Optimization for the Hydraulic Clamping System of an Internal Circulation Two-Platen Injection Molding Machine

Internal circulation two-platen clamping system for
injection molding machine (IMM) has many potential advantages on
energy-saving. In order to estimate its properties, experiments were
carried out in this paper. Displacement and pressure of the components
were measured. In comparison, the model of hydraulic clamping
system was established by using AMESim. The related parameters as
well as the energy consumption could be calculated. According to the
analysis, the hydraulic system was optimized in order to reduce the
energy consumption.

• Jian Wang
• Lu Yang
• Jiong Peng

• AMESim
• energy-saving
• injection molding machine
• internal circulation.

[1] D.V. Rosato, D.V. Rosato, M.G. Rosato, Injection Molding Handbook.
3rd ed. Kluwer Academic Publishers, Norwell, 2000.
[2] Y.G. Zhang, “Precision and control of accurate injection moulding,” Mod.
Plast. Plast. Process., vol. 4, pp. 32–36, Appl.1989.
[3] C. Sasikumar, S. Srikanth, S.K. Das, “Analysis of premature failure of a
tie bar in an injection molding machine,” Eng. Fail. Anal., vol. 13, pp.
1246–1259, 2006.
[4] B.M. Huang, “Four-cylinder two-platen injection molding machine and
key technologies of precision injection molding,” Plast. Ind., vol. 5, pp.
20–22, 2006.
[5] Z.W. Jiao, P.C. Xie, Y. An, X.T. Wang, W.M. Yang, “Development of
internal circulation two-platen IMM for thermoplastic polymer,” J. Mater.
Proces. Tech., vol. 211, pp. 1076–1084, 2011.
[6] W. Wohlrab, “Mold-closing apparatus for injection-molding machine,”
U.S. Patent 5336462, Aug. 1994.
[7] B. Huang, “Direct hydraulic clamping mechanism for two-platen internal
circulation,” Patent of China 200910213625.5, Jun. 2010.