A plasma cutting device for fermenter head

Abstract

The application discloses a fermenting tank head plasma cutting device and relates to the technical field of plasma cutting devices.The fermenting tank head plasma cutting device has the following advantages: when materials are put into the device, the convex strips on the top of the bottom base plate contact the bottom of the materials, the contact area with the bottom of the materials is reduced, the frictional resistance during the position adjustment of the materials is reduced, the air flow gaps are formed in the bottom of the cylindrical materials by the cooperation of the intervals between the bottom base plates, the air can flow into the cylindrical materials from the bottom of the materials along the gaps, the air flow in the materials during the cutting is ensured, the cooling effect on the materials is improved, the materials are cooled quickly when the hot melting materials are blown out, the contact area is reduced by the cooperation of the convex strips and the bottom of the materials, the hot melting materials falling in the contact position are prevented, the materials are connected at the contact position due to the large contact area, and the materials are difficult to separate.

Description

Technical Field

[0001] This invention relates to the field of plasma cutting equipment technology, specifically a plasma cutting device for the end caps of a fermentation tank. Background Technology

[0002] The fermentation tank head refers to the sealing component located at the top or bottom of the fermentation tank. Its main function is to seal the tank body and form a complete, pressure-resistant fermentation space. The plasma cutting machine is a high-efficiency thermal cutting device that uses a high-temperature plasma arc as a heat source to locally melt the material to be cut and simultaneously blow away the molten metal with a high-speed airflow, thereby forming a cut. A plasma cutting device for pipe intersection lines, disclosed in CN108436240B, includes a chassis, a plasma cutting assembly, a pipe rotating platform, and a thin-walled pipe. The plasma cutting assembly includes a base, a fixed shaft, a fixed sleeve, a sliding sleeve, a knob, an adjusting wheel, a gear, a ring nut, and a plasma cutting gun. The fixed sleeve includes a horizontal pipe, a vertical pipe, and a pipe seat. The base has four corner openings, and a fixed shaft is welded to the center of the base. The sliding sleeve includes a sliding sleeve head, a fastener, and a sliding sleeve tube. The sliding sleeve head is an open ring structure, and the sliding sleeve tube is cylindrical. One side of its outer circle is machined with a rack along the pipe axis, meshing with a gear to form a rack and pinion mechanism. The adjusting wheel includes a wheel and a wheel axle, with a ring nut, a flat key, and a... Gears and axles are installed in the tube base; the tube rotation platform includes a motor, worm gear reducer, rotating shaft, turntable, ring head stud, nut, support legs, lug assembly, and fixed plate; the lug assembly includes lug, pin, and nut. However, during plasma cutting, poor air circulation inside the material prevents the internal temperature from being dissipated, affecting the cooling of the material after the blown hot molten material leaves. This causes the material to fall off, resulting in accumulation at the contact point between the cutting table and the material. At the same time, the hot molten material will cause a connection between the material and the cutting table, affecting the removal of the cut material. Also, during cutting, after a gap is cut, the material tends to move towards the gap, causing deformation of the uncut area and affecting the accuracy of the cutting path. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a plasma cutting device for fermenter heads, comprising: The frame has an air tank and an air pump fixedly installed on its outer side, and a gun head mechanism is slidably installed on the inner wall of the frame. A plasma power supply is installed on the top of the frame and is electrically connected to the gun head mechanism. The air inlet of the air pump is connected to the air tank through a pipe, and the air outlet of the air pump is connected to the gun head mechanism through a pipe. The bottom support mechanism and the inner support mechanism are installed at the top of the frame, and the inner support mechanism is installed at the center of the top of the bottom support mechanism. The bottom support mechanism includes a bottom support base, on the top of which a sliding groove plate is rotatably mounted. The top of the sliding groove plate has evenly spaced grooves, and bottom pads are slidably mounted at each groove. Connecting blocks are fixedly mounted at the center of opposite surfaces of the bottom pads, and raised strips are evenly distributed on the top of each bottom pad. An outer arc plate is fixedly mounted on the side of the bottom pad away from the center of the sliding groove plate. Through the raised strips on the top of the bottom pads, when material is placed into the equipment, the raised strips contact the bottom of the material, reducing the contact area and frictional resistance during material position adjustment. Simultaneously, the spacing between the bottom pads creates an airflow gap at the bottom of the cylindrical material, ensuring air can enter the interior of the cylindrical material from the bottom along the gap. This ensures airflow inside the material during cutting, improving the cooling effect and achieving rapid cooling when the molten material is blown out. The temperature is adjusted to ensure proper contact between the convex strip and the bottom of the material, reducing the contact area and preventing the hot-melted material from falling onto the contact point. Due to the large contact area, the material may become stuck at the contact point, making separation difficult. An inner clamping block is fixedly installed at the center of each opposite surface of the outer arc plate, and side clamping blocks are fixedly installed on both sides of each opposite surface of the outer arc plate. The side clamping blocks cooperate with the inner clamping blocks to first contact the surface of the material before clamping and fixing. Utilizing the elastic material properties of the side clamping blocks, they deform to conform to the material surface until the inner clamping block contacts the material surface, applying clamping pressure to complete the clamping and fixing of the material. The deformation of the side clamping blocks to conform to the material surface increases the contact area, ensuring smooth rotation of the material during cutting and preventing relative sliding between the material and the inner clamping blocks, which could lead to excessive hot melting at the cutting point and an excessively large cutting gap. The side clamping blocks are made of elastic material.

[0004] Preferably, a first cylinder is fixedly installed on the top of the chute, the first cylinders are evenly installed on the top of the chute, and the output end of the first cylinder is fixedly connected to the opposite side of the connecting block. A first motor is fixedly installed on the top of the inner wall of the bottom support, and the output end of the first motor is fixedly connected to the center position of the bottom of the chute.

[0005] Preferably, the internal support mechanism includes a hollow groove cylinder, the bottom end of which is fixedly connected to the center of the top of the sliding groove plate, and a second motor is fixedly installed on the top of the hollow groove cylinder. The output end of the second motor passes through the hollow groove cylinder and extends into its interior, and a lead screw is fixedly installed on the output end of the second motor. Through slots are symmetrically opened on the outer side of the hollow groove cylinder, and a screw hole plate is slidably installed in the through slot of the hollow groove cylinder. The inner wall of the screw hole plate is threadedly connected to the outer side of the lead screw, and hollow slots are evenly opened on the top of the screw hole plate. A second cylinder is fixedly installed in each of the hollow slots of the screw hole plate.

[0006] Preferably, the output end of the second cylinder passes through the screw hole disc and extends to its outer side. Each output end of the second cylinder is fixedly equipped with a slanted groove block. Slanted grooves are formed on both sides of the slanted groove block, and these grooves slope downwards towards the side away from the screw hole disc. An arc-groove plate is slidably installed on the outer side of the slanted groove block. Sliding fasteners are provided on both sides of the arc-groove plate, and the arc-groove plate slides and adapts to the slanted groove of the slanted groove block via these fasteners. By utilizing the sliding fasteners to adapt the arc-groove plate to the slanted groove of the slanted groove block, and considering the characteristic that the slanted groove of the slanted groove slopes downwards towards the side away from the screw hole disc, during the cutting process, when the upper material tends to move downwards due to the cutting gap, the inclination of the slanted groove causes the arc-groove plate to tend to move obliquely downwards towards the inner wall of the material, increasing the pressure on the material. The supporting pressure restricts the downward movement of the material, preventing it from tilting and causing subsequent incorrect cutting positions. Each inclined groove block has an inner pad ring, made of elastic material, engaged at its inclined groove. The outer side of the arc groove plate has a centrally recessed arc groove. Through the interaction between the arc groove and the rubber plate, when the rubber plate is in contact with the inner wall of the material and is rotated by the bottom support mechanism for cutting, the friction between the rubber plate and the inner wall of the material, combined with the arc groove, causes the rubber plate to move within the arc groove when the material tends to rotate relative to the arc groove plate. This gradually reduces the distance between the sides of the arc groove and the inner wall of the material, increasing the contact pressure between the rubber plate and the material, restricting relative rotation, and preventing slippage during material cutting. Furthermore, rubber plates are fixedly installed at each arc groove of the arc groove plate.

[0007] Preferably, the gun head mechanism includes a side slide plate and a third cylinder. The third cylinder is fixedly installed on the inner wall of the frame, and the output end of the third cylinder is fixedly connected to both sides of the top of the side slide plate. A fourth cylinder is fixedly installed on both the upper and lower sides of the side slide plate. A connecting plate is fixedly installed on the output end of the fourth cylinder. A gun barrel is fixedly installed on the outer side of the connecting plate. One end of the gun barrel is curved toward the inner support mechanism, and an end cover is fixedly installed on the curved end of the gun barrel. The outer diameter of the end cover gradually decreases as it moves away from the gun barrel. An inner buckle is fixedly installed on the inner wall of the end cover near the gun barrel, and an electrode head is fixedly installed on the inner wall of the inner buckle.

[0008] Preferably, an inner spiral cover is fixedly installed on the inner wall of the end cover away from the barrel. The inner wall of the inner spiral cover is uniformly provided with spiral plates. An inner gasket is fixedly installed on the outer side of the electrode head. The outer side of the inner gasket contacts the spiral plates of the inner spiral cover. Through the cooperation of the end cover and the inner spiral cover, when the protective gas is discharged, the change in the inner diameter of the end cover is used to accelerate the flow rate of the gas during discharge. At the same time, the spiral plates inside the inner spiral cover are used to make the gas evenly discharged from all sides of the electrode head, blowing the hot melt material and avoiding uneven blowing of the material, which would affect the smoothness of the cutting position. A conductive rod is fixedly installed on the inner wall of the barrel. One end of the conductive rod is fixedly connected to the electrode head, and the other end of the conductive rod is electrically connected to the plasma power supply. A connecting pipe is provided on the outer side of the barrel, and the connecting pipe is connected to the gas outlet of the gas pump through a pipe. A sponge column is fixedly installed on the inner wall of the barrel.

[0009] This invention provides a plasma cutting device for the end caps of fermenters. It has the following beneficial effects: (i) The plasma cutting device for the fermentation tank head uses the protrusions on the top of the bottom pad to contact the bottom of the material when it is placed in the equipment, reducing the contact area with the bottom of the material and reducing the frictional resistance when adjusting the material position. At the same time, in conjunction with the gap between the bottom pads, an air flow gap is formed at the bottom of the cylindrical material, ensuring that air can enter the interior of the cylindrical material from the bottom of the material along the gap, ensuring air flow inside the material during cutting, improving the cooling effect on the material, and achieving rapid cooling when the hot melt material is blown out. In conjunction with the contact between the protrusions and the bottom of the material, the contact area is reduced, preventing the hot melt material from falling at the contact position. Due to the large contact area, the material contact position may become connected, making separation difficult. (II) The plasma cutting device for the fermentation tank head, through the cooperation of the side clamping block and the inner clamping block, allows the side clamping block to first contact the surface of the material before clamping and fixing. Utilizing the elastic material characteristics of the side clamping block, the side clamping block deforms and conforms to the surface of the material until the inner clamping block contacts the surface of the material and clamping pressure is applied, thus completing the clamping and fixing of the material. By utilizing the deformation of the side clamping block to conform to the surface of the material, the contact area with the material surface is increased, which can ensure that the material can be smoothly rotated during cutting and prevent relative sliding between the material and the inner clamping block, which would lead to excessive heat melting at the cutting position and excessive cutting gap. (III) The plasma cutting device for the fermentation tank head utilizes the sliding fit between the arc groove plate and the inclined groove of the inclined block. In conjunction with the characteristic that the inclined groove of the inclined block is inclined from top to bottom away from the screw hole plate, when the upper material tends to move downward due to the cutting gap during the cutting process, the inclined groove makes the arc groove plate tend to move downward towards the inner wall of the material, increasing the pressure of the supporting effect on the material, restricting the downward movement of the material, and preventing the material from tilting downward, which would lead to the subsequent cutting position error. (iv) The plasma cutting device for the fermentation tank head uses the arc groove of the arc groove plate to cooperate with the rubber plate. When the rubber plate is in contact with the inner wall of the material and is driven to rotate and cut by the bottom support mechanism, the friction between the rubber plate and the inner wall of the material is used in conjunction with the arc groove. When the material tends to rotate relative to the arc groove plate, the rubber plate is driven to move in the arc groove. The distance between the two sides of the arc groove and the inner wall of the material gradually decreases, increasing the contact pressure between the rubber plate and the material, restricting relative rotation, and preventing the material from slipping when it is being cut and rotated. (v) The plasma cutting device for the fermentation tank head, through the cooperation of the end cover and the inner screw cover, uses the change in the inner diameter of the end cover to accelerate the flow rate of the gas during the discharge of protective gas. At the same time, the spiral plate inside the inner screw cover makes the gas evenly discharged from the periphery of the electrode head, blowing the hot melt material, avoiding uneven blowing of the material, which would affect the smoothness of the cutting position. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 This is a schematic diagram showing the positional structure of the bottom support mechanism and the inner support mechanism of the present invention; Figure 4 This is a schematic diagram of the bottom support mechanism of the present invention; Figure 5 This is a sectional view of the bottom support mechanism of the present invention; Figure 6 This is a schematic diagram of the internal support mechanism of the present invention; Figure 7 This is a partial structural schematic diagram of the internal support mechanism of the present invention; Figure 8 This is a schematic diagram showing the position and structure of the frame and the gun head mechanism of the present invention; Figure 9 This is a schematic diagram of the gun head mechanism of the present invention; Figure 10 This is a partial sectional view of the gun head mechanism of the present invention; Figure 11 This is a partial sectional side view of the gun head mechanism of the present invention.

[0011] In the diagram: 1. Frame; 2. Base support mechanism; 3. Internal support mechanism; 4. Gun head mechanism; 5. Plasma power supply; 6. Air pump; 7. Air tank; 21. Base support seat; 22. Slide tray; 23. First cylinder; 24. Base plate; 25. Outer arc plate; 26. Inner clamping block; 27. Side clamping block; 28. First motor; 29. ​​Connecting block; 31. Empty slot cylinder; 32. Second motor; 33. Lead screw; 34. Second cylinder; 35. Screw hole plate; 36. Inclined groove block; 37. Inner gasket ring; 38. Rubber plate; 39. Arc groove plate; 401. Side slide plate; 402. Third cylinder; 403. Fourth cylinder; 404. Connecting plate; 405. Gun barrel; 406. End cover; 407. Sponge column; 408. Conductive rod; 409. Electrode head; 410. Inner screw cover; 411. Inner gasket cylinder; 412. Inner buckle. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] For the first embodiment, please refer to... Figures 1 to 5 The present invention provides a technical solution: A plasma cutting device for fermenter heads includes: The frame 1 has an air tank 7 and an air pump 6 fixedly installed on its outer side, and a gun head mechanism 4 is slidably installed on the inner wall of the frame 1. A plasma power supply 5 is installed on the top of the frame 1. The plasma power supply 5 is electrically connected to the gun head mechanism 4. The air inlet of the air pump 6 is connected to the air tank 7 through a pipe, and the air outlet of the air pump 6 is connected to the gun head mechanism 4 through a pipe. The bottom support mechanism 2 and the inner support mechanism 3 are installed at the top of the frame 1, and the inner support mechanism 3 is installed at the center of the top of the bottom support mechanism 2. The bottom support mechanism 2 includes a bottom support base 21, on the top of which a sliding plate 22 is rotatably mounted. The top of the sliding plate 22 has evenly spaced grooves, and bottom pads 24 are slidably mounted at each groove. When a cylindrical material is placed into the equipment using a hoisting device, the bottom of the material contacts the top of the bottom pad 24. The protrusions on the top of the bottom pad 24 contact the bottom of the material, reducing the contact area. Simultaneously, the spacing between the bottom pads 24 creates an airflow gap at the bottom of the material. Then, through the connection between the output end of the first cylinder 23 and the connecting block 29, the bottom pads 24 slide at the grooves of the sliding plate 22, moving towards the center of the sliding plate 22. Connecting blocks 29 are fixedly mounted at the center of each opposite surface of the bottom pads 24, and the top of the bottom pads 24 has evenly spaced grooves. An outer arc plate 25 is fixedly installed on the side of the top of the bottom pad 24 away from the center of the slide plate 22. An inner clamping block 26 is fixedly installed at the center of the opposite surface of the outer arc plate 25, and a side clamping block 27 is fixedly installed on both sides of the opposite surface of the outer arc plate 25. During the movement, the side clamping blocks 27 on both sides of the opposite surface of the outer arc plate 25 first contact the outer side of the material. In the subsequent continuous pressure process, the side clamping blocks 27 are deformed under the pressure of the elastic material, so that the side clamping blocks 27 fit the surface of the material. When the opposite surface of the inner clamping block 26 contacts the outer side of the material and generates clamping pressure, the clamping, fixing and positioning of the material is completed. After the material is fixed by the inner support mechanism 3, during the cutting process, the slide plate 22 is rotated by the first motor 28, which also drives the material to rotate, completing the ring cutting. The side clamping blocks 27 are made of elastic material.

[0014] A first cylinder 23 is fixedly installed on the top of the slide plate 22. The first cylinders 23 are evenly installed on the top of the slide plate 22, and the output end of the first cylinder 23 is fixedly connected to the opposite side of the connecting block 29. A first motor 28 is fixedly installed on the top of the inner wall of the bottom support 21. The output end of the first motor 28 is fixedly connected to the center position of the bottom of the slide plate 22.

[0015] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 6 to 7As shown, the inner support mechanism 3 includes a hollow groove cylinder 31. The bottom end of the hollow groove cylinder 31 is fixedly connected to the center of the top of the sliding plate 22, and a second motor 32 is fixedly installed on the top of the hollow groove cylinder 31. The output end of the second motor 32 passes through the hollow groove cylinder 31 and extends into its interior. A lead screw 33 is fixedly installed on the output end of the second motor 32. Through slots are symmetrically opened on the outer side of the hollow groove cylinder 31, and a screw hole plate 35 is slidably installed at the through slot of the hollow groove cylinder 31. After the bottom support mechanism 2 completes the positioning and fixing of the material, the second motor 32 drives the lead screw 33 to rotate, utilizing the screw hole... The inner wall of the disc 35 is threadedly connected to the lead screw 33, and the disc 35 slides and adapts to the slot of the slotted cylinder 31, so that the disc 35 can move up and down, so that the disc 35 is above the material cutting position. Then, the second cylinder 34 drives the inclined block 36 to move in all directions, so that the rubber plate 38 contacts the inner wall of the material, and under the contact pressure, the rubber plate 38 adheres to the inner wall of the material. The inner wall of the disc 35 is threadedly connected to the outer side of the lead screw 33, and the top of the disc 35 is evenly provided with slots. The second cylinder 34 is fixedly installed in each slot of the disc 35.

[0016] The output end of the second cylinder 34 passes through the screw hole plate 35 and extends to its outer side. Each output end of the second cylinder 34 is fixedly equipped with a slanted groove block 36. Slanted grooves are formed on both sides of the slanted groove block 36, and these grooves slope downwards towards the side away from the screw hole plate 35. An arc groove plate 39 is slidably installed on the outer side of the slanted groove block 36. During the cutting process, the slanted groove of the slanted groove block 36 and the arc groove plate 39 slide and adapt to each other. Utilizing the characteristic that the slanted groove of the slanted groove block 36 slopes downwards towards the side away from the screw hole plate 35, when the upper material is being cut, due to the cutting... When the gap is cut and there is a downward tendency, the tendency is transmitted to the arc groove plate 39 through the rubber plate 38, causing the arc groove plate 39 to slide downward in the inclined groove, increasing the contact pressure with the material and restricting the material from moving downward. The arc groove plate 39 is provided with sliding buckles on both sides, and the arc groove plate 39 slides and adapts to the inclined groove of the inclined groove block 36 through the sliding buckles. The inclined groove of the inclined groove block 36 is fitted with an inner pad ring 37, which is made of elastic material. The outer side of the arc groove plate 39 is provided with a centrally recessed arc groove, and the arc groove of the arc groove plate 39 is fixedly installed with a rubber plate 38.

[0017] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 8 to 11As shown, the gun head mechanism 4 includes a side slide plate 401 and a third cylinder 402. The third cylinder 402 is fixedly installed on the inner wall of the frame 1, and its output end is fixedly connected to both sides of the top of the side slide plate 401. A fourth cylinder 403 is fixedly installed on both the upper and lower sides of the side slide plate 401. A connecting plate 404 is fixedly installed on the output end of the fourth cylinder 403. A gun barrel 405 is fixedly installed on the outer side of the connecting plate 404. The electrode head 409 is electrically connected to the plasma power supply 5 through a conductive rod 408. When the electrode head 409 approaches the material, an electric arc is formed, utilizing the plasma arc. The material is heated to melt the welding position. At the same time, the air pump 6 drives the cutting protective gas inside the air tank 7 to be introduced into the gun barrel 405 through the pipeline. After passing through the sponge column 407, the gas enters the end cover 406. One end of the gun barrel 405 is curved towards the inner support mechanism 3, and the end cover 406 is fixedly installed at the curved end of the gun barrel 405. The outer diameter of the end cover 406 gradually decreases as it moves away from the gun barrel 405. An inner buckle 412 is fixedly installed on the inner wall of the end cover 406 near the end of the gun barrel 405. An electrode head 409 is fixedly installed on the inner wall of the inner buckle 412.

[0018] An inner screw cover 410 is fixedly installed on the inner wall of the end cover 406 away from the barrel 405. Spiral plates are evenly distributed on the inner wall of the inner screw cover 410. An inner gasket 411 is fixedly installed on the outer side of the electrode head 409, and the outer side of the inner gasket 411 contacts the spiral plates of the inner screw cover 410. A conductive rod 408 is fixedly installed on the inner wall of the barrel 405. Utilizing the characteristic that the inner and outer diameters of the end cover 406 gradually decrease as it moves away from the barrel 405, the airflow gap is reduced, causing the flow velocity of the protective gas to gradually increase during exhaust. Simultaneously, in conjunction with the spiral plate inside the inner screw cover 410, the protective gas is rapidly spirally discharged around the electrode head 409, impacting the hot-melt position of the material and blowing away the hot-melt material to achieve plasma cutting of the material. One end of the conductive rod 408 is fixedly connected to the electrode head 409, and the other end of the conductive rod 408 is electrically connected to the plasma power supply 5. A connecting pipe is provided on the outside of the gun barrel 405, and the connecting pipe is connected to the air outlet of the air pump 6 through a pipe. A sponge column 407 is fixedly installed on the inner wall of the gun barrel 405.

[0019] In use, the cylindrical material from the fermentation tank head manufacturing process is placed on top of the bottom support mechanism 2, and then supported inside the cylindrical material by the inner support mechanism 3. At the same time, the support mechanism of the inner support mechanism 3 is positioned above the cutting position. Then, the gun head mechanism 4 approaches the cutting position, and the plasma power supply 5 and air pump 6 are activated. The plasma power supply 5 provides the voltage and current required for plasma cutting to the gun head mechanism 4, so that a plasma arc is formed between the gun head mechanism 4 and the material, causing the material at the cutting position to melt. At the same time, the air pump 6 drives the protective gas inside the gas tank 7 into the gun head mechanism 4 and exits from the other end to blow away the melted material at the cutting position, thus realizing the plasma cutting treatment of the material.

[0020] In the bottom support mechanism 2, when the cylindrical material is placed into the equipment by the hoisting equipment, the bottom of the material contacts the top of the bottom pad 24. The protrusion on the top of the bottom pad 24 contacts the bottom of the material, reducing the contact area between them. At the same time, the spacing between the bottom pads 24 creates an airflow gap at the bottom of the material. Then, through the connection between the output end of the first cylinder 23 and the connecting block 29, the bottom pad 24 is driven to slide in the groove of the sliding plate 22, causing the bottom pad 24 to move towards the center of the sliding plate 22. During the process, the side clamping blocks 27 on both sides of the outer arc plate 25 first contact the outer side of the material. In the subsequent continuous pressure process, the side clamping blocks 27 are deformed under the pressure of the elastic material, so that the side clamping blocks 27 fit the surface of the material. When the opposite surface of the inner clamping block 26 contacts the outer side of the material and generates clamping pressure, the clamping, fixing and positioning of the material is completed. After the material is fixed by the inner support mechanism 3, during the cutting process, the first motor 28 drives the sliding groove plate 22 to rotate, and drives the material to rotate, thus completing the ring cutting.

[0021] In the inner support mechanism 3, after the bottom support mechanism 2 completes the positioning and fixing of the material, the second motor 32 drives the lead screw 33 to rotate. Utilizing the threaded connection between the inner wall of the screw hole plate 35 and the lead screw 33, and the sliding fit between the screw hole plate 35 and the empty groove of the empty groove cylinder 31, the screw hole plate 35 moves up and down, positioning itself above the material cutting position. Subsequently, the second cylinder 34 drives the inclined groove block 36 to move in all directions, causing the rubber plate 38 to contact the inner wall of the material. Under contact pressure, the rubber plate 38 adheres to the inner wall of the material. Simultaneously, during the cutting process, the inclined groove of the inclined groove block 36 slides and fits with the sliding buckle of the arc groove plate 39. Utilizing the characteristic that the inclined groove of the inclined groove block 36 slopes from top to bottom away from the screw hole plate 35, when the upper material is being cut, due to the cutting gap, a downward movement tendency occurs. This tendency is transmitted to the arc groove plate 39 through the rubber plate 38, causing the arc groove plate 39 to slide downwards, increasing the contact pressure with the material and restricting the material's downward movement.

[0022] In the gun head mechanism 4, the electrode head 409 is electrically connected to the plasma power supply 5 through the conductive rod 408. When the electrode head 409 approaches the material, an electric arc is formed. The plasma arc is used to heat the material, causing the welding position of the material to melt. At the same time, the air pump 6 drives the cutting protective gas inside the air tank 7 to be introduced into the gun barrel 405 through the pipe. After passing through the sponge column 407, the gas enters the end cover 406. Taking advantage of the characteristic that the inner and outer diameters of the end cover 406 gradually decrease as it moves away from the gun barrel 405, the air flow gap is reduced, and the flow speed of the protective gas gradually increases when it is discharged. At the same time, in conjunction with the spiral plate inside the inner spiral cover 410, the protective gas is rapidly spiraled out around the electrode head 409, impacting the melting position of the material and blowing away the melted material, thus realizing the plasma cutting of the material.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plasma cutting device for the head of a fermentation tank, characterized in that, include: A frame (1) is provided, on the outside of which a gas tank (7) and a gas pump (6) are fixedly installed. A gun head mechanism (4) is slidably installed on the inner wall of the frame (1). A plasma power supply (5) is installed on the top of the frame (1). The plasma power supply (5) is electrically connected to the gun head mechanism (4). The air inlet of the gas pump (6) is connected to the gas tank (7) through a pipe. The air outlet of the gas pump (6) is connected to the gun head mechanism (4) through a pipe. The bottom support mechanism (2) and the inner support mechanism (3) are installed on the top of the frame (1) and the inner support mechanism (3) is installed at the center of the top of the bottom support mechanism (2). The bottom support mechanism (2) includes a bottom support base (21), a sliding groove plate (22) is rotatably mounted on the top of the bottom support base (21), the top of the sliding groove plate (22) is evenly provided with grooves, and a bottom pad plate (24) is slidably mounted on each groove of the sliding groove plate (22). A connecting block (29) is fixedly mounted at the center of the opposite surface of the bottom pad plate (24), and a protruding strip is evenly provided on the top of the bottom pad plate (24). An outer arc plate (25) is fixedly mounted on the side of the top of the bottom pad plate (24) away from the center of the sliding groove plate (22). An inner clamping block (26) is fixedly mounted at the center of the opposite surface of the outer arc plate (25), and side clamping blocks (27) are fixedly mounted on both sides of the opposite surface of the outer arc plate (25). The side clamping blocks (27) are made of elastic material. The internal support mechanism (3) includes a hollow groove cylinder (31), the bottom end of which is fixedly connected to the center of the top of the sliding plate (22), and a second motor (32) is fixedly installed on the top of the hollow groove cylinder (31). The output end of the second motor (32) passes through the hollow groove cylinder (31) and extends into its interior, and a lead screw (33) is fixedly installed on the output end of the second motor (32). The outer side of the hollow cylinder (31) is symmetrically provided with through slots, and a screw hole plate (35) is slidably installed in the through slot of the hollow cylinder (31). The inner wall of the screw hole plate (35) is threaded to the outer side of the lead screw (33), and the top of the screw hole plate (35) is uniformly provided with hollow slots. A second cylinder (34) is fixedly installed in each of the hollow slots of the screw hole plate (35). The output end of the second cylinder (34) passes through the screw hole plate (35) and extends to its outer side. The output end of the second cylinder (34) is fixedly installed with a slant block (36). Slant grooves are opened on both sides of the slant block (36), and the slant grooves are inclined from top to bottom to the side away from the screw hole plate (35). An arc groove plate (39) is slidably installed on the outer side of the inclined groove block (36). The arc groove plate (39) is provided with sliding buckles on both sides, and the arc groove plate (39) is slidably adapted to the inclined groove of the inclined groove block (36) through the sliding buckles. An inner pad ring (37) is snapped into the inclined groove of the inclined groove block (36). The inner pad ring (37) is made of elastic material. An arc groove with a central concave center is opened on the outer side of the arc groove plate (39), and a rubber plate (38) is fixedly installed in the arc groove of the arc groove plate (39).

2. The plasma cutting device for fermentation tank heads according to claim 1, characterized in that: A first cylinder (23) is fixedly installed on the top of the slide plate (22). The first cylinder (23) is evenly installed on the top of the slide plate (22), and the output end of the first cylinder (23) is fixedly connected to the opposite side of the connecting block (29). A first motor (28) is fixedly installed on the top of the inner wall of the bottom support (21). The output end of the first motor (28) is fixedly connected to the center position of the bottom of the slide plate (22).

3. The plasma cutting device for fermentation tank heads according to claim 1, characterized in that: The gun head mechanism (4) includes a side slide plate (401) and a third cylinder (402). The third cylinder (402) is fixedly installed on the inner wall of the frame (1), and the output end of the third cylinder (402) is fixedly connected to both sides of the top of the side slide plate (401). A fourth cylinder (403) is fixedly installed on both the upper and lower sides of the side slide plate (401). A connecting plate (404) is fixedly installed on the output end of the fourth cylinder (403), and a gun barrel (405) is fixedly installed on the outer side of the connecting plate (404).

4. The plasma cutting device for fermentation tank heads according to claim 3, characterized in that: One end of the barrel (405) is curved toward the inner support mechanism (3), and an end cover (406) is fixedly installed at the curved end of the barrel (405). The outer diameter of the end cover (406) gradually decreases as it moves away from the barrel (405). An inner buckle (412) is fixedly installed at the end of the inner wall of the end cover (406) near the barrel (405). An electrode head (409) is fixedly installed on the inner wall of the inner buckle (412).

5. The plasma cutting device for fermentation tank heads according to claim 4, characterized in that: An inner screw cover (410) is fixedly installed on the inner wall of the end cover (406) away from the barrel (405). The inner wall of the inner screw cover (410) is uniformly provided with spiral plates. An inner pad (411) is fixedly installed on the outer side of the electrode head (409). The outer side of the inner pad (411) is in contact with the spiral plate of the inner screw cover (410).

6. The plasma cutting device for fermentation tank heads according to claim 5, characterized in that: A conductive rod (408) is fixedly installed on the inner wall of the gun barrel (405). One end of the conductive rod (408) is fixedly connected to the electrode head (409), and the other end of the conductive rod (408) is electrically connected to the plasma power supply (5). A connecting pipe is provided on the outer side of the gun barrel (405), and the connecting pipe is connected to the air outlet of the air pump (6) through a pipe. A sponge column (407) is fixedly installed on the inner wall of the gun barrel (405).

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