发明名称 |
Hydraulic circuit of injection cylinder in die-casting apparatus |
摘要 |
A hydraulic circuit of an injection cylinder in a die-casting apparatus, which can achieve IN restriction and OUT restriction in a quickly switchable manner with a single circuit and which allows manufacturing of a high-quality molded product. The hydraulic circuit includes: a first pressure oil path supplying pressure oil to the injection cylinder; a second pressure oil path returning the pressure oil from the injection cylinder; a first flow control valve controlling a flow of the pressure oil through the first pressure oil path; a second flow control valve controlling a flow of the pressure oil through the second pressure oil path; a bypass pressure oil path connected to the second pressure oil path for bypassing the second flow control valve; a bypass on-off valve provided on the bypass pressure oil path and opening/closing the bypass pressure oil path with the pressure oil; and a controller controlling each valve.
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申请公布号 |
US8561400(B2) |
申请公布日期 |
2013.10.22 |
申请号 |
US200813060405 |
申请日期 |
2008.11.04 |
申请人 |
NAKAMURA TAKAO;YAMANAKA AKIHIRO;YUKUTOMO HIROSHI;FUJII KENJI;TOYO MACHINERY & METAL CO., LTD. |
发明人 |
NAKAMURA TAKAO;YAMANAKA AKIHIRO;YUKUTOMO HIROSHI;FUJII KENJI |
分类号 |
F15B13/044 |
主分类号 |
F15B13/044 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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