CN203726732U - Injection mold reverse runner with balanced flow - Google Patents
Injection mold reverse runner with balanced flow Download PDFInfo
- Publication number
- CN203726732U CN203726732U CN201320871711.7U CN201320871711U CN203726732U CN 203726732 U CN203726732 U CN 203726732U CN 201320871711 U CN201320871711 U CN 201320871711U CN 203726732 U CN203726732 U CN 203726732U
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- Prior art keywords
- runner
- communicated
- branch
- bifurcated
- main
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- Expired - Lifetime
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- 238000002347 injection Methods 0.000 title claims abstract description 13
- 239000007924 injection Substances 0.000 title claims abstract description 13
- 230000007704 transition Effects 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 abstract description 15
- 239000004033 plastic Substances 0.000 abstract description 15
- 238000001746 injection moulding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses an injection mold reverse runner with balanced flow, which comprises a main runner, a plurality of branch runners and a sprue, wherein the main runner is communicated with the plurality of branch runners, and the sprue is arranged between the plurality of branch runners and a cavity. Each branch runner consists of a main branch runner and a staggered runner which is arranged in the middle of the main branch runner so as to divide the main branch runner into a main branch inlet runner and a main branch outlet runner, wherein one end of the staggered runner is communicated with the lower half section of the cross section of the main branch inlet runner, and the other end of the staggered runner is communicated with the upper half section of the cross section of the main branch outlet runner. Each branch runner consists of the main branch runner and the staggered runner, the orientation of each staggered runner is changed to some extent through a rotating melt layer, so that all hotter and colder melt layers can be evenly distributed on each branch runner, and the flowing of the molten plastic is more balanced in the branch runners, and the molten plastics are filled in mold cavities in a more balanced manner, and high-quality products can be produced.
Description
Technical field
The utility model relates to a kind of injection mold, particularly relates to a kind of injection mold upset runner of flow equalization.
Background technology
Along with high efficiency and the precise treatment moulding development of plastic products injection mo(u)lding, the application of multi-point mould is very general, for ensureing the quality index such as weight, the performance uniformity of each chamber goods, must make running gate system flow equilibrium, although but the runner of finding in practice die cavity is at full symmetric geometrically, the mobile not Equilibrium filling in every chamber.The imbalance of flow problem of multi-cavity mold and how much balanced runner systems, the reason of its imbalance of flow is when penetrating filling, due to the asymmetric shearing Distribution Phenomena that molten plastic produces in runner.Therefore the difference that comprises pressure, molten plastic temperature and products formed engineering properties between each die cavity will be produced.As shown in Figure 1, the running gate system of the injection mold of commonly using is mainly made up of sprue 1 ', runner 2 ' and cast gate 3 ', sprue 1 ', runner 2 ' and cast gate 3 ' are connected in turn, runner 2 ' is tubular structure, when this running gate system injection moulding of commonly using, can be because plastics are sheared inhomogeneous that the imbalance of flow effect causing causes that molten plastic fills in die cavity, even cause the distortion of plastic product/burn.
Utility model content
The purpose of this utility model is to provide a kind of injection mold upset runner of flow equalization, and the plastic product quality of its production is high.
For achieving the above object, technical solution of the present utility model is:
The utility model is a kind of injection mold upset runner of flow equalization, and it comprises sprue, multiple runner, cast gate; Described sprue is communicated with multiple runners, between multiple runners and die cavity, is provided with cast gate; Described runner comprises main runner and dislocation runner, this dislocation runner is arranged on the middle part of main runner, main runner is divided into and leads runner and lead two sections of runners, one end of dislocation runner is communicated with the lower semisection that master enters runner cross section, and the other end of dislocation runner is communicated with the upper semisection that master goes out runner cross section.
Described dislocation runner comprises two bifurcated runners, a transition runner; One end of two described bifurcated runners is communicated with the lower semisection that master enters runner cross section, and the other end of two bifurcated runners is connected to the two ends of transition runner, and the middle part of transition runner is communicated with the upper semisection that master goes out runner cross section.
Described dislocation runner comprises that two are entered bifurcated runner and two and go out bifurcated runner; Two described one end of entering bifurcated runner are communicated with the lower semisection that master enters runner cross section, article two, the other end that enters bifurcated runner is communicated with two one end that go out bifurcated runner respectively, and two other ends that go out bifurcated runner are communicated with the upper semisection that master goes out runner cross section.
Adopt after such scheme, because the utility model runner comprises main runner and dislocation runner, this dislocation runner makes it to occur orientation to a certain degree by rotation melt layer, thereby all hotter and colder melt layer are all evenly distributed on each runner, make molten plastic in runner flow more balanced, more balanced being filled in die cavity, can produce high-quality product.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Brief description of the drawings
Fig. 1 is the axonometric drawing of commonly using System of Injection Moulding;
Fig. 2 is axonometric drawing of the present utility model;
Fig. 3 is top view of the present utility model.
Detailed description of the invention
As shown in Figure 2 and Figure 3, the utility model is a kind of injection mold upset runner of flow equalization, and it comprises sprue 1, the first runner 2, the second runner 3, the 3rd runner 4, cast gate 5.
Described sprue 1 is communicated with the first runner 2, the second runner 3, the 3rd runner 4 successively, between the 3rd runner 4 and die cavity, is provided with cast gate 5.
The first described runner 2 comprises main runner 21 and dislocation runner 22, and this dislocation runner 22 is arranged on the middle part of main runner 21, by main runner 21 be divided into main enter runner 211 and main go out 212 two sections of runners.Described dislocation runner 22 comprises two bifurcated runners 221, a transition runner 222.One end of two described bifurcated runners 221 is communicated with the lower semisection that master enters runner 211 cross sections, article two, the other end of bifurcated runner 221 is connected to the two ends of transition runner 222, and the middle part of transition runner 222 is communicated with the upper semisection that master goes out runner 212 one end cross sections.
The second described runner 3 comprises main runner 31 and two dislocation runners 32.Two dislocation runners 32 are separately positioned on the middle part of main runner 31 both sides, and main both sides runner 31 is divided into and leads runner 311 and lead 312 two sections of runners.Described dislocation runner 32 comprises that two are entered bifurcated runner 321 and two and go out bifurcated runner 322; Two described one end of entering bifurcated runner 321 are communicated with the lower semisection that master enters runner 311 cross sections, article two, the other end that enters bifurcated runner 321 is communicated with two one end that go out bifurcated runner 322 respectively, after two other ends that go out bifurcated runner 322 converge, is communicated with the upper semisection of leading runner 312 one end cross sections.
The concrete connectivity structure of the each runner of the utility model:
Described sprue 1 is communicated with one end that the master of the main runner 21 of the first runner 2 enters runner 211; The lower semisection that the master of the first runner 2 goes out the other end cross section of runner 212 is connected with the middle part that the master of the main runner 31 of the second runner 3 enters runner 311, and the master of the main runner 31 of the second runner 3 goes out runner 312 other ends and is communicated with the 3rd runner 4.
The utility model molten plastic flows process:
Molten plastic flows into the first runner 2 from sprue 1, is overturn for the first time the dislocation runner 22 of the first runner 2 is interior; Molten plastic flows into the second runner 3 from the first runner 2, and two of the second runner 3 dislocation, runner 32 is interior is overturn for the second time; Molten plastic, in the time that the second runner 3 flows into the 3rd runner 4, is overturn for the third time.
Emphasis of the present utility model is just: arranging at runner middle part can be by the dislocation runner of molten plastic upset.
The above, it is only the utility model preferred embodiment, the quantity of dislocation runner can be determined according to needs, therefore can not limit the scope that the utility model is implemented with this, the equivalence done according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (3)
1. the injection mold of a flow equalization upset runner, it comprises sprue, multiple runner, cast gate; Described sprue is communicated with multiple runners, between multiple runners and die cavity, is provided with cast gate; It is characterized in that: described runner comprises main runner and dislocation runner, this dislocation runner is arranged on the middle part of main runner, main runner is divided into and leads runner and lead two sections of runners, one end of dislocation runner is communicated with the lower semisection that master enters runner cross section, and the other end of dislocation runner is communicated with the upper semisection that master goes out runner cross section.
2. the injection mold of flow equalization according to claim 1 upset runner, is characterized in that: described dislocation runner comprises two bifurcated runners, a transition runner; One end of two described bifurcated runners is communicated with the lower semisection that master enters runner cross section, and the other end of two bifurcated runners is connected to the two ends of transition runner, and the middle part of transition runner is communicated with the upper semisection that master goes out runner cross section.
3. the injection mold of flow equalization according to claim 1 upset runner, is characterized in that: described dislocation runner comprises that two are entered bifurcated runner and two and go out bifurcated runner; Two described one end of entering bifurcated runner are communicated with the lower semisection that master enters runner cross section, article two, the other end that enters bifurcated runner is communicated with two one end that go out bifurcated runner respectively, and two other ends that go out bifurcated runner are communicated with the upper semisection that master goes out runner cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871711.7U CN203726732U (en) | 2013-12-27 | 2013-12-27 | Injection mold reverse runner with balanced flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871711.7U CN203726732U (en) | 2013-12-27 | 2013-12-27 | Injection mold reverse runner with balanced flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203726732U true CN203726732U (en) | 2014-07-23 |
Family
ID=51196836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320871711.7U Expired - Lifetime CN203726732U (en) | 2013-12-27 | 2013-12-27 | Injection mold reverse runner with balanced flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203726732U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819123A (en) * | 2018-08-30 | 2018-11-16 | 珠海格力精密模具有限公司 | Runner Balance system and multi-cave mould |
| CN108858998A (en) * | 2018-06-25 | 2018-11-23 | 东莞市玖洲光学有限公司 | A kind of injection mold of camera lens mounting base |
| CN113400592A (en) * | 2021-06-18 | 2021-09-17 | 马勒汽车技术（中国）有限公司 | Mould with upset runner |
-
2013
- 2013-12-27 CN CN201320871711.7U patent/CN203726732U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108858998A (en) * | 2018-06-25 | 2018-11-23 | 东莞市玖洲光学有限公司 | A kind of injection mold of camera lens mounting base |
| CN108819123A (en) * | 2018-08-30 | 2018-11-16 | 珠海格力精密模具有限公司 | Runner Balance system and multi-cave mould |
| CN113400592A (en) * | 2021-06-18 | 2021-09-17 | 马勒汽车技术（中国）有限公司 | Mould with upset runner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |