Method and apparatus for measuring the temperature of molten material in a mold cavity
AssigneeMold-Masters Limited
InventorGeorge Olaru
Life of this patent
Estimating the term…
Abstract
An injection molding apparatus comprises a manifold having a manifold channel for receiving a melt stream of molten material under pressure and delivering the melt stream to a nozzle channel of a nozzle. A mold cavity receives the melt stream from the nozzle and the nozzle channel communicates with the mold cavity through a mold gate. A thermocouple is coupled to the mold core of the mold cavity in order to measure the temperature of the molten material in the mold cavity.
Claims12
An injection molding apparatus comprising:
- a manifold having a manifold channel for receiving a melt stream of molten material under pressure and delivering the melt stream to a nozzle channel of a nozzle;
- a mold cavity for receiving the melt stream from said nozzle, said nozzle channel communicating with said mold cavity through a mold gate;
- and
- a thermocouple coupled to said mold core of said mold cavity for measuring a temperature of the molten material in said mold cavity.
A method of molding a part comprising:
- delivering a melt stream of molten material from a manifold channel of a manifold under pressure, through a nozzle channel of a nozzle, through a mold gate to a mold cavity, the melt stream being heated by a nozzle heater coupled to said nozzle;
- measuring a temperature of the molten material in said mold cavity using a first thermocouple;
- and
- measuring the temperature of the molten material in said nozzle using a second thermocouple.
A method of molding a part comprising:
- delivering a melt stream of molten material from a manifold channel of a manifold under pressure, through a nozzle channel of a nozzle, through a mold gate to a mold cavity, the melt stream being heated by a nozzle heater coupled to said nozzle;
- measuring a temperature of the molten material in said mold cavity using a thermocouple;
- providing said temperature of said molten material in said mold cavity to a controller;
- comparing said temperature of said molten material in said mold cavity with a predetermined target temperature stored by said controller;
- and
- adjusting an output of said nozzle heater to align said temperature of the molten material entering said mold cavity with said predetermined target temperature.
An injection molding apparatus comprising:
- a manifold having a manifold channel for receiving a melt stream of molten material under pressure and delivering the melt stream to a nozzle channel of a nozzle, said nozzle having a heater for heating said melt stream;
- a mold cavity for receiving said melt stream from said nozzle, said nozzle channel communicating with said mold cavity through a mold gate;
- a thermocouple coupled to a mold core of said mold cavity for measuring the temperature of the molten material in said mold cavity;
- and
- a controller in communication with said thermocouple and said heater, said controller for receiving a temperature output from said thermocouple and comparing said temperature output to a predetermined target temperature in order to adjust a heater output of said heater.
Dependencies are inferred from the claim text.