Control apparatus of flying shears

Details Control apparatus of flying shears Control apparatus of flying shears

1978-11-24

1982-02-16

Witkowski, S. J.

Electricity: motive power systems

Positional servo systems

With stabilizing features

318614, 318616, G05B 501

Patent

active

043161316

ABSTRACT:
In a control apparatus of a flying shear wherein a clutch is actuated to transmit the rotation of a drive motor to a cutting blade to rotate the same for achieving cutting and then the clutch is disengaged and the cutting blade is stopped by means of a brake, there are provided a speed signal generator for generating a signal corresponding to the speed of the cutting blade, a rest point establishing device for establishing a rest point for the cutting blade, an operation circuit receiving the output of the speed signal generator and performing an operation, and an instruction circuit responsive to the output of the operation circuit and the output of the rest point establishing device to produce at least one of an instruction for declutching and an instruction for braking.

REFERENCES:
patent: 3587798 (1971-06-01), Schuman
patent: 3811354 (1974-05-01), Ito
patent: 3886830 (1975-06-01), Holthoff et al.

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