Automatic book binding mechanism

The utility model belongs to the field of office mechanical design, and relates to an automatic book binding mechanism. The automatic book binding mechanism comprises a machine head, a machine frame, a guide rail, a supporting rod and an output rod. The automatic book binding mechanism is characterized in that the mechanism further comprises a crank, a motor, a connecting rod, an oscillating bar, a push rod and a tray; the crank is directly connected with the motor, the crank, the connecting rod and the output rod are hinged, the oscillating bar and the supporting rod are hinged to the machine frame, the oscillating bar and the push rod are hinged, the supporting rod and the output rod are hinged, a groove is formed in the middle of the output rod, a pin shaft penetrates through the groove of the output rod to enable the guide rail and the output rod to be connected, the guide rail is fixedly arranged on the machine frame, the machine head is fixedly arranged on the guide rail, and the tray and the push rod are hinged. In the working process, books to be bound are placed on the tray, the motor is started, the push rod pulls the tray back to the position under the machine head through the relation of transmission, the quick-return characteristic of the mechanism is used, the machine head presses the books at a high speed, and thus the binding action is completed. By means of the automatic book binding mechanism, the book binding automation is achieved, and the binding efficiency is improved.