A double-color coating device for an automobile trim

Abstract

The utility model relates to the field of automobile spraying technology discloses a kind of double-color coating device for automobile trim, including abutment, the clamping assembly of clamping trim is provided in the upper portion of abutment, two groups of moving assembly are provided in the top of abutment, the inner wall of two groups of moving assembly is all provided with the spraying assembly for spraying different area of trim, the end of spraying assembly is provided with the double-color coating box for the feed of spraying assembly, the double-color coating box is provided with two cavities for containing coating, by setting two groups of independent moving assembly and spraying assembly, and cooperate the two independent cavities of double-color coating box, the different area of trim can be simultaneously painted with two colors, replace traditional multiple masking, multiple spraying process, simplify process, double-color coating box interior uses two independent cavity design, realizes the physical isolation and independent supply of two colors of paint.

Description

Technical Field

[0001] This utility model relates to the field of automotive painting technology, specifically to a two-color painting device for automotive decorative parts. Background Technology

[0002] Painting is an important part of modern product manufacturing processes. The quality of rust-proof and corrosion-proof coating is one of the important aspects of overall product quality. The appearance quality of a product not only reflects its protective and decorative performance, but is also an important factor in its value. In the process of painting automobiles, the exterior walls of the car need to be painted. For example, Chinese Patent CN222889560U discloses a dynamic painting device for automobiles. Through the arrangement of a base, motor, turntable, support arm, adjusting mechanism, bidirectional lead screw, nut seat, slide, paint nozzle, adjusting mechanism, adjusting hole, extension rod, and first locking screw, the combination of the adjusting mechanism and the adjusting mechanism can achieve a better painting effect when the painting device sprays paint. However, existing coating equipment is mostly suitable for single-color coating scenarios and cannot meet the personalized needs of two-color partitioning for automotive trim parts. Traditional two-color coating often relies on multiple masking and multiple line passing processes, which is not only cumbersome and slow in production, but also prone to introducing fiber impurities due to masking operations, or producing appearance defects such as paint seepage and jagged color separation lines, affecting coating consistency. When switching paints, color mixing problems caused by pipeline residue are prone to occur, resulting in color difference fluctuations. Therefore, those skilled in the art provide a two-color coating device for automotive trim parts to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this utility model is to provide a two-color coating device for automotive decorative parts, which solves the problems mentioned in the background art above.

[0004] This utility model provides the following technical solution: a two-color coating device for automotive decorative parts, including a base, a clamping assembly for clamping decorative parts is provided above the base, two sets of moving assemblies are provided on the top of the base, and spraying assemblies for spraying different areas of the decorative parts are provided on the inner walls of the two sets of moving assemblies. A two-color paint box for feeding the spraying assembly is provided at the end of the spraying assembly, and the two-color paint box is provided with two cavities for containing paint.

[0005] As a preferred embodiment of the above technical solution, the movable component includes a connecting frame fixedly connected to the top of the base, a limiting groove is formed on the surface of the connecting frame, a rotatable connecting screw is rotatably connected inside the connecting frame, the screw is threadedly connected to the spraying component, a motor is fixedly connected to the end of the connecting frame, and the output end of the motor passes through the connecting frame and is fixedly connected to the screw. The moving components are in two groups, each driving a correspondingly connected spraying component.

[0006] As a preferred embodiment of the above technical solution, the spraying assembly includes a nut that is threadedly connected to a lead screw, an electric telescopic rod that is fixedly connected to the top of the nut, a fixing block that is fixedly connected to the end of the electric telescopic rod away from the nut, a spray nozzle that is fixedly connected to the inner wall of the fixing block, and a corrugated pipe that is fixedly connected to the end of the spray nozzle. The end of the corrugated pipe furthest from the nozzle is connected to the two-color paint box.

[0007] As a preferred embodiment of the above technical solution, the two independent cavities inside the dual-color paint box are used to hold paints of different colors respectively, and are connected to the corrugated pipe.

[0008] As a preferred embodiment of the above technical solution, the clamping assembly includes a movable bracket located above the base. A telescopic device is fixedly connected to the inner cavity of the movable bracket. A push plate is fixedly connected to the output end of the telescopic device. The push plate slides on the inner wall of the movable bracket. A clamping plate is rotatably connected to the end of the movable bracket. A driving clamping plate is rotatably connected to the inner wall of the clamping plate. The end of the push plate slides on the inner wall of the driving clamping plate.

[0009] As a preferred embodiment of the above technical solution, the opposing surfaces of the clamping plate and the driving clamping plate are provided with anti-slip serrations.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention, by setting up two sets of independent moving components and spraying components, and in conjunction with the two independent cavities of the two-color paint box, can simultaneously spray two colors on different areas of the decorative part, replacing the traditional multiple masking and spraying process, simplifying the process. The two independent cavities inside the two-color paint box achieve physical isolation and independent supply of the two colors of paint, effectively avoiding color mixing and color difference problems caused by shared pipelines or paint switching residues, ensuring the purity and consistency of the two-color coating. The clamping components accurately position and firmly clamp the decorative part, preventing coating defects caused by workpiece displacement during the spraying process. Attached Figure Description

[0011] Figure 1 A three-dimensional structural schematic diagram of a two-color painting device for automotive decorative parts; Figure 2 A two-color painting device for automotive trim parts Figure 1 Enlarged schematic diagram of the structure at point A; Figure 3 A schematic diagram of the lead screw structure of a two-color painting device for automotive trim parts; Figure 4This is a schematic diagram of the corrugated pipe structure of a two-color painting device for automotive trim parts.

[0012] Figure 5 A schematic diagram of a movable support structure for a two-color painting device for automotive trim parts; In the diagram: 1. Base; 2. Moving component; 21. Connecting frame; 210. Limiting groove; 22. Lead screw; 23. Motor; 3. Spraying assembly; 31. Nut; 32. Electric telescopic rod; 33. Fixing block; 34. Spray nozzle; 35. Corrugated pipe; 4. Two-color painted box body; 5. Clamping assembly; 51. Movable bracket; 52. Telescopic device; 520. Push plate; 53. Clamping plate; 54. Drive clamping plate. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] Please see Figures 1-5 As shown, this utility model provides a technical solution: a two-color coating device for automotive decorative parts, including a base 1, a clamping assembly 5 for clamping decorative parts is provided above the base 1, two sets of moving assemblies 2 are provided on the top of the base 1, and spraying assemblies 3 for spraying different areas of the decorative parts are provided on the inner walls of the two sets of moving assemblies 2. A two-color paint box 4 for feeding the spraying assembly 3 is provided at the end of the spraying assembly 3. The two-color paint box 4 is provided with two cavities for containing paint. The automotive trim piece to be painted is placed on the base 1. The clamping component 5 is used to precisely position and firmly clamp the trim piece to ensure that it does not shift during the spraying process. According to the design requirements of the two-color coating of the trim piece, the two sets of moving components 2 drive the corresponding spraying components 3 to move to the initial position of different areas of the trim piece to be sprayed. The two-color paint box 4 is activated, which supplies different colors of paint to the two sets of spraying components 3 respectively. Driven by the moving components 2, the two sets of spraying components 3 spray different areas of the trim piece simultaneously or in a preset order according to the preset trajectory to achieve two-color zone coating. After the spraying operation is completed, the spraying components 3 are reset under the action of the moving components 2, the clamping component 5 is released, the trim piece with the two-color coating completed is removed, and it enters the subsequent curing process.

[0015] As one implementation method in this embodiment, please refer to Figures 2-3As shown, the moving component 2 includes a connecting frame 21 fixedly connected to the top of the base 1. A limit groove 210 is formed on the surface of the connecting frame 21. A lead screw 22 is rotatably connected inside the connecting frame 21. The lead screw 22 is threadedly connected to the spraying component 3. A motor 23 is fixedly connected to the end of the connecting frame 21. The output end of the motor 23 passes through the connecting frame 21 and is fixedly connected to the lead screw 22. The moving components 2 consist of two sets, each driving the corresponding connected spraying components 3; By activating the dual-color paint box 4, different colors of paint are supplied to the two sets of spraying components 3 respectively. The motor 23 of the moving component 2 is activated, and the output end of the motor 23 drives the lead screw 22 to rotate. Since the lead screw 22 is threadedly connected to the spraying component 3, the rotation of the lead screw 22 drives the corresponding connected spraying component 3 to move along the limiting groove 210 of the connecting frame 21. The two sets of spraying components 3 spray different areas of the decorative parts simultaneously or in a preset order according to the preset trajectory, so as to realize dual-color partition coating.

[0016] As one implementation method in this embodiment, please refer to Figures 2-4 As shown, the spraying assembly 3 includes a nut 31 that is threadedly connected to the lead screw 22. An electric telescopic rod 32 is fixedly connected to the top of the nut 31. A fixing block 33 is fixedly connected to the end of the electric telescopic rod 32 away from the nut 31. A spray nozzle 34 is fixedly connected to the inner wall of the fixing block 33. A corrugated pipe 35 is fixedly connected to the end of the spray nozzle 34. The end of the corrugated pipe 35 furthest from the nozzle 34 is connected to the two-color paint box 4; The dual-color paint box 4 is started, and the paint is transported to the nozzle 34 through the corrugated pipe 35. Different colors of paint are supplied to the nozzles 34 of the two sets of spraying components 3 respectively. The screw 22 is driven to rotate and drive the screw nut 31 and the spraying components 3 to move along the limiting groove 210 of the connecting frame 21. At the same time, the electric telescopic rod 32 extends and retracts in real time according to the preset parameters to adjust the position of the nozzle 34. The two sets of nozzles 34 spray different areas of the decorative parts simultaneously or in a preset order according to the preset trajectory to achieve dual-color partition coating. During the zoned coating process, a set of electric telescopic rods 32 are adjusted to drive the nozzles 34 connected to them to descend, so that the two sets of nozzles 34 form a height difference, thus preventing the corrugated pipes 35 from getting tangled during the movement.

[0017] As one implementation method in this embodiment, please refer to Figure 1 As shown, the two independent cavities inside the two-color paint box 4 are used to hold different colors of paint and are connected to the corrugated pipe 35. When the two-color paint box 4 is started, the drive device inside it works, so that the paints of different colors in the two independent cavities are transported to the corresponding spraying components 3 through the connected corrugated pipe 35.

[0018] As one implementation method in this embodiment, please refer to Figure 1 , Figure 5 As shown, the clamping assembly 5 includes a movable bracket 51 located above the base 1. A telescopic device 52 is fixedly connected to the inner cavity of the movable bracket 51. A push plate 520 is fixedly connected to the output end of the telescopic device 52. The push plate 520 slides on the inner wall of the movable bracket 51. A clamping plate 53 is rotatably connected to the end of the movable bracket 51. A driving clamping plate 54 is rotatably connected to the inner wall of the clamping plate 53. The end of the push plate 520 slides on the inner wall of the driving clamping plate 54. The movable bracket 51 is connected to the robotic arm for fixing the movable bracket 51. The position of the movable bracket 51 is adjusted and fixed by the robotic arm. The telescopic device 52 is activated, and its working drive push plate 520 moves along the inner wall of the movable bracket 51. The movement of the push plate 520 drives the drive clamping plate 54 to rotate, thereby causing the drive clamping plate 54 and the clamping plate 53 to rotate relative to each other and move closer together, so as to accurately position and firmly clamp the decorative part, ensuring that the decorative part does not shift during the spraying process.

[0019] As one implementation method in this embodiment, please refer to Figure 5 As shown, the opposing surfaces of the clamping plate 53 and the driving clamping plate 54 are provided with anti-slip serrations to ensure that the decorative parts do not shift during the spraying process.

[0020] Working principle: The position of the moving bracket 51 is adjusted and fixed by the robotic arm, and then the decorative part is placed on the opposite side of the driving clamping plate 54 and the clamping plate 53. The telescopic device 52 of the clamping assembly 5 is activated, driving the push plate 520 to move. The decorative part is clamped and fixed by the rotation of the driving clamping plate 54 and the clamping plate 53. The two-color paint box 4 is activated, and the two different colors of paint are conveyed to the two sets of spray nozzles 34 through the corrugated pipe 35 respectively. The motors 23 of the two sets of moving assemblies 2 are activated respectively, driving the wires... The rod 22 rotates, causing the nut 31 and the nozzle 34 to move along the limiting groove 210. During the movement, the electric telescopic rod 32 extends and retracts according to preset parameters, adjusting the height of the nozzle 34 so that the two sets of nozzles 34 spray different areas of the decorative part according to the preset trajectory. After the spraying is completed, the nozzle 34 is reset under the action of the moving component 2, the clamping component 5 is released, and the decorative part is removed. During the partition coating process, the height difference between the two sets of nozzles 34 is formed by adjusting one set of electric telescopic rods 32 to avoid the corrugated pipe 35 from getting tangled.

[0021] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A two-color painting device for automotive trim parts, characterized in that: Includes a base (1), a clamping assembly (5) for clamping decorative parts is provided above the base (1), two sets of moving assemblies (2) are provided on the top of the base (1), and spraying assemblies (3) for spraying different areas of the decorative parts are provided on the inner walls of the two sets of moving assemblies (2), and a two-color paint box (4) for feeding the spraying assembly (3) is provided at the end of the spraying assembly (3), and the two-color paint box (4) is provided with two cavities for containing paint.

2. The two-color painting device for automotive trim parts according to claim 1, characterized in that: The moving component (2) includes a connecting frame (21) fixedly connected to the top of the base (1). A limiting groove (210) is opened on the surface of the connecting frame (21). A connecting screw (22) is rotatably connected inside the connecting frame (21). The screw (22) is threadedly connected to the spraying component (3). A motor (23) is fixedly connected to the end of the connecting frame (21). The output end of the motor (23) passes through the connecting frame (21) and is fixedly connected to the screw (22). The moving components (2) are in two groups, each driving the corresponding connected spraying components (3).

3. The two-color painting device for automotive trim parts according to claim 2, characterized in that: The spraying assembly (3) includes a nut (31) threadedly connected to a lead screw (22), an electric telescopic rod (32) fixedly connected to the top of the nut (31), a fixing block (33) fixedly connected to the end of the electric telescopic rod (32) away from the nut (31), a spray nozzle (34) fixedly connected to the inner wall of the fixing block (33), and a bellows (35) fixedly connected to the end of the spray nozzle (34). The end of the corrugated pipe (35) away from the nozzle (34) is connected to the two-color paint box (4).

4. The two-color painting device for automotive trim parts according to claim 3, characterized in that: The two independent cavities inside the dual-color paint box (4) are used to hold paint of different colors and are connected to the corrugated pipe (35).

5. The two-color painting device for automotive trim parts according to claim 1, characterized in that: The clamping assembly (5) includes a movable bracket (51) located above the base (1). A telescopic device (52) is fixedly connected to the inner cavity of the movable bracket (51). A push plate (520) is fixedly connected to the output end of the telescopic device (52). The push plate (520) slides on the inner wall of the movable bracket (51). A clamping plate (53) is rotatably connected to the end of the movable bracket (51). A driving clamping plate (54) is rotatably connected to the inner wall of the clamping plate (53). The end of the push plate (520) slides on the inner wall of the driving clamping plate (54).

6. The two-color painting device for automotive trim parts according to claim 5, characterized in that: The opposing surfaces of the clamping plate (53) and the driving clamping plate (54) are provided with anti-slip serrations.

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