Portable plasma generator with wire feeding mechanism

Abstract

According to the portable plasma generator with the wire feeding mechanism, a plasma generating module and a wire feeding module are integrated, the wire feeding module is installed above the plasma generating module, and the portable plasma generator is provided with a handheld handle and is convenient to carry. The plasma generation module comprises a plasma generator and an installation box body of the plasma generator. The plasma generator is composed of a cathode base, a middle insulation sleeve, a front cannon cover, a front plate cover and the like which are fixed through bolts or connected through threads, and a cooling water channel is designed in the plasma generator. The wire feeding module is provided with a wire feeding wheel, a wire pressing wheel and a guide wheel which are driven by a wire feeding motor, and is used for accurately controlling the wire path and adjusting the deflection angle of the wire so that the wire can be fed more flexibly. Miniaturization and portability of spraying equipment are achieved, short circuit and arc breaking occurring in a traditional spraying mode are avoided, the stability and precision in the wire feeding process are improved, user experience is improved, and the application range of products is widened.

Description

Technical Field

[0001] The present application relates to the technical field of spraying equipment, and in particular to a portable plasma generator with a wire feeding mechanism. Background Art

[0002] Traditional arc spraying technology uses two wires to short-circuit to generate an arc, melt the wire into droplets, and then spray it onto the surface of the substrate through a high-speed airflow to form a coating. Arc spraying technology has the characteristics of high coating density, simple operation, wide application range, and low cost. It is widely used in aerospace, automobile production, shipbuilding industry, electronics and electrical fields, mainly used to improve the wear resistance, corrosion resistance, high temperature resistance and other properties of materials and equipment. However, the spray gun + wire feeding system used in traditional arc spraying technology makes the system larger as a whole and inconvenient to operate in practice. As the working time increases, the wire feeding fluctuation will inevitably increase, and the arc generated by the wire will become unstable, which will make the atomization effect of the wire droplets worse, and arc breaking will occur, causing the quality of the coating to decline rapidly.

[0003] In the existing technology, Zhang Lixin of Shihezi University proposed a closed-loop high-speed arc spray wire feeder system with wire feeding speed display (patent application number: CN111471951A). The patent proposes to reduce the short circuit and arc breaking phenomena that frequently occur in the traditional arc spraying process by adopting a closed-loop wire feeding method. However, the patent still cannot avoid the short circuit and arc breaking phenomena, and the patented arc spraying equipment adopts the mode of spray gun + wire feeder system, the system volume is large, and the spraying operation process is relatively inconvenient.

[0004] Xia Xiaojian from the Scientific Research Institute of State Grid Fujian Electric Power Co., Ltd. proposed a portable arc spray gun for heterogeneous wires (patent publication application number: CN115369351A). He proposed a spray gun that integrates the spray gun and wire feeder system, which improves the portability and spraying efficiency of the spray gun. However, he did not propose a specific optimization structure for the short circuit and arc breaking phenomena that may occur during the spraying process.

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned technology and propose a portable plasma generator with a wire feeding mechanism, which melts the material through the high-temperature plasma jet generated by the plasma generator, thereby avoiding the short circuit and arc breaking phenomena that occur in traditional arc spraying. At the same time, the spray gun and the wire feeding system are integrated into one, thereby improving the overall portability and work efficiency. Summary of the invention

[0006] The present invention adopts the following technical solutions: A portable plasma generator with a wire feeding mechanism comprises a plasma generating module and a wire feeding module, wherein the wire feeding module is arranged above the plasma generating module; The plasma generator module is composed of a plasma generator and a generator installation box. The plasma generator is installed in the generator installation box. The generator installation box has a through hole on the front wall, so that the plasma generator can be fixed in the vertical direction; the rear wall is a detachable structure, and the rear wall is connected to other walls by screws. The rear wall has three through holes, mainly to expose two cable interfaces and an air inlet interface on the plasma generator; The plasma generator is composed of a cathode seat, a cathode, a cathode head, a rear plate cover, a gas injector, an intermediate insulating sleeve, a front cover, an anode, and a front plate cover; the cathode is embedded in the cathode seat and connected by threads, and a cooling channel is provided in the cathode seat to cool the cathode; the cathode head is embedded in the cathode and adopts an interference fit; the rear plate cover is coaxial with the cathode seat and connected to the intermediate insulating sleeve by screws; the intermediate insulating sleeve is coaxial with the cathode seat, and the two sides are respectively connected to the front cover and the rear plate cover by screws, and a cooling water channel is opened inside the intermediate insulating sleeve, which cooperates with the cooling water channel of the cathode seat, and the two sides of the channel are sealed by sealing rings; the gas injector is coaxial with the cathode, and the two sides of the intermediate insulating sleeve are connected to the cathode seat The anode is in contact with the anode, and the gas injector is provided with an air inlet channel; the anode is coaxial with the front gun cover, and is sealed and connected to the front plate cover and the gas injector on both sides by sealing rings, and is provided with cooling water channels to ensure that the anodes can be cooled; the front gun cover is coaxial with the anode, and is connected to the front plate cover and the middle insulating sleeve on both sides by screws, and its inner side is in electrical contact with the outer side of the anode, and a cooling water outflow channel is provided on the outer side of the front gun cover, and is connected to the water-cooling cable; the front plate cover is coaxial with the anode, and is provided with a threaded hole on one side, and is connected to the front gun cover on the other side by screws, and its inner side is sealed with the annular cooling channel at the end of the anode away from the cathode by a sealing ring to ensure that the cooling water flows out from the cooling water outlet of the front gun cover; The cooling water channels of the plasma generator are: cathode water cooling cable, cathode seat cooling water channel, intermediate insulation sleeve cooling water channel, anode cylindrical section cooling water channel, anode flange section cooling water channel, front running cover cooling water outlet, front gun cover cooling water channel, and anode water cooling cable; The plasma generator air inlet passages are: rear plate cover air inlet passage, middle insulation sleeve air inlet passage, gas jet gas tangential air inlet, and plasma generator arc chamber; The wire feeding module is composed of a box body, a support plate, a wire feeding motor, a wire feeding wheel, a wire pressing wheel, a wire pressing frame, a wire pressing handle and a guide wheel; the lower part of the box body is connected to the plasma generator module, and the support plate is installed in the box body; the output shaft of the wire feeding motor passes through the box body and is connected to the rotating shaft of the wire feeding wheel, and the wire feeding motor is installed on the motor bracket on the back of the box body; the wire feeding wheel is installed on the rotating shaft, and the rotating shaft is connected to the motor output shaft; in order to ensure the stability of wire feeding, a wire feeding guide structure is arranged in front and behind the wire feeding wheel, which is composed of a cylindrical section, a flange section and a conical section, and a wire feeding channel is opened inside; the wire pressing wheel is arranged on the upper side of the wire feeding wheel and is connected to the wire pressing frame through a tin; the wire pressing frame is connected to the support plate through a tin on one side, and contacts with the wire pressing handle on the other side, and it has a fine-tuning function, so that the distance between the wire pressing wheel and the wire feeding wheel can be adjusted to adjust The wire pressing handle is installed on the support plate through a tangent, and the position of the wire pressing frame can be adjusted by rotating the handle, and the distance between the wire pressing wheel and the wire feeding wheel can be further adjusted; there are a total of three guide wheels, and the first guide wheel is installed on the support plate through a support shaft, and is located downstream of the outlet of the wire guiding structure. It is installed below the wire to support the wire; the second guide wheel is installed downstream of the first guide wheel, and is installed above the wire. Since the support plate has a notch at the corresponding position, it and the support shaft can move in the vertical direction of the support plate, and under the action of the first guide wheel and the second guide wheel, the wire can be deflected by a certain angle; the third guide wheel is installed on the protrusion on the outer wall of the right side of the box body, and the protrusion also has a notch, so that it can also move in the vertical direction, so that the deflection angle of the wire can be adjusted more flexibly; The working process of the present invention is as follows: after the working gas is introduced to start the plasma generator, the wire feeding motor is started, and the wire is driven forward by the interaction between the wire feeding wheel and the wire pressing wheel. The wire then passes through the wire guiding structure and enters the guide wheel. With the cooperation of the three guide wheels, the wire is installed at a certain angle and enters the plasma jet.

[0007] Compared with the prior art, the portable plasma generator with wire feeding function disclosed in the present invention has the following beneficial effects: Compared with the traditional arc spraying technology, the plasma generator (spray gun) of the present invention has only a cathode and an anode, and has a simple structure. It can be installed by connecting the whole body with only four bolts. The designed conical section of the cathode head is conducive to generating a stable arc, ensuring the long-term stable operation of the plasma generator. A water-cooled cable is used to realize the supply of electricity and cooling water. All parts can be cooled through the designed cooling water channel. The overall structure has fewer parts and a compact structure.

[0008] Compared with the traditional arc spraying technology, the present invention combines the spray gun and the wire feeding system in a design, and the overall size is small, which is convenient for operation at any time, and can also cooperate with robots to operate in some small space environments; The conventional arc spraying technology uses an arc generated by a short-circuited metal wire to melt the material. The present invention uses a plasma jet generated by a spray gun to melt the material, which can avoid the short-circuit and arc-breaking phenomena of the conventional arc spraying. Moreover, the spraying material used in the present invention is not limited to metal materials, and has a wider range of applications. The present invention is designed with three guide wheels, two of which can move in the vertical direction. The temperature of the ejected plasma jet decreases as the distance from the nozzle increases. By adjusting the wire feeding angle, the temperature of the wire entering the plasma jet can be adjusted, so that the most suitable spraying temperature can be better found, and some materials that can only be sprayed within a certain temperature range can also be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 The overall schematic diagram of a portable plasma generator with a wire feeding function disclosed in the present invention is shown; Figure 2 The present invention shows an overall side view of a portable plasma generator with a wire feeding function; Figure 3 The schematic diagram of the structure of the plasma generator disclosed in the present invention is shown; Figure 4 A planing view of a plasma generator disclosed in the present invention is shown.

[0011] Arc plasma generator 1, generator mounting box 2, generator mounting cover 3, generator mounting box hand-held mounting block 4, wire feeder box 5, motor mounting frame 6, motor 7, coupling 8, rotating shaft 9, wire feeding wheel 10, wire pressing handle 11, wire pressing frame 12, wire pressing wheel 13, wire guide 14, guide wheel 15, support shaft 16, hand-held handle 17, hand screw 18, support plate 019, cathode seat 20, cathode 21, cathode head 22, rear plate cover 23, gas injector 24, intermediate insulating sleeve 25, front gun cover 26, anode 27, front plate cover 28. DETAILED DESCRIPTION

[0012] The present invention is further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0013] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present application disclosed in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0015] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Example

[0016] See also Figure 1 , the present invention discloses a portable plasma generator with wire feeding capability, which comprises: a plasma generating module and a wire feeding module, wherein the wire feeding module is arranged above the generator module; The plasma generating module is composed of a plasma generator and a generator mounting box; See also Figure 3The plasma generator is mainly composed of the following: a cathode seat 20, a cathode 21, a cathode head 22, a rear plate cover 23, a gas injector 24, an intermediate insulating sleeve 25, a front gun cover 26, an anode 27, and a front plate cover 28; the cathode 21 is embedded in the cathode seat 20 and connected by threads, and a cooling channel is provided in the cathode seat 20 to cool the cathode 21; the cathode head 22 is embedded in the cathode and adopts an interference fit; the rear plate cover is coaxial with the cathode seat and connected with the intermediate insulating sleeve by screws; the intermediate insulating sleeve is coaxial with the cathode seat, and the two sides are connected with the front gun cover and the rear plate cover by screws respectively, and a cooling water channel is opened on the inner side thereof, which cooperates with the cooling water channel of the cathode seat, and the two sides of the channel are sealed by sealing rings; the gas The body injector is coaxial with the cathode, and its two sides are in contact with the cathode seat and the anode, and the gas injector is provided with an air intake channel; the anode is coaxial with the front gun cover, and its two sides are sealed and connected with the front plate cover and the gas injector through sealing rings, and a cooling water channel is provided on it to ensure that the anode can be cooled; the front gun cover is coaxial with the anode, and its two sides are connected with the front plate cover and the middle insulating sleeve through screws, and its inner side is in electrical contact with the outer side of the anode, and a cooling water outflow channel is provided on the outer side of the front gun cover, and is connected to the water-cooling cable; the front plate cover is coaxial with the anode, and one side is provided with a threaded hole, and is connected with the front gun cover on the other side through screws, and its inner side is sealed with the annular cooling channel at the end of the anode away from the cathode through a sealing ring, to ensure that the cooling water flows out from the cooling water outlet of the front gun cover; The cathode seat 20 is composed of a cylindrical section and a flange section. The cathode is embedded in the cathode seat 10 mm through a thread on one side close to the anode. A cooling water channel is provided on the other side. The end of the cooling water channel is provided with evenly distributed water outlet holes at a certain angle to the vertical direction to facilitate the cooling water to enter the middle insulating sleeve; The cathode 21 is composed of a cylindrical section and a flange section, and has an external thread on the outside that matches the cathode seat and is in electrical contact with the cathode seat. A 5mm deep hole is opened on the other side of the cathode head 22 for interference fit; The cathode head 22 is composed of a cylindrical section and a conical section with a taper of 60°; The rear plate cover 21 is coaxial with the cathode seat and is cylindrical in shape as a whole. A through hole is provided in the middle to match the cathode seat. There is also an annular protrusion on the inner side. The end face of the protrusion matches the annular protrusion at the corresponding position of the cathode seat to limit the axial position of the cathode seat. A threaded hole of a certain depth is provided on the end face in contact with the middle insulating sleeve 25. An air inlet is provided on the other end face to correspond to the air inlet of the middle insulating sleeve 25. The gas injector 24 is coaxial with the middle insulating sleeve 25 and is composed of a cylindrical section and a flange section. A plurality of evenly distributed tangential air inlet holes are opened on the inner side of the cylindrical section. The outer protruding portion thereof is in close contact with the inner side of the middle insulating sleeve 25, and the outer non-protruding area forms an annular space with the middle insulating sleeve 25. The annular space is for the gas to enter the gas injector evenly. The middle insulating sleeve 25 is square in shape as a whole, with chamfers all around, a through hole on the inside, and a circular protrusion on the inside. The protrusion is provided with evenly distributed cooling water channels, and sealing ring notches are provided on both sides of the protrusion to ensure that the cooling water passing through the cathode seat enters the anode through the cooling water channels. The side in contact with the rear plate cover 21 is provided with an air inlet hole, and the working gas enters the gas injector after passing through the air inlet hole. Four threaded through holes are also provided on the middle insulating sleeve for connecting with the rear plate cover 21 and the front gun cover 26; The front gun cover 26 is coaxial with the anode 27 and is cylindrical in shape. The inner side is a through hole that matches the anode 27, the outer side is provided with a cooling water outlet, and the inner side is provided with a cooling water notch and two notches for installing a sealing ring. After the cooling water of the anode 27 flows into the notch, it flows out through the water outlet of the front gun cover 26. The end of the front gun cover that contacts the front plate cover is provided with four evenly distributed threaded holes for connecting with the intermediate insulating sleeve 25 and the front plate cover 28. Anode 27 is coaxial with the front gun cover and is composed of a cylindrical section, a conical section with a cone angle of 120° and a flange section. The cylindrical section and the flange section are both provided with uniformly distributed cooling water channels. The cooling water from the middle insulating sleeve flows through the cooling water channel of the front cylindrical section to the end of the anode close to the front plate cover, and then flows into the cooling water slot of the front gun cover 26 through the cooling water channel of the flange section. The front plate cover 28 is coaxial with the anode and is cylindrical. A cooling water notch is provided on one side close to the front gun cover 26. The cooling water flowing from the anode cylindrical section to the front plate cover 28 flows through the notch to the cooling water channel of the anode flange section and then enters the cooling water notch of the front gun cover 26. The wire feeding module consists of the following; The box body 5 is welded by four aluminum plates at the back, left, right and bottom. The front and top are connected by bolts for easy disassembly. The box body is connected to the generator installation box body by bolts. A through hole with a diameter of 11 mm for installing the wire feeding guide device 14 is opened on the left side of the box body, and an M4 threaded hole for installing the motor support frame 6, a bearing mounting hole with a diameter of 44 mm and a depth of 6 mm, and a through hole with a diameter of 22 mm for installing the hand screw 18 are opened on the back; A motor mounting frame 6 is used to mount a DC reduction motor. A motor 7 is mounted on one end of the "L"-shaped mounting frame, and the other end is connected to a rear hole of the wire feeder housing 5 by bolts; The support frame 19 has two M6 threaded holes on the left and right sides for connecting the support frame to the wire feeder housing 5, and the support frame has two through holes and notches, the first two of which are used to support the transmission shaft 9 and the support shaft 16, and the latter is mainly to enable the support shaft 16 to move in the vertical direction, so as to facilitate the adjustment of the wire feeding angle; The wire feeding motor 7 is a DC speed-reducing adjustable-speed motor, and the motor output shaft is connected to the rotating shaft through a coupling; The wire feeding wheel 10 has an inner diameter of 10 mm and an outer diameter of 35 mm. A notch is provided on the inner diameter cylindrical surface. The wire feeding wheel 10 is connected to the transmission shaft 9 through a flat key. The wire feeding wheel is connected to the transmission shaft 9 through a key. There are threads on both sides of the notch on the transmission shaft to limit the position of the wire feeding wheel. The wire feeding wheel can also be adjusted within a certain range to adapt to different wire feeding conditions. The wire pressing wheel 13 is fixed on the wire pressing frame 12 by means of a tangent, and the pressing force between the wire pressing wheel 13 and the wire feeding wheel 10 is adjusted by adjusting the wire pressing handle 11; The wire pressing frame 12 is in the shape of an inverted triangle. Two vertices are provided with through holes for connecting bolts and the wire feeding wheel 10, and the other vertex is processed with a protrusion structure for matching with the wire pressing handle 11. The wire pressing handle 11 is fixed by a tangerine. Rotating the handle 11 can adjust the pressure of the handle on the wire pressing frame 12, thereby indirectly adjusting the pressure between the wire feeding wheel 10 and the wire pressing wheel 13; The guide wheel 15 is mounted on the support shaft 16 and has a "V"-shaped groove on its outer circumference for better guiding the wire. The guide wheel 15 can control the angle of the wire entering the plasma jet through three bearings; refer to Figure 1 The wire first passes through the wire guide structure 14, the wire feeding wheel 10 / wire pressing wheel 13, the wire guide structure 14, the first guide wheel, the second guide wheel, the third guide wheel, and the plasma jet. The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A portable plasma generator with a wire feeding mechanism, characterized in that: The plasma generator comprises a plasma generating module and a wire feeding module; The wire feeding module is installed above the plasma generating module; The plasma generating module is composed of a plasma generator (1) and a generator mounting box (2), wherein the plasma generator (1) is fixed in the generator mounting box (2) by means of bolts; The plasma generator is composed of a cathode seat (20), a cathode (21), a cathode head (22), a rear plate cover (23), a gas injector (24), an intermediate insulating sleeve (25), a front gun cover (26), an anode (27), and a front plate cover (28); The cathode (21) is embedded in the cathode seat (20) and connected by threads, and a cooling channel is provided in the cathode seat (20) to cool the cathode (20); the cathode head (22) is embedded in the cathode (21) and adopts an interference fit; the rear plate cover (23) is coaxial with the cathode seat (20) and connected to the middle insulating sleeve (25) by screws; the middle insulating sleeve (25) is coaxial with the cathode seat (20), and is connected to the front cover (26) and the rear plate cover (23) by screws on both sides, and a cooling water channel is provided on the inner side thereof, which cooperates with the cooling water channel of the cathode seat (20), and the two sides of the channel are sealed by sealing rings; the gas injector (24) is coaxial with the cathode (21), and the two sides of the gas injector are in contact with the cathode seat (20) and the anode (27), and the gas injector (24) is provided with an air intake channel; the anode ( 27) is coaxial with the front gun cover (26), and is sealed and connected to the front plate cover (28) and the gas injector (24) on both sides by sealing rings, and a cooling water channel is opened on it to ensure that the anode (27) can be cooled; the front gun cover (26) is coaxial with the anode (27), and is connected to the front plate cover (28) and the middle insulating sleeve (25) on both sides by screws, and its inner side is in electrical contact with the outer side of the anode (27), and a cooling water outflow channel is provided on the outer side of the front gun cover (26) and is connected to the water cooling cable; the front plate cover (28) is coaxial with the anode (27), and has a threaded hole on one side, which is connected to the front gun cover (26) on the other side by screws, and its inner side is sealed with the annular cooling channel at one end of the anode (27) away from the cathode (21) by a sealing ring, so as to ensure that the cooling water flows out from the cooling water outlet of the front gun cover (26); The generator installation box (2) has a through hole on the front wall surface, so that the plasma generator (1) can be fixed in the vertical direction; the rear wall surface is a detachable structure, the rear wall surface is connected to other wall surfaces by screws, and the rear wall surface has three through holes, mainly for exposing two cable interfaces and an air inlet interface on the plasma generator (1); The wire feeding module is composed of a box body (5), a support plate (19), a wire feeding motor (7), a wire feeding wheel (10), a wire pressing wheel (13), a wire pressing frame (12), a wire pressing handle (11), and a guide wheel (15); the box body (5) is connected to the plasma generator module at the bottom, and the support plate (19) is installed in the box body by bolts; the output shaft of the wire feeding motor (7) passes through the box body (5) and is connected to the rotating shaft of the wire feeding wheel (10), and the wire feeding motor (7) is installed on the motor bracket (6) on the back of the box body (5); The wire feeding wheel (10) is mounted on a rotating shaft (9), and the rotating shaft (9) is connected to the output shaft of the motor (7); in order to ensure the stability of wire feeding, a wire feeding guide structure (14) is arranged in front and behind the wire feeding wheel, which is composed of a cylindrical section, a flange section and a conical section, and has a wire feeding channel inside; the wire pressing wheel (13) is arranged on the upper side of the wire feeding wheel and is connected to the wire pressing frame (12) through a tang; the wire pressing frame (12) is connected to the support plate (19) through a tang on one side, and is in contact with the wire pressing handle (11) on the other side, and has a fine-tuning function. The distance between the wire pressing wheel (13) and the wire feeding wheel (12) is adjustable to adjust the pressing force under different wire feeding conditions; the wire pressing handle (11) is mounted on the support plate (19) through a tangerine, and the position of the wire pressing frame (12) can be adjusted by rotating the handle, thereby further adjusting the distance between the wire pressing wheel (13) and the wire feeding wheel (10); there are three guide wheels (15), the first guide wheel is mounted on the support plate (19) through a support shaft (16), and is located downstream of the outlet of the wire guiding structure (14). The lower part of the wire can play a supporting role for the wire; the second guide wheel is installed downstream of the first guide wheel, and it is installed above the wire. Since the corresponding position of the support plate (19) is provided with a notch, it and the support shaft (16) can move in the vertical direction of the support plate (19), and under the action of the first guide wheel and the second guide wheel, the wire can be deflected to a certain angle; the third guide wheel is installed on the protrusion on the right outer wall of the box body (5), and the protrusion is also provided with a notch, so that it can also move in the vertical direction, so that the deflection angle of the wire can be adjusted more flexibly.

2. A portable plasma generator with a wire feeding mechanism according to claim 1, characterized in that: The wire feeding module is located above the plasma generating module, and hand-held handles are installed at the bottom and sides of the overall device for easy carrying.

3. A portable plasma generator with a wire feeding mechanism according to claim 1, characterized in that: The plasma generator may be replaced by other devices having similar functions.

4. A portable plasma generator spraying device with a wire feeding mechanism according to claim 1, characterized in that: The deflection of the wire is controlled by three guide wheels, two of which can move in the vertical direction.

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