A method for controlling an injection molding machine comprising a reciprocating plasticizing screw and a controller system adapted for measuring or calculating at least one first production parameter and for controlling/setting at least one second production parameter on the injection molding machine. The method comprises setting a preselected target value for the first production parameter, and inputting the target value into the controller system. The method comprises comparing the measured first production parameter of one production cycle with the preselected target value for the first production parameter. The method comprises calculating by the controller system a new value for the second production parameter as a function of the difference between the first production parameter and the preselected target value for the selected actual production parameter. The method comprises setting by the controller system said new value for the second production parameter for a subsequent production cycle.

An apparatus and method for eliminating mold lines when molding a part having ferromagnetic pigments is provided. A mold assembly having a mold with a cavity and valve gates is formed. Pucks are fitted at the gates to collect residual cold plastic. The calculation of a specific sequence and timing of the opening of the valve gates is determined based on a calculation of the total number of valve gates needed to fill a part while maintaining acceptable injection molding pressure. Once calculated, the gates are positioned around the mold cavity to balance flow length ratio. A primary gate is chosen for initial injection. The time for the material to flow from the first to the second gate is established. The second gate is opened after the flow front reaches the second gate. This pattern continues until all valve gates are opened.

A molded product take-out apparatus includes: a controller independent of a molding machine; a take-out robot for releases a molded product from a mold in the molding machine by a command from the controller; a temperature controller regulates the temperature of the mold; a material dryer dries material to be supplied to the molding machine; and a material conveyor supplies the dried material to the molding machine. The controller is network-connected to the take-out robot and the temperature controller and the material dryer and the material conveyor. The controller is configured to control a release operation of the take-out robot to differentiate a release place between when judging that a detection data to be within an allowable range and another case.

An injection molding machine management system includes an injection molding machine, a take-out robot, an inspection device, a memory, and a processor. The processor is configured to receive physical information of the injection molding machine and a mold, and an inspection result of a molded product. The received physical information includes an identification information of the mold and the injection molding machine, a shot number of injection molding with respect to the mold, an injection filling time with respect to the mold, an injection pressure, a mold clamping force, and a set temperature of each part of the injection molding machine. The received physical information and the inspection result are displayed on a display. Necessity of maintenance is notified to an operator based on a predetermined maintenance period of time, the received physical information, and/or the inspection result.

A virgin material plasticization time Tv, which is a time required for a screw to reach a predetermined plasticization end position Xe when only a virgin material Rv is plasticized, a crushed material plasticization time Ts, which is a time required for the screw to reach the predetermined plasticization end position Xe when only a crushed material Rs is plasticized, are measured and registered as basic time data Do. Actually measured time data Dp are obtained by measuring a crushed material mixed material plasticization time Tm when a molded product is produced by using the crushed material mixed material Rm, the crushed material mixed material plasticization time Tm being a time required for the screw to reach the plasticization end position Xe in a predetermined shot. The crushed material ratio Px in the crushed material mixed material Rm is obtained on the basis of the virgin material plasticization time Tv, the crushed material plasticization time Ts, and the crushed material mixed material plasticization time Tm. An output process is performed on the obtained crushed material ratio Px.

Provided by the present disclosure is an ultrasonic phased array-based in-situ imaging method for melt flow in injection molding. The ultrasonic phased array is used for the detection of an injection molding process for the first time, and an effective dynamic monitoring imaging method for a melt front position is developed. A melt flow process in a mold cavity is dynamically monitored by collecting an FMC (Full matrix capture) dataset online. A mapping relationship between an incident angle and a target pixel point is established to rapidly determine time delay of each point in a measurement target region, and a melt bottom image is acquired using TFM (Total focusing method) imaging conditions, from which the melt front can be localized. The provided method is high in measurement accuracy, short in imaging time, and capable of effectively improving imaging efficiency of online measurement.

Provided is a sensing device for quality management of molded products in which a haul sensor counting the number of times of mold-opening is fixedly installed on a controlling Printed Circuit Board (PCB) in a sensor module, a temperature sensor and an acceleration sensor for quality management of molded products are fixedly installed on a measuring PCB, and a Microcontroller Unit (MCU) and a memory equipped with a control algorithm are fixedly installed on the controlling PCB.

Performance of an injection molding machine is improved. The injection molding machine includes: a central controller centrally controlling an injection molding operation; a first injection apparatus performing an injecting operation of material, based on a first injection start signal output from the central controller; a second injection apparatus performing an injecting operation of material, based on a second injection start signal output from the central controller; and a mold clamping apparatus performing a mold clamping apparatus. The injection molding machine is configured to adjust a time difference between a first injection start timing of the material injected from the first injection apparatus and a second injection start timing of the material injected from the second injection apparatus.

Performance of an injection molding machine is improved. The injection molding machine includes: a central controller centrally controlling an injection molding operation; a first injection apparatus performing an injecting operation of material, based on a first injection start signal output from the central controller; a second injection apparatus performing an injecting operation of material, based on a second injection start signal output from the central controller; and a mold clamping apparatus performing a mold clamping apparatus. The injection molding machine is configured to adjust a time difference between a first injection start timing of the material injected from the first injection apparatus and a second injection start timing of the material injected from the second injection apparatus.

A controller for an injection molding machine includes processing circuitry. The processing circuitry is configured to store, in a storage, information on an action taken on the injection molding machine, user information indicating a user who has taken the action, and information on time for taking the action in association with each other, with respect to each of actions taken on the injection molding machine. The processing circuitry is further configured to refer to the storage to display, on a display, the number of actions taken by the user or time required for taking the actions by the user in a visually recognizable manner using a figure, with respect to each of users indicated in the user information.