Heating blow-molding machine

Details Heating blow-molding machine Heating blow-molding machine

1979-12-17

1981-11-10

Silbaugh, Jan H.

Plastic article or earthenware shaping or treating: apparatus

With means to retard or stop moving element

264535, 425526, 425534, 425539, 425540, B29C 1707

Patent

active

042995493

ABSTRACT:
This heating blow-molding machine fabricates a number of bottle-shaped containers from biaxially oriented plastic pieces or parisons by supplying the plastic pieces to a heating unit to heat them to the orientation temperature and then supplying them to 12-station rotary blow molding machine for biaxial orientation. Each of the plastic pieces or parisons is made of polyethylene terephthalate resin to provide a thin-walled transparent bottle-shaped container of cylindrical shape with one bottom and a prefinished neck portion injection molded simultaneously in numerous number by an injection molding machine. This blow-molding machine consists of a turntable for the heating unit, a turntable for a blow-molding machine, and a turntable for loading and unloading the pieces and the products blow-molded from the pieces. Each of the turntables is continuously turned in predetermined direction at an intrinsic speed set with respect to the number of stations provided thereat, the time required for heating the pieces, and another time required for blow-molding and cooling the pieces, etc. Further, a rotor is employed to transfer the pieces or container products between the turntables rotated at their intrinsic speeds, respectively. The rotor is rotated according to a speed curve at a moving speed equal to the peripheral speed of the turntable opposite to the turntable for transferring the pieces held thereby at the holding portions.

REFERENCES:
patent: 3599280 (1971-08-01), Rosenkranz et al.
patent: 4214860 (1980-07-01), Kleimenhagen et al.

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