CN216031592U - High-concentricity isostatic pressing forming die - Google Patents
High-concentricity isostatic pressing forming die Download PDFInfo
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- CN216031592U CN216031592U CN202122353730.8U CN202122353730U CN216031592U CN 216031592 U CN216031592 U CN 216031592U CN 202122353730 U CN202122353730 U CN 202122353730U CN 216031592 U CN216031592 U CN 216031592U
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Abstract
The utility model discloses a high-concentricity isostatic compaction die, which comprises a die core column, an outer elastic rubber sleeve, a die upper cover, a waterproof cover plate and a beef tendon belt for fixing the die core column and the outer elastic rubber sleeve, and the die upper cover and the outer elastic rubber sleeve; the upper end of the die core column is provided with a limber hole and a first threaded hole; the upper cover of the die consists of 2 metal rings with second threaded holes and a rubber pad in the middle of the metal rings, and the metal rings and the rubber pad are fixed through bolts; the lower end of the waterproof cover plate is provided with threads; the die has the advantages of simple structure, convenient assembly and disassembly, reliable work and high product efficiency.
Description
Technical Field
The utility model relates to the field of cold isostatic pressing, in particular to a mold for pressing ceramic powder into a ceramic tube blank by using a cold isostatic pressing process.
Background
The production history of the ceramic tube in China is only 20 years, hot-press casting molding is used as a main production process for many years, and with the development of the technology, the cold isostatic pressing technology is widely applied to the production of ceramic tube blanks. When a ceramic tube blank is formed by a cold isostatic pressing process, in order to ensure that the central symmetry of the ceramic blank after being pressed and formed is improved, a metal core column and a rubber sleeve are usually fixed by using a rubber sleeve support piece; however, the processing of the supporting piece is complicated, and the rubber sleeves with different sizes are required to be customized as the supporting piece, thereby invisibly increasing the cost of ceramic green body forming and seriously influencing the production efficiency.
Disclosure of Invention
In view of the above-mentioned existing problems, the present invention provides a high-concentricity isostatic pressing mold. The utility model is suitable for pressing the blank of the ceramic through pipe formed by isostatic pressing, the blank pressed by the die can avoid the defects of central asymmetry and elephant foot, and the processing amount of the ceramic pipe is reduced after one-step forming; the die is simple and easy to operate, and can meet the requirements of large-scale production.
In order to achieve the purpose, the utility model adopts the following scheme:
a high-concentricity isostatic compaction die comprises a die core column, an outer elastic rubber sleeve, a die upper cover, a waterproof cover plate, and a beef tendon belt for fixing the die core column and the outer elastic rubber sleeve, and fixing the die upper cover and the outer elastic rubber sleeve; the upper end of the die core column is provided with a limber hole and a first threaded hole; the upper cover of the die consists of 2 metal rings with second threaded holes and a rubber pad in the middle of the metal rings, and the metal rings and the rubber pad are fixed through bolts; the lower end of the waterproof cover plate is provided with threads.
The outer elastic rubber sleeve and the plug are made of polyurethane, and the hardness of the outer elastic rubber sleeve is 80-90 degrees, so that the rubber sleeve is prevented from deforming due to the fastening effect of the beef tendon belt in the installation process.
And the outer diameters of the mold core column, the mold upper cover and the outer elastic rubber sleeve are consistent.
The number of the second threaded holes in the metal ring of the upper cover of the die is more than 6, and the second threaded holes are determined according to the diameter of the outer elastic rubber sleeve, so that the rubber pad is guaranteed to be compressed by the metal ring to a large extent.
Compared with the prior art, the utility model has the beneficial effects that: the blank pressed by the die can avoid the defects of central asymmetry and foot-like of the blank, the processing amount of the ceramic tube after one-step forming is reduced, the operation is simple and easy, and the requirement of large-scale production can be met.
Description of the drawings:
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic view of a metal ring of the mold top cover of the present invention;
in the figure: (1) the die comprises a die core column, (2) an outer elastic rubber sleeve, (3) a die upper cover, (4) a waterproof cover plate, (5) a beef tendon belt, (11) a water through hole, (12) a first threaded hole, (31) a metal ring, (32) a rubber pad, (33) a bolt, (34) a second threaded hole and (41) a thread.
The specific implementation mode is as follows:
as shown in the figure, the isostatic compaction mould with high concentricity comprises a mould core column (1), an outer elastic rubber sleeve (2), a mould upper cover (3), a waterproof cover plate (4), and a beef tendon belt (5) for fixing the mould core column (1) and the outer elastic rubber sleeve (2) and fixing the mould upper cover (3) and the outer elastic rubber sleeve (2); the upper end of the die core column (1) is provided with a water through hole (11) and a first threaded hole (12); the upper cover of the die consists of 2 metal rings (31) with second threaded holes (34) and a rubber pad (32) in the middle of the metal rings, and the metal rings (31) and the rubber pad (32) are fixed through bolts (33); the lower end of the waterproof cover plate (4) is provided with threads (41).
As shown in fig. 1, an outer elastic rubber sleeve (2) is placed on a mold core column (1) and fixed by a beef tendon belt (5); after the powder is filled between the die core column and the rubber sleeve, the mounted die upper cover (3) is covered on the die core column (1), and the lower end of the die upper cover is in close contact with the upper end face of the elastic rubber sleeve; fixing the upper cover (3) of the mould and the outer elastic rubber sleeve (2) by using a beef tendon belt (5); and (3) fastening the waterproof cover plate (4) into a first threaded hole (12) at the upper end of the mold core column through a thread (41), and pressing the rubber gasket (32).
When the die is pressed, the liquid medium acts on the outer elastic rubber sleeve, so that the outer elastic rubber sleeve is simultaneously compressed inwards, the green body is pressed, and the phenomenon of feet is avoided.
The high-concentricity isostatic pressing die provided by the utility model is described in detail above. The principles and embodiments of the present invention are described herein using specific examples, which are presented only to assist in understanding the method and core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (5)
1. A high-concentricity isostatic compaction die is characterized by comprising a die core column (1), an outer elastic rubber sleeve (2), a die upper cover (3), a waterproof cover plate (4), and a beef tendon belt (5) for fixing the die core column (1) and the outer elastic rubber sleeve (2), and fixing the die upper cover (3) and the outer elastic rubber sleeve (2); the upper end of the die core column (1) is provided with a water through hole (11) and a first threaded hole (12); the upper cover of the die consists of 2 metal rings (31) with second threaded holes (34) and a rubber pad (32) in the middle of the metal rings, and the metal rings (31) and the rubber pad (32) are fixed through bolts (33); the lower end of the waterproof cover plate (4) is provided with threads (41).
2. A high concentricity isostatic pressing mould as claimed in claim 1, wherein said outer elastic rubber sleeve (2) is made of polyurethane or rubber material with hardness of 80-90 °.
3. A high concentricity isostatic compaction die as claimed in claim 1, wherein said die core column (1), said die top cover (3) and said external elastic rubber sleeve (2) have the same external diameter.
4. A high concentricity isostatic pressing mould as claimed in claim 1, wherein the number of second threaded holes (34) provided in the metal ring (31) of the upper cover of the mould is more than 6, determined in particular by the diameter of the outer elastic rubber sleeve (2).
5. A high concentricity isostatic pressing mould as claimed in claim 1, wherein said inner diameter of the sinew band is 40-70% of the outer diameter of the outer elastic rubber sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122353730.8U CN216031592U (en) | 2021-09-28 | 2021-09-28 | High-concentricity isostatic pressing forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122353730.8U CN216031592U (en) | 2021-09-28 | 2021-09-28 | High-concentricity isostatic pressing forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216031592U true CN216031592U (en) | 2022-03-15 |
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ID=80607245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122353730.8U Active CN216031592U (en) | 2021-09-28 | 2021-09-28 | High-concentricity isostatic pressing forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216031592U (en) |
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2021
- 2021-09-28 CN CN202122353730.8U patent/CN216031592U/en active Active
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