IMPROVEMENTS IN OR RELATING TO INJECTION SYSTEMS
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United States of America
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Issued Date -
Mar 24, 2022
app pub date -
Jan 29, 2019
filing date -
Jan 29, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A resin detection system for closing an automated valve to prevent resin entering a vacuum line portion of an outlet line is described. The resin detection system comprises a support (300) to a pneumatically-actuated device (320), a capacitive sensor (380) and a valve (410) are mounted. The sensor is configured to provide at least one signal indicative of the presence of resin in the outlet line which is used to close the valve automatically once the presence of resin is sensed by the capacitive sensor. The resin detection system forms part of an injection moulding apparatus and receives signals from a processor thereof to ensure that, if too much resin is injected, the valve is automatically closed even in the event that the sensor does not detect the presence of resin in the outlet line.
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