BLADE FOLDING MACHINE, TRANSVERSE FOLDING METHOD FOR SHEET USING BLADE FOLDING MACHINE, AND WEB PROCESSING METHOD AND LINE INCORPORATING BLADE FOLDING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a blade folding machine which can avoid such troubles including folding damage as likely according to the conventional technique. SOLUTION: A blade folding machine includes a folding roller couple 11 arranged sideways facing with respect to the sheet feeding direction and rotating in the counter-direction and blades 2 to be driven at approx. the same timing in such a condition that each sheet of paper 7 is inserted between the rollers 11, and therewith folds transversely the sheets 7 supplied separately by a transport device 10, wherein the speed of blade 2 and the cycle time are made changeable with respect to the speed of the sheet 7 because of varying size of the sheet to be folded 7, and it is possible to fold the sheet 7 during the run and without shock.