Material lifting device for vertical injection molding machine

The utility model discloses a material lifting device for a vertical injection molding machine. The material lifting device comprises a supporting plate, a motor, a screw rod, a supporting seat, a placing plate, a telescopic rod and a positioning mechanism, a positioning mechanism is arranged, a second motor is powered on to work, a rotating shaft drives a swing arm to swing anticlockwise, the swing arm slides towards the lower end on the inner side of a moving seat through a pulley, and therefore the moving seat is pushed to move at the left end of a guide rail and drives a top plate to abut against the left side and the right side of a material; the advantage that the materials can be quickly centered and positioned is achieved; and when the moving seat moves to the right end, the moving seat can be shored and limited through the jacking block, and meanwhile, the damping rod can contract to absorb the impact force of the upper end of the moving seat, so that the advantage of preventing the moving seat from