Mechanical jaw winding drum

The utility model discloses a mechanical jaw winding drum which comprises a main shaft, the main shaft is of an octagonal groove structure, a reset device and a guide column are arranged in a square groove, and an axial wedge and a jaw axial wedge are arranged in the square groove. The inside of the main shaft is of a hollow structure, a pull rod capable of driving the main shaft to move axially is arranged in the hollow structure, a radial wedge is arranged on the inclined face of the axial wedge in a matched mode, a jaw radial wedge is arranged on the jaw axial wedge in a matched mode, and fan-shaped plates are fixedly connected to the tops of the reset devices. And a jaw device is arranged in the jaw radial tapered wedge. The head of a strip is automatically clamped and then coiled through the mechanical jaw device, the jaw device is automatically loosened during coil unloading, free coil unloading of a coiled material is guaranteed, maintenance is avoided in a coiling cycle, the labor intensity of workers