CN202174707U - Mould opening structure with self-dropping sprue - Google Patents
Mould opening structure with self-dropping sprue Download PDFInfo
- Publication number
- CN202174707U CN202174707U CN2011202373022U CN201120237302U CN202174707U CN 202174707 U CN202174707 U CN 202174707U CN 2011202373022 U CN2011202373022 U CN 2011202373022U CN 201120237302 U CN201120237302 U CN 201120237302U CN 202174707 U CN202174707 U CN 202174707U
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- mould
- runner
- stroke
- insert
- mold insert
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Abstract
The utility model discloses a mould opening structure with a self-dropping sprue. The mould opening structure with the self-dropping sprue is designed on the basis of a front mould and a rear mould of an injection mould and is characterized in that: the front mould is provided with a first insert with a first stroke in the front mould; a chamfer-shaped round ladder platform is arranged at the end part, facing the rear mould, of the first insert; the rear mould is provided with a runner groove for injection moulding, a product cavity and a second insert with a second stroke in the rear mould; the second stroke is larger than the first stroke; and the relationship among the bonding force P1 of the round ladder platform of the first insert and the runner, the degumming force P2 and the bonding force P3 between the second insert and the runner is that P1 is more than P2 and less than P3. In application of the mould opening structure, the mould opening force of the front mould and the rear mould is applied to the runner, so that the moulded product can be separated from the automatic sprue of the runner when coming out of the runner. The double-plate type mould opening structure simplifies the mould structure for injection moulding production and reduces production cost.
Description
Technical field
The utility model relates to a kind of injection mold to be improved, and relates in particular to a kind of die sinking structure of injection mold.
Background technology
Make in the process of plastic cement products in traditional injection mo(u)lding, the mould that moves back of product normally leans on ejector retainner plate to promote thimble, by thimble product is released from the core of mould then.Yet, for the very little product of many volumes own, continue to rely on thimble to release finished product and seemed and relatively be difficult to realize, even cause Jiao Kou on the skew to rupture and make product rejection.
Summary of the invention
In view of the defective that above-mentioned prior art injection mold partly exists in die sinking, the purpose of the utility model is to propose a kind of Jiao Kou from the die sinking structure that comes off, and solves the problem that small-sized injection-molded finished parts moves back the mould rapid wear or scraps.
The purpose of the utility model will be achieved through following technical scheme:
A kind of Jiao Kou is from the die sinking structure that comes off; Front mould based on injection mold is established with the back mould; It is characterized in that: said front mould is provided with first mold insert of tool first stroke in front mould; And the end of first mold insert mould towards the back is provided with the circular halfpace of a chamfering shape; Said back mould be provided with injection molding flow path groove, product die cavity and in the mould of back second mold insert of tool second stroke, wherein said second stroke is greater than first stroke, and satisfies P2＜P1＜P3 between the adhesion P3 of the adhesion P1 of the circular halfpace of first mold insert and runner, the power of coming unstuck P2 and second mold insert and runner.
The application implementation of the utility model die sinking structure; Comparing to its significant advantage of prior art is: utilize the front mould and the mould opening force of back mould that runner is applied effect; Can realize when taking runner out of that the automatic Jiao Kou of shaped article and runner comes off; With the die sinking structure of two-plate, simplified the mould structure that injection moulding is produced, reduced production cost.
Following constipation closes the embodiment accompanying drawing, the specific embodiment of the utility model is done further to detail, so that the utility model technical scheme is easier to understand, grasp.
Description of drawings
Fig. 1 is the sketch map of the utility model die sinking structure.
The specific embodiment
As shown in Figure 1, be that the utility model Jiao Kou is from the structural representation of the die sinking structure that comes off in forward and backward mould opening.From visible shown in the figure: this front mould 3 is provided with first mold insert 1 of the tool first stroke H1 front mould; And the end of first mold insert mould towards the back is provided with the circular halfpace 11 of a chamfering shape; Then mould 4 be provided with injection molding flow path groove, product die cavity and in the mould of back second mold insert 2 of the tool second stroke H2, wherein satisfy P2＜P1＜P3 between the adhesion P3 of the power of the coming unstuck P2 of the adhesion P1 of the circular halfpace 11 of first mold insert and runner, Jiao Kou and second mold insert and runner.Come off required dynamics and the gradient of circular halfpace debugged of the Jiao Kou that its implementation is mainly determined according to the material of moulding own is to meet above dynamics magnitude relationship.Can also see from diagram; The above-mentioned second stroke H2 is greater than the first stroke H1; This also is the key point that realizes above-mentioned dynamics magnitude relationship, through front mould or the architecture advances of back mould on the mold insert passage, further standard mold insert sliding stroke and produce the adhesion of certain intensity where necessary.
Process from die sinking: when driving front mould 3 and separate, utilize mould opening force to drive first mold insert by front mould earlier and under the effect of adhesion P1, runner is taken out of from the mould of back, and in the process of taking out of, come off automatically with the Jiao Kou of shaped article 5 with back mould 4; This moment, second mold insert 2 was to move along front mould 3 in the lump together with runner; Ended by back mould card behind the second formation H2 until second mold insert 2; This moment is based on above-mentioned dynamics magnitude relationship; Under the state that front mould continue to be opened, second mold insert 2 is just pulled out runner automatically from the circular halfpace 11 of first mold insert, gets runner and finished product is provided convenience for follow-up.
Visible through above description: the application implementation of the utility model die sinking structure; Utilize the front mould and the mould opening force of back mould that runner is applied effect; Can realize when taking runner out of that the automatic Jiao Kou of shaped article and runner comes off; With the die sinking structure of two-plate, simplified the mould structure that injection moulding is produced, reduced production cost.
Claims (1)
1. a Jiao Kou is from the die sinking structure that comes off; Front mould based on injection mold is established with the back mould; It is characterized in that: said front mould is provided with first mold insert of tool first stroke in front mould; And the end of first mold insert mould towards the back is provided with the circular halfpace of a chamfering shape; Said back mould be provided with injection molding flow path groove, product die cavity and in the mould of back second mold insert of tool second stroke, wherein said second stroke is greater than first stroke, and satisfies P2＜P1＜P3 between the adhesion P3 of the adhesion P1 of the circular halfpace of first mold insert and runner, the power of coming unstuck P2 and second mold insert and runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202373022U CN202174707U (en) | 2011-07-07 | 2011-07-07 | Mould opening structure with self-dropping sprue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202373022U CN202174707U (en) | 2011-07-07 | 2011-07-07 | Mould opening structure with self-dropping sprue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202174707U true CN202174707U (en) | 2012-03-28 |
Family
ID=45864609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202373022U Withdrawn - After Issue CN202174707U (en) | 2011-07-07 | 2011-07-07 | Mould opening structure with self-dropping sprue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202174707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310528A (en) * | 2011-07-07 | 2012-01-11 | 苏州工业园区协利塑胶有限公司 | Die sinking structure with self-deciduous glue gate |
-
2011
- 2011-07-07 CN CN2011202373022U patent/CN202174707U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310528A (en) * | 2011-07-07 | 2012-01-11 | 苏州工业园区协利塑胶有限公司 | Die sinking structure with self-deciduous glue gate |
| CN102310528B (en) * | 2011-07-07 | 2013-08-14 | 苏州工业园区协利塑胶有限公司 | Die sinking structure with self-deciduous glue gate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120328 Effective date of abandoning: 20130814 |
|
| RGAV | Abandon patent right to avoid regrant |