Temperature control unit, system, and method for molding equipment
AssigneeSterling Products, Inc.
InventorsTimothy R Hardie, John N Olson
Life of this patent
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Abstract
A temperature control system and method for regulating a liquid temperature in a recirculation system of a molding system includes determining an operating pressure of the liquid in the recirculation system, determining an operating temperature of the liquid in the recirculation system, receiving the operating pressure and the operating temperature, comparing the received operating temperature to a threshold temperature as a function of the operating pressure, and adjusting an output of a heat exchanger in the recirculation system when the operating temperature is beyond the threshold temperature.
Claims17
A temperature control system for molding equipment, the temperature control system comprising:
- a heat exchanger configured to change the temperature of a liquid in a recirculation system;
- a pressure sensor configured to determine an operating pressure of the liquid in the recirculation system and to output a pressure signal indicating the operating pressure of the liquid;
- a temperature sensor configured to determine an operating temperature of the liquid in the recirculation system and to output a temperature signal indicating the operating temperature of the liquid;
- and
- a controller configured to:
- receive the pressure signal and the temperature signal;
- determine a maximum threshold temperature from a plurality of maximum threshold temperatures based on the received operating pressure, wherein each maximum threshold temperature of the plurality of maximum threshold temperatures corresponds to at least one pressure within a range of pressures and is a maximum allowable temperature for the range of pressures;
- compare the operating temperature to the maximum threshold temperature as a function of the operating pressure;
- and
- send a control signal to the heat exchanger to change a temperature of the liquid in the recirculation system when the operating temperature of the liquid is beyond the maximum threshold temperature.
A method for regulating a liquid temperature in a recirculation system of a molding system, the method comprising:
- determining, by a pressure sensor, an operating pressure of the liquid in the recirculation system;
- determining, by a temperature sensor, an operating temperature of the liquid in the recirculation system;
- receiving, by a controller, the operating pressure and the operating temperature;
- determining, by the controller, a maximum threshold temperature from a plurality of maximum threshold temperatures based on the received operating pressure, wherein each maximum threshold temperature of the plurality of maximum threshold temperatures corresponds to at least one pressure within a range of pressures and is a maximum allowable temperature for the range of pressures;
- comparing, by the controller, the received operating temperature to the maximum threshold temperature as a function of the operating pressure;
- and
- adjusting, by the controller, an output of a heat exchanger in the recirculation system when the operating temperature is beyond the maximum threshold temperature.
A non-transitory computer-readable medium including instructions that, when executed by a processor, are operable to:
- receive an operating pressure and an operating temperature of a liquid in a recirculation system of a molding system;
- determine a maximum threshold temperature from a plurality of maximum threshold temperatures based on the received operating pressure, wherein each maximum threshold temperature of the plurality of maximum threshold temperatures corresponds to at least one pressure within a range of pressures and is a maximum allowable temperature for the range of pressures;
- compare the received operating temperature to the maximum threshold temperature as function of the operating pressure;
- and
- adjust an output of a heat exchanger in the recirculation system when the operating temperature is beyond the maximum threshold temperature.
Dependencies are inferred from the claim text.