Abstract:

The high speed operation of the roving frame results in the size of roving package increasing continuously. Under these circumstances, a question is posed, that is, whether the traditional theory still applies to the relationship between the initial roving layer thickness and the final roving layer thickness. This paper discussed this question based on the roving layer thickness increasing in accordance with the laws of arithmetic progression, measured the outside diameter of winding roving package through measuring the perimeter of the winding roving package, and then used MatLab to fit the data measured and figured out the equation governing the relationship between the outside diameter of winding roving package and the number of roving layer. The equation’s correlation coefficient reached 99.99%. The results showed that the times between the final roving thickness per layer and the initial roving thickness per layer changed from 1.3 to 1.33-1.60. This indicated that due to the increase of roving package size, a new change has occurred with the relationship between the initial roving layer thickness and the final roving layer thickness.