CN102328049A - Pressurization piston of die casting machine - Google Patents
Pressurization piston of die casting machine Download PDFInfo
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- CN102328049A CN102328049A CN201110218204A CN201110218204A CN102328049A CN 102328049 A CN102328049 A CN 102328049A CN 201110218204 A CN201110218204 A CN 201110218204A CN 201110218204 A CN201110218204 A CN 201110218204A CN 102328049 A CN102328049 A CN 102328049A
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- piston
- spool
- die casting
- valve
- casting machine
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Abstract
The invention relates to a pressurization piston of a die casting machine. The piston and a piston rod part are in an integral structure, a cavity of a rod part at the left end of the piston is provided with a valve core, the right end of the valve core is provided with an oil feeding valve opening and the lower end of the valve core is provided with an oil discharging valve opening; one end of the valve core is sleeved with a valve sleeve and an elastic member is arranged between the valve sleeve and the valve core; the elastic member is an offsetting spring and the right end of the piston is provided with a cylindrical guide rod; a valve surface which corresponds to the valve core is arranged at an intersection part between an inner hole of the cylindrical guide rod and the cavity of the rod part at the left end of the piston; and the outer circle of the guide rod is provided with a sealing ring groove. According to the invention, by utilizing the valve core which has a smaller mass and has small inertia and an extremely-high response speed, high response of a control mechanism can be realized; and the pressurization piston is suitable for efficient and accurate die casting and molding. The pressurization piston provided by the invention has the advantages of compact structure and small size, low manufacturing cost, easiness in debugging, high control precision, low energy consumption, and capability of injecting at a high speed.
Description
Technical field
The present invention relates to field of die casting machines, relate in particular to a kind of die casting machine charged piston.
Background technology
The common all size and the die casting machine of structure, booster body adopts floating piston and piston rod construction, cooperates through floating piston and piston rod and realizes the supercharging action; The floating piston volume that the die casting machine of these structures adopts is big; Inertia is big, and response speed is slow, and fault rate is high; After the long-term use of fastening structure, problems such as phenomenon, poor sealing occur getting loose.This control procedure can receive the influence of changing factor such as load, and its energy consumption is also higher, response speed slow, poor stability.Its control accuracy and repeatable accuracy can only satisfy the control requirement of conventional products, lack the popularity of processing, are necessary to further improve.
Summary of the invention
The technical problem that the present invention will solve is: provide that a kind of compact conformation volume is little, installation and maintenance are convenient, high, the lower-cost die casting machine charged piston of precision.
In order to overcome the defective that exists in the background technology; The technical solution adopted for the present invention to solve the technical problems is: a kind of die casting machine charged piston, and said piston and piston rod position are overall structure, are provided with spool in the die cavity of said piston left end bar portion; Said spool one end is with valve pocket; Be provided with elastic component between said valve pocket and the spool, the piston right-hand member is the tubular guide post, and said guide post endoporus is provided with the valve face corresponding with spool with the die cavity intersection of piston left end bar portion.
According to a preferred embodiment of the present invention; A kind of die casting machine charged piston comprises that further said spool is a T shape part; The end that diameter is little is provided with deep hole, and said elastic component places deep hole, and the end that the small end of said spool and elastic component and valve pocket are provided with deep hole is slidingly matched.
According to a preferred embodiment of the present invention, a kind of die casting machine charged piston comprises that further said elastic component is a back-moving spring.
According to a preferred embodiment of the present invention, a kind of die casting machine charged piston comprises that further said spool right-hand member is the oil-feed valve port, and the spool lower end is fuel-displaced valve port.
According to a preferred embodiment of the present invention, a kind of die casting machine charged piston comprises that further the cylindrical of said guide post is provided with closure gasket groove.
The invention solves the defective that exists in the background technology, adopt the spool of less quality, inertia is little, and high response speed can realize the height response of controlling organization, is fit to efficient and microdiecast moulding.This design has guaranteed spool action good reproducibility, and the structure failure rate is extremely low; Back-moving spring has high fatigue life through a large amount of tests, resets accurately fast; Spool and valve pocket mating face seal performance are good, good stability, and reliability is high; The monoblock type charged piston has solved the oil leakage phenomenon between split combination sealing face, the seal, has improved the reliability of die casting machine work; Its compact conformation volume is little, low cost of manufacture, but debugging is easy, control accuracy is high, the low high speed injection of energy consumption.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the structural representation of the preferred embodiments of the present invention;
Wherein: 1, piston, 2, die cavity, 3, spool, 4, valve pocket, 5, elastic component, 6, guide post, 7, valve face, 8, the oil-feed valve port, 9, fuel-displaced valve port, 10, closure gasket groove.
The specific embodiment
Combine accompanying drawing and preferred embodiment that the present invention is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
A kind of die casting machine charged piston as shown in Figure 1, said piston 1 is an overall structure with piston rod portion, is provided with spool 3 in the die cavity 2 of said piston 1 left end bar portion; Said spool 3 right-hand members are oil-feed valve port 8; The spool lower end is fuel-displaced valve port 9, and spool 3 one ends are with valve pocket 4, is provided with elastic component 5 between said valve pocket 4 and the spool 3; Said elastic component 5 is a back-moving spring; Piston 1 right-hand member is a tubular guide post 6, and said guide post 6 endoporus and die cavity 2 intersections of piston 1 left end bar portion are provided with the valve face 7 corresponding with spool 3, and the cylindrical of said guide post 6 is provided with closure gasket groove 10.
Said spool 3 is a T shape part, and the end that diameter is little is provided with deep hole, and said elastic component 5 places deep hole, and the small end of said spool 3 and elastic component 5 are slidingly matched with the end that valve pocket 4 is provided with deep hole, and the mating surface of spool 3 and valve pocket 4 is through heat treatment process.
During the die casting machine fast shot, injection speed can reach 8 meter per seconds, at this moment spool 3 high speed openings; Spool 3 bears higher dynamic impulsion load, and speed can reach more than 30 meter per seconds, when supercharging is moved; Require spool 3 oppositely to close rapidly, guarantee to build the pressure time to accomplish in 15 milliseconds again.
This die casting machine charged piston changes piston 1, piston rod portion and guide post 6 multicompartment fabricated constructions into monoblock type is improved the charged piston structure, has made things convenient for assembling and maintenance.The monoblock type charged piston has solved the phenomenon of leakage of oil between split combination sealing face, the seal, has improved the functional reliability of die casting machine, has simplified manufacturing process simultaneously, reduces cost.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (5)
1. die casting machine charged piston; It is characterized in that: said piston (1) is an overall structure with piston rod portion; Be provided with spool (3) in the die cavity (2) of said piston (1) left end bar portion; Said spool (3) one ends are with valve pocket (4); Be provided with elastic component (5) between said valve pocket (4) and the spool (3), piston (1) right-hand member is tubular guide post (6), and said guide post (6) endoporus is provided with the valve face (7) corresponding with spool (3) with die cavity (2) intersection of piston (1) left end bar portion.
2. a kind of die casting machine charged piston as claimed in claim 1; It is characterized in that: said spool (3) is a T shape part; The end that diameter is little is provided with deep hole; Said elastic component (5) places deep hole, and the small end of said spool (3) and elastic component (5) are slidingly matched with the end that valve pocket (4) is provided with deep hole.
3. a kind of die casting machine charged piston as claimed in claim 1 is characterized in that: said elastic component (5) is a back-moving spring.
4. a kind of die casting machine charged piston as claimed in claim 1 is characterized in that: said spool (3) right-hand member is oil-feed valve port (8), and the spool lower end is fuel-displaced valve port (9).
5. a kind of die casting machine charged piston as claimed in claim 1 is characterized in that: the cylindrical of said guide post (6) is provided with closure gasket groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110218204A CN102328049A (en) | 2011-08-01 | 2011-08-01 | Pressurization piston of die casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110218204A CN102328049A (en) | 2011-08-01 | 2011-08-01 | Pressurization piston of die casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102328049A true CN102328049A (en) | 2012-01-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110218204A Pending CN102328049A (en) | 2011-08-01 | 2011-08-01 | Pressurization piston of die casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102328049A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433455A (en) * | 2013-08-26 | 2013-12-11 | 广东伊之密精密机械股份有限公司 | Circulating pressure supplement type cartridge valve |
| CN106061653A (en) * | 2013-10-18 | 2016-10-26 | 埃克斯科科技有限公司 | Wear ring for die-casting piston, die-casting piston incorporating same, and method of forming same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201410557Y (en) * | 2009-05-15 | 2010-02-24 | 中国兵器工业第五二研究所 | Squeeze casting mold capable of being supercharged locally |
| CN201596757U (en) * | 2010-02-09 | 2010-10-06 | 广东伊之密精密机械有限公司 | Pressurization control mechanism of die casting machine |
| CN201735760U (en) * | 2010-07-29 | 2011-02-09 | 东莞市益格机电有限公司 | Integral type pressurization piston of pressure injection mechanism of die-casting machine |
| CN202079814U (en) * | 2011-05-04 | 2011-12-21 | 许昌意斯特精机有限公司 | Die casting machine locking and supercharging device |
-
2011
- 2011-08-01 CN CN201110218204A patent/CN102328049A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201410557Y (en) * | 2009-05-15 | 2010-02-24 | 中国兵器工业第五二研究所 | Squeeze casting mold capable of being supercharged locally |
| CN201596757U (en) * | 2010-02-09 | 2010-10-06 | 广东伊之密精密机械有限公司 | Pressurization control mechanism of die casting machine |
| CN201735760U (en) * | 2010-07-29 | 2011-02-09 | 东莞市益格机电有限公司 | Integral type pressurization piston of pressure injection mechanism of die-casting machine |
| CN202079814U (en) * | 2011-05-04 | 2011-12-21 | 许昌意斯特精机有限公司 | Die casting machine locking and supercharging device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433455A (en) * | 2013-08-26 | 2013-12-11 | 广东伊之密精密机械股份有限公司 | Circulating pressure supplement type cartridge valve |
| CN103433455B (en) * | 2013-08-26 | 2015-08-05 | 广东伊之密精密机械股份有限公司 | Circulation pressure supplement type cartridge valve |
| CN106061653A (en) * | 2013-10-18 | 2016-10-26 | 埃克斯科科技有限公司 | Wear ring for die-casting piston, die-casting piston incorporating same, and method of forming same |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120125 |