Steel channel cutting off device

The utility model discloses a steel channel cutting off device which comprises a rack and an upper cutter rest arranged on the upper portion of the rack. A feeding port is formed in the rack, an upper shear blade is fixedly connected to the lower end of the upper cutter rest, the rack is fixedly connected through upper guide rail blocks and lower guide rail blocks, the upper guide rail blocks and the lower guide rail blocks are arranged on the two sides of the rack, a left cutter apron and a right cutter apron are arranged between the upper guide rail blocks and the lower guide rail blocks, and a right cutter apron adjusting mechanism is movably connected to one side of the right cutter apron. The steel channel cutting off device has the advantages that the application range of the steel channel cutting off device is enlarged through the adjustable left cutter apron and the adjustable right cutter apron, the steel channel cutting off device can be suitable for steel channels of more types, the up-and-down moving stability of the upper shear blade in the steel channels is ensured through the upper guide rail blocks and the lower guide rail blocks, under the action of a press, side shear blades and a lower shear blade are matched with the upper shear blade so that the cutting off work can be better completed, the integrity of the cut off faces of the steel channels is ensured, the cross section is clean without burrs, secondary processing and cleaning are not needed, the labor intensity of workers is lowered, the cutting speed is high, and the production efficiency is improved.