JPH0433523U - - Google Patents

Info

Publication number
JPH0433523U
JPH0433523U JP7416890U JP7416890U JPH0433523U JP H0433523 U JPH0433523 U JP H0433523U JP 7416890 U JP7416890 U JP 7416890U JP 7416890 U JP7416890 U JP 7416890U JP H0433523 U JPH0433523 U JP H0433523U
Authority
JP
Japan
Prior art keywords
screw
check valve
tip
molding machine
injection molding
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
JP7416890U
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 JP7416890U priority Critical patent/JPH0433523U/ja
Publication of JPH0433523U publication Critical patent/JPH0433523U/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図は本考案の第1実施例に係る逆止弁の側
面図、第2図は逆止弁の溝形状の異なる実施例を
示す断面図、第3図は逆止弁の溝形状の更に異な
る実施例を示す断面図、第4図は本考案の他の実
施例に係る逆止弁の側面図、第5図は従来の逆止
弁を示す側断面図である。 図の主要部分の説明、2……スクリユ、2′…
…小径部、7,7a,7b,7c……螺旋溝、8
……逆止弁、8′……突起。

Claims (1)

    【実用新案登録請求の範囲】
  1. 射出成形機用スクリユの先端に設けられ、射出
    時に溶融樹脂の逆流を防止する逆止弁において、
    スクリユ先端の小径部に嵌合されると共に、同ス
    クリユと同一回転するよう同スクリユに係合する
    突起を有し、かつ外周にスクリユと同じ方向のね
    じれ角を持つた浅く、かつピツチの細かい螺旋溝
    を設けてなることを特徴とする射出成形機用スク
    リユの逆止弁。
JP7416890U 1990-07-12 1990-07-12 Pending JPH0433523U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7416890U JPH0433523U (ja) 1990-07-12 1990-07-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7416890U JPH0433523U (ja) 1990-07-12 1990-07-12

Publications (1)

Publication Number Publication Date
JPH0433523U true JPH0433523U (ja) 1992-03-18

Family

ID=31613631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7416890U Pending JPH0433523U (ja) 1990-07-12 1990-07-12

Country Status (1)

Country Link
JP (1) JPH0433523U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0558251U (ja) * 1992-01-16 1993-08-03 川口鉄工株式会社 射出成形機の逆流防止リング

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0558251U (ja) * 1992-01-16 1993-08-03 川口鉄工株式会社 射出成形機の逆流防止リング

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