The invention discloses a screw type injection molding device. The device comprises an
injection molding machine shell, wherein a feeding hopper is arranged at the upper end of the
injection molding machine shell; an injection molding screw rod is arranged inside the
injection molding machine shell, a screw rod edge is arranged at the upper end of the injection molding screw rod, the right end ofthe injection molding screw rod is connected to a driving motor, and the left end of the injection molding screw rod is connected to a screw rod head; and an injection molding
nozzle is arranged at the left end of the injection
molding machine shell, wedge grooves are formed in the inner wall of the injection
molding machine shell, and ultrasonic cleaning structures are installed in the wedge grooves. According to the screw type injection molding device, the ultrasonic cleaning mechanisms are arranged on the injection
molding machine shell, ultrasonic
waves are radiated into the interior of the injection molding
machine shell by utilizing the
radiation surfaces on the ultrasonic cleaning mechanisms, the long injection screw rod is cleaned through the plurality of ultrasonic cleaning mechanisms, and under the action of the ultrasonic
waves, the rotating injection molding screw rod utilizes the
cavitation effect, the acceleration effect and the direct inflow effect of the ultrasonic
waves in the liquid to perform direct action and
indirect action on liquid and
dirt, so that a
dirt layer is dispersed, emulsified and stripped to achieve the cleaning purpose, and the device is worthy ofpopularization.