A molding machine management system includes a display section configured to display, along a common time axis, identification indicators for identifying a component B, which is a first molded article, and a component C, which is a second molded article, produced after the component B, a production result for the component B including a molding result period and an arrangement result period for the component B, and a production plan for the component C including a molding planned period and an arrangement planned period for the component C and display the production result for the component B and the production plan for the component C in parallel on the common time axis.

A controller for an injection molding machine includes a hardware processor. The hardware processor is configured to output a screen. The screen includes an entry field for entering a completion time at which the increasing of temperature of a temperature-controlled member is completed. The temperature-controlled member is subjected to temperature control in the injection molding machine. The hardware processor is further configured to receive an entry of the completion time in the entry field.

A molding machine management system includes a display section configured to display, along a common time axis, identification indicators for identifying a component B, which is a first molded article, and a component C, which is a second molded article, produced after the component B, a production result for the component B including a molding result period and an arrangement result period for the component B, and a production plan for the component C including a molding planned period and an arrangement planned period for the component C and display the production result for the component B and the production plan for the component C in parallel on the common time axis.

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.