Adjustable steel welding roller carrier

The utility model discloses an adjustable steel welding roller carrier which comprises an adjustable base plate and two sets of supporting rollers movably installed on the adjustable base plate, the adjustable base plate is of a double-layer structure and is provided with a base plate body and two sets of adjusting plates from bottom to top, and the two sets of adjusting plates are arranged on the surface of the base plate body in a sliding mode. A plurality of storage grooves are evenly formed in the middle of the adjusting plate, four pulleys are evenly installed at the corners of the storage grooves, auxiliary supporting plates are arranged in the storage grooves, and rotating rods are inserted into one ends of the auxiliary supporting plates in a penetrating mode. The movable adjusting base plate is designed at the bottom of the roller carrier, the length of the base plate can be adjusted according to needs, the positions of the supporting rollers above the base plate can be synchronously adjusted, the su