CN219356589U

CN219356589U - Plasma cleaning machine nozzle, spray gun and cleaning machine

Info

Publication number: CN219356589U
Application number: CN202223387801.7U
Authority: CN
Inventors: 李名枝
Original assignee: Shenzhen Senguan Intelligent Equipment Co ltd
Current assignee: Shenzhen Senguan Intelligent Equipment Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-07-18
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to the technical field of cleaning equipment, in particular to a plasma cleaning machine nozzle, a spray gun and a cleaning machine, wherein the plasma cleaning machine nozzle comprises a nozzle main body, and an air inlet, an air inlet channel, an eccentric channel and an air jet hole are arranged on the nozzle main body; the air inlet is arranged on the upper end surface of the nozzle main body, and the air spraying hole is arranged on the lower end surface of the nozzle main body; the air inlet channel is funnel-shaped, and the opening at the upper end of the air inlet channel is larger than the opening at the lower end of the air inlet channel; the upper end of the air inlet channel is connected with the air inlet, the lower end of the air inlet channel is smoothly connected with the upper end of the eccentric channel, the lower end of the eccentric channel is connected with the air spraying hole, and the eccentric channel is transited to the air spraying hole from the lower end of the air inlet channel to tangential deviation of the nozzle main body. According to the embodiment of the utility model, the funnel-shaped air inlet channel with the smooth inner wall is arranged, so that the resistance of the high-pressure air flow of the plasma gas to the inner wall of the channel is reduced when the high-pressure air flow passes through the channel, the air pressure during spraying is enhanced, and the plasma cleaning spray head has wider treatment area and better effect on the surface of a workpiece.

Description

Plasma cleaning machine nozzle, spray gun and cleaning machine

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a nozzle, a spray gun and a cleaning machine of a plasma cleaning machine.

Background

In order to obtain good material surface adhesion before workpiece surface treatment, a common treatment mode is that plasma is adopted for surface cleaning treatment, wherein the plasma is an ionized gas-like substance consisting of positive and negative ions generated after ionization of atomic groups with partial electrons being deprived, the plasma is a good conductor, and the electromagnetic force is used for controlling the plasma to be sprayed to the workpiece surface through a spray head of a treatment device so as to achieve the treatment purpose.

In order to have larger processing area when processing the surface of a workpiece, the utility model patent with publication number of CN217369580U designs the spray head into a rotatable structure, and enables the high-pressure air flow to push the spray head to rotate automatically through a specific connecting channel and an eccentric channel arranged in the spray head, thereby increasing the coverage area after the plasma gas is sprayed out.

However, as shown in fig. 1 of the attached drawings, the shape of the connecting channel in the nozzle body of the plasma cleaning nozzle provided by the patent has corners, so that the high-pressure gas flow of the plasma gas directly strikes the inner wall of the channel at the corners, and a certain obstruction is formed on the high-pressure gas flow of the plasma gas flowing through the connecting channel, so that most of kinetic energy is converted into power for pushing the nozzle body to rotate when the high-pressure gas flow passes through the connecting channel, the air pressure of the high-pressure gas flow is reduced during spraying, the spraying distance of the ion gas is shortened, the spraying area is reduced, and the treatment effect of the plasma cleaning nozzle on the surface of a workpiece is affected.

Disclosure of Invention

The utility model aims to provide a nozzle of a plasma cleaning machine, a spray gun and a cleaning machine, which are used for enhancing the air pressure of plasma gas during spraying and improving the treatment effect of a plasma cleaning spray head on the surface of a workpiece.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a nozzle of a plasma cleaning machine comprises a nozzle main body, wherein an air inlet, an air inlet channel, an eccentric channel and an air jet hole are arranged on the nozzle main body;

the air inlet is arranged on the upper end face of the nozzle main body, the air spraying hole is arranged on the lower end face of the nozzle main body, the center of the air inlet is positioned on the central axis of the nozzle main body, and the position of the air spraying hole deviates from the central axis of the nozzle main body;

the air inlet channel is funnel-shaped, and the opening at the upper end of the air inlet channel is larger than the opening at the lower end of the air inlet channel;

the upper end of the air inlet channel is connected with the air inlet, the lower end of the air inlet channel is smoothly connected with the upper end of the eccentric channel, the lower end of the eccentric channel is connected with the air spraying hole, and the eccentric channel is transited to the air spraying hole from the lower end of the air inlet channel to tangential deviation of the nozzle main body.

Preferably, the axis of the air inlet channel and the axis of the eccentric channel form an included angle of 90-180 degrees.

Preferably, a notch is provided on one side of the nozzle body.

Preferably, the upper end face of the nozzle body is provided with a plurality of threaded connection holes, and the plurality of threaded connection holes are uniformly distributed around the axis of the nozzle body.

Preferably, the cross-sectional area of the eccentric passage decreases sequentially from the upper end to the lower end.

Preferably, the lower end surface of the nozzle body is provided with a horn-shaped groove, and the air injection hole is positioned at one side of the periphery of the groove.

Preferably, the nozzle body is manufactured using an integral molding process.

Preferably, the material of the nozzle body is titanium alloy.

The spray gun comprises a spray gun main body, a spray gun rod, a spray head and a plasma cleaning machine nozzle, wherein the plasma cleaning machine nozzle is connected with the spray head, the spray head is connected with one end of the spray gun rod, and the other end of the spray gun rod is connected with the spray gun main body.

A cleaning machine comprises the spray gun.

Compared with the prior art, the utility model has the beneficial effects that:

1. through setting up the smooth funnel form air inlet channel of inner wall, replace the straight and more connecting channel in turning of original shape, make the high-pressure air current of plasma gas receive the resistance of passageway inner wall when passing through the passageway and reduce, strengthened the atmospheric pressure when spouting, make the plasma wash shower nozzle to the processing area of work piece surface wider, the effect better.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

fig. 1 is a schematic structural view of a connection channel of a nozzle of a plasma cleaning machine according to the utility model of publication number CN 217369580U;

FIG. 2 is a schematic view of a nozzle of a plasma cleaning machine according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a nozzle of a plasma cleaning machine according to the present utility model;

FIG. 4 is a schematic perspective view of a nozzle of a plasma cleaning apparatus according to the present utility model;

fig. 5 is a schematic perspective view of a nozzle of a plasma cleaning machine according to the present utility model.

Reference numerals: 10. an air inlet; 20. an air intake passage; 30. an eccentric channel; 40. a gas injection hole; 50. a notch; 60. a threaded connection hole; 70. a groove.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and furthermore, the terms "first", "second", "third", "up, down, left, right", etc. are used for descriptive purposes only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing positional relationships in the drawings are only for exemplary illustration, and should not be construed as limiting, indicating or implying relative importance to the present patent, and the specific meanings of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances. Meanwhile, in the description of the present utility model, unless explicitly stated and defined otherwise, the terms "connected", "connected" and "connected" should be interpreted broadly, and for example, may be fixedly connected, detachably connected, or integrally connected; the mechanical connection and the electrical connection can be adopted; all other embodiments, which may be directly or indirectly through intermediaries, which may be obtained by a person of ordinary skill in the art without inventive effort based on the embodiments of the present utility model are within the scope of the present utility model.

The implementation of the present utility model will be described in detail below with reference to specific embodiments.

As shown in fig. 2-5, embodiments provided for by the present utility model.

The embodiment of the utility model provides a nozzle of a plasma cleaning machine, which comprises a nozzle main body, wherein an air inlet 10, an air inlet channel 20, an eccentric channel 30 and an air jet hole 40 are arranged on the nozzle main body; the air inlet 10 is arranged on the upper end surface of the nozzle body, the air spraying hole 40 is arranged on the lower end surface of the nozzle body, the center of the air inlet 10 is positioned on the central axis of the nozzle body, and the position of the air spraying hole 40 deviates from the central axis of the nozzle body; the air inlet channel 20 is funnel-shaped, and the opening at the upper end of the air inlet channel is larger than the opening at the lower end of the air inlet channel; the upper end of the air inlet channel 20 is connected with the air inlet 10, the lower end of the air inlet channel 20 is smoothly connected with the upper end of the eccentric channel 30, the lower end of the eccentric channel 30 is connected with the air injection hole 40, and the eccentric channel 30 is transited to the air injection hole 40 from the tangential deviation of the lower end of the air inlet channel 20 to the nozzle body.

In the embodiment of the present utility model, the high pressure gas flow of the plasma gas enters the nozzle body from the gas inlet 10, enters the eccentric passage 30 through the gas inlet passage 20, and finally is ejected from the gas ejection holes 40; specifically, the eccentric channel 30 is formed by transferring tangential deviation from the lower end of the air inlet channel 20 to the air injection hole 40 from the lower end of the air inlet channel 20 to the nozzle body, as shown in fig. 4 and 5, the lower end of the eccentric channel 30 is offset relative to the upper end, both in the radial direction and the axial direction of the nozzle body, and also in the tangential direction, when high-pressure air enters from the air inlet 10, passes through the air inlet channel 20 and then is injected out through the air injection hole 40 from the air inlet channel 20, the air has both radial and axial component force and tangential component force in the eccentric channel 30, when the air passes through the eccentric channel 30 and the air inlet channel 20, the curved inner wall at the joint of the two channels forms a certain resistance to the air flow, and the air flow also generates a reverse thrust to the inner wall at the joint, so that the radial component force can push the nozzle body to rotate around the central axis of the nozzle body, in order to enhance the air flow pressure sprayed out from the air injection hole 40 at the same time, the joint of the eccentric channel 30 and the air inlet channel 20 is set to reduce the resistance formed by the inner wall at the joint of the two channels, and the funnel-shaped air inlet channel 20 can enhance the air flow into the air flow, and the air flow can be sprayed out more smoothly when the air flow is blown out from the surface of the air inlet channel more than the air flow, and the surface is better, and the workpiece more better pressure is sprayed out surface more than better.

In one embodiment, the axis of the intake passage 20 is at an angle of 90-180 from the axis of the eccentric passage 30.

In the present embodiment, in order to make the gas flow in an outwardly diffused state when finally ejected from the gas ejection holes 40, the axis of the gas inlet passage 20 is set to be 90 to 180 ° with respect to the axis of the eccentric passage 30 to increase the ejection range of the plasma gas when the nozzle body rotates.

In one embodiment, the cross-sectional area of the eccentric channel 30 decreases sequentially from the upper end to the lower end.

In the present embodiment, the eccentric passage 30 is gradually narrowed from the upper end to the lower end, so that the pressure is stronger and the ejection distance is longer when the plasma gas is ejected.

In one embodiment, a notch 50 is provided in one side of the nozzle body.

In this embodiment, since the air inlet channel 20 and the eccentric channel 30 deviating from the central axis are formed on the nozzle body, the mass around the rotating shaft of the nozzle body is uneven, in order to make the rotating shaft of the nozzle body in a static state or rotate at a constant speed when the nozzle body rotates, the weight of the air inlet channel 20 and the eccentric channel 30 is reduced in the portion where the notch 50 is cut out at the other side of the central axis of the nozzle body, so that the mass at two sides of the rotating shaft returns to the same state, that is, the rotating shaft of the nozzle body coincides with the central axis of the nozzle body, and the rotation balance is achieved.

In one embodiment, the upper end surface of the nozzle body is provided with a plurality of screw-threaded holes 60, and the plurality of screw-threaded holes 60 are uniformly distributed around the axis of the nozzle body.

In this embodiment, in order to facilitate connection of the nozzle body to a bearing or other rotating mechanism, three threaded connection holes 60 are provided on the upper end surface of the nozzle body, however, other numbers of threaded connection holes 60 may be provided for connection, and it is understood that, no matter how many threaded connection holes 60 are provided, all the threaded connection holes 60 are uniformly distributed around the rotating shaft, so as to avoid affecting the rotation balance of the nozzle body.

In one embodiment, the lower end surface of the nozzle body is provided with a trumpet-shaped groove 70, and the gas injection holes 40 are located at the outer peripheral side of the groove 70.

In this embodiment, in order to enhance the heat dissipation effect of the nozzle of the plasma cleaning machine during operation, the middle part of the lower end surface of the nozzle body is recessed downwards to form a horn-shaped groove 70, after the materials of the groove 70 are removed, the nozzle body becomes lighter, and the contact area between the surface of the nozzle body and the air is increased, so that the heat dissipation effect is improved during operation; the gas injection holes 40 are located at the periphery of the recess 70 so that the gas expands more during injection and the process area is larger.

In one embodiment, the nozzle body is formed using an integral molding process.

In the embodiment, the integral molding process is adopted to manufacture the nozzle body, so that the strength of the nozzle body is not easily influenced, and the nozzle body is convenient to install and more durable.

In one embodiment, the nozzle body is made of titanium alloy.

In the embodiment, the titanium alloy material can reduce the weight of the nozzle body while ensuring the strength of the nozzle body, so that the nozzle body is easier to be pushed by the thrust generated by high-pressure air flow to rotate, and the effect is better than that of stainless steel materials.

The embodiment of the utility model also provides a spray gun, which comprises a spray gun main body, a spray gun rod, a spray head and a plasma cleaning machine nozzle, wherein the plasma cleaning machine nozzle is connected with the spray head, the spray head is connected with one end of the spray gun rod, and the other end of the spray gun rod is connected with the spray gun main body.

The embodiment of the utility model also provides a cleaning machine comprising the spray gun.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The nozzle of the plasma cleaning machine comprises a nozzle main body and is characterized in that an air inlet (10), an air inlet channel (20), an eccentric channel (30) and an air jet hole (40) are arranged on the nozzle main body;

the air inlet (10) is arranged on the upper end face of the nozzle main body, the air injection hole (40) is arranged on the lower end face of the nozzle main body, the center of the air inlet (10) is positioned on the central axis of the nozzle main body, and the position of the air injection hole (40) deviates from the central axis of the nozzle main body;

the air inlet channel (20) is funnel-shaped, and the opening at the upper end of the air inlet channel is larger than the opening at the lower end of the air inlet channel;

the upper end of the air inlet channel (20) is connected with the air inlet (10), the lower end of the air inlet channel (20) is smoothly connected with the upper end of the eccentric channel (30), the lower end of the eccentric channel (30) is connected with the air injection hole (40), and the eccentric channel (30) is transited to the air injection hole (40) from the lower end of the air inlet channel (20) to tangential deviation of the nozzle main body.

2. The plasma cleaning machine nozzle according to claim 1, characterized in that the axis of the inlet channel (20) is at an angle of 90 ° -180 ° to the axis of the eccentric channel (30).

3. The plasma cleaning machine nozzle according to claim 1, characterized in that one side of the nozzle body is provided with a gap (50).

4. The plasma cleaning machine nozzle according to claim 1, characterized in that the upper end surface of the nozzle body is provided with a number of threaded connection holes (60), the number of threaded connection holes (60) being evenly distributed around the axis of the nozzle body.

5. The plasma cleaning machine nozzle according to claim 1, characterized in that the cross-sectional area of the eccentric channel (30) decreases in sequence from the upper end to the lower end.

6. The plasma cleaning machine nozzle according to claim 1, characterized in that the lower end surface of the nozzle body is provided with a horn-shaped groove (70), and the gas ejection hole (40) is located at the peripheral side of the groove (70).

7. The plasma cleaning machine nozzle of claim 1, wherein said nozzle body is formed using an integral molding process.

8. The plasma cleaning machine nozzle of claim 1, wherein the nozzle body is made of titanium alloy.

9. A spray gun, characterized by comprising a spray gun main body, a spray gun rod, a spray head and the plasma cleaning machine nozzle according to any one of claims 1-8, wherein the plasma cleaning machine nozzle is connected with the spray head, the spray head is connected with one end of the spray gun rod, and the other end of the spray gun rod is connected with the spray gun main body.

10. A cleaning machine comprising the spray gun of claim 9.