CN203994539U - A kind of injection mold exhaust apparatus - Google Patents
A kind of injection mold exhaust apparatus Download PDFInfo
- Publication number
- CN203994539U CN203994539U CN201420285752.2U CN201420285752U CN203994539U CN 203994539 U CN203994539 U CN 203994539U CN 201420285752 U CN201420285752 U CN 201420285752U CN 203994539 U CN203994539 U CN 203994539U
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- Prior art keywords
- die
- exhaust
- mold insert
- bleed groove
- air channel
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Abstract
A kind of injection mold exhaust apparatus, relate to technical field of mold, comprise by A die, be built in the die cavity that exhaust mold insert in A die and B die common combination form, exhaust mold insert offers the annular row air drain being connected with die cavity and the tap air channel being connected with annular row air drain, and tap air channel is in communication with the outside by the steam vent being opened on B die.Gas in die cavity is pooled to tap air channel by annular row air drain, discharge through steam vent again, exhaust performance is good, and the steam vent that tap air channel causes gas on B die is discharged, can effectively slow down the percussive pressure of exhaust, avoid making because pressure at expulsion is excessive the die joint distending of mould, and then avoid the generation of overlap, improve product quality; In addition, annular row air drain and tap air channel are all opened on exhaust mold insert, can effectively ensure die intensity, increase the service life of mould, and exhaust mold insert is also convenient to repair a die, and reduce the waste of mould.
Description
Technical field
The utility model relates to injection mold technical field, is specifically related to a kind of injection mold exhaust apparatus.
Background technology
In the process of injecting to mold cavity at plastic cement melt, owing to having air in die cavity and running gate system, melt decomposes can produce gas, moisture in plastic cement also can flash to gaseous state under injection high temperature, also has the gas that some additive volatilizees or chemical reaction generates in melt, if these gases can not be discharged in time, in the time of punch die, will in die cavity, form high pressure air mass, and then cause lack material, merge bad, the product defect such as burn; In the time of die sinking, will make to form negative pressure in die cavity, cause die sinking, demoulding difficulty, damage goods.Therefore, necessary designing and arranging device of air in the time carrying out design of mould cavity, especially for large-scale product, thin wall parts, high speed injection molding and thermoset plastic forming, the setting of exhaust apparatus is particularly important, exhaust apparatus can be discharged the gas in die cavity in time, not only can avoid product surface to burn and loading deficiency, can also eliminate and enter the inner various product defects such as gas line, tissue looseness that cause of goods because of gas.
In prior art, modal exhaust apparatus is to offer air discharge duct on the die joint of mould, air discharge duct is generally shallow and wide flat groove, one end of air discharge duct is communicated with die cavity, and the other end leads to outside mould by air slot or gas port, and the air discharge duct of this kind of structure easily causes residual rubber powder on die joint and makes product produce overlap, have a strong impact on product quality, and the follow-up frequent needs of these overlaps manually excise, increase cost of labor, reduce production efficiency.Chinese patent CN201320351270.8 discloses a kind of mold parting surface entirety exhaust structure and mould, the exhaust communicating due to the annular row air drain in its structure with annular row air drain is propped up groove and is all arranged on die joint, in the time that pressure at expulsion is larger, the gas of pressurized can make die joint distending and produce overlap, in addition, air discharge duct is directly opened on die, will affect intensity and the service life of mould, if need to change the size of air discharge duct according to actual conditions, will certainly increase the difficulty and the cost that repair a die.
Summary of the invention
The purpose of this utility model is for deficiency of the prior art, and the injection mold exhaust apparatus that a kind of exhaust performance is good, non-trimming produces, is convenient to repair a die is provided, and this exhaust apparatus can also ensure mould strength, increases die life, improves product quality.
The purpose of this utility model is achieved through the following technical solutions:
A kind of injection mold exhaust apparatus is provided, comprise A die and B die, wherein, also comprise exhaust mold insert, described exhaust mold insert is built in described A die, and described A die, described exhaust mold insert and described B die are together to form die cavity, and described exhaust mold insert offers annular row air drain and tap air channel, described annular row air drain is communicated with described die cavity and described tap air channel, and described tap air channel is in communication with the outside by the steam vent being opened on described B die.
Wherein, described tap air channel comprise be opened in described exhaust mold insert inner side the first bleed groove, be opened in the second bleed groove of described exhaust mold insert bottom and be opened in the 3rd bleed groove in described exhaust mold insert outside, described the first bleed groove is communicated with described the 3rd bleed groove by described the second bleed groove.
Wherein, described the first bleed groove runs through described annular row air drain and described the second bleed groove.
Wherein, described the 3rd bleed groove is communicated with the steam vent on described B die.
Wherein, the degree of depth of described the 3rd bleed groove expands gradually from one end to the other end being communicated with the second bleed groove.
Wherein, also comprise locating dowel, described exhaust mold insert is fixed in the die cavity of described A die by described locating dowel.
Wherein, in the die cavity of described A die, offer location blind hole, the position that described exhaust mold insert and described location blind hole are just right offers positioning through hole, and described locating dowel is fixed on described location blind hole and passes described positioning through hole to realize the fixing of described exhaust mold insert and described A die.
Wherein, described exhaust mold insert and described A die are matched in clearance.
Wherein, the thickness of described exhaust mold insert is 8～12mm.
the beneficial effects of the utility model:
Injection mold exhaust apparatus of the present utility model, comprise A die and, B die and exhaust mold insert, exhaust mold insert is built in A die, A die, exhaust mold insert and B die are combined into die cavity, exhaust mold insert offers annular row air drain and tap air channel, annular row air drain is communicated with die cavity and tap air channel, and tap air channel is in communication with the outside by the steam vent being opened on B die.When injecting products, gas in die cavity is pooled to tap air channel by annular row air drain, because tap air channel is in communication with the outside by steam vent, thereby the gas in die cavity is discharged fast, exhaust performance is good, and the steam vent that tap air channel causes the gas in die cavity on B die is discharged, with die joint exhaust of the prior art, can effectively slow down the surge of exhaust, avoid making because pressure at expulsion is excessive the die joint distending of mould, and then avoid the generation of overlap, improve product quality; In addition, annular row air drain and tap air channel are all opened on exhaust mold insert, can effectively ensure die intensity, increase the service life of mould, exhaust mold insert is also convenient to repair a die, and can adjust at any time the size of annular air discharge duct and tap air channel, reduces the waste of mould.
Brief description of the drawings
Fig. 1 is the decomposing schematic representation of a kind of injection mold exhaust apparatus of the present utility model;
Fig. 2 is the structural representation at another visual angle of the exploded view of a kind of injection mold exhaust apparatus of the present utility model;
Fig. 3 is the structural representation of exhaust mold insert of the present utility model and the combination of A die.
In Fig. 1 to Fig. 3, include:
A die 1, exhaust mold insert 2, annular row air drain 3, tap air channel 4, the first bleed groove 5, the second bleed groove 6, the 3rd bleed groove 7, positioning through hole 8, locating dowel 9.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
The specific embodiment of a kind of injection mold exhaust apparatus of the present utility model as shown in Figure 1 to Figure 3, comprise A die 1 and B die, wherein, also comprise exhaust mold insert 2, exhaust mold insert 2 is built in A die 1, A die 1, exhaust mold insert 2 form formation die cavity jointly with B die, and exhaust mold insert 2 offers and is communicated with the annular row air drain 3 of described die cavity and the tap air channel 4 being connected with annular row air drain 3, and tap air channel 4 is in communication with the outside by the steam vent being opened on B die.When product injection moulding, the gas in die cavity is collected in tap air channel 4 by annular row air drain 3, then discharges by the steam vent being connected with tap air channel 4, and exhaust velocity is fast, and exhaust performance is good.
As shown in Figure 1 to Figure 2, tap air channel 4 comprise be opened in exhaust mold insert 2 inner sides the first bleed groove 5, be opened in the second bleed groove 6 of exhaust mold insert 2 bottoms and be opened in the 3rd bleed groove 7 in exhaust mold insert 2 outsides, the first bleed groove 5 is communicated with the 3rd bleed groove 7 by the second bleed groove 6, the corner angle of the bottom surface composition of the lateral surface of exhaust mold insert 2 and exhaust mold insert 2 are provided with chamfering, this chamfering and A die 1 are combined into circular passage, this circular passage is communicated with the second all bleed grooves 6 and the 3rd bleed groove 7, is conducive to the uniformity of pressure at expulsion.
The inner side of exhaust mold insert 2 also offers annular row air drain 3, the first bleed groove 5 runs through annular row air drain 3 and the second bleed groove 6, and the groove width of the first bleed groove 5 is less than the groove width of the second bleed groove 6, the first bleed groove 5 is perpendicular to wearing annular row air drain 3, realize being communicated with of annular row air drain 3 and the second bleed groove 6, again because the second bleed groove 6 is communicated with the 3rd bleed groove 7, finally realize annular row air drain 3 successively by the first bleed groove 5, the second bleed groove 6 is communicated with the 3rd bleed groove 7, and the 3rd bleed groove 7 is communicated with the steam vent on B die, in injection moulding process, gas in die cavity is pooled to the first bleed groove 5 by annular row air drain 3, and then successively through the second bleed groove 6, the 3rd bleed groove 7, steam vent, gas is discharged the most at last.Gas in die cavity is through the then discharge of the steam vent on B die of multiple bleed grooves, with respect to traditional die joint exhaust, can effectively slow down the surge of exhaust, avoid making because pressure at expulsion is excessive the die joint distending of mould, and then this exhaust apparatus can be avoided the generation of overlap, raising product quality; In addition, because annular row air drain 3 and tap air channel 4 are all opened on exhaust mold insert 2, can effectively ensure the intensity of A die 1, increase the service life of mould, exhaust mold insert 2 is also convenient to repair a die, and can adjust at any time the size of annular air discharge duct 3 and tap air channel 4, reduces the waste of mould.
Concrete, the 3rd bleed groove 7 expands gradually from one end to the other end being communicated with the second bleed groove 6, make groove depth or the groove depth of the 3rd bleed groove 7 there is certain gradient, be conducive to the discharge of mould intracavity gas, and the groove depth of annular row air drain 3 is 0.01mm, the groove depth of the first bleed groove 5 and the second bleed groove 6 is 0.25mm, certainly, according to the flash value of different plastic materials, can repair a die to the size of annular row air drain 3 and tap air channel 4, and being set to repair a die convenience is provided of exhaust mold insert 2.
Concrete, the thickness of exhaust mold insert 2 is set to 8～12mm, and preferred one-tenth-value thickness 1/10 is got 10～12mm, to ensure the indeformable of the intensity of die 1 and exhaust mold insert 2.
Exhaust apparatus in the present embodiment also comprises locating dowel 9, and exhaust mold insert 2 is fixed in A die 1 by locating dowel 9, adopts locating dowel 9 fixing simple and convenient, and detachable, is convenient to replacing, the maintenance of exhaust mold insert 2.
Concrete, in the die cavity of die 1, offer location blind hole, exhaust mold insert 2 position just right with locating blind hole offers positioning through hole 8, locating dowel 9 is fixed on location blind hole and passes positioning through hole 8 to realize the fixing of exhaust mold insert 2 and A die 1, due to exhaust mold insert 2 and A die 1 matched in clearance, its monolateral fit clearance is preferably 0.01mm, exhaust mold insert 2 can be sheathed on easily in locating dowel 9 or from locating dowel 9 and take off like this, be convenient to the replacing of exhaust mold insert 2, maintenance, preferably, locating dowel 9 is alignment pin, alignment pin is standard component, be convenient to change and locate the processing of blind hole and positioning through hole 8.
As shown in Figure 3, exhaust mold insert 2 concordant with the stitching surface of die 1 above, makes exhaust mold insert 2 become the part of A die 1, the die joint that jointly forms mould above with the stitching surface of A die 1 of exhaust mold insert 2, can jointly bear clamping pressure, reduce the damage of die.
Above embodiment is only in order to the technical solution of the utility model to be described, but not restriction to the utility model protection domain can be modified or be equal to replacement the technical solution of the utility model, and do not departed from essence and the scope of technical solutions of the utility model.
Claims (9)
1. an injection mold exhaust apparatus, comprise A die and B die, it is characterized in that: also comprise exhaust mold insert, described exhaust mold insert is built in described A die, described A die, described exhaust mold insert and described B die are together to form die cavity, described exhaust mold insert offers annular row air drain and tap air channel, and described annular row air drain is communicated with described die cavity and described tap air channel, and described tap air channel is in communication with the outside by the steam vent being opened on described B die.
2. a kind of injection mold exhaust apparatus according to claim 1, it is characterized in that: described tap air channel comprise be opened in described exhaust mold insert inner side the first bleed groove, be opened in the second bleed groove of described exhaust mold insert bottom and be opened in the 3rd bleed groove in described exhaust mold insert outside, described the first bleed groove is communicated with described the 3rd bleed groove by described the second bleed groove.
3. a kind of injection mold exhaust apparatus according to claim 2, is characterized in that: described the first bleed groove runs through described annular row air drain and described the second bleed groove.
4. a kind of injection mold exhaust apparatus according to claim 2, is characterized in that: described the 3rd bleed groove is communicated with the steam vent on described B die.
5. a kind of injection mold exhaust apparatus according to claim 2, is characterized in that: described the 3rd bleed groove expands gradually from one end to the other end being communicated with the second bleed groove.
6. a kind of injection mold exhaust apparatus according to claim 1, is characterized in that: also comprise locating dowel, described exhaust mold insert is fixed in described A die by described locating dowel.
7. a kind of injection mold exhaust apparatus according to claim 6, it is characterized in that: in the die cavity of described A die, offer location blind hole, the position that described exhaust mold insert and described location blind hole are just right offers positioning through hole, and described locating dowel is fixed on described location blind hole and passes described positioning through hole to realize the fixing of described exhaust mold insert and described A die.
8. a kind of injection mold exhaust apparatus according to claim 1, is characterized in that: described exhaust mold insert and described A die are matched in clearance.
9. a kind of injection mold exhaust apparatus according to claim 1, is characterized in that: the thickness of described exhaust mold insert is 8～12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285752.2U CN203994539U (en) | 2014-05-30 | 2014-05-30 | A kind of injection mold exhaust apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285752.2U CN203994539U (en) | 2014-05-30 | 2014-05-30 | A kind of injection mold exhaust apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203994539U true CN203994539U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420285752.2U Expired - Fee Related CN203994539U (en) | 2014-05-30 | 2014-05-30 | A kind of injection mold exhaust apparatus |
Country Status (1)
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| CN (1) | CN203994539U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235129A (en) * | 2015-11-03 | 2016-01-13 | 东莞市誉铭新精密技术股份有限公司 | Injection mold for sheet formation |
| CN108247916A (en) * | 2018-03-27 | 2018-07-06 | 山东豪迈机械科技股份有限公司 | Crawler belt sulfurizing mould |
| CN108437356A (en) * | 2018-03-13 | 2018-08-24 | 苏州精锐精密机械有限公司 | Injection mold |
| CN108773059A (en) * | 2018-07-27 | 2018-11-09 | 东莞市源冠塑胶模具有限公司 | A kind of mold for sheet forming setting process |
| CN111531757A (en) * | 2020-05-28 | 2020-08-14 | 广东铭利达科技有限公司 | Mould exhaust structure |
| CN111546586A (en) * | 2020-05-28 | 2020-08-18 | 广东铭利达科技有限公司 | Exhaust mould structure |
| CN112976494A (en) * | 2021-02-11 | 2021-06-18 | 徐朝应 | Injection mold convenient for demolding |
| CN113059766A (en) * | 2021-04-08 | 2021-07-02 | 广东科尔技术发展有限公司 | Structure and method for solving problem of vacuum adhesion of product to mold |
| CN113771308A (en) * | 2021-08-25 | 2021-12-10 | 浙江凯华模具有限公司 | Exhaust structure of injection mold |
-
2014
- 2014-05-30 CN CN201420285752.2U patent/CN203994539U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235129A (en) * | 2015-11-03 | 2016-01-13 | 东莞市誉铭新精密技术股份有限公司 | Injection mold for sheet formation |
| CN105235129B (en) * | 2015-11-03 | 2018-06-01 | 东莞市誉铭新精密技术股份有限公司 | Sheet forming injection mold |
| CN108437356A (en) * | 2018-03-13 | 2018-08-24 | 苏州精锐精密机械有限公司 | Injection mold |
| CN108437356B (en) * | 2018-03-13 | 2024-03-08 | 苏州精锐精密机械有限公司 | Injection mold |
| CN108247916A (en) * | 2018-03-27 | 2018-07-06 | 山东豪迈机械科技股份有限公司 | Crawler belt sulfurizing mould |
| CN108773059A (en) * | 2018-07-27 | 2018-11-09 | 东莞市源冠塑胶模具有限公司 | A kind of mold for sheet forming setting process |
| CN108773059B (en) * | 2018-07-27 | 2023-11-21 | 东莞市源冠科技有限公司 | Die for sheet forming and shaping process |
| CN111531757A (en) * | 2020-05-28 | 2020-08-14 | 广东铭利达科技有限公司 | Mould exhaust structure |
| CN111546586A (en) * | 2020-05-28 | 2020-08-18 | 广东铭利达科技有限公司 | Exhaust mould structure |
| CN112976494A (en) * | 2021-02-11 | 2021-06-18 | 徐朝应 | Injection mold convenient for demolding |
| CN113059766A (en) * | 2021-04-08 | 2021-07-02 | 广东科尔技术发展有限公司 | Structure and method for solving problem of vacuum adhesion of product to mold |
| CN113771308A (en) * | 2021-08-25 | 2021-12-10 | 浙江凯华模具有限公司 | Exhaust structure of injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tangxia Shitan Po Jiang Yuan Road 523717 Guangdong city of Dongguan province No. 189 Patentee after: DONGGUAN GOOD MARK NEW PRECISION TECHNOLOGY CO., LTD. Address before: Tangxia Shitan Po Jiang Yuan Road 523717 Guangdong city of Dongguan province No. 189 Patentee before: Dongguan Good Mark New Industrial Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170530 |
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| CF01 | Termination of patent right due to non-payment of annual fee |