CN203018744U - Prismatic center pillar ri-shaped magnetic core forming mould - Google Patents
Prismatic center pillar ri-shaped magnetic core forming mould Download PDFInfo
- Publication number
- CN203018744U CN203018744U CN 201320007103 CN201320007103U CN203018744U CN 203018744 U CN203018744 U CN 203018744U CN 201320007103 CN201320007103 CN 201320007103 CN 201320007103 U CN201320007103 U CN 201320007103U CN 203018744 U CN203018744 U CN 203018744U
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- center pillar
- magnetic core
- shaped magnetic
- prismatic
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Abstract
The utility model relates to a prismatic center pillar ri-shaped magnetic core forming mould. The prismatic center pillar ri-shaped magnetic core forming mould comprises an upper mould (1), a middle mould (2) and a lower mould (3), wherein the middle part of the middle mould (2) is hollow, and the upper end of the lower mould (3) is inserted the hollow part of the middle mould (2); the lower module (3) is provided with a core rod (4) with a bulge which is flush with the upper surface of the middle mould (2), and the hollow middle part of the middle mould (2) forms a prismatic center pillar ri-shaped cavity; and the upper mould (1) is a convex mould, two sides of center pillar positions of the upper mould (1) and the lower mould (3) are convex, and the end faces of the upper mould (1) and the lower mould (3) are concave half-round grooves. The prismatic center pillar ri-shaped magnetic core forming mould provided by the utility model has the advantages that the cross section of a ri-shaped magnetic core in forming is horizontal, the density of each part is balanced, the manufactural blank can not have cracks due to inconsistencies of expansion rate and shrinking percentage during sintering, and the product quality is improved.
Description
Technical field
The utility model relates to the electronic product production technical field, is specifically related to prismatic center pillar day shaped magnetic core mould.
Background technology
In prior art, core production technique is generally " moulding → sintering → grinding ".Dusty material and binding agent are shaped to blank in mould; Blank is sintering in high temperature furnace; Blank after sintering obtains to meet the magnetic core of size and surface accuracy after grinding.Prior art prismatic center pillar day, the mould of shaped magnetic core was, " △ " type of each moulding of upper and lower mould.Therefore, the center pillar of magnetic core and adjacent both sides density there are differences, during sintering because expansion rate, inconsistent causing of shrinkage factor crack.
The utility model content
For problems of the prior art, the purpose of this utility model is to provide a kind of prismatic center pillar day shaped magnetic core mould, and the density of balance blank each several part during moulding is eliminated crackle.
To achieve these goals, the utility model prismatic center pillar day the shaped magnetic core mould, the cross section of moulding shaped magnetic core in time is level, comprises patrix, middle mould, counterdie.Middle mould middle part hollow out, the hollow out of mould during insert the upper end of counterdie.Counterdie is provided with the plug of projection, and with the upper surface flush of middle mould, the hollow out in the middle part of middle mould forms prismatic center pillar day font die cavity.Patrix is punch; The both sides projection of the center pillar position of patrix and counterdie, end face is recessed half slot.
The utility model prismatic center pillar day the shaped magnetic core mould, the cross section of moulding shaped magnetic core in time is level, can not crack because of expansion rate, inconsistent causing of shrinkage factor when the density of balance blank each several part, the blank sintering of manufacturing, improve the quality of products.
Description of drawings
Fig. 1 is the structural representation of the utility model prismatic center pillar day shaped magnetic core mould.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model preferred embodiment is further illustrated:
As shown in Figure 1, be the structural representation of the utility model prismatic center pillar day shaped magnetic core mould.The utility model prismatic center pillar day the shaped magnetic core mould, comprise patrix (1), middle mould (2), counterdie (3), and powder feeder (11).Powder feeder (11) comprises powder feeding panel (9), is arranged at above middle mould (2), is used for realizing the powder feeding automation; Middle mould (2) middle part hollow out, the hollow out of mould (2) during insert the upper end of counterdie (3); Counterdie (3) is provided with the plug (4) of projection, and with the upper surface flush of middle mould (2), the hollow out in the middle part of middle mould (2) forms prismatic center pillar day font die cavity; Patrix (1) is punch; The both sides projection of the center pillar position of patrix (1) and counterdie (3), end face is recessed half slot.The center pillar position of described middle mould (2) is provided with a square powder groove of drawing, and draws powder device (10) the unnecessary powder of center pillar position and middle mould (2) upper surface is drawn out in order to use.Described counterdie (3) is fixed by die shoe (6) and outside lathe, by the free degree of lower moulded board (8) restriction counterdie (3).Described plug (4) is fixed by mandrel holder (5) and outside lathe, by the free degree of plug pressing plate (7) restriction plug (4).
During use, powder feeder (11) is delivered to middle mould (2) with powder through powder feeding panel (9).Drawing powder device (10) draws out the unnecessary powder of center pillar position and middle mould (2) upper surface.Patrix (1) moves down matched moulds, and powder pressing is shaped to blank.
Claims (6)
- Prismatic center pillar day the shaped magnetic core mould, the cross section of moulding shaped magnetic core in time is level, it is characterized in that: comprise patrix (1), middle mould (2), counterdie (3); Middle mould (2) middle part hollow out, the hollow out of mould (2) during insert the upper end of counterdie (3); Counterdie (3) is provided with the plug (4) of projection, and with the upper surface flush of middle mould (2), the hollow out in the middle part of middle mould (2) forms prismatic center pillar day font die cavity; Patrix (1) is punch; The both sides projection of the center pillar position of patrix (1) and counterdie (3), end face is recessed half slot.
- 2. prismatic center pillar day shaped magnetic core mould as claimed in claim 1, it is characterized in that: the center pillar position of described middle mould (2) is provided with a square powder groove of drawing, and draws powder device (10) the unnecessary powder of center pillar position and middle mould (2) upper surface is drawn out in order to use.
- 3. prismatic center pillar day shaped magnetic core mould as claimed in claim 1 is characterized in that: described counterdie (3) is fixed by die shoe (6) and outside lathe, by the free degree of lower moulded board (8) restriction counterdie (3).
- 4. prismatic center pillar day shaped magnetic core mould as claimed in claim 1 is characterized in that: described plug (4) is fixed by mandrel holder (5) and outside lathe, by the free degree of plug pressing plate (7) restriction plug (4).
- 5. prismatic center pillar day shaped magnetic core mould as claimed in claim 1, is characterized in that: also comprise powder feeder (11), be arranged at above middle mould (2), be used for realizing the powder feeding automation.
- 6. prismatic center pillar day shaped magnetic core mould as claimed in claim 5, it is characterized in that: described powder feeder (11) comprises powder feeding panel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320007103 CN203018744U (en) | 2013-01-05 | 2013-01-05 | Prismatic center pillar ri-shaped magnetic core forming mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320007103 CN203018744U (en) | 2013-01-05 | 2013-01-05 | Prismatic center pillar ri-shaped magnetic core forming mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203018744U true CN203018744U (en) | 2013-06-26 |
Family
ID=48642758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320007103 Expired - Fee Related CN203018744U (en) | 2013-01-05 | 2013-01-05 | Prismatic center pillar ri-shaped magnetic core forming mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203018744U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691943A (en) * | 2013-12-31 | 2014-04-02 | 昆山优磁电子有限公司 | U-F shaped magnetic-core die |
| CN103707400A (en) * | 2013-12-17 | 2014-04-09 | 江苏省晶石磁性材料与器件工程技术研究有限公司 | Mold for preventing EC-shaped manganese zinc ferrite from extending and deforming |
| CN111933438A (en) * | 2020-06-16 | 2020-11-13 | 海宁市康明电子有限公司 | Machining die and machining method for magnetic core with hole capable of being axially opened |
-
2013
- 2013-01-05 CN CN 201320007103 patent/CN203018744U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707400A (en) * | 2013-12-17 | 2014-04-09 | 江苏省晶石磁性材料与器件工程技术研究有限公司 | Mold for preventing EC-shaped manganese zinc ferrite from extending and deforming |
| CN103691943A (en) * | 2013-12-31 | 2014-04-02 | 昆山优磁电子有限公司 | U-F shaped magnetic-core die |
| CN111933438A (en) * | 2020-06-16 | 2020-11-13 | 海宁市康明电子有限公司 | Machining die and machining method for magnetic core with hole capable of being axially opened |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20160105 |