Thread-cutting mechanism of an embroidery machine and tube embroidery machine applying the same

A thread-cutting mechanism of an embroidery machine, comprising:

• a movable knife (2) provided at a periphery of a rotary shuttle (1);
• and
• a stationary knife (4) cooperating with the movable knife for cutting a thread;
• wherein the movable knife (2) is provided on a movable knife frame (3) that drives the movable knife (2) to rotate around the rotary shuttle and cooperate with the stationary knife (4) to cut the thread;
• the movable knife frame (3) is rotatably provided at a periphery or one side of a driving shaft (10) of the rotary shuttle;
• the movable knife frame (3) is rotatably mounted on a needle plate seat (5), or on an embroidery machine body, at a corresponding location for cooperation with the rotary shuttle;
• the stationary knife (4) is mounted on the needle plate seat (5), or on the embroidery machine body, at a corresponding location for cooperation with the rotary shuttle;
• and
• the movable knife frame (3) is provided with a drive structure (7) that drives the movable knife frame (3) to rotate.