Design of Automatic Rolling Coating Equipment for Side Insulation Coating of Zinc Oxide Resistor
To enhance the automation rate of the production process of zinc oxide resistor chips,an automatic rolling coating device for applying insulating coatings on the side surfaces of the resistor chips was designed.An automatic rolling coating mechanism with two rollers was designed to realize rolling coating and uniform scraping of the resistor respectively.A de-stacking mechanism guided by vision was designed based on an improved YOLOv8-based point detection algorithm.The BRA module was integrated and the feature fusion method was changed to BiFPN in YOLOv8.Compared with the original YOLOv8 model,the improved YOLOv8 had achieved significant improvements in recognition accuracy,with the MAP increasing from 92.8%to 95.3%,which reduced the missed detection rate and false detection rate of resistor chips in practical applications,resulting in a relative reduction of 26.2%in the missed detection rate and 33.3%in the false detection rate.The automatic rolling coating equipment provides an efficient automated solution for coating resistors.
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