Servomechanism for rotary type flying cutting apparatus

Details Servomechanism for rotary type flying cutting apparatus Servomechanism for rotary type flying cutting apparatus

1976-07-26

1978-05-23

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Digital or numerical systems

318632, 83 76, G05B 1928

Patent

active

040913155

ABSTRACT:
In a servomechanism in which a cutter is rotated by a servomotor to cut a moving member in a predetermined rotational angular range of the cutter and the servomotor is controlled in accordance with the difference between the number of length measuring pulses generated corresponding to the distance of movement of the moving member and the number of rotation measuring pulses generated corresponding to the rotation of the cutter, a correcting signal is read out of a memory with respect to each rotational angular position of the cutter in the above said predetermined rotational angular range. The correcting signal corresponds to the component of unit rotational distance of the cutter in the direction of travel of the moving member at each rotational angular position of the cutter in its predetermined rotational angular range. By the correcting signal, the difference between the number of the length measuring pulses and that of the rotation measuring pulses is decreased, whereby the distance of movement and moving speed of the moving member and the distance of movement and rotating speed of the cutter in the direction of travel of the moving member are made equal to each other.

REFERENCES:
patent: 3604300 (1971-09-01), Allison et al.
patent: 3802306 (1974-04-01), Brown et al.
patent: 3807261 (1974-04-01), Couvreur
patent: 3917930 (1975-11-01), Davey et al.
patent: 4015183 (1977-03-01), Miyakita
patent: 4020406 (1977-04-01), Tokuno et al.

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