A metal plate edge flying shear device with flat section function

Abstract

This invention discloses a metal sheet edge-flying shear device with a flat cutting surface function, belonging to the field of shearing equipment technology. It includes a body, roller, drum, rotating cylinder, cylindrical part, drive rod, connecting part, shear blades, and locking unit; a telescopic unit is used to move the drive rod outwards from the drum when the locking unit restricts the rotation of the rotating cylinder, thereby bringing the two shear blades closer together. In use, the rotating cylinder is restricted from rotating by the locking unit, and the telescopic unit drives the two shear blades to move closer together, enabling them to shear the metal sheet. During the shearing process, the rotating cylinder stops rotating, while the drum rotates, allowing the shear blades to maintain a parallel state for a longer period. During this parallel state, the telescopic unit drives the shear blades to move closer together, ensuring the shear blades shear the metal sheet and preventing poor cut quality due to excessively fast shearing speed.

Description

Technical Field

[0001] This invention relates to the field of shearing equipment technology, and specifically to a flying shear device for the edge of metal sheets with a flat cutting surface function. Background Technology

[0002] Drum-type flying shears are used at the exit of various continuous cold rolling mills for strip and plate to achieve dynamic coiling. During the shearing process, the upper and lower drums of the flying shear rotate in a circular motion, and the shear blades installed inside the drums rotate with the drums to perform a shearing motion, cutting the strip steel. The flying shear can automatically or manually adjust the shear blade side gap through an adjustment device to adapt to the shearing needs of strip steel of different specifications.

[0003] In existing technology, when using a roller-type flying shear to cut metal sheets, the shear blades on the two rollers move relatively close to each other. When the two shear blades rotate to a parallel state, they exert a shearing force on the metal sheet, allowing the edge of the metal sheet to be cut off. However, because the two shear blades quickly rotate to a non-parallel state after reaching a parallel state, or in other words, the time the two shear blades maintain a parallel state is short, the shearing force on the metal sheet is large only when the two shear blades are parallel. Due to the short duration of this state, the shearing speed must be high, making it difficult to guarantee the quality of the cut surface. When the blades are non-parallel, the direction of the shearing force is inclined to the surface of the metal sheet, which can easily cause the cut surface of the metal sheet to be slanted, resulting in an uneven cut surface and affecting the appearance quality of the cut surface of the metal sheet. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed. Therefore, the purpose of the present invention is to provide a metal sheet edge flying shear device with a flat cutting surface function, which solves the problem that the cutting blade of the existing roller flying shear device maintains a parallel state for a short time, making it difficult to guarantee the cutting surface quality of the metal sheet.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a metal sheet edge-flying shear device with a flattening cutting function, comprising a body mounted on a base, wherein the body is rotatably connected to two rollers, and further comprising:

[0006] The roller has two rollers, which are coaxially connected to the two roller shafts respectively. The roller is hollow inside and is coaxially rotatably connected to a rotating cylinder. A cylindrical part is fixed to the inner wall of the rotating cylinder.

[0007] A drive rod is slidably inserted through the cylindrical part, the drive rod slidably extends out of the rotating cylinder, and a connecting part is fixedly connected to one end of the drive rod extending out of the rotating cylinder. The connecting part is connected to a shear blade, and the roller has an open clearance groove for the connecting part to pass freely.

[0008] A locking unit is provided on the machine body and is used to restrict the rotation of the rotating cylinder when the two shear blades are in a parallel state;

[0009] A telescopic unit is provided on the cylindrical part and is used to move the drive rod toward the outside of the drum when the locking unit restricts the rotation of the rotating drum, thereby bringing the two shear blades closer to each other.

[0010] As a preferred embodiment of the metal sheet edge flying shear device with cutting surface flattening function described in this invention, wherein: each end of the peripheral periphery of the rotating cylinder is coaxially fixed with an annular flange, the inner wall of the cylinder is coaxially fixed with an annular guide rail, and the annular flange is coaxially slidably engaged with the annular guide rail.

[0011] As a preferred embodiment of the metal sheet edge flying shear device with cutting surface flattening function described in this invention, the locking unit includes two cylinder brackets installed on the machine body, each of the two cylinder brackets is vertically mounted with a cylinder, the cylinder is driven and connected to a positioning pin, the roller is provided with a through groove for the positioning pin to pass freely, the rotating cylinder wall is fixedly connected to a positioning block, and the positioning block is provided with a positioning groove for the positioning pin to be inserted.

[0012] As a preferred embodiment of the metal sheet edge flying shear device with cutting surface flattening function described in this invention, the telescopic unit includes a fixed shaft coaxially fixed to the inner wall of the drum, a cam block is fixedly mounted on the fixed shaft, a ball is rotatably embedded at one end of the drive rod facing the fixed shaft, the ball cooperates with the cam block, and an elastic reset component is provided in the cylindrical part, the elastic reset component imparts potential energy to the drive rod to move in the direction of the fixed shaft.

[0013] As a preferred embodiment of the metal sheet edge flying shear device with cutting surface flattening function described in this invention, the elastic reset component includes a limiting ring fixedly fitted around the periphery of the drive rod, the cylindrical part has a blind hole for the limiting ring to pass freely, a spring is installed in the blind hole, and the two ends of the spring elastically abut against the limiting ring and the bottom wall of the blind hole respectively.

[0014] As a preferred embodiment of the metal sheet edge flying shear device with cutting surface flattening function described in this invention, wherein: a spiral spring is fixedly wound around each of the two axial ends of the rotating cylinder, the inner end of the spiral spring is fixed to the periphery of the rotating cylinder, and the outer end is fixed to the inner wall of the cylinder cavity.

[0015] As a preferred embodiment of the metal sheet edge flying shear device with cutting surface flattening function described in this invention, the base is connected to a support seat, and the support seat is rotatably connected to two end caps, which are coaxially connected to the ends of two rollers away from the roller shaft.

[0016] As a preferred embodiment of the metal sheet edge flying shear device with cutting surface flattening function described in this invention, the connecting part is provided with a notch-shaped sliding cavity, an installation part is slidably connected in the sliding cavity, the shear blade is fixed to the wall of the installation part, and the connecting part is provided with a translation unit for driving the installation part to move horizontally.

[0017] As a preferred embodiment of the metal sheet edge flying shear device with cutting surface flattening function described in this invention, wherein: the connecting part is fixedly provided with a plurality of guide parts, and the mounting part is provided with a sliding hole for the guide parts to slide and engage.

[0018] As a preferred embodiment of the metal sheet edge flying shear device with cutting surface flattening function described in this invention, the translation unit includes a fixing pin that is coaxially slidably inserted into a receiving cavity opened in the drive rod. A first connecting pin is fixedly connected to one end of the fixing pin facing the inner side of the roller. One end of the first connecting pin is fixedly inserted into the cylindrical part through the drive rod. The drive rod has a strip-shaped hole for the first connecting pin to pass freely. A second connecting pin is fixedly connected to the other end of the fixing pin. The mounting part has an oblong hole for the second connecting pin to be inserted. The length direction of the oblong hole is at an angle to the axial direction of the drive rod.

[0019] In summary, the present invention has at least one of the following beneficial effects:

[0020] 1. This invention restricts the rotation of the rotating cylinder by a locking unit, and then drives the two shear blades to move closer to each other by a telescopic unit, thereby enabling the two shear blades to cut the metal sheet. During the cutting process, the rotating cylinder stops rotating, while the roller rotates, so that the shear blades can maintain a parallel state for a longer period of time. During the parallel state, the telescopic unit drives the shear blades to move closer to each other, thereby enabling the shear blades to cut the metal sheet and avoiding poor cut quality due to high shear speed.

[0021] 2. In this invention, the rotation of the drum causes the fixed shaft to rotate synchronously. The cam block will roll into contact with the ball bearings, thereby causing the cam block to drive the drive rod to move outward in the direction of the drum. The drive rod then drives the connecting part to move outward in the direction of the drum. As the drum rotates, the two shear blades move closer to each other when they are in a parallel state, so as to completely shear the metal sheet.

[0022] 3. In this invention, by setting up a translation unit, the two shear blades can move horizontally in the direction of metal sheet conveying as the metal sheet is conveyed during the shearing process, thereby enabling the shear blades to cut the edge of the metal sheet without stopping the conveying movement of the metal sheet during shearing. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a three-dimensional structural diagram of a metal sheet edge flying shear device with a flattening function according to the present invention;

[0025] Figure 2 for Figure 1 Another perspective on the positional relationship;

[0026] Figure 3 This is a schematic diagram showing the positional relationship of the roller, cylinder, and end cap after assembly in this invention.

[0027] Figure 4 for Figure 3 A schematic diagram showing the positional relationship of the middle section after it has been cut open;

[0028] Figure 5 for Figure 4 Enlarged schematic diagram of the local structure at point A:

[0029] Figure 6 for Figure 3 Another perspective on the positional relationship:

[0030] Figure 7 This is a schematic diagram showing the positional relationship between the rotating cylinder, the connecting part, and the shear blade after assembly in this invention:

[0031] Figure 8 for Figure 7 A schematic diagram showing the positional relationship of the middle section after it has been cut open;

[0032] Figure 9 for Figure 8 Enlarged schematic diagram of the local structure at point B;

[0033] Figure 10 for Figure 7 A diagram illustrating the positional relationship from another perspective;

[0034] Figure 11 for Figure 10 A schematic diagram showing the positional relationship of the middle section after it has been cut open;

[0035] Figure 12 This is a schematic diagram showing the positional relationship between the mounting part and the shear blade after assembly in this invention:

[0036] Figure 13 This is a schematic cross-sectional view of the rotating cylinder structure in this invention:

[0037] Figure 14 This is a schematic diagram showing the positional relationship of the drive rod, connecting part, and ball bearings after assembly in this invention:

[0038] Figure 15 This is a schematic diagram of the structure of the roller in this invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Base; 2. Machine body; 3. Roller shaft; 4. Cylinder; 5. Drum; 6. End cover; 7. Support seat; 8. Positioning pin; 9. Shear blade; 10. Connecting part; 11. Rotating cylinder; 12. Scroll spring; 13. Fixed shaft; 14. Cam block; 15. Ball bearing; 16. Limiting ring; 17. First connecting pin; 18. Strip hole; 19. Guide part; 20. Drive rod; 21. Spring; 22. Columnar part; 23. Positioning block; 24. Fixed pin; 25. Second connecting pin; 26. Mounting part; 27. Annular flange; 28. Waist-shaped hole; 29. ​​Sliding cavity; 30. Annular guide rail; 31. Clear groove; 32. Through groove. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] This invention discloses a metal sheet edge-flying shear device with a flattening cutting surface function.

[0043] Example 1

[0044] Reference Figure 1-15This invention provides a metal sheet edge-flying shear device with a flattening cutting function. The device includes a body 2 mounted on a base 1. Two rollers 3 are rotatably connected to the body 2, and the body 2 can drive the two rollers 3 to rotate synchronously in opposite directions. Each of the two rollers 3 has a roller 5 coaxially connected to its end furthest from the body 2. A conveying system for transporting metal sheets is mounted on the base 1. The conveying system transports the metal sheets between the two rollers 5. Each roller 5 is hollow inside and coaxially rotatably connected to a rotating cylinder 11. Specifically, the periphery of the rotating cylinder 11... An annular flange 27 is coaxially fixed at both ends. An annular guide rail 30 is coaxially fixed to the inner wall of the drum 5. The annular flange 27 is coaxially slidably engaged with the annular guide rail 30. By engaging the annular flange 27 in the defective part of the annular guide rail 30, the rotating drum 11 can rotate inside the drum 5. That is, the rotating drum 11 is rotatably connected to the inside of the drum 5. The base 1 is connected to a support seat 7. The support seat 7 is rotatably connected to two end caps 6. The two end caps 6 are coaxially connected to the ends of the two drums 5 away from the roller shaft 3 by mounting bearings. The end caps 6 are provided to support the drum 5 so that the drum 5 remains stable during shearing.

[0045] A cylindrical part 22 is fixedly connected to the inner wall of the rotating cylinder 11. A drive rod 20 is slidably passed through the cylindrical part 22. The drive rod 20 slidably passes through the rotating cylinder 11, and a connecting part 10 is fixedly connected to one end of the drive rod 20 that passes through the rotating cylinder 11. A notch-shaped sliding cavity 29 is opened on one side wall of the connecting part 10 facing the outer side of the roller 5. An installation part 26 is slidably connected in the sliding cavity 29. Specifically, a plurality of guide parts 19 are fixedly passed through the connecting part 10. The installation part 26 has a sliding hole for the guide parts 19 to slide into. The guide parts 19 slide in the sliding hole, so that the installation part 26 can slide in the sliding cavity 29. A shear blade 9 is fixedly connected to one side wall of the installation part 26 facing the outer side of the roller 5. The roller 5 has a clearance groove 31 for the connecting part 10 to pass freely.

[0046] Two cylinder supports are installed sequentially from top to bottom on the surface of the machine body 2. Each cylinder support has a cylinder 4 vertically mounted on it. The cylinder 4 is driven by a positioning pin 8. The roller 5 has a through groove 32 for the positioning pin 8 to pass freely. A positioning block 23 is fixedly connected to the wall of the rotating cylinder 11. The positioning block 23 has a positioning groove for the positioning pin 8 to be inserted. When the cylinder rod of the cylinder 4 extends, it drives the positioning pin 8 to move towards the roller 5, so that the positioning pin 8 passes through the through groove 32 and is inserted into the positioning groove, thereby limiting the positioning block 23 and allowing the rotating cylinder 11 to remain stationary. A fixed shaft 13 is coaxially fixed to the inner wall of the roller 5. A cam block 14 is fixedly mounted on the fixed shaft 13. A ball bearing 15 is rotatably embedded in the end of the drive rod 20 facing the fixed shaft 13. The ball bearing 15 works in conjunction with the cam block 14. When the roller 5 rotates, it drives the fixed shaft 13 synchronously. When the fixed shaft 13 rotates, the cam block 14 will also rotate synchronously. The ball 15 rolls on the surface of the cam block 14. When the ball 15 rolls to the protruding part of the cam block 14, the cam block 14 will exert a squeezing force on the ball 15, causing the ball 15 to drive the drive rod 20 to move towards the outside of the roller 5, thereby causing the drive rod 20 to drive the connecting part 10 to move. In addition, the drive rod 20 is fixedly fitted with a limit ring 16 around its periphery. The cylindrical part 22 has a blind hole for the limit ring 16 to pass through freely. A spring 21 is installed in the blind hole. The two ends of the spring 21 elastically abut against the limit ring 16 and the bottom wall of the blind hole, respectively. The spring 21 has an elastic abutting force on the limit ring 16 towards the fixed shaft 13. Therefore, when the drive rod 20 moves towards the outside of the roller 5, the limit ring 16 will compress the spring 21, thereby causing the spring 21 to accumulate elastic potential energy.

[0047] A spiral spring 12 is fixedly wound around each of the two axial ends of the rotating cylinder 11. The inner end of the spiral spring 12 is fixed to the periphery of the rotating cylinder 11, and the outer end is fixed to the inner wall of the roller 5. When the positioning pin 8 is inserted into the positioning groove, the rotating cylinder 11 will stop rotating. Since the roller 5 is still rotating, the spiral spring 12 will begin to contract and accumulate elastic potential energy. Then, when the positioning pin 8 is disengaged from the positioning groove, the elastic potential energy accumulated by the spiral spring 12 is released, which will drive the rotating cylinder 11 to rotate. The roller 5 will rotate synchronously with the rotating cylinder 11. A receiving cavity is provided in the drive rod 20. A fixing pin 24 is slidably inserted into the receiving cavity on the same axis. The fixing pin 24 faces the roller. One end of the inner side of the roller 5 is fixedly connected to a first connecting pin 17. The first connecting pin 17 passes through one end of the drive rod 20 and is fixedly installed in the cylindrical part 22. The drive rod 20 has a strip hole 18 for the first connecting pin 17 to pass freely. The other end of the fixing pin 24 is fixedly connected to a second connecting pin 25. The mounting part 26 has an oblong hole 28 for the second connecting pin 25 to be inserted. The length direction of the oblong hole 28 is at an angle to the axial direction of the drive rod 20. When the drive rod 20 moves towards the outside of the roller 5 and drives the connecting part 10 to move, the second connecting pin 25 will slide in the oblong hole 28, causing the mounting part 26 to move horizontally, so that the shear blade 9 moves slightly in the direction of conveying the metal sheet.

[0048] The working principle of this embodiment is as follows: The conveying system transports the metal sheet between the two rollers 5. The machine body 2 drives the roller shaft 3 to rotate, causing the two rollers 5 to rotate synchronously in opposite directions at a constant low speed. This causes the two shear blades 9 to rotate to a near-parallel state. At this time, the external control cabinet controls the cylinder 4 to start. The cylinder rod of the cylinder 4 extends and drives the positioning pin 8 to move towards the roller 5, so that the positioning pin 8 passes through the through groove 32 and inserts into the positioning groove of the positioning block 23. This causes the rotating cylinder 11 to stop rotating, while the roller 5 continues to rotate, thereby causing the fixed shaft 13 and the roller to... The cylinder 5 continues to rotate, causing the cam block 14 to roll into contact with the ball 15. The protruding part of the cam block 14 contacts the ball 15 and exerts a squeezing force on the ball 15. Under the action of the squeezing force, the drive rod 20 will move towards the outside of the cylinder 5 (or away from the fixed shaft 13), thereby driving the connecting part 10, the mounting part 26 and the shear blade 9 to move towards the outside of the cylinder 5, and causing the shear blade 9 to cut the metal sheet. During the movement of the drive rod 20, the cylinder 5 rotates while the rotating cylinder 11 remains stationary, and the connecting part 10 will rotate within the clearance groove 31.

[0049] When the drive rod 20 moves outward toward the roller 5, it causes the drive rod 20 and the fixing pin 24 to move relative to each other, which in turn causes the mounting part 26 and the fixing pin 24 to move relative to each other. When the mounting part 26 moves outward toward the roller 5, it causes the second connecting pin 25 to slide in the oblong hole 28. Through the relative sliding between the second connecting pin 25 and the inner wall of the oblong hole 28, the second connecting pin 25 can drive the shear blade 9 to move. The direction of movement of the shear blade 9 is consistent with the conveying direction of the metal sheet. In addition, the horizontal movement speed of the shear blade 9 is consistent with the conveying speed of the metal sheet. This allows the shear blade 9 to move horizontally synchronously with the metal sheet during the shearing process. During the horizontal movement, the shear blade 9 is continuously squeezed by the drive rod 20, which allows the shear blade 9 to completely shear the metal sheet. Compared with the equipment in the prior art, the parallel state of the shear blade 9 is maintained for a longer period of time, thereby ensuring the shearing of the metal sheet by the shear blade 9.

[0050] After shearing is completed, the external control cabinet controls the cylinder 4 to start again, causing the cylinder rod of the cylinder 4 to shorten and drive the positioning pin 8 to move away from the roller 5. At this time, the elastic potential energy stored in the spiral spring 12 is released, causing the rotating cylinder 11 to rotate and remain relatively stationary with the roller 5. During the rotation of the rotating cylinder 11, the squeezing force of the cam block 14 protrusion on the ball 15 disappears, and then the elastic potential energy of the spring 21 is released, causing the drive rod 20, the connecting part 10, the mounting part 26 and the shear blade 9 to move quickly in the direction of retracting into the roller 5. This allows the shear blade 9 to move away from the metal sheet after shearing.

[0051] Alternatively, stiffening plates can be provided on the inner wall of the rotating cylinder 11, and the fixed shaft 13 can slide through the stiffening plates to support and reinforce the fixed shaft 13, thereby preventing the fixed shaft 13 from bending and deforming.

[0052] In another embodiment, the fixed shaft 13 and cam block 14 can be replaced with a push rod or a cylinder, which drives the drive rod 20 to move. However, since the cylinder or push rod requires supporting equipment to provide power, such as air pipes to connect the cylinder to the compressor or solenoid valve, the rotation of the roller 5 and the rotating drum 11 will drive the cylinder to rotate, which will cause the air pipes to get tangled. Therefore, additional supporting equipment or devices are required to prevent the air pipes from getting tangled and knotted, which leads to a complex structure and increased cost. Therefore, using the fixed shaft 13 and cam block 14 to drive the drive rod 20 to move eliminates the need for additional supporting equipment or devices and makes the operation more convenient.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A metal sheet edge-flying shear device with a flattening function, comprising a body (2) mounted on a base (1), wherein the body (2) is rotatably connected to two rollers (3), characterized in that, Also includes: The roller (5) has two rollers that are coaxially connected to the two roller shafts (3). The roller (5) is hollow inside and is coaxially rotatably connected to a rotating cylinder (11). A cylindrical part (22) is fixed to the inner wall of the rotating cylinder (11). A drive rod (20) is slidably inserted into the cylindrical part (22). The drive rod (20) slidably extends out of the rotating cylinder (11), and a connecting part (10) is fixedly connected to one end of the drive rod (20) extending out of the rotating cylinder (11). A shear blade (9) is connected to the connecting part (10). The roller (5) has an open groove (31) for the connecting part (10) to pass freely. A locking unit is provided on the body (2) and is used to restrict the rotation of the rotating cylinder (11) when the two shear blades (9) are in a parallel state; The telescopic unit is provided on the cylindrical part (22) and is used to move the drive rod (20) toward the outside of the roller (5) when the locking unit restricts the rotation of the rotating cylinder (11), thereby bringing the two shear blades (9) closer to each other.

2. The metal sheet edge-flying shear device with cutting surface flattening function according to claim 1, characterized in that, The rotating cylinder (11) has an annular flange (27) fixedly connected to each end of its periphery on the same axis. The inner wall of the drum (5) is fixedly connected to an annular guide rail (30) on the same axis. The annular flange (27) is slidably engaged with the annular guide rail (30) on the same axis.

3. The metal sheet edge-flying shear device with cutting surface flattening function according to claim 1, characterized in that, The locking unit includes two cylinder brackets installed on the body (2), each of the two cylinder brackets is vertically mounted with a cylinder (4), the cylinder (4) is driven and connected to a positioning pin (8), the roller (5) has a through groove (32) for the positioning pin (8) to pass freely, the rotating cylinder (11) has a positioning block (23) fixed to the wall, and the positioning block (23) has a positioning groove for the positioning pin (8) to be inserted.

4. The metal sheet edge-flying shear device with cutting surface flattening function according to claim 1, characterized in that, The telescopic unit includes a fixed shaft (13) coaxially fixed to the inner wall of the roller (5). A cam block (14) is fixedly mounted on the fixed shaft (13). A ball bearing (15) is rotatably embedded at one end of the drive rod (20) facing the fixed shaft (13). The ball bearing (15) works in conjunction with the cam block (14). An elastic reset component is provided on the cylindrical part (22). The elastic reset component gives the drive rod (20) the potential energy to move in the direction of the fixed shaft (13).

5. The metal sheet edge-flying shear device with cutting surface flattening function according to claim 4, characterized in that, The elastic reset assembly includes a limiting ring (16) fixedly fitted around the periphery of the drive rod (20). The cylindrical part (22) has a blind hole for the limiting ring (16) to pass through freely. A spring (21) is installed in the blind hole. The two ends of the spring (21) elastically abut against the limiting ring (16) and the bottom wall of the blind hole, respectively.

6. The metal sheet edge-flying shear device with cutting surface flattening function according to claim 1, characterized in that, The rotating cylinder (11) has a spiral spring (12) fixedly wound around each of its two axial ends. The inner end of the spiral spring (12) is fixed to the periphery of the rotating cylinder (11), and the outer end is fixed to the inner wall of the roller (5).

7. The metal sheet edge-flying shear device with cutting surface flattening function according to claim 1, characterized in that, The base (1) is connected to a support seat (7), and the support seat (7) is rotatably connected to two end caps (6). The two end caps (6) are coaxially connected to the ends of the two rollers (5) away from the roller shaft (3).

8. The metal sheet edge-flying shear device with cutting surface flattening function according to claim 1, characterized in that, The connecting part (10) has a notch-shaped sliding cavity (29), and the mounting part (26) is slidably connected in the sliding cavity (29). The shear blade (9) is fixed to the wall of the mounting part (26). The connecting part (10) is provided with a translation unit for driving the mounting part (26) to move horizontally.

9. The metal sheet edge-flying shear device with cutting surface flattening function according to claim 8, characterized in that, The connecting part (10) is fixedly provided with a plurality of guide parts (19), and the mounting part (26) is provided with a sliding hole for the guide parts (19) to slide into.

10. The metal sheet edge-flying shear device with cutting surface flattening function according to claim 8, characterized in that, The translation unit includes a fixing pin (24) that is coaxially slidably inserted into the receiving cavity opened by the drive rod (20). One end of the fixing pin (24) facing the inner side of the roller (5) is fixedly connected to a first connecting pin (17). One end of the first connecting pin (17) that passes through the drive rod (20) is fixedly inserted into the cylindrical part (22). The drive rod (20) has a strip hole (18) for the first connecting pin (17) to pass freely. The other end of the fixing pin (24) is fixedly connected to a second connecting pin (25). The mounting part (26) has an oblong hole (28) for the second connecting pin (25) to be inserted. The length direction of the oblong hole (28) is at an angle to the axial direction of the drive rod (20).

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