Abstract: A shield member (14) is provided on an outer peripheral side of a front surface section (9D) of a shaping air spurting member (9) and is formed of an annular body radially extending to shield electric flux lines traveling toward rotary atomizing head (4) from each of electrodes (6C) in an external electrode member (6). A tubular insulating member (15) formed of an insulating material covering an outer peripheral surface (9B) of the shaping air spurting member (9) is provided on an outer peripheral side of the shaping air spurting member (9). Further, a discharge buffering member (16) formed of an annular self-returning insulator or semi-conductive material is provided in a position where the shield member (14) is separated from the insulating member (15) between the shield member (14) and the insulating member (15).

Abstract: According to the present invention, an assembly suitability determination device determines suitability of assembly of a component to a paint device. The assembly suitability determination device includes an assembly suitability information recording unit, and an assembly suitability determination unit. The assembly suitability information recording unit records model information representing a model of the component and model information representing a model of a device-side component that receives the component on the paint device, and is suitable for the assembly of the component while associating the model information on the component with the model information on the device-side component. The assembly suitability determination unit determines the suitability of the assembly based on the model information on the component, the model information on the device-side component, and a recorded content of the assembly suitability information recording unit.

Abstract: The coating machine is provided with an air motor (3), a rotational shaft (4) that is rotatably supported by the air motor (3), a feed tube (5) that extends to a tip end of the rotational shaft (4) through the inside of the rotational shaft (4), a rotary atomizing head (6) that is mounted to the tip end of the rotational shaft (4), and a shaping air ring (7) that surrounds an outer periphery of the rotary atomizing head (6) and an axial tip end of which is arranged in back of a paint releasing edge (6D) of the rotary atomizing head (6). The shaping air ring (7) includes a great number of first shaping air spurting holes (9), and a great number of second shaping air spurting holes (10). An inner diameter dimension (d1) of the first shaping air spurting hole (9) is set to be larger than an inner diameter dimension (d2) of the second shaping air spurting hole (10). The number (N2) of the second shaping air spurting holes (10) is set to be smaller than the number (N1) of the first shaping air spurting holes (9).

Abstract: A shaping air spurting member (9) is formed in a tubular shape by using a conductive material, and is arranged on an outer peripheral side of a rotary atomizing head (4) in a state where a front end thereof is positioned in an intermediate section of the rotary atomizing head (4) in a length direction. The shaping air spurting member (9) has a front surface section (9D) that is provided with many numbers of air spurting holes (10, 12) for spurting shaping air toward paint particles sprayed from the rotary atomizing head (4). In addition, a shield member (14) composed of an annular body extending radially is provided on an outer diameter side of the front surface section (9D) in the shaping air spurting member (9) to shield electric flux lines traveling toward the rotary atomizing head (4) from each of electrodes (6C) in an external electrode member (6).

Abstract: An air motor, a rotary atomizing head provided on a front side of the air motor to be rotatable by the air motor, external electrode units provided in a periphery of the rotary atomizing head, and a high-voltage applying unit that applies a high voltage to the external electrode units to indirectly charge paint particles atomized from the rotary atomizing head with the high voltage. A film cover is provided to be formed with a resin material in a film shape for covering an outer peripheral side of the air motor. The film cover includes a cylindrical rear cover that covers the rear side from the external electrode units and a cylindrical front cover that is mounted to the front side of the rear cover to cover the front side from the external electrode units.

Abstract: A rotary atomizing head (4) is mounted on a front end side of an air motor (3). A shaping air ring (9) with air spout holes (10, 11) formed therein is provided on the rear side of the rotary atomizing head (4). The shaping air ring (9) is formed of a conductive material and is connected to ground. External electrode units (13) are provided in the periphery of the rotary atomizing head (4). A film cover (17) made of an insulating material is provided to cover an outer peripheral side of the air motor (3). A semi conductive member (21) is replaceably mounted to an adaptor (16) provided on an outer peripheral side of the shaping air ring (9). A rear end part (21B) of the semi conductive member (21) is made in contact with a front end part (19D) of the film cover (17). A front end part (21C) of the semi conductive member (21) is made in contact with the shaping air ring (9).

Abstract: A bearing air passage through which bearing air is supplied toward an air bearing of an air motor and a turbine air passage through which driving air is supplied toward a turbine are provided in a housing. An annular space surrounding the air motor is provided between the housing and a cover. A bearing air branch passage connecting the annular space and the bearing air passage to each other and a turbine air branch passage for connecting the annular space and the turbine air passage to each other are provided. The air branch passages lead a part of the compressed air to the annular space and keep the cover in a heated state.

Abstract: A rotary atomizing head (4) is mounted on a fore end side of a motor (3). A shaping air ring (9) having a plurality of air outlet holes (10) at fixed intervals is provided on a rear side of the rotary atomizing head (4). Outer surfaces of the air motor (3) and outer surfaces of the shaping air ring (9) are enshrouded over the entire circumference by a cover member (7) formed of an electrically insulating material. An external electrode assembly (13) is provided radially outwardly of the cover member (7). An annular projecting portion (16) which projects forward is provided on the shaping air ring (9) over the entire circumference. The air outlet holes (10) are open in a fore distal end of this annular projecting portion (16). As a result, a corona discharge can be generated by allowing an electric field to be concentrated at the fore distal end of the annular protecting portion (16).

Abstract: An annular gap space (18), into which a part of turbine air for driving a turbine (6) and exhaust air discharged from a rear thrust air bearing (12) flow out, is provided between an inner peripheral surface (5B) of a rotational shaft (5) and an outer peripheral surface (17B) of a feed tube (17). Air outflow holes (25) are provided in the rotational shaft (5) to be positioned between a radial air bearing (8) and a rotary atomizing head (16) and to be radially bored through the rotational shaft (5). As a result, the exhaust air flowing in the annular gap space (18) flows out outside of the rotational shaft (5) from the air outflow holes (25) in a position behind the rotary atomizing head (16).

Abstract: A rotary atomizing head (4) is mounted on a fore end side of a motor (3). A shaping air ring (9) having a plurality of air outlet holes (10) at fixed intervals is provided on a rear side of the rotary atomizing head (4). Outer surfaces of the air motor (3) and outer surfaces of the shaping air ring (9) are enshrouded over the entire circumference by a cover member (7) formed of an electrically insulating material. An external electrode assembly (13) is provided radially outwardly of the cover member (7). An annular projecting portion (16) which projects forward is provided on the shaping air ring (9) over the entire circumference. The air outlet holes (10) are open in a fore distal end of this annular projecting portion (16). As a result, a corona discharge can be generated by allowing an electric field to be concentrated at the fore distal end of the annular protecting portion (16).

Abstract: A current detection resistor is connected between an output terminal of a high voltage generator and an air motor. A coater current detector detects a coater current supplied to a coater based on a potential difference taking place on both terminals of the current detection resistor. The high-voltage control device serves to discriminate based on the coater current detected by the coater current detector whether the coater is caused to be close to a coating object. When it is discriminated that the coater is caused to be close to the coating object, the high-voltage control device outputs a shut-off signal for shutting off supply of the power supply voltage to the power supply voltage control device.

Abstract: A rotary atomizing head (7) is provided with an outer peripheral surface washing passage (14) open onto anatomizing head outer peripheral surface (13) for causing wash fluid supplied from a feed tube (6) to flow out into an annular clearance (20) between the rotary atomizing head (7) and a shaping air ring (15). An outflow opening (14C1) of an outflow passage (14C) constituting the outer peripheral surface washing passage (14) is provided in a position closer to the backside into the annular clearance (20) by a length dimension (L1) than a front end surface (17A) of a front ring section (17) constituting the shaping air ring (15). Further, the outflow opening (14C1) opens to the annular clearance (20) in an angle (?1) that is an acute angle to the atomizing head outer peripheral surface (13).

Abstract: A shaping air ring (10) is configured of a body (11), a cover (13) and a nozzle (15). A tapered conical protrusion (17) is provided in a front end of the nozzle (15) to abut on the cover (13) in contact therewith without a clearance therebetween. Numerous inclined recessed grooves (20) are provided on a forward tapered surfaces (17C) of the conical protrusion (17) over the entire periphery. Further, a first shaping air ejecting hole (23) is formed between each of the inclined recessed grooves (20) and an inner peripheral surface (13B2) of the cover (13) to eject shaping air toward a releasing edge (9E) of a rotary atomizing head (9). Second shaping air ejecting holes (24) are provided on an inner peripheral surface (16A) of the nozzle (15) to eject shaping air along an outer peripheral surface (9C) of the rotary atomizing head (9).

Abstract: A bearing air passage through which bearing air is supplied toward an air bearing of an air motor and a turbine air passage through which driving air is supplied toward a turbine are provided in a housing. An annular space surrounding the air motor is provided between the housing and a cover. A bearing air branch passage connecting the annular space and the bearing air passage to each other and a turbine air branch passage for connecting the annular space and the turbine air passage to each other are provided. The air branch passages lead a part of the compressed air to the annular space and keep the cover in a heated state.

Abstract: A feed tube is provided in a rotational shaft that is rotated by a motor. The feed tube includes a connecting member that includes a paint supplying port, a tube body including a base end connected to the connecting member and a front end that extends in the rotational shaft toward a rotary atomizing head, a positioning member provided in the front end of the tube body and including a tube positioning hole, and a paint tube including a base end connected to the paint supplying port of the connecting member and a front end inserted through the tube positioning hole of the positioning member. The paint tube is formed of a tubular body in an inside of which a paint passage is formed by using a resin material having water repellency.

Abstract: A bearing air passage through which bearing air is supplied toward an air bearing of an air motor and a turbine air passage through which driving air is supplied toward a turbine are provided in a housing. An annular space surrounding the air motor is provided between the housing and a cover. A bearing air branch passage connecting the annular space and the bearing air passage to each other and a turbine air branch passage for connecting the annular space and the turbine air passage to each other are provided. The air branch passages lead a part of the compressed air to the annular space and keep the cover in a heated state.

Abstract: A shaping air ring (10) is configured of a body (11), a cover (13) and a nozzle (15). A tapered conical protrusion (17) is provided in a front end of the nozzle (15) to abut on the cover (13) in contact therewith without a clearance therebetween. Numerous inclined recessed grooves (20) are provided on a forward tapered surfaces (17C) of the conical protrusion (17) over the entire periphery. Further, a first shaping air ejecting hole (23) is formed between each of the inclined recessed grooves (20) and an inner peripheral surface (13B2) of the cover (13) to eject shaping air toward a releasing edge (9E) of a rotary atomizing head (9). Second shaping air ejecting holes (24) are provided on an inner peripheral surface (16A) of the nozzle (15) to eject shaping air along an outer peripheral surface (9C) of the rotary atomizing head (9).

Abstract: A cartridge discharges paint in a paint chamber from a feed tube by displacing a piston in a tank. A waste liquid adjusting valve located on a downstream side of a waste liquid passage on-off valve and including a throttle passage is provided in a waste liquid passage to be connected to the feed tube. This waste liquid adjusting valve is opened at the time of washing clean the paint chamber and a paint supply passage of the feed tube to widely enlarge the passage cross-sectional area of the waste liquid passage. When paint is replenished into the paint supply passage, the waste liquid adjusting valve uses the throttle passage as a flow passage to narrowly throttle the passage cross-sectional area of the waste liquid passage. The amount of discarded paint which flows out from the feed tube is thereby reduced.

Abstract: An annular gap space (18), into which a part of turbine air for driving a turbine (6) and exhaust air discharged from a rear thrust air bearing (12) flow out, is provided between an inner peripheral surface (5B) of a rotational shaft (5) and an outer peripheral surface (17B) of a feed tube (17). Air outflow holes (25) are provided in the rotational shaft (5) to be positioned between a radial air bearing (8) and a rotary atomizing head (16) and to be radially bored through the rotational shaft (5). As a result, the exhaust air flowing in the annular gap space (18) flows out outside of the rotational shaft (5) from the air outflow holes (25) in a position behind the rotary atomizing head (16).

Abstract: A rotary atomizing head (4) is mounted on a fore end side of a motor (3). A shaping air ring (9) having a plurality of air outlet holes (10) at fixed intervals is provided on a rear side of the rotary atomizing head (4). Outer surfaces of the air motor (3) and outer surfaces of the shaping air ring (9) are enshrouded over the entire circumference by a cover member (7) formed of an electrically insulating material. An external electrode assembly (13) is provided radially outwardly of the cover member (7). An annular projecting portion (16) which projects forward is provided on the shaping air ring (9) over the entire circumference. The air outlet holes (10) are open in a fore distal end of this annular projecting portion (16). As a result, a corona discharge can be generated by allowing an electric field to be concentrated at the fore distal end of the annular protecting portion (16).