JPH03118620U - - Google Patents

Info

Publication number
JPH03118620U
JPH03118620U JP2843590U JP2843590U JPH03118620U JP H03118620 U JPH03118620 U JP H03118620U JP 2843590 U JP2843590 U JP 2843590U JP 2843590 U JP2843590 U JP 2843590U JP H03118620 U JPH03118620 U JP H03118620U
Authority
JP
Japan
Prior art keywords
small diameter
screw
screw head
injection molding
molding machine
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
Application number
JP2843590U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP2843590U priority Critical patent/JPH03118620U/ja
Publication of JPH03118620U publication Critical patent/JPH03118620U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)

Description

【図面の簡単な説明】
第1図は本考案による射出成形機のスクリユウ
先端部の側断面図、第2図は第1図の−矢視
方向断面図、第3図は従来の射出成形機のスクリ
ユウ先端部の側断面図である。 6……加熱筒、7……スクリユ、9……スクリ
ユヘツド、9b……小径部、9c……前側段差面
、9d……溝、9e……テーパ面、10……リン
グバルブ、10a……前端面。

Claims (1)

    【実用新案登録請求の範囲】
  1. 加熱筒内に挿入し回転往復動可能なスクリユの
    先端に螺合したスクリユヘツドの小径部に、加熱
    筒の外周面に摺接させるようリングバルブを遊嵌
    し、前記スクリユヘツドに、前記リングバルブと
    前記小径部との間に形成される間隙を該スクリユ
    ヘツドの前方に連通させるようにした溝を複数設
    け、前記リングバルブを前記小径部に連接する前
    ・後段差面の間で前記スクリユと相対変位させて
    樹脂流路を開閉するようにした射出成形機の逆流
    防止装置において、前記前段差面に接続する前記
    各溝のスクリユ回転方向側となる立壁縁部に、ス
    クリユ回転方向に傾斜するテーパ面を形成したこ
    とを特徴とする射出成形機の逆流防止装置。
JP2843590U 1990-03-20 1990-03-20 Pending JPH03118620U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2843590U JPH03118620U (ja) 1990-03-20 1990-03-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2843590U JPH03118620U (ja) 1990-03-20 1990-03-20

Publications (1)

Publication Number Publication Date
JPH03118620U true JPH03118620U (ja) 1991-12-06

Family

ID=31531238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2843590U Pending JPH03118620U (ja) 1990-03-20 1990-03-20

Country Status (1)

Country Link
JP (1) JPH03118620U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010247432A (ja) * 2009-04-16 2010-11-04 Ube Machinery Corporation Ltd 射出成形機の射出装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010247432A (ja) * 2009-04-16 2010-11-04 Ube Machinery Corporation Ltd 射出成形機の射出装置

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