B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
242/44.4
B65H 59/00 (2006.01) B65H 18/10 (2006.01)
Patent
CA 1040179
ABSTRACT OF THE DISCLOSURE A method and apparatus for driving independently a plurality of strip rewinding shafts are provided. The apparatus includes a plurality of variable volume hydrau- lic motors for separately driving a plurality of strip rewinding shafts. The hydraulic motors are connected in parallel to a common hydraulic pump to be independently and simultaneously driven by the pump. The hydraulic pump is connected to a DC electric motor, the operation of which is controlled by a torque control to provide an output rotation of a desired torque characteristic. Connected to the input of the torque control are devices for setting the rotational speed of the DC motor, for detecting the diameter of at least one s-trip roll being wound, and for detecting the output rotation of the DC motor. In response to output signals from these devices, the torque control functions to control the operation of the DC motor for providing the output rotation of a desired torque characteristic which controllably drives the rewinding shafts simultaneously and independently through the hydraulic pump and its associated hydraulic motors.
257106
Shoji Jinichi
Yamaguchi Toshiaki
LandOfFree
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