Cloth winding roller centering stop device

The utility model discloses a cloth roll centering and stopping device which comprises a first centering and stopping assembly and a second centering and stopping assembly which are symmetrically arranged. The second centering stop assembly comprises a first air cylinder, a transition frame, a pushing piece, a first sensor, a first stop hook and a first connecting rod, the pushing piece and the first sensor are horizontally arranged on one side of the transition frame, one end of the first stop hook is hinged to the transition frame, the two ends of the first connecting rod are hinged to the first stop hook and the transition frame respectively, and the upper end face of the transition frame inclines towards the feeding side. A through hole A is formed in the upper end face of the transition frame, a cylinder body of the first air cylinder is hinged to the transition frame, the output end of the first air cylinder is hinged to the first connecting rod, and the first air cylinder drives the first connecting ro