CN102294789A - Demoulding inclination-free injection mould and injection method applying same - Google Patents
Demoulding inclination-free injection mould and injection method applying same Download PDFInfo
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- CN102294789A CN102294789A CN201110245786XA CN201110245786A CN102294789A CN 102294789 A CN102294789 A CN 102294789A CN 201110245786X A CN201110245786X A CN 201110245786XA CN 201110245786 A CN201110245786 A CN 201110245786A CN 102294789 A CN102294789 A CN 102294789A
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Abstract
The invention relates to the technical field of injection mould equipment, in particular to a demoulding inclination-free injection mould and an injection method applying the same, wherein an ejection system comprises a push block, steam runners are respectively arranged at the peripheries of a fixed mould cavity and a movable mould core, the movable mould core and the fixed mould cavity can be quickly heated and cooled through the steam runners for closed mould injection, the push block can integrally eject a product at the straight extension position without tilt in a balancing way, and the size of the original mould is reduced; and through the mould assembly, rubber filling, heating, cooling and mould opening of the movable mould core and the fixed mould cavity which have the steam runners arranged at the peripheries, the injection method of the demoulding inclination-free injection mould quickly heats the product at first, when the product is pressurized after the formation, the fixed mould cavity and the movable mould core are simultaneously and quickly cooled, so the production cost of the mould can be reduced, the product is prevented from jacking to be white or adhering to the mould due to over small demoulding inclination, or is prevented from influencing the appearance and assembly due to overlarge angle.
Description
Technical field
The present invention relates to the injection mold equipment technical field, particularly a kind of injection moulding process that does not have the injection mold of depanning gradient and use this mould.
Background technology
At present, in traditional injection moulding process, product must the time add that certain depanning gradient (product is high more, and gradient is big more) reaches the injection mo(u)lding of product in design, the product injection moulding is finished after, when die sinking, product can be rested on the dynamic model just can eject product.If the gradient of mould is too small, then product can stick on cover half when die sinking, will inconvenience take out product and scratch product like this, influences the outward appearance of product, or ejects the product difficulty, and is easily that the product surface top is white, thereby causes scrappage higher.
In order to address the above problem, be in Mold Making, to add row position, four limits in the prior art, reduce the depanning gradient.Therefore, the size of mould must strengthen, and needs to adopt large-scale injection machine mould could be put into accordingly, can cause the Mold Making cycle long like this, and the cost of die cost and injection moulding all can improve.
At above-mentioned defective, how in the design of plastics injection mould, to improve, be that this area is worth research.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, provide a kind of simple and reasonable, production cost is low, shortened die manufacturing cycle, dwindled original die size, avoid product to occur product being pushed up white or glutinous cover half, again or the injection mold of the excessive no depanning gradient that influences outward appearance and assembling of angle and the injection moulding process of using this mould because of the depanning gradient is too small.
For achieving the above object, the present invention is by the following technical solutions: a kind of injection mold that does not have the depanning gradient, comprise that cover half is overall and dynamic model is overall, described cover half totally comprises solid plate and cover half chamber, described dynamic model totally comprises moving platen, moving-mould-core and ejection system, described ejection system comprises a pushing block that the product whole machine balancing can be ejected, and all offers steam flow channel around described cover half chamber and the described moving-mould-core.
Wherein, described pushing block and contacting that described moving-mould-core is parallel to each other.
Wherein, described cover half chamber offers cover half chamber steam flow channel, and described cover half chamber steam flow channel is connected with cover half chamber steam and chews.
Wherein, described moving-mould-core offers the moving-mould-core steam flow channel, and described moving-mould-core steam flow channel is connected with moving-mould-core steam and chews.
Wherein, described ejection system also comprises thimble, and an end of described thimble is connected by screw rod with described pushing block, and the other end of described thimble connects ejector retainner plate.
Use above-mentioned a kind of injection moulding process that does not have the injection mold of depanning gradient, may further comprise the steps:
A, matched moulds: make moving-mould-core and cover half chamber matched moulds;
B, injecting glue: to injecting glue in the die cavity behind the matched moulds;
C, heating: in to the die cavity behind the matched moulds, in the injecting glue cover half chamber and moving-mould-core injection steam are heated rapidly;
D, cooling: when after the plastic shaping of die cavity in pressurize is carried out, simultaneously cover half chamber and moving-mould-core are cooled off rapidly;
E, die sinking: described moving-mould-core continues cooling, ejects product until dynamic model and cover half after fully separately.
Beneficial effect of the present invention is: a kind of injection mold that does not have the depanning gradient of the present invention, comprise that cover half is overall and dynamic model is overall, described cover half totally comprises solid plate and cover half chamber, described dynamic model totally comprises moving platen, moving-mould-core and ejection system, described ejection system comprises a pushing block that the product whole machine balancing can be ejected, all offer steam flow channel around described cover half chamber and the described moving-mould-core, the present invention is simple and reasonable, by around described cover half chamber and described moving-mould-core, all offering steam flow channel, described steam flow channel is when mold-closing injection, can cool off rapidly moving-mould-core and cover half chamber, and described ejection system comprises a pushing block that the product whole machine balancing can be ejected, this pushing block can will have the product of directly stretching the position, whole machine balancing is nonangular to eject, so compared with prior art shorten die manufacturing cycle, dwindled original die size.
A kind of injection moulding process that does not have the injection mold of depanning gradient, the present invention is by all offering the moving-mould-core of steam flow channel and matched moulds, injecting glue, heating, cooling, the die sinking in cover half chamber all around, to have the product heating rapidly earlier of directly stretching the position, when after the plastic shaping of die cavity in pressurize is carried out, simultaneously cover half chamber and moving-mould-core are cooled off rapidly, can reduce the production cost of mould like this, avoid product to occur product being pushed up white or glutinous cover half, again or angle is excessive influences outward appearance and assembling because of the depanning gradient is too small.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of other direction of the present invention.
Reference numeral:
Dynamic model is overall for 1---cover half overall 2---
3---cover half chamber 4---moving-mould-core
5---pushing block 6---cover half chamber steam flow channel
7---cover half chamber steam chews 8---moving-mould-core steam flow channel
9---moving-mould-core steam is chewed.
The specific embodiment
The invention will be further described with embodiment below, is not practical range of the present invention is limited to this.
Embodiment one
As depicted in figs. 1 and 2, in the present embodiment, a kind of injection mold that does not have the depanning gradient, comprise cover half overall 1 and dynamic model overall 2, described cover half overall 1 comprises solid plate and cover half chamber 3, described cover half chamber 3 is set on the described solid plate, described solid plate offers the guide pillar hole, described dynamic model overall 2 comprises moving platen, moving-mould-core 4 and ejection system, described moving-mould-core 4 is set on the moving platen, described moving platen offers guide pillar, described guide pillar and described guide pillar hole are connected, and described ejection system comprises a pushing block 5 that the product whole machine balancing can be ejected, and all offer steam flow channel around described cover half chamber 3 and the described moving-mould-core 4, described steam flow channel can make the instantaneous moulding of product in the die cavity to moving-mould-core 4 and cover half chamber 3 transfer heat.
In the present embodiment, described pushing block 5 and contacting that described moving-mould-core 4 is parallel to each other, and described pushing block 5 can will have the product of directly stretching the position, whole machine balancing is nonangular to eject, and has so compared with prior art shortened die manufacturing cycle, has dwindled original die size.
In the present embodiment, described cover half chamber 3 offers cover half chamber steam flow channel 6, and described cover half chamber steam flow channel 6 is connected with steam and chews, and described cover half chamber steam flow channel 6 and cover half chamber steam chew 7 can be cover half chamber 3 transfer heat, makes the instantaneous moulding of product in the cover half chamber 3.
In the present embodiment, described moving-mould-core 4 offers moving-mould-core steam flow channel 8, and described moving-mould-core steam flow channel 8 is connected with moving-mould-core steam and chews 9, and described moving-mould-core steam flow channel 8 and moving-mould-core steam chew 9, can be moving-mould-core 4 transfer heat, make the instantaneous moulding of product in the dynamic model chamber.
In the present embodiment, described ejection system also comprises thimble, one end of described thimble and described pushing block 5 are connected by screw rod, the other end of described thimble connects ejector retainner plate, described ejector retainner plate, thimble and pushing block 5 are connected and use, be beneficial to will have directly stretch the position product, whole machine balancing is nonangular to eject, and can avoid influencing the outward appearance and the assembling of product like this.
The present invention is simple and reasonable, by around described cover half chamber 3 and described moving-mould-core 4, all offering steam flow channel, described steam flow channel is when mold-closing injection, can cool off rapidly moving-mould-core 4 and cover half chamber 3, and described ejection system comprises a pushing block 5 that the product whole machine balancing can be ejected, and this pushing block 5 can will have the product of directly stretching the position, and whole machine balancing is nonangular to eject, so compared with prior art shorten die manufacturing cycle, dwindled original die size.
Embodiment two, and as depicted in figs. 1 and 2, a kind of injection moulding process that does not have the injection mold of depanning gradient may further comprise the steps:
A, matched moulds: make moving-mould-core 4 and cover half chamber 3 matched moulds,, set out and directly stretch directly stretching moving-mould-core 4 and directly stretching cover half chamber 3 of matching, will directly stretch moving-mould-core 4 afterwards and directly stretch cover half chamber 3 matched moulds promptly at having the product of directly stretching the position;
B, injecting glue: to injecting glue in the die cavity behind the matched moulds, injecting glue in the die cavity after soon directly stretching moving-mould-core 4 and directly stretching cover half chamber 3 matched moulds;
C, heating: in to the die cavity behind the matched moulds, in the injecting glue cover half chamber 3 and moving-mould-core 4 injection steam are heated rapidly, chew with steam flow channel by described steam hot gas is sent in the die cavity after directly stretching moving-mould-core 4 and directly stretching cover half chamber 3 matched moulds, make the plastic cement moulding immediately in the die cavity after directly stretching moving-mould-core 4 and directly stretching cover half chamber 3 matched moulds.
D, cooling: when after the plastic shaping of die cavity in pressurize is carried out, simultaneously cover half chamber 3 and moving-mould-core 4 are cooled off rapidly, can avoid product to occur product being pushed up white or glutinous cover half like this, again or angle is excessive influences outward appearance and assembling because of the depanning gradient is too small;
E, die sinking: described moving-mould-core 4 continues cooling, ejects product until dynamic model and cover half after fully separately, is convenient to nonangular the ejecting of product whole machine balancing with moulding like this.
The present invention is by all offering the moving-mould-core 4 of steam flow channel and matched moulds, injecting glue, heating, cooling, the die sinking in cover half chamber 3 all around, to have the product heating rapidly earlier of directly stretching the position, when the plastic product moulding in the die cavity but not before the pressurize, cover half chamber 3 and moving-mould-core 4 are cooled off rapidly, can reduce the production cost of mould like this, avoid product to occur product being pushed up white or glutinous cover half, again or angle is excessive influences outward appearance and assembling because of the depanning gradient is too small.
The above only is a better embodiment of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in the patent claim of the present invention.
Claims (6)
1. injection mold that does not have the depanning gradient, comprise that cover half is overall and dynamic model is overall, described cover half totally comprises solid plate and cover half chamber, described dynamic model totally comprises moving platen, moving-mould-core and ejection system, it is characterized in that: described ejection system comprises a pushing block that the product whole machine balancing can be ejected, and all offers steam flow channel around described cover half chamber and the described moving-mould-core.
2. a kind of injection mold that does not have the depanning gradient according to claim 1 is characterized in that: described pushing block and contacting that described moving-mould-core is parallel to each other.
3. a kind of injection mold that does not have the depanning gradient according to claim 1 is characterized in that: described cover half chamber offers cover half chamber steam flow channel, and described cover half chamber steam flow channel is connected with cover half chamber steam and chews.
4. a kind of injection mold that does not have the depanning gradient according to claim 1, it is characterized in that: described moving-mould-core offers the moving-mould-core steam flow channel, and described moving-mould-core steam flow channel is connected with moving-mould-core steam and chews.
5. a kind of injection mold that does not have the depanning gradient according to claim 1, it is characterized in that: described ejection system also comprises thimble, and an end of described thimble is connected by screw rod with described pushing block, and the other end of described thimble connects ejector retainner plate.
6. application rights requires 1 described a kind of injection moulding process that does not have the injection mold of depanning gradient, it is characterized in that, may further comprise the steps:
A, matched moulds: make moving-mould-core and cover half chamber matched moulds;
B, injecting glue: to injecting glue in the die cavity behind the matched moulds;
C, heating: in to the die cavity behind the matched moulds, in the injecting glue cover half chamber and moving-mould-core injection steam are heated rapidly;
D, cooling: when after the plastic shaping of die cavity in pressurize is carried out, simultaneously cover half chamber and moving-mould-core are cooled off rapidly;
E, die sinking: described moving-mould-core continues cooling, ejects product until dynamic model and cover half after fully separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110245786XA CN102294789A (en) | 2011-08-25 | 2011-08-25 | Demoulding inclination-free injection mould and injection method applying same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110245786XA CN102294789A (en) | 2011-08-25 | 2011-08-25 | Demoulding inclination-free injection mould and injection method applying same |
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| Publication Number | Publication Date |
|---|---|
| CN102294789A true CN102294789A (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110245786XA Pending CN102294789A (en) | 2011-08-25 | 2011-08-25 | Demoulding inclination-free injection mould and injection method applying same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943070A (en) * | 2015-05-29 | 2015-09-30 | 宁海县现代模具有限公司 | Two-color die for automobile instrument boards |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201597158U (en) * | 2010-02-05 | 2010-10-06 | 昆山友成精密模具有限公司 | Plastic mold |
| CN202192733U (en) * | 2011-08-25 | 2012-04-18 | 毅昌金型（东莞）五金制品有限公司 | Injection mould without draft angle |
-
2011
- 2011-08-25 CN CN201110245786XA patent/CN102294789A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201597158U (en) * | 2010-02-05 | 2010-10-06 | 昆山友成精密模具有限公司 | Plastic mold |
| CN202192733U (en) * | 2011-08-25 | 2012-04-18 | 毅昌金型（东莞）五金制品有限公司 | Injection mould without draft angle |
Non-Patent Citations (2)
| Title |
|---|
| 熊毅: "介绍两种无斜度塑件的脱模方法", 《模具工业》 * |
| 车承华: "电视机前框无斜度模具设计", 《模具工业》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943070A (en) * | 2015-05-29 | 2015-09-30 | 宁海县现代模具有限公司 | Two-color die for automobile instrument boards |
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Application publication date: 20111228 |