APPARATUS AND METHODS FOR OPTIMIZING INJECTION MOLDING PARAMETERS, FORMULATIONS, AND MOLD STRUCTURE

    公开(公告)号:US20240246272A1

    公开(公告)日:2024-07-25

    申请号:US18417762

    申请日:2024-01-19

    Applicant: Moxietec, LLC

    CPC classification number: B29C45/34 B29C45/77 B29C45/78

    Abstract: Disclosed herein are methods and systems for determining mold designs, polymer formulations, and processing parameters for forming a thermoplastic foam with desired cellular structure and mechanical and physical properties. In one example, the system includes a plaque mold and a plurality of interchangeable mold cavities including one pair of mold cavities used to form a solid polymer sample and two or more pairs of mold cavities for forming thermoplastic foam samples. The mold cavities include a plurality of sensors to determine pressures and temperature at various locations within the mold cavities. Samples are compared and determinations are made based on the comparison and evaluation of data regarding mold designs, formulations, and/or processing parameters. Optionally, the methods and system disclosed herein can use a venting system and collection system to collect any outcoming gases to determine the solubility of specific polymer-gas combinations to further determine mold designs, formulations, and/or processing parameters.

    Shut-off nozzle with needle valve, injection device and injection molding machine

    公开(公告)号:US11911941B2

    公开(公告)日:2024-02-27

    申请号:US17703009

    申请日:2022-03-24

    CPC classification number: B29C45/281 B29C45/176 B29C45/23 B29C45/77

    Abstract: A shut-off nozzle includes: an injection nozzle in which a flow path is formed; a needle valve provided in the flow path coaxially with the injection nozzle, the needle valve being movable forward and backward in an axial direction; and a guide ring provided in the flow path. The needle valve includes a columnar shaft portion, and the guide ring is configured to guide the forward and backward movement of the needle valve at the shaft portion. An injection device includes: a heating cylinder; a screw provided in the heating cylinder; and the shut-off nozzle provided in the heating cylinder. An injection molding machine includes: a mold clamping device configured to clamp a mold; and the injection device configured to inject a resin.

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