Shearing device for galvanized steel sheet

Abstract

The invention provides a shearing device for a galvanized steel sheet, and relates to the technical field of steel sheet shearing, the shearing device comprises a bottom plate, shearing plates are symmetrically arranged on the bottom plate in a sliding mode, shearing wheels which are vertically separated are arranged on the sides, close to each other, of the two shearing plates, polishing mechanisms are installed on the shearing plates, and a winding mechanism and a lubricating mechanism are further arranged on the bottom plate; and the grinding mechanism drives the winding mechanism and the lubricating mechanism while grinding. According to the galvanized steel sheet shearing device, by arranging the grinding mechanism, a sheared galvanized steel sheet can be ground, burrs can be effectively removed, in addition, by arranging the winding mechanism, sheared waste can be collected, the waste does not need to be manually treated, the labor intensity of workers is greatly reduced, by arranging the lubricating mechanism, a shearing wheel can be lubricated, and the shearing efficiency is improved. And the service life of the shearing wheel is effectively prolonged, and practicability and economical efficiency are higher.

Description

Technical Field

[0001] The present invention relates to the technical field of steel plate shearing, and specifically relates to a shearing device for galvanized steel plates. Background Art

[0002] In the production process of steel, a disk shear is generally used to shear the two sides of the strip steel to meet the width requirements of users for strip steel products. The rotation direction of the disk shear is the same as that of the strip steel, and it moves in a passive transmission manner. During use, according to the preset upper and lower tool clearances and overlap amounts, the edge of the strip steel is cut off by the resultant force of the upper and lower cutting edges.

[0003] After the steel plate is sheared, burrs are likely to be generated at the edge position of the steel plate. When welding the next steel plate, the burrs are likely to affect the welding effect, and the welding quality is poor. In addition, under the long-term cold shearing state, the wear of the cutting edge is large, and the service life of the cutting edge will be greatly reduced. In addition, the waste generated by shearing will gradually extend to the ground, increasing the space occupation, and workers also need to separately process the waste, resulting in a large labor intensity for the workers. Summary of the Invention

[0004] The present invention provides a shearing device for galvanized steel plates to solve at least one of the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention discloses a shearing device for galvanized steel plates, which includes a bottom plate. Symmetrically sliding shear plates are arranged on the bottom plate. On one side of the two shear plates close to each other, upper and lower separate shear wheels are arranged. A grinding mechanism is installed on the shear plates, and a winding mechanism and a lubricating mechanism are also arranged on the bottom plate. The grinding mechanism drives the winding mechanism and the lubricating mechanism while grinding.

[0006] Preferably, a groove is opened on the bottom plate. Symmetrically left and right shear plates are slidably arranged in the groove. One end of the groove is fixedly provided with a first motor. The output end of the first motor is fixedly connected with a bidirectional threaded rod. The bidirectional threaded rod is rotatably connected to the groove. The shear plates are symmetrically threadedly installed on the bidirectional threaded rod.

[0007] Preferably, there are two grinding mechanisms, which are respectively arranged on the shear plates. The grinding mechanism includes a fixing plate fixedly arranged on the shear plate. A second motor is fixedly arranged on the fixing plate. A rotating rod is fixedly arranged on the output end of the second motor. A square plate is also fixedly arranged on the shear plate. The rotating rod rotatably passes through the square plate. A moving rod is slidably arranged on the rotating rod. A grinding disc is fixedly arranged on the moving rod.

[0008] Preferably, a square groove is formed in the rotating rod, a first spring is fixedly arranged in the square groove, the other end of the first spring is fixedly connected with a square rod, the square rod is slidably connected with the square groove, the other end of the square rod is fixedly connected with a moving rod, obliquely arranged sleeves are symmetrically arranged on the moving rod, a second spring is fixedly arranged in the sleeve, the other end of the second spring is fixedly connected with an extending rod, the extending rod slidably extends out of the sleeve, a universal wheel is arranged at the other end of the extending rod, and the universal wheel abuts against the square plate; a fixing ring is rotatably connected to the moving rod, L-shaped connecting rods I are symmetrically and fixedly arranged on the fixing ring, and polishing blocks are fixedly arranged on the L-shaped connecting rods I.

[0009] Preferably, the lubricating mechanism comprises an oil tank fixedly arranged on the bottom plate, a partition plate is arranged in the oil tank, rotatable rods are symmetrically arranged on the left and right sides of the oil tank, the rotatable rods rotatably extend into the oil tank, a plurality of stirring rods are fixedly arranged on the rotatable rods, and the rotatable rods are located above the partition plate; a first belt pulley is arranged on the rotating rod, a second belt pulley is arranged on the rotatable rod, and a belt is wound around the first belt pulley and the second belt pulley.

[0010] Preferably, a sliding plate is arranged on the lower side of the partition plate, the sliding plate is slidably connected with the partition plate and the inner wall of the lower side of the oil tank, one end of the sliding plate is fixedly connected with a pushing rod, the front side of the pushing rod slidably extends out of the oil tank, a through groove is formed in the partition plate, a one-way valve is arranged in the through groove, a first oil pipe is connected to the rear side of the oil tank, a second oil pipe is connected through the first oil pipe, two oil pipes III are connected through the left and right sides of the second oil pipe, two hollow boxes are connected through the oil pipes III, openings are arranged on the sides of the upper and lower hollow boxes close to each other, oil application cotton is arranged at the openings, and the hollow boxes are fixedly connected with the shear plate.

[0011] Preferably, a cam is arranged on one of the rotatable rods, an auxiliary block is fixedly arranged on one side wall of the oil tank, one end of the auxiliary block is fixedly connected with a third spring, the other end of the third spring is fixedly connected with an L-shaped connecting rod II, the L-shaped connecting rod II abuts against the cam, and a matching rod is fixedly connected to the front side of the L-shaped connecting rod II, and the matching rod is fixedly connected with the pushing rod.

[0012] Preferably, the winding mechanism comprises a mounting block fixedly arranged on the bottom plate, moving boxes are symmetrically and slidably arranged on the left and right sides of the mounting block, a moving plate is slidably arranged on the moving box, a motor III is fixedly arranged on the moving plate, a baffle is fixedly arranged at the output end of the motor III, the other end of the baffle is fixedly connected with a rotating shaft, a limiting plate is also fixedly arranged on the moving box, a slot is arranged on the limiting plate, and the rotating shaft is detachably connected with the slot.

[0013] Preferably, motors IV are arranged on the sides of the moving boxes away from each other, threaded rods are fixedly connected to the output ends of the motors IV, the threaded rods are rotatably connected with the moving boxes, moving blocks are threadedly connected to the threaded rods, sliding grooves are formed in the moving boxes, and the moving blocks slide upward from the sliding grooves and extend out of the moving boxes.

[0014] Preferably, a drive box is arranged inside the mounting block. The front side of the push rod slides and extends into the drive box. A trapezoidal block is fixedly arranged on the front side of the push rod. L-shaped connecting rods III are fixedly arranged on the mutually approaching sides of the moving box. A sliding groove is formed in the drive box. The L-shaped connecting rods III slide and extend into the drive box from the sliding groove. A matching block is fixedly arranged on the mutually approaching sides of the lower ends of the L-shaped connecting rods III. The matching block is matched with the trapezoidal block.

[0015] Compared with the prior art, the present invention provides a shearing device for galvanized steel sheets. By arranging a grinding mechanism, the galvanized steel sheets after shearing can be ground, and burrs can be effectively removed, thereby ensuring the welding effect. In addition, by arranging a winding mechanism, the waste materials sheared off can be collected, and there is no need for manual treatment of the waste materials, greatly reducing the labor intensity of workers. And by arranging a lubricating mechanism, the shearing wheel can be lubricated with oil, reducing the wear of the shearing wheel and effectively prolonging the service life of the shearing wheel, with stronger practicability and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is the Figure 1 partial structural top view of the present invention;

[0019] Figure 3 is a schematic structural diagram of the grinding mechanism of the present invention;

[0020] Figure 4 is a schematic internal structural diagram of the fuel tank of the present invention;

[0021] Figure 5 is the Figure 4 partial structural side view of the present invention;

[0022] Figure 6 is a side view of the fuel tank of the present invention;

[0023] Figure 7 is a schematic structural diagram of the winding mechanism of the present invention;

[0024] Figure 8 is a top view of the drive box of the present invention;

[0025] Figure 9 is an installation schematic diagram of the hollow box of the present invention;

[0026] Figure 10 is an installation schematic diagram of the second oil pipe of the present invention.

[0027] In the figure: 1, bottom plate; 2, mounting block; 3, shear plate; 4, grinding mechanism; 5, shear wheel; 6, fuel tank; 7, motor 1; 8, bidirectional threaded rod; 9, fixing plate; 10, motor 2; 11, rotating rod; 12, grinding block; 13, fixing ring; 14, universal wheel; 15, square rod; 16, spring 2; 17, grinding disc; 18, moving rod; 19, sleeve; 20, extending rod; 21, square plate; 22, square groove; 23, belt; 24, rotating rod; 25, stirring rod; 26, partition plate; 27, pushing rod; 28, mating rod; 29, L-shaped connecting rod 2; 30, sliding plate; 31, drive box; 32, trapezoidal block; 33, oil pipe 1; 34, cam; 35, spring 3; 36, auxiliary block; 37, mating block; 38, L-shaped connecting rod 3; 39, motor 4; 40, limiting plate; 41, moving box; 42, baffle; 43, motor 3; 44, moving plate; 45, rotating shaft; 46, threaded rod; 47, moving block; 48, oil pipe 3; 49, hollow box; 50, oiling cotton; 51, oil pipe 2. Detailed implementation manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] Embodiment 1

[0032] An embodiment of the present invention provides a shearing device for galvanized steel sheets, as Figures 1-10 shown, which includes a bottom plate 1. Symmetrically sliding shear plates 3 are arranged on the bottom plate 1. On one side of the two shear plates 3 close to each other, upper and lower discrete shearing wheels 5 are arranged. A grinding mechanism 4 is installed on the shear plates 3. A winding mechanism and a lubricating mechanism are also arranged on the bottom plate 1. The grinding mechanism 4 drives the winding mechanism and the lubricating mechanism while grinding.

[0033] The working principle and beneficial effects of the above technical solution are as follows: Move the two shear plates 3 towards each other to an appropriate distance (this distance is determined by the width of the galvanized steel sheet and the width to be sheared). Pass the galvanized steel sheet through between the upper and lower discrete shearing wheels 5. The grinding mechanism 4 will grind the edge position of the sheared galvanized steel sheet. The winding mechanism will wind up the waste material sheared off, and the lubricating mechanism will apply oil to the shearing wheels 5. By setting the grinding mechanism 4, the sheared galvanized steel sheet can be ground, effectively removing burrs, thereby ensuring the welding effect. In addition, by setting the winding mechanism, the waste material sheared off can be collected, eliminating the need for manual handling of the waste material, greatly reducing the labor intensity of workers. And by setting the lubricating mechanism, the shearing wheels 5 can be lubricated with oil, reducing the wear of the shearing wheels and effectively extending the service life of the shearing wheels 5, with stronger practicability and economy.

[0034] Embodiment 2

[0035] Based on the above Embodiment 1, as Figures 1-2 shown, a groove is provided on the bottom plate 1. Symmetrically sliding shear plates 3 are arranged in the groove. One end of the groove is fixedly provided with a first motor 7. The output end of the first motor 7 is fixedly connected with a bidirectional threaded rod 8. The bidirectional threaded rod 8 is rotatably connected to the groove. The shear plates 3 are symmetrically threadedly installed on the bidirectional threaded rod 8.

[0036] The working principle and beneficial effects of the above technical solution are as follows: Start the first motor 7. The first motor 7 drives the bidirectional threaded rod 8 to rotate. The bidirectional threaded rod 8 drives the two shear plates 3 to move towards or away from each other, which can adjust the shearing width, with stronger adaptability, simple structure, convenient use, and strong practicability.

[0037] Embodiment 3

[0038] Based on the above Embodiments 1-2, as Figures 1-3As shown in the figure, there are two grinding mechanisms 4, which are respectively arranged on the shear plate 3. The grinding mechanism 4 includes a fixed plate 9, which is fixedly arranged on the shear plate 3. A second motor 10 is fixedly arranged on the fixed plate 9. A rotating rod 11 is fixedly arranged on the output end of the second motor 10. A square plate 21 is also fixedly arranged on the shear plate 3. The rotating rod 11 rotates through the square plate 21. A moving rod 18 is slidably arranged on the rotating rod 11. A grinding disc 17 is fixedly arranged on the moving rod 18.

[0039] Among them, preferably, a square groove 22 is formed on the rotating rod 11. A first spring is fixedly arranged in the square groove 22. The other end of the first spring is fixedly connected to a square rod 15. The square rod 15 is slidably connected to the square groove 22. The other end of the square rod 15 is fixedly connected to the moving rod 18. Obliquely arranged sleeves 19 are symmetrically arranged on the moving rod 18. A second spring 16 is fixedly arranged in the sleeve 19. The other end of the second spring 16 is fixedly connected to an extending rod 20. The extending rod 20 slidably extends out of the sleeve 19. The other end of the extending rod 20 is provided with a universal wheel 14, which abuts against the square plate 21; A fixing ring 13 is rotatably connected to the moving rod 18. L-shaped connecting rods I are symmetrically and fixedly arranged on the fixing ring 13. Grinding blocks 12 are fixedly arranged on the L-shaped connecting rods I.

[0040] Among them, a tensiometer is arranged in the square groove 22. The square rod 15 is connected to the tensiometer, so as to obtain the tensile force value, and then change the rotation speed of the second motor 10, so as to control the pressure of the grinding disc 17 on the galvanized steel plate;

[0041] The working principle and beneficial effects of the above technical solution are as follows: After the shearing starts, the second motor 10 is started synchronously. The second motor 10 drives the rotating rod 11 to rotate. The rotating rod 11 drives the square rod 15 to rotate. The square rod 15 drives the moving rod 18 to rotate. The moving rod 18 drives the grinding disc 17 to rotate, so as to grind the edge of the sheared galvanized steel plate, so as to remove burrs. During the rotation of the moving rod 18, the extending rod 20 continuously extends under the action of centrifugal force. Since the square plate 21 is fixed, the square rod 15 will drive the moving rod 18 to move away from the second motor 10, so as to change the position of the grinding disc 17, and then change the pressure of the grinding disc 17 on the edge of the galvanized steel plate. In addition, when the moving rod 18 moves, the moving rod 18 drives the fixing ring 13 to move. The fixing ring 13 drives the L-shaped connecting rod I and the grinding block 12 to move, which also has the effect of grinding. The above structure is simple and can adjust the grinding pressure, so as to make the grinding effect better and the welding quality higher.

[0042] Embodiment 4

[0043] On the basis of the above Embodiment 3, as Figure 1 、 Figure 4As shown in the figure, the lubrication mechanism includes an oil tank 6, which is fixedly arranged on the bottom plate 1. A partition plate 26 is arranged inside the oil tank 6. Symmetrically arranged rotating rods 24 are provided on the oil tank 6. The rotating rods 24 rotate and extend into the oil tank 6. A number of stirring rods 25 are fixedly arranged on the rotating rods 24. The rotating rods 24 are located above the partition plate 26. A first pulley is arranged on the rotating rod 11, a second pulley is arranged on the rotating rod 24, and a belt 23 is wound around the first pulley and the second pulley.

[0044] The working principle and beneficial effects of the above technical solution are as follows: When the rotating rod 11 rotates, the rotating rod 11 drives the rotating rod 24 to rotate through the first pulley, the second pulley and the belt 23. The rotating rod 24 drives a number of stirring rods 25 to rotate. The number of stirring rods 25 stirs the oil in the oil tank 6, which can effectively reduce the possibility of oil solidification. The structure is simple, the cooperation degree is high, and the practicability is strong.

[0045] Embodiment 5

[0046] On the basis of the above Embodiment 4, as Figures 4-6 , Figures 9-10 shown in the figure, a sliding plate 30 is arranged on the lower side of the partition plate 26. The sliding plate 30 is slidably connected to the partition plate 26 and the inner wall of the lower side of the oil tank 6. One end of the sliding plate 30 is fixedly connected to a push rod 27. The front side of the push rod 27 slides and extends out of the oil tank 6. A through groove is opened on the partition plate 26, and a one-way valve is arranged in the through groove. A first oil pipe 33 is connected to the rear side of the oil tank 6. A second oil pipe 51 is connected through the first oil pipe 33. The left and right sides of the second oil pipe 51 are connected through third oil pipes 48. Two hollow boxes 49 are connected through the third oil pipes 48. An opening is arranged on the side where the upper and lower hollow boxes 49 are close to each other. An oil coating cotton 50 is arranged at the opening. The hollow box 49 is fixedly connected to the shear plate 3.

[0047] Among them, a one-way valve is also arranged in the first oil pipe 33.

[0048] Among them, preferably, a cam 34 is arranged on one of the rotating rods 24. An auxiliary block 36 is fixedly arranged on one side wall of the oil tank 6. One end of the auxiliary block 36 is fixedly provided with a third spring 35. The other end of the third spring 35 is fixedly connected to an L-shaped connecting rod 29. The L-shaped connecting rod 29 abuts against the cam 34. A matching rod 28 is fixedly connected to the front side of the L-shaped connecting rod 29. The matching rod 28 is fixedly connected to the push rod 27.

[0049] The working principle and beneficial effects of the above technical solution are as follows: When one of the rotating rods 24 rotates, the cam 34 rotates together. The cam 34 and the driving spring three 35 cause the L-shaped connecting rod two 29 to move back and forth continuously. The L-shaped connecting rod two 29 drives the mating rod 28 and the push rod 27 to move back and forth. The push rod 27 drives the sliding plate 30 to move back and forth. When the sliding plate 30 moves forward, the oil liquid on the partition plate 26 will enter below the partition plate 26. When the sliding plate 30 moves backward, the oil liquid below the partition plate 26 will enter the hollow box 49 through the first oil pipe 33, the second oil pipe 51, and the third oil pipe 48, and then will moisten the oil-coated cotton 50, thereby lubricating the shearing wheel 5 with oil, so that the shearing wheel 5 is in a lubricated state for a long time (but the amount of oil liquid input into the oil-coated cotton 50 each time is small, only need to ensure the moistness of the oil-coated cotton 50). Through the driving method of the cam 34, the transportation work of the oil liquid can be effectively completed, and then the oiling and lubrication can be completed, which can effectively extend the service life of the shearing wheel 5 and has stronger practicability.

[0050] Embodiment 6

[0051] On the basis of the above Embodiment 5, as Figures 4-8 shown, the winding mechanism includes a mounting block 2, the mounting block 2 is fixedly arranged on the bottom plate 1, moving boxes 41 are symmetrically arranged on the left and right sides of the mounting block 2 in a sliding manner, a moving plate 44 is arranged on the moving box 41 in a sliding manner, a motor three 43 is fixedly arranged on the moving plate 44, a baffle 42 is fixedly arranged on the output end of the motor three 43, the other end of the baffle 42 is fixedly connected to a rotating shaft 45, a limiting plate 40 is also fixedly arranged on the moving box 41, a slot is arranged on the limiting plate 40, and the rotating shaft 45 is detachably connected to the slot.

[0052] Among them, preferably, motors four 39 are arranged on the mutually remote sides of the moving boxes 41, a threaded rod 46 is fixedly connected to the output end of the motor four 39, the threaded rod 46 is rotatably connected to the moving box 41, a moving block 47 is threadedly connected to the threaded rod 46, a sliding slot is formed on the moving box 41, and the moving block 47 slides upward from the sliding slot and extends out of the moving box 41.

[0053] Among them, preferably, a driving box 31 is arranged inside the mounting block 2, the front side of the push rod 27 slides and extends into the driving box 31, a trapezoidal block 32 is fixedly arranged on the front side of the push rod 27, L-shaped connecting rods three 38 are fixedly arranged on the mutually close sides of the moving boxes 41, a sliding slot is formed on the driving box 31, the L-shaped connecting rods three 38 slide and extend into the driving box 31 from the sliding slot, and a mating block 37 is fixedly arranged on the mutually close sides of the lower ends of the L-shaped connecting rods three 38, and the mating block 37 is matched with the trapezoidal block 32.

[0054] Among them, a return spring is arranged on the mutually remote sides of the L-shaped connecting rods three 38, and the other end of the return spring is fixedly connected to the inner wall of the driving box 31.

[0055] The working principle and beneficial effects of the above technical solution are as follows: First, start the fourth motor 39. The fourth motor 39 drives the threaded rod 46 to rotate. The threaded rod 46 drives the moving block 47 to move. The moving block 47 drives the moving plate 44 to move. The moving plate 44 drives the rotating shaft 45, the baffle 42 and the third motor 43 to move. After the rotating shaft 45 is inserted into the slot (the rotating shaft 45 and the slot are detachably and rotatably connected), turn off the fourth motor 39. First, wind the cut waste material around the rotating shaft 45, and then start the third motor 43. The third motor 43 drives the baffle 42 and the rotating shaft 45 to rotate, so as to collect the waste material (the rotation speed of the third motor 43 should be adapted to the speed at which the waste material is cut, that is, the rotation speed of the third motor 43 should be the same as the rotation speed of the cutting wheel 5); When the push rod 27 moves back and forth, the push rod 27 drives the trapezoidal block 32 to move back and forth. The trapezoidal block 32 drives the two mating blocks 37 to move left and right, so that the two L-shaped connecting rods III 38 move towards or away from each other, that is, the position where the waste material is wound around the rotating shaft 45 will change, so as to achieve the purpose of evenly winding the waste material. After winding for a period of time, or after cutting a roll of galvanized steel sheet, start the fourth motor 39, that is, the rotating shaft 45 leaves the mating position with the slot, and then collect the wound waste material. Through the above steps, the operations of grinding the cut galvanized steel sheet, lubricating the cutting wheel 5 and collecting the waste material can be completed. The structure has a high degree of cooperation and strong practicability.

[0056] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms.

Claims

1. A shearing device for galvanized steel sheet, characterized in that: The invention comprises a bottom plate (1), on which shear plates (3) are symmetrically slidably arranged, and upper and lower separate shear wheels (5) are arranged on the sides of the two shear plates (3) close to each other, and a grinding mechanism (4) is installed on the shear plates (3). A winding mechanism and a lubricating mechanism are also arranged on the bottom plate (1), and the grinding mechanism (4) drives the winding mechanism and the lubricating mechanism while grinding.

2. A shearing device for galvanized steel sheet according to claim 1, characterized in that: A groove is provided on the bottom plate (1), a left-right symmetrical shear plate (3) is slidably arranged in the groove, a motor (7) is fixedly arranged at one end of the groove, a bidirectional threaded rod (8) is fixedly connected to the output end of the motor (7), the bidirectional threaded rod (8) is rotatably connected to the groove, and the shear plate (3) is symmetrically threadedly mounted on the bidirectional threaded rod (8).

3. A shearing device for galvanized steel sheet according to claim 1, characterized in that: Two grinding mechanisms (4) are provided. The grinding mechanisms (4) are respectively provided on the shearing plate (3). The grinding mechanisms (4) include a fixed plate (9). The fixed plate (9) is fixedly provided on the shearing plate (3). A second motor (10) is fixedly provided on the fixed plate (9). A rotating rod (11) is fixedly provided on the output end of the second motor (10). A square plate (21) is also fixedly provided on the shearing plate (3). The rotating rod (11) rotates through the square plate (21). A moving rod (18) is slidably provided on the rotating rod (11). A grinding disc (17) is fixedly provided on the moving rod (18).

4. A shearing device for galvanized steel sheet according to claim 3, characterized in that: A square groove (22) is provided on the rotating rod (11), a spring 1 is fixedly arranged in the square groove (22), the other end of the spring 1 is fixedly connected to a square rod (15), the square rod (15) is slidably connected to the square groove (22), the other end of the square rod (15) is fixedly connected to a moving rod (18), a sleeve (19) arranged obliquely is symmetrically arranged on the moving rod (18), a spring 2 (16) is fixedly arranged in the sleeve (19), the other end of the spring 2 (16) is fixedly connected to an extension rod (20), the extension rod (20) slides out of the sleeve (19), a universal wheel (14) is arranged at the other end of the extension rod (20), and the universal wheel (14) is abutted against the square plate (21); a fixing ring (13) is rotatably connected to the moving rod (18), an L-shaped connecting rod 1 is symmetrically fixedly arranged on the fixing ring (13), and a grinding block (12) is fixedly arranged on the L-shaped connecting rod 1.

5. A shearing device for galvanized steel sheet according to claim 3, characterized in that: The lubricating mechanism comprises an oil tank (6), the oil tank (6) is fixedly arranged on the bottom plate (1), a partition plate (26) is arranged in the oil tank (6), a left-right symmetrical rotating rod (24) is arranged on the oil tank (6), the rotating rod (24) rotates and extends into the oil tank (6), a plurality of stirring rods (25) are fixedly arranged on the rotating rod (24), and the rotating rod (24) is located above the partition plate (26); a first pulley is arranged on the rotating rod (11), a second pulley is arranged on the rotating rod (24), and a belt (23) is wound around the first pulley and the second pulley.

6. A shearing device for galvanized steel sheet according to claim 5, characterized in that: A sliding plate (30) is provided at the lower side of the partition plate (26), and the sliding plate (30) is slidably connected to the partition plate (26) and the inner wall of the lower side of the oil tank (6). One end of the sliding plate (30) is fixedly connected to the push rod (27), and the front side of the push rod (27) slides and extends out of the oil tank (6). A through groove is provided on the partition plate (26), and a one-way valve is provided in the through groove. An oil pipe 1 (33) is connected to the rear side of the oil tank (6), and an oil pipe 2 (51) is connected to the oil pipe 1 (33). The left and right sides of the oil pipe 2 (51) are connected to the oil pipe 3 (48), and the oil pipe 3 (48) is connected to two hollow boxes (49). An opening is provided on the side of the upper and lower hollow boxes (49) close to each other, and oil-coated cotton (50) is provided at the opening. The hollow box (49) is fixedly connected to the shear plate (3).

7. A shearing device for galvanized steel sheet according to claim 6, characterized in that: A cam (34) is arranged on one of the rotating rods (24), an auxiliary block (36) is fixedly arranged on a side wall of the oil tank (6), a spring three (35) is fixedly arranged on one end of the auxiliary block (36), the other end of the spring three (35) is fixedly connected to an L-shaped connecting rod two (29), the L-shaped connecting rod two (29) is in contact with the cam (34), a matching rod (28) is fixedly connected to the front side of the L-shaped connecting rod two (29), and the matching rod (28) is fixedly connected to the push rod (27).

8. A shearing device for galvanized steel sheet according to claim 7, characterized in that: The winding mechanism comprises a mounting block (2), the mounting block (2) being fixedly arranged on a bottom plate (1), a movable box (41) being slidably arranged on the mounting block (2), a movable plate (44) being slidably arranged on the movable box (41), a motor three (43) being fixedly arranged on the movable plate (44), a baffle plate (42) being fixedly arranged on the output end of the motor three (43), the other end of the baffle plate (42) being fixedly connected to a rotating shaft (45), a limit plate (40) being fixedly arranged on the movable box (41), a slot being arranged on the limit plate (40), and the rotating shaft (45) being detachably connected to the slot.

9. A shearing device for galvanized steel sheet according to claim 8, characterized in that: A motor four (39) is arranged on the side of the moving box (41) that is away from each other. A threaded rod (46) is fixedly connected to the output end of the motor four (39). The threaded rod (46) is rotatably connected to the moving box (41). A moving block (47) is threadedly connected to the threaded rod (46). A sliding groove is provided on the moving box (41). The moving block (47) slides upward from the sliding groove and extends out of the moving box (41).

10. A shearing device for galvanized steel sheet according to claim 9, characterized in that: A driving box (31) is arranged in the mounting block (2), the front side of the push rod (27) slides and extends into the driving box (31), a trapezoidal block (32) is fixedly arranged on the front side of the push rod (27), L-shaped connecting rods (38) are fixedly arranged on the sides of the moving boxes (41) close to each other, a sliding groove is opened on the driving box (31), the L-shaped connecting rods (38) slide from the sliding groove and extend into the driving box (31), and a matching block (37) is fixedly arranged on the sides of the lower ends of the L-shaped connecting rods (38) close to each other, and the matching block (37) matches with the trapezoidal block (32).

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