Suitability of cycloidal cam in shedding mechanism

摘要

A suitable cycloidal cam has been designed and compared with the simple harmonic cam to study the behaviour of warp yarn tension and warp breakage rate. Electronic tensiometer was used to measure the tension of the warp yarn during weaving with and without shuttle for both types of cam to understand the effect of shuttle propulsion on warp yarn tension. It is observed that the warp breakage rate is comparatively less in case of cycloidal cam. The tension behaviour is also found to be smoother in case of cycloidal cam.