Armature opening and closing mechanism for paper transferring mechanism swinging downward

The invention discloses an armature opening and closing mechanism for a paper transferring mechanism swinging downward. The armature opening and closing mechanism for the paper transferring mechanism swinging downward comprises a paper transferring hand, a driving mechanism, a driven mechanism and a stop motion mechanism. The paper transferring hand comprises an engaging shaft and an opening and closing armature ball connected with a driving end of the engaging shaft. A driving gear of the driving mechanism and a paper transferring armature control cam are fixedly installed on a driving shaft. A pair of swing rods of the driven mechanism is fixedly installed on a swing arm shaft, and end heads of the pair of swing rods are respectively arranged on periphery surfaces of the main curve and the conjugate curve of the paper transferring armature control cam in fit mode. A swing rod cam comprises a main body and a tail rod portion, wherein the swing rod cam is fixedly installed on an installing shaft, and a curved