Injection molding machine and control method thereof
AssigneeDelta Electronics, Inc.
InventorsChia-Chun LEE, Po-Lung HUANG
Life of this patent
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Abstract
An injection molding machine and control method thereof are provided. The machine obtains a target flow value. The machine lookup a compensation table to select a first command from multiple control commands based on the target flow value and a current oil temperature of hydraulic oil, wherein the compensation table records multiple flow values of the hydraulic oil at multiple oil temperatures. The machine controls a motor based on the first command.
Claims20
An injection molding machine, comprising:
- a pump;
- a motor, configured to drive the pump so that a hydraulic oil flows out of the pump;
- a temperature sensor, configured to measure a current oil temperature of the hydraulic oil;
- a storage, configured to store a compensation table, wherein the compensation table is configured to record a plurality of corresponding flow values of the hydraulic oil at a plurality of oil temperatures;
- and
- a processor, electrically connected to the motor, the temperature sensor and the storage, wherein the processor is configured to perform following operations:
- obtaining a target flow value;
- looking up the compensation table according to the target flow value and the current oil temperature to select a first command from a plurality of control commands;
- and
- controlling the motor according to the first command.
A control method, adapt to an injection molding machine, wherein the injection molding machine comprises a pump, a motor and a temperature sensor, the motor is configured to drive the pump so that a hydraulic oil flows out of the pump, the temperature sensor is configured to measure a current oil temperature of the hydraulic oil, and wherein the control method comprises following steps of:
- obtaining a target flow value;
- looking up a compensation table according to the target flow value and the current oil temperature to select a first command from a plurality of control commands, wherein the compensation table is configured to record a plurality of corresponding flow values of the hydraulic oil at a plurality of oil temperatures;
- and
- controlling the motor according to the first command.
Dependencies are inferred from the claim text.