CN104309158B - A kind of combined powder moulding mold - Google Patents
A kind of combined powder moulding mold Download PDFInfo
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- CN104309158B CN104309158B CN201410415131.6A CN201410415131A CN104309158B CN 104309158 B CN104309158 B CN 104309158B CN 201410415131 A CN201410415131 A CN 201410415131A CN 104309158 B CN104309158 B CN 104309158B
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Abstract
The present invention provides a kind of combined powder moulding mold, including upper mold, die and lower mold, described lower mold includes two or more assemblies, lower mold includes lower mould body, motion bar, lower mold base and spring, described lower mold body lower part center is cavity structure, and motion bar is arranged in cavity, and lower mould body is fixed in one end, the other end is movably connected on lower mold base, and relative lower mold base makees sliding motion；Spring housing is on motion bar, and top set is between lower mould body and lower mold base.This combined powder moulding mold that the present invention provides, one-shot forming, the process do not removed by auxiliary limit foot after depanning, product quality is compacted, and improves product total quality, makes operating procedure simple simultaneously, saves again powder and reduces cost.
Description
Technical field
The present invention relates to a kind of combined powder moulding mold, belong to field of mechanical technique.
Background technology
The mould design of combined powder special shape, the design of its routine includes that the molding mode of upper mold, die and lower mold, subject matter point have two: 1, limit foot upwards molding, the step of limit foot and bottom is excessive, limit foot density is the most loose, and other density is very tight, and the density contrast that both produce is the biggest；2, limit foot makes activity lower mold to compacted under, limit foot, it is ensured that compact density is poor, but after molding, product cannot eject from die, and when limit foot activity lower mold ejects, blank ruptures, and only limit placement of foot can eject from die.
Special requirement product concrete shape word describes: bottom area is very big, and limit instep is long-pending less, mal-distribution, it is impossible to enough by opposite side foot applying thrust, is released by product from mould.
Current method is additionally to increase several auxiliary foots on instep again, and design limit foot is contour；Auxiliary limit foot is removed trying every possible means after depanning, but this mode of operation, and operating procedure is numerous and diverse, wastes powder, increases cost.
Summary of the invention
The present invention provides a kind of combined powder moulding mold, one-shot forming, and the process do not removed by auxiliary limit foot after depanning, operating procedure is simple, saves powder, reduces cost.
For solving above technical problem, the present invention provides following technical scheme: a kind of combined powder moulding mold, described mould includes upper mold, die and lower mold, it it is the limit foot product up or down of powder compacting between upper mold and lower mold, die is located at the both sides between upper die and lower die, bottom upper mold, vacancy and lower mold top vacancy constitute the shape of powder compacting product, described lower mold includes two or more assemblies, lower mold includes lower mould body, motion bar, lower mold base and spring, described lower mold body lower part center is cavity structure, motion bar is arranged in cavity, lower mould body is fixed in one end, the other end is movably connected on lower mold base, lower mold base relatively makees sliding motion；Spring housing is on motion bar, and top set is between lower mould body and lower mold base；
Wherein, bottom upper mold, vacancy height is A, and the difference in height between die top and lower mold base top is B, difference in height between lower mold bodies top height and lower mold base top is C, and die top and lower mold bodies top difference in height are D, and product height overall is H, the a height of h of foot, mold charge ratio is set as a
A=h
B=H*a=C+D
C=E=h*a
D=(H-h)*a。
Forming process is as follows: stroke 1: upper mold is suppressed downwards, descends mould body to walk downwards distance E simultaneously；
Stroke 2: upper mold is withdrawn from；
Stroke 3: die moves down, product is ejected by lower mold, and spring is in compressive state；
Stroke 4: move on die, utilize frictional force and spring force, by spring reset to initial state；
Stroke 5: pusher filler, starts new round compacting.
This combined powder moulding mold that the present invention relates to, for the die design schemes of some special requirement products of powder compacting, is particularly suited for the molding of manganese-zinc ferrite.The product that this mould is suppressed out, the density of various piece is the finest and close, does not haves the defect that part is compacted, part is relaxed, and improves product quality.
Accompanying drawing explanation
Fig. 1 is the present invention combined powder moulding mold product structure schematic diagram；
Fig. 2 is the present invention combined powder moulding mold upper die structure schematic diagram；
Fig. 3 is the present invention combined powder moulding mold die and lower die structure schematic diagram；
Fig. 4 be the present invention combined powder moulding mold cross section be trapezoidal product front view；
Fig. 5 be the present invention combined powder moulding mold cross section be trapezoidal product top view；
Fig. 6 be the present invention combined powder moulding mold cross section be fan-shaped product front view；
Fig. 7 be the present invention combined powder moulding mold cross section be fan-shaped product top view；
Fig. 8 be the present invention combined powder moulding mold cross section be the product front view of double arc；
Fig. 9 be the present invention combined powder moulding mold cross section be the product top view of double arc.
Detailed description of the invention
As shown in Figure 1-Figure 3, a kind of combined powder moulding mold, described mould includes upper mold 2, die 3 and lower mold, it it is the limit foot product 1 up or down of powder compacting between upper mold and lower mold, die 3 is located at the both sides between upper mold 2 and lower mold, bottom upper mold, vacancy and lower mold top vacancy constitute the shape of powder compacting product 1, described lower mold includes two or more assemblies, lower mold includes lower mould body 4, motion bar 7, lower mold base 5 and spring 6, it is cavity structure at described lower mould body 4 lower central, motion bar 7 is arranged in cavity, lower mould body 4 is fixed in one end, the other end is movably connected on lower mold base 5, lower mold base 5 relatively makees sliding motion；Spring 6 is enclosed within motion bar, and top set is between lower mould body 4 and lower mold base 5；Spring 6, when molding pressurized, plays cushioning effect, it is to avoid movable part and fixture sharp impacts, can assist pulling force simultaneously, at the end of forming stroke, make each assembly playback.
Wherein, bottom upper mold, vacancy height is A, difference in height between die 3 top and lower mold base 5 top is B, difference in height between lower mould body 4 overhead height and lower mold base 5 top is C, die 3 top and lower mould body 4 overhead height difference are D, and product height overall is H, a height of h of foot, mold charge ratio is set as a
A=h
B=H*a=C+D
C=E=h*a
D=(H-h)*a。
Forming process is as follows: stroke 1: upper mold 2 is suppressed downwards, descends mould body 4 to walk downwards distance E simultaneously；
Stroke 2: upper mold 2 is withdrawn from；
Stroke 3: die 3 moves down, and product is ejected by lower mold, spring 6 is in compressive state；
Stroke 4: move on die 3, utilize frictional force and spring force, spring 6 is reset to initial state；
Stroke 5: pusher filler, starts new round compacting.
The longitudinal section of described lower mold base is that L-shaped or the simple limit such as U-shaped foot force cannot the products of depanning.
The cross section of powder compacting product is rectangle, sector, trapezoidal or taper.
Such as Fig. 4-Fig. 5, for the structure chart of trapezoid cross section product, as long as can produce identical with this product cross section for the cross section of upper mold, die and lower mold, as long as and height for each parts follows the above.
Such as Fig. 6-Fig. 9, be respectively the structure chart of fan-shaped and double arc section products, with above-mentioned in like manner.
This combined powder moulding mold that the present invention relates to, by the lower mold of one originally, split into two assemblies, if fruit product step is more than or equal to two, can also split into two and the assembly of above quantity, each assembly uses motion bar to be connected with lower mold base with spring.Spring, when molding pressurized, plays cushioning effect, it is to avoid movable part and fixture sharp impacts, can assist pulling force simultaneously, at the end of forming stroke, make each assembly playback.
Detailed description of the invention of the present invention is not intended that the restriction to the application scope; within every spirit at present inventive concept and principle, any amendment, equivalent and improvement etc. that one of skill in the art can make should be included within the scope of the present invention.
Claims (3)
1. a combined powder moulding mold, described mould includes upper mold, die and lower mold, it it is the limit foot product up or down of powder compacting between upper mold and lower mold, die is located at the both sides between upper die and lower die, bottom upper mold, vacancy and lower mold top vacancy constitute the shape of powder compacting product, it is characterized in that, described lower mold includes two or more assembly, lower mold includes lower mould body, motion bar, lower mold base and spring, described lower mold body lower part center is cavity structure, motion bar is arranged in cavity, lower mould body is fixed in one end, the other end is movably connected on lower mold base, lower mold base relatively makees sliding motion；Spring housing is on motion bar, and top set is between lower mould body and lower mold base；Wherein, bottom upper mold, vacancy height is A, and the difference in height between die top and lower mold base top is B, difference in height between lower mold bodies top height and lower mold base top is C, and die top and lower mold bodies top difference in height are D, and product height overall is H, the a height of h of foot, mold charge ratio is set as a
A=h
B=H*a=C+D
C=E=h*a
D=(H-h)*a；
Forming process is as follows: stroke 1: upper mold is suppressed downwards, descends mould body to walk downwards distance E simultaneously；
Stroke 2: upper mold is withdrawn from；
Stroke 3: die moves down, product is ejected by lower mold, and spring is in compressive state；
Stroke 4: move on die, utilize frictional force and spring force, by spring reset to initial state；
Stroke 5: pusher filler, starts new round compacting.
2. according to the combined powder moulding mold of the one described in claim 1, it is characterised in that the longitudinal section of described lower mold base is L-shaped or U-shaped.
3. according to the combined powder moulding mold of the one described in claim 1, it is characterised in that the cross section of powder compacting product is rectangle, sector, trapezoidal or taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415131.6A CN104309158B (en) | 2014-08-22 | 2014-08-22 | A kind of combined powder moulding mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415131.6A CN104309158B (en) | 2014-08-22 | 2014-08-22 | A kind of combined powder moulding mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104309158A CN104309158A (en) | 2015-01-28 |
| CN104309158B true CN104309158B (en) | 2016-08-24 |
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ID=52364533
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410415131.6A Expired - Fee Related CN104309158B (en) | 2014-08-22 | 2014-08-22 | A kind of combined powder moulding mold |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2923293Y (en) * | 2006-06-20 | 2007-07-18 | 宁波科田磁业有限公司 | Formation mould for pressing magnetic material powder |
| CN201736460U (en) * | 2010-05-28 | 2011-02-09 | 马鞍山市辰兴机械制造有限公司 | Stamping die |
| CN201744656U (en) * | 2010-07-07 | 2011-02-16 | 张荣峰 | Die compacting apparatus of powder compacting and forming machine |
| CN201989218U (en) * | 2011-03-08 | 2011-09-28 | 天通控股股份有限公司 | Molding mold of flat ferrite magnetic core |
| CN103949642A (en) * | 2014-05-19 | 2014-07-30 | 上海交通大学 | Continuous pressing mould for annular magnet and pressing method of continuous pressing mould |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09155598A (en) * | 1995-12-06 | 1997-06-17 | Toyota Motor Corp | Powder compacting device |
| JP2006305621A (en) * | 2005-05-02 | 2006-11-09 | Bridgestone Corp | Pressing die and method for sheet metal processing |
-
2014
- 2014-08-22 CN CN201410415131.6A patent/CN104309158B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2923293Y (en) * | 2006-06-20 | 2007-07-18 | 宁波科田磁业有限公司 | Formation mould for pressing magnetic material powder |
| CN201736460U (en) * | 2010-05-28 | 2011-02-09 | 马鞍山市辰兴机械制造有限公司 | Stamping die |
| CN201744656U (en) * | 2010-07-07 | 2011-02-16 | 张荣峰 | Die compacting apparatus of powder compacting and forming machine |
| CN201989218U (en) * | 2011-03-08 | 2011-09-28 | 天通控股股份有限公司 | Molding mold of flat ferrite magnetic core |
| CN103949642A (en) * | 2014-05-19 | 2014-07-30 | 上海交通大学 | Continuous pressing mould for annular magnet and pressing method of continuous pressing mould |
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| CN104309158A (en) | 2015-01-28 |
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Granted publication date: 20160824 Termination date: 20200822 |
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| CF01 | Termination of patent right due to non-payment of annual fee |