CPC D01B 9/00 (2013.01) [B01F 27/90 (2022.01); B65G 33/08 (2013.01); B01F 27/17 (2022.01); D10B 2211/01 (2013.01)] | 5 Claims |
1. A fiber structure manufacturing apparatus, comprising:
a dry defibrator that pulverizes and defibrates a raw material that contains fibers;
a transportation unit that transports a defibrated material after defibration by the dry defibrator;
a material supply unit that supplies a material to the transportation unit;
a fiber structure forming unit that forms a fiber structure from the defibrated material transported by the transportation unit, wherein
the material supply unit includes
a case that includes a material putting-in portion through which a fluff material is put in and a material putting-out portion through which the fluff material is put out below the material putting-in portion; and
a screw that includes a rotational shaft and a blade portion, the rotational shaft being provided rotatably inside the case, the blade portion being spirally mounted on the rotational shaft; wherein
the screw is rotated with repeated alternation of a slope-down direction in which the blade portion slopes downward spirally in a vertical direction and a slope-up direction in which the blade portion slopes upward spirally in the vertical direction.
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