Secondary demolding mechanism of plastic mold

The utility model discloses a secondary demoulding mechanism of a plastic mould, which comprises a fixed mould plate and a movable mould plate, the fixed mould plate is provided with a convex mould block, the movable mould plate is provided with a concave mould groove, the convex mould block and the concave mould groove are combined to form a mould cavity, and the mould cavity is provided with a secondary demoulding mechanism with a demoulding function. The secondary demolding mechanism comprises a plurality of first pull rod assemblies, second pull rod assemblies and straight ejection assemblies, the first pull rod assemblies and the second pull rod assemblies are adjacently arranged, the moving directions of the first pull rod assemblies and the second pull rod assemblies are parallel, and the first pull rod assemblies and the second pull rod assemblies are located on the outer sides of the fixed mold plate and the movable mold plate; the straight ejection assembly and the first pull rod assembly are driven