Process for controlling the hot-runner heating of a multicavity

Details Process for controlling the hot-runner heating of a multicavity Process for controlling the hot-runner heating of a multicavity

1998-09-08

2000-07-18

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264 405, 264 407, 2642972, 2643288, 26432815, 425144, 425145, 425549, B29C 4576

Patent

active

06090318&

ABSTRACT:
To obtain simultaneous filling of all cavities (K1-K4) in multicavity injection moulds, the mould cavity pressure (p) patterns in all cavities (K1-K4) are detected and the times (t1-t4) measured from the beginning of filling till a suitably chosen reference pressure (pR) is reached for each cavity (K1-K4). By interventions in the individual heating systems of the individual hot runners (5), the temperatures in these are altered to bring the measured times of the individual cavities more in line.

REFERENCES:
patent: 5356575 (1994-10-01), Krosse et al.
patent: 5419858 (1995-05-01), Hata et al.
patent: 5514311 (1996-05-01), Shimizu et al.
patent: 5518389 (1996-05-01), Nonomura et al.
patent: 5556582 (1996-09-01), Kazmer
patent: 5648105 (1997-07-01), Shimazu et al.
patent: 5665283 (1997-09-01), Bader
patent: 5766526 (1998-06-01), Watanabe
patent: 5773038 (1998-06-01), Hettinga
patent: 5993704 (1999-11-01), Bader

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