G - Physics – 05 – D
Patent
G - Physics
05
D
341/64
G05D 13/62 (2006.01)
Patent
CA 1089555
ROTARY CUTTER FOR SUCCESSIVELY CUTTING MOVING MATERIAL TO LENGTHS Abstract of the Disclosure A system for controlling the speed of a DC motor so that the material fed to a rotary cutter is succes- sively cut to desired lengths. The speed of the rotary cutter driving DC motor is controlled in accordance with a rotary cutter speed control pattern which is deter- mined by the relation between the length of the rotary cutter circumference and the length to which the material is to be cut. This rotary cutter speed control pattern is provided in the form of speed command signals in accordance with a function output derived by setting the length of the rotary cutter circumference, the length to which the material is to be cut and the cutting distance during which the rotary cutter speed and the material travel speed synchronize with each other. The system also accomplishes the necessary control for correcting any error caused between the speed control pattern and the actual rotary cutter speed as well as the required acceleration control of the motor in accord- ance with the speed control pattern.
290073
Matsumoto Yutaka
Saito Minoru
Macrae & Co.
Nihon Electronic Industry Co. Ltd.
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