Injection blow molding machine

Details Injection blow molding machine Injection blow molding machine

1990-01-22

1991-07-16

Heitbrink, Timothy

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

Including means to prepare parison

1565836, 264538, 425534, 425540, B29C 4906

Patent

active

050320777

ABSTRACT:
An injection blow molding machine construction utilizes pairs of C-shaped cut plate members to support clamps for the injection mold and for the blow mold, respectively. The injection molding frame members are angularly disposed at 60 degrees with respect to the blow molding frame members. The frame members are co-mounted at the ends of the C-shaped members to a pre-stressed central vertically disposed column or post. The respective injection mold and blow mold clamp forces are transmitted to the respective frame members and in turn to the column in a balanced manner to avoid flexure of the plate members. The present construction reduces the bulk of conventional injection blow molding machines, eliminates weldments and provides for ready assembly for the machine and ready access to the molds so as to reduce downtime.

REFERENCES:
patent: 3832101 (1974-08-01), Rainville
patent: 3847520 (1974-11-01), Plum Hans
patent: 3877859 (1975-04-01), Grazine
patent: 3943219 (1976-03-01), Aoki

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