A control device for an injection molding machine including a cylinder into which a resin is supplied, a nozzle disposed at a distal end of the cylinder, and a screw that moves forward and rearward inside the cylinder, the injection molding machine performing metering of the resin while the resin is being melted inside the cylinder, by causing the screw to be moved rearward to a metering position, so as to keep the resin pressure at a metering pressure, includes a calculation unit configured to calculate a suck back distance or a suck back time period that achieves drawing in of a target volume of the resin inside the nozzle toward the cylinder, and a suck back control unit configured to cause the screw to be sucked back, based on the suck back distance or the suck back time period, after the screw has reached the metering position.

A method or system for industrial process optimization, including sensing data about an industrial process cycle that operates according to a set of process setpoints; determining a target performance for the process cycle based on the sensed data; selecting process set-points from a hypothesis space for a future industrial process cycle based on the target performance, and updating the hypothesis space.

The invention describes a method of determining and visualizing process parameter values of an injection moulding process, which method comprises the steps of determining geometric data of the injection mould (1F) and/or of a form part (1, 1′, 1″) to be manufactured in the injection mould (1F), carrying out an injection moulding process using the injection mould (1F) and recording measurement values as a function of the injection time and/or an actuator position (s), determining, as process parameter values on the basis of the measurement values and geometry data of the injection mould (1F), a flow front position inside the injection mould (1F) or the form part (1′, 1″) as a function of the injection time and/or an actuator position. The invention further describes a corresponding process parameter value determining apparatus (20) and an injection mould arrangement (10) with such a process parameter value determining arrangement (20).

A control device for an injection molding machine includes a pressure acquisition unit that acquires a resin pressure, a measurement unit that measures an elapsed time period or a rotation amount of the screw from when the screw has reached a predetermined metering position, a reverse rotation control unit that causes the screw to be rotated in reverse from when the screw has reached the predetermined metering position, and a condition determination unit that determines the reverse rotation time period based on a required time period from when the screw has reached the predetermined metering position until when the resin pressure falls to a target pressure, or determines the reverse rotation amount based on a required reverse rotation amount from when the screw has reached the predetermined metering position until when the resin pressure falls to the target pressure.

A control device for an injection molding machine is equipped with a pressure acquisition unit configured to acquire a resin pressure, a pressure reduction control unit configured to, after the screw has reached a predetermined metering position, reduce the resin pressure to a target pressure by performing at least one of reverse rotation and sucking back of the screw, and a standby pressure control unit configured to, after the resin pressure has reached the target pressure, keep the resin pressure within a predetermined range by causing the screw to be rotated in a state in which a position of the screw in an axial direction of the cylinder is maintained.

A reverse rotation condition estimating apparatus includes: a learning model storage unit for storing a learning model for estimating reverse rotation conditions; an acquisition unit for acquiring a predetermined time series data set supplied from an injection molding machine at least during a pressure reducing step; and an estimation unit for estimating the reverse rotation conditions using the predetermined time series data set acquired by the acquisition unit and the learning model stored in the learning model storage unit.

An injection molding system comprising: a first selected valve, one or more downstream valves, delivering a fluid to a mold cavity, at least one fluid property sensor, each valve associated with a position sensor that detects opening of a gate at an actual open gate time to the controller, the controller automatically adjusting time of instruction to open the gates on a subsequent injection cycle by an adjustment time equal to any delay in time between a predetermined open gate target time and an actual open gate time, wherein the system forms a first one or more parts or objects, the user inspecting or measuring the first one or more parts or objects and manually adjusts the predetermined open gate target time.

An injection molding system comprising: a first selected valve, one or more downstream valves, delivering a fluid to a mold cavity, at least one fluid property sensor that detects a flow front of fluid material flowing downstream through the mold cavity at a trigger location within the cavity disposed between the first gate and at least one selected downstream gate, a controller instructing an actuator associated with the downstream gates to open the gates at a predetermined open gate target time on a first injection cycle, each valve associated with a position sensor that detects opening of a gate at an actual open gate time to the controller, the controller automatically adjusting time of instruction to open the gates on a subsequent injection cycle by an adjustment time equal to any delay in time between the predetermined open gate target time and the actual open gate time.

The present disclosure provides a molding system for preparing injection-molded articles. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin; a processing module configured to generate an anisotropic viscosity distribution of the molding resin in the mold cavity based on a molding condition for the molding machine, wherein the anisotropic viscosity distribution of the molding resin is generated based in part on an elastic effect of the molding resin; and a controller operably communicating with the processing module and configured to control the molding machine with the molding condition using the generated anisotropic viscosity distribution of the molding resin to perform an actual molding process for preparing the injection-molded article.

A control device for an injection molding machine including a cylinder into which a resin is supplied and a screw that moves forward and rearward and rotates inside the cylinder, includes a metering control unit that performs metering of the resin inside the cylinder by controlling forward rotation and rearward movement of the screw until the screw has been moved rearward to a predetermined metering position, based on predetermined metering conditions, a rearward movement speed acquisition unit acquiring a rearward movement speed of the screw, a speed determination unit that determines a suck back speed for causing a resin pressure to reach a target pressure, based on the rearward movement speed acquired during metering by the rearward movement speed acquisition unit, and a suck back control unit causing the screw to move further rearward based on the suck back speed, after the screw has reached the predetermined metering position.