Abstract: A conveying device includes a plurality of conveying rollers supported in parallel at predetermined intervals, and conveys a workpiece to a heat-retaining/heating furnace from a rolling mill by the conveying rollers. The conveying device includes an impact prediction data collecting unit and a control unit. The impact prediction data collecting unit acquires data on the upstream of the heat-retaining/heating furnace. The data is used to predict the magnitude of an impact applied to rollers in the furnace, which are positioned in the heat-retaining/heating furnace, of the conveying rollers by the workpiece. The control unit predicts the magnitude of an impact from the data, which is acquired by the impact prediction data collecting unit, and adjusts the conveying speed of the workpiece in the heat-retaining/heating furnace according to the magnitude of the impact.

Abstract: A rolling apparatus is capable of rolling a metal ring to an accurate circumferential length and preventing the metal ring from dropping off. The rolling apparatus includes a metal ring support assembly having tension rollers 2a, 2b for supporting a metal ring W, a rolling roller 5 for rolling the metal ring W, a rolling assembly for pressing the rolling roller 5 against the metal ring W, a tension applying assembly having a tension cylinder 23 engaging tension roller support members 8, 10, 25, on which one of the tension rollers 2b is rotatably supported, for displacing the tension roller 2b to apply tension to the metal ring W, and a rolling processing completing assembly 27 for detecting a completion of rolling of the metal ring W and inactivating the rolling assembly and the tension applying assembly. The rolling assembly has a first resilient member 18 interposed between the rolling cylinder 14 and its piston rod 15.

Abstract: A method and an arrangement for operating a rotating starting shear operating in a start-stop operation on rolling stock travelling at different speeds in wire mills, light-section mills, medium plate mills and billet mills, wherein the shear, whose gear system is connected through a coupling to a drive motor, is accelerated from the position of rest to approximately rolling speed and, after the cut has been carried out, is stopped again. A gear machine is arranged between the gear unit of the shear and the drive motor, wherein torsion-proof couplings are arranged between the gear unit or the shear and the gear mechanism and between the gear mechanism and the drive motor.