Method of multi-material injection moulding

Details Method of multi-material injection moulding Method of multi-material injection moulding

1976-01-19

1978-02-14

Kucia, Richard R.

Plastic and nonmetallic article shaping or treating: processes

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

Flash or sprue removal type

264245, 264246, 264247, B29F 112

Patent

active

040738540

ABSTRACT:
The invention discloses a process of multi-material moulding using a novel material guidance device or transfer plate which also acts as a transport mechanism to guide, from one moulding station, a partially moulded component or article, along a controlled flow path, to another station and to register the said article into the requisite second cavity thereat for subsequent moulding of another mould material. The transport mechanism, on arrival at the second station, may, but need not, be stripped away from the partially moulded component contained thereon, but only after the article is disposed into the registration within a subsequent or second cavity located at the second mould station. Under the preferred embodiment, the transfer plate acts as a core member to the mould of the cavity during at least one moulding step; in its simplest form the transfer plate is flat.

REFERENCES:
patent: 2279208 (1942-04-01), Shaw
patent: 2492973 (1950-01-01), Dofsen
patent: 2671933 (1954-03-01), Nye
patent: 2766482 (1956-10-01), Heibel
patent: 3031722 (1962-05-01), Gits
patent: 3702750 (1972-11-01), Veneria
patent: 3776998 (1973-12-01), Church
patent: 3822107 (1974-07-01), Wogerer

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