A plasma cutting machine for photovoltaic steel structure processing

By using screening mechanism, ash retaining mechanism and connecting components in the plasma cutting machine for photovoltaic steel structure processing, the problem of smoke and metal dust diffusion is solved, and effective dust cleaning and improvement of the workshop environment is achieved.

CN119772335AInactive Publication Date: 2025-04-08NANTONG CHENGLI STEEL STRUCTURE ENG CO LTD
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Patent Information

Application Number
CN202411784628.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-04-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a plasma cutting machine for photovoltaic steel structure processing, which relates to the technical field of plasma cutting and solves the problem that smoke and metal dust falling into a collecting tank will be blown up together in the process of high-pressure gas blowing away slag, and since the smoke and metal dust are light in weight, the smoke and metal dust will diffuse in the processing workshop with the flow of gas. The invention comprises a machine base, and a hollow cavity is arranged inside the machine base, and a layer of fine sand is laid on the inner bottom of the machine base; a screening mechanism is used to separate the slag and fine sand generated by cutting, and the screening mechanism is installed inside the hollow cavity of the machine base; an ash blocking mechanism is used to prevent the dust generated in the screening process from diffusing from the inside of the machine base; the invention installs the screening mechanism, the ash blocking mechanism and the connecting assembly, which is conducive to the swing of the inclined screen to guide the slag to the inclined guide plate, and can effectively prevent the metal dust from diffusing from the inside of the machine base with the gas and being inhaled by the human body.
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Description

Technical Field

[0001] The invention relates to the technical field of plasma cutting, in particular to a plasma cutting machine for processing photovoltaic steel structures. Background Art

[0002] Photovoltaic solar panels refer to devices that use the photovoltaic effect of semiconductor materials under light conditions to directly convert solar energy into electrical energy. Photovoltaic solar panels need to be supported by brackets. The main function of photovoltaic brackets is to fix and support photovoltaic components to ensure that they can be safely and firmly installed in specific locations, while optimizing the performance of the components and improving power generation efficiency. During the production and processing of photovoltaic brackets, plasma cutting machines are required to cut them.

[0003] When a plasma cutting machine is cutting a photovoltaic bracket, a certain amount of slag will be generated, and the slag will fall into the collection tank in the plasma cutting machine. In order to facilitate the cleaning of the slag in the collection tank of the plasma cutting machine, a plasma cutting machine on the market is equipped with multiple high-pressure nozzles. The multiple high-pressure nozzles can move inside the plasma cutting machine, and during the movement, the high-pressure nozzles blow out gas to gradually blow the slag in the collection tank into the collection box at the end of the machine tool, so that the slag in the collection tank can be cleaned. However, during the use of the above device, since the plasma cutting machine will not only generate slag in the process of cutting metal, but also generate a large amount of smoke and metal dust, this will cause the smoke and metal dust in the collection tank to be blown up together in the process of high-pressure gas blowing away the slag. Since the mass of smoke and metal dust is relatively light, the smoke and metal dust will spread in the processing workshop with the flow of gas, which will not only cause a bad workshop environment, but also cause damage to the human body when the gas containing metal dust is inhaled into the human body, endangering the health of the workshop personnel. Summary of the invention

[0004] The purpose of the present invention is to provide a plasma cutting machine for photovoltaic steel structure processing to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A plasma cutting machine for photovoltaic steel structure processing, comprising a machine base, wherein a hollow cavity is arranged inside the machine base, and a layer of fine sand is laid on the inner bottom of the machine base; a screening mechanism for separating slag and fine sand generated by cutting, wherein the screening mechanism is installed inside the hollow cavity of the machine base; an ash blocking mechanism for preventing dust generated during the screening process from spreading from inside the machine base, wherein the ash blocking mechanism is installed on the outside of the machine base, wherein the number of the ash blocking mechanisms is two and the ash blocking mechanisms are symmetrically distributed; a connecting assembly for driving the screening mechanism to swing back and forth, wherein the number of the connecting assemblies is two and the ash blocking mechanisms are symmetrically distributed, and wherein the connecting assembly is installed between the screening mechanism and the ash blocking mechanism.

[0006] Preferably, the screening mechanism includes an inclined screen installed inside the machine base, a fence is fixedly installed on the outer side of the inclined screen, and the right end of the fence is in an open state, the fence is used to prevent slag from falling from the inclined screen into the fine sand, the right end of the inclined screen is movably abutted with an inclined baffle, and the inclined baffle is rotatably connected to the fence through a connecting shaft, a counterweight bar is fixedly connected to the upper end of the inclined baffle, two symmetrically distributed reinforcement seats are fixedly installed on the outer side of the enclosure, and two symmetrically distributed electric push rods are fixedly installed on the upper end of the reinforcement seat.

[0007] Preferably, the upper end of the electric push rod is fixedly connected to a support frame, and the support frame can move forward and backward in the hollow cavity of the base, and the upper end of the support frame is fixedly mounted with four limit wheels distributed in a rectangular array, the limit wheels are used to prevent the support frame from separating from the base, the limit wheels are in rolling contact with the base through reserved grooves, and the upper end of the support frame is also fixedly embedded with four limit blocks distributed in a rectangular array, and the limit blocks are in sliding contact with the base through limit straight grooves.

[0008] Preferably, a spring is fixedly installed at the rear end of the limit block, and one end of the spring away from the limit block is movably abutted against the machine base, a baffle 1 is movably abutted against the outer side of the counterweight bar, and the baffle 1 is fixedly connected to the machine base through a plurality of positioning rods distributed in a rectangular array, a baffle 2 is fixedly installed inside the hollow cavity of the machine base, and the baffle 2 is located on the right side of the baffle 1, an inclined guide plate is fixedly installed on the right side of the baffle 2, and the inclined guide plate is used to transfer slag to the outside of the machine base, and the connection between the inclined guide plate and the machine base is a fixed connection.

[0009] Preferably, an elastic band is installed between the inclined screen and the inclined baffle, and both ends of the elastic band are fixedly adhered to the inclined screen and the inclined baffle respectively, and the elastic band is used to prevent debris from getting stuck in the gap between the inclined screen and the inclined baffle.

[0010] Preferably, the dust blocking mechanism includes a blower fixedly mounted on the outside of the base, a driving motor is fixedly mounted on a side of the blower away from the base, a U-shaped tube connected to the air outlet end of the blower is fixedly mounted, and the U-shaped tube is fixedly mounted on the outside of the base, a plurality of blowing pipes are fixedly mounted on the outside of the U-shaped tube, and the blowing pipes pass through the side wall of the base, and the plurality of blowing pipes blow out gas in a hollow cavity in the base, thereby forming a wind screen inside the base to prevent dust from spreading.

[0011] Preferably, the connecting assembly includes a gearbox fixedly connected to the impeller shaft inside the blower, and the impeller shaft of the blower is rotatably connected to the side wall of the base through a bearing, and the output end of the gearbox is fixedly connected to a connecting seat, and the gearbox is used to slow down the rotation speed of the output shaft.

[0012] Preferably, a plurality of top rods equidistantly distributed in a circle are fixedly embedded on the outer side of the connecting seat, and a ball is movably embedded on the end of the top rod away from the connecting seat. A baffle is fixedly installed on the lower end of the support frame corresponding to the connecting seat, and the connection between the ball and the baffle is rolling contact, and the ball is used to reduce the friction resistance between the top rod and the baffle.

[0013] Preferably, both ends of the inclined baffle connecting shaft are equipped with deceleration assemblies, and the deceleration assembly includes rotating blocks fixedly installed on both ends of the inclined baffle connecting shaft, and the two rotating blocks are located on the outside of the enclosure, and the outer side of the rotating block is movably sleeved with an arc guide rail, and the connection between the arc guide rail and the enclosure is a fixed connection, a vertical portion is provided on the right side of the arc guide rail, and the connection between the rotating block and the vertical portion is a movable abutment, the vertical portion is used to limit the rotation angle of the rotating block, and a cam is installed at one end of the rotating block close to the arc guide rail.

[0014] Preferably, the cam is rotatably connected to the rotating block via a positioning shaft, two symmetrically distributed coil springs are fixedly sleeved on the outer side of the positioning shaft, and the outer ends of the coil springs are fixedly connected to the rotating block, a flexible pad is fixedly sleeved on the outer side of the cam, and the flexible pad is used to increase the friction resistance between the cam and the arc guide rail, a limited rotation groove is provided on the rotating block corresponding to the location where the cam is installed, a limited contact groove is provided on the side of the arc guide rail close to the flexible pad, and the flexible pad is in sliding contact with the arc guide rail through the limited contact groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention installs a screening mechanism, an ash blocking mechanism and a connecting component. The blower in the ash blocking mechanism runs to form a wind screen inside the machine base to block ash. The rotating shaft of the blower impeller drives multiple top rods to rotate through a gearbox, and can drive the inclined screen to swing back and forth through the blocking bar, which is conducive to the swing of the inclined screen to guide the slag to the inclined guide plate, and can effectively prevent metal dust from diffusing from the inside of the machine base with the gas and being inhaled by the human body.

[0016] 2. The present invention lays fine sand on the inner bottom of the machine base, and the inclined screen can swing back and forth and be buried in the fine sand, so that the surface of the inclined screen is also covered with a layer of fine sand, which can separate the slag and the inclined screen, thereby effectively preventing the slag from falling directly on the inclined screen to cool and solidify, and effectively reducing the difficulty of slag cleaning.

[0017] 3. The present invention installs a deceleration component. When the electric push rod drives the inclined screen to move up to separate slag and fine sand, the inclined baffle can automatically rotate and open under the action of the gravity of the counterweight bar. During the opening process, the flexible pad in the deceleration component contacts and rubs with the arc guide rail through the limiting contact groove, which can effectively slow down the rotation speed of the inclined baffle, thereby preventing the rotating block from directly hitting the vertical part under the action of inertia, and preventing the connection between the rotating block and the connecting shaft of the inclined baffle from cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall front side section of the present invention; Figure 3 It is a right side sectional schematic diagram of the whole present invention; Figure 4 It is a schematic diagram of the internal structure of the base of the present invention; Figure 5 This is a schematic diagram of the connection between the dust blocking mechanism, the connecting assembly and the supporting frame of the present invention; Figure 6 It is an overall schematic diagram of the screening mechanism of the present invention; Figure 7 For the present invention Figure 6 The side section diagram at A in the middle; Figure 8 It is a schematic diagram of the side section of the rotating block and the split arc guide rail of the present invention.

[0019] In the figure: 1. base; 2. inclined screen; 3. enclosure; 4. inclined baffle; 5. counterweight bar; 6. reinforcement seat; 7. electric push rod; 8. support frame; 9. limit wheel; 10. limit block; 11. spring; 12. baffle 1; 13. positioning rod; 14. baffle 2; 15. inclined guide plate; 16. blower; 17. drive motor; 18. U-shaped tube; 19. injection tube; 20. gearbox; 21. connecting seat; 22. push rod; 23. ball; 24. baffle bar; 25. rotating block; 26. arc guide rail; 27. vertical part; 28. cam; 29. ​​positioning shaft; 30. coil spring; 31. flexible pad; 32. limit rotation groove; 33. limit contact groove; 34. elastic belt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-Figure 6 The plasma cutting machine for photovoltaic steel structure processing shown in the figure includes a machine base 1, and a hollow cavity is arranged inside the machine base 1, and a layer of fine sand is laid on the inner bottom of the machine base 1; a screening mechanism is used to separate slag and fine sand generated by cutting, and the screening mechanism is installed inside the hollow cavity of the machine base 1; an ash blocking mechanism is used to prevent dust generated during the screening process from spreading from the inside of the machine base 1, and the ash blocking mechanism is installed on the outside of the machine base 1, and the number of ash blocking mechanisms is two groups, and they are symmetrically distributed; a connecting component is used to drive the screening mechanism to swing back and forth, and the number of connecting components is two groups, and they are symmetrically distributed, and the connecting component is installed between the screening mechanism and the ash blocking mechanism.

[0022] The screening mechanism includes an inclined screen 2 installed inside the machine base 1, a fence 3 is fixedly installed on the outer side of the inclined screen 2, and the right end of the fence 3 is in an open state. The fence 3 is used to prevent the slag from falling from the inclined screen 2 into the fine sand. The right end of the inclined screen 2 is movably abutted with an inclined baffle 4, and the inclined baffle 4 is rotatably connected to the fence 3 through a connecting shaft, and a counterweight bar 5 is fixedly connected to the upper end of the inclined baffle 4. Two symmetrically distributed reinforcement seats 6 are fixedly installed on the outer side of the fence 3, and two symmetrically distributed electric push rods 7 are fixedly installed on the upper end of the reinforcement seat 6.

[0023] The upper end of the electric push rod 7 is fixedly connected to a support frame 8, and the support frame 8 can move forward and backward in the hollow cavity of the base 1. Four limiting wheels 9 distributed in a rectangular array are fixedly installed on the upper end of the support frame 8. The limiting wheels 9 are used to prevent the support frame 8 from separating from the base 1. The limiting wheels 9 are in rolling contact with the base 1 through the reserved grooves. Four limiting blocks 10 distributed in a rectangular array are also fixedly embedded on the upper end of the support frame 8, and the limiting blocks 10 are in sliding contact with the base 1 through the limiting straight grooves.

[0024] A spring 11 is fixedly installed at the rear end of the limit block 10, and the end of the spring 11 away from the limit block 10 is movably abutted against the machine base 1, a baffle 12 is movably abutted against the outer side of the counterweight bar 5, and the baffle 12 is fixedly connected to the machine base 1 through a plurality of positioning rods 13 distributed in a rectangular array, a baffle 2 14 is fixedly installed inside the hollow cavity of the machine base 1, and the baffle 2 14 is located on the right side of the baffle 1 12, and an inclined guide plate 15 is fixedly installed on the right side of the baffle 2 14, the inclined guide plate 15 is used to transfer slag to the outside of the machine base 1, and the connection between the inclined guide plate 15 and the machine base 1 is a fixed connection.

[0025] The dust blocking mechanism includes a blower 16 fixedly installed on the outside of the machine base 1, a driving motor 17 is fixedly installed on the side of the blower 16 away from the machine base 1, a U-shaped tube 18 connected to the blower 16 is fixedly installed at the air outlet end, and the U-shaped tube 18 is fixedly installed on the outside of the machine base 1, a plurality of blowing tubes 19 are fixedly installed on the outside of the U-shaped tube 18, and the blowing tubes 19 penetrate the side wall of the machine base 1, and the plurality of blowing tubes 19 blow out gas in the hollow cavity in the machine base 1, so as to form a wind screen inside the machine base 1 to prevent dust from spreading.

[0026] The connecting assembly includes a gearbox 20 fixedly connected to the impeller shaft inside the blower 16, and the impeller shaft of the blower 16 is rotatably connected to the side wall of the base 1 through a bearing. The output end of the gearbox 20 is fixedly connected to a connecting seat 21, and the gearbox 20 is used to slow down the rotation speed of the output shaft.

[0027] A plurality of circumferentially equidistantly distributed top rods 22 are fixedly embedded on the outer side of the connecting seat 21, and a ball 23 is movably embedded at one end of the top rod 22 away from the connecting seat 21. A baffle 24 is fixedly installed at the lower end of the support frame 8 corresponding to the connecting seat 21, and the connection between the ball 23 and the baffle 24 is rolling contact. The ball 23 is used to reduce the friction resistance between the top rod 22 and the baffle 24.

[0028] Working principle: After the plasma cutting machine cuts the photovoltaic panel steel structure support, the electric push rod 7 drives the inclined screen 2 to move up, and at the same time drives the motor 17 to drive the blower 16 to operate. After the electric push rod 7 drives the inclined screen 2 to move up a certain distance, the inclined baffle 4 is no longer blocked by the baffle 12, so the inclined baffle 4 will automatically rotate and open under the gravity of the counterweight bar 5, and the inclined baffle 4 will be located on the upper side of the baffle 2 14, and the blower 16 is running. The rotating shaft of the impeller of the blower 16 drives the impeller 14 to rotate. The output end of the gearbox 20 rotates, and the plurality of push rods 22, in the process of rotating with the output end of the gearbox 20, cooperate with the compression elastic force of the spring 11, and can drive the inclined screen 2 to swing back and forth through the baffle bar 24. In the process of swinging back and forth, the inclined screen 2 can not only screen off the fine sand and dust on the upper side of the inclined screen 2, but also accelerate the slag to roll down along the upper end surface of the inclined screen 2 to the inclined guide plate 15. At this time, the personnel opens the sealing door on the front side of the inclined guide plate 15, so that the slag can be quickly discharged from the inside of the base 1; Since the blower 16 is in operation during the screening and discharging process of the inclined screen 2, the blower 16 sends gas into the U-shaped tube 18, and the gas in the U-shaped tube 18 is ejected through a plurality of blowing pipes 19, so that the gas can form a wind screen inside the machine base 1, which can prevent the metal dust from being diffused with the gas and inhaled by the human body during the screening and discharging process of the inclined screen 2; When the inclined screen 2 discharges the slag, the electric push rod 7 drives the inclined screen 2 to move downward. During the downward movement of the inclined screen 2, the driving assembly still drives the inclined screen 2 to swing back and forth. The inclined screen 2 resists the fine sand and then swings back and forth, which is beneficial for the inclined screen 2 to be buried in the fine sand and for the fine sand on the upper side of the inclined screen 2 to be evenly distributed. Since the upper end surface of the inclined screen 2 is covered with fine sand, when the slag falls on the inclined screen 2, the slag will not directly contact the inclined screen 2 due to the obstruction of the fine sand, thereby effectively preventing the slag from adhering to the inclined screen 2 after cooling, and effectively reducing the difficulty of cleaning the slag. Example 2: Please refer to Figure 6 , Figure 7 , this embodiment further explains the first embodiment, both ends of the connecting shaft of the inclined baffle plate 4 are equipped with a reduction assembly, the reduction assembly includes a rotating block 25 fixedly installed on both ends of the connecting shaft of the inclined baffle plate 4, and the two rotating blocks 25 are both located on the outside of the enclosure 3, the outer side of the rotating block 25 is movably sleeved with an arc guide rail 26, and the connection between the arc guide rail 26 and the enclosure 3 is a fixed connection, a vertical portion 27 is provided on the right side of the arc guide rail 26, and the connection between the rotating block 25 and the vertical portion 27 is a movable abutment, the vertical portion 27 is used to limit the rotation angle of the rotating block 25, and a cam 28 is installed at one end of the rotating block 25 close to the arc guide rail 26.

[0029] The cam 28 is rotatably connected to the rotating block 25 via a positioning shaft 29. Two symmetrically distributed coil springs 30 are fixedly sleeved on the outer side of the positioning shaft 29, and the outer ends of the coil springs 30 are fixedly connected to the rotating block 25. A flexible pad 31 is fixedly sleeved on the outer side of the cam 28. The flexible pad 31 is used to increase the friction resistance between the cam 28 and the arc guide rail 26. A limited rotation groove 32 is provided on the rotating block 25 at a location corresponding to the installation of the cam 28. A limited contact groove 33 is provided on the side of the arc guide rail 26 close to the flexible pad 31, and the flexible pad 31 is in sliding contact with the arc guide rail 26 through the limited contact groove 33.

[0030] In this embodiment: when the inclined baffle 4 rotates clockwise to open automatically, the cam 28 is blocked by the limit rotation groove 32 and cannot rotate. At this time, the flexible pad 31 on the outer side of the cam 28 directly contacts and rubs with the arc guide rail 26 through the limit contact groove 33, increasing the rotation resistance of the rotating block 25, thereby effectively reducing the rotation speed of the inclined baffle 4, and preventing the rotating block 25 from directly hitting the vertical part 27 under the action of inertia, preventing the connection between the rotating block 25 and the connecting shaft of the inclined baffle 4 from cracking, and effectively extending the service life of the inclined baffle 4; When the electric push rod 7 drives the inclined screen 2 to move downward, the inclined baffle 4 will rotate and reset under the drive of the baffle 12. During the rotation and reset of the inclined baffle 4 and the rotating block 25, the cam 28 can rotate inside the rotating block 25. At this time, the resistance generated by the flexible pad 31 to the rotating block 25 can be ignored. In actual use, in order to prevent sand from entering the limiting rotating groove 32, a protective cover or other protective structure can be installed on the outside of the arc guide rail 26. Example 3: Please refer to Figure 2 , Figure 8 This embodiment further explains Example 1. An elastic band 34 is installed between the inclined screen 2 and the inclined baffle 4, and the two ends of the elastic band 34 are fixedly adhered to the inclined screen 2 and the inclined baffle 4 respectively. The elastic band 34 is used to prevent debris from getting stuck in the gap between the inclined screen 2 and the inclined baffle 4.

[0031] In this embodiment: after the inclined baffle 4 is automatically opened, the elastic band 34 will be stretched during the rotation of the inclined baffle 4. The stretched elastic band 34 blocks the gap between the inclined baffle 4 and the inclined screen 2, which can prevent slag from getting stuck in the gap between the inclined baffle 4 and the inclined screen 2, causing the inclined baffle 4 to be unable to fully rotate and reset.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plasma cutting machine for photovoltaic steel structure processing, comprising a machine base (1), wherein a hollow cavity is arranged inside the machine base (1), characterized in that: Also includes: A layer of fine sand is laid on the inner bottom of the machine base (1); A screening mechanism, used for separating slag and fine sand generated by cutting, the screening mechanism being installed inside the hollow cavity of the machine base (1); An ash blocking mechanism, used to prevent dust generated during the screening process from spreading from the inside of the machine base (1), the ash blocking mechanism being installed on the outside of the machine base (1), the number of the ash blocking mechanisms being two groups, and being symmetrically distributed; The connecting assembly is used to drive the screening mechanism to swing back and forth. The connecting assembly is in two groups and is symmetrically distributed. The connecting assembly is installed between the screening mechanism and the dust blocking mechanism.

2. The plasma cutting machine for photovoltaic steel structure processing according to claim 1, characterized in that: The screening mechanism comprises an inclined screen (2) installed inside the machine base (1); a fence (3) is fixedly installed on the outside of the inclined screen (2), and the right end of the fence (3) is in an open state; the right end of the inclined screen (2) is movably abutted against an inclined baffle (4), and the inclined baffle (4) is rotatably connected to the fence (3) through a connecting shaft; a counterweight bar (5) is fixedly connected to the upper end of the inclined baffle (4); two symmetrically distributed reinforcement seats (6) are fixedly installed on the outside of the fence (3), and two symmetrically distributed electric push rods (7) are fixedly installed on the upper end of the reinforcement seat (6).

3. The plasma cutting machine for photovoltaic steel structure processing according to claim 2, characterized in that: The upper end of the electric push rod (7) is fixedly connected to a support frame (8), and the support frame (8) is capable of moving forward and backward in the hollow cavity of the base (1). Four limiting wheels (9) distributed in a rectangular array are fixedly installed on the upper end of the support frame (8), and the limiting wheels (9) are in rolling contact with the base (1) through a reserved groove. Four limiting blocks (10) distributed in a rectangular array are also fixedly embedded on the upper end of the support frame (8), and the limiting blocks (10) are in sliding contact with the base (1) through limiting straight grooves.

4. The plasma cutting machine for photovoltaic steel structure processing according to claim 3 is characterized in that: A spring (11) is fixedly mounted on the rear end of the limit block (10), and one end of the spring (11) away from the limit block (10) is movably abutted against the machine base (1); a baffle plate 1 (12) is movably abutted against the outer side of the counterweight bar (5), and the baffle plate 1 (12) is fixedly connected to the machine base (1) via a plurality of positioning rods (13) distributed in a rectangular array; a baffle plate 2 (14) is fixedly mounted inside the hollow cavity of the machine base (1), and the baffle plate 2 (14) is located on the right side of the baffle plate 1 (12); an inclined guide plate (15) is fixedly mounted on the right side of the baffle plate 2 (14), and the inclined guide plate (15) is connected to the machine base (1) in a fixed manner.

5. The plasma cutting machine for photovoltaic steel structure processing according to claim 2, characterized in that: An elastic band (34) is installed between the inclined screen (2) and the inclined baffle (4), and two ends of the elastic band (34) are fixedly bonded to the inclined screen (2) and the inclined baffle (4), respectively.

6. The plasma cutting machine for photovoltaic steel structure processing according to claim 1, characterized in that: The dust blocking mechanism comprises a blower (16) fixedly mounted on the outside of the machine base (1); a driving motor (17) is fixedly mounted on a side of the blower (16) away from the machine base (1); a U-shaped tube (18) in communication with the blower (16) is fixedly mounted on an air outlet end of the blower (16); the U-shaped tube (18) is fixedly mounted on the outside of the machine base (1); a plurality of blowing tubes (19) are fixedly mounted on the outside of the U-shaped tube (18); and the blowing tubes (19) penetrate the side wall of the machine base (1).

7. The plasma cutting machine for photovoltaic steel structure processing according to claim 6, characterized in that: The connection assembly comprises a gearbox (20) fixedly connected to an impeller shaft inside the blower (16), and the impeller shaft of the blower (16) is rotatably connected to a side wall of the machine base (1) via a bearing, and an output end of the gearbox (20) is fixedly connected to a connection base (21).

8. The plasma cutting machine for photovoltaic steel structure processing according to claim 7, characterized in that: A plurality of circumferentially equidistantly distributed push rods (22) are fixedly embedded on the outer side of the connecting seat (21); a ball (23) is movably embedded at one end of the push rod (22) away from the connecting seat (21); a stop bar (24) is fixedly mounted at the lower end of the support frame (8) corresponding to the connecting seat (21); and the connection between the ball (23) and the stop bar (24) is a rolling contact.

9. The plasma cutting machine for photovoltaic steel structure processing according to claim 2, characterized in that: Both ends of the connecting shaft of the inclined baffle (4) are equipped with a deceleration assembly, the deceleration assembly comprising a rotating block (25) fixedly mounted on both ends of the connecting shaft of the inclined baffle (4), and the two rotating blocks (25) are both located outside the enclosure (3), the outer side of the rotating block (25) is movably sleeved with an arc guide rail (26), and the connection between the arc guide rail (26) and the enclosure (3) is a fixed connection, a vertical portion (27) is provided on the right side of the arc guide rail (26), and the connection between the rotating block (25) and the vertical portion (27) is a movable abutment, and a cam (28) is installed at one end of the rotating block (25) close to the arc guide rail (26).

10. The plasma cutting machine for photovoltaic steel structure processing according to claim 9, characterized in that: The cam (28) is rotatably connected to the rotating block (25) via a positioning shaft (29); two symmetrically distributed coil springs (30) are fixedly sleeved on the outer side of the positioning shaft (29); and the outer ends of the coil springs (30) are fixedly connected to the rotating block (25); a flexible pad (31) is fixedly sleeved on the outer side of the cam (28); a limited rotation groove (32) is provided on the rotating block (25) at a position corresponding to the mounting of the cam (28); a limited contact groove (33) is provided on a side of the arc guide rail (26) close to the flexible pad (31); and the flexible pad (31) is in sliding contact with the arc guide rail (26) via the limited contact groove (33).