CPC B29C 45/82 (2013.01) [B29C 45/7653 (2013.01); B29C 45/77 (2013.01); B29C 2945/76006 (2013.01); B29C 2945/76307 (2013.01); B29C 2945/76498 (2013.01); B29C 2945/76785 (2013.01)] | 23 Claims |
1. A method for controlling an injection molding system to optimize an efficiency of the injection molding system, wherein the injection molding system includes a pump assembly, a system pressure and at least one component pressure, the method comprising:
(a) controlling the pump assembly to allow for operation of the injection molding system at a predetermined first system pressure set by a controller for a predetermined number of baseline cycles;
(b) measuring a baseline performance of the injection molding system with one or more sensors during the baseline cycles;
(c) comparing an accumulator pressure with an accumulator pressure limit;
(d) based on the baseline performance and the accumulator pressure, setting a second system pressure value as a target pressure value;
(e) setting a variable pressure setpoint equal to a third system pressure value;
(f) comparing the variable pressure setpoint to the target pressure value; and
(g) controlling the pump assembly to change the variable pressure setpoint to a value approaching the target pressure value, wherein an amount of change is determined based on a difference between the variable pressure setpoint and the target pressure value.
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