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    INJECTION DEVICE AND SCREW
    1.
    发明公开
    INJECTION DEVICE AND SCREW 审中-公开
    注射装置和螺杆

    公开(公告)号：EP3278950A1

    公开(公告)日：2018-02-07

    申请号：EP16768761.5

    申请日：2016-03-22

    申请人： Sumitomo Heavy Industries, Ltd.

    发明人： FUKUMURA, Hideo ,  ISHIDA, Hironobu

    IPC分类号： B29C45/60 ,  B29B7/42 ,  B29C45/47 ,  B29C45/54

    CPC分类号： B29B7/42 ,  B29C45/47 ,  B29C45/50 ,  B29C45/54 ,  B29C45/60 ,  B29C47/6018 ,  B29C47/6025 ,  B29C47/6075 ,  B29C47/625

    摘要： [Task] Provided is an injection unit in which whirling of a screw is suppressed and the friction between the screw and a cylinder is reduced.
    [Means for Resolution] An injection unit includes: a cylinder which heats a molding material; and a screw which is rotatably disposed in the cylinder, in which the screw has a rotary shaft, a helical flight which protrudes from an outer periphery of the rotary shaft, and a helical partition flight which partitions a groove which is formed by the flight, and feeds the molding material from the upstream side to the downstream side along the rotary shaft by rotation of the rotary shaft, the flight has a different diameter flight portion in which the height of a downstream-side end portion of a top is lower than the height of an upstream-side end portion of the top, and an upstream end of the partition flight is disposed on the further upstream side with respect to a downstream end of the different diameter flight portion.

    摘要翻译： [作用]提供一种注射单元，其中螺杆的旋转被抑制并且螺杆和缸体之间的摩擦被减小。 [解决手段]注射单元包括：加热成型材料的气缸; 以及可旋转地设置在气缸中的螺杆，其中螺杆具有旋转轴，从旋转轴的外周突出的螺旋形螺纹以及分隔由螺纹形成的凹槽的螺旋分隔螺纹， 并且通过旋转轴的旋转而沿着旋转轴从上游侧向下游侧供给成形材料，该螺旋片具有不同直径的飞行部分，其中顶部的下游侧端部的高度低于 顶部的上游侧端部的高度以及分隔翼的上游端相对于不同直径飞行部的下游端布置在更上游侧。

    INJECTION DEVICE AND SCREW
    2.
    发明公开
    INJECTION DEVICE AND SCREW 审中-公开
    注射装置和螺杆

    公开(公告)号：EP3275617A1

    公开(公告)日：2018-01-31

    申请号：EP16768756.5

    申请日：2016-03-22

    申请人： Sumitomo Heavy Industries, Ltd.

    发明人： FUKUMURA, Hideo ,  ISHIDA, Hironobu

    IPC分类号： B29C45/60 ,  B29B7/42 ,  B29C45/47 ,  B29C45/54

    CPC分类号： B29B7/42 ,  B29C45/47 ,  B29C45/50 ,  B29C45/54 ,  B29C45/60 ,  B29C47/0009 ,  B29C47/44 ,  B29C47/6018 ,  B29C47/6025 ,  B29C47/6075 ,  B29C47/62 ,  B29C47/625

    摘要： [Task] Provided is an injection unit in which whirling of a screw is suppressed and the friction between the screw and a cylinder is reduced.
    [Means for Resolution] An injection unit includes: a cylinder which heats a molding material; and a screw which is rotatably disposed in the cylinder, in which the screw has a rotary shaft, and a helical flight which protrudes from an outer periphery of the rotary shaft, and feeds the molding material from an upstream side to a downstream side along the rotary shaft by rotation of the rotary shaft, the flight has a helical first flight portion, and a helical second flight portion which is disposed on the further downstream side with respect to the first flight portion, the second flight portion is a different diameter flight portion in which a height of a downstream-side end portion of a top is lower than a height of an upstream-side end portion of the top, and the ratio of a flight width of the second flight portion to a pitch of the second flight portion is larger than the ratio of a flight width of the first flight portion to a pitch of the first flight portion.

    摘要翻译： [作用]提供一种注射单元，其中螺杆的旋转被抑制并且螺杆和缸体之间的摩擦被减小。 [解决手段]注射单元包括：加热成型材料的气缸; 以及可旋转地设置在所述气缸中的螺杆，其中所述螺杆具有旋转轴和从所述旋转轴的外周突出的螺旋刮板，并且沿着所述旋转轴的上游侧向下游侧供应所述成型材料 旋转轴通过旋转轴的旋转而旋转，所述螺旋片具有螺旋形的第一螺旋部分和螺旋形的第二螺旋部分，所述螺旋形的第二螺旋部分相对于所述第一螺旋部分设置在更下游侧，所述第二螺旋部分是不同直径的螺旋部分 其中顶部的下游侧端部的高度低于顶部的上游侧端部的高度，并且第二刮板部分的刮板宽度与第二刮板部分的间距之比 大于第一螺纹部分的螺纹宽度与第一螺纹部分的螺距之比。