▎ 摘　　要

NOVELTY - The utility model claims a graphene coating substrate dirt cleaning bracket, comprising a unreeling device; winding device; the first end of the length of the base material is wound on the unreeling shaft of the unreeling device; the second end of the length of the base material is wound on the winding rewinding of the device; it further comprises a middle tension roller; the middle tension roller is supported on the base material between the unreeling shaft and the winding shaft; and the height of the middle tension roller is higher than the unreeling device; so that the base material released by the unwinding shaft can be tensioned and moved from the bottom up. The utility model is set with scroll; the middle tension roller and the winding shaft form a tension transmission to the base material; and the base material forms a moving surface from bottom to top; at this time, the operating personnel can effectively clean the cleaning surface in front of the base material through the air cavity; it can obviously improve the cleaning efficiency and cleaning effect of the dirt on the base material; so it is good for the cycle utilization period of the base material; and it is good for improving the quality of the subsequent coating film product.