WO2009154056A1 - 回転霧化頭型塗装装置 - Google Patents
回転霧化頭型塗装装置 Download PDFInfo
- Publication number
- WO2009154056A1 WO2009154056A1 PCT/JP2009/059353 JP2009059353W WO2009154056A1 WO 2009154056 A1 WO2009154056 A1 WO 2009154056A1 JP 2009059353 W JP2009059353 W JP 2009059353W WO 2009154056 A1 WO2009154056 A1 WO 2009154056A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- atomizing head
- rotary
- rotary atomizing
- shaft
- mounting
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1035—Driving means; Parts thereof, e.g. turbine, shaft, bearings
- B05B3/1042—Means for connecting, e.g. reversibly, the rotating spray member to its driving shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1064—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces the liquid or other fluent material to be sprayed being axially supplied to the rotating member through a hollow rotating shaft
-
- 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
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
- B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
- B05B5/0407—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/076—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D1/108—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling
Definitions
- the present invention relates to a rotary atomizing head type coating apparatus suitable for use in coating a substrate such as a car body of an automobile.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-248382
- Patent Document 2 Specially Japanese Patent Publication Nos. 4-71,656,
- Patent Document 3 US Patent Application Publication No. 2003/0075617
- Patent Document 4 Japanese Patent Application Publication No. 8-503416
- Patent Document 5 Japanese Patent Application Publication No. 11-28391).
- Patent Documents 1 to 3 disclose a configuration in which a rotary atomizing head is attached to the tip of a rotary shaft rotated by an air motor, for example.
- a mounting shaft portion having a male screw is formed at the tip of the rotary shaft, and a mounting cylinder portion having a female screw is formed on the rear side of the rotary atomizing head. Then, the rotary atomizing head is attached to the rotary shaft by screwing the female screw of the mounting cylinder portion with the male screw of the mounting shaft portion.
- Patent Document 4 as a mechanism for attaching a rotary atomizing head to a rotary shaft, an annular elastic connecting member provided with a plurality of fitting rings along the circumference on the rear side of the rotary atomizing head is provided.
- tip of each fitting ring is disclosed.
- the distal end of the elastic connection member is expanded in the radial direction by the centrifugal force, and the fastening force between the rotary atomizing head and the rotation shaft is increased. Be put together.
- Patent Document 5 as a mechanism for attaching the rotary atomizing head to the rotary shaft, an annular groove is provided on the inner peripheral surface of the mounting cylindrical portion of the rotary atomizing head and O on the outer peripheral surface of the rotary shaft mounting shaft portion.
- a configuration is disclosed that provides a ring and engages the O-ring in the annular groove.
- FIG. 8 and the like of Patent Document 5 a taper portion which is gradually reduced in diameter toward the tip end is provided on the attachment shaft portion of the rotation shaft, and the attachment cylindrical portion of the rotary atomizing head is inclined at the taper portion.
- an inclined inner circumferential surface whose diameter is gradually increased toward the opening side corresponding to the outer circumferential surface is provided. In this case, by pressing the inclined inner peripheral surface of the rotary atomizing head against the inclined inner peripheral surface of the rotation axis, these rotation centers are automatically aligned.
- the rotary atomizing head is used for the motor to prevent the rotary atomizing head from falling off by the rotation of the motor.
- the screw is configured to be tightened by rotating in the direction opposite to the rotating direction.
- the rotational torque acts in the direction in which the fastening force between the rotary atomizing head and the rotary shaft is increased by the inertia force.
- the rotational torque acts in the direction in which the fastening force between the rotary atomizing head and the rotational shaft decreases. For this reason, when the motor rotational speed is rapidly reduced during coating, or when the motor is urgently stopped due to a defect, the screw may be loosened and the rotary atomizing head may fall off the rotary shaft.
- Patent Documents 2 and 3 disclose a mechanism for preventing the rotation of the rotation shaft by inserting a rod-shaped lock member from the outside into a lock hole provided in the rotation shaft.
- an anti-rotation mechanism is also complicated in structure, and becomes a factor that hinders the miniaturization and cost reduction of the coating apparatus.
- Patent Document 4 discloses a mechanism for attaching a rotary atomizing head to a rotary shaft by providing an elastic connecting member on the rotary atomizing head and engaging a convex portion of the elastic connecting member with a groove of the rotary shaft. It is disclosed. However, in the invention of Patent Document 4, the rotational displacement of the rotary atomizing head with respect to the rotary shaft is not taken into consideration. In addition to this, the fastening point of the rotary shaft and the rotary atomizing head is limited between the convex portion of the elastic connecting member and the groove of the rotary shaft.
- the rotary atomizing head can not be stably fixed to the rotary axis, and the central axis of the rotary axis and the central axis of the rotary atomizing head do not coincide There is a possibility that it rotates in the state where it is shifted. In this case, since the rotating shaft is rotatably supported by the air bearing of the air motor, the rotating shaft and the air bearing may come in contact with each other and be damaged.
- the inclined inner peripheral surface of the rotary atomizing head is inclined on the inner peripheral surface of the rotary shaft by engaging an O-ring provided on the outer peripheral side of the rotary shaft with the annular groove of the rotary atomizing head A configuration is disclosed that presses against a surface.
- the rotational displacement of the rotary atomizing head with respect to the rotary shaft is not considered.
- the present invention has been made in view of the problems of the prior art described above, and an object of the present invention is to be able to mount a rotary atomizing head on a rotary shaft without using screwing of screws, and to increase or decrease the number of rotations. It is an object of the present invention to provide a rotary atomizing head type coating apparatus capable of preventing rotational displacement of the rotary atomizing head with respect to the rotary axis even if
- a rotary shaft which is rotated by a motor and has a tip end side as a mounting shaft portion, a front side is formed in a bell or cup shape, and a rear side is a mounting shaft portion of the rotary shaft.
- the present invention is applied to a rotary atomizing head type coating apparatus provided with a rotary atomizing head as a mounting cylinder portion attached to the outer peripheral side.
- the rotary atomizing head rotates in the circumferential direction with respect to the rotary shaft between the mount shaft portion of the rotary shaft and the mount cylinder portion of the rotary atomizing head
- a rotation restricting mechanism for restricting the rotation of the rotary atomizing head comprising a male spline comprising a plurality of meshing teeth provided on the outer peripheral side of the mounting shaft portion of the rotary shaft and extending in the axial direction;
- the female spline is provided on the inner peripheral side of the mounting cylinder and extends in the axial direction, and the female teeth are formed by a plurality of meshing teeth with which the meshing teeth mesh.
- the rotation restricting mechanism is provided between the mounting shaft portion of the rotary shaft and the mounting cylinder portion of the rotary atomizing head, so that the rotation restricting mechanism is between the rotary atomizing head and the rotary shaft. It is possible to regulate the occurrence of rotational deviation. Therefore, the rotary atomizing head rotates integrally with the rotary shaft regardless of the increase or decrease of the rotational speed, so that the rotary atomizing head can be stably fixed to the rotary shaft. As a result, the central axis of the rotary shaft and the central axis of the rotary atomizing head can be kept in alignment, and damage to the rotary shaft and the like can be prevented, and reliability and durability can be enhanced.
- the rotary atomizing head rotates integrally with the rotary shaft, so that the following delay between the rotary shaft and the rotary atomizing head can be eliminated. Therefore, for example, when the coating operation is performed while changing the number of rotations of the rotating shaft, the paint particles can be made to have a desired size promptly according to the change in the number of rotations, and the coating quality can be improved.
- the rotation restricting mechanism is constituted by the male spline provided on the outer peripheral side of the mounting shaft portion of the rotary shaft and the female spline provided on the inner peripheral side of the mounting cylindrical portion of the rotary atomizing head, the male spline
- the rotary atomizing head can be attached to the rotary shaft by combining the two with the female spline. For this reason, since the rotary atomizing head can be attached to the rotary shaft without using screwing of the screw, for example, even when the number of revolutions of the motor is sharply reduced, the rotary atomizing head can be It is possible to increase the mounting stability of the rotary atomizing head with respect to the rotary shaft without falling off.
- the axial displacement regulation which regulates the displacement of the rotary atomizing head in the axial direction with respect to the rotary shaft between the mount shaft portion of the rotary shaft and the mount cylinder portion of the rotary atomizing head.
- a mechanism is provided.
- the axial displacement control mechanism may be configured to use an axial frictional resistance generated between the meshing teeth of the male spline and the meshing teeth of the female spline.
- the male spline and the female spline can have two functions of the rotation restricting mechanism and the axial displacement restricting mechanism.
- the mounting shaft portion of the rotating shaft and the mounting cylinder portion of the rotary atomizing head can be miniaturized.
- the axial displacement restricting mechanism may be constituted by an elastic ring provided on either one of the mounting shaft portion of the rotary shaft and the mounting cylinder portion of the rotary atomizing head.
- the elastic ring when the elastic ring is provided on the mounting shaft portion of the rotary shaft, the elastic ring is elastically brought into contact with the inner peripheral surface of the mounting cylindrical portion of the rotary atomizing head to rotate the rotary atomization with respect to the rotary shaft Axial displacement of the head can be prevented.
- the axial direction displacement restricting mechanism may be configured by first and second magnetic members provided respectively on the mounting shaft portion of the rotary shaft and the mounting cylinder portion of the rotary atomizing head. At this time, since the first and second magnetic members attract each other by the magnetic force, the first and second magnetic members are used to prevent axial displacement of the rotary atomizing head with respect to the rotation axis. Can.
- the axial displacement restricting mechanism includes an engaging member provided on the outer peripheral side of the mounting shaft portion of the rotary shaft and capable of being displaced radially outward, and the inside of the mounting cylindrical portion of the rotary atomizing head. It comprises a fitting groove provided on the circumferential side and extending in the circumferential direction and into which the engaging member enters and fits.
- the inner circumferential surface of the rotary atomizing head is placed between the mounting shaft portion of the rotary shaft and the mounting tube portion of the rotary atomizing head.
- An axis alignment mechanism is provided which is pressed toward the outer peripheral surface to align the central axis of the rotary atomizing head with the central axis of the rotational axis.
- the centering mechanism is, for example, the center of the rotary atomizing head by pressing the inner peripheral surface of the rotary atomizing head toward the outer peripheral surface of the rotary shaft using centrifugal force by the rotation.
- the axis can be aligned with the central axis of the rotation axis.
- an inclined outer peripheral surface is provided on the outer peripheral surface of the mounting shaft portion of the rotary shaft, and an inner peripheral surface of the mounting cylindrical portion of the rotary atomizing head is provided with an inclined inner peripheral surface corresponding to the inclined outer peripheral surface.
- the inclined inner peripheral surface of the rotary atomizing head is brought into contact with the inclined outer peripheral surface of the rotary shaft by urging the rotary atomizing head toward the proximal end side of the rotary shaft in the axial direction.
- the central axis of the developing head can be made to coincide with the central axis of the rotation axis.
- the alignment mechanism is constituted by a sloped groove bottom surface provided on the bottom side of the fitting groove and having a groove depth dimension shallowing from the back side to the opening side of the mounting cylinder portion. .
- the rotary atomizing head can be biased toward the proximal end side of the rotation shaft by the component force generated at the contact point between the engaging member and the inclined groove bottom surface.
- the inner peripheral surface of the rotary atomizing head can be biased toward the outer peripheral surface of the rotary shaft, and the central axis of the rotary atomizing head can be aligned with the central axis of the rotary shaft.
- a spring member that biases radially outward may be attached to the engaging member.
- the tip of the engagement member can be made to enter the fitting groove regardless of whether the rotation shaft is rotating or not. Accordingly, when the rotary atomizing head is attached to the rotary shaft, the engaging member can be reliably fitted in the fitting groove, and the rotary atomizing head can be fixed in a retaining state.
- the engaging member and the fitting groove may be configured to attract each other by a magnetic force. At this time, the engagement member can be moved toward the fitting groove by the magnetic force. For this reason, regardless of whether or not the rotation shaft is rotating, the tip of the engagement member can be made to enter the fitting groove. Accordingly, when the rotary atomizing head is attached to the rotary shaft, the engaging member can be reliably fitted in the fitting groove, and the rotary atomizing head can be fixed in a retaining state.
- the engagement member may be constituted by an engagement protrusion whose tip is provided so as to be able to project from the mounting shaft portion of the rotation shaft. At this time, when the tip of the engagement projection enters the engagement groove, the engagement projection and the engagement groove can be engaged.
- the engaging member may be constituted by an engaging ball whose part is provided so as to be able to project from the mounting shaft portion of the rotating shaft. At this time, when the protruding portion of the engaging sphere enters the fitting groove, the engaging protrusion and the fitting groove can be engaged.
- the rotary atomizing head rotates in the circumferential direction with respect to the rotary shaft between the mount shaft portion of the rotary shaft and the mount cylinder portion of the rotary atomizing head
- the rotary atomizing head is axially displaced relative to the rotary shaft between the mount shaft portion of the rotary shaft and the mount cylinder portion of the rotary atomizing head.
- An axial displacement restricting mechanism for restricting is provided, and the rotation restricting mechanism and the axial displacement restricting mechanism are provided on the outer peripheral side of the mounting shaft portion of the rotary shaft and can be displaced radially outward.
- the rotation restricting mechanism is provided between the mounting shaft portion of the rotary shaft and the mounting cylinder portion of the rotary atomizing head, so that the rotation restricting mechanism is between the rotary atomizing head and the rotary shaft. It is possible to regulate the occurrence of rotational deviation. Therefore, the rotary atomizing head rotates integrally with the rotary shaft regardless of the increase or decrease of the rotational speed, so that the rotary atomizing head can be stably fixed to the rotary shaft and the rotary atomizing head can be rotated. It is possible to eliminate the following delay between the shaft and the rotary atomizing head.
- the rotation restricting mechanism and the axial displacement restricting mechanism are a plurality of engaging members provided on the outer peripheral side of the mounting shaft portion of the rotary shaft, and a plurality provided in a row on the inner peripheral side of the mounting cylindrical portion of the rotary atomizing head. And a fitting portion consisting of independent recesses.
- the rotary atomizing head can be attached to the rotary shaft by fitting the engaging member to the independent recess of the fitting portion. Therefore, the rotary atomizing head can be attached to the rotary shaft without using screwing, and the mounting stability of the rotary atomizing head to the rotary shaft can be enhanced.
- the engagement member and the fitting portion are configured to prevent the rotary atomizing head from being displaced in the axial direction and the circumferential direction with respect to the rotation axis by the engagement member entering the independent recess of the fitting portion.
- And can have two functions of a rotation restriction mechanism and an axial displacement restriction mechanism. For this reason, compared with the case where the rotation restricting mechanism and the axial displacement restricting mechanism are separately formed, the mounting shaft portion of the rotating shaft and the mounting cylinder portion of the rotary atomizing head can be miniaturized.
- the inner circumferential surface of the rotary atomizing head is placed between the mounting shaft portion of the rotary shaft and the mounting tube portion of the rotary atomizing head.
- An axis alignment mechanism is provided which is pressed toward the outer peripheral surface to align the central axis of the rotary atomizing head with the central axis of the rotational axis.
- the alignment mechanism can be aligned with the central axis of the rotary axis by pressing the inner peripheral surface of the rotary atomizing head towards the outer peripheral surface of the rotary shaft.
- the alignment mechanism is constituted by an inclined bottom surface provided on the bottom side of the independent concave portion of the fitting portion and having a depth dimension shallower from the back side to the opening side of the mounting cylindrical portion There is.
- the tip of the engaging member abuts on the inclined bottom surface of the independent recess.
- the rotary atomizing head can be biased toward the proximal end side of the rotation shaft by a component force generated at the contact point with the inclined bottom surface.
- the inner peripheral surface of the rotary atomizing head can be pressed toward the outer peripheral surface of the rotary shaft, and the central axis of the rotary atomizing head can be aligned with the central axis of the rotary shaft.
- the feature of the configuration adopted by the present invention is that the rotary atomizing head rotates in the circumferential direction with respect to the rotary shaft between the mount shaft portion of the rotary shaft and the mount cylinder portion of the rotary atomizing head The rotary atomizing head is axially displaced relative to the rotary shaft between the mount shaft portion of the rotary shaft and the mount cylinder portion of the rotary atomizing head.
- an axial displacement restricting mechanism for restricting, the rotation restricting mechanism and the axial displacement restricting mechanism are provided on the outer peripheral side of the mounting shaft portion of the rotary shaft, and the distal end side is a free end and the arm can be bent and deformed radially Portion, claw portions provided at the tip of the arm portion and protruding radially outward, and a plurality of independent concave portions arranged in a row on the inner peripheral side of the mounting cylinder portion of the rotary atomizing head
- the claw part is constituted by the fitting part fitted in the state fixed to the axial direction and the circumferential direction In the door.
- the rotary atomizing head rotates integrally with the rotary shaft regardless of the increase or decrease of the rotational speed, so that the rotary atomizing head can be stably fixed to the rotary shaft and the rotary atomizing head can be rotated. It is possible to eliminate the following delay between the shaft and the rotary atomizing head.
- an axial displacement restriction mechanism is provided between the mounting shaft portion of the rotary shaft and the mounting cylinder portion of the rotary atomizing head, the rotary atomizing head is rotated relative to the rotary shaft using the axial displacement restriction mechanism.
- the axial displacement can be restricted, and the falling off of the rotary atomizing head can be reliably prevented.
- the rotation restricting mechanism and the axial displacement restricting mechanism include an arm provided on the outer peripheral side of the attachment shaft of the rotary shaft, a claw provided at the tip of the arm, and a mounting cylinder for the rotary atomizing head.
- the rotary atomizing head is mounted on the rotary shaft by fitting the claw portion to the independent recess of the fitting portion, since the fitting portion is composed of a plurality of independent recesses arranged in a row on the inner peripheral side of the portion. It can be installed. Therefore, the rotary atomizing head can be attached to the rotary shaft without using screwing, and the mounting stability of the rotary atomizing head to the rotary shaft can be enhanced.
- the claw portion and the fitting portion rotate since the claw portion enters the independent concave portion of the fitting portion so as to restrict displacement of the rotary atomizing head in the axial direction and the circumferential direction with respect to the rotation axis. It can have two functions of a regulating mechanism and an axial displacement regulating mechanism. For this reason, compared with the case where the rotation restricting mechanism and the axial displacement restricting mechanism are separately formed, the mounting shaft portion of the rotating shaft and the mounting cylinder portion of the rotary atomizing head can be miniaturized.
- the inner circumferential surface of the rotary atomizing head is placed between the mounting shaft portion of the rotary shaft and the mounting tube portion of the rotary atomizing head.
- An axis alignment mechanism is provided which is pressed toward the outer peripheral surface to align the central axis of the rotary atomizing head with the central axis of the rotational axis.
- the alignment mechanism can be aligned with the central axis of the rotary axis by pressing the inner peripheral surface of the rotary atomizing head towards the outer peripheral surface of the rotary shaft.
- the alignment mechanism is constituted by an inclined surface which is provided inside the independent recess of the fitting portion and which has a shallow depth dimension from the back to the opening of the mounting cylinder. .
- the tips of the claws abut against the inclined surfaces of the independent recesses, so that the rotary atomization is performed by the claws
- the head can be pulled proximal to the axis of rotation.
- the inner peripheral surface of the rotary atomizing head can be pressed toward the outer peripheral surface of the rotary shaft, and the central axis of the rotary atomizing head can be aligned with the central axis of the rotary shaft.
- FIG. 1 is a longitudinal sectional view showing a rotary atomizing head type coating apparatus according to a first embodiment. It is a longitudinal cross-sectional view which shows the rotating shaft in FIG. 1, and a rotating atomization head.
- FIG. 3 is a cross-sectional view of the rotation restricting mechanism as viewed in the direction of arrows III-III in FIG. 2; It is an expanded sectional view of a part in FIG. 2 which expands and shows a rotation control mechanism. It is a longitudinal cross-sectional view which shows the rotating shaft by 2nd Embodiment, and a rotating atomization head.
- FIG. 6 is a cross-sectional view of the rotation restricting mechanism as viewed in the direction of arrows VI-VI in FIG.
- FIG. 5 It is an expanded sectional view of b section in FIG. 5 which expands and shows a rotation control mechanism. It is a principal part expanded sectional view of the same position as Drawing 4 which expands and shows a rotation control mechanism by a 3rd embodiment. It is a principal part expanded sectional view of the same position as Drawing 4 which expands and shows a rotation control mechanism by a 4th embodiment. It is a longitudinal cross-sectional view which shows the rotating shaft and rotary atomizing head by 5th embodiment.
- FIG. 11 is a cross-sectional view of the rotation restricting mechanism as viewed in the direction of arrows XI-XI in FIG. It is a principal part expanded sectional view of c part in FIG. 10 which expands and shows a rotation control mechanism.
- FIG. 15 is a cross-sectional view of the rotation restricting mechanism as viewed in the direction of arrows XV-XV in FIG. 14; It is an expanded sectional view of d part in FIG. 14 which expands and shows a rotation control mechanism. It is a principal part expanded sectional view of the same position as Drawing 16 which expands and shows a rotation control mechanism in the state where a rotating shaft rotated.
- FIG. 18 is a longitudinal sectional view showing a rotary shaft and a rotary atomizing head according to an eighth embodiment.
- FIG. 20 is an enlarged sectional view of a portion e in FIG. 19 showing the rotation restricting mechanism in an enlarged manner.
- It is a principal part expanded sectional view of the same position as Drawing 20 which expands and shows a rotation control mechanism by the 1st modification.
- It is a principal part expanded sectional view of the same position as Drawing 20 which expands and shows a rotation control mechanism by the 2nd modification.
- FIG. 24 is a cross-sectional view of the rotation restricting mechanism as viewed in the direction of arrows XXIV-XXIV in FIG. 23. It is an expanded sectional view of the f section in FIG. 23 which expands and shows a rotation control mechanism. It is a principal part expanded sectional view of the position similar to FIG. 25 which expands and shows the rotation control mechanism of the state which the rotating shaft rotated. It is a principal part expanded sectional view of the same position as Drawing 25 which expands and shows a rotation control mechanism by the 3rd modification.
- FIG. 30 is a cross-sectional view of the rotation restricting mechanism as seen from the direction of arrows XXX-XXX in FIG. 29.
- FIG. 30 is an enlarged cross-sectional view of a portion g in FIG. 29 showing the rotation restricting mechanism in an enlarged manner.
- It is a principal part expanded sectional view of the position similar to FIG. 31 which expands and shows the rotation control mechanism of the state in the middle of the state which attaches a rotation atomization head to a rotating shaft.
- It is a principal part expanded sectional view of the position similar to FIG. 31 which expands and shows the rotation control mechanism of the state which removed the rotation atomization head from the rotating shaft.
- Rotating atomizing head type coating device 13
- Air motor (motor) 14
- rotary shaft 15 mounting shaft portion 15C inclined outer peripheral surface 21
- rotary atomizing head 24 mounting cylindrical portion 24C inclined inner peripheral surface 25, 31, 41, 51, 61, 71, 81, 91, 101, 101 ′, 101 ′ ′, 111
- Rotation control mechanism 26, 32, 42, 52, 62, 72, 82, 92
- FIGS. 1 to 4 show a first embodiment of the present invention.
- a cartridge type rotary atomizing head type coating apparatus will be described by way of example by replacing and mounting a cartridge filled with paint for each color.
- Reference numeral 1 denotes, for example, a rotary atomizing head type coating apparatus (hereinafter referred to as a coating apparatus 1) provided at the tip of an arm (not shown) of a coating robot.
- the coating apparatus 1 is roughly configured by a housing 2, a cartridge 9, an air motor 13, a rotating shaft 14, a rotating atomizing head 21 and the like described later.
- Reference numeral 2 denotes a housing attached to the tip of the arm of the coating robot.
- the motor mounting portion 3 is formed on the front side of the housing 2 and the cartridge mounting portion 4 is formed on the rear side. Further, on the bottom 4A of the cartridge mounting portion 4, a female connection portion 4B or the like which forms a connection portion of the extrusion thinner is formed.
- a feed tube insertion hole 5 is formed in the housing 2 so as to extend in the axial direction so as to pass through the center position of each of the attachment portions 3 and 4.
- a shaping air ring 6 is attached to the front of the housing 2. The shaping air ring 6 ejects shaping air for controlling a spray pattern or the like of the paint sprayed from a rotary atomizing head 21 described later.
- Reference numeral 7 denotes a plurality of air passages provided in the housing 2 and connected to a control air source (not shown).
- the air passages 7 supply turbine air, bearing air, brake air, shaping air for forming a spray pattern of paint, etc., for controlling an air motor 13 described later. In the present embodiment, only one air passage is representatively shown.
- Reference numeral 8 denotes a housing side extrusion thinner passage provided in the housing 2. One end of the extruding thinner passage 8 is connected to an extruding thinner supply / discharge valve (not shown), and the other end is opened at the bottom of the female connection portion 4 B of the cartridge mounting portion 4.
- Reference numeral 9 denotes a coating cartridge for supplying paint to the rotary atomizing head 21.
- the cartridges 9 are prepared for each paint color by separately storing paint of a color, b color,... N color, and are mounted exchangeably on the cartridge mounting portion 4 of the housing 2.
- the cartridge 9 is provided with a cylinder 10 formed as a cylindrical body (cylinder) extending forward and backward with the axis OO, and coaxially extending from the cylinder 10 in the axial direction, that is, coaxially with the axis OO
- the paint tube 12 which forms the paint nozzle, the paint valve 12 (only the tip of the valve body is shown in FIG. 2) for communicating and blocking the paint passage 11A in the feed tube 11, It is roughly configured by a piston (not shown) and the like which are defined in the extrusion thinner accommodation chamber.
- a male connection portion 10A connected to the female connection portion 4B of the cartridge mounting portion 4 provided in the housing 2 is provided in a protruding manner.
- the cylinder 10 is provided with a cartridge side pushing thinner passage (not shown) extending from the male connection portion 10A to the pushing thinner accommodating chamber and is in communication with the housing side pushing thinner passage 8.
- the inside of the feed tube 11 is a paint passage 11A, and the paint passage 11A communicates with the paint storage chamber in the cylinder 10.
- the feed tube 11 discharges the paint in the paint chamber toward the rotary atomizing head 21 in a state of being inserted into the feed tube insertion hole 5 of the housing 2.
- the piston is pushed by the extrusion thinner being supplied to the extrusion thinner accommodation chamber of the cylinder 10, and the paint in the paint accommodation chamber is made to flow out to the paint passage 11A of the feed tube 11.
- An air motor (motor) 13 is accommodated in the motor mounting portion 3 of the housing 2.
- the air motor 13 is generally formed by a cylindrical motor casing 13A, an air turbine 13B accommodated in the motor casing 13A, and a static pressure air bearing 13C rotatably supporting a rotating shaft 14 described later. It is configured.
- the air motor 13 rotationally drives the rotating shaft 14 at high speed (for example, 3000 to 150000 rpm) by supplying compressed air to the air turbine 13B.
- a high voltage generator (not shown) is connected to the air motor 13, and the high voltage generator applies a high voltage of, for example, -60 to -150 kV to the air motor 13, and this high voltage is subjected to rotational atomization described later.
- the paint is charged directly through the head 21.
- a rotary shaft 14 is rotatably supported by a static pressure air bearing 13C of the air motor 13.
- the rotary shaft 14 is formed as a hollow cylindrical shaft extending in the front and rear directions with the axis OO.
- the proximal end side of the rotary shaft 14 is attached to the air turbine 13B of the air motor 13, and the distal end side of the rotary shaft 14 protrudes to the front side of the air motor 13, and a rotary atomizing head 21 described later is mounted.
- Reference numeral 15 denotes a mounting shaft portion provided forward from the stepped portion 14A on the tip end side of the rotary shaft 14.
- the mounting shaft portion 15 is formed in a cylindrical shape having a diameter smaller than that of the rotary shaft 14 and extending in the axial direction, and is located on the distal end side of the cylindrical portion 15A toward the distal end side of the rotary shaft 14 It is comprised from the taper part 15B which diameter-reduced gradually.
- a step portion 14A in the radial direction is formed on the tip end side of the rotating shaft 14, and the tip end side of the step portion 14A is the mounting shaft portion 15.
- a male spline member 26 which will be described later, is provided at the step portion 14A.
- the inclined outer peripheral surface 15C of the tapered portion 15B is formed to be inclined toward an axis OO, which is the rotation center of the rotation shaft 14.
- the below-mentioned rotary atomization head 21 is attached to the attachment axial part 15. As shown in FIG.
- Reference numeral 21 denotes a rotary atomizing head attached to the tip of the rotary shaft 14.
- the rotary atomizing head 21 is constituted by an atomizing head main body 22 and a hub member 23 described later.
- Reference numeral 22 denotes an atomizing head main body which forms the outer shape of the rotary atomizing head 21.
- the atomizing head body 22 is formed of, for example, a conductive metal material such as iron, stainless steel, or aluminum alloy, a conductive resin material, etc., and is directed from the rear side to the front side with the axis OO as the rotation center. It is formed in an expanding bell or cup shape.
- the front side of the inner peripheral surface of the atomizing head main body 22 is a paint film-thinned surface 22A which spreads in a circular plate shape.
- the front end (peripheral end) of the atomizing head body 22 is a discharge end 22B continuous with the paint film thinning surface 22A.
- the rear side of the atomizing head body 22 has a cylindrical shape and is a mounting cylinder portion 24 described later.
- an annular partition wall 22C is formed so as to project radially inward so as to close the back portion of the mounting cylindrical portion 24.
- the feed tube 11 is formed on the inner peripheral side of the annular partition wall 22C. The tip of the is inserted.
- the atomizing head main body 22 is provided with a paint reservoir 22D defined by a hub member 23 described later between the annular partition wall 22C and the paint film thinning surface 22A.
- the paint reservoir 22D is a space for temporarily storing the paint discharged from the feed tube 11.
- the atomizing head main body 22 When the paint is supplied to the paint reservoir 22D while the rotary atomizing head 21 is rotating at a high speed, the atomizing head main body 22 has the paint film-thinned surface through the paint outflow passage 23A described later. After being supplied to 22A and thinned with the paint film-thinned surface 22A, the paint is sprayed while being atomized from the emission edge 22B.
- a disk-like hub member 23 is provided between the paint film-thinned surface 22A of the atomizing head body 22 and the paint reservoir 22D.
- the hub member 23 is provided on the outer peripheral side with a large number of paint outflow passages 23A for guiding the paint and the solvent to the paint film thinning surface 22A of the atomizing head main body 22.
- Reference numeral 24 denotes a mounting cylinder provided on the rear side of the atomizing head body 22.
- a fitting hole 24A with a bottom is provided on the inner peripheral side of the mounting cylindrical portion 24.
- a circular bottom surface 24B is formed by the annular partition wall 22C.
- an inclined inner circumferential surface 24C which is gradually diameter-expanded from the bottom surface 24B toward the opening side (rear side) is formed.
- the inclined inner peripheral surface 24 C is inclined toward the axis line OO, which is the rotation center of the atomizing head body 22, and is formed corresponding to the inclined outer peripheral surface 15 C of the mounting shaft portion 15.
- the mounting cylinder part 24 is attached to the outer peripheral side of the mounting axial part 15 in the state which accommodated the taper part 15B in fitting hole 24A.
- a female spline fitting portion 24D which is located on the opening side and is formed of a large diameter circumferential groove is formed.
- the female spline fitting portion 24D is provided with a female spline member 27 described later.
- reference numeral 25 denotes a rotation restricting mechanism provided between the mounting shaft 15 of the rotary shaft 14 and the mounting cylinder 24 of the rotary atomizing head 21.
- the rotation restricting mechanism 25 restricts the rotation of the rotary atomizing head 21 in the circumferential direction with respect to the rotating shaft 14.
- the rotation restricting mechanism 25 is configured by a male spline member 26 and a female spline member 27 which will be described later.
- a male spline member 26 is provided on the cylindrical portion 15A of the mounting shaft portion 15 adjacent to the stepped portion 14A of the rotary shaft 14.
- the male spline member 26 is formed in the shape of a cross section gear that protrudes outward in the radial direction from the outer peripheral surface of the cylindrical portion 15A.
- the male spline member 26 is configured by a plurality of meshing teeth 26 ⁇ / b> A having, for example, a triangular cross section, provided on the outer peripheral side of the mounting shaft portion 15.
- the meshing teeth 26A extend in the axial direction in parallel with the axis OO, and are arranged at equal intervals in the circumferential direction all around the rotation shaft 14.
- the male spline member 26 covers the entire outer peripheral surface of the attachment shaft portion 15 on the proximal end side.
- the male spline member 26 is formed as an annular body of, for example, an elastically deformable resin material, rubber material, etc. It is formed. That is, the male spline member 26 is an annular body in which the meshing teeth 26A are formed on the entire outer circumference side.
- the male spline member 26 is fitted to the cylindrical portion 15A of the mounting shaft portion 15 and the step portion 14A of the rotating shaft 14, and is fixed by, for example, an adhesive.
- Reference numeral 27 denotes a female spline member provided in the female spline fitting portion 24D of the mounting cylindrical portion 24 of the rotary atomizing head 21.
- the female spline member 27 is formed in the shape of a cross section gear that protrudes radially inward from the inner peripheral surface of the mounting cylindrical portion 24.
- the female spline member 27 is formed of, for example, a plurality of meshing teeth 27A provided on the inner peripheral side of the mounting cylindrical portion 24 and having a triangular cross section.
- the meshing teeth 27A extend in the axial direction in parallel with the axis OO, and at equal intervals in the circumferential direction along the entire circumference of the fitting hole 24A corresponding to the meshing teeth 26A. It is arranged.
- the female spline member 27 covers the entire inner peripheral surface of the mounting cylinder 24 on the opening side of the fitting hole 24A.
- the female spline member 27 is annularly formed of, for example, a metal material such as iron or stainless steel, a hard resin material or the like separately from the rotary atomizing head 21. That is, the female spline member 27 is an annular body in which the meshing teeth 27A are formed on the entire inner circumference side.
- the female spline member 27 is fixed to the female spline fitting portion 24A of the mounting cylindrical portion 24 by means such as press fitting or bonding.
- the female spline member 27 may be formed integrally with the mounting cylindrical portion 24 by using a member of the mounting cylindrical portion 24 of the rotary atomizing head 21.
- the meshing teeth 27A of the female spline member 27 are inserted into the grooves between the meshing teeth 26A of the male spline member 26, and the plurality of meshing teeth 26A and the plurality of meshing teeth 27A And become meshed.
- the male spline member 26 and the female spline member 27 engage with each other, and the rotary atomizing head 21 is not displaced relative to the rotary shaft 14 in the circumferential direction.
- reference numeral 28 denotes an axial displacement restricting mechanism, which is integrally formed with the rotation restricting mechanism 25. That is, the male spline member 26 is formed of, for example, an elastically deformable resin material or the like, and the female spline member 27 is formed of, for example, a metal material. As a result, when the meshing teeth 26A are inserted into the grooves between the meshing teeth 27A, an axial frictional resistance is generated between the meshing teeth 26A of the male spline member 26 and the meshing teeth 27A of the female spline member 27.
- the male spline member 26 and the female spline member 27 not only constitute the rotation restricting mechanism 25 but also restrict the axial displacement of the rotary atomizing head 21 with respect to the rotary shaft 14 in the axial direction.
- the mechanism 28 can be configured.
- the male spline member 26 and the female spline member 27 have the two functions of the rotation restricting mechanism 25 and the axial displacement restricting mechanism 28.
- the coating apparatus 1 according to the first embodiment has the above-described configuration, and its operation will be described next.
- the rotary atomizing head 21 is rotated at high speed together with the rotary shaft 14. Then, while the rotary atomizing head 21 is rotationally driven with the rotary shaft 14, a high voltage is applied to the rotary atomizing head 21, and the paint is supplied from the feed tube 11 toward the paint reservoir 22 D of the rotary atomizing head 21. Do.
- the paint supplied to the paint reservoir 22D flows out from the paint outflow passage 23A of the hub member 23 to the paint film thinning surface 22A of the atomizing head body 22 by centrifugal force. Then, the paint which has flowed out of the paint outflow passage 23A is thinned on the paint film thinning surface 22A and then sprayed as paint particles from the emission edge 22B to be applied to the object to be coated.
- a solvent such as thinner is supplied to the paint reservoir 22D of the rotary atomizing head 21 instead of the paint while the rotary atomizing head 21 is also rotationally driven.
- the paint reservoir 22D is cleaned with this solvent, and then the paint that has adhered to the paint thinning surface 22A and the discharge edge 22B of the atomizing head body 22 is washed with the solvent flowing out of the paint outflow passage 23A of the hub member 23, The front surface of the hub member 23 is cleaned by the solvent flowing out of the solvent outflow passage 23B.
- the rotary atomizing head 21 may be removed.
- the rotary atomizing head 21 may be replaced depending on the shape, size, etc. of the object to be coated. Therefore, the case where the rotary atomizing head 21 is removed from the rotary shaft 14 and the case where the rotary atomizing head 21 is attached to the rotary shaft 14 will be described next.
- the rotary atomizing head 21 when the rotary atomizing head 21 is removed from the rotary shaft 14, the rotary atomizing head 21 is located on the front side along the axial direction against the frictional force between the male spline member 26 and the female spline member 27. Pull toward. Thus, the mounting tube portion 24 of the atomizing head body 22 can be removed from the mounting shaft portion 15 of the rotary shaft 14.
- the rotary atomizing head 21 is attached to the rotary shaft 14, the atomizing head main body 22 is rotated with the tapered portion 15B of the mounting shaft portion 15 inserted into the fitting hole 24A of the mounting cylindrical portion 24. Push towards axis 14 At this time, since the rear end side of the female spline member 27 abuts on the tip side of the male spline member 26, the rotary atomizing head 21 is rotated in the circumferential direction to form a V-shaped groove between the meshing teeth 27A of the female spline member 27. A position where the meshing tooth 26A of the male spline member 26 can enter is searched.
- the rotary atomizing head 21 When the rotary atomizing head 21 is pressed against the rotary shaft 14, the inclined inner peripheral surface 24 C of the mounting cylinder 24 abuts on the inclined outer peripheral surface 15 C of the mounting shaft 15. At this time, the rotary atomizing head 21 is oriented at the rotation center of the rotation shaft 14 by the inclined outer peripheral surface 15C of the tapered portion 15B. As a result, the rotary atomizing head 21 is automatically aligned with the rotary shaft 14, and the central axes (axis OO) of the rotary atomizing head 21 and the rotary shaft 14 coincide with each other.
- the rotation restricting mechanism 25 is provided between the mounting shaft portion 15 of the rotary shaft 14 and the mounting cylindrical portion 24 of the rotary atomizing head 21. For this reason, the rotational restriction mechanism 25 can restrict rotational displacement of the rotary atomizing head 21 in the circumferential direction with respect to the rotational shaft 14.
- the rotary atomizing head 21 is stably fixed to the rotary shaft 14 to cause rotational deviation between the rotary atomizing head 21 and the rotary shaft 14. Can be regulated. As a result, the central axis of the rotary shaft 14 and the central axis of the rotary atomizing head 21 can be held in alignment, so that the rotary shaft 14 can be prevented from coming into contact with the static pressure air bearing 13C. , Reliability and durability can be enhanced.
- the rotary atomizing head 21 rotates integrally with the rotary shaft 14 in any case of increase or decrease of the rotational speed, the following delay between the rotary shaft 14 and the rotary atomizing head 21 is eliminated. Can. For this reason, even when the coating operation is performed while changing, for example, the number of rotations of the rotary shaft 14, the paint particles can be rapidly made to have a particle diameter corresponding to the number of rotations, and the coating quality can be improved.
- the rotation restricting mechanism 25 includes a male spline member 26 provided on the outer peripheral side of the mounting shaft 15 of the rotary shaft 14 and a female spline member provided on the inner peripheral side of the mounting cylinder 24 of the rotary atomizing head 21. And 27 are composed.
- the rotary atomizing head 21 can be immediately attached to the rotary shaft 14.
- the rotary atomizing head 21 can be attached to the rotary shaft 14 without using screwing of screws, so that, for example, even when the number of rotations of the air motor 13 drops sharply, the rotary atomizing head 21 rotates the rotary shaft 14.
- the mounting stability of the rotary atomizing head 21 with respect to the rotary shaft 14 can be enhanced.
- the axial displacement restricting mechanism 28 is provided between the mounting shaft portion 15 of the rotary shaft 14 and the mounting cylindrical portion 24 of the rotary atomizing head 21, the rotary atomizing head using the axial displacement restricting mechanism 28 It is possible to restrict axial displacement of the rotary shaft 21 with respect to the rotary shaft 14 and to reliably prevent the rotary atomizing head 21 from falling off.
- the axial displacement restriction mechanism 28 is configured to use an axial frictional resistance generated between the meshing teeth 26A of the male spline member 26 and the meshing teeth 27A of the female spline member 27. .
- the male spline member 26 and the female spline member 27 can have two functions of the rotation restricting mechanism 25 and the axial displacement restricting mechanism 28.
- the mounting shaft portion 15 of the rotating shaft 14 and the mounting cylindrical portion 24 of the rotary atomizing head 21 can be miniaturized. it can.
- FIGS. 5 to 7 show a second embodiment.
- the axial displacement regulating mechanism is configured by an elastic ring provided on the mounting shaft portion of the rotary shaft and elastically contacting the mounting cylindrical portion of the rotary atomizing head.
- the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
- Reference numeral 31 denotes a rotation restricting mechanism according to the second embodiment.
- the rotation restricting mechanism 31 is substantially the same as the rotation restricting mechanism 25 according to the first embodiment, including a male spline member 32 provided on the outer peripheral side of the mounting shaft portion 15 of the rotating shaft 14 and a rotating atomizing head 21. It is comprised by the female spline member 33 provided in the inner peripheral side of the mounting cylinder part 24. As shown in FIG.
- each of the male spline member 32 and the female spline member 33 is formed using, for example, a conductive metal material such as iron, stainless steel, or an aluminum alloy, a conductive resin material, or the like.
- the male spline member 32 is an annular body in which the meshing teeth 32A are formed over the entire periphery on the outer peripheral side.
- the male spline member 32 is fitted and fixed to the cylindrical portion 15A of the mounting shaft portion 15 and the step portion 14A of the rotating shaft 14.
- the female spline member 33 is an annular body in which the meshing teeth 33A are formed on the entire inner circumference side.
- the female spline member 33 is fixed to the female spline fitting portion 24A of the mounting cylindrical portion 24.
- the male spline member 32 and the female spline member 33 of the rotation restricting mechanism 31 do not have to function as an axial displacement restricting mechanism. Therefore, a slight gap is formed between the male spline member 32 and the female spline member 33 so that the meshing teeth 32A can enter the groove between the meshing teeth 33A.
- Reference numeral 34 denotes an axial displacement restriction mechanism according to the second embodiment. Unlike the axial displacement restricting mechanism 28 according to the first embodiment, the axial displacement restricting mechanism 34 is provided separately from the rotation restricting mechanism 31. Specifically, the axial displacement restricting mechanism 34 is constituted by an elastic ring 35 such as an O-ring mounted on the outer peripheral side of the mounting shaft portion 15 of the rotating shaft 14.
- a ring fitting groove 36 is recessed in the cylindrical portion 15A of the mounting shaft portion 15 in order to mount the elastic ring 35.
- the ring fitting groove 36 is formed by, for example, a concave groove having a square cross section, and is formed in an annular shape surrounding the cylindrical portion 15A while being located on the outer peripheral surface of the cylindrical portion 15A and extending in the circumferential direction. .
- the elastic ring 35 is attached to the ring fitting groove 36, and the outer peripheral side thereof protrudes from the ring fitting groove 36.
- the elastic ring 35 elastically contacts the inner peripheral surface of the mounting cylinder portion 24 of the rotary atomizing head 21 to restrict displacement of the rotary atomizing head 21 in the axial direction.
- the same function and effect as those in the first embodiment can be obtained.
- the axial displacement restriction mechanism 34 is constituted by the elastic ring 35 provided on the attachment shaft 15 of the rotary shaft 14, the elastic ring 35 is attached to the attachment cylinder of the rotary atomizing head 21.
- the elastic ring 35 By elastically contacting the inner peripheral surface of the rotary shaft 24, axial displacement of the rotary atomizing head 21 with respect to the rotary shaft 14 can be prevented.
- the axial direction displacement restricting mechanism 34 since the axial direction displacement restricting mechanism 34 is provided separately from the rotation restricting mechanism 31, the axial direction displacement restricting mechanism 34 only displaces the rotary atomizing head 21 in the axial direction. It should be taken into consideration, and design freedom such as material selection and shape of the elastic ring 35 is increased.
- the elastic ring 35 is provided on the outer peripheral side of the mounting shaft portion 15 of the rotary shaft 14 and elastically contacts the inner peripheral surface of the mounting cylindrical portion 24 of the rotary atomizing head 21. It is a structure. However, the present invention is not limited to this, and an elastic ring is provided on the inner peripheral side of the mounting cylindrical portion 24 of the rotary atomizing head 21, and the elastic ring is elastically formed on the outer peripheral surface of the mounting shaft 15 of the rotary shaft 14. It may be configured to be in contact.
- FIG. 8 shows a third embodiment.
- the axial displacement restricting mechanism comprises a first magnetic ring provided on the mounting shaft of the rotary shaft and a second magnetic ring provided on the mounting cylinder of the rotary atomizing head. It consists in that it is configured by the ring.
- the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
- the rotation restricting mechanism 41 is a rotation restricting mechanism according to the third embodiment.
- the rotation restricting mechanism 41 is substantially the same as the rotation restricting mechanism 31 according to the second embodiment, and includes a male spline member 42 formed of a plurality of meshing teeth 42A provided on the outer peripheral side of the mounting shaft 15 of the rotating shaft 14
- the female spline member 43 is composed of a plurality of meshing teeth 43A provided on the inner peripheral side of the mounting cylindrical portion 24 of the rotary atomizing head 21.
- Reference numeral 44 denotes an axial displacement restricting mechanism according to the third embodiment. Unlike the axial displacement restricting mechanism 28 according to the first embodiment, the axial displacement restricting mechanism 44 is provided separately from the rotation restricting mechanism 41. Specifically, the axial displacement restriction mechanism 44 includes a first magnetic ring 45 (first magnetic member) provided on the outer peripheral side of the mounting shaft portion 15 of the rotary shaft 14 and a mounting of the rotary atomizing head 21. It is comprised by the 2nd magnetic ring 46 (2nd magnetic member) provided in the inner peripheral side of the cylinder part 24. As shown in FIG.
- a first ring fitting groove 47 is provided on the front side of the male spline member 42 for mounting the first magnetic ring 45. It is recessed.
- the ring fitting groove 47 is formed, for example, as an annular groove having a square cross section extending in the circumferential direction on the outer peripheral surface of the cylindrical portion 15A.
- a second ring fitting groove 48 for mounting the second magnetic ring 46 is recessed on the inner peripheral side of the mounting cylindrical portion 24 so as to be located on the front side of the female spline member 43 .
- the second ring fitting groove 48 is disposed at a position facing the first ring fitting groove 47 in a state where the rotary atomizing head 21 is attached to the rotary shaft 14.
- the ring fitting groove 48 is formed, for example, as an annular groove having a square cross section extending in the circumferential direction on the inner peripheral surface of the fitting hole 24A.
- the first magnetic ring 45 is formed in a ring shape having a square cross section by using a magnetic material having a magnetic force such as a permanent magnet, for example.
- the first magnetic ring 45 is attached to the first ring fitting groove 47 of the attachment shaft portion 15.
- the second magnetic ring 46 is formed of, for example, a magnetic material in a ring shape having a square cross section, and is attached to the second ring fitting groove 48 of the mounting cylindrical portion 24.
- the second magnetic ring 46 is configured to be attracted to the first magnetic ring 45 by the magnetic force of the first magnetic ring 45. Further, even in the state where the rotary atomizing head 21 is attached to the rotary shaft 14, the first magnetic ring 45 is configured to face the second magnetic ring 46 via a gap.
- the axial displacement restriction mechanism 44 includes first and second magnetic rings provided on the mounting shaft portion 15 of the rotating shaft 14 and the mounting cylindrical portion 24 of the rotary atomizing head 21 respectively. It consists of 45 and 46. For this reason, since an attractive force is exerted by the magnetic force of the first and second magnetic rings 45 and 46, the rotary atomizing head 21 is an axis with respect to the rotation axis 21 using the first and second magnetic rings 45 and 46. It is possible to prevent displacement in the direction.
- the second magnetic ring 46 of the axial direction displacement restricting mechanism 44 is provided in the fitting hole 24A of the mounting shaft portion 24 and a gap is formed between the first magnetic ring 45 and the second magnetic ring 46 , And the second magnetic rings 45 and 46 are not in direct contact with each other. For this reason, as compared with the case of using the elastic ring as in the second embodiment, the first and second magnetic rings 45 and 46 do not wear and the durability can be improved.
- the axial displacement restriction mechanism 44 is configured using the first and second magnetic rings 45 and 46 formed in a ring shape surrounding the rotation shaft 14.
- the present invention is not limited to this, and for example, a plurality of first magnetic members are arranged at intervals in the circumferential direction on the mounting shaft portion 15 of the rotating shaft 14 and the mounting cylindrical portion 24 of the rotary atomizing head 21
- the plurality of second magnetic members may be arranged at intervals in the circumferential direction.
- FIG. 9 shows a fourth embodiment.
- the axial displacement control mechanism is configured by a male spline member and a female spline member that attract each other with a magnetic force.
- the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
- Reference numeral 51 denotes a rotation restricting mechanism according to the fourth embodiment.
- the rotation restricting mechanism 51 is substantially the same as the rotation restricting mechanism 25 according to the first embodiment, including a male spline member 52 provided on the outer peripheral side of the mounting shaft portion 15 of the rotating shaft 14 and a rotating atomizing head 21. It is comprised by the female spline member 53 provided in the inner peripheral side of the mounting cylinder part 24. As shown in FIG.
- the male spline member 52 is an annular body in which the meshing teeth 52A are formed on the entire outer circumference side.
- the male spline member 52 is fitted and fixed to the cylindrical portion 15A of the mounting shaft portion 15 and the step portion 14A of the rotating shaft 14.
- the female spline member 53 is an annular body in which the meshing teeth 53A are formed on the entire inner circumference side.
- the female spline member 53 is fixed to the female spline fitting portion 24A of the mounting cylindrical portion 24.
- the male spline member 52 is formed using a magnetic material having a magnetic force, such as a permanent magnet.
- the female spline member 53 is also made of, for example, a magnetic material such as an iron-based material.
- a magnetic attractive force acts between the male spline member 52 and the female spline member 53 to attract each other. Therefore, in addition to constituting the rotation restricting mechanism 51, the male spline member 52 and the female spline member 53 restrict axial displacement of the rotary atomizing head 21 with respect to the rotary shaft 14 in the axial direction.
- the mechanism 54 is configured.
- a slight gap is formed between the male spline member 52 and the female spline member 53 in order to allow the meshing teeth 52A to easily enter the grooves between the meshing teeth 53A.
- FIGS. 10 to 13 show a fifth embodiment.
- the axial displacement restricting mechanism is provided on an engaging projection provided radially movably on the mounting shaft of the rotary shaft, and on a mounting cylinder of the rotary atomizing head.
- the alignment mechanism is configured by the inclined groove bottom surface provided on the bottom side of the fitting groove.
- the rotation restricting mechanism 61 is a rotation restricting mechanism according to the fifth embodiment.
- the rotation restricting mechanism 61 is substantially the same as the rotation restricting mechanism 31 according to the second embodiment, and includes a male spline member 62 composed of a plurality of meshing teeth 62A provided on the outer peripheral side of the mounting shaft portion 15 of the rotating shaft 14
- a female spline member 63 composed of a plurality of meshing teeth 63A provided on the inner peripheral side of the mounting cylindrical portion 24 of the rotary atomizing head 21.
- Reference numeral 64 denotes an axial displacement restricting mechanism according to the fifth embodiment. Unlike the axial displacement restricting mechanism 28 according to the first embodiment, the axial displacement restricting mechanism 64 is provided separately from the rotation restricting mechanism 61. Specifically, the axial displacement restricting mechanism 64 includes a plurality of (for example, two) engagement protrusions 65 (engagement members) rotatably provided on the attachment shaft portion 15 of the rotation shaft 14 in a radial direction, and rotation. It is comprised by the cyclic
- the engagement protrusion 65 is formed of, for example, a high density metal material so that a large centrifugal force acts.
- the engagement projection 65 is formed of, for example, a cylindrical pin portion 65A and an annular collar portion 65B provided on the base end side of the pin portion 65A. Further, on the tip end side of the pin portion 65A, for example, chamfering in an arc shape is performed, and the contact area with the inclined groove bottom surface 67A described later is large.
- a plurality of (for example, two) projection accommodating concave portions 66 are disposed on the front side of the male spline member 62 to accommodate the engaging projections 65. Are recessed at equal intervals in the circumferential direction.
- the plurality of projection receiving recesses 66 are arranged at the same position in the axial direction so as to face the annular fitting groove 67.
- the plurality of protrusion accommodation recesses 66 are arranged at equal intervals in the circumferential direction of the rotation shaft 14.
- the protrusion accommodation recess 66 is constituted by a bottomed hole extending in the radial direction and having a circular cross section, and the inner diameter thereof is set to a value larger than the outer diameter of the flange portion 65B of the engagement protrusion 65, for example.
- the engagement projection 65 is radially displaceable in the projection receiving recess 66.
- a lid 66A is provided on the opening side of the protrusion accommodation recess 66, and the lid 66A is provided with an insertion hole 66B larger in diameter than the pin 65A and smaller in diameter than the flange 65B.
- the pin portion 65A of the engagement protrusion 65 can project from the protrusion accommodation recess 66 through the insertion hole 66B, while the collar portion 65B of the engagement protrusion 65 interferes with the lid portion 66A.
- the lid 66A prevents the engagement projection 65 from coming out of the projection accommodation recess 66.
- the fitting groove 67 which constitutes a part of the axial direction displacement restricting mechanism 64 is recessed on the inner peripheral side of the mounting cylindrical portion 24. At this time, the fitting groove 67 is disposed at a position facing the engagement protrusion 65 in a state where the rotary atomizing head 21 is attached to the rotary shaft 14. Further, the fitting groove 67 is formed, for example, as an annular groove having a square cross-sectional shape which is located on the inner peripheral surface of the fitting hole 24A and extends in the circumferential direction. When the engagement protrusion 65 is displaced radially outward, the pin portion 65A of the engagement protrusion 65 enters and fits in the fitting groove 67. Thereby, the engagement protrusion 65 and the fitting groove 67 can restrict the rotational atomizing head 21 from being displaced in the axial direction.
- reference numeral 68 denotes an alignment mechanism, and the alignment mechanism 68 is configured integrally with the axial displacement control mechanism 64.
- the fitting groove 67 has a groove width dimension larger than the outer diameter dimension of the pin portion 65A so that the pin portion 65A can enter. Further, on the bottom side of the fitting groove 67, there is formed an inclined groove bottom surface 67A whose groove depth becomes shallower from the back side of the mounting cylindrical portion 24 toward the opening side. The depth of the fitting groove 67 is set such that the inclined groove bottom surface 67A and the tip end portion of the engagement protrusion 65 can come into contact with each other. Thereby, the alignment protrusion 68 and the inclined groove bottom surface 67A of the fitting groove 67 can constitute an alignment mechanism 68 for aligning the central axis of the rotary atomizing head 21 with the central axis of the rotary shaft 14.
- the operation of the alignment mechanism 68 will be specifically described.
- the engagement protrusion 65 is moved radially outward by centrifugal force as shown in FIG.
- the pin portion 65A of the engagement protrusion 65 is strongly pressed against the inclined groove bottom surface 67A of the fitting groove 67, an axial component force is generated at the contact point between the pin portion 65A and the inclined groove bottom surface 67A.
- the atomizing head 21 is pressed toward the proximal end side (the direction of the air motor 13) of the rotary shaft 14.
- the inclined inner peripheral surface 24C of the rotary atomizing head 21 can be biased toward the inclined outer peripheral surface 15C of the rotary shaft 14, and the central axis of the rotary atomizing head 21 can be aligned with the central axis of the rotary shaft 14. .
- the axial displacement restricting mechanism 64 includes an engagement protrusion 65 provided on the outer peripheral side of the attachment shaft 15 of the rotary shaft 14 and an attachment cylinder 24 of the rotary atomizing head 21.
- the rotary atomizing head 21 is displaced in the axial direction with respect to the rotary shaft 14 by the engagement protrusion 65 entering the fitting groove 67 since it is constituted by the fitting groove 67 provided on the inner peripheral side. Can be regulated.
- the alignment mechanism 68 is constituted by the engaging projection 65 and the inclined groove bottom surface 67A provided on the bottom side of the fitting groove 67, the centrifugal force when the rotating shaft 14 is rotating at high speed is utilized.
- the engagement projection 65 protrudes radially outward, and the tip end of the engagement projection 65 abuts on the inclined groove bottom surface 67 A of the fitting groove 67. Therefore, the rotary atomizing head 21 is urged toward the base end side (the direction of the air motor 13) of the rotary shaft 14 by the component force generated at the contact point between the pin portion 65A of the engagement projection 65 and the inclined groove bottom surface 67A. can do.
- the inclined inner peripheral surface 24C of the rotary atomizing head 21 can be pressed toward the inclined outer peripheral surface 15C of the rotary shaft 14, and the central axis of the rotary atomizing head 21 can be aligned with the central axis of the rotary shaft 14.
- the biasing force for biasing the inclined inner peripheral surface 24C of the rotary atomizing head 21 toward the inclined outer peripheral surface 15C of the rotating shaft 14 can be easily increased according to the number of rotations. Therefore, the rotary atomizing head 21 can be reliably fixed to the rotary shaft 14 in a state where the central axis of the rotary atomizing head 21 and the central axis of the rotary shaft 14 coincide with each other. Thereby, the rotating shaft 14 can be stably rotated, and damage to the rotating shaft 14 and the static pressure air bearing 13C can be prevented.
- FIGS. 14 and 17 show a sixth embodiment.
- the axial direction displacement restricting mechanism is constituted by the engaging projection and the fitting groove, and a spring member biased outward in the radial direction is attached to the engaging projection. It is.
- the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
- Reference numeral 71 denotes a rotation restricting mechanism according to the sixth embodiment.
- the rotation restricting mechanism 71 is substantially the same as the rotation restricting mechanism 31 according to the second embodiment, and includes a male spline member 72 composed of a plurality of meshing teeth 72A provided on the outer peripheral side of the mounting shaft 15 of the rotating shaft 14
- the female spline member 73 includes a plurality of meshing teeth 73A provided on the inner peripheral side of the mounting cylindrical portion 24 of the rotary atomizing head 21.
- Reference numeral 74 denotes an axial displacement restricting mechanism according to the sixth embodiment.
- the axial displacement restricting mechanism 74 includes an engagement protrusion 65 according to the fifth embodiment, an engagement protrusion 75 (engagement member) substantially similar to the fitting groove 67, and a fitting groove 77.
- the engagement protrusion 75 is constituted of, for example, a cylindrical pin portion 75A and an annular collar portion 75B provided on the base end side of the pin portion 75A.
- the engagement projection 75 is accommodated in a projection accommodation recess 76 provided in the cylindrical portion 15A of the attachment shaft portion 15.
- the protrusion accommodation recess 76 is formed in a circular shape and has a bottomed hole extending in the radial direction, and a plurality (for example, two) of the protrusion accommodation recess 76 is provided at a position facing the annular fitting groove 77.
- the plurality of projection receiving recesses 76 are arranged at equal intervals in the circumferential direction of the rotating shaft 14.
- a lid 76A is provided on the opening side of the protrusion accommodating recess 76, and an insertion hole 76B through which the pin 75A is inserted is provided in the lid 76A.
- a first spring member 75C made of a coil spring or the like is provided between the flange portion 75B of the engagement protrusion 75 and the bottom surface of the protrusion accommodation recess 76. Then, the first spring member 75C biases the engagement protrusion 75 radially outward (in a direction of protruding from the protrusion accommodation recess 76).
- a second spring member 75D made of a coil spring or the like surrounding the pin 75A is provided between the flange 75B of the engagement projection 75 and the lid 76A of the projection accommodation recess 76. Then, the second spring member 75D biases the engagement protrusion 75 radially inward (in a direction of entering the protrusion accommodation recess 76).
- the engagement protrusion 75 is held at a position where the two spring members 75C and 75D are in balance, as shown in FIG. Slightly protruding from the Further, when the rotating shaft 14 is rotated at a high speed, a centrifugal force acts on the engagement protrusion 75, so the engagement protrusion 75 is radially outward facing the second spring member 75D as shown in FIG. Displace.
- the fitting groove 77 is recessed on the inner peripheral side of the mounting cylindrical portion 24.
- the fitting groove 77 is formed, for example, by a concave groove having a square cross-sectional shape, and is formed in an annular shape which is located on the inner peripheral surface of the fitting hole 24A and extends in the circumferential direction.
- reference numeral 78 denotes an alignment mechanism, which is integrally formed with the axial displacement control mechanism 74. That is, on the bottom side of the fitting groove 77, there is formed an inclined groove bottom surface 77A whose groove depth becomes shallower from the back side of the mounting cylindrical portion 24 toward the opening side. At this time, the inclined groove bottom surface 77A can be in contact with the tip portion of the engagement protrusion 75.
- the alignment protrusion 78 and the inclined groove bottom surface 77A of the fitting groove 77 can constitute an alignment mechanism 78 for aligning the central axis of the rotary atomizing head 21 with the central axis of the rotary shaft 14.
- the first spring member 75C is attached to the engagement protrusion 75, and the first spring member 75C is used to bias the engagement protrusion 75 radially outward. It has become. Therefore, regardless of whether or not the rotary shaft 14 is rotating, the tip of the engagement projection 75 can be made to enter the fitting groove 77. Therefore, when the rotary atomizing head 21 is attached to the rotary shaft 14, The mating projection 75 can be reliably fitted in the fitting groove 77, and the rotary atomizing head 21 can be fixed in a retaining state.
- the engaging projection 75 when the engaging projection 75 is made larger in projection size and the groove depth of the fitting groove 77 is made larger, the engaging projection 75 deeply intrudes into the fitting groove 77. Therefore, when the rotary atomizing head 21 is removed, the engaging projection 75 may not be easily pulled out of the fitting groove 77.
- the second spring member 75D is attached to the engagement protrusion 75, and the second spring member 75D is used to bias the engagement protrusion 75 radially inward. And thereby, when the rotating shaft 14 comes to a standstill, the engagement protrusion 75 can be prevented from protruding more than necessary from the protrusion accommodation recess 76. Therefore, when the rotary atomizing head 21 is attached and removed, the tip of the engagement projection 75 enters the fitting groove 77 but does not contact the inclined groove bottom surface 77A. Therefore, by pulling out the rotary atomizing head 21 from the rotary shaft 14, the engaging projection 75 can be easily pulled out from the fitting groove 77, and the workability when attaching and removing the rotary atomizing head 21 is enhanced. be able to.
- the amount of displacement (stroke length) in the radial direction of the engagement protrusion 75 is increased. be able to. For this reason, the groove depth dimension of the fitting groove 77 can be enlarged, and the retaining effect of the rotary atomizing head 21 in the rotating state can be enhanced.
- FIG. 18 shows a seventh embodiment.
- the axial displacement restricting mechanism is constituted by the engaging projection and the fitting groove, and the engaging projection and the fitting groove are configured to attract each other by the magnetic force.
- the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
- Reference numeral 81 denotes a rotation restricting mechanism according to the seventh embodiment.
- the rotation restricting mechanism 81 is substantially the same as the rotation restricting mechanism 31 according to the second embodiment, and includes a male spline member 82 composed of a plurality of meshing teeth 82A provided on the outer peripheral side of the mounting shaft 15 of the rotating shaft 14
- the female spline member 83 is composed of a plurality of meshing teeth 83A provided on the inner peripheral side of the mounting cylindrical portion 24 of the rotary atomizing head 21.
- Reference numeral 84 denotes an axial displacement restricting mechanism according to the seventh embodiment.
- the axial direction displacement restricting mechanism 84 is provided with an engagement protrusion 65 according to the fifth embodiment, an engagement protrusion 85 (engagement member) substantially similar to the fitting groove 67, and a fitting groove 88.
- the engaging projection 85 and the fitting groove 88 are configured to attract each other by the magnetic force.
- the engagement protrusion 85 is formed of a magnetic material having a magnetic force such as a permanent magnet, for example.
- the fitting groove 88 is formed of, for example, a magnetic material member 87 such as an iron-based material, and has a configuration in which a magnetic attractive force acts on the engagement protrusion 85.
- the engagement protrusion 85 is constituted of, for example, a cylindrical pin portion 85A and an annular collar portion 85B provided on the base end side of the pin portion 85A.
- the engagement projection 85 is accommodated in a projection accommodating recess 86 which is recessed in the cylindrical portion 15A of the attachment shaft 15.
- the protrusion accommodating concave portion 86 is formed of a bottomed hole extending in the radial direction and having a circular cross section, and a plurality (for example, two) of the protrusion accommodating concave portions 86 are provided at positions facing the annular fitting groove 88.
- the plurality of projection receiving recesses 86 are arranged at equal intervals in the circumferential direction of the rotating shaft 14.
- a lid 86A is provided on the opening side of the protrusion accommodation recess 86, and an insertion hole 86B through which the pin 85A is inserted is provided in the lid 86A.
- a magnetic member 87 annularly formed at a position facing the protrusion accommodating recess 86 is embedded.
- the magnetic member 87 is made of, for example, a magnetic material such as an iron-based material.
- the above-mentioned fitting groove 88 is provided on the inner peripheral surface of the magnetic member 87.
- the fitting groove 88 is formed, for example, by a concave groove having a rectangular cross section, and is formed in an annular shape which is located on the inner peripheral surface of the fitting hole 24A and extends in the circumferential direction.
- the fitting groove 88 is engaged with the pin portion 85A of the engagement protrusion 85 when the engagement protrusion 85 is displaced radially outward. Thereby, the engagement protrusion 85 and the fitting groove 88 can restrict the rotational atomizing head 21 from being displaced in the axial direction.
- Reference numeral 89 denotes an alignment mechanism, and the alignment mechanism 89 is configured integrally with the axial displacement restriction mechanism 84. That is, on the bottom portion side of the fitting groove 88, an inclined groove bottom surface 88A whose groove depth dimension is reduced from the back portion side of the mounting cylindrical portion 24 toward the opening side is formed. At this time, the inclined groove bottom surface 88A can come in contact with the tip portion of the engagement protrusion 85.
- the alignment protrusion 89 and the inclined groove bottom surface 88A of the fitting groove 88 can constitute an alignment mechanism 89 for aligning the central axis of the rotary atomizing head 21 with the central axis of the rotary shaft 14.
- the seventh embodiment can provide the same effects as those of the first and fifth embodiments.
- the engaging projection 85 and the fitting groove 88 are configured to attract each other by the magnetic force, the engaging projection 85 can be moved toward the fitting groove 88 by the magnetic force. . Therefore, regardless of whether or not the rotary shaft 14 is rotating, the tip of the engagement projection 85 can be made to enter the fitting groove 88. Therefore, when the rotary atomizing head 21 is attached to the rotary shaft 14, The mating projection 85 can be reliably fitted in the fitting groove 88, and the rotary atomizing head 21 can be fixed in a retaining state.
- FIGS. 19 and 20 show an eighth embodiment.
- the eighth embodiment is characterized in that the axial displacement regulating mechanism is constituted by the engaging sphere and the fitting groove, and the axis alignment mechanism is constituted by the inclined groove bottom surface provided on the bottom side of the fitting groove. It is in.
- the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
- the rotation restricting mechanism 91 is a rotation restricting mechanism according to the eighth embodiment.
- the rotation restricting mechanism 91 is substantially the same as the rotation restricting mechanism 31 according to the second embodiment, and includes a male spline member 92 composed of a plurality of meshing teeth 92A provided on the outer peripheral side of the mounting shaft portion 15 of the rotating shaft 14
- the female spline member 93 is composed of a plurality of meshing teeth 93A provided on the inner peripheral side of the mounting cylindrical portion 24 of the rotary atomizing head 21.
- Reference numeral 94 denotes an axial displacement restricting mechanism according to the eighth embodiment.
- the axial displacement restricting mechanism 94 includes a plurality of (for example, two) engaging spheres 95 (engaging members) provided radially movably in the mounting shaft portion 15 of the rotating shaft 14, and a rotary atomizing head 21. It is comprised by the cyclic
- the engagement sphere 95 is formed of, for example, a sphere made of a metal material.
- the engagement sphere 95 is accommodated in a sphere accommodation recess 96 recessed in the cylindrical portion 15A of the attachment shaft 15.
- the spherical body accommodation concave portion 96 is formed of a bottomed hole extending in a radial direction with a circular cross section, and a plurality of (for example, two) spherical body accommodation concave portions 96 are provided at positions facing the annular fitting groove 97.
- the plurality of spherical body housing concave portions 96 are arranged at equal intervals in the circumferential direction of the rotation shaft 14. Further, the inside diameter of the ball housing recess 96 is set to a value larger than the outside diameter of the engagement ball 95. Further, a lid 96A is provided on the opening side of the spherical body accommodation recess 96, and an insertion hole 96B having a hole diameter smaller than the outer diameter of the engaging sphere 95 is provided on the lid 96A. There is. Thereby, a part of the engagement sphere 95 can project from the sphere accommodation recess 96 through the insertion hole 96B.
- the fitting groove 97 is recessed on the inner peripheral side of the mounting cylindrical portion 24.
- the fitting groove 97 is formed, for example, by a concave groove having a square cross-sectional shape, and is formed in an annular shape which is located on the inner peripheral surface of the fitting hole 24A and extends in the circumferential direction. Then, when the engaging ball 95 is displaced radially outward, the fitting groove 97 enters and engages a part of the engaging ball 95. Thereby, the engagement ball 95 and the fitting groove 97 restrict the axial displacement of the rotary atomizing head 21.
- Reference numeral 98 denotes an alignment mechanism, and the alignment mechanism 98 is configured integrally with the axial displacement control mechanism 94. That is, on the bottom side of the fitting groove 97, there is formed an inclined groove bottom surface 97A whose groove depth becomes shallower from the back side of the mounting cylindrical portion 24 toward the opening side. At this time, the inclined groove bottom surface 97A can be in contact with the projecting portion of the engagement ball 95. As a result, the alignment sphere 98 for aligning the central axis of the rotary atomizing head 21 with the central axis of the rotary shaft 14 can be configured.
- the same function and effect as those of the first and fifth embodiments can be obtained.
- the axial displacement restricting mechanism 94 is constituted by the engaging sphere 95 and the fitting groove 97
- the rotary atomizing head is formed by the engaging sphere 95 entering the fitting groove 97.
- the axial displacement of the shaft 21 relative to the rotation axis 14 can be restricted.
- the alignment mechanism 98 is configured by an inclined groove bottom surface 97A provided on the bottom side of the fitting groove 97. Therefore, when the engaging sphere 95 is made to project radially outward by utilizing the centrifugal force by rotation, the tip of the engaging sphere 95 abuts on the inclined groove bottom surface 97A of the fitting groove 97. For this reason, the rotary atomizing head 21 can be pressed toward the rotating shaft 14 by the component force generated at the contact point between the engaging sphere 95 and the inclined groove bottom surface 97A.
- the inclined inner peripheral surface 24C of the rotary atomizing head 21 can be biased toward the inclined outer peripheral surface 15C of the rotary shaft 14, and the central axis of the rotary atomizing head 21 can be aligned with the central axis of the rotary shaft 14. .
- the engaging spheres 95 are displaced radially outward only by centrifugal force.
- a spring member 95A may be provided between the engagement sphere 95 'and the bottom surface of the sphere accommodation recess 96 as in the axial displacement regulation mechanism 94' according to the first modification shown in FIG. And the engaging ball 95 'may be biased toward the lid 96A by the spring member 95A'.
- the engaging sphere 95 ′ ′ is formed of a magnetic material having a magnetic force such as a permanent magnet or the like.
- the fitting groove 97 may be formed of a magnetic material, and the engaging sphere 95" and the fitting groove 97 "may be attracted to each other by the magnetic force.
- FIGS. 23 to 26 show a ninth embodiment.
- the feature of the ninth embodiment is that the rotation restricting mechanism and the axial displacement restricting mechanism are plurally arranged in a row in an engaging projection provided on the attaching shaft portion of the rotating shaft and an attaching cylindrical portion of the rotary atomizing head. It comprises in the fitting part which consists of each independent recessed part.
- the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
- Reference numerals 101 and 102 respectively indicate a rotation restricting mechanism and an axial displacement restricting mechanism according to the ninth embodiment.
- the rotation restricting mechanism 101 and the axial displacement restricting mechanism 102 are provided with a plurality of (for example, two) engaging projections 103 radially movably provided on the mounting shaft portion 15 of the rotating shaft 14, and a rotary atomizing head It is comprised by the fitting part 105 which consists of the below-mentioned several independent recessed part 105A provided in the attachment cylinder part 24 of 21.
- the fitting portion 105 composed of the engagement projection 103 and the independent recess 105A serves as both the rotation restricting mechanism 101 and the axial displacement restricting mechanism 102.
- the engaging protrusion 103 is, for example, a cylindrical pin portion 103A and an annular collar portion provided on the base end side of the pin portion 103A, substantially the same as the engaging protrusion 65 according to the fifth embodiment. And 103B.
- the engagement projection 103 is accommodated in a projection accommodation recess 104 which is recessed in the cylindrical portion 15A of the attachment shaft portion 15.
- the protrusion accommodation recess portion 104 is formed of a bottomed hole extending in the radial direction and having a circular cross section, and a plurality (for example, two) of the protrusion accommodation recess portions 104 are provided at positions facing the fitting portion 105.
- the plurality of projection receiving recesses 104 are arranged at equal intervals in the circumferential direction of the rotating shaft 14.
- a lid portion 104A is provided on the opening side of the protrusion accommodation concave portion 104, and an insertion hole 104B through which the pin portion 103A is inserted is provided in the lid portion 104A.
- the fitting portion 105 is composed of a plurality of independent concave portions 105A arranged in a row on the inner peripheral side of the mounting cylindrical portion 24, and these independent concave portions 105A are concaved independently of each other in a discontinuous state in the circumferential direction. And are arranged in an annular shape along the circumferential direction.
- the fitting portion 105 is provided at a position facing the engagement protrusion 103 in a state where the rotary atomizing head 21 is attached to the rotary shaft 14.
- the independent concave portion 105A of the fitting portion 105 is formed, for example, by a bottomed hole extending in the radial direction and having a rectangular shape in cross section.
- the number of independent recesses 105A is more than that of the engagement protrusions 103.
- the engagement protrusion 103 may be engaged with an arbitrary independent concave portion 105A facing among the plurality of independent concave portions 105A.
- the alignment between the engagement protrusion 103 and the independent recess 105A is facilitated, and the attachment of the rotary atomizing head 21 is improved.
- Reference numeral 106 denotes an alignment mechanism, which is integrally configured with the rotation control mechanism 101 and the axial displacement control mechanism 102.
- the bottom surface side of the independent recess 105A is formed with an inclined bottom surface 105B in which the groove depth dimension is reduced from the back to the opening side of the mounting cylinder 24. .
- the inclined bottom surface 105B can be in contact with the tip portion of the engagement protrusion 103.
- the alignment protrusion 106 and the inclined bottom surface 105B of the independent recess 105A can constitute an alignment mechanism 106 for aligning the central axis of the rotary atomizing head 21 with the central axis of the rotary shaft 14.
- the same function and effect as those in the first and fifth embodiments can be obtained.
- the rotary atomizing head 21 is displaced in the axial direction and circumferential direction with respect to the rotary shaft 14 by the engagement projection 103 entering the independent recess 105A of the fitting portion 105. Therefore, the engaging protrusion 103 and the fitting portion 105 can have two functions of the rotation restricting mechanism 101 and the axial displacement restricting mechanism 102. For this reason, compared with the case where the rotation restricting mechanism 101 and the axial direction displacement restricting mechanism 102 are separately formed, the attaching shaft portion 15 of the rotating shaft 14 and the attaching cylindrical portion 24 of the rotating atomizing head 21 can be miniaturized. .
- the alignment mechanism 106 is comprised by the inclined bottom face 105B provided in the bottom part side of the independent recessed part 105A. Therefore, when the engaging protrusion 103 is made to project radially outward using centrifugal force by rotation, the tip of the engaging protrusion 103 abuts on the inclined bottom surface 105B of the independent recess 105A. As a result, it is possible to press the rotary atomizing head 21 toward the rotary shaft 14 by the component force generated at the contact point between the engagement protrusion 103 and the inclined bottom surface 105B.
- the inclined inner peripheral surface 24C of the rotary atomizing head 21 is biased toward the inclined outer peripheral surface 15C of the rotary shaft 14, and the central axis of the rotary atomizing head 21 is automatically aligned with the central axis of the rotary shaft 14. be able to.
- the engaging projections 103 are displaced radially outward only by centrifugal force.
- the present invention is not limited to this, and like the sixth embodiment, as in the sixth embodiment, the rotation restricting mechanism 101 'and the axial direction displacement restricting mechanism 102' according to the third modification shown in FIG.
- the first and second spring members 103C 'and 103D' may be attached to 103 'so as to bias the engaging protrusion 103' radially outward.
- the engaging sphere 103 ′ ′ and the fitting portion 105 ′ ′ are the same as in the seventh embodiment. And a magnetic attraction force may be exerted between them.
- the engaging projection 103 is used as the engaging member, it is used as the engaging member as in the eighth embodiment shown in FIG. It may be configured to use an engagement sphere. At this time, a spring member may be attached to the engagement sphere, or a magnetic attraction may be applied between the engagement sphere and the fitting portion.
- FIGS. 29 and 33 show a tenth embodiment.
- the feature of the tenth embodiment resides in that the rotation restricting mechanism and the axial displacement restricting mechanism are provided on the attachment shaft portion of the rotating shaft, and the arm portion that can be bent and deformed in the radial direction with the free end at the tip end side; It consists in the nail
- the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
- the rotation restricting mechanism 111 and 112 respectively indicate a rotation restricting mechanism and an axial displacement restricting mechanism according to the tenth embodiment.
- the rotation restricting mechanism 111 and the axial displacement restricting mechanism 112 include a plurality of arms 113 provided on the mounting shaft 15 of the rotary shaft 14, a claw 114 provided on the tip of the arms 113, and a rotation. It is comprised by the fitting part 115 which consists of several independent recessed part 115A arranged in a line by the mounting cylinder part 24 of the atomization head 21. As shown in FIG.
- a total of ten arms 113 are provided, for example, five on the upper side and five on the lower side, on the outer peripheral side of the cylindrical portion 15A.
- Each arm 113 has its proximal end attached to the outer peripheral surface of the rotary shaft 14 and its distal end extends axially along the distal end of the rotary shaft 14.
- the arm portion 113 is formed of, for example, a flexible metal material or resin material, and the free end portion of the arm portion 113 is radially displaceable.
- a semispherical or semicircular claw portion 114 is attached to a tip end of the arm portion 113, and the claw portion 114 protrudes outward in the radial direction.
- the claws 114 provided on the respective arms 113 are arranged side by side on the same circumference.
- the fitting portion 115 is composed of a plurality of independent recesses 115A arranged in a row on the inner peripheral side of the mounting cylindrical portion 24. These independent recesses 115A are recessed independently of each other in a discontinuous state in the circumferential direction And are arranged in an annular shape along the circumferential direction. At this time, the fitting portion 115 is provided at a position facing the claw portion 114 in a state where the rotary atomizing head 21 is attached to the rotary shaft 14. Further, the independent recess 115A of the fitting portion 115 is formed, for example, by a bottomed hole extending in the radial direction and having a rectangular shape in cross section.
- the claw portion 114 is fitted in the fitting portion 115 in a state of being fixed in the axial direction and the circumferential direction.
- the claw portion 114 and the fitting portion 115 restrict the rotation of the rotary atomizing head 21 in the circumferential direction with respect to the rotation shaft 14 and restrict the axial displacement.
- the arm portion 113 is not necessarily required to have a spring property, and for example, the distal end (the claw portion 114) may be displaced in the radial direction only by the centrifugal force.
- the number of independent recesses 115A of the fitting portion 115 is more than that of the claws 114. For this reason, the claw portion 114 may be engaged with an arbitrary independent recess 115A which faces among the plurality of independent recesses 115A. This facilitates the alignment between the claws 114 and the independent recesses 115A, and the attachment of the rotary atomizing head 21 is improved.
- Reference numeral 117 denotes an alignment mechanism, and the alignment mechanism 117 is configured integrally with the rotation control mechanism 111 and the axial displacement control mechanism 112.
- an inclined surface 116 (inclined wall surface) is formed inside the independent recess 115A, with the groove depth dimension becoming shallower from the back of the mounting cylinder 24 toward the opening. It is done. At this time, the inclined surface 116 can be in contact with the tip end portion of the claw portion 114. Thereby, the inclined surface 116 of the claw portion 114 and the independent concave portion 115A can constitute an alignment mechanism 117 for aligning the central axis of the rotary atomizing head 21 with the central axis of the rotary shaft 14.
- the claws 114 are displaced radially outward by centrifugal force, and the tip portions of the claws 114 contact the inclined surface 116.
- the inner peripheral surface 24C of the rotary atomizing head 21 is the outer peripheral surface of the rotary shaft 14. It is biased toward the surface 15C.
- the rotary atomizing head 21 and the rotary shaft 14 automatically have their rotary axes coincide with each other.
- the alignment mechanism 117 is constituted by the inclined surface 116 provided inside the independent recess 115A. Therefore, when the claw portion 114 is displaced radially outward by the centrifugal force, the tip end of the claw portion 114 abuts on the inclined surface 116 of the independent concave portion 115A, and the rotary atomizing head 21 can be pulled toward the rotary shaft 14. .
- the inclined inner peripheral surface 24C of the rotary atomizing head 21 is biased toward the inclined outer peripheral surface 15C of the rotary shaft 14, and the central axis of the rotary atomizing head 21 is automatically aligned with the central axis of the rotary shaft 14. be able to.
- the first magnetic ring 45 has a magnetic force
- the second magnetic ring 46 has a configuration without a magnetic force
- the present invention is not limited to this.
- the first magnetic ring 45 may have no magnetic force
- the second magnetic ring 46 may have a magnetic force.
- both of the first and second magnetic rings 45 and 46 may have a magnetic force.
- This configuration can also be applied to the fourth and seventh embodiments and the second and fourth modifications.
- two engaging protrusions 65 are provided on the rotating shaft 14.
- the present invention is not limited to this, and one engagement protrusion may be provided on the rotation shaft, or three or more engagement protrusions may be provided on the rotation shaft.
- the rotary atomizing head 21 is applied to a cartridge type rotary atomizing head type coating apparatus 1 by replacing and attaching the cartridge 9 filled with paint for each color.
- the present invention is not limited to this, and may be applied to a rotary atomizing head type coating apparatus in which a feed tube is connected to an external paint supply source or the like. This configuration can be applied to other embodiments and variations as well.
- the present invention is not limited to this.
- an external electrode is provided on the outer peripheral side of the housing, and this external electrode indirectly charges the paint sprayed from the rotary atomizing head to a high voltage indirectly.
- the present invention may be applied to a chemical coating device. This configuration can be applied to other embodiments and modifications as well.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Electrostatic Spraying Apparatus (AREA)
Abstract
Description
13 エアモータ(モータ)
14 回転軸
15 取付軸部
15C 傾斜外周面
21 回転霧化頭
24 取付筒部
24C 傾斜内周面
25,31,41,51,61,71,81,91,101,101′,101″,111 回転規制機構
26,32,42,52,62,72,82,92 雄スプライン部材(雄スプライン)
26A,32A,42A,52A,62A,72A,82A,92A 噛合歯
27,33,43,53,63,73,83,93 雌スプライン部材(雌スプライン)
27A,33A,43A,53A,63A,73A,83A,93A 噛合歯
28,34,44,54,64,74,84,94,94′,94″,102,102′,102″,112 軸方向変位規制機構
35 弾性リング
45 第1の磁性リング(第1の磁性部材)
46 第2の磁性リング(第2の磁性部材)
65,75,85,103,103′,103″ 係合突起(係合部材)
67,77,88,97,97″ 嵌合溝
67A,77A,88A,97A,97A″ 傾斜溝底面
68,78,89,98,106,117 軸合わせ機構
75C,103C′ 第1のばね部材
75D,103D′ 第2のばね部材
95,95′,95″ 係合球体(係合部材)
95A′ ばね部材
105,105″,115 嵌合部
105A,105A″,115A 独立凹部
105B 傾斜底面
113 腕部
114 爪部
116 傾斜面
Claims (11)
- モータ(13)によって回転し先端側が取付軸部(15)となった回転軸(14)と、前部側がベル形またはカップ形に形成され後部側が該回転軸(14)の取付軸部(15)の外周側に取付けられる取付筒部(24)となった回転霧化頭(21)とを備えた回転霧化頭型塗装装置において、
前記回転軸(14)の取付軸部(15)と回転霧化頭(21)の取付筒部(24)との間には、前記回転霧化頭(21)が回転軸(14)に対して周方向に回転するのを規制する回転規制機構(25,31,41,51,61,71,81,91)を設け、
前記回転規制機構(25,31,41,51,61,71,81,91)は、前記回転軸(14)の取付軸部(15)の外周側に設けられ軸方向に向けて延びる複数の噛合歯(26A,32A,42A,52A,62A,72A,82A,92A)からなる雄スプライン(26,32,42,52,62,72,82,92)と、前記回転霧化頭(21)の取付筒部(24)の内周側に設けられ軸方向に向けて延びて前記噛合歯(27A,33A,43A,53A,63A,73A,83A,93A)が噛合する複数の噛合歯からなる雌スプライン(27,33,43,53,63,73,83,93)とによって構成したことを特徴とする回転霧化頭型塗装装置。 - 前記回転軸(14)の取付軸部(15)と回転霧化頭(21)の取付筒部(24)との間には、前記回転霧化頭(21)が回転軸(14)に対して軸方向に変位するのを規制する軸方向変位規制機構(28,34,44,54,64,74,84,94,94′,94″)を設ける構成としてなる請求項1に記載の回転霧化頭型塗装装置。
- 前記軸方向変位規制機構(64,74,84,94,94′,94″)は、前記回転軸(14)の取付軸部(15)の外周側に設けられ径方向外側に向けて変位可能な係合部材(65,75,85)と、前記回転霧化頭(21)の取付筒部(24)の内周側に設けられ周方向に向けて延びると共に該係合部材(65,75,85,95,95′,95″)が進入して嵌合する嵌合溝(67,77,88,97,97″)とによって構成してなる請求項2に記載の回転霧化頭型塗装装置。
- 前記回転軸(14)の取付軸部(15)と回転霧化頭(21)の取付筒部(24)との間には、前記回転霧化頭(21)が回転したときに前記回転霧化頭(21)の内周面を前記回転軸(14)の外周面に向けて押付けて、前記回転霧化頭(21)の中心軸を回転軸(14)の中心軸に合わせる軸合わせ機構(68,78,89,98)を設ける構成としてなる請求項3に記載の回転霧化頭型塗装装置。
- 前記軸合わせ機構(68,78,89,98)は、前記嵌合溝(67,77,88,97,97″)の底部側に設けられ前記取付筒部(15)の奥部側から開口側に向けて溝深さ寸法が浅くなった傾斜溝底面(67A,77A,88A,97A,97A″)によって構成してなる請求項4に記載の回転霧化頭型塗装装置。
- モータ(13)によって回転し先端側が取付軸部(15)となった回転軸(14)と、前部側がベル形またはカップ形に形成され後部側が該回転軸(14)の取付軸部(15)の外周側に取付けられる取付筒部となった回転霧化頭(21)とを備えた回転霧化頭型塗装装置において、
前記回転軸(14)の取付軸部(15)と回転霧化頭(21)の取付筒部(24)との間には、前記回転霧化頭(21)が回転軸(14)に対して周方向に回転するのを規制する回転規制機構(101,101′,101″)を設け、
前記回転軸(14)の取付軸部(15)と回転霧化頭(21)の取付筒部(24)との間には、前記回転霧化頭(21)が回転軸(14)に対して軸方向に変位するのを規制する軸方向変位規制機構(102,102′,102″)を設け、
前記回転規制機構(101,101′,101″)および軸方向変位規制機構(102,102′,102″)は、前記回転軸(14)の取付軸部(15)の外周側に設けられ径方向外側に向けて変位可能な1個または複数個の係合部材(103,103′,103″)と、前記回転霧化頭(21)の取付筒部(24)の内周側に列設された複数個の独立凹部(105A,105A″)からなり該係合部材(103,103′,103″)が進入したときに該係合部材(103,103′,103″)が軸方向および周方向に対して固定した状態で嵌合する嵌合部(105,105″)とによって構成したことを特徴とする回転霧化頭型塗装装置。 - 前記回転軸(14)の取付軸部(15)と回転霧化頭(21)の取付筒部(24)との間には、前記回転霧化頭(21)が回転したときに前記回転霧化頭(21)の内周面を前記回転軸(14)の外周面に向けて押付けて、前記回転霧化頭(21)の中心軸を回転軸(14)の中心軸に合わせる軸合わせ機構(106)を設ける構成としてなる請求項6に記載の回転霧化頭型塗装装置。
- 前記軸合わせ機構(106)は、前記嵌合部(105,105″)の独立凹部(105A,105A″)の底部側に設けられ前記取付筒部(24)の奥部側から開口側に向けて深さ寸法が浅くなった傾斜底面(105B)によって構成してなる請求項7に記載の回転霧化頭型塗装装置。
- モータ(13)によって回転し先端側が取付軸部(15)となった回転軸(14)と、前部側がベル形またはカップ形に形成され後部側が該回転軸(14)の取付軸部(15)の外周側に取付けられる取付筒部(24)となった回転霧化頭(21)とを備えた回転霧化頭型塗装装置において、
前記回転軸(14)の取付軸部(15)と回転霧化頭(21)の取付筒部(24)との間には、前記回転霧化頭(21)が回転軸(14)に対して周方向に回転するのを規制する回転規制機構(111)を設け、
前記回転軸(14)の取付軸部(15)と回転霧化頭(21)の取付筒部(24)との間には、前記回転霧化頭(21)が回転軸(14)に対して軸方向に変位するのを規制する軸方向変位規制機構(112)を設け、
前記回転規制機構(111)および軸方向変位規制機構(112)は、前記回転軸(14)の取付軸部(15)の外周側に設けられ先端側が自由端となって径方向に撓み変形可能な腕部(113)と、該腕部(113)の先端に設けられ径方向外側に向けて突出した爪部(114)と、前記回転霧化頭(21)の取付筒部(24)の内周側に列設された複数個の独立凹部(115A)からなり該爪部(114)が進入したときに該爪部(114)が軸方向および周方向に対して固定した状態で嵌合する嵌合部(115)とによって構成したことを特徴とする回転霧化頭型塗装装置。 - 前記回転軸(14)の取付軸部(15)と回転霧化頭(21)の取付筒部(24)との間には、前記回転霧化頭(21)が回転したときに前記回転霧化頭(21)の内周面を前記回転軸(14)の外周面に向けて押付けて、前記回転霧化頭(21)の中心軸を回転軸(14)の中心軸に合わせる軸合わせ機構(117)を設ける構成としてなる請求項9に記載の回転霧化頭型塗装装置。
- 前記軸合わせ機構(117)は、前記嵌合部(115)の独立凹部(115A)の内側に設けられ前記取付筒部(24)の奥部側から開口側に向けて深さ寸法が浅くなった傾斜面(116)によって構成してなる請求項10に記載の回転霧化頭型塗装装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09766504.6A EP2305387B1 (en) | 2008-06-16 | 2009-05-21 | Rotary atomizing head type coating device |
KR1020107014860A KR101235072B1 (ko) | 2008-06-16 | 2009-05-21 | 회전 분무화 헤드형 도장 장치 |
US12/811,127 US8720796B2 (en) | 2008-06-16 | 2009-05-21 | Rotary atomizing head type coating device |
JP2010517823A JP5138035B2 (ja) | 2008-06-16 | 2009-05-21 | 回転霧化頭型塗装装置 |
CN200980107649.0A CN101959608B (zh) | 2008-06-16 | 2009-05-21 | 旋转雾化头型涂装装置 |
US14/196,781 US20140183277A1 (en) | 2008-06-16 | 2014-03-04 | Rotary atomizing head type coating device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-156581 | 2008-06-16 | ||
JP2008156581 | 2008-06-16 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/811,127 A-371-Of-International US8720796B2 (en) | 2008-06-16 | 2009-05-21 | Rotary atomizing head type coating device |
US14/196,781 Division US20140183277A1 (en) | 2008-06-16 | 2014-03-04 | Rotary atomizing head type coating device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009154056A1 true WO2009154056A1 (ja) | 2009-12-23 |
Family
ID=41433972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/059353 WO2009154056A1 (ja) | 2008-06-16 | 2009-05-21 | 回転霧化頭型塗装装置 |
Country Status (6)
Country | Link |
---|---|
US (2) | US8720796B2 (ja) |
EP (3) | EP2305387B1 (ja) |
JP (1) | JP5138035B2 (ja) |
KR (1) | KR101235072B1 (ja) |
CN (2) | CN102989610B (ja) |
WO (1) | WO2009154056A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013500147A (ja) * | 2009-07-24 | 2013-01-07 | デュール システムズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | アトマイザーベルおよび固定具を備える回転アトマイザー |
WO2016190027A1 (ja) * | 2015-05-25 | 2016-12-01 | Abb株式会社 | 回転霧化頭型塗装機 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8851397B1 (en) * | 2013-11-14 | 2014-10-07 | Efc Systems, Inc. | Bell cup atomizer having improved cleaning capability |
KR101634298B1 (ko) * | 2016-01-20 | 2016-06-30 | 박상은 | 더블 벨컵 |
EP3492178B1 (en) * | 2016-07-28 | 2024-02-14 | Hitachi Systems, Ltd. | Rotary atomizing head, rotary atomizing head managing system, and rotary atomizing head managing method |
DE102017102965A1 (de) | 2017-02-15 | 2018-09-06 | Eisenmann Se | Applikationsvorrichtung und Applikationssystem |
DE102017212480B4 (de) * | 2017-07-20 | 2022-06-09 | Audi Ag | Rotationszerstäuber mit verbessertem Befestigungssystem für den Glockenteller |
DE102019107847B4 (de) * | 2019-03-27 | 2021-09-23 | Dürr Systems Ag | Glockenteller, Rotationszerstäuber, Lackierroboter, Zerstäuber-Reinigungsgerät und zugehörige Betriebsverfahren |
GB2616744B (en) * | 2020-09-22 | 2024-05-01 | Novanta Tech Uk Limited | Rotary atomisers |
GB2598957B (en) * | 2020-09-22 | 2023-07-05 | Novanta Tech Uk Limited | Rotary atomisers |
CN112295787B (zh) * | 2020-10-22 | 2022-06-14 | 柳州市玉邦机械制造有限公司 | 一种涂装用喷涂加工设备 |
DE202021105086U1 (de) * | 2021-09-21 | 2021-09-28 | Albert Planert | Rotationszerstäuber |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0471656A (ja) | 1990-07-11 | 1992-03-06 | Toyota Motor Corp | 回転霧化静電塗装装置 |
JPH08503416A (ja) | 1992-12-01 | 1996-04-16 | サム ソシエテ アノニム | 回転噴霧部材を有する被覆剤噴射装置及び回転噴霧部材着脱用工具 |
JPH1128391A (ja) | 1997-07-10 | 1999-02-02 | Abb Ind Kk | 回転霧化頭型塗装装置 |
JP2002166199A (ja) * | 2000-11-30 | 2002-06-11 | Abb Kk | 回転霧化頭型塗装装置 |
JP2002224593A (ja) * | 2000-11-30 | 2002-08-13 | Abb Kk | 回転霧化頭 |
JP2002248382A (ja) | 2000-12-20 | 2002-09-03 | Abb Kk | 回転霧化頭型塗装装置 |
US20030075617A1 (en) | 2001-03-29 | 2003-04-24 | Michael Baumann | Rotary atomizer having a locking shaft |
JP2003524523A (ja) * | 2000-02-21 | 2003-08-19 | サム テクノロジーズ | 塗布物質をスプレーする装置及びそのスプレー回転要素 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01128391A (ja) | 1987-11-11 | 1989-05-22 | Sharp Corp | 高周波加熱装置 |
GB2321945A (en) * | 1997-02-11 | 1998-08-12 | Rover Group | Male connector located by spring ring in circumferential groove. |
WO2002043873A1 (en) * | 2000-11-30 | 2002-06-06 | Abb K. K. | Rotary atomizing head |
DE10205996B4 (de) * | 2002-02-14 | 2004-03-04 | Zf Sachs Ag | Drehmitnahme-Steckverbindung zur Momentenübertragung in einem Kraftfahrzeug-Antriebsstrang |
EP1539363B1 (fr) | 2002-09-11 | 2008-06-18 | Tordable S.A. | Dispositif de pulverisation de liquide et machine agricole equipee d' au moins un dispositif |
JP4428973B2 (ja) * | 2003-09-10 | 2010-03-10 | トヨタ自動車株式会社 | 回転霧化塗装装置および塗装方法 |
US7654472B2 (en) * | 2005-10-21 | 2010-02-02 | Durr Systems, Inc. | Rotary atomizer with a spraying body |
US20070104535A1 (en) * | 2005-11-09 | 2007-05-10 | Brian Valovick | Spline interconnect |
-
2009
- 2009-05-21 EP EP09766504.6A patent/EP2305387B1/en not_active Not-in-force
- 2009-05-21 EP EP12001842.9A patent/EP2474366B1/en not_active Not-in-force
- 2009-05-21 JP JP2010517823A patent/JP5138035B2/ja not_active Expired - Fee Related
- 2009-05-21 CN CN201210537547.6A patent/CN102989610B/zh not_active Expired - Fee Related
- 2009-05-21 WO PCT/JP2009/059353 patent/WO2009154056A1/ja active Application Filing
- 2009-05-21 US US12/811,127 patent/US8720796B2/en active Active
- 2009-05-21 CN CN200980107649.0A patent/CN101959608B/zh not_active Expired - Fee Related
- 2009-05-21 EP EP12001843.7A patent/EP2474367B1/en not_active Not-in-force
- 2009-05-21 KR KR1020107014860A patent/KR101235072B1/ko not_active IP Right Cessation
-
2014
- 2014-03-04 US US14/196,781 patent/US20140183277A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0471656A (ja) | 1990-07-11 | 1992-03-06 | Toyota Motor Corp | 回転霧化静電塗装装置 |
JPH08503416A (ja) | 1992-12-01 | 1996-04-16 | サム ソシエテ アノニム | 回転噴霧部材を有する被覆剤噴射装置及び回転噴霧部材着脱用工具 |
JPH1128391A (ja) | 1997-07-10 | 1999-02-02 | Abb Ind Kk | 回転霧化頭型塗装装置 |
JP2003524523A (ja) * | 2000-02-21 | 2003-08-19 | サム テクノロジーズ | 塗布物質をスプレーする装置及びそのスプレー回転要素 |
JP2002166199A (ja) * | 2000-11-30 | 2002-06-11 | Abb Kk | 回転霧化頭型塗装装置 |
JP2002224593A (ja) * | 2000-11-30 | 2002-08-13 | Abb Kk | 回転霧化頭 |
JP2002248382A (ja) | 2000-12-20 | 2002-09-03 | Abb Kk | 回転霧化頭型塗装装置 |
US20030075617A1 (en) | 2001-03-29 | 2003-04-24 | Michael Baumann | Rotary atomizer having a locking shaft |
Non-Patent Citations (1)
Title |
---|
See also references of EP2305387A4 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013500147A (ja) * | 2009-07-24 | 2013-01-07 | デュール システムズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | アトマイザーベルおよび固定具を備える回転アトマイザー |
WO2016190027A1 (ja) * | 2015-05-25 | 2016-12-01 | Abb株式会社 | 回転霧化頭型塗装機 |
JPWO2016190027A1 (ja) * | 2015-05-25 | 2018-06-07 | Abb株式会社 | 回転霧化頭型塗装機 |
Also Published As
Publication number | Publication date |
---|---|
EP2305387A4 (en) | 2011-11-23 |
EP2474367B1 (en) | 2014-06-25 |
EP2474366A1 (en) | 2012-07-11 |
EP2474367A1 (en) | 2012-07-11 |
CN102989610A (zh) | 2013-03-27 |
KR101235072B1 (ko) | 2013-02-19 |
US20140183277A1 (en) | 2014-07-03 |
US8720796B2 (en) | 2014-05-13 |
CN102989610B (zh) | 2015-03-11 |
KR20100088709A (ko) | 2010-08-10 |
JPWO2009154056A1 (ja) | 2011-11-24 |
US20100282865A1 (en) | 2010-11-11 |
CN101959608A (zh) | 2011-01-26 |
JP5138035B2 (ja) | 2013-02-06 |
EP2305387A1 (en) | 2011-04-06 |
EP2474366B1 (en) | 2014-10-22 |
CN101959608B (zh) | 2013-05-22 |
EP2305387B1 (en) | 2016-08-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2009154056A1 (ja) | 回転霧化頭型塗装装置 | |
US10399096B2 (en) | Rotary atomizing head type coating machine | |
EP0818243B1 (en) | Electrostatic coating apparatus | |
CN102803754B (zh) | 涂覆剂装置和涂覆装置 | |
US7654472B2 (en) | Rotary atomizer with a spraying body | |
US20100206962A1 (en) | Rotary atomizer with a spraying body | |
JP5775968B2 (ja) | 回転霧化頭型塗装機 | |
KR101840746B1 (ko) | 분무기 벨 및 리테이너를 포함하는 회전형 분무기 | |
KR100320344B1 (ko) | 회전무화헤드형 도장장치 | |
WO2002051554A1 (fr) | Machine à enduire de type tête de pulvérisation rotative | |
US5897060A (en) | Rotary atomizing head assembly | |
JPH1128391A (ja) | 回転霧化頭型塗装装置 | |
JP5330761B2 (ja) | 回転霧化頭型塗装装置 | |
JP2002166199A (ja) | 回転霧化頭型塗装装置 | |
JP6179002B2 (ja) | 回転霧化頭型塗装機 | |
JP2002224593A (ja) | 回転霧化頭 | |
JPH11262696A (ja) | 回転霧化頭型塗装装置 | |
JP2002248382A (ja) | 回転霧化頭型塗装装置 | |
JP2014213273A (ja) | 回転霧化式塗装装置 | |
CN118663484A (zh) | 旋转雾化器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980107649.0 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09766504 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2010517823 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12811127 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 20107014860 Country of ref document: KR Kind code of ref document: A |
|
REEP | Request for entry into the european phase |
Ref document number: 2009766504 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009766504 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |