Roll shaft structure and production device of coiled material for windowing food packaging

The utility model provides a roll shaft structure and a production device of a coiled material for windowing food packaging, the roll shaft structure comprises a shaft body and an unwinding roll mounted on the shaft body, a rotating base is movably mounted on the shaft body, and the unwinding roll is rotatably mounted on the rotating base; the shaft body is further provided with an adjusting device so that the rotating bases can move in the length direction of the shaft body, the moving directions of the rotating bases are opposite, efficient production of the coiled material for windowing food packaging can be achieved through the structure, continuous production is achieved, and the production efficiency is improved. And the windowing size can be adjusted according to the requirements of different products through the roll shaft structure, production is facilitated, and efficiency is improved. 本公开提供一种辊轴结构及开窗食品包装用卷材的生产装置，包括轴体以及安装于所述轴体上的放卷辊，所述轴体上可移动地安装有转动底座，所述放卷辊可转动地安装于所述转动底座上；所述轴体还安装有调节装置，以使所述转动底座可沿于所述轴体的长度方