Processes for producing hollow molded articles

摘要

The blow-molded articles having an open end is produced by the steps of; setting a resin parison in cavity formed by a pair of metal mold members, blowing a pressurized gas into the resin parison to form an intermediate molded article, and cutting a predetermined part of the intermediate molded article with forward or backward movement of a cutting means. The cutting means is attached to the one member of the metal mold members and movable reciprocally in a cross direction relative to the longitudinal or axial direction of the metal mold members. The cutting means may be guided movably along a groove or slit formed in the metal mold members.