In a temperature control device, a resin flow channel is formed from a nozzle section and a cylinder section that is connected to the nozzle section and the device controls the temperature of the resin that flows in the resin flow channel. The temperature control device is provided with: a first temperature sensor for detecting the nozzle temperature of the resin flowing through the nozzle section; a first temperature control unit for performing PID control so that the nozzle temperature achieves a first target temperature; multiple second temperature sensors for detecting the cylinder temperature of the resin flowing through the cylinder section; and second temperature control units for performing PID control so that the cylinder temperature achieves a second target temperature. The second temperature control units perform PID control of the cylinder temperature using temperature control information from the first temperature control unit.

A three-dimensional shaping apparatus includes a plasticizing unit, a nozzle, a stage, and a control unit, wherein the plasticizing unit includes a driving motor, a screw, a barrel, and a first heater that heats a material supplied between the screw and the barrel, and the control unit performs a process of decreasing an output of the first heater when at least one of a first condition, a second condition, and a third condition is satisfied, provided that the first condition is that a measurement value of a first temperature sensor that measures a temperature of the screw or the barrel is larger than a first predetermined value, the second condition is that a torque value of the driving motor is smaller than a second predetermined value, and the third condition is that a measurement value of a pressure sensor that measures a pressure in a flow channel between a communication hole and a nozzle opening is smaller than a third predetermined value.

The molding machine includes a cylinder, a screw built in the cylinder, and a state detection device. The state detection device includes a sensor for detecting a state of the screw. The state detection device is attached to the screw outside the cylinder.

In a continuous kneading apparatus according to an embodiment, for each of a plurality of ring-shaped heaters, a control unit determines a current state and a reward for an action selected in the past based on a control error calculated from an acquired temperature; updates a control condition based on the reward, and determines an optimum action corresponding to the current state under the updated control condition, the control condition being a combination of a state and an action; and controls a target ring-shaped heater based on the optimum action.

A method for determining an actual volume Vr of an injection-moldable compound during an injection-molding process is disclosed. The injection-moldable compound is introduced into at least one cavity of the mould. The method includes the steps of: a) determining a theoretical volume Vt from process variables at least during a filling phase of the injection-molding process, b) determining and/or measuring at least one value for at least one compound pressure pM, c) selecting a material-specific compression k (p), corresponding to the value of pM, of the injection-moldable compound, and d) calculating an actual volume Vr by taking into account the compression k (p).

A method is disclosed for micro-molding articles. The method comprises melting and pre-pressurizing thermoplastic material to a first level, within a plasticizing barrel. The melt pressure of the thermoplastic material is manipulated to a second level, within a hot runner. The melt pressure of the thermoplastic material is manipulated to an ultra-cavity packing pressure within a valve gate nozzle.

A technique for managing a shear heating value of a molding material is provided. A control device of an injection molding machine individually controls outputs of a plurality of heating units for a plurality of zones, respectively, into which a cylinder is divided in a flow direction of a molding material. The control device acquires the output of the heating unit provided in a predetermined zone both in a steady state in which an operation of a screw provided inside the cylinder is stopped and at a time of molding at which the operation of the screw is performed, and calculates a difference in output of the heating unit provided in the predetermined zone between at a time of molding and in the steady state.

A detector attachment unit is provided that has at least two or more mounting hole sections for which the temperature detector is detachably attached to the outer surface of the heating cylinder and the temperature detector can be attached at different selected positions in at least the axial direction of the heating cylinder. The temperature control system includes an inner wall face temperature conversion function unit to perform conversion processing to convert the heating temperature detected by the temperature detector to the inner wall face temperature of the heating cylinder, and an inner wall face temperature display function unit to perform at least display processing on the inner wall face temperature obtained by this inner wall face temperature conversion function unit.

An injection molding apparatus comprising:

An actuator having a driver receiving electrical energy or power from an electrical drive, the electrical drive comprising an interface, the electrical drive being housed within or by and actuator housing or being mounted on or to the housing, the housing and the electrical drive being mounted on, to or in close proximity to the heated manifold, a cooling device disposed between the heated manifold and the housing adapted to substantially isolate or insulate at least the electrical drive from communication with heat emanating from the heated manifold or to heat sink or absorb heat communicated or communicable to the electrical drive from the heated manifold or both.

An injection molding machine includes a cylinder housing molten resin, a discharge nozzle communicating with the cylinder, and a piston that slides inside the cylinder and pressurizes the molten resin inside the cylinder to discharge the molten resin through the discharge nozzle. The injection molding machine includes a target pressure acquisition part that acquires a target pressure that is a target value in pressurizing the molten resin inside the cylinder, a measured pressure detection part that detects a measured pressure of the molten resin inside the cylinder, and an abnormality detection part that detects an abnormality based on the target pressure and the measured pressure.