发明名称 |
DISPOSITIVO DI SICUREZZA CONTROLA ROTTURA PER ATTREZZI DI PRESSE DI TRANCIATURA |
摘要 |
<p>Apparatus for protecting tools of hydraulically operated fine punch presses of the type having a main piston as well as quick-closing pistons for imparting movement to the press ram. Keying pistons are arranged at the ram in series with and extending in the same direction as the quick-closing pistons to form a keying gap, variable in response to resistance pressure applied to the ram movement at or near the closing operation. A safety stop switch is arranged for detecting the keying gap and for effecting a stoppage of the machine in the event the keying gap is below a predetermined amount indicating an impediment in the path of the ram.</p> |
申请公布号 |
IT1048811(B) |
申请公布日期 |
1980.12.20 |
申请号 |
IT19750022489 |
申请日期 |
1975.04.18 |
申请人 |
SMG SUEDDEUTSCHE MASCHINEN GMBH |
发明人 |
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分类号 |
B21D28/00;B21D55/00;B30B15/28;(IPC1-7):30B/ |
主分类号 |
B21D28/00 |
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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