Kmd520T 4-comb+4-comb+1 blade grid knife hybrid folding machine, consisting of 4 combs, can perform 4 organ folds for the first fold; The comb tail consists of a second accordion fold made up of four combs, which can be folded four times in a straight or horizontal direction with the first fold. The third fold can complete a cross fold (1 cut). The first fold can be combined with the third fold to form four organ folds and one cross fold (one cut). Folding in half, double folding, wrapping and folding again, indentation, injection line hole, etc. are all acceptable.