JP3746165B2 - Banknote handling device and wrinkle stretching method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a banknote handling apparatus, and more particularly to an automatic cash handling apparatus having a wrinkle stretching apparatus.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, it has been known that, in an apparatus for handling paper sheets such as banknotes, various kinds of problems occur when the paper sheets to be handled have wrinkles. As such problems, for example, the occurrence of a failure such as a jam at the time of transporting a paper sheet, and the case where the paper sheet is a banknote cannot be sufficiently distinguished.
[0003]
In order to solve the above-mentioned problem, it is known that a bill handling device is provided with a mechanism for stretching wrinkles of bills in a bill handling device.
[0004]
As an apparatus of this type, Japanese Patent Application Laid-Open No. 9-40262 discloses a banknote wrinkle stretching apparatus. In the above prior art, the supplied banknote is conveyed to the wrinkle stretching mechanism by a conveyor belt or the like. The conveyed wrinkled banknote is inserted between the heating roll and the heat-resistant endless belt by the guide and the endless belt. The heating roll is heated to a predetermined temperature by a heat source such as a halogen lamp. By the endless belt, the wrinkled banknote comes into contact with a heating roll that is a heating unit, and is heated at a nip portion where the heating roll and the endless belt contact. The heated banknote is pressed by a heating roll and a pressure roll through an endless belt. As described above, the prior art describes that wrinkles are stretched by applying pressure after heating the banknote. The wrinkled banknote is separated from the heating roll and carried out as a flat banknote.
[0005]
Further, in the wrinkle stretching control described in JP-A-9-231434, the customer determines the wrinkle state and performs wrinkle stretching.
[0006]
[Problems to be solved by the invention]
In the prior art described in JP-A-9-40262, the endless belt does not take into account meandering due to thermal expansion or tension fluctuation.
[0007]
The endless belt described in Japanese Patent Application Laid-Open No. 9-40262 is conveyed without contacting the heating roll, the portion that is in pressure contact with the heating roll by the pressure roll, and the heating roll and the pressure roll without contacting. The thermal stress distribution is not uniform. Further, since the heat is absorbed by the wrinkled banknote, the thermal stress distribution is not even more uniform.
[0008]
Further, the endless belt is tensioned to bring the bill into contact with the heating roll. Moreover, tension | tensile_strength differs also in the part clamped with a heating roll and a heating roll, and a non-clamping part.
[0009]
Therefore, since the tension in the belt changes greatly depending on the presence of heat and banknotes, there is a possibility that the belt meanders due to fluctuations in tension, but this conventional technique does not consider the meandering of the belt.
[0010]
Further, the endless belt needs to have a high friction relationship with the banknote in order to prevent the occurrence of shift and skew when the banknote is conveyed. However, in order to stretch the wrinkles of the banknote, it is desirable that the banknote and the endless belt have a low friction relationship. Therefore, there is a contradictory relationship between the bill conveyance performance and the wrinkle stretching performance.
[0011]
Moreover, in the prior art described in Unexamined-Japanese-Patent No. 9-231434, the operator of a banknote handling apparatus is made to judge the state of a banknote on the screen of a banknote handling apparatus. That is, the operator who inserted the banknote is made to judge whether the banknote is crumpled, has a large fold / warp, or has a small fold / warp. Further, the wrinkle-stretching method, for example, the heating temperature is determined by the judgment of the operator of the apparatus. As described above, in the technique described in Japanese Patent Application Laid-Open No. 9-231434, the wrinkle state of the banknote depends on the subjectivity of the handler, so the optimal wrinkle stretching method is not always selected, and the wrinkle stretching process is repeated. The possibility of unnecessarily causing customers to spend time is not taken into consideration.
[0012]
According to the above prior art, when handling banknotes having wrinkles in the banknote handling device, the amount of stacking due to jamming or the like occurring during conveyance of banknotes, or wrinkles of banknotes when stacking banknotes inserted into the device It is not considered to prevent the reduction sufficiently.
[0013]
In addition, improving the wrinkle stretching performance leads to a decrease in the conveyance performance, so that the wrinkle stretching performance cannot be sufficiently improved.
[0014]
An object of the present invention is to correct the state of banknotes in a banknote handling apparatus with an appropriate means and method, and to prevent jamming on conveyance and reduction of the stack amount of banknotes even in banknotes on which wrinkles are formed. is there.
[0015]
[Means for Solving the Problems]
The purpose is to transport a banknote in a transport path, a first wrinkle stretching section that stretches wrinkles of the banknote in a direction perpendicular to the banknote transport direction, and a banknote processed by the first wrinkle stretching section. A wrinkle-stretching mechanism that has a second wrinkle-stretching section that heats and presses the paper with a heat roller and an elastic roller, a transport path switching section that switches the transport of banknotes from the transport path to the wrinkle-stretching mechanism, and detects the thickness of the banknotes a thickness detection unit which, Ru is achieved by having a control unit for controlling the conveying path switching unit in accordance with the output of the thickness detection unit.
[0016]
The above-described object is Ru is achieved by changing the rotation speed of the elastic roller and the heat roller in accordance with the output of the thickness detection unit.
[0017]
Moreover, the said objective is to detect the thickness of the banknote currently conveyed in the wrinkle extending method of the banknote which extends the wrinkle of the banknote conveyed within a banknote handling apparatus, and wrinkles the said banknote according to the thickness information of the detected banknote. This is achieved by conveying to a stretching mechanism and stretching the wrinkles of the banknote in a direction perpendicular to the banknote transport direction, and then applying heat and pressure with a heat roller and an elastic roller .
[0018]
The above-described object is Ru is achieved by changing the rotation speed of the elastic roller and the heat roller in accordance with the thickness information of the bill.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a conceptual diagram illustrating a wrinkle stretching mechanism of a bill handling apparatus according to an embodiment of the present invention. FIG. 2 is an apparatus configuration diagram illustrating a bill handling apparatus according to an embodiment of the present invention. In FIG. 2, a wrinkle stretching mechanism 31 to be described later based on FIG. 1 includes a deposit / withdrawal port 30, denomination boxes 32 and 33, a bill cassette 34, a temporary stacking unit 35, a two-sheet detector 36, and a discrimination through a transport mechanism. It is connected to the part 37 and the like. The bill is introduced into the wrinkle stretching mechanism 31 by the gate 42 that changes the transport direction from the transport mechanism. Each structure of the banknote handling apparatus 50 is as follows.
[0024]
The deposit / withdrawal port 30 is a bill deposit / withdrawal port. The denomination boxes 32 and 33 are boxes for storing banknotes for each denomination such as 1,000 yen or 10,000 yen. The temporary stacking unit 35 is distinguished from the banknote cassette 34 for loading and collecting banknotes by a separator 41, and in order to prepare for the actual return when there is a problem with the banknotes deposited from the deposit / withdrawal port 30. Temporarily hold the deposited banknotes. The two-sheet detector 36 detects whether two or more banknotes separated and conveyed from the deposit / withdrawal port 30 or the denomination boxes 32 and 33 are overlapped. The discriminating unit 37 discriminates the denomination and authenticity of the banknotes in order to store the banknotes in the denomination box 32 or 33 from the temporary stacking unit 35, or discriminates the folding of the banknotes in some cases. The forgotten collection box 39 stores banknotes that the collected customers forgot to collect. The reject box 40 stores the banknote when the two-sheet detector 36 or the discrimination unit 37 determines that the banknote is unsuitable for storing in the denomination box 32 or 33. For example, when it is detected that two or more banknotes are overlapped by the two-sheet detector 36, when it is impossible to distinguish by the discrimination unit 37, or a fold or a chipped part of the banknote is detected. Is the case.
[0025]
Next, the wrinkle stretching mechanism of the present invention will be described in detail with reference to FIG. In FIG. 1, the banknote which has a wrinkle conveyed and wrinkled is abbreviate | omitted on drawing. The wrinkled banknotes that have been transported in the banknote handling apparatus are simply passed through the wrinkle stretching mechanism or are subjected to wrinkle stretching processing by the gate 11, or the processing is switched. When the gate 11 operates so as to pass through the conveyance path formed by the rollers 1, 2, 17 and the belt 3 and the guides 4, 5, 10, the bill passes through the wrinkle stretching mechanism without being subjected to wrinkle stretching.
[0026]
By the operation of the gate 11, the wrinkled banknote conveyed into the wrinkle stretching mechanism is bent within a predetermined curvature of 30 mm by the bending roller 16 that is the first wrinkle stretching portion and the gate 11. The gate 11 also functions as a guide for sending the conveyed banknotes in correspondence with the bending roller 16. Due to the bending of the bill at this time, an internal force is generated on the wrinkled bill in a direction perpendicular to the transport direction.
[0027]
For example, if the thickness of a wrinkled banknote is 0.1 mm, the Poisson's ratio ν = 0.3, and the longitudinal elastic modulus E = 500 [kgf / mm ² ], the Bernoulli-Euler law is applied to the banknote. The above internal force is calculated. Assuming that the inner surface of the bending does not expand or contract, an internal force of at least about 1.8 [kgf / mm ² ] is generated. By this internal force, the wrinkled banknote is stretched in a direction perpendicular to the transport direction.
[0028]
The predetermined value of the internal force generated in the banknote is obtained by a banknote tensile test whose result is shown in FIG. FIG. 3 is a diagram illustrating a result of a tensile test performed on banknotes. The test result 101 indicates the result of a flat bill tension test. The test result 102 shows the tensile test result of the wrinkled banknote. In both tests, a tensile test was performed up to the breaking point 104. From this result, the area | region 103 which was able to judge visually that the wrinkle of the wrinkled banknote was extended by tension | pulling is an area | region where the deformation | transformation curve of a banknote changes to the state close | similar to a straight line.
[0029]
As shown in FIG. 3, it can be seen from the measurement results 101 for flat banknotes (banks without wrinkles) and the measurement results 102 for wrinkle banknotes (banknotes with wrinkles) that the tensile test results are different between flat banknotes and wrinkle banknotes. . Furthermore, it can be seen from FIG. 3 that a wrinkled banknote requires about twice as much pulling force as a wrinkle stretches compared to a flat banknote. In the measurement result 102 of the wrinkled banknote, in order to make the banknote 103 in which the wrinkle is extended, according to FIG. 3, a stress of about 1.5 [kgf / mm ² ] or more is applied in the direction perpendicular to the banknote transport direction. By adding, the wrinkles folded in the conveyance direction can be extended.
[0030]
In the present embodiment, in order to generate the stress as described above on the banknote, it is necessary to bend the banknote without restraining it to at least a curvature radius of 30 mm or less in consideration of the longitudinal elastic modulus, thickness, and Poisson's ratio of the banknote. There is. The state in which the banknote is restrained is, for example, a state in which the banknote is wound around a roller by a belt.
[0031]
In a bent wrinkle bill, the stretched wrinkle tends to return to its original state due to its elasticity or the like. In order to prevent this restoration, it is necessary to hold (deformation restraint) in a deformed state at least within 100 [ms]. For example, if the mass of the banknote is 0.1 [g] and the spring constant k of the wrinkled banknote is about 10.0 [kgf / mm], at least in calculation, the stretched wrinkle returns to the original state. It takes 100 [ms] or more.
[0032]
Therefore, the wrinkled banknotes are restrained by the elastic roller 19 and the transport roller 18 in order to prevent the bent wrinkled banknotes from returning to their original shape. The intervals between the elastic roller 19 and the transport roller 18 and the bending roller 16 are at least equal to or less than a value obtained by multiplying the bill transport speed V by 100 [ms]. That is, if the conveyance speed V = 500 [mm / s], at least the interval L needs to be 50 [mm] or less.
[0033]
The deformed and restrained banknote is conveyed to the second wrinkle extending portion. Specifically, the deformed and restrained banknote contacts the heat-resistant elastic roller 14 through the conveyance path formed by the guide 5. The heat-resistant elastic roller 14 is heated by rotating while being in contact with a heat roller 15 driven by a drive source (not shown). The wrinkled banknote is heated by being conveyed along the heat resistant elastic roller 14. The wrinkled banknote is conveyed to the contact portion between the heat resistant elastic roller 14 and the heat roller 15 by the heat resistant elastic roller 14, the conveying rollers 20 and 21 and the guide 7. The guide 7 is attached so as to be openable and closable around the rotation center 7a. The wrinkled banknote is heated and pressed at the contact portion between the heat-resistant elastic roller 14 and the heat roller 15.
[0034]
The heat roller 15 is heated by a heat source such as a halogen lamp built in at least 100 ° C. or more. The heat resistant elastic roller 14 is also heated to at least 60 ° C. or more by contact with the heat roller. Although not shown in the present embodiment, in order to perform temperature control, it is desirable to attach a heat roller 15, a heat-resistant elastic roller 14, and a sensor for measuring the surface temperature of the bill.
[0035]
The contact length (nip length) formed by applying a load to the heat-resistant elastic roller 14 and the heat roller 15 is important for the wrinkle stretching performance of the bill. Although not shown, the heat-resistant elastic elastic roller 14 is elastically supported by a spring support mechanism.
[0036]
The heat-resistant elastic roller 14 may be a driven roller and the heat roller 15 may be a combination of a driving roller, but the elastic roller 14 may also be a driving roller.
[0037]
The elastic roller 14 is made of an elastic member such as rubber, but the thickness of the rubber part is preferably 50 degrees or less and 5 mm or more in order to secure the wrinkle-stretching performance.
[0038]
When inserting a bill into the bill handling apparatus, it is easy to insert a coin together with the bill. Clips that bundle banknotes are also easy to insert with the banknotes. When coins or clips are accidentally inserted, if these foreign substances are conveyed to the contact portion between the heat roller 15 and the heat-resistant elastic roller 14, the foreign matters are clogged at the contact portion, causing bill jamming. In order to prevent such bill jamming, the rubber hardness of the heat resistant elastic roller 14 is desirably soft rubber of 50 degrees or less. Regarding the thickness of the rubber, the thickness of the elastic part such as rubber is required to be 5 mm or more in order to make the compression deformation rate 40% or less with respect to the coin thickness of about 2 mm.
[0039]
The heating and pressurizing time is required for the time required for the bill to reach about 60 ° C. or higher. When the temperature of the banknote is about 60 ° C. or higher, moisture in the banknote evaporates, the fiber of the banknote shrinks, and wrinkles extend. Although depending on the initial temperature of the banknote, if the initial temperature of the banknote is about 20 degrees, at least about 5 [ms] or more is necessary.
[0040]
The banknote in which the wrinkles are extended through the contact portion between the heat-resistant elastic roller 14 and the heat roller 15 is peeled off from the heat roller 15 by the first scraper 13. The peeled banknote is conveyed on the heat resistant elastic roller 14 by the guide 8 and the conveying roller 22.
[0041]
Next, the banknote in which wrinkles are extended is peeled off from the heat-resistant elastic roller 14 by the second scraper 12. The banknotes peeled off from the elastic roller 14 join the transport path formed by the belt 3 along the guide 9 while being bent by the carry-out rollers 23 and 24.
[0042]
The guides 7 and 8 are opened in directions away from the heat-resistant elastic roller 14 around the rotation centers 7a and 8a, respectively, and when foreign matter stays in the conveyance path, a space for removing the foreign matter is secured and removal work is performed. It also serves as a guide for preventing a person from contacting the heat roller 15.
[0043]
The surface of the heat-resistant elastic roller 14 is desirably mounted with a film-like medium having a low friction coefficient, for example, a fluororesin film, or coated with a fluororesin. Thereby, there exists an effect which the wrinkle of a banknote becomes easy to extend. When the surface of the elastic roller 14 is a high friction member, a speed difference between the elastic roller 14 and the heat roller 15 is likely to occur, and torque fluctuations are large, which causes troubles such as jamming.
[0044]
It is desirable that at least the surface member of the heat roller 15 is a metal in order to enhance the releasability of bills that are heated and pressed in combination with an elastic roller. In order to further improve the releasability, a fluorine-based coating film may be provided on the outermost surface of the heat roller 15. As will be described later, the surface of the heat roller 15 may have a groove that allows at least a part of the scraper 13 to enter. Further, the heat roller 15 may have an inverted crown shape in which the roller diameter increases from the center to the end, thereby increasing the effect of the first wrinkle extending portion.
[0045]
FIG. 4 is a conceptual diagram for explaining the configuration of the two-sheet detector. The wrinkled banknote 70 is conveyed between a fixed roller 72 having a predetermined gap 76 set based on the thickness of the banknote and a position variation roller 71 supported by a spring 73. The bill 70 changes the interval between the rollers 71 and 72, and the change information 75 that is the change result is detected by a displacement sensor constituted by a magnetic sensor 74 and a position detection unit 77. FIG. 5 is a diagram showing an example of the output of the displacement sensor. As shown in FIG. 5, the fluctuation information 62 when a flat banknote passes through the gap 76, the fluctuation information 60 when a wrinkle banknote passes through the gap 76, and the gap 76 in a state where two banknotes overlap. The variation information 61 when passing is different. For example, the case where a displacement sensor output of a predetermined value 63 or more is obtained is counted, and the fluctuation information 62 of the flat banknote and the fluctuation information 60 of the wrinkle banknote and the fluctuation information 61 of two or more banknotes can be distinguished. That is, the information based on the thickness can be used as information capable of recognizing the wrinkle state.
[0046]
In consideration of the result of FIG. 4, wrinkle elongation is evaluated as follows. The banknote processed in the wrinkle stretching mechanism 31 shown in FIG. In the gap fluctuation information obtained from the output result of the two-sheet detector 36, the output exceeding a predetermined value is counted. When this count number is equal to or less than a predetermined value with respect to the count number obtained from the flat bill fluctuation information 62, it is considered that wrinkle stretching has been achieved.
[0047]
FIG. 6 is a flowchart showing a method for wrinkling a banknote in a banknote handling apparatus according to an embodiment of the present invention. Hereinafter, in describing FIG. 6, the same reference numerals as those in FIG.
[0048]
The banknotes separated and conveyed from the deposit / withdrawal port 30 or the denomination boxes 32 and 33 are detected by the two-sheet detector 36 in the overlapping state of the banknotes. Based on the fluctuation information which is the detection result of the two-sheet detector 36, wrinkle state information of the banknote is obtained (201). The banknote determined to be in a state where two or more banknotes are overlapped by the detection result of the two-sheet detector 36 is collected in the reject box 40 (202). The banknote determined to be one is discriminated between authenticity and the like by the discrimination unit 33 (204), and the banknote that cannot be discriminated is conveyed to the deposit / withdrawal port 22 or the reject box 40 (204). The necessity of wrinkle stretching is determined from the wrinkle state information of the banknote obtained by the two-sheet detector 36 (205), and if necessary, wrinkle stretching is performed (206). Whether the banknote wrinkle stretching process is necessary is determined by comparing the wrinkle state information obtained in step 201 against the fluctuation information of the flat banknote, for example, using the result of FIG.
[0049]
The number of wrinkle-stretching processes of the banknote that has been subjected to the wrinkle-stretching process is counted, and it is determined whether the count value is a predetermined value or less (207). When the count value of the number of wrinkle stretching processes is equal to or less than a predetermined value, the wrinkle state measurement of the bill is performed by the two-sheet detector 36 (201). Then, it is determined whether or not the discrimination state of the banknote becomes indistinguishable (203), and further, it is determined whether or not wrinkle stretching is performed (205). The banknotes whose wrinkles are no longer detected are returned to the normal transport path and collected in a denomination box or the like. Banknotes that are determined to require wrinkle stretching are subjected to a wrinkle stretching process in a wrinkle stretching mechanism. If the number of wrinkle stretching for the bill exceeds a predetermined value, the wrinkle stretching routine is terminated and the bill is collected (208). In this case, even if the wrinkle is stretched a predetermined number of times, it means that the wrinkle is not sufficiently stretched, and there is a possibility that the banknote is crushed in a broken state or a foreign matter is attached. Therefore, the banknotes are collected in the reject box 40.
[0050]
Reducing the speed of the heat roller 15 and the elastic roller 14 in the wrinkle stretching mechanism from the predetermined speed according to the number of wrinkle stretching is effective for improving the wrinkle stretching ability. In the wrinkle-stretching mechanism of the present invention, the wrinkle-stretching ability is greatly influenced by the time during which the banknote is held between the elastic roller 14 and the heat roller 15. Therefore, reducing the speeds of the heat roller 15 and the elastic roller 14 from a predetermined speed increases the time for holding the banknotes in the gap, and increases the time for heating and pressurizing the banknotes. Therefore, by performing this control, the wrinkles of the banknote can be further extended.
[0051]
FIG. 7 is a cross-sectional view of a heat-resistant elastic roller used in a wrinkle stretching mechanism of a bill handling apparatus according to an embodiment of the present invention. The heat resistant elastic roller 250 includes a heat resistant elastic roller 251, a gap 252, and a coat layer 253. When the elastic roller 250 is applied to the wrinkle stretching mechanism of the present invention, the elastic roller 250 has a positional relationship in which a part of the second scraper 12 shown in FIG. For this reason, it is possible to prevent a trouble that a bill enters between the scraper 12 and the elastic roller 250 (the elastic roller 14 in FIG. 1). As a result, the peeling performance between the heat-resistant elastic roller 14 and bills is improved. The gap 252 reaches the shaft in FIG. 7, and the elastic roller 250 is configured by three members. The elastic roller 251 is configured such that a part of the scraper 12 enters between the elastic rollers 251. If it is comprised, it may be integral. For example, a structure in which the elastic roller 250 is integrally formed and the elastic roller 250 has a circumferential groove-like recess on the surface thereof corresponds to the structure.
[0052]
Further, although the heat-resistant elastic roller has been described with reference to FIG. 7, a similar effect can be obtained by providing a groove-like gap on the surface of the heat roller.
[0053]
Further, on the surface of the heat-resistant elastic roller 250 shown in FIG. 7, a low-friction conductive coat layer 253, for example, a conductive fluororesin or the like is used in order to prevent static electricity between the bill and the rollers 14, 15 and the like. Provide. The deposition resistivity of such a coat layer 253 is desirably 106 Ωcm or less. When the heat-resistant elastic part 251 is a heat-resistant conductive elastic body such as conductive silicon rubber, the coat layer may not be provided.
[0054]
According to the above-described embodiment to which the present invention is applied, it is possible to eliminate the influence of the meandering of the belt that occurs in the configuration in which the wrinkles are stretched by the conventional belt and roller, eliminate the trouble of transporting bills based on the meandering of the belt, and jam It is possible to eliminate the trouble of the banknote handling device such as damage to banknotes.
[0055]
In addition, according to the above-described embodiment to which the present invention is applied, the wrinkle state of the banknote can be determined based on the information of the displacement sensor, not the determination of the wrinkle state based on the customer's subjectivity. And the wrinkle stretching process can be performed in the shortest time.
[0056]
【The invention's effect】
According to the present invention, a highly reliable banknote handling apparatus can be provided. In addition, it is possible to realize the optimal banknote wrinkling.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram illustrating a wrinkle stretching mechanism of a bill handling apparatus according to an embodiment of the present invention.
FIG. 2 is an apparatus configuration diagram illustrating a banknote handling apparatus according to an embodiment of the present invention.
FIG. 3 is a diagram showing a result of a tensile test performed on banknotes.
FIG. 4 is a conceptual diagram for explaining a configuration of a two-sheet detector.
FIG. 5 is a diagram illustrating an example of a displacement sensor output of a two-sheet detector.
FIG. 6 is a flowchart showing a method for wrinkling a banknote in a banknote handling apparatus according to an embodiment of the present invention.
FIG. 7 is a cross-sectional view of a heat-resistant elastic roller used in a wrinkle stretching mechanism of a bill handling apparatus according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11, 42 ... Gate, 14 ... Heat-resistant elastic roller, 15 ... Heat roller, 16, 18, 19, 20, 21, 22, 23, 24 ... Conveyance roller, 12, 13 ... Scraper, 50 ... Banknote handling device, 30 ... Deposit / withdrawal port, 31 ... Wrinkle stretching mechanism, 32, 33 ... Denomination box, 34 ... Banknote cassette, 41 ... Separator, 35 ... Temporary stacking unit, 40 ... Reject box, 36 ... Two-sheet detector, 37 ... Discrimination unit 38 ... conveyance path, 39 ... forgotten collection box.

Claims (4)

  A transport mechanism for transporting the banknotes in the transport path, a first wrinkle stretching section that stretches the wrinkles of the banknotes in a direction orthogonal to the transport direction of the banknotes, and a heat roller that handles the banknotes processed by the first wrinkle stretching sections. A wrinkle-stretching mechanism having a second wrinkle-stretching section that is heated and pressed by an elastic roller, a transport path switching section that switches the transport of banknotes from the transport path to the wrinkle-stretching mechanism, and a thickness detection that detects the thickness of the banknotes And a control unit that controls the transport path switching unit according to the output of the thickness detection unit.   The banknote handling apparatus according to claim 1, wherein rotation speeds of the heat roller and the elastic roller are changed according to an output of the thickness detection unit.   In the wrinkle stretching method of the banknote that stretches the wrinkles of the banknotes transported in the banknote handling device, the thickness of the banknotes being transported is detected, and the banknotes are transported to the wrinkle stretching mechanism according to the detected thickness information of the banknotes, A method for wrinkling a banknote, characterized in that the wrinkle of a banknote is stretched in a direction perpendicular to the banknote conveyance direction, and then heated and pressed by a heat roller and an elastic roller.   4. The wrinkle stretching method according to claim 3, wherein the rotation speeds of the heat roller and the elastic roller are changed according to thickness information of the banknote.

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