Rapid forming die for high-alumina bricks

Abstract

The utility model discloses a high-alumina brick rapid forming die which comprises a die body, a cavity is formed in the upper side face of the die body, an adjustable forming head is arranged at the upper end of the die body, and the high-alumina brick rapid forming die further comprises a forming assembly. The forming assembly comprises a mounting frame, a sliding hole, a mounting column, an adjusting cavity and a lever, the mounting frame is arranged at the upper end of the mold, the sliding hole is formed in the middle of the mounting frame, the mounting column is slidably connected into the sliding hole, a forming head is arranged at the lower end of the mounting column, and the adjusting cavity is formed in the mounting frame; according to the rapid forming die for the high-alumina bricks, through combination of two driving modes, the forming process can be rapidly started to meet the small-batch or emergency production requirement, it can be guaranteed that pressure is uniform, efficient and accurate during large-scale production through a hydraulic system, and the production efficiency is improved. The requirements of different production scales and scenes are met, the forming period is effectively shortened, and the product quality and the production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of high alumina brick production technology, specifically a high alumina brick rapid prototyping mold. Background Technology

[0002] In modern industrial production, high-alumina bricks are an important refractory material, widely used in metallurgy, building materials, chemicals and many other fields. With the rapid development of industry, the demand for high-alumina bricks in various industries continues to grow. Not only are the requirements increasing in quantity, but also higher standards are being set for quality and specifications. The performance of high-alumina bricks directly affects the operational stability, service life and production efficiency of related industrial equipment. Therefore, efficient and high-quality high-alumina brick production technology has become a key focus of the industry.

[0003] Currently, in the production process of high-alumina bricks, the common molding die technologies mainly use simple stamping dies or traditional hydraulic forming dies. Stamping dies directly press the raw material into shape using external mechanical force, which is relatively simple to operate and has a certain degree of flexibility in small-batch production. The working process is roughly as follows: the high-alumina brick raw material is placed in the mold cavity, and the stamping head is driven down by an external mechanical device to gradually shape the raw material under pressure. Traditional hydraulic forming dies use a hydraulic system to provide stable pressure to press the raw material into shape inside the mold. During operation, the raw material is first loaded into the mold cavity, the hydraulic pump is started, and the hydraulic oil pushes the piston, which in turn drives the forming parts inside the mold to apply pressure to the raw material to complete the forming of the high-alumina brick.

[0004] However, existing high-alumina brick forming mold technology has some obvious shortcomings. It is prone to problems such as large local density differences and uneven pore distribution, which seriously affect product quality and service life. On the other hand, the driving methods of these molds are relatively simple and cannot meet the needs of different production scales and scenarios. In small-batch production or urgent production tasks, the manual and simple mechanical driving methods have slow start-up speeds and are difficult to respond quickly to production needs. In large-scale production, their production efficiency cannot meet the capacity requirements, resulting in a long overall production cycle and increased costs. To address these issues, we propose a rapid prototyping mold for high-alumina bricks. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a rapid prototyping mold for high-alumina bricks, which can effectively shorten the molding cycle, improve product quality and production efficiency, and effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-alumina brick rapid prototyping mold, including a mold, a cavity is provided on the upper side of the mold, an adjustable forming head is provided at the upper end of the mold, and a forming component is also included;

[0007] Molding component: It includes a mounting bracket, a sliding hole, a mounting post, an adjusting cavity, and a lever. The upper end of the mold is provided with a mounting bracket, the middle of which has a sliding hole. The mounting post is slidably connected inside the sliding hole, and the lower end of the mounting post is provided with a molding head. The interior of the mounting bracket has an adjusting cavity. The front and rear inner walls of the middle of the adjusting cavity are rotatably connected to a lever for pressing down the mounting post. The interior of the adjusting cavity is provided with a driving component for driving the lever. By combining the two driving methods, the molding process can be started quickly to meet the needs of small-batch or emergency production, while the hydraulic system can be used to ensure uniform, efficient, and precise pressure during large-scale production. This meets the needs of different production scales and scenarios, effectively shortening the molding cycle and improving product quality and production efficiency.

[0008] Furthermore, the molding assembly also includes a pressing block, a strip-shaped opening, and a lever. The pressing block is slidably connected to the left end of the rear inner wall of the adjustment cavity. The front end of the pressing block is fixedly connected to the middle rear end plane of the mounting column. A strip-shaped opening is provided at the right end of the pressing block. A lever is provided at the left end of the rear side of the lever. The rear end of the lever is located inside the lever, which realizes the effective transmission and conversion of force, and the pressure is more uniform and stable, which helps to improve the molding quality of high alumina bricks.

[0009] Furthermore, the drive assembly includes a rectangular groove, a drive frame, and a guide groove. A rectangular groove is provided at the right end of the top wall of the adjustment cavity. The drive frame is slidably connected inside the rectangular groove. Guide grooves are provided on both the front and rear sides of the upper end of the drive frame. A sliding column is slidably connected between the two guide grooves. The middle part of the sliding column is fixedly connected to the right end of the lever. The rectangular groove provides a stable sliding track for the drive frame, so that it can only move in a specified direction, ensuring the accuracy and stability of the movement of the entire drive assembly.

[0010] Furthermore, the drive assembly also includes a sloping groove, a movable frame, and a lifting column. The lower end of the drive frame has a sloping groove, and the right end of the bottom wall of the adjustment cavity is slidably connected to the movable frame. The upper left side of the movable frame has a lifting column, and the left end of the lifting column is located inside the sloping groove. The cooperation between the sloping groove, the lifting column, and the movable frame realizes the conversion of motion form and the optimization of force transmission.

[0011] Furthermore, the drive assembly also includes a drive hole and a drive column. The drive hole is provided at the right end of the front side of the mounting bracket. The drive column is slidably connected inside the drive hole. The rear end of the drive column is fixedly connected to the front side of the movable bracket. The drive hole provides guidance and positioning for the drive column.

[0012] Furthermore, the drive assembly also includes a rubber sleeve, which is fixedly fitted in the middle of the drive column. A sealing groove is formed in the middle of the inner wall of the drive hole, and a rubber ring is embedded inside the sealing groove. The inner arc surface of the rubber ring contacts the outer arc surface of the rubber sleeve. The rubber sleeve, sealing groove, and rubber ring cooperate to achieve a good sealing effect.

[0013] Furthermore, a push plate is slidably connected to the inner wall of the cavity, a demolding hole is provided on the bottom wall of the cavity, a rubber sealing ring is provided on the inner wall of the demolding hole, a hydraulic cylinder is installed on the lower side of the mold, the telescopic end of the hydraulic cylinder passes through the demolding hole and is fixedly connected to the lower side of the push plate, the outer arc surface of the telescopic end of the hydraulic cylinder is slidably connected to the inner arc surface of the rubber sealing ring, and the inlet of the hydraulic cylinder is connected to an external hydraulic oil pump, mainly used for demolding.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-alumina brick rapid prototyping mold has the following advantages:

[0015] This mold features two driving methods. It can directly apply pressure to the mounting column to move the forming head downwards, quickly extruding the raw material. This method is simple to operate and reacts rapidly, making it suitable for small-batch production or urgent production tasks where the forming process can be started quickly. Alternatively, it can be connected to an external hydraulic pump, utilizing the hydraulic system to provide stable and large pressure. The levers, along with components such as the lower pressure block and the pusher column, ensure that each forming operation is completed efficiently and accurately during large-scale production. The combination of these two driving methods meets the needs of different production scales and scenarios, effectively shortening the forming cycle of high-alumina bricks and greatly improving overall production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional view of the front side of the present invention.

[0018] Figure 3 This is an enlarged structural diagram of point A of this utility model;

[0019] Figure 4 This is a partial structural diagram of the lower pressure block of this utility model;

[0020] Figure 5 This is a partial structural schematic diagram of the drive frame of this utility model;

[0021] Figure 6 This is an enlarged structural schematic diagram of section B of this utility model;

[0022] Figure 7 This is a partial cross-sectional structural diagram of the mold of this utility model;

[0023] Figure 8 This is an enlarged structural diagram of point C in this utility model;

[0024] Figure 9 This is a schematic diagram of the front plane of this utility model.

[0025] In the diagram: 1. Mold, 101. Cavity, 2. Molding component, 21. Mounting bracket, 22. Sliding hole, 23. Mounting column, 24. Lower pressure block, 25. Strip opening, 26. Adjustment cavity, 27. Lever, 28. Push column, 3. Drive component, 31. Rectangular groove, 32. Drive frame, 33. Guide groove, 34. Inclined groove, 35. Moving frame, 36. Lifting column, 37. Drive hole, 371. Sealing groove, 372. Rubber ring, 38. Drive column, 39. Rubber sleeve, 4. Molding head, 5. Push plate, 6. Demolding hole, 7. Rubber sealing ring, 8. Hydraulic cylinder, 9. Sliding column. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-9 This embodiment provides a technical solution: a rapid prototyping mold for high-alumina bricks, including a mold 1. A cavity 101 is formed on the upper side of the mold 1. A push plate 5 is slidably connected to the inner wall of the cavity 101. A demolding hole 6 is formed on the bottom wall of the cavity 101. A rubber sealing ring 7 is provided on the inner wall of the demolding hole 6. A hydraulic cylinder 8 is installed on the lower side of the mold 1. The telescopic end of the hydraulic cylinder 8 passes through the demolding hole 6 and is fixedly connected to the lower side of the push plate 5. The outer arc surface of the telescopic end of the hydraulic cylinder 8 is slidably connected to the inner arc surface of the rubber sealing ring 7. The inlet of the hydraulic cylinder 8 is connected to an external hydraulic oil pump. Start-up of the hydraulic cylinder 8... The external hydraulic pump connected to the liquid port allows hydraulic oil to enter the hydraulic cylinder 8, pushing the telescopic end of the hydraulic cylinder 8 to extend upwards. The push plate 5 will move upwards as the telescopic end of the hydraulic cylinder 8 rises. During the upward movement of the push plate 5, the push plate 5 will smoothly push the formed high-alumina brick out of the cavity 101, completing the demolding. The rubber sealing ring 7 on the inner wall of the demolding hole 6 is slidably connected to the outer arc surface of the telescopic end of the hydraulic cylinder 8, effectively preventing debris from entering the mold during the demolding process, ensuring the cleanliness of the mold and the accuracy of the next use, and facilitating demolding. The upper end of the mold 1 is equipped with an adjustable forming head 4, and also includes a forming component 2.

[0028] Molding component 2 includes a mounting bracket 21, a sliding hole 22, a mounting post 23, an adjusting cavity 26, and a lever 27. The upper end of the mold 1 is provided with the mounting bracket 21. A sliding hole 22 is opened in the middle of the mounting bracket 21. The mounting post 23 is slidably connected inside the sliding hole 22. A molding head 4 is provided at the lower end of the mounting post 23. An adjusting cavity 26 is opened inside the mounting bracket 21. A lever 27 for pressing down the mounting post 23 is rotatably connected between the front and rear inner walls of the middle part of the adjusting cavity 26. Molding component 2 also includes a pressing block 24, a strip-shaped opening 25, and a lever 28. The pressing block 24 is slidably connected to the left end of the rear inner wall of the adjusting cavity 26. The front end of the pressing block 24 is fixedly connected to the rear end plane of the middle part of the mounting post 23. A strip-shaped opening 25 is opened at the right end of the pressing block 24. The lever 27... The rear side of the left end is provided with a lever 28, the rear end of which is located inside the lever 28. The drive assembly 3 includes a rectangular groove 31, a drive frame 32, and a guide groove 33. The right end of the top wall of the adjustment cavity 26 is provided with a rectangular groove 31. The drive frame 32 is slidably connected inside the rectangular groove 31. The upper end of the drive frame 32 is provided with guide grooves 33 on both the front and rear sides. A sliding column 9 is slidably connected between the two guide grooves 33. The middle part of the sliding column 9 is fixedly connected to the right end of the lever 27. The interior of the adjustment cavity 26 is provided with a drive assembly 3 for driving the lever 27. The drive assembly 3 also includes an inclined groove 34, a moving frame 35, and a lifting column 36. The lower end of the drive frame 32 is provided with an inclined groove 34. The right end of the bottom wall of the adjustment cavity 26 is slidably connected with the moving frame 35. The upper end of the moving frame 35 is provided with a guide groove 34. A lifting column 36 is provided on the left side, with its left end located inside the inclined groove 34. The drive assembly 3 also includes a drive hole 37 and a drive column 38. The drive hole 37 is provided on the right end of the front side of the mounting frame 21, and the drive column 38 is slidably connected inside the drive hole 37. The rear end of the drive column 38 is fixedly connected to the front side of the movable frame 35. The drive assembly 3 also includes a rubber sleeve 39, which is fixedly fitted in the middle of the drive column 38. A sealing groove 371 is provided in the middle of the inner wall of the drive hole 37, and a rubber ring 372 is embedded inside the sealing groove 371. The inner arc surface of the rubber ring 372 contacts the outer arc surface of the rubber sleeve 39. When it is necessary to perform molding operations on the high-alumina brick, downward pressure can be directly applied to the mounting column 23. Under the action of pressure... The mounting column 23 moves smoothly down along the sliding hole 22, pushing the forming head 4 downwards into the cavity 101 to extrude the high-alumina brick raw material particles inside. Simultaneously, the lower pressure block 24, fixedly connected to the mounting column 23, moves downwards. The rear end of the lever 28 on the lever 27 is located inside the strip-shaped opening 25. When the lower pressure block 24 moves downwards, the interaction between the strip-shaped opening 25 and the lever 28 causes the lever 27 to rotate around its pivot point. During this rotation, the right end of the lever 27 lifts upwards, and the sliding column 9, fixedly connected to the right end of the lever 27, slides within the guide groove 33 on the drive frame 32, thereby pushing the drive frame 32 to slide within the rectangular groove 31. As the drive frame 32 slides, the lifting column 36 moves within the inclined groove 34.The moving frame 35 slides against the bottom wall of the adjusting cavity 26, causing the entire drive assembly 3 to operate passively. Alternatively, the drive assembly 3 can be selected as an active drive. Connecting the external hydraulic pump's pipe to the drive hole 37, and starting the external hydraulic pump, hydraulic oil enters the drive hole 37, pushing the drive column 38 to slide within it. The movement of the drive column 38 causes the moving frame 35 to slide to the right against the bottom wall of the adjusting cavity 26. The lifting column 36 on the moving frame 35 moves along with it, moving within the inclined groove 34 at the lower end of the drive frame 32, causing the drive frame 32 to slide upward within the rectangular groove 31. This upward movement of the drive frame 32 causes the right end of the lever 27 to rotate upward via the sliding column 9. When the lever 27 rotates, its left end presses down, affecting the movement of the shifting column. The engagement of drive column 28 with the slot 25 of lower pressure block 24 pushes lower pressure block 24 downward, thereby causing mounting column 23 to slide downward along sliding hole 22. The forming head 4 at the lower end of mounting column 23 moves downward accordingly, extruding and molding the high-alumina brick raw material placed in cavity 101. During this process, the rubber sleeve 39 fixedly fitted in the middle of drive column 38 is in close contact with the rubber ring 372 in the sealing groove 371 of the inner wall of drive hole 37, providing a good seal and ensuring that hydraulic oil does not leak, thus guaranteeing the stability and reliability of the hydraulic drive. When molding high-alumina bricks is required, downward pressure can be directly applied to mounting column 23. Under pressure, mounting column 23 will move smoothly downward along sliding hole 22, pushing forming head 4 downward as well. Entering the cavity 101, the high-alumina brick raw material particles inside the cavity 101 are extruded. At this time, the pressing block 24, which is fixedly connected to the mounting column 23, will move down synchronously. The rear end of the lever 28 on the lever 27 is located inside the strip opening 25. When the pressing block 24 moves down, the lever 27 will rotate around its pivot point through the cooperation of the strip opening 25 and the lever 28. During the rotation of the lever 27, its right end will lift up, and the sliding column 9, which is fixedly connected to the right end of the lever 27, will slide in the guide groove 33 on the drive frame 32, thereby pushing the drive frame 32 to slide in the rectangular groove 31. When the drive frame 32 slides, the lifting column 36 moves in the inclined groove 34, driving the moving frame 35 to slide on the bottom wall of the adjusting cavity 26, thereby making the entire drive assembly 3 In passive operation, drive assembly 3 can also be selected as the active drive. The external hydraulic pump's pipeline is connected to drive hole 37. After starting the external hydraulic pump, hydraulic oil enters drive hole 37, pushing drive column 38 to slide within drive hole 37. The movement of drive column 38 causes moving frame 35 to slide to the right on the bottom wall of adjustment chamber 26. Lifting column 36 on moving frame 35 moves together with moving frame 35. Lifting column 36 moves within the inclined groove 34 at the lower end of drive frame 32, causing drive frame 32 to slide upward within rectangular groove 31. The upward sliding of drive frame 32 causes the right end of lever 27 to rotate upward via sliding column 9. When lever 27 rotates, its left end presses down, pushing the lower pressure block 24 downward through the cooperation of push column 28 and the slot 25 of lower pressure block 24.This causes the mounting column 23 to slide downwards along the sliding hole 22, and the forming head 4 at the lower end of the mounting column 23 moves downwards accordingly, extruding and molding the high-alumina brick raw material placed in the cavity 101. During this process, the rubber sleeve 39 fixedly fitted in the middle of the drive column 38 is in close contact with the rubber ring 372 in the sealing groove 371 on the inner wall of the drive hole 37, providing a good sealing effect, ensuring that the hydraulic oil does not leak, and guaranteeing the stability and reliability of the hydraulic drive.

[0029] The working principle of the high-alumina brick rapid prototyping mold provided by this utility model is as follows: When it is necessary to perform a molding operation on the high-alumina brick, downward pressure can be directly applied to the mounting column 23. Under the action of pressure, the mounting column 23 will move smoothly down along the sliding hole 22, pushing the molding head 4 to move down together and enter the cavity 101 to squeeze the high-alumina brick raw material particles inside the cavity 101. At this time, the lower pressure block 24, which is fixedly connected to the mounting column 23, will move down synchronously. The rear end of the lever 27's push post 28 is located inside the strip opening 25. When the lower pressure block 24 moves down, through the cooperation of the strip opening 25 and the push post 28, the lever 27 will be driven to rotate around its rotation fulcrum. During the rotation process of the lever 27... In the middle, its right end will lift upward, and the sliding column 9, which is fixedly connected to the right end of the lever 27, will slide in the guide groove 33 on the drive frame 32, thereby pushing the drive frame 32 to slide in the rectangular groove 31. When the drive frame 32 slides, the lifting column 36 moves in the inclined groove 34, driving the moving frame 35 to slide on the bottom wall of the adjustment cavity 26, so that the entire drive assembly 3 operates passively. Alternatively, the drive assembly 3 can be selected as an active drive. The pipeline of the external hydraulic pump is connected to the drive hole 37. After the external hydraulic oil pump is started, the hydraulic oil enters the drive hole 37, pushing the drive column 38 to slide in the drive hole 37. The movement of the drive column 38 will drive the moving frame 35 to slide to the right on the bottom wall of the adjustment cavity 26, and the lifting column 36 on the moving frame 35 will slide to the right. The lifting column 36 moves together with the moving frame 35. The lifting column 36 moves within the inclined groove 34 at the lower end of the drive frame 32, causing the drive frame 32 to slide upward within the rectangular groove 31. The upward sliding of the drive frame 32 drives the right end of the lever 27 to rotate upward via the sliding column 9. When the lever 27 rotates, its left end presses down, pushing the lower pressure block 24 downward through the cooperation of the push column 28 and the slot 25 of the lower pressure block 24. This, in turn, drives the mounting column 23 to slide downward along the sliding hole 22. The forming head 4 at the lower end of the mounting column 23 moves downward accordingly, extruding and molding the high-alumina brick raw material placed in the cavity 101. During this process, the rubber sleeve 39 fixedly fitted in the middle of the drive column 38 is tightly fitted against the inner wall of the drive hole 37. The rubber ring 372 inside the sealing groove 371 makes tight contact, providing a good seal and ensuring that the hydraulic oil does not leak, thus guaranteeing the stability and reliability of the hydraulic drive. Finally, the external hydraulic oil pump connected to the inlet of the hydraulic cylinder 8 is started, and the hydraulic oil enters the hydraulic cylinder 8, pushing the telescopic end of the hydraulic cylinder 8 to extend upward. The push plate 5 will move upward as the telescopic end of the hydraulic cylinder 8 rises. During the upward movement of the push plate 5, the push plate 5 will smoothly push the formed high-alumina brick out of the cavity 101, completing the demolding. The rubber sealing ring 7 on the inner wall of the demolding hole 6 is slidably connected to the outer arc surface of the telescopic end of the hydraulic cylinder 8, effectively preventing debris from entering the mold during the demolding process, ensuring the cleanliness of the mold and the accuracy for the next use.

[0030] It is worth noting that the hydraulic cylinder 8 disclosed in the above embodiments can be from the HSG series.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high alumina brick rapid forming mold, comprising a mold (1), a cavity (101) is formed on the upper side of the mold (1), and an adjustable forming head (4) is arranged at the upper end of the mold (1), characterized in that: It also includes molding components (2); The molding component (2) includes a mounting bracket (21), a sliding hole (22), a mounting post (23), an adjusting cavity (26), and a lever (27). The upper end of the mold (1) is provided with a mounting bracket (21), the middle part of the mounting bracket (21) is provided with a sliding hole (22), the interior of the sliding hole (22) is slidably connected with a mounting post (23), the lower end of the mounting post (23) is provided with a molding head (4), the interior of the mounting bracket (21) is provided with an adjusting cavity (26), the front and rear inner walls of the middle part of the adjusting cavity (26) are rotatably connected with a lever (27) for pressing down the mounting post (23), and the interior of the adjusting cavity (26) is provided with a driving component (3) for driving the lever (27).

2. The high alumina brick rapid forming mold according to claim 1, characterized in that: The forming component (2) also includes a pressing block (24), a strip opening (25), and a lever (28). The pressing block (24) is slidably connected to the left end of the rear inner wall of the adjusting cavity (26). The front end of the pressing block (24) is fixedly connected to the middle rear end plane of the mounting column (23). The right end of the pressing block (24) has a strip opening (25). The left end of the rear side of the lever (27) is provided with a lever (28). The rear end of the lever (28) is located inside the lever (28).

3. The high alumina brick rapid forming mold according to claim 1, characterized in that: The drive assembly (3) includes a rectangular groove (31), a drive frame (32), and a guide groove (33). The right end of the top wall of the adjustment cavity (26) is provided with a rectangular groove (31). The drive frame (32) is slidably connected inside the rectangular groove (31). The front and rear sides of the upper end of the drive frame (32) are provided with guide grooves (33). A sliding column (9) is slidably connected between the two guide grooves (33). The middle part of the sliding column (9) is fixedly connected to the right end of the lever (27).

4. The rapid prototyping mold for high-alumina bricks according to claim 3, characterized in that: The drive assembly (3) further includes a sloping groove (34), a movable frame (35), and a lifting column (36). The lower end of the drive frame (32) is provided with a sloping groove (34). The right end of the bottom wall of the adjustment cavity (26) is slidably connected to the movable frame (35). The upper left side of the movable frame (35) is provided with a lifting column (36). The left end of the lifting column (36) is located inside the sloping groove (34).

5. The high alumina brick rapid forming mold according to claim 4, characterized in that: The drive assembly (3) also includes a drive hole (37) and a drive column (38). The drive hole (37) is provided at the right end of the front side of the mounting bracket (21). The drive column (38) is slidably connected inside the drive hole (37). The rear end of the drive column (38) is fixedly connected to the front side of the movable frame (35).

6. The high alumina brick rapid forming mold according to claim 5, characterized in that: The drive assembly (3) also includes a rubber sleeve (39). The rubber sleeve (39) is fixedly fitted in the middle of the drive column (38). A sealing groove (371) is opened in the middle of the inner wall of the drive hole (37). A rubber ring (372) is embedded in the sealing groove (371). The inner arc surface of the rubber ring (372) contacts the outer arc surface of the rubber sleeve (39).

7. The high alumina brick rapid forming mold according to claim 1, characterized in that: The inner wall of the cavity (101) is slidably connected to a push plate (5). The bottom wall of the cavity (101) is provided with a demolding hole (6). The inner wall of the demolding hole (6) is provided with a rubber sealing ring (7). A hydraulic cylinder (8) is installed on the lower side of the mold (1). The telescopic end of the hydraulic cylinder (8) passes through the demolding hole (6) and is fixedly connected to the lower side of the push plate (5). The outer arc surface of the telescopic end of the hydraulic cylinder (8) is slidably connected to the inner arc surface of the rubber sealing ring (7). The inlet of the hydraulic cylinder (8) is connected to an external hydraulic oil pump.

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