Title:
OIL PRESSURE CONTROL UNIT OF INJECTION MOLDING MACHINE AND OIL PRESSURE CONTROL METHOD USING THE SAME
Document Type and Number:
Japanese Patent JP3566248
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent wasteful consumption of energy.
SOLUTION: The oil pressure control unit of an injection molding machine has an actuator, an oil pressure supply source, an adjusting device for adjusting at least one of the amount and pressure of oil supplied to the actuator, an accumulator 28, an accumulator pressure detection part for detecting the pressure of the accumulator, an accumulator pressure control part for controlling the pressure of the accumulator, an accumulator pressure judging processing means for judging whether the pressure of the accumulator is sufficiently higher than the pressure of the actuator and an accumulator pressure altering processing part for lowering a set value when the pressure of the accumulator is sufficiently higher than the pressure of the actuator.
Inventors:
Mitsuaki Amano
Application Number:
JP2001348601A
Publication Date:
September 15, 2004
Filing Date:
November 14, 2001
Export Citation:
Assignee:
Sumitomo Heavy Industries Ltd.
International Classes:
B29C45/76; B29C45/82; F15B1/033; B29C45/50; (IPC1-7): B29C45/76
Domestic Patent References:
| JP5092462A | ||||
| JP10272666A | ||||
| JP11245275A |
Attorney, Agent or Firm:
Makoto Kawai
Mamoru Shimizu
Toshiaki Aoki
Mamoru Shimizu
Toshiaki Aoki