Outer shuttle frame and rotating shuttle

Abstract

The invention relates to the technical field of sewing machines, in particular to an outer shuttle frame and a rotating shuttle, which comprise an integrally constructed outer shuttle main body, the middle of the outer shuttle main body is provided with a mounting cavity, the side wall of the mounting cavity is concavely provided with a guide groove and a mounting surface arranged on the top end surface of the guide groove, and the mounting surface is detachably provided with at least one arc-shaped limiting piece. The arc-shaped limiting piece is used for limiting the guide rail of the inner shuttle frame in the guide groove, the side wall of the outer shuttle body is provided with at least one dust discharging hole communicated with the guide groove, the top edge of the outer shuttle body is provided with a thread pushing protrusion, a needle inserting groove located below the thread pushing protrusion and a needle protecting face connected with the needle inserting groove, and the needle inserting groove is used for insertion of a machine needle. The outer shuttle body is of an integrated structure, the structural stability is good, the upper threads are pushed outwards through the thread pushing protrusions, the upper threads are convenient to loosen, the needle protection faces are arranged for limiting and protecting the machine needles, dust in the guide grooves is discharged through the dust discharging holes, heat dissipation is facilitated, and the fault probability that the inner shuttle frame is clamped in the outer shuttle body is reduced.

Images