Injection molding machine and temperature control method of injection molding machine
AssigneeSumitomo Heavy Industries, Ltd.
InventorMasashi Onishi
Life of this patent
Estimating the term…
Abstract
In an injection molding machine, a plurality of temperature sensors for detecting temperatures are provided at a plurality of positions of a heating-cylinder provided with a heater. A control device controls an input to the heater by selectively using temperature detection values output from the temperature sensors. Therefore, a temperature distribution of the heating-cylinder can be set and changed with high accuracy.
Claims9
An injection molding machine comprising:
- a cylinder provided with a heater;
- a plurality of temperature sensors provided at a plurality of positions of the cylinder to detect temperatures at the plurality of positions of said cylinder;
- and
- a control device that controls an input to said heater by selectively using temperature detection values output from the temperature sensors.
A temperature control method of an injection molding machine having a cylinder extending in a longitudinal direction and a heater provided to surround a periphery of the cylinder, comprising:
- detecting temperatures of a plurality of positions of the cylinder;
- selecting a temperature detection value used for controlling a temperature of said cylinder from temperature detection values detected at the plurality of positions;
- and
- controlling the temperature of said cylinder by using the selected temperature detection value.
Dependencies are inferred from the claim text.