Expansion preventing and material pressing adjusting device of three-roller grinder

An expansion preventing and material pressing adjusting device of a three-roller grinder comprises a machine body (1) which is provided with a fixed point indicating module (2), an information sensingmodule (3), a pressure induction module (4) and a management module (5). During operating, the fixed point indicating module (2) is arranged on a front roller, the information sensing module (3) is arranged on a rear roller, the pressure induction module (4) is arranged on a material pressing part, and the management module (5) processes comprehensive information; a distance limiting module (6) is arranged on the fixed point indicating module (2) so that an appropriate range of the distance between the front roller and the rear roller can be set; an infrared measurement module (7) is arrangedon the information sensing module (3) so that the situation of the distance between the front roller and the rear roller can be monitored in real time; an indicating module (8) is arranged on the management module (5); the si