Wet mixing granulator used for medicine production

The invention discloses a wet mixing granulator used for medicine production. The wet mixing granulator comprises a base, a granulation mechanism, a material mixing mechanism, a pulping mechanism anda control mechanism are arranged on the base, and a feeding inlet of the granulation mechanism is connected with a discharging outlet of the material mixing mechanism through a first discharging mechanism; the first discharging mechanism comprises a discharging pipeline and a first material delivering pipe, the inside of the discharging pipeline is a discharging cavity chamber, and a piston columnis slidably connected with the inside of the discharging cavity chamber; a limit rod is fixedly arranged inside the discharging cavity chamber, a limit cavity cooperating with the limit rod is axially formed in the piston column, and the limit rod is inserted in the piston column; balls capable of freely rotating are embedded in the limit rod, limit sliding grooves which are distributed spirallyand cooperate with the ball