MOLTEN MATERIAL SUPPLY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a molten material supply device capable of reducing cutting of a fiber material during plastication.MEANS FOR SOLVING THE PROBLEM: There is provided a molten material supply device 12 in which a screw 22 is arranged in a heating cylinder 16 so as to be rotatable and movable backward and forward and a nozzle 15 is arranged in the front portion of the heating cylinder 16, and that plasticizes a resin material M containing a fiber material in the heating cylinder and injects or discharges the plasticized resin material M from the nozzle 15. In the screw 22, a cross-sectional area of a flow channel D5 of the narrowest portion of a check valve 26 is formed so as to be wider than a cross-sectional area D2 of a groove portion of a feed zone 23 of the screw 22.SELECTED DRAWING: Figure 1