CN202029348U - Improved structure of novel injection mold ejector rod - Google Patents
Improved structure of novel injection mold ejector rod Download PDFInfo
- Publication number
- CN202029348U CN202029348U CN2011200183555U CN201120018355U CN202029348U CN 202029348 U CN202029348 U CN 202029348U CN 2011200183555 U CN2011200183555 U CN 2011200183555U CN 201120018355 U CN201120018355 U CN 201120018355U CN 202029348 U CN202029348 U CN 202029348U
- Authority
- CN
- China
- Prior art keywords
- boss
- ejector rod
- push rod
- waste material
- runner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses an improved structure of a novel injection mold ejector rod. A boss is upwardly projected along the longitudinal direction from the center of the top ejecting surface of the ejector rod. Since the top surface of the improved structure, which is in contact with an injection-molded part, is provided with the boss, after the injection-molded part is molded, the boss of the top of the ejector rod can be wrapped by a waste material in a main runner, the contact area between the boss and the waste material in the runner is enlarged, the bonding between the boss and the waste material is firm, and consequently, when the ejector rod carries out demoulding, the waste material in the runner can be separated from the injection-molded part and stripped out of the runner and a gate.
Description
Technical field
The utility model relates to a kind of mould of plastics, particularly relates to a kind of improvement structure of novel injection mould push rod.
Background technology
After the moulding injection mo(u)lding, moulding is deviate from from mold cavity, mostly need adopt ejecting mechanism that it is ejected.The most frequently used ejecting mechanism is exactly a push rod, the end face 11 ' of the push rod of commonly using 1 ' (as shown in Figure 1), with the contact-making surface of moulding be the plane, the push rod 1 ' that this end face 11 ' is the plane is lower with the conjugation of moulding 10, can not satisfy the needs that some mouldings 10 are extracted out from runner 2 '.
The utility model content
The purpose of this utility model is to provide a kind of improvement structure of the novel injection mould push rod in jail that can combine with moulding.
For achieving the above object, technical solution of the present utility model is:
The utility model is a kind of improvement structure of novel injection mould push rod, at the central authorities of the ejection face on the push rod top boss that longitudinally raises up.
Described boss is a big down little cone boss, and the end face of boss is arc surface or sphere.
After adopting such scheme, owing to end face of the present utility model, be provided with boss with the contact-making surface of moulding, after the moulding moulding, waste material on the sprue can be wrapped on the boss on push rod top, waste material contact-making surface in boss and the runner increases, the jail that combines with waste material makes this push rod when the demoulding, the runner waste material can be separated with moulding and deviate from from runner, cast gate.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 commonly uses push rod structure figure;
Fig. 2 is a structure chart of the present utility model.
The specific embodiment
As shown in Figure 2, the utility model is a kind of improvement structure of novel injection mould push rod, at the central authorities of the ejection face 11 on the push rod 1 top boss 12 that longitudinally raises up.
Described boss 12 is a big down little cone boss, and the end face of boss 12 is arc surface or sphere.
Emphasis of the present utility model just is: the end face at push rod is provided with boss.
The above, it only is the utility model preferred embodiment, the shape of push rod boss can have multiple, as square, trapezoidal etc., so can not limit the scope that the utility model is implemented with this, the i.e. equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (2)
1. the improvement structure of a novel injection mould push rod is characterized in that: at the central authorities of the ejection face on the push rod top boss that longitudinally raises up.
2. the improvement structure of novel injection mould push rod according to claim 1 is characterized in that: described boss is a big down little cone boss, and the end face of boss is arc surface or sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200183555U CN202029348U (en) | 2011-01-20 | 2011-01-20 | Improved structure of novel injection mold ejector rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200183555U CN202029348U (en) | 2011-01-20 | 2011-01-20 | Improved structure of novel injection mold ejector rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202029348U true CN202029348U (en) | 2011-11-09 |
Family
ID=44891658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200183555U Expired - Fee Related CN202029348U (en) | 2011-01-20 | 2011-01-20 | Improved structure of novel injection mold ejector rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202029348U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407046A (en) * | 2013-08-16 | 2013-11-27 | 昆山西诺巴精密模具有限公司 | Improved mold ejector pin |
| CN103934418A (en) * | 2014-05-07 | 2014-07-23 | 广西玉柴机器股份有限公司 | Device for ejecting small sand core and method for making small sand core |
-
2011
- 2011-01-20 CN CN2011200183555U patent/CN202029348U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407046A (en) * | 2013-08-16 | 2013-11-27 | 昆山西诺巴精密模具有限公司 | Improved mold ejector pin |
| CN103934418A (en) * | 2014-05-07 | 2014-07-23 | 广西玉柴机器股份有限公司 | Device for ejecting small sand core and method for making small sand core |
| CN103934418B (en) * | 2014-05-07 | 2016-02-24 | 广西玉柴机器股份有限公司 | A kind of core ejecting device of tiny core and core-making method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XIAMEN XINDONGLONG PLASTIC PRODUCTS CO., LTD. Free format text: FORMER OWNER: XIAMEN DALAI ELECTRONICS TECHNOLOGY CO., LTD. Effective date: 20111115 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lin Chuangui Inventor before: Xu Yongbing |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XU YONGBING TO: LIN ZHUANGUI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111115 Address after: Jinyuan two West Road Jimei City Xinglin Central District of Xiamen City, Fujian province 361000 No. 288 plant floor Patentee after: Xiamen Xindonglong Plastic Products Co., Ltd. Address before: Xinglin Jinyuan west two road 361000 Fujian city of Xiamen Province, No. 288 Patentee before: Xiamen Dalai Electronic Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20140120 |