| 摘要 |
<p>Apparatus for the control and regulation of the cutting interval for a strip advanced by a roll feed device and of the synchronism of a cutting mechanism effecting the cutting operation with the strip material during the cutting step. A common main drive serves for effecting movements of the cutting mechanism and of the strip material along its travel path and an auxiliary drive is effective on movements of one of the cutting mechanism and the strip material by way of a superposed gear system. The control apparatus includes a desired value pickup device for providing an output indicative of the cutting interval, at least one actual value pickup device for providing an output indicative of at least one of the length of material traversed since the preceding cutting step and the travel velocity of the strip material and at least one of the stroke length and travel velocity of the cutting mechanism, comparison devices for comparing the actual values of at least one of the travel velocities and the lengths of the strip material and cutting mechanism with each other and with the desired value of the cutting interval, and a control arrangement for regulating at least the auxiliary drive until the cutting step is conducted.</p> |
