Corrugated board fixed-length cutting mechanism

The utility model discloses a corrugated board fixed-length cutting mechanism which comprises a bottom frame, a sliding rail is arranged above the bottom frame, and a horizontally-arranged feeding plate is installed on the sliding rail in a sliding mode. The conveying air cylinder is arranged on the bottom frame and used for driving the feeding plate to horizontally move on the sliding rails; a feeding cylinder for driving the push plate to move is arranged on the feeding plate; the limiting baffle is used for positioning the slitting length of the corrugated board; a horizontally-arranged pressing plate is arranged in the supporting frame, and a clamping air cylinder for driving the pressing plate to move up and down is arranged above the supporting frame; and the fretsaw machine is used for slitting the paperboards. The corrugated board slitting device has the beneficial effects that the structural design that mechanical conveying is matched with multi-directional positioning is adopted, the positioning req