Weft bobbin winding and unwinding device controlled by external motor and weft insertion method

The invention discloses a weft bobbin winding and unwinding device controlled by an external motor and a weft insertion method, a weft bobbin control module is arranged on a module movement sliding block of a weft insertion driving module, a shuttle parking seat is fixed at the tail end of the weft insertion driving module, and a shuttle body can be positioned on the shuttle parking seat; a transmission mounting seat of the weft bobbin control module is provided with a weft insertion bearing rapier and a rotatable weft bobbin light transmission shaft, and the weft bobbin light transmission shaft is driven by a weft bobbin control motor to rotate; the shuttle body comprises a shuttle main body, two groups of rapier bearing blocks are arranged at the rear part of the shuttle main body, two groups of transmission blocks are rotatably arranged at the front part of the shuttle main body, and a weft yarn tube is detachably arranged between the two groups of transmission blocks; the weft insertion bearing rapier can