Heating mirror roller structure

The invention relates to the technical field of mirror rollers, and discloses a heating mirror roller structure which comprises a mirror roller, connecting columns are symmetrically arranged on the two sides of the mirror roller, grooves are formed in the tail ends of the connecting columns, bearings are arranged in the grooves, inner cavity pipes are arranged at the outer ends of the connecting columns, heating wires are arranged between the mirror roller and the inner cavity pipes, and mounting columns are arranged on the inner walls of the bearings. When the mirror roller of the heating mirror roller structure works, the heating wire is heated, and the temperature continuously rises, so that the liquid in the expansion pipe expands, the movable block is gradually pushed by the expanded liquid until the trigger button is pressed, the heating wire is powered off to stop heating, and the pressure in the auxiliary pipe is greater than the pressure in the expansion pipe along with the power off of the heating w