Injection of plastic in molding machine

Details Injection of plastic in molding machine Injection of plastic in molding machine

B - Operations, Transporting

29

D

18/682

B29D 23/03 (1980.01) B29F 1/00 (1980.01)

Patent

CA 1087821

INJECTION OF PLASTIC IN MOLDING MACHINE ABSTRACT OF THE DISCLOSURE The invention reduces the time that a core rod must remain at an injection station of a plastic blow molding machine. The injection operation is usually performed by a plasticizer, and while the injection operation itself requires very little time, the plasticizer performs other roles that must be complete before the next injection. This invention uses two plasticizers alternately so that one can inject while the other recovers for its next injection opera- tion. A plastic pump is used to relieve the plasticizers of some of the operations that they previously performed. -1-

236965

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