Degradable plastic part surface spraying device and spraying process for skipping rope set

Abstract

The invention relates to the technical field of plastic part spraying, in particular to a degradable plastic part surface spraying device for a skipping rope set and a spraying process, and the degradable plastic part surface spraying device comprises a base, a machine body, a sealing door, a feeding box, a transmission box, a movable box, a handle, a console, a lifting mechanism, a rotating mechanism and a clamping mechanism. Lifting spraying of the sprayer is achieved through the lifting mechanism, part of the device can control the sprayer to conduct sliding spraying along the outer wall of the plastic part, constant-speed spraying of the outer wall of the plastic part is facilitated, and rotation of the handle is achieved through the rotating mechanism; according to the spraying device for the plastic part, part of devices can drive the outer wall of the plastic part to rotate to spraying areas with various concentrations, uniform coating on the outer wall of the plastic part is facilitated, clamping of a handle is achieved through a clamping mechanism, it is effectively avoided that part of the plastic part is prone to shaking in the spraying process, stable spraying on the outer wall of the plastic part is facilitated, and the spraying efficiency is improved. And the high efficiency, the uniformity and the stability of the device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic part spraying, and specifically to a surface spraying device and spraying process for degradable plastic parts used in a skipping rope set. Background Technique

[0002] Skipping rope exercise is an excellent fitness exercise that can effectively train an individual's reaction and endurance, help maintain an individual's posture, beauty, and coordination, thereby achieving the purpose of strengthening the body. A skipping rope generally consists of a rope handle, a bearing, a connection part, a rope body, a non-slip handle, a counter, a non-slip wheel and other structures combined. Different skipping ropes may have some differences, but the basic structures are generally the same. The handle (rope handle) of a skipping rope generally uses plastic as the raw material. Degradable plastic refers to a type of plastic whose various properties of its products can meet the use requirements, remain unchanged during the storage period, and can degrade into substances harmless to the environment under natural environmental conditions after use. Using degradable plastic as the raw material for the skipping rope handle conforms to the green environmental protection policy advocated by the country.

[0003] To meet the diverse selection of the skipping rope's appearance, generally, spraying processing is carried out on the skipping rope handle. The prior art for an automated paint spraying device for the surface of a plastic part, with the structure shown in Patent No. CN110496733A, includes a workbench, a U-shaped mounting plate, a paint spraying device, a plastic part hanging device, and a splash-proof device. The middle part of the upper end of the workbench is installed with a U-shaped mounting plate by welding. The middle part of the lower end of the U-shaped mounting plate is installed with a paint spraying device. The paint spraying device is arranged inside the plastic part hanging device, and the plastic hanging device is installed in the middle part of the upper end of the workbench by welding. A splash-proof device is arranged at the front end of the material hanging device. The automated paint spraying device for the surface of a plastic part provided by the present invention can solve problems such as low efficiency and poor quality of manual spraying, and the harmful paint threatening the health of operators. When using the existing paint spraying equipment for painting operations, there are areas on the plastic parts where paint cannot be sprayed on the surface during spraying, and secondary spraying processing is required. However, there are still areas where this device can be optimized.

[0004] The existing devices mainly spray the plastic parts within a certain fixed range, making it difficult for some devices to control the sprayer to slide and spray along the outer wall of the plastic parts, resulting in uneven coating on the outer walls of some plastic parts. Secondly, the spraying areas of some devices are affected by factors such as the spacing of spray holes, spraying range, and spraying distance, resulting in uneven concentrations. This makes it difficult for some devices to drive the outer wall of the plastic part to rotate to each concentration spraying area, resulting in uneven spraying on the outer walls of some plastic parts. Finally, some devices mainly suspend the plastic parts inside the machine body, making some plastic parts prone to shaking during the spraying process, resulting in difficulty in stably spraying the outer walls of some plastic parts, reducing the working efficiency and practicality of the device. Therefore, to solve the above problems, a surface spraying device and spraying process for degradable plastic parts used in a skipping rope set are proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a surface spraying device and spraying process for degradable plastic parts used in a skipping rope set to solve the problems in the prior art mentioned in the above background technology. The existing devices mainly spray the plastic parts within a certain fixed range, making it difficult for some devices to control the sprayer to slide and spray along the outer wall of the plastic parts, resulting in uneven coating on the outer walls of some plastic parts. Secondly, the spraying areas of some devices are affected by factors such as the spacing of spray holes, spraying range, and spraying distance, resulting in uneven concentrations. This makes it difficult for some devices to drive the outer wall of the plastic part to rotate to each concentration spraying area, resulting in uneven spraying on the outer walls of some plastic parts. Finally, some devices mainly suspend the plastic parts inside the machine body, making some plastic parts prone to shaking during the spraying process, resulting in difficulty in stably spraying the outer walls of some plastic parts.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A surface spraying device and spraying process for degradable plastic parts used in a skipping rope set, including a base. The top of the base is fixedly connected with a machine body. The front side inside the machine body is slidably connected with a sealing door. The middle of the top of the machine body is fixedly connected with a feeding box. The rear side of the bottom of the machine body is fixedly connected with a transmission box. Below the inside of the machine body, there are activity boxes arranged in a circular and integral distribution. A handle is placed on the top of the activity box. The right side of the outer wall of the machine body is fixedly connected with a control console;

[0007] An elevating mechanism is arranged inside the transmission box. The elevating mechanism includes a servo motor. The front side of the servo motor is fixedly connected to the middle of the rear side of the transmission box. A rotating mechanism is arranged at the bottom of the machine body. The rotating mechanism includes a fixed internal gear. The bottom of the fixed internal gear is fixedly connected to the bottom end inside the machine body. A clamping mechanism is arranged inside the activity box. The clamping mechanism includes three fixed rods. One end of each fixed rod is fixedly connected to the inner wall of the activity box.

[0008] Preferably, a transmission shaft is fixedly connected to the middle of the front side of the servo motor. The front end of the transmission shaft passes through the transmission box and is fixedly connected to a first bevel gear. The front side of the first bevel gear is meshed and connected to a second bevel gear. The inner wall of the second bevel gear is fixedly connected to a transmission worm. Both ends of the transmission worm are movably connected to the inner wall of the transmission box.

[0009] Preferably, transmission worm wheels are meshed and connected to both sides of the outer wall of the transmission worm. A transmission screw rod is fixedly connected to the middle of the top of the transmission worm wheel. The top end of the transmission screw rod passes through the machine body and is movably connected to the inner top of the machine body.

[0010] Preferably, a lifting screw sleeve is threadedly connected above the outer wall of the transmission screw rod. A spraying device is fixedly connected between the outer walls of the lifting screw sleeve. The shape of the spraying device is circular. A feeding pipe is fixedly connected to the rear side of the outer wall of the spraying device. The other end of the feeding pipe passes through the top plate of the machine body and is fixedly connected to the bottom of the feeding box.

[0011] Preferably, a linkage worm wheel is meshed and connected to the middle of the outer wall of the transmission worm. A movable shaft is fixedly connected to the middle of the top of the linkage worm wheel. The top end of the movable shaft passes through the bottom plate of the machine body and is fixedly connected to a rotating disc. A first limiting hole corresponding to the movable shaft is opened in the middle of the bottom plate of the machine body.

[0012] Preferably, a rotating gear is meshed with the inner wall of the fixed internal gear. A rotating shaft is fixedly connected to the middle of the top of the rotating gear. The top end of the rotating shaft penetrates through the rotating disc and is fixedly connected to the middle of the bottom of the movable box. A second limiting hole corresponding to the rotating shaft is opened in the outer ring of the rotating disc.

[0013] Preferably, a telescopic sleeve is sleeved on the inner side outer wall of the fixed rod. A wedge-shaped sliding plate is fixedly connected to the inner end of the telescopic sleeve. The top of the wedge-shaped sliding plate passes through the movable box. A limiting sliding slot corresponding to the wedge-shaped sliding plate is opened in the top of the movable box.

[0014] Preferably, an elastic cushion strip is fixedly connected to the outer side of the wedge-shaped sliding plate. The top of the elastic cushion strip is provided with an inclined surface corresponding to the wedge-shaped sliding plate.

[0015] Preferably, a spring is fixedly connected to the outer ring of the telescopic sleeve below the outer side of the wedge-shaped sliding plate. The outer end of the spring is fixedly connected to the inner wall of the movable box.

[0016] A surface spraying process for a degradable plastic part used in a skipping rope set includes the following steps:

[0017] S1: The handle is stably clamped by the clamping mechanism so that the handle is stably inserted into the middle of the top of the movable box;

[0018] S2: Control the lifting and sliding of the sprayer through the lifting mechanism, so that the inner wall of the sprayer sprays the outer wall of the handle during lifting;

[0019] S3: Control the revolution of the rotating disk, the movable box and the handle through the rotating mechanism, so that the handle at each angle can evenly adhere to the spraying material;

[0020] S4: At the same time, control the rotation of the movable box and the handle through the rotating mechanism, so that the outer wall of the handle can evenly adhere to the spraying material at each angle.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. In the present invention, through the servo motor, the transmission shaft, the first bevel gear, the second bevel gear, the transmission worm, the transmission worm wheel, the transmission screw, the lifting nut, the sprayer and the feed pipe in the lifting mechanism, the feeding box is started through the console, so that the feeding box feeds the sprayer through the feed pipe. At the same time, the servo motor is started through the console to drive the transmission shaft and the first bevel gear to rotate synchronously. The first bevel gear meshes to drive the second bevel gear and the transmission worm to rotate in a limited way. The transmission worm meshes to drive the transmission worm wheel to rotate synchronously. The transmission worm wheel drives the transmission screw to rotate in a limited way. The transmission screw drives the lifting nut to slide up and down. The lifting nut drives the sprayer to slide synchronously, realizing the lifting and spraying of the sprayer, so that some devices can control the sprayer to slide along the outer wall of the plastic part for spraying, facilitating uniform spraying on the outer wall of the plastic part and improving the efficiency and practicability of the device.

[0023] 2. In the present invention, through the rotating mechanism, the linkage worm wheel, the movable shaft, the rotating disk, the fixed internal gear, the rotating gear and the rotating shaft, the transmission worm meshes to drive the linkage worm wheel to rotate. The linkage worm wheel drives the movable shaft to rotate in a limited way on the inner wall of the first limiting hole. The movable shaft drives the rotating disk to rotate synchronously. The rotating disk drives the movable box and the handle to revolve. At the same time, the rotating disk drives the rotating shaft and the rotating gear to revolve synchronously, so that the inner wall of the fixed internal gear meshes to drive the rotating gear to rotate. The rotating gear drives the rotating shaft, the movable box and the handle to rotate, realizing the rotation of the handle, so that some devices can drive the outer wall of the plastic part to rotate to each concentration spraying area, facilitating uniform coating on the outer wall of the plastic part and improving the uniformity and practicability of the device.

[0024] 3. In the present invention, through the fixed rod, telescopic sleeve, wedge-shaped slide plate, limit sliding seam, elastic cushion strip, and spring in the clamping mechanism, the handle is sleeved on the outer wall of the elastic cushion strip, so that the elastic cushion strip drives the wedge-shaped slide plate to slide inwardly and limit on the inner wall of the limit sliding seam. The wedge-shaped slide plate drives the telescopic sleeve to slide on the outer wall of the fixed rod. At the same time, the wedge-shaped slide plate stretches the spring, so that the spring applies an outward elastic force to the wedge-shaped slide plate and the elastic cushion strip, realizing the clamping of the handle, effectively avoiding the easy shaking of some plastic parts during the spraying process, facilitating the stable spraying of the outer wall of the plastic parts, and improving the stability and practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the front three-dimensional structure view of the present invention;

[0026] Figure 2 is the front sectional three-dimensional structure view of the present invention;

[0027] Figure 3 is the partial structure top sectional three-dimensional structure view of the transmission box and the lifting mechanism of the present invention;

[0028] Figure 4 is the partial structure side sectional three-dimensional structure view of the machine body and the lifting mechanism of the present invention;

[0029] Figure 5 is the partial structure bottom sectional three-dimensional structure view of the machine body and the rotating mechanism of the present invention;

[0030] Figure 6 is the partial structure front sectional three-dimensional structure view of the movable box and the rotating mechanism of the present invention;

[0031] Figure 7 is the partial structure front sectional three-dimensional structure view of the movable box and the clamping mechanism of the present invention.

[0032] In the figure: 101, base; 102, machine body; 103, sealing door; 104, feeding box; 105, transmission box; 106, movable box; 107, handle; 108, console; 2, lifting mechanism; 201, servo motor; 202, transmission shaft; 203, first bevel gear; 204, second bevel gear; 205, transmission worm; 206, transmission worm gear; 207, transmission screw; 208, lifting nut; 209, sprayer; 210, material conveying pipe; 3, rotating mechanism; 301, linkage worm gear; 302, movable shaft; 303, rotating disc; 304, fixed internal gear; 305, rotating gear; 306, rotating shaft; 4, clamping mechanism; 401, fixed rod; 402, telescopic sleeve; 403, wedge-shaped slide plate; 404, limit sliding seam; 405, elastic cushion strip; 406, spring. DETAILED DESCRIPTION OF THE INVENTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figure 1-7 , an embodiment provided by the present invention:

[0035] A surface spraying device and spraying process for a degradable plastic part of a skipping rope set, including a base 101. A machine body 102 is fixedly connected to the top of the base 101. A sealing door 103 is slidably connected to the front side inside the machine body 102. A feeding box 104 is fixedly connected to the middle of the top of the machine body 102. A transmission box 105 is fixedly connected to the rear side of the bottom of the machine body 102. An activity box 106 distributed in an annular array is arranged below the inside of the machine body 102. A handle 107 is placed on the top of the activity box 106. A control console 108 is fixedly connected to the right side of the outer wall of the machine body 102;

[0036] A lifting mechanism 2 is arranged inside the transmission box 105. The lifting mechanism 2 includes a servo motor 201. The front side of the servo motor 201 is fixedly connected to the middle of the rear side of the transmission box 105. A transmission shaft 202 is fixedly connected to the middle of the front side of the servo motor 201. The front end of the transmission shaft 202 passes through the transmission box 105 and is fixedly connected to a first bevel gear 203. A second bevel gear 204 is meshed and connected to the front side of the first bevel gear 203. A transmission worm 205 is fixedly connected to the inner wall of the second bevel gear 204. The two ends of the transmission worm 205 are movably connected to the inner wall of the transmission box 105. Through this design, it is realized that the servo motor 201 drives the transmission worm 205 to rotate with limited position. Transmission worms 206 are meshed and connected to both sides of the outer wall of the transmission worm 205. A transmission screw 207 is fixedly connected to the middle of the top of the transmission worm 206. The top end of the transmission screw 207 passes through the machine body 102 and is movably connected to the top inner wall of the machine body 102. Through this design, it is realized that the transmission worm 206 drives the transmission screw 207 to rotate synchronously with limited position. A lifting nut 208 is threadedly connected to the upper part of the outer wall of the transmission screw 207. A spraying device 209 is fixedly connected between the outer walls of the lifting nut 208. The outer shape of the spraying device 209 is circular. A feeding pipe 210 is fixedly connected to the rear side of the outer wall of the spraying device 209. The other end of the feeding pipe 210 passes through the top plate of the machine body 102 and is fixedly connected to the bottom of the feeding box 104. Through this design, it is realized that the lifting nut 208 drives the spraying device 209 to slide up and down, so that the spraying device 209 sprays the outer wall of the handle 107.

[0037] A rotating mechanism 3 is provided at the bottom of the machine body 102. The rotating mechanism 3 includes a fixed internal gear 304. The bottom of the fixed internal gear 304 is fixedly connected to the inner bottom end of the machine body 102. The middle part of the outer wall of the transmission worm 205 is meshed with a linkage worm gear 301. The middle of the top of the linkage worm gear 301 is fixedly connected to a movable shaft 302. The top end of the movable shaft 302 passes through the bottom plate of the machine body 102 and is fixedly connected to a rotating disk 303. A first limiting hole corresponding to the movable shaft 302 is opened in the middle of the bottom plate of the machine body 102. Through this design, it is realized that the linkage worm gear 301 drives the movable shaft 302, the rotating disk 303, the movable box 106 and the handle 107 to revolve synchronously, so that the handle 107 at various angles is evenly sprayed. The inner wall of the fixed internal gear 304 is meshed with a rotating gear 305. The middle of the top of the rotating gear 305 is fixedly connected to a rotating shaft 306. The top end of the rotating shaft 306 penetrates through the rotating disk 303 and is fixedly connected to the middle of the bottom of the movable box 106. A second limiting hole corresponding to the rotating shaft 306 is opened in the outer ring of the rotating disk 303. Through this design, it is realized that the rotating gear 305 drives the rotating shaft 306, the movable box 106 and the handle 107 to rotate, so that the outer wall of the handle 107 is evenly sprayed at various angles.

[0038] A clamping mechanism 4 is provided inside the movable box 106. The clamping mechanism 4 includes three fixed rods 401. One end of the fixed rod 401 is fixedly connected to the inner wall of the movable box 106. A telescopic sleeve 402 is sleeved on the inner outer wall of the fixed rod 401. The inner end of the telescopic sleeve 402 is fixedly connected to a wedge-shaped slide plate 403. The top of the wedge-shaped slide plate 403 passes through the movable box 106. A limiting slide slot 404 corresponding to the wedge-shaped slide plate 403 is opened at the top of the movable box 106. Through this design, it is realized that the telescopic sleeve 402 drives the wedge-shaped slide plate 403 to slide in a limited way inside the limiting slide slot 404. An elastic cushion strip 405 is fixedly connected to the outer side of the wedge-shaped slide plate 403. The top of the elastic cushion strip 405 is provided with an inclined surface corresponding to the wedge-shaped slide plate 403. Through this design, it is realized that the wedge-shaped slide plate 403 drives the outer wall of the elastic cushion strip 405 to fit flexibly on the inner wall of the handle 107. A spring 406 is fixedly connected to the outer ring of the telescopic sleeve 402 below the outer side of the wedge-shaped slide plate 403. The outer end of the spring 406 is fixedly connected to the inner wall of the movable box 106. Through this design, it is realized that the spring 406 exerts an outward elastic force on the wedge-shaped slide plate 403 and the elastic cushion strip 405, which is convenient for clamping the handle 107.

[0039] Working principle: When it is necessary to perform lifting and spraying operations on the sprayer 209, first start the feeding tank 104 through the console 108, so that the feeding tank 104 supplies materials to the sprayer 209 through the feeding pipe 210. At the same time, start the servo motor 201 through the console 108. The servo motor 201 drives the transmission shaft 202 to rotate with limited position. The transmission shaft 202 drives the first bevel gear 203 to rotate synchronously. The first bevel gear 203 meshes with and drives the second bevel gear 204 to rotate. The second bevel gear 204 drives the transmission worm 205 to rotate with limited position. The transmission worm 205 meshes with and drives the transmission worm gear 206 to rotate synchronously. The transmission worm gear 206 drives the transmission screw 207 to rotate with limited position. The transmission screw 207 drives the lifting nut 208 to slide up and down. The lifting nut 208 drives the sprayer 209 to slide synchronously, realizing the lifting and spraying operation of the sprayer 209.

[0040] When it is necessary to rotate the handle 107, first drive the linkage worm gear 301 to rotate through the meshing of the transmission worm 205. The linkage worm gear 301 drives the movable shaft 302 to rotate with limited position on the inner wall of the first limiting hole. The movable shaft 302 drives the rotating disc 303 to rotate synchronously. The rotating disc 303 drives the movable box 106 and the handle 107 to revolve. At the same time, the rotating disc 303 drives the rotating shaft 306 and the rotating gear 305 to revolve synchronously, so that the inner wall of the fixed internal gear 304 meshes with and drives the rotating gear 305 to rotate self. The rotating gear 305 drives the rotating shaft 306, the movable box 106 and the handle 107 to rotate self, realizing the rotation operation of the handle 107.

[0041] When it is necessary to clamp the handle 107, first sleeved the handle 108 on the outer wall of the elastic cushion strip 405, so that the elastic cushion strip 405 drives the wedge-shaped slide plate 403 to slide inwards with limited position on the inner wall of the limiting slide slot 404. The wedge-shaped slide plate 403 drives the telescopic sleeve 302 to slide on the outer wall of the fixed rod 301. At the same time, the wedge-shaped slide plate 403 stretches the spring 406, so that the spring 406 exerts an outward elastic force on the wedge-shaped slide plate 403 and the elastic cushion strip 405, realizing the clamping operation of the handle 107, and the operation ends here.

[0042] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention in any form; any ordinary technician in the industry can smoothly implement the present invention according to the illustrations in the specification and the above; however, any slight changes, modifications and evolutions made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A surface spraying device for a degradable plastic part for a skipping rope set, comprising a base (101), characterized in that: The top of the base (101) is fixedly connected to a body (102); the front side of the interior of the body (102) is slidably connected to a sealing door (103); the middle of the top of the body (102) is fixedly connected to a feed box (104); the rear side of the bottom of the body (102) is fixedly connected to a transmission box (105); movable boxes (106) arranged in a circular shape are provided at the lower part of the interior of the body (102); a handle (107) is placed on the top of the movable box (106); and a control console (108) is fixedly connected to the right side of the outer wall of the body (102); A lifting mechanism (2) is provided inside the transmission box (105), and the lifting mechanism (2) includes a servo motor (201), and the front side of the servo motor (201) is fixedly connected to the middle part of the rear side of the transmission box (105). A rotating mechanism (3) is provided at the bottom of the machine body (102), and the rotating mechanism (3) includes a fixed internal gear (304), and the bottom of the fixed internal gear (304) is fixedly connected to the bottom end of the machine body (102). A clamping mechanism (4) is provided inside the movable box (106), and the clamping mechanism (4) includes three groups of fixed rods (401), and one end of the fixed rod (401) is fixedly connected to the inner wall of the movable box (106).

2. The surface spraying device for a degradable plastic part for a skipping rope set according to claim 1, characterized in that: A transmission shaft (202) is fixedly connected to the middle of the front side of the servo motor (201); the front end of the transmission shaft (202) passes through the transmission box (105) and is fixedly connected to a first bevel gear (203); the front side of the first bevel gear (203) is meshingly connected to a second bevel gear (204); a transmission worm (205) is fixedly connected to the inner wall of the second bevel gear (204); and both ends of the transmission worm (205) are movably connected to the inner wall of the transmission box (105).

3. The surface spraying device for a degradable plastic part for a skipping rope set according to claim 2, characterized in that: The outer walls of the transmission worm (205) are meshedly connected with a transmission worm wheel (206), the top middle of the transmission worm wheel (206) is fixedly connected with a transmission screw (207), and the top end of the transmission screw (207) passes through the machine body (102) and is movably connected to the top of the inner wall of the machine body (102).

4. The surface spraying device for a degradable plastic part for a skipping rope set according to claim 3, characterized in that: A lifting screw sleeve (208) is threadedly connected to the upper portion of the outer wall of the transmission screw rod (207), a sprayer (209) is fixedly connected between the outer walls of the lifting screw sleeve (208), the sprayer (209) is annular in shape, a feed pipe (210) is fixedly connected to the rear side of the outer wall of the sprayer (209), and the other end of the feed pipe (210) passes through the top plate of the machine body (102) and is fixedly connected to the bottom of the feed box (104).

5. The surface spraying device for a degradable plastic part for a skipping rope set according to claim 2, characterized in that: A linkage worm wheel (301) is meshedly connected to the middle of the outer wall of the transmission worm (205); a movable shaft (302) is fixedly connected to the middle of the top of the linkage worm wheel (301); the top of the movable shaft (302) passes through the bottom plate of the machine body (102) and is fixedly connected to a rotating disk (303); and a first limiting hole corresponding to the movable shaft (302) is opened in the middle of the bottom plate of the machine body (102).

6. The surface spraying device for a degradable plastic part for a skipping rope set according to claim 5, characterized in that: The inner wall of the fixed internal gear (304) is meshedly connected with a rotating gear (305), and a rotating shaft (306) is fixedly connected to the middle of the top of the rotating gear (305). The top end of the rotating shaft (306) passes through the rotating disk (303) and is fixedly connected to the middle of the bottom of the movable box (106). The outer ring of the rotating disk (303) is provided with a second limiting hole corresponding to the rotating shaft (306).

7. The surface spraying device for a degradable plastic part for a skipping rope set according to claim 1, characterized in that: The inner outer wall of the fixed rod (401) is sleeved with a telescopic sleeve (402), the inner end of the telescopic sleeve (402) is fixedly connected with a wedge-shaped slide plate (403), the top of the wedge-shaped slide plate (403) passes through the movable box (106), and the top of the movable box (106) is provided with a limiting sliding slot (404) corresponding to the wedge-shaped slide plate (403).

8. The surface spraying device for a degradable plastic part for a skipping rope set according to claim 7, characterized in that: An elastic pad strip (405) is fixedly connected to the outer side of the wedge-shaped slide plate (403), and a slope corresponding to the wedge-shaped slide plate (403) is provided on the top of the elastic pad strip (405).

9. The surface spraying device for a degradable plastic part for a skipping rope set according to claim 7, characterized in that: A spring (406) is fixedly connected to the outer ring of the telescopic sleeve (402) located below the outer side of the wedge-shaped slide plate (403), and the outer end of the spring (406) is fixedly connected to the inner wall of the movable box (106).

10. A surface spraying process for a degradable plastic part for a skipping rope set, characterized in that: The steps include: S1: stably clamping the handle (107) by the clamping mechanism (4), so that the handle (107) is stably inserted in the middle of the top of the movable box (106); S2: Controlling the sprayer (209) to rise and fall and slide by means of the lifting mechanism (2), so that the inner wall of the sprayer (209) is lifted and sprayed on the outer wall of the handle (107); S3: Controlling the rotation of the rotating disk (303), the movable box (106) and the handle (107) through the rotating mechanism (3) so that the handle (107) at each angle can be evenly coated with the spraying material; S4: The movable box (106) and the handle (107) are simultaneously controlled to rotate by the rotating mechanism (3), so that the outer wall of the handle (107) can be evenly coated with the spraying material at all angles.

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