Transformer silicon steel sheet shearing device with corner and excess material recycling function

Abstract

The application discloses a transformer silicon steel sheet shearing device with edge and corner excess material recycling, and relates to the technical field of sheet shearing machines. The device comprises a conveyor, a sheet shearing machine and a recycling box. The cam drives the sliding block to reciprocate along the guide rod, drives the cutter head to lift and realize punching and shearing, and the sheared waste material falls into the recycling box. The driving sprocket on the transmission shaft drives the driven sprocket through the chain, drives the two synchronous pinwheels to drive the grooved wheels, and realizes the intermittent indexing motion of the cutter head. The pinwheel locks the grooved wheel during shearing, ensuring the stability of the blade. When the sliding block is lifted, the pinwheel drives the grooved wheel to rotate, so that the next blade can accurately enter the working position, avoiding the same blade continuously bearing impact and effectively solving the problem of temperature rise and wear. The chain drives the piston to reciprocate, extrudes the cooling airflow and blows it to the blade just separated from the working position, accelerates heat exchange, improves the cooling efficiency and does not need additional energy consumption. The application realizes the efficient recycling of the edge and corner excess material of the silicon steel sheet and significantly prolongs the service life of the blade.

Description

Technical Field

[0001] This invention relates to the field of shearing machine technology, specifically a transformer silicon steel sheet shearing device for recycling scrap materials. Background Technology

[0002] In transformer manufacturing, shearing silicon steel sheets is a crucial process, and the scrap material generated during shearing typically needs to be recycled. In existing shearing equipment, the same blade often has to withstand multiple shearing impacts during continuous operation. Due to the large amount of frictional heat generated during shearing, the blade temperature continuously accumulates and rises. The short intervals between shearing operations and insufficient natural cooling time lead to a decrease in blade material hardness, accelerated edge wear, and even annealing softening. This not only reduces shearing quality and cut smoothness but also significantly shortens blade life, requiring downtime for blade replacement, impacting production efficiency and increasing consumable costs.

[0003] If multiple blades are typically installed on the cutter head to distribute the shearing load, the blade switching mechanism often relies on an independent drive source. It is difficult to achieve precise coordination between the switching timing and the stamping action. Therefore, how to achieve precise timing coordination between blade switching and stamping action without the need for an additional power source, while effectively solving the problem of temperature rise and wear caused by continuous blade operation, is a technical direction that needs to be improved in this field. Summary of the Invention

[0004] The purpose of this invention is to provide a transformer silicon steel sheet shearing device for recycling scrap materials, so as to solve the problem of rapid wear caused by continuous heating of the shearing blade in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a transformer silicon steel sheet shearing device for recycling scrap materials, comprising a conveyor, a shearing machine, and a recycling bin, wherein the conveyor is disposed on one side of the shearing machine, and the recycling bin is disposed below the shearing machine; The shearing machine includes a frame, a power unit, and a shearing unit. The frame has an upper platform and a lower platform, with the upper platform above the lower platform. Reinforcing ribs are provided between the upper and lower platforms. A pair of guide rods are provided between the lower platform and the top plate of the frame. The power unit is mounted on the upper platform. The shearing unit includes a slider, a cutter head, several blades, and a locking mechanism. The slider is slidably mounted on the pair of guide rods. The cutter head is rotatably mounted on the slider. Several blades are evenly distributed in a ring on the cutter head. The locking mechanism is located on the side of the slider away from the cutter head and is coaxially connected to the cutter head. The power unit provides power to the slider and the locking mechanism. The servo motor is started, driving the transmission shaft to rotate. One end of the transmission shaft is supported by the frame to ensure the stability of the rotation. The cam converts the rotational motion into a thrust that drives the slider downwards.

[0006] Furthermore, an extension block is provided at the top of the slider, and a spring is provided between the bottom of the slider and the lower platform. The power unit includes a servo motor and a cam. The servo motor is mounted on the upper platform, and a drive shaft is mounted on the motor shaft of the servo motor. The end of the drive shaft away from the servo motor is connected to the top of the frame. The cam is mounted on the drive shaft and contacts the extension block. In the initial state, the elastic force of the spring pushes the slider upward, so that the extension block fits against the contour surface of the cam. When the cam rotates to the working stroke stage, the cam gradually pushes the extension block, and the slider overcomes the resistance of the spring and slides downward. The cutter head then moves downward. The silicon steel sheet conveyed by the blade shearing conveyor on the cutter head facing the workstation and the waste scrap generated by shearing fall into the recycling bin directly below under the action of gravity, achieving centralized recycling. As the cam continues to rotate and enters the return stroke stage, the pressure applied to the extension block decreases, the spring releases its stored energy, and pushes the slider to quickly return to its original position along the guide rod. The cutter head drives the blade to leave the shearing area, completing one complete stamping cycle.

[0007] Furthermore, the shearing section includes a rotating shaft, and the locking mechanism includes a grooved wheel. The rotating shaft is rotatably mounted on the slider, and the cutter head is fixedly connected to the rotating shaft via a pressure plate and fasteners. The grooved wheel is mounted on the rotating shaft and is located on the side of the slider opposite to the cutter head. A protective cover is provided on the side of the slider where the grooved wheel is mounted. The number of locking slots on the grooved wheel is the same as the number of blades, and the locking slots correspond to the radial positions of the blades. While the slider reciprocates up and down for shearing, the driving sprocket on the drive shaft continuously transmits power to the driven sprocket via a chain. The driven sprocket drives one dial wheel to rotate, and transmits the rotational motion to another dial wheel via a synchronous chain. Through the synchronous drive design, the two dial wheels simultaneously engage or disengage with the locking slots of the grooved wheel, providing greater torque when driving the grooved wheel to rotate, and achieving double-sided synchronous locking when locking the grooved wheel, enhancing the impact resistance and stability of the cutter head and preventing it from deflecting during shearing.

[0008] Furthermore, the locking mechanism includes a pair of dial wheels, which are rotatably mounted on the slider. The pair of dial wheels are located on the upper and lower sides of the grooved wheel. A synchronous sprocket is coaxially mounted on the side of the pair of dial wheels away from the slider, and a synchronous chain connects the two synchronous sprockets. When the cam pushes the slider downwards, the dial wheels rotate into the locking slots of the grooved wheel, locking the grooved wheel and the cutter head fixed to it, ensuring that the current blade remains stationary under shearing impact, guaranteeing a clean cut. When the spring pushes the slider upwards to reset, the dial wheels rotate the grooved wheel by a fixed angle. The grooved wheel, through a rotating shaft, drives the cutter head to rotate synchronously through the same angle, allowing the next new blade to precisely enter the shearing station, while the blade that has just finished shearing rotates away from the station.

[0009] By locking during shearing and indexing rotation during lifting, the cutter head automatically rotates away to replace the blade after each silicon steel sheet is cut, avoiding the same blade from being subjected to multiple impacts continuously. This ensures that the blades entering the workstation are in a state of sufficient heat dissipation each time, solving the technical problem of rapid wear of blades due to continuous heating during operation.

[0010] Furthermore, a driven sprocket is coaxially connected to the pulley located at the upper end of the grooved wheel. The locking mechanism includes a driving sprocket, a chain, and a pair of tensioning components. The driving sprocket is mounted on the drive shaft, and the pair of tensioning components are mounted below the upper platform. The pair of tensioning components are symmetrically arranged, and each tensioning component includes a tensioning wheel. The chain is installed between the driving sprocket, the driven sprocket, and the pair of tensioning wheels.

[0011] Furthermore, each tensioning assembly includes an adapter and an elastic element. The elastic element is installed below the upper platform, and the adapter is slidably installed below the upper platform. One end of the adapter is connected to the elastic element, and the other end is rotatably connected to the tensioning wheel. Since the driving sprocket is mounted on a fixed frame, while the driven sprocket is mounted on a reciprocating slider, the center distance between them changes periodically with the movement of the slider. When the slider descends, the center distance increases, the chain is tightened, and the chain pulls the tensioning wheel in the opposite direction, which in turn moves the adapter. When the slider rises, the center distance decreases, the chain becomes slack, the elastic element pulls the adapter, and the adapter drives the tensioning wheel to move, thus tightening the chain again.

[0012] Furthermore, each tensioning assembly includes a cylinder mounted below the upper platform. The piston rod of each cylinder is rotatably connected to the tensioning wheel. An elastic element is installed inside the cylinder. A pair of one-way valves are provided at both ends of the cylinder, corresponding to the rod-side and rodless-side chambers, respectively, with the valves facing opposite directions. The piston inside the cylinder reciprocates, and the gas in the rod-side and rodless-side chambers is alternately drawn in and expelled. The expelled gas is guided through a connecting pipe to the jet outlet on the extension block.

[0013] Furthermore, pipes are connected to the one-way valves at the corresponding air outlets of the rod-side and rodless-side chambers, with the end of the pipe furthest from the one-way valve fixed to the extension block. Since the extension block moves synchronously with the slider, its air outlet is close to the cutter head, and the airflow direction coincides with the blade's movement path. Therefore, after the blade completes shearing, the airflow ejected from the pipe blows onto the blade surface that has moved away from the workstation. The blade not only dissipates heat through natural air convection during non-working cycles but also accelerates heat exchange under the intervention of active airflow, improving cooling efficiency and further ensuring the blade's service life and shearing quality. The cooling airflow generated by the chain-driven piston movement requires no additional energy consumption, achieving energy savings.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a cam to drive the slider to rise and fall, and simultaneously utilizes a double-wheel mechanism to achieve the sequential movement of the punching and shearing action and the indexing action of the cutter head. During shearing, the wheel locks the grooved wheel to ensure that the blade at the work station can stably withstand the impact. When the slider is raised, the wheel drives the grooved wheel to rotate, automatically replacing the next blade. This ensures that each blade is only subjected to force in a single shearing operation, avoiding continuous impact and heat accumulation, reducing the wear rate, extending the blade's service life, reducing the replacement frequency, and improving the efficiency of continuous operation.

[0015] 2. Utilizing the characteristic that the chain center distance changes periodically due to the lifting and lowering of the slider, the cylinder piston is driven to reciprocate. The resulting compressed airflow is guided to the jet nozzle that moves synchronously with the slider and blows onto the blade that has left the work station, achieving active cooling. The cooling process does not require an additional power source, is energy-saving and environmentally friendly, and further ensures the cutting quality of the blade. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the frame portion of the present invention; Figure 4 This is a schematic diagram of the slider part of the present invention; Figure 5 This is a schematic diagram of the locking mechanism of the present invention; Figure 6 This is a schematic diagram of the grooved wheel portion of the present invention.

[0017] In the diagram: 1. Conveyor; 2. Frame; 3. Upper platform; 4. Lower platform; 5. Reinforcing rib; 6. Guide rod; 7. Slider; 8. Spring; 9. Protective cover; 10. Cutter head; 11. Blade; 12. Rotary shaft; 13. Pressure plate; 14. Fastener; 15. Grooved wheel; 16. Dial wheel; 17. Synchronous chain; 18. Servo motor; 19. Drive shaft; 20. Drive sprocket; 21. Chain; 22. Driven sprocket; 23. Tensioner; 24. Cylinder; 25. Cam; 26. Extension block; 27. Recycling bin. Detailed Implementation

[0018] 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.

[0019] like Figures 1-6 As shown, Embodiment 1 of the present invention: A transformer silicon steel sheet shearing device for recycling scrap materials includes a conveyor 1, a shearing machine, and a recycling bin 27. The conveyor 1 is located on one side of the shearing machine, and the recycling bin 27 is located below the shearing machine. The shearing machine includes a frame 2, a power unit, and a shearing unit. An upper plate 3 and a lower plate 4 are provided on the frame 2. The upper plate 3 is located above the lower plate 4. A reinforcing rib 5 is provided between the upper plate 3 and the lower plate 4. A pair of guide rods 6 are provided between the lower plate 4 and the top plate of the frame 2. The power unit is installed on the upper plate 3. The shearing unit includes a slider 7, a cutter head 10, several blades 11, and a locking mechanism. The slider 7 is slidably installed on the pair of guide rods 6. The cutter head 10 is rotatably installed on the slider 7. Several blades 11 are evenly distributed in a ring on the cutter head 10. The locking mechanism is located on the side of the slider 7 away from the cutter head 10 and is coaxially connected to the cutter head 10. The power unit provides power to the slider 7 and the locking mechanism. Start the servo motor 18, which drives the transmission shaft 19 to rotate. One end of the transmission shaft 19 is supported by the frame 2 to ensure the stability of the rotation of the transmission shaft 19. The cam 25 converts the rotational motion into a thrust that drives the slider 7 to move downward.

[0020] An extension block 26 is provided at the top of the slider 7, and a spring 8 is provided between the bottom of the slider 7 and the lower platform 4. The power unit includes a servo motor 18 and a cam 25. The servo motor 18 is mounted on the upper platform 3, and a drive shaft 19 is mounted on the motor shaft of the servo motor 18. The end of the drive shaft 19 away from the servo motor 18 is rotatably connected to the top of the frame 2. The cam 25 is mounted on the drive shaft 19 and contacts the extension block 26. The shearing unit includes a rotating shaft 12, and the locking mechanism includes a grooved wheel 15. The rotating shaft 12 is rotatably mounted on the slider 7. The cutter head 10 is fixedly connected to the rotating shaft 12 by a pressure plate 13 and fasteners 14. The grooved wheel 15 is mounted on the rotating shaft 12 and is located on the side of the slider 7 away from the cutter head 10. The side of the slider 7 where the grooved wheel 15 is mounted is provided with a protective barrier. In the initial state, the elastic force of the spring 8 pushes the slider 7 upward, causing the extension block 26 to fit against the contour surface of the cam 25. When the cam 25 rotates to the working stroke stage, the cam 25 gradually pushes the extension block 26, and the slider 7 overcomes the resistance of the spring 8 and slides downward. The cutter head 10 then moves downward, and the blade 11 on the cutter head 10, which is directly opposite the workstation, cuts the silicon steel sheet conveyed by the conveyor 1. The waste scraps generated by cutting fall into the recycling box 27 directly below under the action of gravity, achieving centralized recycling. As the cam 25 continues to rotate and enters the return stroke stage, the pressure applied to the extension block 26 decreases, the spring 8 releases its stored energy, and pushes the slider 7 to quickly return to its original position along the guide rod 6. The cutter head 10 drives the blade 11 to leave the cutting area, completing one complete stamping cycle.

[0021] The number of locking slots on the grooved wheel 15 is the same as the number of blades 11. The locking slots correspond to the radial positions of the blades 11. The locking mechanism includes a pair of pulleys 16, which are rotatably mounted on the slider 7. The pair of pulleys 16 are located on the upper and lower sides of the grooved wheel 15. A synchronous sprocket is coaxially arranged on the side of the pair of pulleys 16 away from the slider 7. A synchronous chain 17 connects the two synchronous sprockets. While the slider 7 reciprocates up and down, the drive sprocket 20 on the drive shaft 19 continuously transmits power to the driven sprocket 22 through the chain 21. The driven sprocket 22 drives one pulley 16 to rotate and transmits the rotational motion to the other pulley 16 through the synchronous chain 17. Through the synchronous drive design, the two pulleys 16 simultaneously engage or disengage with the locking slots of the grooved wheel 15, providing greater torque when driving the grooved wheel 15 to rotate and achieving double-sided synchronous locking when locking the grooved wheel 15. This enhances the impact resistance and stability of the cutter head 10 and prevents it from deflecting during the cutting moment.

[0022] When the cam 25 pushes the slider 7 down, the dial wheel 16 rotates into the locking slot of the grooved wheel 15. At this time, the grooved wheel 15 is locked, and the cutter head 10 fixed to the grooved wheel 15 is also locked, ensuring that the current blade 11 remains stationary when subjected to shearing impact force, ensuring a smooth cut. When the spring 8 pushes the slider 7 to return to its original position and lift, the dial wheel 16 moves the grooved wheel 15 to rotate by a fixed angle. The grooved wheel 15 drives the cutter head 10 to rotate synchronously through the same angle via the rotating shaft 12, so that the next brand-new blade 11 accurately enters the shearing station. The blade 11 that has just finished shearing turns away from the station. Through the coordinated movement of locking during shearing and indexing rotation during lifting, after each silicon steel sheet is punched, the cutter head 10 automatically turns away to replace the blade 11, avoiding the same blade 11 from being subjected to multiple impacts continuously. This ensures that each blade 11 entering the station is in a state of sufficient heat dissipation, solving the technical problem of rapid wear of the blade 11 due to continuous working and heating.

[0023] A driven sprocket 22 is coaxially connected to the pulley 16 located at the upper end of the grooved wheel 15. The locking mechanism includes a driving sprocket 20, a chain 21, and a pair of tensioning components. The driving sprocket 20 is mounted on the drive shaft 19, and the pair of tensioning components are mounted below the upper platform 3. The pair of tensioning components are symmetrically arranged. Each tensioning component includes a tensioning wheel 23. The chain 21 is mounted between the driving sprocket 20, the driven sprocket 22, and the pair of tensioning wheels 23. Each tensioning component includes an adapter and an elastic element. The elastic element is mounted below the upper platform 3, and the adapter is slidably mounted below the upper platform 3. One end of the adapter is connected to the elastic element, and the other end of the adapter is rotatably connected to the tensioning wheel 23. Since the driving sprocket 20 is mounted on the fixed frame 2, and the driven sprocket 22 is mounted on the reciprocating slider 7, the center distance between the two changes periodically with the movement of the slider 7. When the slider 7 descends, the center distance increases, the chain 21 is tightened, and the chain 21 pulls the tension wheel 23 in the opposite direction, which in turn pulls the adapter to move. When the slider 7 rises, the center distance decreases, the chain 21 becomes slack, and the elastic element pulls the adapter to move. The adapter drives the tension wheel 23 to move, and the chain 21 is tightened again.

[0024] Embodiment 2 of the present invention provides a tensioning assembly different from that in Embodiment 1. The difference is that in this embodiment, a cylinder 24 is used instead of an adapter. The chain 21 induces piston movement to generate a cooling airflow, which blows onto the surface of the blade 11 that has moved away from the workstation position. The blade 11 can accelerate heat exchange under the intervention of the active airflow. The specific details are as follows: Each tensioning assembly includes a cylinder 24, which is installed below the upper platform 3. The piston rod of each cylinder 24 is rotatably connected to the tensioning wheel 23. An elastic element is provided inside the cylinder 24. A pair of one-way valves are opened at both ends of the cylinder 24, corresponding to the rod chamber and the rodless chamber. The pair of one-way valves are set in opposite directions. Pipes (not shown in the figure) are connected to the one-way valves that are connected to the rod chamber and the rodless chamber. The end of the pipe away from the one-way valve is fixed to the extension block 26.

[0025] The piston inside cylinder 24 reciprocates. A pair of one-way valves with opposite directions are provided at both ends of cylinder 24. Gas in the rod chamber and rodless chamber is alternately drawn in and squeezed out. The squeezed out gas is guided to the jet nozzle on the extension block 26 through the connecting pipe. Since the extension block 26 moves synchronously with the slider 7, its jet nozzle is close to the cutter head 10. The airflow jet direction is kept consistent with the movement path of the blade 11. Therefore, after the blade 11 completes the shearing, the airflow ejected from the pipe will blow onto the surface of the blade 11 that has left the work position. The blade 11 not only relies on natural air convection to dissipate heat during non-working cycles, but also accelerates heat exchange under the intervention of active airflow, improves cooling efficiency, and further ensures the service life and shearing quality of the blade 11 without additional energy consumption, achieving the effect of energy saving.

[0026] The working principle of this invention is as follows: The servo motor 18 is started, which drives the transmission shaft 19 to rotate. One end of the transmission shaft 19 is supported by the frame 2 to ensure the stability of the rotation of the transmission shaft 19. The cam 25 converts the rotational motion into a thrust that drives the slider 7 to move downward. In the initial state, the elastic force of the spring 8 pushes the slider 7 upward, so that the extension block 26 fits against the contour surface of the cam 25. When the cam 25 rotates to the working stroke stage, the cam 25 gradually pushes the extension block 26, and the slider 7 overcomes the resistance of the spring 8 and slides downward. The cutter head 10 moves downward accordingly. The blade 11 on the cutter head 10, which is directly opposite the work station, cuts the silicon steel sheet conveyed by the conveyor 1. The waste scrap generated by cutting falls into the recycling box 27 directly below under the action of gravity, realizing centralized recycling. As the cam 25 continues to rotate and enters the return stroke stage, the pressure applied to the extension block 26 decreases, the spring 8 releases its stored energy, and pushes the slider 7 to quickly return upward along the guide rod 6. The cutter head 10 drives the blade 11 to leave the cutting area, completing a complete stamping cycle.

[0027] While the slider 7 reciprocates up and down, the drive sprocket 20 on the drive shaft 19 continuously transmits power to the driven sprocket 22 via the chain 21. The driven sprocket 22 drives one dial wheel 16 to rotate, and transmits the rotational motion to the other dial wheel 16 via the synchronous chain 17. Through the synchronous drive design, the two dial wheels 16 simultaneously engage or disengage with the locking slot of the grooved wheel 15. This provides greater torque when driving the grooved wheel 15 to rotate, and achieves double-sided synchronous locking when locking the grooved wheel 15, thereby enhancing the impact resistance and stability of the cutter head 10 and preventing it from deflecting during the cutting moment.

[0028] When the cam 25 pushes the slider 7 down, the dial wheel 16 rotates into the locking slot of the grooved wheel 15. At this time, the grooved wheel 15 is locked, and the cutter head 10 fixed to the grooved wheel 15 is also locked, ensuring that the current blade 11 remains stationary when subjected to shearing impact force, ensuring a smooth cut. When the spring 8 pushes the slider 7 to return to its original position and lift, the dial wheel 16 moves the grooved wheel 15 to rotate by a fixed angle. The grooved wheel 15 drives the cutter head 10 to rotate synchronously through the same angle via the rotating shaft 12, so that the next brand-new blade 11 accurately enters the shearing station. The blade 11 that has just finished shearing turns away from the station. Through the coordinated movement of locking during shearing and indexing rotation during lifting, after each silicon steel sheet is punched, the cutter head 10 automatically turns away to replace the blade 11, avoiding the same blade 11 from being subjected to multiple impacts continuously. This ensures that each blade 11 entering the station is in a state of sufficient heat dissipation, solving the technical problem of rapid wear of the blade 11 due to continuous working and heating.

[0029] Since the driving sprocket 20 is mounted on the fixed frame 2, and the driven sprocket 22 is mounted on the reciprocating slider 7, the center distance between the two changes periodically with the movement of the slider 7. When the slider 7 descends, the center distance increases, the chain 21 is tightened, and the chain 21 pulls the tension wheel 23 in the opposite direction, which in turn pulls the adapter to move. When the slider 7 rises, the center distance decreases, the chain 21 becomes slack, and the elastic element pulls the adapter to move. The adapter drives the tension wheel 23 to move, and the chain 21 is tightened again.

[0030] If the adapter is replaced by a cylinder 24, the chain 21 triggers the piston movement to generate a cooling airflow, which blows onto the surface of the blade 11 that has left the workstation position. The blade 11 can accelerate heat exchange under the intervention of the active airflow. The piston inside the cylinder 24 moves back and forth. The cylinder 24 is equipped with a pair of one-way valves arranged in opposite directions at both ends. The gas in the rod chamber and the rodless chamber is alternately drawn in and squeezed out. The squeezed gas is guided to the jet nozzle on the extension block 26 through the connecting pipe. Since the extension block 26 moves synchronously with the slider 7, its jet nozzle is close to the cutter head 10. The airflow jet direction is kept consistent with the movement path of the blade 11. Therefore, after the blade 11 completes the shearing, the airflow ejected from the pipe will blow onto the surface of the blade 11 that has left the workstation position. The blade 11 not only relies on natural air convection for heat dissipation during non-working cycles, but can also accelerate heat exchange under the intervention of the active airflow, improve cooling efficiency, and further ensure the service life and shearing quality of the blade 11 without additional energy consumption, thus achieving energy saving.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A transformer silicon steel sheet shearing device for recycling scrap materials, characterized in that: It includes a conveyor (1), a shearing machine and a recycling bin (27), wherein the conveyor (1) is located on one side of the shearing machine and the recycling bin (27) is located below the shearing machine; The shearing machine includes a frame (2), a power unit, and a shearing unit. The frame (2) is provided with an upper plate (3) and a lower plate (4). The upper plate (3) is located above the lower plate (4). A pair of guide rods (6) are provided between the lower plate (4) and the top plate of the frame (2). The power unit is installed on the upper plate (3). The shearing unit includes a slider (7), a cutter head (10), several blades (11), and a locking mechanism. The slider (7) is slidably installed on a pair of guide rods (6). The cutter head (10) is rotatably installed on the slider (7). Several blades (11) are evenly distributed in a ring on the cutter head (10). The locking mechanism is located on the side of the slider (7) away from the cutter head (10). The locking mechanism is coaxially connected to the cutter head (10). The power unit provides power to the slider (7) and the locking mechanism.

2. The transformer silicon steel sheet shearing device for recycling scrap materials according to claim 1, characterized in that: The top of the slider (7) is provided with an extension block (26), and the bottom of the slider (7) is provided with a spring (8) between it and the lower platform (4). The power unit includes a servo motor (18) and a cam (25). The servo motor (18) is mounted on the upper platform (3). A transmission shaft (19) is mounted on the motor shaft of the servo motor (18). The end of the transmission shaft (19) away from the servo motor (18) is connected to the top of the frame (2). The cam (25) is mounted on the transmission shaft (19) and the cam (25) is in contact with the extension block (26).

3. The transformer silicon steel sheet shearing device for recycling scrap materials according to claim 2, characterized in that: The shearing part includes a rotating shaft (12), and the locking mechanism includes a grooved wheel (15). The rotating shaft (12) is rotatably mounted on the slider (7). The cutter head (10) is fixedly connected to the rotating shaft (12) through a pressure plate (13) and fasteners (14). The grooved wheel (15) is mounted on the rotating shaft (12) and is located on the side of the slider (7) away from the cutter head (10). The number of locking slots of the grooved wheel (15) is the same as the number of blades (11). The locking slots correspond to the radial positions of the blades (11).

4. The transformer silicon steel sheet shearing device for recycling scrap materials according to claim 3, characterized in that: The locking mechanism includes a pair of dials (16), which are rotatably mounted on the slider (7). The pair of dials (16) are arranged on the upper and lower sides of the grooved wheel (15). A synchronous sprocket is coaxially arranged on the side of the pair of dials (16) away from the slider (7). A synchronous chain (17) is connected between the two synchronous sprockets.

5. The transformer silicon steel sheet shearing device for recycling scrap materials according to claim 4, characterized in that: A driven sprocket (22) is coaxially connected to the pulley (16) located at the upper end of the grooved wheel (15). The locking mechanism includes a driving sprocket (20), a chain (21) and a pair of tensioning components. The driving sprocket (20) is mounted on the drive shaft (19). The pair of tensioning components are mounted below the upper platform (3). The pair of tensioning components are symmetrically arranged. Each tensioning component includes a tensioning wheel (23). The chain (21) is mounted between the driving sprocket (20), the driven sprocket (22) and the pair of tensioning wheels (23).

6. The transformer silicon steel sheet shearing device for recycling scrap materials according to claim 5, characterized in that: Each of the tensioning components includes an adapter and an elastic element. The elastic element is installed below the upper platform (3), and the adapter is slidably installed below the upper platform (3). One end of the adapter is connected to the elastic element, and the other end of the adapter is rotatably connected to the tensioning wheel (23).

7. The transformer silicon steel sheet shearing device for recycling scrap materials according to claim 5, characterized in that: Each tensioning assembly includes a cylinder (24) mounted below the upper platform (3). The piston rod of each cylinder (24) is rotatably connected to the tensioning wheel (23). An elastic element is provided inside the cylinder (24). A pair of one-way valves are provided at both ends of the cylinder (24) corresponding to the rod chamber and the rodless chamber. The one-way valves are set in opposite directions.

8. The transformer silicon steel sheet shearing device for recycling scrap materials according to claim 7, characterized in that: The rod chamber and rodless chamber are connected to the one-way valves that supply air to the corresponding outlets, and the end of the pipe away from the one-way valve is fixed to the extension block (26).

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