Automatic color pellet selecting and supplying apparatus for injection molding machine
AssigneeYoshida Kogyo K. K.
InventorKiyomitsu Ishihara
Life of this patent
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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.
Claims4
An apparatus for automatically selecting one from color pellets of different colors and for automatically supplying the selected one color pellet to an injection molding machine, comprising:
- (a) an auxiliary hopper adapted to be connected to a pellet supply portion of the injection molding machine and divided into two chambers an upstream side chamber and a downstream side chamber, by an automatic change-over valve;
- (b) a negative pressure means for causing said auxiliary hopper, at the upstream side chamber, to be under negative pressure;
- (c) a pellet feed pipe adapted to be connected to the upstream side chamber of said auxiliary hopper;
- and
- (d) a number of storage tanks for storing the respective color pellets, each of said storage tanks being adapted to be connected to said pellet feed pipe via a respective automatic change-over valve.
Dependencies are inferred from the claim text.