Bending device for heat-resistant steel production

Abstract

The utility model relates to the field of heat -resisting steel production, and disclose a kind of bending device for heat -resisting steel production, including bottom plate and C-shaped support, the top surface of bottom plate is fixedly connected with two C-shaped supports, set in the steel structure feeding structure between two C-shaped supports, the steel structure feeding structure includes feeding translation subassembly, heating module and electromagnet, heating module and electromagnet are installed on feeding translation subassembly, set in the support plate of two C-shaped support side away from bottom plate, the fixed connection of one side of support plate and C-shaped support, set on the bending die assembly of support plate, the lower die seat removal structure between two C-shaped supports is set, through integrated automation feeding, accurate heating, efficient bending and synchronous heat dissipation function, the linkage cooperation of feeding positioning and heating process is realized, the local accurate heating of bending position is realized by independently adjustable heating module, avoid the performance decline caused by steel structure overall heating.

Description

Technical Field

[0001] This utility model relates to the field of heat-resistant steel production, specifically a bending device for heat-resistant steel production. Background Technology

[0002] Heat-resistant steel is widely used in high-end equipment manufacturing fields such as aerospace, petrochemical, and energy power due to its excellent oxidation resistance, creep resistance and mechanical stability in high-temperature environments. In the production process of heat-resistant steel components, bending is the core process to achieve its complex shape. However, heat-resistant steel itself has characteristics such as high strength at high temperatures, poor plasticity at room temperature, easy cracking during bending and large springback.

[0003] Existing bending devices rely heavily on manual labor or single mechanical structures for the feeding process, and lack coordination with the heating process. They require handling, positioning, and preheating, which takes a long time for positioning and waste time waiting for heating, resulting in a long processing cycle, high labor intensity, and safety hazards. The heating modules are mostly integral, making it difficult to achieve precise local heating of heat-resistant steel of different grades and thicknesses. Moreover, the fixed position or easy displacement can easily cause coarse grains, decreased mechanical properties, bending cracks, and angle deviations. Therefore, we propose a bending device for the production of heat-resistant steel. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a bending device for the production of heat-resistant steel, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a bending device for heat-resistant steel production, comprising a base plate and a C-shaped bracket, wherein two C-shaped brackets are fixedly connected to the top surface of the base plate, the two C-shaped brackets are respectively close to both sides of the base plate, one side of the two C-shaped brackets is fixedly connected to the base plate, and the open ends of the two C-shaped brackets are opposite to each other. The steel feeding structure is set between the two C-shaped brackets, and the steel feeding structure is on the top surface of the base plate; The steel structure loading structure includes a loading translation component, a heating module and an electromagnet, with the heating module and electromagnet installed on the loading translation component; A support plate is installed on the side of the two C-shaped brackets facing away from the base plate. One side of the support plate is fixedly connected to the C-shaped bracket. The support plate is located on one side of the steel structure loading structure. A bending die assembly is disposed on the support plate, and the bending die assembly is located between the two C-shaped brackets; The lower mold base removal structure is disposed between the two C-shaped brackets, and the lower mold base removal structure corresponds to the bending mold assembly.

[0006] Preferably, the feeding translation assembly includes a motor, a lead screw, a slider, and a limiting rod. The mounting surfaces of the output shafts of the two motors are fixedly connected to the outer side of the two C-shaped brackets. The two motors are on the same side of the base plate. The output shafts of the motors pass through the C-shaped brackets and are rotatably connected to them. One end of the output shaft of each motor is connected to the lead screw via a coupling. The other end of the lead screw is rotatably connected to the other side of the C-shaped bracket. One side of the slider has a threaded hole. The two sliders are respectively sleeved on the two lead screws. One side of each slider is fixedly connected to a limiting rod.

[0007] Preferably, each of the two C-shaped brackets has a through-hole on its opposite side, the through-hole corresponding to the lead screw, and the end of the limiting rod away from the slider passes through the through-hole and is slidably engaged with the through-hole.

[0008] Preferably, the feeding translation component further includes connecting plates. Each of the limiting rods is fixedly connected to a connecting plate on the side facing away from the slider. One connecting plate is connected to the heating module on the side facing away from the limiting rod, and the other connecting plate is connected to the electromagnet on the side facing away from the limiting rod. The electromagnet is above the heating module, and the heating surface of the heating module is opposite to the magnetic surface of the electromagnet.

[0009] Preferably, the bending die assembly includes a hydraulic cylinder, an upper die body, and a lower die base. One side of the hydraulic cylinder body is fixedly connected to the side of the support plate opposite to the C-shaped bracket. One end of the piston rod of the hydraulic cylinder passes through the support plate and is fixedly connected to the upper die body. The lower die base is placed on the top surface of the base plate and is located on one side of the electromagnet.

[0010] Preferably, the lower mold base removal structure includes a second motor, a second lead screw, a second slider, and a second limiting rod. The mounting surfaces of the output shafts of the two second motors are fixedly connected to the outer side of the two C-shaped brackets. The two second motors are on the same side of the base plate and below the first motor. The output shafts of the second motors pass through the C-shaped brackets and are rotatably connected to them. One end of the output shaft of each second motor is connected to the second lead screw via a coupling. The other end of the second lead screw is rotatably connected to the other side of the C-shaped bracket. One side of the second slider has a threaded hole. The two second sliders are respectively sleeved on the two second lead screws. One side of each second slider is fixedly connected to a second limiting rod.

[0011] Preferably, each of the two C-shaped brackets has a through-hole 2 on its opposite side, the through-hole 2 corresponding to the lead screw 2, the end of the limiting rod 2 away from the slider 2 passes through the through-hole 2 and is slidably engaged with the through-hole 2, and the ends of the two limiting rods 2 passing through the through-hole 2 are fixedly connected to the two sides of the lower mold base.

[0012] Preferably, fans are installed on the opposite sides of both C-shaped brackets, with the fans on the side of the upper mold body away from the electromagnet and on both sides of the lower mold base.

[0013] Compared with the prior art, this utility model provides a bending device for the production of heat-resistant steel, which has the following beneficial effects: This bending device for producing heat-resistant steel integrates automated feeding, precise heating, efficient bending, and synchronous heat dissipation. It achieves coordinated feeding and heating processes, effectively reducing safety hazards and labor intensity caused by manual operation. At the same time, the independently adjustable heating module enables precise local heating of the bending area, avoiding performance degradation caused by overall heating of the steel structure. Combined with the flexibly movable lower die base and the linked heat dissipation structure, it significantly shortens the single processing cycle and significantly improves bending accuracy and product quality stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a cross-sectional schematic diagram of the bending mold assembly of this utility model; Figure 4 This is a cross-sectional schematic diagram of the lower mold base removal structure of this utility model; Figure 5 This is a cross-sectional schematic diagram of the steel structure feeding structure of this utility model.

[0015] In the diagram: 1. Base plate; 2. C-shaped bracket; 3. Support plate; 4. Hydraulic cylinder; 5. Upper mold body; 6. Motor 1; 7. Lead screw 1; 8. Slider 1; 9. Slot hole 1; 10. Slider 2; 11. Lead screw 2; 12. Slot hole 2; 13. Connecting plate; 14. Heating module; 15. Electromagnet; 16. Limiting rod 1; 17. Fan; 18. Motor 2; 19. Limiting rod 2; 20. Lower mold base. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5A bending device for producing heat-resistant steel includes a base plate 1 and C-shaped brackets 2. Two C-shaped brackets 2 are fixedly connected to the top surface of the base plate 1. The two C-shaped brackets 2 are respectively close to the two sides of the base plate 1. One side of the two C-shaped brackets 2 is fixedly connected to the base plate 1, and the open ends of the two C-shaped brackets 2 are opposite to each other. The steel feeding structure is set between the two C-shaped supports 2, and the steel feeding structure is on the top surface of the base plate 1. The steel structure loading structure includes a loading translation component, a heating module 14 and an electromagnet 15. The heating module 14 and the electromagnet 15 are installed on the loading translation component. The support plate 3 is set on the side of the two C-shaped brackets 2 away from the bottom plate 1. One side of the support plate 3 is fixedly connected to the C-shaped bracket 2. The support plate 3 is on one side of the steel structure loading structure. The bending die assembly is set on the support plate 3, and the bending die assembly is between the two C-shaped brackets 2; The lower mold base removal structure is located between the two C-shaped brackets 2, and the lower mold base removal structure corresponds to the bending mold assembly.

[0018] Furthermore, the feeding translation assembly includes a motor 6, a lead screw 7, a slider 8, and a limiting rod 16. The mounting surfaces of the output shafts of the two motors 6 are fixedly connected to the outer side of the two C-shaped brackets 2. The two motors 6 are on the same side of the base plate 1. The output shafts of the motors 6 pass through the C-shaped brackets 2 and are rotatably connected to them. One end of the output shaft of each motor 6 is connected to the lead screw 7 via a coupling. The other end of the lead screw 7 is rotatably connected to the other side of the C-shaped bracket 2. One side of the slider 8 has a threaded hole. The two sliders 8 are respectively sleeved on the two lead screws 7. The limiting rod 16 is fixedly connected to one side of each slider 8. The motor 6 is used to drive the lead screw 7 to rotate, and the slider 8 slides on the lead screw 7. The limiting rod 16 is used to connect the heating module 14 and the electromagnet 15.

[0019] Furthermore, each of the two C-shaped brackets 2 has a through-hole 9 on its opposite side. The through-hole 9 corresponds to the lead screw 7. The end of the limiting rod 16 away from the slider 8 passes through the through-hole 9 and is slidably engaged with the through-hole 9. The engagement between the through-hole 9 and the limiting rod 16 prevents the slider 8 from rotating with the lead screw 7, and instead allows it to slide on the lead screw 7.

[0020] Furthermore, the feeding and translation assembly also includes connecting plates 13. Each of the sides of the limiting rod 16 facing away from the slider 8 is fixedly connected to a connecting plate 13. One connecting plate 13 is connected to the heating module 14 on the side facing away from the limiting rod 16, and the other connecting plate 13 is connected to the electromagnet 15 on the side facing away from the limiting rod 16. The electromagnet 15 is above the heating module 14, and the heating surface of the heating module 14 is opposite to the magnetic attraction surface of the electromagnet 15. The connecting plate 13 is used to connect the heating module 14 and the electromagnet 15. The electromagnet 15 is connected to the steel structure by electromagnetic attraction on the upper side of the steel structure. The heating module 14 heats the steel structure. The corresponding heating point on the heating module 14 is activated to heat the part that needs to be bent. The heating module 14 and the electromagnet 15 can move asynchronously on the C-shaped bracket 2.

[0021] Furthermore, the bending die assembly includes a hydraulic cylinder 4, an upper die body 5, and a lower die base 20. One side of the cylinder body of the hydraulic cylinder 4 is fixedly connected to the side of the support plate 3 away from the C-shaped bracket 2. One end of the piston rod of the hydraulic cylinder 4 passes through the support plate 3, and the upper die body 5 is fixedly connected to one end of the piston rod of the hydraulic cylinder 4. The lower die base 20 is placed on the top surface of the base plate 1. The lower die base 20 is on one side of the electromagnet 15. The hydraulic cylinder 4 is used to drive the upper die body 5 to rise and fall. The upper die body 5 and the lower die base 20 are used to bend the steel structure.

[0022] Furthermore, the lower mold base removal structure includes a second motor 18, a second lead screw 11, a second slider 10, and a second limiting rod 19. The mounting surfaces of the output shafts of the two second motors 18 are fixedly connected to the outer side of the two C-shaped brackets 2. The two second motors 18 are on the same side of the base plate 1 and below the first motor 6. The output shafts of the second motors 18 pass through the C-shaped brackets 2 and are rotatably connected to them. One end of the output shaft of each second motor 18 is connected to the second lead screw 11 via a coupling. The other end of the second lead screw 11 is rotatably connected to the other side of the C-shaped bracket 2. One side of the second slider 10 has a threaded hole. The two second sliders 10 are respectively sleeved on the two second lead screws 11. One side of each second slider 10 is fixedly connected to the second limiting rod 19. The second motor 18 is used to drive the second lead screw 11 to rotate, and the second slider 10 slides on the second lead screw 11. The second limiting rod 19 is used to connect the lower mold base 20.

[0023] Furthermore, each of the two C-shaped brackets 2 has a through-hole 12 on its opposite side, which corresponds to the lead screw 11. The end of the limiting rod 19 away from the slider 10 passes through the through-hole 12 and is slidably engaged with it. The ends of the two limiting rods 19 passing through the through-hole 12 are fixedly connected to the two sides of the lower mold base 20. The engagement of the through-hole 12 and the limiting rod 19 prevents the slider 10 from rotating with the lead screw 11, and instead allows it to slide on the lead screw 11.

[0024] Furthermore, fans 17 are installed on opposite sides of the two C-shaped brackets 2. The fans 17 are on the side of the upper mold body 5 away from the electromagnet 15, and on both sides of the lower mold base 20. The fans 17 are used to dissipate heat from the bent steel structure.

[0025] Structural Description: Base plate 1: It is flat and rectangular metal plate structure. It is the basic load-bearing component of the device and is used to fix the C-shaped bracket 2 and support the lower mold base 20, etc., providing a stable installation and working platform. C-shaped bracket 2: It has a “C” shaped frame structure with two symmetrically distributed pieces and opposite opening ends. It serves as the main support frame of the device and is used to install components such as the feeding and translation components, the lower mold base removal structure, and the fan 17, providing an installation carrier and motion guide for each mechanism. Support plate 3: It is a rectangular flat plate, horizontally fixed to the side of the C-shaped bracket 2 away from the base plate 1, and is used to support the hydraulic cylinder 4 of the bending mold assembly, providing stable support for the lifting and bending of the upper mold body 5. Hydraulic cylinder 4: It has a columnar structure and consists of a cylinder body and a piston rod. It serves as a bending power source and drives the upper mold body 5 to rise and fall vertically through the extension and retraction of the piston rod, providing the required pressure for bending the steel structure. Upper mold body 5: It is block-shaped or punch-shaped, and the side that cooperates with the lower mold base 20 is the forming working surface. It is installed at the end of the piston rod of the hydraulic cylinder 4 and is pressed down under the drive of the hydraulic cylinder 4, working together with the lower mold base 20 to achieve the bending and forming of the steel structure. Motor 6: It has a cylindrical shell structure and serves as the power source for the feeding and translation assembly. It drives the lead screw 7 to rotate through the output shaft, thereby moving the heating module 14 and the electromagnet 15. Lead screw 7: It is a long column with threads on the surface. Both ends are rotatably connected to C-shaped bracket 2. It rotates under the drive of motor 6, converting the rotational motion into the linear motion of slider 8. Slider 8: It is block-shaped with a threaded hole in the middle. It is sleeved on lead screw 7 and slides with lead screw 7 through threaded engagement. It is used to connect and drive limit rod 16 to move. Strip-shaped hole 9: It is a long strip-shaped through hole, which is opened on the opposite side of the C-shaped bracket 2 and corresponds to the position of lead screw 7. It allows the limiting rod 16 to pass through and slide, thereby limiting the rotation of slider 8 and guiding its linear motion. Slider 2 10: It is block-shaped with a threaded hole in the middle. It is sleeved on lead screw 2 11 and slides with lead screw 2 11 through threaded engagement. It is used to connect and drive limit rod 2 19 to move. Lead screw 2 11: It is long and cylindrical with threads on its surface. Both ends are rotatably connected to C-shaped bracket 2. It rotates under the drive of motor 2 18, converting the rotational motion into the linear motion of slider 2 10. Strip-shaped hole 12: It is a long strip-shaped through hole, which is opened on the opposite side of the C-shaped bracket 2 and corresponds to the position of lead screw 11. It allows the limiting rod 19 to pass through and slide, thereby limiting the rotation of slider 10 and guiding its linear motion. Connecting plate 13: It is a rectangular flat plate that connects the limiting rod 16 to the heating module 14 and the electromagnet 15 respectively. It serves as a connection medium to enable the feeding translation component to drive the heating module 14 and the electromagnet 15. Heating module 14: It is block-shaped, with the side facing the steel structure as the heating working surface. It has multiple independent heating points built in, which are used to precisely and locally heat the bending parts of the steel structure to improve its plasticity. Electromagnet 15: It is block-shaped, with the side facing the steel structure being the magnetic attraction surface. When energized, it generates a magnetic field to magnetically attract and fix components from the top of the steel structure, thereby realizing automated material loading, positioning, and transfer. Limiting rod 16: It is long rod shaped, with one end connected to slider 8 and the other end passing through strip hole 9 and connected to connecting plate 13. It is used to transmit the power of slider 8 and drive heating module 14 and electromagnet 15 to move. Fan 17: It has a circular blade structure and is installed on the opposite side of the C-shaped bracket 2, located on both sides of the lower mold base 20. It is used to force air cooling of the high-temperature steel structure after bending, and accelerate its cooling and shaping. Motor 2 18: It has a cylindrical shell structure and serves as the power source for the lower mold base removal structure. It drives the lead screw 2 11 to rotate through the output shaft, thereby moving the lower mold base 20. Limiting rod 2 19: It is long rod shaped, with one end connected to slider 2 10 and the other end passing through strip hole 2 12 and connected to lower mold base 20. It is used to transmit the power of slider 2 10 and drive lower mold base 20 to enter and exit the bending station. The lower mold base 20 is block-shaped or concave, with its top surface serving as the forming working surface that mates with the upper mold body 5. It is placed on the base plate 1 to support the steel structure and works in conjunction with the upper mold body 5 to complete the bending and forming operation.

[0026] Working Principle: After the device starts, the motor controller first receives the feeding command and drives motor 6 of the feeding translation component to rotate. Motor 6 drives lead screw 7 to rotate through the coupling. Since slider 8 is threadedly connected to lead screw 7, and limit rod 16 passes through strip hole 9 to form a sliding engagement, slider 8 slides along the axial direction of lead screw 7 due to the limiting effect. Through connecting plate 13, it drives heating module 14 and electromagnet 15 to move synchronously to the initial position of the steel structure to be processed. At this time, the electromagnetic controller starts, and electromagnet 15 is energized to generate a magnetic field, which magnetically fixes the component from the upper side of the steel structure, completing the automated feeding and positioning. After feeding is completed, the temperature control module and motor controller are linked. According to the steel structure grade and bending position parameters, motor 6 precisely adjusts the lateral position of heating module 14 so that its heating surface is directly facing the area to be bent. At the same time, the corresponding motor 6 can be driven independently to realize the asynchronous movement of heating module 14 and electromagnet 15, ensuring that the heating point is aligned. The temperature sensor monitors the temperature of the heating area in real time and feeds it back to the control module to adjust the power of heating module 14, activating only the corresponding heating point for local heating. To avoid overall heating leading to coarse grains and ensure the mechanical properties of the steel structure, after heating to the required level, electromagnet 15 transports the steel structure onto the lower mold base 20. The electromagnet 15 and the steel structure are then released, and the hydraulic controller activates the hydraulic cylinder 4 of the bending mold assembly. The piston rod drives the upper mold body 5 to descend vertically, maintaining stability under the support of the lower mold base 20. The upper mold body 5 and the lower mold base 20 work together to apply pressure to the heated steel structure, utilizing the high-temperature plasticity enhancement properties of heat-resistant steel to complete the bending process, effectively reducing cracks and springback. After bending, the hydraulic cylinder 4 drives the upper mold body 5 to reset. Simultaneously, the motor controller starts the motor 18 of the lower mold base removal structure. The lead screw 11 rotates, driving the slider 10 to slide. Through the limit rod 19, the lower mold base 20 is pulled to move along the strip hole 12, moving the formed steel structure out of the bending station and realizing automatic unloading. During the unloading process, the heat dissipation control module triggers the fans 17 on both sides of the lower mold base to operate, forcibly cooling the high-temperature steel structure after bending. The start and stop of the fans 17 are linked with the removal action of the lower mold base 20 to ensure that the steel structure cools down and sets quickly, completing the heat dissipation and unloading process simultaneously and shortening the processing cycle.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending device for producing heat-resistant steel, characterized in that, Includes a base plate (1) and a C-shaped bracket (2). Two C-shaped brackets (2) are fixedly connected to the top surface of the base plate (1). The two C-shaped brackets (2) are close to the two sides of the base plate (1) respectively. One side of the two C-shaped brackets (2) is fixedly connected to the base plate (1). The open ends of the two C-shaped brackets (2) are opposite to each other. The steel feeding structure is set between the two C-shaped supports (2), and the steel feeding structure is on the top surface of the base plate (1); The steel structure loading structure includes a loading translation component, a heating module (14) and an electromagnet (15), with the heating module (14) and the electromagnet (15) installed on the loading translation component. A support plate (3) is set on the side of the two C-shaped brackets (2) away from the bottom plate (1). One side of the support plate (3) is fixedly connected to the C-shaped bracket (2). The support plate (3) is on one side of the steel structure loading structure. The bending die assembly is disposed on the support plate (3) and is located between the two C-shaped brackets (2); The lower mold base removal structure is disposed between the two C-shaped brackets (2), and the lower mold base removal structure corresponds to the bending mold assembly.

2. The bending device for producing heat-resistant steel according to claim 1, characterized in that, The feeding translation assembly includes a motor (6), a lead screw (7), a slider (8), and a limiting rod (16). The mounting surfaces of the output shafts of the two motors (6) are fixedly connected to the outer side of the two C-shaped brackets (2). The two motors (6) are on the same side of the base plate (1). The output shafts of the motors (6) pass through the C-shaped brackets (2) and are rotatably connected to the C-shaped brackets (2). One end of the output shaft of the motors (6) is connected to the lead screw (7) through a coupling. The other end of the lead screw (7) is rotatably connected to the other side of the C-shaped brackets (2). One side of the slider (8) has a threaded hole. The two sliders (8) are respectively sleeved on the two lead screws (7). One side of the slider (8) is fixedly connected to the limiting rod (16).

3. The bending device for producing heat-resistant steel according to claim 2, characterized in that, Both of the C-shaped brackets (2) have a through-hole (9) on their opposite sides. The through-hole (9) corresponds to the lead screw (7). The end of the limiting rod (16) away from the slider (8) passes through the through-hole (9) and is slidably engaged with the through-hole (9).

4. A bending device for producing heat-resistant steel according to claim 2, characterized in that, The feeding translation assembly also includes a connecting plate (13). The side of the limiting rod (16) facing away from the slider (8) is fixedly connected to the connecting plate (13). The side of one connecting plate (13) facing away from the limiting rod (16) is connected to the heating module (14), and the side of the other connecting plate (13) facing away from the limiting rod (16) is connected to the electromagnet (15). The electromagnet (15) is above the heating module (14), and the heating surface of the heating module (14) is opposite to the magnetic surface of the electromagnet (15).

5. A bending device for producing heat-resistant steel according to claim 1, characterized in that, The bending mold assembly includes a hydraulic cylinder (4), an upper mold body (5), and a lower mold base (20). One side of the cylinder body of the hydraulic cylinder (4) is fixedly connected to the side of the support plate (3) away from the C-shaped bracket (2). One end of the piston rod of the hydraulic cylinder (4) passes through the support plate (3). One end of the piston rod of the hydraulic cylinder (4) is fixedly connected to the upper mold body (5). The lower mold base (20) is placed on the top surface of the base plate (1). The lower mold base (20) is on one side of the electromagnet (15).

6. A bending device for producing heat-resistant steel according to claim 2, characterized in that, The lower mold base removal structure includes a second motor (18), a second lead screw (11), a second slider (10), and a second limiting rod (19). The mounting surfaces of the output shafts of the two second motors (18) are fixedly connected to the outer side of the two C-shaped brackets (2). The two second motors (18) are on the same side of the base plate (1) and below the first motor (6). The output shafts of the second motors (18) pass through the C-shaped brackets (2) and are rotatably connected to the C-shaped brackets (2). One end of the output shaft of the second motor (18) is connected to the second lead screw (11) through a coupling. The other end of the second lead screw (11) is rotatably connected to the other side of the C-shaped brackets (2). One side of the second slider (10) is provided with a threaded hole. The two second sliders (10) are respectively sleeved on the two second lead screws (11). One side of the second slider (10) is fixedly connected to the second limiting rod (19).

7. A bending device for producing heat-resistant steel according to claim 6, characterized in that, Both of the C-shaped brackets (2) have a through-hole (12) on their opposite sides. The through-hole (12) corresponds to the lead screw (11). The end of the limiting rod (19) away from the slider (10) passes through the through-hole (12) and is slidably engaged with the through-hole (12). The ends of the two limiting rods (19) passing through the through-hole (12) are fixedly connected to the two sides of the lower mold base (20).

8. A bending device for producing heat-resistant steel according to claim 5, characterized in that, Fans (17) are installed on opposite sides of the two C-shaped brackets (2). The fans (17) are on the side of the upper mold body (5) away from the electromagnet (15) and on both sides of the lower mold base (20).

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