AUTOMATIC SPOOL PACKAGE EDGE QUALITY ASSESSMENT AND CORRECTION ALGORITHM FOR WINDING APPLICATIONS

摘要

A method wherein nominal spool edge positions for each winding are calculated and used to initiate winding. During winding, the shape of the winding surface (34, 39) near the spool edges (L) is calculated automatically. Preferably, an average spool (14) radius is calculated over every two revolutions near the spool edge (L). The spool radii are then automatically plotted as a function of position along the spool axis (44), and a linear regression is performed to fit a line to the radii data. The shape is then used to correct the spool edge/turnaround points (18, 20). If the shape is negative (58), indicating a reduced spool radius at the spool edge, the turnaround point is incremented outward (62) toward the flanges (38, 40) an amount proportional to the slope. If the slope is positive (66), indicating a greater spool radius at the edges, the turnaround points (18, 20) are incremented inward (70), away from the flanges (38, 40).