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    INJECTION MOLDING MACHINE
    3.
    发明公开
    INJECTION MOLDING MACHINE 审中-公开

    公开(公告)号：EP3578333A1

    公开(公告)日：2019-12-11

    申请号：EP18748469.6

    申请日：2018-01-31

    申请人： Sumitomo Heavy Industries, Ltd.

    发明人： MOROZUMI, Tomohito ,  OGISO, Taro ,  SASAKI, Jun

    IPC分类号： B29C45/20 ,  B29C45/77

    摘要： An injection molding machine includes a nozzle which injects a molding material into a mold unit, a flow path opening/closing mechanism which opens or closes a flow path of the molding material in the nozzle, a cylinder having a front end portion in which the nozzle is provided, a screw which is disposed to be rotatable and movable forward or rearward inside the cylinder, a drive source which drives the screw, and a control unit which controls the flow path opening/closing mechanism and the drive source, in which the flow path opening/closing mechanism includes a valve body which is moved between an open position at which the valve body opens the flow path and a closed position at which the valve body closes the flow path, and after a plasticizing process of accumulating the molding material in a front portion of the cylinder starts and before a filling process of filling an inside of the mold unit with the molding material accumulated in the front portion of the cylinder starts, the control unit executes a control of releasing the fixing of the valve body located at the closed position to enable a movement of the valve body to the open position by a pressure of the molding material accumulated inside the nozzle.

    SPRITZGIESSMASCHINE MIT ETAGENWERKZEUG FÜR SPRITZPRÄGEANWENDUNGEN UND SPRITZPRÄGEVERFAHREN
    7.
    发明公开
    SPRITZGIESSMASCHINE MIT ETAGENWERKZEUG FÜR SPRITZPRÄGEANWENDUNGEN UND SPRITZPRÄGEVERFAHREN 审中-公开

    公开(公告)号：EP3328608A1

    公开(公告)日：2018-06-06

    申请号：EP16747479.0

    申请日：2016-07-28

    申请人： Netstal-Maschinen AG

    发明人： GRANGE, Jean-Luc ,  ITEN, Thomas

    IPC分类号： B29C45/17 ,  B29C45/20 ,  B29C45/32 ,  B29C45/56

    CPC分类号： B29C45/322 ,  B29C45/12 ,  B29C45/1777 ,  B29C45/20 ,  B29C45/561 ,  B29C2045/5615

    摘要： A description is given of an injection-moulding machine with a multi-daylight mould (6) with a snorkel (12), by way of which melt can be fed into a central part (6b) of the multi-daylight mould, wherein the snorkel (12) and the nozzle (11) of the injection unit (2) can be pressed against one another. According to the invention, it is provided that, during the injecting operation, in particular during an injecting operation before and/or during the performance of a compression stroke (HP) of the multi-daylight mould (6), the injection unit (2) can be fixed in a position, seen in the longitudinal direction of the machine, in which the nozzle (11) of the injection unit (2) is pressed against a prestressed, movable part (12c) of the snorkel (12), or in which the snorkel (12) is pressed against a prestressed, movable part (11b) of the nozzle (11) when the multi-daylight mould (6) is in a position for performing a compression stroke (H
    P ). The prestressing of the movable part and the stroke (H
    S , H
    D ) thereof are such that the nozzle (11) and the snorkel (12) remain pressed against one another during the injecting operation.

    AIR-COOLED SPRUE BUSH FOR MOLD
    8.
    发明公开
    AIR-COOLED SPRUE BUSH FOR MOLD 审中-公开
    用于模具的AIR-COOLED SPRUE BUSH

    公开(公告)号：EP3175966A1

    公开(公告)日：2017-06-07

    申请号：EP16162406.9

    申请日：2016-03-24

    申请人： Taiwan Additive Manufacturing Corporation

    发明人： Wu, Chih-Meng

    IPC分类号： B29C45/20 ,  B29C33/04 ,  B29C45/27

    CPC分类号： B29C45/20 ,  B29C33/02 ,  B29C33/046 ,  B29C45/2701 ,  B29C45/2737 ,  B29C2033/042

    摘要： An air-cooled sprue bush (100) is mounted on a mold (200) and contains: a columnar runner body (10) and a flange portion (20). The runner body (10) includes a gate (11) and a cooling path (30) defined in the runner body (10), the cooling path (30) has plural U-shaped channels (31) annularly arranged around the cooling path (30), and each U-shaped channel (31) has a mesh structure formed therein. The flange portion (20) is fixed on the runner body (10) so as to contact with an outer face (201) of the mold (200), and the gate (11) passes through the flange portion (20) and has a feeding orifice (12) formed in the flange portion (20). The flange portion (20) also includes at least one inlet (21) and at least one outlet (22) which are in communication with the cooling path (30) of the runner body (10) and do not contact with the mold (200), such that external gas flows out of the at least one outlet (22) from the at least one inlet (21) via the cooling path (30).

    摘要翻译： 一个空气冷却的浇道套（100）安装在模具（200）上，并包括：一个柱状浇道体（10）和一个凸缘部分（20）。 流道本体10包括限定在流道本体10中的浇口11和冷却通道30，冷却通道30具有环绕冷却通道的多个U形通道31， 30），并且每个U形通道（31）具有形成在其中的网状结构。 凸缘部20以与模具200的外表面201接触的方式固定在浇道本体10上，浇口11穿过凸缘部20， 进料口（12）形成在凸缘部分（20）中。 法兰部分20还包括至少一个入口21和至少一个出口22，其与流道主体10的冷却路径30连通并且不与模具200接触 ），使得外部气体经由冷却路径（30）从所述至少一个入口（21）流出所述至少一个出口（22）。