Paint spraying high-voltage electrostatic ring

Abstract

The utility model discloses a paint spraying high-voltage electrostatic ring, and relates to the technical field of electrostatic rings, the paint spraying high-voltage electrostatic ring comprises an electrode ring base and a plurality of electrode needle shells, the electrode ring base is a circular ring body, and the top of the electrode ring base is uniformly provided with a plurality of threaded openings; a screw cap is arranged at the bottom of the electrode needle shell and is in threaded connection with a threaded opening in the top of the electrode ring base; an electrode fine needle is arranged at the central axis of the inner upper end of the electrode needle shell, and a through hole matched with the electrode fine needle is formed in the center of the top of the electrode needle shell; a capacitor is arranged in the electrode needle shell and located at the bottom of the electrode fine needle, the top of the capacitor is electrically connected to the bottom of the electrode fine needle, and the lower end of the capacitor penetrates out of the bottom wall of the electrode needle shell and is located in the screw cap; conductive springs are fixedly arranged at the positions, below the threaded openings, in the electrode ring base, and contact pins are fixedly connected to the tops of the conductive springs.

Description

Technical Field

[0001] The utility model relates to the technical field of static rings, specifically a high-voltage static ring for paint spraying. Background Art

[0002] In the existing painting process, electrostatic spraying technology is usually adopted to ensure the uniformity of the coating and improve the material utilization rate. Traditional electrostatic spraying equipment generally includes a high-voltage power supply, an electrostatic spray gun, and a grounded workpiece. The high-voltage power supply generates a high voltage, makes the paint particles charged through the electrostatic spray gun, and forms a uniform coating on the grounded workpiece. However, such equipment has problems such as uneven charge distribution and poor spraying effect on workpieces with complex shapes during operation.

[0003] The deficiencies of the prior art are as follows:

[0004] 1. Uneven charge distribution causes paint to bounce or drip;

[0005] 2. For non-planar or complex-shaped workpieces, it is difficult for traditional equipment to ensure the uniformity of the coating;

[0006] 3. Adjusting and optimizing the spraying process is time-consuming and laborious, affecting the overall operation efficiency.

[0007] In view of these problems, the purpose of the present utility model is to provide a new type of high-voltage static ring device to overcome the above-mentioned drawbacks and improve the painting quality and efficiency. Summary of the Utility Model

[0008] The present utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, the present utility model provides a high-voltage static ring for paint spraying, which solves the problems raised in the above background art.

[0009] To achieve the above object, the present utility model provides a high-voltage static ring for paint spraying,

[0010] As a further scheme of the present utility model:

[0011] The high-voltage static ring for paint spraying includes an electrode ring base and a plurality of electrode needle housings. The electrode ring base is a circular ring body, and a plurality of threaded ports are uniformly arranged on the top of the electrode ring base; a rotary cover is arranged at the bottom of the electrode needle housing, and the rotary cover is threadedly connected to the threaded port on the top of the electrode ring base;

[0012] The electrode needle housing is an axisymmetric structure. An electrode thin needle is arranged at the upper end inside the electrode needle housing at its central axis, and a through hole is opened at the center of the top of the electrode needle housing to cooperate with the electrode thin needle;

[0013] Inside the electrode needle housing, a capacitor is provided at the bottom of the electrode thin needle. The top of the capacitor is electrically connected to the bottom of the electrode thin needle, and the lower end of the capacitor passes through the bottom wall of the electrode needle housing and is located inside the screw cap.

[0014] Inside the electrode ring base, conductive springs are fixedly provided below the threaded openings. The top of the conductive spring is fixedly connected to a contact needle, and the top of the contact needle is fixed on the bottom wall of the threaded opening in the electrode ring base.

[0015] Furthermore, the bottom of the capacitor is flush with the bottom of the screw cap. When the screw cap is threadedly connected to the electrode ring base, the bottom of the capacitor is electrically connected to the contact needle.

[0016] Furthermore, the outer side wall of the electrode ring base is provided with threads for facilitating the installation of the electrode ring base at the nozzle of the spraying device.

[0017] Furthermore, the electrode thin needle, the electrode needle housing, and the threaded holes of the electrode ring base are all provided in number.

[0018] Furthermore, the shape of the electrode thin needle is conical to optimize the distribution of the electromagnetic field, which is used to improve the uniformity and adhesion of the paint.

[0019] Furthermore, the electrode needle housing is made of an alloy material with high temperature resistance and corrosion resistance.

[0020] Furthermore, a nylon gasket is provided inside the screw cap to provide additional insulation and prevent accidental current leakage.

[0021] Furthermore, the conductive spring is made of an alloy material with high voltage tolerance and high elasticity, which is used to maintain the stability of the electrical connection between the electrode ring base and the electrode needle housing.

[0022] Compared with the prior art, the beneficial effects of the present utility model are:

[0023] By using the conical electrode thin needle, capacitor, and conductive spring, this solution optimizes the electric field distribution, improves the spraying effect, ensures better coating uniformity and paint adhesion, and also improves safety and durability. It has particular technical advantages for spraying workpieces with complex shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective view of the present utility model;

[0025] Figure 2 is a schematic diagram of the internal structure of the present utility model.

[0026] In the figure: 1. Electrode ring base; 2. Electrode needle housing; 3. Electrode fine needle; 4. Capacitor; 5. Screw cap; 6. Touch needle; 7. Conductive spring. Detailed implementation mode

[0027] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than 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 efforts shall fall within the protection scope of the present utility model.

[0028] As Figure 1-2 shown, the high-voltage electrostatic ring for paint spraying includes an electrode ring base 1 and a plurality of electrode needle housings 2. The electrode ring base 1 is a circular ring body, and a plurality of threaded ports are evenly arranged on the top of the electrode ring base 1; a screw cap 5 is arranged at the bottom of the electrode needle housing 2, and the screw cap 5 is threadedly connected to the threaded port on the top of the electrode ring base 1;

[0029] The electrode needle housing 2 is an axisymmetric structure. An electrode fine needle 3 is arranged at the upper end inside the electrode needle housing 2 at its central axis, and a through hole is arranged at the center of the top of the electrode needle housing 2 to cooperate with the electrode fine needle 3;

[0030] A capacitor 4 is arranged at the bottom of the electrode fine needle 3 inside the electrode needle housing 2. The top of the capacitor 4 is electrically connected to the bottom of the electrode fine needle 3, and the lower end of the capacitor 4 passes through the bottom wall of the electrode needle housing 2 and is located inside the screw cap 5;

[0031] Conductive springs 7 are fixedly arranged inside the electrode ring base 1 below the threaded ports. The top of the conductive spring 7 is fixedly connected to a touch needle 6, and the top of the touch needle 6 is fixed on the bottom wall of the threaded port in the electrode ring base 1.

[0032] Preferably, the bottom of the capacitor 4 is flush with the bottom of the screw cap 5. When the screw cap 5 is threadedly connected to the electrode ring base 1, the bottom of the capacitor 4 is electrically connected to the touch needle 6.

[0033] Preferably, the outer side wall of the electrode ring base 1 is provided with threads for facilitating the installation of the electrode ring base 1 at the nozzle of the spraying device.

[0034] Preferably, the number of the electrode fine needles 3, the electrode needle housings 2, and the threaded holes of the electrode ring base 1 are all 8.

[0035] Preferably, the shape of the electrode fine needle 3 is a cone for optimizing the distribution of the electromagnetic field, which is used to improve the uniformity and adhesion of the paint.

[0036] Preferably, the electrode needle housing 2 is made of an alloy material that is resistant to high temperatures and corrosion.

[0037] Preferably, a nylon gasket is provided inside the screw cap 5 to provide additional insulation and prevent accidental current leakage.

[0038] Preferably, the conductive spring 7 is made of an alloy material with high voltage tolerance and high elasticity, and is used to maintain the stability of the electrical connection between the electrode ring base 1 and the electrode needle housing 2.

[0039] Working principle:

[0040] At the start of the spraying operation, the high-voltage power supply is activated, and high voltage is transmitted to the capacitor 4 through the conductive spring 7 and the contact needle 6. Subsequently, the capacitor 4 steadily releases electrical energy to the electrode fine needle 3, and the electrode fine needle 3 then generates a uniform electrostatic field. When the paint passes through this electrostatic field, the paint particles are effectively charged and attracted to the grounded workpiece surface, forming a uniform and highly adherent coating.

[0041] The traditional high-voltage electrostatic ring for paint spraying is a device that charges paint particles through a high-voltage power supply and uses the principle of opposite charges to make the paint particles adhere to the workpiece, improving the painting efficiency and adhesion. However, in this solution, by using the conical electrode fine needle 3, the capacitor 4, and the conductive spring 7, the electric field distribution is optimized, the spraying effect is improved, while ensuring better coating uniformity and paint adhesion, the safety and durability are also enhanced, especially for spraying workpieces with complex shapes, which has more technical advantages.

[0042] The above embodiments are only used to illustrate the technical method of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. High-voltage electrostatic ring for paint spraying, characterized in that, It includes an electrode ring base (1) and a number of electrode needle housings (2). The electrode ring base (1) is a toroidal body, and a number of threaded ports are evenly arranged on the top of the electrode ring base (1); a rotary cover (5) is provided at the bottom of the electrode needle housing (2), and the rotary cover (5) is threadedly connected to the threaded port on the top of the electrode ring base (1). The electrode needle housing (2) is an axisymmetric structure. An electrode fine needle (3) is arranged at the upper end inside the electrode needle housing (2) at its central axis, and a through hole is provided at the center of the top of the electrode needle housing (2) to cooperate with the electrode fine needle (3). A capacitor (4) is arranged at the bottom of the electrode fine needle (3) inside the electrode needle housing (2). The top of the capacitor (4) is electrically connected to the bottom of the electrode fine needle (3), and the lower end of the capacitor (4) passes through the bottom wall of the electrode needle housing (2) and is located inside the rotary cover (5). Conductive springs (7) are fixedly arranged below the threaded ports inside the electrode ring base (1). A contact needle (6) is fixedly connected to the top of the conductive spring (7), and the top of the contact needle (6) is fixed on the bottom wall of the threaded port in the electrode ring base (1).

2. The high-voltage electrostatic ring for paint spraying according to claim 1, wherein The bottom of the capacitor (4) is flush with the bottom of the rotary cover (5). When the rotary cover (5) is threadedly connected to the electrode ring base (1), the bottom of the capacitor (4) is electrically connected to the contact needle (6).

3. The high-voltage electrostatic ring for paint spraying according to claim 2, characterized in that, A thread is provided on the outer side wall of the electrode ring base (1) to facilitate the installation of the electrode ring base (1) at the nozzle of the spraying device.

4. The high-voltage electrostatic ring for paint spraying according to claim 3, wherein The number of the electrode fine needles (3), the electrode needle housings (2), and the threaded holes of the electrode ring base (1) are all eight (8).

5. The high-voltage electrostatic ring for paint spraying according to claim 4, characterized in that, The shape of the electrode fine needle (3) is conical to optimize the distribution of the electromagnetic field, which is used to improve the uniformity and adhesion of the paint.

6. The high-voltage electrostatic ring for paint spraying according to claim 5, wherein The electrode needle housing (2) is made of an alloy material with high temperature resistance and corrosion resistance.

7. The high-voltage electrostatic ring for paint spraying according to claim 6, characterized in that, A nylon gasket is provided inside the rotary cover (5) to provide additional insulation and prevent accidental current leakage.

8. The high-voltage electrostatic ring for paint spraying according to claim 7, characterized in that, The conductive spring (7) is made of an alloy material with high voltage tolerance and high elasticity, which is used to maintain the stability of the electrical connection between the electrode ring base (1) and the electrode needle housing (2).

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