The purpose of winding and arranging the wire is to wind the enameled wire on the bobbin continuously, tightly and evenly. It is required that the wire take-up mechanism has a smooth transmission, low noise, proper tension and regular wire arrangement. In the quality problem of enameled wire, the proportion of returned products is very large due to poor take-up and wire arrangement, which is mainly manifested in the large take-up tension, the thinning of the wire diameter or the bursting of the wire reel; Loose lines cause chaotic lines, and uneven cables cause chaotic lines. Although most of these problems are caused by improper operation, necessary measures should also be taken in the process to bring convenience to operators.
The take-up tension is very important, which is mainly controlled by the operator’s feel. According to experience, some data are provided as follows: thick wires about 1.0mm are about 10% of the non-stretching tension, the middle wire is about 15% of the non-stretching tension, the thin wire is about 20% of the non-stretching tension, and the fine wire is about 10% of the non-stretching tension. 25%.
It is very important to reasonably determine the wire speed and take-up wire speed ratio. If the line spacing is too small, the lines on the spool will be uneven. If the line spacing is too small, the last few circles of lines will press on the previous circles of lines when the line is taken up. If it is pressed under the previous circle of wire, the user will break the wire when using it, which will affect the use. The wire spacing is too large, the first batch of wires and the second batch of wires are arranged in a cross shape, the enameled wire on the wire reel has many gaps, the capacity of the wire reel is reduced, and the appearance of the enameled wire is chaotic. Generally, the center distance between the lines of the coil with a smaller core is three times the diameter of the line; for the coil with a larger diameter, the center distance between the lines is three to five times the diameter of the line. The line speed ratio reference value is 1:1.7~2.
Empirical formula T= π(R+r)×L/2V×D×1000
T—one-way travel time of the cable (min) R—diameter of the side plate of the spool (mm)
r—Spool diameter (mm) L—Spool opening distance (mm)
V—Linear speed (m/min) D—Outer diameter of enameled wire (mm)