A thread trimming mechanism of a keyhole cutting machine

Abstract

The utility model provides a kind of thread cutting mechanism of lock eye machine, belong to sewing machine technical field.It solves the problem that thread hair gathering caused by thread cutting in existing thread cutting mechanism cannot be discharged, leading to normal thread cutting cannot be carried out.The thread cutting mechanism of the lock eye machine, including fixed knife, moving knife and needle plate with pinhole, moving knife has thread hook, moving knife can move forward and backward to make thread hook cooperate with fixed knife to cut thread, the lower surface of needle plate is provided with movable slot, pinhole is arranged on the bottom surface of movable slot, thread hook is located in movable slot, the upper surface of needle plate is provided with fixed slot located in front of pinhole, the rear side and bottom surface of fixed slot are communicated with the wall surface of movable slot and form communicating port, fixed knife is fixedly connected in fixed slot and covers part of communicating port, the rear side of fixed knife and the upper mouth of communicating port are spaced apart, and the front side of fixed knife and the front mouth of communicating port are spaced apart.The thread cutting mechanism makes moving knife not be jammed or even be stuck due to thread hair gathering, so that thread cutting can be carried out normally.

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