Automobile parts surface coating device

Abstract

The utility model discloses an automobile part surface coating device belongs to the technical field of automobile part processing equipment, and this device includes support seat, spraying box, the placing frame of setting in spraying box, the spraying assembly including spray gun and reciprocating assembly, the reciprocating assembly includes motor, reciprocating screw rod of motor transmission connection and the slider of screwing cooperation in reciprocating screw rod, the slider is fixedly connected with spray gun through connecting arm, to drive spray gun to carry out automatic reciprocating motion, and this device still includes electrostatic assembly of spray gun electric connection, the collecting box of being located below the placing frame and the hot -blast circulating box for solidification. The utility model drives spray gun to realize automatic spraying through reciprocating assembly, and combines electrostatic adsorption, solves the problem of uneven spraying, existing dead angle, coating waste and slow solidification in prior art, has the advantages of high degree of automation, uniform and firm coating, saves raw material and the whole processing efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing equipment technology, and in particular to an automotive parts surface coating device. Background Technology

[0002] In the manufacturing process of automotive parts, surface coating is an indispensable and crucial step. It not only gives the parts a good appearance but also plays an important protective role, such as corrosion prevention and wear resistance, directly affecting the overall quality and service life of the vehicle.

[0003] Currently, there are still some technical shortcomings in the surface coating of automotive parts, especially in the mass production of small and medium-sized parts. For example, some production lines still use manual hand-held spray guns for spraying. This method relies heavily on the skill and experience of the operators, resulting in high labor intensity, low production efficiency, and difficulty in ensuring uniform coating thickness, leading to significant fluctuations in product quality.

[0004] To improve automation, equipment using fixed spray guns for coating has emerged. However, when dealing with parts with slightly complex shapes or large surface areas, fixed spray guns struggle to cover the entire surface, easily creating blind spots or "dead zones" and resulting in incomplete coating coverage. To achieve full coverage, multiple spray guns are often needed to spray from different angles, which leads to structural complexity, increased costs, and still makes it difficult to ensure a uniform transition of the coating at the interface.

[0005] Therefore, this utility model proposes a coating device for automotive parts to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of low automation, uneven spraying coverage, dead corners, unstable coating quality, and low overall processing efficiency in the existing automotive parts surface coating devices, this utility model aims to provide an automotive parts surface coating device with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a coating device for automotive parts, including: a support base and a spray box fixedly connected to the top of the support base; the spray box is provided with a reciprocating component, a spraying component and a placement frame; wherein, the spraying component includes a spray gun with the nozzle of the spray gun pointing downwards; the placement frame is movably disposed in the spray box and located below the spray gun.

[0008] The core structure of this solution is that the reciprocating assembly is fixedly connected inside the spray box. The reciprocating assembly includes a motor, a reciprocating lead screw, and a slider fixed inside the spray box. The axis of the reciprocating lead screw is horizontally arranged, and one end of it is connected to the output end of the motor for transmission. The slider is threaded onto the reciprocating lead screw, and the slider is fixedly connected to the top of the spray gun through a connecting arm. By driving the lead screw to rotate by the motor, the slider and the spray gun fixed to it can be driven to perform stable linear reciprocating motion along the axis of the lead screw.

[0009] Preferably, the automotive part surface coating device further includes an electrostatic component, which includes an electrostatic generator, a conductive wire, and a conductive head. The electrostatic generator is electrically connected to the spray gun through the conductive wire and the conductive head to charge the paint particles sprayed from the spray gun, thereby improving the adhesion efficiency.

[0010] Preferably, to meet the conductivity requirements of the aforementioned electrostatic components, the spray gun is made of aluminum alloy with good conductivity and corrosion resistance.

[0011] Preferably, the spraying assembly further includes a paint tank, a feed pump, and a spray nozzle. The first end of the spray nozzle is connected to the feed inlet of the spray gun, and the second end is connected to the paint tank through the feed pump, thereby forming a complete supply circuit that can stably deliver paint.

[0012] Preferably, the automotive parts surface coating device further includes a cylinder, the output rod of which is fixedly connected to one side of the placement frame, for driving the placement frame to move horizontally within the spray box, so as to realize the automatic entry, exit or positioning of the parts to be processed.

[0013] Preferably, the bottom of the spray box is provided with a pull-out collection box, which is located directly below the placement frame and is used to collect excess paint dripping during the spraying process. A pull rod is also fixedly connected to one side of the collection box, which extends through the side wall of the spray box to the outside, so as to conveniently pull the collection box out of the spray box for paint recycling or cleaning operations.

[0014] As a further preferred embodiment of the above solution, the bottom of the placement frame is a mesh structure. This mesh structure is designed to not only stably support the parts, but also provide a drip channel for excess paint, allowing it to fall smoothly into the collection box below.

[0015] Preferably, the automotive parts surface coating device further includes a hot air circulation box, which is fixedly connected to one side of the outer wall of the spraying box, and is used to quickly heat and dry the wet coating on the surface of the parts after the spraying process is completed, so as to accelerate the curing process.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problems of manual labor, low efficiency, poor coating uniformity, and easy generation of spraying dead corners in the prior art by setting up a reciprocating assembly consisting of a motor, a reciprocating lead screw, and a slider to drive the spray gun to perform automated reciprocating motion. It achieves the technical effect of automated, uniform, and dead-corner-free spraying, thereby improving coating quality and production efficiency.

[0017] 2. This utility model solves the problems of severe paint scattering, low paint application rate, raw material waste and difficulty in recycling in traditional spraying processes by adding an electrostatic component to charge the sprayed paint particles, and in conjunction with a collection box set below the spraying area. It achieves the technical effects of improving paint adhesion efficiency, facilitating the recycling of excess paint, saving production costs and reducing environmental pollution.

[0018] 3. This utility model integrates automated spraying, paint recycling and hot air circulation curing functions into one unit, which solves the problems of separate equipment for each process in the traditional coating process, large footprint, cumbersome workpiece turnover and long overall processing cycle. It achieves the technical effect of compact device structure, high degree of automation and shortened product processing cycle. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the automotive parts surface coating device proposed in this utility model; Figure 2 This is a schematic diagram of the electrostatic component of the automotive parts surface coating device proposed in this utility model; Figure 3 This is a top view of the automotive parts surface coating device proposed in this utility model; Figure 4 This is a schematic diagram of the spraying assembly of the automotive parts surface coating device proposed in this utility model.

[0020] Legend: 1. Spraying box; 2. Paint box; 3. Spraying assembly; 301. Material pump; 302. Spray pipe; 303. Spray gun; 4. Reciprocating assembly; 401. Motor; 402. Reciprocating lead screw; 403. Slider; 404. Connecting arm; 5. Static component; 501. Static generator; 502. Conductive wire; 503. Conductive head; 6. Cylinder; 7. Placement frame; 8. Collection box; 9. Pull rod; 10. Hot air circulation box; 11. Support base. Detailed Implementation

[0021] 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.

[0022] Please refer to Figures 1 to 4 This utility model provides a coating device for automotive parts, which aims to solve the problems of low automation, uneven coating coverage leading to dead corners, serious paint waste, and slow coating curing resulting in low overall processing efficiency in the existing automotive parts spraying devices.

[0023] like Figure 1 and Figure 3 As shown, the coating device includes a support base 11 and a spray box 1 fixedly connected to the top of the support base 11. The support base 11 provides a stable installation and support foundation for the entire device. The spray box 1 constitutes the main working space for surface coating operations. Inside the spray box 1 are a reciprocating assembly 4, a spraying assembly 3, and a placement frame 7. The spraying assembly 3 includes a spray gun 303 with its nozzle angled downwards. The placement frame 7 is movably disposed inside the spray box 1 and located directly below the spray gun 303 to support the automotive parts to be processed. The reciprocating assembly 4 is fixedly connected inside the spray box 1 to drive the spray gun 303 in automated reciprocating motion. The system includes a motor 401, a reciprocating screw 402, and a slider 403, all fixed inside the spray box 1. The axis of the reciprocating screw 402 is horizontally positioned, with one end connected to the output end of the motor 401. The slider 403 is threaded onto the reciprocating screw 402. When the motor 401 operates, it drives the reciprocating screw 402 to rotate, causing the slider 403 to reciprocate linearly along the axis of the reciprocating screw 402 under the action of the threaded transmission. The slider 403 is fixedly connected to the top of the spray gun 303 via a connecting arm 404, thereby accurately transmitting the linear reciprocating motion of the slider 403 to the spray gun 303, achieving automated, large-area, and uniform spraying of parts within the placement frame 7.

[0024] To further improve the adhesion efficiency and firmness of the coating on the surface of the parts, the automotive parts surface coating device also includes an electrostatic component 5. Furthermore, the electrostatic component 5 and the aforementioned spraying component 3 form a specific electrical connection relationship. The technical solution improves the utilization rate of the coating through the electrostatic adsorption effect.

[0025] Please refer to the following carefully. Figure 2 The structure of the electrostatic component 5 will be described in detail below: The electrostatic component 5 includes an electrostatic generator 501, a conductive wire 502, and a conductive head 503. The electrostatic generator 501, as the source of high-voltage static electricity, is installed on the outside of the spray gun 1. Its output end is electrically connected to the conductive head 503 through the conductive wire 502. The conductive head 503 is fixedly connected near the feed inlet of the spray gun 303, thereby stably conducting the high-voltage static electricity generated by the electrostatic generator 501 to the entire spray gun 303. During operation, the paint particles sprayed from the spray gun 303 become uniformly charged with static electricity due to contact. The automotive parts to be sprayed are usually grounded. The charged paint particles are then subjected to the electrostatic force... The coating is efficiently adsorbed onto the surface of the parts. This electrostatic adsorption relationship ensures the adhesion efficiency of the coating and the uniformity and firmness of the coating. To further enhance the conductivity, the spray gun 303 is made of aluminum alloy, which has excellent conductivity and corrosion resistance. The spraying assembly 3 also includes a paint tank 2, a feed pump 301, and a spray pipe 302. The paint tank 2 is used to store the paint. The feed pump 301 is located between the paint tank 2 and the spray pipe 302. The first end of the spray pipe 302 is connected to the spray gun 303, and the second end is connected to the paint tank 2 through the feed pump 301, forming a complete and stable paint delivery circuit.

[0026] Based on the above embodiments, the present invention may further include the following preferred technical solutions: In a preferred embodiment, to achieve automated entry and exit positioning of the placement frame 7, the device also includes a cylinder 6, please refer to... Figure 1 and Figure 2 The cylinder 6 is horizontally mounted on the side wall of the spray box 1, and its output rod is fixedly connected to one side of the placement frame 7. By controlling the extension and retraction of the cylinder 6, the placement frame 7 can be precisely driven to move horizontally within the spray box 1, thereby automatically completing the workpiece positioning and transfer before and after spraying.

[0027] As another preferred embodiment, in order to effectively recover and reuse excess paint during the spraying process, please refer to... Figure 1 and Figure 3 The bottom of the spray box 1 is equipped with a collection box 8, which is located directly below the movable placement frame 7. The collection box 8 is used to collect all excess paint that drips through the placement frame 7. To facilitate cleaning and recycling by operators, a pull rod 9 is fixedly connected to one side of the collection box 8. The pull rod 9 passes through the side wall of the spray box 1 and extends to the outside. Operators can pull the collection box 8 out of the spray box 1 by pulling the pull rod 9. To facilitate the smooth dripping of paint, the bottom of the placement frame 7 is specially designed with a mesh structure.

[0028] As another preferred embodiment, to accelerate the curing and forming of the coating on the surface of the part after spraying, please refer to... Figure 1The device also includes a hot air circulation box 10, which is fixedly connected to one side of the outer wall of the spraying box 1. It is equipped with heating elements and a fan to generate high-temperature hot air and quickly dry the sprayed parts through the circulating airflow.

[0029] The working principle of this automotive parts surface coating device is as follows: First, the car parts to be painted are placed stably in the placement frame 7. Then, the cylinder 6 is started, and the output rod of the cylinder 6 extends, pushing the placement frame 7 to be positioned directly below the spray gun 303. Next, the painting assembly 3 and the electrostatic assembly 5 are started synchronously. The paint stored in the paint tank 2 is stably transported to the spray gun 303 along the spray pipe 302 under the action of the feed pump 301. At the same time, the electrostatic generator 501 generates high voltage static electricity, which is continuously conducted to the aluminum alloy spray gun 303 through the conductive wire 502 and the conductive head 503, so that the paint particles sprayed by the spray gun 303 are uniformly charged with static electricity.

[0030] During spraying, the motor 401 in the reciprocating assembly 4 starts and drives the reciprocating screw 402 to rotate at a constant speed. Since the slider 403 and the reciprocating screw 402 are threadedly connected, the slider 403 moves smoothly in a straight reciprocating motion along the axis of the reciprocating screw 402. Through the connecting arm 404 fixedly connected to the slider 403, the spray gun 303 is driven to move synchronously back and forth. Combined with the efficient adsorption of charged paint particles on the grounded workpiece under the action of electrostatic field, the uniform spraying of the parts on the placement frame 7 with automation, no dead angles and high adhesion rate is realized. During the spraying process, the excess paint that does not adhere to the surface of the parts will pass through the mesh structure at the bottom of the placement frame 7 and fall naturally into the collection box 8 below. When it is necessary to recycle, the collection box 8 can be pulled out by pulling the lever 9 for paint recycling or cleaning.

[0031] After all the painting processes are completed, the hot air circulation box 10 is started. The heating element and the fan inside work together to generate hot air that forms a circulating airflow in the box. This airflow quickly acts on the wet coating on the surface of the part, accelerating the curing and forming of the coating, and finally completing the entire process of coating the surface of the automotive part.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coating device for automotive parts, comprising: Support base (11), and spray box (1) fixedly connected to the top of the support base (11); The spray box (1) is equipped with a reciprocating component (4), a spraying component (3), and a placement frame (7). The spraying assembly (3) includes a spray gun (303) with the nozzle of the spray gun (303) pointing downwards; The placement frame (7) is movably disposed inside the spray box (1) and located below the spray gun (303); The reciprocating assembly (4) is fixedly connected to the inside of the spray box (1). The reciprocating assembly (4) includes a motor (401), a reciprocating screw (402) and a slider (403) fixed inside the spray box (1). The axis of the reciprocating screw (402) is horizontally arranged, and one end of it is connected to the output end of the motor (401). The slider (403) is threaded onto the reciprocating screw (402), and the slider (403) is fixedly connected to the top of the spray gun (303) through a connecting arm (404).

2. The automotive parts surface coating device according to claim 1, characterized in that, The device also includes an electrostatic component (5), which includes an electrostatic generator (501), and a conductive wire (502) and a conductive head (503) electrically connected in sequence between the electrostatic generator (501) and the spray gun (303).

3. The automotive parts surface coating device according to claim 1, characterized in that, The spray gun (303) is made of aluminum alloy.

4. The automotive parts surface coating device according to claim 1, characterized in that, The spraying assembly (3) also includes a paint tank (2), a feed pump (301) and a spray pipe (302). The first end of the spray pipe (302) is connected to the spray gun (303), and the second end is connected to the paint tank (2) through the feed pump (301).

5. The automotive parts surface coating device according to claim 1, characterized in that, The device also includes a cylinder (6), the output rod of which is fixedly connected to the placement frame (7) to drive the placement frame (7) to move horizontally within the spray box (1).

6. The automotive parts surface coating device according to claim 1, characterized in that, The bottom of the spray box (1) is provided with a collection box (8), which is located directly below the placement frame (7). A pull rod (9) for pulling it out of the spray box (1) is fixedly connected to one side of the collection box (8).

7. The automotive parts surface coating apparatus according to claim 6, characterized in that, The bottom of the placement frame (7) has a mesh structure.

8. The automotive parts surface coating apparatus according to claim 1, characterized in that, The device also includes a hot air circulation box (10), which is fixedly connected to one side of the outer wall of the spray box (1).

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