The diameter of the rubber roll not only affects the pressure and the holding force of the fiber, but also affects the service life of the rubber roll. Different spinning frames, roving frames, drawing frames and combing machines have different requirements for the diameter of the top roller. From the perspective of the drafting system, the diameter of the top roller is in the order of combing>drawing>roving>spinning, which is related to the amount of fiber held by the top roller.

For the spinning frame, there are two types of diameters used for the top roller: 31 mm and 28 mm. For the top roller with a diameter of 31 mm, it is no longer used after its diameter is about 29 mm, and for the top roller with a diameter of 28 mm, it is no longer used after its diameter is about 26 mm. With the extension of the service time of the cots, the diameter of the cots decreases, the hardness of the cots increases, the aging and cracking are obvious, and the service life decreases. With the decrease of the fiber diameter, the evenness CV value increases, and the details, slubs, neps, and yarn defects increase. Therefore, for the diameter of rubber cots, in order to prevent the impact on the quality of cotton yarn, the number of grinding is increased and the amount of grinding is reduced.

What are the elastic factors that affect the high elastic rubber roll?

From the structure and composition of the cots, the elastic factors affecting the high elastic cots include the memory structure of the cots and the size of the cots diameter; The degree of vulcanization during the production of rubber cots is related to the dispersion of rubber cots and the quality of rubber cots; From the analysis of the external factors of the cots, the hardness and flatness of the double-layer and aluminum liner, the environmental temperature and humidity conditions for the production and storage of the cots, the production conditions for the processing of the cots, the flatness of the grinded cots, and the pressure on the cots during use are all factors that affect the elasticity of the cots.