JPS6062920U - Ring valve mechanism in injection molding machine - Google Patents
Ring valve mechanism in injection molding machineInfo
- Publication number
- JPS6062920U JPS6062920U JP15630283U JP15630283U JPS6062920U JP S6062920 U JPS6062920 U JP S6062920U JP 15630283 U JP15630283 U JP 15630283U JP 15630283 U JP15630283 U JP 15630283U JP S6062920 U JPS6062920 U JP S6062920U
- Authority
- JP
- Japan
- Prior art keywords
- ring
- valve
- screw
- valve mechanism
- screw head
- 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
- 238000001746 injection moulding Methods 0.000 title claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示すリングバルブ機構を含
む射出成形機の要部断面図であり、第２図及び第３図は
それぞれスクリュヘッドに対してバルブリングを偏心し
て位置せしめた場合及び同心的に位置せしめた場合を示
すスクリュヘッド先端部からの親図であり、第４図はバ
ルブリングがシール位置に移動した状態を示す第１図に
対応する図であり、第５図は本考案の他の一実施例を示
す第１図に対応する図である。
２：スクリュ、６：スクリュ本体、８：スクリュヘッド
、１０：加熱筒、１２，１４：係合突起、１６：バルブ
リング、１８：突部、２０：ウェアプレート（スペーサ
）。Fig. 1 is a cross-sectional view of a main part of an injection molding machine including a ring valve mechanism showing an embodiment of the present invention, and Figs. 2 and 3 respectively show a case where the valve ring is positioned eccentrically with respect to the screw head. FIG. 4 is a diagram corresponding to FIG. 1 showing a state in which the valve ring has moved to the sealing position; FIG. FIG. 1 is a diagram corresponding to FIG. 1 showing another embodiment of the present invention. 2: Screw, 6: Screw body, 8: Screw head, 10: Heating tube, 12, 14: Engagement projection, 16: Valve ring, 18: Projection, 20: Wear plate (spacer).
Claims (1)
ュのスクリュヘッド後部外周部にバルブリングを配して
、該バルブリングのスクリュ本体側への相対的な移動に
よる当接によって、射出時に前方に送り出された流動化
樹脂材料が後方に逆流するのを阻止するようにしたリン
グバルブ機構にして、 該スクリュのスクリュヘッド外周面に高さの異なる複数
の保合突起を設ける一方、それら複数の保合突起に外接
する外接円の直径を前記バルブリングの内径よりも僅か
に小ならしめると共に、該保合突起の少なくとも一つを
、該バルブリングの前記スクリュヘッドに対する同心的
な配置において該バルブリングの前端面に当接し得る高
さで形成したことを特徴とする射出成形機におけるリン
グバルブ機構。 （２）前記バルブリングが、前記スクリュヘッド外周面
に設けられた係合突起に係止される突部を有し、該係合
突起への該突部の係止によって該バルブリングが前記ス
クリュヘッドと共に回転せしめられる実用新案登録請求
の範囲第１項記載のリングバルブ機構。 （３１前記スクリュヘッドと前記スクリュ本体とが一体
化されている実用新案登録請求の範囲第１項または第２
項記載のリングバルブ機構。 （４）前記スクリュ本体の前部を構成し、前記バルブリ
ングが当接せしめられるスペーサ部分が、前記スクリュ
ヘッドと一体に構成される実用新案登録請求の範囲第１
項または第２項記載のリングバルブ機構。[Claims for Utility Model Registration] (1) A valve ring is disposed on the outer periphery of the rear part of the screw head of the screw that fluidizes the resin material and sends it forward, and the valve ring is moved relative to the screw body. The ring valve mechanism is designed to prevent the fluidized resin material sent forward during injection from flowing backwards by abutment, and a plurality of retaining protrusions of different heights are provided on the outer peripheral surface of the screw head of the screw. At the same time, the diameter of the circumscribed circle circumscribing the plurality of retaining protrusions is made slightly smaller than the inner diameter of the valve ring, and at least one of the retaining protrusions is provided with respect to the screw head of the valve ring. 1. A ring valve mechanism for an injection molding machine, characterized in that the ring valve mechanism is formed at a height such that it can come into contact with the front end surface of the valve ring in a concentric arrangement. (2) The valve ring has a protrusion that is engaged with an engagement protrusion provided on the outer peripheral surface of the screw head, and the engagement of the protrusion with the engagement protrusion causes the valve ring to be attached to the screw head. The ring valve mechanism according to claim 1, which is rotated together with the head. (31 Utility model registration claim 1 or 2 in which the screw head and the screw body are integrated)
Ring valve mechanism as described in section. (4) Utility model registration claim 1, in which a spacer portion that constitutes the front part of the screw body and to which the valve ring is brought into contact is integrally formed with the screw head.
The ring valve mechanism according to item 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15630283U JPS6062920U (en) | 1983-10-07 | 1983-10-07 | Ring valve mechanism in injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15630283U JPS6062920U (en) | 1983-10-07 | 1983-10-07 | Ring valve mechanism in injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6062920U true JPS6062920U (en) | 1985-05-02 |
| JPS6321395Y2 JPS6321395Y2 (en) | 1988-06-13 |
Family
ID=30344941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15630283U Granted JPS6062920U (en) | 1983-10-07 | 1983-10-07 | Ring valve mechanism in injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6062920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5894349B1 (en) * | 2014-05-30 | 2016-03-30 | 三菱重工プラスチックテクノロジー株式会社 | Injection molding method, screw, and injection molding machine |
-
1983
- 1983-10-07 JP JP15630283U patent/JPS6062920U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5894349B1 (en) * | 2014-05-30 | 2016-03-30 | 三菱重工プラスチックテクノロジー株式会社 | Injection molding method, screw, and injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6321395Y2 (en) | 1988-06-13 |
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