Quick-change winding drum with jaw plunger arch-shaped blocks

The invention relates to the technical field of mechanical equipment, and discloses a quick-change winding drum with jaw plunger arch blocks. Comprising a rotary joint, an expansion cylinder, a connector, a coupler, a wedge-shaped tensioning device, a transmission sleeve, a main shaft, a pull rod, a catcher, a wedge-shaped shaft, a jaw plunger, a wedge plunger, an extension shaft, a head supporting piece, a jaw reset device, a wedge, an arch block, a jaw sector plate, a jaw plate, a mounting plate and a jaw reset device. The wedge-shaped tensioning device is matched with the mounting plate, and the vertical position of the wedge-shaped block is adjusted by rotating the adjusting bolt, so that the main shaft is quickly positioned, mounted and dismounted, the shutdown and production halt time consumed when a winding drum is replaced is shortened, clamping or loosening of a metal curled edge and expansion and shrinkage of the winding drum can be realized by only adopting one oil cylinder, and the production effi