Molding screw, free blend injection molding machine, and free blend-type resin molded body manufacturing method

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12226940
APP PUB NO 20220227033A1
SERIAL NO

17595952

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Importance

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Abstract

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Provided are a molding screw and an FBI molding machine using the same for manufacturing resin molded articles for reduced manufacturing variation with use of a resin powder, an additive, and a mixture material constituted by an inorganic material or an organic material. The molding screw can include a feeding portion for feeding a molding material, a compressing portion, and a metering portion that extend continuously from the feeding portion. The feeding portion and the compressing portion each can be provided with a spiral flight. The flight of the compressing portion can include multiple sub flights that extend in a spiral manner in a screw axis direction. The sub flights can each have a polygonal shape with rounded corner portions, and are arranged such that the corner portions are shifted by a set angle with respect to the screw axis.

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Patent Owner(s)

  • DAIICHI SEIKOSHA CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishida, Yasuhiko Osaka, JP 62 684

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