CN203459681U - Multi-core combination forming mold - Google Patents
Multi-core combination forming mold Download PDFInfo
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- CN203459681U CN203459681U CN201320513401.8U CN201320513401U CN203459681U CN 203459681 U CN203459681 U CN 203459681U CN 201320513401 U CN201320513401 U CN 201320513401U CN 203459681 U CN203459681 U CN 203459681U
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Abstract
The utility model discloses a multi-core combination forming mold, and belongs to the technical field of manufacturing of electronic elements. The multi-core combination forming mold is characterized in that the length of mold columns of a three-column male mold with long mold columns is equal to the height of a mold cavity; the length of mold columns of a three-column male mold with short mold columns is one fifth of the height of the mold cavity; the top end of the mold column of the three-column male mold is provided with a flange skirt; a joint part between the inside of the flange skirt and the top of the mold column transits in an arc form. The multi-core combination forming mold has the beneficial effects that the flange skirt is designed on the top of the male mold, and the joint part between the inside of the flange skirt and the top of the mold column transits in the arc form, so that the corner angle side of a pressed anode porous body is in a circular arc form, and pointed bumps are avoided. Moreover, the mold cavity is provided with three through holes, so that three anode cores can be molded at one step, and the production efficiency is increased.
Description
Technical field
The utility model belongs to electronic devices and components manufacturing technology field, while relating to a kind of manufacture slug type electrolytic capacitor to metal dust casting mould.
Background technology
Electrolytic capacitor refers to that valve metals such as using tantalum, niobium, aluminium, titanium produces, and on the surface of the valve metals such as aluminium, tantalum, niobium, titanium, adopt anodizing production skim oxide as dielectric, the electronic devices and components that the electrolyte of usining forms as negative electrode, comprise and adopt convoluted capacitor and the slug type porous of metal forming coiling anode to stop two kinds of structures of anode.
For slug type porous body anode electrolysis capacitor, its anode bodies is in solid mould after filling-valve metal dust, by mechanical pressure, powder is squeezed into the block of cylindrical, square or other forms, again through oversintering removal of impurities, energize, the process means such as assembling processes, the solid type process of the filling of metal dust in mould, is the moulding of capacitor anode fuse.
At present, no matter be to adopt to make by hand or automatic molding process, mould is all by upper male mould, lower punch and die cavity form, anode block after moulding has the corner angle limit of sharp protrusion in marginal portion, in electrochemical, on anode block, the formation electric current at other positions of formation current ratio at place, corner angle limit is concentrated, corner angle limit is in while there is electrochemical reaction, reaction is violent, caloric value is large, even can see that obvious electric spark produces, cause the oxide-film at place, corner angle limit to occur film crystallization, cause the insulaion resistance of oxide-film to reduce, reduced the quality of anode oxide film, anode block electrical property after severe patient electrochemistry forms is defective.
Summary of the invention
The purpose of this utility model is: a kind of multicore combined shaping mold is provided, and it is a kind of anode fuse mould that there is no a mould multi-product of the sharp edges arm of angle.
The technical solution of the utility model is: two three post punch, die cavity, sleeve and trimmer with three through holes, consist of.
The mould column length of long mould post three post punch and the height of die cavity are isometric, and it is flange shirt rim that the mould column length of short mould post three post punch only has the mould capital end of 1/5th, three post punch of die cavity height, and joint portion inner and mould column top, flange shirt rim is excessively arc.
The beneficial effects of the utility model are: owing to having flange shirt rim in punch top design, and flange shirt rim inner with the junction of mould column top be that arc is excessive, therefore the anode porous body corner angle limit of compacting is circular-arc, does not have sharp protrusion.And because cavity design has three through holes, once just can three anode fuses of moulding, production efficiency is also improved.
Accompanying drawing explanation
Fig. 1 is the utility model mould assembling schematic diagram;
Fig. 2 is the utility model die cavity schematic diagram;
Fig. 3 is the utility model punch schematic diagram;
Fig. 4 is that the utility model is adjusted pad schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in the figure, the 1st, long mould post three post punch, the 2nd, die cavity, the 3rd, short mould post three post punch, the 4th, adjust pad.
During use, short mould post three post punch 3 are inserted die cavity 2 from one end, then in die cavity, load as valve metal powder, again long mould post three post punch 1 are inserted from the other end of die cavity 2, and put adjustment pad 4 at die cavity 2 and 1 of long mould post three post punch, finally mould is applied to mechanical pressure, the size of pressure just makes punch, die cavity and adjusts the gap disappearance between pad.
After mechanical pressure has applied, from mould, take off short mould post three post punch, and put after hollow metal cylinder at short mould post, then mould is applied to mechanical pressure, the anode fuse suppressing is spun off from die cavity.
Claims (1)
1. a multicore combined shaping mold, it is characterized in that: the mould column length of long mould post three post punch and the height of die cavity are isometric, the mould column length of short mould post three post punch only has 1/5th of die cavity height, the mould capital end of three post punch is flange shirt rim, and joint portion inner and mould column top, flange shirt rim is excessively arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513401.8U CN203459681U (en) | 2013-08-22 | 2013-08-22 | Multi-core combination forming mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513401.8U CN203459681U (en) | 2013-08-22 | 2013-08-22 | Multi-core combination forming mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203459681U true CN203459681U (en) | 2014-03-05 |
Family
ID=50172064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320513401.8U Expired - Lifetime CN203459681U (en) | 2013-08-22 | 2013-08-22 | Multi-core combination forming mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203459681U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934227A (en) * | 2015-07-10 | 2015-09-23 | 长春维鸿东光电子器材有限公司 | Tantalum core making technology of high-temperature all-tantalum capacitor |
| CN106611655A (en) * | 2015-07-28 | 2017-05-03 | 长春维鸿东光电子器材有限公司 | Special forming mold for circular tantalum core of tantalum capacitor and using method thereof |
-
2013
- 2013-08-22 CN CN201320513401.8U patent/CN203459681U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934227A (en) * | 2015-07-10 | 2015-09-23 | 长春维鸿东光电子器材有限公司 | Tantalum core making technology of high-temperature all-tantalum capacitor |
| CN106611655A (en) * | 2015-07-28 | 2017-05-03 | 长春维鸿东光电子器材有限公司 | Special forming mold for circular tantalum core of tantalum capacitor and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |