A spraying device for automobile injection molding parts

By designing a combination of spray pipe, support frame and drive components, efficient spraying of injection molded parts of different shapes and sizes is achieved, solving the problem of cumbersome operation of existing equipment when dealing with a variety of injection molded parts and improving spraying efficiency.

CN224443457UActive Publication Date: 2026-07-03CHUZHOU AOFENG EQUIP MOULD TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHUZHOU AOFENG EQUIP MOULD TECH CO LTD
Filing Date
2025-06-17
Publication Date
2026-07-03

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  • Figure CN224443457U_ABST
    Figure CN224443457U_ABST
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Abstract

This utility model relates to the field of automotive injection molded parts spraying technology, specifically disclosing an automotive injection molded parts spraying equipment, including a mounting box, a spraying pipe, a guide block slidably disposed at the bottom of the mounting box, and a support frame disposed at the bottom of the guide block. A nozzle is mounted on the bottom of the spraying pipe, and a ball is fixedly connected to the spraying pipe. The ball is rotatably connected to the support frame. This utility model, by setting up a spraying pipe, support frame, ball, adjustment component, drive component, and moving component, allows the spraying pipe to rotate, thereby changing the spraying angle. The drive component can drive the mounting box to move laterally, and the moving component drives the guide block to move within the mounting box, thus enabling the spraying pipe to move laterally and vertically. This makes it suitable for injection molded parts of different shapes and sizes, reducing the number of adjustments required for the injection molded parts and improving spraying efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of automotive injection molding part spraying technology, specifically an automotive injection molding part spraying equipment. Background Technology

[0002] The main functions of spray painting on automotive injection molded parts include enhancing aesthetics, improving durability, and fulfilling functional requirements. Firstly, spray painting provides plastic parts with rich colors and gloss effects, harmonizing them with the overall vehicle design and meeting consumer demands for visual quality. Secondly, the coating effectively protects the plastic substrate from environmental factors such as ultraviolet radiation, acid rain, high temperatures, and mechanical wear, delaying aging, fading, or cracking, and extending the lifespan of the parts. Furthermore, special coatings can impart antistatic, chemical corrosion-resistant, or self-cleaning properties to the surface, making the use of spray painting equipment essential in the production of automotive injection molded parts.

[0003] A high-gloss automotive injection molded part surface spraying device, disclosed in patent publication number CN219702427U, includes a connecting pipe and a hose. The device is activated and controlled by a control device. The automotive injection molded part to be sprayed is transported to the bottom of the spraying device via a conveyor belt. A first electrically controlled pulley slides into a first slide groove, causing a connecting plate to slide into the inner wall of a fixed frame, thus effectively adjusting the height. After height adjustment, paint is delivered to the spraying device through the connecting pipe and hose via a paint bucket, and then sprayed out through a nozzle. Simultaneously, a second electrically controlled pulley slides into a third slide groove, causing the spraying device to move laterally, resulting in a more comprehensive and accurate spraying effect on the injection molded part and greatly reducing paint waste. After spraying, the part can be transported away for storage via a conveyor device.

[0004] When the aforementioned device performs spraying operations on injection molded parts, the spray head typically needs to move up and down and side to side to complete the spraying operation. However, when dealing with injection molded parts of different shapes and sizes, it is often necessary to frequently adjust the angle of the injection molded parts to ensure full spraying coverage. This process is cumbersome and inefficient. To address these issues, a spraying device for automotive injection molded parts is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an automotive injection molded parts spraying equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automotive injection molded parts spraying equipment includes a mounting box, a spraying pipe, a guide block slidably disposed at the bottom of the mounting box, and a support frame disposed at the bottom of the guide block. A nozzle is mounted on the bottom of the spraying pipe, and a ball is fixedly connected to the spraying pipe. The ball is rotatably connected to the support frame, and an adjustment component for driving the spraying pipe to rotate is provided on the support frame.

[0008] The adjustment assembly includes a fixed plate and a first arc-shaped guide plate. The two sets of fixed plates are respectively fixedly connected to both sides of the support frame. The first arc-shaped guide plate is rotatably connected between the two sets of fixed plates. A second arc-shaped guide plate is provided at the bottom of the first arc-shaped guide plate. The two ends of the second arc-shaped guide plate are rotatably connected to both sides of the inner wall of the support frame. A first motor for driving the second arc-shaped guide plate to rotate is installed on one side of the support frame. A second motor for driving the first arc-shaped guide plate to rotate is installed on one side of the fixed plate. Both the first arc-shaped guide plate and the second arc-shaped guide plate are provided with sliding grooves for sliding with the spray pipe.

[0009] Both sides of the mounting box are provided with fixing blocks, and the fixing blocks are provided with driving components for moving the mounting box. The mounting box is provided with a moving component for driving the guide block to slide.

[0010] In one alternative embodiment: the drive assembly includes a slide rod and a threaded rod, the slide rod is fixedly connected between two sets of fixed blocks, the threaded rod is rotatably connected between the two sets of fixed blocks, the mounting box is provided with a threaded hole for rotating with the threaded rod, the mounting box is provided with a through hole for sliding connection with the slide rod, and a third motor for driving the threaded rod to rotate is installed on one side of the fixed block.

[0011] In one alternative: the moving component includes a lead screw and a driven bevel gear, the lead screw is rotatably connected inside the mounting box, the driven bevel gear is fixedly connected to one end of the lead screw extending outside the mounting box, the guide block has a drive hole for cooperating with the lead screw rotatably connected, and a rotating component for driving the driven bevel gear to rotate is provided between the two sets of fixed blocks.

[0012] In one alternative: two sets of limiting plates are fixedly connected to the top of the support frame, the bottom of the guide block is fixedly connected to the top of the limiting plates, and a conveying hose is installed at the inlet of the spray pipe, the conveying hose being installed on one set of limiting plates.

[0013] In one alternative embodiment: the rotating component includes a driving bevel gear and a guide rod, the driving bevel gear meshing with a driven bevel gear, the guide rod being rotatably connected between two sets of fixed blocks, a sliding hole for sliding with the guide rod being provided on one side of the driving bevel gear, both the sliding hole and the guide rod having a cross-shaped cross section, and a fourth motor for driving the guide rod to rotate being provided on one side of the fixed blocks.

[0014] In one alternative: a positioning plate is rotatably connected to one side of the active bevel gear, the positioning plate is fixedly connected to one side of the mounting box, and the positioning plate is sleeved on the guide rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention comprises a spray pipe, a support frame, a ball, an adjustment component, a drive component, and a moving component. The adjustment component allows the spray pipe to rotate, thereby changing the spraying angle. The drive component drives the mounting box to move laterally, and the moving component drives the guide block to move within the mounting box. This allows the spray pipe to move laterally and vertically, making it suitable for injection molded parts of different shapes and sizes, reducing the number of adjustments required for the injection molded parts, and improving spraying efficiency.

[0017] This invention features a conveying hose and a limiting plate. The conveying hose can transport the spraying material to the spraying pipe, while the limiting plate positions the conveying hose to prevent it from interfering with the rotation of the spraying pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a structural diagram of the location of the positioning plate in this utility model.

[0020] Figure 3 This is a schematic diagram of the structure where the lead screw is located in this utility model.

[0021] Figure 4 This is a structural diagram of the location of the fixing plate in this utility model.

[0022] In the diagram: 11. Mounting box; 12. Guide block; 13. Fixing plate; 14. Support frame; 15. Sphere; 16. Spray pipe; 17. First arc-shaped guide plate; 18. Second arc-shaped guide plate; 19. Delivery hose; 20. Limiting plate; 21. First motor; 22. Second motor; 23. Lead screw; 24. Driven bevel gear; 25. Driven bevel gear; 26. Positioning plate; 27. Sliding hole; 28. Guide rod; 29. ​​Sliding rod; 30. Threaded rod; 31. Third motor; 32. Fourth motor; 33. Fixing block. Detailed Implementation

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] 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.

[0025] Please see Figures 1-4 In this embodiment, an automotive injection molded parts spraying equipment includes a mounting box 11, a spraying pipe 16, a guide block 12 slidably disposed at the bottom of the mounting box 11, and a support frame 14 disposed at the bottom of the guide block 12. A spray nozzle is installed at the bottom of the spraying pipe 16, and a ball 15 is fixedly connected to the spraying pipe 16. The ball 15 is rotatably connected to the support frame 14, and the support frame 14 is provided with an adjustment component for driving the spraying pipe 16 to rotate.

[0026] The adjustment assembly includes a fixed plate 13 and a first arc-shaped guide plate 17. Two sets of fixed plates 13 are respectively fixedly connected to both sides of the support frame 14. The first arc-shaped guide plate 17 is rotatably connected between the two sets of fixed plates 13. A second arc-shaped guide plate 18 is provided at the bottom of the first arc-shaped guide plate 17. The two ends of the second arc-shaped guide plate 18 are rotatably connected to both sides of the inner wall of the support frame 14. A first motor 21 for driving the second arc-shaped guide plate 18 to rotate is installed on one side of the support frame 14, and a second motor 22 for driving the first arc-shaped guide plate 17 to rotate is installed on one side of the fixed plate 13. Both the first and second arc-shaped guide plates 17 and 18 are provided with sliding grooves for the spray pipe 16 to slide. The first motor 21 is started and drives the second arc-shaped guide plate 18 to rotate. As the second arc-shaped guide plate 18 rotates, the spray pipe 16 slides in the first arc-shaped guide plate 17, thereby causing the ball 15 to rotate on the support frame 14. The second motor 22 is started and drives the first arc-shaped guide plate 17 to rotate, causing the spray pipe 16 to slide in the second arc-shaped guide plate 18. The spraying angle of the bottom nozzle of the spray pipe 16 can be adjusted, which is suitable for injection molded parts of different shapes and sizes, reduces the number of times the injection molded parts need to be adjusted, and improves the spraying efficiency.

[0027] Both sides of the mounting box 11 are provided with fixing blocks 33, and the fixing blocks 33 are provided with driving components for driving the mounting box 11 to move. The mounting box 11 is provided with a moving component for driving the guide block 12 to slide.

[0028] The drive assembly includes a slide rod 29 and a threaded rod 30. The slide rod 29 is fixedly connected between two sets of fixed blocks 33, and the threaded rod 30 is rotatably connected between the two sets of fixed blocks 33. The mounting box 11 is provided with a threaded hole for rotating with the threaded rod 30, and a through hole for sliding connection with the slide rod 29. A third motor 31 for driving the threaded rod 30 to rotate is installed on one side of the fixed block 33. When the third motor 31 is started, it drives the threaded rod 30 to rotate. As the threaded rod 30 rotates, the mounting box 11 slides on the slide rod 29. At the same time, the mounting box 11 drives the active bevel gear 25 on one side of the positioning plate 26 to slide on the guide rod 28, which can drive the spray pipe 16 to move laterally, facilitating the spraying of injection molded parts of different sizes.

[0029] The moving assembly includes a lead screw 23 and a driven bevel gear 24. The lead screw 23 is rotatably connected inside the mounting box 11, and the driven bevel gear 24 is fixedly connected to one end of the lead screw 23 extending outside the mounting box 11. The guide block 12 has a drive hole for rotatably connecting with the lead screw 23. A rotating component is provided between the two sets of fixed blocks 33 to drive the driven bevel gear 24 to rotate. The rotating component drives the driven bevel gear 24 to drive the lead screw 23 to rotate. As the lead screw 23 rotates, it drives the guide block 12 to move inside the mounting box 11, which can drive the spray pipe 16 to move, thereby facilitating the spraying of the injection molded parts.

[0030] Two sets of limiting plates 20 are fixedly connected to the top of the support frame 14. The bottom of the guide block 12 is fixedly connected to the top of the limiting plate 20. A conveying hose 19 is installed at the inlet of the spraying pipe 16. The conveying hose 19 is installed on a set of limiting plates 20. The conveying hose 19 can convey the spraying material to the spraying pipe 16. The limiting plate 20 positions the conveying hose 19 to prevent the conveying hose 19 from affecting the rotation of the spraying pipe 16.

[0031] The rotating component includes a driving bevel gear 25 and a guide rod 28. The driving bevel gear 25 meshes with a driven bevel gear 24. The guide rod 28 is rotatably connected between two sets of fixed blocks 33. A sliding hole 27 is provided on one side of the driving bevel gear 25 for sliding with the guide rod 28. Both the sliding hole 27 and the guide rod 28 have a cross-shaped cross section. A fourth motor 32 is provided on one side of the fixed block 33 for driving the guide rod 28 to rotate. When the fourth motor 32 is started, it drives the guide rod 28 to rotate. The guide rod 28 engages with the driving bevel gear 25 through the sliding hole 27, thereby driving the driving bevel gear 25 to rotate. The driven bevel gear 24 rotates by meshing with the driving bevel gear 25, which can drive the driven bevel gear 24 to rotate.

[0032] A positioning plate 26 is rotatably connected to one side of the active bevel gear 25. The positioning plate 26 is fixedly connected to one side of the mounting box 11. The positioning plate 26 is sleeved on the guide rod 28. By setting the positioning plate 26, the active bevel gear 25 can be driven to move with the mounting box 11, and the active bevel gear 25 can be positioned at the same time.

[0033] In practical use, to prevent airborne dust from adhering to the lead screw 23, guide rod 28, slide rod 29 and threaded rod 30, bellows covers can be used to protect them and prevent dust from causing problems.

[0034] The working principle of this utility model is as follows: In use, first, the fixing block 33 is installed on the top of the lifting mechanism. The inlet of the conveying hose 19 is connected to the external spray paint can supply pipe. During spraying, the lifting mechanism drives the spray pipe 16 downwards towards the injection molded part. The third motor 31 starts, driving the threaded rod 30 to rotate. As the threaded rod 30 rotates, the mounting box 11 slides on the sliding rod 29. Simultaneously, the mounting box 11 drives the active bevel gear 25 on one side of the positioning plate 26 to slide on the guide rod 28. The fourth motor 32 starts, driving the guide rod 28 to rotate. The guide rod 28 engages with the active bevel gear 25 through the sliding hole 27, thereby driving the active bevel gear 25 to rotate. The driven bevel gear 24... The lead screw 23 is rotated by meshing with the active bevel gear 25, thereby driving the guide block 12 to move within the mounting box 11. The first motor 21 starts and drives the second arc-shaped guide plate 18 to rotate. As the second arc-shaped guide plate 18 rotates, the spray pipe 16 slides within the first arc-shaped guide plate 17, thereby causing the ball 15 to rotate on the support frame 14. The second motor 22 starts and drives the first arc-shaped guide plate 17 to rotate, causing the spray pipe 16 to slide within the second arc-shaped guide plate 18. The spraying angle of the nozzle at the bottom of the spray pipe 16 can be adjusted, making it suitable for injection molded parts of different shapes and sizes, reducing the number of adjustments required for the injection molded parts, and improving spraying efficiency.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A coating equipment for automotive injection molded parts, comprising a mounting box (11), a coating pipe (16), a guide block (12) slidably disposed at the bottom of the mounting box (11), and a support frame (14) disposed at the bottom of the guide block (12), characterized in that: The bottom of the spray pipe (16) is equipped with a nozzle, and a ball (15) is fixedly connected to the spray pipe (16). The ball (15) is rotatably connected to the support frame (14). The support frame (14) is provided with an adjustment component for driving the spray pipe (16) to rotate. The adjustment assembly includes a fixed plate (13) and a first arc-shaped guide plate (17). The two sets of fixed plates (13) are fixedly connected to both sides of the support frame (14). The first arc-shaped guide plate (17) is rotatably connected between the two sets of fixed plates (13). A second arc-shaped guide plate (18) is provided at the bottom of the first arc-shaped guide plate (17). The two ends of the second arc-shaped guide plate (18) are rotatably connected to both sides of the inner wall of the support frame (14). A first motor (21) for driving the second arc-shaped guide plate (18) to rotate is installed on one side of the support frame (14). A second motor (22) for driving the first arc-shaped guide plate (17) to rotate is installed on one side of the fixed plate (13). The first arc-shaped guide plate (17) and the second arc-shaped guide plate (18) are both provided with sliding grooves for sliding with the spray pipe (16). Both sides of the mounting box (11) are provided with fixing blocks (33), and the fixing blocks (33) are provided with driving components for driving the mounting box (11) to move. The mounting box (11) is provided with a moving component for driving the guide block (12) to slide.

2. The apparatus according to claim 1, wherein: The drive assembly includes a slide rod (29) and a threaded rod (30). The slide rod (29) is fixedly connected between two sets of fixed blocks (33), and the threaded rod (30) is rotatably connected between the two sets of fixed blocks (33). The mounting box (11) is provided with a threaded hole for rotating the threaded rod (30). The mounting box (11) is provided with a through hole for sliding connection with the slide rod (29). A third motor (31) for driving the threaded rod (30) to rotate is installed on one side of the fixed block (33).

3. The apparatus according to claim 1, wherein: The moving component includes a lead screw (23) and a driven bevel gear (24). The lead screw (23) is rotatably connected inside the mounting box (11), and the driven bevel gear (24) is fixedly connected to one end of the lead screw (23) extending outside the mounting box (11). The guide block (12) has a drive hole for rotatably connecting with the lead screw (23), and a rotating component for driving the driven bevel gear (24) to rotate is provided between the two sets of fixed blocks (33).

4. The apparatus according to claim 1, wherein: The support frame (14) is fixedly connected to two sets of limiting plates (20) at the top, the guide block (12) is fixedly connected to the top of the limiting plate (20) at the bottom, and the inlet of the spray pipe (16) is equipped with a conveying hose (19), which is installed on a set of limiting plates (20).

5. The apparatus according to claim 3, wherein: The rotating component includes a driving bevel gear (25) and a guide rod (28). The driving bevel gear (25) meshes with a driven bevel gear (24). The guide rod (28) is rotatably connected between two sets of fixed blocks (33). A sliding hole (27) is provided on one side of the driving bevel gear (25) for sliding with the guide rod (28). The cross-sections of the sliding hole (27) and the guide rod (28) are both cross-shaped. A fourth motor (32) for driving the guide rod (28) to rotate is provided on one side of the fixed block (33).

6. The apparatus according to claim 5, wherein: A positioning plate (26) is rotatably connected to one side of the active bevel gear (25). The positioning plate (26) is fixedly connected to one side of the mounting box (11). The positioning plate (26) is sleeved on the guide rod (28).