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公开(公告)号：US11008707B2
公开(公告)日：2021-05-18
申请号：US16117538
申请日：2018-08-30
Applicant: SEIKO EPSON CORPORATION
Inventor： Kaneo Yoda , Yoshiyuki Nagai , Yuki Oguchi , Shigeo Fujita , Akira Arai , Kazuhiro Ichikawa , Teruaki Oguchi , Seiichi Taniguchi
Abstract: Provided is technology improving the efficiency (productivity) of a sheet manufacturing apparatus. A sheet manufacturing apparatus 100 manufactures sheets S by heating with heaters 81 and 82 a mixture (second web W2) of resin and fiber produced by defibrating feedstock MA. The heaters 81 and 82 each have a first roller 171, a second roller 172 that holds the second web W2 with the first roller 171, and a moving mechanism 190. The moving mechanism 190 can switch the first roller 171 and second roller 172 to a position holding the second web W2, and a first roller 171 and second roller 172 are separated and do not hold the second web W2. The heaters 81 and 82 are configured as units that can removably installed to the sheet manufacturing apparatus 100.
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公开(公告)号：US11891722B2
公开(公告)日：2024-02-06
申请号：US17315392
申请日：2021-05-10
Applicant: SEIKO EPSON CORPORATION
Inventor： Katsuhito Gomi , Yuki Oguchi
CPC classification number: D01B9/00 , B01F27/90 , B65G33/08 , B01F27/17 , D10B2211/01
Abstract: A screw feeder 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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公开(公告)号：US09463579B2
公开(公告)日：2016-10-11
申请号：US14625029
申请日：2015-02-18
Applicant: SEIKO EPSON CORPORATION
Inventor： Yuki Oguchi
Abstract: A sheet manufacturing apparatus includes a defibrating unit configured to defibrate material containing fibers in the air, a classifying unit configured to classify by airflow defibrated material, which has been defibrated at the defibrating unit, into fiber material and waste material, a deposition unit configured to deposit the fiber material to create deposited material, a discharge blower configured to discharge the waste material by airflow from the classifying unit such that the waste material does not move toward a side of the deposition unit, a transfer blower configured to transfer by airflow the fiber material from the classifying unit to the deposition unit, and a forming unit configured to form a sheet by using the deposited material. When manufacturing by the sheet manufacturing apparatus starts, the discharge blower is driven before the transfer blower.
Abstract translation: 一种片材制造装置，包括：解纤维构件，用于对包含空气中的纤维的材料进行去纤维化;分类单元，其被配置为通过在解纤维单元被解纤的气流脱纤维分类成纤维材料和废料;沉积单元， 沉积纤维材料以产生沉积材料;排放鼓风机，其构造成通过来自分级单元的气流排出废料，使得废料不朝向沉积单元的侧面移动;传送鼓风机，其被配置成通过气流传递纤维 从分级单元到沉积单元的材料，以及通过使用沉积材料形成片材的成形单元。 当通过片材制造设备的制造开始时，排出鼓风机在传送鼓风机之前被驱动。
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公开(公告)号：US11746469B2
公开(公告)日：2023-09-05
申请号：US17331708
申请日：2021-05-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Yuki Oguchi
CPC classification number: D21B1/08 , B02C7/16 , B02C23/28 , B02C25/00 , D21G1/0253
Abstract: A fiber structure manufacturing apparatus that includes: a defibration unit that pulverizes and defibrates a raw sheet material that contains fibers; a transportation unit that transports a defibrated material after defibration by the defibration unit; a forming unit that forms a fiber structure from the defibrated material transported by the transportation unit; a temperature acquisition unit that acquires a temperature inside the defibration unit; and a control unit that controls a mass flow of gas that contains the defibrated material transported from the defibration unit in accordance with the temperature acquired by the temperature acquisition unit.
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公开(公告)号：US11384482B2
公开(公告)日：2022-07-12
申请号：US16675315
申请日：2019-11-06
Applicant: SEIKO EPSON CORPORATION
Inventor： Isao Inaba , Masahide Nakamura , Kazuma Miyazawa , Yuki Oguchi , Isamu Arai
Abstract: A web manufacturing apparatus includes a transport section configured to transport a web containing fiber, a web humidifier configured to humidify the web, and a control section configured to control operation of the transport section and the web humidifier. When transportation of the web by the transport section is stopped, the control section causes the transport section to recommence transportation of the web after the web is humidified by the web humidifier. The control section may also cause the web humidifier to stop humidification of the web after the web humidifier starts humidification of the web and a predetermined duration elapses.
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Patent Agency Ranking
公开(公告)号：US11313078B2
公开(公告)日：2022-04-26
申请号：US16328330
申请日：2017-08-03
Applicant: SEIKO EPSON CORPORATION
Inventor： Yuki Oguchi , Takao Mikoshiba
Abstract: An accumulating unit that discharges fibers by rotating a drum unit in which a plurality of openings are formed, a second web forming unit that forms a second web by operating a mesh belt, a sheet forming unit that forms a sheet from the second web, and a control unit that performs a start control for operating the accumulating unit and the second web forming unit from the stop state are included. In a case where the start control is performed from a state where the fibers are present in the drum unit, the control unit adjusts a thickness of the second web by controlling at least one of a timing at which rotation of the drum unit is initiated, a rotational speed of the drum unit, a timing at which movement of the mesh belt is initiated, and a movement speed of the mesh belt.
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公开(公告)号：US11193238B2
公开(公告)日：2021-12-07
申请号：US16328347
申请日：2017-08-03
Applicant: SEIKO EPSON CORPORATION
Inventor： Yuki Oguchi , Takao Mikoshiba
IPC: B27N3/04 , B27N3/26 , D04H1/732 , D21B1/06 , D21G9/00 , D21H23/20 , D21F9/02 , D21F7/00 , D21H17/33
Abstract: A defibrating unit that defibrates a raw material including fibers in an atmosphere, an accumulating unit that discharges defibrated matter by rotating a drum unit in which a plurality of openings are formed, a second web forming unit that forms a second web by operating a mesh belt on which the defibrated matter is accumulated, a sheet forming unit that forms a sheet from the second web, a cutting unit that cuts the sheet into a preset size, and a control unit that executes a stop control with a cut operation of the cutting unit as a trigger in a case where an instruction to stop an apparatus is provided are included. In the stop control, the control unit stops operation of the defibrating unit after stopping rotation of the drum unit and movement of the mesh belt.
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公开(公告)号：US11005133B2
公开(公告)日：2021-05-11
申请号：US16328337
申请日：2017-08-04
Applicant: SEIKO EPSON CORPORATION
Inventor： Yuki Oguchi , Masahide Nakamura
IPC: D21F7/06 , H01M50/124 , B27N3/18 , B65H20/04 , D04H1/60 , D04H1/732 , D21B1/06 , B32B7/12 , B32B15/09 , B32B15/20 , B32B27/08 , B32B27/36 , C22C21/00 , B29L7/00
Abstract: A sheet manufacturing apparatus includes a second web forming unit that processes fibers into a web shape, a sheet forming unit that pinches and transports a second web processed into the web shape by the second web forming unit, and a control unit that controls at least any of a pressing state and a transport state in the sheet forming unit. The control unit causes the second web to pass through a nip unit by controlling at least any of a transport speed of the sheet forming unit, a nip pressure of the sheet forming unit, and a nip width of the sheet forming unit depending on a position of a leading edge of the second web with respect to the nip unit in which the sheet forming unit pinches the second web.
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公开(公告)号：US11077581B2
公开(公告)日：2021-08-03
申请号：US16497473
申请日：2018-02-22
Applicant: SEIKO EPSON CORPORATION
Inventor： Kaneo Yoda , Yoshiyuki Nagai , Yuki Oguchi , Shigeo Fujita , Akira Arai , Kazuhiro Ichikawa , Teruaki Oguchi , Seiichi Taniguchi
Abstract: A sheet manufacturing apparatus is an apparatus that heats a material containing fibers to form a sheet, and includes a heating portion that heats the material, and a control portion that controls a temperature at which the heating portion heats the material. The control portion sets a temperature of the heating portion to a first temperature in a first state where the sheet manufacturing apparatus manufactures the sheet, and sets the temperature of the heating portion to a second temperature lower than the first temperature at a predetermined timing in a second state where the sheet is not manufactured, or at a predetermined timing when a state of the sheet manufacturing apparatus is shifted to the state where the sheet is not manufactured.
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公开(公告)号：US10858783B2
公开(公告)日：2020-12-08
申请号：US15779632
申请日：2016-11-17
Applicant: SEIKO EPSON CORPORATION
Inventor： Yuki Oguchi
Abstract: A sheet manufacturing apparatus includes a defibrating unit that defibrates a raw material containing a fiber in air; a mixing unit that mixes a defibrated material defibrated by the defibrating unit and a resin in air; a web forming unit that forms a web by accumulating the mixture mixed by the mixing unit on a moving body; a transporting unit that transports the web; a sheet forming unit that forms a sheet from the web; a setting unit that sets a thickness of the sheet; and a controller that controls a moving speed of the moving body and a transporting speed of the web transported by the transporting unit, in accordance with the thickness of the sheet set by the setting unit.
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