Steel cutting device suitable for continuous machining

Abstract

The invention discloses a steel cutting device suitable for continuous machining, and relates to the technical field of steel cutting. To solve efficiency problems; the device specifically comprises a rack, the rack is supported on the ground through multiple sets of supporting legs, a conveying mechanism is arranged on the inner side of the upper portion of the rack, a vertical frame is fixed to the outer wall of the top of the rack through bolts, and a cutting mechanism is arranged on the inner side of the vertical frame; the conveying mechanism is composed of a plurality of conveying rollers, the conveying rollers are rotationally connected to the inner side of the rack through roller shafts, one sides of the multiple roller shafts are in transmission fit through a synchronous assembly, the other ends of the roller shafts are connected with a first motor through a coupler, and the first motor is fixed to the side wall of the rack through bolts. The conveying mechanism and the cutting mechanism which are matched with each other are arranged, the conveying rollers of the conveying mechanism can convey steel, and therefore continuous steel cutting can be achieved in cooperation with cutting of the cutting mechanism, and the machining efficiency is greatly improved during batch machining.

Description

Technical Field

[0001] The invention relates to the technical field of steel cutting, and in particular to a steel cutting device suitable for continuous processing. Background Art

[0002] When steel is manufactured, most of it is in the form of long bars, which is convenient for transportation and production. When it is used again, the bars are further cut to form the required size.

[0003] After searching, the Chinese patent publication number CN208662665U discloses a steel cutting equipment, including: a base, each of the two sides of the base is provided with a mounting groove, and a processing position is arranged on the base; a cutting machine fixing frame, the cutting machine fixing frame includes two supporting feet and a connecting seat, the two supporting feet are respectively connected to the connecting seat, each of the supporting feet is respectively arranged in the mounting groove, and a movable opening is arranged on the connecting seat; a cutting assembly, the cutting assembly includes a cutting machine, a fixed plate and a driver, the driver is arranged on the connecting seat, the fixed plate is movably arranged in the movable opening, the driver is drivingly connected to the fixed plate, the driver drives the fixed plate to move in the movable opening toward or away from the processing position, and the cutting machine is detachably arranged on the surface of the fixed plate facing the base.

[0004] The above patent has the following shortcomings: it cannot achieve continuous cutting, so that the cutting efficiency is low during batch cutting production.

[0005] To this end, the present invention provides a steel cutting device suitable for continuous processing. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a steel cutting device suitable for continuous processing.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A steel material cutting device suitable for continuous processing, comprising a frame,

[0009] The frame is supported on the ground by multiple groups of supporting legs, a conveying mechanism is arranged on the inner side of the upper part of the frame, a vertical frame is fixed to the top outer wall of the frame by bolts, and a cutting mechanism is arranged on the inner side of the vertical frame;

[0010] The conveying mechanism is composed of a plurality of conveying rollers, which are rotatably connected to the inner side of the frame through roller shafts, one side of the plurality of roller shafts is driven by a synchronous assembly, and the other end of the roller shaft is connected to a motor 1 through a coupling, and the motor 1 is fixed to the side wall of the frame by bolts;

[0011] The cutting mechanism includes a base plate and a connecting plate which is transmission-connected to the base plate. The bottom of the connecting plate is fixed with a second motor by bolts. The outer wall of the output shaft of the second motor is connected with a cutting shaft by a coupling. The outer wall of the cutting shaft is fixed with a saw blade by bolts.

[0012] Preferably: a limiting groove is provided on the outer wall of the conveying roller, and two symmetrical limiting rings are movably sleeved on the outer wall of each conveying roller, the limiting rings are slidably connected to the limiting grooves through limiting blocks, and the inner wall of the limiting ring located at the limiting block is threadedly connected with a countersunk bolt.

[0013] Furthermore: the outer wall of the conveying roller is provided with a plurality of anti-slip grooves.

[0014] On the basis of the above scheme: a base plate is fixed to the inner side of the stand by bolts, the inner wall of the base plate is provided with at least two groups of parallelly arranged slide grooves, the inner wall of the slide groove is slidably connected with a slider, and the outer walls of the multiple sliders are movably connected to the connecting plate by connecting rods.

[0015] A better solution among the above solutions is that the chute is arranged in an inverted trapezoidal shape with a low middle part and high ends.

[0016] As a further solution of the present invention: the side wall of the connecting plate is rotatably connected with a reel, the reel is transmission-coordinated with the output shaft of the second motor, and the outer wall of the reel is wound with a steel strand, and the two ends of the steel strand are respectively fixed to the inner walls of the two sides of the stand;

[0017] The outer wall of the output shaft of the second motor is connected with a gear second through a key, and the side wall of the reel is coaxially fixed with a gear first, the gear first and the gear second are meshed with each other, and the transmission radius of the gear first is greater than the transmission radius of the gear second.

[0018] At the same time, when the slider is located in the middle position of the slide groove, the steel strand is in a "V" shape, and when one end of the steel strand is in a taut state, the other end is in a relaxed state.

[0019] As a preferred embodiment of the present invention: the side wall of the support leg is also equipped with a switch assembly for controlling the motor 1 and the motor 2;

[0020] The switch assembly includes an outer shell and end covers fixed to both ends of the outer shell by bolts, the inner wall of the outer shell is slidably connected with a sliding block, an electrode sheet 1 and an electrode sheet 2 are respectively fixed on both sides of the sliding block, and another electrode sheet 1 and another electrode sheet 2 are respectively fixed on the inner walls of the two sides of the outer shell; springs are fixed on both sides of the sliding block, and the other end of the spring is fixed to the end cover.

[0021] At the same time, the two electrode sheets 1 cooperate with each other and are connected in series to the power supply circuit of the motor 1, and the two electrode sheets 2 cooperate with each other and are connected in series to the power supply circuit of the motor 2.

[0022] As a more optimal solution of the present invention: an electromagnet 1 is fixed to one side of the sliding block via a protrusion, and an electromagnet 2 cooperating with the electromagnet 1 is fixed to the inner side of the end cover located on one side of the electromagnet.

[0023] The beneficial effects of the present invention are:

[0024] 1. The present invention provides a conveying mechanism and a cutting mechanism that cooperate with each other. The conveying roller of the conveying mechanism can convey the steel, thereby cooperating with the cutting of the cutting mechanism to achieve continuous steel cutting, which greatly improves the processing efficiency during batch processing.

[0025] 2. The present invention sets a limit ring, which can be used to limit the position of steel. On the one hand, it can increase the stability of transportation and cutting. On the other hand, the position of the limit ring can be adjusted to adjust the limit width or limit position.

[0026] 3. The present invention controls the position and height of the saw blade by setting a slider and a slide groove. On the one hand, transverse cutting can be achieved, so that steel with a larger width can be cut at one time. On the other hand, by utilizing the limit of the slide groove and the slider, the saw blade can rise to avoid after a single cutting, thereby integrating the transverse movement and the lifting movement of the saw blade, increasing synchronization, reducing the power source layout, and also simplifying the control logic.

[0027] 4. The present invention, by setting the matching form of the steel strand and the drum, can divert the output power of the second motor and control cutting and movement at the same time. In addition, by setting gear one and gear two, it can control the transmission ratio, thereby controlling the matching of the rotation speed and the movement speed of the saw blade.

[0028] 5. The present invention, by setting a switch assembly, ensures that the contact state of the two electrode sheets 1 and the contact state of the two electrode sheets 2 will not appear at the same time, thereby preventing the situation where the motor 1 and the motor 2 are started at the same time, avoiding damage to the saw blade caused by algorithm loss of control or worker misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of a steel cutting device suitable for continuous processing proposed by the present invention;

[0030] Figure 2 A steel cutting device suitable for continuous processing proposed by the present invention Figure 4 A structural schematic diagram of a steel cutting device suitable for continuous processing proposed by the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of a conveyor roller of a steel cutting device suitable for continuous processing proposed by the present invention;

[0032] Figure 4 This is a schematic diagram of the cutting mechanism structure of a steel cutting device suitable for continuous processing proposed by the present invention;

[0033] Figure 5 This is a structural schematic diagram of a steel strand, a gear 1, a drum, and a gear 2 of a steel material cutting device suitable for continuous processing proposed by the present invention;

[0034] Figure 6 This is a schematic diagram of the structure of gear 1 and gear 2 of a steel cutting device suitable for continuous processing proposed by the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of a switch assembly of a steel cutting device suitable for continuous processing proposed by the present invention.

[0036] In the figure: 1. supporting leg; 2. frame; 3. conveying mechanism; 4. stand; 5. cutting mechanism; 6. synchronization component; 7. conveying roller; 8. motor 1; 9. roller shaft; 10. limit block; 11. countersunk bolt; 12. limit ring; 13. anti-slip pattern; 14. limit groove; 15. slider; 16. slide groove; 17. connecting rod; 18. connecting plate; 19. cutting shaft; 20. saw blade; 21. motor 2; 22. stranded wire; 23. gear 1; 24. reel; 25. gear 2; 26. outer shell; 27. sliding block; 28. bump; 29. ​​electromagnet 1; 30. end cover; 31. electromagnet 2; 32. spring; 33. electrode sheet 1; 34. electrode sheet 2; 35. substrate. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] Embodiment 1:

[0040] A steel cutting device suitable for continuous processing, such as Figure 1-Figure 7As shown, it includes a frame 2, which is supported on the ground by multiple groups of supporting legs 1. A conveying mechanism 3 is arranged on the upper inner side of the frame 2. A vertical frame 4 is fixed to the top outer wall of the frame 2 by bolts, and a cutting mechanism 5 is arranged on the inner side of the vertical frame 4.

[0041] The conveying mechanism 3 is composed of a plurality of conveying rollers 7, which are rotatably connected to the inner side of the frame 2 via a roller shaft 9, one side of the plurality of roller shafts 9 is driven by a synchronization component 6, and the other end of the roller shaft 9 is connected to a motor 8 via a coupling, and the motor 8 is fixed to the side wall of the frame 2 via bolts.

[0042] In the present embodiment, there is no limitation on the specific type of the synchronization component 6, which can be any one of belt drive, chain drive, and gear drive, and it is only required to satisfy that the rotation speed and direction of multiple rollers 9 are the same. The above structures are all prior arts, and those skilled in the art are familiar with their structures, installation methods, working principles, etc. In the present embodiment, preferably, the synchronization component 6 is a belt drive mechanism.

[0043] The cutting mechanism 5 includes a base plate 35 and a connecting plate 18 which is transmission-connected to the base plate 35. The bottom of the connecting plate 18 is fixed with a motor 21 by bolts. The outer wall of the output shaft of the motor 21 is connected with a cutting shaft 19 by a coupling. The outer wall of the cutting shaft 19 is fixed with a saw blade 20 by bolts.

[0044] When the device is in use, the steel can be placed on the top of the conveying roller 7, and then the motor 8 is started. The motor 8 drives one of the roller shafts 9 to rotate, thereby driving all the roller shafts 9 to rotate synchronously through the synchronization component 6. The roller shaft 9 drives the conveying roller 7 to rotate to convey the steel. After conveying to the required cutting length, the conveying is stopped. At this time, the motor 21 is started, and it drives the saw blade 20 to rotate through the cutting shaft 19 to cut the steel. After the cutting is completed, the steel continues to be conveyed for a cutting length, and then cut again, and so on.

[0045] The device is provided with a conveying mechanism 3 and a cutting mechanism 5 that cooperate with each other. The conveying roller 7 of the conveying mechanism 3 can convey the steel, thereby cooperating with the cutting of the cutting mechanism 5 to achieve continuous steel cutting, which greatly improves the processing efficiency during batch processing.

[0046] In order to solve the limitation problem; Figure 3 As shown, a limit groove 14 is provided on the outer wall of the conveying roller 7, and two symmetrical limit rings 12 are movably sleeved on the outer wall of each conveying roller 7. The limit rings 12 are slidably connected to the limit groove 14 through limit blocks 10, and the inner wall of the limit ring 12 located at the limit block 10 is threadedly connected with a countersunk bolt 11.

[0047] Due to the different widths of steel, it will be subjected to lateral force during cutting. When the device is in use, the steel can be placed between two limit rings 12 and limited by the limit rings 12. The limit spacing and limit position of the limit rings 12 can be adjusted by loosening the countersunk bolts 11 according to the width of the steel or the cutting position. After adjustment, the countersunk bolts 11 are tightened, and the end of the countersunk bolts 11 contacts the roller shaft 9 and is fixed by friction.

[0048] The device, by setting a limit ring 12, can limit the steel by using the limit ring 12, which can increase the stability of transportation and cutting on the one hand, and on the other hand, can also adjust the position of the limit ring 12, thereby adjusting the limit width or limit position.

[0049] The outer wall of the conveying roller 7 is provided with a plurality of anti-skid grooves 13. By providing the anti-skid grooves 13, the friction coefficient between the steel material and the conveying roller 7 can be increased, thereby ensuring the reliability of conveying.

[0050] To solve the cutting problem; Figure 4 As shown, a base plate 35 is fixed to the inner side of the stand 4 by bolts, and the inner wall of the base plate 35 is provided with at least two groups of parallelly arranged slide grooves 16, and the inner wall of the slide groove 16 is slidably connected to a slider 15, and the outer walls of the plurality of sliders 15 are movably connected to the connecting plate 18 by a connecting rod 17.

[0051] During the cutting process, the slider 15 will slide relative to the slide groove 16. When it slides to the middle of the slide groove 16, the saw blade 20 will drop, thereby causing motion interference with the steel, and then horizontal cutting will be performed. After cutting, the slider 15 slides to a high position along the slide groove 16, so that there is no motion interference between the saw blade 20 and the steel, and the steel continues to be transported. Then, when cutting next time, the slider 15 moves in the opposite direction to complete a cut.

[0052] The device controls the position and height of the saw blade 20 by setting a slider 15 and a slide groove 16. On the one hand, it can realize transverse cutting, so that steel with a larger width can be cut at one time. On the other hand, by utilizing the limit of the slide groove 16 and the slider 15, the saw blade 20 can rise to avoid after a single cutting, thereby integrating the transverse movement and the lifting movement of the saw blade 20, increasing synchronization, reducing the power source layout, and also simplifying the control logic.

[0053] The slide groove 16 is arranged in an inverted trapezoidal shape with a low middle portion and high ends.

[0054] To solve the driver problem; Figure 5 As shown, the side wall of the connecting plate 18 is rotatably connected with a reel 24, the reel 24 is in transmission cooperation with the output shaft of the motor 21, and the outer wall of the reel 24 is wound with a steel strand 22, and the two ends of the steel strand 22 are respectively fixed to the inner walls of both sides of the stand 4.

[0055] When the slider 15 is located in the middle of the slide groove 16, the steel strand 22 is in a "V" shape, and when one end of the steel strand 22 is in a taut state, the other end is in a relaxed state.

[0056] The outer wall of the output shaft of the motor 21 is connected to the gear 25 through a key, and the side wall of the reel 24 is coaxially fixed with a gear 1 23 . The gear 1 23 and the gear 2 25 are meshed with each other, and the transmission radius of the gear 1 23 is greater than the transmission radius of the gear 2 25 .

[0057] Since the rotation speed of the saw blade 20 is relatively large compared to the lateral movement or lifting speed of the saw blade 20, when the motor 21 is started, on the one hand, it drives the saw blade 20 to rotate at high speed for cutting through the cutting shaft 19, and then on the other hand, it drives the reel 24 to rotate through the gear 25 and the reel 24, so that the reel 24 reels one side of the steel strand 22 and unwinds the other side, so that the slider 15 slides along the slide groove 16.

[0058] This device, by setting the matching form of the steel strand 22 and the reel 24, can divert the output power of the motor 21 and control cutting and movement at the same time. In addition, by setting the gear 1 23 and the gear 2 25, it can control the transmission ratio, thereby controlling the matching of the rotation speed and the movement speed of the saw blade 20.

[0059] When the present embodiment is in use, the steel material can be placed on the top of the conveying roller 7, and then the motor 1 8 is started. The motor 1 8 drives one of the roller shafts 9 to rotate, thereby driving all the roller shafts 9 to rotate synchronously through the synchronization component 6. The roller shaft 9 drives the conveying roller 7 to rotate to convey the steel material. After conveying to the required cutting length, the conveying is stopped. At this time, the motor 21 is started, which drives the saw blade 20 to rotate through the cutting shaft 19, thereby cutting the steel material. After the cutting is completed, the steel material continues to be conveyed for a cutting length, and then cut again, and so on. Due to the different widths of the steel materials, they will also be subjected to lateral forces during cutting. When the present device is in use, the steel material can be placed between the two limiting rings 12, and the limiting rings 12 can be used for limiting the position. In addition, the countersunk bolts 11 can be loosened to adjust the limiting spacing and limiting position of the limiting rings 12 according to the width of the steel material or the cutting position. After adjustment, the countersunk bolts 11 are tightened, and the countersunk bolts 11 are tightened. The end of the bolt 11 contacts the roller 9 and is fixed by friction. During the cutting process, the slider 15 will slide relative to the slide groove 16. When it slides to the middle of the slide groove 16, the saw blade 20 will drop, thereby interfering with the steel in motion, and then horizontal cutting is performed. After cutting, the slider 15 slides to a high position along the slide groove 16, so that there is no motion interference between the saw blade 20 and the steel, and the steel continues to be transported. Then, when cutting next time, the slider 15 moves in the opposite direction to complete a cutting. Since the rotation speed of the saw blade 20 is relatively large compared to the horizontal movement or lifting speed of the saw blade 20, when the motor 21 is started, on the one hand, it drives the saw blade 20 to rotate at a high speed for cutting through the cutting shaft 19, and then on the other hand, it drives the reel 24 to rotate through the gear 25 and the reel 24, so that the reel 24 reels one side of the steel strand 22 and unwinds the other side, so that the slider 15 slides along the slide groove 16.

[0060] Embodiment 2:

[0061] A steel cutting device suitable for continuous processing, such as Figure 7 As shown, in order to solve the safety and coordination problems, this embodiment makes the following improvements on the basis of embodiment 1: the side wall of the support leg 1 is also equipped with a switch assembly for controlling motor 1 8 and motor 2 21.

[0062] The switch assembly includes an outer shell 26 and end covers 30 fixed to both ends of the outer shell 26 by bolts. The inner wall of the outer shell 26 is slidably connected with a sliding block 27. An electrode sheet 1 33 and an electrode sheet 2 34 are fixed on both sides of the sliding block 27. Another electrode sheet 1 33 and another electrode sheet 2 34 are fixed on the inner walls of both sides of the outer shell 26.

[0063] The two electrode sheets 1 33 cooperate with each other and are connected in series to the power supply circuit of the motor 1 8 , and the two electrode sheets 2 34 cooperate with each other and are connected in series to the power supply circuit of the motor 2 21 .

[0064] Springs 32 are fixed to both sides of the sliding block 27 , and the other end of the spring 32 is fixed to the end cover 30 .

[0065] An electromagnet 1 29 is fixed to one side of the sliding block 27 via a protrusion 28 , and an electromagnet 2 31 cooperating with the electromagnet 1 29 is fixed to the inner side of the end cover 30 located on the side of the electromagnet 1 29 .

[0066] Since cutting cannot be performed during transportation, otherwise the saw blade will be subjected to a large vertical force and break.

[0067] When the present embodiment is in use, during transportation, current in opposite directions may be passed through the electromagnet 2 31 and the electromagnet 1 29, so that the electromagnet 2 31 and the electromagnet 1 29 generate magnetic attraction, and the sliding block 27 is adsorbed to the left, and the two electrode sheets 1 33 contact each other. The motor 1 8 circuit is connected to start transportation. During cutting, current in the same direction may be passed through the electromagnet 2 31 and the electromagnet 1 29, so that a magnetic repulsion force is generated between the electromagnet 2 31 and the electromagnet 1 29, and the sliding block 27 moves to make the two electrode sheets 2 34 contact. At this time, the motor 21 can start cutting. When there is no current in both the electromagnet 1 29 and the electromagnet 2 31, the sliding block 27 is located in the middle due to the elastic force of the springs 32 at both ends, and the two electrode sheets 1 33 are not in contact with the two electrode sheets 2 34.

[0068] The device, by setting a switch component, ensures that the contact state of the two electrode pieces 1 33 and the contact state of the two electrode pieces 2 34 will not appear at the same time, thereby preventing the situation where the motor 1 8 and the motor 2 21 are started at the same time, avoiding damage to the saw blade 20 caused by algorithm loss of control or worker misoperation.

[0069] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel cutting device suitable for continuous processing, comprising a frame (2), characterized in that: The frame (2) is supported on the ground by a plurality of groups of supporting legs (1); a conveying mechanism (3) is arranged on the inner side of the upper part of the frame (2); a vertical frame (4) is fixed to the top outer wall of the frame (2) by bolts; a cutting mechanism (5) is arranged on the inner side of the vertical frame (4); The conveying mechanism (3) is composed of a plurality of conveying rollers (7), and the conveying rollers (7) are rotatably connected to the inner side of the frame (2) through roller shafts (9), one side of the plurality of roller shafts (9) is driven by a synchronous component (6), and the other end of the roller shaft (9) is connected to a motor (8) through a coupling, and the motor (8) is fixed to the side wall of the frame (2) by bolts; The cutting mechanism (5) comprises a base plate (35) and a connecting plate (18) drivingly connected to the base plate (35); a second motor (21) is fixed to the bottom of the connecting plate (18) by means of bolts; the outer wall of the output shaft of the second motor (21) is connected to a cutting shaft (19) by means of a coupling; and a saw blade (20) is fixed to the outer wall of the cutting shaft (19) by means of bolts.

2. A steel cutting device suitable for continuous processing according to claim 1, characterized in that: The outer wall of the conveying roller (7) is provided with a limiting groove (14), and the outer wall of each conveying roller (7) is movably sleeved with two symmetrical limiting rings (12), the limiting rings (12) are slidably connected to the limiting groove (14) through limiting blocks (10), and the inner wall of the limiting ring (12) located at the limiting blocks (10) is connected to a countersunk bolt (11) through a thread.

3. A steel material cutting device suitable for continuous processing according to claim 1, characterized in that: The outer wall of the conveying roller (7) is provided with a plurality of anti-slip grooves (13).

4. A steel cutting device suitable for continuous processing according to claim 1, characterized in that: A base plate (35) is fixed to the inner side of the stand (4) by bolts, and the inner wall of the base plate (35) is provided with at least two groups of parallelly arranged slide grooves (16), and the inner wall of the slide groove (16) is slidably connected to a slider (15), and the outer walls of the plurality of sliders (15) are movably connected to the connecting plate (18) by connecting rods (17).

5. A steel material cutting device suitable for continuous processing according to claim 4, characterized in that: The slide groove (16) is arranged in an inverted trapezoidal shape with a low middle portion and high ends.

6. A steel material cutting device suitable for continuous processing according to claim 4, characterized in that: The side wall of the connecting plate (18) is rotatably connected with a reel (24), the reel (24) is in driving cooperation with the output shaft of the second motor (21), and the outer wall of the reel (24) is wound with a steel strand (22), and the two ends of the steel strand (22) are respectively fixed to the inner walls of both sides of the stand (4); The outer wall of the output shaft of the second motor (21) is connected to a second gear (25) via a key, and the side wall of the reel (24) is coaxially fixed with a first gear (23), the first gear (23) and the second gear (25) are meshed with each other, and the transmission radius of the first gear (23) is greater than the transmission radius of the second gear (25).

7. A steel material cutting device suitable for continuous processing according to claim 6, characterized in that: When the slider (15) is located in the middle position of the slide groove (16), the steel strand (22) is in a "V" shape, and when one end of the steel strand (22) is in a taut state, the other end is in a relaxed state.

8. The steel material cutting device suitable for continuous processing according to claim 1, characterized in that: The side wall of the support leg (1) is also equipped with a switch assembly for controlling the motor 1 (8) and the motor 2 (21); The switch assembly comprises an outer shell (26) and end covers (30) fixed to both ends of the outer shell (26) by bolts; a sliding block (27) is slidably connected to the inner wall of the outer shell (26); an electrode sheet 1 (33) and an electrode sheet 2 (34) are respectively fixed on both sides of the sliding block (27); another electrode sheet 1 (33) and another electrode sheet 2 (34) are respectively fixed on the inner walls of both sides of the outer shell (26); springs (32) are fixed on both sides of the sliding block (27); the other end of the spring (32) is fixed to the end cover (30).

9. A steel material cutting device suitable for continuous processing according to claim 8, characterized in that: The two electrode sheets (33) cooperate with each other and are connected in series to the power supply circuit of the motor (8), and the two electrode sheets (34) cooperate with each other and are connected in series to the power supply circuit of the motor (21).

10. A steel material cutting device suitable for continuous processing according to claim 9, characterized in that: An electromagnet 1 (29) is fixed to one side of the sliding block (27) via a protrusion (28), and an electromagnet 2 (31) cooperating with the electromagnet 1 (29) is fixed to the inner side of the end cover (30) located on the side of the electromagnet 1 (29).

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