Anti-deformation refractory brick forming die

By improving the demolding and forming mechanism design, the problem of uneven force distribution when demolding multiple bricks in the existing mold has been solved, realizing stable demolding and efficient forming of multiple bricks, and improving the production efficiency and quality of refractory bricks.

CN224116386UActive Publication Date: 2026-04-14SHANDONG TAINAI REFRACTORY MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

When demolding multiple refractory bricks, the ejection device of the existing refractory brick molding die cannot accurately match the position and stress requirements of each brick, resulting in uneven stress on the bricks and easy edge damage.

Method used

The design employs a combination of demolding and forming mechanisms, including baffles, sliding blocks, drive components, cylinders, push rods, and partitions. By precisely controlling the movement of the sliding blocks and the rotation of the baffles, stable demolding of multiple bricks is achieved. At the same time, hydraulic cylinders and guide rods are used to ensure the verticality and precision of the pressing process. The partitions are made of high-temperature resistant alloy steel and ceramic composite materials to improve structural strength and heat insulation performance.

Benefits of technology

This technology enables non-destructive demolding of multiple bricks, improves production efficiency, ensures the molding quality of the bricks and the stability of the mold, and reduces the deformation and breakage of the bricks in high-temperature environments.

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Abstract

The utility model relates to the technical field of refractory brick forming, and discloses an anti-deformation refractory brick forming mold which comprises a base, a demolding mechanism is arranged in the base, and the top end of the base is fixedly connected with a forming mechanism. The demolding mechanism comprises a baffle, the bottom of the baffle is rotatably connected to the interior of the base, a convex block is fixedly connected to the front end of the baffle, a sliding block is slidably connected to the outer wall of the convex block, a driving assembly is rotatably connected to the front end of the sliding block, and a protective shell is fixedly connected to the rear end of the base. And an air cylinder II is fixedly connected to the interior of the protective shell. In the utility model, the driving assembly reversely works to rotate and open the baffle to form the opening, then the cylinder II works, the push rod is driven by the connecting plate to push the push plate, and the push plate pushes the formed refractory brick out of the opening under the guidance of the partition plate, so that a plurality of brick bodies are simultaneously separated from the cavity, and the lossless demoulding of the plurality of brick bodies is realized.
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Description

Technical Field

[0001] This utility model relates to the field of refractory brick molding technology, and in particular to a deformation-resistant refractory brick molding mold. Background Technology

[0002] Refractory bricks are a type of building material with high-temperature resistance. They are mainly made of refractory clay or other refractory raw materials and are mostly rectangular in shape. They are fired at high temperatures and have high refractoriness, load softening temperature, and thermal shock resistance. They can maintain stable physical and chemical properties in high-temperature environments.

[0003] Refractory bricks are mainly used as linings for high-temperature industrial kilns, such as blast furnaces and hot blast stoves in the metallurgical industry, cement rotary kilns in the building materials industry, and glass melting furnaces in the glass industry. They can withstand heat shock, chemical corrosion, and mechanical pressure in high-temperature environments, playing a role in heat insulation, protecting the kiln shell from high-temperature damage, reducing heat loss, and ensuring the normal operation of high-temperature reactions or processing processes inside the kiln.

[0004] In the prior art, the demolding mechanism of some molding dies is mostly an integral ejection structure. When multiple refractory bricks are molded in the mold at the same time, the ejection device cannot accurately match the position and stress requirements of each brick, which can easily lead to uneven stress on the bricks and edge damage. Therefore, a deformation-resistant refractory brick molding die is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a deformation-resistant refractory brick molding die, which aims to improve the problem that some existing refractory brick molding dies are difficult to demold multiple refractory bricks.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mold for forming deformation-resistant refractory bricks includes a base, a demolding mechanism is provided inside the base, and a forming mechanism is fixedly connected to the top of the base.

[0008] The demolding mechanism includes a baffle, the bottom of which is rotatably connected to the inside of the base. A convex block is fixedly connected to the front end of the baffle, and a sliding block is slidably connected to the outer wall of the convex block. A driving assembly is rotatably connected to the front end of the sliding block. A protective shell is fixedly connected to the rear end of the base. A second cylinder is fixedly connected inside the protective shell. A connecting plate is fixedly connected to the driving end of the second cylinder. Multiple push rods are fixedly connected to the front end of the connecting plate, and a push plate is fixedly connected to the front end of each push rod.

[0009] As a further description of the above technical solution:

[0010] Limiting plates are fixedly connected to both the upper and lower sides of the convex block. The upper and lower sides of the sliding block are in contact with the adjacent side of the two limiting plates. Supporting plates are fixedly connected to both the left and right sides of the front end of the base. The front side of the baffle is in contact with the top side of the two supporting plates.

[0011] As a further description of the above technical solution:

[0012] The drive assembly includes a fixed base, the rear end of which is fixedly connected to the front end of the base, a protruding plate is fixedly connected inside the fixed base, a rotating block is rotatably connected to the inner wall of the protruding plate, and a cylinder is fixedly connected to the top of the rotating block.

[0013] As a further description of the above technical solution:

[0014] The top of the convex plate is provided with a storage groove, and the driving end of the cylinder is fixedly connected to a rotating shaft, which is rotatably connected to the outside of the sliding block.

[0015] As a further description of the above technical solution:

[0016] The forming mechanism includes a support base, the bottom end of which is fixedly connected to the top end of the base, a hydraulic cylinder is fixedly connected to the top of the support base, a pressure plate is fixedly connected to the driving end of the hydraulic cylinder, a plurality of transmission columns are fixedly connected to the bottom end of the pressure plate, and a pressure plate is fixedly connected to the bottom end of two of the transmission columns.

[0017] As a further description of the above technical solution:

[0018] Guide rods are slidably connected to the top left and right sides of the support base, and the bottom ends of the two guide rods are fixedly connected to the top of the pressure plate.

[0019] As a further description of the above technical solution:

[0020] A fixing plate is fixedly connected to the top of the base, and multiple partitions are fixedly connected to the bottom of the fixing plate. The outer wall of the push plate is slidably connected to the adjacent side of two of the partitions. The interior of the partition contains a base layer, and support layers are fixedly connected to both the left and right sides of the base layer. A reinforcing coating is applied to the opposite side of the two support layers.

[0021] As a further description of the above technical solution:

[0022] The bottom ends of the multiple partitions are fixedly connected to the top inner wall of the base. The base layer is made of high-temperature resistant alloy steel, the support layer is made of ceramic composite material, and the reinforcing coating is made of silicon nitride.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the fixed seat in the drive assembly provides a fixed installation base for other components, the convex plate supports the rotating block, the cylinder provides power to drive the sliding block to move via the rotating shaft, and the limiting plates above and below the convex block precisely limit the sliding range of the sliding block to ensure the stability of the baffle rotation. When the molding is completed, the drive assembly reverses its operation to make the baffle rotate and open to form an opening. Then the cylinder works, and drives the push rod to push the push plate via the connecting plate. Under the guidance of the partition, the push plate pushes the molded refractory brick out of the opening, ensuring that multiple bricks are released from the cavity at the same time, realizing the demolding of multiple bricks without damage.

[0025] 2. In this utility model, the support base in the molding mechanism provides a foundation for the installation and support of the hydraulic cylinder and guide rod. The hydraulic cylinder, as a power source, drives the pressure plate to move, which in turn moves the pressure plate downwards via the transmission column. Throughout the process, the guide rod ensures vertical movement. This stable molding process contributes to the efficient production of refractory bricks.

[0026] 3. In this utility model, the partition is fixedly supported by a fixed plate, its internal base layer ensures structural strength, the support layer provides thermal insulation, and the reinforced coating is wear-resistant and corrosion-resistant. These partitions divide the interior of the mold into multiple spaces, allowing the refractory brick raw materials in multiple spaces to be formed simultaneously in one pressing process, realizing the simultaneous forming of multiple bricks and greatly improving production efficiency. Attached Figure Description

[0027] Figure 1 This is a perspective view of a deformation-resistant refractory brick molding die proposed in this utility model;

[0028] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 3 This is a schematic diagram of the base of a deformation-resistant refractory brick forming mold proposed in this utility model;

[0030] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0031] Figure 5 This is a schematic diagram of the support base for a deformation-resistant refractory brick forming mold proposed in this utility model.

[0032] Figure 6 This is a schematic diagram of the partition plate of a deformation-resistant refractory brick forming mold proposed in this utility model.

[0033] Legend:

[0034] 1. Base; 2. Baffle; 3. Convex block; 4. Sliding block; 5. Limiting plate; 6. Fixed seat; 7. Convex plate; 8. Storage slot; 9. Rotating block; 10. Cylinder 1; 11. Rotating shaft; 12. Protective shell; 13. Cylinder 2; 14. Connecting plate; 15. Push rod; 16. Push plate; 17. Fixed plate; 18. Partition plate; 19. Base layer; 20. Support layer; 21. Reinforcing coating; 22. Support seat; 23. Hydraulic cylinder; 24. Guide rod; 25. Pressure plate; 26. Transmission column; 27. Pressure plate. Detailed Implementation

[0035] 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. Example

[0036] Reference Figure 2 , Figure 3 and Figure 4 A deformation-resistant refractory brick molding die includes a base 1, with a demolding mechanism inside the base 1 and a molding mechanism fixedly connected to the top of the base 1. The base 1 is the basic structure of the entire molding die, providing support and installation space for the demolding and molding mechanisms. The demolding mechanism includes a baffle 2, the bottom of which is rotatably connected to the inside of the base 1. During the molding process, the baffle 2 is in a closed state, forming the molding die with other components. After molding, an opening is formed at the front end of the base 1 to facilitate demolding of the refractory brick. Support plates are fixedly connected to the left and right sides of the front end of the base 1. The front side of the baffle 2 is connected to the top of the two support plates. The front end of the baffle 2 is fixedly connected to a convex block 3, and the outer wall of the convex block 3 is slidably connected to a sliding block 4, so that the movement of the sliding block 4 can be converted into the rotation of the baffle 2. The sliding block 4 slides along the convex block 3, transmitting force to the baffle 2 and causing the baffle 2 to rotate. Limiting plates 5 are fixedly connected to both the upper and lower sides of the convex block 3. The upper and lower sides of the sliding block 4 are in contact with the adjacent side of the two limiting plates 5. When the demolding mechanism is working, the limiting plates 5 can accurately limit the sliding range of the sliding block 4, ensuring the stability of the rotation of the baffle 2 and avoiding the normal operation of the baffle 2 due to the sliding range of the sliding block 4 being too large or too small.

[0037] A drive assembly is rotatably connected to the front end of the sliding block 4. The drive assembly includes a fixed base 6, the rear end of which is fixedly connected to the front end of the base 1. The fixed base 6 provides a base for the fixed installation of other components of the drive assembly. A protruding plate 7 is fixedly connected inside the fixed base 6. A rotating block 9 is rotatably connected to the inner wall of the protruding plate 7. The protruding plate 7 provides rotational support for the rotating block 9, ensuring that the rotating block 9 can rotate smoothly on its inner wall. A cylinder 10 is fixedly connected to the top of the rotating block 9. The cylinder 10 is the power source in the drive assembly. It provides the power to move the sliding block 4 through telescopic movement, thereby controlling the rotation of the baffle 2. A storage groove 8 is provided on the top of the protruding plate 7. The storage groove 8 provides storage space for part of the cylinder 10 structure, which helps to optimize the overall structural layout of the drive assembly and avoids conflicts between components. To prevent interference, a rotating shaft 11 is fixedly connected to the drive end of cylinder 10. The external part of the rotating shaft 11 is rotatably connected to the outside of the sliding block 4. The rotating shaft 11 converts the linear motion of cylinder 10 into the moving force of the sliding block 4. A protective shell 12 is fixedly connected to the rear end of the base 1. Cylinder 2 13 is fixedly connected inside the protective shell 12. The protective shell 12 protects cylinder 2 13 and prevents external factors from interfering with and damaging cylinder 2 13. A connecting plate 14 is fixedly connected to the drive end of cylinder 2 13. Multiple push rods 15 are fixedly connected to the front end of the connecting plate 14. The connecting plate 14 evenly distributes the power of cylinder 2 13 to multiple push rods 15. A push plate 16 is fixedly connected to the front end of the push rod 15. Under the push of the push rod 15, the push plate 16 moves forward and pushes the formed refractory brick out from the front opening. Example

[0038] Reference Figure 1 , Figure 3 and Figure 5 The molding mechanism includes a support base 22, the bottom of which is fixedly connected to the top of the base 1. A hydraulic cylinder 23 is fixedly connected to the top of the support base 22, and a pressure plate 25 is fixedly connected to the drive end of the hydraulic cylinder 23. Guide rods 24 are slidably connected to the left and right sides of the top of the support base 22. The bottom ends of the two guide rods 24 are fixedly connected to the top of the pressure plate 25. The support base 22 provides a mounting and support foundation for the hydraulic cylinder 23 and the guide rods 24, ensuring the stability of the hydraulic cylinder 23 during operation. The hydraulic cylinder 23 is the power source of the molding mechanism. Through telescopic movement, it drives the pressure plate 25 to move downward. Multiple transmission columns 26 are fixedly connected to the bottom of the pressure plate 25, and pressure plates 27 are fixedly connected to the bottom of the two transmission columns 26. During the movement of the pressure plate 25 driven by the hydraulic cylinder 23, the pressure plates 27 play a guiding role, ensuring that the pressure plate 25 and the pressure plates 27 move vertically downward, improving the molding accuracy. The pressure plates 27 move downward under the drive of the transmission columns 26, pressing the refractory brick raw material in the mold. Example

[0039] Reference Figure 4 and Figure 6A fixing plate 17 is fixedly connected to the top of the base 1, and multiple partitions 18 are fixedly connected to the bottom of the fixing plate 17. The bottom ends of the multiple partitions 18 are fixedly connected to the inner wall of the top of the base 1. The fixing plate 17 provides fixed support for the partitions 18. The outer wall of the push plate 16 is slidably connected to the adjacent side of two partitions 18. The partitions 18 divide the internal space of the mold into multiple spaces, so that multiple bricks can be formed simultaneously in one pressing process, improving production efficiency. The interior of the partition 18 contains a base layer 19, which is made of high-temperature resistant alloy steel and can withstand the pressure of high temperatures. The high-temperature environment during the refractory brick forming process ensures the basic structural strength of the partition 18. Support layers 20 are fixedly connected to both sides of the base layer 19. The support layers 20 are made of ceramic composite material, which has good heat insulation performance and certain mechanical strength, and plays a supporting and heat insulation role for the base layer 19. A reinforcing coating 21 is applied to the far side of the two support layers 20. The reinforcing coating 21 is made of silicon nitride, which can further improve the wear resistance and corrosion resistance of the partition 18, extend the service life of the partition 18, and help improve the forming quality of the refractory brick.

[0040] Working principle: Cylinder 10 in the drive assembly applies force to the sliding block 4 through the rotating shaft 11. Since the sliding block 4 is slidably connected to the convex block 3 and the convex block 3 is fixed on the baffle 2, when the sliding block 4 moves under the action of the drive assembly, it will drive the baffle 2 to rotate inside the base 1. At this time, the baffle 2 is in the closed state and together with other components, it forms a molding mold. After molding is completed, the drive assembly reverses its operation, causing the baffle 2 to rotate and open. At this time, the front end of the base 1 forms an opening. At the same time, cylinder 13 works, and its drive end drives the push rod 15 to move forward through the connecting plate 14. The push rod 15 pushes the push plate 16. Since the outer wall of the push plate 16 is slidably connected to the adjacent side of the two partitions 18, the molded refractory brick is pushed out from the front opening under the push of the push plate 16, realizing demolding. In this process, the limiting plates 5 on the upper and lower sides of the convex block 3 play a role in limiting the sliding range of the sliding block 4 and ensuring the stability of the rotation of the baffle 2. The support plate at the front end of the base 1 plays a supporting role on the front side of the baffle 2.

[0041] The hydraulic cylinder 23 in the forming mechanism works, and its driving end drives the pressure plate 25 to move downward. The pressure plate 25 drives the pressure plate 27 to move downward through the transmission column 26. During this process, the guide rods 24 on the left and right sides of the top of the support seat 22 play a guiding role to ensure that the pressure plate 25 and the pressure plate 27 move vertically downward. Due to the reasonable internal structure of the mold, such as the multiple partitions 18 on the base 1, the refractory brick raw material can be formed in multiple spaces at the same time during one pressing process, thereby realizing the simultaneous forming of multiple bricks and improving production efficiency.

[0042] The base layer 19 is made of high-temperature resistant alloy steel, which can withstand the high-temperature environment during the refractory brick molding process and ensure the basic structural strength of the partition 18. The support layer 20 is made of ceramic composite material, which has good heat insulation performance and certain mechanical strength, and can provide support and heat insulation for the base layer 19, preventing high temperature from causing excessive impact on other parts of the mold. The reinforcing coating 21 is made of silicon nitride, which can further improve the wear resistance and corrosion resistance of the partition 18 and extend its service life. The multi-layer structure design allows the partition 18 to ensure the stability of the internal structure of the mold during the refractory brick molding process, and to adapt to various requirements such as high temperature, wear resistance, and corrosion resistance, thereby helping to improve the molding quality of the refractory brick and reduce deformation and other problems during the molding process.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A molding die for deformation-resistant refractory bricks, comprising a base (1), characterized in that: The base (1) is provided with a demolding mechanism inside, and a molding mechanism is fixedly connected to the top of the base (1). The demolding mechanism includes a baffle (2), the bottom of which is rotatably connected to the inside of the base (1). A convex block (3) is fixedly connected to the front end of the baffle (2). A sliding block (4) is slidably connected to the outer wall of the convex block (3). A driving component is rotatably connected to the front end of the sliding block (4). A protective shell (12) is fixedly connected to the rear end of the base (1). A cylinder (13) is fixedly connected inside the protective shell (12). A connecting plate (14) is fixedly connected to the driving end of the cylinder (13). A plurality of push rods (15) are fixedly connected to the front end of the connecting plate (14). A push plate (16) is fixedly connected to the front end of the push rods (15).

2. The molding die for deformation-resistant refractory bricks according to claim 1, characterized in that: The upper and lower sides of the convex block (3) are fixedly connected to the limiting plates (5), the upper and lower sides of the sliding block (4) are in contact with the adjacent side of the two limiting plates (5), the front left and right sides of the base (1) are fixedly connected to the support plates, and the front side of the baffle (2) is in contact with the top side of the two support plates.

3. The molding die for deformation-resistant refractory bricks according to claim 1, characterized in that: The drive assembly includes a fixed base (6), the rear end of which is fixedly connected to the front end of the base (1). A protruding plate (7) is fixedly connected inside the fixed base (6). A rotating block (9) is rotatably connected to the inner wall of the protruding plate (7). A cylinder (10) is fixedly connected to the top of the rotating block (9).

4. The deformation-resistant refractory brick forming mold according to claim 3, characterized in that: The top of the convex plate (7) is provided with a storage groove (8), and the driving end of the cylinder (10) is fixedly connected to a rotating shaft (11). The outside of the rotating shaft (11) is rotatably connected to the outside of the sliding block (4).

5. The molding die for deformation-resistant refractory bricks according to claim 1, characterized in that: The forming mechanism includes a support base (22), the bottom end of which is fixedly connected to the top end of the base (1), a hydraulic cylinder (23) is fixedly connected to the top of the support base (22), a pressure plate (25) is fixedly connected to the driving end of the hydraulic cylinder (23), a plurality of transmission columns (26) are fixedly connected to the bottom end of the pressure plate (25), and a pressure plate (27) is fixedly connected to the bottom end of two transmission columns (26).

6. The molding die for deformation-resistant refractory bricks according to claim 5, characterized in that: The top left and right sides of the support base (22) are slidably connected with guide rods (24), and the bottom ends of the two guide rods (24) are fixedly connected to the top of the pressure plate (25).

7. The molding die for deformation-resistant refractory bricks according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a fixing plate (17), and the bottom of the fixing plate (17) is fixedly connected to multiple partitions (18). The outer wall of the push plate (16) is slidably connected to the adjacent side of the two partitions (18). The interior of the partition (18) contains a base layer (19). The left and right sides of the base layer (19) are fixedly connected to support layers (20), and the distant sides of the two support layers (20) are coated with a reinforcing coating (21).

8. The molding die for deformation-resistant refractory bricks according to claim 7, characterized in that: The bottom ends of the multiple partitions (18) are fixedly connected to the top inner wall of the base (1). The base layer (19) is made of high temperature resistant alloy steel, the support layer (20) is made of ceramic composite material, and the reinforcing coating (21) is made of silicon nitride.