JPS56139202A - Cold rolling plant - Google Patents

Abstract

PURPOSE: To make the cold rolling plant possible to perform whichever of the ordinary rolling process and the double feed rolling process, by using a rolling line in which an uncoiler, a welder, a looper, a mechanical descaler, a coiler, an uncoiler a cold rolling mill, a hydraulic tension leveler, and a coiler are successively arranged, and a coil's side plane cutter installed on the outside of the said rolling line.

CONSTITUTION: A coil's side plane cutter 17 is installed on the outside of a rolling line in which an uncoiler 1, a welder 3, a looper 5, a mechanical descaler 7, a couple of coilers 8, a couple of uncoilers 10, a cold rolling mill 11, a hydraulic tension leveler 12, and a couple of coilers 16 are successively arranged. In the case of performing an ordinary rolling process, it is performed according to the ordinary rolling schedule; but in the case of performing a double feed rolling process, the strip is descaled, a required length of the strip is coiled by one of the coilers 8, the strip is cut by the shear 34, and the strip coil is stored in the coiler 8 temporarily. Then, the strip coils are set in both of uncoilers 10 which uncoil these coils at the same time and thereby the doubled strips S are fed into the cold rolling mill 11 for performing the double feed rolling process.

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