Automatic method for controlling the working speed of a weaving loom to optimise the productivity thereof

摘要

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⋅Δ⁢t/N⁢FR⁢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 ΔV, depending on the fact whether RMn is greater or smaller than the reference RM.