JPS6331914U - - Google Patents
Info
- Publication number
- JPS6331914U JPS6331914U JP12476686U JP12476686U JPS6331914U JP S6331914 U JPS6331914 U JP S6331914U JP 12476686 U JP12476686 U JP 12476686U JP 12476686 U JP12476686 U JP 12476686U JP S6331914 U JPS6331914 U JP S6331914U
- Authority
- JP
- Japan
- Prior art keywords
- pilot pressure
- mold clamping
- clamping cylinder
- pressure
- valve
- 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 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fluid-Pressure Circuits (AREA)
- Moulds For Moulding 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図、第２図は
従来例を示す図である。
１５……型締シリンダ、１７……可動プラテン
、３１１〜３１４……カートリツジ弁、３２……
切換弁、４６……油圧ポンプ、６３……切換弁、
６６……リリーフ弁。
FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing a conventional example. 15... Mold clamping cylinder, 17... Movable platen, 31 1 to 31 4 ... Cartridge valve, 32...
Switching valve, 46... Hydraulic pump, 63... Switching valve,
66...Relief valve.
Claims (1)
と、パイロツト圧によつて開閉され前記型締シリ
ンダの動作方向を切り換える複数のポペツト型開
閉弁と、これらの開閉弁にパイロツト圧を選択的
に供給して型締シリンダの動作方向を切り換える
切換弁とを備えた竪型射出成形機において、前記
可動プラテンの下降時に前記型締シリンダからの
油を排出する開閉弁に油圧源からの圧力油をパイ
ロツト圧として与える切換弁と、このパイロツト
圧を設定圧に保持するリリーフ弁とをそれぞれ設
けたことを特徴とする竪型射出成形機におけるプ
ラテンのブレーキング回路。 A mold clamping cylinder that raises and lowers a movable platen, a plurality of poppet type on-off valves that are opened and closed by pilot pressure to switch the operating direction of the mold clamping cylinder, and pilot pressure is selectively supplied to these on-off valves. In a vertical injection molding machine equipped with a switching valve that switches the operating direction of the mold clamping cylinder, pressure oil from a hydraulic source is used as pilot pressure to the on-off valve that discharges oil from the mold clamping cylinder when the movable platen is lowered. A braking circuit for a platen in a vertical injection molding machine, characterized in that it is provided with a switching valve that provides pilot pressure and a relief valve that maintains the pilot pressure at a set pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12476686U JPH0312492Y2 (en) | 1986-08-14 | 1986-08-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12476686U JPH0312492Y2 (en) | 1986-08-14 | 1986-08-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6331914U true JPS6331914U (en) | 1988-03-01 |
| JPH0312492Y2 JPH0312492Y2 (en) | 1991-03-25 |
Family
ID=31017085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12476686U Expired JPH0312492Y2 (en) | 1986-08-14 | 1986-08-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0312492Y2 (en) |
-
1986
- 1986-08-14 JP JP12476686U patent/JPH0312492Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0312492Y2 (en) | 1991-03-25 |
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