CN203110383U - Unidirectional forming die for powder - Google Patents
Unidirectional forming die for powder Download PDFInfo
- Publication number
- CN203110383U CN203110383U CN 201220734877 CN201220734877U CN203110383U CN 203110383 U CN203110383 U CN 203110383U CN 201220734877 CN201220734877 CN 201220734877 CN 201220734877 U CN201220734877 U CN 201220734877U CN 203110383 U CN203110383 U CN 203110383U
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- China
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- die
- counterdie
- mould
- unidirectional
- powder
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Abstract
The utility model relates to a unidirectional forming die for powder. The die consist of an upper die, a die sleeve, a core rod, an inserting sheet, a die stripping ring, and a lower die of which the upper end is provided with a ring-shaped step, wherein the die sleeve is sleeved at the upper end of the lower die and is buckled and matched with the lower die; the inserting sheet is mounted between the die sleeve and the ring-shaped step of the lower die; the core rod is placed in the die sleeve; the upper die is matched with the shape of an inner cavity of the die sleeve; the middle part of the die stripping ring is recessed inwards to form a circular step; and the circular step is buckled and matched with an excircle at the lower end outside the lower die. Compared with the prior art, the unidirectional forming die has the advantages that the problem of size distortion after the sintering, which is caused by blank density unevenness resulted from unidirectional forming of the powder, is solved, the uniformity of sample sizes is improved, and the accuracy of various test result depending on the sample sizes is guaranteed.
Description
Technical field
The utility model relates to the unidirectional mould of a kind of powder, belongs to the powder moulding mold equipment technical field.
Background technology
Powder technology is widely used in manufacturing fields such as magnetic material, powder metallurgy, pottery.Existing powder technology develops into two-way moulding by unidirectional moulding, and former develops into the automatic rotary press by manual one-shot formula press.In the prior art, because the general volume of self-action press of two-way moulding is bigger, also need customize accessories such as mould bases, not only assembling is complicated, and the adjusting process parameter is loaded down with trivial details, in the laboratory, small-sized workplace and inapplicable.Though and the press of unidirectional moulding mostly is hand, volume is less, and operation and adjustment parameter are simple, is fit to the product of compacting sample and small lot.But the deficiency of unidirectional moulding press is, owing to be unidirectional moulding, can cause the blank density unevenness even and cause size distortion behind the sintering, not only influences product appearance, and can increase the error of the various test results that depend on sample size.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of powder unidirectional mould, and is even with the blank density of this Mould Machining, avoided causing because the blank density unevenness is even size distortion behind the sintering, improved the uniformity of sample size.
The technical scheme that the utility model addresses the above problem is as follows:
The unidirectional mould of a kind of powder is characterized in that:
This mould is by patrix, the mould cover, and plug, inserted sheet, stripper rings and upper end have the counterdie of circular step to be formed,
Described mould cover is set in the upper end of counterdie and interlocks and matches; described inserted sheet is installed between mould cover and the counterdie circular step; be placed with plug in the mould cover; patrix matches with mould cover cavity shape; the inside recessed formation step cutting pattern in described stripper rings middle part, this step cutting pattern and counterdie outer lower end cylindrical interlock and match.
Further, the outer edge of the bottom surface of described patrix all has 0 °～45 ° chamferings, and the outer edge of the upper bottom surface of described counterdie all has 0 °～45 ° chamferings.
As preferably, the height of described counterdie step is 1/10～1/2 of counterdie total height.
Described inserted sheet is the semicircular stainless steel substrates.
Use of the present utility model is, during powder compacting, the mould cover is inserted in the counterdie upper end, and inserted sheet is placed between mould cover and the counterdie circular step, puts into powder, the patrix of plug, preparation moulding then successively.Set value at 50% o'clock being applied to briquetting pressure, shed pressure, extract inserted sheet, again with the compacting of briquetting pressure setting value.During the demoulding, the upright position of upper die and lower die is exchanged, then the stripper rings openend is placed the counterdie lower end, apply certain pressure after, can realize the demoulding.
Compared with prior art, the utility model the utility model has solved powder unidirectional moulding and has caused the blank density unevenness even and cause size distortion behind the sintering, improve the uniformity of sample size, guaranteed to depend on the various precision of test result of sample size.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of inserted sheet in the utility model.
Among the figure: 1, patrix; 2, mould cover; 21, mould cover inner chamber; 3, plug; 4, counterdie;
5, inserted sheet; 6, stripper rings; 61 step cutting patterns.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
In conjunction with shown in Figure 1, the unidirectional mould of a kind of powder is characterized in that:
This mould is by patrix 1, and mould overlaps 2, and plug 3, inserted sheet 5, stripper rings 6 and upper end have the counterdie 4 of circular step to be formed,
Described mould cover 2 is set in the upper end of counterdie 4 and interlocks and matches; described inserted sheet 5 is installed between mould cover and the counterdie circular step; be placed with plug 3 in the mould cover; patrix matches with the shape of mould cover inner chamber 21; the inside recessed formation step cutting pattern 61 in described stripper rings middle part, this step cutting pattern and counterdie outer lower end cylindrical interlock and match.
The outer edge of the bottom surface of described patrix all has 0 °～45 ° chamferings, and the outer edge of the upper bottom surface of described counterdie all has 0 °～45 ° chamferings.
The height of described counterdie step is 1/10～1/2 of counterdie total height.
As shown in Figure 2, described inserted sheet is the semicircular stainless steel substrates.
Use of the present utility model is, during powder compacting, the mould cover is inserted in the counterdie upper end, and inserted sheet is placed between mould cover and the counterdie circular step, puts into powder, the patrix of plug, preparation moulding then successively.Set value at 50% o'clock being applied to briquetting pressure, shed pressure, extract inserted sheet, again with the compacting of briquetting pressure setting value.During the demoulding, the upright position of upper die and lower die is exchanged, then the stripper rings openend is placed the counterdie lower end, apply certain pressure after, can realize the demoulding.Adopt this method in conjunction with the utility model, be equivalent to post forming, it is even and cause the problem of the size distortion behind the sintering to have solved blank density unevenness after the unidirectional moulding.
Claims (4)
1. unidirectional mould of powder is characterized in that:
This mould is by patrix (1), mould cover (2), and plug (3), inserted sheet (5), stripper rings (6) and upper end have the counterdie (4) of circular step to be formed,
Described mould cover (2) is set in the upper end of counterdie (4) and interlocks and matches; described inserted sheet (5) is installed between mould cover and the counterdie circular step; be placed with plug (3) in the mould cover; patrix matches with the shape of mould cover inner chamber (21); described stripper rings middle part inside recessed formation step cutting pattern (61), this step cutting pattern and counterdie outer lower end cylindrical interlock and match.
2. the unidirectional mould of powder according to claim 1 is characterized in that:
The outer edge of the bottom surface of described patrix all has 0 °～45 ° chamferings, and the outer edge of the upper bottom surface of described counterdie all has 0 °～45 ° chamferings.
3. the unidirectional mould of powder according to claim 1 and 2 is characterized in that:
The height of described counterdie step is 1/10～1/2 of counterdie total height.
4. the unidirectional mould of powder according to claim 1 is characterized in that:
Described inserted sheet is the semicircular stainless steel substrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734877 CN203110383U (en) | 2012-12-27 | 2012-12-27 | Unidirectional forming die for powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734877 CN203110383U (en) | 2012-12-27 | 2012-12-27 | Unidirectional forming die for powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203110383U true CN203110383U (en) | 2013-08-07 |
Family
ID=48890760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220734877 Expired - Lifetime CN203110383U (en) | 2012-12-27 | 2012-12-27 | Unidirectional forming die for powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203110383U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106626505A (en) * | 2017-01-17 | 2017-05-10 | 博罗县何氏模具制造有限公司 | Forming die and method for forming products by using forming die |
| CN107379619A (en) * | 2017-07-25 | 2017-11-24 | 北京理工大学 | A kind of powder presser die and tabletting method for being easy to move back mould |
-
2012
- 2012-12-27 CN CN 201220734877 patent/CN203110383U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106626505A (en) * | 2017-01-17 | 2017-05-10 | 博罗县何氏模具制造有限公司 | Forming die and method for forming products by using forming die |
| CN107379619A (en) * | 2017-07-25 | 2017-11-24 | 北京理工大学 | A kind of powder presser die and tabletting method for being easy to move back mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |