Abstract: Provided are an injection molding machine control device and a program that can improve the accuracy of a calculated heat dissipation quantity of a heater.

Abstract: A controller for an injection molding machine having a heater and serving to estimate the surface temperature of the heater at a predetermined time, the controller comprising: an operation information acquiring unit for acquiring, as operation information, heater output power and heater setting temperature of the heater during a predetermined period immediately before the predetermined time; a surface temperature acquiring unit for acquiring the surface temperature of the heater during the predetermined period; an actual performance information acquiring unit for acquiring, as actual performance information, the actual performance on the transition of the ratio between the surface temperature of the heater and the setting temperature relative to the transition of the heater output power of the heater; and an estimating unit for estimating the surface temperature of the heater at the predetermined time on the basis of the operation information, the actual performance information, and the acquired surface tempe

Abstract: A controller includes an operation information acquisition unit that acquires operation information, a characteristic information acquisition unit that acquires characteristic information of heat dissipation characteristics of a heater, a surface temperature acquisition unit that acquires the surface temperature of the heater, and a results information acquisition unit that acquires results of a transition in the ratio of the surface temperature and a set temperature with respect to a transition in the heater output as results information.

Abstract: An injection molding machine includes: a plunger provided inside a barrel and capable of moving forward and backward in an axial direction thereof and rotating about an axis thereof; a feed hole for feeding a molding material in liquid form into a front of the plunger; a packing provided on a backward side of the feed hole to prevent the molding material fed through the feed hole from flowing backward along the plunger; and a controller for controlling a retracting movement of the plunger based on pressure of the molding material fed from the feed hole to thereby perform metering. In this configuration, at least part of the feed hole is covered by a side surface of the plunger at least from start to end of the retracting movement.

Abstract: An injection molding machine includes: a plunger provided inside a barrel and capable of moving forward and backward in an axial direction thereof and rotating about an axis thereof; a feed hole for feeding a molding material in liquid form into a front of the plunger; a packing provided on a backward side of the feed hole to prevent the molding material fed through the feed hole from flowing backward along the plunger; and a controller for controlling a retracting movement of the plunger based on pressure of the molding material fed from the feed hole to thereby perform metering. In this configuration, at least part of the feed hole is covered by a side surface of the plunger at least from start to end of the retracting movement.