The Effect To The Weaving Defects In The Let-off Mechanism Used For Silk Loom In The K251type And The Design Of Improved Project

The author made an analysis of the ratchet gearing used let-off mechanism in the K251 type loom and of the effect to loomage, and came to the conclusion that is: 1. The long length of the loom cause bigger LO, which reduce weaving defects caused by let-off error. 2. At the same status of the loom, the possibility of appearing weaving defects is relative to the characteristic of the loomage, namely, if the stiffness coefficient of the loomage and organzine has lesser difference, the possibility of appearing weaving defects will be lesser, contrarily will bebiggish. 3. The displacement error AL affects the value of the weavingdefects directly, besides wind error, it is a effective method to reduce let-off error. The primary source of let-off error is ratchet gearing, so the author proposed a reformative design project-use friction roller free-wheeling clutch instant of pawl mechanism, and also proposed to use logarithm helical curve instant of planar plane of action, this method improved the reliability and the useful life of the clutch consumedly. The projects make it possible to improve products quality and ameliorate weaving machine ulteriorly.