Chute stitching needle aligning device of stapler

A chute stitching needle aligning device of a stapler comprises a base. A sliding rail is arranged on a bottom plate of the base. A sliding block is arranged in an inner cavity of the base and slideson the sliding rail. The sliding block is a rod body, two ends of an upper side of the rod body are provided with baffle blocks, and two circular sliding grooves are arranged in the bottom of the rodbody. Two rectangular holes are arranged in a left end of a top plate of the base. A plurality of non-equidistant openings are arranged in long edges of the rectangular holes. The two baffle blocks extend out of the openings of the two rectangular holes. A handle is arranged on one side of the sliding block located in the inner cavity of the base. The rod body of the handle is located in a slidinggroove in a side plate of the base. An outer end of the handle is located outside the sliding groove. A user pulls the handle to move along the sliding groove, the non-equidistant openings and a shape of the sliding block are