UV electroplating primer spraying device and spraying method thereof

Abstract

The invention relates to the technical field of electroplating primer spraying, in particular to a UV electroplating primer spraying device and a spraying method thereof.The UV electroplating primer spraying device comprises a supporting frame, a plurality of fixing mechanisms used for fixing products to be sprayed are arranged in the supporting frame, and a supporting plate is fixedly installed on the surface of the upper end of the supporting frame; a U-shaped top plate is fixedly installed at the position, close to the upper portion, of the outer side wall of the supporting plate, and two paint boxes are fixedly installed on the back face of the supporting plate. And by arranging the clamping mechanism capable of adapting to products of various shapes, the products can be clamped and fixed, and the situation that the spraying effect is affected due to the fact that the products deviate in the subsequent spraying process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of electroplating primer spraying, in particular to a UV electroplating primer spraying device and a spraying method thereof. Background Art

[0002] UV electroplating primer is a kind of coating used for metallization decoration on the surface of plastic products. UV electroplating primer is applied on the plastic substrate by a paint spraying device, and then a metal film layer is applied by vacuum electroplating or sputtering technology, and finally a topcoat is applied. The coated plastic surface will sparkle with metallic luster, improving the texture of the plastic product.

[0003] In the prior art, there is an electroplating paint spraying device proposed in patent application number "CN202311781508.5", which can recycle paint mist suspended in the air, reduce the waste of spray paint, and reduce air pollution; compared with the existing paint mist filtering treatment method, it has lower cost.

[0004] However, in the above patent application, when spraying the product, a fixed nozzle is generally used to spray the primer, and the spraying range is relatively limited, which cannot adapt to products of various sizes, and it cannot guarantee that the primer can be sprayed on all kinds of products. Summary of the invention

[0005] The object of the present invention is to provide a UV electroplating primer spraying device and a spraying method thereof to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A electroplating primer spraying device comprises a support frame, wherein a plurality of fixing mechanisms for fixing spray-coated products are arranged inside the support frame, a support plate is fixedly installed on the upper end surface of the support frame, a U-shaped top plate is fixedly installed on the outer wall of the support plate near the upper position, two paint boxes are fixedly installed on the back of the support plate, and feeding pipes are fixedly connected to the outer walls of the two paint boxes near the upper position, and auxiliary mechanisms for assisting in spraying products are arranged on both outer walls of the U-shaped top plate, a telescopic connecting pipe is fixedly connected to the upper end surface of the paint box, and a connecting rod is fixedly connected to the bottom surface of the U-shaped top plate, and a plurality of connecting short plates are fixedly connected to the bottom surface of the connecting rod, and spray pipes are fixedly installed on the bottom ends of the plurality of connecting short plates.

[0008] Preferably, one end of the telescopic connecting tube is fixedly connected to one of the nozzles, a connecting tube is fixedly connected between the two nozzles, several nozzles are fixedly connected to the outer walls of the nozzles, L-shaped baffles are fixedly connected to the two outer walls of the U-shaped top plate, and through grooves are penetrated through the outer walls of the support plate near both sides.

[0009] Preferably, the auxiliary mechanism comprises a turntable, a second rack and a return-shaped movable frame, the turntable is rotatably connected to the outer wall of the U-shaped top plate, the outer wall of the support plate is fixedly connected to a bearing plate, the second rack is slidably connected to the outer wall of the bearing plate, and the return-shaped movable frame is rotatably connected to the outer wall of the U-shaped top plate;

[0010] The second outer sleeve of the rack is provided with two U-shaped limit blocks, and one of the U-shaped limit blocks is fixedly connected to the support plate, and the other U-shaped limit block is fixedly connected to the bearing plate.

[0011] Preferably, the outer side wall of the turntable is fixedly connected with a short shaft, and the short shaft is located inside the circular movable frame, one end of the circular movable frame is fixedly connected with a half gear, the second bottom surface of the rack is fixedly connected with a connecting block, and the bottom end of the connecting block is fixedly connected to the nozzle.

[0012] Preferably, the two inner side walls of the U-shaped top plate are rotatably connected with a transverse axis, and one end of the transverse axis is fixedly connected to the turntable, and the top and inner side walls of the U-shaped top plate are fixedly installed with fixed plates, and one of the fixed plates is rotatably connected to the transverse axis;

[0013] A bevel gear 1 is fixedly installed on the outer wall of the horizontal axis, and a vertical axis is rotatably connected to the upper surface of another fixed plate. A bevel gear 2 is fixedly connected to the upper end of the vertical axis, and the bevel gear 2 and the bevel gear 1 are meshed with each other. A motor 1 is installed on the outer side wall of one of the fixed plates, and the output end of the motor 1 is connected to the horizontal axis.

[0014] Preferably, the upper end surface of the paint box is rotatably connected to a stirring shaft, and a plurality of stirring blades are fixedly connected to the outer wall of the stirring shaft and located inside the paint box. A liquid pump is installed inside the paint box, and the output end of the liquid pump is connected to one end of the telescopic connecting pipe, and a transmission belt is sleeved between the vertical shaft and the outside of the stirring shaft.

[0015] Preferably, the fixing mechanism includes a carrying frame, which is rotatably connected to an internal position of the supporting frame through an axial rod, a transverse groove is penetrated through the bottom surface of the carrying frame, a sliding rod is fixedly installed inside the transverse groove, two sliding blocks are sleeved on the outside of the sliding rod, one end of each of the two sliding blocks is fixedly connected to a skateboard, and the outer side walls of each of the two skateboards are fixedly connected to a rack.

[0016] Preferably, a U-shaped mounting plate is fixedly connected to the bottom surface of the supporting frame, and the inner wall of the U-shaped mounting plate is rotatably connected to a transmission gear through an axle, and the transmission gear and two racks are meshed with each other, and a motor 2 is installed on the bottom surface of the U-shaped mounting plate, and the output end of the motor 2 is connected to the transmission gear through a axle.

[0017] Preferably, two clamping blocks are slidably connected inside the bearing frame, and the two clamping blocks are fixedly connected to the two slide plates respectively, and a plurality of insertion holes are opened on the outer wall of the clamping block, and a plurality of push rods are inserted inside the plurality of insertion holes, and a support spring is installed between one end of the push rod and the inner wall of the clamping block;

[0018] A plurality of motors three are installed on the outer side wall of the support frame, and output ends of the plurality of motors three are respectively connected to a plurality of bearing frames through shaft rods.

[0019] A spraying method for a UV electroplating primer spraying device, the specific steps of the spraying method are as follows:

[0020] Step 1: Place each product to be sprayed inside each carrier frame and between the two clamping blocks, then use the second motor installed on the bottom of the U-shaped mounting plate to drive the transmission gear to rotate, and cooperate with the movement of the two racks to drive the two sliders to move along the slide rod and approach each other, thereby driving the two clamping blocks to approach each other, and cooperate with each support rod to clamp and fix the product.

[0021] Step 2: Use a liquid pump in conjunction with a telescopic connecting pipe to pump the primer in the paint box into the spray pipe, and then spray it out from each nozzle to the outer wall of the product to spray the product.

[0022] Step 3: Motor 1 drives the horizontal axis to rotate, thereby driving the turntable to rotate, and cooperates with the short axis, the circular movable frame and the half gear to drive rack 2 to move back and forth along the two U-shaped limit blocks, thereby driving the connecting rod connected by the connecting block to move back and forth, driving the nozzle and each nozzle to move back and forth continuously, and expanding the range of spraying primer.

[0023] Step 4: Bevel gear 1 rotates along with the horizontal axis, driving bevel gear 2 to rotate. The vertical axis rotates along with bevel gear 2 and cooperates with the transmission belt to drive the stirring shaft to rotate. Each stirring blade rotates along with the stirring shaft to continuously stir the primer in the paint box, making the primer more uniform.

[0024] Step 5: After spraying is completed, release the clamping of the product, take the product out of the device, and complete the spraying.

[0025] Beneficial effects of the present invention:

[0026] 1. The present invention uses a liquid pump and a telescopic connecting pipe to pump the primer in the paint box into the spray pipe, and then sprays it to the outer wall of the product through each spray head, so as to spray the product. The motor 1 installed on the outer wall of the fixed plate drives the horizontal axis to rotate, thereby driving the turntable to rotate. The short axis moves with the turntable and moves in the circular movable frame, which can drive the half gear connected to one end of the circular movable frame to rotate back and forth continuously and be in a swinging state, thereby driving the rack 2 to continuously move back and forth left and right along the inside of the two U-shaped limit blocks, thereby driving the connecting rod connected by the connecting block to reciprocate left and right, driving the spray pipe and each spray head to continuously move back and forth left and right, and can expand the scope of spraying the primer, so that products of different volumes can be used, and various products can be sprayed more comprehensively and evenly.

[0027] 2. In the present invention, when the horizontal axis rotates, the bevel gear 1 rotates with the horizontal axis, driving the bevel gear 2 to rotate, and the vertical axis rotates with the bevel gear 2, and cooperates with the transmission belt to drive the stirring shaft to rotate. Each stirring blade rotates with the stirring shaft, which can continuously stir the primer in the paint box, making the primer more uniform, thereby making the sprayed primer more uniform, further improving the uniformity of product spraying.

[0028] 3. The present invention uses motor 2 and a dynamic transmission gear to cooperate with two racks 1, so that the two clamping blocks can be brought close to each other, so that one end of each support rod is in contact with the product and shrinks in the jack along the external shape of the product. With the elastic force of the supporting spring, one end of each support rod is close to the product, which can adapt to products of various shapes and clamp and fix them to avoid product displacement during subsequent spraying, which affects the spraying effect. The motor 3 can drive the bearing frame to rotate, thereby driving the product to rotate, and can adjust the surface of the product facing the nozzle, so as to facilitate convenient spraying of various surfaces of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a structural schematic diagram of another viewing angle of the present invention;

[0032] Figure 3 is a cross-sectional view of the paint box of the present invention;

[0033] Figure 4 It is a partial structural schematic diagram of the present invention;

[0034] Figure 5 The present invention Figure 4 The enlarged view of point A in the middle;

[0035] Figure 6 It is a schematic diagram of the structure of the U-shaped top plate, the nozzle and the bearing frame in the present invention;

[0036] Figure 7 The present invention Figure 6 The enlarged view of point B in the middle;

[0037] Figure 8 It is a structural schematic diagram of the transmission gear and the rack in the present invention;

[0038] Fig. 9 It is a cross-sectional view of the clamping block in the present invention.

[0039] The reference numerals in the figures are as follows:

[0040] 1. Support frame; 2. Support plate; 3. U-shaped top plate; 4. L-shaped baffle; 5. Connecting rod; 6. Spray pipe; 7. Telescopic connecting pipe; 8. Carrying frame; 9. Sliding rod; 10. Sliding block; 11. Rack 1; 12. U-shaped mounting plate; 13. Transmission gear; 14. Through slot; 15. Paint box; 16. Stirring shaft; 17. Stirring blade; 18. Liquid pump; 19. Rack 2; 20. Half gear; 21. Reciprocating gear Moving frame; 22. Turntable; 23. Horizontal axis; 24. Bevel gear one; 25. Fixed plate; 26. Vertical axis; 27. Bevel gear two; 28. Transmission belt; 29. ​​Horizontal groove; 30. Connecting short plate; 31. Push rod; 32. Socket; 33. Support spring; 34. Clamp; 35. Slide plate; 36. Load-bearing plate; 37. U-shaped limit block; 38. Short axis; 39. Nozzle; 40. Connecting block; 41. Connecting pipe. DETAILED DESCRIPTION

[0041] 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.

[0042] A UV electroplating primer spraying device, such as Figure 1-Figure 9As shown, it includes a support frame 1, and a plurality of fixing mechanisms for fixing the spray-coated product are arranged inside the support frame 1. A support plate 2 is fixedly installed on the upper end surface of the support frame 1, and a U-shaped top plate 3 is fixedly installed on the outer wall of the support plate 2 near the upper position, and two paint boxes 15 are fixedly installed on the back of the support plate 2. The outer walls of the two paint boxes 15 are fixedly connected with feeding pipes near the upper position, and the two outer walls of the U-shaped top plate 3 are provided with auxiliary mechanisms for assisting the spraying of the product, and a telescopic connecting pipe 7 is fixedly connected to the upper end surface of the paint box 15, and a connecting rod 5 is fixedly connected to the bottom surface of the U-shaped top plate 3, and a plurality of connecting short plates 30 are fixedly connected to the bottom surface of the connecting rod 5, and a plurality of connecting short plates 30 are fixedly installed with nozzles 6 at the bottom ends.

[0043] One end of the telescopic connecting tube 7 is fixedly connected to one of the nozzles 6, a connecting tube 41 is fixedly connected between the two nozzles 6, a plurality of nozzles 39 are fixedly connected to the outer walls of the plurality of nozzles 6, both outer side walls of the U-shaped top plate 3 are fixedly connected to the L-shaped baffle 4, and through grooves 14 are penetrated through the outer side walls of the support plate 2 near both sides. The telescopic connecting tube 7 can be extended and shortened with the movement of the nozzle 6 without affecting the movement of the nozzle 6. Through the connecting tube 41, the primer can pass through one of the nozzles 6 and enter the other nozzle 6, so that each nozzle 39 can spray the primer and spray each product at the same time.

[0044] The auxiliary mechanism includes a turntable 22, a rack 21 and a circular movable frame 21. The turntable 22 is rotatably connected to the outer wall of the U-shaped top plate 3, the outer wall of the support plate 2 is fixedly connected to a bearing plate 36, the rack 21 is slidably connected to the outer wall of the bearing plate 36, the circular movable frame 21 is rotatably connected to the outer wall of the U-shaped top plate 3, the outer side of the rack 21 is sleeved with two U-shaped limit blocks 37, and one of the U-shaped limit blocks 37 is fixedly connected to the support plate 2, and the other U-shaped limit block 37 is fixedly connected to the bearing plate 36, the outer wall of the turntable 22 is fixedly connected to a short shaft 38, and the short shaft 38 is located inside the circular movable frame 21, one end of the circular movable frame 21 is fixedly connected to a half gear 20, the bottom surface of the rack 21 is fixedly connected to a connecting block 40, and the bottom end of the connecting block 40 is fixedly connected to the nozzle 6.

[0045] The two inner side walls of the U-shaped top plate 3 are rotatably connected with a horizontal shaft 23, and one end of the horizontal shaft 23 is fixedly connected to the turntable 22. The top and inner side walls of the U-shaped top plate 3 are fixedly installed with fixed plates 25, one of which is rotatably connected to the horizontal shaft 23, and a bevel gear 1 24 is fixedly installed on the outer wall of the horizontal shaft 23. The upper end surface of the other fixed plate 25 is rotatably connected to a vertical shaft 26, and a bevel gear 2 27 is fixedly connected to the upper end of the vertical shaft 26, and the bevel gear 2 27 is meshed with the bevel gear 1 24. A motor 1 is installed on the outer side wall of one of the fixed plates 25, and the output end of the motor 1 is connected to the horizontal shaft 23. The bevel gear 1 24 rotates with the horizontal shaft 23, driving the bevel gear 2 27 to rotate, and the vertical shaft 26 rotates with the bevel gear 2 27, and cooperates with the transmission belt 28 to drive the stirring shaft 16 to rotate.

[0046] The upper end surface of the paint box 15 is rotatably connected to a stirring shaft 16, and a plurality of stirring blades 17 are fixedly connected to the outer wall of the stirring shaft 16 and located inside the paint box 15. A liquid pump 18 is installed inside the paint box 15, and the output end of the liquid pump 18 is connected to one end of the telescopic connecting pipe 7. A transmission belt 28 is sleeved between the vertical shaft 26 and the outside of the stirring shaft 16, and primer can be added to the paint box 15 through the feeding pipe.

[0047] When in use, each product to be sprayed is placed inside each carrier frame 8, and then the primer in the paint box 15 is pumped into the spray pipe 6 through the liquid pump 18 and the telescopic connecting pipe 7, and then sprayed to the outer wall of the product by each spray head 39, and the product is sprayed. The motor 1 installed on the outer wall of the fixed plate 25 drives the horizontal axis 23 to rotate, thereby driving the turntable 22 to rotate, and the short axis 38 moves with the turntable 22 and moves in the circular movable frame 21, which can drive the half gear 20 connected to one end of the circular movable frame 21 to rotate back and forth continuously and swing, thereby driving the rack 2 19 to continuously move back and forth left and right along the inside of the two U-shaped limit blocks 37, thereby driving the connecting rod 5 connected by the connecting block 40 to reciprocate left and right, driving the spray pipe 6 and each spray head 39 to continuously move back and forth left and right, which can expand the range of spraying the primer, so that the product can be sprayed more comprehensively and evenly;

[0048] At the same time, when the horizontal axis 23 rotates, the bevel gear 1 24 rotates along with the horizontal axis 23, driving the bevel gear 2 27 to rotate. The vertical axis 26 rotates along with the bevel gear 27 and cooperates with the transmission belt 28 to drive the stirring shaft 16 to rotate. The stirring blades 17 rotate along with the stirring shaft 16, which can continuously stir the primer in the paint box 15, making the primer more uniform, thereby making the sprayed primer more uniform, further improving the uniformity of product spraying.

[0049] like Figure 7-Figure 8The fixing mechanism includes a bearing frame 8, which is rotatably connected to the internal position of the support frame 1 through an axle rod. A transverse groove 29 is formed through the bottom surface of the bearing frame 8, and a slide bar 9 is fixedly installed inside the transverse groove 29. Two sliders 10 are sleeved on the outside of the slide bar 9. One end of the two sliders 10 is fixedly connected to a slide plate 35, and the outer walls of the two slide plates 35 are fixedly connected to a rack 11. A U-shaped mounting plate 12 is fixedly connected to the bottom surface of the bearing frame 8, and a transmission gear 13 is rotatably connected to the inner wall of the U-shaped mounting plate 12 through an axle rod, and the transmission gear 13 and the two racks 11 are meshed with each other. A motor 2 is installed on the bottom surface of the U-shaped mounting plate 12, and the output end of the motor 2 is connected to the transmission gear 13 through a axle rod.

[0050] There are two clamping blocks 34 slidably connected inside the carrying frame 8, and the two clamping blocks 34 are fixedly connected to the two slides 35 respectively. A plurality of plug holes 32 are opened on the outer wall of the clamping block 34, and a plurality of push rods 31 are inserted inside the plurality of plug holes 32. A supporting spring 33 is installed between one end of the push rod 31 and the inner wall of the clamping block 34. A plurality of motors three are installed on the outer wall of the supporting frame 1, and the output ends of the plurality of motors three are connected to the plurality of carrying frames 8 through shafts respectively. The motor two installed on the bottom surface of the U-shaped mounting plate 12 drives the transmission gear 13 to rotate, drives the two racks 11 to move, and can drive the two sliders 10 connected by the two slides 35 to move along the slide rod 9 and approach each other.

[0051] Specifically, the product to be sprayed is placed inside the carrier frame 8 and between the two clamping blocks 34, and then the transmission gear 13 is driven to rotate by the motor 2 installed on the bottom surface of the U-shaped mounting plate 12, driving the two racks 11 to move, thereby driving the two sliders 10 connected by the two slide plates 35 to move along the slide bar 9 and approach each other, thereby driving the two clamping blocks 34 to approach each other, so that one end of each push rod 31 is in conflict with the product and shrinks in the socket 32 ​​accordingly along the external shape of the product, and cooperates with the elastic force of the supporting spring 33 to make one end of each push rod 31 close to the product, adapting to products of various shapes, and clamping and fixing them to avoid product displacement during subsequent spraying, affecting the spraying effect, and the motor 3 can drive the carrier frame 8 to rotate, thereby driving the product to rotate, and the surface of the product facing the nozzle 39 can be adjusted, so as to facilitate convenient spraying of various surfaces of the product.

[0052] A spraying method of a UV electroplating primer spraying device, the specific steps of the spraying method are as follows:

[0053] Step 1: Place each product to be sprayed inside each carrier frame 8 and between the two clamping blocks 34, and then use the motor 2 installed on the bottom surface of the U-shaped mounting plate 12 to drive the transmission gear 13 to rotate, cooperate with the movement of the two racks 11, drive the two sliders 10 to move along the slide bar 9 and approach each other, thereby driving the two clamping blocks 34 to approach each other, and cooperate with each support rod 31 to clamp and fix the product.

[0054] Step 2: The primer in the paint box 15 is pumped into the spray pipe 6 through the liquid pump 18 in cooperation with the telescopic connecting pipe 7, and then sprayed out to the outer wall of the product through each nozzle 39 to spray the product.

[0055] Step 3: Motor 1 drives the horizontal axis 23 to rotate, thereby driving the turntable 22 to rotate, cooperating with the short axis 38, the circular movable frame 21 and the half gear 20, driving the rack 2 19 to continuously move back and forth left and right along the two U-shaped limit blocks 37, thereby driving the connecting rod 5 connected by the connecting block 40 to reciprocate left and right, driving the nozzle 6 and each nozzle 39 to continuously move back and forth left and right, and expanding the range of spraying the primer.

[0056] Step 4: The bevel gear 1 24 rotates along with the horizontal axis 23, driving the bevel gear 2 27 to rotate. The vertical axis 26 rotates along with the bevel gear 27 and cooperates with the transmission belt 28 to drive the stirring shaft 16 to rotate. Each stirring blade 17 rotates along with the stirring shaft 16 to continuously stir the primer in the paint box 15, making the primer more uniform.

[0057] Step 5: After spraying is completed, release the clamping of the product, take the product out of the device, and complete the spraying.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A UV electroplating primer spraying device, comprising a support frame (1), characterized in that: The support frame (1) is provided with a plurality of fixing mechanisms for fixing the spray-coated product inside. A support plate (2) is fixedly mounted on the upper surface of the support frame (1). A U-shaped top plate (3) is fixedly mounted on the outer wall of the support plate (2) near the upper position. Two paint boxes (15) are fixedly mounted on the back of the support plate (2). The outer walls of the two paint boxes (15) are fixedly connected with feeding pipes near the upper position. Auxiliary mechanisms for assisting the spraying of the product are provided on both outer walls of the U-shaped top plate (3). A telescopic connecting pipe (7) is fixedly connected to the upper surface of the paint box (15). A connecting rod (5) is fixedly connected to the bottom surface of the U-shaped top plate (3). A plurality of connecting short plates (30) are fixedly connected to the bottom surface of the connecting rod (5). A nozzle (6) is fixedly mounted on the bottom ends of the plurality of connecting short plates (30).

2. A UV electroplating primer spraying device according to claim 1, characterized in that: One end of the telescopic connecting pipe (7) is fixedly connected to one of the nozzles (6); a connecting pipe (41) is fixedly connected between the two nozzles (6); the outer walls of a plurality of nozzles (6) are fixedly connected to a plurality of nozzle heads (39); both outer side walls of the U-shaped top plate (3) are fixedly connected to L-shaped baffles (4); and through grooves (14) are penetrated through the outer side walls of the support plate (2) near both sides.

3. A UV electroplating primer spraying device according to claim 1, characterized in that: The auxiliary mechanism comprises a rotating disk (22), a second rack (19) and a circular movable frame (21); the rotating disk (22) is rotatably connected to the outer wall of the U-shaped top plate (3); the outer wall of the support plate (2) is fixedly connected to a bearing plate (36); the second rack (19) is slidably connected to the outer wall of the bearing plate (36); and the circular movable frame (21) is rotatably connected to the outer wall of the U-shaped top plate (3); The second rack (19) is externally sleeved with two U-shaped limit blocks (37), one of which is fixedly connected to the support plate (2), and the other of which is fixedly connected to the bearing plate (36).

4. A UV electroplating primer spraying device according to claim 3, characterized in that: The outer wall of the rotating disk (22) is fixedly connected to a short shaft (38), and the short shaft (38) is located inside the circular movable frame (21). One end of the circular movable frame (21) is fixedly connected to a half gear (20). The bottom surface of the second rack (19) is fixedly connected to a connecting block (40), and the bottom end of the connecting block (40) is fixedly connected to the nozzle (6).

5. A UV electroplating primer spraying device according to claim 4, characterized in that: The two inner side walls of the U-shaped top plate (3) are rotatably connected to a transverse axis (23), and one end of the transverse axis (23) is fixedly connected to the turntable (22). The top end and the inner side wall of the U-shaped top plate (3) are both fixedly installed with a fixing plate (25), and one of the fixing plates (25) is rotatably connected to the transverse axis (23); A bevel gear 1 (24) is fixedly mounted on the outer wall of the horizontal shaft (23); a vertical shaft (26) is rotatably connected to the upper surface of another fixed plate (25); a bevel gear 2 (27) is fixedly connected to the upper end of the vertical shaft (26); and the bevel gear 2 (27) and the bevel gear 1 (24) are meshed with each other; a motor 1 is mounted on the outer wall of one of the fixed plates (25); and the output end of the motor 1 is connected to the horizontal shaft (23).

6. A UV electroplating primer spraying device according to claim 5, characterized in that: The upper end surface of the paint box (15) is rotatably connected to a stirring shaft (16); a plurality of stirring blades (17) are fixedly connected to the outer wall of the stirring shaft (16) and located inside the paint box (15); a liquid pump (18) is installed inside the paint box (15); and the output end of the liquid pump (18) is connected to one end of the telescopic connecting pipe (7); and a transmission belt (28) is sleeved between the vertical shaft (26) and the outside of the stirring shaft (16).

7. A UV electroplating primer spraying device according to claim 1, characterized in that: The fixing mechanism comprises a bearing frame (8), the bearing frame (8) is rotatably connected to an internal position of a support frame (1) through an axle rod, a transverse groove (29) is provided through the bottom surface of the bearing frame (8), a slide bar (9) is fixedly installed inside the transverse groove (29), two slide blocks (10) are sleeved on the outside of the slide bar (9), one end of the two slide blocks (10) are fixedly connected to a slide plate (35), and the outer side walls of the two slide plates (35) are fixedly connected to a rack (11).

8. A UV electroplating primer spraying device according to claim 7, characterized in that: The bottom surface of the carrier frame (8) is fixedly connected to a U-shaped mounting plate (12); the inner wall of the U-shaped mounting plate (12) is rotatably connected to a transmission gear (13) via a shaft, and the transmission gear (13) and two racks (11) are meshed with each other; a motor (2) is mounted on the bottom surface of the U-shaped mounting plate (12), and the output end of the motor (2) is connected to the transmission gear (13) via a shaft.

9. A UV electroplating primer spraying device according to claim 8, characterized in that: Two clamping blocks (34) are slidably connected inside the bearing frame (8), and the two clamping blocks (34) are fixedly connected to two slide plates (35) respectively. The outer wall of the clamping block (34) is provided with a plurality of insertion holes (32), and a plurality of push rods (31) are inserted inside the plurality of insertion holes (32). A support spring (33) is installed between one end of the push rod (31) and the inner wall of the clamping block (34); A plurality of motors three are installed on the outer side wall of the support frame (1), and the output ends of the plurality of motors three are connected to a plurality of bearing frames (8) via shaft rods.

10. A spraying method for a UV electroplating primer spraying device according to any one of claims 1 to 9, characterized in that: The specific steps of the spraying method are as follows: Step 1: Place each product to be sprayed inside each carrier frame (8) and between two clamping blocks (34), then use the second motor installed on the bottom surface of the U-shaped mounting plate (12) to drive the transmission gear (13) to rotate, cooperate with the two racks (11) to move, drive the two sliders (10) along the slide bar (9) and move closer to each other, thereby driving the two clamping blocks (34) to move closer to each other, and cooperate with each support rod (31) to clamp and fix the product; Step 2: The primer in the paint box (15) is pumped into the spray pipe (6) through the liquid pump (18) and the telescopic connecting pipe (7), and then sprayed out to the outer wall of the product through each spray head (39) to spray the product; Step 3: The motor 1 drives the horizontal shaft (23) to rotate, thereby driving the turntable (22) to rotate, and cooperates with the short shaft (38), the circular movable frame (21) and the half gear (20) to drive the rack 2 (19) to continuously move back and forth along the inside of the two U-shaped limit blocks (37), thereby being able to drive the connecting rod (5) connected by the connecting block (40) to reciprocate left and right, driving the nozzle (6) and each nozzle (39) to continuously move back and forth left and right, thereby expanding the range of spraying the primer; Step 4: The bevel gear 1 (24) rotates along with the horizontal shaft (23), driving the bevel gear 2 (27) to rotate. The vertical shaft (26) rotates along with the bevel gear 2 (27), and cooperates with the transmission belt (28) to drive the stirring shaft (16) to rotate. Each stirring blade (17) rotates along with the stirring shaft (16), and continuously stirs the primer in the paint box (15), making the primer more uniform. Step 5: After spraying is completed, release the clamping of the product, take the product out of the device, and complete the spraying.

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