CN106955986A - A kind of method that die casting decouples core pulling - Google Patents
A kind of method that die casting decouples core pulling Download PDFInfo
- Publication number
- CN106955986A CN106955986A CN201710100207.XA CN201710100207A CN106955986A CN 106955986 A CN106955986 A CN 106955986A CN 201710100207 A CN201710100207 A CN 201710100207A CN 106955986 A CN106955986 A CN 106955986A
- Authority
- CN
- China
- Prior art keywords
- core pulling
- sliding block
- die casting
- decouples
- pulling pin
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/001—Removing cores
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of method that die casting decouples core pulling, comprise the following steps：Injection machine die casting after mould matched moulds；Sliding block is kept fixing, and driving core pulling pin is extracted out from die cavity, is retracted to inside sliding block；Mould is molded；Drive slide retraction；Product rear-guard movable slider is taken out to reset with core pulling pin.By the way that first core pulling pin is drawn in sliding block, then extract sliding block out, there is smaller contact area compared to original pulled core structure and die casting liquid, the type power that rises being subject to is smaller, solve sliding block during core pulling because the type power that rises is excessive and stuck or retreats the problems such as.The present invention is applied to mould applications.
Description
Technical field
The present invention relates to mould applications, the method that more particularly to a kind of die casting decouples core pulling.
Background technology
In die casting manufacturing, it is necessary to intert between dynamic model and cover half multiple the characteristics of due to some products
Core pulling pin, the type position of core pulling, which is run through under dynamic model portion and cover half part, this state, needs first core pulling to mold again, traditional wedging by fixed die
Block rigid locking structure can not be used, it is difficult to when solving Die Casting, the excessive situation for causing sliding block unstable of the type that rises power.It is existing
Technology mostly uses core-pulling mechanism as shown in Figure 1, and multiple core pulling pins 5 are fixed together with sliding block 6, sliding block 6 and core pulling
Pin 5 is driven using an oil cylinder 7, needs to extract sliding block 6 and core pulling pin 5 out simultaneously during core pulling, such case sliding block will be born more
The big type power that rises, easily causes the problems such as stuck sliding block or retrogressing.
The content of the invention
, can it is an object of the invention to provide a kind of method that die casting decouples core pulling in order to solve the above problems
Solve sliding block during core pulling because the type power that rises is excessive and stuck or retreat the problems such as.
The technical solution adopted in the present invention is：A kind of method that die casting decouples core pulling, comprises the following steps：
A. injection machine die casting after mould matched moulds；
B. sliding block is kept fixing, and driving core pulling pin is extracted out from die cavity, is retracted to inside sliding block；
C. mould is molded；
D. slide retraction is driven；
E. product rear-guard movable slider is taken out to reset with core pulling pin.
As the further improvement of such scheme, in step b, core pulling is reduced by the slide guide department set in sliding block and is directed to sliding block
Attrition.
As the further improvement of such scheme, in step b, core pulling pin is driven jointly by two oil cylinders.
As the further improvement of such scheme, in step d, by different from the hydraulic oil cylinder driving sliding block in step b.
As the further improvement of such scheme, two oil cylinders in step b and the oil cylinder in step d are in isosceles triangle
Two oil cylinders in distribution, step b are the base of triangle.
The beneficial effects of the invention are as follows：The present invention then extracts sliding block out, compared by the way that first core pulling pin is drawn in sliding block
There is smaller contact area in original pulled core structure and die casting liquid, the type power that rises being subject to is smaller, solves sliding block in core pulling
During because the type power that rises is excessive and stuck or retreat the problems such as.
Brief description of the drawings
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is prior art core-pulling mechanism structure chart；
Fig. 2 is core-pulling mechanism structure chart of the present invention；
Fig. 3 is core pulling front cross sectional view of the present invention；
Fig. 4 is sectional view after core pulling of the present invention.
Embodiment
The method that die casting as in Figure 2-4 decouples core pulling, the mould of use include the cover half 41 that is mutually arranged with
Distribution is fixed with some cover half mold inserts and insert in dynamic model 42, cover half 41 and dynamic model 42, and core pulling pin 2 is all through sliding block
Cover half mold insert and insert are continued across after 1.
With reference to Fig. 2, the oil cylinder that core-pulling mechanism is included in sliding block 1, core pulling pin 2 and some driving oil cylinders, the present embodiment is equal
Using hydraulic jack, core pulling pin 2 is from sliding block 1 respectively by different hydraulic oil cylinder drivings, and core pulling pin 2 has left and right respectively with sliding block 1
Mobile stroke, the moving direction of core pulling pin 2 and its diameter parallel, core pulling pin 2 is slided with sliding block 1 to be connected.
The job step of the present embodiment is：A. injection machine die casting after mould matched moulds；B. sliding block 1 keeps fixing, hydraulic oil cylinder driving
Core pulling pin 2 is extracted out from die cavity, is retracted to inside sliding block 1；C. mould is molded；D. hydraulic oil cylinder driving sliding block 1 is retracted；E. take out after product
Driving sliding block 1 resets with core pulling pin 2.
With reference to Fig. 3-4, first core pulling pin 2 is drawn in sliding block 1, sliding block 1 is then extracted out, compared to original pulled core structure
There is smaller contact area with die casting liquid, the type power that rises being subject to is smaller, solves sliding block 1 during core pulling because of the type power mistake that rises
The problems such as big and stuck or retrogressing.
It is preferred that, sliding block 1 includes slider body and covers 11 with slide guide department, and slider body is provided with what is be provided with through hole, through hole
Slide guide department set 11, slide guide department set 11 is provided with slide guide hole, and the wall of slide guide hole is fitted with the side walls of core pulling pin 2.Walked
During rapid b, in order to prevent core pulling pin 2 to the attrition of sliding block 1, the slide guide department set 11 set up inside slider body can be right
Guiding is played a part of in the slip of core pulling pin 2, has also been avoided that core pulling pin 2 is contacted with the direct of slider body, has effectively prevented
The abrasion of sliding block 1.Slide guide department set 11, to be removably fixedly connected, weares and teares excessively serious with slider body when slide guide department covers 11
When, staff need to only change slide guide department set 11, greatly reduce cost of manufacture.
With reference to Fig. 2, there are many core pulling pins in the present embodiment, each core pulling pin is all fixed through continuing across after sliding block 1
Mould mold insert and insert, each core pulling pin are parallel to each other.
It is preferred that, when carrying out step b, core pulling pin 2 is driven simultaneously using two oil cylinders 31,32, due to being taken out with many
Core needle 2, two oil cylinders 31,32 synchronous operations so that core pulling pin 2 can have bigger driving force, it is ensured that the stabilization of core pulling pin 2
Extract out.
It is preferred that, when carrying out step d, sliding block 1 is driven using different from the oil cylinder 33 in step b, because sliding block 1 is extracted out
When the suffered type power that rises is long-range power suffered when being extracted out with core pulling pin 2, therefore oil cylinder can not be shared with core pulling pin 2, it is necessary to using
More powerful oil cylinder 33.
It is preferred that, the oil cylinder 33 in two oil cylinders 31,32 and step d in step b is distributed in isosceles triangle, step b
In two oil cylinders 31,32 be triangle base, such distribution enables to three oil cylinders will not to go out in the process of running
The problems such as now disturbing, each oil cylinder made can normally be run, while also reducing installation volume.
Certainly, the invention is not limited in above-mentioned embodiment, those of ordinary skill in the art are without prejudice to the present invention
Equivalent variations or replacement can be also made on the premise of spirit, these equivalent modifications or replacement are all contained in the application claim
In limited range.
Claims (5)
1. a kind of method that die casting decouples core pulling, it is characterised in that comprise the following steps：
A. injection machine die casting after mould matched moulds；
B. sliding block is kept fixing, and driving core pulling pin is extracted out from die cavity, is retracted to inside sliding block；
C. mould is molded；
D. slide retraction is driven；
E. product rear-guard movable slider is taken out to reset with core pulling pin.
2. the method that die casting decouples core pulling according to claim 1, it is characterised in that：In step b, by sliding block
Slide guide department set reduces the attrition that core pulling is directed to sliding block.
3. the method that die casting decouples core pulling according to claim 2, it is characterised in that：In step b, pass through two oil cylinders
Common driving core pulling pin.
4. the method that die casting decouples core pulling according to claim 3, it is characterised in that：In step d, by different from step
Hydraulic oil cylinder driving sliding block in rapid b.
5. the method that die casting decouples core pulling according to claim 4, it is characterised in that：Two oil cylinders in step b with
Oil cylinder in step d is distributed in isosceles triangle, and two oil cylinders in step b are the base of triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710100207.XA CN106955986A (en) | 2017-02-23 | 2017-02-23 | A kind of method that die casting decouples core pulling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710100207.XA CN106955986A (en) | 2017-02-23 | 2017-02-23 | A kind of method that die casting decouples core pulling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106955986A true CN106955986A (en) | 2017-07-18 |
Family
ID=59481167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710100207.XA Pending CN106955986A (en) | 2017-02-23 | 2017-02-23 | A kind of method that die casting decouples core pulling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106955986A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107552756A (en) * | 2017-09-13 | 2018-01-09 | 苏州广型模具有限公司 | Reduce the pulled core structure of die size |
| CN107570678A (en) * | 2017-08-29 | 2018-01-12 | 宁波吉烨汽配模具有限公司 | The slide block device that pin is first extracted out during a kind of die sinking |
| CN108436056A (en) * | 2018-03-22 | 2018-08-24 | 重庆市搏润模具有限公司 | A kind of compression mod of achievable long range core pulling |
| CN109014120A (en) * | 2018-08-27 | 2018-12-18 | 苏州广型模具有限公司 | A kind of pre- pulled core structure of sliding block |
| CN109014123A (en) * | 2018-08-27 | 2018-12-18 | 苏州广型模具有限公司 | A kind of sliding block sticks up mode structure |
| CN111250674A (en) * | 2020-03-12 | 2020-06-09 | 上海海帕压铸件有限公司 | Die-casting die structure capable of achieving high parallelism and die-casting method |
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|---|---|---|---|---|
| JPH0259141A (en) * | 1988-08-23 | 1990-02-28 | Honda Motor Co Ltd | Method and apparatus of casting |
| JPH07314115A (en) * | 1994-05-30 | 1995-12-05 | Honda Motor Co Ltd | Die for casting |
| JPH105967A (en) * | 1996-06-28 | 1998-01-13 | Ahresty Corp | Die device |
| JP2002144010A (en) * | 2000-11-13 | 2002-05-21 | Ahresty Corp | Die for die casting |
| CN201380279Y (en) * | 2009-03-31 | 2010-01-13 | 宁波辉旺机械有限公司 | Core-loosing sliding block device with dual oil cylinders |
| CN201728334U (en) * | 2010-03-01 | 2011-02-02 | 戴建成 | Die core pulling device |
| CN102765169A (en) * | 2012-07-25 | 2012-11-07 | 宁波宇升模业有限公司 | Horizontal-linkage secondary core pulling mechanism |
| CN203679227U (en) * | 2013-12-31 | 2014-07-02 | 广州市型腔模具制造有限公司 | Core pulling mechanism of stacking oil cylinder |
| CN205289707U (en) * | 2015-12-15 | 2016-06-08 | 天津德盛镁汽车部件有限公司 | Mould shaping is with extrudeing device of loosing core |
-
2017
- 2017-02-23 CN CN201710100207.XA patent/CN106955986A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0259141A (en) * | 1988-08-23 | 1990-02-28 | Honda Motor Co Ltd | Method and apparatus of casting |
| JPH07314115A (en) * | 1994-05-30 | 1995-12-05 | Honda Motor Co Ltd | Die for casting |
| JPH105967A (en) * | 1996-06-28 | 1998-01-13 | Ahresty Corp | Die device |
| JP2002144010A (en) * | 2000-11-13 | 2002-05-21 | Ahresty Corp | Die for die casting |
| CN201380279Y (en) * | 2009-03-31 | 2010-01-13 | 宁波辉旺机械有限公司 | Core-loosing sliding block device with dual oil cylinders |
| CN201728334U (en) * | 2010-03-01 | 2011-02-02 | 戴建成 | Die core pulling device |
| CN102765169A (en) * | 2012-07-25 | 2012-11-07 | 宁波宇升模业有限公司 | Horizontal-linkage secondary core pulling mechanism |
| CN203679227U (en) * | 2013-12-31 | 2014-07-02 | 广州市型腔模具制造有限公司 | Core pulling mechanism of stacking oil cylinder |
| CN205289707U (en) * | 2015-12-15 | 2016-06-08 | 天津德盛镁汽车部件有限公司 | Mould shaping is with extrudeing device of loosing core |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570678A (en) * | 2017-08-29 | 2018-01-12 | 宁波吉烨汽配模具有限公司 | The slide block device that pin is first extracted out during a kind of die sinking |
| CN107570678B (en) * | 2017-08-29 | 2023-08-15 | 宁波吉烨汽配模具有限公司 | Sliding block device with pins firstly pulled out during die opening |
| CN107552756A (en) * | 2017-09-13 | 2018-01-09 | 苏州广型模具有限公司 | Reduce the pulled core structure of die size |
| CN108436056A (en) * | 2018-03-22 | 2018-08-24 | 重庆市搏润模具有限公司 | A kind of compression mod of achievable long range core pulling |
| CN109014120A (en) * | 2018-08-27 | 2018-12-18 | 苏州广型模具有限公司 | A kind of pre- pulled core structure of sliding block |
| CN109014123A (en) * | 2018-08-27 | 2018-12-18 | 苏州广型模具有限公司 | A kind of sliding block sticks up mode structure |
| CN111250674A (en) * | 2020-03-12 | 2020-06-09 | 上海海帕压铸件有限公司 | Die-casting die structure capable of achieving high parallelism and die-casting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170718 |