Thermal management of extruder of molding system

Details Thermal management of extruder of molding system Thermal management of extruder of molding system

B - Operations, Transporting

22

D

B22D 17/32 (2006.01) B22D 17/20 (2006.01)

Patent

CA 2660482

Controller of molding system having: extruder, extruder heaters, hot runner having: zone, and thermal sensor placed proximate of zone, machine nozzle connecting extruder to hot runner, controller operatively coupled to thermal sensor, controller comprising: controller-usable medium embodying instructions executable by controller couplable to molding system, instructions configured to direct controller to: (i) control thermal condition of extruder by controlling extruder heaters; (ii) determine whether change in thermal condition of extruder is required based on thermal condition of zone of hot runner; (iii) adjust threshold of extruder heaters based on a non-extruder sensor that is positioned away from extruder but positioned proximate to melt passageway; and (iv) use the non-extruder sensor in closed loop feedback control schema to adjust heat of extruder.

Procédé de contrôle de la température d'une extrudeuse (120) en fonction de la température d'un passage de coulée (126) en aval par rapport à la vis d'extrudeuse.

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