This paper analyses the thread guide motion of the winding mechanism for model SDS8 M4 draw false twisting machine and researches into the shortening principle of the thread guide travel.

• 分析了SDS8-M4型牵伸假捻机卷绕机构的导丝运动，探讨了导丝动程缩短原理，研究了导丝运动规律及参数间的相互关系，并给出了实例分析结果