JPS61158405U - - Google Patents
Info
- Publication number
- JPS61158405U JPS61158405U JP4147285U JP4147285U JPS61158405U JP S61158405 U JPS61158405 U JP S61158405U JP 4147285 U JP4147285 U JP 4147285U JP 4147285 U JP4147285 U JP 4147285U JP S61158405 U JPS61158405 U JP S61158405U
- Authority
- JP
- Japan
- Prior art keywords
- ejector pin
- cavity
- ejector
- diameter
- mold
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 description 1
Landscapes
- Producing Shaped Articles From Materials (AREA)
Description
第１図は本考案のセラミツク射出成形型の射出
時のエジエクタ機構の断面図、第２図は第１図Ａ
部の拡大図、第３図は成形品押出時の同断面図、
第４図は従来のセラミツク射出成形型の射出時の
エジエクタ機構の断面図、第５図は従来の成形品
押出時の同断面図てある。
１……エジエクタピン、１ｂ……先端小径部、
２ａ……穴、３……キヤビテイ、４……金型、５
……空気抜き穴、１０……成形品。
Figure 1 is a sectional view of the ejector mechanism during injection of the ceramic injection mold of the present invention, and Figure 2 is Figure 1A.
Figure 3 is a cross-sectional view of the same part when extruding the molded product.
FIG. 4 is a sectional view of the ejector mechanism of a conventional ceramic injection mold during injection, and FIG. 5 is the same sectional view during extrusion of a conventional molded product. 1...Ejecta pin, 1b...Tip small diameter part,
2a... Hole, 3... Cavity, 4... Mold, 5
...Air vent hole, 10...Molded product.
Claims (1)
通する穴に嵌合するエジエクタピンをキヤビテイ
側に押し出すことによりキヤビテイ内のセラミツ
ク成形品を金型より取外すエジエクタ機構におい
て、前記エジエクタピンをキヤビテイ側先端部が
径の小さくなつた段付軸で構成し、該先端小径部
の側部よりエジエクタピン内部を貫通し型外部へ
抜ける空気抜き穴を設け、かつ該エジエクタピン
の押出ストロークを前記小径先端部の軸方向の距
離以上としたことを特徴とするセラミツク成形型
のエジエクタ機構。 ２ キヤビテイに連通する穴の径をＤ、該穴に嵌
合するエジエクタピンの径をｄ１、該エジエクタ
ピンの先端小径部の径をｄ２とした場合、 Ｄ−ｄ１２＝０．００１〜０．００４mm，Ｄ−
ｄ１２＝０．００５〜０．０３mmである実用新案
登録請求の範囲第１項記載の機構。[Claims for Utility Model Registration] 1. In an ejector mechanism for removing a ceramic molded product in a cavity from a mold by pushing an ejector pin fitted into a hole communicating with a cavity of a ceramic injection mold toward the cavity side, the ejector pin is composed of a stepped shaft with a smaller diameter tip on the cavity side, and an air vent hole is provided from the side of the small diameter portion of the tip to pass through the inside of the ejector pin and escape to the outside of the mold, and the ejector stroke of the ejector pin is adjusted to the same diameter as the small diameter tip. An ejector mechanism for a ceramic mold, characterized in that the distance is greater than or equal to the distance in the axial direction of the parts. 2 If the diameter of the hole communicating with the cavity is D, the diameter of the ejector pin that fits into the hole is d1 , and the diameter of the small diameter portion of the ejector pin is d2 , then D- d12 =0.001~0 .004mm, D-
The mechanism according to claim 1, wherein d 1 2 = 0.005 to 0.03 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4147285U JPH031222Y2 (en) | 1985-03-25 | 1985-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4147285U JPH031222Y2 (en) | 1985-03-25 | 1985-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61158405U true JPS61158405U (en) | 1986-10-01 |
| JPH031222Y2 JPH031222Y2 (en) | 1991-01-16 |
Family
ID=30551328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4147285U Expired JPH031222Y2 (en) | 1985-03-25 | 1985-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH031222Y2 (en) |
-
1985
- 1985-03-25 JP JP4147285U patent/JPH031222Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH031222Y2 (en) | 1991-01-16 |