Patent ID: 6054092
Filing Date: 2000-04-25
Classification: B29C,B29L

Abstract:
A method of manufacturing resinous containers comprising:preparing segmental molding dies, said segmental molding dies comprising a first cavity for molding hollow bodies and a second cavity for molding auxiliary parts that is provided at a portion other than said first cavity in at least one of the die-matching surfaces of said segmental molding dies and a third cavity for holding an auxiliary part produced in said second cavity during a previous molding cycle and that communicates with said supplying a first cavity;pre-molding by supplying resin parison between said segmental molding dies, clamping said segmental molding dies, blowing a compressed gas into said resin parison to expand said resin parison within said first cavity such that said resin parison is pressed against an inner surface of said first cavity, discharging said compressed gas from said resin parison, and opening said segmental molding dies to take out a formed hollow body and a formed auxiliary part; andmain molding by inserting said formed auxiliary part in said third cavity, supplying the resin parison between said segmental molding dies, clamping said segmental molding dies, blowing a compressed gas into said resin parison to expand said resin parison within said first cavity such that said resin parison is pressed against an inner surface of said first cavity, discharging said compressed gas from said resin parison, and opening said segmental molding dies to take out a new auxiliary part and a resin container in which said inserted auxiliary part is integrated with a hollow body,wherein when once said pre-molding step is implemented, said preparing step and said main molding step are repeated.