A rotary spraying fixture for injection molded products

By designing a rotary spraying fixture that drives the injection molded product to rotate and allows for loading and unloading operations, the problem of low spraying efficiency in existing technologies has been solved, achieving comprehensive and uniform spraying of injection molded products and efficient production.

CN224271646UActive Publication Date: 2026-05-26YPI PLASTIC IND SUZHOU CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YPI PLASTIC IND SUZHOU CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The current spraying process for injection molded products is inefficient, as loading and unloading operations cannot be performed during the spraying process, resulting in wasted time.

Method used

Design a rotary spraying fixture, including a spraying machine, a switching mechanism, a reciprocating lifting mechanism, and a spray gun assembly. The fixture drives the injection molded product to rotate via a rotary motor, and drives the spray gun to perform comprehensive and uniform spraying via a lifting motor, while also allowing loading and unloading operations.

Benefits of technology

It achieves comprehensive and uniform coating of injection molded products, reduces processing waiting time, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224271646U_ABST
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Abstract

This utility model discloses a rotary spraying fixture for injection-molded products, including a spraying machine, a switching mechanism, a reciprocating lifting mechanism, and a spray gun assembly. The top front end of the spraying machine is the loading / unloading station, and the top rear end is the spraying station. The switching mechanism includes a switching plate and a switching motor. The switching plate is located above the spraying machine, with four positioning seats for assembling injection-molded products on its top. Four rotary motors, each corresponding to a positioning seat, are located at the bottom of the switching plate. Two of the positioning seats are located at the loading / unloading station, and the other two are located at the spraying station. The switching motor is fixedly connected to the center of the bottom of the switching plate. The reciprocating lifting mechanism is installed at the top rear end of the spraying machine. The spray gun assembly is fixedly connected to the output end of the reciprocating lifting mechanism. This rotary spraying fixture for injection-molded products achieves comprehensive and uniform spraying of the injection-molded products, reduces processing waiting time, and improves work efficiency.
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Description

Technical Field

[0001] This utility model relates to a rotary spraying fixture for injection molded products. Background Technology

[0002] During the manufacturing process of injection molded products, the surface of the injection molded products often needs to be repaired, for example, by spraying to improve the quality of the injection molded products.

[0003] However, in existing technologies, the spraying process for injection molded products is mostly static, with only one side being sprayed at a time before the other side is sprayed, resulting in low spraying efficiency. Furthermore, loading and unloading cannot be performed during the spraying process; these operations must be completed after spraying, which wastes time and further impacts work efficiency. Summary of the Invention

[0004] The purpose of this utility model is to provide a rotary spraying fixture for injection molded products. Its structure is reasonable and can drive the injection molded product to rotate during the spraying process, thereby achieving comprehensive and uniform spraying of the injection molded product. In addition, loading and unloading operations can be performed during the spraying of injection molded products, which can reduce processing waiting time and help improve work efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is to design a rotary spraying fixture for injection molded products, wherein the injection molded products are box-shaped, and the rotary spraying fixture includes a spraying machine base, a switching mechanism, a reciprocating lifting mechanism, and a spray gun assembly.

[0006] The top front end of the spraying machine is the loading and unloading station, and the top rear end of the spraying machine is the spraying station.

[0007] The switching mechanism includes a switching plate and a switching motor. The switching plate is located above the spraying machine. The top of the switching plate is provided with four positioning seats for injection molded product assembly, and the bottom of the switching plate is provided with four rotary motors corresponding to the positioning seats. The output shaft of the rotary motor passes through the switching plate and is fixedly connected to the bottom of the corresponding positioning seat. Two of the four positioning seats are located at the loading and unloading station, and the other two of the four positioning seats are located at the spraying station. The switching motor is mounted on the top center of the spraying machine via a bracket, and the output shaft of the switching motor is fixedly connected to the bottom center of the switching plate.

[0008] The reciprocating lifting mechanism is mounted on the top rear end of the spraying machine via a frame;

[0009] The spray gun assembly is installed at the spraying station. The spray gun assembly includes two horizontal spray guns, which are fixedly connected to the output end of the reciprocating lifting mechanism, and the two horizontal spray guns correspond one-to-one with the two positioning seats located at the spraying station.

[0010] Preferably, the reciprocating lifting mechanism includes a vertical slide rail, a slider, and a lifting motor. The vertical slide rail is fixedly connected to the frame, the slider is slidably connected to the vertical slide rail, the lifting motor is installed at the top of the vertical slide rail, and the output shaft of the lifting motor is fixedly connected to a vertical lead screw threaded to the slider. The two horizontal spray guns are respectively fixedly connected to the slider via connecting rods.

[0011] Preferably, the shape of the positioning seat matches the internal shape of the injection molded product.

[0012] Preferably, the rotary motor, switching motor, and lifting motor are all servo motors.

[0013] Preferably, the bottom of the spraying machine is provided with support feet.

[0014] The advantages and beneficial effects of this utility model are as follows: It provides a rotary spraying fixture for injection molded products, which has a reasonable structure and can drive the injection molded products to rotate during the spraying process, thereby realizing comprehensive and uniform spraying of the injection molded products; in addition, loading and unloading operations can be performed when the injection molded products are being sprayed, which can reduce processing waiting time and help improve work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the switching plate and positioning seat in this utility model.

[0017] Reference numerals: 1. Spraying machine base; 2. Switching plate; 3. Switching motor; 4. Positioning seat; 5. Rotary motor; 6. Horizontal spray gun; 7. Vertical slide rail; 8. Slider; 9. Lifting motor; 10. Vertical lead screw; 11. Support foot; 12. Hose; 100. Injection molded product. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0019] The specific technical solution of this utility model is as follows:

[0020] like Figure 1 and Figure 2 As shown, a rotary spraying fixture for injection molded products 100 is a box-shaped body. The rotary spraying fixture includes a spraying machine base 1, a switching mechanism, a reciprocating lifting mechanism, and a spray gun assembly.

[0021] The top front end of the spraying machine 1 is the loading and unloading station, and the top rear end of the spraying machine 1 is the spraying station.

[0022] The switching mechanism includes a switching plate 2 and a switching motor 3. The switching plate 2 is set above the spraying machine base 1. The top of the switching plate 2 is provided with four positioning seats 4 for 100 sets of injection molded products, and the bottom of the switching plate 2 is provided with four rotary motors 5 corresponding to the positioning seats 4. The output shaft of the rotary motor 5 passes through the switching plate 2 and is fixedly connected to the bottom of the corresponding positioning seat 4. Two of the four positioning seats 4 are located at the loading and unloading station, and the other two positioning seats 4 are located at the spraying station. The switching motor 3 is installed at the top center of the spraying machine base 1 by a bracket, and the output shaft of the switching motor 3 is fixedly connected to the bottom center of the switching plate 2.

[0023] The reciprocating lifting mechanism is mounted on the top rear end of the spraying machine base 1 via a frame;

[0024] The spray gun assembly is installed at the spraying station. The spray gun assembly includes two horizontal spray guns 6, which are fixedly connected to the output end of the reciprocating lifting mechanism, and the two horizontal spray guns 6 correspond one-to-one with the two positioning seats 4 located at the spraying station.

[0025] Furthermore, the reciprocating lifting mechanism includes a vertical slide rail 7, a slider 8, and a lifting motor 9. The vertical slide rail 7 is fixedly connected to the frame, the slider 8 is slidably connected to the vertical slide rail 7, the lifting motor 9 is installed at the top of the vertical slide rail 7, and the output shaft of the lifting motor 9 is fixedly connected to a vertical lead screw 10 threadedly connected to the slider 8. The two horizontal spray guns 6 are respectively fixedly connected to the slider 8 through connecting rods.

[0026] Furthermore, the shape of the positioning seat 4 matches the internal shape of the injection molded product 100.

[0027] Furthermore, the rotary motor 5, the switching motor 3, and the lifting motor 9 are all servo motors.

[0028] Furthermore, the bottom of the spraying machine 1 is provided with support feet 11.

[0029] The working principle of the rotary spraying fixture for injection molded products of this utility model is as follows:

[0030] In use, the injection molded product 100 to be sprayed is mounted on the two positioning seats 4 located at the loading and unloading station. Then, the switching plate 2 is driven to rotate 180 degrees by the switching motor 3, so that the positions of the two positioning seats 4 located at the loading and unloading station and the two positioning seats 4 located at the spraying station are interchanged. At this time, the loading and unloading operations of the positioning seats at the loading and unloading station can be performed again. At the same time, the injection molded product 100 mounted on the two positioning seats 4 located at the spraying station on the switching plate 2 is sprayed by two horizontal spray guns 6. The horizontal spray guns 6 can be connected to the hose 12. The external spray coating supply equipment, during the spraying process, drives the positioning seat 4 and the injection molded product 100 to rotate through the rotary motor 5, thereby achieving comprehensive and uniform spraying of the outer surface of the injection molded product 100. In addition, the horizontal spray gun 6 can be driven to perform reciprocating lifting motion through the reciprocating lifting mechanism, which is beneficial to further improve the comprehensiveness and uniformity of the spraying. When the reciprocating lifting mechanism is working, the vertical lead screw 10 is driven to rotate through the forward and reverse operation of the lifting motor 9. The vertical lead screw 10 drives the slider 8 to perform reciprocating lifting motion along the vertical slide rail 7 through the threaded connection with the slider 8.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A rotary spraying tool for injection-molded products, the injection-molded product (100) being a box-like body, characterized in that, The rotary spraying fixture includes a spraying machine (1), a switching mechanism, a reciprocating lifting mechanism, and a spray gun assembly; The top front end of the spraying machine (1) is the loading and unloading station, and the top rear end of the spraying machine (1) is the spraying station. The switching mechanism includes a switching plate (2) and a switching motor (3). The switching plate (2) is set above the spraying machine (1). The top of the switching plate (2) is provided with four positioning seats (4) for injection molded products (100) to be assembled. The bottom of the switching plate (2) is provided with four rotary motors (5) corresponding to the positioning seats (4). The output shaft of the rotary motor (5) passes through the switching plate (2) and is fixedly connected to the bottom of the corresponding positioning seat (4). Two of the four positioning seats (4) are located at the loading and unloading station. The other two of the four positioning seats (4) are located at the spraying station. The switching motor (3) is installed at the top center of the spraying machine (1) by a bracket. The output shaft of the switching motor (3) is fixedly connected to the bottom center of the switching plate (2). The reciprocating lifting mechanism is installed at the top rear end of the spraying machine (1) via a frame; The spray gun assembly is installed at the spraying station. The spray gun assembly includes two horizontal spray guns (6). The two horizontal spray guns (6) are fixedly connected to the output end of the reciprocating lifting mechanism, and the two horizontal spray guns (6) correspond one-to-one with the two positioning seats (4) located at the spraying station.

2. The spin-spraying tooling for injection-molded products of claim 1, wherein, The reciprocating lifting mechanism includes a vertical slide rail (7), a slider (8), and a lifting motor (9). The vertical slide rail (7) is fixedly connected to the frame, the slider (8) is slidably connected to the vertical slide rail (7), the lifting motor (9) is installed at the top of the vertical slide rail (7), and the output shaft of the lifting motor (9) is fixedly connected to a vertical lead screw (10) threadedly connected to the slider (8). The two horizontal spray guns (6) are fixedly connected to the slider (8) through connecting rods.

3. The spin-spraying tooling for injection-molded products of claim 1, wherein, The shape of the positioning seat (4) matches the internal shape of the injection molded product (100).

4. The spin-spraying tooling for injection molded products of claim 2, wherein, The rotary motor (5), switching motor (3) and lifting motor (9) are all servo motors.

5. The spin-spraying tooling for injection molded products of claim 1, wherein, The bottom of the spraying machine (1) is provided with support feet (11).