Brake frame for tensioning metal strips - includes lower than atmospheric pressure chamber at entrance to area where strip is tensioned between endless belts

摘要

Metal strip which is to be wound on a coiler is braked, partic. in a slitting unit where part coils are wound under tension, by an arrangement of an endless braking belt (12) which passes over rollers (8,10), the strip (3) passing between this belt and a further belt (11) with rollers (7,9). One or several of the rollers are connected to a braking motor-generator. A vacuum chamber (20) is positioned at the strip entry side and contains four elastic sealing rolls (22 a-o), so that the belts are pressed against the strip by external atmos. pressure. ADVANTAGE - No damage to strip surface, low cost.