METHOD FOR EVENLY DISTRIBUTING PLASTIC MELT IN A HOT RUNNER SYSTEM USING STRAIN GAUGES

    公开(公告)号:US20200108538A1

    公开(公告)日:2020-04-09

    申请号:US16708628

    申请日:2019-12-10

    Applicant: IMFLUX INC.

    Abstract: A hot runner injection molding apparatus, and method of use, is disclosed in which strain gauges are provided in the temperature zones of the hot runner injection molding apparatus and a hot runner controller creates a target strain profile, detects deviations from the target strain profile in any temperature zone based on the strain readings provided by the strain gauges in each temperature zone, and instructs correction of deviations from the target strain profile in any deviating temperature zone by adjusting the heat produced by a heater or heaters in the deviating temperature zone. The target strain profile may be based on a median or average of strain readings provided over time by the strain gauges in each temperature zone. A hollow installation tube for placing the strain gauges in the hot runner injection molding apparatus is also disclosed.

    EXTERNAL SENSOR KIT FOR INJECTION MOLDING APPARATUS AND METHODS OF USE

    公开(公告)号:US20190337207A1

    公开(公告)日:2019-11-07

    申请号:US16513121

    申请日:2019-07-16

    Applicant: IMFLUX INC.

    Abstract: Embodiments within the scope of the present disclosure are directed to external sensor kits that may be included in new injection molds or retrofitted into existing injection molds in order to approximate conditions within a mold, such as pressure or the location of a melt flow front. Such kits are designed to amplify meaningful measurements obtained by the external sensor kit so that noise measurements do not prevent the approximation of conditions within a mold. In some embodiments within the scope of the present disclosure, an external sensor kit includes a strain gauge sensor, a coupon, a support bracket, and a hammer. The strain gauge sensor is placed on a surface of the coupon and measures the strain in the coupon.

    Method of injection molding using one or more strain gauges as a virtual sensor

    公开(公告)号:US10449707B2

    公开(公告)日:2019-10-22

    申请号:US15216754

    申请日:2016-07-22

    Applicant: iMFLUX Inc.

    Abstract: A injection molding method involves measuring, using at least one strain gauge sensor, a change in strain in a mold side of a mold cavity, approximating a pressure within the mold cavity based on the change in strain, comparing the approximated pressure to a pre-set trigger point, and if the approximated pressure equals or exceeds the pre-set trigger point, activating a virtual cavity sensor having an optimal pre-defined pressure-time curve, wherein upon activation, the virtual cavity sensor tracks approximated pressures calculated from the change in strain measurements measured by the at least one strain gauge sensor over time and compares the results of the approximated pressure tracking to the optimal pre-defined pressure-time curve.

    Real Time Material and Velocity Control in a Molding System

    公开(公告)号:US20190105826A1

    公开(公告)日:2019-04-11

    申请号:US16123542

    申请日:2018-09-06

    Applicant: IMFLUX INC.

    Abstract: A system includes a cavity, an injection nozzle configured to inject material into the cavity, and a plurality of sensors at sensor locations. Each of the plurality of sensors is configured to measure parameters at one of the sensor locations. The system lacks a strain gauge. The system further includes a controller configured to control a flow rate of the injection of material into the cavity. The controller is configured to receive the measured parameters and compare the received information to predetermined curves. The controller is configured to control the flow rate when the measured parameters deviate from the predetermined curves.

    Upstream nozzle sensor for injection molding apparatus and methods of use

    公开(公告)号:US10107697B2

    公开(公告)日:2018-10-23

    申请号:US15615996

    申请日:2017-06-07

    Applicant: IMFLUX INC.

    Abstract: A strain gauge nozzle adapter that may be placed between a barrel end cap and a nozzle body of an injection molding system, the strain gauge nozzle adapter having a strain gauge pin that measures strain within the strain gauge nozzle adapter for use in approximating conditions within an injection molding system, such as pressure or the location of a melt flow front. The strain gauge nozzle adapter may include a plurality of strain gauge pins. An alternative material insert in the strain gauge nozzle adapter may surround a strain gauge pin to amplify meaningful measurements obtained by the strain gauge pin so that noise measurements do not compromise the accuracy of approximation of conditions within a mold.

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