Classification of cross-cutting machines: Cross-cutting machines are one of the important stand-alone machines for corrugated board production lines. The cross-cutting machine has different mechanical control modes, and is divided into a mechanical cross-cutting machine and a computer-controlled cross-cutting machine. The computer cross-cutting machine is controlled by the industrial control computer. According to the set length, the cutter shaft is controlled to cut the cardboard, and the precision transmission of the mechanical part can control the cutting error within ±1mm. The computer controlled cross cutting machine has a spiral cutter cross cutter and a straight knife cross cutter. The spiral cutter cross-cutting machine is more suitable for high-speed cutting of thick cardboard, and the cutting paper is stable and the blade has a long service life.