Nanometer coating spraying device for surface of automobile plastic part

By using the rotating fit between the ring sleeve and the ring groove and the bolt fixing, the problems of cumbersome assembly and unstable angle adjustment of existing automotive plastic parts spraying devices are solved, realizing the quick loading and unloading of the spray gun and angle adjustment, and improving operational stability and maintenance efficiency.

CN224308758UActive Publication Date: 2026-06-02HEFEI ZHENGHONG AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI ZHENGHONG AUTO PARTS CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing automotive plastic parts spraying equipment suffers from cumbersome assembly and disassembly, poor stability in angle adjustment operation, and low maintenance efficiency when spraying multi-angle curved surfaces.

Method used

The clamping structure, which uses a ring sleeve and a ring groove for rotational engagement, combined with bolt fixing, allows for adjustment of the spray gun's angle and position. The combination of friction locking and bolt fixing ensures the stability and convenience of the spray gun.

Benefits of technology

It enables quick loading, unloading, and angle adjustment of the spray gun, improving operational stability and maintenance efficiency, and preventing the spray gun from accidentally falling off.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a nano-coating spraying device for automotive plastic parts, relating to the field of automotive spraying. It includes a first rod, multiple spray guns, and a second rod for each spray gun, with the second rod clamped onto the first rod. The clamping structure includes a first clamp holding the first rod and a second clamp holding the second rod. The first clamp has an annular groove, and the second clamp has a ring sleeve that enters the annular groove, allowing the second clamp to rotate with the first clamp. It also includes a bolt that screws into the annular groove to compress the ring sleeve. In this utility model, after the ring sleeve is inserted into the annular groove, the small annular opening automatically returns to its original position, forming a lock. Only by actively pulling the second clamp can the small annular opening be widened again to remove the ring sleeve, preventing the spray gun from accidentally falling off.
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Description

Technical Field

[0001] This utility model relates to the field of automotive painting, and more particularly to a nano-coating spraying device for automotive plastic parts. Background Technology

[0002] In the automotive plastic parts manufacturing industry, nano-coatings are often used for surface treatment to improve the durability of complex curved plastic parts such as bumpers. Because these parts have multi-angle curved surface features, mechanical spraying requires arranging spray guns from multiple directions to achieve full coverage. Currently, spray gun angle adjustment mainly relies on a shaft-type rotating connection mechanism, which has significant drawbacks: firstly, the assembly and disassembly process is cumbersome, resulting in low maintenance efficiency; secondly, after angle adjustment, manual support of the spray gun and additional operation of a locking device are required to fix the angle, leading to poor operational stability. Utility Model Content

[0003] The purpose of this invention is to provide a nano-coating spraying device for automotive plastic parts to solve the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0005] A nano-coating spraying device for automotive plastic parts includes a first rod, multiple spray guns, and each spray gun is equipped with a second rod, which is clamped onto the first rod.

[0006] The clamping structure includes a first clamp for holding a first rod and a second clamp for holding a second rod. The first clamp has an annular groove, and the second clamp has a ring sleeve that enters the annular groove to allow the second clamp to rotate with the first clamp. The structure also includes a bolt that is screwed into the annular groove to compress the ring sleeve.

[0007] Preferably, the two ends of the ring are a small ring opening and a large ring opening, and the area between the small ring opening and the large ring opening is a curved surface structure.

[0008] Preferably, the curved surface has multiple equidistant openings, and the diameter of the small ring opening is adjusted when the ring is inserted into the ring groove.

[0009] Preferably, the ring sleeve is in a relatively locked state after entering the ring groove.

[0010] Preferably, the second lever is moved to rotate the ring within the ring groove, thereby adjusting the spraying angle of the spray gun.

[0011] Preferably, the second rod can be positioned relative to the second clamp.

[0012] Preferably, the first rod can be positioned relative to the first clamp.

[0013] The beneficial effects of this utility model are:

[0014] 1. In this utility model, after the ring sleeve is inserted into the ring groove, the small ring opening automatically returns to its original position to form a lock. Only when the second clamp is actively pulled can the small ring opening be expanded again to pull out the ring sleeve, thus preventing the spray gun from accidentally falling off.

[0015] 2. In this utility model, after the ring sleeve enters the ring groove, it forms a relatively locked state through friction. By moving the second rod to rotate the ring sleeve in the ring groove, the locked state can be released, and the spray gun spraying angle can be adjusted at the same time. Attached Figure Description

[0016] Figure 1 A schematic diagram of a nano-coating spraying device for automotive plastic parts.

[0017] Figure 2 for Figure 1 A front view of the device shown;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 for Figure 3 A breakdown diagram of the area shown;

[0020] Figure 5 for Figure 4 The shown part is a split view from the opposite perspective;

[0021] Reference numerals in the attached drawings: 1. First rod; 2. Second rod; 3. First clamp; 4. Second clamp; 5. Spray gun; 6. Ring sleeve; 7. Ring groove; 8. Bolt. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0024] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0025] Example 1

[0026] In this embodiment, a nano-coating spraying device for automotive plastic parts is proposed. Please refer to [link to relevant documentation]. Figures 1-5 The first rod 1 serves as the main support structure, and multiple spray guns 5 are used to perform nano-coating spraying operations. Each spray gun 5 is equipped with an independent second rod 2 as an extension arm, and the second rod 2 is fixed to the first rod 1 by a clamping structure. The clamping mechanism includes a first clamp 3 for clamping the first rod 1 and a second clamp 4 for clamping the second rod 2. The first clamp 3 is provided with an annular groove 7, and the second clamp 4 is provided with a ring sleeve 6. During assembly, the ring sleeve 6 is inserted into the annular groove 7 to form a rotational fit. The two ends of the ring sleeve 6 are designed as a small annular opening and a large annular opening, and a curved surface structure is used for the transition between the small annular opening and the large annular opening. Multiple equally spaced opening slots are opened at this curved surface structure. When the ring sleeve 6 is inserted into the annular groove 7, the small annular opening will elastically deform to adjust its diameter. This design has two advantages. First, after the ring sleeve 6 is inserted into the annular groove 7, the small annular opening will automatically return to its original position to form a lock. Only when the second clamp 4 is actively pulled can the small annular opening be expanded again to pull out the ring sleeve 6. This design can prevent the spray gun 5 from accidentally falling off. Second, after the ring sleeve 6 enters the ring groove 7, it can form a relatively locked state. This locking state is based on friction. Of course, it can be released by moving the second rod 2 to rotate the ring sleeve 6 in the ring groove 7. The process of releasing is also the process of adjusting the angle of the spray gun 5.

[0027] Please see Figure 4 and Figure 5 It also includes bolts 8, which screw into the side wall of the annular groove 7. By compressing the curved structure of the ring sleeve 6, the ring sleeve 6 is fixed in the annular groove 7. This fixed state cannot be accessed by moving the second rod 2. Of course, when it is necessary to adjust the angle of the spray gun 5, the bolts 8 can be loosened to release the fixed state. In this embodiment, the second rod 2 can slide along the second clamp 4 and be positioned by the locking element (a screw and nut assembly structure), thus enabling the spray gun 5 to... Figure 2 The position is adjusted horizontally as shown; the first clamp 3 can slide along the first rod 1 and is positioned by the locking component (a combination of screws and nuts), thus realizing the spray gun 5 in the horizontal direction. Figure 2 Adjust the position in the vertical direction as shown.

[0028] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A nano-coating spraying device for automotive plastic parts, comprising a first rod, multiple spray guns, each spray gun being equipped with a second rod, the second rod being clamped onto the first rod, characterized in that: The clamping structure includes a first clamp for holding a first rod and a second clamp for holding a second rod. The first clamp has an annular groove, and the second clamp has a ring sleeve that enters the annular groove to allow the second clamp to rotate with the first clamp. The structure also includes a bolt that is screwed into the annular groove to compress the ring sleeve.

2. The nano-coating spraying device for automotive plastic parts according to claim 1, characterized in that: The two ends of the ring are the small ring opening and the large ring opening, and the area between the small ring opening and the large ring opening is a curved surface structure.

3. The nano-coating spraying device for automotive plastic parts according to claim 2, characterized in that: The curved surface has multiple equidistant openings, and the diameter of the small ring opening is adjusted when the ring is inserted into the ring groove.

4. The nano-coating spraying device for automotive plastic parts according to claim 3, characterized in that: After the ring enters the ring groove, it is in a relatively locked state.

5. The nano-coating spraying device for automotive plastic parts according to claim 4, characterized in that: Move the second lever to rotate the ring within the groove and adjust the spray angle of the spray gun.

6. The nano-coating spraying device for automotive plastic parts according to claim 1, characterized in that: The second rod can be adjusted in position relative to the second clamp.

7. The nano-coating spraying device for automotive plastic parts according to claim 1, characterized in that: The first lever can be adjusted in position relative to the first clamp.