Method and machine for cutting paper logs

摘要

Machine for cutting paper logs, including a support for supporting one or more logs (3) disposed side by side, device for advancing the logs (3) on the support, device for the transverse cutting of the logs (3) and device for blocking logs (3) during their cutting. The cutting device includes an annular band blade (4) having a bevel (400, 401) on both its edges, provided in correspondence to a cutting station (T) in which the logs (3) are cut and connected to corresponding guiding and actuating structure, the blade (4) featuring a portion (40) defining a corresponding cutting plane which is oriented orthogonally with respect to the longitudinal axes of logs (3), the blade being provided with a sharpening device (100) continuously acting on both its bevels (400,401). The machine includes structure for the relative motion of logs (3) with respect to the blade (4) along the cutting plane. The blade (4) acts on one log (3) at a time.

主权项

1. A method for cutting paper logs, comprising:
providing a support means for supporting a plurality of paper logs disposed side by side, said support means comprising a platform having a plurality of longitudinal channels onto which one or more of the paper logs are horizontally positioned, side by side; providing a means for advancing the logs on said support means such that said logs slide along said longitudinal channels; providing a means for transverse cutting of the logs; providing a means for blocking the logs during cutting of the logs, said cutting means comprising an annular two bevel band blade, said band blade being provided in correspondence to a cutting station for cutting the logs and said band blade being connected to corresponding guiding and actuating means, said band blade having a portion defining a corresponding cutting plane which is oriented orthogonally with respect to said support means, said band blade being provided with a sharpening device continuously acting on each bevel; and providing a means for relative motion of said support means with respect to said band blade along said cutting plane, wherein the support means supports the logs such that the longitudinal axes of the logs lie on a same lying plane, the band blade acting on one log at a time and said means for relative motion moving said support means bidirectionally with respect to said cutting plane along a direction parallel to said lying plane to execute a first cutting run and said support means executes a second cutting run for cutting the logs after said first cutting run, said first cutting run and said second cutting run being opposite to each other.