Spraying equipment for automobile hinge surface treatment

Abstract

The invention relates to the technical field of spraying equipment, and discloses spraying equipment for automobile hinge surface treatment. The connecting frame body is arranged in the spraying frame; the rotating frame body is arranged in the connecting frame body, a plurality of connecting openings are formed in the outer side wall of the rotating frame body, and a plurality of convex strips are connected to the inner side wall of the connecting frame body; and when the connecting frame body moves upwards to a preset position, the connecting frame body can rapidly fall down, so that the hinge attached to the interior of the cavity after the rotating frame body rotates is shaken, the hinge is shaken to the position above a hinge pile so as to be subjected to next-time spraying, meanwhile, redundant powder attached to the hinge can be shaken off in the shaking process, and the spraying efficiency is improved. According to the hinge powder spraying device, powder can be more evenly attached to hinge workpieces, the stacked hinge workpieces can be sprayed by rotating the rotating frame for multiple times, and the purpose of spraying multiple hinges is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of spraying equipment, and in particular to a spraying equipment for surface treatment of automobile hinges. Background Art

[0002] As important connectors for doors, hoods, trunks, etc., automotive hinges need to have not only good mechanical properties, but also excellent corrosion resistance and beautiful appearance. In order to reduce the wear and corrosion of hinges, the hinges need to be sprayed, and the powdered paint is electrostatically adsorbed on the hinge surface, and then cured at high temperature to form a coating with excellent wear resistance and corrosion resistance.

[0003] Existing surface spraying equipment usually uses a reversible fixture to clamp the workpiece. Through automated control, the fixture can be flipped during the spraying process so that the nozzle can evenly cover all surfaces of the workpiece. This type of equipment is suitable for larger or complex-shaped workpieces.

[0004] Another example is the Chinese patent with publication (announcement) number: CN113663853A. An antistatic powder spraying device for metal parts production and processing discloses in the specification that "a metal part is placed between a first movable block and a second movable block, the metal part contacts a first pressure sensor, the first pressure sensor sends a signal when detecting that the pressure of the metal part reaches a preset value, the control module receives the signal to control the first reduction motor and the heating module to start, the first reduction motor output shaft drives the first screw to rotate, the first screw drives the movable frame and its upper components to move to the right, and the antistatic powder is sprayed on the metal part through the nozzle", "the fourth movable plate rotates, the third torsion spring deforms, when the cam is separated from the fourth movable plate, the fourth movable plate is reset under the action of the third torsion spring reset, and the metal part is repeatedly shaken in this way, thereby shaking the antistatic powder on the metal part evenly, and the metal part can be taken out after the third reduction motor is turned off", and the workpiece needs to be clamped first during the spraying process, and the powder on the workpiece is shaken evenly on the shaking mechanism after spraying. The above technical solution also needs to clamp a single workpiece and shake the powder evenly after spraying. The steps are cumbersome and batch parts cannot be sprayed. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a spraying device for surface treatment of automobile hinges capable of spraying hinges in batches, aiming to alleviate the above-mentioned problems at least to a certain extent.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A spraying device for surface treatment of automobile hinges, comprising: Spraying rack; A connecting frame disposed in the spraying frame; A rotating frame body is arranged in the connecting frame body, the outer side wall of the rotating frame body is provided with a plurality of connecting openings, and the inner side wall of the connecting frame body is connected with a plurality of convex strips; A feed port opened at the top of the connection frame corresponds to one of the connection openings, and a discharge port opened at the bottom of the connection frame corresponds to one of the connection openings; A spray box is arranged on the top of the spray rack, and a spray head is arranged at the bottom of the spray box, and the spray head extends into the rotating frame through the feed port and the connecting opening; A driving component provided on the spraying frame, used to rotate the rotating frame, and the rotating frame can rotate intermittently; Wherein, the driving component can lift the connecting frame upward after rotating the rotating frame by a preset angle, and the connecting frame can fall down quickly after moving upward to a preset height; Wherein, the driving component can move the position of the spray head before rotating the rotating frame so that the spray head leaves the rotating frame, and the spray head can stop spraying powder when it moves to a preset position.

[0007] Preferably, the driving component includes a bracket connected to the spray rack, the bracket is slidably connected to a support rod, the bracket is rotatably connected to a first shaft, the first shaft is connected to a first gear, the support rod is rotatably connected to a second shaft, the second shaft is provided with a second gear adapted to the first gear, the connecting frame is connected to a sleeve, the second shaft passes through the sleeve and is connected to the rotating frame, and the first gear is an incomplete gear.

[0008] Preferably, the driving component also includes a third shaft connected to the bracket, the third shaft is connected to a third gear adapted to the first gear, a connecting frame is slidably connected to the spray frame, a first spring is connected between the connecting frame and the spray frame, the sleeve is fixed to the connecting frame, a second spring is connected between the support rod and the bracket, the bracket is also rotatably connected to a fourth shaft, the fourth shaft is connected to a cam, and a first chain is connected between the third shaft and the fourth shaft.

[0009] Preferably, a motor is connected to the spraying frame, and a second chain is connected between the motor and the first shaft.

[0010] Preferably, a first tube is connected to the spray box, a second tube is slidably connected to the bottom of the first tube, a third spring is connected between the first tube and the second tube, and the nozzle is connected to the bottom of the second tube and communicates with the second tube, the first tube and the spray box.

[0011] Preferably, a winding shaft is provided on the second shaft, a connecting rod slidably connected to the spray frame is connected to the second tube, a guide shaft is rotatably connected to the spray frame, a traction rope is connected to the winding shaft, and the traction rope passes around the guide shaft and is connected to the connecting rod.

[0012] Preferably, a first ring is connected to the second shaft, the second gear is rotatably connected to the first ring, the outer side wall of the first ring is connected to a plurality of first limit bars, the inner side wall of the second gear is connected to a plurality of second limit bars, a fourth spring is connected between the first limit bar and the second limit bar, and the winding shaft is arranged on the second gear.

[0013] Preferably, the winding shaft is internally rotatably connected to a second ring, the second ring is fixed to the second gear, a plurality of connecting grooves are provided on the outer wall of the second ring, a push rod is slidably connected in the connecting groove, a fifth spring is connected between the push rod and the connecting groove, a slot matching the push rod is provided on the inner wall of the winding shaft, and one end of the push rod and the slot is semi-spherical.

[0014] Preferably, the first tube extends to the top of the spray box and is connected to a closed tube, the second tube extends into the closed tube, and the outer side wall of the second tube is provided with a plurality of communication ports.

[0015] Preferably, a baffle plate is rotatably connected in the discharge port.

[0016] In summary, the present invention mainly has the following beneficial effects: By setting up a connecting frame, an operator can put the hinge workpiece that needs to be sprayed into the connecting frame and the rotating frame from the feed port and the connecting opening, and can open the nozzle arranged at the bottom of the spray box, so that the spray powder in the spray box can enter the nozzle. After the nozzle is opened, the powder can be sprayed on the hinge workpiece, and the powder can be attached to the metal hinge due to static electricity. At the same time, the driving component can be turned on, and the driving component can rotate the rotating frame. The position of the nozzle can be moved while the driving component rotates the rotating box frame, so that the nozzle leaves the rotating frame from the connecting opening and leaves the connecting opening, so as to avoid affecting the rotating frame due to the position relationship of the nozzle when the rotating frame is rotated later. The rotation of the nozzle extends into the rotating frame. When the nozzle sprays powder, the powder will not be sprayed to the outside of the rotating frame due to the height of the nozzle, causing the problem of invalid spraying. Furthermore, the nozzle can stop spraying powder when it moves upward to a preset position, avoiding the problem of invalid spraying because the powder will not be sprayed on the outside of the rotating frame after the nozzle leaves the rotating frame. When the rotating frame rotates, the multiple convex strips arranged therein can move the hinges to disturb the hinges. During spraying, the powder adheres to the hinges at the upper part of the hinges in the pile. When the rotating frame rotates, the convex strips disturb the multiple hinges, and a certain height is formed between the convex strips and the inner wall of the rotating frame. The cavity is a cavity, and the hinge at the bottom can be in the cavity. With the rotation of the rotating frame, the hinge in the cavity can be brought out. After the driving component rotates the rotating frame by a preset angle, one of the multiple connection openings thereon corresponds to the position of the nozzle again. After the driving component rotates the rotating frame by a preset angle, the position of the connection frame can be lifted upward. The movement of the connection frame can drive the movement of the rotating frame. The set connection opening can prevent the rotating frame from interfering with the nozzle. When the connecting frame moves upward to a preset position, it can fall quickly to shake the hinge attached to the cavity after the rotating frame rotates, and shake the hinge above the hinge stack to receive the next The spraying of the hinge can be carried out, and at the same time, the excess powder attached to the hinge can be shaken off during the shaking, so that the powder can be more evenly attached to the hinge workpiece. After multiple rotations of the rotating frame, the piled hinge workpieces can be sprayed, thereby achieving the purpose of spraying multiple hinges and solving the problem of spraying equipment in the prior art. The present application solves the problem that the workpiece needs to be clamped first during the spraying process, and then the powder on the workpiece needs to be shaken evenly on the shaking mechanism after spraying. The above-mentioned technical solution also requires clamping a single workpiece and shaking the powder evenly after spraying. The steps are cumbersome and batches of parts cannot be sprayed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the spraying rack structure of the present invention; Figure 3It is a schematic diagram of the connection frame structure of the present invention; Figure 4 It is a schematic diagram of the discharge port structure of the present invention; Figure 5 It is a schematic diagram of the support structure of the present invention; Figure 6 It is a schematic diagram of the structure of the reel of the present invention; Figure 7 is a schematic diagram of the second ring structure of the present invention; Figure 8 is a schematic diagram of the first ring structure of the present invention; Fig. 9 It is a schematic diagram of the closed tube structure of the present invention.

[0018] Reference numerals: 100, spraying frame; 101, connecting frame; 102, rotating frame; 103, connecting opening; 104, convex strip; 105, feeding port; 106, discharging port; 107, spraying box; 108, nozzle; 109, baffle plate; 200, bracket; 201, support rod; 202, first shaft; 203, first gear; 204, second shaft; 205, second gear; 206, sleeve; 300, third shaft; 301, third gear; 302, connecting frame; 303, first spring; 304, second spring; 305, fourth shaft; 306, cam; 307, first chain; 308, motor; 309, second chain; 400, first tube; 401, second tube; 402, third spring; 403, closed tube; 404, communication port; 500, reel; 501, connecting rod; 502, guide shaft; 503, traction rope; 504, first ring; 505, first limit strip; 506, second limit strip; 507, fourth spring; 508, second ring; 509, connecting groove; 510, push rod; 511, fifth spring; 512, clamping groove. DETAILED DESCRIPTION

[0019] 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.

[0020] refer to Figure 1-Figure 9 , a spraying equipment for surface treatment of automobile hinges, comprising: Spraying rack 100; A connecting frame 101 disposed in the spraying frame 100; A rotating frame 102 is disposed in the connecting frame 101, a plurality of connecting openings 103 are opened on the outer wall of the rotating frame 102, and a plurality of convex strips 104 are connected to the inner wall of the connecting frame 101; The feed port 105 provided at the top of the connection frame 101 corresponds to one of the connection openings 103, and the discharge port 106 provided at the bottom of the connection frame 101 corresponds to one of the connection openings 103; A spray box 107 is disposed on the top of the spray rack 100, and a spray head 108 is disposed at the bottom of the spray box 107. The spray head 108 extends through the feed port 105 and the connection opening 103 to the inside of the rotating frame 102; The driving component provided on the spraying frame 100 is used to rotate the rotating frame 102, and the rotating frame 102 can rotate intermittently; The driving component can lift the connecting frame 101 upward after rotating the rotating frame 102 by a preset angle, and the connecting frame 101 can fall quickly after moving upward to a preset height; The driving component can move the position of the nozzle 108 before rotating the rotating frame 102, so that the nozzle 108 leaves the rotating frame 102, and the nozzle 108 can stop spraying powder when it moves to a preset position; By setting the connecting frame 101, the operator can put the hinge workpiece that needs to be sprayed into the connecting frame 101 and the rotating frame 102 from the feed port 105 and the connecting opening 103, and can open the nozzle 108 arranged at the bottom of the spray box 107, and the spray powder in the spray box 107 can enter the nozzle 108. After the nozzle 108 is turned on, the powder can be sprayed on the hinge workpiece, and the powder can be attached to the metal hinge due to static electricity. At the same time, the driving component can be turned on, and the driving component can rotate the rotating frame 102. The position of the nozzle 108 can be moved while the driving component rotates the rotating box frame, so that the nozzle 108 leaves the rotating frame 102 and leaves the connecting opening 103 from the connecting opening 103, so as to avoid the subsequent rotation of the rotating frame. When the rotating frame 102 is rotated, the position of the nozzle 108 affects the rotation of the rotating frame 102. The nozzle 108 is extended into the rotating frame 102. When the nozzle 108 sprays powder, the powder will not be sprayed to the outside of the rotating frame 102 due to the height of the nozzle 108, causing the problem of invalid spraying. Further, when the nozzle 108 moves upward to a preset position, it can stop spraying powder, avoiding the problem of invalid spraying because the powder will not be sprayed on the outside of the rotating frame 102 after the nozzle 108 leaves the rotating frame 102. When the rotating frame 102 rotates, the multiple convex strips 104 arranged therein can move the hinge to disturb the hinge. When spraying, the powder adheres to the hinge at the upper part of the hinge in the pile, and the rotating frame 10 During rotation, the convex strip 104 disturbs multiple hinges, and a cavity of a certain height is formed between the convex strip 104 and the inner wall of the rotating frame 102. The hinge at the bottom can be in the cavity. As the rotating frame 102 rotates, the hinge in the cavity can be brought out. After the driving component rotates the rotating frame 102 by a preset angle, one of the multiple connection openings 103 thereon corresponds to the position of the nozzle 108 again. After the driving component rotates the rotating frame 102 by a preset angle, the position of the connecting frame 101 can be lifted upward. The movement of the connecting frame 101 can drive the movement of the rotating frame 102. The provided connection opening 103 can prevent the rotating frame 102 from interfering with the nozzle 108, and can fall quickly when the connecting frame 101 moves upward to a preset position. , so as to shake the hinge attached to the cavity after the rotating frame 102 rotates, and shake the hinge above the hinge pile to receive the next spraying. At the same time, the excess powder attached to the hinge can be shaken off during the shaking, so that the powder can be more evenly attached to the hinge workpiece. After multiple rotations of the rotating frame 102, the piled hinge workpieces can be sprayed, thereby achieving the purpose of spraying multiple hinges, solving the spraying equipment in the prior art. The present application solves the problem that the workpiece needs to be clamped first during the spraying process, and the powder on the workpiece needs to be evenly shaken on the shaking mechanism after spraying. The above technical solution also requires clamping a single workpiece and shaking the powder evenly after spraying, which is cumbersome.The problem of not being able to spray paint on batches of parts.

[0021] As a further solution of the present invention, the driving component includes a bracket 200 connected to the spray rack 100, a support rod 201 is slidably connected to the bracket 200, a first shaft 202 is rotatably connected to the bracket 200, a first gear 203 is connected to the first shaft 202, a second shaft 204 is rotatably connected to the support rod 201, a second shaft 204 is provided with a second gear 205 adapted to the first gear 203, a sleeve 206 is connected to the connecting frame 101, the second shaft 204 passes through the sleeve 206 and is connected to the rotating frame 102, and the first gear 203 is an incomplete gear; By setting the first shaft 202, during application, the operator can rotate the first shaft 202. The rotation of the first shaft 202 can drive the first gear 203 thereon to rotate. When the first gear 203 rotates to a preset angle, it can engage with the second gear 205 and drive the second gear 205 to rotate, thereby allowing the second shaft 204 to rotate, so as to drive the rotating frame 102 to rotate a preset angle.

[0022] As a further solution of the present invention, the driving component also includes a third shaft 300 connected to the bracket 200, the third shaft 300 is connected to a third gear 301 adapted to the first gear 203, the spray rack 100 is slidably connected to a connecting frame 302, a first spring 303 is connected between the connecting frame 302 and the spray rack 100, the sleeve 206 is fixed to the connecting frame 302, a second spring 304 is connected between the support rod 201 and the bracket 200, the bracket 200 is also rotatably connected to a fourth shaft 305, the fourth shaft 305 is connected to a cam 306, and a first chain 307 is connected between the third shaft 300 and the fourth shaft 305; By setting the third shaft 300, after the first shaft 202 rotates through the first gear 203 and the second gear 205 to rotate the second shaft 204 and the rotating frame 102, the first gear 203 disengages from the second gear 205 and the first gear 203 engages with the third gear 301, so that the third shaft 300 can rotate. The rotation of the third shaft 300 can rotate the fourth shaft 305 through the first chain 307. The rotation of the fourth shaft 305 can make the protrusion of the cam 306 touch the connecting frame 302 to move the connecting frame 302. The movement of the connecting frame 302 can make the connecting frame 101 move upward through the sleeve 206, so as to achieve the purpose of making the connecting frame 101 move upward after the rotating frame 102 rotates.

[0023] As a further solution of the present invention, a motor 308 is connected to the spraying frame 100, and a second chain 309 is connected between the motor 308 and the first shaft 202; By providing the motor 308 , the motor 308 and the second chain 309 can provide driving force for the rotation of the first shaft 202 .

[0024] As a further solution of the present invention, a first tube 400 is connected to the spray box 107, a second tube 401 is slidably connected to the bottom of the first tube 400, a third spring 402 is connected between the first tube 400 and the second tube 401, and the spray head 108 is connected to the bottom of the second tube 401, and communicates with the second tube 401, the first tube 400 and the spray box 107; By setting the first tube 400, the powder in the spray box 107 can enter the first tube 400 and the second tube 401, and the nozzle 108 can receive the powder in the second tube 401. When used, the position of the second tube 401 can be moved upward to allow the second tube 401 to drive the nozzle 108 to move, so as to achieve the purpose of allowing the nozzle 108 to leave the rotating frame 102.

[0025] As a further solution of the present invention, a reel 500 is provided on the second shaft 204, a connecting rod 501 slidably connected to the spraying frame 100 is connected to the second tube 401, a guide shaft 502 is rotatably connected to the spraying frame 100, a traction rope 503 is connected to the reel 500, and the traction rope 503 passes around the guide shaft 502 and is connected to the connecting rod 501; By setting up the winding shaft 500, when in use, the winding shaft 500 can be rotated, and the rotation of the winding shaft 500 can reel in the traction rope 503. The traction rope 503 is pulled to move the position of the connecting rod 501. The upward movement of the connecting rod 501 can move the second tube 401 upward, so as to achieve the purpose of allowing the nozzle 108 to leave the connecting opening 103.

[0026] As a further solution of the present invention, a first ring 504 is connected to the second shaft 204, the second gear 205 is rotatably connected to the first ring 504, a plurality of first limit bars 505 are connected to the outer wall of the first ring 504, a plurality of second limit bars 506 are connected to the inner wall of the second gear 205, a fourth spring 507 is connected between the first limit bar 505 and the second limit bar 506, and the reel 500 is disposed on the second gear 205; By setting the first ring 504, when the first gear 203 rotates and meshes with the second gear 205, the second gear 205 will rotate. Since the second shaft 204 is connected to the rotating frame 102, its rotation will have resistance. Therefore, when the second gear 205 rotates, it will idle on the first ring 504 for a certain angle, so that the fourth spring 507 is stretched. After the second limit bar 506 contacts the first limit bar 505, the second gear 205 can drive the second shaft 204 to rotate when it continues to rotate, that is, the second gear 205 will idle on the second shaft 204 for a certain angle and then drive the second shaft 204 to rotate. During the period when the second gear 205 is idling, it can drive the winding shaft 500 to rotate to lift the position of the second tube 401 upward, so that the position of the nozzle 108 can be moved upward before rotating the second shaft 204 and the rotating frame 102, avoiding interference and spraying on the outer wall of the rotating frame 102.

[0027] As a further solution of the present invention, the interior of the winding shaft 500 is rotatably connected with a second ring 508, the second ring 508 is fixed to the second gear 205, a plurality of connecting grooves 509 are provided on the outer wall of the second ring 508, a push rod 510 is slidably connected in the connecting groove 509, a fifth spring 511 is connected between the push rod 510 and the connecting groove 509, a card slot 512 adapted to the push rod 510 is provided on the inner wall of the winding shaft 500, and one end of the push rod 510 and the card slot 512 are sleeved in a semi-spherical shape; By setting the top rod 510, in the initial state, the top rod 510 can be sleeved with the card slot 512 by the force of the fifth spring 511, and there is a certain friction force between the top rod 510 and the card slot 512. When the second gear 205 rotates, it can drive the second ring 508 to rotate. The rotation of the second ring 508 can rotate the winding shaft 500 through the friction force between the top rod 510 and the card slot 512. When the winding shaft 500 rotates and uses the traction rope 503 to move the second tube 401 upward, the second tube 401 moves and compresses the third spring 402 to the limit, and the rotation resistance of the winding shaft 500 increases to the limit. At this time, when the second gear 205 continues to rotate to allow the second shaft 204 to rotate, the top rod 510 can be compressed by the card slot 512 to shrink in the connecting slot 509, that is, the second ring 508 idles in the winding shaft 500, which can avoid the second shaft 204 from having difficulty in rotating due to position restrictions after the second tube 401 and the connecting rod 501 move to the extreme position. Furthermore, limiting the upward movement distance of the second tube 401 can avoid the nozzle 108 from leaving a higher position of the rotating frame 102, resulting in a problem in which part of the powder is sprayed on the outside when the nozzle 108 is working later.

[0028] As a further solution of the present invention, the first tube 400 extends to the top of the spray box 107 and is connected to a closed tube 403, the second tube 401 extends into the closed tube 403, and the outer wall of the second tube 401 is provided with a plurality of communication ports 404; By setting the connecting port 404, in the initial state, the powder can enter the second tube 401 through the gap between the closed tube 403 and the first tube 400 and the connecting port 404. When the traction rope 503 pulls the connecting rod 501 to allow the second tube 401 to move upward, the connecting port 404 can enter the closed tube 403. The connecting port 404 is closed by the closed tube 403 to prevent the powder from continuing to enter. During the rising process of the second tube 401 and the nozzle 108 and before the nozzle 108 completely leaves the rotating frame 102, the residual powder in the second tube 401 can continue to be sprayed out by the nozzle 108, but there is no new powder supply. After the nozzle 108 completely leaves the rotating frame 102, the powder involved in the second tube 401 is completely sprayed out, so that the powder spraying can be stopped when the nozzle 108 is moved to a preset distance, thereby avoiding the problem of invalid spraying.

[0029] As a further solution of the present invention, a baffle plate 109 is rotatably connected in the discharge port 106; By providing the material baffle plate 109 , a buckle can be provided between the material baffle plate 109 and the connecting frame 101 to ensure that the material outlet 106 is closed during the spraying process.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spraying equipment for automobile hinge surface treatment, characterized in that: include: Spraying rack (100); A connecting frame (101) disposed in the spraying frame (100); A rotating frame (102) is arranged inside the connecting frame (101), the outer wall of the rotating frame (102) being provided with a plurality of connecting openings (103), and the inner wall of the connecting frame (101) being connected with a plurality of convex strips (104); A material inlet (105) provided at the top of the connection frame (101) corresponds to one of the connection openings (103); and a material outlet (106) provided at the bottom of the connection frame (101) corresponds to one of the connection openings (103); A spray box (107) is arranged on the top of the spray rack (100), and a spray head (108) is arranged at the bottom of the spray box (107), and the spray head (108) passes through the feed port (105) and the connecting opening (103) and extends into the rotating frame (102); A driving component provided on the spraying frame (100), used for rotating the rotating frame (102), wherein the rotating frame (102) is capable of intermittent rotation; The driving component is capable of lifting the connecting frame (101) upward after rotating the rotating frame (102) by a preset angle, and the connecting frame (101) is capable of falling rapidly after moving upward to a preset height; The driving component is capable of moving the position of the spray head (108) before rotating the rotating frame (102) so that the spray head (108) leaves the rotating frame (102), and the spray head (108) is capable of stopping spraying powder when moving to a preset position.

2. The spraying equipment for automobile hinge surface treatment according to claim 1, characterized in that: The driving component comprises a bracket (200) connected to the spraying frame (100), the bracket (200) being slidably connected to a support rod (201), the bracket (200) being rotatably connected to a first shaft (202), the first shaft (202) being connected to a first gear (203), the support rod (201) being rotatably connected to a second shaft (204), the second shaft (204) being provided with a second gear (205) adapted to the first gear (203), the connecting frame (101) being connected to a sleeve (206), the second shaft (204) passing through the sleeve (206) to be connected to the rotating frame (102), and the first gear (203) being an incomplete gear.

3. The spraying equipment for automobile hinge surface treatment according to claim 2, characterized in that: The driving component further comprises a third shaft (300) connected to the bracket (200), the third shaft (300) being connected to a third gear (301) adapted to the first gear (203), a connecting frame (302) being slidably connected to the spraying frame (100), a first spring (303) being connected between the connecting frame (302) and the spraying frame (100), the sleeve (206) being fixed to the connecting frame (302), a second spring (304) being connected between the support rod (201) and the bracket (200), a fourth shaft (305) being rotatably connected to the bracket (200), a cam (306) being connected to the fourth shaft (305), and a first chain (307) being connected between the third shaft (300) and the fourth shaft (305).

4. The spraying equipment for automobile hinge surface treatment according to claim 2, characterized in that: The spraying frame (100) is connected to a motor (308), and a second chain (309) is connected between the motor (308) and the first shaft (202).

5. The spraying equipment for automobile hinge surface treatment according to claim 2, characterized in that: A first tube (400) is connected inside the spray box (107); a second tube (401) is slidably connected to the bottom of the first tube (400); a third spring (402) is connected between the first tube (400) and the second tube (401); and the spray head (108) is connected to the bottom of the second tube (401) and is in communication with the second tube (401), the first tube (400) and the spray box (107).

6. The spraying equipment for automobile hinge surface treatment according to claim 5, characterized in that: The second shaft (204) is provided with a reel (500), the second tube (401) is connected with a connecting rod (501) which is slidably connected to the spraying frame (100), the spraying frame (100) is rotatably connected with a guide shaft (502), the reel (500) is connected with a traction rope (503), and the traction rope (503) passes around the guide shaft (502) and is connected to the connecting rod (501).

7. The spraying equipment for automobile hinge surface treatment according to claim 6, characterized in that: The second shaft (204) is connected to a first ring (504), the second gear (205) is rotatably connected to the first ring (504), the outer wall of the first ring (504) is connected to a plurality of first limit bars (505), the inner wall of the second gear (205) is connected to a plurality of second limit bars (506), a fourth spring (507) is connected between the first limit bars (505) and the second limit bars (506), and the winding shaft (500) is arranged on the second gear (205).

8. The spraying equipment for automobile hinge surface treatment according to claim 6, characterized in that: A second ring (508) is rotatably connected inside the winding shaft (500), and the second ring (508) is fixed to the second gear (205). A plurality of connecting grooves (509) are provided on the outer wall of the second ring (508), and a push rod (510) is slidably connected inside the connecting groove (509). A fifth spring (511) is connected between the push rod (510) and the connecting groove (509). A slot (512) adapted to the push rod (510) is provided on the inner wall of the winding shaft (500), and one end of the push rod (510) sleeved with the slot (512) is semi-spherical.

9. The spraying equipment for automobile hinge surface treatment according to claim 5, characterized in that: The first tube (400) extends to the top of the spray box (107) and is connected to a closed tube (403); the second tube (401) extends into the closed tube (403); and the outer wall of the second tube (401) is provided with a plurality of communication ports (404).

10. The spraying equipment for automobile hinge surface treatment according to claim 1, characterized in that: A material blocking plate (109) is rotatably connected inside the material outlet (106).

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