Paper processing unit for binding device

1. In a binding device comprising a paper processing unit that moves a sheet of papers from a paper carriage to a paper finishing unit and moves the sheet of papers finished by the paper finishing unit to a receiving stacker, the paper processing unit comprising:

a paper aligning unit including a tray stacking the sheet of papers, a rotational stopper provided at the end of the tray, stopping the sheet of papers stacked on the tray, and a paper clamp gripping the sheet of papers stacked on the tray and moving them to the paper finishing unit when stopping of the rotational stopper is released; and

a binding carriage having a lifting unit structured to support the sheet of papers and adjust the angle of the sheet of papers depending on the binding position while the paper clamp moves the sheet of papers to the paper finishing unit and the binding process of the sheet of papers is performed, wherein the angle of the sheet of papers of which binding is finished is adjusted to move them to the position of the receiving stacker.

2. The paper processing unit according to claim 1 , wherein the binding carriage includes a conveyer so that the sheet of papers ejected from the lifting unit is moved to the receiving stacker through the conveyer.

3. The paper processing unit according to claim 1 , wherein the lifting unit includes an arc shaped angle adjusting gear engaged with a lifting unit driving gear and a paper support extended from the angle adjusting gear, the angle of the paper support being adjusted by rotating the angle adjusting gear along its support shaft when the driving gear is rotated.

4. The paper processing unit according to claim 1 , wherein the rotational stopper is linked to a crank fixed to the lower end of the tray and is rotated at a predetermined angle by driving the crank to move a protrusion toward upper and lower portions of the tray.

5. The paper processing unit according to claim 1 , wherein the paper clamp includes a clamp base and a clamp plate moving along a paper clamp sliding rail and a driving means closing and opening the clamp plate toward the clamp base.

6. The paper processing unit according to claim 1 , wherein the driving means of the clamp plate includes a clamp gear fixed to a rotary shaft of the clamp plate along with the clamp plate, a clamp motor rotating the clamp gear, and a spring fixed to the clamp plate to act tension on the clam base.

7. A paper processing unit comprising:

a tray stacking a sheet of papers moved from a paper carriage to move them to a paper finishing unit;

a stopper provided at the end of the tray, stopping the sheet of papers stacked on the tray;

a paper clamp gripping the sheet of papers stacked on the tray and moving them to the paper finishing unit when stopping of the stopper is released; and

an opening provided at an outer end of the tray, wherein the opening is formed by an open tray at the outer end of the tray to close and open.

8. The paper processing unit according to claim 7 , wherein the open tray is opened to support the rear end of the sheet of papers stacked on the tray, the opening is formed by opening the open tray, and the sheet of papers is manually stacked on the tray through the opening.