| 摘要 |
PURPOSE:To prevent the leaving of strain on a slit edge by arranging the centers of the upper and lower rotary cutters, offset in the direction of traveling of a band-plate and allowing the band-plate to be pressed and bite onto the cutter on the vertical line passing through the center of the rotary cutter on the upstream side in the traveling direction. CONSTITUTION:An upper rotary cutter 7 is arranged, offset by a distance S to the slitter exit side with respect to a lower rotary cutter 7', and a band-plate 1 is fed from the left into the rotary cutter 7', applying the pressurizing force of a pressurizing cylinder 11 on the points a-a on the vertical line passing through the center O' of the lower rotary cutter 7'. With such constitution, the variation of height of the cut stripe 2A is not varied between the position a-a and the position of the vertical line passing through the center O' of revolution of the lower rotary cutter, and since the bending moment is offset by the pressurizing force 11, the leaving of strain on the slitter edge can be prevented. The stripe 2B is used for the use where a slit strain is ignored. With such constitution, the generation of slit strain can be prevented. |
