Self-locking type suture line preparation device and preparation method thereof

The invention belongs to the field of medical-instrument preparation devices and provides a self-locking type suture line machine preparation device and a preparation method thereof. The self-locking type suture line machine preparation device comprises three parts: (1) a suture line holding device comprising two groups of combined rollers, a pressing roll, a line guiding roll and a suture line bearing disc; (2) a suture line cutting tool and an adjusting device comprising a blade, a blade fixing disc, a tool position adjusting device, a bearing and a transmission belt; and (3) a transmission device comprising a transmission speed control part and a to-be-cut suture line collecting winder. The suture line machine preparation device is designed according to different geometrical parameters of reverse teeth; the self-locking type suture lines with different specifications can be obtained by utilizing the self-locking type suture line preparation device; and the preparation device is applicable to preparation of