Paper sheet type medium stacking device

Abstract

A sheet-type medium stacking device is provided, through which the sheet-type media are stacked piece by piece and a whole stack of media don't wriggle and draw back. The device includes a piece-by-piece sheet-type media conveying mechanism, an upper conveyor belt, an arc-shaped stacking plate, a movable blocking mechanism, a sensor device and a control unit. An acanthus-shaped protruding rib is arranged at a position, at a distance of a length of one sheet of the sheet-type medium from the movable blocking mechanism, on the arc-shaped surface of the arc-shaped stacking plate, and the acanthus-shaped protruding rib allows the sheet-type media to pass only in a discharging direction. The acanthus-shaped protruding rib is provided with a stop surface and a derivation surface, thus the sheet-type media may only be transmitted along one direction and the movements thereof are irreversible.

1 . A sheet-type media stacking device, comprising:
 a piece-by-piece sheet-type media conveying mechanism configured to convey sheet-type media piece by piece;   an upper conveyor belt, arranged around a driving transmission shaft and driven transmission shaft which are arranged in a conveying direction of the sheet-type media, configured to provide a driving force to the sheet-type media;   an arc-shaped stacking plate configured to support the sheet-type media, wherein an arc-shaped surface, fitting closely to the upper conveyor belt, of the arc-shaped stacking plate defines a conveying passage for the sheet-type media, a length of the conveying passage is at least greater than a length of one sheet of the sheet-type medium in the conveying direction, and one end of the conveying passage abuts the piece-by-piece sheet-type media conveying mechanism and is slightly lower than a delivering outlet of the conveying mechanism, and another end of the conveying passage forms an outlet for a whole stack of sheet-type media;   a movable blocking mechanism arranged on a section of the conveying passage close to the outlet and configured to selectively block the sheet-type media;   a sensor device arranged at a tail end of the delivering outlet of the piece-by-piece sheet-type media conveying mechanism and configured to detect the arrival and passing of a sheet of the sheet-type medium; and   a control unit configured to control the upper conveyor belt to move or stop moving according to information feedback from the sensor device;   wherein, an acanthus-shaped protruding rib is arranged at a position, at a distance of a length of one sheet of the sheet-type medium from the movable blocking mechanism, on the arc-shaped surface of the arc-shaped stacking plate, and the acanthus-shaped protruding rib allows the sheet-type media to pass only in a discharging direction.   
     
     
         2 . The sheet-type media stacking device according to  claim 1 , wherein the number of the acanthus-shaped protruding rib is at least two, and the at least two acanthus protruding ribs are arranged in a front-rear order along the discharging direction of the sheet-type media. 
     
     
         3 . The sheet-type media stacking device according to  claim 1 , wherein the arc-shaped stacking plate comprises the following three sections, wherein a section near the piece-by-piece sheet-type media conveying mechanism forms the rear arc-shaped plate, a section near the outlet forms the front arc-shaped plate, and a middle section forms the reversing device. 
     
     
         4 . The sheet-type media stacking device according to  claim 3 , wherein a recycling conveyor belt assembly and a discharging conveyor belt assembly are arranged below the reversing device and the front arc-shaped plate, wherein at least a section of the recycling conveyor belt assembly fits with a section of the discharging conveyor belt assembly to form a recycling conveying passage for the sheet-type media. 
     
     
         5 . The sheet-type media stacking device according to  claim 1 , wherein one surface, facing to the movable blocking mechanism, of the acanthus protruding rib is perpendicular to the conveying passage to form a stop surface; one surface, opposite to the stop surface, and the conveying passage form an angle greater than 90 degrees and less than 180 degrees so as to form a derivation surface. 
     
     
         6 . The sheet-type media stacking device according to  claim 2 , wherein one surface, facing to the movable blocking mechanism, of the acanthus protruding rib is perpendicular to the conveying passage to form a stop surface; one surface, opposite to the stop surface, and the conveying passage form an angle greater than 90 degrees and less than 180 degrees so as to form a derivation surface. 
     
     
         7 . The sheet-type media stacking device according to  claim 3 , wherein one surface, facing to the movable blocking mechanism, of the acanthus protruding rib is perpendicular to the conveying passage to form a stop surface; one surface, opposite to the stop surface, and the conveying passage form an angle greater than 90 degrees and less than 180 degrees so as to form a derivation surface. 
     
     
         8 . The sheet-type media stacking device according to  claim 4 , wherein one surface, facing to the movable blocking mechanism, of the acanthus protruding rib is perpendicular to the conveying passage to form a stop surface; one surface, opposite to the stop surface, and the conveying passage form an angle greater than 90 degrees and less than 180 degrees so as to form a derivation surface.