Balance mechanism for a press machine

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

1991-05-06

1993-04-13

Coe, Philip R.

Presses

Automatic or material triggered control

Of actuating means

100282, 100299, 74591, 74604, B30B 1514

Patent

active

052012670

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), Voorhees et al.
patent: 4480538 (1984-11-01), Yoshida
patent: 4509378 (1985-04-01), Brown
Patent Abstracts of Japan, vol. 7, No. 79 (M-204)/1224, Mar. 31, 1983; JP-A-58 4689 (Nishishiba) 11-01-1983.
Patent Abstracts of Japan, vol. 13, No. 177 (M-818)/3525, Apr. 26, 1989; JP-A-01 6545 (Isuzu Motors) Nov. 1, 1989.
Patent Abstracts of Japan, vol. 12, No. 340 (M-740)/3187, Sep. 13, 1988 JP-A-63 101 538 (Isuzu Motors) Jun. 5, 1988.
Patent Abstracts of Japan, vol. 12, No. 340 (M-740)/3187, Sep. 13, 1988; JP-A-63 101 539 (Isuzu Motors) Jun. 5, 1988.
"The Computer-aided Design of a Retrofit Package to Reduce the Shaking Forces in a MetalCan Bodymaker Machine," M. R. Askari and T. H. Davies, read at a conference entitled "High Speed Machinery", held at 1, Birdcage Walk, Westminster, London on Sep. 24, 1988 organized by Institution of Mec. Eng.

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