Stepless pressure regulation roller of planishing mill

The utility model relates to a stepless pressure regulation roller of a planishing mill. The stepless pressure regulation roller of the planishing mill comprises a roller core, a roller sleeve, a nylon sleeve, side face sealing bars, end face sealing rings and bearings. The roller sleeve is sleeved outside the roller core, a cavity is arranged between the roller sleeve and the roller core, and the nylon sleeve is sleeved outside the roller sleeve. One bearing is arranged between one end of the roller core and the roller sleeve, the other bearing is arranged between the other end of the roller core and the roller sleeve, the end face sealing ring is mounted on the roller core inside each bearing. The two side face sealing bars are arranged between the roller sleeve and the roller core, and the two side face sealing bars are used to divide a cavity between the roller sleeve and the roller core into a pressure oil cavity and a non-pressure oil cavity. An oil inlet channel and an oil return channel are arranged o