CN207077715U - A kind of exhaust structure of injection mold - Google Patents
A kind of exhaust structure of injection mold Download PDFInfo
- Publication number
- CN207077715U CN207077715U CN201721057028.4U CN201721057028U CN207077715U CN 207077715 U CN207077715 U CN 207077715U CN 201721057028 U CN201721057028 U CN 201721057028U CN 207077715 U CN207077715 U CN 207077715U
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- Prior art keywords
- flash
- cave
- injection mold
- air discharge
- discharge duct
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Abstract
The utility model discloses a kind of exhaust structure of injection mold.Need to be provided with the flash cave connected with die cavity at exhaust on the injection mold, the flash cave also connects with air discharge duct, and the air discharge duct connection is extraneous, and the depth of the air discharge duct is no more than the overflow edge value of plastics used in the injection mold.The plastics that gas is melted when being so molded rush to flash cave, and discharged by air discharge duct, even due to be vented it is not smooth caused by burn, fill the parts of plastics that the defects of bad, cosmetic injury, bubble, dimensional discrepancy also only occurs in filling flash cave, without influenceing real product.After the flash bag for forming plastics in flash cave after the completion of injection removes, with regard to intact product can be obtained.
Description
Technical field
It the utility model is related to injection mold field, and in particular to a kind of exhaust structure of injection mold.
Background technology
Largely plastic products are used in the life of people.Most plastic products are produced by injection mold
's.It is more or less due to contained humidity in the air in die cavity, plastic raw materials in the die cavity of injection mold in injection moulding process
Evaporate at high temperature or the reasons such as plastics decompose at high temperature cause in die cavity with the presence of gas.If these gases can not be suitable
Smooth discharge, it will result in and burn, fill the defects of bad, cosmetic injury, bubble, filamentary silver, weld bond, dimensional discrepancy.Therefore,
The problem of exhaust must take into consideration as mold design.
The conventional solution method of injection mold is typically by adjusting molding proces s parameters at present, such as increase injection pressure,
Extend dwell time etc. to mitigate product defects degree, but such mode can not only reduce production efficiency, increase energy consumption, to mould
The tool life-span also has an impact, but also can cause constantly to adjust molding proces s parameters due to the change of feed material plastics.It is another normal
The solution method seen be die joint and injection end processing air discharge duct, depth just to be defined no more than plastics overflow edge value, but this
The mode of sample can not obtain good result completely on some products.
Utility model content
To overcome above-mentioned technical problem, the utility model is achieved through the following technical solutions：A kind of injection mold exhaust knot
Structure, need on the injection mold to be provided with the flash cave connected with die cavity at exhaust, the flash cave also connects with air discharge duct, institute
It is extraneous to state air discharge duct connection, the depth of the air discharge duct is no more than the overflow edge value of plastics used in the injection mold.
Preferably, the flash cave connects the die cavity by connecting portion, the interconnecting part is gradually received to the die cavity
Hold together.So fill and connected between the flash bag of the plastics formation in flash cave and real product by the part of a weakening, so as to
So that flash bag is easier to separate with real product.
Preferably, the demoulding gradient in the flash cave is more than 50 °.So it is easy to the plastics for filling flash cave to be formed excessive
The material bag demoulding, it is not easy to flash bag occurs be bonded on mould not being stripped and influence to produce.
Compared with prior art, the utility model has advantages below：The utility model on injection mold by needing
The flash cave connected with die cavity is set at exhaust, and the flash cave also connects with air discharge duct, and the air discharge duct connection is extraneous, described
The depth of air discharge duct is no more than the overflow edge value of plastics used in the injection mold.The plastics that gas is melted when being so molded
Flash cave is rushed to, and is discharged by air discharge duct, even being burnt because exhaust is not freely caused, filling bad, cosmetic injury, gas
The defects of bubble, dimensional discrepancy, also only occurs in the parts of plastics in filling flash cave, without influenceing real product.It is being molded
After the completion of by flash cave plastics formed flash bag remove after, with regard to intact product can be obtained.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model embodiment.
Fig. 2 is Tu1Zhong A areas enlarged drawing.
Embodiment
Below in conjunction with the accompanying drawings with embodiment, the utility model is further described, as shown in Figure 1 to Figure 2, one
Exhaust structure of injection mold is planted, needs to be provided with the flash cave 1 connected with die cavity, the flash cave at exhaust on the injection mold
1 connects the die cavity by connecting portion 3, and the interconnecting part 3 gradually collapses to the die cavity, the demoulding gradient in the flash cave 1
More than 50 °, the flash cave 1 also connects with air discharge duct 2, and the air discharge duct 2 connects the external world, and the depth of the air discharge duct 2 does not surpass
Cross the overflow edge value of plastics that the injection mold makes to have.
The plastics that gas is melted during injection rush to flash cave, and are discharged by air discharge duct, plastics are filled up in flash cave, i.e.,
Make be due to exhaust it is not smooth caused by burn, fill the defects of bad, cosmetic injury, bubble, dimensional discrepancy and also only occur in
The parts of plastics in flash cave is filled, without influenceing real product.Overflow after the completion of injection by what plastics in flash cave were formed
After material bag removes, with regard to intact product can be obtained.
The scope of protection of the utility model includes but is not limited to embodiment of above, and the scope of protection of the utility model is to weigh
Sharp claim is defined, and any replacement being readily apparent that to those skilled in the art that this technology is made, deformation, improvement are each fallen within
The scope of protection of the utility model.
Claims (3)
- A kind of 1. exhaust structure of injection mold, it is characterised in that needed on the injection mold at exhaust be provided with connected with die cavity Flash cave（1）, the flash cave（1）Also with air discharge duct（2）Connection, the air discharge duct（2）Connection is extraneous, the air discharge duct （2）Depth be no more than plastics used in the injection mold overflow edge value.
- A kind of 2. exhaust structure of injection mold according to claim 1, it is characterised in that the flash cave（1）Pass through connection Portion（3）Connect the die cavity, the interconnecting part（3）Gradually collapsed to the die cavity.
- A kind of 3. exhaust structure of injection mold according to claim 1 or claim 2, it is characterised in that the flash cave（1）Demoulding Gradient is more than 50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721057028.4U CN207077715U (en) | 2017-08-23 | 2017-08-23 | A kind of exhaust structure of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721057028.4U CN207077715U (en) | 2017-08-23 | 2017-08-23 | A kind of exhaust structure of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207077715U true CN207077715U (en) | 2018-03-09 |
Family
ID=61420856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721057028.4U Active CN207077715U (en) | 2017-08-23 | 2017-08-23 | A kind of exhaust structure of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207077715U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113746290A (en) * | 2021-08-26 | 2021-12-03 | 重庆凯邦电机有限公司 | Outgoing line sheath, stator and motor |
| CN115958178A (en) * | 2023-01-12 | 2023-04-14 | 浙江赛豪实业有限公司 | Mold flash exhaust structure |
-
2017
- 2017-08-23 CN CN201721057028.4U patent/CN207077715U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113746290A (en) * | 2021-08-26 | 2021-12-03 | 重庆凯邦电机有限公司 | Outgoing line sheath, stator and motor |
| CN115958178A (en) * | 2023-01-12 | 2023-04-14 | 浙江赛豪实业有限公司 | Mold flash exhaust structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181107 Address after: 430200 No. 18 Chevrolet Avenue, Jingang New District, Jiangxia District, Wuhan City, Hubei Province Patentee after: WUHAN JOYSON AUTO PARTS CO., LTD. Address before: 315103 No. 1266 Juxian Road, Ningbo High-tech Zone, Zhejiang Province Patentee before: Ningbo Joyson Automotive Components Co., Ltd. |
|
| TR01 | Transfer of patent right |