Leveling machine with multiple rollers

摘要

A machine for leveling a strip of material contains a lower stationary back plate from which extends vertical beams located on either side of a longitudinal axis. A lower stationary leveling chassis and an upper leveling chassis are provided. Each chassis contains spaced apart rollers. An upper stationary back plate is rigidly secured to the upper end of each beam, and a moving coupling device couples the upper leveling chassis to the upper back plate. A device allows a vertical translational movement of the upper leveling chassis in relation to the upper stationary back plate between a rest position where the rollers of the upper leveling chassis are moved away from rollers of the lower leveling chassis and a leveling position where rollers of the upper leveling chassis are moved towards rollers of the lower leveling chassis and the strip is forced to travel along an undulating path.

主权项

1. A leveling machine for leveling a strip of material, the leveling machine comprising:
a plurality of vertical beams each having an upper extremity; a lower fixed back plate from which extends said plurality of vertical beams, said vertical beams disposed on either side of a longitudinal axis of movement of the strip of material; leveling cassettes including:
a lower fixed leveling cassette, during operation of the leveling machine, said lower fixed leveling cassette bearing against said lower fixed back plate;an upper leveling cassette, each of said lower and upper leveling cassettes having bearings and a plurality of rollers spaced out and mounted rotatingly in said bearings on axes perpendicular to the longitudinal axis of movement of the strip of material; an upper fixed back plate rigidly connected to said vertical beams and rigidly attached to said upper extremity of each of said vertical beams; a movable coupling device for coupling said upper leveling cassette to said upper fixed back plate enabling movement of said upper leveling cassette; and a moving device for moving said upper leveling cassette in a vertical translation in relation to said upper fixed back plate between a resting position in which said rollers of said upper leveling cassette are not close to said rollers of said lower fixed leveling cassette and a leveling position in which said rollers of said upper leveling cassette are close to said rollers of said lower fixed leveling cassette to cause the strip of material to follow an undulating route, said moving device being able to offset a bending of said upper leveling cassette caused by a separation stress attributable to a passage of the strip of material to be leveled.