Invention Grant
- Patent Title: Systems and methods for controlling injection molding using predicted cavity pressure
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Application No.: US16401777Application Date: 2019-05-02
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Publication No.: US11358317B2Publication Date: 2022-06-14
- Inventor: Bryler Collins , Gene Michael Altonen , Chow-Chi Huang , Brandon Michael Birchmeier , Brian Matthew Burns
- Applicant: IMFLUX INC.
- Applicant Address: US OH Hamilton
- Assignee: IMFLUX INC.
- Current Assignee: IMFLUX INC.
- Current Assignee Address: US OH Hamilton
- Agency: Marshall, Gerstein & Borun LLP
- Main IPC: B29C45/77
- IPC: B29C45/77

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.
Public/Granted literature
- US20190337209A1 SYSTEMS AND METHODS FOR CONTROLLING INJECTION MOLDING USING PREDICTED CAVITY PRESSURE Public/Granted day:2019-11-07
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