B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/518
B29C 17/07 (1980.01) B29D 23/03 (1980.01)
Patent
CA 1093774
Armour & Olmsted Case 1 INJECTION-BLOW MOLDING MACHING HAVING NON-SPLITTING INJECTION AND BLOW MOLDS Abstract of the Disclosure An injection-blow molding machine is provided with non- splitting injection and blow molds mounted in stationary relation- ship on a first platen with the axes of the molds parallel with each other and with a spindle situated equidistant from the molds. Parison pins which cooperate with the two molds are mounted on a second movable platen connected to the end of the spindle and are inserted and withdrawn from the molds as the spindle and the second platen are reciprocated toward and away from the molds. The second platen is also rotatable about the spindle axis to permit the parison pins to be indexed between the injection and blow molds so that parisons can be formed in the injection mold and transferred to the blow mold where a final article such as a container is formed. Neckring segments are mounted on the second platen in cooperative relationship with the parison pins to form the neck portion of a container, and the neckring segments include projecting portions which mate with annular grooves around the mouth of the blow mold to define a shoulder of the blown container between the mouth of the non-splitting mold and the neck of the container. - 1 -
292658
Armour Donald F.
Olmsted Bernie A.
Fetherstonhaugh & Co.
Hercules Incorporated
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