A large square crucible ispessing forming die

Abstract

The utility model belongs to the crucible forming die technical field, and disclose a big square crucible isostatic pressing forming die, including the die one, the inside fixed position of die one is equipped with the locating disc, the inside of locating disc is equipped with the magnetic attraction groove, the upper end surface fixed position of locating disc is equipped with the center column, the inside of center column is equipped with the screw hole, through locating disc, provide accurate positioning reference for the installation of other components in the die, help to improve the precision of die assembly, guarantee the relative position accuracy between each component, thereby promote the stability of forming die whole and the quality of forming product, through center column, screw hole, provide the convenience for the connection of subsequent other components.

Description

Technical Field

[0001] This utility model belongs to the field of crucible forming mold technology, specifically a large square crucible isostatic pressing forming mold. Background Technology

[0002] In the production of large square crucibles, isostatic pressing is a key process to ensure uniform density and excellent performance. However, traditional isostatic pressing molds commonly suffer from problems such as crucible deformation, uneven density, short mold life, and poor sealing performance leading to pressure leakage when used for special-shaped products like large square crucibles. These issues severely affect the production quality and efficiency of large square crucibles. This innovative design aims to solve the pain points of traditional molds by designing a new type of mold suitable for isostatic pressing of large square crucibles. This mold must meet the following objectives: First, ensure that the large square crucible has uniform density and accurate dimensions after molding, reducing deformation; second, increase the mold's service life and reduce production costs; third, enhance the mold's sealing performance to prevent pressure leakage and ensure the stable operation of the isostatic pressing process; and fourth, optimize the mold structure for easy operation and maintenance, improving production efficiency.

[0003] Meanwhile, a crucible isostatic pressing molding die with announcement number CN206748693U is disclosed, including an elastic die and a rigid die. The elastic die includes a rubber cylinder, a rubber cover plate, and a rubber plate. The rigid die includes an end cap, a core die, and a fixed cylinder. A powder forming cavity is formed between the core die, the rubber cylinder, and the rubber plate. A first injection hole is provided on the fixed cylinder, and a second injection hole is provided on the end cap. The core die has an inner core hole.

[0004] The sealing of the above-mentioned crucible isostatic pressing mold is crucial during use. Some molds use an interference fit between the upper end cap and the rubber sleeve for sealing. After a certain number of uses, the size of the upper end cap decreases under pressure, and the interference fit between the upper end cap and the rubber sleeve weakens, leading to leakage.

[0005] Therefore, an isostatic pressing mold for a large square crucible is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides an isostatic pressing mold for a large square crucible, which has the advantage of high density uniformity.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a large square crucible isostatic pressing mold, including a mold one, a positioning plate fixedly provided inside the mold one, a magnetic suction groove provided inside the positioning plate, a central column fixedly provided on the upper end face of the positioning plate, and a threaded hole provided inside the central column. The magnetic suction groove creates conditions for fixing other components using the magnetic suction principle. Magnetic suction connection has the advantages of convenient installation and rapid positioning, which can improve the efficiency of mold assembly.

[0008] Preferably, a magnetic block is fitted inside the magnetic groove, and an inner core is fixedly provided on the upper end face of the magnetic block, with a positioning hole opened inside the inner core.

[0009] By adopting the above technical solution, the magnetic attraction characteristics of the magnetic blocks and magnetic grooves are utilized to enable the inner core to be quickly and accurately installed into the mold, reducing installation time and difficulty and improving production efficiency.

[0010] Preferably, the inner core has a fixing hole inside, and the fixing hole is fitted with the central column; the threaded hole has a threaded rod inside, and the threaded rod is fitted with the inner core.

[0011] By adopting the above technical solution, the inner core can be easily disassembled when maintenance or replacement is needed through the threaded rod, which reduces the maintenance cost and difficulty of the mold.

[0012] Preferably, the mold has air holes inside, mounting plates are fixedly provided on the lower part of the front and rear end faces of the mold, and positioning blocks are fixedly provided on the left and right end faces of the mold.

[0013] By adopting the above technical solution, the mounting plate provides a fixed point for the installation of mold one, facilitating its installation on other equipment. The positioning block plays a positioning role during installation, ensuring the accuracy and stability of mold one's installation.

[0014] Preferably, a base plate is attached to the lower end face of the mounting plate, and rectangular blocks are fixed on both the left and right sides of the upper end face of the base plate, with positioning grooves opened inside the rectangular blocks.

[0015] By adopting the above technical solution, the base plate provides stable support for the mold, ensuring that the mold will not shake or shift during the isostatic pressing process.

[0016] Preferably, a fixing plate is fixedly provided on both the front and rear ends of the rectangular block, a support column is fixedly provided on the lower end of the fixing plate, a spring is fixedly provided on the outer side of the support column, and the spring is fixedly set with the fixing plate.

[0017] By adopting the above technical solution, the spring plays a role in buffering and shock absorption. During the isostatic pressing process, it can absorb and disperse the impact force on the mold, reduce mold vibration and wear, and extend the service life of the mold.

[0018] Preferably, a fixed platform is fixedly provided on the lower end face of the base plate, and a support frame is fixedly provided on the upper end face of the fixed platform.

[0019] By adopting the above technical solution, the fixed platform and support frame provide more stable support for the entire mold system, which can withstand the high pressure in the isostatic pressing process, ensuring that the mold will not tilt or shake during operation, thereby improving the quality of the molded products and the safety of production.

[0020] Preferably, a second mold is fitted to the outer side of the inner core, a sealing strip is fixedly provided on the lower end face of the second mold, a threaded column is fixedly provided on the upper end face of the second mold, and a hydraulic telescopic column is spirally provided on the outer side of the threaded column.

[0021] By adopting the above technical solution, the sealing strip can prevent liquid or gas leakage during isostatic pressing, ensure stable pressure during the molding process, and improve the quality of the molded products.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. This utility model provides an accurate positioning benchmark for the installation of other components inside the mold through the positioning plate, which helps to improve the accuracy of mold assembly, ensure the accuracy of the relative positions between the components, thereby improving the overall stability of the molding mold and the quality of the molded product. The central column and threaded hole facilitate the subsequent connection with other components.

[0024] 2. This utility model allows the height of the second mold to be adjusted as needed through hydraulic telescopic columns and threaded columns, which can adapt to the molding requirements of large square crucibles of different sizes, increasing the versatility and flexibility of the mold. The stability of the rectangular block and the base plate is further enhanced through the fixing plate and support columns, ensuring that the mold can maintain a good working condition under high pressure. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the installation structure of mold one of this utility model;

[0027] Figure 3 This is a schematic diagram of the installation structure of the threaded column of this utility model;

[0028] Figure 4This is a schematic diagram of the mounting structure of the mounting plate of this utility model;

[0029] Figure 5 This is a schematic diagram of the installation structure of the inner core of this utility model;

[0030] Figure 6 This is a schematic diagram of the installation structure of the positioning disc of this utility model.

[0031] In the diagram: 1. Fixed platform; 2. Support frame; 3. Base plate; 4. Mounting plate; 5. Mold one; 6. Air hole; 7. Positioning block; 8. Threaded rod; 9. Rectangular block; 10. Positioning groove; 11. Fixed plate; 12. Support column; 13. Spring; 14. Inner core; 15. Positioning hole; 16. Fixed hole; 17. Magnetic block; 18. Positioning plate; 19. Magnetic groove; 20. Center column; 21. Threaded hole; 22. Hydraulic telescopic column; 23. Threaded column; 24. Mold two; 25. Sealing strip. Detailed Implementation

[0032] 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.

[0033] The following describes an embodiment of this utility model based on its overall structure.

[0034] like Figures 1 to 6 As shown, this utility model provides an isostatic pressing mold for a large square crucible, including a mold 5. A positioning plate 18 is fixedly installed inside the mold 5. A magnetic groove 19 is opened inside the positioning plate 18. A central column 20 is fixedly installed on the upper end face of the positioning plate 18. A threaded hole 21 is opened inside the central column 20. The positioning plate 18 provides an accurate positioning reference for the installation of other components inside the mold, which helps to improve the accuracy of mold assembly, ensure the accuracy of the relative positions between the components, and thus improve the overall stability of the molding mold and the quality of the molded product. The central column 20 and the threaded hole 21 provide convenience for subsequent connection with other components.

[0035] In this embodiment, a magnetic block 17 is fitted inside the magnetic groove 19, and an inner core 14 is fixedly provided on the upper end surface of the magnetic block 17. A positioning hole 15 is opened inside the inner core 14. By using the magnetic block 17 and the magnetic groove 19, the magnetic properties are utilized to enable the inner core 14 to be quickly and accurately installed into the mold 5, reducing installation time and installation difficulty and improving production efficiency.

[0036] The inner core 14 has a fixing hole 16 inside, and the fixing hole 16 is fitted with the center post 20. The threaded hole 21 has a threaded rod 8 inside, and the threaded rod 8 is fitted with the inner core 14. The threaded rod 8 allows the inner core 14 to be easily disassembled when it needs to be repaired or replaced, reducing the maintenance cost and difficulty of the mold.

[0037] The mold 5 has air holes 6 inside. Mounting plates 4 are fixedly installed on the lower part of the front and rear end faces of the mold 5. Positioning blocks 7 are fixedly installed on the left and right end faces of the mold 5. The mounting plates 4 provide fixed points for the installation of the mold 5, making it convenient to install the mold 5 onto other equipment. The positioning blocks 7 can play a positioning role during the installation process, ensuring the accuracy and stability of the installation of the mold 5.

[0038] The lower end face of the mounting plate 4 is fitted with a base plate 3. The upper end face of the base plate 3 is fixed with rectangular blocks 9 on both the left and right sides. The rectangular blocks 9 have positioning grooves 10 inside. The base plate 3 provides stable support for the mold 5, ensuring that the mold will not shake or shift during the isostatic pressing process.

[0039] The front and rear ends of the rectangular block 9 are both fixed with a fixing plate 11. The lower end of the fixing plate 11 is fixed with a support column 12. The outside of the support column 12 is fixed with a spring 13, and the spring 13 is fixed to the fixing plate 11. The spring 13 plays a role in buffering and shock absorption. During the isostatic pressing process, it can absorb and disperse the impact force on the mold, reduce the vibration and wear of the mold, and extend the service life of the mold.

[0040] A fixed platform 1 is fixedly provided on the lower end face of the base plate 3, and a support frame 2 is fixedly provided on the upper end face of the fixed platform 1. The fixed platform 1 and the support frame 2 provide more stable support for the entire mold system, which can withstand the high pressure in the isostatic pressing process, ensuring that the mold will not tilt or shake during operation, thereby improving the quality of the molded products and the safety of production.

[0041] The outer side of the inner core 14 is fitted with a mold 24. A sealing strip 25 is fixedly provided on the lower end face of the mold 24, and a threaded post 23 is fixedly provided on the upper end face of the mold 24. A hydraulic telescopic post 22 is spirally provided on the outer side of the threaded post 23. The sealing strip 25 can prevent liquid or gas leakage during the isostatic pressing process, ensure the pressure stability of the molding process, and improve the quality of the molded product.

[0042] The working principle and process of an isostatic pressing mold for a large square crucible:

[0043] First, the magnetic block 17 is placed in the magnetic groove 19 inside the positioning plate 18 to initially fix the position of the inner core 14 using magnetic attraction. The positioning plate 18 is fixed inside the mold 5 and plays a key role in positioning the inner core 14. The fixing hole 16 on the inner core 14 is aligned and fitted with the center post 20, which is fixed to the upper end face of the positioning plate 18. Next, the threaded rod 8 is screwed into the threaded hole 21 inside the center post 20 to make the threaded rod 8 fit tightly with the inner core 14, further stabilizing the position of the inner core 14 inside the mold 5. The mold 5 is then placed on the base plate 3, so that the lower ends of the front and rear faces of the mold 5 are aligned. Mounting plate 4 is attached to the upper surface of base plate 3. At this time, the positioning grooves 10 on the rectangular blocks 9 on the left and right sides of the upper surface of base plate 3 can be used for possible subsequent positioning and mating. Mold 24 is fitted onto the outside of inner core 14, so that mold 24 and inner core 14 fit tightly. The sealing strip 25 on the lower end of mold 24 can prevent material leakage during the molding process and play a sealing role. On the upper end of mold 24, hydraulic telescopic column 22 is screwed to threaded column 23 to complete the assembly of mold 24 and hydraulic telescopic column 22, providing power support for subsequent isostatic pressing operation. The material used to make the large square crucible is filled into the mold 1. 5. Within the molding space enclosed by the inner core 14 and the second mold 24, the hydraulic telescopic column 22 is activated. The hydraulic telescopic column 22 applies pressure to the second mold 24 through the threaded column 23. During the isostatic pressing process, the pressure is evenly transmitted to the material, so that the material is subjected to the same pressure in all directions, thereby gradually forming the shape of a large square crucible. The air holes 6 opened inside the first mold 5 play the role of balancing the air pressure inside and outside the mold, avoiding the molding effect caused by air pressure problems during the pressing process. After the isostatic pressing molding is completed, first rotate the hydraulic telescopic column 22 in the opposite direction to separate it from the threaded column 23, and then remove the second mold 24 from the inner core 14 and unscrew the threaded rod 8. After releasing the fixed connection between the inner core 14 and the central column 20, the inner core 14 is removed from mold 5. At this time, the formed large square crucible remains in mold 5. After removing the formed large square crucible from mold 5, the mold 5, inner core 14, mold 24 and other components are cleaned to remove residual materials and impurities. The wear of each component of the mold is checked, such as the magnetic block 17, threaded rod 8, sealing strip 25, etc. If there is any damage, it is replaced in time. At the same time, the elastic components such as spring 13 are checked to ensure that their elastic performance is good, so as to prepare for the next molding operation. This plays the role of isostatic pressing mold for large square crucible.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

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