Patent ID: 9352367
Filing Date: 2016-05-31
CPC Classification: B21B

Claim Text:
1. Cold rolled material manufacturing equipment, comprising: an unwinding device for unwinding a hot rolled coil after acid pickling; a joining device, disposed on an exit side of the unwinding device, for joining a tail end of a preceding coil to a leading end of a succeeding coil unwound from the unwinding device; at least one rolling mill for continuously rolling the coils, with the leading end of the coil and the tail end of the coil being joined, in one direction; a strip storage device, disposed between the joining device and the at least one rolling mill, for storing a strip in order to perform continuous rolling by the at least one rolling mill during joining of the preceding coil and the succeeding coil by the joining device; a strip cutting device, disposed on an exit side of the at least one rolling mill, for cutting the strip to a desired length; a winding device for winding the rolled strip; a transport device for withdrawing the coil from the winding device, and transporting the withdrawn coil to the unwinding device so that the coil is rolled a plurality of times until a strip thickness of the coil reaches a desired product strip thickness; and a rolling speed control device for controlling a rolling speed during joining of the tail end of the preceding coil to the leading end of the succeeding coil to a lower speed than a steady rolling speed, wherein the strip cutting device is disposed on the exit side of a rolling mill, among the at least one rolling mill, provided furthest downstream with respect to a transporting direction of the withdrawn coil.