| 摘要 |
<p>PURPOSE:To readily and equally divide coils even if product overall length varies by such things are providing detectors detecting the leading end of the rolling material on the upper stream than the final rolling mill of the rolling mill groups, providing a pulse transmitter to the final rolling mill and counting the number of pulses from the leading end of the rolling material subsequently reach each detector. CONSTITUTION:Wire materials 10 rolled by finishing mills n from a rolling mill 1 are wound to coil form by a raying head 11 are coils 16 are collected in coil form in a bundling device 13 via a cooling conveyor 12. Since the pulse count value within a certain time from the pulse transmitter 15 disposed to the driving motor for the finishing mills n is proportional to the length of the products advancing at a velocity Vn within said time, it is expressed like the following formula. P3=1/2(P1+P2+ Pn-1), where P3; the pulse count value from detection of the leading end with the detector MD0 until cutting with a divide device 14, P1; the pulse count value from detection of the leading end with the detector MDn until detecting with MD0, and so. Namely, at each billet, the rolling material is divide by the device 14 when the P3 obtained by the above formula is reached.</p> |
