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    DEFIBRATION TREATMENT APPARATUS AND FIBER PROCESSING APPARATUS
    1.
    发明申请
    DEFIBRATION TREATMENT APPARATUS AND FIBER PROCESSING APPARATUS 审中-公开

    公开(公告)号：US20200299898A1

    公开(公告)日：2020-09-24

    申请号：US16822158

    申请日：2020-03-18

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Yuta INAGAKI ,  Naoko OMAGARI ,  Masahide NAKAMURA ,  Keigo YAMASAKI

    IPC: D21B1/08 ,  D21F9/04 ,  D04H1/732

    Abstract: A defibration treatment apparatus including a feeding hole through which a material is fed, a rotator that rotates about a rotational central axis, a fixed member that covers at least a portion of the rotator, and a discharge opening that discharges a defibrated object obtained by defibrating the material between the rotator and the fixed member. In the defibration treatment apparatus, the rotator includes a plurality of rotary blades that extend in directions away from the rotational central axis, at least a portion of the fixed member is configured of a screen including a plurality of openings, the screen is disposed at a position corresponding to an outer rotational circumference of the rotator, and a discharge path in communication with the discharge opening is provided along the screen and on a side opposite the rotator with respect to the screen.

    SHEET MANUFACTURING APPARATUS
    4.
    发明公开
    SHEET MANUFACTURING APPARATUS 审中-公开

    公开(公告)号：US20240093430A1

    公开(公告)日：2024-03-21

    申请号：US18466026

    申请日：2023-09-13

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Hidemasa KANADA ,  Yoshiyuki NAGAI ,  Masanao FUKASAWA ,  Kazuma MIYAZAWA ,  Masahide NAKAMURA

    IPC: D21F9/00 ,  D21H19/34

    CPC classification number: D21F9/00 ,  D21H19/34

    Abstract: There is provided a sheet manufacturing apparatus including: an accumulation section that accumulates a material containing fibers by an air flow to form a web; a humidification section that applies moisture from one surface side of the web; and a pressurization section that pressurizes the humidified web to form a sheet, in which the pressurization section includes a first roller that comes into contact with one surface of the web and a second roller that comes into contact with the other surface of the web, and a surface of the first roller is harder than a surface of the second roller.

    SHEET MANUFACTURING APPARATUS
    5.
    发明申请
    SHEET MANUFACTURING APPARATUS 有权

    公开(公告)号：US20210206019A1

    公开(公告)日：2021-07-08

    申请号：US15998938

    申请日：2017-01-24

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Kazuma MIYAZAWA ,  Toshiaki YAMAGAMI ,  Masahide NAKAMURA

    IPC: B27N3/18 ,  D04H1/72 ,  B27N3/04 ,  D21B1/06 ,  D21F11/00

    Abstract: A sheet manufacturing apparatus includes a coarse crushing portion that crushes a raw material containing a fiber into coarse crushed pieces, a defibrating portion that defibrates the coarse crushed pieces into a defibrated material, a sieve portion that includes a plurality of openings, a sheet forming portion that uses the defibrated material passing through the opening of the sieve portion to form a sheet, and a transport passage that transports the defibrated material, which has not passed through the opening of the sieve portion, between the coarse crushing portion and the defibrating portion.

    SHEET MANUFACTURING APPARATUS
    6.
    发明申请
    SHEET MANUFACTURING APPARATUS 审中-公开

    公开(公告)号：US20170350073A1

    公开(公告)日：2017-12-07

    申请号：US15686237

    申请日：2017-08-25

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Naoko OMAGARI ,  Naotaka HIGUCHI ,  Masahide NAKAMURA ,  Minoru OTAGIRI

    IPC: D21F9/00 ,  D04H1/00 ,  D21B1/06 ,  D04H1/732 ,  D21F7/06 ,  D21B1/08

    CPC classification number: D21F9/00 ,  D04H1/00 ,  D04H1/732 ,  D21B1/068 ,  D21B1/08 ,  D21F7/06 ,  Y02W30/642

    Abstract: A sheet manufacturing apparatus includes an impeller mill, a first sieve, a first belt, a rotary body, a second sieve, a second belt, and a heating roller. The impeller mill defibrates a raw material containing fiber and discharges a defibrated material. The first sieve screens the defibrated material by causing the defibrated material to pass through a first net. The defibrated material passing through the first sieve is deposited on the first belt to form a web. The rotary body has a protrusion radially protruded from a rotation center and divides the web by rotation to form a subdivided body. The second sieve refines the subdivided body by causing the subdivided body to pass through the second net to form a web. The refined subdivided body is deposited on the second belt to form a web. The heating roller heats the web from the second belt to form a sheet.

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