Bending cutting die heat treatment equipment and heat treatment process thereof

Abstract

The invention relates to the technical field of heat treatment equipment, and particularly discloses bending cutting die heat treatment equipment and a heat treatment process thereof.The bending cutting die heat treatment equipment comprises a tank body, a vertical frame and a quenching inductor; the vertical frame is vertically and fixedly connected to the inner wall of the tank body, and a base plate is horizontally and fixedly connected to the outer wall of the vertical frame; a cylinder mounted on the outer wall of the vertical frame is arranged at the top of the base plate; pressing plates are mounted at the output ends of the cylinders; a supporting plate is fixedly connected to the outer wall of the tank body; a pipe body is arranged on the outer wall of the supporting plate; the quenching inductor is mounted on the outer wall of the pipe body; the supporting plate is provided with a moving mechanism capable of driving the pipe body to move in the horizontal direction and the vertical direction along the supporting plate. The pipe body is driven to move through the moving mechanism, so that the quenching inductor can quickly heat the workpiece, the quenching efficiency is improved by utilizing an induction heating mode, and the quenching quality is ensured.

Description

Technical Field

[0001] This invention relates to the field of heat treatment equipment technology, and in particular to heat treatment equipment and heat treatment process for bending dies. Background Technology

[0002] Sheet metal is typically produced by bending a metal sheet using a bending die. The bending die has a corresponding cutting edge. During the bending process, the cutting edge of the bending die directly contacts the sheet metal part, pressing the sheet metal against the lower die, causing the metal sheet to bend under the pressure. Because the bending die directly contacts the sheet metal part, it is prone to wear and deformation. Therefore, the hardness of the bending die is very important. To ensure that the bending die has good hardness, it needs to undergo quenching heat treatment during the production and processing of the bending die.

[0003] In the prior art, bending dies usually need to be heated during quenching heat treatment. Box furnaces are often used for heating the dies, but they have low heating efficiency, which affects the quenching efficiency of the dies. Summary of the Invention

[0004] This application provides heat treatment equipment and process for bending die heat treatment, which uses a quenching inductor to quickly heat the workpiece, thereby improving the efficiency of quenching work.

[0005] The heat treatment equipment and heat treatment process for the bending die provided in this application adopt the following technical solution: A heat treatment device for bending dies includes a tank, a stand, and a quenching inductor. The stand is vertically fixed to the inner wall of the tank, and a pad is horizontally fixed to the outer wall of the stand. A cylinder is mounted on the top of the pad and installed on the outer wall of the stand. A pressure plate is installed at the output end of the cylinder. A vertically arranged support plate is fixed to the outer wall of the tank near the stand. A tube is installed on the outer wall of the support plate. The quenching inductor is installed on the outer wall of one end of the tube. A moving mechanism is provided on the support plate. The moving mechanism can drive the tube to move horizontally and vertically along the support plate.

[0006] By adopting the above technical solution, when heating the cutting edge of the die, the workpiece is placed vertically on the top of the support plate. The cylinder is activated to move the pressure plate to clamp the workpiece. Then, the moving mechanism moves the tube horizontally, bringing the quenching inductor closer to the workpiece cutting edge. When the quenching inductor is activated to heat the workpiece, the moving mechanism moves the tube vertically to ensure uniform heating of the cutting edge. This induction heating method improves quenching efficiency, ensures quenching quality, reduces the possibility of workers coming into contact with high-temperature workpieces, and guarantees the safety of the quenching process.

[0007] Preferably, the moving mechanism includes a first electromagnetic slide rail and a second electromagnetic slide rail; the first electromagnetic slide rail is vertically mounted on the outer wall of the support plate, and a first sliding plate is slidably mounted on the first electromagnetic slide rail; the second electromagnetic slide rail is mounted on the outer wall of the first sliding plate, and the second electromagnetic slide rail is arranged perpendicular to the first electromagnetic slide rail, and a second sliding plate is slidably mounted on the second electromagnetic slide rail; the tube body is detachably mounted on the outer wall of the second sliding plate.

[0008] By adopting the above technical solution, after the workpiece is clamped on the stand, the tube body can be moved by the cooperation of the second electromagnetic slide rail and the second sliding plate, so that the quenching inductor can be moved to a position close to the cutting edge of the workpiece. When the quenching inductor heats the workpiece, the quenching inductor can be moved vertically by the cooperation of the first electromagnetic slide rail and the first sliding plate, so as to achieve uniform heating of the cutting edge of the workpiece.

[0009] Preferably, a water spray nozzle is provided at the end of the pipe body near the quenching inductor; a water tank is provided at the bottom of the tank body, and a water pump is provided on the outer wall of the tank body; the water pump input end is provided with a water inlet pipe communicating with the water tank, and the water pump output end is provided with a water outlet pipe communicating with the pipe body.

[0010] By adopting the above technical solution, after the quenching inductor heats the workpiece, the water pump is started to draw cooling water from the water tank and deliver it into the pipe body, and spray it onto the workpiece through the spray nozzle to cool the workpiece and achieve quenching of the workpiece, thus ensuring the hardness of the product.

[0011] Preferably, a filter screen is installed on the inner wall of the tank near the bottom, and a first opening is provided on the bottom wall of the tank; a semiconductor cooling chip is installed on the outer wall of the water tank, and a second opening is provided on the top wall of the water tank that cooperates with and communicates with the first opening.

[0012] By adopting the above technical solution, the filter screen can filter the cooling water, blocking impurities mixed in the cooling water on the top surface of the filter screen. The filtered cooling water then flows into the water tank through the first and second openings. The semiconductor cooling chip fully cools the cooling water in the water tank so as to realize the recycling of the cooling water.

[0013] Preferably, a motor is horizontally mounted on the outer wall of the tank; a reciprocating screw extending to the top of the filter screen is coaxially fixed to the output end of the motor; a cleaning brush that contacts the top surface of the filter screen is sleeved on the outside of the reciprocating screw; the cleaning brush is threadedly driven with the reciprocating screw and slides with the inner wall of the tank; the tank has discharge ports communicating with the top surface of the filter screen on both inner walls where the end of the reciprocating screw is located.

[0014] By adopting the above technical solution, the starting motor drives the reciprocating screw to rotate, causing the cleaning brush to move along the axial direction of the reciprocating screw, cleaning the impurities accumulated on the surface of the filter screen, and promoting the discharge of impurities from the discharge port, reducing the possibility of the filter screen mesh being blocked and ensuring the water permeability of the filter screen.

[0015] Preferably, the inner wall of the water tank is rotatably connected to a stirring shaft coaxial with the reciprocating lead screw; a stirring plate is provided on the outer wall of the stirring shaft; and a first transmission component capable of driving the stirring shaft to rotate is provided at the end of the reciprocating lead screw away from the motor.

[0016] By adopting the above technical solution, the reciprocating screw will drive the stirring shaft to rotate through the first transmission component during rotation, causing the stirring plate to stir the cooling water in the water tank so that the semiconductor refrigeration chip can uniformly cool the cooling water.

[0017] Preferably, the first transmission assembly includes a first pulley, a second pulley, and a first belt; the first pulley is coaxially fixed to the outer wall of the end of the reciprocating screw; the second pulley is coaxially fixed to the outer wall of the end of the stirring shaft; and the first belt is sleeved outside the first pulley and the second pulley.

[0018] By adopting the above technical solution, under the coordinated operation of the first pulley, the second pulley and the first belt, the reciprocating screw will drive the stirring shaft to rotate during the rotation process, thereby realizing the transfer of kinetic energy during the rotation of the reciprocating screw.

[0019] Preferably, an exhaust pipe is fixedly connected to the side wall of the water tank near the top; a rotating shaft coaxial with the reciprocating screw is rotatably connected to the inner wall of the exhaust pipe; a fan blade located inside the exhaust pipe is provided on the outer wall of the rotating shaft; and a second transmission component capable of driving the rotating shaft to rotate is provided at the end of the reciprocating screw near the exhaust pipe.

[0020] By adopting the above technical solution, the reciprocating screw will drive the rotating shaft to rotate through the second transmission component during the rotation process, causing the fan blades to rotate and draw air, so as to discharge the hot air in the water tank out of the water tank through the exhaust pipe, thereby improving the heat dissipation and cooling efficiency of the cooling water.

[0021] Preferably, the second transmission assembly includes a third pulley, a fourth pulley, and a second belt; the third pulley is coaxially fixed to the outer wall of the end of the reciprocating lead screw; the fourth pulley is coaxially fixed to the outer wall of the end of the rotating shaft; and the second belt is sleeved on the outside of the third pulley and the fourth pulley.

[0022] By adopting the above technical solution, with the cooperation of the third pulley, the fourth pulley and the second belt, the reciprocating screw will drive the rotating shaft to rotate during the rotation process, thereby realizing the transfer of kinetic energy during the rotation of the reciprocating screw.

[0023] The heat treatment process for bending dies, based on the aforementioned heat treatment equipment for bending dies, includes the following steps: S1. Place the die-cutting mold on the support plate, start the cylinder to move the pressure plate and press the die-cutting mold; S2. The moving mechanism drives the tube to move, prompting the quenching inductor to quickly heat the cutting edge of the die. S3. Start the water pump to deliver cooling water into the pipe body, and spray the cooling water out of the nozzle to cool the cutting edge of the workpiece in time and realize the workpiece quenching work. S4. Start the motor to drive the reciprocating screw to rotate, causing the cleaning brush to clean the surface of the filter screen.

[0024] In summary, this application has the following beneficial effects: 1. Place the workpiece vertically on the top of the stand plate, start the cylinder to move the pressure plate to clamp the workpiece, and move the tube body through the moving mechanism so that the quenching inductor can quickly heat the cutting edge of the workpiece. The induction heating method improves the quenching efficiency, ensures the quenching quality, reduces the possibility of workers coming into contact with high-temperature workpieces, and ensures the safety of the quenching work. 2. After the quenching inductor heats the workpiece, the water pump is started to draw cooling water from the water tank and deliver it into the pipe body. The water is then sprayed onto the workpiece through the spray nozzle to cool it down, thereby achieving quenching and ensuring the hardness of the product. 3. When the filter screen filters the cooling water, start the motor to drive the reciprocating screw to rotate, so that the cleaning brush moves along the axis of the reciprocating screw to clean the impurities accumulated on the surface of the filter screen, so that the impurities are discharged from the discharge port, reducing the possibility of the filter screen mesh being blocked and ensuring the water permeability of the filter screen. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the heat treatment equipment for bending die in this application; Figure 2 This is a schematic diagram of the frame structure in this application; Figure 3 This is a schematic diagram of the structure of the mobile mechanism in this application; Figure 4 This is a schematic diagram of the mating structure of the tube body and the quenching inductor in this application; Figure 5 This is a schematic diagram of the internal structure of the tank and water tank in this application; Figure 6 This is a schematic diagram of the transmission and engagement structure of the reciprocating lead screw and the stirring shaft in this application; Figure 7 This is a schematic diagram of the transmission and engagement structure of the reciprocating lead screw and the rotating shaft in this application.

[0026] Explanation of reference numerals in the attached drawings: 1. Tank; 11. Support plate; 12. Pipe; 121. Spray nozzle; 13. Water pump; 131. Inlet pipe; 132. Outlet pipe; 14. Filter screen; 2. Stand; 21. Pad plate; 22. Cylinder; 23. Pressure plate; 3. Quenching inductor; 4. Moving mechanism; 41. First electromagnetic slide rail; 411. First sliding plate; 42. Second electromagnetic slide rail; 421. Second sliding plate; 5. Water tank; 51. Semiconductor cooling chip; 52. Stirring shaft; 521. Stirring plate; 53. Exhaust pipe; 54. Rotating shaft; 55. Fan blade; 6. Motor; 61. Reciprocating lead screw; 62. Cleaning brush; 63. First transmission assembly; 631. First pulley; 632. Second pulley; 633. First belt; 64. Second transmission assembly; 641. Third pulley; 642. Fourth pulley; 643. Second belt. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0028] This invention discloses a heat treatment equipment for bending dies, such as... Figure 1 and Figure 2 As shown, it includes a tank 1 and a support frame 2. The support frame 2 is vertically fixed to the inner wall of the tank 1. The cross-section of the support frame 2 is L-shaped. A pad 21 is horizontally fixed to the outer wall of the support frame 2. Multiple cylinders 22 are evenly distributed in the vertical direction on the top of the pad 21. The cylinders 22 are all horizontally connected to the outer wall of the support frame 2 through a support frame. A pressure plate 23 is fixed to the output end of the cylinder 22.

[0029] The die to be heated is placed vertically on the pad 21 of the stand 2. The cylinder 22 is started to drive the pressure plate 23 to move toward the workpiece and press the workpiece, so as to realize the clamping work on the stand 2, so as to carry out stable quenching heat treatment of the workpiece in the future.

[0030] like Figure 1 , Figure 3 and Figure 4 As shown, a vertically arranged support plate 11 is fixed to the outer wall of the tank 1 on the side where the stand 2 is located. A tube 12 is horizontally installed on the outer wall of the support plate 11 near the tank 1. The end of the tube 12 near the stand 2 is concave and can be matched with the cutting edge of the workpiece. A quenching inductor 3 for heating the workpiece is provided on the outer wall of the concave end of the tube 12. A moving mechanism 4 connected to the tube 12 is also provided on the support plate 11. The moving mechanism 4 can drive the tube 12 to move horizontally and vertically along the surface of the support plate 11. The moving mechanism 4 includes a first electromagnetic slide rail 41 and a second electromagnetic slide rail 42. The first electromagnetic slide rail 41 is vertically mounted on the outer wall of the support plate 11, and a first slide plate 411 is slidably connected to the first electromagnetic slide rail 41. The second electromagnetic slide rail 42 is horizontally fixed to the outer wall of the first slide plate 411 and is arranged perpendicular to the first electromagnetic slide rail 41. A second slide plate 421 is slidably connected to the second electromagnetic slide rail 42. The end of the tube body 12 away from the quenching inductor 3 is detachably mounted on the outer wall of the second slide plate 421 by bolts.

[0031] After the workpiece is clamped, the tube body 12 is moved horizontally by the cooperation of the second electromagnetic slide rail 42 and the second slide plate 421, so that the quenching inductor 3 is moved to a position close to the bottom of the workpiece. The quenching inductor 3 is used to heat the workpiece. Then, the tube body 12 is moved vertically by the cooperation of the first electromagnetic slide rail 41 and the first slide plate 411, so that the quenching inductor 3 can heat the workpiece evenly along the cutting edge direction of the workpiece.

[0032] like Figure 1 and Figure 4 As shown, a water tank 5 for storing cooling water is provided at the bottom of the tank 1. Multiple water spray nozzles 121 are provided at the end of the pipe 12 near the quenching inductor 3. A water pump 13 is installed on the outer wall of the tank 1. A water inlet pipe 131 is fixedly connected to the input end of the water pump 13, and a water outlet pipe 132 is fixedly connected to the output end of the water pump 13. The end of the water inlet pipe 131 away from the water pump 13 is fixedly connected to the outer wall of the water tank 5 near the bottom and communicates with the water tank 5. The end of the water outlet pipe 132 away from the water pump 13 is fixedly connected to the outer wall of the pipe 12 and communicates with the pipe 12.

[0033] After the cutting edge is heated, the water pump 13 is started to deliver cooling water to the pipe body 12 and spray it out through the spray nozzle 121 to cool the cutting edge of the workpiece in time, realize the workpiece quenching work, and ensure the hardness of the product.

[0034] like Figure 1 and Figure 5 As shown, a filter screen 14 is horizontally installed on the inner wall of the outer side of the tank 1 near the bottom. A first opening is provided on the bottom wall of the tank 1. A second opening is provided on the top wall of the water tank 5, which is connected to the first opening. Multiple semiconductor cooling chips 51 are installed on the outer wall of the water tank 5.

[0035] The cooling water that falls from the spray is filtered by the filter screen 14 and then flows back into the water tank 5. The semiconductor cooling chip 51 installed on the outer wall of the water tank 5 can cool the cooling water in time so that the cooling water can be recycled and water resources can be saved.

[0036] like Figure 1 and Figure 5As shown, a motor 6 is horizontally mounted on the outer wall of the tank 1. A reciprocating screw 61 extending to the top of the filter screen 14 is coaxially fixed to the output end of the motor 6. A cleaning brush 62 is sleeved on the outside of the reciprocating screw 61 and threadedly engaged with the reciprocating screw 61. The cleaning brush 62 contacts the top surface of the filter screen 14 and slides against the inner wall of the tank 1. The tank 1 has discharge ports on both sides of the reciprocating screw 61 that communicate with the top surface of the filter screen 14. The bottom surface of the discharge port is lower than the position of the top surface of the filter screen 14.

[0037] When the filter screen 14 is continuously filtering cooling water, the start motor 6 drives the reciprocating screw 61 to rotate, causing the cleaning brush 62 to clean the surface of the filter screen 14, sweeping the impurities accumulated on the filter screen 14 out of the discharge port into the tank 1, thereby reducing the possibility of the filter screen 14 being clogged and ensuring the water permeability of the filter screen 14.

[0038] like Figure 1 , Figure 5 and Figure 6 As shown, a stirring shaft 52 coaxial with the reciprocating screw 61 is rotatably connected to the inner wall of the water tank 5. Multiple stirring plates 521 are provided on the outer wall of the stirring shaft 52. A first transmission assembly 63 that can drive the stirring shaft 52 to rotate is provided at the end of the reciprocating screw 61 away from the motor 6. The first transmission assembly 63 includes a first pulley 631, a second pulley 632 and a first belt 633. The first pulley 631 is coaxially fixed to the outer wall of the end of the reciprocating screw 61 away from the motor 6. The second pulley 632 is coaxially fixed to the outer wall of the end of the stirring shaft 52 away from the motor 6. The first belt 633 is tensioned and sleeved outside the first pulley 631 and the second pulley 632, driving the first pulley 631 and the second pulley 632 to move together.

[0039] With the cooperation of the first pulley 631, the second pulley 632 and the first belt 633, the reciprocating screw 61 will drive the stirring shaft 52 to rotate during rotation, causing the stirring plate 521 to stir the cooling water to move, so that the semiconductor cooling chip 51 can cool the cooling water more evenly and reduce the possibility of temperature zoning of the cooling water.

[0040] like Figure 1 , Figure 5 and Figure 7As shown, a ventilation duct 53 connecting the water tank 5 to the external environment is horizontally fixed to the side wall near the top of the water tank 5. A rotating shaft 54, coaxial with the reciprocating screw 61, is rotatably connected to the inner wall of the ventilation duct 53. Fan blades 55 located inside the ventilation duct 53 are provided on the outer wall of the rotating shaft 54. A dustproof net is installed on the inner wall of the end of the ventilation duct 53 away from the water tank 5. One end of the rotating shaft 54 ​​extends through the dustproof net to the outside of the ventilation duct 53. A second transmission group is provided at the end of the reciprocating screw 61 away from the motor 6, which can drive the rotating shaft 54 ​​to rotate. Component 64, the second transmission assembly 64 includes a third pulley 641, a fourth pulley 642 and a second belt 643; the third pulley 641 is coaxially fixed to the outer wall of the end of the reciprocating screw 61 away from the motor 6, the fourth pulley 642 is coaxially fixed to the outer wall of the end of the rotating shaft 54 ​​away from the motor 6, the diameter of the third pulley 641 is much larger than the diameter of the fourth pulley 642, and the second belt 643 is tensioned and sleeved on the outside of the third pulley 641 and the fourth pulley 642, driving the third pulley 641 and the fourth pulley 642 to move together.

[0041] With the cooperation of the third pulley 641, the fourth pulley 642 and the second belt 643, the reciprocating screw 61 will drive the rotating shaft 54 ​​to rotate during rotation, causing the fan blades 55 to rotate and draw air, so as to discharge the hot air in the water tank 5 to the external environment in a timely manner, thereby improving the heat dissipation efficiency of the cooling water. The dust filter is used to filter dust and impurities in the external environment and reduce the possibility of the cooling water being contaminated.

[0042] The heat treatment process for bending dies includes the following steps: S1. Place the die-cutting mold vertically on the pad 21 of the stand 2, start the cylinder 22 to drive the pressure plate 23 to move, and press the die-cutting mold tightly on the inner wall of the stand 2; S2. When heating the cutting edge of the workpiece, the moving mechanism 4 drives the tube 12 to move to the vicinity of the bottom of the cutting edge of the die, and moves vertically along the cutting edge of the die, so that the quenching inductor 3 can quickly heat the cutting edge of the die. S3. After heating the cutting edge, start the water pump 13 to deliver cooling water to the pipe body 12 and spray it out through the spray nozzle 121 to cool the cutting edge of the workpiece in time, realize the workpiece quenching work, and ensure the hardness of the product. S4. When the filter screen 14 filters the returning cooling water, start the motor 6 to drive the reciprocating screw 61 to rotate, causing the cleaning brush 62 to clean the surface of the filter screen 14 and ensure the water permeability of the filter screen 14.

[0043] Working principle: The die to be heated is placed vertically on the pad 21 of the stand 2. The cylinder 22 is started to move the pressure plate 23 toward the workpiece to press the workpiece. Then, the tube 12 moves toward the workpiece through the cooperation of the second electromagnetic slide rail 42 and the second slide plate 421, causing the quenching inductor 3 to move to a position close to the bottom of the workpiece. The quenching inductor 3 is used to heat the workpiece. During the heating process, the tube 12 moves upward through the cooperation of the first electromagnetic slide rail 41 and the first slide plate 411, causing the quenching inductor 3 to heat the workpiece evenly along the cutting edge. After the cutting edge is heated, the water pump 13 can be started to deliver cooling water to the tube 12 and spray it out through the spray nozzle 121 to cool the cutting edge of the workpiece in time, so as to realize the quenching of the workpiece and ensure the hardness of the product. The cooling water sprayed down flows back into the water tank 5 after being filtered by the filter screen 14. The cooling water in the water tank 5 is cooled in time by the semiconductor cooling chip 51 so as to realize the recycling of cooling water. When the filter screen 14 is continuously filtering cooling water, the motor 6 is started to drive the reciprocating screw 61 to rotate, so that the cleaning brush 62 cleans the surface of the filter screen 14, reducing the possibility of the mesh of the filter screen 14 being blocked by impurities and ensuring the water permeability of the filter screen 14. During rotation, the reciprocating screw 61 drives the stirring shaft 52 and the rotating shaft 54 ​​to rotate via the first transmission component 63 and the second transmission component 64. When the stirring shaft 52 rotates, the stirring plate 521 stirs the cooling water, so that the semiconductor cooling chip 51 can cool the cooling water evenly. When the rotating shaft 54 ​​rotates, it drives the fan blade 55 to rotate and draw air, so as to expel the hot air in the water tank 5 and improve the heat dissipation efficiency of the cooling water, so as to ensure the cooling effect of the cooling water on the workpiece during the circulation process.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat treatment equipment for bending dies, characterized in that: The system includes a tank (1), a support frame (2), and a quenching sensor (3). The support frame (2) is vertically fixed to the inner wall of the tank (1), and a pad (21) is horizontally fixed to the outer wall of the support frame (2). A cylinder (22) is installed on the top of the pad (21) and mounted on the outer wall of the support frame (2). A pressure plate (23) is installed at the output end of the cylinder (22). A vertically arranged support plate (11) is fixed to the outer wall of the tank (1) near the support frame (2). A tube (12) is installed on the outer wall of the support plate (11). The quenching sensor (3) is installed on the outer wall of one end of the tube (12). A moving mechanism (4) is provided on the support plate (11). The moving mechanism (4) can drive the tube (12) to move horizontally and vertically along the support plate (11).

2. The heat treatment equipment for bending dies according to claim 1, characterized in that: The moving mechanism (4) includes a first electromagnetic slide rail (41) and a second electromagnetic slide rail (42); the first electromagnetic slide rail (41) is vertically mounted on the outer wall of the support plate (11), and a first sliding plate (411) is slidably mounted on the first electromagnetic slide rail (41); the second electromagnetic slide rail (42) is mounted on the outer wall of the first sliding plate (411), and the second electromagnetic slide rail (42) is arranged perpendicularly to the first electromagnetic slide rail (41), and a second sliding plate (421) is slidably mounted on the second electromagnetic slide rail (421); the tube body (12) is detachably mounted on the outer wall of the second sliding plate (421).

3. The heat treatment equipment for bending dies according to claim 1, characterized in that: A water nozzle (121) is provided at the end of the pipe (12) near the quenching inductor (3); a water tank (5) is provided at the bottom of the tank (1), and a water pump (13) is provided on the outer wall of the tank (1); the water pump (13) has an inlet pipe (131) connected to the water tank (5) at its input end, and an outlet pipe (132) connected to the pipe (12) at its output end.

4. The heat treatment equipment for bending dies according to claim 3, characterized in that: A filter screen (14) is installed on the inner wall of the tank (1) near the bottom end, and a first opening is provided on the inner bottom wall of the tank (1); a semiconductor cooling chip (51) is installed on the outer wall of the water tank (5), and a second opening is provided on the top wall of the water tank (5) to cooperate and communicate with the first opening.

5. The heat treatment equipment for bending dies according to claim 4, characterized in that: A motor (6) is horizontally mounted on the outer wall of the tank (1); a reciprocating screw (61) extending to the top of the filter screen (14) is coaxially fixed to the output end of the motor (6); a cleaning brush (62) that contacts the top surface of the filter screen (14) is sleeved on the outside of the reciprocating screw (61); the cleaning brush (62) is threadedly driven with the reciprocating screw (61), and the cleaning brush (62) slides with the inner wall of the tank (1); the tank (1) is provided with discharge ports communicating with the top surface of the filter screen (14) on both inner walls where the end of the reciprocating screw (61) is located.

6. The heat treatment equipment for bending dies according to claim 5, characterized in that: The inner wall of the water tank (5) is rotatably connected to a stirring shaft (52) coaxial with the reciprocating screw (61); a stirring plate (521) is provided on the outer wall of the stirring shaft (52); a first transmission component (63) that can drive the stirring shaft (52) to rotate is provided at the end of the reciprocating screw (61) away from the motor (6).

7. The heat treatment equipment for bending dies according to claim 6, characterized in that: The first transmission assembly (63) includes a first pulley (631), a second pulley (632), and a first belt (633); the first pulley (631) is coaxially fixed to the outer wall of the end of the reciprocating screw (61); the second pulley (632) is coaxially fixed to the outer wall of the end of the stirring shaft (52); and the first belt (633) is sleeved on the outside of the first pulley (631) and the second pulley (632).

8. The heat treatment equipment for bending dies according to claim 5, characterized in that: An exhaust pipe (53) is fixed to the side wall near the top of the water tank (5); a rotating shaft (54) coaxial with the reciprocating screw (61) is rotatably connected to the inner wall of the exhaust pipe (53); a fan blade (55) located inside the exhaust pipe (53) is provided on the outer wall of the rotating shaft (54); a second transmission assembly (64) that can drive the rotating shaft (54) to rotate is provided at the end of the reciprocating screw (61) near the exhaust pipe (53).

9. The heat treatment equipment for bending dies according to claim 8, characterized in that: The second transmission assembly (64) includes a third pulley (641), a fourth pulley (642), and a second belt (643); the third pulley (641) is coaxially fixed to the outer wall of the end of the reciprocating screw (61); the fourth pulley (642) is coaxially fixed to the outer wall of the end of the rotating shaft (54); and the second belt (643) is sleeved on the outside of the third pulley (641) and the fourth pulley (642).

10. A heat treatment process for bending dies, based on the heat treatment equipment for bending dies according to any one of claims 1-9, characterized in that: The process includes the following steps: S1. Place the die-cutting mold on the pad (21) of the stand (2), start the cylinder (22) to drive the pressure plate (23) to move and press the die-cutting mold; S2. The moving mechanism (4) drives the tube body (12) to move, prompting the quenching inductor (3) to quickly heat the cutting edge of the die. S3. Start the water pump (13) to deliver cooling water to the pipe (12), and spray the cooling water out of the nozzle (121) to cool the cutting edge of the workpiece in time and realize the workpiece quenching work. S4. Start the motor (6) to drive the reciprocating screw (61) to rotate, causing the cleaning brush (62) to clean the surface of the filter screen (14).

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