Balance mechanism for a press machine

Details Balance mechanism for a press machine Balance mechanism for a press machine

1993-01-25

1993-08-31

Coe, Philip R.

Presses

Automatic or material triggered control

Of actuating means

100282, 100299, 74591, 74604, B30B 1514

Patent

active

052399214

ABSTRACT:
Three balance mechanisms for a press machine are described. The first balance mechanism for a press machine comprises a balance weight 91 mounted on a crankshaft 86 of the press machine, a balance weight 92 mounted on a balance mechanism shaft 93, a motor for rotating the shaft 93 and a control system for the motor. The control system ensures that the balance mechanism shaft 93 rotates in the opposite direction to, but at the same speed as, crankshaft 86. The balance weights 91 and 92 balance the primary shaking forces which arise in the press machine along the axis of movement of its ram 83. In the second balance mechanism, balance weights are mounted on two separate shafts rotated by a motor and connected by a gear mechanism. In the third balance mechanism, one balance weight is mounted on the crankshaft, another balance weight is mounted on a shaft rotated by a motor, and a further pair of balance weights are mounted on a pair of shafts rotated by a motor at twice crankshaft speed.

REFERENCES:
patent: 2808736 (1957-10-01), Jackson
patent: 3808912 (1974-05-01), Vorhees
patent: 4509378 (1985-04-01), Brown
"Computer-Aided Design of a Retrafit Package to Reduce Shaking Forces in a Metal Can Body Maker Machine" M. R. Askari and T. H. Davies Cont. Westminster, London (Sep. 24, 1988), Organized by Institution of Mechanical Engineers.

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