CN204135339U - A kind of mould preventing injection orifice from blocking - Google Patents
A kind of mould preventing injection orifice from blocking Download PDFInfo
- Publication number
- CN204135339U CN204135339U CN201420577249.4U CN201420577249U CN204135339U CN 204135339 U CN204135339 U CN 204135339U CN 201420577249 U CN201420577249 U CN 201420577249U CN 204135339 U CN204135339 U CN 204135339U
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- CN
- China
- Prior art keywords
- injection orifice
- mould
- main cavity
- auxiliary
- auxiliary chamber
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of mould preventing injection orifice from blocking, the cavity body of mould comprising body (1) and be arranged in body (1), cavity body of mould is divided into main cavity (2) and auxiliary chamber (3), auxiliary chamber (3) is arranged an injection orifice communicated with it (4), when material base cooling forming, injection orifice does not directly communicate with main cavity, therefore, fluid powder auxiliary in injection orifice can not be subject to the impact of material base in main cavity and become slip, and, an equipped auxiliary pressure head in auxiliary chamber, when auxiliary pressure head is to mould inner pressure, the path of injection orifice and auxiliary chamber can be cut off, thus cut off cold and hot exchange between main cavity and injection orifice further, ensure that the fluidization aid of injection orifice is all the time in fluid state, not only effectively prevent the obstruction of injection orifice, also assisted heating device can be saved, substantially reduce energy consumption and single product molding time, reduce the difference in material base temperature field.
Description
Technical field
The utility model relates to a kind of mould, is specially adapted to powder injection molding process.
Background technology
Powder metallurgy refers to and adopts the mixture of metal, metal dust or metal dust and non-metal powder as raw material, through being shaped and sintering, manufactures the technology of metal material, composite and all kinds goods.Powder metallurgic method has similar place to production pottery, and therefore, a series of New Technologies In Powder Metallu Rgy also can be used for the preparation of ceramic material.Due to the advantage of PM technique, it has become the key solving new material problem, plays a part very important in the development of new material.
In powder injection molding process, need the powder being carried out some flow promortors of admixture by the injection orifice be arranged on mould side wall, and cool after entering die cavity by external pressure extruding, thus form material base.Owing to there is colding and heat succeed each other between original raw material and the flow promortor powder of admixture, add that injection orifice directly directly communicates with the inner chamber of mould, therefore, material base is when cooling, in injection orifice, the powder of original flow promortor forms slip gradually, and the injection orifice of mould side wall is easy to be blocked by these slips.
Usually the method adopted for this obstructing problem is at present: install assisted heating device additional on injection orifice side, when after taking-up material base, starts this assisted heating device, makes the slip of obstruction injection orifice return to fluid state, thus again make injection orifice become unobstructed.The mould of this structure needs material base to cool usually and injection orifice recovers unobstructed two kinds of patterns and intersects and carry out, therefore, add the compressing time of one-off, and energy consumption is comparatively large, installs assisted heating device additional in mould, the temperature field of whole mould also can be caused uneven, due to the physical characteristic of expanding with heat and contract with cold, slurry different parts when cooled and solidified shrinks different, makes the size of material base to produce deviation, has a strong impact on product quality.
Utility model content
For above-mentioned deficiency, the utility model provides a kind of mould, and this injection moulding effectively can avoid the obstruction of injection orifice, reduces the temperature field difference of material base and whole mould, is conducive to the size Control of shaped article, improves quality of finished further.
The utility model is realized by such technical scheme: a kind of mould preventing injection orifice from blocking, the cavity body of mould comprising body and arrange in the body, described cavity body of mould is divided into main cavity and auxiliary chamber, described auxiliary chamber is arranged an injection orifice communicated with it, for the injection of slurry.
Further, an equipped main pressure head that can reciprocate in main cavity in described main cavity, the outer wall of described main pressure head and the inwall size and shape of main cavity adapt.
Further, an equipped auxiliary pressure head that can reciprocate in described auxiliary chamber in described auxiliary chamber, the outer wall of described auxiliary pressure head and the inwall size and shape of auxiliary chamber adapt.
Further, this mould also comprises temperature control system, and this temperature control system is positioned at the below of described main cavity.
Owing to have employed said structure, the cavity of existing structure is divided into two cavitys by the injecting molding die that the utility model provides, i.e. main cavity and auxiliary chamber, and injection orifice is arranged in auxiliary chamber, therefore, when material base cooling forming, injection orifice does not directly communicate with main cavity, therefore, fluid powder auxiliary in injection orifice can not be subject to the impact of material base in main cavity and become slip, and, an equipped auxiliary pressure head in auxiliary chamber, the break-make of auxiliary die cavity and injection orifice is controlled by auxiliary pressure head push-and-pull, thus cut off cold and hot exchange between main cavity and injection orifice further, ensure that the fluidization aid of injection orifice is all the time in fluid state, not only effectively prevent the obstruction of injection orifice, also assisted heating device can be saved, substantially reduce energy consumption and single product molding time, reduce the difference in material base temperature field, be conducive to controling effectively to the size of product and quality.
Accompanying drawing explanation
Fig. 1 is the internal structure sketch of this case injecting molding die.
Detailed description of the invention
In order to clearly understand the purpose of this utility model, technical scheme and beneficial effect, below in conjunction with accompanying drawing, the utility model is described further, but protection domain of the present utility model is not limited in the examples below.
As shown in Figure 1, a kind of mould preventing injection orifice from blocking, the cavity body of mould comprising body 1 and be arranged in body 1, this cavity body of mould is divided into main cavity 2 and auxiliary chamber 3, described auxiliary chamber 3 is arranged an injection orifice communicated with it 4; An equipped main pressure head 5 that can reciprocate in main cavity 2 in main cavity 2, the described outer wall of main pressure head 5 and the inwall size and shape of main cavity 2 adapt, that is, the outer wall of main pressure head 5 is slightly less than the inwall of main cavity 2, and shape is substantially identical; An equipped auxiliary pressure head 6 that can reciprocate in described auxiliary chamber 3 in auxiliary chamber 3, the outer wall of described auxiliary pressure head 6 and the inwall size and shape of auxiliary chamber 3 adapt, namely both shapes are substantially identical, and the outer wall of auxiliary pressure head 6 is slightly less than the inwall of auxiliary chamber 3; This mould also comprises temperature control system 7, and this temperature control system 7 is positioned at the below of described main cavity 2, to control the temperature field of mould.
The job step of this mould is:
(1) raw material of fluid state fills up whole main cavity 2 and auxiliary chamber 3 by injection orifice 4;
(2) pressure head 6 will be assisted to promote to main cavity 2 direction, because the outer wall of auxiliary pressure head 6 and the outer wall shape size of auxiliary chamber 3 adapt, when its end portion exceedes injection orifice 4 position, automatically injection orifice 4 is closed, thus cut off the injection of auxiliary agent in injection orifice 4;
(3) main pressure head 5 moves down the size controlling product, when after the raw material in main cavity 2 wherein cooling curing, takes out main pressure head 5, is then taken out by material base;
(4) main pressure head 5 is put into main cavity 2, and auxiliary pressure head 6 is pulled outward, then repeat step (1) to (3), with this repeatedly.
Claims (4)
1. the mould that can prevent injection orifice from blocking, the cavity body of mould comprising body (1) and be arranged in body (1), it is characterized in that, described cavity body of mould is divided into main cavity (2) and auxiliary chamber (3), described auxiliary chamber (3) is arranged an injection orifice communicated with it (4).
2. mould as claimed in claim 1, it is characterized in that, an equipped main pressure head (5) that can reciprocate in main cavity (2) in described main cavity (2), the outer wall of described main pressure head (5) and the inwall size and shape of main cavity (2) adapt.
3. mould as claimed in claim 1, it is characterized in that, an equipped auxiliary pressure head (6) that can reciprocate in described auxiliary chamber (3) in described auxiliary chamber (3), the outer wall of described auxiliary pressure head (6) and the inwall size and shape of auxiliary chamber (3) adapt.
4. the mould as described in claim 1,2 or 3, is characterized in that, this mould also comprises temperature control system (7), and this temperature control system (7) is positioned at the below of described main cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420577249.4U CN204135339U (en) | 2014-10-08 | 2014-10-08 | A kind of mould preventing injection orifice from blocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420577249.4U CN204135339U (en) | 2014-10-08 | 2014-10-08 | A kind of mould preventing injection orifice from blocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204135339U true CN204135339U (en) | 2015-02-04 |
Family
ID=52412057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420577249.4U Expired - Fee Related CN204135339U (en) | 2014-10-08 | 2014-10-08 | A kind of mould preventing injection orifice from blocking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204135339U (en) |
-
2014
- 2014-10-08 CN CN201420577249.4U patent/CN204135339U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 237000 four longitudinal road, Lu'an economic and Technological Development Zone, Anhui Patentee after: ANHUI HANHAI NEW MATERIAL CO., LTD. Address before: 237000 four longitudinal road, Lu'an economic and Technological Development Zone, Anhui Patentee before: Anhui Province big desert new material Co., Ltd |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Die capable of preventing injection hole from being blocked Effective date of registration: 20181126 Granted publication date: 20150204 Pledgee: Lu'an finance Company limited by guarantee Pledgor: ANHUI HANHAI NEW MATERIAL CO., LTD. Registration number: 2018340000675 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20191008 |