Improved design of she people’s “cai-dai” weaving loom based on the protection of the intangible cultural heritage in china

China is a treasure trove of intangible cultural heritages. The She people is one of the farming minorities in China. Based on the understanding of the She people’s handicrafts, It was found that there are some problem about the weaving loom: First, the craftsman needs to work at the desk for a long time and lower head, causing cervical spine disease. Secondly, repetitive actions caused shoulder injury. Third, Craftsmen only use upper limbs at work when weaving, and lower limbs are not sufficiently applied to the ribbon weaving process. Aiming at these problems, the scheme of improving the “Cai-Dai” loom is proposed. The digital model of the knitting machine was built by Rhino. The TAT tool in the human factor simulation software named JACK was used to analysis dynamic working strength and predict static strength. The results show that the ribbon loom with ergonomic design has better comfort.