Cold-bending half-cutting-off device for sectional material

The utility model discloses a cold-bending half-cutting-off device for a sectional material, which comprises a sectional material positioning device for fixing the sectional material so as to be convenient to cut the sectional material. Two sides of the sectional material positioning device are respectively provided with a sectional material exscinding device; the sectional material exscinding devices comprise exscinding platforms; the exscinding platforms are provided with electric saw mounting seats in a sliding way; the electric saw mounting seats are provided with electric saws; two saw bits of the electric saws extend to the sectional material from two sides of the sectional material; the two saw bits are aligned; the electric saw mounting seats are connected with electric saw transverse feeding power devices; and the exscinding platforms are provided with limiting devices for limiting the travels of the electric saws. After the sectional material is fixed by the sectional material positioning device, th