JPH0440920U - - Google Patents
Info
- Publication number
- JPH0440920U JPH0440920U JP1990083731U JP8373190U JPH0440920U JP H0440920 U JPH0440920 U JP H0440920U JP 1990083731 U JP1990083731 U JP 1990083731U JP 8373190 U JP8373190 U JP 8373190U JP H0440920 U JPH0440920 U JP H0440920U
- Authority
- JP
- Japan
- Prior art keywords
- die hole
- outer circumferential
- counter punch
- annular
- inner circumferential
- 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
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 1
Landscapes
- Forging (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
第１図は本考案の実施例を示す縦断面図、第２
図および第３図はその作動工程を示す縦断面図、
第４図は従来例を示す縦断面図である。
１０……ダイス、１１……圧力板、１２……ダ
イ孔、１２ａ……素材投入部、１２ｂ……成形部
、１２ｃ……ガイド部、１３ａ，１３ｂ，１４ａ
，１４ｂ……内周突起、１５……カウンタパンチ
、１５ａ，１５ｂ，１５ｃ……外周突起、１６…
…ノツクアウトリング、１６ａ，１６ｂ……厚肉
部、１７……パンチ、１７ａ……第１パンチ、１
７ｂ……第２パンチ、１８……押出しロツド、２
０……素材、２０ａ……塑性流動部、２０ｂ……
下端、２０ｃ……嵌合部。
Fig. 1 is a vertical sectional view showing an embodiment of the present invention;
Figures 3 and 3 are longitudinal sectional views showing the operating process;
FIG. 4 is a longitudinal sectional view showing a conventional example. 10...Die, 11...Pressure plate, 12...Die hole, 12a...Material input part, 12b...Forming part, 12c...Guide part, 13a, 13b, 14a
, 14b...Inner circumference protrusion, 15...Counter punch, 15a, 15b, 15c...Outer circumference protrusion, 16...
... Knockout ring, 16a, 16b ... Thick wall part, 17 ... Punch, 17a ... First punch, 1
7b...Second punch, 18...Extrusion rod, 2
0...Material, 20a...Plastic flow part, 20b...
Lower end, 20c...fitting part.
Claims (1)
軸心部にカウンタパンチを起立固定し、ダイ孔と
カウンタパンチとの隙間部に筒状のノツクアウト
リングを上下動可能に設け、パンチをダイスの上
方からダイ孔に打ち込むことによりダイ孔の上部
に嵌合した素材を、ノツクアウトリングを下方に
移動させつつダイ孔とカウンタパンチとの隙間部
に塑性流動させてなる押出し成形用金型装置にお
いて、ダイ孔に軸心方向に突出する環状の内周突
起を、カウンタパンチに半径方向外方に突出する
環状の外周突起をそれぞれ互いに対応させて上下
に所定の間隔をおいて複数個形成し、ノツクアウ
トリングに軸心方向および半径方向外方に突出す
る環状の厚肉部を前記内周突起および外周突起と
略対応する間隔で上下に複数個形成するとともに
、該厚肉部はその内周面と外周面とが前記内周突
起と外周突起とに圧接する寸法に形成したことを
特徴とする押出し成形用金型装置。 A vertical die hole is formed in the die, a counter punch is fixed upright at the axis of the die hole, and a cylindrical knockout ring is provided in the gap between the die hole and the counter punch so as to be movable up and down. An extrusion mold made by driving the material into the die hole from above and causing it to plastically flow into the gap between the die hole and the counter punch while moving the knockout ring downward. In the device, a plurality of annular inner circumferential protrusions protruding in the axial direction in the die hole and a plurality of annular outer circumferential protrusions protruding radially outward in the counter punch are formed in correspondence with each other at predetermined intervals vertically. The knockout ring is provided with a plurality of annular thick-walled parts projecting outward in the axial and radial directions at intervals substantially corresponding to the inner and outer circumferential protrusions, and the thick-walled parts are A mold device for extrusion molding, characterized in that an inner circumferential surface and an outer circumferential surface are formed in dimensions such that they come into pressure contact with the inner circumferential protrusion and the outer circumferential protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990083731U JPH072111Y2 (en) | 1990-08-07 | 1990-08-07 | Extrusion mold equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990083731U JPH072111Y2 (en) | 1990-08-07 | 1990-08-07 | Extrusion mold equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0440920U true JPH0440920U (en) | 1992-04-07 |
| JPH072111Y2 JPH072111Y2 (en) | 1995-01-25 |
Family
ID=31631643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990083731U Expired - Lifetime JPH072111Y2 (en) | 1990-08-07 | 1990-08-07 | Extrusion mold equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH072111Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004122176A (en) * | 2002-10-02 | 2004-04-22 | Kiyoshi Anami | Method and apparatus for backward extrusion |
-
1990
- 1990-08-07 JP JP1990083731U patent/JPH072111Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004122176A (en) * | 2002-10-02 | 2004-04-22 | Kiyoshi Anami | Method and apparatus for backward extrusion |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH072111Y2 (en) | 1995-01-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |