Forage blank device for aquaculture

The utility model discloses a forage blank device for aquaculture, including the device casing, the inner chamber upper end fixedly connected with stopper of device casing, open the lower part of stopper has the circular arc spout, the inside of circular arc spout is equipped with first ball, the upper end at cutting blade is inlayed to the lower part of first ball, cutting blade's lower extreme fixedly connected with drive gear, drive gear's the lower extreme and the toothed bar mesh of sliding block upper end, open at the middle part of baffle has the sword groove, the lower part spout of sliding block is pegged graft on the slide rail, the lower extreme fixed connection of slide rail is in the upper end of backup pad, the first magnetic stripe of upper end fixedly connected with of backup pad. This forage blank device for aquaculture, structure through being equipped with first magnetic stripe and second magnetic stripe has reduced the wearing and tearing between sliding block and the slide rail, through t