在缝制工作中有时出现衣料不向前走动,反而向操作者方向移动,即衣料向后退。产生这种故障是由于上轴曲拐与凸轮偏心螺丝的角度不对。牙齿所以能够有节奏地向前移动.完全是靠送布凸轮的拨动。因凸轮本身是偏心的。所以使牙叉前后拨动,而牙叉又带动送布轴和牙架,促使牙齿前后往复运动。由此可见,凸轮的偏心位置是非常重...
When sewing clothes, there is often a phenomenon that the clothes move back and forth, that is, one step forward and one step back. This is caused by the feeding teeth being too high, the plane of the teeth exposed to the needle plate is too high, and the teeth are always exposed outside the need...