JP2007055751A - Paper sheet accumulation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper sheet accumulation device capable of performing accumulation of paper sheets with small rigidity by providing a level different arrangement layout given with a level difference to a belt just before an impeller accumulation device and performing impeller accumulation given with rigidity to the paper sheets by adding forced deformation to the paper sheets. <P>SOLUTION: The impeller is arranged on a periphery of a plurality of rotation shafts making three blades as one pair while corresponding to level difference belt arrangement by three belts. An opening angle of a distal end of the central blade of the three blades is increased relevant to the level difference arrangement and an opening angle of the blade other than it is reduced. Further, root parts of the three blades are made uniform and flat. Since the paper sheets have low rigidity, buckling or the like easily occurs. Linear stability to the blade is enhanced and behavior-unstable action by buckling and catching is reduced by adding forced deformation to the paper sheets just before the paper sheets are fed to the impeller accumulation part 430b. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a stacking device mounted on a paper sheet processing apparatus that processes paper sheets such as banknotes, and more particularly to a weak paper sheet stacking apparatus.

  A paper sheet processing apparatus that processes paper sheets picks up one lot of paper sheets loaded in a stacked state one by one by a paper sheet take-out apparatus, and conveys them to a subsequent processing unit. For example, when the paper sheet transported in this way passes through a paper sheet discriminating device provided on the transport path, information on the transport destination is detected, and the paper sheet is provided on the transport path based on the detection result. The plurality of sorting gates are switched and transported to a predetermined transport destination, where stacking processing or sealing processing is performed.

  In the stacking process, the sorted paper sheets are stacked by the paper sheet stacking apparatus. In recent years, an impeller accumulating apparatus has been used as a means for accumulating paper sheets conveyed at high speed. This impeller stacking device is suitable for the case where paper sheets transported at high speed are transported continuously and at regular intervals, absorbs the kinetic energy of the paper sheets transported at high speed, and is stored in a temporary stacker. This is because it is suitable for stationary accumulation. The impeller accumulating device takes in one sheet between the blades of the impeller accumulating device and accumulates them in the primary accumulation box (for example, see Patent Document 1). Here, when sorting and collection for one lot is completed, the outlets (shutters) of these temporary stacking chambers are opened, and the cassettes corresponding to the respective temporary stacking chambers are pressed and stored by pressing members (pressing plates). ing.

  Further, in the sealing process, paper sheets designated to be sealed are accumulated in the primary stacker, and for example, every 100 sheets are transported to the band winding unit and sealed with a paper band.

The impeller stacking device used for either the stacking process or the sealing process performs a sufficient function by properly inserting paper sheets between the blades. There have been used methods such as arranging the conveyor belt with the distance between the blades of the impeller as short as possible, overlapping the belt with the blades, and nesting the guides in the blades.
Japanese Patent Laid-Open No. 2-175559 (page 1-3, FIG. 1-FIG. 2)

  However, in the conventional method described above, it is difficult to feed paper sheets having different shapes, creased paper sheets, partially damaged bad-quality tickets, etc. between the blades of the impeller stacking device. There was a problem. For example, a paper sheet with a crease is a problem that it does not buckle between blades, or a part of a damaged paper sheet gets caught and does not enter the back of the blades. In addition, these paper sheets have a problem that they are likely to jam and fall off.

  The present invention has been made to solve the above-described problems, and is provided with a stepped arrangement layout in which a belt is provided with a step just before the impeller stacking device, and the sheet is forcibly deformed by this layout. A paper sheet stacking apparatus capable of stacking paper sheets having a low stiffness by performing impeller stacking after providing rigidity by the above.

  In order to achieve the above object, a paper sheet stacking apparatus according to claim 1 of the present invention is a stacking apparatus for stacking transported paper sheets, and includes at least three pairs of transporting paper sheets sandwiched between them. Of the three conveying belts, and the height on the conveying path for sandwiching the paper sheets by the pair of conveying belts arranged at the approximate center in the conveying direction, and arranged on both sides in the conveying direction. The conveying means in which the height on the conveying path for holding the paper sheets by the pair of conveying belts is arranged in a stepwise manner, and the paper sheets sent out by the conveying means are taken in between the blades arranged around the rotation axis. An impeller accumulating device having an impeller and an accumulating unit for accumulating paper sheets taken into the impeller is provided.

  The paper sheet stacking apparatus according to claim 2 of the present invention is a stacking apparatus for stacking transported paper sheets, and has at least three pairs of transport belts that sandwich and transport the paper sheets. Among the three pairs of transport belts, a pair of transport belts disposed on both sides in the transport direction and a height on the transport path for sandwiching the paper sheets by a pair of transport belts disposed substantially at the center in the transport direction Conveying means in which the height on the conveying path for sandwiching the paper sheets by the belt is arranged in a stepwise manner, and the opening angle between the blades is arranged in three steps according to the height of the paper sheets sent out by the conveying means. Impeller accumulation having an impeller that takes in the paper sheets between the blades that are arranged around the rotation axis with a single blade as a set, and a stacker that accumulates the paper sheets taken into the impeller Characterized by comprising a device

  Furthermore, the paper sheet stacking apparatus according to claim 3 of the present invention is a stacking apparatus for stacking transported paper sheets, and has at least three pairs of transport belts that sandwich and transport the paper sheets. Among the three pairs of transport belts, a pair of transport belts disposed on both sides in the transport direction and a height on the transport path for sandwiching the paper sheets by a pair of transport belts disposed substantially at the center in the transport direction A conveying means in which the height on the conveying path for sandwiching the paper sheets by the belt is arranged in a stepwise manner, and an opening angle between the blades is arranged in a stepwise manner in accordance with the height of the paper sheets sent out by the conveying means. An impeller stacking apparatus having an impeller that takes in the paper sheets between the blades in which a plurality of pairs of blades are arranged around the rotation axis, and a stacker that accumulates the paper sheets taken into the impeller. It is characterized by having.

  According to the present invention, by providing an uneven layout with a step on the belt immediately before the impeller accumulating device, and by imparting rigidity by forcibly deforming the paper sheets, the impeller accumulation is performed by Accumulate paper sheets that are weak.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic sectional view of a paper sheet processing apparatus equipped with a paper sheet stacking apparatus according to the present invention. This paper sheet processing apparatus includes a paper sheet processing unit 1 and a main control unit 500. The paper sheet processing unit 1, based on designation from the operation unit 502 of the main control unit 500, for a plurality of types of paper sheets P having a plurality of different sizes mixed and input together, For example, the transport state of the paper sheet P to be processed is aligned in a state where it is upright on the surface and is accumulated for each ticket type. At this time, the type of paper sheets to be sealed after being stacked on the temporary stacking units 422a and 422b of the sealing unit 4 from the operation unit 502 and the type of paper sheets to be stacked on the cassettes of the stacking units 430a to 430f (hereinafter referred to as paper) The type of leaf is called a ticket type).

  Here, the conveyance state when the paper sheet P is conveyed will be described. The paper sheet P has a front (Face: state with the front side up), back side (Back: state with the back side up), positive (Forward: state where printing of the front or back side of the paper sheet is upright), There are four types of reverse (Reverse: state in which the printing of the front or back side of the paper sheet is inverted), and there are four types of conveyance states consisting of front normal FF, front reverse FR, reverse normal BF, reverse reverse BR combining these It is formed.

  The paper sheet processing unit 1 includes a supply unit 10 that supplies the paper sheet P, a paper sheet take-out device 200 that takes out the paper sheets P supplied from the supply unit 10 one by one, and the paper sheet take-out unit And a transport path (transport means) 16 for transporting the paper sheet P taken out by the apparatus 200. In addition, a conveyance pitch correction unit 210 that corrects the conveyance pitch of the paper sheet P conveyed by the conveyance path 16 is disposed. Further, a paper sheet discriminating device 19 for discriminating the paper sheets P whose transport pitch is corrected by the transport pitch correcting unit 210 one by one is disposed. A reversing processing unit is provided for reversing in order to align the transport state of the paper sheet P based on the determination result of the paper sheet determining device 19. In this way, the paper sheets P having the transported state are sealed, the sealing unit 4 for sealing based on the setting unit for setting the sorting method, and the stacking units (stacking unit) 430a to 430f for stacking for each ticket type. (Sorting means).

  The paper sheet processing unit 1 is connected to the main control unit 500 via the interface 501.

  The supply unit 10 includes a stage 11 that contacts and aligns a paper sheet P in which four types of conveyance states coexist, and a backup plate 12 that stands vertically with respect to the stage 11. Further, the backup plate 12 can be moved to the left along the stage 11 by the biasing force of the spring 13. The paper sheet P supplied in this way is pressed against the pickup roller 5 side by the backup plate 12.

  The conveyance pitch correction unit 210 is installed close to the conveyance direction downstream of the conveyance roller 211 to detect the paper sheet P and the rotation speed can be varied by the driving force from the conveyance roller drive motor 212. And a conveyance pitch controller (not shown) that controls the pinch roller 214 and the conveyance roller drive motor 212 disposed opposite to the conveyance roller 213.

  The sorting gate G1 is, for example, a gate that sorts a reject ticket and a processing ticket. The reject ticket refers to an “unidentifiable ticket” in which the paper sheet P determined by the paper sheet determination unit 20 cannot be determined due to a fake ticket, fold, torn, skew, or the like. When received, the sorting gate G1 is rotated to the right (clockwise) to stack the indistinguishable tickets in the reject stacking unit 80.

  Further, the “processed ticket” means that the paper sheet P discriminated by the paper sheet discriminating unit 20 is a genuine note and a genuine ticket (Fit: re-distributable ticket), or a genuine note and a damaged ticket (UnFit: non-distributable ticket). When the conveyance control unit 26 receives the determination signal, the sorting gate G1 is rotated to the left (counterclockwise).

  The inversion processing unit includes a switchback inversion unit 3 and a front / back inversion unit 9, and one or both of the switchback inversion unit 3 and the front / back inversion unit 9 are used depending on the direction in which the inversion processing unit is arranged.

  The switchback reversing unit 3 is installed close to the downstream of the conveyance roller pair 300 and 301 in the conveyance direction and detects the paper sheet P, and is installed close to the conveyance direction downstream of the timing sensor SC2. The sorting gates G10 and G11 and the reversing processing unit take-in rollers 302 and 303 take in the reversing unit 311.

  The reversing unit 311 includes a reverse rotation roller 304 and a pickup roller 305 that rotate forward to convey the captured paper sheet P in the direction of the arrow A31, a reverse rotation roller drive motor 310 that drives the reverse rotation roller 304, and a conveyance roller. 306 and 307.

  Further, transport rollers 308 and 309 are provided for transporting the paper sheet P taken in the reversing unit 311 in the direction of the arrow A32 in order to reverse it and discharging it from the switchback reversing unit 3.

  Here, the reverse rotation roller 304 rotates forward when the paper sheet P is conveyed in the direction of the arrow A31 in the figure, and rotates reversely when conveyed in the direction of the arrow A32 in the figure.

  The sorting gate G2 is a front / back forward / backward sorting gate. Based on the result of the conveyance state of the paper sheet P discriminated by the paper sheet discriminating unit 20, the paper sheet P is rotated to the right (clockwise) when the front / back inversion is required, and the paper sheet P is indicated by an arrow A6 in the drawing. The front / back reversing part 9 is passed. When the front / back inversion is not required, the sorting gate G2 is rotated to the left side to transport the paper sheet P in the direction indicated by the arrow A4 in the drawing.

  The front / back reversing unit 9 reverses the front and back of the transport state of the paper sheet P determined by the paper sheet determination unit 20 of the paper sheet determination device 19. For example, when the conveyance state is reverse (BF), the front / back reversing unit 9 makes the front FF.

  The distribution gate G3 is a distribution gate that distributes the conveyed paper sheet P to the sealing unit 4 and the stacking units 430a to 430f. When the paper sheet P to be transported is a ticket type designated to be sealed by the main control unit 500, the transport control unit 26 rotates the sorting gate G3 to the right (clockwise), and the paper sheet P Is conveyed in the direction of the arrow A40 shown in the figure with the sealing part 4. Further, the paper sheets P of other ticket types are sorted so as to be stacked on the stacking units 430a to 430f from the gate G3 via the gates G4 to G8.

  The sealing unit 4 and the stacking units 430a to 430f are provided with an impeller stacking device as a stacking device that stacks paper sheets at the end of the transport path so as to be separated from the transport path where the paper sheets are transported.

  The impeller accumulation device includes an impeller 421, temporary accumulation units 421, 422a, and 422b, and an apparatus that assists accumulation (described later).

  The impeller 421 has a plurality of blades incorporated around the rotation shaft, and conveys paper sheets so that the conveyed paper sheets can be received between the blades (hereinafter referred to as between the blades). It is rotating in sync with. By using this impeller, the kinetic energy of the paper sheet conveyed at high speed is absorbed, and the paper is accumulated in the temporary accumulating section in an aligned state.

  The form of the temporary stacking unit differs between the temporary stacking unit 421 used in the stacking units 430a to 430f and the temporary stacking unit 422a and 422b of the sealing unit 4 because the purpose of processing thereafter is different.

  The temporary stacking unit 432 used in the stacking units 430 a to 430 f is provided with a shutter 433, and paper sheets are stacked on the shutter 433. The paper sheets accumulated on the shutter 433 are opened, for example, when a job is instructed (not shown) or the like when the paper is full, and the paper sheets are dropped onto a cassette 438 provided below the shutter 433. And accumulated.

  On the other hand, in the temporary stacking sections 422a and 422b of the sealing section 4, when 100 sheets of paper sheets stacked on the backup plates 423a and 423b reach 100 sheets, they are transferred to the transport carrier 404 and are wound by the band winding section 410. (Details will be described later).

  The sealing unit 4 (sealing means) is a temporary stacking unit (stacking unit) 422a, 422b for stacking the paper sheets P transported by the sealing transport paths 401a, 401b, and a transport for transporting the stacked paper sheets. And a paper band part that seals the conveyed paper sheet with a printed paper band. Hereinafter, each part structure of the sealing part 4 is demonstrated.

  The temporary stacking units 422a and 422b include backup plates 423a and 423b that count the transported paper sheets P and sort and stack them every 100 sheets.

  The conveyance unit includes vertical conveyance paths 402 a and 402 b, a conveyance carrier 404, and a horizontal conveyance path 405. The vertical conveyance paths 402a and 402b are for ascending or descending 100 sheets 412 received by the backup plates 423a and 423b. In addition, the transport carrier 404 receives 100 sheets 412 from the backup plate 423a or 423b at the stop position of the vertical transport path 402a or the vertical transport path 402b, and transfers the horizontal transport path 405 to the sealing tray (not shown). It is configured to be able to reciprocate on the top.

  The paper band unit prints a paper band 408 for sealing 100 sheets 412 stacked on the sealing tray, a printing unit 409 for printing on the paper band 408, and 100 sheets 412. A band winding unit 410 that seals with a used paper band and a sealing control unit 400 that controls the sealing unit 4 are configured.

  FIG. 2 is a block diagram illustrating the configuration of the paper sheet discriminating apparatus 19 and the main control unit 500. The paper sheet discriminating device (discriminating means) 19 includes a paper sheet discriminating unit 20 that discriminates the paper sheet P and a transport control unit 26 that determines a destination of the paper sheet P to be transported.

  The paper sheet discriminating unit 20 includes a plurality of sensors 1 to n for detecting optical characteristics and magnetic characteristics related to the material of the paper sheet P, and amplification circuits 1 to 1 that amplify output signals of these sensors 1 to n. n, processing means for processing the output signals of the amplifier circuits 1 to n. The processing means includes an A / D conversion unit 24 for A / D conversion, a logic circuit unit 23 that performs a logical operation on data A / D converted by the A / D conversion unit 24, and an output of the logic circuit unit 23 In addition to discriminating true / false (genuine or counterfeit) from the signal, whether it is correct or not (a genuine note or a damaged note), the CPU 21 that controls the entire paper sheet discriminating unit 20 and a storage unit 25 accessed by the CPU 21, And an I / F unit 22 for communicating results and data determined by the CPU 21 with the main control unit 500.

  The transport control unit 26 is accessed by the CPU 27 that determines the destination of the transported paper sheet P based on the determination result of the paper sheet determination unit 20 and controls the transport of the paper sheet P. And an I / F unit 28 of the paper sheet discriminating unit 20.

  The paper sheet processing unit 1 configured as described above includes a transport control unit 26 that controls transport of the paper sheet P, and a sealing control unit that seals the paper sheet P transported by the transport control unit 26. 400.

  That is, after the paper sheet P is supplied to the paper sheet processing apparatus, the ticket type designated to be sealed by the operation unit 502 empty operator of the main control unit 500 is conveyed to the sealing unit 4, and Ticket types other than are stored in the reject stacking unit 80 or the stacking units 430a to 430f.

  FIG. 3 is a front view of the stacking units 430a and 430b. Since the stacking units 430a to 430f are composed of the same parts, the stacking unit 430b will be described, other stacking devices will be omitted, and different parts will be described later.

  The stacking unit 430b includes an impeller 421 that receives paper sheets conveyed from the stacking conveyance path 439b, and a temporary stacking unit 432 that collects paper sheets received by the impeller 421.

  The temporary stacking unit 432 has a shutter 433 that is disposed at the bottom when stacking paper sheets and that can be opened and closed to the left and right, and a positioning device 435 for positioning the paper sheets stacked on the shutter 433. 436 are arranged. In addition, the temporary stacking unit 432 is provided with a scraping device 437b, so that paper sheets caught on the impeller 421 during stacking can be scraped when the impeller 421 rotates.

  The shutter 433 is composed of two plate-like bodies, and is provided so as to be openable and closable in a direction orthogonal to the sheet stacking direction. In the embodiment, two plate-like bodies provided so as to intersect at the approximate center can be opened and closed simultaneously.

  The aligning device 435 positions misalignment when the paper sheets are stacked in the direction orthogonal to the transport direction of the paper sheets, and the aligning device 436 is used when the paper sheets are stacked in the transport direction of the paper sheets. Align the misalignment of.

  The paper sheets stacked on the shutter 433 configured in this way are detected to be full by a full detection sensor (not shown) when the temporary stacking unit 432 is full. As a result of this full detection, the shutter 433, which is two plate-like bodies, is opened, and the paper sheets accumulated on the shutter are placed on a backup plate (not shown) provided in the cassette 438 shown in FIG. Drop and accumulate. Further, the pusher 434 descends, presses the accumulated paper sheets, and pushes them into the cassette 438.

  When the paper sheets stored in the cassette 438 become full, they are detected by full detection (not shown). Based on the result of the full detection, the operator can perform the replacement work of the cassette 438 from the operation unit 500. At this time, the lock mechanism of the cassette 438 with respect to the apparatus is released.

  The operator removes the unlocked cassette 438 from the apparatus, removes the paper sheets from the cassette, and returns the cassette to its original position. Then, when the cassette replacement by this series of operations is completed, the released lock is locked again.

  FIG. 4 is an example of poor paper sheets. FIG. 4 (1) is an example of a torn paper sheet, and (FIG. 4) (2) is an example of a middle folded paper sheet.

  FIG. 5 is an example when the paper sheet P buckles in the impeller stacking device. As can be seen in this figure, the paper sheet P buckled between the blades is shown inserted, and in this case, since the paper sheet is buckled, a state where the paper sheet P is not inserted deeply occurs. .

  FIG. 6 is a perspective view showing forced deformation of the paper sheets by the uneven belt arrangement. FIG. 6A is an example of a stepped belt arrangement diagram, and FIG. 6B is a cross-sectional view showing the belt arrangement when the belts are stepped.

  Since paper sheets have low rigidity, buckling is likely to occur originally. Therefore, buckling is achieved by improving the straight-line stability (push-in property) to the blade by forcibly deforming (bending) the paper sheet immediately before feeding the paper sheet to the impeller stacking unit 430b. It is possible to reduce unstable behavior due to catching. For this reason, the present embodiment is an example in which the sheets are forcibly deformed and the rigidity is increased by the stepped belt arrangement in which the belts are stepped.

  FIG. 7 is a front view of the uneven belt arrangement according to the first embodiment. In the present embodiment, the belt arrangement position at the center of the three belts arranged in the conveyance direction is increased, and the other belt positions are decreased.

  FIG. 8 is a perspective view of an impeller with three blades corresponding to the uneven belt arrangement according to the first embodiment. FIG. 8A is an overall view, and FIG. 8B is a detailed view of the blade portion. This impeller is configured by arranging three blades around a plurality of rotation shafts as a set corresponding to the uneven belt arrangement by three belts. Corresponding to the uneven belt arrangement shown in FIG. 7, the opening angle of the tip of the central blade of the three blades is increased, and the opening angle of the other blades is decreased. However, the base of the three blades is flat.

  By adopting such a configuration, the paper sheets that are forcibly deformed and inserted are easy to take in due to the large opening angle of the central portion of the tip of the blade, and the paper sheets that are taken in are gradually inserted while being inserted. It will return to the original model.

  FIG. 9 is a perspective view of an impeller 441 configured with a single blade 441a corresponding to the uneven belt arrangement according to the first embodiment. FIG. 9A is a perspective view of the impeller 441 of the present embodiment. Since the parts other than the impeller 441 and the single blade 441a are the same as those of the first embodiment shown in FIG. 1, the description thereof will be omitted, and only the impeller 441 and the single blade 441a will be described.

  The impeller 441 is constituted by a deformed single blade 441a corresponding to a stepped belt arrangement with three belts, and a plurality of single blades 441a are arranged around a rotating shaft. .

  FIG. 9B is a perspective view of the single blade 441a. As shown in the figure, the central portion of the tip of the single blade 441a is convex and the root is flat. With this structure, the paper sheets that have been forcibly deformed and inserted are easy to be taken in due to the large opening angle at the center, and the taken-in paper sheets gradually return to the original shape while being inserted.

  Also in this case, the same accumulation effect as that of the impeller of Example 1 shown in FIG. 8 can be obtained.

  With such a configuration, since the three blades become one blade, manufacture and assembly are facilitated, and it is possible to manufacture at a lower cost than in the first embodiment.

1 is a schematic cross-sectional view of a paper sheet processing apparatus equipped with a paper sheet stacking apparatus according to an embodiment of the present invention. The schematic block diagram of a paper sheet discrimination | determination apparatus and a main control part. The front view of an impeller integration | stacking apparatus. An example of poor paper sheets. An example when paper sheets buckle in the impeller stacking device. The perspective view which shows the forced deformation of the paper sheets by uneven belt arrangement | positioning. FIG. 3 is a front view of the uneven belt arrangement according to the first embodiment. FIG. 3 is a perspective view of an impeller configured with three blades corresponding to the uneven belt arrangement according to the first embodiment. FIG. 6 is a perspective view of an impeller configured with a single blade corresponding to the uneven belt arrangement according to the second embodiment.

Explanation of symbols

P Sheets G1 to G8 Sorting gates G10 to G12 Sorting gate 1 Sheet handling unit 3 Switchback reversing unit 4 Sealing units 401a and 401b Sealing transport path 402 Vertical transport path 404 Transport carrier 405 Horizontal transport path 408 Paper Band 409 Printing section 410 Band winding section 420 Impeller accumulation section 421 Impeller 421a Blade 422a, 422b Temporary accumulation section 423 Backup plate 434 Push plate 435, 436 Positioning guides 430a-430f Accumulation section 432 Temporary accumulation section 433 Shutter 438 Cassette 439a ˜439f Accumulated conveyance path 441 Impeller 441a Blade 500 Main control unit 502 Operation unit

Claims (4)

An accumulator that accumulates conveyed paper sheets,
Transport having at least three pairs of transport belts for sandwiching and transporting paper sheets, and sandwiching the paper sheets by a pair of transport belts arranged in the approximate center of the transport direction among the three pairs of transport belts Conveying means in which the height on the road and the height on the conveying path sandwiching the paper sheets by a pair of conveying belts arranged on both sides in the conveying direction are arranged in steps;
An impeller stacking device having an impeller that takes in paper sheets sent out by the conveying means between blades arranged around a rotation axis, and a stacker that collects the paper sheets taken into the impeller. A paper sheet stacking apparatus, comprising: An accumulator that accumulates conveyed paper sheets,
Transport having at least three pairs of transport belts for sandwiching and transporting paper sheets, and sandwiching the paper sheets by a pair of transport belts arranged in the approximate center of the transport direction among the three pairs of transport belts Conveying means in which the height on the road and the height on the conveying path sandwiching the paper sheets by a pair of conveying belts arranged on both sides in the conveying direction are arranged in steps;
According to the height of the paper sheet sent out by the conveying means, the paper sheet between the blades arranged in a plurality of sets around the rotation axis with one set of three blades arranged with different opening angles between the blades. A paper sheet stacking apparatus comprising: an impeller that includes a blade wheel and an impeller stacking device that stacks the paper sheets loaded into the impeller. An accumulator that accumulates conveyed paper sheets,
Transport having at least three pairs of transport belts for sandwiching and transporting paper sheets, and sandwiching the paper sheets by a pair of transport belts arranged in the approximate center of the transport direction among the three pairs of transport belts Conveying means in which the height on the road and the height on the conveying path sandwiching the paper sheets by a pair of conveying belts arranged on both sides in the conveying direction are arranged in steps;
A blade that takes in the paper sheet between blades in which a plurality of blades arranged around the rotation axis are arranged around the rotation axis in accordance with the height of the paper sheet sent out by the conveying means. A paper sheet stacking apparatus comprising: a car and an impeller stacking apparatus having a stacker for stacking the paper sheets taken into the impeller.   The opening angle of the tip of the three blades and the one blade is arranged in the stepwise manner, the root portions of the three blades and the one blade are made flat, and forced by the three pairs of conveying belts arranged in the stepwise manner. 4. The paper sheet stacking apparatus according to claim 2, wherein the deformed paper sheets are returned to the original state.

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