JP2002170146A - Paper sheet processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent load collapse caused by unevenness in the height in stacking bank notes. SOLUTION: This paper sheet processing device is provided with a carrier means H carrying bank notes P, a determination part 9 determining the directions of the front/rear and the top/bottom of the bank notes P carried by the carrier means H, branch devices 11, 13, and 18 switching the carrier paths a-d of the bank notes P according to the determination result of the determination part 9 so as to change the directions of the bank notes P in prescribed directions, pockets 26a-26d collecting the bank notes P whose directions are changed by the branch devices 11, 13, and 18, and a control means 51 changing the direction of following bank notes P to be collected in the pockets 26a-26d reversely to the direction of the bank notes P already collected therein by actuating the branch devices 11, 13, and 18 at every time collecting the prescribed number of notes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet processing apparatus applied as, for example, a paper sheet sorting and organizing apparatus.

[0002]

2. Description of the Related Art Paper sheets, such as banknotes, checks, and gift certificates, function as key media for socio-economic activities. In the course of distribution, a large amount of such paper sheets are collected at a specific location, so that it is necessary to arrange the business by face value or type.

[0003] In order to automate and save labor of this kind of business,
A so-called paper sorting and sorting apparatus has been developed. This paper sheet sorting and organizing device discriminates the type by inserting the paper sheets in a loose state, and sorts and accumulates the discriminated types for each discriminated type, or 100
It is designed to be bundled one by one.

When paper sheets are classified and accumulated for each type, it is desired that the paper sheets have the same orientation as much as possible. Therefore, in recent years, when sheets are inserted into the sheet sorting and sorting machine in four directions, top and bottom, and the front and back sides are separated, the direction is discriminated, and the sheet is reversed so as to face a predetermined direction. Have been developed so that the orientation of paper sheets can be aligned.

[0005]

However, in the above-described apparatus capable of aligning the posture of the paper sheet in four directions, that is, the front and back, and the top and bottom, there is a problem in the conventional apparatus in which the orientation of the paper sheet cannot be aligned. A new problem has arisen.

[0006] That is, the height is uneven due to the accumulation and stacking of paper sheets, which causes a problem that a collapse of the load occurs and hinders the accumulation operation.

[0007] The unevenness of the height due to the accumulation and stacking of paper sheets is due to the unevenness of the thickness of the paper sheets. For example,
In the case of banknotes, intaglio printing is used for pattern printing,
In intaglio printing, the ink protrudes from the surface of the bill. Assuming that the paper thickness of the banknote is, for example, 100 μm, the swelling height of the ink is on the order of 10 to 40 μm.

[0008] For this reason, in a design in which a banknote is printed without printing on one side of the banknote, and is printed on the other side, for example, when one hundred sheets are stacked, one side of the banknote is printed. There was a problem that the load was 100 mm and the other side was 140 mm and the load collapsed.

[0009] On the other hand, the banknotes accumulated on 1000 sheets may be bundled by the operator's hand every predetermined number of sheets, for example, 500 sheets.

However, conventionally, for example,
The operator simply accumulated 1000 bills, and the operator himself counted and bundled 500 bills, which was troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent unevenness in height due to stacking of paper sheets, and to prevent paper collapse. It is an object to provide a processing device.

Further, the present invention provides a paper sheet processing apparatus in which an operator can bundle a predetermined number of paper sheets without counting the number of paper sheets.

[0013]

In order to solve the above-mentioned problems, the present invention is directed to a transporting means for transporting paper sheets, and the front and back of the paper sheets transported by the transporting means. Discriminating means for discriminating the direction of the top and bottom, switching means for changing the direction of the paper sheets in a predetermined direction by switching the transport path of the paper sheets according to the discrimination result of the discriminating means; A stacking unit for stacking the paper sheets whose direction has been changed by the means, and each time a predetermined number of the paper sheets are stacked on the stacking unit, operating the switching unit to change the transport path, Control means for changing the direction of subsequent sheets to be stacked in the stacking section in a direction opposite to the direction of already stacked sheets.

According to an eighth aspect of the present invention, there is provided a conveying means for conveying a sheet, an attitude correcting means for correcting the attitude of the paper sheet conveyed by the conveying means to a predetermined attitude, and an attitude correcting means. Discriminating means for discriminating the front and back and top and bottom directions of the paper sheet whose orientation has been corrected, and switching the sheet conveyance path according to the discrimination result of the discriminating means to change the direction of the paper sheet in a predetermined direction And a stacking unit for stacking the sheets whose orientation has been changed by the switching unit, and operating the switching unit every time a predetermined number of sheets are stacked on the stacking unit. First control means for changing the direction of subsequent sheets to be stacked in the stacking unit in the opposite direction to the direction of already stacked sheets by changing the transport path; Every time a predetermined number of sheets are stacked By operating the posture correction means to change the transport position of the paper sheets, the paper sheets to be stacked in the stacking unit or a predetermined number of subsequent sheets are already stacked in the stacking unit. And second control means for displacing a predetermined amount of paper sheets in the plane direction.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.

FIG. 1 is an internal configuration diagram showing a banknote sorting / arranging machine as a paper sheet processing apparatus according to an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a housing, and a table 1A is provided at a central portion on one side of the housing 1, and a bill supply unit 2 is provided on the table 1A. A plurality of banknotes P as paper sheets are stored in the banknote supply unit 2 in a standing state. The bill P is pressed against the feeding roller 5 by a backup plate 4 urged by a spring 3.

The bills P are separated and taken out one by one by the rotation of the feeding roller 5, and are conveyed by a clamp type conveying means H constituted by a belt 6 and a roller 7. The conveying means H is provided with a posture correcting device 8 for automatically correcting the shift and skew of the taken out banknote P.

The belt 6 is composed of three transport belt pairs 49, as will be described later, and the banknotes P passing through the posture correcting device 8 are nipped and transported by the three transport belt pairs 49. The clamping force of the transport belt pair 49 is set to be weak, and does not become a load when the attitude of the banknote P is changed by the attitude correction device 8.

A discriminating section 9 as discriminating means is provided downstream of the conveying means H in the bill conveying direction. This discriminator 9
Reads various information from the surface of the banknote P conveyed by the roller pair 10, performs a logical operation on the information, and compares it with reference information to determine whether there is dirt or damage, the amount of money, the amount of money, the top and bottom, and the front and back. It is to determine.

A counter 57 for counting the number of passing bills is provided downstream of the discriminating section 9 in the bill conveying direction, and a first branching device 11 as switching means is provided. The first branching device 11 takes the two bills determined by the determination unit 9 and guides the banknotes that are not determined to be genuine, such as banknotes of large skis of a certain size or more, to the reject box 12, or the banknotes determined to be genuine. To the second branching device 13 as switching means.

The second branching device 13 divides the transport direction of the banknote P into first and second directions. A left-right inversion path 14 is provided in the first direction.
Has a twist belt 15 for inverting the bill P 180 degrees left and right. A simple belt transport unit 16 is provided in the second direction, and transports the banknote P as it is. The bills branched and conveyed in the first and second directions join at the joining section 17. The path length to this junction 17 is made equal,
The gap after the banknotes are merged does not shift.

A third branching device 18 as switching means is provided downstream of the merging section 17 in the bill transport direction.
The transport direction of the bill P is changed to the third and fourth
It branches in the direction of. A switchback path unit 19 is provided in the third direction. Switchback path unit 19
Is provided with a reversing box 20 for introducing the banknote P, and a roving wheel 21 for pressing the rear end of the banknote P guided to the reversing box 20 against the reversing roller 21a. The bill P is sent out of the reversing box 20 so that its top and bottom are reversed and conveyed. A simple belt transport unit 22 is provided in the fourth direction, and the banknote P is transported while maintaining the same posture.
The bills branched and conveyed in the third and fourth directions join at the joining section 23. The path lengths of the branch paths to the junction 23 are made equal so that the intervals after the junction do not shift.

A horizontal transport path 24 is provided downstream of the merging section 23 in the banknote transport direction, and the horizontal transport path 24 is provided with a number of branching devices 25a to 25 one less than the number of parts to be divided.
d is provided. Below the branching devices 25a to 25d, first to fourth type-specific pocket portions 26a to 26 are provided as an accumulation portion, and the banknotes P are stacked in a horizontal state in the type-specific pocket portions 26a to 26. It is being accumulated.

Below the first branching device 25a, 10
A zero-sheet sealing device 27 is provided. The stacking unit 2 that stacks and sorts 100 banknotes P by 100 sheets
8 and a transport unit 27 that transports the banknote P from the stacking unit 28
a and a band winding portion 29 for binding the paper money P conveyed by the conveyance portion 27a with a paper band 30.

FIG. 2 is a perspective view showing the attitude correcting device 8, and FIG. 3 is a plan view thereof.

The attitude correction device 8 is provided on the base 31 with the first
And second correction units 32 and 33. Since the first and second correction units 32 and 33 have the same configuration, only the first correction unit 32 will be described.

The first correction section 32 has an inverted gate-shaped frame 34. In this frame 34, side plates 34a, 34a stand up at a position wider than the transport width of the bill P.
The shaft 35a of the drive roller 35 is bridged between the left and right side plates 34a, 34a of the frame 34. One end of the shaft 35a is held by a bearing 36, and a drive motor 38 is directly connected to the other end. The surface of the drive roller 35 is formed of rubber, and the friction coefficient is increased.
A rubber roller 39 is in contact with the upper side of the drive roller 35. The rubber roller 39 is rotatably held on a shaft 40 via a bearing 38. This axis 40 is the frame 3
4 are fitted in the long holes 41 of the left and right side plates 34a, 34a and urged downward by a spring 42. The rotation of the drive motor 38 rotates the drive roller 35 and the rubber roller 39, and the banknote P is firmly clamped and transported.

On the other hand, the portal frame 34 is supported on the upper end of a shaft 44 so as to be rotatable about a point 42 where the center line of the transport path and the axis of the roller intersect as viewed from above. Axis 4
4 is rotatably held by a housing 43. A servomotor 48 is connected to the lower end of the shaft 44 via a pulley 45, a belt 46 and a pulley 47.

Further, three transport belt pairs 49 for pinching and transporting the banknotes P are laid through the posture correcting device 8. The clamping forces 35 and 39 are set so as to be stronger.

At the entrance side of the attitude correcting device 8, bills P
A transmission type optical sensor array 53 that optically detects the bill is provided, and a sensor 54 that is located at the center of the transport path and optically detects the bill is provided near the second correction unit 33. .

FIG. 4 shows the posture of the bill P taken out from the bill supply unit 2.

That is, since the size of the banknotes P, bills, and the like differs depending on the face value, when they are set in the bill supply unit 2 at a time, even if they are aligned by hand, the small bills have the maximum size. There is a high possibility that they are buried inside and are left or right misaligned or skewed.

That is, a medium-sized ticket (hereinafter referred to as FR) which is turned upside down has a small left and right displacement,
Right skew. A ticket (hereinafter referred to as BF) which is a back face following the FR ticket and whose orientation is normal is shifted to the left and skewed to the left. In addition, a ticket (hereinafter, referred to as BR) that is reverse to the upside-down direction following the BF ticket.
There is no skew and no displacement. It should be noted that a ticket to be taken out after the BR ticket is a front-facing one with a normal orientation and is called an FF ticket.

FIG. 5 is a block diagram showing a drive control system of the attitude correction device 8.

Transmission type optical sensor array 53 and sensor 54
Further, the counter 57 is connected to the control unit 5 via a signal transmission circuit.
5 and the control means 55 is connected to the first through a control circuit.
And the second correction units 32 and 33 are connected. The operation of the first and second correction units 32 and 33 is controlled by the control unit 55 in accordance with the bill detection signals of the optical sensor array 53 and the sensor 54, and the posture of the bill is corrected.

When the counter 57 counts the number of passing banknotes by a predetermined number, for example, 500, the control means 55 operates the first correction unit 32 to shift the banknotes from the transport center line by ΔSmm. Is displaced by ± 5 mm.

FIG. 6 is a plan view showing a posture correction operation of a bill.

The attitude of the banknote P sent to the attitude correction device 8 is detected by the transmission type optical sensor array 53, and the positional deviation ΔSmm from the transport center line and the skew angle θ1 are calculated from the detection result. Next, assuming that the width of the banknote P is L, θ2 that tan θ2 = △ S / L is calculated. Then, the servo motor 48 is rotationally driven so as to rotate the first correction roller 32 in the direction of the arrow by the angle of θ2. Accordingly, the banknote P is moved in a direction shifted by the angle θ2 with respect to the transport direction by the rotation of the first correction roller 32 while maintaining the skew angle, and the positional deviation is corrected.

Next, when the leading end of the bill P passes through the sensor 54, the second correction unit 33 takes a predetermined timing.
Is rotated in the direction of the arrow by the angle θ1. Thereby, the banknote P is nipped and conveyed by the rotation of the rollers 35 and 39, and the skew is corrected.

In the case of a banknote P having no skew or misalignment, as shown in FIG.
It is conveyed to the next discriminating unit 9 while keeping the correct posture without rotating the second and the third.

By this posture correction, the banknote P is conveyed to the discriminating section 9 without any skew or shift.
Information obtained from the ticket is stable,
The determination logic calculation of the front and back is easy.

7 to 10 show the transport paths a to d of the banknote P.
FIG. 11 is a block diagram showing a control system for selectively setting the transport paths a to d.

As shown in FIG. 11, the discriminator 9 and the counter 57 are connected to the control means 51 via an information transmission circuit.
The control means 51 is provided with a branching device 11, 1 via a control circuit.
3, 18 are connected. The branching devices 11, 13, and 18 are operated by the control unit 51 in accordance with the discrimination information of the discriminating unit 9, and the transport routes a to d are selectively set.

That is, when the discrimination section 9 determines that the banknote P is an FF ticket, the transport path a shown in FIG. 7 is set, and when the banknote P is determined to be an FR ticket, FIG.
Is set, and when the direction of the bill P is determined to be a BF ticket, the transfer path c illustrated in FIG. 9 is set, and when the bill P is determined to be a BR ticket, Is set such that a transport route d shown in FIG. 10 is set.

The banknote P passes through the switchback path 19 in the transport path a in FIG. 7, the banknote P passes through the left / right inversion path 14 in the transport path b in FIG. After passing through the reversing path 14 and the switch grasshopper path 19, the banknotes pass through the reversing path 14
And the switch grass path 19 is not passed through.

When the banknote P enters the horizontal transport path 24 by passing through any of the above-described transport paths a to d, the front and back sides and the top and bottom are all aligned. Therefore, in the type-specific pockets 26a to 26d, the banknotes are stacked in a horizontal state with the front and back and top and bottom aligned by type, and the paper band 30 is wound around the banknote with the front and back and top and bottom aligned in the 100-sheet sealing device 27. Can be done.

In contrast to the basic control method for front / back and top / bottom alignment as described above, the present invention has first and second modes A and B for front / back and top / bottom alignment as shown in Table 1 below. The first and second modes A and B are switched by the control means 51 every time the counter 57 counts a predetermined number of banknotes P, for example, 500.

[Table 1]

When the first mode A is set, the FF ticket has the first transport route a, the FR ticket has the second transport route b, the BF ticket has the third transport route c, and the BR ticket has the fourth transport route c. The sheet is transported along the transport path d.

When the second mode B is set, F
The F ticket has the second transport route b, the FR ticket has the first transport route a,
The BF ticket is the fourth transport route d, and the BR ticket is the third transport route c
Is transported along.

When the bills P are transported and accumulated in the first and second modes A and B, the bills P are turned upside down as shown in FIG. Mode B
Then, the left and right directions of the banknote P are reversed.

FIG. 12 is a flow chart showing the sorting and stacking operation of bills.

When a start switch (not shown) is pressed while a plurality of bills P are set in the bill supply unit 2, the first mode A is set and the counter 5 is set.
7 is set to n = 0 (step S1). Thereafter, the feeding roller 5 is rotated and the banknote P is
Are fed out one by one. The fed-out banknote P is nipped and conveyed by the conveyor belt pair 49, and the skew or displacement thereof is corrected by the first and second correction units 32 and 33 during the conveyance. After this correction, the discriminating unit 9 discriminates the denomination of the banknote P, its front and back sides, the direction of the top and bottom, and the like (step S2).

When the denomination is determined to be K1, for example,
It is determined whether the mode is the first mode A (step S3). When it is determined that the mode is the first mode A, the number of banknotes of the denomination K1 that has passed is counted by the counter 57 (step S4). Next, it is determined whether or not the counted number is greater than 500 (step S5). If it is determined that the counted number is greater than 500, the mode is set to the second mode B (step S6), and the counter 57 is set to n = 0 (step S7). Thereafter, the number of passed banknotes is counted again by the counter 57 (step S8), and it is determined whether or not the counted number is greater than 500 (step S9). If it is determined that the number of sheets passed is greater than 500, the first mode A is set (step S10), and the counter 57 is set to n = 0 (step S10).
11). Thereafter, the same operation is sequentially repeated, and the bills are sorted and accumulated in the pockets 26a.

When the denomination is K2 or K3, the money is accumulated in the pockets 26b and 26c by the same operation.

By repeating the above control operation,
As shown in FIG. 14, the stacked banknotes P are turned left and right every 500 sheets. As a result, the difference between the thicknesses of the bills P on the left and right sides is absorbed, and the heights on the left and right sides are aligned.
Accordingly, the height of the banknotes P is not uneven due to the stacking and stacking of the banknotes P, the collapse of the stacking of the banknotes P can be prevented, and the efficiency of the banknote sorting operation can be improved.

In the above-described embodiment, a case has been described in which bills having a difference in height between the left and right sides of the paper are stacked. However, bills having a difference in thickness in the vertical direction of the paper are alternately arranged. What is necessary is just to change the direction of up and down, and for that, it is only necessary to change the tables of the first mode A and the second mode B described above.

In the above-described embodiment, the mode is changed to 500 sheets. However, the number of changed sheets is not limited to 500 sheets. Changing this number according to the total integrated capacity is within the scope of application. It is.

Further, the present invention provides a method for making the portion where the first and second modes A and B are switched easily understandable.
At the same time as the mode is changed, the bill is shifted from the transport center line.
mm is controlled by the posture correction device 8 to △ S + 5 mm,
Control for switching to ΔS−5 mm may be performed.

With this control, as shown in FIG. 15, the banknotes P are shifted to the left and right every 500 sheets, so that it is easy to distinguish the divisions when the banknotes P are taken out. So, for example,
For example, when the bundled banknotes are manually bound by 500 sheets, it is not necessary for the operator to count the number of banknotes.
Work efficiency can be improved.

Further, the same effect as described above can be obtained even if this bill is shifted in the left-right direction only once every 500 bills as shown in FIG.

Next, a second embodiment of the present invention will be described with reference to FIGS.

The thickness of the banknote P as a sheet (the printing section P
a) The distribution is not only in the horizontal direction as shown in FIG.
As shown in FIG. 19, it also exists in the vertical direction. That is, the bill P has a difference in thickness between the right half and the left half,
There may be a difference in the thickness of the upper half and the lower half. When the thickness in the left-right direction is different, the stacking thickness can be made uniform by alternately switching the left-right direction each time a predetermined number of banknotes P are stacked. When the thickness in the vertical direction is different, the stacking thickness can be made uniform by alternately switching the vertical direction each time a predetermined number (500) of banknotes P are stacked.

By the way, the above-mentioned thickness distribution of the bill P is determined by the kind (denomination) of the bill P. Therefore, it is possible to determine an appropriate accumulation switching method according to the denomination determined by the determination unit 9. Depending on the method of post-processing of the stacked banknotes P, the banknotes P may be stacked without switching between front and back as shown in FIGS. 18 and 20.

In order to realize the switching of banknote accumulation by the denomination, a table as shown in Table 2 below is provided.
The control of the reversing mechanism is performed according to the flowchart shown in FIG.

[Table 2]

The vertical and horizontal distribution patterns (a) and (b) of the thickness according to the denomination of the bill are set in the table of Table 2 in advance. In the table of Table 2, the operation pattern 1 of the switching devices 11, 13, and 18 in the first mode A is set, and in the second mode B, the vertical distribution and the horizontal distribution patterns (a), (b) Operation patterns 2, 3, and 3 of the switching devices 11, 13, and 18 corresponding to (b)
4, 5 are set.

Next, the switching operation of the bill stacking direction in the second mode B will be described with reference to the flowchart of FIG.

When the bill P is sent to the discriminating section 9, its denomination and direction are discriminated and a discrimination result is obtained (step S21). Thereafter, the vertical / horizontal distribution table corresponding to the denomination is referred to (step S22). Next, it is determined whether or not the table value is 0 (step S23). If it is determined that the table value is 0, the vertical distribution operation pattern 2 (or 3) of the switching pattern table is selected (step S24). Next, the operation content corresponding to the direction of the bill is obtained from the switching pattern table (step S25). Thereafter, it is determined whether or not the banknote P should be passed through the switchback path 19 (step S26). If it is determined that the bill should be passed through the switchback path 19, the switchback reversal operation of the bill is performed in the switchback path 19 (step S27). Next, it is determined whether or not the bill should be passed through the twist belt 15 (Step S28). When it is determined that the bill should be passed through the twist belt 15, the bill is reversed by the twist belt 15 (step S29). If it is determined in step 23 that the table value is not 0, the left-right distribution operation pattern 4 (or 5) of the switching pattern table is selected, and the operation after step S25 is performed.

According to this embodiment, the pattern of the vertical distribution and the horizontal distribution of the thickness according to the denomination of the banknote is set in advance, and the pattern of the vertical distribution and the horizontal distribution is discriminated by discriminating the denomination. Since the operation pattern of the branching devices 11, 13, and 18 corresponding to the determined thickness distribution pattern is selected, the operation pattern can be selected without specially reading and determining the thickness distribution pattern of the bill, and processing efficiency. There is an advantage that can be improved.

[0070]

As described above, the present invention operates the switching means to change the transport path each time a predetermined number of sheets are stacked in the stacking section, thereby enabling the subsequent stacking in the stacking section. Since the direction of the paper sheet is reversed with respect to the already stacked paper sheet, the unevenness of the height due to the stacking of the paper sheet is eliminated. Therefore, it is possible to prevent the collapse of the stack of stacked sheets, and to improve the efficiency of the sheet sorting operation.

Further, every time a predetermined number of sheets are stacked in the stacking section, the stacking position of subsequent sheets stacked in the stacking section is shifted with respect to the already stacked sheets. It is possible to sort a predetermined number of stacked paper sheets without counting the stacked paper sheets one by one as in the case of, for example, to reduce the work efficiency when manually binding a predetermined number of paper sheets. Can be improved.

Further, a thickness distribution pattern corresponding to the type of paper sheet is set in advance, the thickness distribution pattern is determined by determining the type of paper sheet, and the branching device corresponding to the determined distribution pattern is determined. Since the operation pattern is selected, the operation pattern can be selected without specially reading and discriminating the thickness distribution pattern of the sheet, and the processing efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is an internal configuration diagram showing a banknote sorting and organizing apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a posture correcting device for correcting the posture of a bill.

FIG. 3 is a plan view showing a posture correction device.

FIG. 4 is a perspective view showing a transport state of a bill.

FIG. 5 is a block diagram showing a drive control system of the attitude correction device.

FIG. 6 is a plan view showing a posture correction operation.

FIG. 7 is a diagram showing a first transport route of bills.

FIG. 8 is a diagram showing a second transport route for bills.

FIG. 9 is a diagram illustrating a third transport route for bills.

FIG. 10 is a diagram showing a fourth transport route for bills.

FIG. 11 is a block diagram showing a control system for setting a transport route.

FIG. 12 is a flowchart showing the sorting and stacking operation of bills.

FIG. 13 is a perspective view showing the direction of bills conveyed and accumulated in the first and second modes.

FIG. 14 is a front view showing a state in which banknotes conveyed and stacked in the first and second modes are stacked;

FIG. 15 is a front view showing a state in which bills are displaced in the plane direction and accumulated every time a predetermined number of bills are accumulated.

FIG. 16 is a front view showing a state in which the banknotes are stacked by being displaced in the direction of one sheet each time a predetermined number of banknotes are stacked.

FIG. 17 is a diagram illustrating a left and right switching state of a bill having a thickness distribution on the left and right according to the second embodiment of the present invention.

FIG. 18 is a diagram showing a left-right and front-back switching state of a bill having a thickness distribution on the left and right.

FIG. 19 is a diagram illustrating a state in which bills having a thickness distribution above and below are switched up and down.

FIG. 20 is a diagram illustrating a switching state of a top and bottom and front and back of a bill having a thickness distribution in the top and bottom.

FIG. 21 is a flowchart illustrating a stacking direction switching operation of banknotes.

[Explanation of symbols]

P: banknotes (sheets), H: transport means, 8: posture correction device, 9: determination unit (determination means), ad: transport path, 1
1, 13, 18: branching device (switching means), 14: left / right inversion path 14, 19: switchback path 19, 26a-
26d pocket (accumulation section), 51 control means, 55
Control means.

Claims (9)

[Claims] A transport unit that transports the paper sheet; a determination unit that determines the direction of the front and back and the top and bottom of the paper sheet transported by the transport unit; and the paper sheet according to a determination result of the determination unit. Switching means for changing the direction of the paper sheets in a predetermined direction by switching the transport path of the paper sheets, a stacking unit for stacking the paper sheets whose direction has been changed by the switching means, and Each time a predetermined number of sheets are stacked, the switching unit is operated to change the transport path, so that the direction of the subsequent sheets to be stacked in the stacking unit is already stacked. And a control means for changing the direction of the paper sheet in the opposite direction. 2. The apparatus according to claim 1, wherein a left-right reversing path unit for changing the left and right direction of the sheet and a switchback path unit for changing the top and bottom direction of the sheet are provided on the transport path. The paper sheet processing apparatus according to claim 1. 3. The conveyance path includes a first path through which the sheet passes through the switchback path, a second path through the left / right inversion path, the left / right inversion path, and a switchback. 3. The sheet processing apparatus according to claim 2, comprising a third path that passes through a path section, and a fourth path that does not pass through the left-right reversing path section and the switchback path section. 4. When the sheets are face up and the orientation of the sheet is normal, the sheet is conveyed along the first path, and after a predetermined number of sheets are accumulated in an accumulation unit, the second path is 4. The sheet processing apparatus according to claim 3, wherein the sheet is conveyed after being switched. 5. When the paper sheets are facing up and the orientation of the paper sheets is upside down, the paper sheets are conveyed along the second path, and after a predetermined number of paper sheets are stacked in the stacking section, the first sheet is stacked. The sheet processing apparatus according to claim 3, wherein the sheet is transported after being switched to a path. 6. When the paper sheets are facing backward and the orientation of the paper sheets is normal, the paper sheets are conveyed along the third path, and after a predetermined number of paper sheets have been stacked in the stacking section, the fourth sheet is stacked. The sheet processing apparatus according to claim 3, wherein the sheet is transported after being switched to a path. 7. When the paper sheets are facing backward and the orientation of the paper sheets is upside down, the paper sheets are conveyed along the fourth path, and after a predetermined number of paper sheets are stacked in the stacking section, the third sheet is stacked. The sheet processing apparatus according to claim 3, wherein the sheet is conveyed after being switched to a second path. 8. A conveying means for conveying the paper sheet, an attitude correcting means for correcting the attitude of the paper sheet conveyed by the conveying means to a predetermined attitude, and an attitude corrected by the attitude correcting means. Determining means for determining the direction of the front and back and top and bottom of the paper sheet; and switching means for changing the direction of the paper sheet to a predetermined direction by switching the transport path of the paper sheet according to the determination result of the determining means. A stacking unit for stacking the paper sheets whose direction has been changed by the switching unit; and operating the switching unit to change the transport path each time a predetermined number of the paper sheets are stacked in the stacking unit. A first control unit that changes the direction of subsequent sheets to be stacked in the stacking unit in a direction opposite to the direction of the already stacked sheets; Each time a number of sheets are accumulated, the posture correction By operating the steps to change the transport position of the paper sheets, the paper sheets to be stacked in the stacking unit or the predetermined number of subsequent sheets are already stacked in the stacking unit. And a second control means for deviating in a plane direction by a predetermined amount with respect to the sheet processing apparatus. 9. A conveying means for conveying a sheet, a discriminating means for discriminating the type of the sheet conveyed by the conveying means and discriminating the orientation of the sheet, Switching means for changing the direction of the paper sheet in a predetermined direction by switching the conveyance path of the paper sheet according to the direction of the paper sheet; A stacking unit to be stacked, a thickness distribution pattern of the paper sheets set in advance according to the type of the paper sheet, an operation pattern of the switching unit set corresponding to the thickness distribution pattern, Each time a predetermined number of the sheets are stacked on the stacking unit, the thickness distribution pattern is determined according to the determination result of the type of the sheet, and the operation pattern corresponding to the thickness pattern is selected. Based on this operation pattern Operating means for changing the transport path by operating the switching means, thereby changing the direction of subsequent sheets to be stacked in the stacking unit in a direction opposite to the direction of already stacked sheets. And a sheet processing apparatus comprising: