DEVICE FOR PATTERN CUTTING OF MATERIALS LAID IN MANY LAYERS Russian patent published in 1994 - IPC

FIELD: pattern cutting. SUBSTANCE: device allows fixation of multilayer fabric simultaneously with transportation by introduction of three-cycle continuous sucking of fabric layers to conveyor chambers. In so doing, the fabric is turned over and placed on warp. The force of cohesion and fixation of multilayer fabric to conveyor chamber surface is regulated depending on fabric closeness of weave by varying the cross-sectional area of each hole of chamber from 725 to 1400 mm. During two first cycles the fabric is sucked and turned over simultaneously that allows control for cutting quality of lower layer. The third cycle of conveyor operation provide for laying and fixation of cut pieces of fabric on warp in pack under material own gravitation forces. EFFECT: higher efficiency. 10 dwg