Air pressure stabilizing device for cold rolling guide roller

The invention relates to the technical field of cold rolling mills, in particular to a cold rolling guide roller air pressure stabilizing device which comprises a first shell and a second shell installed at the bottom of the first shell, a baffle is rotationally connected to the interior of the second shell, a rotating disc is fixedly connected to the top of the baffle, and a fixed disc is fixedly connected to the interior of the first shell. And two guide grooves are symmetrically formed in the fixing disc, and resistance assemblies are arranged in the two guide grooves. The air supply device has the advantages that by arranging the baffle, the rotating disc, the fixed disc, the resistance assembly and the sliding disc, the air outlet pressure can be changed along with staggering of the first vent hole and the second vent hole, so that the air outlet pressure can be accurately controlled, meanwhile, when the air source supply device stops supplying air, the rotating disc can be promoted to drive the baffle t