Device and method for removing steel billet edge cutting nodules

Abstract

The invention discloses a clearing device and method for steel billet edge cutting nodules. The clearing device comprises a fixing part, an adjusting part, a displacement part, an upper clearing part and a lower clearing part. The fixed part and the displacement part are arranged on the adjusting part; the upper cleaning part and the lower cleaning part are arranged on the displacement part; the adjusting part comprises a base, universal wheels and a stand column; universal wheels are arranged at four corners of the lower end surface of the base; the center of the bottom end face of the stand column is coupled with the upper end face of the base. A guide ring is arranged on the upper end face of the base, a guide groove is formed in the bottom end face of the stand column, and the guide ring of the base is clamped in the guide groove in the bottom end of the stand column. According to the steel billet cutting device, cutting nodules are cleared away in the steel billet cutting process, the time consumed for clearing away the cutting nodules is shortened, and the cutting nodules are thoroughly cleared away.

Description

Technical Field

[0001] The present invention relates to a device and method for removing cutting nodules on the edge of a steel billet, and in particular to a device and method capable of efficiently removing cutting nodules generated at the upper and lower edges of a steel billet during thermal cutting, and belongs to the technical field of steel billet cutting nodule cleaning equipment. Background Art

[0002] Since the continuous casting billet is long, it needs to be cut to meet the length requirement, so as to meet the length requirement of a single billet. The cutting of the continuous casting billet is completed by a flame cutting machine. Before the cutting begins, a mixture of fuel gas and low-pressure oxygen is used to heat the steel surface to the ignition point and form an activated state. Then, high-purity and high-flow cutting oxygen is introduced to make the iron in the steel burn in the oxygen to generate iron oxide slag and release a large amount of heat. With the help of this heat and slag, the lower layer of steel reaches the combustion value until the bottom of the steel piece, thereby achieving the purpose of cutting. In this process, the molten metal oxides on the upper edge of the cutting seam are accumulated on the outer edge of the cutting seam under the action of the cutting oxygen flow to form an upper cutting nodule. In the process of the cutting oxygen longitudinally cutting the billet downward, most of the molten metal oxides The objects are blown away by the cutting oxygen flow, but a small part of them will still hang on the lower edge of the cutting seam of the steel billet, forming a lower cutting nodule, and the cutting nodule and the surface of the steel billet are similar to the welding between steel parts, which is not easy to remove; at present, for the removal of the cutting nodule, the most widely used method in the existing technology is to install a deburring machine and other mechanical removal devices at the billet discharge roller for cleaning. Although the deburring machine and other mechanical removal devices can remove the burrs on the upper and lower edges of the cutting seam of the continuous casting billet, due to the complexity of the device and the multiple interlocking limits, once a fault occurs, the troubleshooting time is long, which will result in a large number of continuous casting billets unable to be cleared of burrs in time; on the other hand, if the upper and lower blades of the deburring machine are adjusted too tightly, it will cause deep scratches on the surface of the continuous casting billet, and if the adjustment is too loose, the burrs cannot be removed; therefore, a device and method that can efficiently remove the cutting nodules at the upper and lower edges of the steel billet are needed. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a device and method for removing cutting bumps on the edge of a steel billet, which can efficiently and thoroughly remove the cutting bumps at the upper and lower edges of the steel billet.

[0004] The problem described in the present invention is solved by the following technical solutions: A device for removing cutting nodules on the edge of a steel billet comprises a fixed part, an adjustment part, a displacement part, an upper cleaning part and a lower cleaning part; the fixed part and the displacement part are both arranged on the adjustment part; the upper cleaning part and the lower cleaning part are both arranged on the displacement part; the adjustment part comprises a base, a universal wheel and a column; universal wheels are arranged at the four corners of the lower end surface of the base; the center of the bottom end surface of the column is axially connected to the upper end surface of the base; a guide ring is arranged on the upper end surface of the base, and a guide groove is arranged on the bottom end surface of the column, and the guide ring of the base is clamped in the guide groove at the bottom end of the column.

[0005] The above-mentioned device for removing cutting tumors on the edge of steel billets, the fixing part includes two fixing mechanisms, and the two fixing mechanisms are symmetrically arranged on two opposite side walls of the column; the fixing mechanism includes a horizontal pillar, a vertical plate and a clamping piece; the horizontal pillar is arranged on the side wall of the column; the vertical plate is arranged at the end of the horizontal pillar; the number of the clamping pieces is two, and they are respectively arranged at the top and bottom ends of the vertical plate.

[0006] The above-mentioned device for removing cutting nodules on the edge of steel billets, the clamping part includes a fixed plate, a splint, a guide rod and a screw; the fixed plate is arranged at the end of the vertical plate, and guide holes are arranged at both ends, and a guide rod is passed through each guide hole; the splint is arranged at the end of the guide rod; the splint is located between two fixed plates; a threaded hole is arranged in the center of the fixed plate, and the screw passes through the center threaded hole of the fixed plate, and the end of the screw is connected to the center axis of the end face of the splint.

[0007] The above-mentioned device for removing cutting tumors on the edge of steel billets, the displacement part includes an upper displacement mechanism, a lower displacement mechanism and a driving mechanism; the upper displacement mechanism and the lower displacement mechanism are both arranged on the column, and the upper displacement mechanism is located above the lower displacement mechanism; the driving mechanism is arranged on the column, and it is in contact with the lower displacement mechanism.

[0008] The above-mentioned device for removing cutting tumors on the edge of the steel billet, the upper displacement mechanism includes an upper horizontal long rod, a connecting strip and a connecting plate; two guide holes are symmetrically arranged at the top end of the side wall of the column in the horizontal direction, and the two upper horizontal long rods are respectively inserted into two different guide holes at the top end of the column; the center lines of the two upper horizontal long rods are parallel; a connecting strip and a connecting plate are arranged between the two upper horizontal long rods, and the connecting strip and the connecting plate are respectively located at the two ends of the upper horizontal long rods; a walking wheel is arranged at the end of the lower end surface of the upper horizontal long rod away from the connecting plate.

[0009] The above-mentioned device for removing cutting tumors on the edge of steel billets, the lower displacement mechanism includes a lower horizontal long rod and a sleeve; a guide hole is provided at the center of the bottom end of the side wall of the column, and the lower horizontal long rod is inserted into the guide hole at the bottom end of the column; the center line of the lower horizontal long rod is parallel to the center line of the upper horizontal long rod, and the center point of the lower horizontal long rod is located directly below the midpoint of the connecting line of the two lower horizontal long rod center points; one end of the lower horizontal long rod is connected to the connecting strip through a bracket; the sleeve is sleeved on the end of the lower horizontal long rod away from the connecting strip; a threaded hole is provided on the side wall of the sleeve, and the bolt passes through the threaded hole on the side wall of the sleeve and presses on the lower horizontal long rod.

[0010] The above-mentioned device for removing cutting tumors on the edge of steel billets, the driving mechanism includes a motor and a driving gear; the motor housing is arranged on the side wall of the column, and a driving gear is arranged on its output shaft; the bottom end surface of the lower horizontal long rod is provided with teeth along its length direction; the driving gear is meshed and transmission connected with the teeth at the bottom end of the lower horizontal long rod.

[0011] The above-mentioned device for removing cutting nodules on the edge of steel billets, the upper cleaning part includes a vertical tube, a flame cutting gun and an upper purge gun; a vertical hole is provided on the end face of the connecting plate away from the column, and the vertical tube is arranged in the vertical hole of the connecting plate; the flame cutting gun is inserted in the hole of the vertical tube; a threaded hole is provided on the side wall of the vertical tube, and the bolt passes through the threaded hole of the side wall of the vertical tube and presses on the side wall of the flame cutting gun; the number of the upper purge guns is two, and they are symmetrically arranged on both sides of the lower end face of the connecting plate; the upper purge gun includes a gas pipe and an oxygen pipe; the intersection of the center lines of the two upper purge guns is located directly above the center line of the lower horizontal long rod; the flame cutting gun is located directly above the center line of the lower horizontal long rod.

[0012] The above-mentioned device for removing cutting tumors on the edge of steel billets, the lower cleaning part includes a square tube, a vertical rod, a flat plate and a lower purge gun; the square tube is arranged on the end face of the sleeve away from the lower horizontal long rod; the vertical rod is inserted into the hole at the top end of the square tube; a spring is arranged at the bottom end of the inner wall of the square tube, and the spring is connected to the bottom end of the vertical rod; the flat plate is arranged on the top end face of the vertical rod, and the length direction line of the flat plate is perpendicular to the center line of the lower horizontal long rod; walking wheels are respectively arranged at both ends of the upper end face of the flat plate; the number of the lower purge guns is two, and they are symmetrically arranged at both ends of the upper end face of the flat plate; the lower purge gun includes a gas pipe and an oxygen pipe, and the intersection of the center lines of the two lower purge guns is located directly above the center line of the lower horizontal long rod.

[0013] A method for removing cutting nodules on the edge of a steel billet comprises the following steps: When it is necessary to cut the steel billet, confirm the position of the cutting line, then push the device to the position beside the steel billet cutting line, and then push the base close to the steel billet until the end faces of the two vertical plates are in close contact with the side walls of the steel billet; then, under the premise that the vertical plates are in contact with the side walls of the steel billet, translate the base so that the lower horizontal long rod is aligned with the steel billet cutting line, and the flame cutting gun is located directly above the cutting line; at this time, the travel wheel at the end of the upper horizontal long rod touches and presses on the top surface of the steel billet; Step 1: After the device is in place, tighten the screw so that the clamps on both sides clamp the billet, thereby fixing the relative position between the column and the billet; then start the motor to adjust the position of the flame cutting gun so that it is aligned with the edge line of the billet, and then adjust the vertical height of the flame cutting gun so that it can maintain a reasonable distance from the top surface of the billet; Step 2: Start the flame cutting gun and the upper purge gun. The flame cutting gun cuts the steel billet, and the upper purge gun purges the cutting nodules on the upper edge of the steel billet. Start the motor to drive the upper horizontal long rod and the lower horizontal long rod to move forward slowly along the steel billet cutting line. During the moving process, the flame cutting gun cuts a slit on the steel billet cutting line. Step 3: Since the flame cutting gun is in front and the lower cleaning part is slightly behind, the lower cleaning part does not touch the billet in the initial stage. After the flame cutting gun moves forward a short distance, the lower cleaning part touches the billet. At this time, under the action of the spring, the walking wheel on the flat plate presses on the bottom end surface of the billet, and the lower purge gun purges the cutting nodule on the lower edge of the billet; Step 4: When the flame cutting gun moves to the end and the billet cutting is completed, turn off the flame cutting gun, the upper purge gun and the lower purge gun; then the motor reverses to drive each part to reset. After the flame cutting gun is separated from the billet, loosen the screw and remove the device. At this point, the operation of removing the cutting tumor during the billet cutting operation is completed.

[0014] The present invention clears the cutting nodules on the upper and lower edges of the steel billet respectively through an upper cleaning part and a lower cleaning part; a mixed gas of propane and oxygen is injected into the purging gun, and when the molten cutting nodules are purged by using the high-speed gas flow, if the cutting nodules have cooled, they are heated again to be melted and then purged; if the cutting nodules remain in a molten state, they are directly purged; the adjusting part is fixed by the fixing part to ensure that the displacement part can smoothly drive the cleaning part forward. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure at a low angle of the present invention; Figure 2 It is a schematic diagram of a partially enlarged structure of A of the present invention; Figure 3 It is a schematic diagram of the elevation angle stereo structure of the present invention.

[0016] The list of numbers in the figure is as follows: 1. Base, 2. Universal wheel, 3. Column, 4. Vertical plate, 5. Fixed plate, 6. Clamp, 7. Guide rod, 8. Screw, 9. Upper horizontal long rod, 10. Connecting strip, 11. Connecting plate, 12. Lower horizontal long rod, 13. Sleeve, 14. Motor, 15. Driving gear, 16. Vertical cylinder, 17. Flame cutting gun, 18. Upper purge gun, 19. Square cylinder, 20. Vertical rod, 21. Flat plate, 22. Lower purge gun. DETAILED DESCRIPTION

[0017] See also Figure 1 , 2 and Figure 3 The present invention comprises a fixed part, an adjusting part, a displacement part, an upper cleaning part and a lower cleaning part; the fixed part and the displacement part are both arranged on the adjusting part; the upper cleaning part and the lower cleaning part are both arranged on the displacement part; the upper cleaning part cleans the cutting nodule on the upper edge of the steel billet, and the lower cleaning part cleans the cutting nodule on the lower edge of the steel billet.

[0018] The adjustment part includes a base 1, universal wheels 2 and a column 3; universal wheels 2 are provided at the four corners of the lower end surface of the base 1; the base 1 can be moved at will and then moved to a specified position through the universal wheels 3; the center of the bottom end surface of the column 3 is axially connected to the upper end surface of the base 1; a guide ring is provided on the upper end surface of the base 1, and a guide groove is provided on the bottom end surface of the column 3, and the guide ring of the base 1 is clamped in the guide groove at the bottom end of the column 3; the cooperation of the guide ring and the guide groove allows the column 3 to rotate reliably, and the rotation of the column 3 allows the two fixing mechanisms to be in place faster for clamping and fixing.

[0019] The fixing part includes two fixing mechanisms, and the two fixing mechanisms are symmetrically arranged on two opposite side walls of the column 3; the side walls of the steel billet are clamped by the two fixing mechanisms, so as to facilitate the subsequent cutting operations and the removal of cutting tumors to be carried out smoothly; the fixing mechanism includes a horizontal pillar, a vertical plate 4 and a clamping piece; the horizontal pillar is arranged on the side wall of the column 3; the vertical plate 4 is arranged at the end of the horizontal pillar; the number of the clamping pieces is two, and they are respectively arranged at the top and bottom ends of the vertical plate 4.

[0020] The clamping member includes a fixed plate 5, a clamping plate 6, a guide rod 7 and a screw 8; the fixed plate 5 is arranged at the end of the vertical plate 4, and guide holes are arranged at both ends thereof, and a guide rod 7 is passed through each guide hole; the clamping plate 6 is arranged at the end of the guide rod 7; the guide rod 7 provides a reliable guide for the movement of the clamping plate 6; the clamping plate 6 is located between the two fixed plates 5; the two clamping plates 6 are close to each other, thereby achieving the purpose of clamping the steel billet; a threaded hole is arranged at the center of the fixed plate 5, and the screw 8 passes through the center threaded hole of the fixed plate 5, and the end of the screw 8 is connected to the center axis of the end face of the clamping plate 6; rotating the screw 8 can drive the clamping plate 6 to move, thereby achieving the purpose of clamping the steel billet by the clamping plates 6 on both sides.

[0021] The displacement part includes an upper displacement mechanism, a lower displacement mechanism and a driving mechanism; the upper displacement mechanism and the lower displacement mechanism are both arranged on the column 3, and the upper displacement mechanism is located above the lower displacement mechanism; the driving mechanism is arranged on the column 3, and it is in contact with the lower displacement mechanism; the driving mechanism can drive the upper displacement mechanism and the lower displacement mechanism to move forward or backward synchronously.

[0022] The upper displacement mechanism includes an upper horizontal long rod 9, a connecting strip 10 and a connecting plate 11; two guide holes are symmetrically arranged at the top end of the side wall of the column 3 in the horizontal direction, and the two upper horizontal long rods 9 are respectively inserted into two different guide holes at the top end of the column 3; the sliding of the upper horizontal long rod 9 at the guide hole position provides a guiding effect; the center lines of the two upper horizontal long rods 9 are parallel; a connecting strip 10 and a connecting plate 11 are arranged between the two upper horizontal long rods 9, and the connecting strip 10 and the connecting plate 11 are respectively located at the two ends of the upper horizontal long rod 9; a walking wheel is arranged at one end of the lower end face of the upper horizontal long rod 9 away from the connecting plate 11; when the upper horizontal long rod 9 moves forward above the steel billet, the walking wheel can ensure that the upper horizontal long rod 9 can remain straight and not bend, so as to avoid the bending of the upper horizontal long rod 9 due to the excessive length of the upper horizontal long rod 9, which affects the cutting operation and the cutting tumor removal operation.

[0023] The lower displacement mechanism includes a lower horizontal long rod 12 and a sleeve 13; a guide hole is provided at the center of the bottom end of the side wall of the column 3, and the lower horizontal long rod 12 is inserted into the guide hole at the bottom end of the column 3; the guide hole at the bottom end of the column 3 provides a guide for the lower horizontal long rod 12; the center line of the lower horizontal long rod 12 is parallel to the center line of the upper horizontal long rod 9, and the center point of the lower horizontal long rod 12 is located directly below the midpoint of the connecting line of the center points of the two lower horizontal long rods 12; the cutting seam of the steel billet is located at the lower horizontal long rod 12 Directly above; one end of the lower horizontal long rod 12 is connected to the connecting strip 10 through a bracket; the sleeve 13 is sleeved on the end of the lower horizontal long rod 12 away from the connecting strip 10; threaded holes are provided on the side walls of the sleeve 13, and bolts pass through the threaded holes on the side walls of the sleeve 13 and press on the lower horizontal long rod 12, and the position of the sleeve 13 can be fixed by tightening the bolts; the position of the lower cleaning part can be adjusted by sliding the sleeve 13, thereby ensuring that the lower cleaning part can remove the lower edge cutting tumor at a suitable position.

[0024] The driving mechanism includes a motor 14 and a driving gear 15; the housing of the motor 14 is arranged on the side wall of the column 3, and the driving gear 15 is arranged on its output shaft; the bottom end surface of the lower horizontal long rod 12 is provided with teeth along its length direction; the driving gear 15 is meshed and connected with the teeth at the bottom end of the lower horizontal long rod 12; the motor 14 can drive the driving gear 15 to rotate, thereby driving the lower horizontal long rod 12 and the upper horizontal long rod to move forward synchronously.

[0025] The upper cleaning part includes a vertical tube 16, a flame cutting gun 17 and an upper purge gun 18; a vertical hole is provided on the end surface of the connecting plate 11 away from the column 3, and the vertical tube 16 is arranged in the vertical hole of the connecting plate 11; the flame cutting gun 17 is inserted in the hole of the vertical tube 16; a threaded hole is provided on the side wall of the vertical tube 16, and the bolt passes through the threaded hole of the side wall of the vertical tube 16 and presses on the side wall of the flame cutting gun 17; the flame cutting gun 17 can slide vertically in the vertical tube 16, and then adjust the vertical position of the flame cutting gun 17 to ensure that the flame A reasonable distance is maintained between the flame cutting gun 17 and the surface of the steel billet; there are two upper purge guns 18, which are symmetrically arranged on both sides of the lower end surface of the connecting plate 11; the upper purge guns 18 on both sides can clear the cutting nodules on the rear side of the cutting gun in real time, and the airflow blown out by the upper purge guns does not directly contact the flame flow of the flame cutting gun; the upper purge guns 18 include a fuel gas pipe and an oxygen pipe; the intersection of the center lines of the two upper purge guns 18 is located directly above the center line of the lower horizontal long rod 12; the flame cutting gun 17 is located directly above the center line of the lower horizontal long rod 12.

[0026] The lower cleaning part includes a square cylinder 19, a vertical rod 20, a flat plate 21 and a lower purge gun 22; the square cylinder 19 is arranged on the end surface of the sleeve 13 away from the lower horizontal long rod 12; the vertical rod 20 is inserted into the hole at the top of the square cylinder 19; a spring is arranged at the bottom end of the inner wall of the square cylinder 19, and the spring is connected to the bottom end of the vertical rod 20; the spring provides an upward force for the vertical rod 20 to ensure that the walking wheel on the flat plate 21 can reliably contact and press on the bottom end surface of the billet, and the cutting seam of the billet is located between the two walking wheels; the flat plate 21 is arranged at the top end of the vertical rod 20 The flat plate 21 is on the surface, and the length direction line of the flat plate 21 is perpendicular to the center line of the lower horizontal long rod 12; walking wheels are respectively provided at both ends of the upper end surface of the flat plate 21; the number of the lower purge guns 22 is two, and they are symmetrically arranged at both ends of the upper end surface of the flat plate 21; the lower purge guns 22 remove the cutting nodules on the lower edge of the billet, and the flame blown out by the lower purge gun does not directly contact the flame flow of the flame cutting gun; the lower purge guns 22 include a gas pipe and an oxygen pipe, and the intersection of the center lines of the two lower purge guns 22 is located directly above the center line of the lower horizontal long rod 12.

[0027] The present invention comprises the following steps: When it is necessary to cut the steel billet, confirm the position of the cutting line, then push the device to the position beside the steel billet cutting line, and then push the base 1 close to the steel billet until the end faces of the two vertical plates 4 are in close contact with the side walls of the steel billet; then, under the premise that the vertical plates 4 are in contact with the side walls of the steel billet, translate the base 1 so that the lower horizontal long rod 12 is aligned with the steel billet cutting line, and the flame cutting gun 17 is located directly above the cutting line; at this time, the travel wheel at the end of the upper horizontal long rod 9 touches the top surface of the steel billet; Step 1: After the device is in place, tighten the screw 8 so that the clamps 6 on both sides clamp the steel billet, thereby fixing the relative position between the column 3 and the steel billet; then start the motor 14 to adjust the position of the flame cutting gun 17 so that it is aligned with the edge line of the steel billet, and then adjust the vertical height of the flame cutting gun 17 so that it can maintain a reasonable distance from the top surface of the steel billet; Step 2: Start the flame cutting gun 17 and the upper purge gun 18, the flame cutting gun 17 cuts the steel billet, and the upper purge gun 18 purges the cutting nodules on the upper edge of the steel billet; start the motor 14 to drive the upper horizontal long rod 9 and the lower horizontal long rod 12 to move forward slowly along the steel billet cutting line, and during the moving process, the flame cutting gun 17 cuts a slit on the steel billet cutting line; Step 3: Since the flame cutting gun 17 is in front and the lower cleaning part is slightly behind, the lower cleaning part does not contact the steel billet in the initial stage. After the flame cutting gun 17 moves forward a short distance, the lower cleaning part contacts the steel billet. At this time, under the action of the spring, the travel wheel on the plate 21 presses on the bottom end surface of the steel billet, and the lower purge gun 22 performs a purge operation on the cutting nodule on the lower edge of the steel billet. Step 4: When the flame cutting gun 17 moves to the end and the billet cutting is completed, close the flame cutting gun 17, the upper purge gun 18 and the lower purge gun 22; then the motor 14 reverses to drive each part to reset, and when the flame cutting gun 17 is separated from the billet, loosen the screw 8 and remove the device. At this point, the operation of removing the cutting tumor during the billet cutting operation is completed.

Claims

1. A device for removing cutting nodules on the edge of a steel billet, characterized in that: The utility model comprises a fixed part, an adjustment part, a displacement part, an upper cleaning part and a lower cleaning part; the fixed part and the displacement part are both arranged on the adjustment part; the upper cleaning part and the lower cleaning part are both arranged on the displacement part; the adjustment part comprises a base (1), a universal wheel (2) and a column (3); the four corners of the lower end surface of the base (1) are each provided with a universal wheel (2); the center of the bottom end surface of the column (3) is axially connected to the upper end surface of the base (1); the upper end surface of the base (1) is provided with a guide ring, and the bottom end surface of the column (3) is provided with a guide groove, and the guide ring of the base (1) is clamped in the guide groove at the bottom end of the column (3).

2. The device for removing the cutting bumps on the edge of a steel billet according to claim 1, characterized in that: The fixing part comprises two fixing mechanisms, and the two fixing mechanisms are symmetrically arranged on two opposite side walls of the column (3); the fixing mechanism comprises a horizontal pillar, a vertical plate (4) and a clamping member; the horizontal pillar is arranged on the side wall of the column (3); the vertical plate (4) is arranged at the end of the horizontal pillar; the number of the clamping members is two, and they are respectively arranged at the top end and the bottom end of the vertical plate (4).

3. The device for removing the cutting bumps on the edge of a steel billet according to claim 2, characterized in that: The clamping member comprises a fixing plate (5), a clamping plate (6), a guide rod (7) and a screw rod (8); the fixing plate (5) is arranged at the end of the vertical plate (4), and guide holes are arranged at both ends of the fixing plate (5), and a guide rod (7) is passed through each guide hole; the clamping plate (6) is arranged at the end of the guide rod (7); the clamping plate (6) is located between the two fixing plates (5); a threaded hole is arranged at the center of the fixing plate (5), and the screw rod (8) passes through the center threaded hole of the fixing plate (5), and the end of the screw rod (8) is connected to the center axis of the end face of the clamping plate (6).

4. The device for removing the cutting bumps on the edge of a steel billet according to claim 3, characterized in that: The displacement part comprises an upper displacement mechanism, a lower displacement mechanism and a driving mechanism; the upper displacement mechanism and the lower displacement mechanism are both arranged on the column (3), and the upper displacement mechanism is located above the lower displacement mechanism; the driving mechanism is arranged on the column (3), and is in contact with the lower displacement mechanism.

5. The device for removing the cutting bumps on the edge of a steel billet according to claim 4, characterized in that: The upper displacement mechanism comprises an upper horizontal long rod (9), a connecting strip (10) and a connecting plate (11); two guide holes are symmetrically arranged at the top of the side wall of the column (3) in the horizontal direction, and the two upper horizontal long rods (9) are respectively inserted into two different guide holes at the top of the column (3); the center lines of the two upper horizontal long rods (9) are parallel; a connecting strip (10) and a connecting plate (11) are arranged between the two upper horizontal long rods (9), and the connecting strip (10) and the connecting plate (11) are respectively located at two ends of the upper horizontal long rod (9); and a walking wheel is arranged at one end of the lower end surface of the upper horizontal long rod (9) away from the connecting plate (11).

6. The device for removing the cutting bumps on the edge of a steel billet according to claim 5, characterized in that: The lower displacement mechanism comprises a lower horizontal long rod (12) and a sleeve (13); a guide hole is provided at the center of the bottom end of the side wall of the column (3), and the lower horizontal long rod (12) is inserted into the guide hole at the bottom end of the column (3); the center line of the lower horizontal long rod (12) is parallel to the center line of the upper horizontal long rod (9), and the center point of the lower horizontal long rod (12) is located directly below the midpoint of the connecting line of the center points of the two lower horizontal long rods (12); one end of the lower horizontal long rod (12) is connected to the connecting strip (10) through a bracket; the sleeve (13) is sleeved on the end of the lower horizontal long rod (12) away from the connecting strip (10); a threaded hole is provided on the side wall of the sleeve (13), and a bolt passes through the threaded hole on the side wall of the sleeve (13) and contacts and presses on the lower horizontal long rod (12).

7. The device for removing the cutting bumps on the edge of a steel billet according to claim 6, characterized in that: The driving mechanism comprises a motor (14) and a driving gear (15); the housing of the motor (14) is arranged on the side wall of the column (3), and the driving gear (15) is arranged on the output shaft thereof; the bottom end surface of the lower horizontal long rod (12) is provided with teeth along its length direction; the driving gear (15) is meshed and transmission-connected with the teeth at the bottom end of the lower horizontal long rod (12).

8. The device for removing cutting bumps on the edge of a steel billet according to claim 7, characterized in that: The upper cleaning part comprises a vertical tube (16), a flame cutting gun (17) and an upper purge gun (18); a vertical hole is arranged on the end surface of the connecting plate (11) away from the column (3), and the vertical tube (16) is arranged in the vertical hole of the connecting plate (11); the flame cutting gun (17) is inserted into the hole of the vertical tube (16); a threaded hole is arranged on the side wall of the vertical tube (16), and a bolt passes through the threaded hole on the side wall of the vertical tube (16) and contacts the side wall of the flame cutting gun (17); the number of the upper purge guns (18) is two, and they are symmetrically arranged on both sides of the lower end surface of the connecting plate (11); the upper purge gun (18) comprises a gas pipe and an oxygen pipe; the intersection of the center lines of the two upper purge guns (18) is located directly above the center line of the lower horizontal long rod (12); the flame cutting gun (17) is located directly above the center line of the lower horizontal long rod (12).

9. The device for removing cutting bumps on the edge of a steel billet according to claim 8, characterized in that: The lower cleaning part comprises a square tube (19), a vertical rod (20), a flat plate (21) and a lower purge gun (22); the square tube (19) is arranged on the end surface of the sleeve (13) away from the lower horizontal long rod (12); the vertical rod (20) is inserted into the hole at the top end of the square tube (19); a spring is arranged at the bottom end of the inner wall of the square tube (19), and the spring is connected to the bottom end of the vertical rod (20); the flat plate (21) is arranged on the top end surface of the vertical rod (20), and the length direction line of the flat plate (21) is perpendicular to the center line of the lower horizontal long rod (12); walking wheels are respectively arranged at both ends of the upper end surface of the flat plate (21); the number of the lower purge guns (22) is two, and they are symmetrically arranged at both ends of the upper end surface of the flat plate (21); the lower purge gun (22) comprises a gas pipe and an oxygen pipe, and the intersection of the center lines of the two lower purge guns (22) is located directly above the center line of the lower horizontal long rod (12).

10. A method for removing cutting bumps on the edge of a steel billet according to any one of claims 1 to 9, characterized in that: The steps include: When it is necessary to cut the steel billet, the position of the cutting line is confirmed, and then the device is pushed to a position beside the steel billet cutting line, and then the base (1) is pushed close to the steel billet until the end faces of the two vertical plates (4) are in close contact with the side walls of the steel billet; then, under the premise that the vertical plates (4) are in contact with the side walls of the steel billet, the base (1) is translated so that the lower horizontal long rod (12) is aligned with the steel billet cutting line, and the flame cutting gun (17) is located directly above the cutting line; at this time, the travel wheel at the end of the upper horizontal long rod (9) contacts the top surface of the steel billet; Step 1: After the device is in place, tighten the screw (8) so that the clamping plates (6) on both sides clamp the steel billet, thereby fixing the relative position between the column (3) and the steel billet; then start the motor (14) to adjust the position of the flame cutting gun (17) so that it is aligned with the edge line of the steel billet, and then adjust the vertical height of the flame cutting gun (17) so that it can maintain a reasonable distance from the top surface of the steel billet; Step 2: Start the flame cutting gun (17) and the upper purge gun (18), the flame cutting gun (17) cuts the steel billet, and the upper purge gun (18) purges the cutting nodules on the upper edge of the steel billet; start the motor (14) to drive the upper horizontal long rod (9) and the lower horizontal long rod (12) to slowly move forward along the steel billet cutting line, and during the moving forward process, the flame cutting gun (17) cuts a slit on the steel billet cutting line; Step 3: Since the flame cutting gun (17) is in front and the lower cleaning part is slightly behind, the lower cleaning part does not contact the steel billet in the initial stage. After the flame cutting gun (17) moves forward a short distance, the lower cleaning part contacts the steel billet. At this time, under the action of the spring, the travel wheel on the plate (21) presses against the bottom end surface of the steel billet, and the lower purge gun (22) performs a purge operation on the cutting nodule on the lower edge of the steel billet. Step 4: After the flame cutting gun (17) moves to the end and the billet cutting is completed, the flame cutting gun (17), the upper purge gun (18) and the lower purge gun (22) are turned off; then the motor (14) is reversed to drive the various parts to reset, and after the flame cutting gun (17) is separated from the billet, the screw (8) is loosened and the device is removed. At this point, the operation of removing the cutting nodule during the billet cutting operation is completed.

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