An injection molding system includes: an injection molding machine; an inspection device including a first placement unit, a second placement unit, an inspection unit, and a moving unit configured to change a relative position between the first placement unit and the inspection unit and a relative position between the second placement unit and the inspection unit; a third placement unit; a robot configured to convey the molded object; and a control device. The control device controls the injection molding machine, the robot, and the inspection device so as to mold a first molded object during a first molding period, inspect the first molded object placed on the first placement unit during a first inspection period, convey the first molded object after inspection from the first placement unit to the third placement unit during a first conveyance period, mold a second molded object during a second molding period, inspect the second molded object placed on the second placement unit during a second inspection period, convey the second molded object after inspection from the second placement unit to the third placement unit during a second conveyance period, and overlap the first inspection period and the second molding period and overlap the second inspection period and the first conveyance period.

An injection molding system includes: an injection molding machine; an inspection device including a first placement unit, a second placement unit, an inspection unit, and a moving unit configured to change a relative position between the first placement unit and the inspection unit and a relative position between the second placement unit and the inspection unit; a third placement unit; a robot configured to convey the molded object; and a control device. The control device controls the injection molding machine, the robot, and the inspection device so as to mold a first molded object during a first molding period, inspect the first molded object placed on the first placement unit during a first inspection period, convey the first molded object after inspection from the first placement unit to the third placement unit during a first conveyance period, mold a second molded object during a second molding period, inspect the second molded object placed on the second placement unit during a second inspection period, convey the second molded object after inspection from the second placement unit to the third placement unit during a second conveyance period, and overlap the first inspection period and the second molding period and overlap the second inspection period and the first conveyance period.

A plasticizing device includes a rotor which has a groove forming surface provided with a groove, which rotates centering on a rotational axis, and a side surface of which is provided with a supply port communicated with the groove, a barrel which has an opposed surface opposed to the groove forming surface in a direction in which the rotational axis extends, and which is provided with a communication hole from which a material plasticized outflows, a heating unit configured to heat the material supplied via the supply port, and a housing configured to house the rotor, wherein the housing is provided with a first supply path and a second supply path configured to supply the material to the supply port.

A plasticizing device includes a rotor which has a groove forming surface provided with a groove, which rotates centering on a rotational axis, and a side surface of which is provided with a supply port communicated with the groove, a barrel which has an opposed surface opposed to the groove forming surface in a direction in which the rotational axis extends, and which is provided with a communication hole from which a material plasticized outflows, a heating unit configured to heat the material supplied via the supply port, and a housing configured to house the rotor, wherein the housing is provided with a first supply path and a second supply path configured to supply the material to the supply port.

A heating cylinder heater includes a plurality of infrared heaters disposed around a heating cylinder in a non-contact manner with respect to the heating cylinder, a heat insulating material provided outside the infrared heaters, and a cover configured to cover the heat insulating material. The cover has two or more opening portions, and a part or all of the two or more opening portions are each provided with an opening-closing device that is configured to open and close the corresponding opening portion.

A heating cylinder heater includes a plurality of infrared heaters disposed around a heating cylinder in a non-contact manner with respect to the heating cylinder, a heat insulating material provided outside the infrared heaters, and a cover configured to cover the heat insulating material. The cover has two or more opening portions, and a part or all of the two or more opening portions are each provided with an opening-closing device that is configured to open and close the corresponding opening portion.

A plasticizing device includes: a rotary body having a groove forming surface in which a groove is formed and having a screw configured to rotate; a barrel having a facing surface facing the groove forming surface and having a communication hole through which a plasticized material flows out to an outside; a heating unit configured to heat the material supplied to the groove; a screw case accommodating the screw; and a biasing portion configured to bias the rotary body from the screw case toward the rotary body and having a rotary member having a hardness lower than that of the rotary body at a tip end, or a sealing portion configured to seal a fluid in a space between the screw case and the rotary body.

A plasticizing device includes: a rotary body having a groove forming surface in which a groove is formed and having a screw configured to rotate; a barrel having a facing surface facing the groove forming surface and having a communication hole through which a plasticized material flows out to an outside; a heating unit configured to heat the material supplied to the groove; a screw case accommodating the screw; and a biasing portion configured to bias the rotary body from the screw case toward the rotary body and having a rotary member having a hardness lower than that of the rotary body at a tip end, or a sealing portion configured to seal a fluid in a space between the screw case and the rotary body.

A plasticizing device includes a first flat screw including a first groove forming surface in which a groove is formed and configured to rotate; a second flat screw including a second groove forming surface in which a groove is formed and configured to rotate; a barrel including a first facing surface facing the first groove forming surface and a second facing surface facing the second groove forming surface and formed with a communication hole through which a plasticized material is fed outside; and a heating section configured to heat the material supplied to the grooves of the first flat screw and of the second flat screw.

A plasticizing device includes a first flat screw including a first groove forming surface in which a groove is formed and configured to rotate; a second flat screw including a second groove forming surface in which a groove is formed and configured to rotate; a barrel including a first facing surface facing the first groove forming surface and a second facing surface facing the second groove forming surface and formed with a communication hole through which a plasticized material is fed outside; and a heating section configured to heat the material supplied to the grooves of the first flat screw and of the second flat screw.