Container molding and trimming method and apparatus

Details Container molding and trimming method and apparatus Container molding and trimming method and apparatus

1981-09-24

1982-11-30

Welsh, Maurice J.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Flash or sprue removal type

225 99, 425315, 425525, B29C 1712

Patent

active

043615317

ABSTRACT:
A method and apparatus for molding plastic containers and the like and for removing unwanted flash material therefrom. In the molding step, an unwanted tail flash portion is molded to have a weakened area along the line of attachment to the bottom of the container. After ejection from the mold, the container is conveyed to a tail removal device that grips and tears the tail free from the container along the weakened line area by a downward and rearward force.

REFERENCES:
patent: 3172152 (1965-03-01), Uhlig
patent: 3429211 (1969-02-01), Pelot
patent: 3677454 (1972-07-01), Boyer
patent: 3752629 (1973-08-01), Gordon
patent: 3795162 (1974-03-01), Jaeger
patent: 3989786 (1976-11-01), Mehnert
patent: 3994651 (1976-11-01), Kamibayashi
patent: 4124668 (1978-11-01), Frohn

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