Presses – Methods
Patent
1994-10-25
1996-08-13
Gerrity, Stephen F.
Presses
Methods
83615, 100259, 100282, 100292, B30B 106
Patent
active
055445764
ABSTRACT:
In a mechanical pressing machine, a flywheel is fixedly mounted on an input shaft, and a drive cam plate is fixedly mounted on the input shaft intermediate opposite ends thereof, and a torque compensation plate cam is mounted on the other end of the input shaft. A cam follower mounted on a distal end of a piston rod of a resilient force-producing device is held in pressing contact with the torque compensation plate cam so as to cancel a load fluctuation produced on the input shaft. The resilient force-producing device employs a compression coil spring or an air spring. With this construction, a periodic inertial load fluctuation, repeatedly produced for every revolution during the operation of the mechanical press, is compensated for by the system for reserving energy, and hence is canceled, thereby balancing the energy, so that variations in rotation of the input shaft are eliminated, thereby reducing vibrations and noises.
REFERENCES:
patent: 2857157 (1958-10-01), Bonquet
patent: 3229496 (1966-01-01), Foster et al.
patent: 4638731 (1987-01-01), Kato
patent: 4674357 (1987-06-01), Sugawara et al.
Gerrity Stephen F.
Sankyo Seisakusho Co.
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