JPH01137215U - - Google Patents
Info
- Publication number
- JPH01137215U JPH01137215U JP3088388U JP3088388U JPH01137215U JP H01137215 U JPH01137215 U JP H01137215U JP 3088388 U JP3088388 U JP 3088388U JP 3088388 U JP3088388 U JP 3088388U JP H01137215 U JPH01137215 U JP H01137215U
- Authority
- JP
- Japan
- Prior art keywords
- screw
- head portion
- screw head
- outer periphery
- inner hole
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims 2
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第１図は本考案の一実施例を示す要部正面図で
あり、第２図は第１図の部分拡大図である。
４：加熱筒、６：スクリユ、７：スクリユヘツ
ド部、９：シリンダヘツド、２０：隙間、α：ス
クリユヘツド部の頂角、β：シリンダヘツド内孔
の頂角。
FIG. 1 is a front view of essential parts showing an embodiment of the present invention, and FIG. 2 is a partially enlarged view of FIG. 1. 4: heating cylinder, 6: screw, 7: screw head, 9: cylinder head, 20: gap, α: vertical angle of screw head, β: vertical angle of cylinder head inner hole.
Claims (1)
し、該スクリユの先端部には外周が円錐状のスク
リユヘツド部を設け、前記加熱筒の先端部には該
スクリユヘツド部と対向する位置に円錐状に縮径
する内孔を有するシリンダヘツドを設けた射出成
形機において、前記スクリユの前進限度位置にお
いてスクリユヘツド部の外周とシリンダヘツドの
内孔との間に僅かな隙間を設けるとともに前記外
周が円錐状に縮径するスクリユヘツド部の頂角を
前記円錐状に縮径するシリンダヘツドの内孔の頂
角より大きな角度としたことを特徴とする射出成
形機。 A screw is inserted into the heating cylinder so as to be rotatable and reciprocating, a screw head portion having a conical outer periphery is provided at the tip of the screw, and a screw head portion having a conical shape is provided at the tip of the heating cylinder at a position opposite to the screw head portion. In an injection molding machine equipped with a cylinder head having an inner hole whose diameter is reduced to a diameter, a slight gap is provided between the outer periphery of the screw head portion and the inner hole of the cylinder head at the advance limit position of the screw, and the outer periphery is conical. An injection molding machine characterized in that the apex angle of the screw head portion whose diameter is reduced in a conical shape is larger than the apex angle of the inner hole of the cylinder head whose diameter is reduced into a conical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3088388U JPH01137215U (en) | 1988-03-08 | 1988-03-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3088388U JPH01137215U (en) | 1988-03-08 | 1988-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01137215U true JPH01137215U (en) | 1989-09-20 |
Family
ID=31256324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3088388U Pending JPH01137215U (en) | 1988-03-08 | 1988-03-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01137215U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6233619A (en) * | 1985-08-08 | 1987-02-13 | Toshiba Mach Co Ltd | Plasticizing device for injection molding machine |
-
1988
- 1988-03-08 JP JP3088388U patent/JPH01137215U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6233619A (en) * | 1985-08-08 | 1987-02-13 | Toshiba Mach Co Ltd | Plasticizing device for injection molding machine |