CN102310528A - Die sinking structure with self-deciduous glue gate - Google Patents
Die sinking structure with self-deciduous glue gate Download PDFInfo
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- CN102310528A CN102310528A CN201110188977A CN201110188977A CN102310528A CN 102310528 A CN102310528 A CN 102310528A CN 201110188977 A CN201110188977 A CN 201110188977A CN 201110188977 A CN201110188977 A CN 201110188977A CN 102310528 A CN102310528 A CN 102310528A
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- mould
- mold insert
- die sinking
- stroke
- runner
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Abstract
The invention discloses a die sinking structure with a self-deciduous glue gate. The die sinking structure is deigned based on a front mould and a rear mould of an injection mould, and is characterized in that the front mould is equipped with a first mold insert with a first stroke in the front mould, and a circle halfpace in an inverted triangle shape is arranged on an end of the first mold insert toward the rear mould; the rear mould is equipped with a runner groove and a product cavity for injection moulding and a second mold insert with a second stroke in the rear mould. The second stroke is longer than the first one, and a bonding force P1 between the circle halfpace of the first mold insert and the channel, a degumming force P2, and a bonding force P3 between the second mold insert and the channel satisfy the relation that: P2<P1<P3. The application of the die sinking structure of the present invention utilizes die-opening forces of the front mould and the rear mould to effect on the runner, so as to drive the channel while realizing automatic glue gate falling off of a moulded product and the runner; and a two-plate die sinking structure can simplify a die structure of an injection moulding production and lower production costs.
Description
Technical field
The present invention relates to a kind of injection mold and improve, relate 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
Seeing that above-mentioned prior art injection mold in the defective that die sinking partly exists, the objective of the invention is to propose a kind of Jiao Kou from the die sinking structure that comes off, solve the problem that small-sized injection-molded finished parts moves back the mould rapid wear or scraps.
The object of the invention 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 die sinking structure of the present invention; 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, and specific embodiments of the invention is done further to detail, so that technical scheme of the present invention is easier to understand, grasp.
Description of drawings
Fig. 1 is the sketch map of die sinking structure of the present invention.
The specific embodiment
As shown in Figure 1, be that Jiao Kou of the present invention 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 die sinking structure of the present invention; 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 |
|---|---|---|---|
| CN 201110188977 CN102310528B (en) | 2011-07-07 | 2011-07-07 | Die sinking structure with self-deciduous glue gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110188977 CN102310528B (en) | 2011-07-07 | 2011-07-07 | Die sinking structure with self-deciduous glue gate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102310528A true CN102310528A (en) | 2012-01-11 |
| CN102310528B CN102310528B (en) | 2013-08-14 |
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ID=45424290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110188977 Expired - Fee Related CN102310528B (en) | 2011-07-07 | 2011-07-07 | Die sinking structure with self-deciduous glue gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102310528B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201205749Y (en) * | 2008-03-20 | 2009-03-11 | 邓美闪 | Automatic separation apparatus for completed product and sprue |
| CN101462346A (en) * | 2009-01-13 | 2009-06-24 | 浙江工商职业技术学院 | Thin entry nozzle injection mold safety scrapped part removing mechanism |
| CN202174707U (en) * | 2011-07-07 | 2012-03-28 | 苏州工业园区协利塑胶有限公司 | Mould opening structure with self-dropping sprue |
-
2011
- 2011-07-07 CN CN 201110188977 patent/CN102310528B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201205749Y (en) * | 2008-03-20 | 2009-03-11 | 邓美闪 | Automatic separation apparatus for completed product and sprue |
| CN101462346A (en) * | 2009-01-13 | 2009-06-24 | 浙江工商职业技术学院 | Thin entry nozzle injection mold safety scrapped part removing mechanism |
| CN202174707U (en) * | 2011-07-07 | 2012-03-28 | 苏州工业园区协利塑胶有限公司 | Mould opening structure with self-dropping sprue |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102310528B (en) | 2013-08-14 |
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Granted publication date: 20130814 Termination date: 20180707 |
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| CF01 | Termination of patent right due to non-payment of annual fee |