Polyurethane foaming machine with raw material preheating function

The utility model discloses a polyurethane foaming machine with a raw material preheating function, and relates to the technical field of polyurethane foaming machines. The stirring device comprises a motor, a preheating stirring tank, a rotating rod, a driving assembly, a sleeve rod, a stirring blade, a vibration stirring mechanism and a U-shaped stirring blade, the motor is fixedly embedded in the top of the preheating stirring tank, and an output shaft of the motor extends into the preheating stirring tank; a driving assembly used for driving the sleeve rod to reciprocate up and down is fixed to the top of the inner wall of the preheating stirring tank and comprises an assembly shell, a positioning block and a sliding rail column. According to the utility model, the positioning block is matched with the sliding rail groove of the sliding rail column, so that the sleeve rod can move up and down in a reciprocating manner while rotating, materials in the preheating stirring tank are fully stirred, and meanwhi