发明名称 |
Method and device for controlling electrically actuated weft brakes for the automatic adjustment of mechanical tension of a weft thread in textile machines with mechanical insertion |
摘要 |
<p>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></p> |
申请公布号 |
EP1106721(A1) |
申请公布日期 |
2001.06.13 |
申请号 |
EP20000124239 |
申请日期 |
2000.11.10 |
申请人 |
L.G.L. ELECTRONICS S.P.A. |
发明人 |
GOTTI, LUCA;ZENONI, PIETRO |
分类号 |
B65H59/24;D03D47/34;(IPC1-7):D03D47/34 |
主分类号 |
B65H59/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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