Eccentric grinding device for inner wall of clean bottle

An eccentric grinding device for an inner wall of a clean bottle solves the technical problem that the existing grinding device for the inner wall of the clean bottle is large in structure and high in cost, wastes time and energy during clamping of a bottle body, and is poor in grinding effect of two ends of the bottle body or can not grind the two ends of the bottle body. The eccentric grinding device structurally comprises an installing support, a rotating supporting assembly arranged on the clean bottle on the installing support and a grinding driving assembly. The rotating supporting assembly comprises two groups of roller type supporting frames arranged in longitudinal direction along the installing support and eccentric clamping locating sleeves arranged on the two groups of roller type supporting frames respectively. The head end and the tail end of the clean bottle containing a grinding material are located in the two groups of eccentric clamping locating sleeves respectively. A rotating center of the