The invention discloses a vacuum roll kneading
machine for
food processing. The vacuum roll kneading
machine comprises a frame, a
vacuum pump and a roll kneading drum. The
vacuum pump is communicated with the roll kneading drum, a rotating shaft in a hollow structure is rotatably connected in the roll kneading drum, a plurality of slide barrels are arranged on the rotating shaft in the roll kneading drum, each roll kneading knife is provided with a plurality of through holes, the slide barrels are communicated with the through holes, and each roll kneading knife is slidably connected in the corresponding slide
barrel. The rotating shaft outside the roll kneading drum is provided with a vent hole, an air cylinder is fixed to the rotating shaft and communicated with the vent hole, and a
piston is arranged in the air cylinder and fixedly connected with a
piston rod. A motor is arranged on the frame, a first gear meshed with a second gear is fixedly connected with an output shaft of the motor, the rotating shaft is fixedly connected to the second gear, and an eccentric gear is fixedly connected to the rotating shaft and abutted against the
piston rod. Due to the hollow structure of the rotating shaft, the roll kneading knives continuously reciprocate to slide in the slide barrels in a
continuous rotation process of the rotating shaft, a meat roll kneading effect is enhanced, and roll kneading efficiency is improved.