Abstract
AbstractA developed method for online control of equipment parameters in blow molding was proposed in this paper. It aimed to investigate the product quality fluctuation caused by the drift of parameters in the production process. The processing parameters and product quality data were got through orthogonal experiments. The product quality index predictor was established by random forest. The product quality indicators were monitored in real time. When the product quality indicators were out of the allowable range, the collaborative control strategy would adjust process parameters to return to the set value according to the quality indicator in time. In this paper, high density poly ethylene (HDPE) was used as the raw material, and the processing of intermediate bulk container (IBC) tank was taken as an example to verify the effectiveness of this method. The experimental results revealed that the developed control method can predict the change of product quality in real time and keep the product quality index to a reasonable range.KeywordsBlow moldingCollaborative controlProcess parametersRandom forest
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