Patent ID: 8910553
Filing Date: 2014-12-16
Classification: B26D,Y10T

Abstract:
1. A machine for cutting paper logs, comprising: 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 the paper logs are horizontally positioned, side by side; a means for advancing the logs on said support means such that said logs slide along said longitudinal channels; a means for the transverse cutting of the logs; a means for blocking logs during cutting of the logs, said means for the transverse cutting of the logs comprising an annular two bevel band blade, said band blade being provided in correspondence to a cutting station for cutting the logs and connected to corresponding guiding and actuating means, said blade having a portion defining a corresponding cutting plane which is oriented orthogonally with respect to said support means, said blade being provided with a sharpening device continuously acting on each bevel; and a means for relative motion of said support means with respect to said 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 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, said platform including a superstructure with two transverse bars between which there is an opening capable of accommodating the blade as the support means is moved through said first cutting run and said second cutting run, and said superstructure further including a plurality of pairs of pressers connected to corresponding vertical-axis actuators, said pairs of pressers being in a number corresponding to that of the logs, with a pair of pressers for each log, each pair of pressers comprising two elements positioned on opposite sides with respect to said opening such that one of said elements is located on a side opposite another element with respect to the action plane of the blade, one of said elements being positioned upstream of said action plane of said blade and another of said elements being located downstream of the action plane of said blade, each pair of pressers being provided for each of the logs in correspondence to the cutting station.