SYSTEMS AND METHODS FOR CONTROLLING INJECTION MOLDING USING PREDICTED CAVITY PRESSURE

    公开(公告)号:US20190337209A1

    公开(公告)日:2019-11-07

    申请号:US16401777

    申请日:2019-05-02

    Applicant: IMFLUX INC.

    Abstract: In order to improve the consistency of molded products as viscosity shifts throughout a run, a controller of an injection molding machine executes a calibration cycle in accordance with a mold cycle. The controller analyzes a plurality of sensed melt pressure values during the calibration cycle to determine one or more calibration metrics. The controller then uses the calibration metrics when executing each mold cycle of the run. More particularly, during each mold cycle of the run, the controller detects a plurality of sensed melt pressures prior to and during a fill phase of the mold cycle and compares the plurality of sensed melt pressures to the one or more calibration metrics to predict cavity pressure for a pack and hold phase of the mold cycle. The controller then adjusts a set point pressure for the pack and hold phase based on the predicted cavity pressure.

    Porous insert for nozzle of an injection molding system

    公开(公告)号:US10226885B2

    公开(公告)日:2019-03-12

    申请号:US15448195

    申请日:2017-03-02

    Applicant: IMFLUX INC.

    Abstract: A nozzle assembly for an injection molding system has a nozzle adapter with one or more vent holes therein. A porous metal insert is provided in fluid communication with at least one of the vent holes. The porous metal insert is also in fluid communication with a flow channel through the nozzle assembly. As molten polymeric material advances through the flow channel from a barrel to a mold assembly, gases entrained in the molten polymeric material are vented through the porous metal insert and escape through the one or more vent holes. Pressurized air may be introduced through the vent holes, such as by one or more blow-back modules, to unclog pores of the one or more porous metal inserts between shots of the injection molding system.

    METHOD AND APPARATUS FOR MOLDING AN OBJECT ACCORDING TO A COMPUTATIONAL MODEL

    公开(公告)号:US20190005164A1

    公开(公告)日:2019-01-03

    申请号:US15929028

    申请日:2018-06-29

    Applicant: IMFLUX INC.

    Abstract: A method of molding includes providing a physical mold having a plurality of physical sensors at sensor locations and providing pressure, volume, and temperature curves for a desired flow rate profile of an injection material at the sensor locations. The method also includes injecting the injection material into the physical mold at a physical flow rate corresponding to the desired flow rate profile and monitoring pressure, volume, and temperature of the injection material by the physical sensors. The method further includes controlling the physical flow rate when the monitored pressure, volume, or temperature of the injection material deviates from the pressure, volume, and temperature curves.

    Injection Molding of Crosslinking Polymers Using Strain Data

    公开(公告)号:US20180370108A1

    公开(公告)日:2018-12-27

    申请号:US15992855

    申请日:2018-05-30

    Applicant: IMFLUX INC.

    Abstract: Non-time dependent calculated variables based on measured strain are used to effectively determine an optimal hold profile for an expanding crosslinking polymer part in a mold cavity. A system and/or approach may first inject molten expanding crosslinking polymer into a mold cavity, then measure strain at the mold cavity or at another location within the injection molding system, and then calculate at least one non-time dependent variable during an injection molding cycle. Next, the system and/or method commences a hold profile for the part, and upon completing the hold profile, the part is ejected from the mold cavity, whereupon a cure profile is commenced.

    External sensor kit for injection molding apparatus and methods of use

    公开(公告)号:US11613059B2

    公开(公告)日:2023-03-28

    申请号:US17125148

    申请日:2020-12-17

    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.

    Systems and methods for controlling injection molding using predicted cavity pressure

    公开(公告)号:US11358317B2

    公开(公告)日:2022-06-14

    申请号:US16401777

    申请日:2019-05-02

    Applicant: IMFLUX INC.

    Abstract: In order to improve the consistency of molded products as viscosity shifts throughout a run, a controller of an injection molding machine executes a calibration cycle in accordance with a mold cycle. The controller analyzes a plurality of sensed melt pressure values during the calibration cycle to determine one or more calibration metrics. The controller then uses the calibration metrics when executing each mold cycle of the run. More particularly, during each mold cycle of the run, the controller detects a plurality of sensed melt pressures prior to and during a fill phase of the mold cycle and compares the plurality of sensed melt pressures to the one or more calibration metrics to predict cavity pressure for a pack and hold phase of the mold cycle. The controller then adjusts a set point pressure for the pack and hold phase based on the predicted cavity pressure.

    REAL TIME MATERIAL AND VELOCITY CONTROL IN A MOLDING SYSTEM

    公开(公告)号:US20210260805A1

    公开(公告)日:2021-08-26

    申请号:US17314544

    申请日:2021-05-07

    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.

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