Study On The Interference Principle And Related Research Of Compact Spinning Yarn With Lattice Apron

In the conventional ring twisting triangle area,the difference of the length of the fibers,elongation and suffered spinning tension lead to the radial transfer and repeated wrapping between fiber inside and outside during the yarn forming process.On the one hand,hairiness is formed because tail-end of the edge fibers are not easy to be involved in the spun yarn.And edge fibers and center fibers are under different tension.Thus,they could not simultaneously break when they are stretched and each single fiber strength can not be made full use and the single yarn strength is reduced at last.On the other hand,since transferred force among fiber is imbalance,the cohesion of friction among fibers is enhanced because of the fiber wrapping repeated from inside and outside,the structure also offer a positive effect on strength and wear resistance.The compact spinning technology is a major breakthrough in ring spinning technology field,it abates twisting triangle of traditional ring spinning process,reducesthe transfer of fiber and made the twisting sliver become cylindrical from flat.so,the yarn structure is changed.Because greatly twisting triangle is greatly reduced and twist can be extended directly to output front roller jaw line,hairiness is significantly reduced,tensile strength is also enhanced.But in the compact spinning,because of the high-power drafting of the fibers in the yarn,fibers are very parallel and hardly intertwined.Under the external force,the yarn can only rely on the lateral friction among the fibers to provide strength,and does not give full play to the strength of the fiber itself.In addition,the compact spinning reduces the harmful hairiness but also greatly reduces the beneficial hairiness.It is just in this background,there is interference compact spinning technology application just born.Interference compact spinning technology is through the use of an electromagnetic,air or mechanical means to interfere compact spinning yarn appropriately,make a certain amount mutual intertwined of fiber in the single yarn,thus make the yarn of single yarn strength and abrasion resistance improved,make the beneficial hairiness get reservations as well,which can eventually make yarn to reach optimization.This paper is based on the mechanical model's establishment and analysis of the interference compact spinning yam.A series system research aspects about the interference compact spinning fiber cross the transfer of the conditions,winding fibers stress analysis after the yarn twisting,the tensile breaking strength of the yarn and elongation of the fibers within the yarn,the analysis of the strength of fibers in the core yam after the law of entanglement,yarn breaking mechanism and theory,contribution form between the tangled fibers and parallel fibers of the yarn has been researched.Thus obtain the theoretically verification and conclusion that a interference compact yarn's strength is obvious higher than a compact yam.We design and the transform the compact spinning device,and select the best interference of the compact spinning device to take the subsequent spinning experiments.After that,we can take the performance testing of the yarn sample of ordinary compact spinning and the sample after the interference of compact spinning.After comparing the experimental data we know that the yarn sample that after the interference of compact spinning device can be increased the single yarn strength and the wear resistance.The quality of yarn can also be improved,in order to further validate the theory of the contribution for yarn strength of the entangled fibers.