GB423664A - Apparatus for rolling metal sheets, strip and similar flat sections - Google Patents

Abstract

423,664. Rolling. SEDZIMIR, T., 4, Rozana, Katowice, Poland. July 25, 1933, No. 20989. Convention date, July 27, 1932. [Class 83 (iv)] A reducing-roll 2 of a rolling - mill is supported along its length against deflection by a procession of balls, rollers, needles, &c., either joined together like an endless chain, Fig. 3, or as separate units as in Fig. 4, with or without feed screws. These chains transmit the pressure to cross beams 5 through an intermediate hard steel liner adjustable by wedge 12 to set the pass. The top and bottom cross beams may be integral with the end frame to form a unit rigid structure. The metal strip 8 to be rolled may be endless, and is then pulled through the rolls by a friction pulley 27, the friction being increased by the hand screw or otherwise adjusted pressure of small peripheral rollers 6, 7, driven or idle. The pulley 27 and /or the rollers 6 may be faced with friction-increasing material, e.g. rubber or leather. The pulley 27 is driven by its internal teeth gearing with a wheel 26 driven by gears 25, 24, 16, 15 from the mill motor 14. The pulley tension on the strip may be varied by altering the gearing ratio driving the pulley 27 in relation to the roll speed. A slipping coupling may be introduced into this drive. The rolls 1, 2 are also driven from the motor 14, the top roll 1 being driven through a chain 17 and the bottom roll 2 through gearing 15, 16.