In process of spinning, The winding formation depends directly on the up and down movement of ring bar, especially the repeated bumping and beating of nose bit and nose base on the formation cam.

• 摘要在纺纱过程中，钢领板的上下运动直接影响到卷绕成形的质量，特别是成形凸轮在桃尖的冲击及桃底的打顿，更突出地影响到成形的好坏。