Method for controlling the consumption of yarn in a weaving process
AssigneeL.G.L. Electronics S.p.A.
InventorsPietro Zenoni, Luca Gotti
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Abstract
A textile machine receives a plurality of yarns from respective feeders, each provided with a control unit that calculates, for each garment produced, the amount of yarn consumed (YCmeas) and compares it with a reference consumption value (YCref). If the difference exceeds a preset limit value (% max) that indicates an anomaly, then an alarm is generated. Periodically, the control unit calculates an average consumption value (YCmed) on the basis of a preset number (Nmed) of already-finished garments, and compares it with the reference consumption value (YCref). If the difference exceeds a preset threshold value (% maxmed), then the reference consumption value (Yref) is set to the average consumption value (Ymed).
Claims8
A method for controlling the consumption of yarn in a weaving process, wherein a textile machine receives a plurality of yarns from respective feeders each provided with a control unit, said control unit being adapted to calculate, for each garment produced, the amount of yarn consumed (YCmeas), compare it with a reference consumption value (YCref) and, if the difference is greater than a preset limit value (% max) that indicates an anomaly, generate an alarm, wherein said control unit periodically carries out the following steps:
- calculating an average consumption value (YCmed) on the basis of a preset number (Nmed) of already-finished garments, and
- comparing said average consumption value (YCmed) with said reference consumption value (YCref) and, if the difference is greater than a preset threshold value (% maxmed), setting said reference consumption value (YCref) to said average consumption value (YCmed).
Dependencies are inferred from the claim text.