Local oxidation coating treatment device for plastic part

The device for localized oxidation coating of plastic parts utilizes a combination of motor and lead screw to achieve precise movement of the sliding frame and nozzle. Combined with the use of a coating limiting plate, it solves the problems of precision and uniformity in localized coating in existing technologies, and realizes precise localized oxidation coating of plastic parts.

CN223763851UActive Publication Date: 2026-01-06SHENZHEN YANYANG PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202520292402.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-01-06
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing technologies cannot achieve precise localized oxidation coating treatment of plastic parts, resulting in material waste and increased complexity of subsequent processing. Furthermore, existing localized coating methods have deficiencies in positioning accuracy and ease of operation.

Method used

A device for localized oxidation coating of plastic parts is adopted. Through the combination of motor and lead screw, the precise movement and angle control of the sliding frame and nozzle are realized. Combined with the shielding of the coating limiting plate, the uniformity of localized coating is achieved.

Benefits of technology

It enables precise local coating of plastic parts, reduces material waste, improves coating uniformity and ease of operation, and is suitable for plastic parts with complex shapes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of local oxidation coating, and particularly relates to a plastic part local oxidation coating treatment device which comprises an installation frame, a liquid flow guide box is fixedly installed at the bottom of the installation frame, and a first electric telescopic rod is fixedly installed on the inner wall of the top of the installation frame. A mounting box is fixedly mounted at the output end of the first electric telescopic rod, a first motor is fixedly mounted on the inner wall of one side of the mounting box, a first lead screw is fixedly mounted at the output end of the first motor, a plurality of limiting rods are fixedly mounted on the inner side of the mounting box, and a sliding frame is mounted on the outer side of the first lead screw in a threaded mode. According to the size of the position, needing to be coated, of the plastic part, a fourth motor can be controlled to drive the plastic part and a coating limiting disc to rotate, a plurality of through holes different in size are formed in the top of the coating limiting disc, the plastic part can be shielded by the coating limiting disc, the plastic part can be coated evenly through the device, and local coating of the plastic part can be achieved.
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Description

Technical Field

[0001] This utility model relates to the field of localized oxidation coating technology, and in particular to a device for localized oxidation coating treatment of plastic parts. Background Technology

[0002] In the production and processing of plastic parts, anodizing coating is often required to improve their performance and appearance. Traditional anodizing coating methods typically treat the entire plastic part uniformly, which cannot meet the needs of some plastic parts that only require localized coating. This "one-size-fits-all" approach not only wastes materials but may also have unnecessary impacts on areas that do not need coating, increasing the complexity of subsequent processing steps.

[0003] In the manufacturing of plastic casings for some electronic devices, only specific button and marking areas need to be anodized to enhance wear resistance and aesthetics. Applying an oxide coating to the entire casing is uneconomical and may lead to an imbalance in overall performance. Furthermore, existing localized coating methods have significant shortcomings in positioning accuracy and ease of operation, making it difficult to achieve precise localized processing of complex-shaped plastic parts. Therefore, we propose a device for localized anodizing and coating of plastic parts. Utility Model Content

[0004] The purpose of this invention is to provide a device for localized oxidation coating treatment of plastic parts, which solves the existing problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for localized oxidation coating treatment of plastic parts includes a mounting frame. A liquid guide box is fixedly installed at the bottom of the mounting frame. A first electric telescopic rod is fixedly installed on the top inner wall of the mounting frame. A mounting box is fixedly installed at the output end of the first electric telescopic rod. A first motor is fixedly installed on one inner wall of the mounting box. A first lead screw is fixedly installed at the output end of the first motor. A plurality of limiting rods are fixedly installed on the inner side of the mounting box. A sliding frame is threaded onto the outer side of the first lead screw. The sliding frame is slidably installed on the outer side of the limiting rods. A coating liquid storage tank is fixedly installed on one inner wall of the mounting frame.

[0007] As a further improvement to the above solution, a second electric telescopic rod is fixedly installed at the bottom of the sliding frame, a second motor is fixedly installed at the output end of the second electric telescopic rod, and a fixed box is fixedly installed at the output end of the second motor.

[0008] As a further improvement to the above solution, a third motor is fixedly installed on one inner wall of the fixed box, a second lead screw is fixedly installed at the output end of the third motor, and a sliding block is threaded onto the outer side of the second lead screw.

[0009] As a further improvement to the above solution, a fourth motor is fixedly installed at the bottom of the sliding block, a drive shaft is fixedly installed at the output end of the fourth motor, and a coating limiting plate is fixedly installed at the bottom of the drive shaft.

[0010] As a further improvement to the above solution, a pump body is fixedly installed on one side of the coating liquid storage tank, a transmission pipe is fixedly installed at the output end of the pump body, a nozzle is fixedly installed at the bottom of the sliding block, and one end of the transmission pipe is fixedly installed at the input end of the nozzle.

[0011] As a further improvement to the above solution, the top of the coating limiting disk is provided with multiple through holes of different sizes.

[0012] As a further improvement to the above solution, the bottom inner wall of the mounting bracket and the top of the liquid diversion box are provided with diversion grooves, and a drain pipe is fixedly installed on one side of the liquid diversion box.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] (1) A plastic part local oxidation coating treatment device of the present invention places the plastic part to be coated on the bottom inner wall of the mounting frame. At this time, the first motor can be controlled to drive the first lead screw to rotate according to the coating position. The first lead screw can drive the sliding frame to move left and right through the threaded engagement, and control the second electric telescopic rod to drive the fixed box to descend. The second motor can control the rotation direction and angle of the fixed box, and control the third motor to drive the second lead screw to rotate. The second lead screw can drive the sliding block to move through the threaded engagement.

[0015] (2) The present invention provides a device for partial oxidation coating treatment of plastic parts. According to the size of the area to be coated on the plastic parts, the fourth motor can be controlled to drive it and the coating limiting plate to rotate. The top of the coating limiting plate is provided with multiple through holes of different sizes, which can allow the coating limiting plate to cover the plastic parts, so that the device can coat the plastic parts more evenly and can coat the plastic parts locally. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of a device for partial oxidation coating treatment of plastic parts proposed in this utility model;

[0018] Figure 2 This is a partial three-dimensional structural diagram of a device for localized oxidation coating treatment of plastic parts proposed in this utility model.

[0019] Figure 3 This is a partial three-dimensional structural diagram of a device for localized oxidation coating treatment of plastic parts proposed in this utility model.

[0020] Figure 4 This is a partial three-dimensional structural diagram of a device for localized oxidation coating treatment of plastic parts proposed in this utility model.

[0021] In the diagram: 1. Mounting frame; 2. Liquid diversion box; 3. First electric telescopic rod; 4. Mounting box; 5. First motor; 6. First lead screw; 7. Limiting rod; 8. Sliding frame; 9. Coating liquid storage tank; 10. Second electric telescopic rod; 11. Second motor; 12. Fixing box; 13. Third motor; 14. Second lead screw; 15. Sliding block; 16. Fourth motor; 17. Drive shaft; 18. Coating limiting plate; 19. Pump body; 20. Transmission pipe; 21. Nozzle. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] refer to Figure 1-4 A device for partial oxidation coating treatment of plastic parts includes a mounting frame 1, a liquid guide box 2 fixedly mounted at the bottom of the mounting frame 1, a first electric telescopic rod 3 fixedly mounted on the top inner wall of the mounting frame 1, a mounting box 4 fixedly mounted at the output end of the first electric telescopic rod 3, a first motor 5 fixedly mounted on one side inner wall of the mounting box 4, a first lead screw 6 fixedly mounted at the output end of the first motor 5, a plurality of limit rods 7 fixedly mounted on the inner side of the mounting box 4, a sliding frame 8 threadedly mounted on the outer side of the first lead screw 6, the sliding frame 8 slidingly mounted on the outer side of the limit rods 7, and a coating liquid storage tank 9 fixedly mounted on one side inner wall of the mounting frame 1.

[0024] In this embodiment, a second electric telescopic rod 10 is fixedly installed at the bottom of the sliding frame 8, a second motor 11 is fixedly installed at the output end of the second electric telescopic rod 10, and a fixed box 12 is fixedly installed at the output end of the second motor 11.

[0025] In this embodiment, a third motor 13 is fixedly installed on one inner wall of the fixed box 12, a second lead screw 14 is fixedly installed at the output end of the third motor 13, and a sliding block 15 is threaded on the outer side of the second lead screw 14.

[0026] In this embodiment, a fourth motor 16 is fixedly installed at the bottom of the sliding block 15, a drive shaft 17 is fixedly installed at the output end of the fourth motor 16, and a coating limiting plate 18 is fixedly installed at the bottom of the drive shaft 17; the coating limiting plate 18 allows the nozzle 21 to perform coating operations on plastic parts of the corresponding size.

[0027] In this embodiment, a pump body 19 is fixedly installed on one side of the coating liquid storage tank 9, and a transmission pipe 20 is fixedly installed at the output end of the pump body 19. A nozzle 21 is fixedly installed at the bottom of the sliding block 15, and one end of the transmission pipe 20 is fixedly installed at the input end of the nozzle 21. The pump body 19 can transmit the liquid inside the coating liquid storage tank 9 to the nozzle 21 through the transmission pipe 20. The transmission pipe 20 is made of flexible hose, which makes it less likely for the transmission pipe 20 to break from the nozzle 21 during multi-angle movement.

[0028] In this embodiment, the top of the coating limiting disk 18 is provided with multiple through holes of different sizes. According to the size of the area of ​​the plastic part that needs to be coated, the fourth motor 16 can be controlled to drive it and the coating limiting disk 18 to rotate. The top of the coating limiting disk 18 is provided with multiple through holes of different sizes, which allows the coating limiting disk 18 to block the plastic part, so that the device can coat the plastic part more evenly and can coat local parts of the plastic part.

[0029] In this embodiment, the bottom inner wall of the mounting frame 1 and the top of the liquid guide box 2 are provided with guide grooves, and a drain pipe is fixedly installed on one side of the liquid guide box 2; the guide grooves allow excess coating liquid to circulate and be collected, and the drain pipes allow excess coating liquid to be discharged and collected in a unified manner.

[0030] The implementation principle of the plastic part local oxidation coating treatment device in this application embodiment is as follows: The plastic part to be coated is placed above the bottom inner wall of the mounting frame 1. At this time, the first motor 5 can be controlled to drive the first lead screw 6 to rotate according to the coating position. The first lead screw 6 can drive the sliding frame 8 to move left and right through the threaded engagement, and control the second electric telescopic rod 10 to drive the fixed box 12 to descend. The second motor 11 can control the rotation direction and angle of the fixed box 12, and control the third motor 13 to drive the second lead screw 14 to rotate. The second lead screw 14 can drive the sliding block 15 to move through the threaded engagement. The sliding block 15 can drive the nozzle 21 to adjust the coating spray position. According to the size of the plastic part to be coated, the fourth motor 16 can be controlled to drive it and the coating limiting plate 18 to rotate. The top of the coating limiting plate 18 has multiple through holes of different sizes, which can allow the coating limiting plate 18 to cover the plastic part, so that the device can coat the plastic part more evenly and can coat the plastic part locally.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The above provides a detailed description of the apparatus for localized oxidation coating treatment of plastic parts provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A device for local oxidation plating of a plastic part, characterized in that, Include: The mounting frame (1), the bottom of the mounting frame (1) is fixedly installed with a liquid flow guide box (2), the inner wall of the top of the mounting frame (1) is fixedly installed with a first electric telescopic rod (3), the output end of the first electric telescopic rod (3) is fixedly installed with a mounting box (4), the inner wall of one side of the mounting box (4) is fixedly installed with a first motor (5), the output end of the first motor (5) is fixedly installed with a first lead screw (6), the inner side of the mounting box (4) is fixedly installed with a plurality of limit rods (7), the outer side of the first lead screw (6) is threadedly installed with a sliding frame (8), the sliding frame (8) is slidingly installed on the outer side of the limit rod (7), the inner wall of one side of the mounting frame (1) is fixedly installed with a coated liquid storage tank (9).

2. The apparatus for partial oxidation plating of plastic parts according to claim 1, wherein The bottom of the sliding frame (8) is fixedly installed with a second electric telescopic rod (10), the output end of the second electric telescopic rod (10) is fixedly installed with a second motor (11), the output end of the second motor (11) is fixedly installed with a fixed box (12).

3. The apparatus for partial oxidation plating of plastic parts according to claim 2, wherein The inner wall of one side of the fixed box (12) is fixedly installed with a third motor (13), the output end of the third motor (13) is fixedly installed with a second lead screw (14), the outer side of the second lead screw (14) is threadedly installed with a sliding block (15).

4. The apparatus for partial oxidation plating of plastic parts according to claim 3, wherein The bottom of the sliding block (15) is fixedly installed with a fourth motor (16), the output end of the fourth motor (16) is fixedly installed with a driving shaft (17), the bottom of the driving shaft (17) is fixedly installed with a coated limiting disc (18).

5. The apparatus for partial oxidation plating of plastic parts according to claim 3, wherein One side of the coated liquid storage tank (9) is fixedly installed with a pump body (19), the output end of the pump body (19) is fixedly installed with a transmission pipeline (20), the bottom of the sliding block (15) is fixedly installed with a spray head (21), one end of the transmission pipeline (20) is fixedly installed at the input end of the spray head (21).

6. The apparatus for partial oxidation plating of plastic parts according to claim 4, wherein A plurality of through holes of different sizes are formed in the top of the coated limiting disc (18).

7. The apparatus for partial oxidation plating of plastic parts according to claim 1, wherein The inner wall of the bottom of the mounting frame (1) and the top of the liquid flow guide box (2) are provided with flow guide grooves, and one side of the liquid flow guide box (2) is fixedly installed with a liquid discharge pipeline.