Chip removing device for eyelet button hole of sewing machine, has cutting tool fastened at cutting tool seat, eyelet blade provided with passage borehole at middle, and movable pressure pin arranged above passage borehole

摘要

The device has a retaining hole (141) residing in a pressure cutting piece (14). A squeezing device is provided with a movable pressure pin (41) and is accommodated in an interior of the retaining hole. A cutting tool seat (2) resides below the pressure cutting piece, and a cutting tool (3) is fastened at the cutting tool seat. The cutting tool is provided with a straight blade and an eyelet blade (32), where the eyelet blade has a passage borehole (33) at the middle. The movable pressure pin is arranged above the passage borehole.