Automatic hexagonal core column loading and unloading device

The utility model discloses an automatic hexagonal core column loading and taking-out device which comprises a first push rod air cylinder, a second push rod air cylinder and a pushing and taking-back device, and the pushing and taking-back device comprises a first rotating air cylinder, a servo motor, a lifting mechanism, a third push rod air cylinder, a pushing mechanism, a second rotating air cylinder and a fourth push rod air cylinder which are sequentially installed from bottom to top. A positioning table and a clamping mechanism are arranged at the end of a push rod of the third push rod air cylinder and the end of a push rod of the fourth push rod air cylinder correspondingly, a hexagonal core column is pushed to the positioning table from a preparation area through the second push rod air cylinder, the positioning table is moved to the position close to the datum plane of the cubic press through the first rotating air cylinder and the lifting mechanism, and the positioning table is pushed to the datum