Injection stretch blow molding apparatus with preform heating an

Details Injection stretch blow molding apparatus with preform heating an Injection stretch blow molding apparatus with preform heating an

1998-03-31

2000-08-29

Davis, Robert

Plastic article or earthenware shaping or treating: apparatus

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

With heating or cooling means

425529, 425534, B29C 3108, B29C 4906, B29C 4964

Patent

active

061099074

ABSTRACT:
A blow molding apparatus for blow molding a preform into a container has a rectangular carrying path, carrier members each of which supports and carries the preform and container, an endless carrying member for circulatorily driving the carrier members along the path, a first transferring portion for transferring the preform supplied from outside of the apparatus to at least one of the carrying members, a heating section for heating the preform supported by the at least one carrying member, a blow molding section for blow molding the heated preform into the container, a second transferring portion for transferring the blow molded container outside of the apparatus, at least one guidable member disposed at each of the carrying members, and at least one guide member for guiding the at least one guidable member in each of the carrying members in order to transfer each of the carrying members along the rectangular carrying path. The heating section preferably has a plurality of first heaters on one side of the path, spaced apart in a vertical direction and extending in a preform carrying direction, a reflecting plate facing the first heaters across the path, and a plurality of second heaters extending in the preform carrying direction on both sides of the path, and positioned at such a height in the vertical direction that the second heaters face regions subject to blow molding in the vicinities of the neck portions of the preforms.

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