Wet breaking and opening roller

The utility model relates to a wet breaking and opening roller, the wet breaking and opening roller is characterized in that the wet breaking and opening roller comprises a roll shaft (1), a roller (2) is arranged on the roll shaft (1) in sleeved mode, needle cluster (3) is arranged in the periphery of the roller (2), a roller sleeve (4) is sleeved outside the roller (2), two ends of the roll shaft (1) extends out from the roller sleeve (4), an upper baffle and a lower baffle (5) are respectively arranged between two ends of the roller (2) and the inner wall of the roller sleeve (4), the baffles (5) both extend to an identical direction which is opposite to the rotating direction of the roller. Two obliquely arranged baffles are disposed at the two ends of the roller according to the wet breaking and opening roller, the baffles both extend to an identical direction which is opposite to the direction of the roller rotation, so that cottons can be retained by the needle cluster, and prevented from being threw a