Hot Runner Having Temperature Sensor for Controlling Nozzle Heater
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United States of America Patent
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Issued Date -
Nov 27, 2008
app pub date -
May 23, 2008
filing date -
May 25, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A hot runner includes a manifold having a manifold channel and a plurality of nozzle coupled to the manifold. The manifold channel includes a plurality of branches and a manifold heater. Each of the plurality of nozzles includes a nozzle channel and a nozzle heater, the nozzle channel for receiving molding material from a branch of the manifold channel and delivering molding material to a mold cavity. At least one temperature sensor is located near the interface of the manifold and at least one of the nozzles. The temperature sensor is connected to a controller and the controller is connected to at least one of the nozzle heaters. The controller controls power to the nozzle heater according to a temperature measured by the temperature sensor.
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