A metal-made spray nozzle shielding assembly

Abstract

The utility model discloses the technical field of spraying shielding, and specifically is a kind of metal-made pipe orifice shielding assembly for spraying, including sleeve, sleeve is the cylindrical structure of bottom opening, sleeve opening one fifth to one sixth place lateral wall thickness is greater than the thickness of top lateral wall, and the outside of sleeve top is equipped with protrusion;Through the sleeve of large thickness of bottom, the part pipe orifice is sleeved, shielding the effect of preventing spraying is played, and installation position is uniform, more beautiful, also facilitate subsequent dismounting.

Description

Technical Field

[0001] This utility model relates to a shielding component, specifically a metal spraying nozzle shielding component, belonging to the field of spraying shielding technology. Background Technology

[0002] In the industrial manufacturing sector, surface coating of metal components is a key process for improving the corrosion resistance, wear resistance, and appearance of products. It is widely used in the production and processing of various products such as automotive parts, machinery and equipment, and pipe fittings. When coating metal parts with nozzles (such as hydraulic pipes, pneumatic connectors, and container interfaces), it is crucial to strictly avoid coating adhering to the inner wall of the nozzle and the sealing end face. If the nozzle is contaminated with coating, it will not only lead to decreased sealing performance and impaired interface fit accuracy during subsequent assembly, but may also cause functional failures such as fluid channel blockage and valve core jamming.

[0003] Currently, the industry's methods for masking spray coatings at pipe openings mainly rely on traditional manual operations, such as sealing with tape, filling with foam plugs, or tightly sealing with general-purpose rubber stoppers. However, these existing solutions have significant technical drawbacks:

[0004] Firstly, tape wrapping relies on manual experience, and the number of wrapping layers and tightness are difficult to control uniformly. This can easily lead to poor edge sealing, causing paint leakage. Furthermore, adhesive residue can easily remain during tape removal after spraying, increasing the difficulty of cleaning.

[0005] Secondly, the foam plug material is soft and easily deformed. In the high-temperature environment of spraying operations or when in contact with solvent-based coatings, it is prone to shrinkage and breakage, failing to form a stable shield. Furthermore, the broken foam fragments may adhere to the surface of the parts, affecting the spraying quality.

[0006] Third, most general-purpose rubber stoppers have a uniform wall thickness, which makes them poorly compatible with pipe openings of different diameters and chamfers. They may fall off during spraying due to insufficient interference fit, or become difficult to disassemble due to excessive interference fit. This also results in inconsistent installation positions, affecting the aesthetics of subsequent spraying.

[0007] Therefore, developing a metal spray nozzle shielding component that is highly adaptable, provides reliable shielding, is easy to assemble and disassemble, and ensures the structural integrity of the nozzle is a key technological requirement for solving current industry pain points and improving the quality and efficiency of the spraying process. Utility Model Content

[0008] The purpose of this utility model is to provide a metal spraying nozzle shielding component to solve the above problems. The component uses a thick bottom sleeve to fit over the nozzle of the part, thus shielding it from spraying. It also has a uniform installation position, is more aesthetically pleasing, and is convenient for subsequent disassembly.

[0009] This utility model achieves the above-mentioned objective through the following technical solution: a metal spraying nozzle shielding component, including a sleeve, wherein the sleeve is a cylindrical structure with an open bottom, and the thickness of the side wall at one-fifth to one-half of the opening of the sleeve is greater than the thickness of the top side wall.

[0010] Preferably, the sleeve is made of rubber material, and the inner bottom side of the sleeve has an arc-shaped structure.

[0011] Preferably, the outer side of the top of the sleeve is provided with a protrusion.

[0012] Preferably, the protrusions are provided in multiple forms, and the protrusions are in the form of a ring structure.

[0013] The beneficial effects of this utility model are as follows: the sleeve design facilitates the fitting of the nozzle of the part to be sprayed, preventing the nozzle from being sprayed during spraying, making operation convenient. At the same time, the thickness of the bottom one-fifth to one-half of the sleeve is 10 to 50 microns greater than the thickness of the top sidewall. Since the nozzle diameter may have a certain error when spraying multiple parts, this design helps to ensure a tight fit between the sleeve and the nozzle, preventing interference and thus avoiding inconsistent installation positions of the sleeve and nozzle, which would affect the aesthetics. In addition, the sleeve has a protrusion on the outer side of the top, which increases friction and facilitates subsequent removal and disassembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the protrusion and the sleeve of this utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model.

[0017] In the diagram: 1. Sleeve; 2. Protrusion. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-3 As shown, a metal spraying nozzle shielding assembly includes a sleeve 1, which is a cylindrical structure with an opening at the bottom. The sidewall thickness of the sleeve 1 at one-fifth to one-half of the opening is greater than the thickness of the top sidewall.

[0020] As a technical optimization of this utility model, the sleeve 1 is made of rubber material, and the inner bottom of the sleeve 1 has an arc-shaped structure, which facilitates fitting and installation with the pipe opening and makes the operation smoother.

[0021] As a technical optimization of this utility model, a protrusion 2 is provided on the outer side of the top of the sleeve 1.

[0022] As a technical optimization of this utility model, multiple protrusions 2 are provided. The protrusions 2 have a circular structure, which helps to increase the anti-slip effect and realize the disassembly for subsequent replacement.

[0023] In use, when spraying parts, a sleeve 1 of appropriate diameter is inserted into the opening to be covered, so that the sleeve 1 fits the opening and prevents the opening from being sprayed. At the same time, the thickness of the bottom one-fifth to one-half of the sleeve 1 is greater than the thickness of the top side wall. This can be set according to different products. The extra thickness at the bottom of the sleeve 1 is about 10 to 50 microns. Since the opening diameter may have a certain error when spraying multiple parts, this helps to ensure a tight fit between the sleeve 1 and the opening, preventing interference and causing the sleeve 1 and the opening to be installed in different positions, which would affect the appearance. At the same time, the outer side of the top of the sleeve 1 is provided with a protrusion 2, which increases the friction and facilitates subsequent removal and disassembly.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A metal spraying nozzle shielding assembly, comprising a sleeve (1), characterized in that: The sleeve (1) is a cylindrical structure with an open bottom. The thickness of the side wall at one-fifth to one-half of the opening of the sleeve (1) is greater than the thickness of the top side wall.

2. The metal spraying nozzle shielding assembly according to claim 1, characterized in that: The sleeve (1) is made of rubber material, and the inner bottom of the sleeve (1) has an arc-shaped structure.

3. A metal spraying nozzle shielding assembly according to claim 1, characterized in that: The sleeve (1) has a protrusion (2) on the outer side of its top.

4. A metal spraying nozzle shielding assembly according to claim 3, characterized in that: The protrusion (2) is provided in multiple parts, and the protrusion (2) is a circular ring structure.

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