Vorrichtung zum Walzen von Metallen

摘要

1,214,905. Rolling. SCHLOEMANN A.G. 11 March, 1968 [11 March, 1967], No. 11694/68. Heading B3M. A rolling mill incorporates four rolls which act in a common plane on the adjacent faces of a moving workpiece 1, each roll being reciprocated substantially radially of the workpiece by an eccentric drive. Several sets of such rolls can act in tandem. Each roll can be carried in an arm 6, Fig. 1, which is pivoted to a block 17 movable radially in a guide 18, and which is reciprocated by a rotating eccentric 14. Alternatively, Fig. 2, the rolls 3, 31, 311 and 3111 of a set can be carried on ball or roller bearings and driven by eccentric shafts 19. The rolls can be grooved if desired, and a braking action can be applied to the rolls during rolling by the use of eddy currents or a suitable bearing material. The workpiece can be fed by drive rollers upstream and downstream of the work rolls. Those downstream can be non-uniformly driven by an electric motor or through a slipping clutch. A withdrawal device which is spring loaded and supported for sliding movement in the rolling direction may be employed, and jaws may be used to prevent reverse movement of the workpiece as it is fed towards the rolls. The workpiece is fed to the rolls by rollers, or by a revolving slot chain and is removed by an intermittently operating withdrawal device. The device may comprise rollers driven non- uniformly by an electric motor or slipping clutch, and may be supported in a unit for sliding movement in the rolling direction. Jaws may be employed to prevent reverse movement of the workpiece as it is fed to the work rolls.