or a varnish, to objects to be coated, such as bodies.
  • the reservoir 10 serves to contain the product to be sprayed.
  • the body 11 is equipped with fastening means on a robot 2 of multiaxis type.
  • the envelope of the robot 2 is symbolized in phantom lines to the figure 1 .
  • the robot 2 is intended to move the projector 1 relative to the objects to be coated.
  • the body 11 is equipped with a flange 19, which here has the shape of a ring.
  • the fixing means of the projector 1 on the robot 2 comprise a set of screws bearing on the flange 19.
  • the flange 19 is at the interface between the robot 2 and the projector 1.
  • the flange can have various shapes. , in that it allows the body to be connected to the robot, thus fulfilling the function of a base for the projector.
  • the flange 19 defines a terminal axis Y 19 around which the projector 1 moves with respect to the objects to be coated.
  • the terminal axis Y 19 is termed "terminal" because it coincides with the last axis of the robot 2 before the projector 1 itself.
  • the robot 2 has at least six axes for moving the projector 1, including the terminal axis Y 19 .
  • the terminal axis Y 19 is defined by the flange 19 and the robot 2.
  • the terminal axis can be defined not by the flange, but by the robot alone.
  • the body 11 is composed of a proximal portion 11.1 and a distal portion 11.2.
  • the reservoir 10 is housed in the proximal portion 11.1, that is to say it is incorporated in the volume delimited by an envelope 17 of the body 11.
  • the adjectives "proximal” and “distal” are Employed by reference to the flange 19.
  • the adjective "proximal” qualifies an element relatively close to the flange 19, while the adjective “distal” qualifies an element that is further away.
  • the reservoir 10 is generally in the form of a cylinder with a circular base delimited by a cylindrical surface 10.1 and a base 10.2.
  • the reservoir 10 extends along a main axis X 10 , which is horizontal on the figure 1 .
  • the volume V 10 indicated here corresponds to the maximum volume of the reservoir 10.
  • the reservoir 10 has a diameter D 10 of 100 mm and a length L 10 of between 50 mm and 100 mm.
  • the volume V 10 of the tank 10 is approximately 0.8 L, ie 800 cm 3 .
  • the diameter D 10 is between 50 mm and 120 mm and the volume V 10 is between 200 cm 3 and 1000 cm 3 .
  • a disk-shaped piston 18.1 is arranged in the tank 10 to expel the coating material towards the spray means 5, as detailed below.
  • the piston 18.1 is movable in translation along the axis X 10 .
  • the projector 1 further comprises an actuator 18 for moving the piston 18.1 in translation along the main axis X 10 .
  • the actuator 18 may consist of an electric motor or any other equivalent actuator.
  • the actuator 18 has an elongated shape along the main axis X 10 .
  • the actuator 18 is housed in the proximal portion 11.1 of the body 11, in a space delimited, on the one hand, by the reservoir 10 and, on the other hand, by the flange 19.
  • the spraying means 5 comprise a bowl 51, which constitutes a spraying member, and a turbine 52, which forms a means for rotating the bowl 51 around an axis of rotation Y 51 .
  • the spraying means 5 further comprise an injector 53, mounted in a central cavity of the turbine 52, a downstream portion 54 of a supply duct 4, and a spray valve 55, which controls the flow of the fluids in the injector 53, so in the bowl 51.
  • the spray valve 55 opens the downstream portion 54 of the supply duct 4, which allows the flow of the paint through the injector 53 and into the bowl 51.
  • the turbine 52 drives the bowl 51 rotating at high speed.
  • the bowl 51 sprays the paint into fine droplets which thus form a jet 50.
  • the jet 50 generally follows the direction of spraying Y 50 to reach the object to be coated.
  • the bowl 51 is arranged to spray the paint globally in the Y 50 spray direction. Due to the symmetry of revolution of the bowl 51, the jet 50 is in the form of a paraboloid or revolution-symmetrical ogive around the Y 50 spraying direction.
  • the spraying direction Y 50 substantially coincides with the axis of rotation Y 51 of the bowl 51.
  • the spraying means 5 are disposed in a distal portion 11.2 of the body 11.
  • the distal portion 11.2 forms an envelope which contains the spraying means 5.
  • the distal portion 11.2 projects from the proximal portion 11.1 at the level of the spine. location of the tank 10.
  • the main axis X 10 of the reservoir 10 is perpendicular to the spraying direction Y 50, that is to say it forms an angle 10 of 90 ° with the spraying direction Y 50.
  • the angle A 10 is between 50 ° and 100 °.
  • the main axis X 10 and the spraying direction Y 50 are convergent.
  • the adjective "converge” designates two directions that are not collinear, confounded or parallel.
  • the adjective "converge” means that they are also intersecting.
  • the adjective "convergent” means that the orthogonal projection of the main axis X 10 , in a plane parallel to the main axis X 10 and containing the spraying direction Y 50 is secant to the spraying direction Y 50 .
  • the distal portion 11.2 extends globally in the direction of spray Y 50 .
  • the Y terminal axis 19 forms with the Y 50 spray direction an angle A 19 of about 120 °.
  • the angle A 19 is between 110 ° and 130 °. Such angle A 19 gives a great compactness to the projector 1, so good agility in the robot 2.
  • the projector 1 has a port 104.1 for connection to a painting circuit not shown belonging to a replenishment station.
  • Port 104.1 is located on the docking surface 15 of the distal portion 11.1. The paint and the solvent enter the projector 1 through the orifice 104.1, respectively during the filling phases of the tank 10 and the cleaning of the projector 1.
  • the projector 1 further comprises a connection duct 13 connecting the orifice 104.1 to the tank 10 and, more precisely, to its base 10.2.
  • the connection duct 13 extends in the distal portion 11.1, in a rectilinear manner and perpendicular to the base 10.2 and to the docking surface 15.
  • the connecting duct 13 has a length L 13 , taken parallel to the main axis X 10 .
  • the length L 13 is about 50 mm. In practice, the length L 13 is less than or equal to 100 mm.
  • connection duct 13 is formed in part of a valve 100 which controls the flow of paint and solvent into the projector 1. More specifically, the second duct 112 defines the upstream portion of the connecting duct 13.
  • the valve 100 comprises a body 101, a first duct 111 and a second separate duct 112 in which fluids can flow during the filling phases of the reservoir 10, and cleaning and spraying; ie paint, solvent and compressed air.
  • the valve 100 further comprises a first needle 130 and a second needle 160, whose function is to allow or not the flow of these fluids.
  • the body 101 houses the first needle 130 and the second needle 160.
  • the first needle 130 defines a housing adapted to receive a substantial portion of the second needle 160.
  • the feed duct 4 consisting of an upstream portion 14 and a downstream portion 54, and extending from the base 10.2 of the tank 10 to the bowl 51, here has a length of about 260 mm, which must be minimized, and a maximum diameter of about 4 mm.
  • the length of the supply duct 4 is less than or equal to 300 mm and its maximum diameter is less than or equal to 5 mm.
  • the injector 53 has a diameter that can reach 3 mm.
  • the injector 53 has a relatively short length, so that it generates limited pressure losses.
  • the projector 1 further comprises a cleaning duct 16.1 which extends between the valve 100 and the spraying means 5.
  • the cleaning duct 16.1 is shown schematically in dotted lines on the figures 1 and 2 .
  • the cleaning duct is connected to a first downstream section 16.2 and a second downstream section 16.3.
  • the first downstream section 16.2 opens to the bowl 51.
  • the second downstream section 16.3 opens into the injector 53.
  • the cleaning duct 16.1 and the downstream sections 16.2 and 16.3 channel the solvent to and in the spraying means 5, so as to clean or rinse the injector 53 and the surfaces of the bowl 51. More specifically, the cleaning phase involves Compressed air and solvent trains are used to remove paint deposited on soiled surfaces.
  • the valve 100 is particularly compact.
  • the length L 13 of the duct 13 is relatively short, which makes it possible to minimize paint losses and solvent consumption during the cleaning and replenishment phases of the tank 10.
  • a method of replenishing the projector 1 with a coating product for example a paint, firstly comprises a step where the paint remaining in the tank 10 is completely discharged. This residual paint is discharged through the supply pipe. 4 and through the bowl 51.
  • valve 100 is opened to deliver all the solvent in the tank 10, in the cleaning duct 16.1, the downstream sections 16.2 and 16.3 and downstream of the tank 10, through the bowl 51, where it can be recovered. Then, the valve 100 is opened to control the flow of paint in the connecting pipe 13, so as to fill the tank 10 with a paint of a new color.
  • the projector 1 may be devoid of paint and solvent waste collection circuit.
  • the height H 1 of the headlamp 1, measured in the spraying direction Y 50, is about 390 mm.
  • the height H 1 of the projector 1 is selected less than 450 mm, preferably 400 mm.
  • Such a height H 1 facilitates access and clearance of the projector 1 and the robot 2 to hard to reach areas, which is important because the minimum distance between the bowl 51 and the object to be coated is about 200 mm when electrostatic projection.
  • the arrangement of the reservoir 10, with its main axis X 10 not parallel to the spraying direction Y 50 gives the projector 1 good compactness, so great agility to the robot 2.
  • “agility” is meant the ability projector 1 or robot 2 to reach hard to reach areas, especially inside a body.
  • the center of gravity G 1 of the headlamp 1 is positioned closer to the terminal axis Y 19 than the center of gravity of a headlamp of the prior art.
  • the center of gravity G 1 represented on the figure 1 is that of the projector 1 when the tank 10 is full, as during the projection phase.
  • the empty center of gravity is relatively close to the center of gravity G 1 , because the mass of paint contained in the tank 10 is negligible in front of the mass of the projector 1.
  • the distance H 19 between the center of gravity G 1 and the terminal axis Y 19 is about 10 mm.
  • the distance H 19 is measured "shortest", that is to say perpendicularly to the terminal axis Y 19 . In practice, this distance H 19 is selected less than 80 mm, preferably 20 mm.
  • the center of gravity of a projector of the prior art is generally located more than 100 mm from the terminal axis.

Landscapes

  • Spray Control Apparatus (AREA)
  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
EP09801512.6A 2008-12-09 2009-12-08 Projecteur de produit de revetement et procede pour reapprovisionner un tel projecteur en produit de revetement Active EP2355934B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0858414A FR2939333B1 (fr) 2008-12-09 2008-12-09 Projecteur de produit de revetement et procede pour reapprovisionner un tel projecteur
PCT/FR2009/052452 WO2010067014A1 (fr) 2008-12-09 2009-12-08 Projecteur de produit de revetement et procede pour reapprovisionner un tel projecteur en produit de revetement

Publications (2)

Publication Number Publication Date
EP2355934A1 EP2355934A1 (fr) 2011-08-17
EP2355934B1 true EP2355934B1 (fr) 2014-04-02

Family

ID=40749265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09801512.6A Active EP2355934B1 (fr) 2008-12-09 2009-12-08 Projecteur de produit de revetement et procede pour reapprovisionner un tel projecteur en produit de revetement

Country Status (10)

Country Link
US (1) US8746167B2 (pt)
EP (1) EP2355934B1 (pt)
JP (1) JP5698144B2 (pt)
KR (1) KR101665075B1 (pt)
CN (1) CN102292163B (pt)
BR (1) BRPI0917607B1 (pt)
ES (1) ES2458347T3 (pt)
FR (1) FR2939333B1 (pt)
RU (1) RU2500485C2 (pt)
WO (1) WO2010067014A1 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012511418A (ja) * 2008-12-09 2012-05-24 サム・テクノロジー 被覆材料噴霧器およびそうした噴霧器に被覆材料を再供給する方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2939335B1 (fr) * 2008-12-09 2011-11-18 Sames Technologies Station et procede pour reapprovisionner en produit de revetement un projecteur mobile
KR101661575B1 (ko) * 2014-10-22 2016-10-04 (주)연우 스프레이 오리피스 구조
CN104437929B (zh) * 2014-12-24 2016-10-19 天津市久跃科技有限公司 一种新型的喷涂装置
CN105234020A (zh) * 2015-08-28 2016-01-13 宁波市创佳工业设计有限公司 一种美容喷枪的气液组件
DE102017122802B3 (de) * 2017-09-29 2018-10-25 Hauhinco Maschinenfabrik G. Hausherr, Jochums Gmbh & Co. Kg Entzunderungsvorrichtung
RU2699356C1 (ru) * 2018-03-19 2019-09-05 Акростак Корпорейшн (Кипр) Лимитед Роботизированный комплекс для нанесения полимерных и лекарственных покрытий на импланты
CN113909023A (zh) * 2021-09-29 2022-01-11 杭州顺帆体育发展有限公司 一种适用于塑胶跑道安装的喷涂装置

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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.
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FR2797788B1 (fr) * 1999-08-30 2001-11-23 Sames Sa Procede et station de changement de produit dans une installation de projection de produit de revetement
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JP3754632B2 (ja) * 2000-06-26 2006-03-15 Ａｂｂ株式会社 ツートーン塗装方法
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FR2939333B1 (fr) * 2008-12-09 2011-10-21 Sames Technologies Projecteur de produit de revetement et procede pour reapprovisionner un tel projecteur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012511418A (ja) * 2008-12-09 2012-05-24 サム・テクノロジー 被覆材料噴霧器およびそうした噴霧器に被覆材料を再供給する方法

Also Published As

Publication number Publication date
FR2939333A1 (fr) 2010-06-11
JP2012511418A (ja) 2012-05-24
FR2939333B1 (fr) 2011-10-21
KR20110102413A (ko) 2011-09-16
CN102292163A (zh) 2011-12-21
BRPI0917607B1 (pt) 2020-01-21
KR101665075B1 (ko) 2016-10-12
WO2010067014A1 (fr) 2010-06-17
RU2500485C2 (ru) 2013-12-10
US20110277686A1 (en) 2011-11-17
CN102292163B (zh) 2015-04-22
BRPI0917607A2 (pt) 2015-11-17
ES2458347T3 (es) 2014-05-05
JP5698144B2 (ja) 2015-04-08
RU2011128016A (ru) 2013-01-20
EP2355934A1 (fr) 2011-08-17
US8746167B2 (en) 2014-06-10

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