INJECTION MOLDING APPARATUS WITH A THERMAL BRIDGE

    公开(公告)号:EP3804950A1

    公开(公告)日:2021-04-14

    申请号:EP20200011.3

    申请日:2020-10-05

    申请人: Milacron LLC

    IPC分类号: B29C45/28 B29C45/27

    摘要: An injection molding apparatus and hot runner system are disclosed. The injection molding apparatus includes a plurality of mold plates in which the hot runner system is received. A manifold receives molding material and has a manifold channel that extends between an inlet and an outlet. A nozzle delivers moldable material to a mold cavity. The nozzle has a nozzle channel in fluid communication between the manifold channel and the mold cavity. A valve pin seal is located at the upstream end of the nozzle, and a valve pin that is connected to an actuator extends through the manifold and nozzle is slidably received in the valve pin seal. The hot runner system further includes a thermal bridge that is in conductive thermal communication with the valve pin seal and a cooled one of the plurality of mold plates.

    CO-INJECTION MOLDED MULTI-LAYER ARTICLE WITH INJECTION-FORMED APERTURE BETWEEN GATE AREA AND PERIPHERAL EDGE

    公开(公告)号:EP3453512A1

    公开(公告)日:2019-03-13

    申请号:EP18202500.7

    申请日:2014-05-30

    申请人: Milacron LLC

    发明人: Swenson, Paul M.

    IPC分类号: B29C45/16 B29C45/00

    摘要: Methods and systems for co-injection molding multilayer articles having one or more molded apertures disposed between a gate region and a peripheral region of the article are disclosed. The articles include an interior layer disposed between an inner layer and an outer layer. An article has interior layer coverage over at least 98% of a perimeter of a cross-section of the article downstream of the one or more molded apertures. A method includes modifying fluid flowing past an aperture-forming region of a mold cavity to compensate for the drag of the aperture-forming region on the velocity of the fluid flowing proximal to the aperture-forming region.

    INJECTION MOLDING NOZZLE FOR MANUFACTURING INJECTION MOLDED COMPONENTS FORM PLASTIC
    8.
    发明公开
    INJECTION MOLDING NOZZLE FOR MANUFACTURING INJECTION MOLDED COMPONENTS FORM PLASTIC 审中-公开
    注塑成型喷嘴用于注塑成型塑料成型

    公开(公告)号:EP3191286A1

    公开(公告)日:2017-07-19

    申请号:EP15766049.9

    申请日:2015-09-10

    IPC分类号: B29C45/27 B29C45/30 B29C45/38

    摘要: The invention relates to a method and an injection-moulding nozzle for producing injection-moulded parts from plastic with an injection mould, wherein the plastic melt in the form of at least one ribbon-like strand of melt is injected through a nozzle slit (2) into a cavity (15) of the injection mould before the injection-moulded part is demoulded once the plastic melt has solidified. In order to provide advantageous injection-moulding and demoulding conditions, it is proposed that the plastic melt is exposed to heat in the region of the sprue during solidifying in the cavity (15) and that the sprue is torn off during demoulding of the injection-moulded part along the nozzle slit (2) in the region of the sprue as a result of the temperature gradient between the solidified injection-moulded part and the plastic melt.

    摘要翻译: 本发明涉及一种注塑成型喷嘴,用于将熔化的塑料通过槽式浇口(2,2,3)引入到注塑成型工具的模腔(15)中。 注射成型喷嘴包括具有细长边缘(3B)并被容纳在壳体(1,1)中的开口(1A,1)中的喷嘴芯(2,3,3)。 喷嘴芯(2,3,3)的一部分与壳体(1,1)间隔开以限定喷嘴流动通道,所述喷嘴流动通道在熔融塑料的源和槽式浇口(2)之间流体连通。 ,2,3),并且在所述壳体(1,1)与所述喷嘴芯(2,3,3)之间的所述喷嘴流动通道的至少下游部分围绕所述喷嘴芯(2,3,3) 所有面。