CN110774414A - External isobaric forming die structure - Google Patents
External isobaric forming die structure Download PDFInfo
- Publication number
- CN110774414A CN110774414A CN201911263383.0A CN201911263383A CN110774414A CN 110774414 A CN110774414 A CN 110774414A CN 201911263383 A CN201911263383 A CN 201911263383A CN 110774414 A CN110774414 A CN 110774414A
- Authority
- CN
- China
- Prior art keywords
- cover
- air cavity
- rubber cover
- die
- forming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000465 moulding Methods 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 210000004907 gland Anatomy 0.000 claims description 10
- 239000007769 metal material Substances 0.000 claims description 3
- 238000000462 isostatic pressing Methods 0.000 claims 4
- 239000000463 material Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/54—Producing shaped prefabricated articles from the material specially adapted for producing articles from molten material, e.g. slag refractory ceramic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0097—Press moulds; Press-mould and press-ram assemblies
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention discloses an external equal-pressure forming die structure, which is characterized in that: the die comprises a die frame arranged in a forming cavity, wherein a plurality of dies are arranged on the die frame, each die comprises a forming rubber sleeve, an upper rubber cover is arranged above the forming rubber sleeve, a lower rubber cover is arranged below the forming rubber sleeve, an upper pressing block is arranged below the upper rubber cover, and a lower pressing block is arranged above the lower rubber cover; an air cavity cover is arranged above the upper rubber cover, an air cavity is arranged in the air cavity cover, and the air cavity is communicated with the inner cavity of the upper rubber cover; the upper pressing block is provided with a through hole in the vertical direction, and the through hole is communicated with the air cavity; the wall thickness of the air cavity is smaller than that of the molding rubber sleeve; the bottom of the air cavity is provided with a one-way valve. The invention has the advantages that: because the air cavity structure is adopted, the air in the die is extruded by the molding rubber sleeve and can be collected into the air cavity, so that the influence on the final molded product is small, and the quality of the product is ensured.
Description
Technical Field
The invention relates to the technical field of refractory material preparation, in particular to a forming die.
Background
The refractory material may be formed in various ways, and may be formed through hydraulic pressure, sintering, etc. according to different specific requirements. In hydraulic molding, there is an external isostatic molding technique, which is based on the principle that a molding die is disposed in a pressure chamber, a hydraulic machine applies pressure to liquid in the pressure chamber, and the pressure is transmitted to the inside of the die through the outside of the die, thereby molding a material disposed in the die.
The existing forming die rarely considers the influence of gas inside the die on forming during hydraulic forming, the material is formed when being compressed by the die due to the existence of the gas, and when external pressure is removed, the gas inside the die expands along with the reduction of the pressure, so that the formed material becomes loose, the density is greatly reduced, and the quality of a final product, such as the reduction of strength, is influenced.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an external equal-pressure forming die structure which comprises a die carrier arranged in a forming cavity, wherein a plurality of dies are arranged on the die carrier, each die comprises a forming rubber sleeve, an upper rubber cover is arranged above the forming rubber sleeve, a lower rubber cover is arranged below the forming rubber sleeve, an upper pressing block is arranged below the upper rubber cover, and a lower pressing block is arranged above the lower rubber cover; an air cavity cover is arranged above the upper rubber cover, an air cavity is arranged in the air cavity cover, and the air cavity is communicated with the inner cavity of the upper rubber cover; the upper pressing block is provided with a through hole in the vertical direction, and the through hole is communicated with the air cavity; the wall thickness of the air cavity is smaller than that of the molding rubber sleeve, and the bottom of the air cavity is provided with a one-way valve.
The air cavity cover is made of metal materials, and convex feet are arranged below the air cavity cover and embedded into grooves preset in the upper rubber cover.
The die carrier is provided with a longitudinal shaft, an upper gland is arranged above the longitudinal shaft, a lower top cover is arranged below the longitudinal shaft, the upper gland is arranged in a positioning hole of the upper gland, and the lower gland is arranged in a positioning hole of the lower top cover.
The outer sides of the upper rubber cover and the lower rubber cover are respectively provided with a concave ring, and the locking ring is arranged in the concave rings to combine the upper rubber cover and the lower rubber cover with the molding rubber sleeve into a whole.
The invention has the advantages that: because the air cavity structure is adopted, and the air cavity cover with strong hardness is arranged on the outer side of the air cavity, pressure can not be transmitted to the air cavity, and air in the die is extruded by the molding rubber sleeve and can be collected into the air cavity, so that the influence on a final molded product is small, and the quality of the product is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of an air cavity;
fig. 3 is a top view of fig. 1.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings, as shown in the figures, the invention includes a die carrier arranged in a molding cavity 1, a pressure head 3 is arranged above the molding cavity 1, the molding cavity is filled with liquid 2, a plurality of dies are arranged on the die carrier, the dies include a molding rubber sleeve 7, an upper rubber cover 8 is arranged above the molding rubber sleeve 7, a lower rubber cover 9 is arranged below the molding rubber sleeve, an upper pressing block 10 is arranged below the upper rubber cover, and a lower pressing block 14 is arranged above the lower rubber cover; an air cavity cover 12 is arranged above the upper rubber cover 8, an air cavity 13 is arranged in the air cavity cover 12, and the air cavity 13 is communicated with the inner cavity of the upper rubber cover 8; the upper pressing block 10 is provided with a through hole 11 in the vertical direction, and the through hole 11 is communicated with the air cavity 13; the wall thickness of the air cavity 13 is smaller than that of the molding rubber sleeve 7, and the bottom of the air cavity is provided with a one-way valve 17.
When the pressure head is pressed down, as shown in the arrow direction, liquid in the forming cavity generates pressure in the same direction, the forming rubber sleeve can contract after bearing the pressure, and the material between the upper pressing block and the lower pressing block in the forming rubber sleeve is extruded.
The air cavity cover is made of metal materials, such as harder materials, steel, iron, titanium and the like can be adopted, convex feet are arranged below the air cavity cover and are embedded into grooves preset by the upper rubber cover, and in order to ensure firmness, a binder can be coated in the convex feet and the grooves.
The die carrier is provided with a longitudinal shaft 4, an upper gland 5 is arranged above the longitudinal shaft 4, a lower top cover 6 is arranged below the longitudinal shaft, an upper rubber cover 8 is arranged in a positioning hole of the upper gland 5, and a lower rubber cover 9 is arranged in a positioning hole of the lower top cover 6; the side surface appearance of the upper rubber cover 8 and the lower rubber cover 9 is frustum-shaped, and the shape has the advantages that: the upper rubber cover and the lower rubber cover can be limited to move along the axial direction.
Concave rings are arranged on the outer sides of the upper rubber cover 8 and the lower rubber cover 9, and a locking ring 16 is arranged in the concave rings to combine the upper rubber cover 8 and the lower rubber cover 9 with the molding rubber sleeve 7 into a whole.
Claims (4)
1. The utility model provides an external isostatic pressing forming die structure which characterized in that: the die comprises a die frame arranged in a forming cavity, wherein a plurality of dies are arranged on the die frame, each die comprises a forming rubber sleeve, an upper rubber cover is arranged above the forming rubber sleeve, a lower rubber cover is arranged below the forming rubber sleeve, an upper pressing block is arranged below the upper rubber cover, and a lower pressing block is arranged above the lower rubber cover; an air cavity cover is arranged above the upper rubber cover, an air cavity is arranged in the air cavity cover, and the air cavity is communicated with the inner cavity of the upper rubber cover; the upper pressing block is provided with a through hole in the vertical direction, and the through hole is communicated with the air cavity; the wall thickness of the air cavity is smaller than that of the molding rubber sleeve; the bottom of the air cavity is provided with a one-way valve.
2. The external isostatic pressing mold structure according to claim 1, wherein: the air cavity cover is made of metal materials, and convex feet are arranged below the air cavity cover and embedded into grooves preset in the upper rubber cover.
3. The external isostatic pressing mold structure according to claim 1, wherein: the die carrier is provided with a longitudinal shaft, an upper gland is arranged above the longitudinal shaft, a lower top cover is arranged below the longitudinal shaft, the upper gland is arranged in a positioning hole of the upper gland, and the lower gland is arranged in a positioning hole of the lower top cover.
4. The external isostatic pressing mold structure according to claim 1, wherein: the outer sides of the upper rubber cover and the lower rubber cover are respectively provided with a concave ring, and the locking ring is arranged in the concave rings to combine the upper rubber cover and the lower rubber cover with the molding rubber sleeve into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911263383.0A CN110774414A (en) | 2019-12-11 | 2019-12-11 | External isobaric forming die structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911263383.0A CN110774414A (en) | 2019-12-11 | 2019-12-11 | External isobaric forming die structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110774414A true CN110774414A (en) | 2020-02-11 |
Family
ID=69394342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911263383.0A Withdrawn CN110774414A (en) | 2019-12-11 | 2019-12-11 | External isobaric forming die structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110774414A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2810954Y (en) * | 2005-07-15 | 2006-08-30 | 毛广华 | External pressing type quasi-isostatic pressing device for product formed by cylindrical mold |
| CN201361937Y (en) * | 2009-03-19 | 2009-12-16 | 宜兴新威利成耐火材料有限公司 | Isostatic-pressing refractory mold |
| KR100968275B1 (en) * | 2009-10-09 | 2010-07-06 | 범진아이엔디(주) | The mold having structure for auto exhausting gas |
| CN105881717A (en) * | 2016-05-26 | 2016-08-24 | 宁夏机械研究院股份有限公司 | Isostatic compaction mold for ceramic nozzle |
| CN107081844A (en) * | 2017-05-05 | 2017-08-22 | 佛山市东方智柏纳米材料科技有限公司 | A kind of Production of Ceramics pressue device |
| CN206937551U (en) * | 2017-05-01 | 2018-01-30 | 佛山市顺德区乐从镇迅发陶瓷机械制造有限公司 | A kind of isostatic mould-core of superior performance |
| CN211250544U (en) * | 2019-12-11 | 2020-08-14 | 鞍山市神佳耐火材料有限公司 | External isobaric forming die structure |
-
2019
- 2019-12-11 CN CN201911263383.0A patent/CN110774414A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2810954Y (en) * | 2005-07-15 | 2006-08-30 | 毛广华 | External pressing type quasi-isostatic pressing device for product formed by cylindrical mold |
| CN201361937Y (en) * | 2009-03-19 | 2009-12-16 | 宜兴新威利成耐火材料有限公司 | Isostatic-pressing refractory mold |
| KR100968275B1 (en) * | 2009-10-09 | 2010-07-06 | 범진아이엔디(주) | The mold having structure for auto exhausting gas |
| CN105881717A (en) * | 2016-05-26 | 2016-08-24 | 宁夏机械研究院股份有限公司 | Isostatic compaction mold for ceramic nozzle |
| CN206937551U (en) * | 2017-05-01 | 2018-01-30 | 佛山市顺德区乐从镇迅发陶瓷机械制造有限公司 | A kind of isostatic mould-core of superior performance |
| CN107081844A (en) * | 2017-05-05 | 2017-08-22 | 佛山市东方智柏纳米材料科技有限公司 | A kind of Production of Ceramics pressue device |
| CN211250544U (en) * | 2019-12-11 | 2020-08-14 | 鞍山市神佳耐火材料有限公司 | External isobaric forming die structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200211 |