VERFAHREN ZUM BETREIBEN EINER SPRITZGIESSMASCHINE

    公开(公告)号:EP3294519A1

    公开(公告)日:2018-03-21

    申请号:EP16739509

    申请日:2016-07-19

    IPC分类号: B29C45/76 B29C45/47 B29C45/50

    摘要: The invention relates to a method for operating an injection-moulding machine, having at least one plasticization device (2, 3) with at least one plasticization screw (3) which can be driven in rotation about a screw longitudinal axis (5) and so as to be movable in translation along the screw longitudinal axis (5), wherein, by way of the plasticization device (2, 3), a plastics melt (14) for injection into a mould cavity is provided in a screw antechamber (9), wherein, for the injection of the plastics melt (14) into the mould cavity, that is to say at least during an injection phase and during a follow-up pressure phase, the plasticization screw (3) is driven both in translation and in rotation by way of at least one drive device, wherein the driving of the plasticization screw (3) in rotation is performed with a rotational speed (n
    scr ) such that a backflow (m
    druck ) of the melt from the screw antechamber (9) back into screw flights (71) of the plasticization screw (3) owing to a translational injection movement of the plasticization screw (3) has superposed on it an opposing delivery flow (m
    schlepp ) effected by way of the rotation of the plasticization screw (3), wherein a flow difference (m
    Δ ) between backflow (m
    druck ) and opposing delivery flow (mschlepp) arises, and the flow difference (m
    Δ ) is, at least during the injection phase, influenced by influencing of the rotational speed (n
    scr ) of the plasticization screw (3), and the method is performed without using a backflow preventer.

    INJECTION UNIT
    9.
    发明公开
    INJECTION UNIT 审中-公开
    注射单元

    公开(公告)号:EP3222403A1

    公开(公告)日:2017-09-27

    申请号:EP17160991.0

    申请日:2017-03-15

    IPC分类号: B29C45/77

    摘要: The present invention provides an injection unit in which a longitudinal dimension can be shortened. An injection molding machine includes a cylinder (41) in which a molding material is supplied to the inside, a front support (51) to which a rear end portion of the cylinder (41) is attached, an injection member (43) which is rotatable and movable forward and backward inside the cylinder (41), a rotation drive portion (45) which rotates the injection member (43), a rear support (53) which supports the rotation drive portion (45) and the injection member (43) and moves forward and backward with respect to the front support (51) behind the front support, and a load detector (47) which is attached to the rear support (53) before the rotation drive portion (45) and detects a load which is applied to the injection member (43).

    摘要翻译: 本发明提供了一种能够缩短纵向尺寸的注射单元。 一种注射成型机,其特征在于,具备:向内部供应成型材料的缸体(41);安装有缸体(41)的后端部的前支承体(51);注射部件(43) (41)内旋转自如且能够进退移动;旋转驱动部(45),其使所述喷射部件(43)旋转;后支承部(53),其支承所述旋转驱动部(45)和所述喷射部件 ),并且相对于前支撑件后方的前支撑件(51)向前和向后移动;以及负载检测器(47),其在旋转驱动部分(45)之前附接到后支撑件(53)并检测负载 被施加到注射构件(43)。