EP1246703A2 - Device for spraying a coating product - Google Patents
Device for spraying a coating productInfo
- Publication number
- EP1246703A2 EP1246703A2 EP01903910A EP01903910A EP1246703A2 EP 1246703 A2 EP1246703 A2 EP 1246703A2 EP 01903910 A EP01903910 A EP 01903910A EP 01903910 A EP01903910 A EP 01903910A EP 1246703 A2 EP1246703 A2 EP 1246703A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- valve
- assembly
- installation according
- line
- 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
Links
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
- B05B12/149—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 characterised by colour change manifolds or valves therefor
Definitions
- the invention relates to an installation for spraying coating product and, more specifically, to an installation comprising at least one projector capable of selectively projecting different products onto objects to be coated.
- a coating product change block or "color change block” to supply one or more coating product projectors from different lines each connected to a coating product tank.
- EP-A-0 274 322 discloses an installation in which a multi-axis robot carries a reservoir of coating product connected to a projector and allowing it to be supplied with product from connection means provided at a fixed station in a cabin .
- WO-A-99/52 644 discloses a method and an installation for spraying coating product in which a tank filling-cleaning station, carried by a multi-axis robot and associated with a projector, is arranged in a cabin, this station comprising a product change block connected to supply circuits and a carousel of tanks for the least used shades.
- DE-A-42 14 779 discloses a manual color changing device in which alignment between a downstream pipe and several upstream pipes is obtained by rotation of a plate. Controlled valves must be provided both upstream and downstream of this device, these valves having to be operated manually or consisting of solenoid valves whose cost price is important.
- Known systems therefore generally include a large number of solenoid valves or controlled valves as well as numerous hoses and pneumatic fittings for these valves, which increases their cost price and makes cleaning operations more complex insofar as these valves must be cleaned with great care in order to avoid harmful mixing of the coating materials to a quality projection as required, in particular, in the field of motor vehicle construction.
- US-A-3, 240, 225 discloses a paint selection apparatus in which inlets of paint conduits are arranged in a circle, which imposes large amplitude movements on the connection device associated with them. This results in the compulsory use of relatively long flexible hoses which must be purged and cleaned during each change of product, hence a relatively large consumption of paint and solvent. In addition, the circular movements imposed on the movable members are long, hence a relatively long minimum cycle time for a paint change operation.
- the invention more particularly intends to remedy by proposing an installation comprising a system for changing the coating product that is reliable and economical while it remains easy to clean.
- the invention relates to a coating product projection installation comprising at least one projector and several supply lines of this projector with coating product connected to a connection assembly, in which each downstream end of a line supply is equipped with a shut-off valve capable of being controlled by an actuator piloted and disposed at the inlet of a supply duct for the headlight, this actuator and this assembly being able to be moved one by relative to the other, so that the actuator can be selectively disposed opposite a downstream end of one of the supply lines and maneuver the valve of this line.
- This installation is characterized in that the line ends are arranged in rows and in columns while a set, comprising the actuator is connected to the supply duct, is movable parallel to a flat face of this plate where the ends open line.
- a single actuator is used for the selective connection of several supply lines with the projector and / or an associated tank. It is therefore not necessary to provide a large number of actuators, such as solenoid valves, as is the case in the systems of the prior art.
- the valves housed in the downstream ends of the supply lines are only controlled by the actuator when the latter is correctly positioned relative to the corresponding end, so that there is no risk of accidental opening when the connection assembly and the supply duct are not correctly positioned in relation to each other. The risk of coating product leakage is therefore minimized and the installation is by nature "anti-drip".
- the device of the invention is substantially more compact than those of the prior art while the angular position of the supply lines on the one hand and of the supply duct on the other hand are compatible with a high speed flow of the coating material.
- the ends of the supply lines and the supply duct are easy to clean, which allows a gain in coating product during product changes.
- due to the row and column arrangement of the line ends it is possible to freely move the assembly comprising the actuator in two directions perpendicular to each other and parallel to the planar face. This facilitates the selection of the coating product to be sprayed.
- the installation incorporates one or more of the following characteristics:
- each end of supply lines comprises elastic return means in the closed position, the actuator being able to open this valve against one of these return means.
- the actuator is able to be partially engaged in each end of the supply line and comprises a part forming a pusher able to move a valve of the corresponding valve to an open position of this valve.
- the connection assembly comprises means for supplying air and / or cleaning product to the conduit and / or the actuator, these means being connected continuously to the mobile assembly, by means of flexible tubes.
- the actuator comprises a tubular sleeve able to penetrate into the shut-off valve at the end of the supply line and inside which is arranged a closing valve. of the conduit, this sleeve being able to immobilize the movable assembly relative to the plate by cooperation of shapes.
- the actuator comprises a pneumatically controlled pusher and movable in translation in a chamber formed in a body integral with the projector and comprising a reservoir for the storage of coating product.
- a pneumatically controlled pusher and movable in translation in a chamber formed in a body integral with the projector and comprising a reservoir for the storage of coating product.
- the body advantageously comprises means for connecting the chamber to a source of air and / or cleaning product.
- FIG. 2 is a partial cross section of a connection assembly of the installation of Figure 1 before assembly;
- Figure 3 is a partial cross section of the installation of Figure 1 during a first step of use
- Figure 4 is a view similar to Figure 3 during a second step of use
- FIG. 5 is a schematic representation of the principle of an installation according to a second embodiment of the invention
- - Figure 6 is a partial section of the installation of Figure 1 in a first configuration
- FIG. 7 is a partial section along the line VII-VII in Figure 6 and - Figure 8 is a view similar to Figure 6, while the installation is in a second operating configuration.
- the installation shown in Figures 1 to 4 includes a manual projector 1 of coating product intended for use by an operator inside a cabin.
- This projector is supplied with coating product, air and cleaning product through a flexible conduit 2 connected to an assembly 3 intended to be installed at the level of a partition 4 of the coating cabin.
- the assembly 3 comprises a base plate 5 pierced with thirty orifices 6 arranged in rows and columns while juxtaposed spacers 7 define between them zones for receiving and immobilizing the downstream ends 10 of pipes 8 each connected to a source of coating product.
- the spacers 7 are held in position relative to each other by a clamping band 9.
- the number of spacers 7 and the number of orifices in the plate 5 is adapted according to the number of coating products intended to be used in the installation.
- the downstream end 10 of a pipe 8 is received in a sleeve 11 provided with a valve 12 loaded elastically by a spring 13 in the direction of a seat 14.
- Two O-rings 15 are arranged downstream of the valve 12.
- the sleeve 11 constitutes an end plug of the pipe 8, this plug being able to be opened by displacement of the valve 12 against an elastic force E x exerted by the spring 13 and by the pressure of the product inside the pipe 8.
- the tightness of the device formed of elements 11 to 15 makes it possible to set up the different ends 10 of different pipes 8 between two spacers 7, without risk of leakage.
- the different ends 10 of the pipes 8 are immobilized between spacers 7 and the strip 9 is used to hold the pipes 8 and the spacers 7 in position.
- Each orifice 6 of the plate 5 is equipped with a valve 16 provided with a fixed central element 17 and with an annular valve 18 capable of coming to bear against the element 17 forming a seat, under the effect of a elastic force E 2 exerted by a spring 19.
- the body 20 of the valve 16, which is connected to the element 17 by lugs 21, is extended by a tubular part 22 intended to be engaged in an outlet bore 23 of the sleeve 11.
- each valve body 20 thus constitutes the downstream end a supply line formed by a pipe 8, a sleeve 11 and a valve 16.
- a selection member 30 is formed by a connector capable of being selectively mounted on one of the orifices 6, with the exception of two particular orifices 6A and 6B which are respectively connected to a source of pressurized air and to a source of cleaning product for the projector 1.
- the selection member 30 is connected to the orifices 6A and 6B by two flexible tubes 31A and 31B, the tubes 31A and 31B being connected to the conduit 2 inside the member 30.
- L 'member 30 includes a valve 32 comprising a generally cylindrical body 33 and a valve 36 loaded by a spring 35 generating elastic force E 3 towards an internal frustoconical part of the body 34, the valve itself being frustoconical.
- the member 30 can be moved parallel to the flat end face 5a of the plate 5 so as to selectively bring the valve 32 opposite one of the valves 16.
- all he has to do is select - ner, automatically or manually, the corresponding orifice 6, which can be identified by a label not shown, and to arrange the member 30 facing this orifice by a movement in a vertical direction ZZ ', in the direction of arrow F 2 or arrow F 4 , or in a horizontal direction XX ', in the direction of one of the arrows F x and F 3 .
- the directions XX 'and ZZ' are parallel to the front face 5a of the plate 5.
- the part 34 therefore makes it possible both to immobilize the member 30 relative to the plate 5 by cooperation of shapes and to operate the valve 18 of the end valve 16 of the supply line to which the pipe 8 belongs. .
- a projector 101 is mounted inside a projection assembly 141 disposed at the end of the arm 142 of a multi-axis robot and including a reservoir 143 for temporary storage of coating product.
- a connection assembly 103 comprising an interface plate 105 whose substantially planar front face 105a is provided with various orifices 106 connected to pipes 108 for supplying coating product.
- a unit 150 is connected to a source of pressurized air and to a source of cleaning product by two flexible conduits 151A and 151B.
- the unit 150 is movable in translation, parallel to the front face 105a and in two directions XX ′ and Z-Z ′, as represented by the arrows F x to F 4 .
- a control unit of the installation determines which of the orifices 106 must be connected to this reservoir. Following this determination, the unit 150 is moved by any suitable means, for example by a trolley controlled by jacks, to be placed immediately below the orifice 106 selected.
- the assembly 141 can be brought into the same position for each cleaning-filling operation.
- the unit 150 is then mobile essentially in a direction perpendicular to the surface 141b between two positions respectively in abutment against this surface and at a distance from the assembly 141.
- the assembly 103 is then mounted on a mobile carriage along three orthogonal axes, so that it can bring, as required, one of the orifices 106 facing the actuator 132.
- the relative position of the actuator and the orifices is adjusted by moving the set 103 while set 141 retains the same position for each cleaning-filling operation.
- the assembly 141 is moved by the arm 142, also according to the arrows F ⁇ to F 4 , to arrive in the position of FIG. 6 where an orifice 130 for entering the coating product in the assembly 141 is disposed opposite the orifice 106 considered, while a second orifice 131, formed on a face 141b of the assembly 141 generally perpendicular to the face 141a in which the orifice 130 is formed, is disposed opposite an orifice 152 from unit 150.
- Each orifice 106 is equipped with a valve 112 undergoing an elastic force E 2 generated by a spring 113 in the direction of a seat 114 formed by a frustoconical part Coming in material with the plate 105.
- An O-ring 115 is placed around each orifice 106 and is intended to seal the contact between the surfaces 105a and 141a around the orifices 106 and 130.
- the valve 112 is guided in translation, in an internal conduit 111 of the plate 105 emerging at the orifice 106, by means of a washer 112a itself immobilized with respect to the conduit 111 by a circlip 112b and against which the spring 113.
- the elements 111 to 114 thus constitute a valve 116 at the end of a line for supplying a coating product, comprising a pipe 108 and which is closed by default under the effect of the force E 2 .
- a chamber 133 Downstream of the orifice 130, a chamber 133 is formed inside which is movable a pusher 134 forming one end of an actuator 132 whose other end comprises a piston 136 undergoing an elastic force E 3 generated by a spring 135 and directed so that it tends to move the pusher 134 away from the orifice 130.
- a conduit 137 connects the orifice 131 and the chamber 133, so that air and / or a cleaning product coming from the unit 150 can be directed to the chamber 133.
- the housing 133 is connected to a conduit 102 supplying the reservoir 143 and, through it, to the projector 101.
- XX ' is noted the axis of symmetry of the orifice 106 and of the elements 111 and 115. This axis XX' is also that of the orifice 130 and of the elements 132 to 136 in the positions of FIGS. 6 to 8.
- the duct 137 and the duct 102 are eccentric with respect to the axis XX 'so that a flow of pressurized air and / or trains of air and of cleaning product flows in swirls around the actuator 132 in the chamber 133, as represented by the arrow F 6 in FIG. 7. This ensures effective cleaning of the actuator 132, in particular in the event of a change of coating product.
- pressurized air is directed in the direction of the piston 136 through a conduit 138 as shown by the arrow F 7 in FIG. 8, this which has the effect of moving the actuator 132 as shown by arrow F 8 , a front part or nose 139 of the valve 134 then penetrating inside the orifice 106 and pushing the valve 112 against the return force E 2 exerted by the spring 113.
- This has the effect of spreading the valve 112 from the seat 114 thereby allowing a flow of the coating product from the pipe 108 towards the duct 102 as shown by the arrows E.
- the air pressure on the piston 136 is brought to a velor such that the actuator is moved to 1 'against the effort E 3 to the point that the frustoconical portion 134a of the pusher 134 comes into sealing abutment against a seat also frustoconical 130a bordering the orifice 130.
- This allows to isolate the chamber 133 from the end during circulation cleaning fluid. This also makes it possible to isolate the chamber 133 from pollution originating from the ambient atmosphere.
- a stop being provided on the front face 105a of the plate 105.
- An O-ring 153 is placed around the orifice 152 and seals between the unit 150 and the face 141b of the assembly 141. Centering pins 161, 162 and 163 allow satisfactory relative positioning of the elements 105, 141 and 150.
- This embodiment has the particular advantage that the valve 112 of each of the valves 116 formed in the conduits 111 by the elements 112 to 114 can only be operated by the actuator 132 if the orifices 130 and * 106 are correctly aligned, which avoids any risk of leakage at these holes.
- the plates 5 and 105 can be arranged in horizontal planes, their respective front faces 5a and 105a being oriented downwards while an optical detector is placed under the assembly 3 or 103. Thus, a possible product leakage at the level an orifice 6 or 106 is immediately detected, the neighboring orifices not being soiled by a flow of product along the surface 5a or 105a.
- valves for purging excess coating material can be provided.
- the coating product circulating in the pipes 8 or 108 is advantageously filtered in order to reduce the risk of leakage at the bearing surfaces of the valves on the corresponding seats.
Landscapes
- Spray Control Apparatus (AREA)
- Nozzles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0000489A FR2803776B1 (en) | 2000-01-14 | 2000-01-14 | COATING PRODUCT SPRAYING SYSTEM |
FR0000489 | 2000-01-14 | ||
PCT/FR2001/000072 WO2001051216A2 (en) | 2000-01-14 | 2001-01-10 | Device for spraying a coating product |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1246703A2 true EP1246703A2 (en) | 2002-10-09 |
EP1246703B1 EP1246703B1 (en) | 2005-06-22 |
Family
ID=8845943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01903910A Expired - Lifetime EP1246703B1 (en) | 2000-01-14 | 2001-01-10 | Device for spraying a coating product |
Country Status (6)
Country | Link |
---|---|
US (1) | US6651902B2 (en) |
EP (1) | EP1246703B1 (en) |
AU (1) | AU3187101A (en) |
DE (1) | DE60111607T2 (en) |
FR (1) | FR2803776B1 (en) |
WO (1) | WO2001051216A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10115471B4 (en) * | 2001-03-29 | 2010-05-27 | Dürr Systems GmbH | Color change system for a coating system |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7506127B2 (en) * | 2001-12-21 | 2009-03-17 | Network Appliance, Inc. | Reconfiguration of storage system including multiple mass storage devices |
US7127798B1 (en) | 2003-04-04 | 2006-10-31 | Network Appliance Inc. | Method for converting disk drive storage enclosure into a standalone network storage system |
ATE318186T1 (en) | 2003-07-28 | 2006-03-15 | Duerr Systems Gmbh | COLOR CHANGE VALVE ARRANGEMENT OF A COATING SYSTEM |
WO2006004601A1 (en) * | 2004-06-03 | 2006-01-12 | Nordson Corporation | Color change for powder coating material application system |
US20060219807A1 (en) * | 2004-06-03 | 2006-10-05 | Fulkerson Terrence M | Color changer for powder coating system with remote activation |
US8073899B2 (en) * | 2005-04-29 | 2011-12-06 | Netapp, Inc. | System and method for proxying data access commands in a storage system cluster |
US20080011333A1 (en) * | 2006-07-13 | 2008-01-17 | Rodgers Michael C | Cleaning coating dispensers |
RU2427432C2 (en) * | 2006-12-12 | 2011-08-27 | Дюрр Системз Гмбх | Coat applier with metering device |
DE102006058562A1 (en) | 2006-12-12 | 2008-08-14 | Dürr Systems GmbH | Coating device for serially coating workpieces with different shades comprises a separate color changer containing color valves to which are connected color lines for the coating material |
DE102007029195A1 (en) | 2007-06-25 | 2009-02-19 | Dürr Systems GmbH | Coating device for serially coating workpieces with different shades comprises a separate color changer containing color valves to which are connected color lines for the coating material |
DE102008015258B4 (en) * | 2008-03-20 | 2023-05-25 | Dürr Systems Ag | Color changer for a painting robot |
BRPI0910228B1 (en) * | 2008-03-20 | 2019-11-26 | Duerr Systems Gmbh | painting robot |
DE102008037035B4 (en) * | 2008-08-08 | 2023-05-25 | Dürr Systems Ag | Valve arrangement of a painting robot |
EP2361691A1 (en) | 2010-02-19 | 2011-08-31 | Ramseier Koatings Technologies AG | Switch for fluids |
EP2596921A1 (en) * | 2011-11-25 | 2013-05-29 | Staeubli Tec-Systems GmbH | Multi-coupling system for connecting multiple tools with at least one supply unit |
EP2606981B1 (en) * | 2011-12-20 | 2014-04-30 | ABB Technology AG | Colour change module and colour changer |
EP2644281B1 (en) * | 2012-03-29 | 2019-05-08 | ABB Schweiz AG | Colour changer |
DE102013007694A1 (en) * | 2013-05-03 | 2014-11-06 | Eisenmann Ag | Changing device for coating media and coating system for coating objects |
DE102014011415A1 (en) * | 2014-07-31 | 2016-02-04 | Eisenmann Ag | Changing device for coating media and coating system for coating objects |
EP3610955A1 (en) * | 2015-04-15 | 2020-02-19 | Apson Lackiertechnik GmbH | Colour changing system |
DE102015110312B4 (en) | 2015-06-26 | 2019-08-01 | Gema Switzerland Gmbh | Powder switch and powder dispensing system with powder switch |
DE102015008845A1 (en) * | 2015-07-13 | 2017-01-19 | Eisenmann Se | Changing device and coating system for coating objects |
DE102016113505A1 (en) * | 2016-07-21 | 2018-01-25 | Apson Lackiertechnik Gmbh | Color Change System |
CN108970842B (en) * | 2018-07-06 | 2023-08-29 | 上海千歌环保科技有限公司 | Novel plane color-changing valve |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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US2257004A (en) * | 1938-10-07 | 1941-09-23 | Chrysler Corp | Coating material spraying apparatus |
US3135467A (en) * | 1962-12-03 | 1964-06-02 | Greenman Leo | Automatic all color producing paint spray unit |
US3240225A (en) * | 1963-01-17 | 1966-03-15 | Benjamin G Barrows | Selecting and purging apparatus |
US3443578A (en) * | 1966-10-12 | 1969-05-13 | Programmed & Remote Syst Corp | Color select valve for spray guns |
US3674207A (en) * | 1970-11-06 | 1972-07-04 | Emidio J Carbonetti Jr | Automated paint spray system |
CH539461A (en) * | 1971-08-02 | 1973-07-31 | Gema Ag App Bau | Powder spray gun for spraying different colored powders from a gun powder channel |
US3924810A (en) * | 1974-11-04 | 1975-12-09 | Ford Motor Co | Sprayable material changer apparatus |
US4163523A (en) * | 1976-12-15 | 1979-08-07 | Vincent Raymond A | Multicolor paint dispensing system having a pressure responsive color change valve |
FR2609252B1 (en) | 1987-01-02 | 1989-04-21 | Sames Sa | INSTALLATION FOR SPRAYING COATING PRODUCT SUCH AS FOR EXAMPLE PAINT AND IN PARTICULAR INSTALLATION FOR ELECTROSTATIC PROJECTION OF WATER-BASED PAINT |
US5221047A (en) * | 1991-08-13 | 1993-06-22 | Gmfanuc Robotics Corporation | Method and system for cleaning a paint supply line and changing paint colors in production paint operations |
US5215122A (en) * | 1991-12-09 | 1993-06-01 | Aeroquip Corporation | Quick disconnect fluid coupling with integral pressure relief feature |
US5211197A (en) * | 1992-01-03 | 1993-05-18 | Aeroquip Corporation | Quick disconnect liquid line coupling with volumertric expansion couping element |
DE4214779C2 (en) | 1992-05-04 | 1995-07-27 | Flaekt Ransburg Bmbh | Hand color changer |
US5406980A (en) * | 1994-03-28 | 1995-04-18 | Aeroquip Corporation | Deep drawn quick connect coupling |
FR2777482B1 (en) | 1998-04-15 | 2000-12-29 | Sames Sa | METHOD AND INSTALLATION FOR SPRAYING COATING PRODUCTS BY MEANS OF AN AUTOMATON EQUIPPED WITH A TANK |
-
2000
- 2000-01-14 FR FR0000489A patent/FR2803776B1/en not_active Expired - Fee Related
-
2001
- 2001-01-10 AU AU31871/01A patent/AU3187101A/en not_active Abandoned
- 2001-01-10 US US10/169,933 patent/US6651902B2/en not_active Expired - Lifetime
- 2001-01-10 WO PCT/FR2001/000072 patent/WO2001051216A2/en active IP Right Grant
- 2001-01-10 EP EP01903910A patent/EP1246703B1/en not_active Expired - Lifetime
- 2001-01-10 DE DE60111607T patent/DE60111607T2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0151216A2 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10115471B4 (en) * | 2001-03-29 | 2010-05-27 | Dürr Systems GmbH | Color change system for a coating system |
Also Published As
Publication number | Publication date |
---|---|
DE60111607T2 (en) | 2006-04-20 |
US6651902B2 (en) | 2003-11-25 |
FR2803776A1 (en) | 2001-07-20 |
AU3187101A (en) | 2001-07-24 |
US20030015607A1 (en) | 2003-01-23 |
DE60111607D1 (en) | 2005-07-28 |
FR2803776B1 (en) | 2002-06-07 |
WO2001051216A3 (en) | 2002-02-07 |
EP1246703B1 (en) | 2005-06-22 |
WO2001051216A2 (en) | 2001-07-19 |
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