| 摘要 |
A mold assembly is provided for use in the blow molding of plastic containers such as those used for containing milk or water. The assembly includes a pair of main mold bodies, each having a cavity which is used for forming the main body of the container. A top block assembly is removably mounted to each main mold body. Each top block assembly includes a top block body, a neck finish insert, a shear steel and a master seal. A rotatable cam is operatively associated with the top block assembly. Rotation of the cam causes a front face of the top block assembly to be moved with respect to the front face of the main mold body with which it is associated. Each top block body further includes alignment members, such as alignment pins and/or bushings, for ensuring proper alignment of the top block assemblies along the parting plane of the mold. The alignment members are preferably located at the tonnage pad sections of the top block bodies.
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