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JRM Vol.16 No.4 pp. 348-354
doi: 10.20965/jrm.2004.p0348
(2004)

Paper:

Synchronous Positioning Control in Pressure Control Among Multi-AC Servomotors in Injection Molding Machine

Noriyuki Akasaka

Department of Control and Information Engineering, Kurume National College of Technology, 1-1-1 Komorino, Kurume-City, Fukuoka 830-8555, Japan

Received:
October 24, 2003
Accepted:
July 13, 2004
Published:
August 20, 2004
Keywords:
synchronous positioning control, multi-AC servomotor, pressure control, velocity control, injection molding machine, simulator apparatus
Abstract

With the trend toward higher-power electric-motor-driven injection molding machines, multi-AC servomotor control is needed to control the molding machine, making synchronous positioning control inevitable to prevent excessive mechanical stress in equipment. Synchronous positioning control in injection velocity control is implemented by using position feedback signals from motor pulse generators. In injection pressure control synchronous positioning control is difficult to realize because pressure-detector signals are used in place of position feedback signals. We clarified synchronous positioning control during injection pressure control by using both pressure-detector and position feedback signals. Simulation results showed that synchronous positioning control error was less than ±4μm in pressure control.

Cite this article as:
Noriyuki Akasaka, “Synchronous Positioning Control in Pressure Control Among Multi-AC Servomotors in Injection Molding Machine,” J. Robot. Mechatron., Vol.16, No.4, pp. 348-354, 2004.
Data files:
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