METHOD OF EDGE CUTTING OF PRINTER'S SHEETS IN SHEETING MACHINE AND SHEETING MACHINE WITH DEVICES FOR CROSS CUTTING OF PRINTER'S SHEET EDGES Russian patent published in 2003 - IPC

FIELD: paper industry, printing. SUBSTANCE: description of invention discloses sheeting machine. In process of operation of said machine cutting of sheets from all sides and dividing of sheets into parts are carried in real time. Printer's sheets in machine are cut over edges by means of cross-cutting devices. First cross-cutting device provides cutting of strip from rear edge of printer's sheet square to direction of transportation. Then printer's sheet is turned to make cut edge of printer's sheet move first. Then printer's sheet edge moving last is also cut square to direction of transportation by means of second cross-cutting device. Sheet is divided into some number of parts located close to each other by means of longitudinal cutting. Longitudinal cuts are checked by means of checking device. Sheet and/or parts of printer's sheet are transported by sheet gripping systems. Proposed method and sheeting machine provide checking both printing and register of cutting, cutting of sheets into parts and sorting out of sheet parts, by means of built in quality monitoring equipment. EFFECT: improved quality of sheet cutting and sorting out. 16 cl, 5 dwg