CN102602025B - A kind of isobaric drawing method of powder shaping press and device - Google Patents
A kind of isobaric drawing method of powder shaping press and device Download PDFInfo
- Publication number
- CN102602025B CN102602025B CN201210069777.4A CN201210069777A CN102602025B CN 102602025 B CN102602025 B CN 102602025B CN 201210069777 A CN201210069777 A CN 201210069777A CN 102602025 B CN102602025 B CN 102602025B
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure head
- powder
- chamber
- working chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Press Drives And Press Lines (AREA)
Abstract
The present invention relates to a kind of isobaric drawing method and device of powder shaping press.This be utilize liquid conductive pressure and the principle that pressure is equal everywhere in liquid to balance the pressure differential of each pressure head, make the pressure of each working head equal.This device comprises screwed plug, integrated package, pressure head, check valve and pressing plate.It mainly solves and has more the unbalanced difficult problem of mould each die cavity press power, reaches downtrodden Workpiece shaping consistent in density, thus the raising of powder compacting compacting efficiency is achieved.
Description
Technical field
The present invention relates to powder compacting compact technique, particularly a kind of isobaric drawing method of powder shaping press and device.
Background technology
In order to improve the efficiency of powder compaction, generally the method that a mould has more is carried out in compacting as far as possible to less workpiece, namely arrange the Workpiece shaping cavity of more than two in a compacting tool set, like this, once suppress n(die cavity number) individual workpiece, efficiency just can improve n doubly.But the problem brought is the Density inhomogeneity being difficult to make each powder compacting stock, cannot reach quality requirement, meanwhile, a mould of raising the efficiency has more mode and cannot be implemented.
Summary of the invention
The object of the present invention is to provide a kind of isobaric drawing method and device of powder shaping press, mainly solve and have more the unbalanced difficult problem of mould each die cavity press power, reach downtrodden Workpiece shaping consistent in density, thus the raising of powder compacting compacting efficiency is achieved.
For achieving the above object, the present invention realizes like this.
An isobaric drawing method for powder shaping press, is characterized in that: it be utilize liquid conductive pressure and the principle that pressure is equal everywhere in liquid to balance the pressure differential of each pressure head, make the pressure of each working head equal.
For realizing a device for the isobaric drawing method of powder shaping press as above, it is characterized in that: it comprises screwed plug, integrated package, pressure head, check valve and pressing plate; Wherein: described integrated package upper lateral is through is provided with trapped fuel chamber, one end open place, trapped fuel chamber connects position opening on check valve, other end center deviation and connecting thread blocks up, described integrated package bottom longitudinally arranges some working chambers, in working chamber, load pressure head, pressure head can vertically move in working chamber; Described each working chamber is communicated with trapped fuel chamber by the oil guiding hole on its top; Be connected with the pressing plate can placed restrictions on pressure head and continue to move down bottom described integrated package, equalization is accomplished in the cross section of each working chamber and pressure head.
Described device, is characterized in that: described integrated package bottom becomes that biserial is uniform outputs circular work chamber upward.
Described device, is characterized in that: there is groove embedding sealing circle described pressure head top and the bottom, loads guide collar in intermediate channel.
Described device, is characterized in that: described pressing plate is fixed to bottom integrated package by screw.
Compared with the conventional method, the inventive method and device are a kind of isobaric drawing method and device of powder shaping press, apply in powder shaping press in the present invention, thoroughly solve a mould and have more the problem that Workpiece shaping in compacting is difficult to reach consistent in density.
Accompanying drawing explanation
Fig. 1 is the apparatus structure schematic diagram realizing the inventive method.
Fig. 2 is the lateral plan of Fig. 1.
Detailed description of the invention
The invention discloses a kind of isobaric drawing method of powder shaping press, it be utilize liquid conductive pressure and the principle that pressure is equal everywhere in liquid to balance the pressure differential of each pressure head, make the pressure of each working head equal.
Can adopt device compared with various structures for realizing foregoing invention method, existing composition graphs 1,2 illustrates wherein a kind of device realizing the inventive method.
As shown in the figure, it comprises screwed plug 1, integrated package 2, pressure head 3, check valve 6 and pressing plate 8; Wherein: described integrated package 2 upper lateral has provided trapped fuel chamber 21, one end open place, trapped fuel chamber 21 connects position opening on check valve 6, other end center deviation and connecting thread stifled 1, described integrated package 2 bottom longitudinally arranges some working chambers 22, in working chamber 22, load pressure head 3, pressure head 3 can vertically move in working chamber 22; Described each working chamber 22 is communicated with trapped fuel chamber 21 by the oil guiding hole 23 on its top; Be connected with the pressing plate 8 can placed restrictions on pressure head 3 and continue to move down bottom described integrated package 2, equalization is accomplished in the cross section of each working chamber and pressure head.Described each pressure head 3 is connected with formpiston.
When apparatus of the present invention use, open check valve 6 and pour into hydraulic oil to trapped fuel chamber 21, the hydraulic oil in trapped fuel chamber 21 applies pressure by the oil guiding hole 23 on working chamber 22 to each pressure head 3, forces it to move downward, until be subject to the stop of pressing plate 8; Due to the effect of hydraulic pressure transfer, and the cross section of each working chamber and pressure head is impartial, the pressure of pressure head is balanced to equal.So the pressure of pressed powder is impartial all the time in each die cavity, the stock density of powder compacting in each die cavity also just can be made to reach consistent.Then closing one-way valve 6, unscrews and stifled 1 discharges air tightening again after pressure release.
As a kind of preferred embodiment, described integrated package 2 bottom becomes that biserial is uniform outputs circular work chamber 22 upward, is conducive to like this forming more operating point.
As a kind of preferred embodiment, there is groove embedding sealing circle 4 described pressure head 3 top and the bottom, load guide collar 5 in intermediate channel.Pressure head 3 top and the bottom, because there being the effect of sealing ring 4, make hydraulic oil can not leak from working chamber; The guide collar 5 loaded in pressure head intermediate channel, controls pressure head and keeps moving both vertically up and down.
Load powder shaping press to be connected with upper actuating pressure device, pressure head 4 is connected with formpiston.When powder press works, pressure head 4 is subject to the passback elastic force that formpiston is suppressed powder, and pressure head starts to shrink in working chamber 22.Can not accomplish the same owing to adding powder amount in the film chamber of mould, during the compacting of each pressure head, the elastic force that is subject to also can be inconsistent, but after the elastic force of pressure head is sent to trapped fuel chamber, due to the effect of hydraulic pressure transfer, and the cross section of each working chamber and pressure head is impartial, makes the pressure of pressure head be balanced to equal.
As a kind of preferred embodiment, described pressing plate 8 is fixed to bottom integrated package 3 by screw 7.
As a kind of preferred embodiment, apparatus of the present invention have and are divided into 12 uniform pressure heads of two row, and this is a kind of preferred embodiment, utilizes this operation principle, and can be the pressure head of two or more (comprising two), position be not necessarily uniform.
In sum, be only preferred embodiment of the present invention, be not used for limiting practical range of the present invention, namely all equivalences done according to the content of the present patent application the scope of the claims change and modify, and all should be technology category of the present invention.
Claims (4)
1. an isobaric drawing method for powder shaping press, is characterized in that: it be utilize liquid conductive pressure and the principle that pressure is equal everywhere in liquid to balance the pressure differential of each pressure head, make the pressure of each working head equal; The device used in the method comprises screwed plug (1), integrated package (2), pressure head (3), check valve (6) and pressing plate (8); Wherein: described integrated package (2) upper lateral is through is provided with trapped fuel chamber (21), trapped fuel chamber (21) one end open place connects position opening on check valve (6), other end center deviation and connecting thread stifled (1), described integrated package (2) bottom longitudinally arranges some working chambers (22), in working chamber (22), load pressure head (3), pressure head (3) can vertically move in working chamber (22); Described each working chamber (22) is communicated with trapped fuel chamber (21) by the oil guiding hole (23) on its top; Described integrated package (2) bottom is connected with the pressing plate (8) that can limit pressure head (3) and continue to move down, and the cross section of each working chamber (22) and pressure head (3) is impartial;
During use, open check valve (6) and pour into hydraulic oil to trapped fuel chamber (21), hydraulic oil in trapped fuel chamber (21) applies pressure by the oil guiding hole (23) on working chamber (22) to each pressure head (3), forces it to move downward, until be subject to the stop of pressing plate (8); Due to the effect of hydraulic pressure transfer, and the cross section of each working chamber and pressure head is impartial, make the pressure of each pressure head (3) be balanced to equal, therefore the pressure of each working chamber (22) interior pressed powder is impartial all the time, and the stock density of powder compacting in each die cavity also just can be made to reach consistent; Then closing one-way valve (6), unscrew stifled (1) discharges air and tightens after pressure release again; Load powder shaping press to be connected with upper actuating pressure device, pressure head (3) is connected with formpiston, when powder press works, pressure head (3) is subject to the passback elastic force that formpiston is suppressed powder, pressure head starts to shrink in working chamber (22), can not accomplish the same owing to adding powder amount in the film chamber of mould, the elastic force be subject to during the compacting of each pressure head also can be inconsistent, but after the elastic force of pressure head is sent to trapped fuel chamber, due to the effect of hydraulic pressure transfer, and the cross section of each working chamber and pressure head is impartial, makes the pressure of pressure head (3) be balanced to equal.
2. method according to claim 1, is characterized in that: described integrated package (2) bottom becomes that biserial is uniform outputs circular work chamber (22) upward.
3. method according to claim 1 and 2, is characterized in that: in the groove that the upper part of the pressure head (3) described in sealing ring (4) embeds and lower part are arranged, in the groove of the middle part setting of the pressure head (3) described in guide collar (5) loads.
4. method according to claim 1 and 2, is characterized in that: described pressing plate (8) is fixed to integrated package (2) bottom by screw (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210069777.4A CN102602025B (en) | 2012-03-16 | 2012-03-16 | A kind of isobaric drawing method of powder shaping press and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210069777.4A CN102602025B (en) | 2012-03-16 | 2012-03-16 | A kind of isobaric drawing method of powder shaping press and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102602025A CN102602025A (en) | 2012-07-25 |
| CN102602025B true CN102602025B (en) | 2015-12-16 |
Family
ID=46519981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210069777.4A Active CN102602025B (en) | 2012-03-16 | 2012-03-16 | A kind of isobaric drawing method of powder shaping press and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102602025B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103802351B (en) * | 2014-03-03 | 2016-05-18 | 吉林大学 | Mo(u)ldenpress |
| CN104260400A (en) * | 2014-08-20 | 2015-01-07 | 济南大学 | Cold pressing device for powder |
| CN104923779B (en) * | 2015-07-07 | 2017-09-08 | 上海平野磁气有限公司 | One mould has more the isobaric floating compacting tool set of ring magnet embryo material and method |
| CN110901136B (en) * | 2019-11-28 | 2021-07-09 | 永州利达工贸实业有限公司 | Compression fittings is used in production of multi-use architecture template |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1257667B (en) * | 1992-07-29 | 1996-02-01 | Improved plug for uniform compaction of ceramic tiles | |
| EP1479511A2 (en) * | 2003-05-18 | 2004-11-24 | Dieffenbacher GmbH & Co. KG | Method of manufacturing compression moulded articles |
| CN2873480Y (en) * | 2005-12-02 | 2007-02-28 | 刘君 | Extruding forming machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITRE20010031U1 (en) * | 2001-09-07 | 2003-03-07 | Sacmi | ISOSTATIC PUNCH FOR MOLD FOR PRESSING POWDER PRODUCTS, IN PARTICULAR FOR CERAMIC TILES. |
-
2012
- 2012-03-16 CN CN201210069777.4A patent/CN102602025B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1257667B (en) * | 1992-07-29 | 1996-02-01 | Improved plug for uniform compaction of ceramic tiles | |
| EP1479511A2 (en) * | 2003-05-18 | 2004-11-24 | Dieffenbacher GmbH & Co. KG | Method of manufacturing compression moulded articles |
| CN2873480Y (en) * | 2005-12-02 | 2007-02-28 | 刘君 | Extruding forming machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102602025A (en) | 2012-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104923779B (en) | One mould has more the isobaric floating compacting tool set of ring magnet embryo material and method | |
| CN102602025B (en) | A kind of isobaric drawing method of powder shaping press and device | |
| CN204842971U (en) | Isobaric compacting tool set that floats of many loop type magnet blanks of a mould | |
| CN201525076U (en) | Artificial cement core preparing device | |
| CN203604729U (en) | Hydraulic machine material injection controllable one-way valve special for wet-type powder magnetic materials | |
| CN207222670U (en) | A kind of reducing abnormity pipe part expanding die | |
| CN2913752Y (en) | Piston type back pressure valve | |
| CN100587460C (en) | End face seal steel tube pressure-measuring method | |
| CN204109412U (en) | Preforming device | |
| CN204296075U (en) | Three-dimensional iron filings cuber | |
| CN203185466U (en) | Film laminating machine and multi-union film laminating machine | |
| CN204182880U (en) | A kind of two squeeze pin structures connected by push pedal | |
| CN203288407U (en) | Electric reactor body pressing device | |
| CN203991962U (en) | Essence impact machine intelligence locked mode resetting means | |
| CN105346136B (en) | Axial pressurization liquid plastic isostatic pressing die | |
| CN201456207U (en) | Pressurizing structure of ceramic isostatic mold core | |
| CN207655433U (en) | A kind of tooling of control antenna house head inner surface rubberization thickness uniformity | |
| CN203584955U (en) | Four-column twice-lifting cylinder | |
| CN206306523U (en) | A kind of seesaw type balancer | |
| CN101941305A (en) | Hydraulic system of 4800T press machine | |
| CN206765600U (en) | A kind of clamping device of the two-sided automatic word pressing machine of hexagonal material | |
| CN201671902U (en) | Control device of suspension arm hydraulic oil cylinder | |
| CN204372193U (en) | A kind of permanent ferrite magnetic tile combined type valve for sealing material | |
| CN205200247U (en) | Do not have around degree workstation | |
| CN205669050U (en) | A kind of uniform pressing system of many pressure heads |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |