Novel plasma cutting electrode

Abstract

The utility model relates to the field of plasma cutting, and discloses a novel plasma cutting electrode which comprises an electrode body, a notch is formed in the top of the electrode body in a penetrating mode, a cooling ring is arranged in an inner cavity of the notch, a water injection groove is formed in the inner wall of the cooling ring, and an emitter is arranged in the middle of the inner cavity of the cooling ring. According to the novel plasma cutting electrode, part of heat can be conducted into the cooling ring, the other part of heat can enter the groove in the cooling ring, at the moment, water is guided into the water injection groove from the water inlet pipe matched with the conical plug in the insertion hole, and part of heat is absorbed and taken away while the water is discharged from the water discharging pipe; meanwhile, after the temperature of air blown out by the air blowing cooling mechanism is reduced by water in the cooling ring, the air is blown to the emitter, the air velocity on the surface of the emitter is increased, and therefore heat is discharged, multiple cooling is achieved, and the heat dissipation effect of the plasma cutting electrode during working is improved; the problem that the service life of an existing plasma cutting electrode is shortened due to the fact that the heat dissipation effect is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plasma cutting, in particular to a novel plasma cutting electrode. Background Art

[0002] Plasma cutting machines are a common metal cutting device used extensively in industries such as construction, shipbuilding, automotive, and metalworking. They can cut a variety of metal materials, such as stainless steel, aluminum alloys, iron, copper, and titanium alloys, with high precision. The process utilizes the heat of a high-temperature plasma arc to partially melt (and evaporate) the metal at the workpiece's cut edge. The momentum of the high-speed plasma then drives the molten metal out, creating the cut.

[0003] Patent publication number CN214236703U discloses a novel plasma cutting electrode, which includes an electrode body, a through hole provided at the center of the top surface of the electrode body, a heat sink provided in the through hole, a blind hole provided in the center of the heat sink, an emitter provided in the blind hole, an annular cavity provided within the heat sink at the periphery of the blind hole, two threaded holes provided at the bottom of the heat sink in communication with the annular cavity, a water inlet pipe and a water outlet pipe being screwed to the two threaded holes, respectively. The device is configured by providing an annular cavity within the heat sink at the periphery of the blind hole, and two threaded holes provided at the bottom of the heat sink in communication with the annular cavity, the two threaded holes being screwed to the water inlet pipe and the water outlet pipe being screwed to the two threaded holes, respectively. This structural design facilitates efficient heat dissipation of the emitter.

[0004] However, the device has the problem that a blind hole is provided on the electrode body, and then after the heat sink is installed in the blind hole, the emitter is placed in the heat sink, and water is introduced into the annular cavity from the water inlet pipe and discharged from the water outlet pipe to realize circulation, thereby cooling the launch platform. However, this cooling method is only a method of using the low temperature of the water itself to take away the heat conducted from the metal heat sink, and the cooling effect on the emitter is not obvious enough. In addition, directly using the heat sink to fully wrap the emitter will also affect the heat dissipation of the emitter. For this reason, a new plasma cutting electrode is proposed to solve the problem of reduced electrode service life caused by poor heat dissipation effect of the existing plasma cutting electrode. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides a novel plasma cutting electrode to solve the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above object, the present utility model provides the following technical solution: a novel plasma cutting electrode, including an electrode body, a notch is penetrated through the top of the electrode body, a cooling ring is arranged in the inner cavity of the notch, a water injection groove is arranged on the inner wall of the cooling ring, an emitter is arranged in the middle of the inner cavity of the cooling ring, a blowing cooling mechanism is arranged at the bottom of the inner cavity of the notch, two opposite jacks are penetrated through the bottom of the cooling ring, a conical plug is arranged in the inner cavity of the jack, a water inlet pipe and a drain pipe are respectively arranged at the bottoms of the two conical plugs.

[0009] Preferably, the notch is columnar, a plurality of grooves are penetrated through the top of the cooling ring, and the cooling ring is made of a material with good heat conduction effect.

[0010] Preferably, the jack is communicated with the water injection groove.

[0011] Preferably, the conical plug is made of elastic rubber material, the top aperture of the conical plug is slightly smaller, and the diameter of the conical plug at a position slightly below the top is slightly larger than the diameter of the jack.

[0012] Preferably, the blowing cooling mechanism includes an air inlet disc attached to the cooling ring, an air inlet groove is arranged on the inner wall of the air inlet disc, and an air inlet pipe is arranged externally and communicated with the air inlet disc.

[0013] Preferably, a plurality of groups of exhaust slot holes are evenly distributed and penetrated through the top of the air inlet disc, the exhaust slot holes correspond to the positions of the grooves in the cooling ring, and the exhaust slot holes are inclined towards the emitter.

[0014] (III) Beneficial effects

[0015] 1. For this novel plasma cutting electrode, part of the heat will be conducted into the cooling ring, and the other part will enter the grooves in the cooling ring. At this time, water is introduced into the water injection groove from the water inlet pipe in cooperation with the conical plug in the jack, and while being discharged from the drain pipe, part of the heat is absorbed and carried away. At the same time, the temperature of the air blown by the blowing cooling mechanism is reduced by the water in the cooling ring and then blown towards the emitter, accelerating the air flow rate on the surface of the emitter, thereby discharging heat. Multiple cooling methods are used to improve the heat dissipation effect during the operation of this plasma cutting electrode, and solve the problem of reduced electrode service life caused by poor heat dissipation effect of the existing plasma cutting electrode.

[0016] 2. For this novel plasma cutting electrode, the air is introduced from the air inlet pipe into the air inlet groove in the air inlet disc through external devices such as a fan and a pump body, and then discharged through the exhaust slot holes inclined towards the emitter. During the process, the blown air will also be cooled by the low-temperature water in the cooling ring, thereby accelerating the air flow rate on the surface of the emitter and further improving the heat dissipation effect to ensure the normal operation of the plasma cutting electrode. Description of the drawings

[0017] Figure 1 This is the structural diagram of the utility model;

[0018] Figure 2 This is the structural sectional view of the utility model;

[0019] Figure 3 This is the structure of the utility model Figure 2 The enlarged view of part A in the structure;

[0020] Figure 4 This is the schematic diagram of the blowing cooling mechanism of the structure of the utility model.

[0021] In the figure: 1. Electrode main body; 2. Notch; 3. Cooling ring; 4. Emitter; 5. Blowing cooling mechanism; 501. Air inlet disc; 502. Air inlet groove; 503. Exhaust slot hole; 504. Air inlet pipe; 6. Jack; 7. Conical plug; 8. Water inlet pipe; 9. Drain pipe; 10. Water injection groove. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the 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.

[0023] Embodiment: Please refer to Figures 1-4 , a new type of plasma cutting electrode, including an electrode main body 1, a notch 2 is penetrated and opened at the top of the electrode main body 1, a cooling ring 3 is arranged in the inner cavity of the notch 2, a water injection groove 10 is opened on the inner wall of the cooling ring 3, an emitter 4 is arranged in the middle of the inner cavity of the cooling ring 3, a blowing cooling mechanism 5 is arranged at the bottom of the inner cavity of the notch 2, two opposite jacks 6 are penetrated and opened at the bottom of the cooling ring 3, a conical plug 7 is arranged in the inner cavity of the jack 6, and a water inlet pipe 8 and a drain pipe 9 are respectively arranged at the bottoms of the two conical plugs 7.

[0024] Furthermore, the notch 2 is columnar, a plurality of grooves are penetrated and opened at the top of the cooling ring 3, the cooling ring 3 is made of a material with good heat conduction effect, part of the heat will be conducted into the cooling ring 3, and the other part will enter the grooves in the cooling ring 3. At this time, water is introduced into the water injection groove 10 from the water inlet pipe 8 in cooperation with the conical plug 7 in the jack 6. While discharging from the drain pipe 9, part of the heat is absorbed and taken away to ensure the heat dissipation of the electrode main body 1 and facilitate the normal operation of the new type of plasma cutting electrode.

[0025] Furthermore, the jack 6 communicates with the water injection groove 10.

[0026] Further, the conical plug 7 is made of elastic rubber material. The top diameter of the conical plug 7 is slightly smaller, and the diameter at a position slightly below the top of the conical plug 7 is slightly larger than the diameter of the jack 6. Both the water inlet pipe 8 and the drain pipe 9 are inserted into the jack 6 at the bottom of the cooling ring 3 by using the conical plug 7. By cooperating with the rubber material and the conical plug 7 with different diameters, the sealing performance and firmness between the conical plug 7 and the jack 6, as well as the convenience during disassembly and maintenance, are improved.

[0027] Further, the air blowing cooling mechanism 5 includes an air inlet disc 501 that fits against the cooling ring 3. An air inlet groove 502 is formed in the inner wall of the air inlet disc 501, and an air inlet pipe 504 is communicated with the outside of the air inlet disc 501.

[0028] Further, a number of groups of exhaust groove holes 503 are evenly distributed and penetrated through the top of the air inlet disc 501. The exhaust groove holes 503 correspond to the positions of the grooves in the cooling ring 3, and the exhaust groove holes 503 are inclined towards the emitter 4. By using external devices such as a fan and a pump body, the air is introduced from the air inlet pipe 504 into the air inlet groove 502 in the air inlet disc 501, and then the air is discharged through the exhaust groove holes 503 inclined towards the emitter 4. During this process, the blown air will also be cooled by the low-temperature water in the cooling ring 3, thereby accelerating the air flow rate on the surface of the emitter 4 and further improving the heat dissipation effect to ensure the normal operation of the plasma cutting electrode.

[0029] Working principle: When using this new type of plasma cutting electrode, part of the high temperature generated by the operation of the emitter 4 will be conducted into the cooling ring 3, and the other part will enter the groove in the cooling ring 3. At this time, water is introduced from the water inlet pipe 8 into the water injection groove 10 through the conical plug 7 in the jack 6, and part of the heat is absorbed and carried away while being discharged from the drain pipe 9. At the same time, the temperature of the air blown by the air blowing cooling mechanism 5 is reduced by the water in the cooling ring 3 and then blown towards the emitter 4 to accelerate the air flow rate on the surface of the emitter 4, thereby discharging heat. Multiple cooling methods are used to improve the heat dissipation effect during the operation of this plasma cutting electrode, solving the problem of reduced electrode service life caused by poor heat dissipation effect of the existing plasma cutting electrode; both the water inlet pipe 8 and the drain pipe 9 are inserted into the jack 6 at the bottom of the cooling ring 3 by using the conical plug 7. By cooperating with the rubber material and the conical plug 7 with different diameters, the sealing performance and firmness between the conical plug 7 and the jack 6, as well as the convenience during disassembly and maintenance, are improved.

[0030] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of plasma cutting electrode, comprising an electrode body (1), characterized in that: A notch (2) is penetrated and opened at the top of the electrode body (1). A cooling ring (3) is arranged in the inner cavity of the notch (2). A water injection groove (10) is opened on the inner wall of the cooling ring (3). An emitter (4) is arranged in the middle of the inner cavity of the cooling ring (3). A blowing cooling mechanism (5) is arranged at the bottom of the inner cavity of the notch (2). Two opposite jacks (6) are penetrated and opened at the bottom of the cooling ring (3). A conical plug (7) is arranged in the inner cavity of the jack (6). Water inlet pipes (8) and drain pipes (9) are respectively arranged at the bottoms of the two conical plugs (7).

2. A novel plasma cutting electrode according to claim 1, characterized in that: The notch (2) is columnar. A plurality of grooves are penetrated and opened at the top of the cooling ring (3). The cooling ring (3) is made of a material with good heat conduction effect.

3. A novel plasma cutting electrode according to claim 1, characterized in that: The jack (6) communicates with the water injection groove (10).

4. A novel plasma cutting electrode according to claim 1, characterized in that: The conical plug (7) is made of elastic rubber material. The diameter of the top of the conical plug (7) is slightly smaller. The diameter of the position slightly below the top of the conical plug (7) is slightly larger than the diameter of the jack (6).

5. A novel plasma cutting electrode according to claim 1, characterized in that: The blowing cooling mechanism (5) includes an air inlet disc (501) attached to the cooling ring (3). An air inlet groove (502) is opened on the inner wall of the air inlet disc (501). An air inlet pipe (504) is arranged externally and communicated with the air inlet disc (501).

6. A novel plasma cutting electrode according to claims 2 and 5, characterized in that: A plurality of groups of exhaust slot holes (503) are evenly distributed and penetrated and opened at the top of the air inlet disc (501). The exhaust slot holes (503) correspond to the positions of the grooves in the cooling ring (3). The exhaust slot holes (503) are inclined towards the emitter (4).

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