CN203680747U - Insert structure for plastic injection mold - Google Patents
Insert structure for plastic injection mold Download PDFInfo
- Publication number
- CN203680747U CN203680747U CN201420085855.4U CN201420085855U CN203680747U CN 203680747 U CN203680747 U CN 203680747U CN 201420085855 U CN201420085855 U CN 201420085855U CN 203680747 U CN203680747 U CN 203680747U
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- China
- Prior art keywords
- discharge duct
- air discharge
- depth
- insert
- air slot
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- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an insert structure for a plastic injection mold. The insert structure comprises an insert body, wherein the insert body is provided with an air guiding vent close to the surface of the side wall of one end of a pouring port, one end of the air guiding vent, away from the pouring port, is provided with a buffering air discharge duct, the width and the depth of the buffering air discharge duct are more than those of the air guiding vent respectively, one end of the buffering air discharge duct, away from the pouring port, is provided with a final air discharge duct, and the depth of the final air discharge duct is not less than that of the buffering air discharge duct. The insert structure has simple structure design, is easy to manufacture, skillfully solves the problem of poor venting effect of the plastic mold, prevents the phenomena that the plastic product is burned and the filling is not enough, can ensure the contact area of the mold parting surface, can be used for reducing the injection pressure, the injection time and the mold locking pressure, improving the forming efficiency and reducing the production cost, and is convenient for promotion and application widely.
Description
Technical field
The utility model relates to plastic moulds technology field, is specifically related to a kind of insert structure for plastics injection mould.
Background technology
At present, the mould of plastics of traditional plastic products, in injection moulding production process, often there will be the situations such as product burn, insufficient fill, weld mark, and when the main cause that produces this phenomenon is injection moulding, exhaust is bad.And for this situation, carry out exhaust by the fit clearance between mold insert itself and die with improvement process merely and cannot reach satisfied effect.Find that through research working of plastics product burn, insufficient fill, weld mark etc. in injection moulding process are that die venting is bad and cause, a great problem how exhaust is plastics injection mould.
Summary of the invention
Technical problem to be solved in the utility model is to provide one and is convenient to air scavenge in mold cavity, the insert structure for plastics injection mould of product burn, insufficient fill problem while avoiding injection moulding.
For solving the problems of the technologies described above, the technical solution of the utility model is: for the insert structure of plastics injection mould, comprise insert body, described insert body is provided with air slot near one end sidewall surfaces at sprue gate, one end of described air slot remote pouring mouth is provided with buffering exhaust groove, the width of described buffering exhaust groove and the degree of depth are greater than respectively width and the degree of depth of described air slot, one end of described buffering exhaust groove remote pouring mouth is provided with whole air discharge duct, and the degree of depth of described whole air discharge duct is not less than the degree of depth of described buffering exhaust groove.
The degree of depth of the described air slot as required overflow edge value of the plastic product material of injection moulding is determined, and its depth design is less than the overflow edge value of plastic material.
As preferred technical scheme, the width of described air slot is 4～10mm.
As the improvement to technique scheme, the distance of the openend of described air slot and described insert body plastic rubber surface is 0.5～2mm.
As the further improvement to technique scheme, the cross sectional shape of described air slot is rectangle or trapezoidal.
The utility model is by adopting technique scheme, there is following beneficial effect: the air slot, buffering exhaust groove and the whole air discharge duct that set gradually by mold insert surface, unnecessary air scavenge in the mold cavity sealing not only can be by injection moulding time, the situation that the exhaust of ingenious solution mould of plastics is bad, avoid the appearance of plastic product burn, insufficient fill phenomenon, eliminate the various defects of goods, and can guarantee mold parting surface contact area simultaneously, reduce injection pressure, inject time and locked mode pressure, improve shaping efficiency, reduce production costs.The utility model structural design is simple, makes easily, is convenient to wide popularization and application.
accompanying drawing explanation
The following drawings is only intended to the utility model to schematically illustrate and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the structural representation of the utility model embodiment mono-;
Fig. 2 is the structural representation of the utility model embodiment bis-.
1-insert body; 2-air slot; 3-buffering exhaust groove; The whole air discharge duct of 4-; 5-plastic rubber surface.
The specific embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.
embodiment mono-:
As shown in Figure 1, for the insert structure of plastics injection mould, comprise insert body 1, described insert body 1 is provided with air slot 2 near one end sidewall surfaces at sprue gate, one end of described air slot 2 remote pouring mouths is provided with buffering exhaust groove 3, the width of described buffering exhaust groove 3 and the degree of depth are greater than respectively width and the degree of depth of described air slot 2, and one end of described buffering exhaust groove 3 remote pouring mouths is provided with whole air discharge duct 4, and the degree of depth of described whole air discharge duct 4 is greater than the degree of depth of described buffering exhaust groove 3.The width of described air slot 2 is 4mm, with plastic rubber surface 5 distance be 0.5mm.The cross sectional shape of described air slot 2 is rectangle, also can be arranged to trapezoidal.
When mold-closing injection, unnecessary gas in mold cavity imports described buffering exhaust groove 3 by described air slot 2, finally discharge from whole air discharge duct 4, can both avoid product burn, insufficient fill phenomenon to occur, can guarantee again mold parting surface contact area, and can not produce harmful effect, cause goods other defect.Air slot 2 and plastic rubber surface 5 keep certain sealing distance can play better injection moulding effect.
embodiment bis-:
As shown in Figure 2, for the insert structure of plastics injection mould, comprise insert body 1, described insert body 1 is provided with air slot 2 near one end sidewall surfaces at sprue gate, one end of described air slot 2 remote pouring mouths is provided with buffering exhaust groove 3, the width of described buffering exhaust groove 3 and the degree of depth are greater than respectively width and the degree of depth of described air slot 2, and one end of described buffering exhaust groove 3 remote pouring mouths is provided with whole air discharge duct 4, and the degree of depth of described whole air discharge duct 4 equals the degree of depth of described buffering exhaust groove 3.The width of described air slot 2 is 10mm.The cross sectional shape of described air slot 2 is rectangle.
The foregoing is only the schematic specific embodiment of the utility model, not in order to limit scope of the present utility model.Any those skilled in the art, is not departing from equivalent variations and the modification under the prerequisite of design of the present utility model and principle, done, all should belong to the scope of the utility model protection.
Claims (4)
1. for the insert structure of plastics injection mould, comprise insert body, it is characterized in that: described insert body is provided with air slot near one end sidewall surfaces at sprue gate, one end of described air slot remote pouring mouth is provided with buffering exhaust groove, the width of described buffering exhaust groove and the degree of depth are greater than respectively width and the degree of depth of described air slot, one end of described buffering exhaust groove remote pouring mouth is provided with whole air discharge duct, and the degree of depth of described whole air discharge duct is not less than the degree of depth of described buffering exhaust groove.
2. the insert structure for plastics injection mould as claimed in claim 1, is characterized in that: the width of described air slot is 4～10mm.
3. the insert structure for plastics injection mould as claimed in claim 2, is characterized in that: the distance of the openend of described air slot and described insert body plastic rubber surface is 0.5～2mm.
4. the insert structure for plastics injection mould as described in claim 1,2 or 3, is characterized in that: the cross sectional shape of described air slot is rectangle or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085855.4U CN203680747U (en) | 2014-02-27 | 2014-02-27 | Insert structure for plastic injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085855.4U CN203680747U (en) | 2014-02-27 | 2014-02-27 | Insert structure for plastic injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203680747U true CN203680747U (en) | 2014-07-02 |
Family
ID=51002704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085855.4U Expired - Fee Related CN203680747U (en) | 2014-02-27 | 2014-02-27 | Insert structure for plastic injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203680747U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946187A (en) * | 2016-05-11 | 2016-09-21 | 中山市美捷时包装制品有限公司 | Mold exhausting structure |
| TWI595994B (en) * | 2015-07-24 | 2017-08-21 | Sprue bushing | |
| CN107891585A (en) * | 2017-11-30 | 2018-04-10 | 上海小糸车灯有限公司 | Prevent the method and mould structure of trapped gas at the lamp hole of product in BMC moulds |
-
2014
- 2014-02-27 CN CN201420085855.4U patent/CN203680747U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI595994B (en) * | 2015-07-24 | 2017-08-21 | Sprue bushing | |
| CN105946187A (en) * | 2016-05-11 | 2016-09-21 | 中山市美捷时包装制品有限公司 | Mold exhausting structure |
| CN107891585A (en) * | 2017-11-30 | 2018-04-10 | 上海小糸车灯有限公司 | Prevent the method and mould structure of trapped gas at the lamp hole of product in BMC moulds |
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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 |
Granted publication date: 20140702 Termination date: 20150227 |
|
| EXPY | Termination of patent right or utility model |