Large high-speed hot forging press

Abstract

The invention relates to a large-scale high-speed hot forging press machine, and relates to forging and pressing equipment in the field of mechanical manufacturing, the press machine comprises a base, a sliding seat and a forging and pressing driving part, and by arranging an air return cavity, an air outlet cavity and a corresponding fan, flying chips generated in the forging and pressing process are effectively controlled. Specifically, an air return fan in an air return cavity sucks air in an air return channel into the air return cavity, the air is exhausted through an exhaust pipe, and dust is effectively filtered and cleaned in cooperation with a dust filter bag and a vibration device. In addition, the air outlet cavity in the sliding seat realizes invisible protection of the air curtain between the sliding seat and the base through the air outlet fan. The equipment achieves the effects of optimizing the working environment, improving the production efficiency and prolonging the service life of the equipment.

Description

Technical Field

[0001] The present application relates to the technical field of forging equipment, and in particular to a large-scale high-speed hot forging press. Background Art

[0002] Hot die forging presses are used for die forging and finishing of large quantities of ferrous and non-ferrous metals in the manufacturing industries of automobiles, tractors, internal combustion engines, ships, aviation, mining machinery, petroleum machinery, hardware tools, etc.

[0003] The forging equipment in the related technology usually includes a base, a slide is slidably arranged above the base, and a forging drive is also arranged above the slide. The forging drive is fixedly connected to the base through a bracket, and a forging head is arranged at the bottom of the slide. The slide is driven by the forging drive to slide up and down to realize the forging processing of the workpiece by the forging head.

[0004] The above-mentioned related technologies have the following defects: the forging process is accompanied by debris splashing. In order to reduce the impact of debris splashing on workers, the related technologies usually set a liftable baffle for protection. However, the processing process requires continuous lifting and lowering, which is inconvenient and the protection range is limited, so it needs to be improved. Summary of the invention

[0005] In order to improve the protection effect against debris splashing, the present application provides a large-scale high-speed hot forging press.

[0006] The large-scale high-speed hot forging press provided in this application adopts the following technical solution: A large-scale high-speed hot forging press comprises a base, a slide seat is slidably arranged above the base, and a forging drive member is also arranged above the slide seat, the forging drive member is fixedly connected to the base through a bracket, a forging head is arranged at the bottom of the slide seat, and the slide seat is driven by the forging drive member to slide up and down to realize the forging processing of the workpiece by the forging head, the base is provided with a return air chamber, the top of the return air chamber is penetrated by a return air channel, and a return air fan for sucking the air inside the return air channel into the return air chamber is arranged inside the return air chamber; the slide seat is provided with an outlet air chamber, the bottom of the outlet air chamber is penetrated by an outlet air channel, and the outlet air fan for blowing the air inside the outlet air chamber into the outlet air channel and finally blowing it toward the return air channel is arranged inside the outlet air chamber.

[0007] By adopting the above technical solution, the air around the slide is blown downward, and the air around the base is sucked upward, forming an invisible air curtain around the space between the slide and the base. When the debris tends to splash, it will change the direction of movement under the action of the air curtain or be directly sucked into the return air channel and discharged downward, effectively preventing the splashing debris from directly shooting at the staff, thereby improving the safety protection effect for the staff.

[0008] Preferably, an exhaust pipe is provided at the bottom of the return air chamber, and a dust filter bag is sleeved at the bottom of the exhaust pipe.

[0009] By adopting the above technical solution, a dust filter bag is provided at the bottom of the exhaust duct, which can effectively collect debris and dust sucked in by the return air duct, prevent them from escaping into the air, and improve the cleanliness and safety of the working environment.

[0010] Preferably, a vibration spring is connected to the bottom of the exhaust pipe, and the vibration spring is connected to a vibration ring. The vibration spring and the vibration ring are both located inside the dust filter bag, and the outer wall of the vibration ring fits the inner wall of the dust filter bag.

[0011] By adopting the above technical solution, the vibration spring can convert the forging impact on the base into the up and down swing of the vibration ring, so that the vibration ring continuously beats the inner wall of the dust filter bag, effectively removing debris and dust attached to the dust filter bag, preventing blockage and keeping the dust filter bag unobstructed, ensuring the normal operation of the return air system.

[0012] Preferably, an anti-slip ring is provided at the bottom of the outer side wall of the exhaust duct, the bag opening of the dust filter bag is sleeved on the outside of the anti-slip ring, and a clamp is also buckled at the bag opening of the dust filter bag, and the clamp is located above the anti-slip ring.

[0013] By adopting the above technical solution, the dust filter bag can be easily installed and firmly fixed. Specifically, the anti-drop ring design allows the dust filter bag to be firmly mounted on it to prevent it from falling off during use; and the setting of the clamp further strengthens the fixing effect of the dust filter bag, ensuring its stability and reliability during long-term use. This not only improves the safety of the equipment, but also simplifies the operation process of maintaining and replacing the dust filter bag.

[0014] Preferably, a movable plate is arranged above the base, the bottom of the movable plate extends into the return air chamber and the return air channel is formed in the gap between the movable plate and the return air chamber, a support block is also arranged below the movable plate, the support block abuts between the bottom wall of the return air chamber and the bottom wall of the movable plate, and an elastic pad is also arranged between the support block and the movable plate.

[0015] By adopting the above technical solution, the setting of the movable plate makes the overall structure of the base easier to process. At the same time, the elastic pad can provide a certain buffering effect for the movable plate during the forging process, reducing the direct impact between the movable plate and the base, thereby effectively protecting the equipment components and extending the overall service life of the equipment.

[0016] Preferably, the movable plate is connected to a vibration rod, the vibration rod passes through the base and the exhaust pipe and can slide up and down, and a vibration bottom plate is provided at the bottom of the vibration rod, and the vibration bottom plate is first fitted with the bottom wall of the dust filter bag.

[0017] By adopting the above technical solution, the vibration of the base will drive the vibration rod and the vibration bottom plate to vibrate, so that the vibration bottom plate can be used to beat the bottom of the dust filter bag to further promote the separation of dust hanging on the wall of the dust filter bag. This helps to improve the cleaning efficiency of the dust filter bag, reduce dust accumulation, and ensure long-term stable operation of the equipment.

[0018] Preferably, the air outlet channel is a plurality of through holes evenly distributed along the circumference of the slide seat, a diffusion nozzle is arranged inside the air outlet channel, and the air outlet directions of the plurality of diffusion nozzles on the same side are all located in the same plane.

[0019] By adopting the above technical solution, the provision of a plurality of through holes makes the airflow more uniform everywhere, and the diffusion nozzle can be used to compensate for the gaps between adjacent through holes, so that the formed air curtain has a more comprehensive coverage range and effectively prevents debris from splashing.

[0020] Preferably, the diffusion nozzle comprises a mounting section and a diffusion section, the mounting section is connected to the air outlet channel, the diffusion section is located outside the air outlet channel, and the inner edge width of the diffusion section decreases in a direction away from the mounting section.

[0021] By adopting the above technical solution, the inner edge width of the diffusion section decreases as it moves away from the installation section, so that the airflow gradually accelerates when passing through the diffusion nozzle, thereby enhancing the strength and coverage of the air curtain, effectively preventing debris from splashing and causing harm to workers. At the same time, this design can also improve the uniformity and stability of the airflow, ensuring that an effective protective barrier is formed around the entire slide.

[0022] Preferably, an adjustment rod is provided through the diffusion section along the width direction, a diffusion spring is sleeved on the outer side of a section of the adjustment rod located inside the diffusion section, both ends of the diffusion spring are abutted against the inner wall of the diffusion section, and both ends of the adjustment rod located outside the diffusion section are threadedly sleeved with adjustment nuts, and the adjustment nuts are abutted against the outer wall of the diffusion section.

[0023] By adopting the above technical solution, the diffusion spring can ensure that the outer wall of the diffusion section and the adjusting nut are always in a tight state. When the adjusting nut moves outward relative to the middle of the adjusting rod, the inner edge of the diffusion section can be enlarged, and vice versa. The actual flow rate at the air outlet channel can be adjusted by adjusting the width of the inner edge of the diffusion section to control the overall airflow intensity of the air curtain.

[0024] Preferably, an outer wall of the mounting section is provided with a mounting convex ring, an inner wall of the air outlet channel is provided with a mounting ring groove, and the mounting convex ring is located inside the mounting ring groove.

[0025] By adopting the above technical solution, the mounting protrusion provided on the outer wall of the mounting section cooperates with the mounting ring groove provided on the inner wall of the air outlet channel, thereby realizing convenient disassembly and assembly of the diffusion nozzle, and facilitating maintenance and replacement.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The synchronous operation of the air outlet fan and the return air fan forms an invisible air curtain around the space between the slide and the base, effectively changing the movement direction of the debris, and even sucking it directly into the return air channel for discharge, significantly reducing the threat of debris to operators and improving safety; 2. The exhaust pipe and dust filter bag connected to the bottom of the return air chamber can effectively collect the inhaled debris and prevent it from escaping into the air again, further ensuring the cleanliness of the working environment; 3. The return air channel formed by the gap between the movable plate and the return air chamber, combined with the design of the support block and the elastic pad, not only simplifies the processing technology of the base, but also provides a buffering effect for the movable plate during the forging process, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application; Figure 2 This is a structural diagram for illustrating the connection relationship between the base and the slide seat in the embodiment of the present application; Figure 3 This is a structural schematic diagram for reflecting the flow direction of the air curtain in the embodiment of the present application; Figure 4 This is a structural schematic diagram for illustrating the connection relationship between the dust filter bag and the base in the embodiment of the present application; Figure 5 It is a structural schematic diagram used to illustrate the connection relationship between the diffusion nozzle and the slide seat in the embodiment of the present application.

[0028] In the figure: 1. Base; 10. Return air chamber; 11. Return air channel; 12. Return air fan; 2. Forging drive parts; 21. Forging head; 3. Sliding seat; 30. Air outlet cavity; 31. Air outlet channel; 32. Air outlet fan; 4. movable plate; 41. elastic pad; 42. supporting block; 5. Exhaust duct; 51. Dust filter bag; 52. Anti-slip ring; 53. Hoop; 6. Vibration spring; 61. Vibration ring; 7. Vibration rod; 71. Vibration base plate; 8. diffusion nozzle; 81. mounting section; 811. mounting convex ring; 812. mounting ring groove; 82. diffusion section; 821. adjustment rod; 822. diffusion spring; 823. adjustment nut. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.

[0030] The inventor of the present application found that the forging equipment in the related art usually includes a base, a slide seat is slidably arranged above the base, and a forging drive member is also arranged above the slide seat, the forging drive member is fixedly connected to the base through a bracket, a forging head is arranged at the bottom of the slide seat, and the slide seat is driven by the forging drive member to slide up and down to realize the forging process of the workpiece by the forging head. The above-mentioned related art has the following defects: the forging process is accompanied by debris splashing. In order to reduce the impact of debris splashing on workers, the related art usually sets a liftable baffle for protection, but the operation needs to be continuously lifted and lowered during the processing, which is inconvenient and the protection range is limited, so it needs to be improved.

[0031] To this end, the present application mainly adopts a scheme to achieve the goal of blowing the air around the slide downwards and sucking the air around the base downwards through the synchronous operation of the air outlet fan and the return air fan, thereby forming an invisible air curtain around the space between the slide and the base. When the debris tends to splash, it will change its direction of movement under the action of the air curtain, or part of it will be directly sucked into the return air channel and discharged downwards, so that the splashing debris will not be directly shot at the staff, so as to achieve the effect of protecting the staff. The present application is further described in detail below.

[0032] Reference Figure 1 The large-scale high-speed hot forging press provided in the embodiment of the present application includes a square base 1, and the base 1 includes a metal frame and a plurality of legs installed at the bottom. The metal frame is made of high-strength steel and has good rigidity and stability. A forging drive member 2 is also fixedly connected to the top of the base 1 through a bracket. In this embodiment, a hydraulic cylinder is used for the forging drive member 2. A slide 3 is arranged between the forging drive member 2 and the base 1, and the slide 3 is slidably connected to the base 1 through a guide rod. A forging head 21 is fixedly installed at the bottom of the slide 3 by bolts, and the slide 3 is driven by the forging drive member 2 to slide up and down to realize the lifting of the forging head 21. In actual use, the workpiece is placed on the base 1 to perform forging processing on the workpiece using the forging head 21.

[0033] Reference Figure 2The slide 3 is provided with an air outlet cavity 30 inside, the top of the air outlet cavity 30 is connected with the air above the slide 3, the bottom of the air outlet cavity 30 is evenly distributed with a plurality of air outlet channels 31 along the periphery of the slide 3, the air outlet channels 31 are through-holes penetrating downward, and an air outlet fan 32 is installed on the top of the air outlet cavity 30. In this embodiment, the air outlet fan 32 is an axial flow fan with moderate power, and the air volume can be adjusted by a controller.

[0034] The top of the base 1 is grooved downward to form a return air chamber 10, and a movable plate 4 is inserted inside the return air chamber 10. The movable plate 4 is a rectangular steel plate made of cast iron with good flatness and bearing capacity. The bottom of the movable plate 4 extends into the return air chamber 10 and the top is higher than the top wall of the base 1. The gap between the side wall of the movable plate 4 and the inner wall of the return air chamber 10 forms a return air channel 11, and the return air channel 11 is an annular groove type. A return air fan 12 is provided inside the return air chamber 10 for sucking the air inside the return air channel 11 into the return air chamber 10. In this embodiment, the return air fan 12 is a centrifugal fan with moderate power and low noise. It is installed at one end of the return air chamber 10 and the speed can be adjusted through the control panel. An elastic pad 41 and a support block 42 are also arranged in sequence below the movable plate 4. The elastic pad 41 is a rubber gasket, and the support block 42 is a hard metal material. The elastic pad 41 is installed between the support block 42 and the movable plate 4 to play a shock-absorbing and protective role. The bottom of the support block 42 abuts against the bottom wall of the return air chamber 10 to stably support the movable plate 4 and ensure the stability of the actual air flow cross section of the return air chamber 10 .

[0035] The return air chamber 10 has a bottom opening extending to the bottom wall of the base 1 and is fixed with an exhaust pipe 5 by bolts. The exhaust pipe 5 is a circular pipe made of stainless steel with a smooth surface without burrs. A dust filter bag 51 is set at the bottom of the exhaust pipe 5. The dust filter bag 51 is made of high-density nylon cloth and has good filtering performance and wear resistance.

[0036] Reference Figure 3 , the return air fan 12 and the outlet air fan 32 work synchronously to form a closed air circulation system. The outlet air fan 32 is used to blow the air on the top of the slide 3 downward, and finally suck it into the return air chamber 10 from the return air channel 11 to form a frame-shaped air curtain between the base 1 and the slide 3. This continuous air curtain can effectively block the splashing of debris, guide it into the return air chamber 10 under the base 1, and finally suck it into the dust filter bag 51 through the return air fan 12, so as to protect the safety of the operator. In addition, the high-density nylon fabric in the dust filter bag 51 can effectively intercept most of the fine particles, and only a small amount of clean air is discharged through the dust filter bag 51. The dust filter bag 51 can be replaced or cleaned regularly to maintain efficient filtering capabilities.

[0037] Reference Figure 4The bottom of the outer wall of the exhaust pipe 5 is also integrally formed with an anti-slip ring 52. The bag opening of the dust filter bag 51 is sleeved on the outside of the anti-slip ring 52 and fixed with a clamp 53 to ensure good sealing. The clamp 53 is made of stainless steel, has strong corrosion resistance, and is easy to disassemble and clean. The clamp 53 stably clamps the bag opening of the dust filter bag 51 on the outside of the exhaust pipe 5 to prevent the dust filter bag 51 from falling off.

[0038] Reference Figure 4 When the forging head 21 performs forging operation, the movable plate 4 will vibrate with the base 1, but due to the buffering effect of the elastic pad 41, the impact force between the movable plate 4 and the base 1 is alleviated, reducing the wear of the equipment. At the same time, the design of the movable plate 4 makes the overall structure of the base 1 easier to process and simplifies the manufacturing process.

[0039] Reference Figure 4 , a vibration spring 6 and a vibration ring 61 are connected to the bottom of the exhaust duct 5, realizing the automatic dust cleaning function. The vibration spring 6 is a coil spring made of spring steel, with high elasticity and fatigue life. The vibration ring 61 is a circular metal ring with smooth inner and outer walls, which fits tightly with the inner wall of the dust filter bag 51. The vibration spring 6 and the vibration ring 61 are both located inside the dust filter bag 51, and the outer diameter of the vibration ring 61 is slightly smaller than the inner diameter of the dust filter bag 51 to ensure that it can swing freely inside the dust filter bag 51. When the base 1 is hit by the forging head 21, vibration will be generated, and this vibration will be transmitted to the vibration ring 61 through the vibration spring 6, causing the vibration ring 61 to swing up and down, thereby slapping the inner wall of the dust filter bag 51 to help remove dust attached to the dust filter bag 51.

[0040] Reference Figure 4 , the bottom wall of the movable plate 4 is also connected with a vibration rod 7 and a vibration bottom plate 71, which further enhances the dust cleaning effect. The vibration rod 7 is a cylindrical steel pipe made of carbon steel. The vibration rod 7 passes through the base 1 and the exhaust pipe 5 and can slide up and down therein. The vibration bottom plate 71 is a circular steel plate made of cast iron and is installed at the bottom of the vibration rod 7. The vibration bottom plate 71 is in contact with the bottom wall of the dust bag 51. When the movable plate 4 vibrates, the bottom of the dust bag 51 can be patted by the up and down movement of the vibration rod 7, which helps to remove the dust accumulated on the side wall of the dust bag 51. When the base 1 is hit by the forging head 21, the vibration rod 7 and the vibration bottom plate 71 will also vibrate. This vibration can be directly transmitted to the bottom of the dust bag 51 to help remove the dust accumulated in the dust bag 51. Compared with the cleaning method that only relies on the vibration spring 6 and the vibration ring 61, this method is more direct and effective, and can better ensure the cleanliness of the dust bag 51.

[0041] Reference Figure 5A diffusion nozzle 8 is also installed at the bottom of the air outlet channel 31. The air outlet end of the diffusion nozzle 8 is flat, so that the air flow is thinner and faster. The air outlet channels 31 are actually located around the slide 3. Therefore, in this embodiment, the air outlet directions of the diffusion nozzles 8 on the same side are adjusted to be in the same plane, so that an air curtain can be formed around the slide 3, forming a frame-shaped air curtain as a whole.

[0042] The diffusion nozzle 8 includes an installation section 81 and a diffusion section 82. The installation section 81 is made of rubber and is connected to the air outlet channel 31. The outer wall of the installation section 81 is integrally formed with a mounting convex ring 811. Correspondingly, the inner wall of the air outlet channel 31 is prefabricated with a mounting ring groove 812. After installation, the mounting convex ring 811 is located inside the mounting ring groove 812, and thereafter, the diffusion nozzle 8 is not easy to fall off without human intervention.

[0043] The diffusion section 82 is located outside the air outlet channel 31, and the inner edge width of the diffusion section 82 decreases as it moves away from the mounting section 81. The diffusion section 82 is provided with an adjustment rod 821 running through it along its width direction, and the adjustment rod 821 can slide relative to the diffusion section 82. A diffusion spring 822 is sleeved on the outer side of a section of the adjustment rod 821 located inside the diffusion section 82, and both ends of the diffusion spring 822 are against the inner wall of the diffusion section 82. Both ends of the adjustment rod 821 located outside the diffusion section 82 are threadedly sleeved with adjustment nuts 823, and the adjustment nuts 823 are against the outer wall of the diffusion section 82. The diffusion spring 822 can ensure that the outer wall of the diffusion section 82 and the adjusting nut 823 are always in tight contact with each other. When the adjusting nut 823 moves outward relative to the middle of the adjusting rod 821, the inner edge of the diffusion section 82 can be enlarged, and vice versa. The actual flow rate at the air outlet channel 31 can be adjusted by adjusting the width of the inner edge of the diffusion section 82 to control the overall airflow intensity of the air curtain.

[0044] The implementation principle of this embodiment is: Through the synergistic effect of the return air fan 12 and the outlet air fan 32, an effective air curtain protection system is formed. The biggest advantage of this system is that there is no need to frequently manually adjust the protective device, which reduces the complexity of operation. At the same time, the existence of the air curtain can not only effectively prevent large pieces of debris from splashing, but also capture fine dust, greatly improving safety and work efficiency. In addition, the design of the entire system is simple and easy to maintain, and it is suitable for various application scenarios of large-scale high-speed hot forging presses.

[0045] In addition, by adding a dust filter bag 51, the dust removal effect is further improved. The dust filter bag 51 can not only effectively intercept large pieces of debris, but also capture tiny dust to ensure the cleanliness of the workshop environment. At the same time, the design of the dust filter bag 51 is simple and easy, and does not require complex additional equipment, thereby reducing maintenance costs. This improvement makes the entire system more complete and more suitable for long-term use.

[0046] Secondly, the design of the vibration spring 6 and the vibration ring 61 realizes the automatic dust cleaning function. This innovation not only reduces the workload of manually cleaning the dust filter bag 51, but also improves the reliability and automation of the system. The vibration ring 61 can efficiently remove the dust accumulated on the inner wall of the dust filter bag 51 during the vibration process, avoid the occurrence of blockage, and ensure the continuous and stable operation of the system. This improvement makes the system more intelligent and suitable for long-term continuous operation.

[0047] Furthermore, by introducing the movable plate 4 and the elastic pad 41, the flexibility and safety of the equipment are significantly improved. The design of the movable plate 4 makes the formation of the return air channel 11 more flexible and can be adjusted according to actual conditions. The elastic pad 41 provides a certain buffer during the forging process, avoiding damage caused by hard collision and extending the service life of the equipment. This improvement makes the entire system more adaptable to various working conditions and improves the overall performance.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A large-scale high-speed hot forging press, comprising a base (1), a slide seat (3) being slidably arranged above the base (1), and a forging driving member (2) being arranged above the slide seat (3), the forging driving member (2) being fixedly connected to the base (1) through a bracket, a forging head (21) being arranged at the bottom of the slide seat (3), the slide seat (3) being driven by the forging driving member (2) to slide up and down so as to realize forging processing of a workpiece by the forging head (21), characterized in that: The base (1) is provided with a return air chamber (10), a return air channel (11) is provided through the top of the return air chamber (10), and a return air fan (12) is provided inside the return air chamber (10) for sucking air inside the return air channel (11) into the return air chamber (10); the sliding seat (3) is provided with an outlet air chamber (30), an outlet air channel (31) is provided through the bottom of the outlet air chamber (30), and an outlet air fan (32) is provided inside the outlet air chamber (30) for blowing air inside the outlet air chamber (30) into the outlet air channel (31) and finally blowing air toward the return air channel (11).

2. A large-scale high-speed hot forging press according to claim 1, characterized in that: The bottom of the return air chamber (10) is connected to an exhaust pipe (5), and the bottom of the exhaust pipe (5) is sleeved with a dust filter bag (51).

3. A large-scale high-speed hot forging press according to claim 2, characterized in that: The bottom of the exhaust pipe (5) is connected to a vibration spring (6), and the vibration spring (6) is connected to a vibration ring (61). The vibration spring (6) and the vibration ring (61) are both located inside the dust filter bag (51), and the outer wall of the vibration ring (61) is in contact with the inner wall of the dust filter bag (51).

4. A large-scale high-speed hot forging press according to claim 2, characterized in that: An anti-slip ring (52) is provided at the bottom of the outer wall of the exhaust pipe (5), the bag opening of the dust filter bag (51) is sleeved on the outside of the anti-slip ring (52), and a clamp (53) is also buckled at the bag opening of the dust filter bag (51), and the clamp (53) is located above the anti-slip ring (52).

5. A large-scale high-speed hot forging press according to claim 2, characterized in that: A movable plate (4) is arranged above the base (1), the bottom of the movable plate (4) extends into the return air chamber (10), and the return air channel (11) is formed at the gap between the movable plate (4) and the return air chamber (10), and a support block (42) is also arranged below the movable plate (4), the support block (42) abuts between the bottom wall of the return air chamber (10) and the bottom wall of the movable plate (4), and an elastic pad (41) is also arranged between the support block (42) and the movable plate (4).

6. A large-scale high-speed hot forging press according to claim 5, characterized in that: The movable plate (4) is connected to a vibration rod (7), the vibration rod (7) passes through the base (1) and the exhaust pipe (5) and can slide up and down, and a vibration bottom plate (71) is arranged at the bottom of the vibration rod (7), and the vibration bottom plate (71) is firstly fitted with the bottom wall of the dust filter bag (51).

7. A large-scale high-speed hot forging press according to claim 1, characterized in that: The air outlet channel (31) is a plurality of through holes evenly distributed along the circumference of the slide seat (3), and a diffusion nozzle (8) is arranged inside the air outlet channel (31), and the air outlet directions of the plurality of diffusion nozzles (8) on the same side are all located in the same plane.

8. A large-scale high-speed hot forging press according to claim 7, characterized in that: The diffusion nozzle (8) comprises a mounting section (81) and a diffusion section (82); the mounting section (81) is connected to the air outlet channel (31); the diffusion section (82) is located outside the air outlet channel (31); and the inner edge width of the diffusion section (82) decreases in a direction away from the mounting section (81).

9. A large-scale high-speed hot forging press according to claim 8, characterized in that: The diffusion section (82) is provided with an adjustment rod (821) penetrating along the width direction; a diffusion spring (822) is sleeved on the outer side of a section of the adjustment rod (821) located inside the diffusion section (82); both ends of the diffusion spring (822) are in contact with the inner wall of the diffusion section (82); both ends of the adjustment rod (821) located outside the diffusion section (82) are threadedly sleeved with adjustment nuts (823); the adjustment nuts (823) are in contact with the outer wall of the diffusion section (82).

10. A large-scale high-speed hot forging press according to claim 8, characterized in that: The outer wall of the mounting section (81) is provided with a mounting protruding ring (811), the inner wall of the air outlet channel (31) is provided with a mounting annular groove (812), and the mounting protruding ring (811) is located inside the mounting annular groove (812).

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