Intelligent plasma cutting apparatus

Abstract

The application relates to the field of plasma cutting, in particular to an intelligent plasma cutting device. The device comprises a machine tool main body and a plasma cutting mechanism; the plasma cutting mechanism comprises a mounting frame, a plasma cutting head arranged on the mounting frame, a top plate installed below the mounting frame through a connecting column, a plurality of coaming plates which are uniformly distributed around the top plate and are hinged at top ends to the top plate, a wind tube arranged on the mounting frame and provided with a dust falling port at a bottom end, a communication assembly communicated between the top plate and the wind tube, a fan rotatably arranged on the inner side of the wind tube, a filter screen I arranged between the dust falling port and the fan, a dust collecting box located below the wind tube, and a switching mechanism for switching the direction of the fan and switching the dust guide member to block the dust falling port or to communicate the dust falling port with the dust collecting box. The device adopts the air extraction and smoke removal mode to filter smoke and discharge clean air, ensures the safe, stable and energy-saving operation of the plasma cutting head, and can prevent workers from being scalded by splashing molten drops by shielding the coaming plates around the plasma cutting head.

Description

Technical Field

[0001] This invention relates to the field of plasma cutting, and in particular to an intelligent plasma cutting device. Background Technology

[0002] A plasma cutting machine is a device that uses a high-temperature plasma arc to melt metal and then blows away the molten slag with a high-speed airflow to achieve cutting. It can cut a variety of conductive metals such as carbon steel, stainless steel, aluminum, and copper. It is especially fast and produces good cut quality when cutting medium and thin plates.

[0003] Some plasma cutting equipment incorporates a water tank to manage dust during cutting. This tank sits beneath the cutting table, with the metal sheet placed on the table and the water positioned below it. During plasma cutting, the high-temperature plasma arc cuts through the metal sheet, and the high-speed airflow impacts the water, causing it to splash upwards through the cut portion of the metal sheet. This splashed water then adheres to the dust generated during cutting, thus achieving dust removal.

[0004] However, the above-mentioned water platform dust removal technology has the following problems: 1. During plasma cutting, water splashed upwards from the water platform will spread to the area of ​​the metal sheet to be cut. When the plasma cutting head moves to these areas, although the high-speed airflow can blow away some of the water, water will still continue to splash onto the cutting path. This means that the high-temperature plasma arc emitted by the plasma cutting head needs to consume some heat to evaporate the water on the cutting path, which is not energy-efficient. 2. During plasma cutting, water splashed upwards from the water platform will splash onto the plasma cutting head. After the water splashes into the high-temperature area inside the torch, it decomposes, destroying the arc stability. This causes the electrode head (usually containing hafnium) to evaporate abnormally quickly and causes corrosion inside the torch (such as nozzles and electrodes), which aggravates component wear. 3. The molten droplets generated during plasma cutting may burn operators near the cutting machine. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing an intelligent plasma cutting device that uses a ventilation and smoke removal method to filter smoke and dust and exhaust clean air, ensuring the safe, stable and energy-efficient operation of the plasma cutting head, and can also block the perimeter of the plasma cutting head with a shield to prevent workers from being burned by molten droplets.

[0006] The technical solution of this invention is an intelligent plasma cutting device, comprising a machine tool body and a plasma cutting mechanism; the plasma cutting mechanism includes a mounting frame, a plasma cutting head mounted on the mounting frame, a top plate mounted below the mounting frame via a connecting column, multiple surrounding plates evenly distributed around the top plate and hinged to the top plate at their top ends, a duct mounted on the mounting frame and having a dust collection port at its bottom end, a connecting component connecting the top plate and the duct, a fan rotatably mounted inside the duct, a filter screen disposed between the dust collection port and the fan, a dust collection box located below the duct, and components for switching the fan direction and switching dust guides to block dust collection. The switching mechanism connects the dust inlet to the dust collection box. When multiple enclosures are closed downwards, the switching mechanism blocks the dust inlet, and the fan blows air towards the outer end of the air duct. The fumes generated during plasma cutting are drawn from the space enclosed by the top plate and enclosures through the connecting component. The fumes are filtered by the filter screen. When multiple enclosures are opened upwards, the switching mechanism connects the dust inlet to the dust collection box, and the fan blows air towards the inner side of the air duct, blowing the fumes on the filter screen into the dust collection box. The upper part of the machine tool body is equipped with a three-dimensional moving module for adjusting the three-dimensional spatial position of the plasma cutting mechanism. Specifically, the mounting bracket is set at the moving end of the three-dimensional moving module.

[0007] Preferably, the switching mechanism includes a telescopic mechanism vertically mounted on the mounting frame, a lifting frame located at the bottom of the telescopic mechanism, a connecting rod hinged between the lifting frame and the enclosure, a side frame located on one side of the lifting frame, a dust guide component that blocks the dust inlet or communicates with the dust inlet, a dust guide pipe connected to the lower part of the dust guide component, a flexible hose connected between the dust guide pipe and the dust collection box, a mounting assembly installed between the side frame and the dust guide component, and a transmission assembly that switches the direction of the fan through the lifting linkage of the side frame.

[0008] Preferably, the mounting assembly includes a slide rod vertically mounted on the side frame, a top platform mounted on the top of the slide rod, a mounting plate slidably mounted on the slide rod, and a spring connecting the side frame and the mounting plate. A dust guide is mounted on the mounting plate.

[0009] Preferably, the transmission assembly includes a bracket at the bottom of the air duct, two pulleys arranged side by side and rotatably mounted on the air duct and the bracket respectively via a rotating shaft, a belt fitted on the two pulleys, and a connecting frame connecting the side frame and the belt. The fan is mounted on the rotating shaft corresponding to the upper pulley.

[0010] Preferably, the dust guide component includes a vertically distributed dust guide frame and two side plates integrally connected to the lower sides of the dust guide frame, with the top of the dust guide frame matching the size of the dust inlet.

[0011] Preferably, the upper and lower parts of the inner side of the dust guide frame are respectively provided with a dust guide surface one and a dust guide surface two, both of which are arc-shaped surfaces.

[0012] Preferably, the dust guide tube includes an integrally connected flared tube section and a bent tube section. The bottom surface of the inner side of the flared tube section is horizontally distributed and connected to the dust guide surface. The cross-sectional area of ​​the inner channel of the flared tube section gradually decreases along the direction away from the dust guide component. The bent tube section is connected to the end of the flared tube section with the smallest cross-sectional area.

[0013] Preferably, the dust collection box is mounted on a side frame, and a conical guide hopper is installed inside the dust collection box. The upper surface of the guide hopper is inclined upwards, and an opening is provided at the bottom of the middle. A fixed frame is provided at the bottom of the guide hopper, and a slide rod two is slidably mounted on the fixed frame. A top platform two is installed at the top of the slide rod two, and a spring two is connected between the top platform two and the fixed frame. A lifting plate is installed at the bottom of the slide rod two, and a blocking platform that can block the opening of the guide hopper is installed on the lifting plate. A filter screen three is installed on the dust collection box at a height lower than the top of the guide hopper.

[0014] Compared with existing technologies, this invention has the following beneficial technical effects: This invention uses a fume extraction method to filter fumes and exhaust clean air, ensuring the safe, stable, and energy-efficient operation of the plasma cutting head. The high-temperature plasma arc emitted by the plasma cutting head can be fully utilized for cutting metal workpieces. Fumes generated during plasma cutting are drawn from the space enclosed by the top plate and surrounding plates through a three-way pipe and a fume extraction pipe, and then filtered through filter screen one to trap fumes and prevent pollution. Multiple surrounding plates simultaneously enclose the plasma cutting head, preventing molten droplets from splattering and burning workers, thus improving equipment safety. When not cutting workpieces, the fan direction is switched to back-blown fumes adhering to filter screen one, cleaning the filter screen one and ensuring its effective filtration of fumes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the plasma cutting mechanism; Figure 3 This is a schematic diagram illustrating the principle and structure of the panel's unfolding and closing. Figure 4 A partial structural cross-sectional view of the fan for dust extraction; Figure 5 This is a partial structural cross-sectional view of the dust guide component connected to the air duct through the dust inlet; Figure 6 This is an exploded view of the dust guide component and dust guide tube. Figure 7 This is a cross-sectional view of the internal structure of the dust collection box.

[0016] Reference numerals: 1. Machine tool body; 2. 3D moving module; 3. Mounting frame; 4. Plasma cutting head; 5. Connecting column; 6. Top plate; 61. Sleeve; 7. Lifting frame; 8. Connecting rod; 9. Enclosure; 91. Guide table; 10. Telescopic mechanism; 11. Side frame; 12. Connecting frame; 13. Belt; 14. Pulley; 15. Air duct; 150. Dust outlet; 151. Filter screen one; 152. Filter screen two; 16. Bracket; 17. Fan; 18. 19. T-joint pipe; 20. Smoke extraction pipe; 21. Slide rod one; 22. Top platform one; 23. Spring one; 24. Mounting plate; 25. Dust guide component; 26. Dust guide frame; 27. Dust guide surface one; 28. Dust guide surface two; 29. ​​Side plate; 20. Dust guide pipe; 20. Flexible hose; 21. Dust collection box; 22. Guide hopper; 23. Blocking platform; 34. Lifting plate; 35. Slide rod two; 36. Spring two; 37. Fixing frame; 38. Filter screen three. Detailed Implementation

[0017] like Figures 1-7 As shown in the figure, the intelligent plasma cutting equipment proposed in this embodiment includes a machine tool body 1 and a plasma cutting mechanism. A three-dimensional moving module 2 for adjusting the three-dimensional spatial position of the plasma cutting mechanism is provided on the upper part of the machine tool body 1. Specifically, the mounting frame 3 in the plasma cutting mechanism is set at the moving end of the three-dimensional moving module 2.

[0018] The plasma cutting mechanism includes a mounting frame 3, a plasma cutting head 4 mounted on the mounting frame 3, a top plate 6 mounted below the mounting frame 3 via a connecting column 5, multiple surrounding plates 9 evenly distributed around the top plate 6 and hinged to the top plate 6 at their top ends, a duct 15 mounted on the mounting frame 3 and having a dust collection port 150 at its bottom end, a connecting assembly connecting the top plate 6 and the duct 15, a fan 17 rotatably mounted inside the duct 15, a filter screen 151 positioned between the dust collection port 150 and the fan 17, a dust collection box 27 located below the duct 15, and a switching mechanism for switching the direction of the fan 17 and switching the dust guide 24 to block the dust collection port 150 or to connect the dust collection port 150 to the dust collection box 27. The connecting assembly includes two smoke extraction pipes 19 connected to the top plate 6 and a three-way pipe 18 connecting the duct 15 and the two smoke extraction pipes 19.

[0019] The enclosure 9 is an arc-shaped plate. When multiple enclosures 9 are closed downwards, the switching mechanism blocks the dust inlet 150, and the fan 17 blows air towards the outer end of the air duct 15. The fumes generated by the plasma cutting head 4 during cutting are drawn from the space enclosed by the top plate 6 and the enclosure 9 through the connecting component. The fumes are filtered by the filter screen 151. Treating the fumes by suction is safer than using water for dust removal and will not damage the plasma cutting head 4. A guide platform 91 can be set on the inner side of the bottom of the enclosure 9. The guide platform 91 has a slope, which can better guide the fumes upwards when it moves with the plasma cutting head 4. When multiple enclosures 9 are unfolded upwards, the switching mechanism connects the dust inlet 150 to the dust collection box 27, and the fan 17 blows air towards the inner side of the air duct 15, blowing the dust on the filter screen 151 into the dust collection box 27.

[0020] A filter screen 152 can be added to the outer end of the air duct 15 to prevent debris in the outside air from being sucked into the air duct 15 when the fan 17 blows air towards the inside of the air duct 15.

[0021] like Figures 2-5 As shown, the switching mechanism includes a telescopic mechanism 10 vertically mounted on the mounting frame 3, a lifting frame 7 located at the bottom of the telescopic mechanism 10, a connecting rod 8 hinged between the lifting frame 7 and the enclosure 9, a side frame 11 located on one side of the lifting frame 7, a dust guide 24 blocking the dust outlet 150 or communicating with the dust outlet 150, a dust guide pipe 25 connected to the lower part of the dust guide 24, a flexible hose 26 connecting the dust guide pipe 25 and the dust collection box 27, a mounting assembly installed between the side frame 11 and the dust guide 24, and a transmission assembly that switches the orientation of the fan 17 through the lifting linkage of the side frame 11. The telescopic mechanism 10 can be an electric push rod. When the telescopic mechanism 10 extends, it drives the lifting frame 7 to move downward, pushing the enclosure 9 downward through the connecting rod 8. Multiple enclosures 9 gradually close together, forming a space inside together with the top plate 6. The fumes generated when the plasma cutting head 4 cuts the workpiece are blocked inside this space, and the molten droplets generated when cutting the workpiece are also blocked by the enclosure 9, preventing them from splashing onto the workers. A sleeve 61, extending vertically through the bottom center of the top plate 6, is provided. The plasma cutting head 4 passes through the sleeve 61. By providing the sleeve 61, the plasma cutting head 4 is protected, preventing molten droplets from splashing onto the surrounding plate 9 and then back onto the plasma cutting head 4, thus preventing damage to the plasma cutting head 4. The dust guide 24, dust guide pipe 25, hose 26, and dust collection box 27 are connected in sequence. When the dust collection box 27 and the dust guide pipe 25 undergo relative displacement, the hose 26 will not cause interference between the structures.

[0022] like Figure 4As shown, the mounting assembly includes a slide rod 20 vertically mounted on the side frame 11, a top platform 21 mounted on the top of the slide rod 20, a mounting plate 23 slidably mounted on the slide rod 20, and a spring 22 connecting the side frame 11 and the mounting plate 23. A dust guide 24 is mounted on the mounting plate 23. When the dust guide 24 blocks the dust outlet 150, the mounting plate 23 contacts the top platform 21. As the side frame 11 rises with the lifting frame 7, the side frame 11 drives the mounting plate 23 to rise via the slide rod 20 and spring 22. The mounting plate 23 then drives the dust guide component 24 to rise. The dust guide component 24 blocks the transverse channel inside the air duct 15, separating the three-way pipe 18 from the fan 17, but it connects the air duct 15 and the dust guide component 24. When the fan 17 is switched to a different direction, it can blow off the dust adhering to the filter screen 151. The dust flows along the dust guide component 24 and enters the dust collection box 27 through the dust guide pipe 25 and the hose 26 for collection. When the dust guide component 24 is connected to the air duct 15, the top of the dust guide pipe 25 abuts against the bottom surface of the air duct 15, blocking the lower right side of the dust outlet 150, ensuring that dust can enter the dust guide component 24 and the dust guide pipe 25 through the dust outlet 150.

[0023] like Figure 4 As shown, the transmission assembly includes a bracket 16 at the bottom of the air duct 15, two pulleys 14 arranged side-by-side and rotatably mounted on the air duct 15 and bracket 16 respectively via a rotating shaft, a belt 13 fitted onto the two pulleys 14, and a connecting frame 12 connecting the side frame 11 and the belt 13. The fan 17 is mounted on the rotating shaft corresponding to the upper pulley 14. When the side frame 11 rises, the connecting frame 12 drives the belt 13 to move, the belt 13 drives the pulleys 14 to rotate, and the pulleys 14 drive the fan 17 to rotate via the rotating shaft, thereby switching the direction of the fan 17. When the dust guide 24 rises to its maximum height, as the side frame 11 continues to rise, the spring 22 is compressed, and the connecting frame 12 continues to drive the belt 13 to move, thereby switching the direction of the fan 17. That is to say, when the dust guide 24 reaches its maximum height, the fan 17 only rotates a certain angle (less than 90 degrees) and has not yet fully rotated 180 degrees. The dust guide 24 is adjusted to its position before the fan 17, and the fan 17 can continue to run during the adjustment process.

[0024] This cutting equipment integrates a central controller, which can intelligently control the fan 17 to perform backflushing within a preset time period. For example, after the fan 17 is switched to the backflushing position, it can continue to run for 10 or 20 seconds under the control of the central controller, or it can be set to other times to ensure that the filter screen 151 is effectively cleaned by backflushing, preventing the filter screen 151 from becoming clogged and affecting the flue gas treatment of the entire cutting equipment. The advantage of this design is that before the fan 17 rotates to the position that can blow the dust off the filter screen 151, the dust guide 24 blocks the transverse channel inside the air duct 15, preventing the dust from being backflushed to the three-way pipe 18 through the gap between the dust guide 24 and the air duct 15, and preventing the dust from flowing back into the plasma cutting head 4 area through the smoke extraction pipe 19, thus preventing damage to the plasma cutting head 4.

[0025] like Figure 5 and Figure 6 As shown, the dust guide component 24 includes a vertically distributed dust guide frame 241 and two side plates 242 integrally connected to the lower sides of the dust guide frame 241. The top of the dust guide frame 241 matches the size of the dust outlet 150. Both the side plates 242 and the dust guide tube 25 are provided with perforated lugs, which can be used to securely connect the two structures at the lugs with bolts and nuts. When the dust guide component 24 rises to its maximum height, the top of the side plate 242 abuts against the bottom surface of the air duct 15. When the dust guide component 24 moves down to its maximum position, the top of the dust guide frame 241 exactly blocks the dust outlet 150.

[0026] like Figure 6 As shown, the upper and lower parts of the inner side of the dust guide frame 241 are respectively provided with a dust guide surface 1 2411 and a dust guide surface 2412. Both the dust guide surface 1 2411 and the dust guide surface 2412 are arc-shaped surfaces. The dust guide surface 1 2411 guides the air downward, and the dust guide surface 2412 guides the air horizontally. It can guide the dust-laden air from the air duct 15 through the dust guide component 24 to the dust guide pipe 25, and continue to be transported to the dust collection box 27 through the hose 26.

[0027] like Figure 6 As shown, the dust guide pipe 25 includes an integrally connected flared pipe section and a bent pipe section. The bottom surface of the inner side of the flared pipe section is horizontally distributed and connected to the dust guide surface 2412, which is more conducive to receiving the dust-laden air blown in, and the dust will also be more easily carried by the wind into the dust collection box 27. The cross-sectional area of ​​the inner channel of the flared pipe section gradually decreases along the direction away from the dust guide component 24, and the bent pipe section is connected to the end with the smallest cross-sectional area of ​​the flared pipe section, thereby collecting and transporting the dust-laden air.

[0028] like Figure 4 and Figure 7As shown, the dust collection box 27 is mounted on the side frame 11. Inside the dust collection box 27 is a conical guide hopper 28. The upper surface of the guide hopper 28 is inclined upwards, and an opening is provided at the bottom center, allowing dust-laden air to enter the dust collection box 27 through a flexible hose 26. A fixed frame 33 is located at the bottom of the guide hopper 28. A sliding rod 31 is slidably mounted on the fixed frame 33. A top platform 32 is installed at the top of the sliding rod 31, and a spring 32 connects the top platform 31 and the fixed frame 33. A lifting plate 30 is installed at the bottom of the sliding rod 31, and a blocking platform 29 is installed on the lifting plate 30 to seal the opening of the guide hopper 28. A filter screen 34, lower than the height of the top of the guide hopper 28, is installed on the dust collection box 27. Dust-laden air impacts the blocking platform 29, pushing it downwards. Spring 32 is compressed, and the air flows downwards from the area between the blocking platform 29 and the opening, entering the lower part of the dust collection box 27. The dust remains in the dust collection box 27, while the air is discharged through filter 34. After the fan 17 finishes backflushing, there is no more airflow impacting the blocking platform 29. Spring 32 extends, and the blocking platform 29 re-seals the opening, preventing dust from escaping from the inside of the dust collection box 27. A door can be opened on the side of the dust collection box 27, allowing for centralized cleaning of the collected dust.

[0029] This embodiment employs a fume extraction method to filter fumes and exhaust clean air, ensuring the safe, stable, and energy-efficient operation of the plasma cutting head. The high-temperature plasma arc emitted by the plasma cutting head 4 is fully utilized for cutting metal workpieces. During cutting, the fan 17 blows air outward, creating suction within the air duct 15. The fumes generated during plasma cutting are drawn from the space enclosed by the top plate 6 and the surrounding plates 9 through the three-way pipe 18 and the fume extraction pipe 19. The fumes are then filtered through the filter screen 151, trapping the dust, and discharged from the outside of the air duct 15, preventing pollution. Multiple surrounding plates 9 simultaneously enclose the plasma cutting head 4, preventing molten droplets from splattering and burning workers, thus improving equipment safety. When not cutting the workpiece, unfold the enclosure 9 and simultaneously switch the direction of the fan 17. Use the fan 17 to blow back the dust adhering to the filter screen 151 to clean the filter screen 151 and blow the dust into the dust collection box 27 for centralized collection. This ensures that the filter screen 151 can still effectively filter the dust when cutting the workpiece later.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An intelligent plasma cutting device, characterized in that, include: The plasma cutting mechanism includes a mounting frame (3), a plasma cutting head (4) mounted on the mounting frame (3), a top plate (6) mounted below the mounting frame (3) via a connecting column (5), multiple surrounding plates (9) evenly distributed around the top plate (6) and hinged to the top plate (6) at their top ends, a duct (15) mounted on the mounting frame (3) and having a dust collection port (150) at its bottom end, a connecting assembly connecting the top plate (6) and the duct (15), a fan (17) rotatably mounted inside the duct (15), a filter screen (151) disposed between the dust collection port (150) and the fan (17), a dust collection box (27) located below the duct (15), and a device for switching the direction of the fan (17). The switching mechanism switches the dust guide (24) to block the dust outlet (150) or connects the dust outlet (150) to the dust collection box (27). When the multiple enclosures (9) are closed downwards, the switching mechanism blocks the dust outlet (150), and the fan (17) blows air towards the outer end of the air duct (15). The smoke generated by the plasma cutting head (4) during cutting is drawn from the space enclosed by the top plate (6) and the enclosures (9) through the connecting component. The smoke is filtered by the first filter screen (151). When the multiple enclosures (9) are unfolded upwards, the switching mechanism connects the dust outlet (150) to the dust collection box (27), and the fan (17) blows air towards the inside of the air duct (15), blowing the smoke on the first filter screen (151) into the dust collection box (27). The machine tool body (1) is equipped with a three-dimensional moving module (2) on the upper part for adjusting the three-dimensional spatial position of the plasma cutting mechanism.

2. The intelligent plasma cutting equipment according to claim 1, characterized in that, The switching mechanism includes a telescopic mechanism (10) vertically mounted on the mounting frame (3), a lifting frame (7) mounted at the bottom of the telescopic mechanism (10), a connecting rod (8) hinged between the lifting frame (7) and the enclosure (9), a side frame (11) mounted on one side of the lifting frame (7), a dust guide (24) that blocks the dust outlet (150) or communicates with the dust outlet (150), a dust guide pipe (25) connected to the lower part of the dust guide (24), a flexible hose (26) connected between the dust guide pipe (25) and the dust collection box (27), a mounting assembly installed between the side frame (11) and the dust guide (24), and a transmission assembly that switches the orientation of the fan (17) through the lifting linkage of the side frame (11).

3. The intelligent plasma cutting equipment according to claim 2, characterized in that, The mounting assembly includes a slide bar (20) vertically mounted on the side frame (11), a top platform (21) mounted on the top of the slide bar (20), a mounting plate (23) slidably mounted on the slide bar (20), and a spring (22) connecting the side frame (11) and the mounting plate (23). A dust guide (24) is mounted on the mounting plate (23).

4. The intelligent plasma cutting equipment according to claim 2, characterized in that, The transmission assembly includes a bracket (16) at the bottom of the air duct (15), two pulleys (14) arranged side by side and rotatably mounted on the air duct (15) and the bracket (16) respectively via a rotating shaft, a belt (13) fitted on the two pulleys (14), and a connecting frame (12) connecting the side frame (11) and the belt (13). The fan (17) is mounted on the rotating shaft corresponding to the upper pulley (14).

5. The intelligent plasma cutting equipment according to claim 2, characterized in that, The dust guide (24) includes a vertically distributed dust guide frame (241) and two side plates (242) integrally connected to the lower sides of the dust guide frame (241). The top of the dust guide frame (241) matches the size of the dust outlet (150).

6. The intelligent plasma cutting equipment according to claim 5, characterized in that, The upper and lower parts of the inner side of the dust guide frame (241) are respectively provided with dust guide surface one (2411) and dust guide surface two (2412), both of which are arc-shaped surfaces.

7. The intelligent plasma cutting equipment according to claim 6, characterized in that, The dust guide tube (25) includes an integrally connected flared tube section and a bent tube section. The bottom surface of the inner side of the flared tube section is horizontally distributed and connected to the dust guide surface two (2412). The cross-sectional area of ​​the inner channel of the flared tube section gradually decreases along the direction away from the dust guide component (24). The bent tube section is connected to the end of the flared tube section with the smallest cross-sectional area.

8. The intelligent plasma cutting equipment according to claim 1, characterized in that, The dust collection box (27) is set on the side frame (11). A conical guide hopper (28) is set inside the dust collection box (27). The upper surface of the guide hopper (28) is inclined upwards, and an opening is set at the bottom of the middle part. A fixed frame (33) is set at the bottom of the guide hopper (28). A slide rod (31) is slidably set on the fixed frame (33). A top platform (2) is installed at the top of the slide rod (31). A spring (32) is connected between the top platform (2) and the fixed frame (33). A lifting plate (30) is installed at the bottom of the slide rod (31). A blocking platform (29) that can block the opening of the guide hopper (28) is installed on the lifting plate (30). A filter screen (34) with a height lower than the top of the guide hopper (28) is set on the dust collection box (27).

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