Control apparatus for injection molding machine
AssigneeNissei Plastic Industrial Co., Ltd.
InventorsTakayoshi Shioiri, Eiki Iwashita, Yoshitoshi Yamagiwa
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Abstract
Test molding and mass-production molding are performed by an injection molding machine that includes a control apparatus in which neural networks are used. A quality prediction function determined based on the test molding is revised as necessary during mass-production molding.
Claims4
A control apparatus for an injection molding machine, said apparatus having a neural network and operating so that information on test molding is inputted to the neural networks, a quality prediction function is determined by repeating the estimation of weight factors and thresholds on the neural networks as many times as the number of test molding cycles, and mass-production molding is begun with the quality prediction function, said control apparatus further comprising:
- an upper/lower control limit determination unit for setting an upper control limit and a lower control limit for each of the monitor values that indicate the state in each part of a molding machine;
- and
- a function revision need determining unit for setting the range between the upper control limit and lower control limit set by the upper/lower control limit determination unit as the control range, and outputting a revision command for the quality prediction function and/or generating an alarm signal from an alarm signal generating unit when the monitor values acquired during mass-production molding have deviated from the control range.
Dependencies are inferred from the claim text.