CN202727279U - Ejector pin of mould - Google Patents
Ejector pin of mould Download PDFInfo
- Publication number
- CN202727279U CN202727279U CN 201220346916 CN201220346916U CN202727279U CN 202727279 U CN202727279 U CN 202727279U CN 201220346916 CN201220346916 CN 201220346916 CN 201220346916 U CN201220346916 U CN 201220346916U CN 202727279 U CN202727279 U CN 202727279U
- Authority
- CN
- China
- Prior art keywords
- ejector pin
- pin rod
- end portion
- thimble rod
- mould
- 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 ejector pin of a mould. The ejector pin comprises an ejector pin rod and a base which is arranged at the bottom end portion of the ejector pin rod. The ejector pin rod is in a cone shape. The diameter of the ejector pin rod gradually increases from the bottom end portion to the upper end portion. The outer periphery of the upper end portion of the ejector pin rod is provided with a wear-resisting layer. Compared with the prior art, the ejector pin rod is in a cone shape. In the using process, the wear-resisting layer arranged on the outer surface of the upper end portion contacts with the inner wall of a guide hole of the mould and other positions all can not contact with the inner wall of the guide hole so that friction between the ejector pin rod and the inner of the guide hole is reduced, and the service life of the ejector pin rod is prolonged. Moreover, the phenomenon that the ejector pin rod gets stuck since the inner wall of the guide role is scratched is avoided.
Description
Technical field
The utility model relates to the injection mold technical field, is specifically related to the die ejector pin that a kind of injection mold is used.
Background technology
Usually up and down die ejector pin to be installed in the injection mold, when sizing material in die cavity, solidify finish after, utilize transmission mechanism to drive thimble and move upward, the sizing material of moulding is ejected from die cavity, be knockout course.
Generally, need to offer at counterdie the pilot hole of a through die cavity, thimble is inserted in the pilot hole, in thimble moved up and down process, the interior wall friction of the unavoidable and pilot hole of thimble scratched the inwall of pilot hole, when serious, thimble stuck phenomenon can occur in pilot hole.
The utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of die ejector pin, and it can reduce the friction of thimble and pilot hole inwall.
For achieving the above object, the utility model adopts following technical scheme:
Die ejector pin, the base that comprises thimble rod and be positioned at the thimble rod bottom, thimble rod is taper, and its diameter is increased to its upper end gradually by its bottom, and the upper end outer peripheral edges of thimble rod are provided with wearing layer.
The diameter of base also is provided with a plurality of ribs greater than the diameter of thimble rod bottom between base upper surface and the thimble rod bottom outer surface.
The beneficial effects of the utility model are:
Than prior art, in the utility model, thimble rod is taper, in use, the wearing layer of its upper-end outer surface contacts with the pilot hole inwall of mould, and other positions all can not contact with the pilot hole inwall, has reduced the friction with the pilot hole inwall, increase the service life of thimble rod, avoided simultaneously scratch pilot hole inwall and the stuck phenomenon that occurs.
Description of drawings
Fig. 1 is the structural representation of the utility model die ejector pin.
The specific embodiment
Below, by reference to the accompanying drawings and the specific embodiment, the utility model is described further:
As shown in Figure 1, be a kind of die ejector pin of the utility model, the base 2 that it comprises thimble rod 1 and is positioned at thimble rod 1 bottom, thimble rod 1 is a cone structure, its diameter is increased between its upper end by its bottom, and the upper end outer peripheral edges of thimble rod 1 are provided with wearing layer, when thimble moves up and down along the mould pilot hole, only have the inwall contact friction of wearing layer and the pilot hole of thimble rod 1 upper end outer peripheral edges, thimble rod 1 other positions all do not contact with the inwall of pilot hole.
Because the position that thimble rod 1 bottom is connected with base 2 has less diameter, and the diameter of base 2 is greater than the diameter of thimble rod 1 bottom, in order to guarantee its intensity, between base 2 upper surfaces and thimble rod 1 bottom outer surface, also be provided with a plurality of ribs 3.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion should belong within the protection domain of the utility model claim all.
Claims (2)
1. die ejector pin is characterized in that, the base that comprises thimble rod and be positioned at the thimble rod bottom, and thimble rod is taper, and its diameter is increased to its upper end gradually by its bottom, and the upper end outer peripheral edges of thimble rod are provided with wearing layer.
2. die ejector pin as claimed in claim 1 is characterized in that, the diameter of base also is provided with a plurality of ribs greater than the diameter of thimble rod bottom between base upper surface and the thimble rod bottom outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220346916 CN202727279U (en) | 2012-07-17 | 2012-07-17 | Ejector pin of mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220346916 CN202727279U (en) | 2012-07-17 | 2012-07-17 | Ejector pin of mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202727279U true CN202727279U (en) | 2013-02-13 |
Family
ID=47653020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220346916 Expired - Fee Related CN202727279U (en) | 2012-07-17 | 2012-07-17 | Ejector pin of mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202727279U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358436A (en) * | 2013-08-02 | 2013-10-23 | 昆山科海模具有限公司 | Improved mold ejector pin structure |
| 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 |
| CN104085060A (en) * | 2014-07-24 | 2014-10-08 | 常熟市金马模具有限公司 | Practical mold ejector pin |
-
2012
- 2012-07-17 CN CN 201220346916 patent/CN202727279U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358436A (en) * | 2013-08-02 | 2013-10-23 | 昆山科海模具有限公司 | Improved mold ejector pin structure |
| 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 |
| CN104085060A (en) * | 2014-07-24 | 2014-10-08 | 常熟市金马模具有限公司 | Practical mold ejector pin |
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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: 20130213 Termination date: 20180717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |