An apparatus (1) for winding-up a metal strip (2) into a coil (3), includes a clamping pair (22) formed of a deflection roller (23) and a pressure roller (24) and located in front of the coil (3) in a material flow direction (10) so that the strip (2) is retained under tensional stress with respect to the coil (3) and is so bendable that the strip (2), which is provided with a corresponding pre-bend, is firmly wound into a coil (3). The apparatus further includes a first bending roller (35) pressable against the deflection roller (23), and arranged in front of the clamping pair (22) in the material flow direction (10), and a further roller (36) adjustable relative to the deflection roller (23) and arranged behind the clamping pair (22) in the material flow direction (10), with the pressure roller (24) and both bending rollers (35, 36) being so displaceable relative to the deflection roller (23) that an end region (45) of the strip (2) is additionally curved to form the pre-bend dependent on an end diameter (48) of the coil (3).

An unwinding device (1) for unwinding a strip (5) which had been wound to form a coil (3), in order for the unwound strip (5) to be hot-rolled. The unwinding device (1) has at least two bottom rollers (7) for supporting the coil (3) on the lower side of the coil, a detaching mechanism (9) for detaching a strip end (11) from the coil (3) on an unwinding side of the coil, and a downholder roller (13), (14) which is disposed at the coil (3) such that the downholder roller (13), (14) stabilizes the position of the coil (3) when the strip end (11) is being detached.

A wire barrel packing system that ensures wire is loaded evenly within the barrel and methods of using the same are disclosed herein. The wire barrel backing system may comprise a turntable on which the barrel is placed and a capstan configured to pull the wire from a feeder and feed the wire into the barrel. The turntable may be configured to rotate the barrel as wire is fed into the barrel. The capstan may be configured to raise or lower vertically with respect to the barrel as wire is fed into the barrel. The capstan may also be configured to move horizontally, both inwardly and outwardly, to cause the wire to be laid evenly within the barrel in a helical manner.

A wire barrel packing system that ensures wire is loaded evenly within the barrel and methods of using the same are disclosed herein. The wire barrel backing system may comprise a turntable on which the barrel is placed and a capstan configured to pull the wire from a feeder and feed the wire into the barrel. The turntable may be configured to rotate the barrel as wire is fed into the barrel. The capstan may be configured to raise or lower vertically with respect to the barrel as wire is fed into the barrel. The capstan may also be configured to move horizontally, both inwardly and outwardly, to cause the wire to be laid evenly within the barrel in a helical manner.

A method is for mitigating the effects of coil collapse on hot strip mill coils. A hot strip coil is removed from the mandrel/downcoiler and pre-sagged to create an initial sag by allowing gravity cause the coil to sag in a first specific direction for a first period of time. Then, without coil eye support to limit sagging, the direction of the sag caused by the force of gravity is modified to a direction perpendicular to the first specific direction and gravity is allowed to sag the coil for a second period of time. The hot strip coil being cooled enough by the end of the second period of time such that the rate of sagging of the hot strip coil has become negligible.

A method is for mitigating the effects of coil collapse on hot strip mill coils. A hot strip coil is removed from the mandrel/downcoiler and pre-sagged to create an initial sag by allowing gravity cause the coil to sag in a first specific direction for a first period of time. Then, without coil eye support to limit sagging, the direction of the sag caused by the force of gravity is modified to a direction perpendicular to the first specific direction and gravity is allowed to sag the coil for a second period of time. The hot strip coil being cooled enough by the end of the second period of time such that the rate of sagging of the hot strip coil has become negligible.

A coilbox is provided for winding a metal strip to form a coil and for unwinding the metal strip from the coil. In order to further develop a known coilbox in such a manner that the position of the coil is known at all times, in particular during its passive transfer from the winding station to the unwinding station, at least one additional roller rotatably mounted on the frame is provided.

A coilbox is provided for winding a metal strip to form a coil and for unwinding the metal strip from the coil. In order to further develop a known coilbox in such a manner that the position of the coil is known at all times, in particular during its passive transfer from the winding station to the unwinding station, at least one additional roller rotatably mounted on the frame is provided.