CN201308993Y - Case powder injection forming mold of signal isolator - Google Patents
Case powder injection forming mold of signal isolator Download PDFInfo
- Publication number
- CN201308993Y CN201308993Y CNU2008202165418U CN200820216541U CN201308993Y CN 201308993 Y CN201308993 Y CN 201308993Y CN U2008202165418 U CNU2008202165418 U CN U2008202165418U CN 200820216541 U CN200820216541 U CN 200820216541U CN 201308993 Y CN201308993 Y CN 201308993Y
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- injection
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- mold
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Abstract
The utility model relates to a power injection forming mold, in particular to a case powder injection forming mold of signal isolator, which comprises a fixed mold and a moving mold, wherein the fixed mold is provided with a fixed mold cavity; the moving mold is provided with a moving mold cavity; the fixed mold cavity and the moving mold cavity form an enclosed outer contour of an injection blank; two edges of the injection blank in the moving mold cavity are respectively provided with a rectangle gate; a main runner, a first-stage sub runner and a second-stage sub runner are provided from the gates in turn along the outer contour of the injection blank; the material is injected via the gates to pass the main runner, the first-stage sub runner and the second-stage sub runner to fill the whole cavity. The case powder injection forming mold adopts two gates for injection and adopts a two-time ejection mechanism to avoid the defects such as incomplete injection, concave-convex gates, deformation and concentrated stress, while the mold has simple and durable structure and short forming period.
Description
Technical field
The utility model relates to powder injection-molded mould, the powder injection-molded mould of especially a kind of signal isolator housing.
Background technology
Metal powder injection molded (MIM) is a new forming technique that develops rapidly in the world in recent years, it is advantageous that the small-sized parts that can form any complicated shape, and each position density of goods is even, excellent performance.General technological process is for to be uniformly mixed into fine metal dust and organic binder for having the material of rheological characteristic, the die cavity that adopts advanced injector injection to have part shape forms blank, new technology removes adhesive and through sintering, make its high compaction become metallic article, critical process utilizes mould to obtain given shape exactly, and this and plastic injection mold have a lot of resemblances.Itself high metal dust content of the feeding of powder injection forming has determined flowability that it is relatively low and the characteristics that are separated easily, product is also more stable during the moulding miniature parts, but problem is just more when the big and thin part of injection moulding, product quality is understable, and large-scale cavity part is general much thinner, and hole and inner core are many, full in order to guarantee complete injection moulding, cast gate often is chosen on the long straight flange and opens down gate, and cast gate area and cast gate width are longer, can reach 50mm.If pressure is on the low side during injection, regular meeting occurs that injection is discontented, cast gate caves inward bending, and when pressure was high slightly, regular meeting cast gate occurred and bloats again, and bulk deformation strengthens, stress is concentrated and cracked.
The utility model content
The technical problems to be solved in the utility model is: in order to overcome the forming defect problem of large-scale signal isolator housing, the utility model provides a kind of signal isolator housing injecting molding die, and this mould has solved defectives such as the injection moulding that occurs when large-scale signal isolator housing is injected is discontented, cast gate is concavo-convex, product is out of shape, stress is concentrated.
The technical scheme that its technical problem that solves the utility model adopts is: the powder injection-molded mould of a kind of signal isolator housing, has fixed half and moving half, has the cover half die cavity in the cover half, has the dynamic model die cavity in the dynamic model, the overall space that the cover half die cavity becomes with dynamic model die cavity closed group is shaped as the outer contour shape of injection blank, the both sides of movable model intracavitary administration blank are respectively equipped with a rectangular cast gate, be disposed with sprue from cast gate along injection blank outline, the one-level runner, the secondary runner, material is by the cast gate injection and pass through sprue, the one-level runner, the secondary runner is filled with whole die cavity.
Described sprue end and one-level runner end are respectively arranged with slag well, can reduce heat and scatter and disappear, and avoid reducing flow resistance and pressure loss.
Boss in the described dynamic model die cavity is a mold insert formula boss, to increase exhaust.
Described dynamic model is provided with the ejecting mechanism of the injection blank being released whole die cavity, and ejecting mechanism is a secondary ejecting mechanism.
The beneficial effects of the utility model are: the injection of employing double teeming mouth, and secondary ejecting mechanism has been avoided the defective that injection moulding is discontented, cast gate is concavo-convex, product is out of shape, stress is concentrated, mould structure simple and durable, molding cycle weak point.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the dynamic model structural representation.
Fig. 3 is the structural representation of cover half.
Among the figure: 1. cover half, 11. cover half die cavities, 2. dynamic model, 21. dynamic model die cavities, 22. cast gates, 23. sprues, 24. one-level runners, 25. secondary runners, 26. mold insert formula boss, 3. slag well, 4. secondary ejecting mechanisms.
The specific embodiment
Shown in Fig. 1～3, the powder injection-molded mould of a kind of signal isolator housing, have cover half 1 and dynamic model 2, has cover half die cavity 11 in the cover half 1, has dynamic model die cavity 21 in the dynamic model 2, cover half die cavity 11 is shaped as the outer contour shape of injecting blank with the dynamic model die cavity 21 closed overall spaces of forming, this mould is that a shot molds two injection blanks, cover half die cavity 11 is deepened 0.6mm on the product original base, to reduce the distortion of product, guarantee the flatness when back processing polishes, the both sides of injection blank are respectively equipped with a rectangular cast gate 22 in the dynamic model die cavity 21, gate size is 10 * 2mm, be disposed with sprue 23 from cast gate 22 along injection blank outline, one-level runner 24, secondary runner 25, material is by cast gate 22 injections and by sprue 23, one-level runner 24, secondary runner 25 is filled with whole die cavity.
As shown in Figure 2, sprue 23 ends and one-level runner 24 ends are respectively arranged with slag well 3, adopt slag well 3 to collect the runner cold burdens, can reduce heat and scatter and disappear, and avoid reducing flow resistance and pressure loss; Boss in the dynamic model die cavity 21 is a mold insert formula boss 26, to increase exhaust.
As shown in Figure 1, dynamic model 2 is provided with the ejecting mechanism of the injection blank being released whole die cavity, ejecting mechanism is a secondary ejecting mechanism 4, promptly injecting blank is pushed out earlier with whole dynamic model face, cause the mold insert formula boss 26 preferential demouldings that coated by feeding, after mold insert formula boss 26 was thrown off fully, the dynamic model face was released and is limited the position, thimble in the ejecting mechanism moves on product is separated with the dynamic model face, and the secondary pushing method is fine to have solved that product ejects distortion and the stress when ejecting is concentrated.
Claims (4)
1. powder injection-molded mould of signal isolator housing, have cover half (1) and dynamic model (2), has cover half die cavity (11) in the cover half (1), has dynamic model die cavity (21) in the dynamic model (2), cover half die cavity (11) is shaped as the outer contour shape of injecting blank with the closed overall space of forming of dynamic model die cavity (21), it is characterized in that: the both sides of injection blank are respectively equipped with a rectangular cast gate (22) in the dynamic model die cavity (21), be disposed with sprue (23) from cast gate (22) along injection blank outline, one-level runner (24), secondary runner (25), material is by cast gate (22) injection and by sprue (23), one-level runner (24), secondary runner (25) is filled with whole die cavity.
2. the powder injection-molded mould of a kind of signal isolator housing according to claim 1 is characterized in that: described sprue (23) end and one-level runner (24) end are respectively arranged with slag well (3).
3. the powder injection-molded mould of a kind of signal isolator housing according to claim 1 is characterized in that: the boss in the described dynamic model die cavity (21) is a mold insert formula boss (26).
4. the powder injection-molded mould of a kind of signal isolator housing according to claim 1 is characterized in that: described dynamic model (2) is provided with the ejecting mechanism of the injection blank being released whole die cavity, and ejecting mechanism is secondary ejecting mechanism (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202165418U CN201308993Y (en) | 2008-11-10 | 2008-11-10 | Case powder injection forming mold of signal isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202165418U CN201308993Y (en) | 2008-11-10 | 2008-11-10 | Case powder injection forming mold of signal isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201308993Y true CN201308993Y (en) | 2009-09-16 |
Family
ID=41106245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202165418U Expired - Fee Related CN201308993Y (en) | 2008-11-10 | 2008-11-10 | Case powder injection forming mold of signal isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201308993Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357879A (en) * | 2012-03-29 | 2013-10-23 | 精工爱普生株式会社 | Forming die for metal powder injection formation |
| CN103357871A (en) * | 2012-03-29 | 2013-10-23 | 精工爱普生株式会社 | Forming die for metal powder injection formation |
| CN109014212A (en) * | 2018-08-15 | 2018-12-18 | 上海精科粉末冶金科技有限公司 | A kind of processing method of metal injection molding technology production 5G communication isolator |
-
2008
- 2008-11-10 CN CNU2008202165418U patent/CN201308993Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357879A (en) * | 2012-03-29 | 2013-10-23 | 精工爱普生株式会社 | Forming die for metal powder injection formation |
| CN103357871A (en) * | 2012-03-29 | 2013-10-23 | 精工爱普生株式会社 | Forming die for metal powder injection formation |
| CN103357879B (en) * | 2012-03-29 | 2016-06-08 | 精工爱普生株式会社 | Metal powder injection molded shaping dies |
| CN103357871B (en) * | 2012-03-29 | 2016-08-10 | 精工爱普生株式会社 | Metal powder injection molded shaping dies |
| TWI611898B (en) * | 2012-03-29 | 2018-01-21 | Seiko Epson Corp | Forming mold for metal powder injection molding |
| CN109014212A (en) * | 2018-08-15 | 2018-12-18 | 上海精科粉末冶金科技有限公司 | A kind of processing method of metal injection molding technology production 5G communication isolator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changzhou Gian Technology Co., Ltd. Assignor: Wang Mingxi Contract record no.: 2010320000531 Denomination of utility model: Case powder injection forming mold of signal isolator Granted publication date: 20090916 License type: Exclusive License Record date: 20100506 |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 213023, Hexi Road, Changzhou Economic Development Zone, Jiangsu, China, No. 16-8, Hexi Road Patentee after: Wang Mingxi Address before: 213023 Jiangsu province Changzhou City Zhonglou District Xinggang Road No. 65-8 Patentee before: Wang Mingxi |
|
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU GIAN TECHNOLOGY CO., LTD. Effective date: 20120504 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120504 Address after: 213023, Hexi Road, Changzhou Economic Development Zone, Jiangsu, China, No. 16-8, Hexi Road Patentee after: Changzhou Gian Technology Co., Ltd. Address before: 213023, Hexi Road, Changzhou Economic Development Zone, Jiangsu, China, No. 16-8, Hexi Road Patentee before: Wang Mingxi |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20151110 |
|
| EXPY | Termination of patent right or utility model |