| 摘要 |
<p>A cloth spreading machine supporting a cloth roll, a spreader unit, and means positively feeding the cloth from the roll to the spreader unit, a main drive motor for reciprocably moving the machine longitudinally over a cloth spreading table, a feed motor for driving the cloth feed means, a motor control circuit and a feed control circuit electrically coupled together for respectively energizing the main drive motor and the feed motor at corresponding varying speeds, a dancer roller responsive to the tension in the cloth and an overfeed potentiometer in the feed control circuit and operatively responsive to the movement of the dancer roller to vary the speed of the feed motor in order to supply the cloth feed demands of the spreading machine.</p> |
