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US 2026/0124797 A1Published application
Injection Molding Machine, Injection Device, and Method of Controlling Injection Molding Machine
AssigneeThe Japan Steel Works, Ltd.
InventorsMegumi OTANI, Naoyuki Seishin, Tomoki Masuda
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Abstract
An injection molding machine heats an injection nozzle using, as a target temperature, a detected temperature of a synchronization zone, when a detected temperature of the injection nozzle is lower than a nozzle reference temperature. The injection molding machine heats the injection nozzle using a nozzle set temperature as a target temperature, when a detected temperature of the injection nozzle is higher than the nozzle reference temperature.
Claims20
An injection molding machine comprising:
- an injection device that melts and injects an injection material;
- a mold clamping device that clamps a mold into which the injection material has been injected;
- and
- a controller that controls the injection device, wherein the injection device includes:
- a cylinder;
- a screw that is placed in the cylinder and heats the injection material into a molten material;
- a nozzle that is placed at a distal end of the cylinder and injects, into the mold, the molten material generated by heating;
- a nozzle temperature sensor that detects a temperature of the nozzle;
- a cylinder temperature sensor that detects a temperature of the cylinder;
- and
- a heating device that is controlled by the controller and configured to heat the nozzle and the cylinder independently of each other, and
- the controller is configured to control the temperature of the nozzle based on the temperature detected by the cylinder temperature sensor, so as not to exceed the temperature of the cylinder.
9 more elements
An injection device comprising:
- a cylinder;
- a screw that is placed in the cylinder and heats an injection material into a molten material;
- a nozzle that is placed at a distal end of the cylinder and injects, into a mold, the molten material generated by heating;
- a nozzle temperature sensor that detects a temperature of the nozzle;
- a cylinder temperature sensor that detects a temperature of the cylinder;
- and
- a heating device configured to heat the nozzle and the cylinder independently of each other, wherein
- the temperature of the nozzle is controllable so as not to exceed the temperature of the cylinder, based on the temperature detected by the cylinder temperature sensor.
5 more elements
A method of controlling an injection molding machine,
- the injection molding machine comprising:
- an injection device that melts and injects an injection material;
- and
- a mold clamping device that clamps a mold into which the injection material has been injected;
- the injection device including:
- a cylinder;
- a screw that is placed in the cylinder and heats the injection material into a molten material;
- and
- a nozzle that is placed at a distal end of the cylinder and injects, into the mold, the molten material generated by heating,
- the method comprising:
- (a) controlling, based on a temperature of the cylinder, a temperature of the nozzle so as not to exceed the temperature of the cylinder.
8 more elements
Dependencies are inferred from the claim text.