Vertical extrusion machine for special alloy rods

Abstract

The application relates to the technical field of vertical extruders, and discloses a special alloy bar vertical extruder which comprises a first machine base, a pushing plate is slidably connected to the left side surface of the first machine base, an extrusion rod is slidably connected to the left side surface of the pushing plate, a plurality of cross beams are fixedly connected to the left side surface of the first machine base, a second machine base is fixedly connected between the outer side surfaces of the four cross beams, a pressure receiving bin is slidably connected to one side between the four cross beams, the second machine base is located at the left side of the pressure receiving bin, a feeding and discharging unit is slidably arranged on the top surface of the second machine base, the feeding and discharging unit comprises a motor which is fixedly connected to the inner wall of the second machine base, a first ball screw rod which is fixedly connected to the output end of the motor, and a moving frame which is slidably connected to the outer wall of the first ball screw rod through threads; through the mutual cooperation between the structures, the feeding and discharging work of the mold can be quickly completed in a short time, the waste mold can be effectively stored, and the post-service personnel can conveniently handle the waste mold.

Description

Technical Field

[0001] This invention relates to the field of vertical extrusion press technology, and more particularly to a vertical extrusion press for special alloy bars. Background Technology

[0002] The vertical extrusion press for special alloy bars is designed for hot extrusion forming of difficult-to-deform special alloys such as titanium alloys and high-temperature alloys. Its vertical extrusion structure ensures stable and uniform introduction and filling of the forming cavity of high-temperature billets, strictly controlling the metal flow trajectory and completely avoiding problems such as billet flow deviation, eddies, and turbulence. It minimizes internal residual stress during bar forming, suppressing internal defects such as cracks, shrinkage cavities, porosity, and segregation, ensuring dense bar structure and dimensional accuracy. Simultaneously, it flexibly adapts to the characteristics of different alloy materials and adjustable extrusion speeds, deeply optimizing the metal rheological state and improving forming quality and product qualification rate.

[0003] Most vertical extrusion presses still rely on manual loading and unloading, lacking an integrated mechanism for automatic conveying, positioning, and gripping. During manual handling, the billet posture needs to be repeatedly adjusted and aligned with the die center. This not only depends on the operator's experience but is also prone to problems such as "loading deviation and unloading jamming," leading to repeated rework of a single loading and unloading process.

[0004] Therefore, it is necessary to provide a special alloy bar vertical extrusion press to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a vertical extrusion press for special alloy bars, which solves the problem that most vertical extrusion presses still rely on manual loading and unloading and lack an integrated mechanism for automatic conveying, positioning, and gripping. During manual handling, the billet posture needs to be repeatedly adjusted and aligned with the die center, which not only depends on the operator's experience but is also prone to problems such as "loading deviation and unloading jamming," leading to repeated rework of a single loading and unloading process.

[0006] According to the technical solution provided by the present invention: a special alloy bar vertical extrusion press includes a first base, a push plate slidably connected to the left side of the first base, an extrusion rod slidably connected to the left side of the push plate, a plurality of crossbeams fixedly connected to the left side of the first base, a second base fixedly connected between the outer sides of the four crossbeams, a pressure chamber slidably connected to one side between the four crossbeams, the second base being located to the left of the pressure chamber, and a loading and unloading unit slidably disposed on the top surface of the second base;

[0007] The loading and unloading unit includes a motor fixedly connected to the inner wall of the second base, a first ball screw fixedly connected to the output end of the motor, a movable frame slidably connected to the outer wall of the first ball screw via threads, a mold assembly slidably connected to the top surface of the movable frame, a unloading assembly slidably connected to the top surface of the second base, the unloading assembly being located in front of the movable frame, an loading assembly fixedly connected to the right side of the second base, and the loading assembly being located in front of the unloading assembly, and a connecting assembly fixedly connected to the front side of the mold assembly.

[0008] Preferably, the unloading assembly includes a movable plate fixedly connected to the front side of the second base, a first push plate slidably connected to the right side of the movable plate, a movable circular plate fixedly connected to the left side of the first push plate, a through hole opened in the inner wall of the movable circular plate, a first limiting plate slidably connected to the inner wall of the movable circular plate, a first spring fixedly connected between the first push plate and the first limiting plate, a second ball screw fixedly connected to one end of the first spring in the first limiting plate, a slider slidably connected to the outer wall of the second ball screw through a thread, a first gear fixedly connected to the outer wall of the slider, a first toothed plate slidably connected to the inner wall of the movable plate, and a toothed groove matching the first gear opened on the bottom surface of the first toothed plate, an unloading box fixedly connected to the right side of the second base, and an unloading port opened on the left side of the unloading box.

[0009] Preferably, a storage box is fixedly connected to the bottom surface of the feeding box, a movable box is slidably connected to the inner side of the storage box, and a limiting slide rod that is fixedly connected to the second machine base is slidably connected to the inner wall of the movable plate.

[0010] Preferably, the mold assembly includes a housing slidably connected to the top surface of the movable frame, a force-bearing ring slidably connected to the inner wall of the housing, a placement chamber slidably connected to the right side of the force-bearing ring, an outer mold slidably connected to the inner wall of the placement chamber, an inner mold connected to the left end of the outer mold, and the inner mold slidably connected to the placement chamber.

[0011] Preferably, the connecting assembly includes a fixed curved plate fixedly connected to the front side of the movable plate, two insert plates fixedly connected to the front side of the housing, and a through hole matching the fixed curved plate is opened on the rear side of the fixed curved plate.

[0012] Preferably, the feeding assembly includes a storage box fixedly connected to the front side of the unloading box. The storage box has a cavity inside. A slide plate is slidably connected to the left side of the storage box. Movable curved plates are fixedly connected to the upper and lower sides of the slide plate. Two movable curved plates are slidably connected to the inner wall of the storage box. A short shaft is slidably connected to the inner wall of the storage box, and the short shaft is located on the front side of the slide plate. A second gear is fixedly connected to the outer wall of the short shaft. A connecting shaft is fixedly connected to the right side of the short shaft. A belt is slidably connected to the outer wall of the connecting shaft. A sleeve is slidably connected to the inner wall of the belt on the side away from the connecting shaft. A third ball screw is slidably connected to the inner wall of the sleeve through a thread. A second push plate is rotatably connected to the right end of the third ball screw. Hook assemblies are rotatably connected to the upper and lower sides of the slide plate, and the hook assemblies are located on the left side of the movable curved plates. The upper and lower sides of the outer shell have slots for matching the rain-hanging plates.

[0013] Preferably, the right side of the slide plate is provided with a toothed groove that matches the short shaft, and the top surface of the storage box is rotatably connected to a material changing plate via a shaft.

[0014] Preferably, the hook assembly includes a hanging plate rotatably connected by a shaft, and the hanging plate is located on the upper and lower sides of the slide plate. A second limiting plate is slidably connected to the side of the hanging plate away from the slide plate, and the second limiting plate is fixedly connected to the storage box. A second spring is fixedly connected between the slide plate and the hanging plate.

[0015] The positive and progressive effects of this application are as follows:

[0016] The vertical extrusion press for special alloy bars provided in this invention has the following advantages:

[0017] 1. Through the cooperation between the structures, the loading and unloading of molds can be completed quickly in a short time. At the same time, manual feeding is not required in a short time, and waste molds can be effectively collected for easy disposal by staff later.

[0018] 2. Through the mutual cooperation between the structures, the die feeding is convenient, reducing the tediousness of manual operation, thereby improving the working efficiency of the extruder.

[0019] 3. The material loading of the mold can be completed quickly through the cooperation between the structures, thereby improving the working efficiency of the extruder. The positioning work can also be completed quickly through the shape and structure of the outer mold. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a three-dimensional structural diagram of the loading and unloading unit of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of the feeding component of the present invention.

[0023] Figure 4 This is a schematic diagram of the material feeding assembly of the present invention.

[0024] Figure 5 This is a schematic diagram of the mold assembly structure of the present invention.

[0025] Figure 6 This is a schematic diagram of the combined structure of the feeding component and the loading component of the present invention.

[0026] Figure Descriptions: 1. First base; 11. Push plate; 12. Crossbeam; 13. Second base; 14. Extrusion roller; 15. Pressure chamber; 2. Loading / unloading unit; 21. Motor; 22. Mold assembly; 221. Outer shell; 222. Force ring; 223. Placement chamber; 224. Outer mold; 225. Inner mold; 23. First ball screw; 24. Connecting assembly; 241. Fixed curved plate; 242. Insert plate; 25. Unloading assembly; 251. Moving plate; 252. First push plate; 253. Moving circular plate; 254. First limiting plate; 255. First spring; 256. Second ball screw; 257. Slider ; 258. First toothed plate; 259. First gear; 2510. Limiting slide bar; 2511. Feed box; 2512. Feeding port; 2513. Storage box; 2514. Moving box; 26. Moving frame; 27. Feeding assembly; 271. Storage box; 272. Material changing plate; 273. Slide plate; 274. Hook assembly; 2741. Hanging plate; 2742. Second limiting plate; 2743. Second spring; 275. Short shaft; 276. Second gear; 277. Connecting shaft; 278. Belt; 279. Sleeve; 2710. Third ball screw; 2711. Second push plate; 2712. Moving curved plate. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0028] like Figure 1-6As shown, the present invention is a special alloy bar vertical extrusion press; it includes: a first machine base 1, a push plate 11 slidably connected to the left side of the first machine base 1, an extrusion roller 14 slidably connected to the left side of the push plate 11, a plurality of crossbeams 12 fixedly connected to the left side of the first machine base 1, a second machine base 13 fixedly connected between the outer sides of the four crossbeams 12, a pressure chamber 15 slidably connected to one side between the four crossbeams 12, the second machine base 13 being located to the left of the pressure chamber 15, and a loading and unloading unit 2 slidably disposed on the top surface of the second machine base 13;

[0029] The loading and unloading unit 2 includes a motor 21 fixedly connected to the inner wall of the second base 13, a first ball screw 23 fixedly connected to the output end of the motor 21, a movable frame 26 slidably connected to the outer wall of the first ball screw 23 via a thread, a mold assembly 22 slidably connected to the top surface of the movable frame 26, a unloading assembly 25 slidably connected to the top surface of the second base 13, the unloading assembly 25 being located in front of the movable frame 26, an loading assembly 27 fixedly connected to the right side of the second base 13, and the loading assembly 27 being located in front of the unloading assembly 25, and a connecting assembly 24 fixedly connected to the front side of the mold assembly 22;

[0030] Specifically, when using this device, the raw material alloy rod is conveyed to the pressure chamber 15 and the push plate 11 through the feeding structure. Then, the extrusion roller 14 is controlled to move downward, followed by the push plate 11 being controlled to move to the left, pushing the rod into the pressure chamber 15. Then, the push plate 11 and the pressure chamber 15 move to the left synchronously, and the extrusion roller 14 applies pressure to the rod, so that the raw material becomes a qualified semi-finished rod after passing through the structure of the mold assembly 22. After the device finishes processing a section of rod, the mold needs to be replaced. The structure of the loading and unloading unit 2 can be activated, and the motor 21 drives the rod to complete the process. The first ball screw 23 rotates, driving the moving frame 26 to move. As the moving frame 26 moves on the top surface of the crossbeam 12, it drives the mold assembly 22 to move. The moving frame 26 carries the mold assembly 22 to the structural range of the unloading assembly 25. The mold assembly 22 drives part of the structure of the unloading assembly 25 to move through the connecting assembly 24. After the unloading assembly 25 moves a certain distance, the unloading work is completed through the cooperation of the structural straight knee arrows. Then, the mold assembly 22 moves to the range of the loading assembly 27 to complete the loading work. Then, the motor 21 is started to reverse and reset the structure for the next extrusion work.

[0031] Preferably, the feeding assembly 25 includes a movable plate 251 fixedly connected to the front side of the second base 13. A first push plate 252 is slidably connected to the right side of the movable plate 251, and a movable circular plate 253 is fixedly connected to the left side of the first push plate 252. A through hole is opened in the inner wall of the movable circular plate 253, and a first limiting plate 254 is slidably connected to the inner wall of the movable circular plate 253. A first spring 255 is fixedly connected between the first push plate 252 and the first limiting plate 254. The first limiting plate 254 is based on the first spring. A second ball screw 256 is fixedly connected to one end of a spring 255. A slider 257 is slidably connected to the outer wall of the second ball screw 256 via a thread. A first gear 259 is fixedly connected to the outer wall of the slider 257. A first toothed plate 258 is slidably connected to the inner wall of a moving plate 251. The bottom surface of the first toothed plate 258 is provided with tooth grooves that match the first gear 259. A feeding box 2511 is fixedly connected to the right side of the second machine base 13. A feeding port 2512 is provided on the left side of the feeding box 2511.

[0032] Specifically, when using the feeding assembly 25, the moving frame 26 moves forward, driving the moving plate 251 to move via the connecting assembly 24. During this movement, the first toothed plate 258 and the second base 13 are fixed. The first toothed plate 258 drives the first gear 259 to rotate via the toothed grooves on its bottom surface. The first gear 259 drives the slider 257 to rotate, causing the second ball screw 256 to move to the right. The second ball screw 256 is connected to the first limiting plate 254 via the moving circular plate 253. The first push plate 252 moves to the right, inserting itself into the mold assembly 22 and continuing to move. After contacting the mold, the second ball screw 256 continues to move under the action of the first spring 255 and applies pressure to the first push plate 252. Then, after the mold moves to the left side of the feeding box 2511, the mold falls into the feeding box 2511 through the feeding port 2512 under the push of the first push plate 252, completing the feeding work. Through the cooperation between the structures, the feeding of the mold is convenient, reducing the tediousness of manual operation, thereby improving the working efficiency of the extruder.

[0033] Ideally, a storage box 2513 is fixedly connected to the bottom surface of the feeding box 2511, a movable box 2514 is slidably connected to the inner side of the storage box 2513, and a limiting slide rod 2510 fixedly connected to the second base 13 is slidably connected to the inner wall of the movable plate 251.

[0034] Specifically, after the mold falls into the material box 2511 through the material outlet 2512, it continues to slide into the storage box 2513 and is stored in the moving box 2514. The moving box 2514 can be pulled out completely from the front of the storage box 2513, which makes it convenient for staff to handle the discarded mold. The structure of the limit slide bar 2510, combined with the sliding structure of the moving plate 251, makes the moving plate 251 move relatively smoothly.

[0035] Preferably, the mold assembly 22 includes a housing 221 slidably connected to the top surface of the movable frame 26, a force-bearing ring 222 slidably connected to the inner wall of the housing 221, a placement chamber 223 slidably connected to the right side of the force-bearing ring 222, an outer mold 224 slidably connected to the inner wall of the placement chamber 223, an inner mold 225 connected to the left end of the outer mold 224, and the inner mold 225 slidably connected to the placement chamber 223;

[0036] Specifically, by setting the mold to an assembly plug-in mode, the mold is easy to disassemble. By setting the outer mold 224 and the inner mold 225 to a multi-curved structure combination, the stability of the outer mold 224 during use is ensured. At the same time, the plug-in method facilitates the disassembly of the unloading component 25 and the assembly of the loading component 27.

[0037] Preferably, the connecting component 24 includes a fixed curved plate 241 fixedly connected to the front side of the movable plate 251, two insert plates 242 fixedly connected to the front side of the housing 221, and a through hole matching the fixed curved plate 241 is opened on the rear side of the fixed curved plate 241.

[0038] Specifically, by setting a fixed curved plate 241 on the front side of the moving plate 251 and using it in conjunction with the insert plate 242 on the front side of the outer casing 221, the structural axis of the first push plate 252 is aligned with the axis of the placement chamber 223 when the structure of the outer casing 221 moves the structure of the moving plate 251 driven by the fixed curved plate 241, thereby ensuring the smoothness and accuracy of the device's operation.

[0039] Preferably, the feeding assembly 27 includes a storage box 271 fixedly connected to the front side of the unloading box 2511. The storage box 271 has an internal cavity. A sliding plate 273 is slidably connected to the left side of the storage box 271. Movable curved plates 2712 are fixedly connected to both the upper and lower sides of the sliding plate 273. Two movable curved plates 2712 are slidably connected to the inner wall of the storage box 271. A short shaft 275 is slidably connected to the inner wall of the storage box 271, and the short shaft 275 is located on the front side of the sliding plate 273. A second gear 276 is fixedly connected to the outer wall of the short shaft 275. A connecting shaft 277 is fixedly connected to the right side of the short shaft 275. The outer wall of the connecting shaft 277 is slidably connected to... A belt 278 is connected, and a sleeve 279 is slidably connected to the inner wall of the belt 278 away from the connecting shaft 277. A third ball screw 2710 is slidably connected to the inner wall of the sleeve 279 through a thread. A second push plate 2711 is rotatably connected to the right end face of the third ball screw 2710. Hook assemblies 274 are rotatably connected to both the upper and lower sides of the slide plate 273, and the hook assemblies 274 are located on the left side of the movable curved plate 2712. The upper and lower sides of the outer shell 221 are provided with slots that match the rain guard plate 2741. The right side of the slide plate 273 is provided with a tooth groove that matches the short shaft 275. The top surface of the storage box 271 is rotatably connected to the material changing plate 272 through a shaft.

[0040] Specifically, as the outer casing 221 moves forward, it drives the structure of the sliding plate 273 to move. The sliding plate 273 maintains smooth movement through the moving curved plate 2712. A groove matching the moving curved plate 2712 is provided on the inner side of the storage box 271. During movement, the sliding plate 273 drives the second gear 276 through the toothed groove on the right side. The second gear 276 drives the connecting shaft 277 through the short shaft 275. A ratchet structure is provided between the short shaft 275 and the connecting shaft 277. During the reset process of the sliding plate 273, the connecting shaft 277 cannot be moved through the short shaft 275. The connecting shaft 277 drives the sleeve 279 to rotate through the belt 278. The sleeve 279 drives the third ball screw through the thread. 2710 moves, and the third ball screw 2710 drives the structure of the second push plate 2711 to push the mold stored inside the storage box 271, pushing the mold into the inner mold 225 structure. After the new outer mold 224 structure is placed inside the bin 223, the motor 21 structure controls the moving frame 26 to drive the structure of the outer shell 221 to reset. The structure of the outer shell 221 drives the structure of the slide plate 273 to reset through the structure of the hook assembly 274. The rear side of the slide plate 273 has a curved structure. During the movement, the protruding part of the mold structure is pressed into the interior of the storage box 271, waiting for the next replacement. Through the cooperation between the structures, the mold can be loaded quickly, thereby improving the working efficiency of the extruder. And through the shape structure of the outer mold 224, the positioning work can be completed quickly.

[0041] Preferably, the hook assembly 274 includes a hanging plate 2741 rotatably connected by a shaft, and the hanging plate 2741 is located on the upper and lower sides of the slide plate 273. A second limiting plate 2742 is slidably connected to the side of the hanging plate 2741 away from the slide plate 273, and the second limiting plate 2742 is fixedly connected to the storage box 271. A second spring 2743 is fixedly connected between the slide plate 273 and the hanging plate 2741.

[0042] Specifically, when the outer shell 221 pushes the slide plate 273 to move, it drives the hanging plate 2741 to move. During the movement, the hanging plate 2741 disengages from the limit of the second limiting plate 2742. Under the cooperation of the second spring 2743, the protruding part of the rear side of the hanging plate 2741 inserts into the slots opened on the upper and lower sides of the outer shell 221, so that when the outer shell 221 moves backward, it can drive the slide plate 273 to move. After the hanging plate 2741 contacts the second limiting plate 2742, it resets, so that the second limiting plate 2742 separates from the outer shell 221, thereby completing this work.

[0043] The work process is as follows:

[0044] When this device is used, the raw material alloy rod is conveyed to the pressure chamber 15 and the push plate 11 through the feeding structure. Then, the extrusion roller 14 is controlled to move downward, and then the push plate 11 is controlled to move to the left, pushing the rod into the pressure chamber 15. Then, the push plate 11 and the pressure chamber 15 move to the left synchronously. The extrusion roller 14 applies pressure to the rod, so that the raw material becomes a qualified semi-finished rod after passing through the structure of the mold assembly 22. After the device finishes processing a section of rod, the mold needs to be replaced. The structure of the loading and unloading unit 2 can be activated. The motor 21 drives the first ball screw 23 to rotate, which drives the moving frame 26 to move. During the movement of the moving frame 26 on the top surface of the crossbeam 12, it carries... The moving mold assembly 22 moves, and the moving frame 26 carries the mold assembly 22 to the structural range of the unloading assembly 25. The mold assembly 22 drives part of the unloading assembly 25 to move through the connecting assembly 24. After the unloading assembly 25 moves a certain distance, the unloading work is completed through the cooperation of the structural straight knee arrows. Then, the mold assembly 22 moves to the range of the loading assembly 27 to complete the loading work. Then, the motor 21 is started to reverse and reset the structure for the next extrusion work. Through the cooperation between the structures, the unloading work of the mold can be completed quickly in a short time. At the same time, manual feeding is not required in a short time, and the discarded molds can be effectively collected for later disposal by the staff.

[0045] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A vertical extrusion press for special alloy bars, characterized in that, Includes a first base (1), a push plate (11) is slidably connected to the left side of the first base (1), an extrusion roller (14) is slidably connected to the left side of the push plate (11), multiple crossbeams (12) are fixedly connected to the left side of the first base (1), a second base (13) is fixedly connected between the outer sides of the four crossbeams (12), a pressure chamber (15) is slidably connected to one side between the four crossbeams (12), the second base (13) is located to the left of the pressure chamber (15), and a loading and unloading unit (2) is slidably provided on the top surface of the second base (13); The loading and unloading unit (2) includes a motor (21) fixedly connected to the inner wall of the second base (13), a first ball screw (23) fixedly connected to the output end of the motor (21), a movable frame (26) slidably connected to the outer wall of the first ball screw (23) via a thread, a mold assembly (22) slidably connected to the top surface of the movable frame (26), a unloading assembly (25) slidably connected to the top surface of the second base (13), the unloading assembly (25) is located in front of the movable frame (26), a loading assembly (27) is fixedly connected to the right side of the second base (13), and the loading assembly (27) is located in front of the unloading assembly (25), and a connecting assembly (24) is fixedly connected to the front side of the mold assembly (22).

2. A special alloy bar vertical extrusion press as claimed in claim 1, characterized in that: The unloading assembly (25) includes a movable plate (251) fixedly connected to the front side of the second base (13). A first push plate (252) is slidably connected to the right side of the movable plate (251), and a movable circular plate (253) is fixedly connected to the left side of the first push plate (252). A through hole is opened in the inner wall of the movable circular plate (253), and a first limiting plate (254) is slidably connected to the inner wall of the movable circular plate (253). A first spring (255) is fixedly connected between the first push plate (252) and the first limiting plate (254). The first limiting plate (254) is based on the first spring ( 255) One end is fixedly connected to a second ball screw (256), the outer wall of the second ball screw (256) is slidably connected to a slider (257) by a thread, the outer wall of the slider (257) is fixedly connected to a first gear (259), the inner wall of the moving plate (251) is slidably connected to a first toothed plate (258), and the bottom surface of the first toothed plate (258) is provided with a toothed groove that matches the first gear (259). The right side of the second base (13) is fixedly connected to a feeding box (2511), and the left side of the feeding box (2511) is provided with a feeding port (2512).

3. A vertical extrusion press for special alloy bars as described in claim 2, characterized in that: A storage box (2513) is fixedly connected to the bottom of the feeding box (2511). A movable box (2514) is slidably connected to the inner side of the storage box (2513). A limiting slide rod (2510) is slidably connected to the inner wall of the movable plate (251) and fixedly connected to the second base (13).

4. A vertical extrusion press for special alloy bars as described in claim 1, characterized in that: The mold assembly (22) includes a housing (221) slidably connected to the top surface of the movable frame (26), a force ring (222) slidably connected to the inner wall of the housing (221), a placement chamber (223) slidably connected to the right side of the force ring (222), an outer mold (224) slidably connected to the inner wall of the placement chamber (223), an inner mold (225) connected to the left end of the outer mold (224), and the inner mold (225) slidably connected to the placement chamber (223).

5. A vertical extrusion press for special alloy bars as described in claim 4, characterized in that: The connecting assembly (24) includes a fixed curved plate (241) fixedly connected to the front side of the movable plate (251), two insert plates (242) fixedly connected to the front side of the housing (221), and a through hole matching the fixed curved plate (241) is opened on the rear side of the fixed curved plate (241).

6. A vertical extrusion press for special alloy bars as claimed in claim 1, characterized in that: The feeding assembly (27) includes a storage box (271) fixedly connected to the front side of the unloading box (2511). The storage box (271) has a cavity inside. A slide plate (273) is slidably connected to the left side of the storage box (271). Movable curved plates (2712) are fixedly connected to both the upper and lower sides of the slide plate (273). Two movable curved plates (2712) are slidably connected to the inner wall of the storage box (271). A short shaft (275) is slidably connected to the inner wall of the storage box (271). The short shaft (275) is located on the front side of the slide plate (273). A second gear (276) is fixedly connected to the outer wall of the short shaft (275). The right side of the short shaft (275) A connecting shaft (277) is fixedly connected. A belt (278) is slidably connected to the outer wall of the connecting shaft (277). A sleeve (279) is slidably connected to the inner wall of the belt (278) away from the connecting shaft (277). A third ball screw (2710) is slidably connected to the inner wall of the sleeve (279) by a thread. A second push plate (2711) is rotatably connected to the right end face of the third ball screw (2710). Hook assemblies (274) are rotatably connected to both the upper and lower sides of the slide plate (273). The hook assembly (274) is located on the left side of the movable curved plate (2712). The upper and lower sides of the outer shell (221) are provided with matching slots for the rain hanger (2741).

7. A vertical extrusion press for special alloy bars as claimed in claim 6, characterized in that: The right side of the slide plate (273) is provided with a toothed groove that matches the short shaft (275), and the top surface of the storage box (271) is connected to the material changing plate (272) via a shaft.

8. A vertical extrusion press for special alloy bars as claimed in claim 6, characterized in that: The hook assembly (274) includes a hanging plate (2741) rotatably connected by a shaft, and the hanging plate (2741) is located on the upper and lower sides of the slide plate (273). A second limiting plate (2742) is slidably connected to the side of the hanging plate (2741) away from the slide plate (273), and the second limiting plate (2742) is fixedly connected to the storage box (271). A second spring (2743) is fixedly connected between the slide plate (273) and the hanging plate (2741).

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