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method and device for control of electrically controlled schussfadenbremsen for automatic adjustment of the mechanical tension of the schussfadens in textile machines with mechanical committeeseintrag
method and device for control of electrically controlled schussfadenbremsen for automatic adjustment of the mechanical tension of the schussfadens in textile machines with mechanical committeeseintrag
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机译:机控制委员会控制电动控制的舒斯法登纺织机械自动调整舒斯法登机械张力的方法和装置
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摘要
A method for controlling electrically actuated weft brakes (LF) for automatically adjusting mechanical tension (T) of a weft thread (F) in textile machines with mechanical insertion, characterized in that it comprises the steps of: generating and modulating an excitation current of an actuator (MF) of an electrically actuated brake with a device which comprises a control loop (A) which is sensitive both to variations of mechanical tension (T) measured on the weft thread (F) and to an actual value (v) of a travel speed of the weft thread during insertion; the control loop (A) being adapted to recondition a reference parameter of the braking action (fren-ref), determined by the control loop on the basis of a reference tension (tens-rif) and a measured tension (tens-mis), with a multiplication factor which is represented by a decreasing function Äf(v)Ü of the actual value (v) of the travel speed of the weft thread. IMAGE
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