Importance

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Abstract

In a machine for strapping a sheet metal coil, two rollers support such a coil with its axis extending transversely. A carriage mounted upon a fixed base is longitudinally movable toward and away from the rollers. A strapping head cradle mounted upon the carriage is movable with the carriage and is pivotable about a transverse axis. Two strap-guiding arms mounted upon the cradle, extend forwardly, and are movable with the cradle, pivotable with the cradle, and pivotable on the cradle between a closed position defining a closed path for a strap and an opened position enabling the strap-guiding arms to clear the supported coil when the cradle is moved with the carriage. A coil-sensing arm extending over the strap-guiding arms is mounted upon the carriage, movable with the carriage, and pivotable about a transverse axis. Fluid-powered mechanisms coact with the cradle and with the coil-sensing arm, by means of a pivotal connection defining a transverse axis, for pivoting the cradle less rapidly and the coil-sensing arm simultaneously but more rapidly.

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First Claim