Patent ID: 8167136
Filing Date: 2012-05-01
Classification: B26D

Abstract:
1. A device for discarding trims formed by cutting machines during the cutting of paper logs, the device comprising: an advancing plane on which paper rolls and trims advance along a given direction, wherein the trims can fall through a discontinuity provided on said advancing plane, said advancing plane being formed by a first extendible conveyor and a second extendible conveyor, each of said conveyors being connected with respective extension and retraction means, said discontinuity on the advancing plane being realized or eliminated depending on the extended or not extended configuration of said conveyors, wherein said conveyors comprise elastic belts ring-closed on respective pulleys supported by horizontal shafts which are partly fixed shafts and partly mobile shafts, the mobile shafts being connected to respective actuators which determine a horizontal bidirectional movement of said mobile shafts, said horizontal bidirectional movement being parallel to said advancing direction of the rolls and trims.