| 摘要 |
<p>A machine for continuously laterally perforating very wide paper and having an electronic control for smoothly starting and stopping the paper, a length of perforated paper detection device and combined control warning device for detecting the end of the roll of paper, wherein the machine is arranged in a compact structure having two simultaneously mechanized lateral holders which support all of the various mechanisms so as to thereby ensure the perfect positioning thereof. The actuation of the perforator heads of the machine is effected by the paper itself through a precision mechanized antiskid roller and the tension of the paper is controlled by swinging rollers whose movement is detected by a sensor and electronically processed while simultaneously taking into consideration the speed of the paper so as to control the unwinding of the feed roll of paper utilizing an electromagnet brake.</p> |
