A spray painting equipment for stop valve production with pre-dust removal function

Abstract

The present invention discloses a paint spraying device for stop valve production with a pre-dust removal function, comprising a transfer mechanism, a support, fixing and rotating mechanism, an ultrasonic cleaning machine and a second electric valve, wherein the second electric valve penetrates the right side of the base and is connected with the arc groove, a first arc support plate is arranged on the outside of the arc groove, a ventilation channel is fixed on the front side of the hot air blower, the first arc support plate, the second arc support plate and the hot air blower are all fixed on the base, a material storage box is arranged between the second arc support plate, a third electric valve is fixed on the front side of the material storage box, a liquid pump is arranged on the inner bottom of the material storage box, and the liquid passage is fixed on the base. In the paint spraying device for stop valve production with a pre-dust removal function, after the stop valve reaches the top of the ultrasonic cleaning machine, the stop valve moves downward with the corresponding bearing frame and enters the ultrasonic cleaning machine, and the ultrasonic cleaning machine can clean and remove dust from the stop valve.

Description

Technical Field

[0001] The invention relates to the technical field related to stop valve production, and in particular to a paint spraying device for stop valve production with a pre-dust removal function. Background Art

[0002] The stop valve, also known as the gate valve, is a forced sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force the sealing surface to prevent leakage. When the medium enters the valve from under the valve disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the diameter of the valve stem must be larger, otherwise the valve stem will bend. In the process of producing stop valves, in order to carry out anti-corrosion and anti-rust treatment on them, it is necessary to use paint spraying equipment to spray paint them. The existing paint spraying equipment is not convenient to pre-remove dust on the surface of the stop valve before painting the stop valve, which will affect the painting effect, and the entire operation is not continuous and efficient enough, and the painting effect is not comprehensive enough. Summary of the invention

[0003] The object of the present invention is to provide a paint spraying equipment for stop valve production with a pre-dust removal function, so as to solve the problem that the existing paint spraying equipment proposed in the above background technology is inconvenient to pre-remove dust on the surface of the stop valve before painting the stop valve, which affects the painting effect, and the entire operation is not continuous and efficient enough, and the painting effect is not comprehensive enough.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a paint spraying device for stop valve production with a pre-dust removal function, comprising a transfer mechanism, a support, fixing and rotating mechanism, an ultrasonic cleaning machine and a second electric valve,

[0005] The transfer mechanism is fixed at the middle of the upper end surface of the base, and a first electric telescopic column is fixed at the edge of the lower end surface of the top of the transfer mechanism, and the bottom of the first electric telescopic column is connected to the bearing frame;

[0006] The supporting fixing and rotating mechanism is arranged at the bottom of the movable plate, and the movable plate is slidably connected to the lower end surface of the bearing frame;

[0007] The ultrasonic cleaning machine is fixed on the left side of the upper end surface of the base, and a first electric valve is fixed on the left side of the ultrasonic cleaning machine;

[0008] The second electric valve passes through the right side of the base and is connected with the arc-shaped groove, and the arc-shaped groove is opened on the upper end surface of the base, the outer side of the arc-shaped groove is provided with a first arc-shaped support plate, and the inner side of the arc-shaped groove is provided with a hot air blower and a second arc-shaped support plate, and the second arc-shaped support plate is located on the right side of the hot air blower, the front side of the hot air blower is fixed with a ventilation channel, and the front end surface of the ventilation channel is fixed with an air nozzle, the first arc-shaped support plate, the second arc-shaped support plate and the hot air blower are all fixed on the base, and the inner end surface of the first arc-shaped support plate and the outer end surface of the second arc-shaped support plate are both fixed with the first electric heating plate and A second electric heating plate, and the second electric heating plate is located at the rear side of the first electric heating plate, a material storage box is arranged between the second arc-shaped support plates, and the material storage box is fixed to the right side of the upper end surface of the base, and a top plug is threadedly connected to the top of the material storage box, a third electric valve is fixed to the front side of the material storage box, and a third electric heating plate is fixed on the inner wall of the material storage box, a liquid pump is arranged at the inner bottom of the material storage box, and a connecting pipe is fixed to the right side of the liquid pump, and the connecting pipe passes through the right side of the material storage box and is connected to the liquid passage, the liquid passage is fixed on the base, and a paint spray head is fixed to the right end surface of the liquid passage.

[0009] Preferably, the transfer mechanism includes a bracket, a motor, a motor shaft and a rotating frame, and the bracket is fixed at the middle of the upper end surface of the base, a motor is fixed inside the top of the bracket, and the upper side of the motor is rotatably connected to the rotating frame through the motor shaft.

[0010] Preferably, the carrying frame forms a telescopic structure with the rotating frame through the first electric telescopic column, and four first electric telescopic columns and four carrying frames are provided, and the four first electric telescopic columns are evenly distributed on the rotating frame in the circumferential direction.

[0011] Preferably, a first motor is fixed to the outer side of the bearing frame, and a lead screw is rotatably connected to the inner side of the first motor. The lead screw is threadedly connected to the movable plate, and the movable plate is symmetrically arranged on the bearing frame.

[0012] Preferably, the supporting fixing and rotating mechanism includes a second motor, a rotating rod, a storage slot, a second electric telescopic column and a supporting block, and the second motor is fixed on the outside of the movable plate, and the inside of the second motor is rotatably connected to the rotating rod.

[0013] Preferably, the upper and lower end surfaces of the rotating rod are both provided with receiving grooves, and a second electric telescopic column is fixed in the receiving groove, and the end of the second electric telescopic column is connected to the supporting block.

[0014] Preferably, the air jets are distributed at equal distances on the ventilation channel.

[0015] Preferably, the first electric heating plate on the second arc-shaped support plate is arranged correspondingly to the first electric heating plate on the first arc-shaped support plate, and the second electric heating plate on the second arc-shaped support plate is arranged correspondingly to the second electric heating plate on the first arc-shaped support plate.

[0016] Preferably, the paint spray heads are distributed at equal distances on the liquid passage.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the paint spraying equipment for stop valve production with pre-dust removal function,

[0018] (1) Before using the device, water needs to be passed into the ultrasonic cleaning machine. After unscrewing the top plug, paint can be passed into the storage box. After the stop valve is placed between a group of rotating rods at the rear side, the corresponding two movable plates are close to each other. After the rotating rod is extended into the inner side of the stop valve, the support block moves under the extension of the second electric telescopic column, which is convenient for supporting and fixing the stop valve. After that, the rotating frame can be intermittently rotated counterclockwise under the action of the motor and the motor shaft, which is convenient for orderly completing the subsequent cleaning, air drying, drying, painting and re-drying operations. While the previous stop valve is being cleaned, the next stop valve can be placed and fixed, making the entire operation more continuous and efficient;

[0019] (2) After the stop valve reaches the top of the ultrasonic cleaning machine, the stop valve moves downward together with the corresponding bearing frame and enters the ultrasonic cleaning machine. The ultrasonic cleaning machine can clean and remove dust from the stop valve. After the stop valve is lifted and moved away from the top of the ultrasonic cleaning machine, the stop valve moves downward to between the first arc-shaped support plate and the air spray head, and the rotating frame rotates counterclockwise. During this process, the air spray head sprays hot air forward, which is convenient for preliminary air drying of the stop valve. After that, the stop valve can be thoroughly dried under the action of the first electric heating plate;

[0020] (3) After the stop valve reaches the right side of the liquid passage, the paint in the storage box can be sprayed out through the connecting pipe, the liquid passage and the paint spray head in sequence under the action of the liquid pump, which is convenient for spraying paint on the stop valve;

[0021] (4) After the painting operation is completed, the rotating frame continues to rotate counterclockwise. During this process, the stop valve can be dried under the action of the second electric heating plate;

[0022] (5) During the process of cleaning, air drying, baking, painting and re-baking the stop valve, the stop valve can be rotated with the rotating rod, which facilitates more comprehensive and thorough processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0024] Figure 2 It is a front view structural schematic diagram of the present invention;

[0025] Figure 3 It is a right side cross-sectional structural schematic diagram of the present invention;

[0026] Figure 4 It is a schematic diagram of a top-view cross-sectional structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the top view structure of the present invention;

[0028] Figure 6 For the present invention Figure 3 Enlarged structural diagram at A in the middle.

[0029] In the figure: 1, base, 2, transfer mechanism, 201, bracket, 202, motor, 203, motor shaft, 204, rotating frame, 3, first electric telescopic column, 4, bearing frame, 5, first motor, 6, screw rod, 7, moving plate, 8, supporting fixing and rotating mechanism, 801, second motor, 802, rotating rod, 803, storage slot, 804, second electric telescopic column, 805, supporting block, 9, ultrasonic cleaning machine, 10, The first electric valve, 11. the arc-shaped groove, 12. the second electric valve, 13. the first arc-shaped support plate, 14. the hot air blower, 15. the ventilation channel, 16. the air spray head, 17. the second arc-shaped support plate, 18. the first electric heating plate, 19. the second electric heating plate, 20. the material storage box, 21. the top plug, 22. the third electric valve, 23. the third electric heating plate, 24. the liquid pump, 25. the connecting pipe, 26. the liquid channel, 27. the paint spray head. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-6 The present invention provides a technical solution: a spray painting device for stop valve production with a pre-dust removal function, according to Figure 1 and Figure 2As shown, the transfer mechanism 2 is fixed at the middle of the upper end surface of the base 1, and a first electric telescopic column 3 is fixed at the edge of the lower end surface of the top of the transfer mechanism 2, and the bottom of the first electric telescopic column 3 is connected to the bearing frame 4. The transfer mechanism 2 includes a bracket 201, a motor 202, a motor shaft 203 and a rotating frame 204, and the bracket 201 is fixed at the middle of the upper end surface of the base 1, a motor 202 is fixed in the top of the bracket 201, and the upper side of the motor 202 is rotatably connected to the rotating frame 204 through the motor shaft 203. After completing the placement and fixing operation of the stop valve, the rotating frame 204 can intermittently rotate counterclockwise under the action of the motor 202 and the motor shaft 203, so as to conveniently and orderly complete the subsequent cleaning, air-drying, drying, painting and re-drying operations. The bearing frame 4 forms a telescopic structure with the rotating frame 204 through the first electric telescopic column 3, and four first electric telescopic columns 3 and the bearing frame 4 are each provided with. At the same time, the four first electric telescopic columns 3 are evenly distributed on the rotating frame 204 in the circumferential direction. After the valve reaches the top of the ultrasonic cleaning machine 9, the supporting frame 4 can move up and down under the telescopic action of the first electric telescopic column 3, and the stop valve moves downward and enters the ultrasonic cleaning machine 9 to facilitate the cleaning operation. After the cleaning operation is completed, the stop valve moves upward to its original height together with the supporting frame 4. After the stop valve leaves the top of the ultrasonic cleaning machine 9, it descends to between the first arc-shaped support plate 13 and the air spray head 16 together with the supporting frame 4, so as to smoothly complete the subsequent operations. A first motor 5 is fixed to the outside of the supporting frame 4, and a screw rod 6 is rotatably connected to the inner side of the first motor 5. The screw rod 6 is threadedly connected to the moving plate 7, and the moving plate 7 is symmetrically arranged on the supporting frame 4. The screw rod 6 can rotate under the action of the first motor 5. At this time, the moving plate 7 can slide under the limiting action of the supporting frame 4 and the screw rod 6. When the two moving plates 7 are close to each other, the rotating rod 802 can be inserted at both ends of the stop valve. When the two moving plates 7 are away from each other, the rotating rod 802 can be separated from the stop valve.

[0032] according to Figure 1 , Figure 2 and Figure 3As shown, the supporting fixing and rotating mechanism 8 is arranged at the bottom of the moving plate 7, and the moving plate 7 is slidably connected to the lower end surface of the bearing frame 4. The supporting fixing and rotating mechanism 8 includes a second motor 801, a rotating rod 802, a storage groove 803, a second electric telescopic column 804 and a supporting block 805. The second motor 801 is fixed to the outside of the moving plate 7, and the rotating rod 802 is rotatably connected to the inside of the second motor 801. During the entire processing process, the rotating rod 802 can rotate under the action of the second motor 801. , thereby driving the stop valve to rotate, so that the stop valve can be fully and thoroughly processed, the upper and lower end surfaces of the rotating rod 802 are provided with a storage groove 803, and the second electric telescopic column 804 is fixed in the storage groove 803, and the end of the second electric telescopic column 804 is connected to the supporting block 805. After the two rotating rods 802 approach each other and extend into the inner side of the stop valve, the supporting block 805 can move and press against the stop valve under the extension of the second electric telescopic column 804, so as to facilitate the support and fixation of the stop valve.

[0033] according to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the ultrasonic cleaning machine 9 is fixed on the left side of the upper end surface of the base 1, and a first electric valve 10 is fixed on the left side of the ultrasonic cleaning machine 9, a second electric valve 12 penetrates the right side of the base 1 and is connected with the arc groove 11, and the arc groove 11 is opened on the upper end surface of the base 1, a first arc support plate 13 is arranged on the outer side of the arc groove 11, and a hot air blower 14 and a second arc support plate 17 are arranged on the inner side of the arc groove 11, and the second arc support plate 17 is located on the right side of the hot air blower 14, a ventilation channel 15 is fixed on the front side of the hot air blower 14, and a nozzle 16 is fixed on the front end surface of the ventilation channel 15, and the nozzles 16 are equidistantly distributed on the ventilation channel 15, and when the stop valve passes through the rear of the ventilation channel 15, the hot air blower 14 produces hot air, and the hot air passes through the ventilation channel in turn. 15 and the air spray head 16 are sprayed out to facilitate the preliminary air drying treatment of the stop valve. The first arc-shaped support plate 13, the second arc-shaped support plate 17 and the hot air blower 14 are all fixed on the base 1, and the inner end surface of the first arc-shaped support plate 13 and the outer end surface of the second arc-shaped support plate 17 are fixed with the first electric heating plate 18 and the second electric heating plate 19. At the same time, the second electric heating plate 19 is located at the rear side of the first electric heating plate 18. The first electric heating plate 18 on the second arc-shaped support plate 17 is arranged in correspondence with the first electric heating plate 18 on the first arc-shaped support plate 13, and the second electric heating plate 19 on the second arc-shaped support plate 17 is arranged in correspondence with the second electric heating plate 19 on the first arc-shaped support plate 13. The first electric heating plate 18 dries the stop valve after cleaning, and the second electric heating plate 19 dries the stop valve after painting.

[0034] according to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a material storage box 20 is arranged between the second arc-shaped support plate 17, and the material storage box 20 is fixed to the right side of the upper end surface of the base 1, and a top plug 21 is threadedly connected to the top of the material storage box 20, a third electric valve 22 is fixed to the front side of the material storage box 20, and a third electric heating plate 23 is fixed to the inner wall of the material storage box 20, a liquid pump 24 is arranged at the inner bottom of the material storage box 20, and a connecting pipe 25 is fixed to the right side of the liquid pump 24, and the connecting pipe 25 runs through the right side of the material storage box 20 and communicates with the liquid. The liquid passage 26 is connected with the base 1, and the liquid passage 26 is fixed on the base 1, and a paint spray head 27 is fixed on the right end face of the liquid passage 26, and the paint spray heads 27 are evenly distributed on the liquid passage 26. After the stop valve reaches the right side of the liquid passage 26, the paint in the storage box 20 can be sprayed out through the connecting pipe 25, the liquid passage 26 and the paint spray head 27 in sequence under the action of the liquid pump 24, so that the stop valve is convenient for painting. The paint spray heads 27 distributed evenly can make the painting effect more comprehensive and uniform.

[0035] Working principle of this embodiment: When using the stop valve production paint spraying equipment with pre-dust removal function, it is connected to an external power supply, first water is passed into the ultrasonic cleaning machine 9, and after unscrewing the top plug 21, paint can be passed into the storage box 20. After the material is passed, the top plug 21 is screwed in, and the third electric heating plate 23 heats the paint in the storage box 20 to prevent the paint from solidifying. After the stop valve is placed between a group of rotating rods 802 on the rear side, the first motor 5 is started, and the first motor 5 drives the screw rod 6 to rotate. The movable plate 7 is limited by the bearing frame 4 and the screw rod 6 and slides left and right and approaches each other. After the rotating rod 802 extends into the inner side of the stop valve, the second electric telescopic column 804 is started, and the second electric The telescopic column 804 is extended, and the supporting block 805 moves and presses against the inner wall of the stop valve, thereby supporting and fixing the stop valve. Then, the motor 202 is started, and the motor 202 drives the motor shaft 203 to rotate, thereby driving the rotating frame 204 to rotate counterclockwise. After the stop valve reaches the top of the ultrasonic cleaning machine 9, the rotating frame 204 stops rotating. Then, the first electric telescopic column 3 is started, and the first electric telescopic column 3 is extended. The stop valve moves downward together with the corresponding bearing frame 4 and enters the ultrasonic cleaning machine 9. After starting the ultrasonic cleaning machine 9, the ultrasonic cleaning machine 9 cleans and dusts the stop valve. After completing the cleaning operation and raising the stop valve, the rotating frame 204 continues to rotate and lowers the stop valve at the same time. , so that the stop valve is between the first arc-shaped support plate 13 and the air spray head 16, after the hot air blower 14 is started, the hot air blower 14 produces hot air, and the hot air is sprayed out through the ventilation channel 15 and the air spray head 16 in turn, so as to perform a preliminary air-drying treatment on the stop valve, and then the stop valve can be thoroughly dried under the action of the first electric heating plate 18. After the stop valve reaches the right side of the liquid passage 26, the rotating frame 204 stops rotating, and the liquid pump 24 is started. The paint in the storage box 20 is sprayed out through the connecting pipe 25, the liquid passage 26 and the paint spray head 27 in turn, so as to spray the stop valve. After the painting operation is completed, the rotating frame 204 continues to rotate counterclockwise. In this process, the stop valve can be 19 is used for drying. After the stop valve reaches the loading position, the support block 805 moves under the contraction of the second electric telescopic column 804 to loosen the stop valve. After the two movable plates 7 move away from each other and the rotating rod 802 leaves the stop valve, the staff can remove the stop valve. In the process of cleaning, air-drying, drying, painting and re-drying the stop valve, the second motor 801 needs to be started. The second motor 801 drives the rotating rod 802 to rotate, and the stop valve rotates accordingly, so that the stop valve can be comprehensively and thoroughly cleaned, air-dried, dried, painted and re-dried, and the contents not described in detail in this manual belong to the prior art known to professional and technical personnel in this field.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A paint spraying device for stop valve production with a pre-dust removal function, comprising a transfer mechanism (2), a support, fixing and rotating mechanism (8), an ultrasonic cleaning machine (9) and a second electric valve (12), characterized in that: The transfer mechanism (2) is fixed at the middle of the upper end surface of the base (1), and a first electric telescopic column (3) is fixed at the edge of the lower end surface of the top of the transfer mechanism (2), and the bottom of the first electric telescopic column (3) is connected to the bearing frame (4); The supporting fixing and rotating mechanism (8) is arranged at the bottom of the movable plate (7), and the movable plate (7) is slidably connected to the lower end surface of the carrying frame (4); The ultrasonic cleaning machine (9) is fixed on the left side of the upper end surface of the base (1), and a first electric valve (10) is fixed on the left side of the ultrasonic cleaning machine (9); The second electric valve (12) passes through the right side of the base (1) and is connected to the arc-shaped groove (11), and the arc-shaped groove (11) is provided on the upper end surface of the base (1). A first arc-shaped support plate (13) is provided on the outer side of the arc-shaped groove (11), and a hot air blower (14) and a second arc-shaped support plate (17) are provided on the inner side of the arc-shaped groove (11). Meanwhile, the second arc-shaped support plate (17) is located on the right side of the hot air blower (14). A ventilation channel (15) is fixed on the front side of the hot air blower (14), and a nozzle (16) is fixed on the front end surface of the ventilation channel (15). The first arc-shaped support plate (13), the second arc-shaped support plate (17) and the hot air blower (14) are all fixed on the base (1), and the first electric heating plate (18) and the second electric heating plate (16) are fixed on the inner end surface of the first arc-shaped support plate (13) and the outer end surface of the second arc-shaped support plate (17). The electric heating plate (19) is provided with a second electric heating plate (19) at the rear side of the first electric heating plate (18); a material storage box (20) is arranged between the second arc-shaped support plate (17), and the material storage box (20) is fixed to the right side of the upper end surface of the base (1); a top plug (21) is threadedly connected to the top of the material storage box (20); a third electric valve (22) is fixed to the front side of the material storage box (20), and a third electric heating plate (23) is fixed to the inner wall of the material storage box (20); a liquid pump (24) is arranged at the inner bottom of the material storage box (20), and a connecting pipe (25) is fixed to the right side of the liquid pump (24); the connecting pipe (25) passes through the right side of the material storage box (20) and is connected to a liquid passage (26); the liquid passage (26) is fixed to the base (1), and a paint spray head (27) is fixed to the right end surface of the liquid passage (26).

2. The paint spraying equipment for stop valve production with pre-dust removal function according to claim 1 is characterized in that: The transfer mechanism (2) comprises a bracket (201), a motor (202), a motor shaft (203) and a rotating frame (204), wherein the bracket (201) is fixed at the middle of the upper end surface of the base (1), the motor (202) is fixed inside the top of the bracket (201), and the upper side of the motor (202) is rotatably connected to the rotating frame (204) via the motor shaft (203).

3. The paint spraying equipment for stop valve production with pre-dust removal function according to claim 1 is characterized in that: The carrying frame (4) forms a telescopic structure through the first electric telescopic column (3) and the rotating frame (204), and four first electric telescopic columns (3) and four carrying frames (4) are provided, and the four first electric telescopic columns (3) are evenly distributed on the rotating frame (204) in the circumferential direction.

4. The paint spraying equipment for stop valve production with pre-dust removal function according to claim 1 is characterized in that: A first motor (5) is fixed on the outer side of the bearing frame (4), and a screw rod (6) is rotatably connected to the inner side of the first motor (5). The screw rod (6) is threadedly connected to a movable plate (7), and the movable plate (7) is symmetrically arranged on the bearing frame (4).

5. The paint spraying equipment for stop valve production with pre-dust removal function according to claim 1 is characterized in that: The supporting fixing and rotating mechanism (8) comprises a second motor (801), a rotating rod (802), a storage slot (803), a second electric telescopic column (804) and a supporting block (805), wherein the second motor (801) is fixed on the outside of the movable plate (7), and the rotating rod (802) is rotatably connected to the inside of the second motor (801).

6. The paint spraying equipment for stop valve production with pre-dust removal function according to claim 5 is characterized in that: The upper and lower end surfaces of the rotating rod (802) are both provided with a receiving groove (803), and a second electric telescopic column (804) is fixed in the receiving groove (803), and the end of the second electric telescopic column (804) is connected to the supporting block (805).

7. The paint spraying equipment for stop valve production with pre-dust removal function according to claim 1 is characterized in that: The air spray heads (16) are distributed at equal distances on the ventilation channel (15).

8. The paint spraying equipment for stop valve production with pre-dust removal function according to claim 1 is characterized in that: The first electric heating plate (18) on the second arc-shaped support plate (17) is arranged in correspondence with the first electric heating plate (18) on the first arc-shaped support plate (13), and the second electric heating plate (19) on the second arc-shaped support plate (17) is arranged in correspondence with the second electric heating plate (19) on the first arc-shaped support plate (13).

9. The paint spraying equipment for stop valve production with pre-dust removal function according to claim 1, characterized in that: The paint spray heads (27) are distributed at equal distances on the liquid passage (26).

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