Coil stock tensioning device

The utility model discloses a coil stock tensioning device, which relates to the technical field of automobile accessory rolling production lines, and comprises a turntable rotating assembly, the turntable rotating assembly comprises a rotating shaft, and the axis of the rotating shaft is a central axis; the connecting rod tensioning assembly comprises a sliding shaft and a plurality of inner ring pressing plates, the sliding shaft can axially move in the rotating shaft, the inner ring pressing plates are distributed circumferentially, the rotating shaft is sleeved with a rotating disc base plate, and the inner ring pressing plates are provided with rolling units and radially move towards the central axis along the rotating disc base plate through the rolling units; the inner sides of the inner ring pressing plates are connected with the sliding shaft through a plurality of parallel second connecting rods, so that when the sliding shaft moves in the axial direction of the rotating shaft, all the inner ring pr