A paint spraying paint nozzle

Abstract

The utility model belongs to paint nozzle technical field, especially relate to a paint nozzle for paint spraying, including paint nozzle main part, be equipped with mounting structure on paint nozzle main part, be used for connecting paint nozzle main part with spray gun main part, through several atomization air channels of paint nozzle main part periphery opening, can let air and paint mix fully, effectively promote paint atomization effect, make workpiece surface coating after paint spraying more even, fine, reduce the situation that coating is uneven, the positioning sealing cone surface in the recess and sealing structure are located mounting structure both sides respectively, and this kind of layout realizes the positioning far from paint near area, avoids paint residual liquid to pollute positioning sealing cone surface, guarantees the sealing property and positioning accuracy of positioning sealing cone surface, prevents from residual liquid pollution and leads to sealing failure or positioning deviation, ensures that paint spraying process is stable, also reduces the subsequent cleaning maintenance workload, reduces maintenance cost, prolongs the service life of nozzle.

Description

Technical Field

[0001] This utility model belongs to the field of paint nozzle technology, and in particular relates to a paint nozzle for paint spraying. Background Technology

[0002] The paint nozzle is a key component of a paint spray gun, located at the front end. It atomizes liquid paint and sprays it out in a specific shape, ensuring the paint evenly covers the surface of the object being sprayed, forming a smooth paint film. Its main functions and features include: atomizing paint: The nozzle uses high-speed airflow or pressure to break the paint into fine particles, facilitating even spraying; controlling the spray shape and flow rate: The nozzle's diameter and shape determine the spray range (e.g., fan-shaped, circular), flow rate, and paint film thickness; adapting to different scenarios: Different diameters and types of nozzles are suitable for various needs such as small-area repairs, large-area painting, and fine spraying.

[0003] In existing technologies, the unreasonable layout of the positioning and sealing structure of traditional paint nozzles has become another important factor affecting the service life of the nozzles and the stability of paint spraying. The positioning and sealing components of existing nozzles (such as positioning cones and seals) are often close to the paint outlet area, i.e. the paint near zone. During the painting operation, paint residue is very easy to splash or penetrate onto the surface of the positioning and sealing components, forming residual liquid accumulation and pollution. This not only wastes paint but also contaminates the workpiece surface and the working environment, resulting in a decrease in the positioning accuracy of the positioning and sealing cone, causing deviation in the connection between the nozzle and the spray gun body, which in turn leads to problems such as paint spraying direction deviation and unstable paint volume. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a paint nozzle for paint spraying.

[0005] A paint nozzle for paint spraying includes a paint nozzle body, wherein the paint nozzle body is provided with an installation structure for connecting the paint nozzle body to a spray gun body; The paint nozzle body is also provided with several atomizing air channels on its outer periphery, and a nozzle outlet is provided on one side of the paint nozzle body. A groove is provided on one side of the paint nozzle body, and a positioning and sealing cone surface is provided in the groove; A sealing structure is also provided on one side of the paint nozzle body; The positioning sealing cone and the sealing structure are located on both sides of the mounting structure, respectively, for positioning away from the paint near the area, to avoid residual liquid contaminating the positioning sealing cone. Furthermore, the sealing structure includes a mounting groove disposed on the outer periphery of the paint nozzle body, the mounting groove being annular in shape. Furthermore, the positioning sealing cone surface is a concave cone surface structure, which is recessed relative to the nozzle outlet of the paint nozzle body. Furthermore, a sealing element is provided in the mounting groove, and the sealing element is integrally molded from nitrile rubber. Furthermore, the number of the atomizing air channels is 10, and the 10 atomizing air channels are evenly distributed along the circumference of the paint nozzle body. Furthermore, the outer periphery of the paint nozzle body is provided with a wrench opening, and the wrench opening is hexagonal.

[0006] Furthermore, a positioning cone surface is provided between the wrench opening and the mounting structure.

[0007] Furthermore, the mounting structure has an external thread.

[0008] Furthermore, an internal paint channel is provided on one side of the paint nozzle body, and the internal paint channel is connected to the nozzle outlet.

[0009] Compared with existing technologies, the paint nozzle for paint spraying of this utility model has the following advantages: Several atomizing air channels opened around the outer periphery of the paint nozzle body allow air and paint to mix thoroughly, effectively improving the paint atomization effect. This results in a more uniform and delicate coating on the workpiece surface after painting, reducing uneven coating thickness. The positioning sealing cone and sealing structure within the groove are located on opposite sides of the mounting structure. This layout achieves positioning away from the paint's proximity area, preventing paint residue from contaminating the positioning sealing cone and ensuring its sealing performance and positioning accuracy. It also prevents seal failure or positioning deviation due to residual liquid contamination, ensuring a stable painting process. Furthermore, it reduces subsequent cleaning and maintenance workload, lowers maintenance costs, and extends the nozzle's service life. Attached Figure Description

[0010] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a schematic diagram of the interior of the paint nozzle body of this utility model; Figure 3 This is a schematic diagram of the atomizing air channel of this utility model; The markings in the diagram are as follows: 1. Paint nozzle body; 2. Mounting structure; 3. Atomizing air channel; 4. Nozzle outlet; 5. Groove; 6. Positioning sealing cone surface; 7. Mounting groove; 8. Wrench mouth; 9. Positioning cone surface; 10. Internal paint channel. Detailed Implementation

[0011] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0012] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationship and connection between the components in a specific state (as shown in the attached drawings). They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the descriptions involving "first," "second," etc., in this utility model are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0013] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0014] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" 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, and the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0015] Reference Figures 1-3 A paint nozzle for paint spraying includes a paint nozzle body 1, wherein the paint nozzle body 1 is provided with an installation structure 2 for connecting the paint nozzle body 1 to a spray gun body; The paint nozzle body 1 is also provided with several atomizing air channels 3 on its outer periphery, and a nozzle outlet 4 is provided on one side of the paint nozzle body 1. A groove 5 is provided on one side of the paint nozzle body 1, and a positioning and sealing cone surface 6 is provided in the groove 5; A sealing structure is also provided on one side of the paint nozzle body 1; The positioning sealing cone 6 and the sealing structure are located on both sides of the mounting structure 2, respectively, for positioning away from the paint near the area, to avoid residual liquid contaminating the positioning sealing cone 6. When in use, this device allows air and paint to mix thoroughly through several atomizing air channels 3 on the outer periphery of the paint nozzle body 1, effectively improving the paint atomization effect. This results in a more uniform and delicate coating on the workpiece surface after painting, reducing uneven coating thickness. The positioning sealing cone 6 and the sealing structure in the groove 5 are located on both sides of the mounting structure 2. This layout achieves positioning away from the paint near the area, avoiding paint residue contamination of the positioning sealing cone 6, ensuring the sealing performance and positioning accuracy of the positioning sealing cone 6, preventing seal failure or positioning deviation due to residual liquid contamination, and ensuring a stable painting process. It also reduces subsequent cleaning and maintenance workload, lowers maintenance costs, and extends the nozzle's service life.

[0016] In the example of this application, the sealing structure includes a mounting groove 7 disposed on the outer periphery of the paint nozzle body 1, the mounting groove 7 being annular in shape. As a preferred example of this utility model, the sealing structure adopts a structure in which an annular mounting groove 7 is provided on the outer periphery of the paint nozzle body 1. The annular design allows the sealing component (such as a sealing ring) to perfectly fit the mounting groove 7, ensuring that the sealing range covers the entire outer periphery of the nozzle and the connection part of the spray gun body, avoiding sealing dead corners, facilitating the quick disassembly of old parts and the installation of new parts, and improving maintenance efficiency.

[0017] In the example of this application, the positioning sealing cone 6 is a concave cone structure, which is recessed relative to the nozzle outlet 4 of the paint nozzle body 1. As a preferred example of this utility model, the positioning and sealing cone 6 adopts a concave cone structure. The concave cone structure increases the contact area with the corresponding part of the spray gun body, improves the positioning accuracy and sealing effect, makes the connection between the nozzle and the spray gun body tighter, and reduces the problem of paint deviation caused by inaccurate positioning.

[0018] In the example of this application, a seal (not shown in the figure) is provided in the mounting groove 7, and the seal is integrally molded from nitrile rubber. As a preferred example of this utility model, a one-piece molded nitrile rubber seal is provided in the mounting groove 7. Nitrile rubber has excellent oil resistance, wear resistance and sealing performance, and can adapt well to the paint environment, preventing the paint from corroding and swelling the seal, and ensuring that the seal maintains good sealing performance for a long time.

[0019] In the example of this application, the number of the atomizing air channels 3 is 10, and the 10 atomizing air channels 3 are evenly distributed along the circumferential direction of the paint nozzle body 1. As a preferred example of this utility model, the number of atomizing air channels 3 is set to 10, and they are evenly distributed along the circumference of the paint nozzle body 1. The number of 10 channels can provide sufficient air volume to meet the needs of paint atomization. The evenly distributed layout allows air to enter the nozzle from all directions evenly and mix evenly with the paint, avoiding the problem of poor local atomization effect caused by uneven air distribution.

[0020] In the example of this application, a wrench opening 8 is also provided on the outer periphery of the paint nozzle body 1, and the wrench opening 8 is hexagonal.

[0021] As a preferred example of this utility model, a hexagonal wrench opening 8 is provided on the outer periphery of the paint nozzle body 1. The hexagonal structure is well compatible with commonly used wrenches (such as box wrenches and open-end wrenches). When the operator installs or removes the nozzle, the wrench can be firmly locked on the wrench opening 8, which is not easy to slip, making it convenient to apply torque and easily complete the installation and removal of the nozzle.

[0022] In the example of this application, a positioning cone surface 9 is also provided between the wrench opening 8 and the mounting structure 2.

[0023] As a preferred example of this utility model, a positioning cone 9 is provided between the wrench opening 8 and the mounting structure 2. The positioning cone 9 can play a guiding and positioning role during the nozzle installation process. When the worker uses a wrench to install the nozzle through the wrench opening 8, the positioning cone 9 can guide the nozzle to quickly and accurately align with the spray gun body, reducing the adjustment time during the installation process and improving the installation efficiency.

[0024] In the example of this application, the mounting structure 2 is an external thread.

[0025] As a preferred example of this utility model, the installation structure 2 adopts an external thread structure. The external thread connection has the advantages of simple structure, reliable connection, and convenient disassembly. The operator can easily install and disassemble the nozzle with the spray gun body by rotating the nozzle, making the operation convenient and efficient.

[0026] In the example of this application, an internal paint channel 10 is provided on one side of the paint nozzle body 1, and the internal paint channel 10 is connected to the nozzle outlet 4.

[0027] As a preferred example of this utility model, the internal paint channel 10 is the core passage for paint to enter the nozzle outlet 4 from the spray gun body. The direct connection design with the nozzle outlet 4 can create a smooth and bend-free delivery path, ensuring the long-term stable operation of the nozzle.

[0028] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A paint nozzle for paint spraying, characterized in that, It includes a paint nozzle body (1), and the paint nozzle body (1) is provided with an installation structure (2) for connecting the paint nozzle body (1) to the spray gun body; The paint nozzle body (1) is also provided with several atomizing air channels (3) on its outer periphery, and a nozzle outlet (4) is provided on one side of the paint nozzle body (1). A groove (5) is provided on one side of the paint nozzle body (1), and a positioning sealing cone surface (6) is provided in the groove (5). A sealing structure is also provided on one side of the paint nozzle body (1); The positioning sealing cone (6) and the sealing structure are located on both sides of the mounting structure (2) to be positioned away from the paint near the area and to avoid residual liquid contamination of the positioning sealing cone (6).

2. The paint nozzle for paint spraying according to claim 1, characterized in that, The sealing mechanism includes a mounting groove (7) disposed on the outer periphery of the paint nozzle body (1), the mounting groove (7) being annular.

3. The paint nozzle for paint spraying according to claim 1, characterized in that, The positioning sealing cone (6) is a concave cone structure, and the concave cone structure is recessed relative to the nozzle outlet (4) of the paint nozzle body (1).

4. A paint nozzle for paint spraying according to claim 2, characterized in that, A sealing element is provided in the mounting groove (7), and the sealing element is integrally molded from nitrile rubber.

5. A paint nozzle for paint spraying according to claim 1, characterized in that, The number of the atomizing air channels (3) is 10, and the 10 atomizing air channels (3) are evenly distributed along the circumferential direction of the paint nozzle body (1).

6. A paint nozzle for paint spraying according to claim 1, characterized in that, The outer periphery of the paint nozzle body (1) is also provided with a wrench mouth (8), and the wrench mouth (8) is hexagonal.

7. A paint nozzle for paint spraying according to claim 1, characterized in that, A positioning cone surface (9) is also provided between the wrench mouth (8) and the mounting structure (2).

8. A paint nozzle for paint spraying according to claim 1, characterized in that, The mounting structure (2) is an external thread.

9. A paint nozzle for paint spraying according to claim 1, characterized in that, An internal paint channel (10) is provided on one side of the paint nozzle body (1), and the internal paint channel (10) is connected to the nozzle outlet (4).

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