Paint spraying device for vehicle door switch injection molding part

By designing a motor-driven painting device, the painting range was expanded, solving the problem of incomplete painting of injection molded parts in the existing technology, and improving the production efficiency of injection molded parts for car door openings.

CN224127604UActive Publication Date: 2026-04-17JIANGXI TIANZONG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI TIANZONG TECH CO LTD
Filing Date
2025-02-13
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing door opening injection molding part painting equipment has a limited painting angle, which results in some injection molding parts not being fully painted, producing defective products and affecting production efficiency.

Method used

A painting device including a motor, connecting rod, turntable, gear and nozzle was designed. The motor drives the connecting rod to rotate the gear, realizing the synchronous rotation of the collection bucket and the turntable. Combined with the movement of the hinge rod and connecting block, the painting range is expanded to ensure full coverage of the injection molded parts.

Benefits of technology

It enables full-coverage painting of injection molded parts, avoids the generation of defective products, improves production efficiency, and reduces the need for secondary painting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a car door switch injection molding part paint spraying device, which belongs to the field of switch injection molding part paint spraying, and comprises a box body with an opening on one side, a first gear is rotatably connected to the bottom of the inner wall of the box body, a collecting barrel is fixedly connected to the top of the first gear, and a second gear meshed with the first gear is rotatably connected to the bottom of the inner wall of the box body; through the arrangement of the motor, the connecting rod, the rotating disc, the hinge rod, the storage box, the nozzle, the first gear, the second gear and the collecting barrel, the connecting rod can drive the second gear to rotate so as to achieve the purpose of spraying paint on the injection molding part in the collecting barrel, the paint can be repeatedly used, and the cost is reduced. Furthermore, the device can be used for comprehensively spraying paint on the injection-molded parts concentrated in the collecting barrel, so that a certain number of defective products caused by incomplete paint spraying of part of the injection-molded parts are prevented, the situation that the injection-molded parts need to be subjected to secondary paint spraying and can meet the delivery standard is avoided, and the production efficiency of the injection-molded parts of the vehicle door switches is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of painting technology for plastic parts opening and closing, specifically a painting device for plastic parts opening and closing of car doors. Background Technology

[0002] Injection molded parts refer to all kinds of injection molded products produced by injection molding machines, including various packaging, parts, etc. They are mainly made of materials such as polyethylene or polypropylene and various organic solvents are added. They are widely used in the fields of automobiles, construction and medical devices. At present, in the production process of injection molded parts for car door openings, a painting device is required to paint them to ensure that they meet production standards.

[0003] However, in most existing automotive door opening injection molding parts painting devices, the limited painting angle results in some parts of the injection molding parts not being painted, leading to incomplete painting of some injection molding parts and a certain number of defective products. These parts require secondary painting to meet the factory standards, thus affecting the production efficiency of automotive door opening injection molding parts.

[0004] Therefore, this utility model provides a painting device for the plastic parts of a car door opening mechanism to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides a painting device for injection molded parts of car door openings, which aims to solve the problem that most existing car door opening injection molded parts painting devices mentioned in the background art are unable to fully paint injection molded parts concentrated in one place due to the limited painting angle, resulting in some injection molded parts not being painted and thus producing defective products.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a car door opening and molding part spraying device, comprising a box with an opening on one side, a first gear rotatably connected to the bottom of the inner wall of the box, a collection bucket fixedly connected to the top of the first gear, a second gear meshing with the first gear rotatably connected to the bottom of the inner wall of the box, a connecting rod fixedly connected to the top of the second gear, a motor for driving the connecting rod to rotate is provided on the outer wall of the box, a turntable is fixedly connected to one end of the connecting rod penetrating the box, a connecting block is provided on the inner top of the box, a storage box is fixedly connected to the bottom of the connecting block, multiple nozzles are provided at the bottom of the storage box, a hinge rod is hinged inside the turntable, and the end of the hinge rod away from the turntable is hinged to the inside of the connecting block.

[0009] As a preferred technical solution of this application, the inner cavity of the storage box is connected to a flexible tube, and the end of the flexible tube away from the storage box is connected to the inner cavity of the collection bucket.

[0010] As a preferred technical solution of this application, a water stop valve is provided on the hose, and a stabilizing pad is fixedly connected to the bottom of the box.

[0011] As a preferred technical solution of this application, a storage tank is fixedly connected to the outer surface of the collection bucket, and a flow port is opened on the outer surface of the collection bucket, which is connected to the storage tank.

[0012] As a preferred technical solution of this application, the outer surface of the collection bucket has an opening, and the inside of the collection bucket has an arc-shaped sliding door for opening and closing the opening.

[0013] As a preferred technical solution of this application, a slider is fixedly connected to the outer wall of the connecting block, and a first through hole is opened on the top of the box for the connecting block to slide.

[0014] As a preferred technical solution of this application, the top of the box is provided with a sliding groove for the slider to slide, and the side of the box is provided with a second through hole for the storage tank to rotate.

[0015] (III) Beneficial Effects

[0016] This invention, through the arrangement of a motor, connecting rod, turntable, hinge rod, storage box, nozzle, first gear, second gear, and collection bucket, allows the following: When the motor drives the connecting rod to rotate, the connecting rod drives the second gear to rotate, causing the first gear meshing with the second gear to rotate the collection bucket. Simultaneously, the connecting rod drives the turntable to rotate, and the turntable, through its movable interaction with the hinge rod, causes the hinge rod to drive the connecting block to move left and right repeatedly. This, in turn, causes the connecting block to drive the storage box to move synchronously, expanding the spraying area of ​​the nozzle. At this point, the water stop valve can be activated, allowing paint from the collection bucket to be introduced into the storage box via a hose, and then sprayed out through the nozzle to paint the injection molded parts in the collection bucket. The paint can be reused. This device can comprehensively paint the injection molded parts concentrated in the collection bucket, preventing incomplete painting of some parts and thus avoiding the need for secondary painting to meet factory standards. This significantly improves the production efficiency of injection molded parts for car door openings. Attached Figure Description

[0017] Figure 1 A schematic diagram of a paint spraying device for a car door opening and closing plastic part;

[0018] Figure 2 This is a schematic diagram of the structure of the housing in a door opening and closing plastic part spraying device;

[0019] Figure 3A schematic diagram of the collection bucket in a paint spraying device for plastic parts of a car door opening system;

[0020] Figure 4 for Figure 1 A magnified structural diagram at point A;

[0021] Figure 5 for Figure 3 A magnified structural diagram at point B;

[0022] In the picture:

[0023] 1. Box body; 2. First gear; 3. Collection bucket; 4. Second gear; 5. Connecting rod; 6. Turntable; 7. Connecting block; 8. Storage box; 9. Nozzle; 10. Hinge rod; 11. Hose; 12. Stop valve; 13. Stabilizing pad; 14. Storage trough; 15. Flow port; 16. Opening; 17. Opening and closing door; 18. Sliding block; 19. First through hole; 20. Slide groove; 21. Second through hole; 22. Motor. Detailed Implementation

[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] This utility model provides a device for painting plastic parts around car door openings, such as... Figure 1-5 As shown, the painting device includes a box 1 with an opening on one side. A first gear 2 is rotatably connected to the bottom of the inner wall of the box 1. A collection bucket 3 is fixedly connected to the top of the first gear 2. A second gear 4, which meshes with the first gear 2, is rotatably connected to the bottom of the inner wall of the box 1. A connecting rod 5 is fixedly connected to the top of the second gear 4. A motor 22 for driving the connecting rod 5 to rotate is provided on the outer wall of the box 1. A turntable 6 is fixedly connected to one end of the connecting rod 5 that penetrates the box 1. A connecting block 7 is provided on the top of the inner wall of the box 1. A storage box 8 is fixedly connected to the bottom of the connecting block 7. Multiple nozzles 9 are provided on the bottom of the storage box 8. A hinge rod 10 is hinged inside the turntable 6. The end of the hinge rod 10 away from the turntable 6 is hinged to the inside of the connecting block 7.

[0026] The collection bucket 3 provides a storage point for injection molded parts, facilitating centralized painting and improving production efficiency. When the output shaft of the motor 22 drives the connecting rod 5 to rotate the second gear 4, the first gear 2 meshing with the second gear 4 drives the collection bucket 3 to rotate. This rotation increases the paint coverage area of ​​the internal injection molded parts, improving the painting effect. Simultaneously, the connecting rod 5 drives the turntable 6 to rotate synchronously. When the turntable 6 rotates, the movable connection between it and the hinge rod 10, along with the movable cooperation between the hinge rod 10 and the connecting block 7, allows the connecting block 7 to move smoothly left and right repeatedly. As the connecting block 7 moves the storage box 8 left and right repeatedly, multiple nozzles 9 expand the painting area, achieving comprehensive painting of the injection molded parts in the collection bucket 3, improving the paint coverage, and ensuring that certain areas of some injection molded parts are painted to avoid defective products.

[0027] The inner cavity of the storage box 8 is connected to a flexible hose 11. The end of the flexible hose 11 away from the storage box 8 is connected to the inner cavity of the collection bucket 3. A water stop valve 12 is installed on the flexible hose 11. A stabilizing pad 13 is fixedly connected to the bottom of the box 1.

[0028] Furthermore, the water stop valve 12 allows the hose 11 to introduce the paint in the collection bucket 3 into the storage box 8. The paint in the storage box 8 is then sprayed out using multiple nozzles 9 to achieve the purpose of painting the injection molded parts in the collection bucket 3, so that the injection molded parts meet the production standards. At the same time, the stabilizing pad 13 ensures good stability when the box 1 is placed in a certain position, preventing the box 1 from moving slightly during the operation of the internal structure.

[0029] A storage tank 14 is fixedly connected to the outer surface of the collection bucket 3, and a flow port 15 is opened on the outer surface of the collection bucket 3, which is connected to the storage tank 14.

[0030] The storage tank 14 allows the nozzle 9, which moves left and right repeatedly, to spray paint onto the injection molded parts in the collection tank 3, resulting in a larger collection area for the sprayed paint. This prevents the nozzle 9 from exceeding the collection tank 3 and spraying paint onto other areas. Furthermore, the flow port 15 allows the paint in the storage tank 14 to flow into the collection tank 3, thereby ensuring the cleanliness of the inside of the housing 1 and effectively preventing paint waste. When the paint is in the storage tank 14, it can be discharged into the collection tank 3 for use through the flow port 15.

[0031] An opening 16 is provided on the outer surface of the collection bucket 3, and an arc-shaped sliding door 17 for opening and closing the opening 16 is provided inside the collection bucket 3.

[0032] The opening 16 provides space for workers to retrieve injection molded parts, preventing large injection molded parts from being difficult to retrieve from above the collection bucket 3. The opening 16 also provides a point for opening or sealing, preventing the injection molded parts and paint in the collection bucket 3 from leaking through the opening 16 and preventing contamination inside the box 1.

[0033] A slider 18 is fixedly connected to the outer wall of the connecting block 7. A first through hole 19 for the connecting block 7 to slide is opened on the top of the box body 1. A slide groove 20 for the slider 18 to slide is opened on the top of the box body 1. A second through hole 21 for the storage tank 14 to rotate is opened on one side of the box body 1.

[0034] The first through hole 19 provides the connecting block 7 with embedded movement space. When the connecting block 7 is driven by the hinge rod 10 to move left and right repeatedly, the connecting block 7 can only move horizontally, thus avoiding the connecting block 7 from shifting. This ensures that the nozzle 9 can accurately paint the injection molded parts in the collection bucket 3. At the same time, the connecting block 7 has good stability when it moves due to the sliding cooperation between the slider 18 and the slide groove 20, preventing the connecting block 7 from falling off. The limiting effect of the first through hole 19 allows the connecting block 7 to move left and right stably, ensuring the stability of the nozzle 9 when expanding the painting area. The second through hole 21 provides the storage tank 14 with rotation space, preventing the storage tank 14 from being restricted by the box 1 and unable to rotate smoothly along with the collection bucket 3.

[0035] Working principle:

[0036] When painting the injection molded parts of the car door opening mechanism, first, collect the injection molded parts in the collection bucket 3. Then, activate the water stop valve 12, which uses the hose 11 to introduce the paint from the collection bucket 3 into the storage box 8. The paint in the storage box 8 can then be sprayed out through multiple nozzles 9 to paint the injection molded parts in the collection bucket 3. The paint sprayed into the collection bucket 3 can be repeatedly recycled. At this time, start the motor 22, which drives the connecting rod 5 to rotate. When the connecting rod 5 drives the second gear 4 to rotate, the first gear 2 meshing with the second gear 4 can drive the collection bucket 3 to rotate, thereby increasing the paint coverage area of ​​the injection molded parts in the collection bucket 3. The connecting rod 5 can also drive the turntable 6 to rotate synchronously. When the turntable 6 rotates, the movable cooperation between it and the hinge rod 10, and the hinge rod 10 through the hinge with the connecting block 7, can drive the connecting block 7 to move smoothly left and right repeatedly. This causes the connecting block 7 to drive the storage box 8 to move left and right repeatedly, so that the nozzles 9 can expand the painting area.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A paint spraying device for a car door switch attention plastic part, characterized in that: The device includes a box (1) with an opening on one side. A first gear (2) is rotatably connected to the bottom of the inner wall of the box (1). A collection bucket (3) is fixedly connected to the top of the first gear (2). A second gear (4) meshes with the first gear (2) and is fixedly connected to the top of the second gear (4). A connecting rod (5) is fixedly connected to the top of the second gear (4). A motor (22) for driving the connecting rod (5) to rotate is provided on the outer wall of the box (1). A turntable (6) is fixedly connected to one end of the connecting rod (5) that penetrates the box (1). A connecting block (7) is provided on the top of the inner wall of the box (1). A storage box (8) is fixedly connected to the bottom of the connecting block (7). A plurality of nozzles (9) are provided on the bottom of the storage box (8). A hinge rod (10) is hinged inside the turntable (6). The end of the hinge rod (10) away from the turntable (6) is hinged to the inside of the connecting block (7).

2. The car door switch plastic injection part paint spraying device according to claim 1, characterized in that: The inner cavity of the storage box (8) is connected to a flexible tube (11), and one end of the flexible tube (11) away from the storage box (8) is connected to the inner cavity of the collection bucket (3).

3. The paint spraying device for a car door switch plastic part according to claim 2, characterized in that: A water stop valve (12) is provided on the hose (11), and a stabilizing pad (13) is fixedly connected to the bottom of the box (1).

4. The paint spraying device for a car door switch plastic part according to claim 1, characterized in that: The outer surface of the collection bucket (3) is fixedly connected to a storage tank (14), and a flow port (15) is opened on the outer surface of the collection bucket (3), which is connected to the storage tank (14).

5. The paint spraying device for a car door switch plastic part according to claim 1, characterized in that: The outer surface of the collection bucket (3) is provided with an opening (16), and the inside of the collection bucket (3) has an arc-shaped sliding door (17) for opening and closing the opening (16).

6. The paint spraying device for a car door switch plastic part according to claim 1, characterized in that: The outer wall of the connecting block (7) is fixedly connected to a slider (18), and the top of the box (1) is provided with a first through hole (19) for the connecting block (7) to slide.

7. The paint spraying device for a car door switch plastic injection molded part according to claim 4 or 6, characterized in that: The top of the box (1) is provided with a sliding groove (20) for the slider (18) to slide, and a second through hole (21) is provided on one side of the box (1) for the storage tank (14) to rotate.