| 摘要 |
<p>An automatic method for controlling the working speed of a weaving loom, for the purpose of optimising the productivity thereof, comprises the steps of: starting the loom at the speed Viniz equal to a standard working speed; detecting the overall number of stops NF1 in a first period of time t1, and determining the value of BF1 and RM1 by the formulas: B �¢ F = V �¢ t �¢ e �¢ l ‹ ” �¢ t / N �¢ F R �¢ M = B �¢ F / B �¢ F / V �¢ t �¢ e �¢ l + T �¢ F = B �¢ F ‹ V �¢ t �¢ e �¢ l / B �¢ F + T �¢ F ‹ V �¢ t �¢ e �¢ l ;
in subsequent periods of time t2, t3, tn detecting in a similar way the overall number of stops NF in any period, calculating the values of BF and RM of the different periods; at the end of each period t after the first one, comparing the value RMn of period tn with a reference value RM representative of the average productivity of the preceding periods and, for the subsequent period, increasing/decreasing loom speed by a preset value ”V, depending on the fact whether RMn is greater or smaller than the reference RM.</p> |
