Reverse rotary rollers bend sheets within existing conveyance paths, eliminating dedicated stoppers and reducing apparatus complexity.
Transverse cutter oscillation distributes folded stretch film edges laterally, preventing thick accumulation and crease formation.
A folding apparatus slide portion with a friction coefficient of 0.4 or less prevents crotch portion twisting by allowing smooth web sliding.
A swingable sheet holding member uses link joints to adapt its shape, resolving alignment issues caused by thick folded parts in high-volume stacking.