Anti-winding structure of steam box of boil-off machine

The utility model relates to an anti-winding structure of a steam box of a boil-off machine, and comprises a box body (1), wherein three cloth guide rolls (2) and a cloth falling roll (3) are arranged in the box body. The anti-winding structure is characterized in that that the cloth falling roll (3) adopts a sexangular roll. In the anti-winding structure of a steam box of a boil-off machine provided by the utility model, the cloth falling roll adopts the sexangular roll to substitute a smooth flat roll, fabrics can be prevented from being wound on the cloth falling roll during operation, the normal operation of equipment is guaranteed, the productivity is high, and the manufacturing cost is reduced.