Automatic color pellet selecting and supplying apparatus for inj

Details Automatic color pellet selecting and supplying apparatus for inj Automatic color pellet selecting and supplying apparatus for inj

1992-05-01

1994-02-01

Sotelo, Jesus D.

Dispensing

Automatic control

Constant weight, volume or pressure control by output

222 64, B67D 508

Patent

active

052825485

ABSTRACT:
An apparatus for automatically selecting one from color pellets of different colors and automatically supplying it to an injection molding machine, comprises: an auxiliary hopper connected to a pellet supply portion of the injection molding machine via an automatic change-over valve; a negative pressure device for causing the auxiliary hopper, at the upstream side chamber, to be under negative pressure; a pellet feed pipe connected to the upstream side chamber of the auxiliary hopper; and storage tanks for storing the respective color pellets, each storage tank being connected to the pellet feed pipe via a respective automatic change-over valve.

REFERENCES:
patent: 4955550 (1990-09-01), Satake et al.
patent: 5110521 (1992-05-01), Moller

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