Conveyors: power-driven – Conveyor for changing attitude of item relative to conveyed... – For inverting successive items
Patent
1984-11-05
1989-04-11
Valenza, Joseph E.
Conveyors: power-driven
Conveyor for changing attitude of item relative to conveyed...
For inverting successive items
198389, 1984701, B65G 4724
Patent
active
048197858
ABSTRACT:
Cylindrical plastic pieces (i.e., preforms) each with a bottom are supplied one by one to jigs circulated through the heating and blowing mold of a biaxial-orientation blow-molding machine. The pieces are formed of polyethylene terephthalate material to obtain transparent thin-walled bottle-shaped containers, and are formed in cylindrical shape each with a semispherical bottom and a prefinished neck portion molded simultaneously in large number by an injection molding machine. The device for supplying the pieces has a piece aligning unit for temporarily retaining the pieces molded simultaneously by the injection molding machine and accumulated in various orientations at random and exhausting the pieces one by one therefrom to meet the molding velocity of a blow-molding machine, a rope conveyor for sequentially conveying the pieces exhausted from the piece aligning unit in a neck portion upward position as suspended therefrom, a piece inverting mechanism for attracting and holding the pieces conveyed via the rope conveyor and inverting the pieces to neck portion downward position during the turning operation of the pieces at substantially 180.degree. in a horizontal plane, a jig feeding mechanism for feeding jigs circulated at the heating and blowing mold of the blow-molding machine at predetermined pitch to the vicinity of the piece inverting mechanism, and a piece inserting mechanism for clamping the piece attracted and held by the piece inverting mechanism via a pair of clamp pawls and downwardly moving the piece while stepwisely rotating the piece substantially at 90.degree. in a horizontal plane thereby to insert the piece into the jig of the jig feeding mechanism.
REFERENCES:
patent: 1757211 (1930-05-01), Parker
patent: 2609943 (1952-09-01), Winder
patent: 3127210 (1964-03-01), Schreiber
patent: 3319764 (1967-05-01), Gamberini
patent: 3490575 (1970-01-01), Herrmann
patent: 3982625 (1976-09-01), Wentz et al.
patent: 4391372 (1983-07-01), Calhoun
Ichizawa Yoshiyuki
Nomoto Tsugio
Valenza Joseph E.
Yoshino Kogyosho Co. Ltd.
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