Crossing frame top glue hanging roller

The utility model relates to the technical field of spanning frames, in particular to a spanning frame top glue hanging roller which comprises a spanning frame body and a support, the middle of the top end of the spanning frame body is fixedly connected with the support, the two sides of the spanning frame body are fixedly connected with a plurality of fasteners, and the top end of the support is fixedly connected with a supporting seat. The middle of the supporting base is rotationally connected with the circular blocks, and the inner ends of the circular blocks on the two sides are fixedly connected with the rollers. A user presses pressing rods on the two sides inwards, the pressing rods on the two sides drive supporting rods on the two sides to move towards the outside of a glue hanging roller correspondingly, the supporting rods on the two sides slide along guide rods correspondingly, meanwhile, springs are driven to be compressed, and the supporting rods on the two sides drive a plurality of first limit