Combination hole punching and book binding machine

A combined punching bookbinding machine comprising a worktable and an electric motor disposed fixedly thereon,

• wherein
• a) a left changeover panel and a right changeover panel are symmetrically disposed on said worktable, an axis of said left changeover panel and an axis of said right changeover panel is connected with a spindle, each end of said spindle being connected with said worktable via a spindle flange;
• a slotted disc and a rocker arm are disposed at the outside of said left changeover panel, and a transposition gear disc is disposed at the outside of said right changeover panel;
• said slotted disc comprises a gap at the edge and a circumferential changeover slot at the side facing said left changeover panel;
• the center of said slotted disc is connected fixedly with said spindle;
• a punching slot is disposed on said rocker arm at the side facing said left changeover panel and comprises two ports harmonized with two ports of said changeover slot;
• an end of said rocker arm is connected with said worktable via a rocker arm flange, and the other end is connected with an end of a push-pull rod of a transmission arm;
• the other end of said push-pull rod is connected flexibly with an end of a rocker, the other end of said rocker being fixed with said worktable by a hinge connection;
• a transmission slot is disposed at a side of said rocker and harmonizes with a pin of a curved rod, said curved rod being connected with a pto shaft of said electric motor;
• b) between 3 and 6 groups of press knife assembly are disposed between said left changeover panel and said right changeover panel uniformly with the axis of said left changeover panel and the axis of said right changeover panel as center;
• a locating slot and a slider guide slot are disposed on said left changeover panel and said right changeover panel, respectively;
• a slider of said press knife assembly harmonizes with said slider guide slot, and a bottom locating slot is parallel to said worktable;
• c) said press knife assembly comprises a knife-pressing axis, each end of said knife-pressing axis comprising a fixed cam harmonizing with said slider fixed on both ends of a knife-pressing frame;
• a knife-withdrawing frame is fixed at the outside of said knife-pressing frame;
• a knife-pressing slot is disposed on said knife-pressing frame, and a knife-withdrawing slot is disposed on said knife-withdrawing frame;
• a knife-pressing sheet is disposed on said knife-pressing frame and said knife-withdrawing frame by inserting said knife-pressing slot and said knife-withdrawing slot;
• said press knife, said knife-pressing sheet, said knife-pressing slot, and said knife-withdrawing slot cooperate with each other in position;
• a knife-installing slot is disposed under said knife-pressing frame, and said press knife is installed flexibly on said knife-pressing frame via said knife-installing slot;
• and
• d) a swing arm is disposed between said left changeover panel and said slotted disc with the axis of the left changeover panel as center, and the number of said swing arm is the same as that of said press knife assembly;
• an end of said swing arm is connected fixedly with an axis end of said knife-pressing axis, and at the other end disposed is a rolling pin harmonizing with said punching slot and said changeover slot.