Spraying equipment for automobile parts
By using a motor to drive the bracket to rotate and a rangefinder to adjust the distance of the spray head, combined with a moving mechanism and an air extraction system, the problem of uneven coating on complex parts in traditional spraying equipment has been solved, achieving efficient and uniform spraying results and an environmentally friendly working environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-03-13
AI Technical Summary
Traditional spraying equipment lacks the function of real-time adjustment of spraying distance, resulting in uneven coating thickness, missed spraying or paint accumulation when spraying on different curved or uneven parts. It is especially difficult to ensure the consistency and quality stability of the coating on parts with complex shapes or large volumes.
The device uses a motor-driven bracket rotation, combined with a rangefinder and controller to automatically adjust the distance between the spray head and the surface of the parts. The spraying distance is automatically adjusted and the spraying mechanism moves up and down through an electric telescopic rod and a moving mechanism. It is equipped with an air extraction frame and an air extraction pump to handle harmful gases. A gear transmission system ensures that the spraying mechanism moves slowly, and the rotating bracket achieves full coverage.
It improves coating uniformity and coverage, reduces manual intervention, increases spraying efficiency and consistency, improves the working environment, and shortens the production cycle.
Smart Images

Figure CN121649072A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive parts coating technology, specifically to automotive parts coating equipment. Background Technology
[0002] During the manufacturing process of automotive parts, surface coating is often required to achieve purposes such as corrosion resistance, wear resistance, and aesthetics. Traditional coating methods rely heavily on manual operation or simple mechanical assistance, resulting in problems such as uneven coating thickness, incomplete coverage, and low efficiency. Especially when dealing with parts with complex shapes or large volumes, manual coating makes it difficult to guarantee the consistency and quality stability of the coating.
[0003] Existing technologies include some automated spraying equipment, such as those using fixed nozzles in conjunction with rotating worktables, which can improve spraying efficiency to some extent. However, these devices typically lack real-time adjustment of the spraying distance, leading to uneven coating thickness, missed areas, or paint buildup when spraying on different curved or uneven surfaces.
[0004] To address the aforementioned problems, an improved automotive parts painting equipment is now designed. Summary of the Invention
[0005] The purpose of this invention is to provide an automotive parts painting equipment to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: An automotive parts painting device includes a base plate, with side plates vertically fixedly connected to both sides of the upper end of the base plate. A second housing is horizontally fixedly connected to the upper end of the side plates. A motor is vertically fixedly connected to the center of the top of the second housing. A third rotating rod is fixedly connected to the output end of the motor. The end of the third rotating rod away from the motor passes through the center of the bottom of the second housing and is fixedly connected to an automotive parts hanger for suspending automotive parts. The third rotating rod is rotatably connected to the bottom of the second housing. A first housing is vertically fixedly connected to the lower end of the second housing near the two side plates. The lower end of the first housing is fixedly connected to the upper end of the base plate. A mounting plate is vertically arranged on the side of the first housing near the center of the base plate. The two mounting plates are on the same horizontal plane. A painting mechanism and an exhaust mechanism are respectively arranged on the ends of the two mounting plates away from the first housing. A moving mechanism for driving the mounting plates to move is provided inside the first housing.
[0007] As a further aspect of the present invention: the spraying mechanism includes an electric telescopic rod, which is horizontally fixedly connected to one end of a mounting plate away from the first housing. A protective frame is fixedly connected to the output end of the electric telescopic rod. A rangefinder for measuring the distance between the protective frame and automotive parts is fixedly connected to the center of the protective frame. A controller for receiving measurement data from the rangefinder and controlling the electric telescopic rod is fixedly connected to the upper end of the second housing. A collecting pipe is fixedly connected to the side wall of the protective frame away from the electric telescopic rod. Several spray heads are fixedly connected in a circular array at the end of the collecting pipe away from the electric telescopic rod. A paint delivery pipe is fixedly connected to the side wall of the collecting pipe. The end of the paint delivery pipe away from the collecting pipe passes through the side wall of the side plate and connects to a paint delivery device. An air supply pipe is fixedly connected to the side wall of the protective frame. An air pump is fixedly connected to the end of the air supply pipe away from the protective frame, passing through the side wall of the side plate. The air pump is fixedly connected to the side wall of the side plate. The lengths of both the paint delivery pipe and the air supply pipe are redundant to facilitate their movement with the protective frame.
[0008] As a further embodiment of the present invention: the exhaust mechanism includes an air extraction frame, which is fixedly connected to the side wall of the mounting plate opposite the output end of the electric telescopic rod. An air extraction pipe is fixedly connected to the side wall of the air extraction frame. An air extraction pump is fixedly connected to the end of the air extraction pipe away from the air extraction frame through the side wall of the side plate. The air extraction pump is fixedly connected to the side wall of the side plate. The length of the air extraction pipe is redundant to facilitate the movement of the air extraction pipe with the air extraction frame.
[0009] As a further embodiment of the present invention: the moving mechanism includes a first rotating rod corresponding to a first housing. A vertical groove is formed on the side wall of the first housing away from the automotive parts bracket. The first rotating rod is vertically disposed inside the first housing. The lower end of the first rotating rod is rotatably connected to the upper end of the base plate. The upper end of the first rotating rod passes through the bottom of the second housing and is rotatably connected to the top of the second housing. A threaded rod is fixedly connected to the side wall of the first rotating rod inside the first housing. A moving block is rotatably connected to the side wall of the threaded rod via a thread. A slider is fixedly connected to the side wall of the moving block near the groove. A fixing plate is fixedly connected to the end of the slider away from the moving block through the groove. Connecting plates are fixedly connected to both ends of the fixing plate. The ends of the two connecting plates away from the fixing plate are fixedly connected to both ends of the mounting plate. A driving assembly for driving the first rotating rod to rotate is disposed inside the second housing.
[0010] As a further embodiment of the present invention: the drive assembly includes a third gear, which is fixedly connected to the side wall of the third rotating rod inside the second housing. A first gear is fixedly connected to the side wall of the first rotating rod inside the second housing. A second gear is disposed between the first gear and the third gear. A second rotating rod is rotatably connected to the center position of the second gear. The upper end and lower end of the second rotating rod are respectively fixedly connected to the top and bottom of the second housing. The second gear meshes with the third gear and with the first gear. The diameter of the first gear is larger than the diameter of the third gear, which slows down the movement speed of the spray head on the protective frame, thereby enabling the spray head to uniformly spray the automotive parts on the automotive parts rack without any omissions.
[0011] As a further embodiment of the present invention: the side wall of the moving block is rotatably connected with ball bearings to facilitate the movement of the moving block along the inner wall of the first box.
[0012] As a further aspect of the present invention: the bottom of the base plate is provided with a liquid collection tank for collecting excess paint dripping during the spraying process. The liquid collection tank is designed to be pull-out for easy cleaning and maintenance.
[0013] As a further aspect of the present invention: a heating and insulation sleeve is installed on the paint delivery pipe to keep the paint warm when the ambient temperature is low, so as to prevent the paint viscosity from being too high and affecting the spraying effect.
[0014] As a further aspect of the present invention: a lubrication port is provided at the threaded connection between the moving block and the threaded rod, and a corresponding maintenance window is provided on the outer wall of the first housing to facilitate the regular addition of lubricating oil and ensure the smooth and stable long-term operation of the moving mechanism.
[0015] As a further aspect of the present invention: the rangefinder is a laser rangefinder or an ultrasonic sensor, which communicates with the controller wirelessly or via wired means. The controller has a built-in PID control algorithm for real-time and precise adjustment of the extension and retraction of the electric telescopic pole.
[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a motor to drive the bracket to rotate, and combines a rangefinder and controller to automatically adjust the distance between the spray head and the surface of the parts, ensuring a constant distance during the spraying process and effectively improving the uniformity and coverage of the coating.
[0017] This invention employs an electric telescopic rod, a moving mechanism, and a controller working in tandem to achieve automatic adjustment of the spraying distance and vertical movement of the spraying mechanism, reducing manual intervention and improving spraying efficiency and consistency.
[0018] This invention incorporates an extraction frame and an extraction pump, which can remove harmful gases and excess spray in real time during the spraying process, improving the working environment, protecting the health of operators, and meeting environmental protection requirements.
[0019] This invention uses a gear transmission system to achieve slow up-and-down movement of the spraying mechanism, combined with a rotating bracket, to ensure that all surfaces of the parts can be fully sprayed, avoiding dead corners and missed areas.
[0020] After the coating is completed, the present invention can use an air pump to blow air into the protective frame to accelerate the drying of the paint film, shorten the production cycle, and improve the overall efficiency of the equipment. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of the present invention.
[0022] Figure 2 This is a schematic diagram of the driving component in this invention.
[0023] Figure 3 This is a schematic diagram of the moving mechanism in this invention.
[0024] Figure 4 This is a schematic diagram of the spraying mechanism in this invention.
[0025] The components are as follows: 1. Base plate; 2. Side plate; 3. First housing; 4. Extraction pipe; 5. Mounting plate; 6. Connecting plate; 7. Fixing plate; 8. First rotating rod; 9. Second housing; 10. First gear; 11. Extraction frame; 12. Second rotating rod; 13. Second gear; 14. Motor; 15. Third gear; 16. Third rotating rod; 17. Automotive parts bracket; 18. Controller; 19. Protective frame; 20. Electric telescopic rod; 21. Paint delivery pipe; 22. Air supply pipe; 23. Air pump; 24. Slide; 25. Extraction pump; 26. Threaded rod; 27. Moving block; 28. Sliding block; 29. Spray head; 30. Rangefinder; 31. Collection pipe. Detailed Implementation
[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0027] Please see Figures 1-4In this embodiment of the invention, an automotive parts spraying device includes a base plate 1. Side plates 2 are vertically fixedly connected to both sides of the upper end of the base plate 1. A second housing 9 is horizontally fixedly connected to the upper end of each side plate 2. A motor 14 is vertically fixedly connected to the center of the top of the second housing 9. A third rotating rod 16 is fixedly connected to the output end of the motor 14. An automotive parts hanger 17 for suspending automotive parts is fixedly connected to the center of the bottom of the second housing 9 at one end of the third rotating rod 16 away from the motor 14. The third rotating rod 16 is rotatably connected to the bottom of the second housing 9. A first housing 3 is vertically fixedly connected to the lower end of the second housing 9 near the two side plates 2. The lower end of the first housing 3 is fixedly connected to the upper end of the base plate 1. Mounting plates 5 are vertically arranged on the side of the first housing 3 near the center of the base plate 1. The two mounting plates 5 are on the same horizontal plane. A spraying mechanism and an exhaust mechanism are respectively provided at the ends of the two mounting plates 5 away from the first housing 3. A moving mechanism for driving the mounting plates 5 is provided inside the first housing 3.
[0028] The spraying mechanism includes an electric telescopic rod 20, which is horizontally fixedly connected to one end of a mounting plate 5 away from the first housing 3. A protective frame 19 is fixedly connected to the output end of the electric telescopic rod 20. A rangefinder 30 for measuring the distance between the protective frame 19 and automotive parts is fixedly connected to the center of the protective frame 19. A controller 18 for receiving measurement data from the rangefinder 30 and controlling the electric telescopic rod 20 is fixedly connected to the upper end of the second housing 9. A manifold 31 is fixedly connected to the side wall of the protective frame 19 away from the electric telescopic rod 20. The manifold 31 is located away from the electric... One end of the telescopic rod 20 is fixedly connected to several spray heads 29 in a circular array. A paint delivery pipe 21 is fixedly connected to the side wall of the collecting pipe 31. The end of the paint delivery pipe 21 away from the collecting pipe 31 passes through the side wall of the side plate 2 and is connected to the paint delivery equipment. An air supply pipe 22 is fixedly connected to the side wall of the protective frame 19. An air supply pump 23 is fixedly connected to the end of the air supply pipe 22 away from the protective frame 19, passes through the side wall of the side plate 2. The air supply pump 23 is fixedly connected to the side wall of the side plate 2. The lengths of the paint delivery pipe 21 and the air supply pipe 22 are redundant to facilitate the movement of the paint delivery pipe 21 and the air supply pipe 22 with the protective frame 19.
[0029] During use, the electric telescopic rod 20 pushes the protective frame 19 to move towards the component. The rangefinder 30 installed inside the protective frame detects the distance between the spray head 29 and the surface of the component in real time and transmits the data to the controller 18. The controller automatically adjusts the extension and retraction of the electric telescopic rod according to the feedback signal to ensure that the spray head and the surface of the component always maintain a constant distance and ensure uniform spraying.
[0030] The exhaust mechanism includes an air extraction frame 11, which is fixedly connected to the side wall of the mounting plate 5 opposite the output end of the electric telescopic rod 20. An air extraction pipe 4 is fixedly connected to the side wall of the air extraction frame 11. An air extraction pump 25 is fixedly connected to the end of the air extraction pipe 4 away from the air extraction frame 11 through the side wall of the side plate 2. The air extraction pump 25 is fixedly connected to the side wall of the side plate 2. The length of the air extraction pipe 4 is redundant to facilitate the movement of the air extraction pipe 4 with the air extraction frame 11.
[0031] During use, the paint is delivered to the collection pipe 31 via the paint delivery pipe 21 and evenly distributed to multiple spray heads 29 for spraying. At the same time, the air extraction frame 11 located opposite the spraying area is connected to the air extraction pump 25 via the air extraction pipe 4 to remove harmful gases and excess spray generated during the spraying process in a timely manner, maintaining a clean working environment.
[0032] The moving mechanism includes a first rotating rod 8 corresponding to the first housing 3. A vertical groove 24 is provided on the side wall of the first housing 3 away from the car parts bracket 17. The first rotating rod 8 is vertically arranged inside the first housing 3. The lower end of the first rotating rod 8 is rotatably connected to the upper end of the base plate 1. The upper end of the first rotating rod 8 passes through the bottom of the second housing 9 and is rotatably connected to the top of the second housing 9. A threaded rod 26 is fixedly connected to the side wall of the first rotating rod 8 inside the first housing 3. A moving block 27 is rotatably connected to the side wall of the threaded rod 26 by a thread. A slider 28 is fixedly connected to the side wall of the moving block 27 near the groove 24. A fixing plate 7 is fixedly connected to the end of the slider 28 away from the moving block 27 through the groove 24. Connecting plates 6 are fixedly connected to both ends of the fixing plate 7. The ends of the two connecting plates 6 away from the fixing plate 7 are fixedly connected to both ends of the mounting plate 5. A driving assembly for driving the first rotating rod 8 to rotate is provided inside the second housing 9.
[0033] The drive assembly includes a third gear 15, which is fixedly connected to the side wall of the third rotating rod 16 inside the second housing 9. A first gear 10 is fixedly connected to the side wall of the first rotating rod 8 inside the second housing 9. A second gear 13 is disposed between the first gear 10 and the third gear 15. A second rotating rod 12 is rotatably connected to the center of the second gear 13. The upper and lower ends of the second rotating rod 12 are fixedly connected to the top and bottom of the second housing 9, respectively. The second gear 13 meshes with the third gear 15 and with the first gear 10. The diameter of the first gear 10 is larger than the diameter of the third gear 15, which slows down the movement speed of the spray head 29 on the protective frame 19, thereby enabling the spray head 29 to uniformly spray the automotive parts on the automotive parts bracket 17 without any omissions.
[0034] When the third rotating rod 16 rotates, it drives the first rotating rod 8 to rotate through the gear set (first gear 10, second gear 13, third gear 15), which in turn drives the threaded rod 26 to rotate, causing the moving block 27 to move up and down along the slide groove 24. The moving block drives the mounting plate 5 and the spraying mechanism on it to move up and down synchronously through the slider 28, the fixed plate 7, and the connecting plate 6, so as to achieve uniform spraying of the overall height of the parts.
[0035] Since the diameter of the first gear 10 is larger than that of the third gear 15, a speed reduction is generated during the transmission process, which makes the spraying mechanism move slowly and ensures that there are no omissions in the spraying.
[0036] Working principle of an automotive parts painting equipment: Component suspension and rotation The automotive parts to be painted are suspended on the automotive parts bracket 17. The motor 14 is started, which drives the third rotating rod 16 and the bracket to rotate at a constant speed, ensuring that all surfaces of the parts can be covered by the paint.
[0037] Automatic spraying distance adjustment The electric telescopic rod 20 pushes the protective frame 19 to move towards the component. The rangefinder 30 installed inside the protective frame detects the distance between the spray head 29 and the surface of the component in real time and transmits the data to the controller 18. The controller automatically adjusts the extension and retraction of the electric telescopic rod according to the feedback signal to ensure that the spray head and the surface of the component always maintain a constant distance and ensure uniform spraying.
[0038] Spraying operations and exhaust gas treatment The paint is transported to the collection pipe 31 via the paint delivery pipe 21 and evenly distributed to multiple spray heads 29 for spraying. At the same time, the air extraction frame 11 located opposite the spraying area is connected to the air extraction pump 25 via the air extraction pipe 4 to remove harmful gases and excess spray generated during the spraying process in a timely manner, maintaining a clean working environment.
[0039] The spraying mechanism moves up and down. When the third rotating rod 16 rotates, it drives the first rotating rod 8 to rotate through the gear set (first gear 10, second gear 13, third gear 15), which in turn drives the threaded rod 26 to rotate, causing the moving block 27 to move up and down along the slide groove 24. The moving block drives the mounting plate 5 and the spraying mechanism on it to move up and down synchronously through the slider 28, the fixed plate 7, and the connecting plate 6, so as to achieve uniform spraying of the overall height of the parts.
[0040] Since the diameter of the first gear 10 is larger than that of the third gear 15, a speed reduction is generated during the transmission process, which makes the spraying mechanism move slowly and ensures that there are no omissions in the spraying.
[0041] Post-spray drying aid After the spraying is completed, the air pump 23 is started, and air is blown into the protective frame 19 through the air pipe 22 to accelerate the drying process of the paint film on the surface of the parts.
[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.
Claims
1. An automotive parts painting device, comprising a base plate (1), wherein side plates (2) are vertically fixedly connected to both sides of the upper end of the base plate (1), a second housing (9) is horizontally fixedly connected to the upper end of the side plates (2), a motor (14) is vertically fixedly connected to the center of the top of the second housing (9), a third rotating rod (16) is fixedly connected to the output end of the motor (14), and an automotive parts hanger (17) for suspending automotive parts is fixedly connected to the center of the bottom of the second housing (9) at one end of the third rotating rod (16) away from the motor (14), and the third rotating rod (16) is rotatably connected to the bottom of the second housing (9), characterized in that, The second box (9) is vertically fixed to the side of the two side plates (2) on the lower end. The lower end of the first box (3) is fixedly connected to the upper end of the bottom plate (1). The first box (3) is vertically provided with mounting plates (5) on the side of the first box (3) near the center of the bottom plate (1). The two mounting plates (5) are on the same horizontal plane. The two mounting plates (5) are respectively provided with a spraying mechanism and an exhaust mechanism at the ends away from the first box (3). The first box (3) is provided with a moving mechanism for driving the mounting plates (5) to move.
2. The automotive parts painting equipment according to claim 1, characterized in that, The spraying mechanism includes an electric telescopic rod (20), which is horizontally fixedly connected to one end of one of the mounting plates (5) away from the first housing (3). A protective frame (19) is fixedly connected to the output end of the electric telescopic rod (20). A rangefinder (30) for measuring the distance between the protective frame (19) and the automotive parts is fixedly connected to the center of the protective frame (19). A controller (18) for receiving the measurement data from the rangefinder (30) and controlling the electric telescopic rod (20) is fixedly connected to the upper end of the second housing (9). A manifold (31) is fixedly connected to the side wall of the protective frame (19) away from the electric telescopic rod (20). The end of the collecting pipe (31) away from the electric telescopic rod (20) is fixedly connected to several spray heads (29) in a circular array. A paint delivery pipe (21) is fixedly connected to the side wall of the collecting pipe (31). The end of the paint delivery pipe (21) away from the collecting pipe (31) passes through the side wall of the side plate (2) and is connected to the paint delivery equipment. An air supply pipe (22) is fixedly connected to the side wall of the protective frame (19). An air supply pump (23) is fixedly connected to the end of the air supply pipe (22) away from the protective frame (19) passes through the side wall of the side plate (2). The air supply pump (23) is fixedly connected to the side wall of the side plate (2). The lengths of the paint delivery pipe (21) and the air supply pipe (22) are redundant.
3. The automotive parts painting equipment according to claim 2, characterized in that, The exhaust mechanism includes an air extraction frame (11), which is fixedly connected to the side wall of the mounting plate (5) opposite the output end of the electric telescopic rod (20). An air extraction pipe (4) is fixedly connected to the side wall of the air extraction frame (11). An air extraction pump (25) is fixedly connected to the end of the air extraction pipe (4) away from the air extraction frame (11) through the side wall of the side plate (2). The air extraction pump (25) is fixedly connected to the side wall of the side plate (2). The length of the air extraction pipe (4) is redundant.
4. The automotive parts painting equipment according to claim 1, characterized in that, The moving mechanism includes a first rotating rod (8) corresponding to the first housing (3). The first housing (3) has a vertically opened groove (24) on the side wall away from the car parts bracket (17). The first rotating rod (8) is vertically arranged inside the first housing (3). The lower end of the first rotating rod (8) is rotatably connected to the upper end of the base plate (1). The upper end of the first rotating rod (8) passes through the bottom of the second housing (9) and is rotatably connected to the top of the second housing (9). A threaded rod (26) is fixedly connected to the side wall of the first rotating rod (8) inside the first housing (3). The side wall of the threaded rod (26) is connected to a movable block (27) by a threaded rotation. A slider (28) is fixedly connected to the side wall of the movable block (27) near the slide groove (24). The end of the slider (28) away from the movable block (27) passes through the slide groove (24) and is fixedly connected to a fixing plate (7). The two ends of the fixing plate (7) are fixedly connected to connecting plates (6). The ends of the two connecting plates (6) away from the fixing plate (7) are fixedly connected to the two ends of the mounting plate (5). The interior of the second housing (9) is provided with a drive assembly for driving the first rotating rod (8) to rotate.
5. The automotive parts painting equipment according to claim 4, characterized in that, The drive assembly includes a third gear (15), which is fixedly connected to the side wall of the third rotating rod (16) inside the second housing (9). A first gear (10) is fixedly connected to the side wall of the first rotating rod (8) inside the second housing (9). A second gear (13) is provided between the first gear (10) and the third gear (15). A second rotating rod (12) is rotatably connected to the center position of the second gear (13). The upper end and lower end of the second rotating rod (12) are fixedly connected to the top and bottom of the second housing (9), respectively. The second gear (13) meshes with the third gear (15) and meshes with the first gear (10). The diameter of the first gear (10) is larger than the diameter of the third gear (15).
6. The automotive parts painting equipment according to claim 4, characterized in that, The side wall of the movable block (27) is rotatably connected with ball bearings to facilitate the movement of the movable block (27) along the inner wall of the first housing (3).
7. The automotive parts painting equipment according to claim 1, characterized in that, The bottom of the base plate (1) is provided with a liquid collection tank, which is a pull-out design.
8. The automotive parts painting equipment according to claim 2, characterized in that, A heating and insulation sleeve is installed on the paint delivery pipe (21).
9. The automotive parts painting equipment according to claim 4, characterized in that, The moving block (27) and the threaded rod (26) are provided with a lubrication port, and the outer wall of the first housing (3) is provided with a corresponding maintenance window.
10. The automotive parts painting equipment according to claim 2, characterized in that, The rangefinder (30) is a laser rangefinder sensor, which communicates with the controller (18) via a wired connection. The controller (18) has a built-in PID control algorithm.