WO2006067983A1 - Appareil d'enduction par pulverisation electrostatique - Google Patents

Appareil d'enduction par pulverisation electrostatique Download PDF

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Publication number
WO2006067983A1
WO2006067983A1 PCT/JP2005/022704 JP2005022704W WO2006067983A1 WO 2006067983 A1 WO2006067983 A1 WO 2006067983A1 JP 2005022704 W JP2005022704 W JP 2005022704W WO 2006067983 A1 WO2006067983 A1 WO 2006067983A1
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WO
WIPO (PCT)
Prior art keywords
paint
valve
cartridge
flow path
force
Prior art date
Application number
PCT/JP2005/022704
Other languages
English (en)
Japanese (ja)
Inventor
Shigeo Saitou
Yukinori Miyamoto
Original Assignee
Abb K.K.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Abb K.K. filed Critical Abb K.K.
Priority to JP2006515457A priority Critical patent/JPWO2006067983A1/ja
Publication of WO2006067983A1 publication Critical patent/WO2006067983A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B05B5/1616—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material
    • B05B5/1658—Details
    • B05B5/1666—Voltage blocking valves, e.g. with axially separable coupling elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1463—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet separate containers for different materials to be sprayed being moved from a first location, e.g. a filling station, where they are fluidically disconnected from the spraying apparatus, to a second location, generally close to the spraying apparatus, where they are fluidically connected to the latter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to electrostatic coating in which a high voltage is applied directly to a solvent-based metallic paint containing a water-based paint gold pigment, for example.
  • an electrostatic device that coats an object to be coated includes a coating machine that sprays charged paint to which a high voltage is applied by direct charging, and a paint supply apparatus that supplies the paint to the coating machine. It is roughly structured. In directly charged electrostatic coating equipment that directly applies a high voltage to the paint, it is necessary to prevent the high voltage applied to the material from leaking to the ground potential. For this reason, this type of electrostatic coating equipment is configured to block the middle part of the coating machine and paint supply device from the ground potential.
  • a part of the paint supply device is formed as 2 'liquid reservoirs in the form of tubes, and these two liquid U-vacuums are provided on the paint source side and the paint machine side, respectively. It is configured to connect via a hose.
  • the paint in the liquid reservoir is filled through the hose on the paint source side, and then the paint in the hose is discharged and washed.
  • a space is formed in the nose on the paint source side, and the coating machine is cut off from the ground potential by the space formed in the hose.
  • supply air pressure to the liquid reservoir can supply the filled paint to the coating machine through the coating machine side hose.
  • the coating machine sprays the paint toward the object while applying a high voltage to the paint supplied from the liquid reservoir.
  • a plurality of paint tanks attached to a rotating pedestal are connected to the electrostatic coating machine by rotating the rotating pedestal. Since it is configured to switch to the filling position connected to the changer, the paint tank placed at the painting position is cut off from the ground potential by being separated from the color changer. In addition, since it is covered with an insulating cover, the high voltage applied to the paint is prevented from leaking to the first potential during the painting operation (for example, Japanese Patent Laid-Open No. Hei 9-123). 4 3 9 7).
  • one cylinder container constituting the paint supply apparatus is provided, and the paint chamber defined in the cylinder container is connected via a supply pipe line. It is connected to the paint source and connected to the coating machine via the discharge line. And when painting, supply line After the paint chamber of the cylinder container is filled with the paint, the paint in the supply line is discharged and washed, so that the coating machine is placed in the space in the supply line and becomes the first potential.
  • the insulation oil is supplied to the insulation oil chamber of the cylinder container in this state because of the force to be cut off.
  • the coating machine sprays the paint toward the object to be coated while applying a high voltage to the paint supplied from the paint chamber of the cylinder container (for example, Japanese Patent Laid-Open No. 3-2626). 5 5 8).
  • the electrostatic coating apparatus described in Japanese Patent Laid-Open No. 2-28885 described above is configured to extrude paint filled in a liquid reservoir using an extrusion fluid.
  • air gas having compressibility is used as a fluid for extruding the liquid reservoir paint.
  • the pressure of the air changes when the paint in the liquid reservoir is extruded, the paint cannot be stably supplied to the coating machine without a fixed amount. There is a problem that the quality of mouth is lowered.
  • the coating power including the coating machine can be obtained from the force of the coating machine integrated with a plurality of coating tanks. For this reason, when the coating device is attached to the tip of the arm of a painting robot, for example, the force that causes a large load to act on the arm, etc. In order to operate a farm etc. quickly, a large painting robot with large output is required. In addition, there is a problem that a large-scale coating device cannot be used when painting in a narrow and complicated place such as in an automobile.
  • the electrostatic coating apparatus disclosed in Japanese Patent Application Laid-Open No. 3-2 6 2 5 5 8 fills one cylinder container with a paint through a supply line when painting, and supplies the material in the supply line. Discharge, washing Since it is configured to paint after cleaning, is it possible to paint while filling the supply line and cleaning the supply pipeline? 3 ⁇ 4 No fee for painting There is a problem that the nature is low.
  • the object of the present invention is to stably supply the paint while preventing the high voltage applied to the paint from leaking to the ground potential.
  • High voltage shut-off method to cut off against the above and B: Fill the next color paint after washing the previous color paint remaining in the paint filling side car ⁇ U in the high voltage cut-off means with washing fluid
  • the next color paint filled in the paint discharge side cartridge is extruded.
  • the force-lid moving means for moving the U-edge alternately between the paint filling side position and the paint discharge side position.
  • the cartridge moving means finishes the color change process and finishes the next color paint.
  • the paint extrusion means supplies the extrusion liquid to the paint discharge side cartridge
  • the next color paint filled in the paint discharge side cartridge U is pushed out by a fixed amount and discharged to the coating machine. Therefore, the coating machine directly applies a high voltage to the next color paint supplied from the paint discharge side force first page, and sprays the electric paint toward the object to be coated.
  • the paint discharge cartridge is separated from the color changing means, so that the force and the coating machine are electrically connected to the ground potential. It will be blocked. Therefore, even if a high voltage is applied to the paint with a coating machine, the high voltage applied to the paint can be prevented from leaking to the ground potential.
  • the cartridge moving means can move the two cartridges alternately to the paint discharge side position so that the coating can be applied with the wt. be able to
  • the high voltage shut-off means and the coating machine need only be connected by a paint hose, etc., and can be arranged away from the coating machine, so that the coating machine is reduced in size and weight. This comes out.
  • the painting machine can be operated quickly. It is possible to paint efficiently even in a narrow place such as the inside of a car. it can.
  • the high voltage cutoff means includes a paint filling side lid formed of a conductive material, and a paint discharge side lid formed of an insulating material or a conductive material.
  • a force ring made of an insulating material provided with two cartridge movement holes provided between the paint filling side lid and the paint discharge side lid and extending in parallel between the lids. Cylinder housing and each force of the cartridge housing cylinder.
  • Extrusion liquid is supplied from the paint chamber filled with color paint and the paint extrusion means. It can also be defined in the extruded liquid storage chamber
  • the high-voltage cutoff means is formed by forming the coating-filling side cover body from the conductive material and forming the cartridge housing cylinder from the insulating material. Therefore, when the force- ⁇ ridge is moved to the paint discharge side position, the high voltage can be cut off between the paint discharge side force- ⁇ ridge and the paint filling side lid.
  • the high voltage shut-off means is a paint filling side lid, a paint discharge side lid, a force trigger accommodating cylinder, and a force composed of two force bridges. Can be made lighter and lighter, and the degree of freedom of installation location can be increased.
  • the high-voltage cutoff means includes the above-mentioned
  • -It may be configured to provide a force selection valve that selects a ring and connects it to the coating machine.
  • the cartridge selection valve is
  • the high voltage shut-off means is a coating that cleans the fore-color paint adhering to the coating machine by supplying a cleaning fluid to the coating machine after finishing the coating.
  • a machine cleaning means may be provided.
  • the sprayer cleaning means supplies the cleaning fluid to the coating machine, so that the forecolor paint adhering to the coating machine Can be prepared for the next painting process
  • the color changing means comprises a plurality of colors of paint and a cleaning fluid by the device, and there are two forces between the a3 ⁇ 4color changing valve device and the above. ⁇ It may be configured to have a color direction selection valve that makes the paint toward the force U located in the ridge.
  • the color change direction selection valve when the color change valve device supplies the paint or the cleaning fluid, the color change direction selection valve is located at the paint filling of the two cartridge cartridges. Distribute paint or cleaning fluid toward This
  • the paint extruding means is constituted by an extruding liquid supply device for supplying an extruding liquid, and the pushing
  • the extrusion liquid direction selection valve is located on the paint discharge side of the two U-edges. Flow the extruded liquid toward the car ⁇ 'J'.
  • the paint extruding means is composed of two extruding liquid supply devices that supply extruding liquid, and the two extruding liquid supply devices are configured to cut off the high voltage.
  • the extrusion liquid may be separately supplied to the two cartridges constituting the means.
  • a dedicated extrusion liquid supply device can be provided for each of the two cartridges. Therefore, one of the extrusion liquid supply devices can be used on the coating material discharge side. While the extrusion liquid is being supplied to the cartridge U-position, the other extrusion liquid supply device is used to supply the extrusion liquid to the force-filling edge located on the coating material filling side. Even if the previous color paint remains in the cartographic power rig that has moved to the paint filling side, the paint work is still in progress.
  • the high-voltage cutoff means includes a front S
  • the driving air switching valve is
  • the force ⁇ UV movement means can move two car ⁇ U-turns alternately between the paint filling side position and the paint discharge side position by simply switching the drive wheel switching valve.
  • FIG. 1 shows that the electrostatic coating apparatus according to the first embodiment of the present invention is arranged with the first force ridge on the paint filling side and the second force.
  • — ⁇ is an overall configuration diagram showing a state where the ring is arranged on the paint discharge side
  • Fig. 2 is an overall configuration diagram showing the electrostatic coating device of Fig. 1 in a state where the first force cartridge is arranged on the paint discharge side and the second cartridge is arranged on the paint filling side. is there
  • Fig. 4 is an enlarged cross-sectional view of the main part showing a state where the check valve of the car ⁇ U is connected to the connection switching valve, the return side connection valve and the disposal side connection valve.
  • FIG. 5 is an enlarged cross-sectional view of the main part showing the supply side connection valve and the like in FIG. 1 in an enlarged manner.
  • Fig. 6 is an enlarged cross-sectional view of the main part of Fig. 1 showing the force-trigger selection valve, the cleaning fluid valve for the coating machine, etc.
  • Fig. 7 is an enlarged cross-sectional view of the main part showing a state where the Cart'J check valve is connected to the paint supply valve of the force trigger selection valve in Fig. 6.
  • Fig. 8 is an enlarged cross-sectional view of the main part showing each check valve provided on the paint filling side end plate of the force V
  • FIG. 12 is a graph showing the relationship between the moving position of the force gauge U-edge according to the first embodiment of the present invention, the color changing process, and the painting process.
  • Figure 13 shows an evening scheme showing the color change process.
  • Fig. 14 is an overview of the painting process.
  • Fig. 15 is an overall configuration diagram showing an electrostatic coating apparatus equipped with an extrusion liquid supply device and the like according to the second embodiment of the present invention. No.
  • FIG. 16 is a configuration diagram showing a force-cushion U-sushi moving device according to a modification of the present invention.
  • FIGS. 1 to 14 show the first embodiment of the present invention.
  • 1 is a direct charging type electrostatic coating apparatus according to the form of the first embodiment, and the electrostatic coating apparatus 1 is, for example, a water-based paint or a solvent-based system U containing a metal pigment.
  • the electrostatic coating device 1 is close to, for example, a paint ⁇ pos., A reciprocating device, etc. (not shown). Coating machine 2, high-voltage circuit breaker 1 1, color change valve device 60, extruding liquid supply device 6 4, force-trigger selection valve 3 0 force-first-edge moving device 7 4 Etc.
  • the coating machine 2 shows a coating machine constituting the electrostatic coating apparatus 1.
  • the coating machine 2 is a rotating machine equipped with, for example, a rotary atomizing head 2A. It is configured as a chemical coating machine and is attached to the tip of an arm such as a painting robot or reciprocating ball.
  • the coating machine 2 is provided with a paint discharge flow path 2 B for supplying paint to the rotary atomizing head 2 A, and the paint discharge flow path 2 B is provided with a discharge setting for the paint.
  • a paint valve 2 C to be controlled is provided.
  • the paint discharge flow path 2B is connected to a merging path 33 of a force-trigger selection valve 30 described later via a paint flow path 3 such as a paint hose.
  • the high voltage generator 4 is connected to the coating machine 2, so that the coating machine 2 applies a high voltage to the paint flowing through the paint discharge flow path 2B by direct charging. can do.
  • shut-off means for shutting off the coating machine 2 and the cartridge connected to the coating machine 2 for supplying the paint against the ground potential.
  • Reference numeral 1 2 denotes a paint filling side cover that is RX-filled on the filling side where the paint is filled.
  • the paint filling side cover 12 is formed using a conductive material such as a metal material or a conductive resin material. ing.
  • the paint filling side cover 12 closes the end face on the paint filling side of each cartridge moving hole 14 A, 14 B provided in the cartridge housing cylinder 14 described later. To do.
  • the paint filling side cover body 12 is in contact with the case potential, and as a result, when it touches the force— ⁇ U-edges 15, 16, the curling ring 15 1 The voltage charged to 6 can escape to the ground potential.
  • 13 is a paint discharge side cover provided on the discharge side where the paint is discharged to the machine 2 at a distance from the charge side cover 12, and the paint discharge side cover 13 is described later.
  • the cartridge moving holes 14 A and 14 B close the end faces on the paint discharge side.
  • the coating material discharge side lid 13 is formed using an insulating material such as a glass material or an insulating resin material.
  • the paint discharge side lid 13 is made of a conductive material such as a metal material or a conductive resin material. It's a matter of forming.
  • a plurality of pole rods are attached to the end surface of the force-trapping housing cylinder 14 so as to hermetically close the UV nozzle moving holes 14 A and 14 B. Yes.
  • Reference numeral 14 denotes a force-ridge housing cylinder provided between the paint filling side lid 12 and the paint discharge side lid 13.
  • This force-trapping cylinder 14 has, for example, an elliptical cross section.
  • the container cylinder 1 4 has a paint-filled side lid 1 2 so that it is almost parallel.
  • a first force moving bridge moving hole 14 A and a second car moving UV moving hole 14 B extending between the paint discharging side lid body 13 and the paint discharging side lid body 13 are provided.
  • cartridges 15 and 16 described later are inserted so as to be movable in the axial direction.
  • the cartridge housing cylinder 14 is formed of an insulating material such as a glass material or an insulating resin material in the same manner as the coating material discharge side lid 13.
  • the cartridge housing cylinder 14 is made up of a force ridge disposed on the paint discharge side, which is the coating machine 2 side of each of the cartridges “J” 15 and 16. It is electrically disconnected from the filling side lid 1 2 to prevent the high voltage applied to the paint in the coating machine 2 from leaking to the first potential.
  • 1 5 is a paint-filling side cover 1 2 A disk-shaped paint filling-side end plate 15 located on the 2 side, and a disk-like paint discharge-side end plate 1 located on the paint-discharging side lid 1 3 side 5 B and the end plates 1 5 A, 1
  • a cylindrical cylinder portion 15 C provided between 5 B and the cylinder
  • a paint storage chamber 15 E on the B side is divided into a paint storage chamber 15 E on the B side and an extruded liquid storage chamber 15 F on the paint filling side end plate 15 A side. Further, on the outer peripheral side of each of the end plates 15 A and 15 B, a seal ring 15 for hermetically sealing the space between the first force and the U-edge transfer hole 14 A.
  • 1 6 is the second force of the cartridge housing cylinder 14.
  • the second cartridge V is inserted in the axial movement hole 14 B so as to be movable in the axial direction. This second cartridge
  • each chamber 1 7 1 8 is supplied with a drive wheel from a cartridge moving device 74 described later.
  • the first paint filling side chamber 17 is supplied with the driving air, so that the first cartridge 15 is applied to the coating discharge side lid as shown in FIG. 1 Move to the 3 side.
  • the first paint discharge side air chamber 18 is supplied with a drive wheel,
  • 19 is located in the second cartridge movement hole 14 B of the cartridge housing cylinder 14 and located at the paint filling side lid 12 and the second force IJ *
  • FIG. 2 shows the second paint filling side chamber defined between 2 0 is the second car A second paint discharge side air chamber defined in the bridge moving hole 14 B and defined between the paint discharge side cover 13 and the second cartridge 16 Show.
  • the second paint discharge-side air chamber 20 supplies the second cartridge 16 to the paint-filling-side lid 1 2 as shown in FIG. Move to the side.
  • Each guide port '2 1 is supported by the lids 1 2 and 1 3 at both ends. Each guide rod 2 1 is connected to the cartridge 15
  • the high-voltage circuit breaker 1 1 is formed by forming the paint filling side cover 1 2 with a conductive material, and the paint discharge side cover 1 3 and the cartridge housing cylinder 1 4 with an insulating material. It is formed by.
  • the cartridges 1 5 1 6 are separated from the paint filling side cover 1 2, and the paint discharge side cover 13 3 side, that is, the discharge side where paint is discharged to the coating machine 2.
  • the cartridge placed on the coating machine 2 side of the cartridges 15 and 16 can be cut off from the ground potential.
  • the conductive paint filling side cover 12 connected to the ground potential is connected to the cartridge 15 1 6 1 6 which has moved to the filling side where the paint is filled (the paint filling side cover 1 2 side). The high voltage charged on each cartridge 1 5 1 6 Pressure can escape to ground potential o
  • the first connection switching valve 2 2 has three passages 2 2 B 2 2 C 2 2 in the valve casing 2 2 A.
  • a valve body 2 that is operated by an actuating operation portion 2 2 E at the junction of the passages 2 2 B 2 2 C 2 2 D
  • the passage 22B can be connected to a first force bridge side paint inflow passage 41 described later, and the passage 22C is connected to the first passage 61B of the branch passage 61.
  • the passage 2 2 D is in contact with the first discharge passage 61.
  • the first return-side connecting valve 2 3 has a valve casing 2 3
  • a passage 2 3 B bent in a letter A shape is provided, and it is operated by an air-driven operation part 2 3 C in the middle of the passage 2 3 B.
  • the valve body is equipped with 2 3D.
  • the first return side rod connection valve 23 is normally closed, and discharges the extruded liquid in the extruded liquid storage chamber 15 F of the first cartridge 15. When the valve is opened.
  • first waste side connection valve 2 4 is similar to the first return side connection valve 2 3 in that the valve casing 2 4 ⁇ , the passage 2 4 ⁇ , the operating section 2 4 C, and the valve body 2 4 It is composed of D.
  • the first waste side connection valve 24 is normally closed, and the paint and cleaning fluid in the paint chamber 15 E of the first cartridge 15 are discharged. The valve will be opened.
  • the second disposal side connection valve 2 7 has the same configuration as the first connection switching valve 2 2, the first return side connection valve 2 3, and the first disposal side connection valve 24 described above. From these, these valves 2
  • a second supply side connection valve 29 is provided in the circle of the second cartridge moving hole 14 B.
  • a force-relief ridge selection valve 30 described later is provided at a substantially central portion of the coating material discharge side lid body 13.
  • Reference numeral 30 denotes a cartridge selection valve provided almost at the center of the paint discharge side lid body 13.
  • This force-trigger selector valve 30 is a force trimmer located on the paint discharge side lid 13 side of the two cartridges 15 and 16 when painting.
  • the paint chamber and the painter 2 are connected.
  • the cartridge selection valve 30 is used for cleaning the coating machine 2 with a cleaning valve device 7 2 described later. It communicates with the painting machine 2.
  • the car U-shaped selector valve 30 includes a first paint supply path 3 1 connected to the first force--ridge 15, The second paint supply path 3 2 connected to the car cartridge 1 6, the first paint supply path 3 1, and the second paint supply path 3 2 are joined together to form the paint of the coating machine 2. Connect the confluence passage 3 3 connected to the flow passage 3 and the cleaning fluid valve 5 9 for the sprayer.
  • the cleaning fluid passage 3 4 connected to the first paint supply passage 3 1 and the second paint supply passage 3 2, and the first paint supply passage 3 1 and the cleaning fluid passage 3 4 are provided.
  • a first paint passage opening / closing valve 3 6 provided between the first paint supply valve 3 5, the first paint supply passage 3 1 and the merge passage 3 3, and the vicinity of the first paint supply valve 3 5
  • the first cleaning passage opening / closing valve 3 7 provided in the cleaning fluid passage 3 4 and the second coating material provided between the second paint supply passage 3 2 and the cleaning fluid passage 3 4
  • a second cleaning passage opening / closing valve 40 provided in the cleaning fluid passage 3 4,
  • the fuel supply valves 3 5 and 3 8 are arranged at positions corresponding to later-described paint outflow side check valves 4 9 and 5 8 provided in the cartridges 15 and 16, respectively.
  • the first paint supply valve 3 5 is the valve casing 3 5
  • passages 35B, 35C, 35D, operation part 35E, and valve body 35F, passages 35C, 35D are always in communication.
  • the first paint supply valve 35 is normally kept open, and a first force described later provided in the first cartridge 15—the discharge side paint outflow passage. 4 3 communicates with the first coating supply path 3 1. Meanwhile, wash the sprayer 2 Close the valve to prevent the cleaning fluid from flowing out to the passage 3 5 B side o
  • the first paint passage opening / closing valve 36 opens and closes the space between the first paint supply passage 3 1 and the junction passage 3 3.
  • first washing passage opening / closing valve 37 opens when the coating machine 2 is cleaned.
  • valve casing 3 7 A> passage 3 7 B, operation part 3 7 C, and valve body 3 7 D are used.
  • the second paint supply valve 3 8 is connected to the first paint supply valve 3 8.
  • the second paint passage on / off valve 3 9 is similar to the first paint passage on / off valve 3 6 in the valve casing 3 9 A, passage 3 9
  • the second washing passage opening / closing valve 40 is also connected to the valve casing 40 A, passage 40 0 B operation section 40 C, and valve body 40 D in the same manner as the first washing passage opening / closing valve 37. Consists of.
  • the paint, the cleaning thinner, the flow path of the cleaning air, the flow path of the extruding liquid, and the valve device for opening and closing them are provided in the first cartridge 15.
  • the first cartridge 15 has a paint inflow path.
  • the first cartridge side paint inflow passage 41 extends from the paint filling side end plate 15 A force through the cylinder part 15 C to the paint discharge side end plate 15 B, and its tip is bent. Paint chamber 1 5
  • the paint inflow channel 4 1 is shown in FIG. As shown in FIG. 4, when the first cartridge 15 is disposed on the paint filling side lid 12 side, it is connected to the first flow path 61B of the branch flow path 61 described later. Then, paint, cleaning thinner, and cleaning air are allowed to flow from the color change valve device 60 into the material storage chamber 15 E of the first cartridge 15.
  • the first cartridge side extruded liquid flow path 42 extends from the paint discharge side end plate 15 B through the cylinder portion 15 C to the paint filling side end plate 15 A.
  • the middle part is branched and communicates with the extruded liquid storage chamber 15 F.
  • the first force--ridge 15 is disposed on the paint discharge side lid 13 side (discharge side). When connected, it is connected to a first internal flow path 66C of an extruded liquid branch flow path 66 described later.
  • the cartridge-side extruded liquid flow path 42 receives the extruded liquid supplied from the extruded liquid supply device 64 and holds the extruded liquid in the first force-fed ridge 15. It can flow into chamber 15 F.
  • the first cartridge side extruded liquid flow path 4 2 is arranged so that the first force ridge 15 is disposed on the paint filling side lid 12 (filling side). It is connected to the extruded liquid return flow path 68, which will be described later.
  • the force-trigger-side extruded liquid flow path 4 2 allows the extruded liquid in the extruded liquid storage chamber 15 F of the first cartridge 15 to flow into the extruded liquid bundle described later. 6 5 can flow out.
  • first force-trigger side paint disposal flow path 4 4 ⁇ ⁇ Extend the cylinder part 15C from the U-side paint outflow path 4 3 and connect it to the first paint disposal side check valve 4 7 provided on the paint filling side end plate 15A. ⁇
  • A has a paint inflow side check valve 45, an extrusion liquid outflow side check XV check valve 46, and a paint disposal side check valve 47.
  • These check valves 4 5, 4 6, 4 7, as shown in FIG. 1 and FIG. 4, are valves 2 provided on the paint filling side lid 1 2.
  • the first paint inflow side check valve 45 is provided at the end of the paint inflow passage 41, and as shown in FIG.
  • the first paint inflow side check valve valve 45 is fitted to the first connection switching valve 22 and is connected to the first connection switching valve.
  • the first extruded liquid outflow side check valve 4 6 is provided at the end of the extruded liquid flow path 4 2, and in the same manner as the first coating liquid inflow side check valve 4 5 described above, Valve casing 4 6 A, The valve body 4 6 B and the valve spring 4 6 C are roughly configured.
  • the first extruded liquid outflow side check valve 46 is normally closed.
  • the check valve 4 6 is the first
  • connection valve 2 3 When the connection valve 2 3 is opened when the connection valve 2 3 is open, the first force is released. Liquid storage chamber 1 5 F for extruding liquid to flow out.
  • the first paint disposal side check valve 47 is normally closed, while the check valve 47 is the first disposal side connection valve.
  • the liquid discharge side end plate 15 B of the first force ridge 15 is provided with an extruding liquid inflow side check valve 4 8 and a paint outflow side check valve 4 9. Yes.
  • these check valves 4 8 and 4 9 are connected to the supply side connection valve 28 and the cartridge selection valve 30 provided on the paint discharge side lid body 13. It is provided at a position corresponding to the paint supply valve 3 5.
  • connection valve 2 is connected to the first supply side connection valve 2 8, and the connection valve 2
  • the first paint outflow side check valve 4 9 is provided at the end of the paint outflow path 4 3, and in the same manner as the first paint inflow side check valve 4 5 described above, the valve casing 4 9 A, Disc 4 9
  • the first paint outflow side check valve 4 9 is normally closed.
  • the check valve 4 9 is opened by being connected to the first paint supply valve 3 5, and from the paint storage chamber 15 E of the first power ridge 15. The paint is discharged to the painting machine 2.
  • the paint, the cleaning thinner, the flow path of the cleaning air, the flow path of the extruded liquid, and the valve device that opens and closes these are provided in the second cartridge 16.
  • the second car cartridge 16 has a second paint inflow passage.
  • a second paint disposal channel 5 3 is provided.
  • the configuration of the second cartridge 16 is such that the paint inflow path 4 1, the extrusion liquid path 4 2, the paint outflow path 4 3, the paint There is 7 'like waste channel 4 4.
  • the second paint inflow side vacuum valve 5 4 includes a valve casing 5 4 A and a valve body as shown in FIG. 8 in parentheses. It consists of 5 4 B and valve spring 5 4 C ⁇ s>.
  • the second extruded liquid outflow side check valve 55 is similar to the first extruded liquid outflow side check valve 46 described above. 5 5
  • the paint waste side check valve 5 6 of the above is valve casing 5 6 A, valve body 5 6 B, valve spring 5 6 C It is composed of.
  • the second extruding liquid inflow side check valve 5 7 is provided with a valve cannula as in the case of the first extruding liquid inflow side check valve 4 8 described above. 5 7 A, disc
  • the paint outflow side check valve 5 8 of the valve 2 has a valve canning 5 8 A, a valve body 5 8 B, and a valve spring 5. 8 C is composed of
  • the cleaning fluid valve 5 9 for the coating machine always has a supply side channel 7 3 A and a discharge side channel of a cleaning fluid channel 7 3 to be described later.
  • supply side channel 7 3 A is connected to cleaning fluid channel 3 4, and cleaning thinner and cleaning water are applied to the coating machine.
  • Reference numeral 60 denotes a color change valve device as a color change means.
  • the color change valve device 60 has a paint filling side, that is, a paint filling side lid 1.
  • the power connected to the 2 side is to fill the next color paint after washing the previous color paint remaining on the joint 15 or 16 with the washing thinner and washing air.
  • the color change valve device 60 is connected to the ground potential in the same manner as the paint filling side cover 12.
  • cleaning thinner valve 6 0 Th is connected to cleaning thinner source, cleaning air valve 6 0 A r is source of cleaning air
  • Reference numeral 61 denotes a branch flow path provided in contact between the color change valve device 60 and the high voltage circuit breaker 11. This branch flow ⁇
  • Reference numeral 6 3 denotes a color change direction selection valve provided in the branch flow path 61 between the color change device 60 and the high voltage circuit breaker 11.
  • the color change direction selection valve 63 is configured to supply the paint, cleaning thinner, and cleaning air supplied by the color change valve device 60.
  • the cartridge 15 or 1 disposed on the paint filling side lid 12 side. 6 is to be passed.
  • the 6 3 D confluence is provided with a valve body 6 3 F that is operated by an air-driven operating part 6 3 E.
  • the passage 6 3 B is connected to the common flow path 6 1 A of the branch flow path 6 1
  • the passage 6 3 C is connected to the first flow path 6 1 B
  • the passage 6 3 D is the second flow path 6 1. Connected to D.
  • the color change direction selection valve 63 always communicates the common flow path 61A with the first flow path 61B, These paints, etc. are distributed to the first force 1 ⁇ U 15 1 side.
  • the color change direction selection valve 6 3 is operated by the operation unit 6 3 E.
  • the common flow path 6 1 A is communicated with the second flow path 6 1 D, and the paint etc. from the color changer device 60 is moved to the second cartridge 1 6 Circulate to the side.
  • This extruding liquid supply device 6 4 shows an extrusion liquid supply device as a paint extrusion means. This extruding liquid supply device 6 4 is designed to discharge the paint toward the applicator 2 with each force.
  • the extrusion liquid supply device 6 4 is connected to the ground potential in the same manner as the paint filling side cover body 12.
  • the extruding liquid supply device 6 is a positive displacement pump capable of maintaining a constant flow according to the coating conditions such as the type of paint and the finished state, for example, a pump of the type, piston type or the like. 4 Has a kite.
  • the pump 6 4 A has its suction side connected via a suction pipe 6 4 B to an extruded liquid bundle 65 where the liquid is stored. Note that the extruded liquid bundle 65 is at the first potential.
  • a solvent having a high insulation or electrical resistance value is used as the extrusion liquid. It is used.
  • Reference numeral 6 6 denotes an extruding liquid branch passage connected between the extruding liquid supply device 64 and the high voltage circuit breaker 11.
  • This extrusion liquid branch channel 6 6 is used to supply extrusion liquid A common flow path 6 6 A for connecting the discharge side of the pump 6 4 A of the apparatus 6 4 and an extrusion liquid direction selection valve 6 7 described later, the extrusion liquid direction selection valve 6 7 and the paint filling side lid A first external flow path 6 6 B connecting the 1 2 and a first supply provided in the voltage circuit breaker 1 1 and the first external flow path 6 6 B and the paint discharge side lid 1 3 1st internal flow path 6 connecting the side connection valve 2 8
  • Reference numeral 6 7 denotes an extruded liquid direction selection valve provided in the extruded liquid branch flow path 6 6 located between the extruded liquid supply device 6 4 and the high voltage circuit breaker 11. Since the configuration of this extrusion liquid direction selection valve 6 7 is the same as that of the color change direction selection valve 6 3 described above, the extrusion liquid is shown in FIG. Enter the direction selection valve 6 7 with the parenthesis attached. That is, the extruded liquid direction selection valve 6 7 has a valve casing 6 7 A and passages 6 7 B and 6 7 C.
  • the passage 6 7 B is connected to the common passage 6 6 A of the extruding liquid branch passage 6 6, the passage 6 7 C is connected to the first external passage 6 6 B., and the passage 6 7 D is Connected to second external flow path 6 6 D.
  • the extrusion liquid direction selection valve 6 7 always communicates the common flow path 6 6 A with the first external flow path 6 6 B, and allows the extrusion liquid from the extrusion liquid supply device 6 4 to pass through the first flow path 6 6 A. Distribute to cartridge 1 5 side.
  • the extruding liquid direction selection valve 6 7 operates the valve body 6 7 F by the operation section 6 7 E.
  • the common flow path 6 6 A is communicated with the second external flow path 6 6 D, and the extruded liquid from the extruded liquid supply device 64 is
  • 6 8 indicates a first extruded liquid return flow path, and the extruded liquid body return flow path 6 8 connects the first return side connection valve 23 3 and the extruded liquid body bank 6 5.
  • 6 9 indicates a second extruded liquid return flow path, and the extruded liquid return flow path 6 9 connects the second return side connection valve 26 and the extruded liquid tank 65. hi.
  • the cleaning valve device 7 2 shows a cleaning valve device as a means for cleaning the coating machine.
  • This cleaning valve device 7 2 supplies cleaning thinner and cleaning air to the coating machine 2 after the painting is completed, and the coating machine 2 rotates. Atomizing head 2 A, paint discharge flow path 2 B, etc. Residual and attached pre-colored paint is washed.Further, the washing valve device 7 2 has a ground potential as well as the paint filling side cover 12 etc. It is connected .
  • the cleaning valve device 7 2 includes a cleaning thinner valve 7 2 Th and a cleaning air valve 7 2 Ar.
  • This cleaning fluid flow path 7 3 shows the cleaning fluid flow path provided in connection with the cleaning fluid valve 59 for the coating machine.
  • This cleaning fluid flow path 7 3 is connected to the supply side flow path 7 3 A through which cleaning thinner and cleaning air flow from the cleaning valve device 7 2 to the cleaning fluid valve 59 for the coating machine. It consists of a drain side flow path 7 3 B that discharges cleaning thinner etc. from the cleaning fluid valve 5 9 for the coating machine to the waste liquid chamber 6 2
  • reference numeral 7 4 denotes each force gage ridge 15, 1 6 in each force gage ridge moving hole 14 A, 14 B of the cart U-sliding cylinder 14.
  • a force-trigger moving device is shown as the moving means for moving the cartridge U-ridge.
  • the first edge moving device 74 moves the two cartridges 15 and 16 alternately between the paint filling side and the paint discharge side. Also, the cartridge moving device 74 has a paint filling side cover 1.
  • a force ridge moving device 7 4 includes a driving air supply device 75 and air channels 7 6, 7 7, 7 which will be described later.
  • the drive air supply device 7 5 is a drive air supply device that supplies a drive air to be a power source of the cartridge moving device 7 4, and the drive air supply device 7 5 includes an air source 7 5 A and a pressure adjusting valve 7. 5 Consists of B, etc.
  • a branched air flow path 7 6 branched to 7 6 A and the second flow path 7 6 B is connected.
  • the first charging side air flow path 7 7 shows a first charging side air flow path which can communicate with the first flow path 7 6 A end of the branch air flow path 7 6 via a first drive air switching valve 79, which will be described later.
  • the first charging side air flow path 7 7 branches into a main flow path 7 7 A and a sub flow path 7 7 B, and the main flow path 7 7 A extends from the paint filling side lid body 12. It communicates with 1 paint filling side air chamber 1 7.
  • the sub flow path 7 7 B is positioned at a predetermined distance from the paint filling side cover .12, specifically, when the first force —— ⁇ ridge 15 moves to the paint filling side. At the position where the force ridge 15 is blocked by the sealing 15 G just before it collides with the coating material discharge side lid 13 side, the force ridge U
  • the first cartridge moving hole 1 4 opens from the body 14 to the inner surface of A.
  • the first discharge side air flow path 7 8 can communicate with the tip of the first flow path 7 6 A of the branch air flow path 7 6 via a first drive air switching valve 7 9, which will be described later, in the same manner as the first filling side air flow path 7 7.
  • the first discharge side air flow path is shown.
  • the first discharge-side air flow path 7 8 branches into a main flow path 7 8 A and a sub-flow path 7 8 B, and the main flow path 7 8 A is a paint discharge-side lid 1 3 From there, it communicates with the first paint discharge side air chamber 1 8.
  • the sub flow path 78 B is substantially the same as the sub flow path 77 B described above, and the coating material discharge side lid body.
  • the passage area of the restrictor 8 1 A of the sub flow rate adjusting valve 8 1 is smaller than the passage area of the restrictor 8 0 A of the main flow rate adjusting valve 80 Size ⁇ formed
  • the X channel 8 2 branches into a main channel 8 2 A and a sub channel 8 2 B in the same manner as the first filling side X channel 7 7, and the main channel 8 2 A
  • a main flow rate adjusting valve 8 0 is provided, and a sub flow rate adjusting valve 8 1 is provided in the sub flow channel 8 2 B.
  • Reference numeral 8 3 denotes a second discharge-side air flow path that can communicate with the end of the second flow path 7 6 B of the branch air flow path 7 6 via a second drive air switching valve 8 4 described later.
  • the second discharge-side air flow path 8 3 is the same as the first discharge-side air flow path 78,
  • a flow control valve 8 1 is provided.
  • the HIJ air channels 7 7, 7 8, 8 2, and 8 3 are insulated pipes and hoses to prevent leakage of the high voltage applied to the paint to the ground potential. Etc. are used.
  • the drive-air switching valve 8 4 is a second drive X key switching valve, which is connected to the second charging side channel 8 2 and the second channel 7 6 B of the branch channel 7 76.
  • the second discharge-side air flow path 8 3 is connected so as to be switchable.
  • the drive-air switching valve 8 4 changes the flow direction of the drive air of the drive air supply device 7 5 Switch to the second paint filling side chamber 19 or the second paint discharge side chamber 20
  • the passage area 8. of 8.0 A is also large.
  • the force ridge moving device 7 4 is connected to the sub-channel 7 7 B 8 2 B of the filling-side air channel 7 78 2 and the sub-channels of the discharge-side air channels 7 8 and 8 3.
  • a large flow rate drive shaft that passes through the two flow control valves 8 0 8 1 By cart
  • the ridges 15 and 16 can be moved at high speed.
  • the force ridges 15 and 16 are close to the lids 12 and 13, and the seal rings 15 G and 16 G are the sub-channels 7 7 B and
  • the pressure detector 85 stops the control device when the pressure in each air chamber 17, 18, 19, 20 exceeds the set allowable pressure range.
  • An abnormal signal is output to (not shown), and this control device activates the warning alarm and stops the painting work.
  • the electrostatic coating apparatus 1 has the above-described configuration. Next, in the color changing work, cleaning work, and painting work by the electrostatic coating apparatus 1, FIG. 12 to FIG.
  • the car cartridge U moving process in which the first cartridge 15 is moved to the paint filling side cover 12 which is the filling side filled with the paint will be described.
  • the first cartridge 15 is In the first cartridge moving hole 14 A due to the driving air (air pressure) flowing into the first paint discharge side air chamber 18 from the driving air supply device 75 of the plunger moving device 7 4 Moved toward the paint filling side lid 1 2.
  • the first force trigger 15 is disposed on the paint filling side lid 12 side. In this state, the paint is filled in the color changing process described later.
  • the second cartridge 16 is replaced with the first cartridge 15 on the discharge side where paint is discharged to the coating machine 2.
  • the second cartridge 16 is driven by the second air force U by the driving air (air pressure) flowing from the driving air supply device 75 into the second paint filling side air chamber 19.
  • the driving air air pressure
  • the second force 1 D 16 is arranged on the paint discharge side lid 13 side, and the paint is discharged toward the applicator 2 in the process described later.
  • the first force The first force for explaining the color change process for changing the color of the paint filled in the first U-page 15-The first change in the color change process for the first 15 This is performed in parallel with the painting process of S16.
  • the color change direction selection valve 6 3 connects the common flow path 6 1 A of the branch flow path 6 1 to the first flow path 6 1 B, and the first connection switching valve 2 2 is connected to the first flow path 6 1. Connect 1 B to the first cartridge side paint inflow channel 4 1.
  • the first paint inflow side check valve 45, the first paint disposal side check valve 47, and the first waste side connection valve 24 are opened.
  • the process proceeds to an A color paint filling process in which, for example, A color paint is filled.
  • the first extrusion liquid check valve 4 is used to free the movement of the piston 15 D provided in the first cartridge 15. Open 6 and first return connection valve 2 3.
  • the paint storage chamber 15 E of the first cartridge 15 is filled with the A-color paint. To do.
  • the first paint waste side check valve 4 7 and the first waste side connection valve 2 4 are shortly after the A color paint valve 6 OA opens. Is open.
  • the A-color paint is filled up to the first power-side paint-side paint waste flow path 44, and the paint storage chamber 15 E during cleaning, the first power — ⁇ Air bubbles and thinner remaining in the path 4 3 etc. are discharged, and the paint mixed with air bubbles and thinner is prevented from being supplied to the paint discharge side during painting work.
  • the first connection switching valve 2 2 connects the first flow path 6 1 B of the branch flow path 6 1 to the first discharge flow path 6 1 C.
  • the cleaning air valve 6 OAr and the cleaning thinner valve 6 OT h of the color change valve device 60 are alternately opened, so that cleaning air and cleaning thinner are used. Remaining in the common flow path 6 1 A of the branch flow path 6 1, the first flow path 6 1 B, the alternate direction selection valve 6 3, the first connection switching valve 2 2, etc.
  • the color change process for U-edge 15 can be completed.
  • the paint preparation process for filling the paint path with A color paint is performed.
  • the extrusion liquid direction selection valve 6 7 is a common flow path 6 6 of the extrusion liquid branch flow path 6 6.
  • the first extruded liquid inflow side check valve 48, the first material outflow side check valve 49, and the first material supply valve 35 are opened.
  • the extruded liquid supply device 64 by driving the extruded liquid supply device 64, the common flow path 6 6 A of the extruded liquid branch flow path 6 6, the first external flow path 6 6 B, and the first internal flow path 6 6 C, the first cartridge side extruding liquid flow path 4 2.
  • the fixed amount of the extruding liquid is supplied to the extruding liquid storage chamber 15 F of the first cartridge 15. .
  • screw 15 5 D is the paint chamber 15
  • the extrusion liquid direction selection valve 6 7 is a common flow path for the extrusion liquid branch flow path 6 6.
  • 6 6 ⁇ is connected to the first external flow path 6 6 ⁇ , the first supply side connection valve 2 8, the first extruded liquid inflow side check valve 4 8, the first paint outflow side check Valve 4 9, first paint supply valve 3 5, first paint passage opening / closing valve 3 6, and paint valve 2 C of painter 2 are opened.
  • a high voltage is applied to the coating machine 2 by the high voltage generator 4
  • a high voltage is applied to the amber paint flowing through the paint discharge flow path 2 2 of the coating machine 2 by direct charging. Is applied.
  • the operation of the high voltage circuit breaker 11 will be described.
  • the first cartridge 15 placed on the paint discharge side lid 13 side for use in painting is connected to the cartridge selection valve 30. It is in contact with the coating machine 2 through the first paint supply path 3 1, the merge path 3 3, and the paint path 3. For this reason, the first force ridge 15 is charged to a high voltage via the paint filled in the aforementioned path. .
  • the second force ridge 16 is arranged on the paint filling side lid 12 side when the A color paint filled in the first force ridge 15 is applied.
  • the whole is connected to one case potential via a paint filling side lid 12 or the like.
  • the high-voltage circuit breaker 11 is formed by forming a paint discharge side lid 13 and a force-triggered housing cylinder 14 using an insulative material, and is used as an extruded liquid for insulation or electrical resistance. A high value solvent is used.
  • the high voltage circuit breaker 11 can prevent the high voltage applied to the A color paint from leaking to the first potential through the paint.
  • the extruded liquid supply device 64 is driven in such a state that a high-voltage leak is prevented, so that the extruded liquid is supplied to the extruded liquid storage chamber of the first cart unit 15. 1 Supply a fixed amount to 5 F and paint paint chamber 1 5 Discharge A paint in E toward sprayer 2 0
  • the coating machine 2 applies the A color paint to the paint discharge flow path 2.
  • the atomizing head 2A Since the discharge from B toward the rotary atomizing head 2A, the atomizing head 2A atomizes the amber paint and paints along the lines of electric force formed between the object and the coating object. It is possible to fly particles and paint the object.
  • the cleaning air valve 7 2 Ar of the cleaning valve device 7 2 and the cleaning thinner valve 7 2 Th are opened alternately to supply the cleaning fluid and cleaning thinner to the cleaning fluid valve 5 9 for the sprayer.
  • the first paint supply path 3 1, the first paint supply valve 3 5, the first paint passage opening / closing valve 3 6 Fill with cleaning thinner.
  • the filled cleaning thinner is used when A-color paint remains in the first paint supply passage 31, the first paint supply valve 35, and the first paint passage opening / closing valve 36.
  • this paint is prevented from drying and sticking during the painting operation using the second cartridge 16.
  • the cleaning fluid valve 5 9 for the coating machine is connected to the supply side channel 7 of the cleaning fluid channel 7 3.
  • the cleaning thinner is removed from the inside of A, and the high voltage is prevented from leaking to the ground potential through the cleaning thinner.
  • 1 1 is a force-feeding UV cylinder housing cylinder 1 4 having 2 cartridge moving holes 1 4 A and 1 4 B between the paint filling side cover 1 2 and the paint discharge side cover 1 3.
  • Each of the above-mentioned force ridges moving holes 1 4 A 1 4 B Between the filling side where paint is filled and the discharge side where paint is discharged to the coating machine 2 J 'JV 1 15 1 6 is provided to be movable.
  • the paint-filled side lid 12 is made of a conductive material and is in contact with the ground potential.
  • the coating material discharge side lid body 13 and the force-ridge housing cylinder body 14 are made of an insulating material.
  • the force ridge located on the paint filling side is set to the ground potential and electrically insulated from the force ridge located on the paint discharge side.
  • the applied high voltage can be prevented from being grounded. This makes it possible to efficiently apply a high voltage to the paint, which allows the paint to be efficiently applied to the object to be coated.
  • the electrostatic coating apparatus 1 includes, for example, a cleaning operation of the first cartridge 15 by the color change valve device 60, a paint filling operation, and a second cartridge by the extrusion liquid supply device 64.
  • the painting work using the No. 1 6 and the washing work of the painting machine 2 by the washing valve device 7 2 can be performed in parallel.
  • the extruding liquid supply device 6 4 has a force ridge 1 5
  • the paint can be supplied in a certain amount.
  • the paint spray can be stabilized in the paint paint P
  • the equipment 2 can be reduced in size and weight, for example, for painting with a small output. Even when using a mouthpiece, the small painter 2 can be operated quickly. The smaller, lighter painter 2 can be used in a narrow space, such as in a white motion car. Paint and remove o
  • the color change valve device 60 and the extruded liquid yarn inlet device 6 4 have two force-reducing edges 1 Since it is not necessary to prepare two in response to 5 1 6, it is possible to simplify the configuration and to reduce the ax space and reduce wrinkles o
  • FIG. 15 shows a second embodiment of the present invention.
  • the paint extrusion means is an extrusion Consists of two extruding liquid supply devices that supply the liquid, and these two extruding liquid supply devices separately supply the extruding liquid to the two cartridges that constitute the r3 ⁇ 4 voltage blocking means. It is in a different configuration.
  • the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
  • the first extruded liquid supply device 91 is composed of a pump 9 1 A and a suction pipe 9 1 B in the same manner as the extruded liquid supply device 64 according to the first embodiment. .
  • Reference numeral 9 2 denotes a first extruded liquid supply passage for connecting the pump 9 1 A of the first extruded liquid supply apparatus 91 and the first supply side connection valve 28.
  • a first branch channel 93 is provided in the middle of the extruded liquid supply channel 92.
  • 9 4 is a first extruded liquid supply / discharge flow path connected to the first return side connection valve 23, and 9 5 is an extruded liquid supply / discharge flow path 94 to the liquid tank 6 5.
  • 9 5 is an extruded liquid supply / discharge flow path 94 to the liquid tank 6 5.
  • Reference numeral 9 6 denotes a first extrusion liquid supply / discharge switching valve
  • the extrusion liquid supply / discharge switching valve 9 6 includes a branch flow path 9 3, an extrusion liquid supply / discharge flow path 9 4, and an extrusion liquid return flow path 9 5. And connected to.
  • the extruded liquid supply / discharge switching valve 96 is configured in the same manner as the extruded liquid direction selection valve 6 7 according to the first embodiment.
  • the first extruding liquid supply / discharge switching valve 96 connects the extruding liquid supply / discharge flow path 94 to the branch flow path 93 or the extruding liquid return flow path 95.
  • the paint filled in the paint storage chamber 15 E can be discharged toward the coating machine 2 from the force flowing into the extruded liquid storage chamber 15 F of 15.
  • the first extruded liquid supply / discharge switching valve 96 is connected to the first extruded liquid supply / discharge flow path. Connect 9 4 to the first branch channel 9 3.
  • the extruded liquid supplied from the first extruded liquid supply device 91 is passed through the extruded liquid supply channel 9 2, the branch channel 9 3, and the extruded liquid supply / discharge channel 9 4.
  • the cartridge 1 can flow into the extruded liquid storage chamber 15 F of the cartridge 15. Therefore, even when the first force trigger 15 is disposed on the filling side, the extruding liquid may flow into the extruding liquid storage chamber 15 F to displace the piston 15 D. It is possible to discharge the previous color paint remaining in the paint chamber 15 E.
  • Reference numeral 9 7 denotes a second extruding liquid supply device as a paint extruding means, and the extruding liquid supply device 9 7 is provided exclusively for the second cartridge 16. Also, The second extruded liquid supply device 9 7 is composed of a pump 9 7 A and a suction pipe 9 7 B in the same manner as the first extruded liquid supply device 9 1.
  • the first extruding liquid supply channel 9 2, the first branching channel 9 3, the first extruding liquid supply / discharge channel 9 4, the first extruding liquid return channel 9 5, and the first extruding liquid return channel 9 5 It is configured in the same way as the extrusion liquid supply / discharge switching valve 9 6.
  • the switching operation using the second extruding liquid supply / discharge switching valve 102 is the same as the switching operation using the first extruding liquid supply / discharge switching valve 96, and therefore the description thereof will be omitted.
  • a dedicated extruding liquid supply device 9 1 9 7 is provided for each of the two force ridges 1 5 1 6.
  • the volume of 5 E 1 6 E can be reduced, the amount of cleaning fluid used can be reduced, cleaning operations can be performed efficiently in a short time, and workability can be improved. Can do.
  • the cartridge moving device The air flow paths 7 7, 7 8, 8 2, and 8 3 that form 7 4 are the “in flow paths 7 7 A, 7 8 A, 8 2 A, 8 3 ⁇ ⁇ and the sub flow paths 7
  • the present invention is not limited to this.
  • the cartridge moving device 1 1 1 as the cartridge moving means has one each.
  • the air flow paths 1 1 2, 1 1 3, 1 1 4, and 1 1 5 may each be provided with one flow rate adjusting valve 1 1 6.
  • the configuration can be further simplified to further reduce the cost. This configuration can also be applied to the second embodiment.
  • the cartridge moving device 74 includes a first drive air switching valve 79 for the first cartridge 15 and a second cartridge.
  • a case where a second drive air switching valve 8 4 for the ridge 16 is provided is illustrated.
  • the present invention is not limited to this.
  • the first cartridge 15 and the second cartridge 16 are alternately moved by one drive air switching valve. May be. This configuration can be similarly applied to the second embodiment.
  • the color change valve device 60 and the color change direction selection valve 6 3 are exemplified as a configuration in which the color change valve device 60 and the color change direction selection valve 6 3 are connected via the common flow path 6 1 A of the branch flow path 61.
  • the present invention is not limited to this.
  • the common flow path 61A is omitted and the color change valve device 60 and the color change direction selection valve 6 3 are omitted.
  • the present invention is not limited to this.
  • the coating machine 2 is configured as a rotary atomizing head type coating machine equipped with a rotary atomizing head 2 A has been described as an example.
  • the invention is not limited to this, and other coating machines such as an air atomizing type coating machine and a hydraulic atomizing type coating machine may be provided.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Abstract

Le disjoncteur haute tension (11) objet de l'invention comporte un couvercle latéral pour le remplissage avec de la peinture conductrice (12) au potentiel de la masse, un couvercle latéral pour l’apport de la peinture isolante (13), ainsi qu'une cartouche isolante qui contient un corps cylindrique (14). Des cartouches (15, 16), qui peuvent être déplacées entre le côté rempli de peinture et le côté servant à amener la peinture à un appareil d'enduction par pulvérisation (2), sont montées dans des trous de déplacement (14A, 14B) de la cartouche contenant le corps cylindrique (14). Même si un générateur haute tension (4) injecte une tension élevée à l'appareil d'enduction par pulvérisation, la cartouche du côté remplissage de peinture peut être isolée électriquement de l'appareil d'enduction par pulvérisation (2) ainsi que de la cartouche sur le côté apport de peinture. En outre, il est possible de déplacer les deux cartouches (15, 16) en alternance, afin de les utiliser à tour de rôle pour le processus d'enduction.
PCT/JP2005/022704 2004-12-22 2005-12-05 Appareil d'enduction par pulverisation electrostatique WO2006067983A1 (fr)

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JP2006515457A JPWO2006067983A1 (ja) 2004-12-22 2005-12-05 静電塗装装置

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JP2004-371655 2004-12-22
JP2004371655 2004-12-22

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WO2006067983A1 true WO2006067983A1 (fr) 2006-06-29

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JP2008168233A (ja) * 2007-01-12 2008-07-24 Honda Motor Co Ltd 静電塗装装置
JP2008538320A (ja) * 2005-04-13 2008-10-23 イリノイ トゥール ワークス インコーポレイティド スプレーコーティング塗布機システム
WO2008126765A1 (fr) * 2007-04-09 2008-10-23 Ransburg Industrial Finishing K.K. Robot d'application en revêtement électrostatique
EP2581136A1 (fr) * 2011-10-12 2013-04-17 LacTec GmbH Dispositif de transport pour liquides et installation de laquage
US9061292B2 (en) 2010-09-27 2015-06-23 Toyota Jidosha Kabushiki Kaisha Electrostatic coating gun
JP7483116B1 (ja) 2023-10-31 2024-05-14 アーベーベー・シュバイツ・アーゲー 塗装装置

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EP3799951B1 (fr) * 2019-10-01 2023-03-29 Dromont S.p.A. Machine de dosage pour distribuer des quantités mesurées de produits liquides, en particulier pour la préparation de peintures, vernis, colorants et similaires

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JP2008538320A (ja) * 2005-04-13 2008-10-23 イリノイ トゥール ワークス インコーポレイティド スプレーコーティング塗布機システム
US8931430B2 (en) 2005-04-13 2015-01-13 Finishing Brands Holdings Inc. Spray coating applicator system
JP2008168233A (ja) * 2007-01-12 2008-07-24 Honda Motor Co Ltd 静電塗装装置
WO2008126765A1 (fr) * 2007-04-09 2008-10-23 Ransburg Industrial Finishing K.K. Robot d'application en revêtement électrostatique
US9061292B2 (en) 2010-09-27 2015-06-23 Toyota Jidosha Kabushiki Kaisha Electrostatic coating gun
EP2581136A1 (fr) * 2011-10-12 2013-04-17 LacTec GmbH Dispositif de transport pour liquides et installation de laquage
JP7483116B1 (ja) 2023-10-31 2024-05-14 アーベーベー・シュバイツ・アーゲー 塗装装置

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