Analyzing static positive pressure of double apron drafting assembly of spinning frame

To investigate the working situation of the drafting assembly of the frame,we used UG to develop a 3-D finite element model and carried out simulation analysis of the working situation of the drafting assembly of the frame,so the distribution of positive pressure between the top and bottom aprons is figured out using the software ABAQUS.The practical distribution of positive pressure between the top and bottom aprons is obtained through experiment.It is found through analyzing these methods that the distribution rule and value of the positive pressure obtained by these two methods are basically in agreement,except certain variations of value in the apron and roller nips,indicating that the finite element model is correct.The simulation analysis can be used in designing the drafting assembly of spinning frames.