JP2002312828A - Paper sheet processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper sheet processor which can correct the conveyance attitude of paper sheets taken out onto a conveyance path and prevent various troubles due to wrong attitudes. SOLUTION: A receiving and paying machine 1 after carrying a bill P thrown in through a throw-in part along a conveyance path and correcting its conveyance attitude through an attitude correction part 10 sends the bill in a detection part. The attitude correcting device 10 places 1st and 2nd correction parts 32 and 33 in operation to correct the conveyance attitude of the bill detected through an attitude detection sensor 70 to a reference attitude. Then the conveyance attitude of the bill P is detected again through an attitude detection sensor 80 arranged nearby the entrance of the detection part and the correcting operation quantity of the attitude correction part 10 is brought under feedback control based upon the detection result.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet processing apparatus for taking out a sheet on a conveying path, conveying the sheet, and processing the sheet.
In particular, the present invention relates to a deposit processing machine that takes out and transports a plurality of bills one by one on a transport path, transports the bills, and aligns the front and back sides and the top and bottom of the bills by denomination.

[0002]

2. Description of the Related Art Conventionally, as a sheet processing apparatus, for example,
It is known that a banknote processing machine that mixes banknotes of a plurality of denominations, collectively inserts the banknotes, takes out the inserted banknotes one by one on a transport path, detects the characteristics thereof, aligns the front and back, top and bottom, and accumulates by denomination. I have.

[0003]

However, in the above-described conventional depositing machine, the conveying posture of the banknotes taken out on the conveying path is a posture (skew) inclined with respect to the conveying path and / or the width of the conveying path. In the case of a posture (shift) that is deviated in the direction, the banknote in such a poor posture will be conveyed through the conveyance path, and when the characteristics of the banknote are detected,
There have been problems such as various inconveniences such as upside down, upside down, and accumulation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to correct the conveyance posture of a paper sheet taken out on a conveyance path and to prevent various problems caused by the poor posture. An object of the present invention is to provide a processing device.

[0005]

In order to achieve the above object, a sheet processing apparatus according to the present invention comprises a take-out unit for taking out paper sheets on a conveying path, and a paper sheet taken out of the paper path by the taking-out unit. A transport unit that transports the leaves through the transport path, a first detection unit that detects the transport orientation of the paper sheet transported by the transport unit, and a first detection result obtained by the first detection unit. A posture correction unit that corrects the conveyance posture of the paper sheet so that the conveyance posture of the paper sheet becomes a preset reference posture, and a conveyance posture of the paper sheet that has passed through the posture correction unit. A second detection unit that detects the signal; and a control unit that performs feedback control on the correction operation of the posture correction unit based on a second detection result obtained by the second detection unit.

According to the above invention, the transport posture of the paper sheet taken out on the transport path is detected by the first detector, and the transport attitude of the paper sheet is corrected based on the first detection result. The transport posture of the paper sheet is detected via the second detector, and the second
The feedback control is performed on the correction operation in the posture correction unit based on the detection result of the above. For this reason, the deviation of the correction operation in the posture correction unit can be corrected, the correction operation in the posture correction unit can be reliably performed, and various problems due to the posture defect of the paper sheet can be prevented.

Further, the paper sheet processing apparatus of the present invention comprises: an input section for inputting a plurality of paper sheets as one processing unit at a time;
A take-out unit that takes out the paper sheets input through the input unit onto the conveyance path, a conveyance unit that conveys the paper sheets taken out onto the conveyance path by the extraction unit through the conveyance path, A first detection unit that detects the conveyance posture of the paper sheet conveyed by the unit, and a conveyance posture of the paper sheet based on a first detection result obtained by the first detection unit. A posture correction unit that corrects the conveyance posture of the paper sheet, a second detection unit that detects the conveyance posture of the paper sheet that has passed through the posture correction unit, and a second detection unit in the second detection unit. Based on the detection result, the amount of deviation of the transport posture of the paper sheet from the reference posture is calculated, and the statistics of the amount of deviation of the predetermined number of paper sheets in the one processing unit are obtained, and the average value thereof is calculated. A control unit that performs feedback control on the correction operation in the posture correction unit based on the That.

[0008]

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

FIG. 1 schematically shows the structure of a deposit processing machine 1 (sheet processing apparatus) according to an embodiment of the present invention. This deposit processing machine 1 mixes a plurality of banknotes P (sheets) of a plurality of denominations of different sizes and collectively inserts the same, and arranges the front and back and top and bottom of all the banknotes P in the same direction to make the money. This is for classifying and accumulating by type.

The depositing machine 1 is roughly divided into three parts, and has a bill processing unit 2, a teller machine 3, and a sealing unit 4. The teller machine 3 is a personal computer incorporating dedicated application software, and operates the banknote processing unit 2 and manages its operation. The teller machine 3 also has a monitor 3a (display unit) for the operator.
Is connected. The banding processor 4 binds 100 bills P of the same denomination processed by the bill processor 2 with a paper band to form a small handle.

The bill processing unit 2 has a substantially rectangular box-shaped casing 2a forming an outer shell. In the upper right part of the housing 2a in the figure,
An insertion unit 5 is provided for batch-injecting a plurality of banknotes P in a state where the short sides of the banknotes P are stacked in a plane direction.
The input unit 5 aligns the lower end sides of all the banknotes P along the longitudinal direction with the stage, and moves the backup plate (not shown) in the plane direction of the banknotes P along the stage to move the backup plate on the stage. The bill P at the left end in the figure is pressed against a pair of take-out rollers 5a (take-out part). A pair of take-out rollers 5 arranged vertically at the left end of the stage
When a rotates, the banknotes P on the stage are taken out onto the transport path 6 from the lower end in order from the leftmost one.

An attitude correction device 10 (attitude correction section), which will be described in detail later, is provided on the transport path 6 immediately after the loading section 5. The posture correcting device 10 is configured to control the position of each banknote P in order to prevent a bad posture of the banknote P, that is, a problem caused by a skew or a shift, in each processing unit provided on the transport path 6 on the downstream side of the posture correcting device 10. Correct skew and shift. In the present embodiment, a posture (reference posture) in which the center of the bill P taken out in the lateral direction is located on the center line 6a of the transport path 6 and the longitudinal end of the bill P is orthogonal to the center line 6a. In such a manner, the posture of each banknote P is corrected by the posture correcting device 10 such that

On the transport path 6 immediately after the attitude correcting device 10,
A detection unit 7 is provided for detecting the characteristics of the banknote P, such as the denomination, front and back, top and bottom, and presence or absence of dirt or damage. The detection unit 7 reads various information from the surface of the banknote P conveyed along the conveyance path 6, performs a logical operation on the read information and compares it with reference information, and detects the above-described characteristics of the banknote P. . still,
The detection unit 7 includes a posture detection sensor 80 described later near the entrance.

A plurality of gates G1 to G9 are provided on the transport path 6 downstream of the detector 7 for selectively switching the transport direction of the bill P based on the detection result of the detector 7.

A switchback mechanism 8 is provided on one of the transfer paths branched at the position of the gate G1 provided at the most upstream side. The switchback mechanism 8 functions to reverse the transport direction of the banknote P sent through the gate G1, reverse the top and bottom, and send it again to the transport path. The other transfer path branched at the position of the gate G1 is
Bypass transport path 8 for bypassing switchback mechanism 8
Functions as a. The bypass conveyance path 8a is set to have a length such that the banknote P passing through the switchback mechanism 8 via the gate G1 and the banknote P passing through the bypass conveyance path 8a reach the junction 9 at the same time interval. I have.

The bypass conveyance path 8a is branched to the rejection conveyance path 11a on the way to the junction 9, and a gate G2 is provided at this branch position. At the end of the rejection conveyance path 11a branched via the gate G2, a rejection unit 11 for rejecting banknotes P to be rejected is provided. The banknote P to be rejected was not determined by the detection unit 7 to be a banknote determined to take two sheets, a banknote determined to have greatly skewed beyond a predetermined level, or a reusable genuine note. It is a banknote, such as a banknote (not necessarily a banknote) such as a damaged banknote or a counterfeit banknote, for which it is determined that the processing in the subsequent processing unit is impossible. The reject unit 11 is disposed above the input unit 5 and is accessible from outside the housing 2a.

The transport path 6 downstream of the junction 9 is
The gate G3 is provided at this branch position. On one of the transport paths branched at the position of the gate G3, a front / back reversing mechanism 12 is provided. The front / back reversing mechanism 12 has a torsional conveyance path twisted by 180 ° around a central axis from the entrance to the exit. Then, as the bill P passes through the torsional transport path, the bill P is turned upside down. The other transport path branched at the position of the gate G3 functions as a bypass transport path 12a for bypassing the front / back inversion mechanism 12. The bypass transport path 12a has such a length that the banknotes P passing through the torsional transport path of the front / back reversing mechanism 12 via the gate G3 and the banknotes P passing through the bypass transport path 12a reach the junction 13 at the same time interval. Is set to

Further downstream of the junction 13 is a gate G4.
One of the transport paths branched in two directions at the position (1) functions as a horizontal transport path 14 extending substantially horizontally to the right in the figure. On the horizontal transport path 14, the remaining five gates G5 to G9 are provided at substantially equal intervals. Each gate G5, G6, G7, G8,
At the positions branched downward from the horizontal transport path 14 by G9, there are six stacking units 1 one more than the number of gates.
5a to 15f are provided respectively. Further, below the stacking units 15a to 15f, stackers 16a to 1c for receiving and storing the banknotes of the stacking unit 15 for which payment has been confirmed.
6f are provided in one-to-one correspondence.

The banknotes P passing through the merging section 13 are transferred to the switchback mechanism 8 and / or the front / back reversing mechanism 12 described above.
Are selectively passed through, and the orientations of the front and back and the top and bottom are aligned in a fixed direction.
Banknotes P stacked in 15f are stacked in a predetermined stacking unit with the front and back and top and bottom aligned.

The other transport path branched at the position of the gate G4 is led out of the banknote processing section 2 and extends to the above-described banding processing section 4. As described above, since the front and back and the top and bottom of the banknotes P that have passed through the merging unit 13 are aligned, the banding unit 4 applies the banknotes P of the same denomination with the front and back and the top and bottom aligned in the same direction. Only is sent.

The banding processing unit 4 includes a stacking unit 17 for stacking the fed banknotes P, and a banknote P stacked on the stacking unit 17 for one.
A banding section 18 for banding 00 sheets at a time and a banding section 1
8 has a band supply unit 19 for supplying a paper band to be used. The banknotes P stacked in the stacking unit 17 are sealed with a paper band every 100 sheets, and are carried out of the depositing machine 1 via a conveyor (not shown).

Next, the above-described posture correcting apparatus 10 will be described in detail with reference to FIGS. FIG. 2 is a perspective view showing a schematic configuration of the attitude correction device 10, and FIG. 3 is a sectional view of the attitude correction device 10.

The attitude correction device 10 is configured to move the first and second correction units 3 along the transport direction of the banknote P (the direction of arrow T in the figure).
2, 33. First and second correction units 32 and 33
Is mounted on a base plate 31 erected on the rear side of the apparatus along the transport path 6. First and second correction units 3
Since 2 and 33 have substantially the same configuration, here, the first correction unit 32 will be described as a representative, and the description of the second correction unit 33 will be omitted.

The first correction section 32 is a support frame 3 having a shape in which both ends of an elongated plate-like member are bent to the same side at substantially right angles.
4 That is, the support frame 34 is
, A frame base 34a longer than the width of the banknote P conveyed through the base plate, and two side plate parts 34b, 34b bent at substantially right angles from both sides of the frame base 34a
And

A drive shaft 35 extends between the two side plates 34b, 34b via bearings 36, 36.
Two rollers 37, 37 are attached to the drive shaft 35. The outer peripheral surfaces of these two rollers 37, 37 are formed of a rubber material in order to increase the frictional force. Above these two rubber rollers 37, 37,
Two corresponding rubber rollers 38 are in rolling contact with each other. The two rubber rollers 38 are attached to a shaft 40 via a bearing 39. Both ends of the shaft 40 are fitted into elongated holes 41 formed in the side plates 34b, 34b of the support frame 34, and are urged downward by springs 42 provided outside the side plates 34b, 34b. That is, the two rubber rollers 38, 38 are pressed by the corresponding two rubber rollers 37, 37, respectively, and these four rubber rollers 37, 38 function as the correction rollers 37, 38.

The correction rollers 37 and 38 are connected to three pairs of transport belts 4 extending through the attitude correction device 10 along the transport path 6.
Nested between 9a, 49b, 49c. That is, a pair of rollers 37, 38 on the front side of the apparatus.
Is disposed between the first and second conveyor belt pairs 49a and 49b, and the roller pair 37 and 38 on the rear side of the apparatus
And the third conveyor belt pair 49a, 49c.

Incidentally, three sets of transport belt pairs 49a, 49b,
49c extends over the entire length of the transport path 6 extending through the inside of the depositing machine 1, is opposed to sandwich the transport path 6 up and down, is wound around rollers (not shown), and is transported by the present invention. Functions as a unit.

More specifically, the first transport belt pair 49a at the center extends on the center line 6a of the transport path 6 on the upper surface side and the lower surface side of the transport path 6, and comes into contact with each other via the transport path 6. By doing so, the second and third transport belt pairs 49b, 4
The transport path 6 is defined up and down together with 9c. Further, two rollers 37, 37 of the correction rollers are disposed on the lower surface side of the transport path 6, and the other two rollers 38, 38 are disposed on the upper surface side of the transport path 6.
The transport path 6 is defined between the 38.

A bevel gear 50 is fixedly and coaxially mounted on a drive shaft 35 extending in a direction crossing the transport path 6 on the lower surface side of the transport path 6. The bevel gear 50 is provided between the two rollers 37, 37, and another bevel gear 51 is meshed. As shown in detail in FIG. 3, another bevel gear 51 is coaxially fixed to the upper end of a drive shaft 44 extending substantially vertically. The upper end of the drive shaft 44 faces the center of the drive shaft 35 having the roller 37.

The drive shaft 44 includes a cylindrical shaft 4 provided coaxially.
3, the upper bearing 52 and the lower bearing 5
3 rotatably held. Lower bearing 53
Is mounted inside a pulley 45 fixed to the cylindrical shaft 43. In addition, a pulley 64 is attached near the lower end of the drive shaft 44 via a one-way clutch 55. The rotating shaft of the stepping motor 54 is connected to the pulley 64 via a belt 62 and a pulley 63.

When the stepping motor 54 is driven to rotate, the pulley 63, the belt 62, and the pulley 6
The driving force is transmitted through the drive shaft 4 and the drive shaft 44 is rotated. The drive shaft 44 rotates only in one direction by the action of the one-way clutch 55. When the drive shaft 44 rotates in a predetermined direction, the bevel gear 51 attached to the upper end rotates, and the drive shaft 35 is rotated via the bevel gear 50. When the drive shaft 35 is rotated, the two rubber rollers 37, 37 are rotated, and the two rubber rollers 38, 38 pressed and rolled by the two rubber rollers 37, 37 are also driven to rotate. Thus, the four correction rollers 37, 3
When the roller 8 rotates, the banknote P is clamped in the two nips between the rollers and is conveyed along the conveyance path 6. The strength of the spring 42 is set such that the clamping force of the banknotes P by the correction rollers 37 and 38 of the posture correction device 10 is stronger than the clamping force of the banknotes P by the transport belts 49a to 49c.

On the other hand, the cylindrical shaft 43 is
It is rotatably held by a substantially cylindrical housing 56. The upper end of the cylindrical shaft 43 is formed by two screws 43a.
The support frame 34 is fixed to the center of the frame base 34a. Pulley 4 fixed to the lower end of cylindrical shaft 43
5 is connected to a rotating shaft of a stepping motor 48 via a belt 46 and a pulley 47. The housing 56 that holds the cylindrical shaft 43 rotatably is fixed to the base plate 31 via a substantially rectangular plate 58. The plate 58 is fixed to the base plate 31 in a cantilever state.

Further, the first correction unit 3 is provided on the base plate 31.
Sensor 5 for detecting home position 2 (correction reference)
9a is provided. The support frame 34 has a detection target 60 that shields the optical axis of the sensor 59a during its rotation.
Is protruding. That is, the detected object 60 is the sensor 59
By stopping the rotation of the first correction unit 32 when the optical axis a is interrupted, the first correction unit 32 is placed at the home position.

Further, a sensor 59a is provided on the base plate 31.
In addition, two sensors 59b and 59c (not shown) that detect the detection target 60 when the first correction unit 32 rotates by a predetermined angle in both directions from the home position are attached. These two sensors 59b and 59c are provided for detecting the swing-off position of the first correction unit 32. Note that these three sensors 59a, 59b, 59c
Is constituted by a photointerrupter or the like which is turned on and off by blocking the optical axis of the object 60.

When the stepping motor 48 is driven to rotate, the pulley 47, the belt 46, and the pulley 4
The driving force is transmitted through the shaft 5 and the cylindrical shaft 43 is rotated. When the cylindrical shaft 43 is rotated, the support frame 34 fixed to the upper end of the cylindrical shaft 43 is rotated,
Is rotated, and the directions of the correction rollers 37 and 38 are changed. The rotation position of the first correction unit 32 is adjusted to an arbitrary position by controlling the number of steps of the stepping motor 48 from the home position when the center sensor 59a detects the detection target 60, and from that position. It is supposed to be.

FIG. 4 is a block diagram of a control system for controlling the operation of the attitude correction device 10 described above.

The depositing machine 1 has a main control unit 100 (control unit) for controlling the operation of the entire processing machine. Main control unit 10
0, the teller control unit 10 that controls the teller machine 3
1, and a banding control unit 102 that controls the banding processing unit 4.

The main control unit 100 includes a bill processing unit 2
Posture correction control unit 10 for controlling the posture correction device 10 in the vehicle
3, and a reading control unit 104 for controlling the detection unit 7 are connected.

The posture correction control unit 103 includes a posture detection sensor 70 functioning as a first detection unit of the present invention for detecting the conveyance posture of the bill P sent to the posture correction device 10 via the conveyance path 6, The above-described sensors 59a, 59b for detecting the rotational positions of the second correction units 32, 33,
59c, for rotating the above-described stepping motor 54 for rotating the correction rollers 37, 38 of the first and second correction units 32, 33 in a predetermined direction, and for rotating the first and second correction units 32, 33 themselves. The above-mentioned stepping motor 48 is connected.

The reading control unit 104 includes, in addition to the various sensors of the detection unit 7 for detecting the characteristics of the bill P, the transport posture of the bill P sent to the detection unit 7 through the posture correction device 10 again. An attitude detection sensor 80 that functions as a second detection unit of the present invention for detection is connected.

Next, the operation of the posture correction device 10 configured as described above will be described with reference to FIG.
FIG. 5 is a schematic view of the attitude correction device 10 as viewed from above the transport path 6, and illustrates an attitude detection sensor 80 of the detection unit 7 in addition to the configuration of the attitude correction device 10.

As shown in FIG. 5, the feeding section 5
The banknote P taken out above is conveyed in the direction indicated by the arrow T in the figure while being pinched and restrained by the first to third conveyor belt pairs 49a to 49c, and passes through the conveyance path 6 to the posture correction device 10.
Are sequentially passed. Here, it is assumed that a skew θ1 and a shift ΔS of the degree indicated by a solid line in FIG.

When the banknote P is fed into the attitude correction device 10, the stepping motor 54 of the first correction unit 32 is driven, and the correction rollers 37 and 38 are transported by the conveyor belt pairs 49a to 49a-4.
It is rotated in the transport direction at a peripheral speed equal to the peripheral speed of 9c.

At this time, the conveying posture of the banknote P fed into the posture correcting device 10 is detected via a posture detecting sensor 70 disposed upstream of the first correction unit 32 in the conveying direction.

The attitude detecting sensor 70 and the attitude detecting sensor 80 of the detecting section 7 have a plurality of LEDs and photodiodes (not shown) each having an optical axis passing vertically through the transport path 6. The plurality of LEDs and the photodiodes are arranged in a line above and below the transport path 6 such that the passage positions at which the optical axes pass through the transport path 6 are aligned in a direction orthogonal to the transport direction T. LE
It functions as a D array and a photodiode array. Note that the posture detection sensor 70 on the upstream side in the transport direction is
2 so that the center line 6a of the transport path 6 is
Is divided into two parts.

The size of the banknote P, the amount of positional deviation of the center of the banknote P from the center line 6a of the transport path 6 in the width direction,
That is, the shift amount ΔS [mm] and the inclination amount in which the edge of the bill P along the longitudinal direction is shifted from the width direction orthogonal to the transport direction T, ie, the skew angle θ1 [°]
Is calculated.

At this time, when it is determined based on the detection result that the length of the bill P in the longitudinal direction is shorter than the kind of bill that can be processed by the apparatus, the bill P is folded or folded. It is determined that the bill is a broken one, and the posture correction for the bill P is not performed.
To eliminate.

Next, assuming that the length of the bill P in the lateral direction, ie, the width, is L [mm], θ2 is calculated as tan θ2 = Δs / L. Then, by the angle of θ2, FIG.
As shown by an arrow 71, the stepping motor 48 is rotationally driven so as to rotate the first correction unit 32. At this time, the cylindrical shaft 43 and the shaft 44 of the first correction unit 32
Rotate in the opposite direction, but the one-way clutch 55 idles, so that the rotation speed of the first correction unit 32 does not change.

When the banknote P is fed into the first correction section 32 in this state, the banknote P is conveyed while being pinched and restrained by the correction rollers 37 and 38. Correction roller 37,
The banknote P conveyed by the transport path 38
It is directed in a direction T ′ shifted by θ2 with respect to a. At this time, the banknote P is directed in the direction of the arrow T 'while maintaining the skew angle θ1, and only the displacement in the width direction is corrected.

Next, the timing at which the tip end of the bill P passing through the first correction unit 32 passes through the sensor 72, that is, the bill P is transferred to the correction rollers 37, 3 of the second correction unit 33,
At the timing of being pinched and restrained at 8, the second correction unit 33 is rotated by θ1 in the direction of the arrow 73 in the figure. As described above, the tilt of the banknote P is corrected by rotating the second correction unit 33 while the correction rollers 37 and 38 clamp the banknote P.

Through the above series of control operations, the banknote P whose shift and skew have been continuously corrected is conveyed to the downstream detection unit 7 as a banknote P in the correct posture whose conveyance posture has been corrected. Further, the banknote P sent to the posture correcting device 10
Of the bills P, which originally have no skew or shift, the first and second correction units 32 and 33 are not rotated,
It is conveyed to the immediately following detection unit 7 while maintaining the correct posture.
In the present embodiment, the correct posture is a posture in which one end side along the longitudinal direction of the bill P is orthogonal to the center line 6a of the transport path 6 and the center of the bill P is located on the center line 6a. To tell.

Further, the banknote P that has passed through the posture correction device 10 passes through a posture detection sensor 80 disposed near the entrance of the detection unit 7, and the conveyance posture thereof is detected again. This detection result is used for feedback control of the correction operation by the posture correction device 10 as described later.

By the way, the first and second correction units 32 and 33 of the above-described attitude correction device 10 are used when the deposit processing machine 1 is shipped or installed.
03 sets the home position as the rotation reference as follows. Note that the first and second correction units 32,
When the banknote P is passed through the posture correction device 10 in a state where 33 is set to the home position, the banknote P is passed through the posture correction device 10 while keeping the same state without changing the transport position and the angle. Will be.

Here, the operation of setting the first correction unit 32 to its home position will be described with reference to the flowchart of FIG. 6, and the second correction unit 33 that operates similarly will be described. Omitted.

First, the first correction unit 32 is rotated in an arbitrary direction, that is, in the first direction (step 1), and one of the optical axes of the sensors 59b and 59c in the rotation direction is set to the object to be detected. When the light is shielded by 60 (Step 2; YES), it is determined that the first correction unit 32 has been rotated to the swing-off position, and the rotation of the first correction unit 32 is stopped (Step 3). For example, when the direction of the arrow 71 in FIG.
When detected by 9c, the rotation of the first correction unit 32 is stopped.

Next, in the second direction opposite to the above-described first direction, that is, in the direction in which the end of the first correction unit 32 provided with the detection object 60 swings toward the home position. Is stopped by rotating the correction unit 32 by a predetermined angle (step 4). The predetermined angle is set to a posture in which the first correction unit 32 rotates parallel to the width direction orthogonal to the transport direction, that is, an angle at which the first correction unit 32 rotates beyond the home position at least from the swing-off position. The number is set to n pulses.

At this time, after the first correction unit 32 is rotated in the second direction, the detection target 60 is moved to the home position sensor 5.
Stepping motor 48 until detected by 9a
Are counted, and the number of pulses is recorded in a memory (not shown) (step 5).

Thereafter, the first correction section 32 is rotated and stopped in the first direction so as to be restored by n pulses in the first direction (step 6). At this point, the detection target 60 of the first correction unit 32 is detected again by the sensor 59c described above.

Then, steps 4 to 6 described above are performed.
Is repeated a preset number of times, and the number of pulses is recorded each time. When the preset number of times ends (step 7; YES), the average of the number of pulses recorded in the memory in step 5, that is, the average pulse Is calculated (step 8).

Finally, the first correction unit 32 in the state set at the swinging-off position in step 6 executes step 8
The first correction unit 32 is set to its home position by being rotated in the second direction by the average pulse calculated in (Step 9).

Next, the first and second correction units 32 and 33
Another method for setting the home position will be described with reference to FIGS.

Here, as shown in FIG.
A disk-shaped timing disk 81 is fixedly mounted on the rotation shafts of the stepping motors 2 and 33, and a photo interrupter 83 detects a notch 82 formed at a predetermined position on the circumference of the timing disk 81. The rotational position of the stepping motor 48 is detected, and the home positions of the first and second correction units 32 and 33 are detected. Here, it is not necessary to position the notch 82 of the timing disk 81 with high accuracy.

When setting the first and second correction units 32 and 33 to their home positions, first, the first correction unit 32 on the upstream side in the transport direction of the banknote P is manually set to its home position. (Step 1). At this time, the worker
The axis of the first correction unit 32 is set in a direction orthogonal to the transport direction using a holder or the like.

Next, the second correction unit 33 is rotated and stopped until the notch 82 of the timing disk 81 of the second correction unit 33 is detected by the photo interrupter 83 (step 2). At this time, since the position of the notch 82 is not positioned with high accuracy, the second correction unit 3
3 is not positioned at the home position with high accuracy, and the second correction unit 33 is set at the temporary home position.

In this state, a predetermined number of banknotes P for testing are set in the insertion section 5 (step 3).
By rotating a, one banknote P is picked up on the transport path 6 (step 4) and transported.

The banknote P taken out on the transport path 6 is detected in its transporting attitude via the attitude detecting sensor 70 of the attitude correcting device 10, and the detected transporting attitude is recorded in a memory (not shown) (step 5). ).

Thereafter, the banknote P is passed as it is without operating the first and second correction units 32 and 33 of the posture correction device 10, and the conveyance posture thereof is again determined via the posture detection sensor 80 of the detection unit 7. The detected conveyance posture is recorded in the memory (step 6). At this time, if the first and second correction units 32 and 33 are correctly set at their home positions, the detection result of step 5 and the detection result of step 6 are the same.

Then, the processing operations of Steps 4 to 6 are repeated until all the banknotes P set in the insertion section 5 in Step 3 are taken out (Step 7), and all the banknotes P are taken out and their postures are changed. After detection (Step 7;
NO), a difference between the conveyance postures of the banknotes P recorded before and after the posture correction device recorded in the memory is calculated, and an average value of the differences is calculated (step 8).

Further, based on the average value of the differences calculated in step 8, the second home position set at the temporary home position is determined.
Is rotated in the direction to correct the average value, and the number of pulses at that time is recorded in the memory (step 9).

In this state, the banknotes P for test are set again in the insertion section 5 (step 10), taken out and conveyed on the conveyance path 6 (step 11), and the posture detecting sensors 70 and 80 are set.
Detects the transport posture of the banknote P (step 12). At this time, the number of the test banknotes P may be one, and may be smaller than the number set in step 3 described above.

On the condition that the difference between the conveyance postures before and after the posture correction device 10 detected in step 12 is within a certain range (step 13; YES), the second
It is determined that the corrector 33 has been correctly set to its home position, and while the second corrector 33 is still set to this correct home position, the above-described steps 2 to 2 for the first corrector 32 are performed. The processing of step 13 is performed (step 14).

On the other hand, when the difference between the conveyance postures detected in step 12 is not within a certain range (step 1).
3; NO), it is determined that the second correction unit 33 has not been correctly set to the home position, and the process returns to step 1 and the setting operation is retried.

By the above-described series of operations, the first and second correction units 32 and 33 can be accurately set at their home positions. When the setting method described with reference to FIGS. 7 to 9 is adopted, the problem caused by the setting method described with reference to FIG. 6 can be prevented. That is, in the former method, the stepping motor 4
The home position is detected by detecting the notch 82 of the timing disk 81 attached to the rotation shaft 8 by the photointerrupter 83, which occurs when the first and second correction units 32 and 33 rotate. The influence of the brazing vibration can be reduced, and the detection accuracy can be improved. On the other hand, in the latter method, the first and second correction units 3
The first and second correction units 32, 3
The third method is easily affected by the vibration, and the detection accuracy cannot be improved as much as the former method.

Next, after the depositing machine 1 is installed at a predetermined place, the first and second correcting units 3 of the posture correcting device 10 are set.
A description will be given of a method of correcting the operation deviation when the operation deviation occurs with time in the devices 2 and 33. First and second
The cause of the temporal displacement of the correcting units 32 and 33 may be loosening of the belt 46 or step-out of the stepping motor 48.

In the first method, during the processing operation of the banknotes P by the depositing machine 1, the conveying postures of all the banknotes P are monitored via the posture detecting sensor 80 of the detecting section 7, and the reference posture of the conveying posture is changed. If the deviation amount (ie, the shift amount and / or the skew amount) exceeds a predetermined allowable value for a predetermined number of consecutive times, it is determined that the temporal deviation by the posture correction device 10 has occurred, and The operation of taking in the bill P by the roller 5a is temporarily interrupted to stop the operation of the depositing machine 1, and the first and second correction units 32 and 33 are set (initialized) to their home positions.

For example, when initializing the first correction unit 32 to its home position, first, the stepping motor 48 is rotated in one direction to set the three sensors 59a, 59b, 5
The detection target 60 is detected via one of the sensors 59b and 59c on both sides of the sensor 9c, and the stepping motor 48 is stopped. Thereby, the first correction unit 32 is set at the swing-off position.

Next, the stepping motor 48 is rotated in the reverse direction to rotate the first correction unit 32 so as to be parallel to the width direction orthogonal to the transport direction, and the center is detected via the central sensor 59a for detecting the home position. Then, the detection target 60 is detected, and the stepping motor 48 is stopped. Thereby, the first
Is initialized to the posture parallel to the width direction, that is, the home position.

The second correction unit 33 is similarly initialized to the home position. In the subsequent processing, the posture correction device 10 is operated with this position as the home position.

In the second method, the posture detection sensor 80 is used to set a predetermined number of banknotes P among a plurality of banknotes P in one processing unit (one batch), which are collectively input via the input unit 5. The deviation amount of the conveyance posture detected from the reference posture through the reference posture, that is, statistics of the shift amount and the skew amount is obtained. In this case, it is known that the deviation amount of the transport posture obtained by the statistics generally shows a normal distribution as shown in FIG.

In other words, even if it is intended to correct the transport attitude of all the banknotes P to the reference attitude via the attitude correcting apparatus 10, variations in components of the attitude correcting apparatus 10, variations in control operation, variations in attitude detection accuracy, etc. However, the transport attitude of all the banknotes P is not accurately corrected to the reference attitude, and the amount of deviation of the transport attitude indicates a normal distribution with zero at the reference attitude at the top.

If the first and second correction units 32 and 33 of the attitude correction device 10 have the above-mentioned temporal displacement, for example, as shown in FIG. That is, the peak of the normal distribution of the deviation amount obtained by the statistics is shifted by L from the zero point having no deviation. Thus, in the second method, as shown in FIG. 10B, the first and / or second signals are set so that the shift L is set to zero.
The correction amounts in the correction units 32 and 33 are adjusted.

The adjustment of the correction amount may be made at the time of processing the banknotes P in the same batch, or may be made at the time of processing the banknotes P of the next batch input through the input unit 5. In general, it takes a lot of time to calculate the deviation L of the normal distribution peak by obtaining the statistics of the deviation amount of the transporting posture. Therefore, the deviation L of the normal distribution peak of the deviation amount obtained in the previous batch is calculated. , The correction amounts of the first and second correction units 32 and 33 are adjusted at the time of processing the next batch. It should be noted that the normal distribution of the deviation amount obtained by the statistics in the second method is displayed to the operator via the monitor 3a of the teller machine 3.

As described above, according to the present invention, the transport path 6
Since the posture correcting device 10 for correcting the conveying posture of the banknote P taken out is provided immediately after the loading unit 5, the conveying posture of the banknote P taken out on the conveying path 6 can be stabilized, and the posture of the banknote P can be stabilized. Various problems caused by the defect can be prevented.

According to the present invention, the first and second posture correcting devices 10 are used when the depositing machine 1 is shipped or installed.
Is set to its home position, and the time-dependent operation deviation of the first and second correction units 32 and 33 is corrected as described above, so that the posture correction device 10 always operates normally. The transport path 6
The transport posture of the banknote P taken out above can always be corrected to the reference posture.

The present invention is not limited to the above-described embodiment, but can be variously modified within the scope of the present invention.

[0086]

As described above, the paper sheet processing apparatus of the present invention has the above-described configuration and operation, and can correct the transport posture of the paper sheet taken out on the transport path. Various inconveniences caused by the poor posture can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a structure of a deposit processing machine according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a schematic configuration of a posture correction device incorporated in the depositing machine of FIG. 1;

FIG. 3 is a cross-sectional view of the posture correction device of FIG.

FIG. 4 is a block diagram of a control system that controls the operation of the posture correction device of FIG. 2;

FIG. 5 is an operation explanatory diagram for explaining a posture correction operation by the posture correction device of FIG. 2;

FIG. 6 is a flowchart for explaining a method of setting the first and second correction units of the attitude correction device to a home position at the time of shipping the deposit processing machine of FIG. 1;

FIG. 7 is a view for explaining another mechanism for detecting the home position of the first and second correction units.

8 is a flowchart for explaining another method for setting the first and second correction units to the home position using the mechanism of FIG. 7;

FIG. 9 is a flowchart for explaining another method together with FIG. 8;

FIG. 10 is a graph showing a distribution of a deviation amount when statistics of a conveyance posture are obtained by a posture detection sensor.

[Explanation of symbols]

1. Deposit processing machine, 2. Bill processing unit, 3. Teller machine,
3a: monitor, 4: banding section, 5: loading section, 6: transport path, 7: detecting section, 10: attitude correcting device, 32: first correcting section, 33: second correcting section, 37, 38: correction roller,
48 ... Stepping motor, 59a, 59b, 59c ...
Sensors, 70, 80: posture detection sensor, 100: main control unit, P: bill.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigemi Kawamura 70 Yanagicho, Saiwai-ku, Kawasaki City, Kanagawa Prefecture Inside the Toshiba Yanagicho Works Co., Ltd. In-house (72) Inventor Tetsuo Watanabe 70-Yanagicho, Saiwai-ku, Kawasaki-shi, Kanagawa F-term in Toshiba Yanagicho Office (Reference) 3E040 AA01 DA08 FG11 FG15 FG17 3E041 AA02 DA01 DB04 EA05 3F079 AA06 BA07 BA13 BA15 CA12 CB32 CB32 CC06 CC11 CC13 DA12 DA28 EA01 EA08 EA14 EA16 EA19 3F102 AA15 AB03 BA02 BB04 BB12 CA03

Claims (12)

[Claims] 1. A take-out unit for taking out paper sheets on a conveyance path, a conveyance unit for conveying the paper sheets taken out on a conveyance path by the take-out unit, and a conveyance unit for conveying the paper sheets via the conveyance path. A first detection unit that detects the conveyance posture of the paper sheet to be performed, based on a first detection result by the first detection unit, so that the conveyance posture of the paper sheet becomes a preset reference posture. A posture correction unit that corrects the conveyance posture of the paper sheet, a second detection unit that detects the conveyance posture of the paper sheet that has passed through the posture correction unit, and a second detection result obtained by the second detection unit. And a control unit for performing feedback control on the correction operation in the posture correction unit. 2. The method according to claim 1, wherein the control unit is configured to determine that the conveyance posture of the sheet detected via the second detection unit deviates from the reference posture by more than a predetermined amount continuously for a predetermined number of times. 2. The paper sheet processing apparatus according to claim 1, wherein the paper removal by the removal unit is temporarily stopped, and a correction reference in the posture correction unit is initialized. 3. The control unit, based on a condition that the conveyance posture of the sheet detected via the second detection unit deviates from the reference posture by a certain amount or more, based on the deviation amount. The sheet processing apparatus according to claim 1, wherein a correction amount in the posture correction unit is adjusted. 4. The control unit obtains statistics on a predetermined number of sheets of the amount of deviation of the conveyance posture detected from the reference posture through the second detection unit, based on an average value thereof. 2. The sheet processing apparatus according to claim 1, wherein feedback control is performed on the correction operation in the posture correction unit. 5. The sheet processing apparatus according to claim 4, further comprising a display unit for displaying statistics of the deviation amount. 6. The reference posture is a posture in which the center of the paper sheet is located on the center line of the transport path, and one end along the longitudinal direction of the paper sheet is orthogonal to the center line. The sheet processing apparatus according to any one of claims 1 to 4, wherein: 7. The displacement amount includes an inclination amount of the one end side with respect to a width direction orthogonal to the center line, and a positional displacement amount of the center of the paper sheet with respect to the center line in the width direction. The sheet processing apparatus according to claim 6, wherein: 8. An input unit for collectively inputting a plurality of sheets as one processing unit, an output unit for extracting sheets input via the input unit onto a transport path, and A transport unit that transports the paper sheets taken out on the transport path via the transport path, a first detection unit that detects the transport attitude of the paper sheets transported by the transport unit, and a first detection unit Based on the first detection result, the posture correction unit that corrects the conveyance posture of the paper sheet so that the conveyance posture of the paper sheet becomes a preset reference posture, and passes through the posture correction unit. A second detection unit that detects the conveyance posture of the paper sheet, and calculates a shift amount of the conveyance posture of the paper sheet from the reference posture based on a second detection result obtained by the second detection unit.
A control unit that obtains statistics of the deviation amount of a predetermined number of sheets in the one processing unit and performs feedback control on a correction operation in the posture correction unit based on an average value thereof. A paper sheet processing apparatus characterized by the above-mentioned. 9. The sheet processing apparatus according to claim 8, further comprising a display unit for displaying statistics of the deviation amount. 10. The control unit according to claim 1, wherein the control unit performs feedback control on a correction operation of the posture correction unit when processing a plurality of sheets as a next processing unit based on the average value of the shift amounts. The sheet processing apparatus according to claim 8, wherein: 11. The reference posture is a posture in which the center of the paper sheet is located on the center line of the transport path and one end of the paper sheet along the longitudinal direction is orthogonal to the center line. The paper sheet processing apparatus according to claim 8, wherein 12. The deviation amount includes an inclination amount of the one end side with respect to a width direction orthogonal to the center line, and a positional deviation amount of the center of the paper sheet with respect to the center line in the width direction. The sheet processing apparatus according to claim 11, wherein: