JPS623709U - - Google Patents
Info
- Publication number
- JPS623709U JPS623709U JP9651385U JP9651385U JPS623709U JP S623709 U JPS623709 U JP S623709U JP 9651385 U JP9651385 U JP 9651385U JP 9651385 U JP9651385 U JP 9651385U JP S623709 U JPS623709 U JP S623709U
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- suction
- storage tank
- mixing head
- passage
- 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
- 239000002994 raw material Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 2
- 238000010107 reaction injection moulding Methods 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第１図は本考案の一実施例を示す説明図、第２
図は第２の実施例を示す説明図、また、第３図及
び第４図はそれぞれ従来例を示す説明図である。
１……貯蔵タンク、２……混合ヘツド、３……
吸入弁、４……吸入路、５……吐出路、６……原
料吐出シリンダ（原料吐出装置）、７……循環路
、１０……バイパス路、１１……切換弁。
Fig. 1 is an explanatory diagram showing one embodiment of the present invention;
The figure is an explanatory diagram showing the second embodiment, and FIGS. 3 and 4 are explanatory diagrams each showing a conventional example. 1...Storage tank, 2...Mixing head, 3...
Suction valve, 4... Suction path, 5... Discharge path, 6... Raw material delivery cylinder (raw material delivery device), 7... Circulation path, 10... Bypass path, 11... Switching valve.
Claims (1)
入弁を備えた吸入路によつて該貯蔵タンクに、吐
出側が吐出路によつて該混合ヘツドにそれぞれ接
続され、上記吸入弁と協動して作動せしめられて
上記貯蔵タンク内の液状プラスチツク原料を上記
混合ヘツドに送る原料吐出装置が配設され、かつ
、上記混合ヘツドには、上記原料吐出装置によつ
て送られてくる液状プラスチツク原料を上記貯蔵
タンク内に戻す循環路が接続された反応射出成形
装置の原料循環装置において、上記吐出路には、
該吐出路内に吐出される液状プラスチツク原料を
上記吸入路の上記吸入弁より上流側で吸入弁の近
くの部位に戻すバイパス路が接続され、かつ、上
記バイパス路には、該バイパス路を開閉する切換
弁が備えられて成ることを特徴とする反応射出成
形装置の原料循環装置。 Between the storage tank and the mixing head, the suction side is connected to the storage tank by a suction conduit with a suction valve, and the discharge side is connected to the mixing head by a discharge conduit, cooperating with the suction valve. A raw material discharging device is disposed that is activated to send the liquid plastic raw material in the storage tank to the mixing head, and the mixing head receives the liquid plastic raw material sent by the raw material discharging device. In the raw material circulation device of the reaction injection molding apparatus, which is connected to a circulation path that returns to the storage tank, the discharge path includes:
A bypass passage is connected to the suction passage to return the liquid plastic raw material discharged into the discharge passage to a portion of the suction passage upstream of the suction valve and near the suction valve, and the bypass passage is connected to the bypass passage for opening and closing the bypass passage. 1. A raw material circulation device for a reaction injection molding device, characterized in that it is equipped with a switching valve that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9651385U JPH037139Y2 (en) | 1985-06-25 | 1985-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9651385U JPH037139Y2 (en) | 1985-06-25 | 1985-06-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS623709U true JPS623709U (en) | 1987-01-10 |
| JPH037139Y2 JPH037139Y2 (en) | 1991-02-22 |
Family
ID=30656005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9651385U Expired JPH037139Y2 (en) | 1985-06-25 | 1985-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH037139Y2 (en) |
-
1985
- 1985-06-25 JP JP9651385U patent/JPH037139Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH037139Y2 (en) | 1991-02-22 |
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