Powder rotary cup gun head

Abstract

The utility model provides a powder rotary cup gun head, which relates to the technical field of powder spraying and comprises a locking component and a rotary spray head component rotationally connected with the locking component, the locking component comprises an external locking piece and an internal locking piece, a mounting groove with an opening on one side is arranged on the external locking piece, and the internal locking piece is arranged on the mounting groove. A ventilation sleeve is installed on the outer side of the bottom wall of the installation groove in the external locking piece in an outward extending mode, a connecting piece is fixedly installed on the side wall, away from the external locking piece, in the ventilation sleeve, and a locking piece is installed on the outer wall of the side, away from the ventilation sleeve, in the connecting piece in a threaded locking mode. The rotating nozzle assembly penetrates through the ventilation sleeve, the connecting piece and the locking piece and then is rotationally installed at the bottom of the locking piece, a spraying core is arranged in the rotating nozzle assembly, and a diffusion opening is formed in the bottom of the rotating nozzle assembly. By arranging the rotary spray head assembly, molding powder can be more uniformly adsorbed on the surface of a part, so that the plastic spraying time is shortened, and the plastic spraying efficiency of the part is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder spraying, in particular to a powder rotary cup gun head. Background Art

[0002] Plastic powder is a thermosetting powder coating for electrostatic spraying. Plastic powder and paint are two different processes. Plastic powder has good spraying effect, low cost, bright color and beautiful appearance, while paint is more expensive and the effect after spraying is average. Therefore, in an environment with relatively low corrosiveness, users generally choose plastic powder for spraying on the surface of parts.

[0003] During the spraying process, users generally use a powder gun to spray the surface of parts with powder. However, the gun head of the existing spray gun cannot rotate during the spraying process, resulting in uneven spraying of powder on the surface of the parts. Users are required to spray repeatedly, which prolongs the spraying time and reduces the efficiency of spraying powder on the surface of the parts. Utility Model Content

[0004] In order to solve the technical problem that the gun head of the prior art spray gun cannot rotate during the spraying process, resulting in uneven spraying of plastic powder on the surface of the part, the utility model provides a powder rotary cup gun head;

[0005] The utility model provides a powder rotary cup gun head adopts the following technical solution:

[0006] A powder rotary cup gun head, comprising a locking assembly and a rotary spray head assembly rotatably connected to the locking assembly, characterized in that the locking assembly comprises an external locking piece and an internal locking piece, a mounting groove with an opening on one side is provided on the external locking piece, the internal locking piece is detachably installed in the mounting groove, the mounting groove in the external locking piece has a bottom wall, a ventilation sleeve is installed on the outer side of the bottom wall of the mounting groove in the external locking piece extending outward, a connecting piece is fixedly installed on the side wall of the ventilation sleeve away from the external locking piece, a locking piece is installed on the outer wall of the connecting piece on one side away from the ventilation sleeve through threaded locking, the rotary spray head assembly passes through the ventilation sleeve, the connecting piece and the locking piece and is rotatably installed at the bottom of the locking piece, a spray core for guiding plastic powder is provided at the center position of the rotary spray head assembly, and a diffusion port is provided at the bottom of the rotary spray head assembly.

[0007] Furthermore, the rotating nozzle assembly includes a rotating connecting sleeve and a nozzle shell. The rotating connecting sleeve is rotatably arranged inside the ventilation sleeve, the connecting piece and the locking piece. The nozzle shell is installed at the bottom of the rotating connecting sleeve through threaded locking. The bottom of the nozzle shell has a diffusion port.

[0008] Furthermore, a through hole is provided inside the internal locking member, and threads are provided around the inner wall of the through hole.

[0009] Furthermore, the external locking piece is a cylindrical structure, and a protrusion is provided on the inner wall of the mounting groove in the external locking piece, and a snap-in slide is provided on the outer wall of the internal locking piece. The protrusion is inserted into the snap-in slide so that the internal locking piece can be removably installed in the mounting groove in the external locking piece.

[0010] Furthermore, the connecting piece has a connecting through hole inside, and a positioning boss is protruding inward around the inner wall of the connecting through hole. A first bearing and a second bearing are respectively installed on both sides of the positioning boss, and the rotating spray head assembly is arranged inside the first bearing and the second bearing, so that the rotating spray head assembly forms a rotational connection with the locking assembly, the ventilation sleeve, the connecting piece and the locking piece.

[0011] Furthermore, a retaining spring for fixing the position of the second bearing is installed on the side wall of the rotating connecting sleeve.

[0012] Furthermore, a wind wheel is arranged at the top of the rotating connecting sleeve, an air inlet is arranged at the top of the side wall of the ventilation sleeve, and an air outlet is arranged at the bottom of the side wall of the ventilation sleeve, and the positions of the air inlet and the air outlet correspond to each other.

[0013] Furthermore, a nozzle cover is installed at the bottom of the nozzle shell, a partition is installed between the nozzle cover and the nozzle shell, and a diffusion port is formed on the outer wall of the nozzle cover and the partition and the inner wall of the nozzle shell.

[0014] Furthermore, the spray core extends into the interior of the spray head housing through the locking assembly, the vent sleeve, the connector, the locking member and the rotating connecting sleeve, and a conductive tube body is installed around the outer wall of the spray core by threaded locking. The conductive tube body passes through the bottom wall of the mounting groove in the external locking member and is fixedly installed on the side wall of the vent sleeve, and the bottom wall of the conductive tube body passes through the bottom wall of the spray core and then extends outward.

[0015] Furthermore, the conductive tube body is made of conductive metal material.

[0016] In summary, the beneficial effects of the utility model are:

[0017] The utility model arranges a rotary nozzle assembly. When in use, the plastic powder gun contacts the conductive tube body, so that the static electricity of the plastic powder gun is transmitted to the conductive tube body, and the airflow drives the wind wheel in the rotary nozzle assembly to rotate through the air inlet, so that the rotary nozzle assembly rotates, and the plastic powder in the plastic powder gun passes through the spray core and contacts the bottom wall of the conductive tube body, so that the plastic powder is charged with static electricity, and then the plastic powder is rotated and sprayed out through the diffusion port at the bottom of the nozzle shell. The rotary cup gun head with this structure can make the plastic powder more evenly adsorbed on the surface of the part, thereby reducing the time of spraying and improving the efficiency of spraying the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic cross-sectional view of the utility model;

[0020] Figure 3 It is a schematic diagram of an exploded view of the utility model.

[0021] In the figure: 1-locking assembly; 2-rotating nozzle assembly; 3-ventilation sleeve; 4-connecting piece; 5-locking piece; 6-first bearing; 7-second bearing; 8-circlip; 9-conductive tube body; 10-spray core; 101-external locking piece; 102-internal locking piece; 201-nozzle housing; 202-rotating connecting sleeve; 2021-wind wheel; 203-nozzle cover; 204-partition; 301-air inlet; 302-air outlet. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0023] Example: Figure 1 , Figure 2 , Figure 3 A powder bell gun tip is shown.

[0024] Reference Figure 1-Figure 3As shown, the utility model discloses a powder rotary cup gun head, including a locking assembly 1 and a rotary spray head assembly 2 rotatably connected to the locking assembly 1, the locking assembly 1 includes an external locking piece 101 and an internal locking piece 102, the external locking piece 101 is a cylindrical structure, a mounting groove with an opening on one side is provided on the external locking piece 101, and the internal locking piece 102 is detachably installed in the mounting groove, preferably, a convex point is provided on the inner wall of the mounting groove in the external locking piece 101, and a clamping slide is provided on the outer wall of the internal locking piece 102, the convex point is inserted into the clamping slide so that the internal locking piece 102 can be detachably installed in the mounting groove in the external locking piece 101; a through hole is provided inside the internal locking piece 102, and a thread is provided around the inner wall of the through hole; the mounting groove in the external locking piece 101 has a bottom wall, and the external locking piece 1 A ventilation sleeve 3 is installed on the outer side of the bottom wall of the installation groove in 01, extending outward, a connecting piece 4 is fixedly installed on the side wall of the ventilation sleeve 3 away from the external locking piece 101, and a locking piece 5 is installed on the outer wall of the connecting piece 4 on one side away from the ventilation sleeve 3 through threaded locking. The rotating nozzle assembly 2 passes through the ventilation sleeve 3, the connecting piece 4 and the locking piece 5 and is rotatably installed on the bottom of the locking piece 5. Preferably, the connecting piece 4 has a connecting through hole inside, and a positioning boss is protruding inward around the inner wall of the connecting through hole. A first bearing 6 and a second bearing 7 are respectively installed on both sides of the positioning boss. The rotating nozzle assembly 2 is arranged inside the first bearing 6 and the second bearing 7, so that the rotating nozzle assembly 2 is rotatably connected with the locking assembly 1, the ventilation sleeve 3, the connecting piece 4 and the locking piece 5. A spray core 10 for guiding plastic powder is arranged at the center position of the rotating nozzle assembly 2.

[0025] Reference Figure 2 As shown, the rotary nozzle assembly 2 includes a rotary connection sleeve 202 and a nozzle housing 201, the rotary connection sleeve 202 is rotatably arranged inside the ventilation sleeve 3, the connecting piece 4 and the locking piece 5, a wind wheel 2021 is arranged on the top of the rotary connection sleeve 202, and the nozzle housing 201 is installed at the bottom of the rotary connection sleeve 202 through threaded locking, the nozzle core 10 passes through the locking assembly 1, the ventilation sleeve 3, the connecting piece 4, the locking piece 5 and the rotary connection sleeve 202 and extends to the inside of the nozzle housing 201, and a retaining spring 8 for fixing the position of the second bearing 7 is installed on the side wall of the rotary connection sleeve 202, referring to Figure 1 As shown, an air inlet 301 is provided at the top of the side wall of the ventilation sleeve 3, and an air outlet 302 is provided at the bottom of the side wall of the ventilation sleeve 3. The positions of the air inlet 301 and the air outlet 302 correspond to those of the wind wheel 2021.

[0026] A nozzle cover 203 is installed at the bottom of the nozzle housing 201, and a partition 204 is installed between the nozzle cover 203 and the nozzle housing 201. The outer walls of the nozzle cover 203 and the partition 204 and the inner wall of the nozzle housing 201 form a diffusion port. A conductive tube body 9 is installed around the outer wall of the nozzle core 10 by threaded locking. The conductive tube body 9 passes through the bottom wall of the mounting groove in the external locking member 101 and is fixedly installed on the side wall of the ventilation sleeve 3, and the bottom wall of the conductive tube body 9 passes through the bottom wall of the nozzle core 10 and then extends outward. Preferably, the conductive tube body 9 is made of a conductive metal material.

[0027] When in use, the utility model is locked on the plastic powder gun through the thread in the internal locking piece 102, and the plastic powder gun contacts the conductive tube body 9, so that the static electricity of the plastic powder gun is transmitted to the conductive tube body 9, and the airflow drives the wind wheel 2021 to rotate through the air inlet 301, so that the rotating nozzle assembly 2 rotates, and the plastic powder in the plastic powder gun passes through the spray core 10 and contacts the bottom wall of the conductive tube body 9, so that the plastic powder is charged with static electricity, and then the plastic powder is rotated and sprayed out through the diffusion port at the bottom of the nozzle housing 201. The rotary cup gun head of this structure can make the plastic powder more evenly adsorbed on the surface of the part, reduce the spraying time, and improve the spraying efficiency of the part.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A powder rotary cup gun head, comprising a locking assembly (1) and a rotary nozzle assembly (2) rotatably connected to the locking assembly (1), characterized in that: The locking assembly (1) comprises an external locking member (101) and an internal locking member (102); a mounting groove having an opening on one side is arranged on the external locking member (101); the internal locking member (102) is detachably mounted in the mounting groove; the mounting groove in the external locking member (101) comprises a bottom wall; a vent sleeve (3) is mounted on the outer side of the bottom wall of the mounting groove in the external locking member (101) and extends outward; a vent sleeve (3) is arranged in the vent sleeve (3) away from the external locking member (102); 1), a connecting piece (4) is fixedly installed on the side wall of the connecting piece (4), a locking piece (5) is installed on the outer wall of the connecting piece (4) on the side away from the ventilation sleeve (3) through thread locking, the rotating nozzle assembly (2) passes through the ventilation sleeve (3), the connecting piece (4) and the locking piece (5) and is rotatably installed on the bottom of the locking piece (5), a spray core (10) for guiding plastic powder is arranged at the center position of the rotating nozzle assembly (2), and a diffusion port is provided at the bottom of the rotating nozzle assembly (2).

2. A powder bell gun head according to claim 1, characterized in that: The rotary nozzle assembly (2) comprises a rotary connection sleeve (202) and a nozzle housing (201); the rotary connection sleeve (202) is rotatably arranged inside a ventilation sleeve (3), a connection piece (4) and a locking piece (5); the nozzle housing (201) is installed at the bottom of the rotary connection sleeve (202) by threaded locking; and the bottom of the nozzle housing (201) has a diffusion port.

3. A powder bell gun head according to claim 1 or 2, characterized in that: A through hole is provided inside the internal locking member (102), and a thread is arranged around the inner wall of the through hole.

4. A powder bell gun head according to claim 2, characterized in that: The external locking member (101) is a cylindrical structure, and a protrusion is provided on the inner wall of the installation groove in the external locking member (101), and a clamping slide is provided on the outer wall of the internal locking member (102). The protrusion is inserted into the clamping slide so that the internal locking member (102) can be detachably installed in the installation groove in the external locking member (101).

5. A powder bell gun head according to claim 4, characterized in that: The connecting piece (4) has a connecting through hole inside, and a positioning boss is provided inwardly protruding around the inner wall of the connecting through hole, and a first bearing (6) and a second bearing (7) are respectively installed on both sides of the positioning boss. The rotating spray head assembly (2) is arranged inside the first bearing (6) and the second bearing (7), so that the rotating spray head assembly (2) forms a rotational connection with the locking assembly (1), the ventilation sleeve (3), the connecting piece (4) and the locking piece (5).

6. A powder bell gun head according to claim 5, characterized in that: A retaining spring (8) for fixing the position of the second bearing (7) is installed on the side wall of the rotating connection sleeve (202).

7. A powder bell gun head according to claim 6, characterized in that: A wind wheel (2021) is arranged at the top of the rotating connection sleeve (202), an air inlet (301) is arranged at the top of the side wall of the ventilation sleeve (3), and an air outlet (302) is arranged at the bottom of the side wall of the ventilation sleeve (3), and the positions of the air inlet (301) and the air outlet (302) correspond to those of the wind wheel (2021).

8. A powder bell gun head according to claim 7, characterized in that: A nozzle cover (203) is installed at the bottom of the nozzle housing (201), a partition (204) is installed between the nozzle cover (203) and the nozzle housing (201), and a diffusion port is formed on the outer walls of the nozzle cover (203) and the partition (204) and the inner wall of the nozzle housing (201).

9. A powder bell gun head according to claim 8, characterized in that: The nozzle core (10) passes through the locking assembly (1), the vent sleeve (3), the connecting piece (4), the locking piece (5) and the rotating connecting sleeve (202) and extends into the interior of the nozzle housing (201). A conductive tube body (9) is installed around the outer wall of the nozzle core (10) by threaded locking. The conductive tube body (9) passes through the bottom wall of the installation groove in the external locking piece (101) and is fixedly installed on the side wall of the vent sleeve (3). The bottom wall of the conductive tube body (9) passes through the bottom wall of the nozzle core (10) and then extends outward.

10. A powder bell gun head according to claim 9, characterized in that: The conductive tube body (9) is made of conductive metal material.

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