Multi-color coating device for automobile decorating parts

Abstract

The utility model discloses a multi-color coating device for automobile decorating parts, which particularly relates to the field of automobile coating and comprises a spraying box, a spraying mechanism is arranged on the top of the inner side of the spraying box, and a covering mechanism is arranged on the rear side of the spraying box. A motor is started through an external power source, the output end of the motor drives a threaded rod to rotate, so that a hollow pipe is driven to move from back to front, a connecting frame and a mask plate are driven to move in the same direction through an extension rod, rollers are driven to roll along the interior of a Z-shaped groove while the connecting frame moves forwards, and the moving path of the connecting frame is consistent with the shape of the Z-shaped groove; the connecting frame is moved to the position over the decorating part, then the decorating part is sprayed through the spraying mechanism, and after spraying is completed, the output end of the motor rotates reversely to drive the hollow pipe to move backwards, so that the connecting frame and the mask plate move backwards to return to the original positions. And then a worker manually sprays transparent paint on the surface of the decorating part to complete complete spraying of the automobile decorating part.

Description

Technical Field

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

[0002] The multi-color painting system for automotive trim parts is a piece of equipment that integrates advanced spraying technology, automated control, and precision mechanical structure. It can achieve automatic switching, precise spraying, and efficient production of multiple paint colors, and is suitable for multi-color painting operations on automotive interior and exterior trim parts, components, and the entire vehicle.

[0003] Chinese patent publication number CN219051746U discloses a multi-color spraying mechanism, filed on September 26, 2022. Compared with existing technologies, this patented technology reduces manual operation and lowers the error rate; one station can spray multiple colors, eliminating the need for multiple stations and reducing floor space. However, when the above-mentioned device sprays automotive trim parts, it is not convenient to spray local areas of the trim parts, making it impossible to spray different colors for different areas. Therefore, the inventors provide a multi-color coating device for automotive trim parts to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a multi-color coating device for automotive trim parts, achieving the effect of partial spraying of automotive trim parts.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A multi-color painting device for automotive trim parts includes a spray box. A spraying mechanism is provided on the top inner side of the spray box, and a masking mechanism is provided on the rear side of the spray box. The masking mechanism includes a pair of mirror-symmetrical Z-shaped brackets fixedly connected to the spray box. Z-shaped grooves are formed on the inner side of the pair of Z-shaped brackets. A movable connecting frame is provided on the inner side of the pair of Z-shaped brackets. A mask plate is fixedly installed inside the connecting frame. The mask plate is fixed to the inner side of the connecting frame by bolts or other fasteners. Different mask plates can be disassembled and installed as needed.

[0007] As a further embodiment of this utility model: a pair of rotating rods are rotatably connected to the left and right sides of the connecting frame, and rollers are fixedly connected to the outer side of the rotating rods. The pair of rollers on the same side are tactilely connected to the corresponding Z-shaped groove.

[0008] As a further embodiment of this utility model: a fixed box is fixedly connected to one side of the spray box. The fixed box is hollow inside and open at the bottom. Threaded rods are rotatably connected to both sides of the fixed box. A hollow tube is threadedly connected to the outside of the threaded rods. An extension rod is slidably connected inside the hollow tube. The bottom of the extension rod is hinged to the connecting frame through a hinge. A motor is fixedly installed on the right side of the spray box. The output end of the motor is fixedly connected to the threaded rod.

[0009] As a further improvement of this utility model, the side of the hollow tube is adapted to the cross-sectional size of the fixing box.

[0010] As a further embodiment of this utility model: the spraying mechanism includes a support plate fixedly connected to the left and right sides inside the spraying box, the top of the support plate is provided with a movable groove, the movable groove is provided with a movable plate that can move in parallel, and a set of multi-color spray guns arranged horizontally and evenly are embedded and fixedly fixed on the top of the movable plate; the top of the multi-color spray guns is fixedly connected to a connecting pipe, and the other end of the connecting pipe is fixedly connected to the output end of the feeding mechanism.

[0011] As a further embodiment of this utility model: guide grooves are respectively provided on the front and rear sides of the interior of the movable groove, and guide blocks are slidably connected inside the guide grooves. The inner sides of the two guide blocks are fixedly connected to the moving plate; a cylinder is fixedly connected to the right side of the interior of the spray box, and the output end of the cylinder is fixedly connected to the moving plate through a fixing component.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This multi-color painting device for automotive trim parts uses an external power source to start a motor. The motor's output drives a threaded rod to rotate, which in turn moves a hollow tube from back to front. This, in turn, moves a connecting frame and a mask plate in the same direction via an extension rod. As the connecting frame moves forward, it also drives rollers to roll along the inside of a Z-shaped groove, ensuring the connecting frame's movement path aligns with the shape of the Z-shaped groove. This positions the connecting frame directly above the trim part, where it is then painted using a spraying mechanism. After painting, the motor output reverses, moving the hollow tube backward and returning the connecting frame and mask plate to their original positions. This achieves the effect of localized painting of automotive trim parts.

[0014] In addition, this multi-color painting device for automotive trim parts places the trim parts in a suitable position on the top of the placement plate. The central multi-color spray gun is aligned with the position of the trim parts. Different multi-color spray guns are aligned with the trim parts according to the required colors. When adjusting the position of the multi-color spray guns, the cylinder is activated by an external power source. The cylinder's output end extends, causing the moving plate to move to the left. The extension distance of the cylinder's output end is controlled so that the spraying end of the corresponding multi-color spray gun on the right is aligned with the trim parts. When the cylinder's output end retracts, it causes the moving plate to move to the right. The retraction distance of the cylinder's output end is controlled so that the spraying end of the corresponding multi-color spray gun on the left is aligned with the trim parts. After the corresponding multi-color spray gun positions are adjusted, the feeding mechanism is activated. The feeding mechanism uses its own pump to deliver paint into the corresponding multi-color spray gun. The paint is then sprayed onto the surface of the trim parts through the multi-color spray guns, achieving the effect of multi-color painting on the trim parts. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a multi-color painting device for automotive decorative parts;

[0016] Figure 2 This is a schematic cross-sectional view of the overall structure of a multi-color painting device for automotive decorative parts.

[0017] Figure 3 A partial structural diagram of the masking mechanism in a multi-color painting device for automotive decorative parts;

[0018] Figure 4 This is a partial right-side view of a masking mechanism in a multi-color painting device for automotive decorative parts.

[0019] In the diagram: 10. Spraying box; 11. Placement plate; 20. Spraying mechanism; 201. Support plate; 202. Movable slot; 203. Moving plate; 204. Multicolor spray gun; 205. Connecting pipe; 206. Cylinder; 207. Guide slot; 208. Guide block; 30. Masking mechanism; 301. Z-shaped bracket; 302. Z-shaped slot; 303. Connecting frame; 304. Mask plate; 305. Rotating rod; 306. Roller; 307. Fixing box; 308. Threaded rod; 309. Hollow tube; 310. Extension rod; 312. Motor. Detailed Implementation

[0020] like Figure 1 As shown, a multi-color painting device for automotive trim parts includes a spray box 10, a placement plate 11 is fixedly connected to the bottom inside of the spray box 10, and a spraying mechanism 20 is provided on the top inside of the spray box 10.

[0021] refer to Figure 1 , 2The spraying mechanism 20 includes a support plate 201 fixedly connected to the left and right sides inside the spraying box 10. The top of the support plate 201 is provided with a movable groove 202. The movable groove 202 is provided with a movable plate 203 that can move in parallel. A set of multi-color spray guns 204 arranged horizontally and evenly are embedded and fixedly fixed on the top of the movable plate 203. The top of the multi-color spray guns 204 is fixedly connected to a connecting pipe 205. The other end of the connecting pipe 205 is fixedly connected to the output end of the feeding mechanism.

[0022] Before use, different connecting pipes 205 are connected to different pigment feeding mechanisms. When in use, different feeding mechanisms are activated, and the corresponding feeding mechanism transmits the paint through the connecting pipe 205 to the inside of the multicolor spray gun 204, which then sprays it out, thereby achieving the effect of multicolor spraying.

[0023] Specifically, guide grooves 207 are respectively provided on the front and rear sides of the interior of the movable groove 202, and guide blocks 208 are slidably connected inside the guide grooves 207. The inner sides of the two guide blocks 208 are fixedly connected to the moving plate 203. A cylinder 206 is fixedly connected to the right side of the interior of the spray box 10, and the output end of the cylinder 206 is fixedly connected to the moving plate 203 through a fixing member.

[0024] Initially, the car trim piece is placed at a suitable position on top of the placement plate 11, with the central multicolor spray gun 204 aligned with its position. Different multicolor spray guns 204 are aligned with the car trim piece according to the desired color. While adjusting the position of the multicolor spray gun 204, the cylinder 206 is activated via an external power source. The output end of the cylinder 206 extends, causing the moving plate 203 to move to the left. Based on the extension distance of the cylinder 206's output end, the spraying end of the corresponding multicolor spray gun 204 on the right is aligned with the car trim piece. When the output end of the cylinder 206 retracts, it causes the moving plate 203 to move to the right. Based on the retraction distance of the cylinder 206's output end, the spraying end of the corresponding multicolor spray gun 204 on the left is aligned with the car trim piece. After adjusting the position of the corresponding multicolor spray gun 204, the feeding mechanism is activated. The feeding mechanism uses its own pump to deliver paint into the corresponding multicolor spray gun 204, which then sprays the paint onto the surface of the trim piece, achieving a multicolor spraying effect.

[0025] refer to Figure 1 , 34. A masking mechanism 30 is provided on the rear side of the spray box 10. The masking mechanism 30 includes a pair of mirror-symmetrical Z-shaped brackets 301 that are fixedly connected to the spray box 10. Z-shaped grooves 302 are provided on the inner side of the pair of Z-shaped brackets 301. A movable connecting frame 303 is provided on the inner side of the pair of Z-shaped brackets 301. A mask plate 304 is fixedly installed inside the connecting frame 303. The mask plate 304 is fixed to the inner side of the connecting frame 303 by bolts or other fasteners. Different mask plates 304 can be disassembled and installed as needed.

[0026] Preferably, a pair of rotating rods 305 are rotatably connected to the left and right sides of the connecting frame 303, and rollers 306 are fixedly connected to the outer side of the rotating rods 305. The pair of rollers 306 on the same side are in rolling connection with the corresponding Z-shaped grooves 302. Through the rolling connection between the rollers 306 and the Z-shaped grooves 302, when the connecting frame 303 moves, it will drive the rollers 306 to roll along the inside of the corresponding Z-shaped grooves 302, thereby achieving the effect of guiding the movement path of the connecting frame 303. This allows the connecting frame 303, which moves from back to front, to move forward like climbing steps to the top of the decorative part, thus covering the top part of the decorative part and achieving the effect of partial spraying of the decorative part. Furthermore, different positions of the decorative part can be covered by changing different mask plates 304.

[0027] For details, please refer to Figure 4 A fixed box 307 is fixedly connected to the right side of the spray box 10. The fixed box 307 is hollow inside and open at the bottom. Threaded rods 308 are rotatably connected to the left and right sides of the fixed box 307. A hollow tube 309 is threadedly connected to the outside of the threaded rod 308. An extension rod 310 is slidably connected inside the hollow tube 309. The bottom of the extension rod 310 is hinged to the connecting frame 303 through a hinge. A motor 312 is fixedly installed on the right side of the spray box 10. The output end of the motor 312 is fixedly connected to the threaded rod 308.

[0028] Preferably, the side of the hollow tube 309 is adapted to the cross-sectional size of the fixed box 307, thereby achieving the effect of guiding the hollow tube 309 when it moves. Initially, the connecting frame 303 is located at the rear end of the Z-shaped bracket 301. When it is necessary to partially cover the automotive trim, the motor 312 is started by an external power source. The output end of the motor 312 drives the threaded rod 308 to rotate, thereby driving the hollow tube 309 to move from back to front. This causes the connecting frame 303 and the mask plate 304 to move in the same direction through the extension rod 310. While the connecting frame 303 moves forward, it drives the roller 306 to roll along the inside of the Z-shaped groove 302, so that the moving path of the connecting frame 303 is consistent with the shape of the Z-shaped groove 302, and the connecting frame 303 moves to directly above the trim. Then, the trim is sprayed by the spraying mechanism 20. After the spraying is completed, the output end of the motor 312 reverses and drives the hollow tube 309 to move backward, so that the connecting frame 303 and the mask plate 304 move backward and return to their original positions. Then, the staff manually spray a clear coat onto the surface of the trim pieces to complete the full coating of the automotive trim pieces.

[0029] The working principle of this utility model is as follows: During use, the motor 312 is started by an external power supply. The output end of the motor 312 drives the threaded rod 308 to rotate, thereby moving the hollow tube 309 from back to front. This, in turn, drives the connecting frame 303 and the mask plate 304 to move in the same direction via the extension rod 310. Simultaneously, the connecting frame 303 moves forward, causing the roller 306 to roll along the inside of the Z-shaped groove 302, ensuring that the moving path of the connecting frame 303 matches the shape of the Z-shaped groove 302. This moves the connecting frame 303 directly above the decorative part. Then, the spraying mechanism 20 sprays the decorative part. After spraying, the output end of the motor 312 reverses, driving the hollow tube 309 to move backward, causing the connecting frame 303 and the mask plate 304 to return to their original positions. Finally, the worker manually sprays a transparent varnish onto the surface of the decorative part to complete the full spraying of the automotive decorative part.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A multi-color painting device for an automobile trim, comprising a spray booth (10), a spray mechanism (20) being provided at the inner side top of the spray booth (10), characterized in that, The rear side of the spraying box (10) is provided with a covering mechanism (30), the covering mechanism (30) comprises a pair of mirror image symmetrical Z-shaped supports (301) fixedly connected with the spraying box (10), Z-shaped grooves (302) are formed in the inner sides of the pair of Z-shaped supports (301), a movable connecting frame (303) is arranged on the inner sides of the pair of Z-shaped supports (301), a mask (304) is fixedly installed inside the connecting frame (303), the mask (304) is fixed in the inner side of the connecting frame (303) by fasteners, different masks (304) can be installed and removed according to needs, and the fasteners comprise bolts.

2. The multi-color coating apparatus for an automotive trim part according to claim 1, wherein A pair of rotating rods (305) are rotatably connected to the left and right sides of the connecting frame (303), rollers (306) are fixedly connected to the outer sides of the rotating rods (305), and the rollers (306) on the same side are rotatably connected to the corresponding side Z-shaped grooves (302).

3. The multi-color coating apparatus for an automotive trim part according to claim 1, wherein A fixed box (307) is fixedly connected to one side of the spraying box (10), the fixed box (307) is hollow and has an open bottom, threaded rods (308) are rotatably connected to the inner sides of the fixed box (307), hollow pipes (309) are threadedly connected to the outer sides of the threaded rods (308), extension rods (310) are slidably connected to the interiors of the hollow pipes (309), and the bottom of the extension rod (310) is hingedly connected to the connecting frame (303); a motor (312) is fixedly installed on the right side of the spraying box (10), and the output end of the motor (312) is fixedly connected to the threaded rod (308).

4. The multi-color coating apparatus for an automotive trim part according to claim 3, wherein The size of the side surface of the hollow pipe (309) is matched with the size of the cross section of the fixed box (307).

5. The multi-color coating apparatus for an automotive trim part according to claim 1, wherein The spraying mechanism (20) comprises support plates (201) fixedly connected to the left and right sides of the interior of the spraying box (10), the top of each support plate (201) is provided with a movable groove (202), the movable groove (202) is provided with a movable plate (203) which can move in parallel, the top of the movable plate (203) is embedded with a plurality of colorful spray guns (204) which are evenly arranged horizontally, the top of each colorful spray gun (204) is fixedly connected with a connecting pipe (205), and the other end of the connecting pipe (205) is fixedly connected with the output end of a feeding mechanism.

6. The multi-color coating apparatus for an automotive trim part according to claim 5, wherein The interior of the movable groove (202) is provided with guide grooves (207) on the front and rear sides, the guide grooves (207) are slidably connected with guide blocks (208), the inner sides of the two guide blocks (208) are fixedly connected with the movable plate (203), and the right side of the interior of the spraying box (10) is fixedly connected with a cylinder (206).

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