The invention discloses a double-color mold demolding ejection device, and relates to the technical field of double-color mold demolding, the double-color mold demolding ejection device comprises a
base station, an upper ejection plate and a lower rotating plate, the upper ejection plate and the lower rotating plate are arranged on the
base station, a
nozzle is arranged on the upper ejection plate, a mold is arranged on the lower rotating plate, and the double-color mold demolding ejection device comprises a side runner formed in the
nozzle and a sliding rod slidably arranged in the side runner; a liquid outlet channel is defined by the side flow channel and the outer wall of the sliding rod; the center
pipe is arranged in the
nozzle in a sliding mode in the axial
diameter direction and used for driving the sliding rod to extend, and a blocking block is fixedly arranged at the top end of the center
pipe. According to the demolding and ejecting device for the double-color mold, gel in a center runner and a side runner is dredged through extension of a center
pipe and a sliding rod, accumulated force of an elastic pipe is released, the distance between a movable
barrel and the upper end of an inner cavity is increased, the volume of the movable
barrel is increased, negative pressure is generated in the movable
barrel, and therefore residual air in the mold is sucked through the center pipe; and the problem of cavities or bubbles is prevented.