What is the influence of the diameter of the rubber roller on the spinning quality

The diameter of the rubber roller not only affects the pressure and fiber holding power, but also affects the service life of the rubber roller. Different spinning frames, roving frames, drawing frames, and combing machines have different requirements for the diameter of the rubber rollers. From the perspective of the drafting system, the diameter of the rubber rollers is combing>drawing>roving>spun yarn. The amount of fiber held by the roller is related. As far as the spinning frame is concerned, the diameter of the rubber roller is 31 mm and 28 mm. For the 31 mm diameter rubber roller, it is generally used until the diameter is about 29 mm and then no longer used. For the 28 mm rubber roller, it is used. It is no longer used after the diameter is about 26 mm. With the extension of the use time of the rubber roller, the diameter of the rubber roller decreases, the hardness of the rubber roller increases, the aging cracks are obvious, and the service life is reduced. As the fiber diameter decreases, the even CV value of the cotton yarn increases, the details and the coarseness are increased. Knots, neps, and yarn defects increase. Therefore, for the diameter of the rubber roller, in order to prevent the impact on the quality of the cotton yarn during use, it is better to increase the number of grinding times and reduce the amount of grinding.