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

Noriyuki Akasaka

doi:10.20965/jrm.2004.p0348

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JRM Vol.16 No.4 pp. 348-354

doi: 10.20965/jrm.2004.p0348

(2004)

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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:

N. 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.

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References

[1] Y. Inaba, and S. Ito, “Study of Life at Ball Screw on Fully Electric Injection Molding Machine,” Journal of JSPE, Vol.65, No.6, pp. 805-809, 1999.
[2] S. Nakamura, “Electric-Motor Driven Injection Molding Machine and Ball Screw for High-Load Usage,” Journal of JSME, Vol.103, No.978, pp. 340, 2000.
[3] K. Miyaguti, M. Ninomiya, and S. Nakamura, “Uniformity of Load Distribution in Ball Screw for High-load Usage and Propagation of Life,” Journal of JSPE, Vol.67, No.2, pp. 217-221, 2001.
[4] Y. Inaba, M. Kamiguchi, and N. Neko, “Pressure Profile Trace Control on Fully Electric Injection Molding Machine (1st report) – Application of Learning Control for Flow Pressure Control,” Journal of JSPE, Vol.65, No.2, pp. 293-299, 1999.
[5] Y. Inaba, S. Matsubara, and M. Kamiguchi, “Force Control with Servomechanism in Fully Electric Injection Molding Machine,” Journal of JSPE, Vol.65, No.4, pp. 542-548, 1999.
[6] Y. Inaba,M. Kamiguchi, and N. Neko, “Pressure Profile Trace Control on Fully Electric Injection Molding Machine (2nd Report) – Application of Learning Control for Pressure Profile Editing,” Journal of JSPE, Vol.65, No.5, pp. 746-752, 1999.
[7] N. Akasaka, “Study of Similarity Law between Electric-Motor Driven Injection Molding Machine and Simulator at Injection Velocity Control,” Trans. of JSME-C, Vol.69, No.682, pp. 1662-1669, 2003.
[8] N. Akasaka, “Design Method of a Load Simulator based on the Similarity Law at the Electric-Motor Driven Injection Molding Machine Control,” Mechanical Engineering Congress, 2002 Japan, Vol.VII, pp. 275-276.
[9] N. Akasaka, “Study of Similarity Law between Electric-motor Driven Injection Molding Machine and Simulator,” Mechanical Engineering Congress, 2002 Japan, Vol.VII, pp. 273-274.

This article is published under a Creative Commons Attribution-NoDerivatives 4.0 Internationa License.

[1] [1] Y. Inaba, and S. Ito, “Study of Life at Ball Screw on Fully Electric Injection Molding Machine,” Journal of JSPE, Vol.65, No.6, pp. 805-809, 1999.

[2] [2] S. Nakamura, “Electric-Motor Driven Injection Molding Machine and Ball Screw for High-Load Usage,” Journal of JSME, Vol.103, No.978, pp. 340, 2000.

[3] [3] K. Miyaguti, M. Ninomiya, and S. Nakamura, “Uniformity of Load Distribution in Ball Screw for High-load Usage and Propagation of Life,” Journal of JSPE, Vol.67, No.2, pp. 217-221, 2001.

[4] [4] Y. Inaba, M. Kamiguchi, and N. Neko, “Pressure Profile Trace Control on Fully Electric Injection Molding Machine (1st report) – Application of Learning Control for Flow Pressure Control,” Journal of JSPE, Vol.65, No.2, pp. 293-299, 1999.

[5] [5] Y. Inaba, S. Matsubara, and M. Kamiguchi, “Force Control with Servomechanism in Fully Electric Injection Molding Machine,” Journal of JSPE, Vol.65, No.4, pp. 542-548, 1999.

[6] [6] Y. Inaba,M. Kamiguchi, and N. Neko, “Pressure Profile Trace Control on Fully Electric Injection Molding Machine (2nd Report) – Application of Learning Control for Pressure Profile Editing,” Journal of JSPE, Vol.65, No.5, pp. 746-752, 1999.

[7] [7] N. Akasaka, “Study of Similarity Law between Electric-Motor Driven Injection Molding Machine and Simulator at Injection Velocity Control,” Trans. of JSME-C, Vol.69, No.682, pp. 1662-1669, 2003.

[8] [8] N. Akasaka, “Design Method of a Load Simulator based on the Similarity Law at the Electric-Motor Driven Injection Molding Machine Control,” Mechanical Engineering Congress, 2002 Japan, Vol.VII, pp. 275-276.

[9] [9] N. Akasaka, “Study of Similarity Law between Electric-motor Driven Injection Molding Machine and Simulator,” Mechanical Engineering Congress, 2002 Japan, Vol.VII, pp. 273-274.