It is provided with worm - gear box regulation to have a more accurate depth of paper press . the blade part is driven by independent gear and adjusted by ratchet wrench . it is also equipped with ruler to shorten the time required for blade adjustment 采用蜗轮箱调节,使压线深度更加准确,刀头部分使用单独齿轮传动,利用棘轮板手调动,并带有长尺,使调刀时间缩短。