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    System of manufacturing injection molded article and metal mold
    1.
    发明授权
    System of manufacturing injection molded article and metal mold 有权

    公开(公告)号：US11931936B2

    公开(公告)日：2024-03-19

    申请号：US17901927

    申请日：2022-09-02

    Applicant: DENSO CORPORATION

    Inventor： Tohru Higuchi ,  Masato Ichikawa ,  Tsuyoshi Arai ,  Jun Hasebe ,  Atsushi Kawamura ,  Tomoyoshi Murata

    IPC: B29C45/27 ,  B29C45/16

    CPC classification number: B29C45/2701 ,  B29C45/16

    Abstract: In an injection process, molten resin is successively injected from a first flow channel and a second flow channel connected with each other in order into a cavity of a metal mold. High-temperature resin existing in the first flow channel is injected in advance into the cavity as a part of a single shot of molten resin to later form a skin layer of a molded article. Other low temperature resin near a flowable limit existing in the second flow channel is subsequently injected into the cavity as another part of the single shot of molten resin to later form a core layer of the molded article. A low temperature resin remaining in the first flow channel when injection is completed is warmed to be a high-temperature resin before the next cycle, thereby allowing successive molding of molded articles.

    Valve device
    4.
    发明授权
    Valve device 有权

    公开(公告)号：US11333258B2

    公开(公告)日：2022-05-17

    申请号：US17105878

    申请日：2020-11-27

    Applicant: DENSO CORPORATION

    Inventor： Shingo Sato ,  Yuto Sato ,  Masato Ichikawa ,  Akihiko Goto ,  Tadashi Ikemoto ,  Ryo Nomura ,  Ryuki Tsuji ,  Takahito Suzuki ,  Shogo Kanzaki

    IPC: F16K11/076 ,  F16K27/04 ,  F01P3/02 ,  F01P5/10 ,  F01P7/14

    Abstract: A housing has a housing main body and an outlet port. The housing main body includes a cylindrical housing inner wall that defines an internal space therein. The outlet port fluidly connects the internal space and an outside of the housing main body to each other. The valve has a valve body rotatable about an rotation axis along a rotation axis of the cylindrical housing inner wall. The valve is configured to selectively open and close the outlet port depending on a rotation position of the valve. The housing inner wall is formed such that a distance between the housing inner wall and the axis of the housing inner wall varies in a circumferential direction.

    Molding die and die-exchanging method
    5.
    发明授权
    Molding die and die-exchanging method 有权

    公开(公告)号：US10207441B2

    公开(公告)日：2019-02-19

    申请号：US15512250

    申请日：2015-11-12

    Applicant: DENSO CORPORATION

    Inventor： Atsushi Kawamura ,  Masato Ichikawa ,  Masami Gotoh ,  Tsuyoshi Arai

    IPC: B29C45/26 ,  B29C33/30 ,  B29C45/40 ,  B30B11/00 ,  B29C45/17 ,  B29C45/84 ,  B29C45/38 ,  B29C45/67

    Abstract: A molding die has a lower holder, an intermediate holder, an upper holder, a lock member, an upper link bar, a lower link bar, a restriction member, and a drive part. A movement of the lock member in a molding die opening direction or a molding die closing direction is restricted by the intermediate holder. The upper link bar has a first retaining groove in which the lock member fits when being located at a molding die closing position. The lower link bar has a second retaining groove in which the lock member fits and a release portion that enables the lock member to be released from the first retaining groove. The restriction member is movable between a restriction position that prevents the lock member from fitting in the second retaining groove and a free position that enables the lock member to fit in the second retaining groove.

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