Conveyorized sheet cutter

Abstract

Abstract An improved conveyorized sheet cutter is herein described for cutting a plurality of stacked sheets of thermoplastic material, and the like. A first conveyor is provided for moving stacked sheets of material along a first conveyorized path and an elongated tensioning block is disposed beneath the sheets of thermoplastic material to urge upwardly against the moving material, so as to tension the material. The tensioning block may be formed with a channel for receiving a razor-blade which may be mounted on a second conveyor disposed for movement along the channel, for cutting sheet material held taut across the channel. The first and second conveyor systems are driven through a common drive shaft so as to be mechanically synchronized. As a result thereof, the angle of cutting bias necessary to cut squared off sheets of moving material is constant, regardless of the speed of sheet material travel. In one form of the invention, a plurality of cords may be provided to extend outwardly from leading and trailing edges of the tensioning block for the purpose of supporting the moving sheet material before and immediately after the razor-blade has cut the sheet. The plurality of cords may take the form of a continuous loop having a resilient member incorporated therein for the purpose of maintaining tension in each of the plurality of cords.

Inventors

• 👤 P Allen

Bibliographic Details