High-strength valve forging equipment and forging process

Abstract

The invention discloses high-strength valve forging equipment and a forging process, and relates to the technical field of die forging machines. A support is fixedly mounted on the upper surface of the workbench, a hydraulic cylinder is fixedly mounted on the inner wall of the support, a mounting plate is fixedly connected to the output end of the hydraulic cylinder, an upper mold is movably clamped to the lower surface of the mounting plate, and a lower mold is movably clamped to the upper surface of the workbench. A positioning assembly used in cooperation with the upper die and the lower die is jointly arranged in the workbench and the mounting plate, an ejection assembly is arranged between the workbench and the lower die, and a cooling assembly used in cooperation with the lower die is arranged in the support. The formed valve is stably ejected out of the lower die, the forging efficiency of the forging equipment is remarkably improved, and the forged valve is rapidly cooled in an air cooling mode through the cooling assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of die forging machines, in particular to high-strength valve forging equipment and a forging process. Background Art

[0002] In fluid systems, valves are key devices for controlling, regulating, and directing fluids. There are many types of valves, including globe valves, gate valves, and ball valves, based on their structural characteristics, applications, and operating principles. Three-way, hollow valve bodies with flanges are essential components for high-pressure, heat-resistant, and corrosion-resistant pipelines in the international nuclear power, thermal power, petrochemical, and shipbuilding industries. Valve forging equipment is required for valve forging.

[0003] However, there are still some problems in the use of existing high-strength valve forging equipment:

[0004] First, existing forging equipment generally uses bolts to install its mold. The bolt installation method is prone to loosening during use, which in turn causes the mold to shift and affects the accuracy of the valve forging.

[0005] Secondly, the existing forging equipment lacks a structure for quickly demolding the valve. After forging is completed, removing the valve from the lower die is cumbersome and time-consuming, thus affecting the forging efficiency of the forging equipment.

[0006] In addition, existing forging equipment mostly uses water cooling to cool the forged valves. The cooling cost of water cooling is high, and the maintenance cost of water cooling is also high, thereby increasing the cost of valve forging. Summary of the Invention

[0007] In order to solve the problems of unstable mold installation, lack of effective valve demoulding structure and high valve cooling cost in existing forging equipment, the purpose of the present invention is to provide a high-strength valve forging equipment and forging process.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions: a high-strength valve forging equipment, comprising a workbench, a bracket fixedly installed on the upper surface of the workbench, a hydraulic cylinder fixedly installed on the inner wall of the bracket, the output end of the hydraulic cylinder fixedly connected to a mounting plate, guide blocks symmetrically fixedly connected on both sides of the mounting plate, guide grooves symmetrically opened on the inner wall of the bracket for cooperating with the guide blocks, the guide blocks are slidably connected to the guide grooves, the lower surface of the mounting plate is movably connected with an upper mold, the upper surface of the workbench is movably connected with a lower mold, the workbench and the mounting plate are jointly provided with a positioning component for cooperating with the upper mold and the lower mold, an ejection component is provided between the workbench and the lower mold, and the interior of the bracket is provided with a cooling component for cooperating with the lower mold.

[0009] Preferably, the positioning assembly includes a first servo motor, the first servo motor is fixedly arranged inside the mounting plate, the output end of the first servo motor is fixedly connected to the first bidirectional screw, the outer surface of the first bidirectional screw is symmetrically threaded with a first slider, one side of the first slider is fixedly connected to the first connecting rod, and one side of the first connecting rod is fixedly connected to the first positioning plate, the outer surface of the upper mold is provided with a first slot, the first positioning plate is movably engaged with the first slot, the inside of the workbench is fixedly installed with a second servo motor, the output end of the second servo motor is fixedly connected to the second bidirectional screw, and the outer surface of the second bidirectional screw is symmetrical The threaded sleeve is provided with a second slider, the first slider is threadedly sleeved on the outer surface of the first bidirectional screw in the opposite thread direction, the second slider is threadedly sleeved on the outer surface of the second bidirectional screw in the opposite thread direction, the first slider and the second slider are both slidably connected to the inside of the workbench, one side of the second slider is fixedly connected to the second connecting rod, one side of the second connecting rod is fixedly connected to the second positioning plate, the cross-sectional shapes of the first positioning plate and the second positioning plate are both arc-shaped, and the first positioning plate and the second positioning plate are both anti-slip plates, the outer surface of the lower mold is provided with a second slot, and the second positioning plate is movably engaged with the second slot.

[0010] Preferably, the ejection assembly includes a support plate, which is fixedly mounted inside the workbench, a cylinder is fixedly mounted on the upper surface of the support plate, and the output end of the cylinder is fixedly connected to a circular plate, and ejector rods are fixedly mounted in a circular array on the upper surface of the circular plate, and a first through groove and a second through groove are respectively provided inside the workbench and the lower mold, and the corresponding ejector rods are slidably connected to the corresponding first through groove and second through groove.

[0011] Preferably, the cooling assembly includes symmetrically arranged mounting grooves, the mounting grooves being symmetrically arranged on both sides of the bracket, and heat dissipation fans being fixedly installed inside the mounting grooves, and the corresponding heat dissipation fans being arranged in parallel.

[0012] Preferably, the present invention further discloses a high-strength valve forging process, comprising the following steps:

[0013] S1. Control the hydraulic cylinder to start. The output end of the hydraulic cylinder drives the upper die mounted on the mounting plate to move downward through the mounting plate, and cooperates with the lower die to forge the valve blank.

[0014] S2. Controlling the first servo motor to start, the output end of the first servo motor drives the first bidirectional screw to rotate, the rotation of the first bidirectional screw drives the first slider to move, the movement of the first slider drives the first positioning plate to move via the first connecting rod, and the first positioning plate is clamped in the first clamping slot to achieve rapid installation and fixation of the upper mold;

[0015] S3. Control the second servo motor to start, and the output end of the second servo motor drives the second bidirectional screw to rotate. The rotation of the second bidirectional screw drives the second slider to move. The movement of the second slider drives the second positioning plate to move via the second connecting rod. The second positioning plate is clamped in the second clamping slot, thereby achieving rapid installation and fixation of the lower mold.

[0016] S4. The control cylinder is started, and the output end of the cylinder drives the circular plate to move. The circular plate drives the ejector rod to move upward. The ejector rod passes through the first through slot and the second through slot in sequence, and the forged valve in the lower die is quickly demolded.

[0017] S5. Control the cooling fan in the installation slot to start, so as to achieve rapid air-cooling of the forged valve.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This application adopts an electric positioning assembly to replace the traditional bolt connection, and uses a precision electric drive device to firmly install and accurately position the upper and lower molds. This structure can automatically compensate for the vibration effect during the forging process, effectively prevent the mold from loosening and shifting, and ensure the forging accuracy of the valve;

[0020] 2. This application uses an ejector assembly to smoothly eject the formed valve from the lower die. Compared with the traditional manual removal method, the operation process is greatly simplified and the forging efficiency of the forging equipment is significantly improved;

[0021] 3. This application uses air cooling to quickly cool the forged valves through cooling components. Compared with water cooling, the cooling cost is lower and the subsequent maintenance cost is also low, effectively reducing the overall production cost of valve forging. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic cross-sectional view of part of the structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the positioning component of the present invention.

[0026] Figure 4 For the present invention Figure 3A magnified schematic diagram of the structure in the middle.

[0027] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the ejection assembly of the present invention.

[0029] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point C in the middle.

[0030] Figure 8 This is a schematic diagram of the cooling assembly structure of the present invention.

[0031] In the figure: 1. workbench; 2. positioning assembly; 21. first positioning plate; 22. first connecting rod; 23. first slider; 24. first bidirectional screw; 25. first slot; 26. first servo motor; 27. second slot; 28. second positioning plate; 29. second connecting rod; 201. second slider; 202. second bidirectional screw; 203. second servo motor; 3. ejector assembly; 31. circular plate; 32. cylinder; 33. support plate; 34. second through slot; 35. ejector rod; 36. first through slot; 4. cooling assembly; 41. cooling fan; 42. mounting slot; 5. lower mold; 6. bracket; 7. upper mold; 8. hydraulic cylinder; 9. guide slot; 10. guide block; 11. mounting plate. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example: Figure 1-8As shown, the present invention provides a high-strength valve forging equipment, including a workbench 1, a bracket 6 is fixedly installed on the upper surface of the workbench 1, and a hydraulic cylinder 8 is fixedly installed on the inner wall of the bracket 6. The output end of the hydraulic cylinder 8 is fixedly connected to a mounting plate 11, and the bracket 6 cooperates with the hydraulic cylinder 8 to accurately control the lifting and lowering of the mounting plate 11, thereby driving the upper mold 7 to realize the opening and closing of the mold, and the two sides of the mounting plate 11 are symmetrically fixedly connected with guide blocks 10, and the inner wall of the bracket 6 is symmetrically provided with guide grooves 9 for cooperating with the guide blocks 10, and the guide blocks 10 are slidably connected to the guide grooves 9, and the lower surface of the mounting plate 11 is movably clamped with the upper mold 7, and the sliding connection between the guide blocks 10 and the guide grooves 9 limits the movement trajectory of the mounting plate 11, avoids its deviation during the lifting process, ensures that the upper mold 7 and the lower mold 5 can be accurately clamped, and improves the accuracy of valve forging.

[0034] The upper surface of the workbench 1 is movably connected to the lower mold 5. The workbench 1 and the interior of the mounting plate 11 are jointly provided with a positioning component 2 used to cooperate with the upper mold 7 and the lower mold 5. The positioning component 2 realizes the stable installation of the upper mold 7 and the lower mold 5. An ejection component 3 is provided between the workbench 1 and the lower mold 5. The ejection component 3 effectively improves the valve demoulding efficiency. The interior of the bracket 6 is provided with a cooling component 4 used to cooperate with the lower mold 5. The cooling component 4 effectively reduces the cooling cost.

[0035] The positioning assembly 2 includes a first servo motor 26, which is fixedly arranged inside the mounting plate 11. The output end of the first servo motor 26 is fixedly connected to a first bidirectional screw 24, which is driven to rotate by the first servo motor 26. The outer surface of the first bidirectional screw 24 is symmetrically threaded with a first slider 23. The rotation of the first bidirectional screw 24 drives the first slider 23 to move. One side of the first slider 23 is fixedly connected to a first connecting rod 22. The movement of the first slider 23 drives the first connecting rod 22 to move, and one side of the first connecting rod 22 is fixedly connected to a first positioning plate 21. The movement of the first connecting rod 22 drives the first positioning plate 21 to move. A first slot 25 is provided on the outer surface of the upper mold 7. The first positioning plate 21 is movably engaged with the first slot 25. The first positioning plate 21 is inserted into the first slot 25 of the upper mold 7 to achieve fast and stable installation and fixation of the upper mold 7.

[0036] A second servo motor 203 is fixedly installed inside the workbench 1, and the output end of the second servo motor 203 is fixedly connected to the second bidirectional screw 202. The second servo motor 203 drives the second bidirectional screw 202, and the outer surface of the second bidirectional screw 202 is symmetrically threaded with a second slider 201. The second bidirectional screw 202 rotates to drive the second slider 201 to move. The first slider 23 is threaded in the opposite direction of the thread provided on the outer surface of the first bidirectional screw 24, and the second slider 201 is threaded in the opposite direction of the thread provided on the outer surface of the second bidirectional screw 202. The first slider 23 and the second slider 201 are both slidably connected to the inside of the workbench 1 to achieve synchronous movement of the two first sliders 23 and the two second sliders 201. A second connecting rod 29 is fixedly connected to one side of the second slider 201, and the second slider 201 moves The second connecting rod 29 is driven to move, and a second positioning plate 28 is fixedly connected to one side of the second connecting rod 29. The movement of the second connecting rod 29 drives the second positioning plate 28 to move. The cross-sectional shapes of the first positioning plate 21 and the second positioning plate 28 are both arc-shaped, and the first positioning plate 21 and the second positioning plate 28 are both anti-slip plates, so that the first positioning plate 21 and the second positioning plate 28 can fit tightly and firmly when they are engaged with the first slot 25 and the second slot 27. The outer surface of the lower mold 5 is provided with a second slot 27, and the second positioning plate 28 is movably engaged with the second slot 27. The second positioning plate 28 moves and is engaged in the second slot 27 to achieve stable installation of the lower mold 5. Compared with the traditional bolt installation method, this electric positioning structure can automatically adapt to the mold installation requirements, avoid loosening caused by equipment vibration, ensure that the mold maintains a precise position during the forging process, and thus ensure the valve forging accuracy.

[0037] The ejection assembly 3 includes a support plate 33, which is fixedly installed inside the workbench 1. A cylinder 32 is fixedly installed on the upper surface of the support plate 33, and the output end of the cylinder 32 is fixedly connected to a circular plate 31. A ring array of ejector rods 35 are fixedly installed on the upper surface of the circular plate 31. After the cylinder 32 is started, it pushes the circular plate 31 and the ejector rods 35 to move upward.

[0038] The workbench 1 and the lower die 5 are respectively provided with a first through slot 36 and a second through slot 34, and the corresponding ejector rods 35 are slidably connected with the corresponding first through slot 36 and second through slot 34. The ejector rods 35 pass through the first through slot 36 of the workbench 1 and the second through slot 34 of the lower die 5 to quickly eject the forged valve from the lower die 5. The ejector rods 35 distributed in a ring array improve the demoulding stability. Compared with the traditional manual removal method, the valve demoulding time is greatly shortened, the production efficiency of the forging equipment is significantly improved, the labor intensity is reduced, and the efficient automation of valve forging is realized.

[0039] The cooling assembly 4 includes symmetrically opened mounting grooves 42, and the mounting grooves 42 are symmetrically opened on both sides of the bracket 6. A heat dissipation fan 41 is fixedly installed inside the mounting grooves 42, and the corresponding heat dissipation fans 41 are arranged in parallel. By arranging parallel heat dissipation fans 41 in the mounting grooves 42 on both sides of the bracket 6, the forged valve in the lower mold 5 is cooled by air cooling. Compared with the traditional water cooling method, air cooling does not require complex water circulation equipment and a large amount of cooling water, which greatly reduces the cooling cost. At the same time, the air cooling structure is simple, and later maintenance only requires cleaning and repairing the heat dissipation fan 41, which reduces maintenance costs, thereby effectively reducing the comprehensive production cost of valve forging, and can achieve rapid cooling of the valve to ensure production continuity.

[0040] A high-strength valve forging process comprises the following steps:

[0041] S1. Control the hydraulic cylinder 8 to start. The output end of the hydraulic cylinder 8 drives the upper die 7 mounted on the mounting plate 11 to move downward through the mounting plate 11, and cooperates with the lower die 5 to forge the valve blank.

[0042] S2. Start the first servo motor 26. The output end of the first servo motor 26 drives the first bidirectional screw 24 to rotate. The rotation of the first bidirectional screw 24 drives the first slider 23 to move. The movement of the first slider 23 drives the first positioning plate 21 to move via the first connecting rod 22. The first positioning plate 21 is locked in the first slot 25, thereby achieving rapid installation and fixation of the upper mold 7.

[0043] S3. The second servo motor 203 is controlled to start. The output end of the second servo motor 203 drives the second bidirectional screw 202 to rotate. The rotation of the second bidirectional screw 202 drives the second slider 201 to move. The movement of the second slider 201 drives the second positioning plate 28 to move via the second connecting rod 29. The second positioning plate 28 is clamped in the second clamping groove 27, thereby realizing rapid installation and fixation of the lower mold 5.

[0044] S4. The control cylinder 32 is started. The output end of the cylinder 32 drives the circular plate 31 to move. The circular plate 31 drives the ejector rod 35 to move upward. The ejector rod 35 passes through the first through slot 36 and the second through slot 34 in sequence, and the forged valve in the lower die 5 is quickly demolded.

[0045] S5. The heat dissipation fan 41 in the mounting slot 42 is controlled to start, so as to achieve rapid air-cooling of the forged valve.

[0046] Working principle: First, install the upper mold 7 and the lower mold 5, clamp the upper mold 7 on the lower surface of the mounting plate 11, and then start the first servo motor 26 in the positioning assembly 2. The output end of the first servo motor 26 drives the first bidirectional screw 24 to rotate. Since the first slider 23 is threadedly sleeved on the outer surface of the first bidirectional screw 24 in the opposite thread direction, when the first bidirectional screw 24 rotates, the two first sliders 23 will move toward each other along the first bidirectional screw 24.

[0047] The first slider 23 drives the first positioning plate 21 to move through the first connecting rod 22 . When the first positioning plate 21 is engaged with the first slot 25 on the outer surface of the upper mold 7 , the upper mold 7 is firmly locked on the lower surface of the mounting plate 11 .

[0048] Similarly, the second servo motor 203 inside the workbench 1 drives the second bidirectional screw 202 to rotate, causing the second slider 201 , which is threaded on the second bidirectional screw 202 and has opposite thread directions, to move toward each other.

[0049] The second slider 201 drives the second positioning plate 28 through the second connecting rod 29. When the second positioning plate 28 is inserted into the second slot 27 on the outer surface of the lower mold 5, the lower mold 5 is fixed on the workbench 1. The arc-shaped and non-slip first positioning plate 21 and the second positioning plate 28 further enhance the stability and reliability of the mold positioning. Compared with the traditional bolt installation method, it effectively avoids the problem of the mold loosening due to vibration during the forging process.

[0050] After the positioning of the upper mold 7 and the lower mold 5 is completed, the metal blank heated to the appropriate temperature is placed in the mold cavity of the lower mold 5, and then the hydraulic cylinder 8 is started. The output end of the hydraulic cylinder 8 pushes the mounting plate 11 and the upper mold 7 downward. The guide groove 9 is used in conjunction with the guide block 10 to ensure the stability of the mounting plate 11 during movement, and is closed with the lower mold 5 to form a complete valve forging mold cavity. The hydraulic cylinder 8 continuously applies pressure to cause the metal blank to plastically deform under high temperature and high pressure, filling the mold cavity to complete the valve forging.

[0051] After forging is completed, the ejector assembly 3 starts working, the cylinder 32 on the support plate 33 is started, and its output end pushes the circular plate 31 upward, and the ejector rods 35 in the annular array on the circular plate 31 move upward accordingly.

[0052] The ejector rod 35 passes through the first through slot 36 of the workbench 1 and the second through slot 34 of the lower die 5, quickly ejecting the forged valve from the lower die 5, facilitating subsequent removal operations. Compared with the traditional manual demoulding method, the production efficiency is greatly improved.

[0053] The cooling component 4 uses air cooling to cool the valve after demolding. When the parallel cooling fan 41 is started, a strong airflow is generated to blow the lower mold 5 and the surface of the forging, and the heat is taken away by air convection to achieve rapid cooling. The air cooling system has a simple structure and does not require complex water circulation equipment. Compared with the water cooling method, it significantly reduces the cooling cost and subsequent maintenance cost, while ensuring the continuity of valve forging production.

[0054] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A high-strength valve forging device, comprising a workbench (1), characterized in that: A bracket (6) is fixedly mounted on the upper surface of the workbench (1), a hydraulic cylinder (8) is fixedly mounted on the inner wall of the bracket (6), an output end of the hydraulic cylinder (8) is fixedly connected to a mounting plate (11), an upper mold (7) is movably connected to the lower surface of the mounting plate (11), a lower mold (5) is movably connected to the upper surface of the workbench (1), a positioning assembly (2) for use with the upper mold (7) and the lower mold (5) is provided inside the workbench (1) and the mounting plate (11), an ejection assembly (3) is provided between the workbench (1) and the lower mold (5), and a cooling assembly (4) for use with the lower mold (5) is provided inside the bracket (6).

2. A high-strength valve forging device according to claim 1, characterized in that: The positioning assembly (2) includes a first servo motor (26), the first servo motor (26) is fixedly arranged inside the mounting plate (11), the output end of the first servo motor (26) is fixedly connected to a first bidirectional screw (24), the outer surface of the first bidirectional screw (24) is symmetrically threaded with a first slider (23), one side of the first slider (23) is fixedly connected to a first connecting rod (22), and one side of the first connecting rod (22) is fixedly connected to a first positioning plate (21), the outer surface of the upper mold (7) is provided with a first slot (25), the first positioning plate (21) and the first slot are connected to each other. (25) Movable clamping, a second servo motor (203) is fixedly installed inside the workbench (1), the output end of the second servo motor (203) is fixedly connected to a second bidirectional screw (202), and the outer surface of the second bidirectional screw (202) is symmetrically threaded with a second slider (201), one side of the second slider (201) is fixedly connected to a second connecting rod (29), one side of the second connecting rod (29) is fixedly connected to a second positioning plate (28), the outer surface of the lower mold (5) is provided with a second clamping groove (27), and the second positioning plate (28) is movably clamped with the second clamping groove (27).

3. The high-strength valve forging equipment according to claim 1, characterized in that: The ejection assembly (3) includes a support plate (33), the support plate (33) is fixedly mounted inside the workbench (1), a cylinder (32) is fixedly mounted on the upper surface of the support plate (33), and the output end of the cylinder (32) is fixedly connected to a circular plate (31), and an annular array of ejector rods (35) are fixedly mounted on the upper surface of the circular plate (31), and a first through groove (36) and a second through groove (34) are respectively opened inside the workbench (1) and the lower mold (5), and the corresponding ejector rods (35) are slidably connected to the corresponding first through groove (36) and second through groove (34).

4. The high-strength valve forging equipment according to claim 1, characterized in that: The cooling assembly (4) comprises symmetrically arranged mounting grooves (42), the mounting grooves (42) being symmetrically arranged on both sides of the bracket (6), and a heat dissipation fan (41) being fixedly installed inside the mounting grooves (42).

5. The high-strength valve forging equipment according to claim 1, characterized in that: Guide blocks (10) are symmetrically fixedly connected to both sides of the mounting plate (11), and guide grooves (9) used to match the guide blocks (10) are symmetrically opened on the inner wall of the bracket (6), and the guide blocks (10) are slidably connected to the guide grooves (9).

6. The high-strength valve forging equipment according to claim 2, characterized in that: The first slider (23) is threadedly sleeved on the outer surface of the first bidirectional screw (24) in the opposite direction of the thread, and the second slider (201) is threadedly sleeved on the outer surface of the second bidirectional screw (202) in the opposite direction of the thread.

7. The high-strength valve forging equipment according to claim 2, characterized in that: The first sliding block (23) and the second sliding block (201) are both slidably connected to the interior of the workbench (1).

8. The high-strength valve forging equipment according to claim 2, characterized in that: The cross-sectional shapes of the first positioning plate (21) and the second positioning plate (28) are both arc-shaped, and the first positioning plate (21) and the second positioning plate (28) are both anti-slip plates.

9. The high-strength valve forging equipment according to claim 4, characterized in that: The corresponding heat dissipation fans (41) are arranged in parallel.

10. The high-strength valve forging process according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, control the hydraulic cylinder (8) to start, the output end of the hydraulic cylinder (8) drives the upper die (7) installed on the mounting plate (11) to move downward through the mounting plate (11), and cooperates with the lower die (5) to achieve forging of the valve blank; S2, controlling the first servo motor (26) to start, the output end of the first servo motor (26) drives the first bidirectional screw (24) to rotate, the rotation of the first bidirectional screw (24) drives the first slider (23) to move, the movement of the first slider (23) drives the first positioning plate (21) to move through the first connecting rod (22), and the first positioning plate (21) is clamped in the first clamping groove (25), thereby realizing rapid installation and fixation of the upper mold (7); S3, controlling the second servo motor (203) to start, the output end of the second servo motor (203) drives the second bidirectional screw (202) to rotate, the rotation of the second bidirectional screw (202) drives the second slider (201) to move, the movement of the second slider (201) drives the second positioning plate (28) to move through the second connecting rod (29), and the second positioning plate (28) is clamped in the second clamping groove (27), thereby realizing rapid installation and fixation of the lower mold (5); S4, the control cylinder (32) is started, the output end of the cylinder (32) drives the circular plate (31) to move, the circular plate (31) drives the push rod (35) to move upward, the push rod (35) sequentially passes through the first through groove (36) and the second through groove (34), and the forged valve in the lower mold (5) is quickly demolded; S5, controlling the cooling fan (41) in the mounting groove (42) to start, so as to achieve rapid air-cooling of the forged valve.

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