Spiral feeding device used for food machine

The invention discloses a spiral feeding device used for a food machine, and belongs to the technical field of feeding devices. The spiral feeding device comprises a feeding machine body, the feedingmachine body comprises an outer shell, V-shaped blocks and an inner shell, an interlayer is formed between the outer shell and the inner shell, the V-shaped blocks are welded on the inner side wall ofthe interlayer, and a screw rod is mounted on the inner side wall of the feeding machine body. A spiral blade is welded to the surface of the screw rod, the power input end of the screw rod is electrically connected with the power output end of a motor through a transmission rod, a coupler and a transmission mechanism, and one end of the outer side wall of the feeding machine body is detachably connected with hoops through screw holes, bolts and nuts. Mounting lugs are welded to the bottoms of the hoops, and the hoops are rotationally connected with the top of a vertical rod through the mounting lugs, the screw holes,