- Patent Title: Method for controlling valve gates using one or more strain gauges
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Application No.: US15816457Application Date: 2017-11-17
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Publication No.: US10894349B2Publication Date: 2021-01-19
- Inventor: William Francis Lawless, III , Chow-Chi Huang , Gene Michael Altonen , Brandon Michael Birchmeier
- 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: B29C45/76
- IPC: B29C45/76 ; B29C45/77 ; B29C45/00 ; B29C45/28

Abstract:
A method of monitoring and controlling a sequential valve gate molding apparatus in an injection molding or other molding process is disclosed. The method includes creating a target strain profile, receiving a deviation limit, receiving a change in strain relating to a first valve gate from a first strain gauge, identifying whether a deviation exists from a first portion of the target strain profile based on the output from the first strain gauge, determining whether any existing deviation exceeds the deviation limit, and adjusting the position of a first valve gate pin in the first valve gate if it does. The method may further include control of subsequent valve gates. Multiple strain gauges may be used to control a single valve gate, and/or each strain gauge may control more than one valve gate.
Public/Granted literature
- US20180141252A1 Method for Controlling Valve Gates Using One or More Strain Gauges Public/Granted day:2018-05-24
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