Full-automatic coating production line for automobile parts

Abstract

The utility model discloses a full-automatic coating production line for automobile parts, and relates to the technical field of automobile production, in particular to a spraying chamber, a pretreatment chamber, a drying chamber and an automobile part conveying structure, the feeding end of the spraying chamber is provided with the pretreatment chamber, the discharging end of the spraying chamber is provided with the drying chamber, the spraying chamber comprises a base and a chamber body, and the drying chamber is provided with an air inlet. An inner cavity of the chamber body is fixedly connected with a partition plate, the partition plate divides the inner cavity of the chamber body into a spraying cavity and a resetting cavity, through holes are formed in the two ends of the partition plate, the spraying cavity is communicated with the resetting cavity through the through holes, and a resetting structure is arranged in the resetting cavity. According to the full-automatic coating production line for the automobile parts, the movable spraying structure is arranged, paint mist generated in the spraying process is intercepted through the movable spraying structure, the diffusion range of the paint mist is limited, treatment of the paint mist is facilitated, the paint mist can be prevented from influencing other automobile parts, and the coating quality of the automobile parts is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automobile production technology, specifically to a fully automated painting production line for automobile parts. Background Technology

[0002] After the automotive chassis and other components are manufactured, they need to be painted. Painting is often done using a painting production line, and the spray booth is a crucial component of this line. In related technologies, the volume of the spray booth is usually larger than the volume of the parts being painted. During continuous painting, paint mist permeates the spray booth. However, the treatment of paint mist within the spray booth is a continuous process and cannot be completed instantly. This easily leads to residual paint mist in the spray booth, which adheres to unpainted automotive parts, affecting the painting quality. Furthermore, the large diffusion range of the paint mist makes its treatment difficult. Therefore, this application proposes a fully automated painting production line for automotive parts. Utility Model Content

[0003] This invention provides a fully automated coating production line for automotive parts, which solves the problems mentioned in the background art, such as the large diffusion range of paint mist, which is not conducive to handling, and the impact of untreated paint mist on the automotive parts to be coated.

[0004] This utility model provides the following technical solution: a fully automatic coating production line for automotive parts, including a spraying chamber, a pretreatment chamber, a drying chamber, and an automotive parts conveying structure. The spraying chamber has a pretreatment chamber at its inlet end and a drying chamber at its outlet end. The spraying chamber includes a base and a chamber body. A partition plate is fixedly connected to the inner cavity of the chamber body, dividing the inner cavity of the chamber body into a spraying chamber and a reset chamber. Both ends of the partition plate are provided with through holes, and the spraying chamber and the reset chamber are connected through the through holes. A reset structure is provided inside the reset chamber.

[0005] The inner cavities of the spraying chamber, pretreatment chamber, and drying chamber are interconnected, forming an automotive parts spraying processing area. The automotive parts conveying structure is positioned above the automotive parts spraying processing area. The inner cavity of the spraying chamber is equipped with at least two movable spraying structures. A conveyor belt is movably connected to the bottom end of the spraying chamber on the side away from the partition plate. Each movable spraying structure includes a fixed block. Automatic winding assemblies are provided at both ends of the fixed block near the conveyor belt. Both sides of the fixed block are connected to a mist-absorbing plate through a movable structure. The mist-absorbing plate is connected to the shielding plate of the automatic winding assembly. An electromagnet is provided at the bottom end of the mist-absorbing plate. When the electromagnet is energized, it is magnetically attracted to the conveyor belt. A spraying head is provided in the middle of the fixed block near the conveyor belt.

[0006] Preferably, the automatic winding assembly includes a housing connected to a fixed block, a rotating rod movably connected to the center of the housing cavity, a coil spring fixedly connected to the outer ring of the rotating rod, the other end of the coil spring being fixedly connected to one end of a shielding plate, the shielding plate being wound around the outer surface of the coil spring, the other end of the shielding plate penetrating the housing and fixedly connected to a fog-absorbing plate, and the shielding plate being movably connected to the housing.

[0007] Preferably, the top of the mobile spraying structure is at the same height as the bottom of the automotive parts conveying structure, a sealing plate is fixedly connected to the bottom of the fixed block, and the bottom end of the shielding plate is movably connected to the inner cavity of the sealing plate.

[0008] Preferably, the movable structure includes a ball screw movably connected to the bottom end of the fixed block, a ball nut threadedly connected to the outer ring of the ball screw , and a servo motor fixedly connected to the fixed block. The output shaft end of the servo motor is fixedly connected to the end of the ball screw that is away from the conveyor belt, and the mist suction plate is fixedly connected to the ball nut .

[0009] Preferably, the reset structure includes a ball screw two and a servo motor two movably connected to the reset cavity on the side away from the partition plate. The ball screw two is driven by the servo motor two. The outer ring of the ball screw two is threaded with a ball nut two. The side of the ball nut two near the partition plate is connected to a transfer plate through a hydraulic telescopic rod one. An electromagnet two is embedded in the transfer plate. When the electromagnet two is energized, it is magnetically attracted to the fixed block.

[0010] Preferably, the base is a hollow structure, and a connecting groove is provided at the top of the inner cavity of the base. The inner cavity of the base is connected to the spraying cavity through the connecting groove. A connecting structure adapted to the movable spraying structure is provided inside the base. The connecting structure includes a second hydraulic telescopic rod connected to the base, a third hydraulic telescopic rod connected to the end of the output shaft of the second hydraulic telescopic rod, a fourth hydraulic telescopic rod connected to the end of the output shaft of the third hydraulic telescopic rod, and a lifting block connected to the end of the output shaft of the fourth hydraulic telescopic rod. The lifting block is adapted to the connecting groove. A power plug, a paint delivery pipe, and a paint mist delivery pipe are provided on the lifting block. The bottom of the fixed block is provided with a power socket adapted to the power plug, a paint channel adapted to the paint delivery pipe, and a connecting pipe adapted to the paint mist delivery pipe. The other end of the connecting pipe is connected to the inner cavity of the mist suction plate, and the other end of the paint channel is connected to the spray head.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This fully automated automotive parts painting production line is equipped with a moving spraying structure. The moving spraying structure intercepts the paint mist generated during the spraying process, limits the spread of the paint mist, facilitates the handling of the paint mist, and can prevent the paint mist from affecting other automotive parts, thus ensuring the coating quality of automotive parts.

[0013] 2. This fully automated coating production line for automotive parts allows the spray head to move along with the automotive parts, ensuring a consistent spray trajectory and avoiding uneven coating caused by changes in the distance between the spray head and the workpiece. It also ensures that the coating thickness and uniformity remain consistent, thus improving the coating quality of automotive parts. Attached Figure Description

[0014] Figure 1 This is a front view of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the spray booth structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the interior of the spraying chamber of this utility model.

[0017] Figure 4 The structure of this utility model Figure 3 Rear view illustration;

[0018] Figure 5 This is a schematic diagram of the internal structure of the base of this utility model;

[0019] Figure 6 This is a schematic diagram showing the connection between the fixing block and the lifting block in this utility model.

[0020] Figure 7 The structure of this utility model Figure 6 Explosion diagram.

[0021] In the diagram: 1. Spraying booth; 2. Pre-treatment booth; 3. Drying booth; 4. Automotive parts conveying structure; 5. Air purifier; 6. Exhaust fan; 7. Paint storage tank; 8. Paint pump; 9. Base; 10. Chamber body; 11. Fixing block; 12. Masking plate; 13. Conveyor belt; 14. Servo motor three; 15. Synchronous roller; 16. Fog suction plate; 17. Through hole; 18. Partition plate; 19. Servo motor two; 20. Ball screw nut two; 21. Hydraulic telescopic rod one; 22. Ball screw two; 23. Paint 24. Fog delivery pipe; 25. Paint delivery pipe; 26. Power plug; 27. Hydraulic telescopic rod II; 28. Hydraulic telescopic rod III; 29. ​​Lifting block; 30. Hydraulic telescopic rod IV; 31. Connecting groove; 32. Transfer plate; 33. Electromagnet II; 34. Rotating rod; 35. Disc spring; 36. Servo motor I; 37. Sealing plate; 38. Electromagnet I; 39. Ball nut I; 40. Ball screw I; 41. Connecting pipe; 42. Paint channel; 43. Power socket; 44. Spray head; 45. Housing. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please see Figures 1-7 This utility model provides a fully automated painting production line for automotive parts. Based on the existing fully automated painting production line for automotive parts, the spraying chamber is modified to solve the problems of large paint mist diffusion range in the existing spraying chamber, which is not conducive to handling, and the untreated paint mist will affect the automotive parts to be painted. The fully automated painting production line for automotive parts proposed in this application includes a spraying chamber 1, a pretreatment chamber 2, a drying chamber 3, and an automotive parts conveying structure 4. The pretreatment chamber 2 is set at the feeding end of the spraying chamber 1, and the drying chamber 3 is set at the discharging end of the spraying chamber 1. The spraying chamber 1 includes a base 9 and a chamber body 10. A partition plate 18 is fixedly connected to the inner cavity of the chamber body 10, dividing the inner cavity of the chamber body 10 into a spraying chamber and a reset chamber. The inner cavities of the spraying chamber, the pretreatment chamber 2, and the drying chamber 3 are in a connected state, forming an automotive parts spraying processing area. The automotive parts conveying structure 4 is set above the automotive parts spraying processing area.

[0025] The inner cavity of the spraying chamber is provided with at least two movable spraying structures. The top of the movable spraying structure is at the same height as the bottom of the automotive parts conveying structure 4. The movable spraying structure includes a fixed block 11, an automatic winding assembly, and a fog suction plate 16.

[0026] Automatic winding assemblies are provided at both ends of the fixed block 11 on the side away from the partition plate 18. The automatic winding assembly includes a housing 46 connected to the fixed block 11. A rotating rod 33 is movably connected to the middle of the inner cavity of the housing 46. A coil spring 34 is fixedly connected to the outer ring of the rotating rod 33. The other end of the coil spring 34 is fixedly connected to one end of the shielding plate 12. The shielding plate 12 is wound around the outer surface of the coil spring 34. The other end of the shielding plate 12 passes through the housing 46 and is fixedly connected to the fog-absorbing plate 16. The shielding plate 12 is movably connected to the housing 46. With the automatic winding assembly, the length of the shielding sheet 12 exposed outside the housing 46 can be changed under the action of external force, thus removing the restriction on the shielding sheet 12. Under the action of the spring 34's rebound force, the shielding sheet 12 can be rewound onto the spring 34, realizing the automatic storage of the shielding sheet 12. The shielding sheet 12 can intercept paint mist and prevent it from spreading. The shielding sheet 12 can be made of rubber, and ventilation holes are opened on the shielding sheet 12, giving it a breathable function and facilitating the removal of paint mist.

[0027] Both sides of the fixed block 11 are connected to a mist-absorbing plate 16 via a movable structure. The movable structure includes a ball screw 39 movably connected to the bottom end of the fixed block 11, a ball nut 38 threadedly connected to the outer ring of the ball screw 39, and a servo motor 35 fixedly connected to the fixed block 11. The output shaft end of the servo motor 35 is fixedly connected to the end of the ball screw 39 near the partition plate 18 via a reducer. The mist-absorbing plate 16 is fixedly connected to the ball nut 38. When the servo motor 35 is working, it can drive the ball screw 39 to rotate. The rotation of the ball screw 39 causes the ball nut 38 threadedly connected to it to move in the direction of the ball screw 39. When the ball nut 38 moves, it drives the mist-absorbing plate 16 to move. The mist-absorbing plate 16 is connected to the other end of the baffle plate 12. With this arrangement, when the mist-absorbing plate 16 moves, the exposed length of the baffle plate 12 can be changed.

[0028] The fog-absorbing plate 16 has a hollow structure. Holes are evenly arranged on the inner side of the inner cavity of the fog-absorbing plate 16. A connecting pipe 40 is connected to the inner cavity of the fog-absorbing plate 16, and the other end of the connecting pipe 40 extends to the bottom of the fixing block 11.

[0029] An electromagnet 37 is installed at the bottom of the mist-absorbing plate 16. A conveyor belt 13 is movably connected to the bottom of the spraying cavity on the side away from the partition plate 18. Under the action of the moving structure, the electromagnet 37 can contact the conveyor belt 13. Both ends of the spraying cavity on the side away from the partition plate 18 are movably connected to synchronous rollers 15. The two synchronous rollers 15 are connected by transmission through the conveyor belt 13. A servo motor 14 is installed on the side of the spraying cavity away from the partition plate 18. The output shaft of the servo motor 14 is fixedly connected to the synchronous rollers 15 through a reducer. When the servo motor 14 rotates, it can drive the synchronous rollers 15 connected to it to rotate. The synchronous rollers 15 drive the conveyor belt 13 to rotate. When the electromagnet 37 is energized, the electromagnet 37 and the conveyor belt 13 are magnetically attracted. With this configuration, the movement of the conveyor belt 13 can drive the moving spraying structure to move. In some embodiments of this application, ferromagnetic materials, such as iron sheets, are uniformly embedded in the conveyor belt 13. The ferromagnetic materials will be magnetically attracted to the electromagnet 37.

[0030] A spray head 43 is provided in the middle of the fixed block 11 near the conveyor belt 13. The spray head 43 can spray paint onto the car parts located between the two shielding plates 12 to achieve the painting of the car parts.

[0031] A sealing plate 36 is fixedly connected to the bottom of the fixing block 11, and the bottom end of the shielding plate 12 is movably connected to the inner cavity of the sealing plate 36. The bottom of the sealing plate 36 is at the same height as the bottom of the spraying cavity.

[0032] When this application is in use, when the automotive component moves between the two shielding plates 12 of the movable spraying structure, the movable structure drives the mist suction plate 16 to move until the mist suction plate 16 contacts the side of the spraying cavity away from the partition plate 18. At this time, the shielding plate 12, the fixing block 11, the side of the spraying cavity away from the partition plate 18, the bottom of the spraying cavity, and the bottom of the automotive component conveying structure 4 form a sealed space. The sealed space can intercept the paint mist generated during the spraying process, limit the diffusion range of the paint mist, facilitate the treatment of the paint mist, and prevent the paint mist from affecting other automotive components.

[0033] Both ends of the partition plate 18 are provided with through holes 17, which are adapted to the fixing block 11. The spraying chamber and the reset chamber are connected through the through holes 17. The reset chamber is provided with a reset structure. The reset structure includes a ball screw 22 and a servo motor 19 movably connected to the side of the reset chamber away from the partition plate 18. The ball screw 22 is driven by the servo motor 19, which is connected to the reset chamber. The outer ring of the ball screw 22 is threaded with a ball nut 20. The side of the ball nut 20 near the partition plate 18 is connected to a transfer plate 31 via a hydraulic telescopic rod 21. An electromagnet 32 ​​is embedded in the transfer plate 31. When the electromagnet 32 ​​is energized, it is magnetically attracted to the fixing block 11. The fixing block 11 can be made of iron. Through the reset structure, when the spraying chamber is moved... When the fixed block 11 in the coating structure is aligned with the through hole 17 near the drying chamber 3, the hydraulic telescopic rod 21 extends, driving the transfer plate 31 to move until the transfer plate 31 contacts the fixed block 11. Then, the electromagnet 32 ​​is energized, and the electromagnet 32 ​​and the fixed block 11 are magnetically attracted, causing the hydraulic telescopic rod 21 to retract. The hydraulic telescopic rod 21 then drives the movable coating structure to move until it moves from the coating chamber to the reset chamber. The servo motor 19 drives the ball screw 22 to rotate. Under the rotation of the ball screw 22, the ball nut 20 drives the movable coating structure to move in the direction of the ball screw 22 until it aligns with another through hole 17. The hydraulic telescopic rod 21 then extends, allowing the movable coating structure to be reset, facilitating its reuse.

[0034] The base 9 has a hollow structure. A connecting groove 30 is provided at the top of the inner cavity of the base 9. The inner cavity of the base 9 is connected to the spraying cavity through the connecting groove 30. The base 9 is provided with a connecting structure adapted to the mobile spraying structure. The connecting structure includes a hydraulic telescopic rod 26 connected to the base 9, a hydraulic telescopic rod 27 connected to the end of the output shaft of the hydraulic telescopic rod 26, a hydraulic telescopic rod 29 connected to the end of the output shaft of the hydraulic telescopic rod 27, and a lifting block 28 connected to the end of the output shaft of the hydraulic telescopic rod 29. The lifting block 28 is adapted to the connecting groove 30. The lifting block 28 is provided with a power plug 25, a paint delivery pipe 24, and a paint mist delivery pipe 23. The bottom of the fixed block 11 is provided with a power socket 42 adapted to the power plug 25, a paint channel 41 adapted to the paint delivery pipe 24, and a connecting pipe 40 adapted to the paint mist delivery pipe 23. The other end of the connecting pipe 40 is connected to the inner cavity of the mist suction plate 16, and the other end of the paint channel 41 is connected to the spray head 43. An electric ball valve is provided at one end of the paint delivery pipe 24. The electric ball valve is used to control the opening and closing of the paint delivery pipe 24 to prevent the paint from being discharged from the paint delivery pipe 24 after the paint delivery pipe 24 is separated from the paint channel 41.

[0035] The exterior of the spray booth 1 is equipped with a paint storage tank 7, a paint pump 8, an exhaust fan 6, and an air purifier 5. The inlet of the paint pump 8 is connected to the paint storage tank 7 via a paint inlet pipe, and the outlet of the paint pump 8 is connected to the paint delivery pipe 24. When the paint pump 8 is working, it pumps paint into the inner cavity of the paint delivery pipe 24. The paint in the inner cavity of the paint delivery pipe 24 enters the spray head 43 through the paint channel 41 and is sprayed onto the automotive parts through the spray head 43 to achieve the painting of the automotive parts. The air inlet of the exhaust fan 6 is connected to the other end of the paint mist delivery pipe 23, and the air outlet of the exhaust fan 6 is connected to the air inlet of the air purifier 5. When the exhaust fan 6 is working, the paint mist generated during the spraying process of the moving spray structure enters the inner cavity of the mist suction plate 16 through the holes on the mist suction plate 16. The paint mist in the inner cavity of the mist suction plate 16 is transported to the air purifier 5 through the connecting pipe 40, the paint mist delivery pipe 23, and the exhaust fan 6, and the air purifier 5 is used to purify the paint mist.

[0036] All electrical components involved in this application are prior art. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies can be connected by wires. According to the actual situation, a suitable controller can be selected to meet the control requirements. For specific connections and control sequences, please refer to the description below. The electrical connection between each electrical component is completed in the order of operation. The detailed connection methods are well known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0037] In summary: When this fully automated automotive parts painting production line is in use, it utilizes the existing automotive parts conveying structure 4 to transport the automotive parts. Servo motor 3 14 operates, driving the conveyor belt 13 to rotate via synchronous roller 15. The rotation speed of the conveyor belt 13 is the same as the conveying speed of the automotive parts conveying structure. When the automotive parts enter the inner side of the moving spraying structure, the moving structure 1 moves the mist suction plate 16 until it contacts the conveyor belt 13. At this point, the automotive parts are located between two shielding plates 12. Electromagnet 1 37 is energized and magnetically attracts the conveyor belt 13. The conveyor belt 13 then moves the moving spraying structure. During this movement, the paint pump 8 operates, pumping paint through the paint delivery pipe 24 and paint channel 41 into the spray head 43. The spray head 43 then sprays the paint, achieving the painting of the automotive parts. The paint mist generated during the process is confined to the shielding plate 12, the fixing block 11, the side of the spraying chamber away from the partition plate 18, the bottom of the spraying chamber, and the bottom of the automotive parts conveying structure 4 to form a sealed space. The sealed space can intercept the paint mist generated during the spraying process, limit the diffusion range of the paint mist, facilitate the treatment of the paint mist, and prevent the paint mist from affecting other automotive parts. During the spraying process, the exhaust fan 6 works, which causes the paint mist to be transported to the air purifier 5 through the connecting pipe 40, the paint mist conveying pipe 23, and the exhaust fan 6. The air purifier 5 is used to purify the paint mist. When the fixing block 11 is aligned with the through hole 17 near the drying chamber, the electromagnet 37 is de-energized, and the servo motor 35 rotates in the reverse direction. The reverse rotation of the servo motor 35 causes the mist suction plate 16 to move in the reverse direction, releasing the restriction on the automotive parts. The automotive parts can be transported to the drying chamber under the action of the automotive parts conveying structure 4.

[0038] After the automotive parts are separated from the mobile spraying structure, the hydraulic telescopic rod 29 retracts, causing the connected lifting block 28 to move downwards until the power plug 25 separates from the power socket 42, the paint delivery pipe 24 separates from the paint channel 41, and the paint mist delivery pipe separates from the connecting pipe 40. The reset structure can then reset the mobile spraying structure. Under the action of the hydraulic telescopic rods 26 and 3, the lifting block 28 can move to below the reset fixed block 11. The hydraulic telescopic rod 29 extends, causing the connected lifting block 28 to move upwards until the power plug 25 is inserted into the power socket 42, the paint delivery pipe 24 engages with the paint channel 41, and the paint mist delivery pipe engages with the connecting pipe 40. The mobile spraying structure can then continue to operate.

[0039] All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional means such as bolts that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fully automatic painting production line for automotive parts, comprising a spraying chamber (1), a pre-treatment chamber (2), a drying chamber (3) and a conveying structure (4) for the automotive parts, characterized in that: The feeding end of the spraying chamber (1) is provided with a pretreatment chamber (2), the discharging end of the spraying chamber (1) is provided with a drying chamber (3), the spraying chamber (1) comprises a base (9) and a chamber body (10), the inner cavity of the chamber body (10) is fixedly connected with a partition plate (18), the inner cavity of the chamber body (10) is divided into a spraying cavity and a reset cavity by the partition plate (18), both ends of the partition plate (18) are provided with through holes (17), the spraying cavity and the reset cavity are communicated through the through holes (17), and the reset structure is arranged in the reset cavity. The inner cavities of the spraying cavity, the pretreatment chamber (2) and the drying chamber (3) are in a communicated state, forming an automobile part spraying processing area, and the automobile part conveying structure (4) is arranged above the automobile part spraying processing area; the inner cavity of the spraying cavity is provided with at least two movable spraying structures, and the bottom end, away from the partition plate (18), of the spraying cavity is movably connected with a conveying belt (13); the movable spraying structure comprises a fixed block (11), both ends of the fixed block (11) are provided with automatic winding assemblies, both sides of the fixed block (11) are movably connected with mist suction plates (16) through movable structures, the mist suction plates (16) are connected with shielding pieces (12) of the automatic winding assemblies, the bottom end of the mist suction plate (16) is provided with an electromagnet (37), when the electromagnet (37) is in an energized state, the electromagnet (37) is magnetically attracted to the conveying belt (13), and a spraying head (43) is arranged at the middle of the side, close to the conveying belt (13), of the fixed block (11).

2. The full-automatic coating production line for automobile parts according to claim 1, characterized in that: The automatic winding assembly comprises a shell (46) connected with the fixed block (11), the middle of the inner cavity of the shell (46) is movably connected with a rotating rod (33), the outer ring of the rotating rod (33) is fixedly connected with a disc spring (34), the other end of the disc spring (34) is fixedly connected with one end of the shielding piece (12), the shielding piece (12) is wound on the outer surface of the disc spring (34), the other end of the shielding piece (12) penetrates through the shell (46) and is fixedly connected with the mist suction plate (16), and the shielding piece (12) is movably connected with the shell (46).

3. The full-automatic coating production line for automobile parts according to claim 1, characterized in that: The top of the movable spraying structure is at the same height as the bottom of the automobile part conveying structure (4), the bottom of the fixed block (11) is fixedly connected with a sealing plate (36), and the bottom end of the shielding piece (12) is movably connected with the inner cavity of the sealing plate (36).

4. The full-automatic coating production line for automobile parts according to claim 1, characterized in that: The movable structure one comprises a ball screw one (39) movably connected with the bottom end of the fixed block (11), a ball nut one (38) threadedly connected with the outer ring of the ball screw one (39), and a servo motor one (35) fixedly connected with the fixed block (11), the output shaft of the servo motor one (35) is fixedly connected with one end of the ball screw one (39) away from the conveying belt (13), and the mist suction plate (16) is fixedly connected with the ball nut one (38).

5. The full-automatic coating production line for automobile parts according to claim 1, characterized in that: The reset structure includes ball screw two (22) and servo motor two (19) which are movably connected with the side of the reset cavity away from the partition plate (18), the ball screw two (22) is driven by the servo motor two (19), the outer ring of the ball screw two (22) is threadedly connected with ball nut two (20), the side of the ball nut two (20) close to the partition plate (18) is connected with the transfer plate (31) through the hydraulic telescopic rod one (21), the transfer plate (31) is inlaid with electromagnet two (32), when the electromagnet two (32) is in the energized state, the electromagnet two (32) and the fixed block (11) are magnetically attracted.

6. The full-automatic coating production line for automobile parts according to claim 1, characterized in that: The base (9) is a hollow structure, the top of the inner cavity of the base (9) is provided with a connecting groove (30), the inner cavity of the base (9) and the spraying cavity are communicated through the connecting groove (30), the base (9) is provided with a connecting structure matched with the moving spraying structure, the connecting structure includes the hydraulic telescopic rod two (26) connected with the base (9), the hydraulic telescopic rod three (27) connected with the output shaft end of the hydraulic telescopic rod two (26), the hydraulic telescopic rod four (29) connected with the output shaft end of the hydraulic telescopic rod three (27) and the lifting block (28) connected with the output shaft end of the hydraulic telescopic rod four (29), the lifting block (28) is matched with the connecting groove (30), the lifting block (28) is provided with the power plug (25), the paint conveying pipe (24) and the paint mist conveying pipe (23), the bottom of the fixed block (11) is provided with the power supply socket (42) matched with the power plug (25), the paint hole (41) matched with the paint conveying pipe (24) and the connecting pipe (40) matched with the paint mist conveying pipe (23), the other end of the connecting pipe (40) is connected with the inner cavity of the mist suction plate (16), the other end of the paint hole (41) is connected with the spraying head (43).

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