Abstract: An apparatus (100), comprising: a pressure-control assembly (104) having: a first interface unit (105) being configured to interface, in use, with a fluid-bottle assembly (102); and a second interface unit (107) being configured to interface, in use, with a hydraulic-accumulator assembly (200), the hydraulic-accumulator assembly (200) being associated with a molding system (202), the hydraulic-accumulator assembly (200) being configured to accumulate, under an hydraulic pressure, an hydraulic fluid, the hydraulic fluid being associated with an hydraulic circuit (204); the pressure-control assembly (104) being configured to: communicate, in use, a fluid pressure between the fluid-bottle assembly (102) and with the hydraulic-accumulator assembly (200); and controllably adjust, in use, the fluid pressure between the fluid-bottle assembly (102) and the hydraulic-accumulator assembly (200), the fluid pressure that is adjusted by the pressure-control assembly (104) varies, in use, the hydraulic pressure associated

Abstract: An injection molding system (20) is provided including an extruder unit (22) having an injection actuator (38) for injecting a melt into a mold assembly (40); and a clamping unit (24), the clamping unit (24) configured to retain the mold assembly (40) during injection. A power pack (46) is provided, including a fixed-target accumulator assembly (62) operable to discharge hydraulic fluid at a fixed hydraulic pressure to the clamping unit (24) and a first pump being connected with the clamping unit (24), the first pump operable for charging the fixed-target accumulator assembly (62) to the fixed hydraulic pressure. The power pack (46) also includes a variable-target accumulator assembly (66) operable to discharge hydraulic fluid at a variable hydraulic pressure to the injection actuator (38) during the molding cycle; and a second pump connected to the variable-target accumulator assembly (66), the second pump operable for charging the variable-target accumulator assembly (66) to the variable hydraulic pressure.

Abstract: There is disclosed a method for controlling a fill speed of an injection unit, the method executable in a computing apparatus configured to control a plunger actuator of the injection unit. The method comprises receiving an indication of a mold-cavity-filling parameter, the mold-cavity-filling parameter being indicative of a number of molding cavities of a multi-cavity mold having been filled; responsive to the mold-cavity-filling parameter satisfying a pre-determined threshold, releasing a control signal to the plunger actuator to control speed associated with a plunger of the injection unit from a first filling speed to a second filling speed.

Abstract: There is disclosed a method for controlling a fill speed of an injection unit, the method executable in a computing apparatus configured to control a plunger actuator of the injection unit. The method comprises receiving an indication of a mold-cavity-filling parameter, the mold-cavity-filling parameter being indicative of a number of molding cavities of a multi-cavity mold having been filled; responsive to the mold-cavity-filling parameter satisfying a pre-determined threshold, releasing a control signal to the plunger actuator to control speed associated with a plunger of the injection unit from a first filling speed to a second filling speed.