Development of a Filament Counter for Synthetic Fiber Yarns

It is very important to detect and eliminate yarns having irregular number of filaments. Formerly, it was done by spreading them manually and counting visually the number of filaments one by one. In order to reduce manpower needed for this manual examination and to improve the reliability of the examination, we developed a new method by which the filaments are arranged in a single layer closely packed and parallel on a stage with a saddle style guide. Then the number of filaments is automatically counted with a photo-electric device. It improves the working efficiency by 5-6 times.