CN217963023U

CN217963023U - Air-float electrostatic rotary cup

Info

Publication number: CN217963023U
Application number: CN202221978230.1U
Authority: CN
Inventors: 蒋启明; 余蜀湘; 刘辉
Original assignee: Karon Precise Product Shenzhen Co ltd
Current assignee: Karon Precise Product Shenzhen Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-12-06
Anticipated expiration: 2032-07-27

Abstract

The utility model provides an air supporting static revolves cup, include: the device comprises a cup head, a rotor, an impeller, a stator and a coating pipe; the rotor is arranged in the stator in a penetrating manner, and the cup head and the impeller are respectively arranged at the left end and the right end of the rotor; the rotor is provided with a first channel penetrating left and right, and the coating pipe penetrates through the first channel and is used for conveying coating to the cup head; the outer wall of the rotor is provided with a first dynamic pressure groove, the side wall of the stator is provided with a plurality of static pressure micropores which radially penetrate through the side wall, the impeller rotates under the pushing of gas to drive the rotor and the cup head to rotate, the gas enters from the static pressure micropores, and a gas film is formed between the rotor and the inner wall of the stator. The utility model discloses an air supporting rotor and air supporting stator have a little high-pressure air film to play the supporting role at rotatory in-process, rotate the in-process and do not have the entity contact, so high-speed the rotation can not produce the friction yet and produce the heat and warp, use when the air supporting to revolve the life-span of cup and be superior to the bearing and revolve the cup.

Description

Air-float electrostatic rotary cup

Technical Field

The utility model relates to a spraying equipment technical field, concretely relates to air supporting static revolves cup.

Background

The coating of the air-float electrostatic rotary cup is that a metal cup with a sharp edge rotates at a high speed to generate centrifugal force to atomize coating, the rotary cup is provided with negative high-voltage electrostatic charge, sufficient corona discharge is generated at the edge of the cup opening of the rotary cup, when the coating is sent to the inner wall of the rotary cup, the coating is diffused to the periphery under the action of the centrifugal force to form a uniform film state and flows along the tangential direction of the rotary cup opening, the coating is further atomized into coating particles under the splitting action of strong electric field force, meanwhile, the coating particles also obtain negative charges to form negative ion-shaped coating particles, and under the action of the electric field force, the centrifugal force and the molding air, the coating particles are rapidly adsorbed to the surface of a workpiece with good grounding in an arc shape, so that the coating is uniformly and firmly adsorbed on the surface of the workpiece;

however, when the existing rotor rotates, the high-speed rotation is carried out only through rigid support of the bearing, the steel ball friction of the bearing is intensified along with the increase of the rotating speed, the temperature is increased, the abrasion of the bearing is increased, and the concentric vibration of the bearing is influenced;

therefore, a new device is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists, the utility model provides an air supporting static revolves cup.

In order to achieve the above purpose, the specific scheme of the utility model is as follows:

the utility model provides an air supporting static revolves cup, include: the device comprises a cup head, a rotor, an impeller, a stator and a coating pipe;

the rotor is arranged in the stator in a penetrating mode, and the cup head and the impeller are respectively arranged at the left end and the right end of the rotor; the rotor is provided with a first channel penetrating left and right, and the coating pipe penetrates through the first channel and is used for conveying coating to the cup head;

the outer wall of the rotor is provided with a first dynamic pressure groove, the side wall of the stator is provided with a plurality of static pressure micropores which penetrate through the side wall from the radial direction,

the impeller rotates under the push of gas to drive the rotor and the cup head to rotate, the gas enters from the static pressure micropores, and a gas film is formed between the rotor and the inner wall of the stator;

the cup head is provided with negative high-voltage static charges.

Furthermore, a disc surface is sleeved at the left end of the rotor, and the disc surface and the impeller are respectively positioned at the left side and the right side of the stator;

the left end surface and the right end surface of the stator are both provided with a second dynamic pressure groove,

the impeller drives the rotor and the disk surface to rotate together, and air films are formed between the disk surface and the impeller and between the disk surface and the left end surface and the right end surface of the stator respectively.

Furthermore, the stator is installed on a first installation seat, sealing rings are arranged on the inner side of the first installation seat, the middle part and the left and right ends of the stator, and a plurality of air holes are formed in the inner wall of the installation seat and used for allowing air to enter between the stator and the rotor from static pressure micro holes in the stator.

Furthermore, the right end of the first mounting seat is also provided with an adapter plate for guiding gas into the first mounting seat.

Further, the cup head is sleeved with an air nozzle, the air nozzle is provided with a circle of conical air holes towards the left side in an evenly distributed mode, and therefore air can form an air hood towards a certain intersection point in the center of the cup head.

Further, the jet head outside still is provided with a second mount pad, the jet head is installed on the second mount pad, the second mount pad is installed on first mount pad, the gas pocket intercommunication in second mount pad and the first mount pad provides gas for the jet head through the gas pocket.

Furthermore, a material blocking disc is further arranged in the middle of the cup head, and the coating provided by the coating tube is blocked by the material blocking disc, flows to the cup head after rotating, and is thrown out from the edge of the cup head.

Furthermore, the right end of the coating pipe is also connected with a coating three-way valve for controlling the switch of coating conveying.

Further, a sleeve is sleeved outside the rotor and the stator, a left end cover and a right end cover are respectively arranged on two sides of the sleeve, and the left end of the cup head and the conical air hole of the air nozzle are located on the outer side of the left end cover.

Furthermore, the right end cover is also provided with an installation handle.

Adopt the technical scheme of the utility model, following beneficial effect has:

1. the air-floating rotor and the air-floating stator are adopted, a tiny high-pressure air film plays a supporting role in the rotation process, and the rotation process is not in physical contact, so that the high-speed rotation can not generate friction to generate heat deformation, and the service life of the properly used air-floating rotary cup is far superior to that of a bearing rotary cup;

2. the high-pressure air is adopted to realize the thrust of the end surface of the electrostatic air flotation rotary cup and the static pressure suspension of the shaft, and when the pressure of an air source is unexpected and no air source exists, the air flotation rotary cup can be safely stopped at a reduced speed through the dynamic pressure generated by the high-speed rotation of the rotary cup, so that the rotary cup is prevented from being damaged;

3. the end face of the stator is provided with an annular groove with a certain depth, when the disk surfaces at the front and the back of the rotor and the impeller rotate at high speed, the dynamic pressure effect is generated between the two end faces due to the high-speed stirring of airflow to generate a thrust effect, and when the rotating speed reaches a certain rotating speed, the stable rotation of the air floatation rotor can be maintained by means of the dynamic pressure generated by the high-speed rotation of the air floatation rotor;

4 a circle of conical air holes are uniformly distributed around the cup head, so that the air is towards a certain intersection point in the center of the cup head to form an air hood.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is a perspective view of the mover of the present invention;

fig. 5 is a perspective view of the stator of the present invention.

In the figure: 1. a cup head; 2. a mover; 3. an impeller; 4. a stator; 5. a coating tube; 6. a first dynamic pressure groove; 7. static pressure micropore; 8. a disk surface; 9. a second dynamic pressure groove; 10. a first mounting seat; 11. a seal ring; 12. a switching disk; 13. a gas showerhead; 14. a conical air hole is encircled; 15. a second mounting seat; 16. a material blocking disc; 17. a paint three-way valve; 18. a sleeve; 19. a left end cap; 20. a right end cap; 21. and (5) installing a handle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "front", "rear", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1-2, the utility model provides an air-float electrostatic rotary cup, comprising: the device comprises a cup head 1, a rotor 2, an impeller 3, a stator 4 and a coating pipe 5; the rotor 2 is arranged in the stator 4 in a penetrating manner, and the cup head 1 and the impeller 3 are respectively arranged at the left end and the right end of the rotor 2; the rotor 2 is provided with a first channel penetrating left and right, and the coating pipe 5 penetrates the first channel and is used for conveying coating to the cup head 1; a first dynamic pressure groove 6 is formed in the outer wall of the rotor 2, a plurality of static pressure micropores 7 which penetrate through the side wall from the radial direction are formed in the side wall of the stator 4, the impeller 3 rotates under the pushing of air to drive the rotor 2 and the cup head 1 to rotate, the air enters from the static pressure micropores 7, and an air film is formed between the rotor 2 and the inner wall of the stator 4; the cup head 1 is provided with negative high-voltage static charges, the left end of the rotor 2 is further sleeved with a disc surface 8, and the disc surface 8 and the impeller 3 are respectively positioned on the left side and the right side of the stator 4; the left end face and the right end face of the stator 4 are both provided with second dynamic pressure grooves 9, the impeller 3 drives the rotor 2 and the disc surface 8 to rotate together, and air films are formed between the disc surface 8 and the impeller 3 and the left end face and the right end face of the stator 4 respectively.

The stator 4 is installed on a first installation seat 10, sealing rings 11 are arranged on the inner side of the first installation seat 10 and the middle part and the left and right ends of the stator 4, a plurality of air holes are formed in the inner wall of the installation seat and used for providing air to enter between the stator 4 and the rotor 2 from static pressure micro holes 7 in the stator 4, a transfer disc 12 is further arranged at the right end of the first installation seat 10 and used for guiding the air into the first installation seat 10, an air nozzle 13 is sleeved on the cup head 1, a circle of conical air holes 14 are uniformly distributed towards the left side of the air nozzle 13, so that the air can form an air hood towards a certain intersection point in the center of the cup head 1, a second installation seat 15 is further arranged on the outer side of the air nozzle 13, and the air nozzle 13 is installed on the second installation seat 15, second mount pad 15 is installed on first mount pad 10, the gas pocket intercommunication in second mount pad 15 and the first mount pad 10 provides gas for jet-propelled head 13 through the gas pocket, still be provided with a fender charging tray 16 in the middle of the cup 1, the coating that coating pipe 5 provided is blocked by fender charging tray 16, and rotatory back flow direction cup 1, then throw away from the cup 1 edge, the right-hand member of coating pipe 5 still is connected with a coating three-way valve 17 for the switch that control coating was carried, active cell 2 and stator 4 outside cover are equipped with a sleeve 18, the both sides of sleeve 18 are provided with left end lid 19 and right-hand member lid 20 respectively, the left end of cup 1 and the conical gas pocket of jet-propelled head 13 are located the left end outside of left end lid 19, still be provided with installation handle 21 on the right-hand member lid 20.

The principle of the utility model is as follows:

the rotor 2 is arranged in the stator 4 in a penetrating manner, and the cup head 1 and the impeller 3 are respectively arranged at the left end and the right end of the rotor 2; the rotor 2 is provided with a first channel penetrating left and right, and the coating pipe 5 penetrates the first channel and is used for conveying coating to the cup head 1; a first dynamic pressure groove 6 is formed in the outer wall of the rotor 2, a plurality of static pressure micropores 7 which penetrate through the side wall from the radial direction are formed in the side wall of the stator 4, the impeller 3 is pushed by gas to rotate, the impeller 3 drives the rotor 2 and the cup head 1 to rotate, and the gas enters the space between the rotor 2 and the inner wall of the stator 4 from the static pressure micropores 7 to form a gas film; the cup head 1 is provided with negative high-voltage static charges; the left end of the rotor 2 is also sleeved with a disk surface 8, and the disk surface 8 and the impeller 3 are respectively positioned on the left side and the right side of the stator 4; the left end face and the right end face of the stator 4 are both provided with second dynamic pressure grooves 9, the impeller 3 drives the rotor 2 and the disc surface 8 to rotate together, and air films are formed between the disc surface 8 and the impeller 3 and the left end face and the right end face of the stator 4 respectively.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the protection scope of the present invention.

Claims

1. Air supporting static revolves cup, its characterized in that includes: the device comprises a cup head (1), a rotor (2), an impeller (3), a stator (4) and a coating pipe (5);

the rotor (2) penetrates through the stator (4), and the cup head (1) and the impeller (3) are respectively installed at the left end and the right end of the rotor (2); the rotor (2) is provided with a first channel penetrating left and right, and the coating pipe (5) is arranged in the first channel in a penetrating mode and used for conveying coating to the cup head (1);

a first dynamic pressure groove (6) is arranged on the outer wall of the rotor (2), a plurality of static pressure micropores (7) which penetrate through the side wall from the radial direction are arranged on the side wall of the stator (4),

the impeller (3) rotates under the push of air, the rotor (2) and the cup head (1) are driven to rotate, air enters from the static pressure micropores (7), and an air film is formed between the rotor (2) and the inner wall of the stator (4).

2. The air-flotation electrostatic rotary cup as claimed in claim 1, wherein a disc surface (8) is further sleeved on the left end of the rotor (2), and the disc surface (8) and the impeller (3) are respectively located on the left side and the right side of the stator (4);

the left end surface and the right end surface of the stator (4) are both provided with a second dynamic pressure groove (9),

the impeller (3) drives the rotor (2) and the disc surface (8) to rotate together, and air films are formed between the disc surface (8) and the left end face and between the impeller (3) and the right end face of the stator (4) respectively.

3. The air-floating electrostatic spinning cup according to claim 2, wherein the stator (4) is installed on a first installation seat (10), the inner side of the first installation seat (10) and the middle part and the left and right ends of the stator (4) are provided with sealing rings (11), and the inner wall of the installation seat is provided with a plurality of air holes for supplying air from the static pressure micropores (7) on the stator (4) to the space between the stator (4) and the rotor (2).

4. The electrostatic spinning cup as claimed in claim 3, characterized in that the right end of the first mounting seat (10) is further provided with an adapter plate (12) for introducing gas into the first mounting seat (10).

5. The air-floating electrostatic spinning cup according to claim 4, characterized in that the cup head (1) is sleeved with an air-jet head (13), and a circle of conical air holes (14) are uniformly distributed on the air-jet head (13) towards the left side, so that the air is directed towards a certain intersection point at the center of the cup head (1) to form an air hood.

6. The electrostatic spinning cup as claimed in claim 5, wherein a second mounting seat (15) is further disposed outside the gas spraying head (13), the gas spraying head (13) is mounted on the second mounting seat (15), the second mounting seat (15) is mounted on the first mounting seat (10), and the second mounting seat (15) is communicated with the air hole in the first mounting seat (10) to provide air for the gas spraying head (13) through the air hole.

7. The air-floating electrostatic spinning cup as claimed in claim 1, wherein a material blocking disc (16) is further disposed in the middle of the cup head (1), and the coating material provided by the coating tube (5) is blocked by the material blocking disc (16), rotates to flow toward the cup head (1), and is thrown out from the edge of the cup head (1).

8. The air-flotation electrostatic spinning cup as claimed in claim 1, wherein a coating three-way valve (17) is further connected to the right end of the coating tube (5) for controlling a switch for coating delivery.

9. The air-floating electrostatic spinning cup as claimed in claim 5, wherein a sleeve (18) is sleeved outside the rotor (2) and the stator (4), a left end cover (19) and a right end cover (20) are respectively arranged on two sides of the sleeve (18), and the left end of the cup head (1) and the conical air holes of the air nozzle (13) are located outside the left end of the left end cover (19).

10. The air-floating electrostatic spinning cup according to claim 9, characterized in that a mounting handle (21) is further arranged on the right end cover (20).