CN203752418U - Mold structure capable of improving injection molding shrinkage - Google Patents
Mold structure capable of improving injection molding shrinkage Download PDFInfo
- Publication number
- CN203752418U CN203752418U CN201320643717.9U CN201320643717U CN203752418U CN 203752418 U CN203752418 U CN 203752418U CN 201320643717 U CN201320643717 U CN 201320643717U CN 203752418 U CN203752418 U CN 203752418U
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- China
- Prior art keywords
- jacking block
- shrinkage
- ejector block
- model
- mold
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Abstract
The utility model discloses a mold structure capable of improving the injection molding shrinkage. The mold structure comprises a male mold, at least two female molds and an ejector block, wherein the male mold is positioned above the female molds; the ejector block is positioned between the two female molds, and a mold cavity is formed between the male and female molds and one end of the ejector block. A conventional mold cavity forming mechanism is changed, and the ejector block is additionally arranged, so that the mold cavity at a position easily shrunk is quickly ejected by the ejector block, the glue density of the position is improved, and the shrinkage rate is reduced; moreover, the ejector block can move up and down, inward shrinkage tensile force of an injection molding material at the shrinkage position is offset, the shrinkage position is not prone to sinking, and the problem of shrinkage is retarded, so that the quality of an injection molded product is ensured.
Description
Technical field
The utility model relates to the mould structure that can improve injection moulding shrink in a kind of injection mold.
Background technology
At Injection Industry, traditional mold injection die cavity as shown in Figure 1, directly forms traditional die cavity (3) between male model (1) and master mold.When the injection area of product is larger, be traditional die cavity (3) area more greatly or when longer, the phenomenon of shrinking easily appears in the product surface of injection moulding, is generally the mid portion of product surface, this shrink place (2) is subject to the pulling force that surperficial injected plastics material inwardly shrinks to form depression, affects product quality.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of mould structure that injection moulding is shunk that improves, this mould structure changes traditional die cavity and forms mechanism, increase a jacking block, make the die cavity of easy shrink place eject fast glue bit density increase herein, washing shrinkage are reduced by jacking block, and this jacking block can move up and down, the inside pulling force shrinking of injected plastics material of offsetting shrink place, slows down the appearance of shrink problem.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of mould structure that injection moulding is shunk that improves is provided, it comprises male model, master mold and jacking block, described male model is positioned at described master mold top, described master mold has two at least, described jacking block, between described two master molds, forms die cavity between described male model and described master mold and one end of described jacking block.
In preferred embodiment of the utility model, described male model is corresponding with described master mold and jacking block position, the vertical middle part of pointing to described die cavity horizontal level, described one end of described jacking block.
The beneficial effects of the utility model are: by changing traditional die cavity, form mechanism, increase a jacking block, make the die cavity of easy shrink place eject fast glue bit density increase herein, washing shrinkage are reduced by jacking block, and this jacking block can move up and down, offset the inside pulling force shrinking of injected plastics material of shrink place, make shrink place be not easy to form depression, slow down the appearance of shrink problem, thereby guarantee the quality of injecting products.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the structural representation of mould structure of the prior art;
Fig. 2 is the structural representation that the utility model improves the mould structure of injection moulding shrink;
Fig. 3 is the structural representation of the jacking block in Fig. 2 while ejecting.
In figure, the mark of each parts is as follows: 1, male model, 2, shrink place, 3, traditional die cavity, 4, die cavity, 5, jacking block, 6, master mold.
The specific embodiment
Below the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 2, the mould structure that improves injection moulding shrink of the present utility model comprises male model 1, master mold 6 and jacking block 5, described male model 1 is positioned at described master mold 6 tops, described master mold 6 has two at least, described jacking block 5, between described two master molds 6, forms die cavity 4 between described male model 1 and described master mold 6 and one end of described jacking block 5.
Preferably, described male model 1 is corresponding with described master mold 6 and jacking block 5 positions, the vertical middle part of pointing to described die cavity 4 horizontal levels, described one end of described jacking block 5.The size of jacking block 5 is according to injected plastics material and die cavity size and shape design.
Further, the sealant of heating is injected in die cavity 4 until be full of die cavity 4, then lowers the temperature and forms needed product at die cavity 4.As shown in Figure 3, in the process of cooling, easily the die cavity of shrink place is upwards ejected fast the increase of glue bit density, the washing shrinkage of injection moulding is herein reduced by jacking block 5, and on jacking block 5, move shrink place is produced to extruding, the convergent force of opposing injected plastics material, slow down shrinking deformation and form depression, make product surface be tending towards smooth, reach the flatness needing.
Be different from prior art, the mould structure that improves injection moulding shrink of the present utility model, by the setting of jacking block, can effectively slow down the shrinking deformation of injecting products in injection moulding process, is conducive to guarantee the quality of injecting products.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (2)
1. one kind is improved the mould structure that injection moulding is shunk, it is characterized in that: comprise male model, master mold and jacking block, described male model is positioned at described master mold top, described master mold has two at least, described jacking block, between described two master molds, forms die cavity between described male model and described master mold and one end of described jacking block.
2. the mould structure that improves injection moulding shrink according to claim 1, is characterized in that, described male model is corresponding with described master mold and jacking block position, the vertical middle part of pointing to described die cavity horizontal level, described one end of described jacking block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320643717.9U CN203752418U (en) | 2013-10-18 | 2013-10-18 | Mold structure capable of improving injection molding shrinkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320643717.9U CN203752418U (en) | 2013-10-18 | 2013-10-18 | Mold structure capable of improving injection molding shrinkage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203752418U true CN203752418U (en) | 2014-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320643717.9U Expired - Fee Related CN203752418U (en) | 2013-10-18 | 2013-10-18 | Mold structure capable of improving injection molding shrinkage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203752418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106426778A (en) * | 2016-10-26 | 2017-02-22 | 佛山市顺德区百年科技有限公司 | Forward installation remote back mold plastic feeding mold structure |
-
2013
- 2013-10-18 CN CN201320643717.9U patent/CN203752418U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106426778A (en) * | 2016-10-26 | 2017-02-22 | 佛山市顺德区百年科技有限公司 | Forward installation remote back mold plastic feeding mold structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20171018 |