Patent ID: 6080093
Filing Date: 2000-06-27
Classification: B31B,B65D,Y10S

Abstract:
A machine for forming open mesh wicket-top bags from a sheet of cross-laminated synthetic resin fabric, having an upper and lower surface of warp and weft fibers, with one layer of said fibers forming the outermost portion of one surface and running along the web and the other layer of said fibers forming the outermost portion of the other surface and running transverse of the web, the machine comprising:a folding station receiving a longitudinally moving web formed from a sheet of the cross-laminate synthetic resin fabric, said folding station folding the side edges of the web toward each other in an overlapping center position above a lower central portion to produce a folded, tubular web of the fabric, with fibers in one cross-laminated surface being placed in direct contact with transverse fibers in the other cross-laminated surface;a sealing station receiving the folded, tubular web from said folding station, said sealing station sealing together the contacting cross-laminated fibers of the overlapping side edge portions of the folded side edge layers above said lower central portion of said tubular web as it moves in a longitudinal direction therethrough;a punch and slitter station, said punch and slitter station punching laterally spaced holes and cutting web slits in said tubular web at selected positions along its length;a wicket forming station, said wicket forming station opening said tubular web and slitting an upper portion of said tubular web to form a wicket-top adjacent said spaced holes and web slots; anda cutting station, said cutting station cutting said web transversely across its width at selected positions for forming the wicket-top bag.