Cutting system for angle steel

Abstract

The utility model discloses a cutting system for angle steel, which comprises a cutting device, a distance measuring device and a conveying device, the distance measuring device and the conveying device are located on the front side and the rear side of the cutting device, the cutting device comprises a base, a supporting seat, a pressing plate, a support, a magnetic reset mechanism, a driving device and a punch, the lower end of the support is installed on the base, and the driving device is fixed on the top of the support. The output end of the driving device faces downwards and is connected with the punch, the pressing plate and the supporting base are sequentially arranged below the punch, the middle of the pressing plate is sunken upwards to form a cutting cavity matched with the outer side of angle steel, a cutting knife is installed in the cutting cavity, the middle of the supporting base protrudes upwards to form a supporting block matched with the inner side of the angle steel, and the pressing plate extends towards the two sides to form extending plates. The magnetic reset mechanism is arranged between the extension plate and the base and used for driving the pressing plate to reset after angle steel is cut so as to achieve continuous angle steel cutting. The angle steel cutting device is high in cutting efficiency, reduces labor intensity of workers, is even in angle steel size cutting, and facilitates later use of angle steel.

Description

Technical Field

[0001] The utility model relates to the technical field of angle steel cutting, in particular to a cutting system for angle steel. Background Art

[0002] Angle steel is a commonly used profile in the field of power tower manufacturing. During the production process of angle steel, it needs to be cut to size. The existing angle steel cutting method is mostly done manually, which has high labor intensity and low cutting efficiency. The end face of the angle steel after cutting is uneven, which affects the subsequent normal installation of the angle steel. Utility Model Content

[0003] The utility model aims to provide a cutting system for angle steel, which cuts the angle steel mechanically, has high cutting efficiency, reduces manual labor intensity, cuts the angle steel to uniform size, and is more conducive to the later use of the angle steel.

[0004] In order to solve the above technical problems, the utility model adopts the following solutions:

[0005] A cutting system for angle steel comprises a cutting device and a distance measuring device and a conveying device located at the front and rear sides of the cutting device. The distance measuring device is used to measure the length of the cut angle steel, and the conveying device is used to convey the strip angle steel to the cutting device for cutting. The cutting device comprises a base, a support seat, a pressure plate, a bracket, a magnetic reset mechanism, a driving device and a punch. The lower end of the bracket is installed on the base, and the driving device is fixed to the top of the bracket. The output end of the driving device faces downward and is connected to the punch. Below the punch are the pressure plate and the support seat in sequence. The middle part of the pressure plate is recessed upward to form a cutting cavity adapted to the outer side of the angle steel, and a cutting knife is installed in the cutting cavity. The middle part of the support seat protrudes upward to form a support block adapted to the inner side of the angle steel. The pressure plate extends to both sides to form an extension plate. The magnetic reset mechanism is arranged between the extension plate and the base to drive the pressure plate to reset after cutting the angle steel to achieve continuous cutting of the angle steel.

[0006] Due to the adoption of the above technical solution, the distance measuring device is installed on the discharge side (front side) of the cutting device. Its main function is to measure the length of the angle steel to be cut. By measuring, it can be ensured that the required angle steel length can be obtained each time the cutting is performed. The conveying device is installed on the feed side (rear side) of the cutting device. The conveying device is responsible for conveying the strip angle steel from one end to the cutting device. The conveying device usually has a smooth and continuous conveying capacity to ensure that the angle steel remains stable during the cutting process. The base serves as the basic supporting structure of the entire cutting device to ensure that all components can be stably installed on it. The middle part of the support seat bulges upward to form a support block that matches the inner side of the angle steel. This support block provides stable support for the angle steel during the cutting process. The pressure plate is located below the punch, and the middle part is concave upward to form a cutting cavity that matches the outer side of the angle steel. A cutting knife is installed in the cutting chamber. When the driving device drives the punch to press down, the punch moves downward and contacts the pressure plate, driving the pressure plate downward, and the pressure plate moves downward and closes with the support seat, thereby realizing the cutting of the angle steel. After the strip cutting is completed, the magnetic reset mechanism will play a role, driving the pressure plate to reset, thereby realizing the separation of the pressure plate and the support seat, so as to unload and carry out the next cutting. This reset method ensures the efficiency and stability of continuous cutting. At the same time, compared with the spring reset mechanism, the magnetic reset mechanism has fatigue resistance and needs to be replaced after long-term use, and the service life is short. The magnetic reset mechanism is reset by repulsive force, and there is no fatigue. The driving device is fixed on the top of the bracket, and its output end faces downward and is connected to the punch. The driving device provides power to enable the punch to move up and down to complete the cutting action. Through the coordinated work of the entire system, the angle steel cutting system can realize efficient and accurate angle steel cutting, with low labor intensity, greatly improving production efficiency and product quality, and the end face of the cut angle steel is relatively flat, which is conducive to the later use of angle steel and improves the installation efficiency of power towers.

[0007] Optionally, the magnetic reset mechanism includes a first magnetic block and a second magnetic block, the first magnetic block is fixed to the bottom surface of the extension plate, the second magnetic block is fixed to the base and aligned with the first magnetic block, the first magnetic block and the second magnetic block have the same polarity and are located outside the support seat.

[0008] Optionally, in a free state, there is a distance between the first magnetic block and the second magnetic block.

[0009] Optionally, a guide assembly is also provided on the bottom surface of the extension plate, and the guide assembly is located on the outside of the first magnetic block. The guide assembly includes a sleeve and a guide column. The upper end of the sleeve is fixed to a position adjacent to the edge of the bottom surface of the extension plate, the lower end of the guide column is fixed on the base and corresponds to the sleeve, and the upper end of the guide column is inserted into the sleeve and can slide relative to the sleeve in the vertical direction.

[0010] Optionally, the lower end of the sleeve has a sealing plate, the upper end of the guide column passes through the sealing plate and extends to the interior of the sleeve, and the upper end of the guide column is provided with a limiting plate located in the sleeve.

[0011] Optionally, in a free state, there is a distance between the limiting plate and the top end of the sleeve.

[0012] Optionally, in a free state, the pressing plate and the punch are separated from each other, and the supporting plate and the punch are coaxially arranged.

[0013] Optionally, the conveying device is a conveyor belt, on which strip angle steel is placed, and the front end of the angle steel is conveyed into the cutting chamber.

[0014] Optionally, the distance measuring device includes a bottom box, a vertical pole and a pressure sensor. The lower end of the vertical pole is connected to the top surface of the bottom box. A baffle is provided on the top of the vertical pole. The pressure sensor is installed on the side of the baffle opposite to the cutting device. The pressure sensor corresponds to the front end of the angle steel. Concrete is filled in the bottom box to ensure the stability of the distance measuring device.

[0015] Optionally, the driving device is a cylinder.

[0016] The utility model has the beneficial effects:

[0017] 1. In the utility model, the front end of the angle steel is conveyed into the cutting chamber by the conveying device, and the angle steel is placed on the supporting block of the supporting seat. After the accurate length to be cut is measured by the distance measuring device, the driving device is started to drive the punch downward. After the punch moves downward and contacts with the pressure plate, the pressure plate is driven downward, and the pressure plate moves downward and closes with the supporting seat, thereby realizing the cutting of the angle steel. After the cutting is completed, the magnetic reset mechanism will play a role, driving the pressure plate to reset, thereby realizing the separation of the pressure plate and the supporting seat, so as to unload the material and carry out the next cutting. This reset method ensures the efficiency and stability of continuous cutting. At the same time, compared with the spring reset mechanism, the magnetic reset mechanism has fatigue resistance in the spring, needs to be replaced after long-term use, and has a short service life. The magnetic reset mechanism realizes reset by repulsive force, and there is no fatigue. The driving device is fixed to the top of the bracket, and its output end faces downward and is connected to the punch. The driving device provides power so that the punch can move up and down to complete the cutting action. Through the coordinated work of the entire system, the angle steel cutting system can achieve efficient and precise angle steel cutting with low labor intensity, greatly improving production efficiency and product quality. The end face of the cut angle steel is relatively smooth, which is conducive to the later use of the angle steel and improves the installation efficiency of the power tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 is a schematic diagram of the structure of the cutting device;

[0020] Figure 3 The cross-sectional structure diagram of the guide component.

[0021] Figure markings: 1-base, 2-conveying device, 3-guide column, 4-second magnetic block, 5-sleeve, 6-first magnetic block, 7-bracket, 8-punch, 9-pressing plate, 10-support seat, 11-angle steel, 12-pressure sensor, 13-baffle, 14-vertical pole, 15-bottom box, 16-concrete, 17-driving device, 18-cutting chamber, 19-support block, 20-extension plate, 21-limiting plate, 22-sealing plate. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0023] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0025] A cutting system for angle steel, comprising a cutting device and a distance measuring device and a conveying device 2 located at the front and rear sides of the cutting device, wherein the distance measuring device is used to measure the length of the cut angle steel 11, and the conveying device 2 is used to convey the strip angle steel 11 to the cutting device for cutting. The cutting device comprises a base 1, a support seat 10, a pressing plate 9, a bracket 7, a magnetic resetting mechanism, a driving device 17 and a punch 8, wherein the lower end of the bracket 7 is mounted on the base 1, the driving device 17 is fixed to the top of the bracket 7, the output end of the driving device 17 faces downward and is connected to the punch 8, and the pressing plate 9 and the support seat 10 are arranged below the punch 8 in sequence. The middle part of the pressing plate 9 is recessed upward to form a cutting cavity 18 adapted to the outer side of the angle steel 11, and a cutting knife is installed in the cutting cavity 18. The middle part of the support seat 10 protrudes upward to form a support block 19 adapted to the inner side of the angle steel 11. The pressing plate 9 extends to both sides to form an extension plate 20. The magnetic reset mechanism is arranged between the extension plate 20 and the base 1, which is used to drive the pressing plate 9 to reset after cutting the angle steel 11 to achieve continuous cutting of the angle steel 11.

[0026] In this embodiment, Figure 1 As shown, the distance measuring device is installed on the discharge side (front side) of the cutting device, and its main function is to measure the length of the angle steel 11 to be cut. By measuring, it can be ensured that the required length of the angle steel 11 can be obtained each time the cutting is performed. The conveying device 2 is installed on the feed side (rear side) of the cutting device. The conveying device 2 is responsible for conveying the strip angle steel 11 from one end to the cutting device. The conveying device 2 usually has a stable and continuous conveying capacity to ensure that the angle steel 11 remains stable during the cutting process. The base 1 serves as the basic supporting structure of the entire cutting device to ensure that all components can be stably installed on it, as shown in FIG. Figure 2As shown, the middle part of the support seat 10 bulges upward to form a support block 19 adapted to the inner side of the angle steel 11. The bulge is an inverted V-shape with an angle of 90°. The support block 19 provides stable support for the angle steel 11 during the cutting process. The pressing plate 9 is located below the punch 8, and the middle part is recessed upward to form a cutting cavity 18 adapted to the outer side of the angle steel 11. The cutting cavity 18 is V-shaped with an angle of 90°. A cutting knife is installed in the cutting cavity 18. When the driving device 17 drives the punch 8 to press down, the punch 8 moves downward and contacts with the pressing plate 9, driving the pressing plate 9 to move downward. The pressing plate 9 moves downward and closes with the support seat 10, thereby realizing the cutting of the angle steel 11. After the cutting is completed, the magnetic force The reset mechanism will play a role, driving the pressure plate 9 to reset, thereby realizing the separation of the pressure plate 9 and the support seat 10, so as to unload and carry out the next cutting. This reset method ensures the efficiency and stability of continuous cutting. At the same time, compared with the spring reset mechanism, the magnetic reset mechanism has fatigue resistance, needs to be replaced after long-term use, and has a short service life. The magnetic reset mechanism is reset by repulsive force, and there is no fatigue. The drive device 17 is fixed to the top of the bracket 7, and its output end is downward and connected to the punch 8. The drive device 17 is a cylinder, and the drive device 17 provides power for the punch 8, so that the punch 8 can move up and down to complete the cutting action. Through the coordinated work of the entire system, the angle steel 11 cutting system can realize efficient and accurate angle steel 11 cutting, with low labor intensity, greatly improving production efficiency and product quality, and the end face of the cut angle steel 11 is relatively flat, which is conducive to the later use of the angle steel 11 and improves the installation efficiency of the power tower.

[0027] Furthermore, the magnetic reset mechanism includes a first magnetic block 6 and a second magnetic block 4. The first magnetic block 6 is fixed to the bottom surface of the extension plate 20, and the second magnetic block 4 is fixed to the base 1 and aligned with the first magnetic block 6. The first magnetic block 6 and the second magnetic block 4 have the same polarity and are located outside the support base 10.

[0028] Furthermore, in a free state, there is a distance between the first magnetic block 6 and the second magnetic block 4 .

[0029] Specifically, Figure 2As shown, the magnetic reset mechanism is composed of a first magnetic block 6 and a second magnetic block 4. The two magnetic blocks interact with each other through magnetic force to realize the automatic reset function of the pressure plate 9. The first magnetic block 6: This magnetic block is fixed to the bottom surface of the extension plate 20. When the pressure plate 9 moves downward for cutting under the action of the punch 8, the first magnetic block 6 will move accordingly. Since the first magnetic block 6 is magnetic, it will interact with the second magnetic block 4. The second magnetic block 4: This magnetic block is fixed on the base 1 and is aligned with the first magnetic block 6 in position. The installation position of the second magnetic block 4 ensures that the magnetic force between it and the first magnetic block 6 can be effectively carried out. The first magnetic block 6 and the second magnetic block 4 have the same polarity, which means that there is a repulsive force between them. Since the two magnetic blocks are located on the outside of the support seat 10, after the pressure plate 9 goes down to cut the angle steel 11 and the punch 8 is on, the repulsive force between the first magnetic block 6 and the second magnetic block 4 can effectively push the pressure plate 9 back to its original position to realize the reset function. In a free state (i.e. when there is no external force), a certain distance is maintained between the first magnetic block 6 and the second magnetic block 4. This distance is set to ensure that during the cutting process, the magnetic blocks will not interfere with or damage each other due to being too close. At the same time, this distance also ensures that the pressing plate 9 can move downward smoothly when the punch 8 is pressed down. Through the design of this magnetic reset mechanism, the cutting system can automatically reset the pressing plate 9 after completing a cut, thereby achieving continuous cutting of the angle steel 11. This design not only improves the cutting efficiency, but also reduces the difficulty of operation, making the entire cutting process more convenient and efficient. At the same time, the repulsive force between the magnetic blocks is used to achieve reset. Compared with the existing spring reset, the repulsive force of the magnetic blocks does not have fatigue resistance and has a longer service life.

[0030] Furthermore, a guide assembly is provided on the bottom surface of the extension plate 20, and the guide assembly is located on the outside of the first magnetic block 6. The guide assembly includes a sleeve 5 and a guide column 3. The upper end of the sleeve 5 is fixed to a position adjacent to the edge of the bottom surface of the extension plate 20, and the lower end of the guide column 3 is fixed on the base 1 and corresponds to the sleeve 5. The upper end of the guide column 3 is inserted into the sleeve 5 and can slide relative to the sleeve 5 in the vertical direction.

[0031] Furthermore, the sleeve 5 has a sealing plate 22 at the lower end, and the upper end of the guide column 3 extends through the sealing plate 22 to the inside of the sleeve 5 . The upper end of the guide column 3 is provided with a limiting plate 21 located inside the sleeve 5 .

[0032] Furthermore, in the free state, there is a distance between the limiting plate 21 and the top end of the sleeve 5 .

[0033] Specifically, Figure 2 and Figure 3As shown, adding a guide assembly to the bottom surface of the extension plate 20 further enhances the stability and accuracy of the pressure plate 9 during the resetting process. The upper end of the sleeve 5 of the guide assembly is fixed to the adjacent edge position of the bottom surface of the extension plate 20, so as to ensure that when the pressure plate 9 moves, the sleeve 5 can move stably therewith. The main function of the sleeve 5 is to provide a sliding track for the guide column 3 to slide therein, and the lower end of the guide column 3 is fixed on the base 1, corresponding to the sleeve 5. When the pressure plate 9 moves under the action of magnetic force or other forces, the guide column 3 will slide in the sleeve 5, playing a guiding and stabilizing role. The sealing plate 22 is arranged at the lower end of the sleeve 5, which closes the bottom of the sleeve 5 so that the guide column 3 can pass through the sealing plate 22 and extend into the sleeve 5. The existence of the sealing plate 22 also enhances the structural strength of the sleeve 5. The limit plate 21 is installed at the upper end of the guide column 3 and is located inside the sleeve 5. The function of the limit plate 21 is to limit the sliding range of the guide column 3 in the sleeve 5 to prevent it from falling out of the sleeve 5. In the free state, a certain distance is maintained between the limit plate 21 and the top of the sleeve 5. The setting of this distance ensures that the guide column 3 has enough sliding space in the sleeve 5, so that the pressure plate 9 can move up and down smoothly. At the same time, this distance also avoids the resistance or friction caused by the contact between the limit plate 21 and the top of the sleeve 5 during the resetting process. Through the design of the guide component, the stability and accuracy of the pressure plate 9 during the resetting process are greatly improved. The sliding of the guide column 3 in the sleeve 5 ensures the linear movement of the pressure plate 9, and the existence of the limit plate 21 and the sealing plate 22 enhances the stability and safety of the structure. This design makes the entire cutting system more reliable and efficient during the continuous cutting process.

[0034] Furthermore, in the free state, the pressing plate 9 and the punch 8 are separated from each other, and the support plate and the punch 8 are coaxially arranged.

[0035] Specifically, in a free state, that is, when there is no external force or the drive device 17 is not activated, the separation state of the pressure plate 9 and the punch 8 ensures that the two will not interfere with each other or generate unnecessary friction before cutting, which can reduce wear and extend the service life of the equipment. Secondly, the coaxial setting of the support plate and the punch 8 means that they share the same axis. This coaxial design helps to ensure the accuracy and precision of the cutting. When the punch 8 is pressed down for cutting, since it is coaxial with the support plate, it can ensure that the cutting force is applied in the correct direction, thereby obtaining a more accurate and consistent cutting result. In addition, the support The middle part of the support plate protrudes upward to form a support block 19 that fits the inner side of the angle steel 11, which provides stable support for the angle steel 11. When the punch 8 is pressed down, the angle steel 11 is fixed between the support block 19 and the pressure plate 9, which helps prevent the angle steel 11 from moving or deforming during the cutting process, further improving the cutting accuracy. In summary, the separation of the pressure plate 9 and the punch 8 in the free state and the coaxial setting of the support plate and the punch 8 together ensure the efficient, stable and accurate operation of the cutting system. This design enables the system to maintain high performance and long life during continuous cutting, thereby improving production efficiency and product quality.

[0036] Furthermore, the conveying device 2 is a conveyor belt, on which the strip angle steel 11 is placed, and the front end of the angle steel 11 is conveyed into the cutting chamber 18 .

[0037] Specifically, the conveyor belt is a continuous conveying device, which is a commonly used device. It can continuously convey materials on a certain conveying line, and has the characteristics of large conveying capacity, long conveying distance, and smooth conveying. On the conveyor belt, the strip angle steel 11 is placed and fixed stably to ensure that no sliding or deviation occurs during the conveying process. The conveyor belt conveys the angle steel 11 forward at a certain speed until the front end of the angle steel 11 is accurately conveyed to the cutting chamber 18 of the cutting device. In order to ensure that the angle steel 11 can be accurately conveyed to the cutting chamber 18 for cutting, the end of the conveyor belt and the cutting chamber 18 of the cutting device need to be accurately docked. This docking design ensures that the position and angle of the angle steel 11 on the conveyor belt match the cutting knife and the support block 19 in the cutting chamber 18, thereby achieving precise cutting. By using the conveyor belt as the conveying device 2, the cutting system can realize efficient, continuous and smooth conveying of the angle steel 11, greatly improving the production efficiency and cutting accuracy. At the same time, the stability and reliability of the conveyor belt also ensure the smooth progress of the entire cutting process.

[0038] Furthermore, the distance measuring device includes a bottom box 15, a vertical pole 14 and a pressure sensor 12. The lower end of the vertical pole 14 is connected to the top surface of the bottom box 15. A baffle 13 is provided at the top of the vertical pole 14. The pressure sensor 12 is installed on the side of the baffle 13 opposite to the cutting device. The pressure sensor 12 corresponds to the front end of the angle steel 11. Concrete 16 is filled in the bottom box 15 to ensure the stability of the distance measuring device.

[0039] Specifically, Figure 1 As shown, the bottom box 15 serves as the foundation of the entire distance measuring device and provides a stable support. Concrete 16 is filled in the bottom box 15, which is mainly to increase the weight and stability of the bottom box 15. The presence of concrete 16 enables the bottom box 15 to better resist external vibration and impact, thereby ensuring the stability and measurement accuracy of the distance measuring device. The bottom box 15 can also be directly fixed to the ground by bolts. The lower end of the vertical pole 14 is connected to the top surface of the bottom box 15 to ensure the verticality and stability of the vertical pole 14. A baffle 13 is provided at the top of the vertical pole 14. This baffle 13 provides an installation position for the pressure sensor 12. The pressure sensor 12 is installed on the side of the baffle 13 opposite to the cutting device and is connected to the front end of the angle steel 11 Correspondingly, this design enables the angle steel 11 to directly contact the sensor during the transmission process. The pressure sensor 12 is a device that can sense pressure. When the conveying device 2 drives the angle steel 11 to move toward the baffle 13, when the front end of the angle steel 11 presses against the pressure sensor 12, the sensor will be subjected to pressure, thereby generating an electrical signal. This electrical signal can be transmitted to the controller of the system. The controller receives the signal and controls the conveying device 2 to stop. At this time, the distance between the baffle 13 and the cutting knife is the cutting length of the angle steel 11. After the belt is cut, the pressure plate 9 is reset, and the controller sends a start command to the conveying device 2 again to continue to drive the angle steel 11 forward. This reciprocating process achieves continuous and precise cutting. In summary, the distance measuring device realizes accurate measurement of the length of the angle steel 11 by combining the characteristics of the bottom box 15, the vertical pole 14 and the pressure sensor 12. This design not only improves production efficiency, but also reduces measurement errors, providing reliable data support for the cutting of the angle steel 11.

[0040] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.

Claims

1. A cutting system for angle steel, characterized in that: The invention comprises a cutting device and a distance measuring device and a conveying device (2) located at the front and rear sides of the cutting device, wherein the distance measuring device is used to measure the length of the angle steel (11) to be cut, and the conveying device (2) is used to convey the strip angle steel (11) to the cutting device for cutting. The cutting device comprises a base (1), a support seat (10), a pressing plate (9), a bracket (7), a magnetic resetting mechanism, a driving device (17) and a punch (8), wherein the lower end of the bracket (7) is mounted on the base (1), the driving device (17) is fixed to the top of the bracket (7), the output end of the driving device (17) faces downward and is connected to the punch (8), and the pressing plate (9) and the support seat (10) are arranged below the punch (8) in sequence. The middle part of the pressing plate (9) is recessed upward to form a cutting cavity (18) adapted to the outer side of the angle steel (11), a cutting knife is installed in the cutting cavity (18), the middle part of the support seat (10) is protruded upward to form a supporting block (19) adapted to the inner side of the angle steel (11), the pressing plate (9) is extended to both sides to form an extension plate (20), and a magnetic reset mechanism is arranged between the extension plate (20) and the base (1) to drive the pressing plate (9) to reset after cutting the angle steel (11) so as to achieve continuous cutting of the angle steel (11).

2. A cutting system for angle steel according to claim 1, characterized in that: The magnetic resetting mechanism comprises a first magnetic block (6) and a second magnetic block (4); the first magnetic block (6) is fixed to the bottom surface of the extension plate (20); the second magnetic block (4) is fixed to the base (1) and aligned with the first magnetic block (6); the first magnetic block (6) and the second magnetic block (4) have the same polarity and are located outside the support seat (10).

3. A cutting system for angle steel according to claim 2, characterized in that: In a free state, there is a distance between the first magnetic block (6) and the second magnetic block (4).

4. A cutting system for angle steel according to claim 1, characterized in that: The bottom surface of the extension plate (20) is also provided with a guide assembly, which is located outside the first magnetic block (6). The guide assembly comprises a sleeve (5) and a guide column (3). The upper end of the sleeve (5) is fixed to a position adjacent to the edge of the bottom surface of the extension plate (20), the lower end of the guide column (3) is fixed to the base (1) and corresponds to the sleeve (5), and the upper end of the guide column (3) is inserted into the sleeve (5) and can slide relative to the sleeve (5) in the vertical direction.

5. A cutting system for angle steel according to claim 4, characterized in that: The lower end of the sleeve (5) is provided with a sealing plate (22), the upper end of the guide column (3) passes through the sealing plate (22) and extends into the interior of the sleeve (5), and the upper end of the guide column (3) is provided with a limiting plate (21) located inside the sleeve (5).

6. A cutting system for angle steel according to claim 5, characterized in that: In a free state, a distance exists between the limiting plate (21) and the top end of the sleeve (5).

7. A cutting system for angle steel according to claim 1, characterized in that: In a free state, the pressing plate (9) and the punch (8) are separated from each other, and the supporting plate and the punch (8) are coaxially arranged.

8. A cutting system for angle steel according to claim 1, characterized in that: The conveying device (2) is a conveyor belt, on which a strip angle steel (11) is placed, and the front end of the angle steel (11) is conveyed into the cutting chamber (18).

9. A cutting system for angle steel according to claim 1, characterized in that: The distance measuring device comprises a bottom box (15), a vertical pole (14) and a pressure sensor (12); the lower end of the vertical pole (14) is connected to the top surface of the bottom box (15); a baffle (13) is provided at the top of the vertical pole (14); the pressure sensor (12) is installed on a side of the baffle (13) opposite to the cutting device; the pressure sensor (12) corresponds to the front end of the angle steel (11); and concrete (16) is filled in the bottom box (15) to ensure the stability of the distance measuring device.

10. A cutting system for angle steel according to claim 1, characterized in that: The driving device (17) is a cylinder.

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