Numerical control plate shearing machine for scrap steel processing pretreatment

Abstract

The invention relates to the technical field of shearing equipment, in particular to a numerical control plate shearing machine for scrap steel processing pretreatment, which comprises a rack and a lathe bed, the rack comprises a tool rest, an upper blade and a lower blade matched with the upper blade, the upper blade and the lower blade are pressed together to shear waste coiled materials, the lathe bed transversely penetrates through the tool rest, and the lathe bed comprises a main plate and a short side plate. A gap is reserved between the main plate and the short side plate and is used for mounting the medium-frequency water-cooling electromagnetic induction heater; a rear material blocking assembly is installed on the side, back to the short side plate, of the main plate, and an auxiliary straightening assembly capable of horizontally moving in the length direction of the lathe bed is installed in the rear material blocking assembly. According to the device, the shearing operation of the device on the waste coiled material can be greatly facilitated, the situation that the coiled material collapses in the shearing process is greatly reduced, the situation that the sheared small-section coiled material collapses can be prevented by sucking the two sides of the waste coiled material, and material returning and collecting of the sheared small-section coiled material are facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of shearing equipment, and in particular relates to a numerically controlled shearing machine for pre-processing of scrap steel. Background Art

[0002] Shearing machine is a kind of equipment used to shear metal plates, which is widely used in metal processing industry. It is also widely used in scrap steel recycling. At present, shearing machine is commonly used to shear long scrap coils, and shear them into small sections of 1.5 meters each for stacking and collection, which can also facilitate the further recycling of scrap steel.

[0003] However, when currently shearing waste coils, due to the large deformation resistance of the coils, they are prone to collapse after shearing, resulting in problems such as poor feeding and returning of materials, and are also prone to accidental injuries to personnel. Summary of the invention

[0004] The object of the present invention is to provide a CNC shearing machine for scrap steel processing and pretreatment, so as to solve the problems in the prior art that scrap coils are prone to collapse when shearing, thereby causing problems such as poor feeding and returning of materials.

[0005] To achieve the above object, the present invention provides the following technical solutions: A CNC shearing machine for scrap steel processing and pretreatment comprises a frame and a bed, wherein the frame comprises a tool holder, an upper blade and a matching lower blade, wherein the upper blade and the lower blade can shear the scrap coiled material when pressed together, wherein the bed is arranged to cross the tool holder, and the bed comprises a main board and a short side board, wherein a gap is reserved between the main board and the short side board, and the gap is used for the installation of a medium frequency water-cooled electromagnetic induction heater; a rear stopper assembly is installed on the side of the main board facing away from the short side board, which is used for locating the shearing length of the scrap coiled material, and an auxiliary shear assembly which can be translated along the length direction of the bed is installed in the rear stopper assembly An auxiliary straightening component is installed, and at least two roller pressing components are installed on the side of the short side plate facing away from the medium frequency water-cooled electromagnetic induction heater to perform preliminary flattening of the waste coils. The auxiliary straightening component is used to cooperate with the roller pressing component to further flatten the waste coils to be sheared; an electromagnetic suction fixing component is also installed on the rear stopper component, and the electromagnetic suction fixing component is located on the side of the knife holder facing away from the medium frequency water-cooled electromagnetic induction heater, and is used to fix both sides of the waste coils to prevent the small sections of coils from breaking after shearing, so as to facilitate the return and collection of the small sections of coils after shearing.

[0006] Preferably: the rolling assembly includes two symmetrically arranged mounting supports and two rollers arranged in sequence up and down, a rotating shaft is fixedly inserted in the middle of the two rollers, and an adjustable supporting seat is sleeved and installed at the ends of the rotating shaft. The adjustable supporting seat can be installed at different positions and heights of the mounting support in cooperation with the fastening bolts, so that waste coils of different thicknesses can be initially rolled and leveled.

[0007] Preferably: the rear stopper assembly comprises two mounting frames symmetrically mounted on both side edges of the tool holder, a stopper seat being mounted on the two mounting frames, a recovery groove matching the auxiliary straightening assembly being provided on the side of the stopper seat close to the tool holder, and an extension plate flush with the top of the stopper seat being mounted on the side of the stopper seat away from the tool holder, so as to support the positional movement of the electromagnetic suction assembly.

[0008] Preferably: the auxiliary straightening assembly includes a edge clamp and two first cylinders, the two first cylinders penetrate the material stop seat for fixation, the edge clamp includes a movable seat, a mounting groove is opened on the side of the movable seat away from the material stop seat, a row of rolling sleeves are arranged in the mounting groove, the rolling sleeves are rotatably connected to the mounting groove through pins, two second cylinders are symmetrically installed on the top of the movable seat, upper movable pressure blocks are fixed at the output ends of the two second cylinders, and two lower fixed shovel pieces matching the two upper movable pressure blocks are installed on the side of the movable seat, and the bottom surfaces of the two lower fixed shovel pieces are flush with the bottom surface of the movable seat.

[0009] Preferably, the end of the lower fixed shovel blade facing away from the movable seat is configured as a shoveling edge slope surface, so as to facilitate clamping the end of the waste coil after scooping up.

[0010] Preferably, one end of the upper movable pressing block close to the material blocking seat is provided with a sliding groove matched with the cross-sectional shape of several rolling sleeves facing it, so as to avoid interference with the rotation of the rolling sleeves when the upper movable pressing block moves vertically in the vertical direction.

[0011] Preferably: the electromagnetic suction assembly includes a movable plate, an XY translation slider is installed on the side of the movable plate, and an XY translation track for the movement of the XY translation slider is embedded on the top of the material blocking seat, a mounting beam is fixedly installed on the movable plate, both ends of the mounting beam are fixedly connected to side frames, strip frames are provided below the side frames, electromagnets are installed on the bottom surfaces of the strip frames, and a group of third cylinders matching the strip frames below them are installed at intervals on the two side frames, which are used to control the timely lifting and lowering of the two electromagnets to avoid interference with the movement of the edge holding piece.

[0012] Preferably: a driving motor for driving the rotation of each rotating shaft is installed at the end thereof, the driving motor is attached to the adjustable support seat closest to it through a motor mounting bracket, and the output end of the driving motor is connected to the end of the rotating shaft through a reducer and a coupling in sequence; and a roller bearing for supporting the rotation of the rotating shaft is arranged in each adjustable support seat.

[0013] Preferably: the short side plate is fixed to the side of the medium frequency water-cooled electromagnetic induction heater by reinforcing ribs to avoid the short side plate being suspended without support; the waste coil can pass through the medium frequency water-cooled electromagnetic induction heater under the pulling of the auxiliary straightening component, and the medium frequency water-cooled electromagnetic induction heater is used to locally heat the part of the waste coil that needs to be sheared, thereby reducing the shear stress and further reducing the probability of the coil breaking during the shearing process.

[0014] Preferably: a strip groove is provided on the surface of the main board for accommodating the lower blade, and the upper blade and the lower blade are driven by hydraulic cylinders, the hydraulic cylinder connected to the upper blade is installed on the top of the tool holder, and the hydraulic cylinder connected to the lower blade is installed in the strip groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention utilizes several front roller pressing assemblies to perform preliminary flattening of waste coils, and then cooperates with the clamping of the edge pressing piece and the pulling effect of the two first cylinders to achieve the purpose of further flattening the waste coils, facilitate the shearing operation of the waste coils by the device, and reduce the occurrence of coil collapse during the shearing process.

[0016] 2. The present invention sets a medium-frequency water-cooled electromagnetic induction heater in the main board and the short side board, and uses the medium-frequency water-cooled electromagnetic induction heater to locally heat the parts of the waste coils that need to be sheared. This can reduce the shear stress and further reduce the probability of the coils breaking during the shearing process.

[0017] 3. After the edge pressing piece pulls the waste coil close to the material blocking seat, the present invention lowers two electromagnets to fix the two sides of the waste coil to prevent the small sections of the coil from breaking after shearing. Then, the two upper movable pressing blocks loosen the small sections of the coil after shearing, and the two electromagnets follow the movable plate to move first to the side away from the medium frequency water-cooled electromagnetic induction heater, and then move to the other end of the rear material blocking assembly, so as to facilitate the return and collection of the small sections of the coil after shearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a side view of the present invention; Figure 2 A perspective view of the present invention; Figure 3 It is a top view of the connection relationship of the main parts of the frame, bed, medium-frequency water-cooled electromagnetic induction heater, rear stopper assembly, auxiliary straightening assembly, and electromagnetic fixing assembly of the present invention; Figure 4 It is a structural schematic diagram of the edge holding member of the present invention; Figure 5 It is a schematic diagram of the connection between the rear stopper assembly and the electromagnetic fixing assembly of the present invention; Figure 6 This is a structural disassembly diagram of the rear stopper assembly and the electromagnetic fixing assembly of the present invention; Figure 7 This is a state diagram of the electromagnetic fixing assembly of the present invention when it slides to the other end of the rear stop assembly.

[0019] In the figure: 1. Frame; 11. Blade holder; 12. Upper blade; 13. Lower blade; 2. Bed; 21. Main board; 22. Short side board; 3. Rolling assembly; 31. Mounting support; 32. Adjustable support seat; 33. Rotating shaft; 34. Roller column; 35. Driving motor; 4. Medium frequency water-cooled electromagnetic induction heater; 5. Rear stopper assembly; 51. Mounting frame; 52. Stopper seat; 521. Recovery groove; 522. XY translation track; 53. Extension plate; 6. Auxiliary straightening assembly; 61. First cylinder; 62. Edge pressing piece; 621. Movable seat; 6211. Mounting groove; 622. Rolling sleeve; 623. Lower fixed shovel blade; 6231. Shovel edge slope; 624. Second cylinder; 625. Upper movable pressing block; 6251. Sticking slide groove; 7. Electromagnetic fixing assembly; 71. Movable plate; 711. XY translation slider; 72. Mounting beam; 73. Side frame; 74. Third cylinder; 75. Strip frame; 76. Electromagnet. 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] Reference Figure 1-Figure 3As shown, the present invention provides a CNC shearing machine for scrap steel processing and pretreatment, including a frame 1 and a bed 2, the frame 1 includes a tool holder 11, an upper blade 12 and a matching lower blade 13, the surface of the main board 21 is provided with a strip groove for the lower blade 13 to be placed, the upper blade 12 and the lower blade 13 are driven by a hydraulic cylinder, the hydraulic cylinder connected to the upper blade 12 is installed on the top of the tool holder 11, and the hydraulic cylinder connected to the lower blade 13 is installed in the strip groove, the upper blade 12 and the lower blade 13 are pressed together to shear the waste coil, the bed 2 is arranged across the tool holder 11, and the bed 2 includes a main board 21 and a short side board 22, and a gap is reserved between the main board 21 and the short side board 22, and the gap is used for The installation of the medium frequency water-cooled electromagnetic induction heater 4 can locally heat the part of the waste coil that needs to be sheared, and control the temperature at 350-400°C, which can effectively reduce the shear stress; a rear stopper assembly 5 is installed on the side of the main board 21 facing away from the short side plate 22, which is used to locate the shear length of the waste coil. According to the actual processing requirements, the position of the stopper seat 52 on the mounting frame 51 can be fine-tuned, which is specifically achieved by loose and tight fit of common fasteners, which will not be repeated here. It is an existing mature technology, so as to locate and obtain different shear lengths. An auxiliary straightening assembly 6 that can be translated along the length direction of the bed 2 is installed in the rear stopper assembly 5, and the short side plate 2 At least two roller pressing assemblies 3 are installed on the side facing away from the medium frequency water-cooled electromagnetic induction heater 4 to perform preliminary flattening on the waste coils, and the auxiliary straightening assembly 6 is used to cooperate with the roller pressing assembly 3 to further flatten the waste coils to be sheared; wherein, the short side plate 22 is fixed to the side of the medium frequency water-cooled electromagnetic induction heater 4 by reinforcing ribs to prevent the short side plate 22 from being suspended in the air without support; the waste coils can pass through the medium frequency water-cooled electromagnetic induction heater 4 under the pulling of the auxiliary straightening assembly 6, and the medium frequency water-cooled electromagnetic induction heater 4 is used to locally heat the parts of the waste coils that need to be sheared, thereby reducing the shear stress, and further reducing the probability of the coils breaking during the shearing process; after An electromagnetic suction component 7 is also installed on the material blocking component 5. The electromagnetic suction component 7 is located on the side of the tool holder 11 facing away from the medium frequency water-cooled electromagnetic induction heater 4, and is used to suction both sides of the waste coil to prevent the small section of the coil from breaking after shearing. Then the edge clamp 62 releases the small section of the coil after shearing, and the electromagnetic suction component 7 moves the small section of the coil twice to the other end of the rear material blocking component 5. This can facilitate the return and collection of the small section of the coil after shearing, and can also facilitate the subsequent recycling and reuse of the pre-treated waste coils, comprehensively ensuring smooth feeding and return of materials, avoiding the occurrence of material jams, greatly improving the efficiency of the shearing operation, and reducing the probability of accidental injuries to personnel.

[0022] Specifically, in order to achieve the purpose of preliminary flattening of the waste coils, the rolling assembly 3 includes two symmetrically arranged mounting supports 31 and two rollers 34 arranged in sequence from top to bottom. A rotating shaft 33 is fixedly inserted in the middle of the two rollers 34, and an adjustable support seat 32 is sleeved and installed at the ends of the rotating shaft 33. The adjustable support seat 32 can be installed at different positions and heights of the mounting support 31 in cooperation with the fastening bolts, so that the waste coils of different thicknesses can be preliminarily rolled and flattened. By adjusting the distance between the two rollers 34 in the same mounting support 31, the purpose of preliminary flattening of the waste coils of different thicknesses can be achieved; wherein, the ends of each rotating shaft 33 are fixedly inserted in the middle of the two rollers 34, and the ends of the rotating shaft 33 are sleeved and installed with adjustable support seats 32. The adjustable support seats 32 can be installed at different positions and heights of the mounting support 31 in cooperation with the fastening bolts, so that the waste coils of different thicknesses can be preliminarily flattened. By adjusting the distance between the two rollers 34 in the same mounting support 31, the purpose of preliminary flattening of the waste coils of different thicknesses can be achieved. A driving motor 35 for driving its rotation should be installed. The driving motor 35 is attached to the adjustable support seat 32 closest to it through a motor mounting bracket, and the output end of the driving motor 35 is connected to the end of the rotating shaft 33 through a reducer and a coupling in sequence. After the driving motor 35 is started, it can drive the roller 34 to rotate, thereby achieving the purpose of preliminary leveling and roller feeding, wherein the two rollers 34 in the same mounting support 31 rotate in opposite directions; and each adjustable support seat 32 is provided with a roller bearing for supporting the rotation of the rotating shaft 33, so as to support the radial load during the rotation of the rotating shaft 33 and improve the stability of the rotating shaft 33 and the roller 34 during rotation.

[0023] In a further embodiment, referring to Figure 2-Figure 7 As shown, the rear stopper assembly 5 includes two mounting frames 51 symmetrically mounted on both side edges of the tool holder 11, and a stopper seat 52 is commonly mounted on the two mounting frames 51. The stopper seat 52 is arranged parallel to the tool holder 11, and a recovery groove 521 matching the auxiliary straightening assembly 6 is provided on the side of the stopper seat 52 close to the tool holder 11, and an extension plate 53 flush with the top of the stopper seat 52 is installed on the side of the stopper seat 52 away from the tool holder 11, so as to support the position movement of the electromagnetic suction assembly 7.

[0024] In this embodiment, the recovery groove 521 is used to accommodate the reset edge clamp 62. The reset of the edge clamp 62 pulls the coil to feed the material. The distance from the material blocking seat 52 to the upper blade 12, that is, the distance from the edge clamp 62 to the upper blade 12, can be used as a reference for locating the cutting length of the waste coil.

[0025] In a further embodiment, referring to Figure 2-Figure 4As shown, the auxiliary straightening component 6 includes a pressure piece 62 and two first cylinders 61. The two first cylinders 61 penetrate the material blocking seat 52 for fixation. When the first cylinder 61 is shortened to the shortest, it will not protrude in the recovery groove 521, so that the movable seat 621 is reset and stored in the recovery groove 521, ensuring that the distance from the pressure piece 62 to the upper blade 12 is the distance from the material blocking seat 52 to the upper blade 12, which is convenient for positioning the shearing length of the waste coil. The pressure piece 62 includes a movable seat 621. A mounting groove 6211 is provided on the side of the movable seat 621 away from the material blocking seat 52. A row of rolling sleeves 622 are arranged in the mounting groove 6211. The rolling sleeves 622 are rotatably connected to the mounting groove 6211 through a pin shaft. A row of self-rotating rolling sleeves 622 can cooperate with electromagnetic The suction and fixing component 7 sucks and drives the sheared small section of coiled material to move horizontally. The end of the sheared small section of coiled material abuts against this row of rolling sleeves 622, which can smoothly realize the purpose of material withdrawal, greatly reduce the probability of material jamming, and has strong practicality. Two second cylinders 624 are symmetrically installed on the top of the movable seat 621. The output ends of the two second cylinders 624 are fixed with upper movable pressure blocks 625, and the sides of the movable seat 621 are installed with two lower fixed shovels 623 matched with the two upper movable pressure blocks 625. The bottom surfaces of the two lower fixed shovels 623 are flush with the bottom surface of the movable seat 621. In this way, the upper movable pressure block 625 and the lower fixed shovel 623 can clamp and fix the end of the waste coiled material and release it through the extension and contraction of the output end of the second cylinder 624. The end of the lower fixed shovel blade 623 facing away from the movable seat 621 is configured as a shovel edge slope 6231, which is similar to the front end design of a shovel, so as to facilitate clamping the end of the waste coil after scooping it up, reduce manual intervention, and improve work efficiency.

[0026] It should be particularly mentioned that one end of the upper movable pressure block 625 close to the material blocking seat 52 is provided with a sliding groove 6251 that is adapted to the cross-sectional shape of several rolling sleeves 622 facing it, which can avoid interference with the rotation of the rolling sleeves 622 when the upper movable pressure block 625 moves vertically in the vertical direction.

[0027] In this embodiment, the edge clamping member 62 clamps the ends of the waste coils, and cooperates with the pulling effect of the two first cylinders 61. On the basis of the setting of the rolling assembly 3, the waste coils can be further straightened and leveled, thereby facilitating the shearing operation of the waste coils and reducing the possibility of the coils breaking during the shearing process.

[0028] In a further embodiment, referring to Figure 5-Figure 7The electromagnetic suction component 7 includes a movable plate 71, an XY translation slider 711 is installed on the side of the movable plate 71, and an XY translation track 522 for the movement of the XY translation slider 711 is embedded on the top of the material blocking seat 52. The XY translation track 522 is designed and manufactured with reference to the electric slide rail in the prior art, but has two-way translation considerations, and the XY translation slider 711 can walk along an L-shaped path therein. A mounting beam 72 is fixedly installed on the movable plate 71, and both ends of the mounting beam 72 are fixedly connected to side frames 73. Strip frames 75 are arranged under the side frames 73, and electromagnets 76 are installed on the bottom surface of the strip frames 75. The electromagnets 76 are switched between the magnetic attraction and release states by turning on and off the power. Figure 3 In the state shown, the end of the electromagnet 76 close to the medium frequency water-cooled electromagnetic induction heater 4 is within the range of the knife holder 11. In order to achieve a wider suction and fixation purpose for the small section of coiled material after shearing and further reduce the possibility of coil rebound, the suction and fixation span of the electromagnet 76 is made as close as possible to the length of the small section of coiled material after shearing, and a group of third cylinders 74 matching the strip frame 75 below are installed on the two side frames 73 at intervals to control the timely lifting and lowering of the two electromagnets 76 to avoid interference with the movement of the edge clamp 62. Specifically, after the shearing is completed, the two upper movable The pressing block 625 moves upward, and the two electromagnets 76 are lowered to fix the small section of coil obtained by shearing, and both sides of the small section of coil are fixed. Then, in conjunction with the L-shaped walking path of the movable plate 71, the two electromagnets 76 can be first moved close to the end of the medium-frequency water-cooled electromagnetic induction heater 4 and pulled out from the tool holder 11. Then, the end of the small section of coil is against a row of rolling sleeves 622, and it can be translated to the other end of the rear stop assembly 5. After it is in place, the electromagnet 76 is powered off and loses its magnetism, and the small section of coil falls down and can be collected in the material box, thereby completing the purpose of returning and collecting the small section of coil after shearing.

[0029] In this embodiment, after the edge clamp 62 pulls the waste coil close to the material blocking seat 52, the two electromagnets 76 are lowered. The two electromagnets 76 are energized to generate magnetic attraction, which can widely attract and fix the two sides of the waste coil, in order to prevent the small sections of the coil from breaking after shearing. Then, the two upper movable pressing blocks 625 loosen the small sections of the coil after shearing, and the two electromagnets 76 follow the movable plate 71 to first translate to the side away from the medium frequency water-cooled electromagnetic induction heater 4, and then translate to the other end of the rear stop assembly 5, that is, move along the L-shaped path, thereby achieving the purpose of smoothly returning the small sections of the coil after shearing, reducing the occurrence of material jamming, and also facilitating its collection and putting it into the next stage of recycling and reuse of the waste coil (scrap steel).

[0030] 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 CNC shearing machine for scrap steel processing and pretreatment, comprising a frame and a bed, wherein the frame comprises a tool holder, an upper blade and a matching lower blade, and the upper blade and the lower blade can shear the scrap coil when pressed together, characterized in that: The bed is arranged across the tool holder, and the bed includes a main board and a short side board, and a gap is reserved between the main board and the short side board, and the gap is used for installing the medium-frequency water-cooled electromagnetic induction heater; A rear stopper assembly is installed on the side of the main board facing away from the short side board, which is used to locate the shearing length of the waste coils. An auxiliary straightening assembly that can be translated along the length direction of the bed is installed in the rear stopper assembly. At least two roller pressing assemblies are installed on the side of the short side board facing away from the medium frequency water-cooled electromagnetic induction heater to perform preliminary flattening of the waste coils. The auxiliary straightening assembly is used to cooperate with the roller pressing assembly to further flatten the waste coils to be sheared. The rear stop assembly is also equipped with an electromagnetic suction assembly, which is located on the side of the knife holder facing away from the medium-frequency water-cooled electromagnetic induction heater and is used to suction both sides of the waste coil to prevent the small sections of the coil from breaking after shearing, and to facilitate the return and collection of the small sections of the coil after shearing.

2. The CNC shearing machine for scrap steel processing and pretreatment according to claim 1 is characterized in that: The rolling assembly includes two symmetrically arranged mounting supports and two rollers arranged in sequence up and down. A rotating shaft is fixedly inserted in the middle of the two rollers, and an adjustable supporting seat is sleeved and installed at the ends of the rotating shaft. The adjustable supporting seat can be installed at different positions and heights of the mounting supports in cooperation with fastening bolts, so that waste coils of different thicknesses can be preliminarily rolled and leveled.

3. A CNC shearing machine for scrap steel processing and pretreatment according to claim 1 or 2, characterized in that: The rear material stop assembly includes two mounting frames symmetrically mounted on both sides of the tool holder, a material stop seat is mounted on the two mounting frames, a recovery groove matching the auxiliary straightening assembly is provided on the side of the material stop seat close to the tool holder, and an extension plate flush with the top of the material stop seat is mounted on the side of the material stop seat away from the tool holder to support the position movement of the electromagnetic suction assembly.

4. The CNC shearing machine for scrap steel processing and pretreatment according to claim 3 is characterized in that: The auxiliary straightening assembly includes a pressure piece and two first cylinders, the two first cylinders penetrate the material stop seat for fixation, the pressure piece includes a movable seat, a mounting groove is provided on the side of the movable seat away from the material stop seat, a row of rolling sleeves are arranged in the mounting groove, the rolling sleeves are rotatably connected to the mounting groove through pins, two second cylinders are symmetrically installed on the top of the movable seat, upper movable pressure blocks are fixed at the output ends of the two second cylinders, and two lower fixed shovel pieces matching the two upper movable pressure blocks are installed on the side of the movable seat, and the bottom surfaces of the two lower fixed shovel pieces are flush with the bottom surface of the movable seat.

5. The CNC shearing machine for scrap steel processing and pretreatment according to claim 4 is characterized in that: The ends of the lower fixed shovel blades facing away from the movable seat are all arranged as shoveling edge slope surfaces, so as to facilitate clamping the ends of the waste coils after shoveling them up.

6. The CNC shearing machine for scrap steel processing and pretreatment according to claim 4 is characterized in that: The upper movable pressing block is provided with a sliding groove matching the cross-sectional shape of a plurality of rolling sleeves facing it at one end close to the material blocking seat, so as to avoid interference with the rotation of the rolling sleeves when the upper movable pressing block moves vertically.

7. The CNC shearing machine for scrap steel processing and pretreatment according to claim 4 is characterized in that: The electromagnetic suction assembly includes a movable plate, an XY translation slider is installed on the side of the movable plate, and an XY translation track for the movement of the XY translation slider is embedded on the top of the material blocking seat, a mounting beam is fixedly installed on the movable plate, both ends of the mounting beam are fixedly connected to side frames, strip frames are arranged below the side frames, electromagnets are installed on the bottom surfaces of the strip frames, and a group of third cylinders matching the strip frames below them are installed at intervals on the two side frames, which are used to control the timely lifting and lowering of the two electromagnets to avoid interference with the movement of the edge holding piece.

8. The CNC shearing machine for scrap steel processing and pretreatment according to claim 2 is characterized in that: A driving motor for driving the rotation of each rotating shaft is installed at the end thereof. The driving motor is attached to the adjustable support seat closest to it through a motor mounting bracket, and the output end of the driving motor is connected to the end of the rotating shaft through a reducer and a coupling in sequence; and a roller bearing for supporting the rotation of the rotating shaft is arranged in each adjustable support seat.

9. The CNC shearing machine for scrap steel processing and pretreatment according to claim 1, characterized in that: The short side plate is fixed to the side of the medium frequency water-cooled electromagnetic induction heater through reinforcing ribs to prevent the short side plate from being suspended in the air without support; the waste coil can pass through the medium frequency water-cooled electromagnetic induction heater under the pulling of the auxiliary straightening component, and the medium frequency water-cooled electromagnetic induction heater is used to locally heat the parts of the waste coil that need to be sheared, thereby reducing the shear stress and further reducing the probability of the coil breaking during the shearing process.

10. The CNC shearing machine for scrap steel processing and pretreatment according to claim 1, characterized in that: The surface of the main board is provided with a strip groove for accommodating the lower blade. The upper blade and the lower blade are driven by hydraulic cylinders. The hydraulic cylinder connected to the upper blade is installed on the top of the tool holder, and the hydraulic cylinder connected to the lower blade is installed in the strip groove.

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