CN102328400A - Structure for adjusting flow balance in mould - Google Patents
Structure for adjusting flow balance in mould Download PDFInfo
- Publication number
- CN102328400A CN102328400A CN201110298733A CN201110298733A CN102328400A CN 102328400 A CN102328400 A CN 102328400A CN 201110298733 A CN201110298733 A CN 201110298733A CN 201110298733 A CN201110298733 A CN 201110298733A CN 102328400 A CN102328400 A CN 102328400A
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- Prior art keywords
- runner
- flow channel
- die
- mould
- control valve
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Abstract
The invention provides a structure for adjusting flow balance in a mould. The structure ensures that the filling imbalance of a product is avoided and the appearance and size of the product are not influenced in the case of relatively great weight difference between two products in the same mould; and moreover, the structure is simple, and the mould cost and injection moulding cost are not increased. The structure comprises a front mould core, a rear mould core, a sprue bush and a flow channel, wherein the front mould core and the rear mould core are closed to form two cavities; the weight difference of the products in the two cavities is relatively great; the sprue brush is communicated with the flow channel; and the two sides of the flow channel are correspondingly communicated with the cavities respectively. The structure is characterized in that: a flow channel regulation valve is arranged in the flow channel communicated with the cavity with light products; the upper part of the flow channel regulation valve protrudes out of the flow channel; the bottom end of the flow channel regulation valve is in threaded connection with a threaded hole in the rear mould core; and the outer circular surface of the upper part of the flow channel regulation valve is closely attached to the inner circular surface of the upper part of the threaded hole.
Description
Technical field
The present invention relates to the technical field of structures of injection mould mould, be specially the structure of regulating flow equilibrium in the mould.
Background technology
In order to practice thrift die cost, we can be the identical product design of two materials in same set of mould sometimes, if but the weight differential of two products the unbalanced phenomenon of product filling will occur when big, and bigger to the outward appearance and the size impact of product.Conventional solution is the balance injection moulding that reaches filling time of adopting the needle valve TOP-TIP to control the different product die cavity mould; But it is a lot of that die cost is increased. and can increase the gross thickness of mould; Make the tonnage of injection machine also want corresponding increasing, will increase the injection moulding cost.
Summary of the invention
To the problems referred to above; The invention provides the structure of regulating flow equilibrium in the mould; It guarantees that the unbalanced phenomenon of product filling, the outward appearance that does not influence product and size can not appear in the weight differential of two products in the same set of mould when big; It is simple in structure in addition, and the cost of mould, injection moulding cost can not increase.
Regulate the structure of flow equilibrium in the mould; Its technical scheme is such: it comprises preceding die, back die, sprue bush, runner; Form two die cavities behind die, the back die matched moulds before said; The weight differential of the product in two die cavities is bigger, and said sprue bush is communicated with said runner, and the both sides of said runner are corresponding respectively to be communicated with said die cavity; It is characterized in that: lead in the runner of the light die cavity of product weight and be provided with the runner control valve; Said runner control valve top evagination is in said runner, and the bottom of said runner control valve is threaded and is positioned at the inner screwed hole of said back die, and the top periphery of said runner control valve fits tightly the top inner headed face of said screwed hole.
It is further characterized in that: the upper surface of said runner control valve has inner hexagonal hole.
After adopting said structure of the present invention; Owing to being provided with the runner control valve in the runner that leads to the light die cavity of product weight; Said runner control valve top evagination is in the adjustable height of said runner, and the bottom of said runner control valve is threaded and is positioned at the inner screwed hole of said back die, controls the cross section size of runner through the height and position of adjustment runner control valve; Realize the purpose of adjustment mold flow balance; It guarantees that the weight differential of two products in the same set of mould the unbalanced phenomenon of product filling, the outward appearance that does not influence product and size can not occur when big, and it is simple in structure in addition, and the cost of mould, injection moulding cost can not increase.
Description of drawings
Fig. 1 is a front view structural representation of the present invention;
Fig. 2 is the local structure for amplifying sketch map at A place among Fig. 1.
The specific embodiment
See Fig. 1, Fig. 2, it comprises preceding die 1, back die 2, sprue bush 3, runner 4, forms two die cavities 5,6 behind preceding die 1, back die 2 matched moulds; The weight differential of the product in two die cavities is bigger; Product weight in the die cavity 6 is greater than the product weight in the die cavity 5, and sprue bush 3 is communicated with runner 4, and the both sides of runner 4 are communicated with die cavity 5, die cavity 6 respectively; Lead in the runner 4 of the light die cavity of product weight 5 and be provided with runner control valve 7; Runner control valve 7 top evaginations are in runner 4, and the bottom of runner control valve 7 is threaded and is positioned at the screwed hole 8 of die 2 inside, back, and the top periphery 9 of runner control valve 7 fits tightly the top inner headed face 10 of screwed hole 8.The upper surface of runner control valve 7 has inner hexagonal hole 11.
Its operation principle is following: the weight ratio of the product of die cavity 5, die cavity 6 can know, under the die opening state, the height and position that inserts inner hexagonal hole 11 adjustment runner control valves 7 with spanner is controlled the cross section size of runner 4, matched moulds afterwards, normal injection moulding.
Claims (2)
1. the structure of flow equilibrium in the adjusting mould; It comprises preceding die, back die, sprue bush, runner, forms two die cavities behind the die, back die matched moulds before said, and the weight differential of the product in two die cavities is bigger; Said sprue bush is communicated with said runner; The both sides of said runner are corresponding respectively to be communicated with said die cavity, it is characterized in that: lead in the runner of the light die cavity of product weight and be provided with the runner control valve, said runner control valve top evagination is in said runner; The bottom of said runner control valve is threaded and is positioned at the inner screwed hole of said back die, and the top periphery of said runner control valve fits tightly the top inner headed face of said screwed hole.
2. the structure of flow equilibrium in the adjusting mould according to claim 1, it is characterized in that: the upper surface of said runner control valve has inner hexagonal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110298733A CN102328400A (en) | 2011-09-28 | 2011-09-28 | Structure for adjusting flow balance in mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110298733A CN102328400A (en) | 2011-09-28 | 2011-09-28 | Structure for adjusting flow balance in mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102328400A true CN102328400A (en) | 2012-01-25 |
Family
ID=45480493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110298733A Pending CN102328400A (en) | 2011-09-28 | 2011-09-28 | Structure for adjusting flow balance in mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102328400A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097298A (en) * | 2014-07-21 | 2014-10-15 | 常熟市金马模具有限公司 | Submarine pouring gate for injection mould |
| CN108357069A (en) * | 2018-01-24 | 2018-08-03 | 华讯方舟科技有限公司 | Cavity injection mold melt flows balance check method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04126214A (en) * | 1990-09-17 | 1992-04-27 | Fuji Photo Film Co Ltd | Mold |
| JPH0999456A (en) * | 1995-10-06 | 1997-04-15 | Sony Corp | Injection molding machine |
| US5849236A (en) * | 1996-05-10 | 1998-12-15 | Siegel-Robert, Inc. | Method and apparatus for plastic injection molding flow control |
| CN201275849Y (en) * | 2008-08-29 | 2009-07-22 | 上海晨兴电子科技有限公司 | Light conducting board mold with adjusting device |
| CN202225393U (en) * | 2011-09-28 | 2012-05-23 | 凡嘉科技（无锡）有限公司 | Structure for adjusting flow balance in mold |
-
2011
- 2011-09-28 CN CN201110298733A patent/CN102328400A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04126214A (en) * | 1990-09-17 | 1992-04-27 | Fuji Photo Film Co Ltd | Mold |
| JPH0999456A (en) * | 1995-10-06 | 1997-04-15 | Sony Corp | Injection molding machine |
| US5849236A (en) * | 1996-05-10 | 1998-12-15 | Siegel-Robert, Inc. | Method and apparatus for plastic injection molding flow control |
| CN201275849Y (en) * | 2008-08-29 | 2009-07-22 | 上海晨兴电子科技有限公司 | Light conducting board mold with adjusting device |
| CN202225393U (en) * | 2011-09-28 | 2012-05-23 | 凡嘉科技（无锡）有限公司 | Structure for adjusting flow balance in mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097298A (en) * | 2014-07-21 | 2014-10-15 | 常熟市金马模具有限公司 | Submarine pouring gate for injection mould |
| CN108357069A (en) * | 2018-01-24 | 2018-08-03 | 华讯方舟科技有限公司 | Cavity injection mold melt flows balance check method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20120125 |