Presses – Automatic or material triggered control – Of actuating means
Patent
1992-09-11
1993-10-19
Gerrity, Stephen F.
Presses
Automatic or material triggered control
Of actuating means
100 99, 100271, 72 21, 7245304, B30B 1514, B30B 1516
Patent
active
052535720
ABSTRACT:
A press includes a reciprocation unit having a crank structure which is driven in horizontal reciprocation by an associated press drive. A motion direction shifting unit having a link structure is coupled to the reciprocation unit a ram so as to reciprocate the ram vertically between an upper position and a lower rest position in response to the horizontal reciprocation of the reciprocation unit, such that the ram remains in a state of substantial rest with respect to the shifting unit for a predetermined period of time upon reaching the lower position. A control unit controls a hydraulic fluid supply system to cause a pressure applying device to apply a controlled press forming force to the ram when a sensor detects that the ram is in the rest state.
REFERENCES:
patent: 905601 (1908-12-01), Sperber
patent: 933010 (1909-08-01), Wilzin
patent: 1007792 (1911-11-01), Orton
patent: 2633094 (1953-03-01), Muller
patent: 3143007 (1964-08-01), Thompson
patent: 3518869 (1970-07-01), Forichon
patent: 3561252 (1971-02-01), Norton et al.
patent: 4480538 (1984-11-01), Yoshida
Suzuki Toshio
Uehara Tadayoshi
Aida Engineering Ltd.
Gerrity Stephen F.
Rabin Steven M.
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