This utility model discloses a mold clamping mechanism of an injection blow molding machine, which comprises a mold clamping press plate and a mold clamping oil cylinder. A convex ring parallel to the upper end face of a turntable mold frame is arranged on the upper side wall of the mold clamping press plate, with the lower end face of the convex ring opposite to the upper end face of the turntable mold frame. At least two guide pillars parallel to the movement direction of the mold clamping press plate are fixedly connected to the convex ring, distributed on both sides of the mold clamping oil cylinder and slidably connected with the mold clamping frame, with the upper ends of the guide pillars extending upward out of the mold clamping frame. The guide pillars are hollow tubular bodies, with a separation guide pillar axially slidably arranged inside each guide pillar. A cylinder is coaxially arranged at the top end of each guide pillar, and the push rod of the cylinder is inserted into the guide pillar, opposite to the top end of the separation guide pillar. When the push rod of the cylinder is extended, it pushes the separation guide pillar to move downward, and the lower end of the separation guide pillar extends out from the lower end of the guide pillar to push the mold clamping press plate to move upward, keeping the mold clamping press plate at a distance from the mandrel base without contact, thus achieving the technical goal that the mold clamping press plate lifts and lowers synchronously with the turntable mold frame.

Country Code: CN

Application Number: CN201720005090.2