JPH06305606A - Transferring device - Google Patents

Abstract

PURPOSE:To provide a transferring device, in which inclination, transferring interval, or transferring position of a bill or the like to be transferred is adjustable so as to reduce the nonconformity of the device and to remarkably improve the performance of the device. CONSTITUTION:In a transferring device, a bill is held by driving belts 2a, 2b and driven belts 1a, 1b at its both ends so as to be transferred in the arrow- marked direction. In the first portion of the transferring device, sensors 3, 4 are juxtaposed at a prescribed interval and in the direction perpendicular to the transferring direction of the bill, while line-CCDs 5a, 5b are arranged at both ends of a bill transferring passage. The sensors 3, 4 and the line CCDs 5a, 5b detect the bill transferred. Based on the inclination and the transferring interval of the bill at the positions of each sensor 3 and 4, which are measured and outputted as a signal by the sensors 3, 4 and on the transferring position of the bill, which is detected by the line CCDs 5a, 5b, a control part controls the revolving speed of step motors 7a, 7b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a bill processing apparatus for sorting bills by denomination and counting them.
The present invention relates to a conveying device that conveys sheets one by one.

[0002]

2. Description of the Related Art For example, a banknote processing apparatus for sorting banknotes by denomination and counting the banknotes is fed out one by one, and the banknotes stacked in a banknote supply section for feeding out the banknotes are conveyed on a banknote conveyance path. After the denomination, the damage, the front and back, etc. are discriminated by the inspection department provided, it is sorted into the denomination by the allocating unit, and each is counted and stored in the collection unit by denomination, damage, front and back. ing.

However, the banknotes to be separated and conveyed one by one in the banknote supply section are inclined, the intervals are narrowed, or the banknotes are misaligned in the conveyance direction (left or right). When there is a conveyance failure such as a deviation to one side), it often becomes impossible to discriminate in the inspection section, a sorting error in the sorting section, and a stacking failure in the stacking section. As a result, the banknote processing apparatus is stopped, the cause of the failure is removed, and the processing is performed again, which hinders efficient operation.

Conventionally, in order to reduce these problems,
By adjusting the bill supply unit delicately, the inclination and the gap were kept to a certain level, but due to the subtle difference in frictional force between bills and the variation in frictional force of the conveyor belt made of rubber, The problem caused by the bill transport state could not be essentially solved.

Further, since the banknote processing apparatus used in ATM and the like is of a circulation type in which deposited banknotes are used for withdrawal, the stacking direction is taken out again by taking out the stacked banknotes again. It was not possible to eliminate the misalignment of the banknote transport position in the direction parallel to.

[0006]

As described above, the inclination of bills separated and conveyed one by one in the bill supply unit is controlled to a certain level by fine adjustment of the bill supply unit. However, due to subtle differences in the frictional force between banknotes and variations in the frictional force of the conveyor belt made of rubber, banknotes may be skewed, the intervals between banknotes may be clogged, or banknotes may be misaligned. However, there is a problem in that the performance of the device is deteriorated.

Therefore, according to the present invention, it is possible to adjust the inclination of paper sheets to be conveyed, the conveyance interval, or the conveyance position.
It is an object of the present invention to provide a carrier device in which the malfunctions of the device are reduced and the performance of the device is significantly improved.

[0008]

SUMMARY OF THE INVENTION A conveying device of the present invention is provided at both ends of a conveying path for conveying paper sheets, and a detecting means for detecting a conveying position of the conveyed paper sheets, and this detecting means. Transporting means for supporting and transporting both ends of the paper sheet detected by means, at least two or more transporting means arranged side by side at predetermined intervals, motors for driving the transporting means, and the detecting means. And a control unit that controls the rotation speeds of the motors based on the conveyance position of the paper sheet detected in step S4.

The transport device of the present invention is provided at both ends of a transport path for transporting paper sheets, and has first detecting means for detecting the transport position of the transported paper sheets, and the transported paper sheet. At least two or more of the sheets are arranged in parallel in the direction orthogonal to the conveying direction of the leaves and detect the conveyed sheets, and the second detecting means and the first detecting means detect the sheets. In addition, at least two or more conveying means that support and convey both ends of the paper sheet and are arranged in parallel at predetermined intervals, a motor that drives each of the conveying means, and a second detecting means. Based on the output signal, measuring means for respectively measuring the inclination of the paper sheet and the conveyance interval at the position of the second detecting means, the measurement result of this measuring means and the first detecting means. The rotation speed of each motor is determined based on the conveyance position of the paper sheet. And a control means for respectively controlling.

[0010]

According to the present invention, it is possible to correct the inclination of paper sheets, the conveyance interval, or the conveyance position during the conveyance to a normal state. Therefore, the inclination of the sheets to be conveyed, the conveying interval, or the conveying position can be adjusted, the malfunction of the apparatus is reduced, and the performance of the apparatus is significantly improved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 4 schematically shows a banknote handling apparatus to which the present invention is applied, and is roughly divided into a banknote sorting section 1 located on the upper side in the figure and a banknote banding section 2 located on the lower side in the figure. Has been done.

The banknote sorting section 1 has a supply section 6 capable of stacking a large number of various banknotes P on the front side thereof. Supply unit 6
The banknotes P stacked on each other are fed out from the lower end side thereof by the feeding mechanism 6a.
The sheets are separated one by one and sequentially fed out, conveyed by the conveyance rollers R1 and R2, the conveyance device 7, the conveyance rollers R3 and R4, and fed to the inspection unit 8.

Further, the feeding mechanism 6a and the conveying rollers R1,
The phototransistors 3a and 4a which are the non-contact type sensors 3 and 4 as the detection means for detecting the passage of the bill P conveyed on the conveyance path between the R2 and the infrared light emitting diodes 3b and 4b which are the light sources are the bill P. Are arranged at a predetermined interval in a direction orthogonal to the conveyance direction of. These sensors 3, 4
As will be described later, the inclination of the banknote P and the banknote interval are measured based on the output signals of the above.

Further, the feeding mechanism 6a and the conveying roller R
The line CCDs 5a, 5 are provided at both ends of the conveyance path between the R1 and the R2.
b is provided. These line CCDs 5a and 5b are adapted to detect the shift of the transport position of the bill P in the direction parallel to the transport direction.

In the inspection section 8, various information of the banknote P is optically or magnetically detected by a sensor, and its denomination, authenticity, etc. are discriminated. The banknote P that has passed through the inspection unit 8 is conveyed by a conveying unit 11 including a large number of pulleys and a plurality of systems of endless belts 10 wound around these pulleys. Then, when the gates 12, 13, and 13 arranged at the respective branch portions of the transport path are switched in a predetermined direction and are sorted and accumulated according to the denomination, the upper surface side of the bill sorting portion 1 The open pockets 14, 15 and 16 provided in the above are accumulated according to the denomination.

Further, the bill P of a specially designated denomination is
By the function of the gate 12, the paper is sent to the temporary stacking unit 20 of the stacking device 18 in the bill sealing unit 2 via the transport path 17,
A predetermined number of sheets are stacked with the front and back aligned.

A transport path 1 for transporting the banknote P to the stacking device 18.
A sensor 22 for discriminating between the front and back of the bill P is provided in the middle of 7. Banknote P that has passed through the sensor 22
Is passed through the gate 23 whose direction is controlled according to the signal from the sensor 22, and is selectively fed into either the front conveyance path 31 or the back conveyance path 32. Each exit portion 31 of the front conveyance path 31 and the back conveyance path 32
The a and 32a are arranged to face each other while sandwiching the temporary stacking unit 20 and to be stacked with one side of the front and the other side aligned.

In the vicinity of the outlets 31a, 32a, a partitioning means having separators 33, 34 is provided, and a pedestal 37 is vertically movable. Cradle 37
Motor 38 of the backup mechanism for driving the elevator up and down
Shifts the height of the pedestal 37 in accordance with the number of stacked banknotes P.

Sensors 47 and 48 for detecting the front end of the banknote P are provided on the respective conveying paths 31 and 32. The sensors 47 and 48 are used as a counting unit for counting the number of bills P sent to the temporary stacking unit 20.

Below the temporary stacking unit 20, a carrier 60 capable of receiving a predetermined number of banknotes P stacked on the receiving tray 37 is provided. The carrier 60 can reciprocate between the temporary stacking unit 20 and the sealing unit 61 by a driving unit (not shown). In the banding unit 61, a predetermined number of banknotes P are bound by a binding band 65.

Below the sealing section 61, a conveyor 66 for receiving bundled bills P'and a container 6 for accommodating the bills P'conveyed by the conveyor 66.
7 is provided.

In the above bill processing apparatus, the bills are processed at a very high speed (about 10 sheets per second), and the speed of bills conveyed is as high as about 1600 mm / s. A bill having a short length of 76 mm is conveyed with a conveyance interval of about 84 mm, and the conveyed bill is allowed to have an inclination angle of 5 degrees.

In such a bill processing apparatus, the bills that have been separated and conveyed are inclined (skew), the gap between bills is narrowed (short pitch), and the positions of the bills in the direction parallel to the conveying direction are displaced and conveyed. In the case of conveyance failure such as (conveyance position deviation), there arises a problem that the inspection unit 8 cannot determine that the inspection pattern matching cannot be performed, or that the operation time of the gate 12 arranged at each branch portion of the conveyance path is too late. Was there.

Larger skew and conveyance position shift are
Since the width of the transport path is limited, banknotes collide with the wall of the transport path, and if the transport position is deviated from the width of the stacking port at the time of stacking, the stacking failure often occurs.

Further, when the apparatus is largely tilted, the carrying width of the carrying device is limited, so that there is a problem that the carrying cannot be carried out. However, it is very difficult to accurately separate and convey the banknotes one by one, and the mechanism for separating the banknotes by the frictional force causes friction when the new banknotes and the old banknotes are mixed and accumulated. Due to the difference in coefficient, it was not possible to carry out accurate separation and transport. As a result, skew,
Short pitches, conveyance position shifts, etc. often occurred, causing problems.

Furthermore, in recent years, automatic transaction machines (ATMs) and the like have been required to have a circulation type banknote processing apparatus which uses banknotes deposited by a customer for withdrawal by the next customer. However, problems often occurred due to the problem of misalignment of the transport position.

Therefore, in the carrying device 7 according to the present invention, these problems are solved by using the means described below. 2 and 3 show the carrying device 7 according to the present invention in detail. In the figure, endless driven belts 1a and 1b as belt-shaped conveying means are
Rollers 8 which are arranged side by side with a predetermined interval and are each rotatable
It is bridged between a, 8b and 11a, 11b.
The other endless drive belts 2a and 2b serving as belt-shaped conveying means are arranged side by side in contact with the driven belts 1a and 1b, respectively, and are rotatable rollers 10a and 10b, respectively.
And the drive rollers 6a and 6b. As a result, the bill P has drive belts 2a, 2 at both ends thereof.
It is sandwiched between b and the driven belts 1a and 1b and conveyed in the direction of the arrow shown. The rotatable rollers 9a and 9b are the belts 2a, 2b, 1a and 1b.
It is intended to support the middle part of the road.

The drive rollers 6a and 6b are driven at arbitrary speeds in arbitrary directions by the step motors 7a and 7b and a control unit described later, and the speeds can be changed with time. .

The drive belts 2a and 2b are driven by the drive roller 6
Since the driven belts 1a and 1b are pulled by a and 6b to move, the driven belts 1a and 1b are opposed to each other by the driving belts 2a and 2b.
It operates following b.

A predetermined position with respect to the conveying device 7 thus constructed, for example, the conveying roller R which is the preceding stage of the starting end portion.
Sensors 3 and 4 are arranged on the conveyance path in the preceding stage of 1 and R2,
Lines C are provided at both ends of the conveying path in front of the conveying rollers R1 and R2.
CDs 5a and 5b are arranged.

FIG. 1 schematically shows an electric circuit of the carrier device 7 configured as described above. That is, the output signals of the sensors 3 and 4 are sent to the control unit 41, respectively. The control unit 41 measures the inclination of the banknote P based on the output signals of the sensors 3 and 4 and the timing difference in which the sensors 3 and 4 are blocked by the passage of the banknote P, as will be described later in detail, and the measurement is performed. Based on the result, the drive circuits 42 and 43
The stepping motors 7a and 7b are driven and controlled via the.

In order to detect the bill interval, the control unit 41 measures the bill interval from the time difference between when the sensor 3 or the sensor 4 is blocked by the previous bill and when it is blocked by the next bill.

The conveyance position of the bill is detected by detecting the position where the line CCDs 5a and 5b arranged at both ends of the conveyance path are blocked by the bill P. Next, the skew correction operation in the transport device 7 will be described with reference to the flowchart shown in FIG. Now, the bill P fed from the feeding unit 6 by the feeding mechanism 6a at a speed of 1600 mm / s is conveyed at the same speed by the conveyance rollers R1 and R2 while blocking the sensors 3 and 4. At this time, it is assumed that the bill P is skewed at an angle as shown in FIG. Note that 160
The speed of 0 mm / s is the steady conveyance speed of the bill processing apparatus.

The bill P is fed out by the feeding mechanism 6a, as shown in FIG.
When reaching the position of, the bill P blocks the sensor 4. When it is further conveyed at a constant speed, it reaches the position shown in FIG. 7 and blocks the sensor 3 as well. Control unit 41 that receives the output signals of the sensors 3 and 4
6 to 7 based on the output signals of the sensors 3 and 4.
The time to reach the state is measured, and the skew amount and the skew direction of the banknote P are calculated from the distance between the optical axes of the sensors 3 and 4. Here, when the skew direction is represented by a sign, for example, the CCW direction (counterclockwise direction) is defined as a positive skew,
The negative skew is set in the CW direction (clockwise direction). Therefore, the skew in FIGS. 6 and 7 is a positive amount.

Subsequently, the paper money P is transferred to the front stage conveyance rollers R1 and R.
Belts 1a, 1b, 2 driven at the same speed as 2
The conveyance rollers R1 and R2 are nipped and conveyed by a and 2b.
It is separated from and is conveyed while being held only by the belts 1a, 1b, 2a, 2b. In this case, as a matter of course, each belt 1a,
Step motors 7a, 7b for driving 1b, 2a, 2b
Have the same rotation speed.

At this stage, the control unit 41 determines from the measurement results based on the output signals of the sensors 3 and 4 that the conveyance speeds of the belts 1a and 2a for nipping and conveying the left side of the banknote P in the delayed conveyance direction are constant ( 1600 mm / s), and the conveyance speed of the belts 1b and 2b for nipping and conveying the right side with respect to the conveyance direction where the bill P is advanced is reduced. Therefore, the control unit 41 controls the step motor 7 that drives the belts 1b and 2b.
Decrease the speed of b.

As a result, the belt 1a on the left side,
The banknote P is rotated by an amount by which the belts 1b and 2b on the right side are delayed as compared with 2a, and the skew of the banknote P is corrected. The corrected inclination is determined from the area of the hatched portion of the step motor 7b shown in FIG.

That is, how much the right drive roller 6b with respect to the transport direction should be moved less than the left drive roller 6a with respect to the transport direction which moves at a constant speed within a certain time is determined. For example, if the skew angle is 10 ° and the optical axis interval between the sensors 3 and 4 is 80 mm, the correction in the CW direction is necessary, and the drive roller 6 on the right side within a unit time is required.
It is necessary to move b a little by "80 × tan (10 °) = 14.1 mm".

These calculations are performed by the control unit 41,
As a result, the rotation speed of the step motor 7b that drives the traveling belts 1b and 2b is reduced. For example,
By controlling the speed of the drive roller 6b on the right side so that the belt (1b, 2b) on the right side advances 36 mm while the belt (1a, 2a) on the left side advances by 50 mm, the inclination of the banknote P is corrected, It will be transported without it.

After the control is completed, the left and right belts (1
a, 1b, 2a, 2b) to the normal transport speed (16
By returning to 00 mm / s) and driving, the left and right become the normal conveyance speed, and the banknote P can be delivered to the conveyance rollers R3, R4 that are conveyed at a speed of 1600 mm / s in the subsequent stage.

The inclination can be corrected by a method of accelerating the speed of the driving roller on one side, or by decelerating the speed of one driving roller on the other side, in addition to the method of decreasing the speed of the driving roller on one side as described above. The same effect can be obtained by accelerating the speed of the driving roller.

In an actual banknote processing apparatus, the interval between the banknotes conveyed with respect to the banknote P having a length of 76 mm is usually 8
It is about 0 mm. In the transfer device 7, the skew is controlled during the transfer length of about 50 mm, so that the processing time is sufficient.

Next, the operation of correcting the short pitch in the transport device 7 will be described with reference to the flowchart shown in FIG. First, when the conveyance interval between the first and second bills P is abnormally narrow, for example, a processing method of 40 mm or less will be described.

In FIG. 10A, the processing of the bill P is started. The lowermost banknote P1 of the banknotes P, ... Set in the supply unit 6 is fed from the supply unit 5 by the feeding mechanism 6a to 16
The phototransistors 3a and 4a of the sensors 3 and 4 and the infrared light emitting diode 3b are fed at a speed of 00 mm / s.
4b, and the infrared light emitting diodes 3b, 4b
The light from is blocked and is transported by the transport rollers R1 and R2 at the same speed. Note that the speed of 1600 mm / s is the steady conveyance speed of the bill processing apparatus.

In FIG. 10B, the bill P1 is nipped and conveyed by the belts 1a, 1b, 2a and 2b which are driven at a constant speed at the same speed as the pre-stage conveyance rollers R1 and R2, and the rear end of the bill P1 is Sensors 3 and 4, followed by transport roller R
1 and R2, and is pinched and conveyed only by the belts 1a, 1b, 2a and 2b. Subsequently, the next bill P2 is fed by the feeding mechanism 6, interrupts the sensors 3 and 4, and is conveyed by the conveyance rollers R1 and R2. Banknote P2 from the rear end of banknote P1
The initial conveyance interval x0 (1) is determined by the controller 41 from the time difference between the leading ends of, i.e., the conveyance intervals interrupting the sensors 3 and 4.

In FIG. 10C, the control unit 41 drives the stepping motor 7a, which drives the carrying device 7 from the value of the initial carrying interval x0 (1) in order to make the carrying interval necessary (widen the narrow interval). The speed curve of 7b is calculated, and the step motors 7a and 7b are accelerated from the steady speed, driven for a predetermined pulse, and then decelerated to return to the steady speed.

By performing the above processing while the banknotes are held only by the belts 1a, 1b, 2a, 2b of the transporting device 7 of this embodiment, the speed can be controlled. In addition, when the banknote P enters the carrier device 7 and when the banknote P from the carrier device 7
When the sheet is discharged, it is possible to prevent the occurrence of defects due to the difference in speed by setting the normal transport speed.

As a result of the above processing in FIG.
The conveyance interval between the first banknote P1 and the second banknote P2 is
x1 (1). In this case, the change amount Δx (x1
(1) -x0 (1)) is determined from the time when the step motors 7a and 7b are accelerated / decelerated.

For example, when the initial conveyance interval x0 (1) between the first bill P1 and the second bill P2 is 30 mm,
180 banknotes P conveyed at a steady speed of 1600 mm / s
If the paper is conveyed at 0 mm / s for 0.1 seconds, the conveyance distance that becomes larger than that at the constant speed is Δx =
(1800-1600) × 0.1 = 20 mm. That is, the conveyance interval of the first banknote P1 that has been accelerated and conveyed with the second banknote P2 is increased by 20 mm.

As a result, the initial conveyance distance x0 (1) = 30 mm between the bill P1 and the bill P2 is equal to the conveyance distance x1 (1) after the above correction.
= 50 mm. The conveyance interval is 50 mm, and the processing of the inspection unit 8 and the like in the subsequent stage can reduce the problems due to the conveyance interval.

Since it is impossible to change the speed of the step motors 7a and 7b rapidly, the control section 41 is required to calculate the transport distance including slew-up and slew-down instead of simple step-speed change. There is.

For example, when the speed of the step motor is changed as shown in FIG. 11, the change amount Δx of the conveying distance is
The area is the shaded area in FIG. Therefore, the variation Δx (m
m) is Δx = ((t4-t1) + (t3-t2)) × Δx / 2. The conveyance interval can be widened (increased) by this distance.

The above is the first banknote P1 and the second banknote P.
The case where the conveyance interval of 2 is narrow has been described, but the case where the interval between the nth and n + 1th banknotes is narrow will be described with reference to FIG. 12.

In FIGS. 12A, 12B, and 12C, after the processing is started, the banknotes P, ... Which are sequentially accelerated from the first banknote P1 and have passed through the transport device 7 are always in their original positions (steady speed). It is a position advanced from the position (when transported at 1600 mm / s).

That is, the control unit 41 controls the first bill P
The first and second bills P2 having the initial conveyance interval x0 (1) accelerate the bill P1 by the conveying device 7 to x1 (1), and the succeeding bill P2 also accelerates to move from the conveying device 7. At the time of discharging, the conveyance interval between the banknote P1 and the banknote P2 is x2 (1), which is about the same as the initial conveyance interval x0 (1). By continuously performing such processing, there is a large gap between the banknote P discharged from the transport device 7 and the banknote P entering the transport device 7.

In FIG. 12 (d), the controller 41 controls the n
When the succeeding banknote Pn + 1 interrupts the sensors 3 and 4 at the stage where the first banknote Pn enters the carrier device 7, the initial carrier interval x
Calculates 0 (n).

In (e) of FIG. 12, the control section 41 controls the conveyance interval x2 (n) between the bill Pn and the preceding conveyance bill Pn-1.
-1) within the range of 40 mm or less, conveyance interval x1
The control amount Δx is calculated so that (n) becomes 40 mm or more, and the speeds of the step motors 7a and 7b are accelerated. As a result of this processing, the conveyance interval x2 with the preceding conveyance bill Pn-1.
Although (n-1) becomes small, the conveyance interval with the succeeding banknote Pn + 1 is widened.

By sequentially performing such processing, the conveyance position of the bills P, ... Which have passed through the conveyance device 7 is advanced further than in the case where the conveyance position is conveyed at a normal conveyance speed, and an accelerating gap (conveyance that is always accelerated and contracted). By widening the interval), when the bills P having a short initial conveyance interval are detected by the sensors 3 and 4,
Even if the transportation device 7 accelerates and secures a transportation interval of 40 mm or more, it is possible to control so that the transportation interval with the preceding transported banknote P does not reach a level at which a problem occurs.

Finally, the operation of correcting the transfer position in the transfer device 7 will be described with reference to the flowchart shown in FIG. In FIG. 14A, the conveyance position of the banknote P1 is detected from the position where the line CCDs 5a and 5b arranged in front of the conveyor 7 are blocked by the banknote P1 being conveyed.

As shown in FIG. 14 (a), the bill P1 is conveyed in parallel to the conveying direction with its position shifted to the right side (deviation to the right side), and this conveying position shift is corrected to the left side. The case will be described.

The bill P1 is transported to the transport device 7 by the transport rollers R1 and R2 at a speed of V = VC = 1600 mm / s. In FIG. 14B, the conveyed bill P1
At the stage when the bill enters the transport device 7, the control unit 41 accelerates the bill transport speed by the left belt 1a (and the sandwiching 2a) to a speed required to correct the positional deviation, and V =
VC + ΔV. Therefore, the control unit 41 controls the belt 1a.
The speed of the step motor 7b that drives (and 2a sandwiched between) is accelerated. At this time, the belt 1b on the right side (2b sandwiched between the belts 1b) is set to the normal conveyance speed VC.

The gripping force of the banknotes is obtained by the positions r _1a and r _1b where the rollers 11a and 11b and the belts 2a and 2b are in contact with each other, and the rollers 8a and 8b and the belt 2a and the conveyor 2 shown in FIG.
The positions r _2a and r _2b contacted by _2b are strongest, and the other positions are weak. As a result, when there is a difference in conveyance speed between the left belt 1a and the right belt 1b, the rotation speed is on the side with the slowest speed in the portion with the strongest clamping force. Therefore, the bill P1
_Rotates around r _1b on the side of the belt 1b, which is the slower side of the conveying speed.

As shown in FIG. 14C, the belt 1a
The banknote P1 that is conveyed due to the difference in the conveyance speed of the banknote between (the sandwiched 2a) and the belt 1b (the sandwiched 2b) has a shape in which the left side is advanced in the conveying direction. After that, the control unit 41
Is the normal speed when the banknotes are conveyed at the normal conveyance speed VC and when a predetermined amount is conveyed as shown in (d) of FIG. 14, the conveyance speed of the banknotes by the left belt 1a (and 2a sandwiched between them) is the normal speed. , The banknote conveyance speed by the belt 1b on the right side (and 2b sandwiching it) is accelerated to V = VC + ΔV.

At this time, the bill P1 rotates around the position r _1a having the strongest clamping force of the left belt 1a having the slow speed. After a predetermined time elapses in (e) of FIG. 14, the control unit 41 sets the banknote transport speed by the belts 1a (and the sandwiching 2a) and 1b (and the sandwiching 2b) to the normal transport speed V.
It becomes possible to return the banknote P1 to C and drive the banknote P1 to deliver the bill P1 to the conveyance rollers R3 and R4 which are conveyed at the normal conveyance speed VC in the subsequent stage.

In this way, the conveyance position of the bill P1 is changed from the position shift to the right side as shown in FIG. 14 (a) to the center position of the conveyance path as shown in FIG. 14 (e). Will be fixed.

In FIG. 14 (f), the banknotes are continuously conveyed, and the conveyance position deviation can be corrected for the next banknote P2 by the same procedure. As described above, according to the above-described embodiment, it is possible to correct the inclination, the conveyance interval, and the conveyance position of the banknote during the conveyance.

The inclination of the bills to be conveyed, the conveyance interval,
The permissible values for the transfer position differ depending on the machine used.For example, set a small value for a device that requires a very accurate transfer state, and set a large value for a relatively loose device. May be. In this case, each of the bills to be conveyed may not have normal inclination, interval, and conveyance position. Therefore, by performing control on the inclination, gap, and conveyance position for each of the above, the posture of the banknote can be changed. It is also possible to correct the conveyed bills to a normal conveying posture.

However, there is a limit to the controllable range,
It is impossible to modify beyond that limit. Therefore, the control unit 41 can carry out the maximum correction within a possible range, or can carry the paper at a normal carrying speed without making any correction.

Further, if there is a conveyance path whose left and right speeds can be controlled independently of the normal conveyance path and a means for detecting the inclination, interval and conveyance position of the bill, the conveyance posture can be corrected, and instead of the conveyance belt. A roller may be used, and a speed controllable motor such as a servo motor may be used instead of the step motor.

Further, the line C is used as a conveyance position detecting means.
Instead of a continuous detection means such as a CD, a single sensor such as a light emitting diode and an optical sensor mounted at the left and right conveyance position shift limit positions may be used. In this case, when one of the sensors is blocked by the bill, the carrying position may be corrected to the opposite direction to some extent.

In the above embodiment, the case where the present invention is applied to the bill processing apparatus has been described, but the present invention is not limited to this. For example, an automatic processing machine (AT
The same can be applied to a transport device in a bill processing unit such as M).

[0072]

As described above in detail, according to the conveying apparatus of the present invention, the inclination of the conveyed sheets, the conveying interval, or the conveying position can be adjusted, so that the trouble of the apparatus can be reduced. It is possible to provide a transporting device whose performance is significantly improved.

[Brief description of drawings]

FIG. 1 is a block diagram schematically showing an electric circuit of a carrier device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a transfer device.

FIG. 3 is a plan view showing a configuration of a transfer device.

FIG. 4 is a configuration diagram schematically showing a bill processing device.

FIG. 5 is a flowchart for explaining a skew correction operation by the transport device.

FIG. 6 is a diagram showing detection of banknote inclination.

FIG. 7 is a diagram showing detection of banknote inclination.

FIG. 8 is a speed chart of a step motor.

FIG. 9 is a flowchart for explaining a short pitch correcting operation by the transport device.

FIG. 10 is a diagram showing a method of processing the conveyance interval of the conveyed bills.

FIG. 11 is a diagram showing a speed change of a step motor.

FIG. 12 is a diagram showing a method of controlling a conveyance interval of conveyed bills.

FIG. 13 is a flowchart for explaining a correcting operation of a transfer position by the transfer device.

FIG. 14 is a diagram showing a method of controlling a transportation position of a bill to be transported.

[Explanation of symbols]

P, P1, P2 ... Banknotes (paper sheets) 1a, 1b ... Driven belts (conveying means) 2a, 2b ... Driving belts (conveying means) 3, 4 ... Sensors (detecting means) 5a, 5b ... Line CCD (detecting means) ) 6a, 6b ... Driving roller 7 ... Conveying device 7a, 7b ... Step motor 8a, 8b, 9a. 9b, 10a, 10b, 11a, 1
1b ... Roller 41 ... Control unit 42, 43 ... Drive circuit

Claims (2)

[Claims] 1. A detection unit which is disposed at both ends of a conveyance path along which a paper sheet is conveyed and detects a conveyance position of the conveyed paper sheet, and both ends of the paper sheet detected by the detection unit. Transporting means for supporting and transporting at least two parts, and at least two or more transporting means arranged side by side at predetermined intervals, a motor for driving each of the transporting means, and a transporting position of the paper sheet detected by the detecting means. And a control unit that controls the rotation speeds of the respective motors based on the above. 2. A first detection unit, which is disposed at both ends of a conveyance path along which the paper sheet is conveyed and detects a conveyance position of the conveyed paper sheet, and a conveyance direction of the conveyed paper sheet. At least two or more side-by-side detectors arranged in a direction orthogonal to the second detecting means for detecting the conveyed paper sheets; and the paper sheets detected by the second detecting means and the first detecting means. Based on the output signal of the second detection means, a conveyance means that supports and conveys both ends of each of the conveyance means, and at least two or more conveyance means that are arranged in parallel at predetermined intervals, Measuring means for measuring the inclination of the paper sheet at the position of the second detecting means and a conveyance interval, respectively, and a measurement result of the measuring means and the paper sheet detected by the first detecting means. Controls the rotation speed of each motor based on the transport position Conveying apparatus characterized by comprising a control means, a.