Blow molding device and interface device provided in blow molding device

An interface device configured to be provided to a blow molding device that blow molds a preform into a hollow body, the preform being obtained by injection molding, the interface device comprising:

• a display device configured to display, on a setting screen, information for setting control conditions for a plurality of control targets;
• and
• a processor and a memory that stores an instruction, wherein upon execution of the instruction, the processor operates as a display control device configured to control a display state of the setting screen, the display control device being configured to:
• cause a main display section to display the information for setting the control conditions as required;
• and
• cause a sub-display section, that is constantly displayed, to constantly display:
• status information, via a plurality of icons, for perceiving operational states of the control targets;
• and a display switching icon for causing the main display section to display operating icons of the control targets,
• wherein the display control device is configured to cause the main display section to display control condition groups for the plurality of control targets with one screen as required, the control condition groups having correlativity, and
• wherein the plurality of control targets are equipment and molding stations.