Spray head of plasma surface treatment machine

Abstract

The utility model relates to a spray head of a plasma surface treatment machine, which comprises a spray head body, one end of the spray head body is provided with a plasma inlet, one end of the spray head body opposite to the plasma inlet is provided with a plasma outlet on one side of a rotating axis, and the plasma outlet does circular motion when the spray head body rotates. The spray head is characterized in that at least one plasma compensation outlet is formed in the side, facing the rotating axis, of the plasma outlet of the spray head body, the plasma compensation outlet is communicated with a plasma compensation channel, and the plasma compensation channel is communicated with the connecting channel. The plasma compensation outlet is additionally arranged on one side of the plasma outlet, compensation processing on the inner side is added, and processing is uniform.

Description

Technical Field

[0001] This utility model relates to the field of plasma surface treatment machines, and specifically to a nozzle for a plasma surface treatment machine. Background Technology

[0002] Plasma surface treatment machines consist of a plasma generator, gas delivery pipelines, and plasma nozzles. The plasma generator produces high-voltage, high-frequency energy, which is activated and controlled in the nozzle's steel pipe to generate low-temperature plasma through glow discharge. Compressed air propels the plasma onto the workpiece surface. When the plasma encounters the surface of the object being treated, changes and chemical reactions occur. The surface is cleaned, removing hydrocarbon contaminants such as grease and additives. It may also create an etched, roughened surface, form a dense cross-linked layer, or introduce oxygen-containing polar groups (hydroxyl and carboxyl groups). These groups promote the adhesion of various coating materials, optimizing bonding and painting applications. With the same effect, plasma treatment can produce very thin, high-tensile coatings, which are beneficial for bonding, coating, and printing. No other machines or chemical treatments are needed to enhance adhesion. As plasma surface treatment machines become more widely used in the market, the products requiring surface treatment are becoming increasingly diverse, including glass and circuit boards.

[0003] Existing plasma surface treatment machines use nozzles such as the one disclosed in application number CN202123177348.2, which includes a nozzle body with a plasma inlet and a plasma outlet. To meet the processing area requirements, the nozzle is enlarged accordingly to meet the processing needs of large-area products. However, as the nozzle is enlarged, the energy of the plasma outlet to the inside of the plasma outlet is weakened, resulting in uneven processing inside the plasma outlet. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to address the shortcomings of the prior art by providing a nozzle for a plasma surface treatment machine, which adds a plasma compensation outlet on one side of the plasma outlet to increase compensation treatment on the inner side, thereby making the treatment more uniform.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nozzle for a plasma surface treatment machine, comprising a nozzle body, a plasma inlet at one end of the nozzle body, and a plasma outlet on the side of the nozzle body opposite the plasma inlet at the axis of rotation. The plasma outlet makes a circular motion when the nozzle body rotates, and the plasma outlet is connected to the plasma inlet through a connecting channel. The feature is that: the nozzle body has at least one plasma compensation outlet on the side of the plasma outlet facing the axis of rotation, and the plasma compensation outlet is connected to a plasma compensation channel, which is connected to the connecting channel.

[0006] The present invention, possessing the above-mentioned features, involves the following: After the nozzle body is connected to the equipment, plasma enters the connecting channel through the plasma inlet. A portion of the plasma within the connecting channel is then ejected from the plasma outlet. A portion passes through the plasma compensation channel and is ejected from the plasma compensation outlet, located on the side of the plasma outlet facing the rotation axis of the nozzle body. As the nozzle body rotates, the plasma outlet and the plasma compensation outlet undergo circular motion. The plasma compensation outlet compensates for the weaker areas on the side of the plasma outlet facing the rotation axis of the nozzle body, ensuring uniform treatment. The plasma compensation channel is connected to the connecting channel, causing the plasma compensation channel to deflect towards the rotation axis of the nozzle body. This means the plasma ejected from the plasma compensation outlet is sprayed towards the rotation axis of the nozzle body, further increasing the compensation treatment area.

[0007] A further feature of this invention is that when there are two or more plasma compensation outlets, the plasma compensation outlets are arranged sequentially on the side of the plasma outlets facing the rotation axis of the nozzle body, and each plasma compensation outlet is connected to a plasma compensation channel, and each plasma compensation channel is connected to a connecting channel.

[0008] The present invention, which has the above-mentioned features, is provided with two or more plasma compensation outlets, which can ensure uniform treatment even after further increasing the diameter of the nozzle body.

[0009] A further feature of this invention is that the nozzle body includes a connecting seat and two side plates disposed opposite to one end of the connecting seat. The side plates are V-shaped and symmetrically disposed on the connecting seat. The plasma inlet is disposed on the connecting seat. The connecting channel passes through either side plate to the connecting seat and communicates with the plasma inlet. The plasma outlet is disposed on the corresponding side plate and communicates with the connecting channel. The plasma compensation outlet is disposed on the side plate of the corresponding side plate on the side where the plasma outlet faces the rotation axis of the connecting seat. The plasma compensation channel communicates with the connecting channel. A mounting seat is provided at the center of the connecting seat at one end opposite to the side plate. The mounting seat has an opening that communicates with the plasma inlet.

[0010] The present invention, which has the above-mentioned features, is lighter and reduces rotational load compared to the traditional frustum-shaped nozzle body, which is symmetrically arranged on the side plate of the connecting seat.

[0011] A further feature of this invention is that the connecting channel includes a conveying section, a contracting section, and a connecting section coaxially connected. One end of the conveying section is connected to the plasma inlet. The contracting section is frustoconical in shape. The diameter of the larger diameter end of the contracting section is the same as the diameter of the conveying section relative to the plasma inlet, and the larger diameter end of the contracting section is connected to the conveying section relative to the plasma inlet. The diameter of the smaller diameter end of the contracting section is the same as the diameter of the connecting section, and the smaller diameter end of the contracting section is connected to the connecting section. The diameter of the connecting section is the same as the diameter of the plasma outlet, and the connecting section relative to the contracting section is connected to the plasma outlet. The plasma compensation channel is connected to the contracting section.

[0012] The present invention, which has the above-mentioned features, has a reduced diameter of the contraction section, which makes the plasma kinetic energy ejected from the plasma outlet and the plasma compensation outlet stronger.

[0013] A further feature of this invention is that the side plate without a plasma outlet is provided with a weight balancing groove, and the two side plates have the same weight.

[0014] The present invention, which has the above-mentioned features, has a weight balancing tank that can balance the weight reduction caused by the installation of a plasma outlet, a plasma compensation outlet, a connecting channel, and a plasma compensation channel on the other side plate.

[0015] A further feature of this invention is that a suitable cover is detachably provided around the side plate.

[0016] A further feature of this invention is that the cover is frustoconical in shape, and the cover has an inner cavity that can accommodate two side plates. The two ends of the cover are respectively provided with openings that communicate with the inner cavity, and the smaller diameter opening is threadedly connected to the connecting seat.

[0017] The present invention with the above features: the nozzle body rotates at high speed, the V-shaped side plate has a safety hazard, and the cover can separate the nozzle body and eliminate the safety hazard.

[0018] The beneficial effects of this utility model are: by adding a plasma compensation outlet, the weak part of the plasma outlet facing the rotation axis of the nozzle body is compensated, so that the treatment is uniform.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the present utility model. Figure 1 .

[0021] Figure 2 This is a three-dimensional schematic diagram of an embodiment of the present utility model. Figure 2 .

[0022] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0023] Figure 4 This is a perspective view of an embodiment of the present invention with the cover removed. Detailed Implementation

[0024] like Figure 1 —— Figure 4The nozzle of a plasma surface treatment machine, as shown, includes a nozzle body 1. One end of the nozzle body 1 has a plasma inlet 2, and the other end of the nozzle body 1 opposite the plasma inlet 2 has a plasma outlet 3 on the side facing the rotation axis. The plasma outlet 3 rotates in a circular motion when the nozzle body 1 rotates. The plasma outlet 3 is connected to the plasma inlet 2 via a connecting channel 4. The nozzle body 1 has at least one plasma compensation outlet 5 on the side of the plasma outlet 3 facing the rotation axis. The plasma compensation outlet 5 is connected to a plasma compensation channel 6, which is connected to the connecting channel 4. When there are two or more plasma compensation outlets 5, each plasma compensation outlet 5 is located on the side of the plasma outlet 3 facing the rotation axis of the nozzle body 1 and rotates towards the nozzle body 1. The nozzle body 1 is arranged in a series of axes. Each plasma compensation outlet 5 is connected to a plasma compensation channel 6, and each plasma compensation channel 6 is connected to a connecting channel 4. The nozzle body 1 includes a connecting seat 101 and side plates 102 opposite to one end of the connecting seat 101. The side plates 102 are V-shaped and symmetrically arranged on the connecting seat 101. The plasma inlet 2 is located on the connecting seat 101. The connecting channel 4 passes through any side plate 102 to the connecting seat 101 and connects to the plasma inlet 2. The plasma outlet 3 is connected to the connecting channel 4 and is located on the corresponding side plate 102. The plasma compensation outlet 5 is located on the side of the corresponding side plate 102 where the plasma outlet 3 faces the rotation axis of the connecting seat 101. The plasma compensation channel 6 is connected to the connecting channel 4. The connecting channel 4 includes a mounting base 7 at the center of the connecting base 101 opposite to the side plate 102. The mounting base 7 has an opening 701 that communicates with the plasma inlet 2. The connecting channel 4 includes a conveying section 401, a contraction section 402, and a connecting section 403 that are coaxially connected. One end of the conveying section 401 communicates with the plasma inlet 2. The contraction section 402 is frustoconical. The diameter of the larger diameter end of the contraction section 402 is the same as the diameter of the end of the conveying section 401 opposite to the plasma inlet 2, and the larger diameter end of the contraction section 402 communicates with the end of the conveying section 401 opposite to the plasma inlet 2. The smaller diameter end of the contraction section 402 has the same diameter as the diameter of the connecting section 403, and the smaller diameter end of the contraction section 402 communicates with the end of the connecting section 403. The diameter of the connecting part 403 is the same as that of the plasma outlet 3. One end of the connecting part 403 is connected to the plasma outlet 3 relative to the contraction part 402. The plasma compensation channel 6 is connected to the contraction part 402. The side plate 402 without the plasma outlet 3 is provided with a weight balancing groove 8. The two side plates 102 have the same weight. A suitable cover 9 is detachably provided around the side plate 102. The cover 9 is frustoconical in shape. The cover 9 has an inner cavity 901 that can accommodate the two side plates 102. The inner wall of the inner cavity 901 fits and abuts against the side of the side plate 102 away from the rotation axis of the connecting seat 101. The two ends of the cover 9 are respectively provided with openings that communicate with the inner cavity 901. The smaller diameter opening is threadedly connected to the connecting seat 101. The outer surface of each side plate 102 can also be provided with a weight-reducing groove to further reduce weight.When setting up the weight-reducing groove, the weight of the two side plates needs to be balanced. The weight-reducing groove is not shown in the diagram.

Claims

1. A nozzle for a plasma surface treatment machine, comprising a nozzle body, a plasma inlet at one end of the nozzle body, and a plasma outlet on one side of the nozzle body opposite the plasma inlet along a rotation axis, the plasma outlet rotating in a circular motion when the nozzle body rotates, the plasma outlet being connected to the plasma inlet via a connecting channel, characterized in that: The nozzle body has at least one plasma compensation outlet on the side of the plasma outlet facing the rotation axis. The plasma compensation outlet is connected to a plasma compensation channel, and the plasma compensation channel is connected to a connecting channel.

2. The nozzle of a plasma surface treatment machine according to claim 1, characterized in that: When there are two or more plasma compensation outlets, the plasma compensation outlets are arranged sequentially on the side of the plasma outlet facing the rotation axis of the nozzle body, and each plasma compensation outlet is connected to a plasma compensation channel, and each plasma compensation channel is connected to a connecting channel.

3. The nozzle of a plasma surface treatment machine according to claim 1 or 2, characterized in that: The nozzle body includes a connecting seat and two side plates disposed opposite each other at one end of the connecting seat. The side plates are V-shaped and symmetrically disposed on the connecting seat. The plasma inlet is disposed on the connecting seat. The connecting channel passes through either side plate to the connecting seat and communicates with the plasma inlet. The plasma outlet is disposed on the corresponding side plate and communicates with the connecting channel. The plasma compensation outlet is disposed on the side plate on which the plasma outlet faces the rotation axis of the connecting seat. The connecting seat has a mounting base at the center of the connecting seat at the end opposite the side plate. The mounting base has an opening that communicates with the plasma inlet.

4. The nozzle of a plasma surface treatment machine according to claim 1 or 2, characterized in that: The connecting channel includes a conveying section, a contraction section, and a connecting section coaxially connected. One end of the conveying section is connected to the plasma inlet. The contraction section is frustoconical in shape. The diameter of the larger diameter end of the contraction section is the same as the diameter of the conveying section relative to the plasma inlet, and the larger diameter end of the contraction section is connected to the conveying section relative to the plasma inlet. The diameter of the smaller diameter end of the contraction section is the same as the diameter of the connecting section, and the smaller diameter end of the contraction section is connected to the connecting section. The diameter of the connecting section is the same as the diameter of the plasma outlet, and the connecting section relative to the contraction section is connected to the plasma outlet. The plasma compensation channel is connected to the contraction section.

5. The nozzle of a plasma surface treatment machine according to claim 3, characterized in that: The connecting channel includes a conveying section, a contraction section, and a connecting section coaxially connected. One end of the conveying section is connected to the plasma inlet. The contraction section is frustoconical in shape. The diameter of the larger diameter end of the contraction section is the same as the diameter of the conveying section relative to the plasma inlet, and the larger diameter end of the contraction section is connected to the conveying section relative to the plasma inlet. The diameter of the smaller diameter end of the contraction section is the same as the diameter of the connecting section, and the smaller diameter end of the contraction section is connected to the connecting section. The diameter of the connecting section is the same as the diameter of the plasma outlet, and the connecting section relative to the contraction section is connected to the plasma outlet. The plasma compensation channel is connected to the contraction section.

6. The nozzle of a plasma surface treatment machine according to claim 3, characterized in that: The side plate without a plasma outlet is equipped with a weight balancing groove, and the two side plates have the same weight.

7. The nozzle of a plasma surface treatment machine according to claim 6, characterized in that: A suitable cover is detachably provided around the side panel.

8. The nozzle of a plasma surface treatment machine according to claim 7, characterized in that: The cover is truncated cone-shaped and has an inner cavity that can accommodate two side plates. Both ends of the cover have openings that communicate with the inner cavity. The smaller diameter opening is threadedly connected to the connecting seat.

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