公开(公告)号：US5803383A

公开(公告)日：1998-09-08

申请号：US772694

申请日：1996-12-23

申请人： Lothar Boekels

发明人： Lothar Boekels

IPC分类号： B65H54/38

CPC分类号： B65H54/38 ,  B65H2551/21 ,  B65H2701/31

摘要： A method of avoiding constant pattern windings when winding yarn packages by driving traversing yarn guides in accordance with a periodic disruption function, wherein the magnitude of the slope of the periodic disruption function in the vicinity of the extreme points of the function is greater in comparison than the magnitude of the slope of a corresponding sine function having the same amplitude and period. Moreover, the magnitude of the slope of the periodic disruption function changes at least once between a zero crossover and an extreme point, whereafter, until the vicinity of the extreme point is reached, the magnitude of the slope of the periodic disruption function is less than the magnitude of the slope of the corresponding sine function having the same amplitude and period. Preferably, the amplitude and period of the periodic disruption function of the present invention is also randomly varied periodically. Moreover, in a polygonal periodic disruption function of the present invention, the salient points per half period of the polygonal function are preferably randomly changed periodically.

摘要翻译： 一种通过根据周期性中断功能来驱动横动导纱器来卷绕纱线卷装时避免恒定花纹绕组的方法，其中功能极值点附近的周期性破坏功能的斜率的大小比较大 具有相同幅度和周期的相应正弦函数的斜率的大小。 此外，周期性破坏函数的斜率的大小在零交叉和极值点之间至少改变一次，此后，直到达到极值点附近，周期性破坏函数的斜率的幅度小于 相应的正弦函数的斜率的幅度具有相同的幅度和周期。 优选地，本发明的周期性中断功能的振幅和周期也是周期性地随机变化的。 此外，在本发明的多边形周期性破坏功能中，多边形函数的每半周期的显着点优选周期性地随机变化。