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EP2358480B1 - Device and method for supplying a movable sprayer with coating means - Google Patents

Device and method for supplying a movable sprayer with coating means Download PDF

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Publication number
EP2358480B1
EP2358480B1 EP20090801750 EP09801750A EP2358480B1 EP 2358480 B1 EP2358480 B1 EP 2358480B1 EP 20090801750 EP20090801750 EP 20090801750 EP 09801750 A EP09801750 A EP 09801750A EP 2358480 B1 EP2358480 B1 EP 2358480B1
Authority
EP
European Patent Office
Prior art keywords
accumulator
station
coating material
circuit
docking unit
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
EP20090801750
Other languages
German (de)
French (fr)
Other versions
EP2358480A1 (en
Inventor
Patrick Ballu
Thierry Buquet
Cédric LE STRAT
Eric Prus
Hervé WALTER
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
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Application filed by Sames Technologies SAS filed Critical Sames Technologies SAS
Publication of EP2358480A1 publication Critical patent/EP2358480A1/en
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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
    • B05B5/1675—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
    • 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
    • B05B15/555—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 discharged by cleaning nozzles
    • 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
    • B05B5/1633—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 the arrangement comprising several supply lines arranged in parallel, each comprising such an intermediate container
    • 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
    • B05B12/004—Arrangements for controlling delivery; Arrangements for controlling the spray area comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm
    • B05B12/006—Pressure or flow rate sensors
    • 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems

Definitions

  • the present invention relates to a station and a method for replenishing coating product at least one projector equipped with a reservoir and disposed on a mobile robot with respect to objects to be coated.
  • EP-A-0 274 322 describes a coating product projection installation on objects to be coated, such as motor vehicle bodies.
  • coating product is meant any product intended to be projected on an object to be coated, for example a primer, a paint, a varnish, etc.
  • a station is used to refill coating product a projector equipped with a tank and placed on a mobile robot compared to car bodies. This station comprises means for connection to coating product circuits. The connection means are formed by connector elements each mounted at the end of a respective coating product circuit. Each circuit coating product can alternately feed the tank fitted to the projector.
  • the replenishment station described by EP-A-0 274 322 further comprises a docking unit defining a reception area for the projector equipped with its tank. After a projection phase on the objects to be coated, to replenish the projector and its reservoir coating product, the robot comes to place the projector in the reception area. Then, the tank is connected to the coating product circuit to be transferred into the tank via a corresponding connecting means of the docking unit. After filling the tank, the robot starts again to move the projector next to the objects to be coated.
  • the replenishment station described by EP-A-0 274 322 comprises another connector element fulfilling the function of connecting member to a cleaning product line.
  • product cleaning means any suitable solvent to remove the coating product from the surfaces of the tank and the projector.
  • a replenishment lasts approximately 20 s for a 400 cm 3 tank, including 10 s for the docking of the headlamp and the connection of the tank to the docking unit.
  • a station and such a replenishment process can coat at most 50 vehicles / hour.
  • each coating product circuit must be composed of two separate strands to circulate the coating product regularly.
  • a "go" strand brings the coating product from a pump to the station connection means, while a “return” strand returns the coating material from the connecting means to the pump.
  • the costs of manufacturing, mounting and maintenance of such double-strand circuits are relatively high.
  • the present invention aims to overcome these disadvantages by providing a station for rapid replenishment, simple construction and limiting losses and sedimentation of coating products.
  • the subject of the invention is a station for replenishing coating product with at least one projector equipped with at least one reservoir and placed on a mobile robot with respect to objects to be coated.
  • the subject of the present invention is a method of restocking at least one projector equipped with at least one reservoir and placed on a mobile robot with respect to objects to be coated,
  • the figure 1 shows a station S comprising a docking unit 200 which defines a reception area 250 for a projector 1.
  • the projector 1 is carried by a robot 2, the envelope is symbolized in phantom.
  • the robot 2 is movable so as to move the projector 1 relative to the objects to be coated, which can be automobile bodies moved by a conveyor, as shown by the Figures 1 to 3 of EP-A-0 274 322 .
  • the projector 1 is equipped with a tank 10 which is described as "internal” because it is incorporated in a body 11 defining the external envelope of the projector 1.
  • the station S can proceed to replenish the tank 10 coating product.
  • the docking unit 200 comprises a frame 201 and a plate 210 mounted at the top of the frame 201.
  • the frame 201 and the plate 210 support a part of the components of the docking unit 200, as well as some other components of station S.
  • the station S further comprises five accumulators 110, 120, 130, 140 and 150 which are stationary relative to the station S.
  • the accumulators 110, 120, 130, 140 and 150 have identical structures, so that only the structure of the accumulator 120 will be detailed below.
  • the description given below of the accumulator 120 and its peripheral components can be directly transposed to the accumulators 110, 130, 140 and 150, with the exception of the differences explicitly mentioned concerning the accumulator 150.
  • the accumulators 110, 120, 130 and 140 are arranged in the lower part of the frame 201, while the accumulator 150 is mounted near the plate 210.
  • Each accumulator 110, 120, 130, 140 and 150 has a substantially tubular shaped body. circular base.
  • the accumulators 110, 120, 130 and 140 extend vertically and juxtaposed, while the accumulator 150 extends horizontally.
  • the accumulators 110, 120, 130 and 140 thus form a set of accumulators 100.
  • Each accumulator 110, 120, 130, 140 or 150 is made of an electrically conductive material, for example made of metal, and brought to the electrical potential of the earth. by means of conducting wires or fastening screws (not shown), so as to ensure the safety of the operators.
  • the tubular body of the accumulator 120 has a volume V 120 which is delimited at these two ends by respective flanges 127 and 128.
  • the accumulator 120 is connected to a circuit 20, symbolized in phantom with the figure 4 , which contains a coating product, in this case a liquid paint of specific color.
  • the accumulator 120 is connected to the circuit 20 via a connection 121 on which is fixed the tip of the circuit 20.
  • the connection 121 forms a connection means of the accumulator 120 to the circuit 20.
  • connection refers to a fluid communication, that is to say to a link that allows a fluid, gaseous or liquid, to flow. or to move between two or more points or parts.
  • a link can be direct or indirect, that is to say realized by a pipe, a pipe, a pipe and so on.
  • nouns derived from these verbs, such as “connection” and “connection” relate to such fluid communication.
  • each accumulator 110, 120, 130 and 140 is connected to a respective painting circuit, such as the circuit 20, not shown, via respective connectors visible to the figure 2 but not referenced.
  • each accumulator 110, 120, 130 or 140 may be dedicated to a specific shade of paint.
  • the circuit 20 has the first function of supplying the accumulator 120 with paint. Such a circuit is usually designated by the English word " circulating".
  • the circuit 20 may be formed by a flexible pipe, in which the paint is subjected to a pressure of about 6 bar by a pump not shown.
  • the circuit 20 belongs to the paint spray installation in the same way as the station S.
  • connection means which comprise a coupling 122, a pipe 123 and a coupling 222.1.
  • the coupling 122 is fixed in the flange 127.
  • the coupling 222.1 is fixed in a base 220 belonging to the docking unit 200.
  • the pipe 123 extends between the connectors 122 and 222.1.
  • the base 220 is disposed on the plate 210 near the receiving zone 250. As shown in FIG. figure 3 , the base 220 includes several head valves juxtaposed, including the head valves 221, 222, 223, 224 and 225 which respectively correspond to the accumulators 110, 120, 130, 140 and 150. Each valve 221, 222, 223, 224 or 225 has a conventional structure and it is maneuvered by unrepresented pneumatic members. Alternatively, each valve 221, 222, 223, 224 or 225 may be configured to be operated by the projector 1, either mechanically or by means of a pneumatic control, which makes it possible to open the valve 221, 222, 223, 224 or 225 respectively after connection of the projector 1.
  • the head valve 222 controls, i.e., allows or prevents, product flow in an outlet channel 232.
  • the outlet channel 232 is defined in the base 220 where it forms the end downstream of the docking unit 200, thus the station S.
  • Each head valve 221, 222, 223, 224 or 225 forms a connection member of the docking unit to the tank 10.
  • the valve head 222 or equivalent connects an output channel 232 or equivalent of the base 220 to the tank 10 via the projector 1.
  • the projector 1 To replenish its tank 10, the projector 1 must be connected to an output channel 232 or equivalent.
  • the selected output channel is the one that matches the required paint tint.
  • downstream and upstream are used by reference to the flow direction of the fluid, coating product, compressed air or cleaning product.
  • the accumulator 150 is connected to several circuits 70 to 79 where different coating products circulate, in this case paints of different hues.
  • the paint circuits 70 to 79 are represented in phantom lines to figures 1 and 2 .
  • the accumulator 150 is connected to the circuits 70 to 79, in particular via a block 152 for changing the coating product.
  • Block 152 has a conventional structure and functions.
  • block 152 is composed of a juxtaposition of several elementary modules 160 to 169, at the rate of one elementary module 160 to 169 per circuit 70 to 79.
  • On each elementary module 160 to 169 is fixed a respective connection 170 to 179.
  • the ends of the paint circuits 70 to 79 are respectively fixed in the connections 170 to 179.
  • the means for connecting the accumulator 150 to the paint circuits 70 to 79 comprise the block 152 and the connections 170 to 179.
  • connection means also comprise a connection 151 fixed in a flange 157 mounted at one end of the accumulator 150.
  • the connection 151 is connected to the block 152 via a pipe 154 which is shown in phantom at the left. figure 2 .
  • the accumulator 150 Since the accumulator 150 is connected to several paint circuits 70 to 79, it is described as "versatile". In other words, the accumulator 150 is not dedicated to a specific paint, but to several different paints having different hues. The accumulator 150 is dedicated to the less frequently used paints, while each accumulator 110, 120, 130 or 140 is dedicated to a hue paint more often used. In other words, the accumulator 150 is dedicated to so-called "rare” shades, while each accumulator 110, 120, 130 or 140 is dedicated to a so-called "main” shade.
  • the docking unit 200 comprises a device 251 for rinsing the outer surfaces of the projector 1.
  • the device 251 known per se, is connected to a not shown cleaning product line, via a connecting member or connection 252 visible to the figure 1 .
  • the receiving zone 250 includes the upper rectangular opening of the frame 201, through which a portion of the projector 1 can pass to enter the device 251.
  • the device 251 is connected to a not shown compressed air line, so as to dry the previously injected cleaning product.
  • the device 251 is mounted on a carriage 253 which is movable in translation relative to the frame 201, along the double-arrow X 251 , by means of a not shown actuator.
  • the device 251 is thus movable between positions corresponding to the alignment of the body 11 of the projector 1 on each head valve 221, 222, 223, 224 or 225 respectively.
  • the docking unit 200 comprises a jack 215 configured to move the plate 210, thus the base 220, in translation along the double-arrow X 220 , so as to connect and disconnect the base 220 and the projector 1.
  • the docking unit 200 further comprises a plate 204 secured to the docking unit 200.
  • the plate 204 When connecting the projector 1, the plate 204 is located opposite the distal end of the projector 1.
  • the plate 204 is fixed on the carriage 253, so that it is also movable in translation relative to the frame 201 according to the double-arrow X 251 .
  • the adjective "distal” designates an element of the projector 1 relatively far from the robot 2, while the adjective “proximal” designates an element that is closer to it.
  • the plate 204 has a through opening 206.
  • the plate 204 has a lug 207 on each of its faces, so as to guide the projector 1 and the base 220 to make a sealed contact.
  • the plate 204 serves as an interface between the projector 1 and the docking unit 200, more precisely each head valve 221, 222, 223, 224 or 225.
  • the cylinder 215 moves the plate 210 until the contact between the base 220 and the plate 204.
  • the plate 204 and the head valve 222 are placed in sealing contact by a relative movement, which can be carried out in translation by the robot 2 and / or by the cylinder 215.
  • the output channel 232 is connected to the port 206.
  • the robot 2 places the projector 1 near the plate 204.
  • a valve 12 is incorporated in the projector 1 to control the replenishment of the reservoir 10.
  • the plate 204 and the distal portion 13 of the valve 12 are brought into contact with each other. sealed by a relative movement, which can be carried out in translation by the robot 2 and / or by the cylinder 215.
  • Each accumulator 120 or equivalent comprises a piston 120.2 and a thrust chamber 120.1.
  • the piston 120.2 is movable in translation in the accumulator 120.
  • the thrust chamber 120.1 is delimited by the piston 120.2 and by the walls of the accumulator 120.
  • the paint is contained in the chamber, referenced V 120 , which is delimited by the piston 120.2 and which is located above the thrust chamber 120.1.
  • the chamber of thrust 120.1 can be placed above the chamber containing the paint.
  • the thrust chamber 120.1 is intended to be pressurized to exert a pressing force F 120 on the piston 120.2, so as to expel the paint from the accumulator 120.
  • a thrust fluid in this case compressed air
  • the air line 25 is connected to the flange 127 by the intermediate of a connector 125, then to the flange 128 via a conduit and a fitting not shown.
  • the thrust fluid flows from the pipe 25, in the connection 125, then into the flange 127, before being introduced into the thrust chamber 120.1, via the pipe and the connection not shown.
  • a type connection 125 can be mounted directly on the flange 128.
  • An unillustrated pneumatic distributor such as a three-way valve, controls the inflow of compressed air into the thrust chamber 120.1, via the air line 25.
  • This pneumatic distributor also controls the escape of the compressed air outside the thrust chamber 120.1, preferably in the atmosphere, to cancel the thrust force F 120 , which allows to fill the accumulator 120 in paint.
  • Each accumulator 110, 120, 130, 140 or 150 operates reversibly, that is to say it can transfer paint either to the docking unit 200 via the pipe 123 and the coupling 122, or to the circuit 20 through the connector 121.
  • the selection of the direction of the paint delivered by the accumulator 120 is by means of a selection valve 129.1 housed in the flange 127.
  • the selection valve 129.1 can alternately and simultaneously close the connections 121 and 122.
  • the valve 129.1 thus controls the arrival of paint in the accumulator 120 from the paint circuit 20, as well as the exit of the paint from the accumulator 120 towards the pipe 123.
  • the pipes 123 and 153 which connect the base 220 respectively to the accumulators 110, 120, 130, 140 and 150, have relatively short lengths, which makes it possible to minimize the pressure losses in the flow of the paint, therefore of limit the duration of replenishment of the tank 10 by the accumulator 120 or equivalent.
  • the station S operates according to a replenishment method according to the invention.
  • This method comprises a step of performing, in masked time, the filling of one or more of the accumulators 110, 120, 130, 140 and 150, according to the paint colors selected for the next cycle (s) ( s) paint projection.
  • the accumulator 120 is filled with the paint which is in the circuit 20.
  • the expression "in masked time” indicates that the step is carried out during a paint projection cycle, that is to say say without slowing down the rate of the paint installation.
  • the pneumatic distributor is piloted at the exhaust, so as to establish in the accumulator 120 a pressure lower than the pressure in the pipe 20.
  • the thrust force F 120 is zero and the paint may enter the accumulator 120 by pushing the piston 120.2.
  • the pressure in the accumulator 120 is the same as the pressure in the circuit 20, typically 6 bars.
  • the selector valve 129.1 is piloted to "open" the connector 121, so that the paint flows from the line 20 into the accumulator 120.
  • the filling of the accumulator 120 can be performed in masked time, during the phase of projection of paint by the projector 1. When coating a body, the projection phase lasts about 1 min.
  • the volume V 120 of the accumulator 120 or equivalent must be greater than or equal to the volume V 10 .
  • the volume V 120 of the accumulator 120 For example, for a volume to be filled V 10 of 400 cm 3 , it is possible to use an accumulator 120 whose volume V 120 is 600 cm 3 , or even 1000 cm 3 .
  • connection 121 is closed by controlling the selector valve 129.1 so as to interrupt the communication of fluid between the circuit 20 and the accumulator 120 or equivalent.
  • the accumulator 120 is then isolated from the circuit 20.
  • a pneumatic distributor supplies the thrust chamber 120.1 via the coupling 125, so as to increase the pressure in the accumulator 120 to a pressure substantially greater than the pressure of the circuit 20.
  • the thrust chamber 120.1 of the accumulator 120 is at a pressure of approximately 15 bar, the accumulator 120 is ready to deliver the paint it contains to the docking unit 200, to replenish the tank 10.
  • the coupling 125 and the thrust chamber 120.1 provide means for pressurizing the volume V 120 of the accumulator 120 or equivalent, at a pressure (15 bars) strictly greater than the pressure prevailing in the circuit 20 (6). bar).
  • the connection of the projector 1 and the base 220 is made, by moving the robot 2 and the plate 210 towards 204. More precisely, the headlamp 1 and the base 220 are brought together until the contact between the plate 204, on the one hand, and the front part 13 of the valve 12 and the head valve 222, 'somewhere else.
  • the volume V 10 is brought to a low or zero relative pressure, for example at atmospheric pressure. Then "fitting" 122 is opened to dispense the paint in the pipe 123 to the tank 10 via the docking unit 200.
  • the projector 1 and the base 220 are disconnected and the robot releases the projector 1 out of the reception area 250.
  • the projector 1 thus leaves the station S to join the paint projection space.
  • the tank 10 fitted to the projector 1 is partially or totally empty. It is then necessary to refill the reservoir 10 in paint, filling it as described above.
  • the robot 2 places the projector 1 in the receiving zone 250.
  • the device 251 is positioned at the head valve 222 corresponding to the accumulator 120 or equivalent which is intended to carry out the transfer of paint according to the selected shade.
  • the projector 1 When the projector 1 is in the device 251, it controls the emptying of any paint residue out of the tank 10. This paint residue is collected by the device 251 and then routed to a waste treatment center not shown.
  • the inside of the tank 10 is rinsed by means of a solvent line, not shown, which can be connected to the plate 204.
  • the device 251 cleans, with solvent brought via the connection 252, the outer surfaces of the part of the projector 1 which carries the projection member and which may have been soiled. .
  • the head valve 222 and the connection 121 are "opened", by the selector valve 129.1, so that the paint flows from the accumulator 120 into the reservoir 10 via the pipe 123, which transfers the paint from the accumulator 120 to the docking unit 200 and the tank 10.
  • the flow rate of this transfer from the volume V 120 to the volume V 10 depends on the pressure prevailing in the volume V 120 or equivalent.
  • the filling rate of the volume V 10 can reach 6000 cm 3 / min during the entire refueling phase of the reservoir 10.
  • total duration of replenishment means the time between the stop and the resumption of the projection of paint on the objects to be coated.
  • a station and a method according to the present invention therefore make it possible to achieve a replenishment of substantially shorter duration than the stations and methods of the prior art.
  • the duration of change of hue is thus also shortened. Therefore, a station and method according to the present invention can achieve a projection rate of about 60 to 70 vehicles / hour.
  • the transfer pressure may be between 10 bar and 30 bar and the transfer rate may be between 4000 cm 3 / min and 6000 cm 3 / min.
  • the mentioned pressures are relative and static pressures.
  • the station S further comprises at least one pressure sensor 208 schematized at the figure 5 .
  • This supervision unit defines highly variable hue sequences, so that a hue may not be selected for a relatively long time, during which the paint stagnates in one or more of the accumulators 110, 120, 130, 140 or 150.
  • a process according to the invention also comprises a step during which the stagnant paint in the accumulator 110, 120, 130, 140 or 150 is forced back into the respective paint circuit, after a time that is determined according to the characteristics of the painting.
  • the accumulator 120 or equivalent is connected to the circuit 20 by opening the connection 121 by means of the selection valve 129.1.
  • the volume V 120 is at a higher pressure, typically 15 bar, at the pressure in the circuit 20, typically 6 bar, the paint flows from the accumulator 120 to the circuit 20, until complete emptying of the volume V 120 .
  • This backflow thus limits the stagnation of paint in the accumulator 120 or equivalent.
  • a station according to the invention may comprise, for each accumulator, a specific connection and discharge pipe whose supply is controlled by valves.
  • a station according to the invention may comprise, for each accumulator, a circuit and a so-called “purge” valve, in order to recover the solvent circulated in the accumulator during the cleaning phase.
  • a replenishing station according to the invention can be connected to coating product circuits each composed of a single strand for the "out" and “return” circulation of the coating product. Nevertheless, a replenishing station according to the invention can be connected to double-strand coating product circuits, a "go" strand and a “return” strand, which generally exist in a conventional paint installation.
  • a replenishing station according to the invention does not require coating product circuits with increased dimensions, because they are brought to usual pressures, of the order of 6 bars.
  • a station and method in accordance with the present invention improves the handling of paints of different hues, since "rare” hues are supported by the multi-purpose accumulator and because "main” shades are taken care of by dedicated accumulators. This improved management of paints of different colors also makes it possible to reduce the losses of coating product and cleaning product.
  • a replenishment station according to the invention may comprise as many dedicated accumulators as "main" shades.
  • a replenishment station according to the invention may comprise between one and thirty dedicated accumulator (s), preferably sixteen.
  • the means for pressurizing the volume of each accumulator comprises a thrust chamber formed directly above the coating product.
  • a thrust chamber formed directly above the coating product.
  • Such an accumulator is devoid of piston and the compressed air then exerts its pressure directly on the coating product that it expels out of the accumulator.
  • Each accumulator then functions as a pressure pot.

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Spray Control Apparatus (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Coating Apparatus (AREA)

Description

La présente invention concerne une station et un procédé pour réapprovisionner en produit de revêtement au moins un projecteur équipé d'un réservoir et disposé sur un robot mobile par rapport à des objets à revêtir.The present invention relates to a station and a method for replenishing coating product at least one projector equipped with a reservoir and disposed on a mobile robot with respect to objects to be coated.

EP-A-0 274 322 décrit une installation de projection de produit de revêtement sur des objets à revêtir, telle que des carrosseries de véhicules automobiles. Par « produit de revêtement » on entend tout produit destiné à être projeté sur un objet à revêtir, par exemple un apprêt, une peinture, un vernis etc. Une station est utilisée pour réapprovisionner en produit de revêtement un projecteur équipé d'un réservoir et disposé sur un robot mobile par rapport à des carrosseries automobiles. Cette station comporte des moyens de raccordement à des circuits de produit de revêtement. Les moyens de raccordement sont formés par des éléments de connecteurs montés chacun à l'extrémité d'un circuit de produit de revêtement respectif. Chaque circuit de produit de revêtement permet d'alimenter alternativement le réservoir équipant le projecteur. EP-A-0 274 322 describes a coating product projection installation on objects to be coated, such as motor vehicle bodies. By "coating product" is meant any product intended to be projected on an object to be coated, for example a primer, a paint, a varnish, etc. A station is used to refill coating product a projector equipped with a tank and placed on a mobile robot compared to car bodies. This station comprises means for connection to coating product circuits. The connection means are formed by connector elements each mounted at the end of a respective coating product circuit. Each circuit coating product can alternately feed the tank fitted to the projector.

La station de réapprovisionnement décrite par EP-A-0 274 322 comporte en outre une unité d'accostage définissant une zone de réception pour le projecteur équipé de son réservoir. Après une phase de projection sur les objets à revêtir, pour réapprovisionner le projecteur et son réservoir en produit de revêtement, le robot vient placer le projecteur dans la zone de réception. Puis, le réservoir est raccordé au circuit de produit de revêtement à transférer dans le réservoir, via un moyen de raccordement correspondant de l'unité d'accostage. Après remplissage du réservoir, le robot recommence à déplacer le projecteur en regard des objets à revêtir.The replenishment station described by EP-A-0 274 322 further comprises a docking unit defining a reception area for the projector equipped with its tank. After a projection phase on the objects to be coated, to replenish the projector and its reservoir coating product, the robot comes to place the projector in the reception area. Then, the tank is connected to the coating product circuit to be transferred into the tank via a corresponding connecting means of the docking unit. After filling the tank, the robot starts again to move the projector next to the objects to be coated.

Quand il faut effectuer un changement de produit de revêtement, par exemple un changement de teinte de peinture, il faut, préalablement au remplissage, rincer le projecteur et son réservoir au moyen du produit de nettoyage. Dans ce but, la station de réapprovisionnement décrite par EP-A-0 274 322 comporte un autre élément de connecteur remplissant la fonction d'organe de raccordement à une conduite de produit de nettoyage. Par «produit de nettoyage » on entend tout solvant adapté pour ôter le produit de revêtement des surfaces du réservoir et du projecteur.When it is necessary to make a change of coating product, for example a change of color of paint, it is necessary, before filling, to rinse the projector and its reservoir with the cleaning product. For this purpose, the replenishment station described by EP-A-0 274 322 comprises another connector element fulfilling the function of connecting member to a cleaning product line. By «product cleaning means any suitable solvent to remove the coating product from the surfaces of the tank and the projector.

Les stations et procédés de l'art antérieur réalisent des changements de produit de revêtement relativement longs, car la pression dans les circuits conventionnels est généralement limitée à 6 bars, ce qui induit un débit de remplissage du réservoir limité à 3000 cm3/min. Ainsi, un réapprovisionnement dure environ 20 s pour un réservoir de 400 cm3, en incluant 10 s pour l'accostage du projecteur et le raccordement du réservoir à l'unité d'accostage. Dans le cas d'une installation pour peindre des carrosseries de véhicules automobiles, une telle station et un tel procédé de réapprovisionnement permettent de revêtir au plus 50 véhicules/heure.The prior art stations and processes achieve relatively long coating product changes because the pressure in conventional circuits is generally limited to 6 bar, which induces a tank fill rate of 3000 cm 3 / min. Thus, a replenishment lasts approximately 20 s for a 400 cm 3 tank, including 10 s for the docking of the headlamp and the connection of the tank to the docking unit. In the case of an installation for painting motor vehicle bodies, such a station and such a replenishment process can coat at most 50 vehicles / hour.

Par ailleurs, pour limiter la sédimentation d'un produit de revêtement, en particulier une peinture, lorsqu'il stagne dans un circuit d'une installation de peinture telle que décrite par WO-A-01 015 814 , chaque circuit de produit de revêtement doit être composé de deux brins distincts pour faire circuler régulièrement le produit de revêtement. Un brin « aller » amène le produit de revêtement depuis une pompe jusqu'au moyen de raccordement de la station, tandis qu'un brin « retour » ramène le produit de revêtement depuis le moyen de raccordement jusqu'à la pompe. Or, les coûts de fabrication, de montage et de maintenance de tels circuits à double brin sont relativement élevés.Moreover, to limit the sedimentation of a coating product, in particular a paint, when it stagnates in a circuit of a paint installation as described by WO-A-01 015 814 each coating product circuit must be composed of two separate strands to circulate the coating product regularly. A "go" strand brings the coating product from a pump to the station connection means, while a "return" strand returns the coating material from the connecting means to the pump. However, the costs of manufacturing, mounting and maintenance of such double-strand circuits are relatively high.

La présente invention vise notamment à remédier à ces inconvénients, en proposant une station permettant un réapprovisionnement rapide, de construction simple et limitant les pertes et la sédimentation des produits de revêtement.The present invention aims to overcome these disadvantages by providing a station for rapid replenishment, simple construction and limiting losses and sedimentation of coating products.

A cet effet, l'invention a pour objet une station pour réapprovisionner en produit de revêtement au moins un projecteur équipé d'au moins un réservoir et disposé sur un robot mobile par rapport à des objets à revêtir.For this purpose, the subject of the invention is a station for replenishing coating product with at least one projector equipped with at least one reservoir and placed on a mobile robot with respect to objects to be coated.

La station comporte :

  • des moyens de raccordement à au moins un circuit de produit de revêtement ;
  • une unité d'accostage définissant une zone de réception pour au moins un projecteur ;
La station comporte en outre :
  • au moins un accumulateur dont le volume est supérieur ou égal au volume du réservoir, le ou chaque accumulateur étant adapté pour être relié à au moins un circuit respectif de produit de revêtement par l'intermédiaire des moyens de raccordement ;
  • des moyens de mise sous pression du volume de l'accumulateur ;
  • des moyens de connexion du ou de chaque accumulateur à l'unité d'accostage ; et
  • un organe de connexion de l'unité d'accostage au réservoir.
The station comprises:
  • connecting means to at least one coating product circuit;
  • a docking unit defining a reception area for at least one projector;
The station also includes:
  • at least one accumulator whose volume is greater than or equal to the volume of the reservoir, the or each accumulator being adapted to be connected to at least one respective coating product circuit via the connecting means;
  • means for pressurizing the volume of the accumulator;
  • means for connecting the or each accumulator to the docking unit; and
  • a connection member of the docking unit to the tank.

Selon d'autres caractéristiques avantageuses mais facultatives de l'invention, prises isolément ou selon toute combinaison techniquement admissible :

  • la station comporte un accumulateur polyvalent relié à plusieurs circuits par l'intermédiaire de moyens de raccordement qui comprennent un bloc de changement de produit de revêtement, l'accumulateur polyvalent étant relié, d'une part, au bloc de changement de produit de revêtement et, d'autre part, à l'unité d'accostage ;
  • la station comporte plusieurs accumulateurs reliés chacun à un circuit respectif par l'intermédiaire de moyens de raccordement distincts, l'organe de connexion comportant, pour chaque accumulateur, une vanne de tête configurée pour la connexion avec le projecteur ;
  • la station comporte en outre au moins un organe de raccordement à au moins une conduite de produit de nettoyage et ce que l'unité d'accostage comprend en outre un dispositif pour rincer des surfaces extérieures du projecteur, le dispositif étant relié à la conduite de produit de nettoyage par l'intermédiaire de l'organe de raccordement, le dispositif étant mobile entre plusieurs positions correspondant aux vannes de tête respectives ;
  • l'accumulateur polyvalent est dédié aux produits de revêtements les moins souvent utilisés, tandis que chaque autre accumulateur est dédié à un produit de revêtement plus souvent utilisé ;
  • le ou chaque accumulateur fonctionne de façon réversible, si bien qu'il peut transférer du produit de revêtement soit vers l'unité d'accostage, soit vers les moyens de raccordement au circuit correspondant ;
  • les moyens de mise sous pression comprennent un raccord et une chambre de poussée respective appartenant au ou à chaque accumulateur, la chambre de poussée étant destinée à être mise sous pression de façon à expulser le produit de revêtement hors de l'accumulateur correspondant, le raccord étant adapté pour la connexion de la chambre de poussée à une conduite d'air comprimé ;
  • les moyens de mise sous pression comprennent un piston respectif appartenant au ou à chaque accumulateur, le piston délimitant la chambre de poussée et étant mobile en translation dans l'accumulateur correspondant ;
  • la station comporte en outre au moins un capteur de pression pour réguler la pression régnant dans le ou chaque accumulateur ainsi que dans les moyens de connexion.
According to other advantageous but optional features of the invention, taken alone or in any technically permissible combination:
  • the station comprises a multipurpose accumulator connected to several circuits via connection means which comprise a coating product change block, the polyvalent accumulator being connected, on the one hand, to the coating product change block and on the other hand, to the docking unit;
  • the station comprises several accumulators each connected to a respective circuit via separate connection means, the connection member comprising, for each accumulator, a head valve configured for connection with the projector;
  • the station further comprises at least one connecting member to at least one cleaning product line and that the docking unit further comprises a device for rinsing external surfaces of the headlamp, the device being connected to the line of cleaning product via the connecting member, the device being movable between several positions corresponding to the respective head valves;
  • the multipurpose accumulator is dedicated to the less frequently used coating products, while each other accumulator is dedicated to a coating product more often used;
  • the or each accumulator operates in a reversible manner, so that it can transfer coating product either to the docking unit or to the connection means to the corresponding circuit;
  • the pressurizing means comprise a connection and a respective thrust chamber belonging to the or each accumulator, the thrust chamber being intended to be pressurized so as to expelling the coating material from the corresponding accumulator, the fitting being adapted for connecting the thrust chamber to a compressed air line;
  • the pressurizing means comprise a respective piston belonging to the or each accumulator, the piston delimiting the thrust chamber and being movable in translation in the corresponding accumulator;
  • the station further comprises at least one pressure sensor for regulating the pressure in the or each accumulator and in the connection means.

Par ailleurs, la présente invention a pour objet un procédé, pour réapprovisionner en produit de revêtement au moins un projecteur équipé d'au moins un réservoir et disposé sur un robot mobile par rapport à des objets à revêtir,Furthermore, the subject of the present invention is a method of restocking at least one projector equipped with at least one reservoir and placed on a mobile robot with respect to objects to be coated,

Le procédé met en oeuvre une station comportant :

  • une unité d'accostage définissant une zone de réception pour au moins un projecteur ;
  • au moins un accumulateur dont le volume est supérieur ou égal au volume du réservoir, le ou chaque accumulateur étant adapté pour être relié à au moins un circuit respectif de produit de revêtement par l'intermédiaire de moyens de raccordement ;
  • des moyens de connexion du ou de chaque accumulateur à l'unité d'accostage ; et
  • un organe de connexion de l'unité d'accostage au réservoir ;
The method implements a station comprising:
  • a docking unit defining a reception area for at least one projector;
  • at least one accumulator whose volume is greater than or equal to the volume of the reservoir, the or each accumulator being adapted to be connected to at least one respective circuit of coating product via connection means;
  • means for connecting the or each accumulator to the docking unit; and
  • a connection member of the docking unit to the tank;

Le procédé comprend les étapes suivantes :

  1. a) effectuer le remplissage du ou de chaque accumulateur en produit de revêtement par l'intermédiaire des moyens de raccordement ;
  2. b) mettre sous pression le volume de l'accumulateur ;
  3. c) placer le projecteur dans la zone de réception ;
  4. d) raccorder le réservoir à l'unité d'accostage ;
  5. e) transférer du produit de revêtement de l'un des accumulateurs vers l'unité d'accostage de sorte à remplir le réservoir.
The method comprises the following steps:
  1. a) filling the or each accumulator with coating material via the connecting means;
  2. b) pressurizing the volume of the accumulator;
  3. c) place the projector in the reception area;
  4. d) connect the tank to the docking unit;
  5. e) transferring coating material from one of the accumulators to the docking unit so as to fill the tank.

Selon d'autres caractéristiques avantageuses mais facultatives de l'invention, prises isolément ou selon toute combinaison techniquement admissible :

  • l'étape e) de remplissage consiste à :
    • f) isoler l'accumulateur du circuit en obturant les moyens de raccordement ;
    • g) réaliser le transfert à un débit de transfert compris entre 4000 cm3/min et 6000 cm3/min, l'accumulateur étant mis sous une pression de transfert supérieure à la pression de remplissage régnant dans le circuit, la pression de transfert étant comprise entre 10 bars et 30 bars, de préférence égale à 15 bars ;
  • le procédé comprend en outre les étapes suivantes:
    • h) avant l'étape de placement b), positionner un dispositif pour nettoyer les surfaces extérieures du projecteur au niveau d'une vanne de tête correspondant à l'accumulateur destiné à réaliser l'étape de transfert d) ;
    • i) essentiellement au cours des étapes de raccordement c) et de transfert d), rincer les surfaces extérieures du projecteur au moyen du dispositif ;
  • le procédé comprend en outre les étapes suivantes :
    • j) relier l'accumulateur au circuit respectif en ouvrant les moyens de raccordement ;
    • k) refouler dans le circuit correspondant le produit de revêtement contenu dans un accumulateur, après une durée déterminée de sorte à limiter la sédimentation du produit de revêtement.
According to other advantageous but optional features of the invention, taken alone or in any technically permissible combination:
  • the filling step e) consists of:
    • f) isolating the accumulator from the circuit by closing the connection means;
    • g) perform the transfer at a transfer rate between 4000 cm 3 / min and 6000 cm 3 / min, the accumulator being put under a transfer pressure greater than the filling pressure prevailing in the circuit, the transfer pressure being between 10 bar and 30 bar, preferably equal to 15 bar;
  • the method further comprises the steps of:
    • h) prior to placement step b), positioning a device for cleaning the exterior surfaces of the projector at a head valve corresponding to the accumulator for performing the transfer step d);
    • i) essentially during connection steps c) and transfer d), flush the outer surfaces of the projector by means of the device;
  • the method further comprises the steps of:
    • j) connecting the accumulator to the respective circuit by opening the connection means;
    • k) driving back into the corresponding circuit the coating product contained in an accumulator, after a determined duration so as to limit the sedimentation of the coating product.

L'invention sera bien comprise et ses avantages ressortiront aussi à la lumière de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif et faite en référence aux dessins annexés, dans lesquels :

  • la figure 1 est une vue en perspective d'une station conforme à l'invention ;
  • la figure 2 est une vue en perspective, selon un angle différent, de la station de la figure 1 ;
  • la figure 3 est une vue à plus grande échelle du détail III à figure 2 ;
  • la figure 4 est une coupe suivant le plan IV à la figure 2 ;
  • la figure 5 est une vue à plus grande échelle du détail V à la figure 4.
The invention will be well understood and its advantages will also emerge in the light of the description which follows, given solely by way of nonlimiting example and with reference to the appended drawings, in which:
  • the figure 1 is a perspective view of a station according to the invention;
  • the figure 2 is a perspective view, from a different angle, of the station of the figure 1 ;
  • the figure 3 is a larger-scale view of detail III to figure 2 ;
  • the figure 4 is a section along plane IV at the figure 2 ;
  • the figure 5 is a larger-scale view of detail V to the figure 4 .

La figure 1 montre une station S comportant une unité d'accostage 200 qui définit une zone de réception 250 pour un projecteur 1. Le projecteur 1 est porté par un robot 2, dont l'enveloppe est symbolisée en traits mixtes. Le robot 2 est mobile de façon à déplacer le projecteur 1 par rapport aux objets à revêtir, lesquels peuvent être des carrosseries automobiles déplacées par un convoyeur, comme le montrent les figures 1 à 3 de EP-A-0 274 322 .The figure 1 shows a station S comprising a docking unit 200 which defines a reception area 250 for a projector 1. The projector 1 is carried by a robot 2, the envelope is symbolized in phantom. The robot 2 is movable so as to move the projector 1 relative to the objects to be coated, which can be automobile bodies moved by a conveyor, as shown by the Figures 1 to 3 of EP-A-0 274 322 .

Le projecteur 1 est équipé d'un réservoir 10 qui est qualifié « d'interne », car il est incorporé à un corps 11 définissant l'enveloppe externe du projecteur 1. Quand le projecteur 1 est dans la zone de réception 250, la station S peut procéder au réapprovisionnement du réservoir 10 en produit de revêtement.The projector 1 is equipped with a tank 10 which is described as "internal" because it is incorporated in a body 11 defining the external envelope of the projector 1. When the projector 1 is in the reception zone 250, the station S can proceed to replenish the tank 10 coating product.

L'unité d'accostage 200 comprend un châssis 201 et un plateau 210 monté en partie haute du châssis 201. Le châssis 201 et le plateau 210 supportent une partie des composants de l'unité d'accostage 200, ainsi que certains autres composants de la station S.The docking unit 200 comprises a frame 201 and a plate 210 mounted at the top of the frame 201. The frame 201 and the plate 210 support a part of the components of the docking unit 200, as well as some other components of station S.

La station S comporte en outre cinq accumulateurs 110, 120, 130, 140 et 150 qui sont fixes par rapport à la station S. Les accumulateurs 110, 120, 130, 140 et 150 ont des structures identiques, si bien que seule la structure de l'accumulateur 120 sera détaillée ci-après. La description donnée ci-après de l'accumulateur 120 et de ses composants périphériques peut être directement transposée aux accumulateurs 110, 130, 140 et 150, à l'exception des différences explicitement mentionnées au sujet de l'accumulateur 150.The station S further comprises five accumulators 110, 120, 130, 140 and 150 which are stationary relative to the station S. The accumulators 110, 120, 130, 140 and 150 have identical structures, so that only the structure of the accumulator 120 will be detailed below. The description given below of the accumulator 120 and its peripheral components can be directly transposed to the accumulators 110, 130, 140 and 150, with the exception of the differences explicitly mentioned concerning the accumulator 150.

Les accumulateurs 110, 120, 130 et 140 sont disposés dans la partie basse du châssis 201, tandis que l'accumulateur 150 est monté près du plateau 210. Chaque accumulateur 110, 120, 130, 140 et 150 a un corps de forme essentiellement tubulaire à base circulaire. Les accumulateurs 110, 120, 130 et 140 s'étendent verticalement et de façon juxtaposée, tandis que l'accumulateur 150 s'étend horizontalement. Les accumulateurs 110, 120, 130 et 140 forment ainsi un ensemble d'accumulateurs 100. Chaque accumulateur 110, 120, 130, 140 ou 150 est réalisé en un matériau électriquement conducteur, par exemple en métal, et porté au potentiel électrique de la terre au moyen de fils conducteurs ou de vis de fixation non représentés, de façon à assurer la sécurité des opérateurs.The accumulators 110, 120, 130 and 140 are arranged in the lower part of the frame 201, while the accumulator 150 is mounted near the plate 210. Each accumulator 110, 120, 130, 140 and 150 has a substantially tubular shaped body. circular base. The accumulators 110, 120, 130 and 140 extend vertically and juxtaposed, while the accumulator 150 extends horizontally. The accumulators 110, 120, 130 and 140 thus form a set of accumulators 100. Each accumulator 110, 120, 130, 140 or 150 is made of an electrically conductive material, for example made of metal, and brought to the electrical potential of the earth. by means of conducting wires or fastening screws (not shown), so as to ensure the safety of the operators.

Comme le montre la figure 4, le corps tubulaire de l'accumulateur 120 a un volume V120 qui est délimité à ces deux extrémités par des flasques 127 et 128 respectifs. L'accumulateur 120 est relié à un circuit 20, symbolisé en traits mixtes à la figure 4, qui contient un produit de revêtement, en l'occurrence une peinture liquide de teinte déterminée. L'accumulateur 120 est relié au circuit 20 par l'intermédiaire d'un raccord 121 sur lequel est fixé l'embout du circuit 20. Le raccord 121 forme un moyen de raccordement de l'accumulateur 120 au circuit 20.As shown in figure 4 , the tubular body of the accumulator 120 has a volume V 120 which is delimited at these two ends by respective flanges 127 and 128. The accumulator 120 is connected to a circuit 20, symbolized in phantom with the figure 4 , which contains a coating product, in this case a liquid paint of specific color. The accumulator 120 is connected to the circuit 20 via a connection 121 on which is fixed the tip of the circuit 20. The connection 121 forms a connection means of the accumulator 120 to the circuit 20.

Dans la présente demande, les verbes « relier », « connecter » et « raccorder » se rapportent à une communication de fluide, c'est-à-dire à un lien qui permet à un fluide, gazeux ou liquide, de s'écouler ou de circuler entre deux ou plusieurs points ou pièces. Un tel lien peut être direct ou indirect, c'est-à-dire réalisé par un conduit, un tuyau, une canalisation etc. De même, les noms dérivés de ces verbes, tels que « connexion » et « raccordement » concernent une telle communication de fluide.In the present application, the verbs "connect", "connect" and "connect" refer to a fluid communication, that is to say to a link that allows a fluid, gaseous or liquid, to flow. or to move between two or more points or parts. Such a link can be direct or indirect, that is to say realized by a pipe, a pipe, a pipe and so on. Similarly, the nouns derived from these verbs, such as "connection" and "connection" relate to such fluid communication.

A l'instar de l'accumulateur 120, chaque accumulateur 110, 120, 130 et 140 est relié à un circuit de peinture respectif, tel que le circuit 20, non représenté, par l'intermédiaire de raccords respectifs visibles à la figure 2 mais non référencés. En d'autres termes, chaque accumulateur 110, 120, 130 ou 140 peut être dédié à une peinture de teinte déterminée.Like the accumulator 120, each accumulator 110, 120, 130 and 140 is connected to a respective painting circuit, such as the circuit 20, not shown, via respective connectors visible to the figure 2 but not referenced. In other words, each accumulator 110, 120, 130 or 140 may be dedicated to a specific shade of paint.

Le circuit 20 a pour première fonction d'alimenter l'accumulateur 120 en peinture. Un tel circuit est désigné usuellement par le mot anglais « circulating ». Le circuit 20 peut être formé par un tuyau flexible, dans lequel la peinture est soumise à une pression d'environ 6 bars par une pompe non représentée. Le circuit 20 appartient à l'installation de projection de peinture au même titre que la station S.The circuit 20 has the first function of supplying the accumulator 120 with paint. Such a circuit is usually designated by the English word "circulating". The circuit 20 may be formed by a flexible pipe, in which the paint is subjected to a pressure of about 6 bar by a pump not shown. The circuit 20 belongs to the paint spray installation in the same way as the station S.

Par ailleurs, l'accumulateur 120 est connecté à l'unité d'accostage 200 par des moyens de connexion qui comprennent un raccord 122, un tuyau 123 et un raccord 222.1. Le raccord 122 est fixé dans le flasque 127. Le raccord 222.1 est fixé dans une embase 220 appartenant à l'unité d'accostage 200. Le tuyau 123 s'étend entre les raccords 122 et 222.1.On the other hand, the accumulator 120 is connected to the docking unit 200 by connection means which comprise a coupling 122, a pipe 123 and a coupling 222.1. The coupling 122 is fixed in the flange 127. The coupling 222.1 is fixed in a base 220 belonging to the docking unit 200. The pipe 123 extends between the connectors 122 and 222.1.

L'embase 220 est disposée sur le plateau 210 près de la zone de réception 250. Comme le montre la figure 3, l'embase 220 comprend plusieurs vannes de tête juxtaposées, dont les vannes de tête 221, 222, 223, 224 et 225 qui correspondent respectivement aux accumulateurs 110, 120, 130, 140 et 150. Chaque vanne 221, 222, 223, 224 ou 225 a une structure conventionnelle et elle est manoeuvrée par des organes pneumatiques non représentés. Alternativement, chaque vanne 221, 222, 223, 224 ou 225 peut être configurée pour être manoeuvrée par le projecteur 1, soit mécaniquement soit au moyen d'un pilotage pneumatique, ce qui permet de n'ouvrir la vanne 221, 222, 223, 224 ou 225 respective qu'après connexion du projecteur 1.The base 220 is disposed on the plate 210 near the receiving zone 250. As shown in FIG. figure 3 , the base 220 includes several head valves juxtaposed, including the head valves 221, 222, 223, 224 and 225 which respectively correspond to the accumulators 110, 120, 130, 140 and 150. Each valve 221, 222, 223, 224 or 225 has a conventional structure and it is maneuvered by unrepresented pneumatic members. Alternatively, each valve 221, 222, 223, 224 or 225 may be configured to be operated by the projector 1, either mechanically or by means of a pneumatic control, which makes it possible to open the valve 221, 222, 223, 224 or 225 respectively after connection of the projector 1.

Comme le montre la figure 5, la vanne de tête 222 contrôle, c'est-à-dire, autorise ou empêche, l'écoulement de produit dans un canal de sortie 232. Le canal de sortie 232 est défini dans l'embase 220 où il forme l'extrémité aval de l'unité d'accostage 200, donc de la station S. Chaque vanne de tête 221, 222, 223, 224 ou 225 forme un organe de connexion de l'unité d'accostage au réservoir 10. En pratique, la vanne de tête 222 ou équivalent relie un canal de sortie 232 ou équivalent de l'embase 220 au réservoir 10 via le projecteur 1. Pour réapprovisionner son réservoir 10, le projecteur 1 doit être connecté à un canal de sortie 232 ou équivalent. Le canal de sortie sélectionné est celui qui correspond à la teinte de peinture requise.As shown in figure 5 , the head valve 222 controls, i.e., allows or prevents, product flow in an outlet channel 232. The outlet channel 232 is defined in the base 220 where it forms the end downstream of the docking unit 200, thus the station S. Each head valve 221, 222, 223, 224 or 225 forms a connection member of the docking unit to the tank 10. In practice, the valve head 222 or equivalent connects an output channel 232 or equivalent of the base 220 to the tank 10 via the projector 1. To replenish its tank 10, the projector 1 must be connected to an output channel 232 or equivalent. The selected output channel is the one that matches the required paint tint.

Dans la présente demande, les termes « aval » et « amont » sont employés par référence au sens d'écoulement du fluide, produit de revêtement, air comprimé ou produit de nettoyage.In the present application, the terms "downstream" and "upstream" are used by reference to the flow direction of the fluid, coating product, compressed air or cleaning product.

A la différence des accumulateurs 110, 120, 130 et 140, l'accumulateur 150 est relié à plusieurs circuits 70 à 79 où circulent différents produits de revêtement, en l'occurrence des peintures de teintes différentes. Les circuits de peinture 70 à 79 sont représentés en traits mixtes aux figures 1 et 2. L'accumulateur 150 est relié aux circuits 70 à 79 notamment par l'intermédiaire d'un bloc 152 de changement de produit de revêtement. Le bloc 152 présente une structure et des fonctions conventionnelles.Unlike the accumulators 110, 120, 130 and 140, the accumulator 150 is connected to several circuits 70 to 79 where different coating products circulate, in this case paints of different hues. The paint circuits 70 to 79 are represented in phantom lines to figures 1 and 2 . The accumulator 150 is connected to the circuits 70 to 79, in particular via a block 152 for changing the coating product. Block 152 has a conventional structure and functions.

Comme le montre la figure 1, le bloc 152 est composé d'une juxtaposition de plusieurs modules élémentaires 160 à 169, à raison d'un module élémentaire 160 à 169 par circuit 70 à 79. Sur chaque module élémentaire 160 à 169 est fixé un raccord 170 à 179 respectif. Les embouts des circuits de peinture 70 à 79 sont fixés respectivement dans les raccords 170 à 179. Les moyens de raccordement de l'accumulateur 150 aux circuits de peinture 70 à 79 comprennent le bloc 152 et les raccords 170 à 179.As shown in figure 1 , block 152 is composed of a juxtaposition of several elementary modules 160 to 169, at the rate of one elementary module 160 to 169 per circuit 70 to 79. On each elementary module 160 to 169 is fixed a respective connection 170 to 179. The ends of the paint circuits 70 to 79 are respectively fixed in the connections 170 to 179. The means for connecting the accumulator 150 to the paint circuits 70 to 79 comprise the block 152 and the connections 170 to 179.

Ces moyens de raccordement comprennent également un raccord 151 fixé dans un flasque 157 monté à une extrémité de l'accumulateur 150. Le raccord 151 est relié au bloc 152 par l'intermédiaire d'un tuyau 154 qui est représenté en traits mixtes à la figure 2.These connection means also comprise a connection 151 fixed in a flange 157 mounted at one end of the accumulator 150. The connection 151 is connected to the block 152 via a pipe 154 which is shown in phantom at the left. figure 2 .

De plus, comme le montrent les figures 1, 2 et 4, l'accumulateur 150 est connecté à l'embase 220 par l'intermédiaire de moyens de connexion qui comprennent :

  • un raccord 156 fixé dans le flasque 157 ;
  • un raccord 225.1 fixé dans l'embase 220 et analogue au raccord 222.1 ;
  • un tuyau 153 qui s'étend entre les raccords 156 et 225.1.
Moreover, as shown by figures 1 , 2 and 4 , the accumulator 150 is connected to the base 220 via connection means which comprise:
  • a connector 156 fixed in the flange 157;
  • a connector 225.1 fixed in the base 220 and the like 222.1 fitting;
  • a pipe 153 which extends between the connections 156 and 225.1.

Comme l'accumulateur 150 est relié à plusieurs circuits de peinture 70 à 79, il est qualifié de « polyvalent ». En d'autres termes, l'accumulateur 150 n'est pas dédié à une peinture spécifique, mais à plusieurs peintures distinctes ayant des teintes différentes. L'accumulateur 150 est dédié aux peintures les moins souvent utilisées, tandis que chaque accumulateur 110, 120, 130 ou 140 est dédié à une peinture de teinte plus souvent utilisée. En d'autres termes, l'accumulateur 150 est dédié aux teintes dites « rares », tandis que chaque accumulateur 110, 120, 130 ou 140 est dédié à une teinte dite « principale ».Since the accumulator 150 is connected to several paint circuits 70 to 79, it is described as "versatile". In other words, the accumulator 150 is not dedicated to a specific paint, but to several different paints having different hues. The accumulator 150 is dedicated to the less frequently used paints, while each accumulator 110, 120, 130 or 140 is dedicated to a hue paint more often used. In other words, the accumulator 150 is dedicated to so-called "rare" shades, while each accumulator 110, 120, 130 or 140 is dedicated to a so-called "main" shade.

Par ailleurs, l'unité d'accostage 200 comprend un dispositif 251 pour rincer les surfaces extérieures du projecteur 1. Le dispositif 251, connu en soi, est relié à une conduite de produit de nettoyage non représentée, par l'intermédiaire d'un' organe de raccordement ou raccord 252 visible à la figure 1. La zone de réception 250 comprend l'ouverture rectangulaire supérieure du châssis 201, à travers laquelle une partie du projecteur 1 peut passer pour pénétrer dans le dispositif 251. En outre, le dispositif 251 est relié à une conduite d'air comprimé non représentée, de façon à sécher le produit de nettoyage préalablement injecté.Furthermore, the docking unit 200 comprises a device 251 for rinsing the outer surfaces of the projector 1. The device 251, known per se, is connected to a not shown cleaning product line, via a connecting member or connection 252 visible to the figure 1 . The receiving zone 250 includes the upper rectangular opening of the frame 201, through which a portion of the projector 1 can pass to enter the device 251. In addition, the device 251 is connected to a not shown compressed air line, so as to dry the previously injected cleaning product.

Le dispositif 251 est monté sur un chariot 253 qui est mobile en translation par rapport au châssis 201, suivant la double-flèche X251, au moyen d'un actionneur non représenté. Le dispositif 251 est ainsi mobile entre des positions correspondant à l'alignement du corps 11 du projecteur 1 sur chaque vanne de tête 221, 222, 223, 224 ou 225 respective. De plus, l'unité d'accostage 200 comprend un vérin 215 configuré pour déplacer le plateau 210, donc l'embase 220, en translation suivant la double-flèche X220, de façon à connecter et à déconnecter l'embase 220 et le projecteur 1.The device 251 is mounted on a carriage 253 which is movable in translation relative to the frame 201, along the double-arrow X 251 , by means of a not shown actuator. The device 251 is thus movable between positions corresponding to the alignment of the body 11 of the projector 1 on each head valve 221, 222, 223, 224 or 225 respectively. In addition, the docking unit 200 comprises a jack 215 configured to move the plate 210, thus the base 220, in translation along the double-arrow X 220 , so as to connect and disconnect the base 220 and the projector 1.

Comme le montrent les figures 2 et 3, l'unité d'accostage 200 comprend en outre une platine 204 solidaire de l'unité d'accostage 200. Lors de la connexion du projecteur 1, la platine 204 est située face à l'extrémité distale du projecteur 1. La platine 204 est fixée sur le chariot 253, si bien qu'elle est aussi est mobile en translation par rapport au châssis 201 suivant la double-flèche X251. L'adjectif « distal » désigne un élément du projecteur 1 relativement éloigné du robot 2, tandis que l'adjectif « proximal » désigne un élément qui en est plus proche.As shown by figures 2 and 3 , the docking unit 200 further comprises a plate 204 secured to the docking unit 200. When connecting the projector 1, the plate 204 is located opposite the distal end of the projector 1. The plate 204 is fixed on the carriage 253, so that it is also movable in translation relative to the frame 201 according to the double-arrow X 251 . The adjective "distal" designates an element of the projector 1 relatively far from the robot 2, while the adjective "proximal" designates an element that is closer to it.

La platine 204 comporte un orifice débouchant 206. La platine 204 présente un ergot 207 sur chacune de ses faces, de façon à guider le projecteur 1 et l'embase 220 pour réaliser un contact étanche. La platine 204 sert d'interface entre le projecteur 1 et l'unité d'accostage 200, plus précisément chaque vanne de tête 221, 222, 223, 224 ou 225.The plate 204 has a through opening 206. The plate 204 has a lug 207 on each of its faces, so as to guide the projector 1 and the base 220 to make a sealed contact. The plate 204 serves as an interface between the projector 1 and the docking unit 200, more precisely each head valve 221, 222, 223, 224 or 225.

Lors du raccordement de l'unité d'accostage 200 au projecteur 1 et à son réservoir 10, d'une part, le vérin 215 déplace le plateau 210 jusqu'au contact entre l'embase 220 et la platine 204. La platine 204 et la vanne de tête 222 sont mises en contact étanche par un mouvement relatif, lequel peut être réalisé en translation par le robot 2 et/ou par le vérin 215. Quand l'un des ergots 207 a pénétré dans un alésage correspondant de la vanne de tête 222, le canal de sortie 232 est connecté à l'orifice 206.When connecting the docking unit 200 to the projector 1 and its reservoir 10, on the one hand, the cylinder 215 moves the plate 210 until the contact between the base 220 and the plate 204. The plate 204 and the head valve 222 are placed in sealing contact by a relative movement, which can be carried out in translation by the robot 2 and / or by the cylinder 215. When one of the lugs 207 has penetrated into a corresponding bore of the valve of head 222, the output channel 232 is connected to the port 206.

D'autre part, le robot 2 place le projecteur 1 près de la platine 204.Une vanne 12 est incorporée au projecteur 1 pour contrôler le réapprovisionnement du réservoir 10. La platine 204 et la partie distale 13 de la vanne 12 sont mises en contact étanche par un mouvement relatif, lequel peut être réalisé en translation par le robot 2 et/ou par le vérin 215.On the other hand, the robot 2 places the projector 1 near the plate 204. A valve 12 is incorporated in the projector 1 to control the replenishment of the reservoir 10. The plate 204 and the distal portion 13 of the valve 12 are brought into contact with each other. sealed by a relative movement, which can be carried out in translation by the robot 2 and / or by the cylinder 215.

Chaque accumulateur 120 ou équivalent comprend un piston 120.2 et une chambre de poussée 120.1. Le piston 120.2 est mobile en translation dans l'accumulateur 120. La chambre de poussée 120.1 est délimitée par le piston 120.2 et par les parois de l'accumulateur 120. La peinture est contenue dans la chambre, référencée V120, qui est délimitée par le piston 120.2 et qui est située au-dessus de la chambre de poussée 120.1. En variante, la chambre de poussée 120.1 peut être placée au-dessus de la chambre contenant la peinture. La chambre de poussée 120.1 est destinée à être mise sous pression pour exercer une force de pression F120 sur le piston 120.2, de façon à expulser la peinture de l'accumulateur 120.Each accumulator 120 or equivalent comprises a piston 120.2 and a thrust chamber 120.1. The piston 120.2 is movable in translation in the accumulator 120. The thrust chamber 120.1 is delimited by the piston 120.2 and by the walls of the accumulator 120. The paint is contained in the chamber, referenced V 120 , which is delimited by the piston 120.2 and which is located above the thrust chamber 120.1. Alternatively, the chamber of thrust 120.1 can be placed above the chamber containing the paint. The thrust chamber 120.1 is intended to be pressurized to exert a pressing force F 120 on the piston 120.2, so as to expel the paint from the accumulator 120.

Pour augmenter la pression dans la chambre de poussée 120.1, un fluide de poussée, en l'occurrence de l'air comprimé, est fourni par la conduite d'air 25. La conduite d'air 25 est raccordée au flasque 127 par l'intermédiaire d'un raccord 125, puis au flasque 128 par l'intermédiaire d'un conduit et d'un raccord non représentés. Le fluide de poussée circule depuis la conduite 25, dans le raccord 125, puis dans le flasque 127, avant d'être introduit dans la chambre de poussée 120.1, via le conduit et le raccord non représentés. Alternativement, un raccord de type 125 peut être monté directement sur le flasque 128.To increase the pressure in the thrust chamber 120.1, a thrust fluid, in this case compressed air, is supplied by the air line 25. The air line 25 is connected to the flange 127 by the intermediate of a connector 125, then to the flange 128 via a conduit and a fitting not shown. The thrust fluid flows from the pipe 25, in the connection 125, then into the flange 127, before being introduced into the thrust chamber 120.1, via the pipe and the connection not shown. Alternatively, a type connection 125 can be mounted directly on the flange 128.

Un distributeur pneumatique non représenté, tel qu'une vanne trois voies, pilote l'arrivée d'air comprimé dans la chambre de poussée 120.1, via la conduite d'air 25. Ce distributeur pneumatique pilote aussi l'échappement de l'air comprimé hors de la chambre de poussée 120.1, de préférence à l'atmosphère, pour annuler la force de poussée F120, ce qui permet de remplir l'accumulateur 120 en peinture.An unillustrated pneumatic distributor, such as a three-way valve, controls the inflow of compressed air into the thrust chamber 120.1, via the air line 25. This pneumatic distributor also controls the escape of the compressed air outside the thrust chamber 120.1, preferably in the atmosphere, to cancel the thrust force F 120 , which allows to fill the accumulator 120 in paint.

Chaque accumulateur 110, 120, 130, 140 ou 150 fonctionne de façon réversible, c'est-à-dire qu'il peut transférer de la peinture soit vers l'unité d'accostage 200 par l'intermédiaire du tuyau 123 et du raccord 122, soit vers le circuit 20 par l'intermédiaire du raccord 121. La sélection de la direction de la peinture délivrée par l'accumulateur 120 se fait au moyen d'une vanne de sélection 129.1 logée dans le flasque 127. La vanne de sélection 129.1 peut obturer alternativement et simultanément les raccords 121 et 122. La vanne 129.1 commande ainsi l'arrivée de peinture dans l'accumulateur 120 depuis le circuit de peinture 20, ainsi que la sortie de la peinture hors de l'accumulateur 120 vers le tuyau 123.Each accumulator 110, 120, 130, 140 or 150 operates reversibly, that is to say it can transfer paint either to the docking unit 200 via the pipe 123 and the coupling 122, or to the circuit 20 through the connector 121. The selection of the direction of the paint delivered by the accumulator 120 is by means of a selection valve 129.1 housed in the flange 127. The selection valve 129.1 can alternately and simultaneously close the connections 121 and 122. The valve 129.1 thus controls the arrival of paint in the accumulator 120 from the paint circuit 20, as well as the exit of the paint from the accumulator 120 towards the pipe 123.

Les tuyaux 123 et 153, qui connectent l'embase 220 respectivement aux accumulateurs 110, 120, 130, 140 et 150, ont des longueurs relativement courtes, ce qui permet de minimiser les pertes de charge dans l'écoulement de la peinture, donc de limiter la durée du réapprovisionnement du réservoir 10 par l'accumulateur 120 ou équivalent..The pipes 123 and 153, which connect the base 220 respectively to the accumulators 110, 120, 130, 140 and 150, have relatively short lengths, which makes it possible to minimize the pressure losses in the flow of the paint, therefore of limit the duration of replenishment of the tank 10 by the accumulator 120 or equivalent.

La station S fonctionne suivant un procédé de réapprovisionnement conforme à l'invention. Ce procédé comprend une étape consistant à effectuer, en temps masqué, le remplissage d'un ou plusieurs des accumulateurs 110, 120, 130, 140 et 150, en fonction des teintes de peinture sélectionnée pour le(s) prochain(s) cycle(s) de projection de peinture. On remplit par exemple l'accumulateur 120 avec la peinture qui se trouve dans le circuit 20. L'expression « en temps masqué » indique que l'étape est réalisée au cours d'un cycle de projection de peinture, c'est-à-dire sans ralentir la cadence de l'installation de peinture.The station S operates according to a replenishment method according to the invention. This method comprises a step of performing, in masked time, the filling of one or more of the accumulators 110, 120, 130, 140 and 150, according to the paint colors selected for the next cycle (s) ( s) paint projection. For example, the accumulator 120 is filled with the paint which is in the circuit 20. The expression "in masked time" indicates that the step is carried out during a paint projection cycle, that is to say say without slowing down the rate of the paint installation.

Pour effectuer ce remplissage, on pilote le distributeur pneumatique à l'échappement, de façon à établir dans l'accumulateur 120 une pression inférieure à la pression régnant dans la conduite 20. La force de poussée F120 est nulle et la peinture peut entrer dans l'accumulateur 120 en repoussant le piston 120.2. Dans cet état, la pression dans l'accumulateur 120 est la même que la pression dans le circuit 20, à savoir typiquement 6 bars.To perform this filling, the pneumatic distributor is piloted at the exhaust, so as to establish in the accumulator 120 a pressure lower than the pressure in the pipe 20. The thrust force F 120 is zero and the paint may enter the accumulator 120 by pushing the piston 120.2. In this state, the pressure in the accumulator 120 is the same as the pressure in the circuit 20, typically 6 bars.

Puis on pilote la vanne de sélection 129.1 pour « ouvrir » le raccord 121, de sorte que la peinture s'écoule de la conduite 20 dans l'accumulateur 120. Comme le piston 120.2 ne résiste pas à l'entrée de la peinture dans l'accumulateur 120, le remplissage de l'accumulateur 120 peut être effectué en temps masqué, au cours de la phase de projection de peinture par le projecteur 1. Lors du revêtement d'une carrosserie, la phase de projection dure environ 1 min.Then the selector valve 129.1 is piloted to "open" the connector 121, so that the paint flows from the line 20 into the accumulator 120. As the piston 120.2 does not withstand the entry of the paint into the chamber. 120, the filling of the accumulator 120 can be performed in masked time, during the phase of projection of paint by the projector 1. When coating a body, the projection phase lasts about 1 min.

Pour remplir complètement le volume V10 du réservoir 10, le volume V120 de l'accumulateur 120 ou équivalent doit être supérieur ou égal au volume V10. Par exemple, pour un volume à remplir V10 de 400 cm3, on peut mettre en oeuvre un accumulateur 120 dont le volume V120 est de 600 cm3, voire 1000 cm3.To completely fill the volume V 10 of the tank 10, the volume V 120 of the accumulator 120 or equivalent must be greater than or equal to the volume V 10 . For example, for a volume to be filled V 10 of 400 cm 3 , it is possible to use an accumulator 120 whose volume V 120 is 600 cm 3 , or even 1000 cm 3 .

Après le remplissage de l'accumulateur 120, on « ferme » le raccord 121, en pilotant la vanne de sélection 129.1, de façon à interrompre la communication de fluide entre le circuit 20 et l'accumulateur 120 ou équivalent. L'accumulateur 120 est alors isolé du circuit 20.After the charging of the accumulator 120, the connection 121 is closed by controlling the selector valve 129.1 so as to interrupt the communication of fluid between the circuit 20 and the accumulator 120 or equivalent. The accumulator 120 is then isolated from the circuit 20.

Puis, on actionne les moyens de mise sous pression du volume V120 : un distributeur pneumatique alimente la chambre de poussée 120.1 via le raccord 125, de façon à augmenter la pression régnant dans l'accumulateur 120, jusqu'à une pression sensiblement supérieure à la pression du circuit 20. Lorsque la chambre de poussée 120.1 de l'accumulateur 120 se trouve à une pression d'environ 15 bars, l'accumulateur 120 est prêt à débiter la peinture qu'il contient vers l'unité d'accostage 200, pour réapprovisionner le réservoir 10.Then, the means for pressurizing the volume V 120 are actuated: a pneumatic distributor supplies the thrust chamber 120.1 via the coupling 125, so as to increase the pressure in the accumulator 120 to a pressure substantially greater than the pressure of the circuit 20. When the thrust chamber 120.1 of the accumulator 120 is at a pressure of approximately 15 bar, the accumulator 120 is ready to deliver the paint it contains to the docking unit 200, to replenish the tank 10.

Ainsi, le raccord 125 et la chambre de poussée 120.1forment des moyens de mise sous pression du volume V120 de l'accumulateur 120 ou équivalent, à une pression (15 bars) strictement supérieure à la pression qui règne dans le circuit 20 (6 bars).Thus, the coupling 125 and the thrust chamber 120.1 provide means for pressurizing the volume V 120 of the accumulator 120 or equivalent, at a pressure (15 bars) strictly greater than the pressure prevailing in the circuit 20 (6). bar).

A la fin d'un cycle de projection de peinture, après l'étape de remplissage de l'accumulateur 120 ou équivalent, on réalise le raccordement du projecteur 1 et de l'embase 220, en déplaçant le robot 2 et le plateau 210 vers la platine 204. Plus précisément, le projecteur 1 et l'embase 220 sont rapprochés jusqu'à réaliser le contact entre la platine 204, d'une part, et la partie avant 13 de la vanne 12 et la vanne de tête 222, d'autre part.At the end of a paint projection cycle, after the step of filling the accumulator 120 or equivalent, the connection of the projector 1 and the base 220 is made, by moving the robot 2 and the plate 210 towards 204. More precisely, the headlamp 1 and the base 220 are brought together until the contact between the plate 204, on the one hand, and the front part 13 of the valve 12 and the head valve 222, 'somewhere else.

Le volume V10 est porté à une pression relative faible ou nulle, par exemple à la pression atmosphérique. Ensuite, on « ouvre » le raccord 122 de façon à débiter la peinture dans le tuyau 123 jusqu'au réservoir 10 via l'unité d'accostage 200.The volume V 10 is brought to a low or zero relative pressure, for example at atmospheric pressure. Then "fitting" 122 is opened to dispense the paint in the pipe 123 to the tank 10 via the docking unit 200.

Lorsque le réservoir 10 est rempli, le projecteur 1 et l'embase 220 sont déconnectés et le robot dégage le projecteur 1 hors de la zone de réception 250. Le projecteur 1 quitte ainsi la station S pour rejoindre l'espace de projection de peinture.When the reservoir 10 is filled, the projector 1 and the base 220 are disconnected and the robot releases the projector 1 out of the reception area 250. The projector 1 thus leaves the station S to join the paint projection space.

A la fin d'un cycle de projection de peinture, le réservoir 10 équipant le projecteur 1 est partiellement ou totalement vide. Il faut alors réapprovisionner le réservoir 10 en peinture, en effectuant son remplissage tel que décrit ci-dessus. Dans ce but, le robot 2 place le projecteur 1 dans la zone de réception 250. Auparavant, le dispositif 251 est positionné au niveau de la vanne de tête 222 correspondant à l'accumulateur 120 ou équivalent qui est destiné à réaliser le transfert de peinture selon la teinte sélectionnée. Lorsque le projecteur 1 se trouve dans le dispositif 251, on commande la vidange de l'éventuel résidu de peinture hors du réservoir 10. Ce résidu de peinture est collecté par le dispositif 251 puis acheminé dans un centre de traitement des déchets non représentée.At the end of a paint spray cycle, the tank 10 fitted to the projector 1 is partially or totally empty. It is then necessary to refill the reservoir 10 in paint, filling it as described above. For this purpose, the robot 2 places the projector 1 in the receiving zone 250. Previously, the device 251 is positioned at the head valve 222 corresponding to the accumulator 120 or equivalent which is intended to carry out the transfer of paint according to the selected shade. When the projector 1 is in the device 251, it controls the emptying of any paint residue out of the tank 10. This paint residue is collected by the device 251 and then routed to a waste treatment center not shown.

Quand il faut changer la teinte de peinture, on rince l'intérieur du réservoir 10 au moyen d'une conduite de solvant, non représentée, qui peut être raccordée à la platine 204. Comme cela est connu en soi, le dispositif 251 nettoie, avec du solvant amené via le raccord 252, les surfaces extérieures de la partie du projecteur 1 qui porte l'organe de projection et qui peut donc avoir été salie.When it is necessary to change the color of the paint, the inside of the tank 10 is rinsed by means of a solvent line, not shown, which can be connected to the plate 204. As is known per se, the device 251 cleans, with solvent brought via the connection 252, the outer surfaces of the part of the projector 1 which carries the projection member and which may have been soiled. .

Comme cela est décrit ci-dessus, lorsqu'on a mis sous pression la chambre de poussée 120.1, donc la peinture contenue dans le volume V120 de l'accumulateur 120, on « ouvre » la vanne de tête 222 et le raccord 121, par la vanne de sélection 129.1, de sorte que la peinture s'écoule de l'accumulateur 120 jusque dans le réservoir 10 par l'intermédiaire du tuyau 123, ce qui transfère la peinture de l'accumulateur 120 vers l'unité d'accostage 200 et le réservoir 10.As described above, when the thrust chamber 120.1, thus the paint contained in the volume V 120 of the accumulator 120, is pressurized, the head valve 222 and the connection 121 are "opened", by the selector valve 129.1, so that the paint flows from the accumulator 120 into the reservoir 10 via the pipe 123, which transfers the paint from the accumulator 120 to the docking unit 200 and the tank 10.

Le débit de ce transfert du volume V120 vers le volume V10 dépend de la pression régnant dans le volume V120 ou équivalent. Lorsque le volume V120 est mis sous 15 bars de pression par l'intermédiaire du raccord 125, le débit de remplissage du volume V10 peut atteindre 6000 cm3/min durant toute la phase de réapprovisionnement du réservoir 10.The flow rate of this transfer from the volume V 120 to the volume V 10 depends on the pressure prevailing in the volume V 120 or equivalent. When the volume V 120 is placed under 15 bars of pressure via the coupling 125, the filling rate of the volume V 10 can reach 6000 cm 3 / min during the entire refueling phase of the reservoir 10.

Un tel débit de remplissage permet de remplir un volume V10 de 400 cm3 en moins de 5 s. Cette durée de remplissage, ajoutée à la durée d'accostage du projecteur 1, permet de limiter la durée totale de réapprovisionnement du projecteur 1 à moins de 12 secondes. Par « durée totale de réapprovisionnement » on entend la durée séparant l'arrêt et la reprise de la projection de peinture sur les objets à revêtir.Such a filling rate makes it possible to fill a volume V 10 of 400 cm 3 in less than 5 s. This filling time, added to the docking time of the projector 1, limits the total duration of replenishment of the projector 1 to less than 12 seconds. By "total duration of replenishment" means the time between the stop and the resumption of the projection of paint on the objects to be coated.

Une station et un procédé conformes à la présente invention permettent donc de réaliser un réapprovisionnement de durée sensiblement plus courte que les stations et procédés de l'art antérieur. La durée de changement de teinte est donc également raccourcie. Par conséquent, une station et un procédé conformes à la présente invention permettent d'atteindre une cadence de projection d'environ 60 à 70 véhicules/heure.A station and a method according to the present invention therefore make it possible to achieve a replenishment of substantially shorter duration than the stations and methods of the prior art. The duration of change of hue is thus also shortened. Therefore, a station and method according to the present invention can achieve a projection rate of about 60 to 70 vehicles / hour.

En pratique, la pression de transfert peut être comprise entre 10 bars et 30 bars et le débit de transfert peut être compris entre 4000 cm3/min et 6000 cm3/min. Dans la présente demande, les pressions mentionnées sont des pressions relatives et statiques.In practice, the transfer pressure may be between 10 bar and 30 bar and the transfer rate may be between 4000 cm 3 / min and 6000 cm 3 / min. In the present application, the mentioned pressures are relative and static pressures.

Pour réguler cette pression de 15 bars régnant dans l'accumulateur 120 ou équivalent, ainsi que dans les moyens de connexion tels que le tuyau 123 ou 153, la station S comporte en outre au moins un capteur de pression 208 schématisé à la figure 5.To regulate this pressure of 15 bar prevailing in the accumulator 120 or equivalent, as well as in the connection means such as the pipe 123 or 153, the station S further comprises at least one pressure sensor 208 schematized at the figure 5 .

Par ailleurs, dans une installation de peinture, la sélection de la teinte de peinture à projeter sur chaque carrosserie de véhicule automobile est effectuée par une unité de supervision. Cette unité de supervision définit des séquences de teintes très variables, si bien qu'une teinte peut ne pas être sélectionnée pendant une durée relativement longue, au cours de laquelle la peinture stagne dans un ou plusieurs des accumulateurs 110, 120, 130, 140 ou 150.Moreover, in a paint installation, the selection of the paint color to be sprayed on each body of a motor vehicle is carried out by a supervision unit. This supervision unit defines highly variable hue sequences, so that a hue may not be selected for a relatively long time, during which the paint stagnates in one or more of the accumulators 110, 120, 130, 140 or 150.

Pour limiter la sédimentation de cette peinture stagnante, un procédé conforme à l'invention comprend en outre une étape au cours de laquelle la peinture stagnant dans l'accumulateur 110, 120, 130, 140 ou 150 est refoulée dans le circuit de peinture respectif, après une durée qui est déterminée en fonction des caractéristiques de la peinture.To limit the sedimentation of this stagnant paint, a process according to the invention also comprises a step during which the stagnant paint in the accumulator 110, 120, 130, 140 or 150 is forced back into the respective paint circuit, after a time that is determined according to the characteristics of the painting.

Pour opérer ce refoulement de peinture, on relie l'accumulateur 120 ou équivalent au circuit 20 en ouvrant le raccord 121 au moyen de la vanne de sélection 129.1. Comme le volume V120 est à une pression supérieure, typiquement 15 bars, à la pression régnant dans le circuit 20, typiquement 6 bars, la peinture s'écoule de l'accumulateur 120 vers le circuit 20, jusqu'à vidange complète du volume V120. Ce refoulement limite ainsi la stagnation de peinture dans l'accumulateur 120 ou équivalent. Ultérieurement, il est possible de remplir à nouveau l'accumulateur 120, suivant les étapes décrites ci-dessus, pour répondre à une commande de l'unité de supervision.In order to effect this backflow of paint, the accumulator 120 or equivalent is connected to the circuit 20 by opening the connection 121 by means of the selection valve 129.1. As the volume V 120 is at a higher pressure, typically 15 bar, at the pressure in the circuit 20, typically 6 bar, the paint flows from the accumulator 120 to the circuit 20, until complete emptying of the volume V 120 . This backflow thus limits the stagnation of paint in the accumulator 120 or equivalent. Subsequently, it is possible to refill the accumulator 120, following the steps described above, to respond to a command from the supervision unit.

Selon une variante non représentée, au lieu de refouler la peinture par le raccord 121, une station conforme à l'invention peut comporter, pour chaque accumulateur, un raccord et un conduit de refoulement spécifiques dont l'alimentation est pilotée par des vannes.According to a variant not shown, instead of repressing the paint through the connector 121, a station according to the invention may comprise, for each accumulator, a specific connection and discharge pipe whose supply is controlled by valves.

Par ailleurs, une station conforme à l'invention peut comporter, pour chaque accumulateur, un circuit et une vanne dits de « purge », afin de récupérer le solvant ayant circulé dans l'accumulateur au cours de la phase de nettoyage.Furthermore, a station according to the invention may comprise, for each accumulator, a circuit and a so-called "purge" valve, in order to recover the solvent circulated in the accumulator during the cleaning phase.

Ce fonctionnement réversible des accumulateurs limite la sédimentation de peinture. Ainsi, une station de réapprovisionnement conforme à l'invention peut être raccordée à des circuits de produit de revêtement composés chacun d'un brin unique pour les circulations « aller » et « retour » du produit de revêtement. Néanmoins, une station de réapprovisionnement conforme à l'invention peut être raccordée à des circuits de produit de revêtement à double brin, un brin « aller » et un brin « retour », qui existent généralement dans une installation de peinture conventionnelle.This reversible operation of the accumulators limits the sedimentation of paint. Thus, a replenishing station according to the invention can be connected to coating product circuits each composed of a single strand for the "out" and "return" circulation of the coating product. Nevertheless, a replenishing station according to the invention can be connected to double-strand coating product circuits, a "go" strand and a "return" strand, which generally exist in a conventional paint installation.

De plus, une station de réapprovisionnement conforme à l'invention ne nécessite pas de circuits de produit de revêtement aux dimensions renforcées, car ils sont portés à des pressions usuelles, de l'ordre de 6 bars.In addition, a replenishing station according to the invention does not require coating product circuits with increased dimensions, because they are brought to usual pressures, of the order of 6 bars.

La structure de la station et celle de l'installation dont elle fait partie sont donc plus simples que celles de l'art antérieur, ce qui réduit sensiblement les coûts de fabrication, de montage et de maintenance.The structure of the station and that of the installation of which it forms part are therefore simpler than those of the prior art, which substantially reduces the costs of manufacture, assembly and maintenance.

Par ailleurs, malgré des séquences de teinte qui peuvent être complexes, une station et un procédé conformes à la présente invention améliore la gestion des peintures de différentes teintes, car les teintes « rares » sont prises en charge par l'accumulateur polyvalent et car les teintes « principales » sont prises en charge par des accumulateurs dédiés. Cette gestion améliorée des peintures de différentes teintes permet en outre de diminuer les pertes de produit de revêtement et de produit de nettoyage.On the other hand, despite complex hue sequences, a station and method in accordance with the present invention improves the handling of paints of different hues, since "rare" hues are supported by the multi-purpose accumulator and because "main" shades are taken care of by dedicated accumulators. This improved management of paints of different colors also makes it possible to reduce the losses of coating product and cleaning product.

La station S a été représentée avec cinq accumulateurs dédiés. Cependant, une station de réapprovisionnement conforme à l'invention peut comporter autant d'accumulateurs dédiés que de teintes « principales ». Par exemple, une station de réapprovisionnement conforme à l'invention peut comporter entre un et trente accumulateur(s) dédié(s), de préférence seize.Station S has been represented with five dedicated accumulators. However, a replenishment station according to the invention may comprise as many dedicated accumulators as "main" shades. For example, a replenishment station according to the invention may comprise between one and thirty dedicated accumulator (s), preferably sixteen.

Selon une variante non représentée, les moyens de mise sous pression du volume de chaque accumulateur comprennent une chambre de poussée formée directement au-dessus du produit de revêtement. Un tel accumulateur est dépourvu de piston et l'air comprimé exerce alors sa pression directement sur le produit de revêtement qu'il expulse hors de l'accumulateur. Chaque accumulateur fonctionne alors comme un pot sous pression.According to a variant not shown, the means for pressurizing the volume of each accumulator comprises a thrust chamber formed directly above the coating product. Such an accumulator is devoid of piston and the compressed air then exerts its pressure directly on the coating product that it expels out of the accumulator. Each accumulator then functions as a pressure pot.

Claims (13)

  1. A station (S) for re-supplying coating material to at least one atomizer (1) equipped with at least one reservoir (10) and disposed on a robot (2) that is mounted to move relative to the articles to be coated; the station (S) including:
    • coupling means (121, 170-179) for coupling to at least one coating material circuit (20, 70-79);
    • a docking unit (200) defining an atomizer-receiving zone (250) for receiving at least one atomizer (1);
    the station (S) being characterized in that it further includes:
    • at least one accumulator (110, 120, 130, 140, 150) having a volume (V120) greater than or equal to the volume (V10) of the reservoir (10), the or each accumulator (110, 120, 130, 140, 150) being adapted to be connected to at least one respective coating material circuit (20, 70-79) via the coupling means (121, 170-179);
    • pressurising means (125, 120.1, 120.2) for putting the volume (V120) of the accumulator (110, 120, 130, 140, 150) under pressure;
    • coupling means (121, 123 - 156, 153) for coupling the or each accumulator (110, 120, 130, 140, 150) to the docking unit (200); and
    • a convection member (221, 222, 223, 224, 225) for connecting the docking unit (200) to the reservoir (10).
  2. A station (S) according to claim 1, characterized in that it includes a versatile accumulator (150) connected to a plurality of circuits (20, 70-79) via coupling means (170-179) that include a coating material change block (152), the versatile accumulator (110, 120, 130, 140, 150) being connected firstly to the coating material change block (152) and secondly to the docking unit (200).
  3. A station (S) according to claim 1 or 2, characterized in that it includes a plurality of accumulators (110, 120, 130, 140), each of which is connected to a respective circuit (20) via distinct coupling means (121), the connection member (221, 222, 223, 224, 225) including, for each accumulator (110, 120, 130, 140, 150), a head valve configured for being connected to the atomizer (1).
  4. A station (S) according to claim 3, characterized in that it further includes at least one coupling member (252) for coupling to at least one cleaning material duct, and in that the docking unit (200) further includes a device (251) for rinsing the outside surfaces of the atomizer (1), the device (251) being connected to the cleaning material duct via the coupling member (252), the device (251) being mounted to move between a plurality of positions corresponding to the respective head valves.
  5. A station (S) according to any one of claims 2 and 3 or 4, characterized in that the versatile accumulator (150) is dedicated to the coating materials that are used least often, while each other accumulator (110, 120, 130, 140) is dedicated to a coating material that is used more often.
  6. A station (S) according to any preceding claim, characterized in that the or each accumulator (110, 120, 130, 140, 150) operates reversibly, so that it can transfer coating material either towards the docking unit (200) or towards the coupling means (121, 170-179) for coupling to the corresponding circuit (20, 70-79).
  7. A station (S) according to any preceding claim, characterized in that the pressurizing means (125, 120.1, 120.2) comprise a coupling (125) and a respective thrust chamber (120.1) belonging to the or to each accumulator (110, 120, 130, 140, 150), the thrust chamber (120.1) being designed to be put under pressure in such a manner as to expel coating material from the corresponding accumulator (110, 120, 130, 140, 150), the coupling (125) being adapted to connect the thrust chamber (120.1) to a compressed air duct (25).
  8. A station (S) according to claim 7, characterized in that the pressurizing means (125, 120.1, 120.2) comprise a respective piston (120.2) belonging to the or each accumulator (110, 120, 130, 140, 150), the piston (120.2) defining the thrust chamber (120.1) and being mounted to move in translation in the corresponding accumulator (110, 120, 130, 140, 150).
  9. A station (S) according to any preceding claim, characterized in that it further includes at least one pressure sensor (208) for regulating the pressure prevailing in the or each accumulator (110, 120, 130, 140, 150) and in the connection means (121, 123 - 156, 153).
  10. A method of re-supplying coating material to at least one atomizer (1) equipped with at least one reservoir (10) and disposed on a robot (2) that is mounted to move relative to articles to be coated;
    the method being characterized in that it uses a station (S) including:
    • a docking unit (200) defining an atomizer-receiving zone (250) for at least one atomizer (1);
    • at least one accumulator (110, 120, 130, 140, 150) having a volume (V120) greater than or equal to the volume (V10) of the reservoir (10), the or each accumulator (110, 120, 130, 140, 150) being adapted to be connected to at least one respective coating material circuit (20, 70-79) via coupling means (121, 170-179);
    • connection means (121, 123 - 156, 153) for connecting the or of each accumulator (110, 120, 130, 140, 150) to the docking unit (200); and
    • a connection member (221, 222, 223, 224, 225) for connecting the docking unit (200) to the reservoir (10);
    the method being characterized in that it comprises the following steps:
    a) filling the or each accumulator (110, 120, 130, 140, 150) with coating material via the coupling means (121, 170-179);
    b) pressurizing the volume (V120) of the accumulator (110, 120, 130, 140, 150);
    c) placing the atomizer (1) in the atomizer-receiving zone (250);
    d) connecting the reservoir (10) to the docking unit (200);
    e) transferring the coating material from one of the accumulators (110, 120, 130, 140, 150) to the docking unit (200) so as to fill the reservoir (10).
  11. A method according to claim 10, characterized in that the filling step e) consists in:
    f) isolating the accumulator (110, 120, 130, 140, 150) from the circuit (20, 70-79) by closing off the coupling means (121, 170-179); and in
    g) performing the transfer at a transfer flow rate lying in the range 4000 cm3/min to 6000 cm3/min, the accumulator (110, 120, 130, 140, 150) being put under a transfer pressure greater than the filling pressure prevailing in the circuit (20, 70-79), the transfer pressure lying in the range 10 bars to 30 bars, and preferably being 15 bars.
  12. A method according to any one of claims 10 to 11, characterized in that it further comprises the following steps:
    h) prior to the placement step b), positioning a device (251) for cleaning the outside surface of the atomizer (1) at a head valve corresponding to the accumulator (110, 120, 130, 140, 150) serving to perform the transfer step d); and
    i) essentially during the coupling step c) and during the transfer step d), rinsing the outside surfaces of the atomizer (1) by means of the device (251).
  13. A method according to any one of claims 10 to 12, characterized in that it further comprises the following steps:
    j) connecting the accumulator (110, 120, 130, 140, 150) to the respective circuit (20, 70-79) by opening the coupling means (121, 170-179); and
    k) returning into the corresponding circuit (20, 70-79) the coating material contained in an accumulator (110, 120, 130, 140, 150), after a length of time determined so as to limit settling-out of the coating material.
EP20090801750 2008-12-09 2009-12-08 Device and method for supplying a movable sprayer with coating means Active EP2358480B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0858415A FR2939335B1 (en) 2008-12-09 2008-12-09 STATION AND METHOD FOR REPAIRING COATING PRODUCT A MOBILE PROJECTOR
PCT/FR2009/052453 WO2010067015A1 (en) 2008-12-09 2009-12-08 Station and method for reloading a mobile sprayer with coating material

Publications (2)

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EP2358480A1 EP2358480A1 (en) 2011-08-24
EP2358480B1 true EP2358480B1 (en) 2014-06-25

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EP (1) EP2358480B1 (en)
JP (1) JP5575796B2 (en)
KR (1) KR101665074B1 (en)
CN (1) CN102292162B (en)
BR (1) BRPI0917613B1 (en)
ES (1) ES2484323T3 (en)
FR (1) FR2939335B1 (en)
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WO (1) WO2010067015A1 (en)

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FR2939335B1 (en) * 2008-12-09 2011-11-18 Sames Technologies STATION AND METHOD FOR REPAIRING COATING PRODUCT A MOBILE PROJECTOR
FR2977508B1 (en) 2011-07-06 2013-08-16 Sames Technologies CLEANING-FILLING STATION FOR PROJECTION MEANS
EP3374091B1 (en) * 2015-11-12 2019-09-04 Akzo Nobel Coatings International BV Tinting machine and method for dispensing colorant into a paint container with base paint
US10577170B2 (en) * 2017-10-12 2020-03-03 SEM Products, Inc. Point of service coating mixing and delivery kit and method
EP4426500A1 (en) * 2021-11-02 2024-09-11 Abb Schweiz Ag Supply device for supplying coating medium, coating medium apparatus, system and method of supplying coating medium

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FR2815554B1 (en) * 2000-10-19 2002-12-20 Sames Technologies DEVICE AND METHOD FOR POWERING PROJECTORS AND PROJECTION INSTALLATION EQUIPPED WITH SUCH A DEVICE
FR2815555B1 (en) * 2000-10-19 2003-07-18 Sames Technologies DEVICE AND METHOD FOR POWERING PROJECTORS AND PROJECTION SYSTEM EQUIPPED WITH SUCH A DEVICE
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WO2010067015A1 (en) 2010-06-17
RU2476274C1 (en) 2013-02-27
JP2012511419A (en) 2012-05-24
KR101665074B1 (en) 2016-10-12
CN102292162B (en) 2014-06-25
FR2939335A1 (en) 2010-06-11
US20110259431A1 (en) 2011-10-27
ES2484323T3 (en) 2014-08-11
BRPI0917613B1 (en) 2020-01-21
JP5575796B2 (en) 2014-08-20
BRPI0917613A2 (en) 2015-11-17
FR2939335B1 (en) 2011-11-18
CN102292162A (en) 2011-12-21
US8584712B2 (en) 2013-11-19
EP2358480A1 (en) 2011-08-24
RU2011128381A (en) 2013-01-20
KR20110104005A (en) 2011-09-21

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