Speed control for manufacturing process

Manufacturing container or tube from paper; or other manufacturi – Control means energized in response to activator stimulated... – Responsive to work material – the product or means engaging...

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198460, 198572, B65G 4726

Patent

active

044458800

ABSTRACT:
A drive control circuit for assuring equal spacing of folded paper boxes in a stacker mechanism during manufacturing. Each box is folded in a gluer. As each box, in succession, transfers to the stacker mechanism a counter produces a variable width pulse. These pulses are converted into fixed width pulses with frequency proportional to the rate at which the folded paper boxes transfer to the stacker mechanism. The control circuit converts these fixed width pulses to constant energy pulses and integrates the constant energy pulses to provide a DC set point signal for a DC motor drive speed control circuit. During operation, the control assures that the stacker mechanism advances a substantially fixed, incremental distance each time a folded paper box is received from the gluer, thereby to ensure substantially even spatial distribution of the boxes along the stacker mechanism.

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