A paint spraying device for processing automobile panels
The automotive panel painting device, which incorporates multi-nozzle spraying, mobile drying, and a support and recovery structure, solves the problems of uneven spraying, uneven drying, and low paint mist recovery efficiency in traditional methods, achieving efficient and safe painting processes.
Patent Information
- Application Number
- CN202522187324.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-16
AI Technical Summary
Traditional automotive panel painting processes suffer from problems such as uneven coating, significant paint waste, highly open working environment, uneven drying after painting, and low efficiency in paint mist recovery, which affect the health of operators and the environment.
A painting device for automotive sheet metal processing was designed, which adopts a multi-nozzle spraying, a moving drying structure and a support and recovery structure to achieve multi-angle spraying, uniform drying and paint mist recovery. The observation frame and magnetic blocks are combined to improve operational safety.
It significantly improves the uniformity of spray coating and work efficiency, reduces environmental pollution, protects the health of operators, and improves the quality and consistency of paint curing.
Smart Images

Figure CN224926341U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive panel processing technology, specifically to a painting device for automotive panel processing. Background Technology
[0002] Automotive body panels often require surface painting during processing to improve their appearance and corrosion resistance.
[0003] Traditional spray painting processes often employ fixed spray guns or manual spraying, resulting in uneven coating, significant paint waste, and a highly open working environment that easily leads to the escape of harmful gases. Furthermore, the drying process after spraying usually requires transfer to separate equipment, which not only prolongs the production cycle but also easily causes paint contamination or damage during the transfer. Although there are existing devices that integrate spraying and drying functions, their drying structures are mostly fixed, making it difficult to achieve uniform heating, and the paint mist recovery efficiency is low, placing a significant burden on the health of operators and the environment. Therefore, new technical solutions are needed to address these issues. Utility Model Content
[0004] The purpose of this utility model is to provide a painting device for automotive panel processing to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a painting device for automotive panel processing, comprising a base plate and a processing box, wherein an operating cover is connected to the top of the processing box via a hinge, three paint spray pipes are evenly distributed inside the operating cover, one end of each of the three paint spray pipes extends through one side of the operating cover, and a plurality of spray nozzles are evenly distributed on the lower wall of the three paint spray pipes, a movable drying structure is installed on the rear wall of the processing box, and a support and recycling structure is installed at the bottom of the processing box;
[0006] An operation slot is provided on the front wall of the processing box, an observation frame is installed on the lower front side of the operation cover, a glass plate is embedded inside the observation frame, and an opening and closing handle is installed on the front wall of the operation cover.
[0007] Preferably, the movable drying structure includes a movable hole, which is opened at the upper end of the rear wall of the processing box. A drying tube is movably embedded in the movable hole. A drying nozzle is installed on the lower side of one end of the drying tube, and an air inlet connector is connected to the other end of the drying tube. A movable block is fixedly fitted on the outer side of the other end of the drying tube. A lead screw is movably inserted through the center of the movable block. Two bearing plates are installed at the connection points between the two ends of the lead screw and the two sides of the rear wall of the processing box. A drive motor is connected to one end of the lead screw and is fixedly installed on the side wall of the processing box. Two fixing plates are installed at the lower ends of the two bearing plates, and a guide rod is installed between the two fixing plates. The guide rod movably inserts through the lower end of the movable block.
[0008] Preferably, the support and recovery structure includes four support rods, which are respectively installed at the four corners of the lower end of the processing box. An installation frame is installed at the top of the four support rods. The upper end of the installation frame has several installation holes, in which four placement rods are movably embedded. Two recovery pipes are installed at the lower end of the side wall of the processing box. An air extraction connection pipe is connected to the outside of the two recovery pipes, and an air pipe connector is installed at one end of the air extraction connection pipe.
[0009] Preferably, the position where the moving block connects to the lead screw is machined with an internal thread.
[0010] Preferably, one end of each of the three paint spray tubes is connected to a paint spray connector.
[0011] Preferably, a flipping limit block is installed at the center of the upper end of the rear wall of the processing box.
[0012] Preferably, a flip magnetic block is installed at the center of the rear wall of the operating cover.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention enables simultaneous multi-angle spraying by uniformly arranging three paint spray pipes and multiple spray nozzles within the operating cover on the top of the processing box. This significantly improves the uniformity of the spraying coverage and the efficiency of the operation, avoiding the problem of uneven paint film thickness caused by traditional single-point spraying.
[0015] The system employs a mobile drying structure, in which the drying tube is driven by a screw to move horizontally along a guide rod. This allows the drying nozzles to heat the surface of the workpiece evenly, preventing localized overheating or insufficient drying and effectively improving the quality and consistency of paint curing.
[0016] The support and recovery structure collects paint mist and volatile gases that spill out during the spraying process in a timely manner through the exhaust connection pipe and recovery pipe, and treats them centrally through external treatment equipment, which significantly reduces pollution to the working environment and protects the health of operators.
[0017] The operating cover is connected by a hinge and can be flipped open. Combined with the observation frame and glass plate on the front wall, it facilitates real-time monitoring of the spraying process. The design of the flip limit block and magnetic block ensures the stable fixation of the cover after it is opened, further improving operational safety. Attached Figure Description
[0018] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;
[0019] Figure 2 This is a rear-view three-dimensional structural schematic diagram provided for this utility model;
[0020] Figure 3 This is a side sectional view of the structure provided by this utility model;
[0021] Figure 4 Provided by this utility model Figure 3 A magnified structural diagram of point A in the middle.
[0022] In the diagram: 1. Base plate; 2. Processing box; 3. Operating cover; 4. Spray pipe; 5. Spray nozzle; 6. Operating slot; 7. Observation frame; 8. Glass plate; 9. Opening and closing handle; 10. Moving hole; 11. Drying pipe; 12. Drying nozzle; 13. Air inlet connector; 14. Moving block; 15. Lead screw; 16. Bearing plate; 17. Drive motor; 18. Fixing plate; 19. Guide rod; 20. Support rod; 21. Mounting frame; 22. Mounting hole; 23. Placement rod; 24. Recovery pipe; 25. Air extraction connection pipe; 26. Air pipe connector; 27. Spray pipe connector; 28. Flip limit block; 29. Flip magnetic block. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-4 As shown, a painting device for automotive panel processing includes a base plate 1 and a processing box 2. The top of the processing box 2 is connected to an operating cover 3 via a hinge. Three paint spray pipes 4 are evenly distributed inside the operating cover 3. One end of each paint spray pipe 4 passes through one side of the operating cover 3. Several nozzles 5 are evenly distributed on the lower wall of the three paint spray pipes 4. A movable drying structure is installed on the rear wall of the processing box 2. A support and recycling structure is installed at the bottom of the processing box 2.
[0025] An operation slot 6 is provided on the front wall of the processing box 2, an observation frame 7 is installed on the lower front side of the operation cover 3, a glass plate 8 is embedded inside the observation frame 7, and an opening and closing handle 9 is installed on the front wall of the operation cover 3.
[0026] In this technical solution, when painting automotive panels, the worker first treats the surface of the panel to be painted. Then, the worker lifts the opening handle 9, causing the operating cover 3 to open at the top of the processing box 2 under the connection of two hinges. The worker then adjusts the support and recovery structure according to the specifications of the automotive panel to meet the painting requirements of different sized panels. The pre-treated automotive panel is then placed on the upper part of the support and recovery structure. After placement, the operating cover 3 is closed, and the observation frame 7 is embedded in the operating slot 6. The glass plate 8 allows observation of the painting process while simultaneously sealing the operating slot 6 to prevent paint from splashing out. If a leak occurs, the three paint spray pipes 4 are then connected to a paint delivery device. The designated paint is delivered to the three paint spray pipes 4, and then the paint is atomized and sprayed out through several nozzles 5 at the lower end of the three paint spray pipes 4, so that the paint adheres to the surface of the car body panel, completing the painting process. During the painting process, the air extraction capacity of the supporting recovery structure can recover the floating paint inside the treatment box 2, avoiding paint leakage and environmental impact. After the painting is completed, the set mobile drying structure works to evenly deliver high-temperature gas to the surface of the car body panel to dry the paint on the surface until it is completely dry. Then, the operator opens the operating cover 3 and takes out the painted and dried car body panel.
[0027] In some technical solutions, reference Figure 2 The movable drying structure includes a movable hole 10, which is located on the upper part of the rear wall of the processing chamber 2. A drying tube 11 is movably embedded in the movable hole 10. A drying nozzle 12 is installed on the lower side of one end of the drying tube 11. An air inlet connector 13 is connected to the other end of the drying tube 11. A movable block 14 is fixedly fitted on the outer side of the other end of the drying tube 11. A lead screw 15 is movably inserted through the center of the movable block 14. Two bearing plates 16 are installed at the connection points between the two ends of the lead screw 15 and the two sides of the rear wall of the processing chamber 2. A drive motor 17 is connected to one end of the lead screw 15. The drive motor 17 is fixedly installed on the side wall of the processing chamber 2. Two fixing plates 18 are installed at the lower ends of the two bearing plates 16. A guide rod 19 is installed between the two fixing plates 18. The guide rod 19 movably inserts through the lower end of the movable block 14.
[0028] In this technical solution, when drying the painted automotive panels, the air inlet 13 at one end of the drying pipe 11 is first connected to a high-temperature gas conveying device. The high-temperature gas is then conveyed into the drying pipe 11 through the high-temperature gas conveying device, and finally conveyed to the upper surface of the automotive panel through the drying nozzle 12. Subsequently, the drive motor 17 is connected to the power supply control system, and the drive motor 17 is operated by the motor controller to rotate at a constant speed. While the drive motor 17 is rotating, the lead screw 15 rotates at a constant speed within the two bearing plates 16. Under the meshing action of the internal thread inside the moving block 14 and the lead screw 15, the moving block 14 moves at a constant speed above the lead screw 15 and the guide rod 19, changing the position of the drying pipe 11 within the moving hole 10. The moving drying pipe 11 performs uniform drying treatment on the surface of the automotive panel. The guide rod 19 between the two fixed plates 18 ensures the overall movement stability of the moving block 14, thereby ensuring the overall drying effect of the automotive panel.
[0029] In some technical solutions, reference Figure 3 The support and recovery structure includes four support rods 20, which are respectively installed at the four corners of the lower end of the processing box 2. The top of the four support rods 20 is equipped with an installation frame 21. The upper end of the installation frame 21 has several installation holes 22, in which four placement rods 23 are movably embedded. Two recovery pipes 24 are installed at the lower end of the side wall of the processing box 2. The outside of the two recovery pipes 24 is connected to an air extraction connection pipe 25. One end of the air extraction connection pipe 25 is equipped with an air pipe connector 26.
[0030] In this technical solution, when painting automotive panels, workers first embed four placement plates into designated mounting holes 22 according to the specifications of the automotive panels to meet the placement requirements of automotive panels of different sizes. Then, workers place the automotive panels on the top of the four placement rods 23. Subsequently, the air extraction connection pipe 25 is connected to the negative pressure paint recovery equipment through the air pipe connector 26. Through the cooperation of the air extraction connection pipe 25 and the two recovery pipes 24, the paint floating in the treatment box 2 can be recovered and treated to avoid the paint from affecting the surrounding environment. In addition, the four support rods 20 set up separate the mounting frame 21 from the lower inner end of the treatment box 2, preserving space for paint recovery.
[0031] In some technical solutions, reference Figure 2 The moving block 14 and the lead screw 15 are connected by internal threads.
[0032] In this technical solution, the internal thread is designed to cooperate with the lead screw 15, which enables the moving block 14 to move stably at the upper end of the lead screw 15, ensuring the overall stability of the drying tube 11.
[0033] In some technical solutions, reference Figure 2 Three paint spray tubes 4 are connected to three paint spray connectors 27 at one end.
[0034] In this technical solution, the three paint spraying connectors 27 enable the device to be quickly connected to the paint delivery equipment and ensure the overall delivery effect of the paint.
[0035] In some technical solutions, reference Figure 4 A flipping limit block 28 is installed at the center of the upper end of the rear wall of the processing box 2.
[0036] In this technical solution, the angle of the operating cover 3 during opening and closing can be guaranteed by the set flip limit block 28, so as to avoid the operating cover 3 from being opened or closed excessively.
[0037] In some technical solutions, reference Figure 4 A flip magnetic block 29 is installed at the center of the rear wall of the operating cover 3.
[0038] In this technical solution, the flip magnetic block 29 and the flip limiting block 28 are combined to magnetically attract and fix the operating cover 3 in the open and closed state, ensuring convenience when taking out automotive parts.
[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A painting apparatus for automotive sheet metal processing, comprising a base plate (1) and a processing box (2), characterized in that, The top of the processing box (2) is connected to an operating cover (3) via a hinge. Three paint spray pipes (4) are evenly distributed inside the operating cover (3). One end of each of the three paint spray pipes (4) passes through one side of the operating cover (3). Several nozzles (5) are evenly distributed on the lower wall of the three paint spray pipes (4). A movable drying structure is installed on the rear wall of the processing box (2). A support and recycling structure is installed at the bottom of the processing box (2). The processing box (2) has an operation slot (6) on the front wall, and an observation frame (7) is installed on the front side of the lower end of the operation cover (3). A glass plate (8) is embedded inside the observation frame (7), and an opening and closing handle (9) is installed on the front wall of the operation cover (3).
2. The painting apparatus for automotive sheet metal processing according to claim 1, characterized in that, The movable drying structure includes a movable hole (10), which is located on the upper part of the rear wall of the processing box (2). A drying tube (11) is movably embedded in the movable hole (10). A drying nozzle (12) is installed on the lower side of one end of the drying tube (11). An air inlet connector (13) is connected to the other end of the drying tube (11). A movable block (14) is fixedly fitted on the outer side of the other end of the drying tube (11). A lead screw (15) is movably inserted through the center of the movable block (14). Two bearing plates (16) are installed at the connection points between the two ends of the lead screw (15) and the two sides of the rear wall of the processing box (2). One end of the lead screw (15) is connected to a drive motor (17). The drive motor (17) is fixedly installed on the side wall of the processing box (2). Two fixing plates (18) are installed at the lower ends of the two bearing plates (16). A guide rod (19) is installed between the two fixing plates (18). The guide rod (19) moves through the lower end of the moving block (14).
3. The painting apparatus for automotive sheet metal processing according to claim 1, characterized in that, The supporting recycling structure includes four support rods (20), which are respectively installed at the four corners of the lower end of the processing box (2). The top of the four support rods (20) is equipped with an installation frame (21). The upper end of the installation frame (21) is provided with several installation holes (22). Four placement rods (23) are movably embedded in the four installation holes (22). Two recycling pipes (24) are installed at the lower end of the side wall of the processing box (2). The outside of the two recycling pipes (24) is connected to a suction connection pipe (25). One end of the suction connection pipe (25) is equipped with an air pipe connector (26).
4. The painting apparatus for automotive sheet metal processing according to claim 2, characterized in that, The moving block (14) is connected to the lead screw (15) with an internal thread.
5. The painting apparatus for automotive sheet metal processing according to claim 1, characterized in that, The three paint spray tubes (4) are connected to three paint spray connectors (27) at one end.
6. The painting apparatus for automotive sheet metal processing according to claim 1, characterized in that, A flip-limiting block (28) is installed at the center of the upper end of the rear wall of the processing box (2).
7. The painting apparatus for automotive sheet metal processing according to claim 1, characterized in that, A flip magnetic block (29) is installed at the center of the rear wall of the operating cover (3).
