MELT DISPENSER FOR PLASTIC MOLDING

    公开(公告)号:US20210331361A1

    公开(公告)日:2021-10-28

    申请号:US17269617

    申请日:2019-08-29

    Inventor: Alex TENG

    Abstract: A melt dispenser for plastic molding comprises a barrel unit removably mountable to a drive unit. A feed screw is received within a barrel of the barrel unit and is rotated by the drive unit to dispense molten molding material through an outlet of the barrel. A coupling mechanism can be engaged to hold the barrel unit against the drive unit and on to connect the screw to the drive. The coupling mechanism is operable by an actuator.

    INJECTION UNIT WITH TELESCOPIC MELT COUPLING

    公开(公告)号:US20230286196A1

    公开(公告)日:2023-09-14

    申请号:US18245375

    申请日:2021-08-27

    CPC classification number: B29C45/1773 B29C45/20 B29C2045/202

    Abstract: In one aspect, an injection unit for an injection molding machine having a hot runner with a sprue comprises a heated melt pipe configured to convey a continuous stream of melt, a shooting pot assembly, and a telescopic melt coupling. The shooting pot assembly is configured to convert the continuous stream of melt from the heated melt pipe into batches for cyclical injection and is translatable between a sprue-engagement position and a sprue-disengagement position. The telescopic melt coupling is configured to convey melt from the heated melt pipe to the shooting pot assembly and has a variable length. The variable length telescopic melt coupling permits translation of the shooting pot assembly, relative to the heated melt pipe, between the sprue-engagement position and the sprue-disengagement position while maintaining a fluid melt interconnection between the heated melt pipe and the shooting pot assembly.

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