A multi-station synchronous punching device and method for a high-speed cross-cutting system of silicon steel sheets

Abstract

The present application relates to a multi-station synchronous punching device for a high-speed transverse shearing system of silicon steel sheets, and relates to the field of silicon steel sheet production; it comprises a frame, a punching station is arranged on the frame, a lifting frame is arranged above the frame near the punching station, and a lifting member for driving the lifting frame to lift and lower, at least two V-shaped punching knives are arranged on the lifting frame, and the V-shaped punching knives are arranged on both sides of the punching station; an adjustment component is also provided on the frame, and the adjustment component is used to adjust the distance between two adjacent V-shaped punching knives in the transmission direction of the silicon steel sheet; the present application has the function of improving the transverse shearing production efficiency of silicon steel sheets by reducing the number of knife drop punching times.

Description

Technical Field

[0001] The present application relates to the technical field of silicon steel sheet production, and in particular to a multi-station synchronous punching device and method for a high-speed transverse shearing system of silicon steel sheets. Background Art

[0002] In the production process of transformers, in order to enhance the transfer of magnetic flux between the two windings, it is necessary to add an iron core to the windings. The iron core of large industrial transformers is usually made of stacked silicon steel sheets. Silicon steel sheet shearing lines are usually used to cut silicon steel strips into silicon steel sheets of required size and shape for transformer stacking; the sheared silicon steel sheets generally include Figure 1 The three types of pieces shown are a yoke piece with a V-shaped notch, a side piece without a V-shaped notch and shaped like an isosceles trapezoid, and a center column piece with screaming ends.

[0003] In traditional silicon steel sheet shearing lines, the shearing devices used to cut the above three sheet types generally include V-type punches, straight shear punches and punching punches. Among them, cutting the center column sheet generally requires the following four steps: the first step is that the V-shaped punch cuts the first V-shaped cut on one side of the silicon steel sheet, and then the silicon steel sheet is conveyed to the position of the next V-shaped punch; the second step is to use the second V-shaped punch to cut the second V-shaped cut on the opposite side of the first V-shaped cut. At this time, one end of the silicon steel sheet is cut off, and the end is cut to form a sharp angle; the third step is the same as the first step. While the silicon steel sheet continues to be conveyed forward, the first V-shaped punch is used again to cut the third V-shaped cut on one side of the silicon steel sheet, and then the silicon steel sheet continues to be conveyed to the position of the next V-shaped punch. The fourth step is the same as the second step, that is, using the second V-shaped punch, a fourth V-shaped cut is cut on the opposite side of the third V-shaped cut of the silicon steel sheet. At this time, the other end of the silicon steel sheet is cut off, and the cut end forms a sharp angle. At this time, the center column sheet is cut.

[0004] Regarding the above-mentioned related technologies, the inventors found that the four-step operation adopted by the traditional silicon steel sheet cross-cutting line when cutting the center column type silicon steel sheet restricts the transmission efficiency of the silicon steel sheet, which in turn causes the overall efficiency of the silicon steel sheet to be low, so it needs to be improved. Summary of the Invention

[0005] In order to improve the technical problem of low cutting efficiency of center column sheets in traditional silicon steel sheet cross-cutting lines, the present application provides a multi-station synchronous punching device and method for a high-speed cross-cutting system for silicon steel sheets.

[0006] In the first aspect, the present application provides a multi-station synchronous punching device for a high-speed transverse shearing system of silicon steel sheets, which adopts the following technical solutions:

[0007] A multi-station synchronous punching device for a high-speed transverse shearing system for silicon steel sheets comprises a frame, a punching station is arranged on the frame, a lifting frame is arranged above the frame near the punching station, and a lifting member for driving the lifting frame to rise and fall, at least two V-shaped punching knives are arranged on the lifting frame, and the V-shaped punching knives are arranged on both sides of the punching station; an adjustment component is also provided on the frame, and the adjustment component is used to adjust the distance between two adjacent V-shaped punching knives in the transmission direction of the silicon steel sheet.

[0008] By adopting the above-mentioned technical solution, the present application uses a lifting part to drive two V-shaped punching knives to drop at the same time, reducing the number of times the knife is dropped to cut a single center column piece. A center column piece can be cut by only two knife drops at most, thereby achieving the effect of improving the punching efficiency. In addition, the spacing between two adjacent V-shaped punching knives is adjusted by adjusting the components to suit the cutting of center column pieces of different lengths, thereby improving the applicability of the present application.

[0009] Preferably, a pad is provided on the frame and below each V-shaped punch, the pad is located below the punching station, and a discharge assembly is provided on the pad for discharging the cut edge material.

[0010] By adopting the above technical solution, the setting of the pad can support the silicon steel sheet during the V-type punching process. After the punching is completed, the cut edge material can be separated from the silicon steel sheet and discharged through the discharge assembly, so that the punched silicon steel sheet can continue to be transported along the transmission direction to the downward punching position.

[0011] Preferably, the discharge assembly includes a flap rotatably connected to the pad, and a driving member for driving the flap to tilt downward relative to the pad, the V-shaped punch is located above the flap, and a discharge port is provided on the side wall of the frame.

[0012] By adopting the above technical solution, after the punching is completed, the flap is driven to rotate by the driving member so that the flap is tilted downward. At this time, the cut edge material will fall into the discharge port under the guidance of the tilted flap, thereby realizing blanking.

[0013] Preferably, the discharge assembly further comprises an adsorption member, and a surface of the flap facing the punching station is provided with an adsorption port, and the adsorption member is used to extract air from the adsorption port or blow air toward the adsorption port.

[0014] By adopting the above technical solution, after the punching is completed and the flap is driven to rotate, the adsorption part can be started to form a negative pressure at the adsorption port, so that the edge material is adsorbed on the flap, and when the flap rotates, the edge material rotates with the flap to achieve stable peeling of the edge material and the silicon steel sheet. After the flap tilts downward to a specified angle, air is blown to the adsorption port through the adsorption part to make the edge material detach from the flap and fall.

[0015] Preferably, the driving member includes a cylinder and a support plate connected to the driving end of the cylinder; the adsorption member includes an air storage tube and a piston rod, one end of the air storage tube is connected to the adsorption port, and the other end of the air storage tube is sealed, one end of the piston rod is slidably connected to the air storage tube along the length direction of the air storage tube, and the peripheral wall of the piston rod is in contact with the inner wall of the air storage tube, the other end of the piston rod passes through the air storage tube and is connected to the driving end of the cylinder, the support plate is located below the flap and can be moved to a position in contact with the lower surface of the flap, and an air leakage hole is also provided on the side wall where the flap and the pad are in contact, and the air leakage hole is connected to the adsorption port.

[0016] By adopting the above technical solution, the flap is supported by the support plate so that the upper surface of the flap is flush with the upper surface of the pad. When the cylinder is started, the cylinder drives the piston rod to move toward the end away from the suction port, so that the air at the suction port is sucked into the air storage pipe, thereby forming a negative pressure at the suction port. At this time, the cut-off edge of the silicon steel sheet will be adsorbed on the flap. Then the cylinder continues to move, driving the support plate to move, so that the support plate is separated from the flap. After losing the support of the support plate, the flap tilts downward. At this time, the side wall of the flap near the bleed hole is separated from the pad, and the bleed hole is exposed. External air will enter the suction port through the bleed hole to release the adsorption of the edge material, thereby allowing the edge material to be separated from the flap under the guidance of the inclined flap.

[0017] Preferably, a sealing gasket is provided on the side wall of the flap near the air vent, and the sealing gasket is used to fit with the backing plate.

[0018] By adopting the above technical solution, when the flap has not yet rotated and tilted downward relative to the pad, the side wall of the flap near the air leak hole is in contact with the side wall of the pad. Since the air leak hole is connected to the suction port, when the adsorption part sucks the air at the suction port, it is also easy to extract the air at the air leak hole. At this time, if the part where the flap and the pad are in contact with each other leaks, it will affect the adsorption strength of the adsorption port on the edge material. For this reason, a sealing gasket is specially provided to ensure the sealing of the side wall of the flap at the air leak hole and the side wall of the pad, so as to ensure that a stable negative pressure state is formed at the adsorption port, thereby ensuring the adsorption strength of the adsorption port on the edge material.

[0019] Preferably, a rotating shaft is provided at the end of the flap, and the flap is rotatably connected to the pad via the rotating shaft. A first gear is sleeved on the rotating shaft, and a first rack for engaging with the first gear is provided on the side wall of the support plate facing the flap, and the first gear is located on the moving path of the first rack.

[0020] By adopting the above technical solution, when the flap has not yet rotated downward relative to the pad, the side wall of the flap near the air leak hole is attached to the side wall of the pad. Since the air leak hole is connected to the suction port, when the adsorption part sucks the air at the suction port, it is also easy to extract the air at the air leak hole, and even cause negative pressure at the air leak hole. Subsequently, when the support plate is separated from the support for the flap, the suction force between the side wall of the flap at the air leak hole and the pad makes it difficult for the flap to rotate and tilt downward under the action of its own weight. For this reason, a first gear and a first rack are specially provided to drive the rotating shaft to rotate, thereby assisting the rotation of the flap.

[0021] Preferably, a push hole is provided on the side of the flap away from the pad, and the discharge assembly also includes a push rod and a moving part. The push rod is arranged on the frame and located above the push hole, and the moving part is used to drive the push rod to move downward through the push hole or move upward above the push hole.

[0022] By adopting the above technical solution, when the flap is tilted downward under the drive of the driving member, the pushing rod can be driven downward through the pushing hole by the moving member, so that the edge material originally located on the flap is pressed and accelerated to fall, thereby achieving fast and stable discharge.

[0023] Preferably, the movable member includes a second gear and two second racks, the second gear is rotatably connected to the frame, the two second racks are slidably connected to the frame along the direction of the V-shaped punch, and the two second racks are both engaged with the second gear, one of the second racks is connected to the push rod, and the other second rack is connected to the lifting frame.

[0024] By adopting the above technical solution, when the V-shaped punch moves downward to punch out the silicon steel sheet under the drive of the driving member, the push rod will move upward under the drive of the moving member. When the V-shaped punch completes punching and moves upward, the push rod will move downward under the drive of the moving member and pass through the push hole, so that the edge material falls under the pressure of the push rod.

[0025] In a second aspect, the present application further discloses a blanking method of a multi-station synchronous blanking device of a high-speed transverse shearing system for silicon steel sheets, comprising the following steps:

[0026] According to the size requirements of the center column piece to be punched, the distance between two adjacent V-shaped punches can be adjusted by adjusting the components;

[0027] When the silicon steel sheet raw material is transported to the punching station, the lifting frame is driven downward by the lifting member, so that all the V-shaped punches on the lifting frame move downward synchronously to punch the silicon steel sheet;

[0028] The silicon steel sheet that has completed the initial punching will continue to be transported along the conveying direction until the initial punching part of the silicon steel sheet moves to the bottom of the next V-shaped punching knife. Then the lifting part will be started again to drive all the V-shaped punching knives to move down for punching, and finally the center column sheet will be cut out.

[0029] In summary, this application has the following beneficial technical effects:

[0030] The present application uses a lifting member to drive two V-shaped punching knives to drop simultaneously, reducing the number of times the knife needs to be dropped to cut a single center column piece. A center column piece can be cut by only two knife drops at most, thereby improving the punching efficiency. In addition, the spacing between two adjacent V-shaped punching knives is adjusted by adjusting the components to suit the cutting of center column pieces of different lengths, thereby improving the applicability of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram showing the position distribution of the V-shaped punching knife for punching the center column sheet relative to the silicon steel sheet from a top view in the embodiment of the present application.

[0032] Figure 2 It is a structural schematic diagram of a multi-station synchronous punching device of a high-speed transverse shearing system for silicon steel sheets disclosed in Example 1.

[0033] Figure 3 It is a schematic diagram used to reflect the structure of the adjustment component in Example 1.

[0034] Figure 4 It is a cross-sectional view used to illustrate the structure of the discharge assembly in Example 1.

[0035] Figure 5 It is a cross-sectional view of a multi-station synchronous punching device of a high-speed transverse shearing system for silicon steel sheets in Example 2.

[0036] Figure 6 It is a cross-sectional view used to illustrate the structure of the discharge assembly in Example 2.

[0037] Figure 7 It is a cross-sectional view used to reflect the positional relationship between the first gear and the first rack in Example 2.

[0038] Figure 8 It is a cross-sectional view from a top perspective used to illustrate the positional relationship between the flap, the pad and the air vent in Example 1.

[0039] Explanation of the accompanying drawings: 1. Frame; 11. Punching station; 12. Lifting frame; 121. Lifting member; 13. Adjusting assembly; 131. First screw rod; 132. First motor; 133. Second screw rod; 134. Second motor; 14. Pad; 15. Discharge port; 2. Discharge assembly; 21. Flip plate; 211. Push hole; 212. Rotating shaft; 213. First gear; 214. Adsorption port; 215. Air vent; 216. Sealing gasket; 22. Driving member; 221. Cylinder; 222. Support plate; 2221. First rack; 2222. Yield arc surface; 23. Adsorption member; 231. Gas storage tube; 232. Piston rod; 24. Push rod; 25. Moving member; 251. Second gear; 252. Second rack; 3. V-shaped punch. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-8 This application is described in further detail.

[0041] The multi-station synchronous punching device of a high-speed transverse shearing system for silicon steel sheets disclosed in the present application is mainly used for cutting silicon steel sheets in the form of center column sheets. The punching device of the present application specifically controls multiple V-shaped punches for synchronous punching. Only two punching operations are required to cut a center column sheet, thereby reducing the number of punching operations when punching a single center column sheet and improving the punching efficiency of the center column sheet.

[0042] Example 1

[0043] Example 1 of the present application discloses a multi-station synchronous punching device for a high-speed transverse shearing system of silicon steel sheets. Figure 1 、 Figure 2 and Figure 3 The blanking device includes a frame 1, the middle part of the frame 1 is hollow, and a blanking station 11 is preset on the frame 1. The blanking station 11 is used for the silicon steel sheet to pass through. Two rollers distributed up and down can be rotated at one end of the frame 1 to pass the silicon steel sheet through the position between the two rollers, so that the silicon steel sheet can be transferred to the blanking station 11 by pushing.

[0044] Reference Figure 1 、 Figure 2 and Figure 3A lifting frame 12 and a lifting member 121 are provided at a position of the frame 1 near the punching station 11. The lifting frame 12 is located above the punching station 11. The lifting member 121 can be specifically a cylinder 221. The driving end of the lifting member 121 is welded to the top of the lifting frame 12. An adjustment assembly 13 is provided on the lifting frame 12. The adjustment assembly 13 specifically includes a first screw rod 131, a first motor 132, a second screw rod 133 and a second motor 134. The first screw rod 131 is a bidirectional screw rod and is rotatably connected to the lifting frame 12. The first motor 132 is installed on the lifting frame 12, and the driving end of the first motor 132 is welded to the end of the first screw rod 131. Both ends of the first screw rod 131 are threadedly connected to a suspension rod. The lower end of each suspension rod is connected to a tool holder. A V-shaped punching knife 3 is fixed to the lower surface of the tool holder by bolts. The second screw rod 133 is rotatably connected to the tool holder, the suspension rod is threadedly sleeved on the second screw rod 133, and the housing portion of the second motor 134 is fixedly mounted on the tool holder, and the driving end of the second motor 134 is fixedly welded to the driving end of the second screw rod 133. The first screw rod 131 and the first motor 132 are used to adjust the distance between two adjacent V-shaped punching knives 3 (the distance along the direction parallel to the silicon steel sheet conveyance direction), thereby enabling the production of silicon steel sheets with a specified length of center-pillar-shaped sheets according to actual production needs. The second screw rod 133 and the second motor 134 are used to adjust the vertical distance between the central corner of each V-shaped punching knife 3 and the central axis of the silicon steel sheet. The vertical distance between the central corner of the V-shaped punching knife 3 and the central axis of the silicon steel sheet can be zero, or the central corner of the V-shaped punching knife 3 can intersect with the central axis of the silicon steel sheet, so that the sharp angle of the end of the produced center-pillar-shaped silicon steel sheet meets production needs.

[0045] Reference Figure 2 and Figure 4 , a pad 14 is installed on the inner wall of the frame 1 near each V-shaped punching knife 3, the upper surface of the pad 14 is flush with the upper surface of the frame 1, the pad 14 is located below the corresponding V-shaped punching knife 3, and the pad 14 is V-shaped; each pad 14 is provided with a discharge assembly 2, the discharge assembly 2 includes a flap 21, a driving member 22 and an adsorption member 23, the flap 21 is V-shaped, and a rotating shaft 212 is fixedly welded at the end of the flap 21, the rotating shaft 212 is rotatably connected to the side wall of the pad 14, so that the flap 21 is rotatably connected to one side of the pad 14, and when the flap 21 is in a horizontal state, its upper surface is flush with the upper surface of the pad 14, and the flap 21 is located directly below the V-shaped punching knife 3.

[0046] Reference Figure 2 and Figure 4The driving member 22 is used to drive the flap 21 to rotate downward with the rotating shaft 212 as the center. The driving member 22 can be specifically a cylinder 221. The cylinder body of the driving member 22 is hinged on the frame 1, and the driving end of the driving member 22 is hinged to the lower surface of the flap 21. The side wall of the frame 1 is penetrated by a discharge port 15, and the discharge port 15 is located in the rotation direction of the flap 21; the adsorption member 23 can be specifically an air pump. The adsorption member 23 is installed on the lower surface of the flap 21, and a plurality of adsorption ports 214 are penetrated on the upper surface of the flap 21. The air inlet of the adsorption member 23 is connected to all the adsorption ports 214 through an elastically deformable pipe, and a pressure relief pipe with a valve can be connected at the position of the interconnected pipe to open the valve on the pressure relief pipe when the adsorption member 23 stops adsorption, so that the external air is gathered into the adsorption port 214 to release the suction at the adsorption port 214.

[0047] The implementation principle of the multi-station synchronous punching device of the silicon steel sheet high-speed transverse shearing system disclosed in Example 1 of the present application is as follows: when the silicon steel sheet moves to the punching station 11, the pad 14 and the horizontal flap 21 support the silicon steel sheet. At this time, the lifting member 121 is started to drive the lifting frame 12 to move downward, so that the two V-shaped punching knives 3 on the lifting frame 12 move downward synchronously and cut a V-shaped notch at the side wall of the silicon steel sheet. When the V-shaped punching knife 3 is driven to move upward, the adsorption member 23 and the The driving member 22 forms a negative pressure at the suction port 214 through the adsorption member 23, so that the triangular edge material cut off from the silicon steel sheet is adsorbed on the flap 21 and rotates downward with the flap 21. Then the adsorption member 23 is closed to release the adsorption of the edge material. At this time, the edge material is separated from the flap 21 and discharged into the discharge port 15 to realize discharge. The silicon steel sheet that has completed the initial cutting will be further conveyed to the position of the downward V-shaped punching knife 3. At this time, the knife can be dropped again to cut out a center column sheet.

[0048] The present application also discloses a blanking method of a multi-station synchronous blanking device of a high-speed transverse shearing system for silicon steel sheets, specifically comprising the following steps:

[0049] S1. Adjust the distance between two adjacent V-shaped punches by adjusting the assembly 13 according to the size requirements of the center column piece to be punched;

[0050] S2. After the silicon steel sheet raw material is transported to the punching station 11, the lifting frame 12 is driven downward by the lifting member 121, so that all the V-shaped punches 3 on the lifting frame 12 are synchronously moved downward to punch the silicon steel sheet;

[0051] S3. The silicon steel sheet that has completed the initial punching is continued to be transported along the conveying direction until the initial punching part of the silicon steel sheet moves to the bottom of the next V-shaped punching knife 3. The lifting member 121 is started again to drive all the V-shaped punching knives 3 to move down for punching, and finally the center column sheet is cut out.

[0052] Example 2

[0053] Reference Figure 5 , the difference between Example 2 of the present application and Example 1 is that: the flap 21 is V-shaped, that is, a push hole 211 is opened on the side of the flap 21 away from the pad 14, and the discharge assembly 2 also includes a push rod 24 and a moving part 25. The push rod 24 is arranged on the frame 1 and is located above the push hole 211. The moving part 25 drives the push rod 24 to move downward through the push hole 211 or move upward to above the push hole 211. The moving part 25 specifically includes a second gear 251 and two second racks 252. The second gear 251 is rotatably connected to the lifting frame 12, one of the second racks 252 is slidably connected to the frame 1 along the lifting direction of the lifting frame 12, and the lower end of the second rack 252 is welded to the push rod 24; the top of the other second rack 252 is fixedly welded to the upper surface of the tool holder on the lifting frame 12.

[0054] Reference Figure 5 and Figure 6 The driving member 22 includes a cylinder 221 and a support plate 222, and the adsorption member 23 includes an air storage tube 231 and a piston rod 232. The cylinder 221 is installed on the inner wall of the frame 1, and the driving end of the cylinder 221 is fixedly connected to the side wall of the support plate 222 through a connecting rod to drive the support plate 222 to slide. The support plate 222 is located below the flap 21, and when the driving end of the cylinder 221 is not extended, the support plate 222 is attached to the junction of the flap 21 and the pad 14 to support and stop the flap 21 from rotating.

[0055] Reference Figure 6 and Figure 7 A first rack 2221 is embedded on the upper surface of the support plate 222, and a first gear 213 is fixedly sleeved on the outside of the rotating shaft 212, and the first gear 213 is located on the moving path of the first rack 2221; a yield arc surface 2222 is provided at the end of the support plate 222 away from the driving end of the cylinder 221; when the driving end of the cylinder 221 extends, the support plate 222 slides in the direction away from the flap 21 to gradually release the support for the flap 21, and when the first rack 2221 is engaged with the first gear 213, the end with the yield arc surface 2222 is just located below the flap 21, and at this time the rotating shaft 212 will rotate downward under the meshing action of the first gear 213 and the first rack 2221.

[0056] Reference Figure 6 and Figure 7The air storage pipe 231 is fixedly installed under the pad 14 through a bracket, one end of the air storage pipe 231 is connected to all the suction ports 214 on the flap 21 through an elastically deformable pipe, and the other end of the air storage pipe 231 is sealed and closed, one end of the piston rod 232 is inserted into the air storage pipe 231, and the peripheral wall of the piston rod 232 fits the inner wall of the air storage pipe 231, and the length direction of the piston rod 232 is parallel to the length direction of the air storage pipe 231. The other end of the piston rod 232 passes through the air storage pipe 231 and is fixedly connected to the driving end of the cylinder 221; one end of the support plate 222 away from the yield arc surface 2222 extends to the elongation path of the piston of the cylinder 221, so that after the piston of the cylinder 221 extends a specified distance, the piston of the cylinder 221 drives the support plate 222 to move in the direction away from the flap 21.

[0057] Reference Figure 8 A vent hole 215 connected to the suction port 214 is also provided inside the flap 21. The vent hole 215 is located on the side wall of the flap 21 facing the pad 14. A rubber sealing gasket 216 is fixedly embedded in the side wall of the flap 21 near the vent hole 215. When the flap 21 is in a horizontal state, the sealing gasket 216 is in contact with the side wall of the pad 14 to close the vent hole 215. When the flap 21 is rotated downward, the flap 21 is separated from the side wall of the pad 14, thereby exposing the vent hole 215.

[0058] The working principle of the multi-station synchronous punching device of the silicon steel sheet high-speed transverse shearing system disclosed in Example 2 of the present application is as follows: when the V-shaped punching knife 3 is driven to move downward to punch the silicon steel sheet by the lifting member 121, the push rod 24 is driven by the second gear 251 and the second rack 252 to move upward. After the punching is completed, the V-shaped punching knife 3 moves upward. At this time, the push rod 24 moves downward and gradually inserts into the push hole 211. At the same time, the cylinder 221 is started to pull the piston rod 232 in the direction away from the flap 21 to extract the air at the suction port 214, so that the edge of the silicon steel sheet The material is adsorbed on the flap 21, and then the piston of the cylinder 221 moves and pushes the extended end of the support plate 222, so that the support plate 222 moves away from the flap 21 and removes the support for the flap 21. At this time, the flap 21 will rotate downward under the action of its own weight and the meshing action of the first gear 213 and the first rack 2221 until it reaches the position where the air vent 215 is exposed, so as to release the suction force of the adsorption port 214 on the edge material, and finally cooperate with the pushing rod 24 inserted into the pushing hole 211 to make the edge material separate from the flap 21 and fall into the discharge port for discharge, thereby realizing discharge.

[0059] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A multi-station synchronous punching device for a high-speed transverse shearing system of silicon steel sheets, comprising a frame (1), characterized in that: A punching station (11) is provided on the frame (1), a lifting frame (12) and a lifting member (121) for driving the lifting frame (12) to move up and down are provided above the frame (1) near the punching station (11), at least two V-shaped punching knives (3) are provided on the lifting frame (12), and the V-shaped punching knives (3) are provided on both sides of the punching station (11); an adjusting component (13) is also provided on the frame (1), and the adjusting component (13) is used to adjust the distance between two adjacent V-shaped punching knives (3) in the transmission direction of the silicon steel sheet; A pad (14) is provided on the frame (1) and below each V-shaped punch (3); the pad (14) is located below the punching station (11); a discharge assembly (2) is provided on the pad (14); the discharge assembly (2) is used to discharge the cut edge material; The discharge assembly (2) includes a flap (21) rotatably connected to the backing plate (14), and a driving member (22) for driving the flap (21) to tilt downward relative to the backing plate (14); the V-shaped punch (3) is located above the flap (21); and a discharge port (15) is provided on the side wall of the frame (1); The discharge assembly (2) further comprises an adsorption member (23); a surface of the flap (21) facing the punching station (11) is provided with an adsorption port (214); the adsorption member (23) is used to extract air from the adsorption port (214) or blow air toward the adsorption port (214); The driving member (22) includes a cylinder (221) and a support plate (222) connected to the driving end of the cylinder (221); the adsorption member (23) includes an air storage pipe (231) and a piston rod (232), one end of the air storage pipe (231) is connected to the adsorption port (214), the other end of the air storage pipe (231) is sealed, one end of the piston rod (232) is connected to the air storage pipe (231) by sliding along the length direction of the air storage pipe (231), and the piston rod (232) is connected to the air storage pipe (231) by sliding along the length direction of the air storage pipe (231). The peripheral wall of the (232) is in contact with the inner wall of the gas storage tube (231), the other end of the piston rod (232) passes through the gas storage tube (231) and is connected to the driving end of the cylinder (221), the supporting plate (222) is located below the flap (21) and can be moved to a position in contact with the lower surface of the flap (21), and an air leakage hole (215) is also provided on the side wall where the flap (21) and the pad (14) are in contact, and the air leakage hole (215) is connected to the adsorption port (214).

2. The multi-station synchronous blanking device for high-speed transverse shearing of silicon steel sheets according to claim 1, characterized in that: A sealing gasket (216) is provided on the side wall of the flap (21) near the air leakage hole (215), and the sealing gasket (216) is used to fit with the backing plate (14).

3. The multi-station synchronous blanking device for high-speed transverse shearing of silicon steel sheets according to claim 1, characterized in that: A rotating shaft (212) is provided at the end of the flap (21), and the flap (21) is rotatably connected to the pad (14) via the rotating shaft (212). A first gear (213) is sleeved on the rotating shaft (212). A first rack (2221) for engaging with the first gear (213) is provided on the side wall of the support plate (222) facing the flap (21), and the first gear (213) is located on the moving path of the first rack (2221).

4. The multi-station synchronous blanking device for high-speed transverse shearing of silicon steel sheets according to claim 1, characterized in that: A push hole (211) is provided on one side of the flap (21) away from the pad (14); the discharge assembly (2) further comprises a push rod (24) and a moving member (25); the push rod (24) is arranged on the frame (1) and is located above the push hole (211); the moving member (25) is used to drive the push rod (24) to move downward through the push hole (211) or to move upward to above the push hole (211).

5. The multi-station synchronous blanking device for high-speed transverse shearing of silicon steel sheets according to claim 4, characterized in that: The movable member (25) includes a second gear (251) and two second racks (252), wherein the second gear (251) is rotatably connected to the frame (1), and the two second racks (252) are slidably connected to the frame (1) along the direction of the V-shaped punching knife (3), and the two second racks (252) are both engaged with the second gear (251), wherein one of the second racks (252) is connected to the push rod (24), and the other second rack (252) is connected to the lifting frame (12).

6. The blanking method of the multi-station synchronous blanking device of the silicon steel sheet high-speed transverse shearing system according to claim 1, characterized in that: The steps include: According to the size requirements of the center column piece to be punched, the distance between two adjacent V-shaped punching knives (3) is adjusted by adjusting the component (13); After the silicon steel sheet raw material is transported to the punching station (11), the lifting frame (12) is driven downward by the lifting member (121), so that all the V-shaped punches (3) on the lifting frame (12) are synchronously moved downward to punch the silicon steel sheet; The silicon steel sheet that has completed the initial punching is continuously conveyed along the conveying direction until the initial punching portion of the silicon steel sheet moves to the bottom of the next V-shaped punching knife (3), and then the lifting member (121) is started again to drive all the V-shaped punching knives (3) to move downward for punching, and finally the center column sheet is cut out.

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