JPH0640183Y2 - Paper sheet accumulation mechanism - Google Patents

Description

[Detailed Description of the Invention] [Outline] Regarding a paper sheet stacking mechanism for accommodating processed forms and slips in a copying machine, OCR (optical reading device), etc., With the aim of always being able to stably accumulate various types of paper sheets regardless of the presence or absence of perforations, folds, breakage, etc., a stacking box for storing paper sheets and paper sheets released into the stacking box In a paper sheet stacking mechanism including a discharging roller group,
The discharge roller group includes a fixed roller whose position is fixed with respect to the stacking box, and presses the fixed roller to sandwich the paper sheet between the fixed roller and the discharge roller, and discharges the sheet into the stacking box. A moving roller that is rotatable along the outer periphery in the paper sheet discharging direction, and moves in conjunction with the moving roller, and contacts the discharged paper sheet when the moving roller moves in the discharging direction. The paper sheet is conveyed in a direction opposite to the discharging direction and is constituted by a pressing roller for pressing the paper sheet against the rear wall of the stacking box.

[Industrial application field]

The present invention relates to a paper sheet stacking mechanism for storing processed forms, slips, etc. in a copying machine, OCR or the like.

In a sheet processing apparatus such as OCR, various forms, slips, etc. having different sizes, thicknesses, perforations and the like are handled. Such slips and the like are discharged into the accumulation box after the processing is completed, and are aligned and accumulated.

[Conventional technology]

In a conventional paper sheet processing apparatus, in order to collect and stack various different paper sheets, the bottom of the stacking box is tilted, the paper sheets are discharged into the stacking box, and one end is stacked by its own weight. I was letting it.

[Problems to be solved by the device]

In the conventional paper sheet stacking mechanism, the paper sheets are simply slid and aligned along the slanted surface so that the sheets cannot be reliably stored, and one sheet is discharged into the stacking box. The next paper sheet to be discharged comes into contact with the previous paper sheet before the previous paper sheets are aligned in a predetermined position, and a smooth stacking operation cannot be obtained,
In particular, in the case of bent slips, partially broken slips, slips repaired with tape, etc., problems such as uneven stacking, misalignment of loads, and paper jams have occurred.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a paper sheet stacking mechanism capable of stably and reliably aligning and storing various paper sheets.

[Means for Solving the Problems]

FIG. 1 is an explanatory view of the principle of the present invention. In a paper sheet stacking mechanism including a stacking box 1 for storing paper sheets 2 and a discharge roller group 7 for discharging the paper sheets 2 in the stacking box 1, the discharge roller group 7 is provided in the stacking box 1. The fixed roller 4 whose position is fixed, and the fixed roller 4 which is pressed against the fixed roller 4
A paper sheet 2a is sandwiched between the paper sheet 2a and the paper sheet 2a, and the paper sheet 2a is discharged into the stacking box 1 and is movable along the outer periphery of the fixed roller 4 in the paper sheet discharge direction. The paper sheet 2c discharged when the moving roller 5 moves in the discharge direction, the paper sheet 2c is conveyed in the direction opposite to the discharge direction, and pressed against the rear wall of the stacking box. And a pressing roller 6 for

[Action]

The paper sheet is conveyed by the conveying roller 3 and reaches the discharge roller group 7. The fixed roller 4 rotates in the same arrow A direction as the conveying roller 3 and discharges the paper sheet 2a together with the moving roller 5 into the stacking box 1. When the rear end of the paper sheet 2a reaches a predetermined position, the moving roller 5 and the pushing roller 6 are rotated and moved along the outer periphery of the fixed roller 4 in the paper sheet discharge direction as indicated by arrow D. At this time, the moving roller 5 continues to rotate as shown by the arrow B, and the sheet 2a is discharged. As a result, the paper sheet receives a downward force as indicated by arrow E and bends downward as indicated by 2b.

Immediately before the moving roller 5 further rotates and the rear end of the paper sheet is discharged, the pushing roller 6 rotating in the direction of arrow C contacts the paper sheet 2c, as shown in FIG. Transport it backwards. Therefore, the rear end of the discharged paper sheets 2c is the accumulation box 1
The rear side wall is reliably abutted and aligned.

〔Example〕

FIG. 2 is a block diagram of an embodiment of the present invention. The basic structure and operation are the same as the principle diagram of FIG. The moving roller 5 and the pressing roller 6 are attached to a lever 8 which is rotatably mounted coaxially with the fixed roller 4. The lever 8 is rotated by a motor 9 via a gear as shown by an arrow F. The rotation operation control of the lever 8 is detected by a sensor, for example, when the rear end of the paper sheet reaches a predetermined position in front of the moving roller 5, and the timer is used only for the time until the rear end of the paper sheet is discharged. Drives the motor 9 to rotate the lever 8. The positions of the moving roller and the pushing roller are set so that the pushing roller 6 contacts the sheet immediately before the trailing edge of the sheet is discharged. The bottom surface of the stacking box 1 is inclined so that the rear side is lowered. The fixed roller 4 is made of, for example, urethane rubber, and the moving roller 5 and the pressing roller 6 are made of, for example, urethane foam, and is rotated by a frictional force between the rollers.

[Effect of device]

As described above, in the present invention, the movable roller and the pushing roller that are movable are provided on the outer periphery of the fixed roller that discharges the paper sheet, and the movable roller is moved in the discharge direction near the end of discharging the paper sheet. The paper sheet is ejected while being pressed forward and downward, and the paper sheet is pressed downward and rearward by the pressing roller immediately before the end of the ejection of the paper sheet. Therefore, the discharged paper sheets are aligned with the rear end reliably contacting the rear wall surface of the stacking box. Further, even if the paper sheets of different sizes are continuously discharged, the rear ends of the paper sheets are aligned, and therefore, the small-sized paper sheets accumulated in front do not collide with each other to cause a paper jam.

[Brief description of drawings]

FIG. 1 is a diagram illustrating the principle of the present invention, and FIG. 2 is a configuration diagram of an embodiment of the present invention. 1 ... Accumulation box, 2, 2a, 2b, 2c ... Paper sheets, 4 ... Fixed roller, 5 ... Moving roller, 6 ... Pushing roller, 7 ... Discharging roller group, 8 ... Lever.

Claims (2)

[Scope of utility model registration request] 1. A paper sheet comprising a stacking box (1) for housing the paper sheet (2) and a discharge roller group (7) for discharging the paper sheet (2) into the stacking box (1). In the stacking mechanism, the discharge roller group (7) is composed of a fixed roller (4) whose position is fixed to the stacking box (1) and the fixed roller (4) in pressure contact with the fixed roller (4). A moving roller (5) which discharges the paper sheet (2a) between them and discharges it into the stacking box (1), and which is rotatable along the outer periphery of the fixed roller (4) in the paper sheet discharging direction; It moves in conjunction with the moving roller (5) and contacts the discharged paper sheet when the moving roller (5) moves in the discharge direction, and conveys the paper sheet in a direction opposite to the discharge direction. The paper sheet stacking mechanism is characterized by comprising a pressing roller (6) for pressing against the rear wall of the stacking box. 2. A practical use characterized in that the moving roller (5) and the pushing roller (6) are attached to a lever (8) rotatably mounted coaxially with the rotation axis of the fixed roller (4). The paper sheet stacking mechanism according to claim 1 of the new model registration claim.