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 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.

In a polypropylene-based foamed molded body of the present invention, a density which is measured on the basis of ISO1183 is greater than or equal to 0.15 g/cm.sup.3 and less than or equal to 0.54 g/cm.sup.3, thermal resistance (R) at 30° C. in a thickness direction which is measured on the basis of ASTM E1530 is greater than or equal to 0.020 m.sup.2.Math.K/W and less than or equal to 0.125 m.sup.2.Math.K/W, thermal capacity per unit area (Q) at 30° C. is greater than or equal to 1.0 kJ/m.sup.2.Math.K and less than or equal to 2.5 kJ/m.sup.2.Math.K, and Expression 1 described below is satisfied.

Q>1/(4×R.sup.1/2)  (Expression 1)

In a polypropylene-based foamed molded body of the present invention, a density which is measured on the basis of ISO1183 is greater than or equal to 0.15 g/cm.sup.3 and less than or equal to 0.54 g/cm.sup.3, thermal resistance (R) at 30° C. in a thickness direction which is measured on the basis of ASTM E1530 is greater than or equal to 0.020 m.sup.2.Math.K/W and less than or equal to 0.125 m.sup.2.Math.K/W, thermal capacity per unit area (Q) at 30° C. is greater than or equal to 1.0 kJ/m.sup.2.Math.K and less than or equal to 2.5 kJ/m.sup.2.Math.K, and Expression 1 described below is satisfied.

Q>1/(4×R.sup.1/2)  (Expression 1)

The present invention offers a technique for providing assistance in setting at least one of the temperature of a nozzle and the temperature of a cylinder. A control device for an injection molding machine includes a monitoring part configured to monitor, during a filling step of filling the inside of a mold device with a molding material, a change in the filling pressure acting on the molding material.

A joining member configured to join a temperature-controlled member and a temperature control jacket includes a temperature control jacket attachment part attached to the temperature control jacket, and a temperature-controlled member attachment part attached to the temperature-controlled member. The temperature control jacket attachment part includes a temperature control jacket-side opening into which a first bolt is insertable, and the temperature-controlled member attachment part includes a temperature-controlled member-side opening into which a second bolt is insertable. The temperature control jacket-side opening and/or the temperature-controlled member-side opening are configured to allow change in positions where the first and second bolts are inserted.

A joining member configured to join a temperature-controlled member and a temperature control jacket includes a temperature control jacket attachment part attached to the temperature control jacket, and a temperature-controlled member attachment part attached to the temperature-controlled member. The temperature control jacket attachment part includes a temperature control jacket-side opening into which a first bolt is insertable, and the temperature-controlled member attachment part includes a temperature-controlled member-side opening into which a second bolt is insertable. The temperature control jacket-side opening and/or the temperature-controlled member-side opening are configured to allow change in positions where the first and second bolts are inserted.

An injection molding machine includes an edge gate nozzle with a nozzle body having a primary melt channel and a nozzle head having first and second secondary melt channels that feed melt to first and second nozzle tips. First and second heaters are disposed in the nozzle head to provide heat to the secondary melt channels. In some embodiments, the heaters are positioned adjacent to the secondary melt channels, with first heater is closer to the first secondary melt channel than to the second secondary melt channel. In some embodiments, the heaters are positioned adjacent to the nozzle tips, with the first heater closer to the first nozzle tip than to the second nozzle tip. In some embodiments, each heater is adjacent to both the respective nozzle tip and secondary melt channel. In some embodiments, each heater is individually controllable.

An injection molding machine includes an edge gate nozzle with a nozzle body having a primary melt channel and a nozzle head having first and second secondary melt channels that feed melt to first and second nozzle tips. First and second heaters are disposed in the nozzle head to provide heat to the secondary melt channels. In some embodiments, the heaters are positioned adjacent to the secondary melt channels, with first heater is closer to the first secondary melt channel than to the second secondary melt channel. In some embodiments, the heaters are positioned adjacent to the nozzle tips, with the first heater closer to the first nozzle tip than to the second nozzle tip. In some embodiments, each heater is adjacent to both the respective nozzle tip and secondary melt channel. In some embodiments, each heater is individually controllable.

A method for producing multilayer objects from a polymer melt, especially in an injection mold, especially preforms having a barrier layer, wherein a viscosity, especially a shear speed, of the melt is determined. The viscosity, especially the shear speed, of at least one layer is determined in the injection mold and optionally monitored and/or regulated.