A double V punch back-to-back arrangement of silicon steel sheet column shearing equipment

CN224779468UActive Publication Date: 2026-09-22SHANGHAI ZHONGPU ELECTROMAGNETIC TECH CO LTD
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Patent Information

Application Number
CN202522175751.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2026-09-22
Estimated Expiration
2035-10-15

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于至少解决现有技术中存在的技术问题之一,提供一种双V冲背靠背布置的硅钢片中柱剪切设备,能够解决导向块因长时间使用而磨损,或者需要根据不同规格的硅钢片更换不同型号的导向块时,操作人员需要使用专业工具逐一拧下固定螺栓,由于导向块通常安装在设备内部较为紧凑的空间位置,操作空间有限,使得拆卸螺栓的过程十分繁琐,不仅耗费大量的时间和人力,还容易因操作不便导致螺栓损坏或操作人员受伤,而且在安装新的导向块时,同样需要在狭小空间内进行精确对位和螺栓紧固,安装精度难以保证,进一步影响硅钢片的导向效果和剪切质量,进而降低了设备的实用性的问题

Benefits of technology

1、该双V冲背靠背布置的硅钢片中柱剪切设备,通过限位组件中转动防护壳外壁的转动螺纹杆套,转动螺纹杆套与转动螺纹杆螺纹连接,转动螺纹杆套的转动带动转动螺纹杆移动,进而带动限位块从连接座的第二限位块槽内脱离,然后拉动导向块即可将其取下,这样拆卸导向块简单快捷,避免了工作人员需要借助工具逐一对螺栓进行拆卸,有效的提高了导向块的拆卸效率,同时提高了硅钢片的导向效果和剪切质量。

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Abstract

The utility model discloses a double V punch back to back arrangement's silicon steel sheet middle column shearing equipment relates to shearing technical field. A double V punch back to back arrangement's silicon steel sheet middle column shearing equipment, including first middle column piece shearing machine main part, second middle column piece shearing machine main part, support frame and two shearing knives, be provided with limit component on the support frame, and the limit component includes motor, two shearing knives and two guide blocks, through the rotation screw rod sleeve of rotating protective shell outer wall in limit component, and the rotation screw rod sleeve is connected with rotation screw rod screw, and the rotation of rotation screw rod sleeve drives rotation screw rod to remove, and then drive limit block to separate from the second limit block groove of connecting seat, then pull guide block and can take down it, and the guide block is simple and quick in this way to disassemble, avoided the staff to need to help tool to dismantle one by one to screw, effectively improved the disassembly efficiency of guide block, improved the guide effect and shearing quality of silicon steel sheet simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of shearing technology, and in particular to a shearing device for silicon steel sheets with a double V-shaped back-to-back arrangement of the central column. Background Technology

[0002] In the field of power equipment manufacturing, silicon steel sheets are a key material for the cores of transformers, reactors, and other equipment. The processing quality of these sheets directly affects the performance and efficiency of the equipment. The silicon steel sheet shearing equipment with a double V-shaped punch back-to-back arrangement has become an indispensable piece of equipment in the silicon steel sheet processing process due to its efficient and precise shearing technology. Through its unique double V-shaped punch arrangement, this equipment can quickly and efficiently shear the sharp corners at both ends of the silicon steel sheet core, greatly improving production efficiency and reducing the processing time of the silicon steel sheets.

[0003] In the shearing process of silicon steel sheets, guide blocks play a crucial role in ensuring that the sheets are accurately transported to the shearing station along a predetermined path, thereby guaranteeing shearing accuracy and product quality. The main function of the guide blocks is to position and guide the silicon steel sheets, preventing them from shifting or twisting during transport. This ensures the sheets enter the shearing area stably and accurately, cooperating precisely with the double V-shaped punches to complete the shearing operation. In existing double-V punch back-to-back silicon steel sheet shearing equipment, most guide blocks are fixedly installed by bolts to the conveyor platform or equipment frame. While this method ensures a certain degree of stability, when the guide blocks wear down due to prolonged use, or when different models of guide blocks need to be replaced for different specifications of silicon steel sheets, operators need to use specialized tools to unscrew each bolt. Since the guide blocks are usually installed in a relatively compact space inside the equipment, the limited operating space makes the bolt removal process very cumbersome, consuming a lot of time and manpower, and easily leading to bolt damage or operator injury due to inconvenience. Moreover, when installing new guide blocks, precise alignment and bolt tightening are also required in a confined space, making it difficult to guarantee installation accuracy. This further affects the guiding effect and shearing quality of the silicon steel sheets, thus reducing the practicality of the equipment. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a silicon steel sheet shearing device with a double V-punch back-to-back arrangement. This device can solve the problem that when the guide blocks wear down due to long-term use, or when different models of guide blocks need to be replaced according to different specifications of silicon steel sheets, the operator needs to use professional tools to unscrew the fixing bolts one by one. Since the guide blocks are usually installed in a relatively compact space inside the equipment, the operating space is limited, making the process of unscrewing the bolts very cumbersome. This not only consumes a lot of time and manpower, but also easily leads to bolt damage or operator injury due to inconvenient operation. Moreover, when installing new guide blocks, precise alignment and bolt tightening are also required in a narrow space, making it difficult to guarantee installation accuracy. This further affects the guiding effect and shearing quality of the silicon steel sheets, thereby reducing the practicality of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a silicon steel sheet shearing device with double V-punch back-to-back arrangement, comprising a first column shearing machine body, a second column shearing machine body, a support frame and two shearing blades, wherein the support frame is provided with a limit component; The limiting assembly includes a motor, two shear blades and two guide blocks. The motor is fixedly mounted on the upper surface of a fixed plate on one side of the support frame. The lower surface of each of the two sliding seats is provided with a connecting seat mounting groove. A bidirectional threaded rod is rotatably connected inside the support frame. The upper ends of the two sliding seats are threaded to the outer wall of the bidirectional threaded rod. A connecting seat is fixedly mounted on the upper end of each of the two guide blocks. The outer walls on both sides of each of the two connecting seats are provided with a second limiting block groove. The lower ends of the two sliding seats are fixedly connected to the outer walls of both sides of the protective shell. The outer walls of the four protective shells are rotatably connected to the rotating threaded rod sleeves. The inner walls of the two connecting seat mounting slots are provided with first limiting block slots. The four first limiting block slots are slidably connected to the inside of each first limiting block slot. The four first limiting block slots are provided with rotating threaded rods. The upper inner wall of the support frame is provided with two first T-shaped block slots. The upper outer walls of the two sliding seats are fixedly connected with two first T-shaped blocks. The inner wall of the connecting seat mounting slot is provided with four second T-shaped block slots. The four T-shaped blocks on the outer wall of the connecting seat are slidably connected to the inside of the corresponding second T-shaped block slots.

[0006] Preferably, the support frame is U-shaped, and the lower ends of the support frame are fixedly connected to the upper surface of the base of the first and second central column shearing machines. Both guide blocks are L-shaped, and the output end of the motor extends into the interior of the support frame and is fixedly connected to one end of the bidirectional threaded rod.

[0007] Preferably, the outer walls of the two connecting seats are slidably connected to the interior of the corresponding connecting seat mounting groove, and the ends of the four limiting blocks near the second limiting block grooves are slidably extended into the interior of the connecting seat mounting grooves and are slidably connected to the interior of the corresponding second limiting block grooves. The four rotating threaded rods are fixedly connected to the outer wall of the corresponding limit block at one end.

[0008] Preferably, the ends of the four rotating threaded rod sleeves near the limiting block all extend into the interior of the first limiting block groove, and the ends of the four rotating threaded rods away from the limiting block are respectively connected to the internal threads of the corresponding rotating threaded rod sleeves. The outer walls of the four first T-shaped blocks are slidably connected to the interior of the corresponding first T-shaped block grooves.

[0009] Preferably, both the first and second middle column shearing machine bodies are fixedly mounted on the base; Both the main body of the first and second middle column shearing machines are equipped with drive components on their upper surfaces.

[0010] Preferably, the output ends of the two drive components slide into the interior of the first and second middle column shearing machine bodies and are fixedly connected to the upper surface of the corresponding shearing blades, respectively. The limiting component is located between the main body of the first middle column shearing machine and the connecting seat, and the shearing area of ​​the main body of the first middle column shearing machine is opposite to the shearing area of ​​the connecting seat.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This double V-punch back-to-back arrangement silicon steel sheet shearing equipment uses a rotating threaded sleeve on the outer wall of the rotating protective shell in the limiting assembly. The rotating threaded sleeve is threadedly connected to the rotating threaded rod. The rotation of the rotating threaded sleeve drives the rotating threaded rod to move, thereby causing the limiting block to disengage from the second limiting block groove of the connecting seat. Then, the guide block can be pulled to remove it. This method of disassembling the guide block is simple and quick, avoiding the need for workers to use tools to disassemble the bolts one by one. It effectively improves the disassembly efficiency of the guide block, and at the same time improves the guiding effect and shearing quality of the silicon steel sheet. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the external structure of the sliding seat of this utility model; Figure 3 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the support frame of this utility model.

[0013] Reference numerals: 1. Main body of the first central column shearing machine; 2. Connecting seat; 3. Main body of the second central column shearing machine; 4. Drive assembly; 5. Shearing blade; 6. Support frame; 7. Motor; 8. Sliding seat; 9. Protective shell; 10. Rotating threaded rod sleeve; 11. Bidirectional threaded rod; 12. Guide block; 13. First T-shaped block groove; 14. First T-shaped block; 15. Rotating threaded rod; 16. Limiting block; 17. First limiting block groove; 18. Connecting seat mounting groove; 19. Second T-shaped block groove; 20. Second limiting block groove. Detailed Implementation

[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0015] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0017] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a silicon steel sheet shearing device with double V-punch back-to-back arrangement, including a first column shearing machine body 1, a second column shearing machine body 3, a support frame 6 and two shearing blades 5; Limiting components are provided on the support frame 6; The limiting assembly includes a motor 7, two shearing blades 5, and two guide blocks 12. The support frame 6 is U-shaped. The motor 7 is fixedly mounted on the upper surface of a fixed plate on one side of the support frame 6. The lower ends of the support frame 6 are fixedly connected to the upper surfaces of the bases of the first and second central column shearing machine bodies 1 and 3. The lower surfaces of the two sliding seats 8 are each provided with a connecting seat mounting groove 18. The two guide blocks 12 are both L-shaped. A bidirectional threaded rod 11 is rotatably connected inside the support frame 6. The output end of the motor 7 extends rotatably into the interior of the support frame 6 and is connected to the bidirectional threaded rod 11. One end of the threaded rod 11 is fixedly connected. The upper ends of the two sliding seats 8 are threadedly connected to the outer wall of the bidirectional threaded rod 11. The upper ends of the two guide blocks 12 are fixedly mounted with connecting seats 2. The outer walls of the two connecting seats 2 are slidably connected to the interior of the corresponding connecting seat mounting grooves 18. The outer walls on both sides of the two connecting seats 2 are provided with second limiting block grooves 20. The lower ends of the two sliding seats 8 are fixedly connected with protective shells 9. The outer walls of the four protective shells 9 are rotatably connected with rotating threaded rod sleeves 10. The inner walls on both sides of the two connecting seat mounting grooves 18 are provided with first limiting blocks. The four first limiting block slots 17 are each slidably connected to limiting blocks 16. The ends of the four limiting blocks 16 near the second limiting block slots 20 extend slidably into the connecting seat mounting slots 18 and are respectively slidably connected to the interior of the corresponding second limiting block slots 20. Each of the four first limiting block slots 17 is provided with a rotating threaded rod 15. The ends of the four rotating threaded rods 15 near the limiting blocks 16 are respectively fixedly connected to the outer wall of the corresponding limiting blocks 16. The ends of the four rotating threaded rod sleeves 10 near the limiting blocks 16 rotatably extend into the first limiting block slots. Inside 17, the ends of four rotating threaded rods 15 away from the limiting block 16 are respectively connected to the internal threads of the corresponding rotating threaded rod sleeves 10. The upper inner wall of the support frame 6 has two first T-shaped block grooves 13. The upper outer wall of the two sliding seats 8 is fixedly connected to two first T-shaped blocks 14. The outer walls of the four first T-shaped blocks 14 are respectively slidably connected to the interior of the corresponding first T-shaped block grooves 13. The inner wall of the connecting seat mounting groove 18 has four second T-shaped block grooves 19. The four T-shaped blocks on the outer wall of the connecting seat 2 are respectively slidably connected to the interior of the corresponding second T-shaped block grooves 19.

[0019] The first and second central column shearing machine bodies 1 and 3 are both fixedly mounted on the base. The upper surfaces of the outer shells of the first and second central column shearing machine bodies 1 and 3 are equipped with drive components 4. The output ends of the two drive components 4 slide into the interiors of the first and second central column shearing machine bodies 1 and 3 respectively and are fixedly connected to the upper surfaces of the corresponding shearing blades 5. The limiting component is located between the first central column shearing machine body 1 and the connecting seat 2. The shearing area of ​​the first central column shearing machine body 1 is opposite to the shearing area of ​​the connecting seat 2.

[0020] Furthermore, when using this device, firstly, when processing silicon steel sheets of different specifications, the motor 7 installed on the upper surface of the fixed plate on one side of the support frame 6 is started. The output end of the motor 7 drives the bidirectional threaded rod 11 to rotate. Since the threads at both ends of the bidirectional threaded rod 11 are opposite in direction, and the upper ends of the two sliding seats 8 are threadedly connected to the bidirectional threaded rod 11, the first T-shaped block 14 on the outer wall of the upper end of the sliding seat 8 slides in the first T-shaped block groove 13 on the inner wall of the upper end of the support frame 6, restricting the rotation of the sliding seat 8, so that the two sliding seats 8 move synchronously towards or away from each other. Because the connecting seat mounting groove 18 on the lower surface of the sliding seat 8 is slidably connected to the connecting seat 2 on the upper end of the guide block 12, the movement of the sliding seat 8 drives the guide block 12 to move, thereby accurately adjusting the distance between the two guide blocks 12, preparing for the positioning and shearing of the silicon steel sheet. Then, the silicon steel sheet is fed into the equipment, the main body 1 of the first central column shearing machine and the second central column... The drive assembly 4 on the upper surface of the outer shell of the main body 3 of the shearing machine is activated, and its output end pushes the respective shearing blades 5 downward. Under the limiting action of the guide block 12, the silicon steel sheet is accurately placed, and the two shearing blades 5 cut the silicon steel sheet in turn to complete the processing of the central column sheet. Since the equipment adopts a double V-punch back-to-back arrangement, the silicon steel sheet can be continuously fed forward under 80% of the working conditions, passing through the two shearing areas in turn without backing up, which greatly improves the shearing efficiency. Only when processing short materials in 20% of the time is the reversing mode activated to restore the traditional reciprocating feeding. Then, when it is necessary to remove the guide block 12, rotate the rotating threaded rod sleeve 10 on the outer wall of the protective shell 9. The rotating threaded rod sleeve 10 is threadedly connected to the rotating threaded rod 15. The rotation of the rotating threaded rod sleeve 10 drives the rotating threaded rod 15 to move, thereby driving the limiting block 16 to disengage from the second limiting block groove 20 of the connecting seat 2. Then, pull the guide block 12 to remove it.

[0021] The rotating threaded sleeve 10 on the outer wall of the protective shell 9 in the limiting assembly is threadedly connected to the rotating threaded rod 15. The rotation of the rotating threaded sleeve 10 drives the rotating threaded rod 15 to move, thereby causing the limiting block 16 to disengage from the second limiting block groove 20 of the connecting seat 2. Then, the guide block 12 can be pulled to remove it. This method of disassembling the guide block 12 is simple and quick, avoiding the need for workers to use tools to disassemble the bolts one by one. It effectively improves the disassembly efficiency of the guide block 12, and at the same time improves the guiding effect and shearing quality of the silicon steel sheet.

[0022] Structural Description: The first and second central column shearing machine bodies 1 and 3 serve as the core of the equipment and are fixedly installed on the base, providing power and working space for shearing silicon steel sheets. The drive assembly 4 on the outer shell drives the shearing blade 5 to move up and down to achieve shearing processing. The two are arranged back to back to optimize the feeding process and improve efficiency. Support frame 6: It is U-shaped, with its lower end connected to the base of the two shearing machine bodies to provide stable support. It has a bidirectional threaded rod 11 that is rotatably connected inside. The upper inner wall is provided with a first T-shaped block groove 13, which lays the foundation for the installation and operation of the limit component and ensures the coordinated work of all components. Motor 7: It is the power source for the limit component, fixed on one side of the support frame 6. It drives the bidirectional threaded rod 11 to rotate through the output end, converting the rotational motion into the linear motion of the sliding seat 8, so as to realize the precise adjustment of the spacing of the guide block 12. The bidirectional threaded rod 11 is rotatably connected inside the support frame 6. The threads at both ends are opposite and are threadedly engaged with the sliding seat 8. Driven by the motor 7, the two sliding seats 8 move synchronously, thereby adjusting the spacing of the guide blocks 12 to meet the processing requirements of silicon steel sheets of different specifications. Sliding seat 8: The upper end is threadedly connected to the bidirectional threaded rod 11 and slides axially under its drive. The lower surface is provided with a connecting seat mounting groove 18 for installing the connecting seat 2. The protective shell 9 on both sides of the lower end protects the rotating threaded rod sleeve 10. The first T-shaped block 14 at the upper end cooperates with the first T-shaped block groove 13 to ensure stable and accurate movement. Guide block 12: It is L-shaped, with a fixed connecting seat 2 at the upper end, which is used to support and guide the shearing blade 5. It moves with the sliding seat 8 to ensure the accurate position of the shearing blade 5, and at the same time provides a stable installation base for it to ensure shearing accuracy. Connecting seat 2: Fixed to the upper end of guide block 12, the outer wall is slidably connected to connecting seat mounting groove 18, and the two sides are provided with second limiting block grooves 20, which cooperate with connecting seat mounting groove 18, limiting block 16, etc. to realize the installation, fixing and disassembly of shearing blade 5, which facilitates equipment maintenance and blade replacement; Protective shell 9, rotating threaded rod sleeve 10 and rotating threaded rod 15: Protective shell 9 is fixed to the lower end of sliding seat 8 to protect rotating threaded rod sleeve 10. Rotating threaded rod sleeve 10 is rotatably connected to protective shell 9 and threadedly connected to rotating threaded rod 15. Rotating rotating threaded rod sleeve 10 can drive rotating threaded rod 15 to move, thereby controlling the extension and retraction of limit block 16, realizing the fixing and loosening of connecting seat 2. First T-slot 13 and first T-block 14: First T-slot 13 is located on the upper inner wall of support frame 6, and first T-block 14 is fixed on the upper outer wall of sliding seat 8. The two work together to restrict the movement trajectory of sliding seat 8, so that it slides along the axial direction of bidirectional threaded rod 11, ensuring the smooth and accurate adjustment of guide block 12 spacing. First limiting block groove 17, second limiting block groove 20 and limiting block 16: First limiting block groove 17 is on the inner walls of both sides of the connecting seat mounting groove 18, second limiting block groove 20 is on the outer walls of both sides of the connecting seat 2, and limiting block 16 slides in the first limiting block groove 17 and can extend into the second limiting block groove 20. Through mutual cooperation, the connecting seat 2 is firmly fixed to ensure that the shearing blade 5 is stable and reliable when working. Drive assembly 4 and shearing blade 5: Drive assembly 4 is installed on the main shell of the shearing machine, and its output end is connected to the shearing blade 5 to provide shearing power and drive the shearing blade 5 to move up and down to complete the shearing of silicon steel sheets. It is the direct execution component for realizing the processing operation.

[0023] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A silicon steel sheet shearing device with double V-shaped back-to-back arrangement, comprising a first column shearing machine body (1), a second column shearing machine body (3), a support frame (6), and two shearing blades (5), characterized in that: A limit component is provided on the support frame (6); The limiting assembly includes a motor (7), two shear blades (5) and two guide blocks (12). The motor (7) is fixedly installed on the upper surface of a fixed plate on one side of the support frame (6). The lower surfaces of the two sliding seats (8) are provided with connecting seat mounting grooves (18). The support frame (6) is rotatably connected to a bidirectional threaded rod (11). The upper ends of the two sliding seats (8) are threaded to the outer wall of the bidirectional threaded rod (11). The upper ends of the two guide blocks (12) are fixedly installed with connecting seats (2). The outer walls on both sides of the two connecting seats (2) are provided with second limiting block grooves (20). Among them, the lower ends of the two sliding seats (8) are fixedly connected to the outer walls of both sides of the protective shell (9), and the outer walls of the four protective shells (9) are rotatably connected to the rotating threaded rod sleeve (10). The inner walls of the two connecting seat mounting grooves (18) are provided with the first limiting block groove (17). The four first limiting block grooves (17) are slidably connected to the inside of the four first limiting block grooves (17). The four first limiting block grooves (17) are provided with the rotating threaded rod (15). The upper inner wall of the support frame (6) is provided with two first T-shaped block grooves (13). The upper outer wall of the two sliding seats (8) is fixedly connected with two first T-shaped blocks (14). The inner wall of the connecting seat mounting groove (18) is provided with four second T-shaped block grooves (19). The four T-shaped blocks on the outer wall of the connecting seat (2) are slidably connected to the inside of the corresponding second T-shaped block grooves (19).

2. The silicon steel sheet shearing device with a double V-punch back-to-back arrangement according to claim 1, characterized in that: The support frame (6) is U-shaped, and the lower ends of the support frame (6) are fixedly connected to the upper surface of the base of the first middle column shearing machine body (1) and the second middle column shearing machine body (3); Both guide blocks (12) are L-shaped, and the output end of the motor (7) extends into the interior of the support frame (6) and is fixedly connected to one end of the bidirectional threaded rod (11).

3. The silicon steel sheet shearing device with a double V-punch back-to-back arrangement according to claim 1, characterized in that: The outer walls of the two connecting seats (2) are slidably connected to the interior of the corresponding connecting seat mounting groove (18), and the ends of the four limiting blocks (16) near the second limiting block groove (20) are all slidably extended into the interior of the connecting seat mounting groove (18) and are slidably connected to the interior of the corresponding second limiting block groove (20). Among them, the ends of the four rotating threaded rods (15) near the limiting block (16) are respectively fixedly connected to the outer wall of the corresponding limiting block (16).

4. The silicon steel sheet shearing device with a double V-punch back-to-back arrangement according to claim 1, characterized in that: The ends of the four rotating threaded rod sleeves (10) near the limiting block (16) all rotate and extend into the interior of the first limiting block groove (17), and the ends of the four rotating threaded rods (15) away from the limiting block (16) are respectively connected to the internal threads of the corresponding rotating threaded rod sleeves (10). The outer walls of the four first T-shaped blocks (14) are slidably connected to the interior of the corresponding first T-shaped block groove (13).

5. The silicon steel sheet shearing device with a double V-punch back-to-back arrangement according to claim 1, characterized in that: The first and second central column shearing machine bodies (1 and 3) are both fixedly installed on the base; Among them, the upper surface of the outer shell of the first middle column shearing machine body (1) and the second middle column shearing machine body (3) are both equipped with drive components (4).

6. The silicon steel sheet shearing device with a double V-punch back-to-back arrangement according to claim 5, characterized in that: The output ends of the two drive components (4) slide and extend into the interior of the first and second central column shearing machine bodies (1 and 3) respectively and are fixedly connected to the upper surface of the corresponding shearing blades (5); The limiting component is located between the main body (1) of the first central column shearing machine and the connecting seat (2), and the shearing area of ​​the main body (1) of the first central column shearing machine is opposite to the shearing area of ​​the connecting seat (2).