Sectional material sawing machine

The invention discloses a sectional material sawing machine. The sectional material sawing machine comprises a rack, a machining platform for longitudinal operation of a sectional material is arrangedon the rack, a charging and feeding device is arranged on the front portion of the rack, a feeding and discharging device is arranged on the rear portion of the rack, and a sliding frame driven by afirst power machine to vertically slide is connected to the rack; the sliding frame is provided with two cutting bases which are arranged in an up-down spaced mode, cutting blades which are driven bya sawing motor and have a set included angle with the operation direction of the sectional material are correspondingly connected to the two cutting bases, the projections of the two cutting blades are arranged in a vertical state in an overlooking state, and the machining platform is provided with cutting grooves allowing the cutting blades to penetrate through; and the rack is provided with a positioning and pressing mech