Adjustable device for metal rolling

The utility model discloses an adjustable device for metal calendaring, which relates to the field of calendaring and comprises a fixed support, first air cylinders fixedly connected to two sides of the fixed support, limiting mechanisms fixedly connected to the bottom ends of the first air cylinders, a lower calendaring roller arranged below the fixed support, and a support and a rib plate rotationally connected to two sides of the lower calendaring roller through rotating rods respectively. The limiting mechanism comprises a limiting block, the side face of the limiting block is rotationally connected with an upper calendering roller through a rotating rod, the top end of the supporting seat and the top end of the rib plate are fixedly connected with vertical rods, and the limiting mechanism is matched with a second air cylinder, so that the distance between the supporting seat and the rib plate can be adjusted to change the thickness of a metal plate needing to be calendered; and moreover, the calendering