The buttonholes programmed by the operator are sewn sequentially;the respective cutting length is allocated fully automatically.This means maximum efficiency,even for short runs.

• 因此，在完成一种锁眼后无需做其他的调节，机器根据操作人员编制好的程序序列，自动地改变切孔长度进行锁眼，极大程度地提高了生产效率。