Bi -directional cutting device can reciprocate at a high speed

The utility model belongs to the technical field of mechanical equipment, especially, relate to a bi -directional cutting device can reciprocate at a high speed, including cutting mechanism, up -and -down motion mechanism, base, frame, it includes cut -off knife, servo motor to cut the mechanism, up -and -down motion mechanism includes the cut -off knife lower cylinder on linear slide rail, the cut -off knife that leads from top to bottom. The utility model discloses a positive reverse rotation reciprocating motion of up -and -down motion mechanism, cut -off knife realizes the level and the up -and -down motion of cut -off knife not using cut -off knife pendulum -arm mechanism, avoids using cut -off knife pendulum -arm mechanism, cause to cut the precision not enough, have the condition of deviation to take place.