0
TECHNICAL PAPERS

Modeling and Control of an Electro-hydraulic Injection Molding Machine With Smoothed Fill-to-Pack Transition*

[+] Author and Article Information
Danian Zheng, Andrew Alleyne

Dept. of Mechanical and Industrial Engineering, University of Illinois, Urbana-Champaign, Urbana, IL 61801

J. Manuf. Sci. Eng 125(1), 154-163 (Mar 04, 2003) (10 pages) doi:10.1115/1.1540126 History: Received July 01, 2000; Revised October 01, 2001; Online March 04, 2003
Copyright © 2003 by ASME
Your Session has timed out. Please sign back in to continue.

References

Agrawal,  A. R., Panelidis,  I. O., and Pecht,  M., 1987, “Injection-Molding Process Control—A Review,” Polym. Eng. Sci., 27(18), pp. 1345–1356.
Ehret, P., Davidoff, A., Jacque, F., and Bung, H., 1998, “Simulation of the Complete Injection Cycle,” Annual Technical Conference—ANTEC, Conference Proceedings, Publ. by Soc of Plastics Engineers, Brookfield, CT, Pt 1, pp. 542–544.
Brincat, P., Friedl, C., and Talwar, K., 1998, “Extensional Viscosity Modeling for Injection Molding Simulation,” Proceeding Annual Technical Conference—ANTEC, Conference Proceedings, Vol. 1, Soc. Plast Eng, Brookfield, CT, pp. 552–556.
Havlicsek, H., and Alleyne, A., 1999, “Nonlinear Modeling of an Electrohydraulic Injection Molding Machine,” Proceedings of the 1999 American Controls Conference, San Diego, CA, pp. 171–175.
Rafizadeh,  M., Patterson,  W. I., and Kamal,  M. R., 1996, “Physically-Based Model of Thermoplastics Injection Molding for Control Applications,” Int. Polym. Process., XI, pp. 352–362.
Guerrier, P. K., and Edge, K. A., 1999, “Injection Molding Simulation for Hydraulic Valve-Actuator System Controller Design,” Proc. of the 1999 ASME IMECE FPST, Vol. 6, pp. 103–108.
Thayer, W. J., and Davis, M. A., 1980, “Controls for Injection Molding of Thermoplastics,” Moog Technical Bulletin No. 145, Moog Inc., East Aurora, NY.
Tsoi, H., and Gao, F., 1998, “Fuzzy Logic Controller for Injection Ram,” Processing Annual Technical Conference-ANTEC, Conference Proceedings, Vol. V1, pp. 641–644.
Gao,  F., Patterson,  W. I., and Kamal,  M. R., 1996, “Cavity Pressure Dynamics and Self-Tuning Control for Filling and Packing Phases of Thermoplastics Injection Molding,” Polym. Eng. Sci., 36 (9).
Havlicsek,  H., and Alleyne,  A., 1999, “Nonlinear Control of an Electrohydraulic Injection Molding Machine via Iterative Adaptive Learning,” IEEE/ASME Trans. on Mechatronics 4(3), pp. 312–323.
Uram,  R., 1971, “Bumpless Transfer under Digital Control,” Control. Eng., 18(3), pp. 59–60.
Campo,  P. J., and Morari,  M., 1990, “Robust Control of Processes Subject to Saturation Nonlinearities,” Comput. Chem. Eng., 14, pp. 343–358.
Astrom, K. J., and Wittenmark, B., 1984, Computer Controlled Systems Theory and Design, 2nd ed., Prentice Hall, Englewood Cliffs, NJ.
Zheng, D., and Alleyne, A., 2000, “Learning Control of an Electro-hydraulic Injection Molding Machine with Smoothed Fill-to-Pack Transition,” Proc. of the 2000 ACC, Chicago, IL.
Graebe,  S. F., and Ahlen,  A., 1996, “Dynamic Transfer Among Alternative Controllers and Its Relation to Antiwindup Controller Design,” IEEE Trans. Control Syst. Technol., 4(1), pp. 92–99.
Zheng, D., and Alleyne, A., 2000, “Control-Oriented Modeling of an Injection Molding Machine Including the Fill-to-Pack Transition,” Proc. of the 2000 ASME IMECE, Orlando, FL.
Watton, J., 1989, Fluid Power Systems, University Press, Cambridge.
Karnopp,  D., 1985, “Computer Simulation of Stick-Slip Friction in Mechanical Dynamic Systems,” ASME J. Dyn. Syst., Meas., Control, 107, pp. 100–103.
Abu Fara, 1983, D., M. Eng thesis, Dept. of Chemical Engineering, Montreal, PQ. McGill University.
Horowitz,  R., 1993, “Learning Control of Robot Manipulators,” ASME J. Dyn. Syst., Meas., Control, 115, June, pp. 402–411.
Messner,  W., Horowitz,  R., Kao,  W., and Boals,  M., 1990, “A New Adaptive Learning Rule,” IEEE Trans. Autom. Control, 36(2), pp. 188–197.

Figures

Grahic Jump Location
Injection cycle phases (Thayer and Davis 7)
Grahic Jump Location
Mechanical schematic of IMM machine
Grahic Jump Location
Polymer flow viscosity characteristics
Grahic Jump Location
Ram-screw—nozzle system during packing phase
Grahic Jump Location
Ram position and pressure—position control only
Grahic Jump Location
Pressure and ram position—pressure control only
Grahic Jump Location
Pressure and ram position—whole injection cycle
Grahic Jump Location
Line pressure transient
Grahic Jump Location
Latent tracking bumpless transfer scheme 9
Grahic Jump Location
“Closed loop” filling and packing phase ILC
Grahic Jump Location
IMM Implementation of bumpless transfer algorithm
Grahic Jump Location
Simulated convergence—position and pressure error
Grahic Jump Location
Injection molding part from experiment
Grahic Jump Location
Packing without (a) and with (b) bumpless transfer
Grahic Jump Location
Experimental convergence—position and pressure error

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In