JP2015041161A - Paper sheet identification device and paper sheet processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect information from a paper sheet with high accuracy, while reducing an occurrence of a transfer failure.SOLUTION: A paper sheet identification device 10 is placed at a distance shorter than a length of a paper sheet P of a conveyance object, and is provided with: a first conveyance mechanism 11 and a second conveyance mechanism 12 for conveying the paper sheet P; and a magnetic sensor 13 provided between the first conveyance mechanism 11 and the second conveyance mechanism 12 and detecting magnetic information from the paper sheet P. The paper sheet identification device 10 faces the magnetic sensor 13, and is insertably arranged with the paper sheet P with the magnetic sensor 13, and includes a first guide member 14 capable of giving to the paper sheet P a force of a conveyance direction D1 which directs toward the second conveyance mechanism 12 from the first conveyance mechanism 11. The paper sheet identification device 10 includes a second guide member 15 which approaches the magnetic sensor 13 from a detection limit position of the magnetic sensor 13 in an opposite direction of the magnetic sensor 13 and is placed further away from the first guide member 14 for the magnetic sensor 13 in the opposite direction of the magnetic sensor 13.

Description

  Embodiments described herein relate generally to a paper sheet identification apparatus and a paper sheet processing apparatus.

  Conventionally, in order to convey paper sheets while identifying them, a technique for conveying paper sheets in an unconstrained state and detecting magnetic information for identification provided on the paper sheets by a magnetic sensor is known. Yes.

JP 2005-18177 A

  However, when the unconstrained paper sheet is guided only by the fixed guide, the transport speed of the paper sheet may be reduced due to the frictional resistance between the paper sheet and the fixed guide, which may cause a transport failure. In addition, when a roller that imparts a conveyance force to an unconstrained paper sheet is also used as a fixed guide to suppress a decrease in conveyance speed, visual inspection of the conveyance path and access to the conveyance path are blocked by the roller. Therefore, maintenance work such as periodic inspection, parts replacement, and jam recovery may become difficult.

  The paper sheet identification apparatus according to the present embodiment is disposed at a distance shorter than the length of a paper sheet to be transported, and includes a first transport mechanism and a second transport mechanism that transport the paper sheet, and the first transport mechanism. The paper sheet is provided between the transport mechanism and the second transport mechanism, and detects the information from the paper sheet. The paper sheet is disposed between the information detection means and the information detection means. A first guide member arranged to be insertable and capable of applying a force in the transport direction from the first transport mechanism toward the second transport mechanism to the paper sheet, and opposed to the information detection means, and the information detection Arranged in the direction opposite to the information detection means from the detection limit position of the information detection means and close to the information detection means, and spaced apart from the first guide member relative to the information detection means in the direction opposite to the information detection means And a pair of the information detection means Comprising a second guide member for regulating the position of the paper sheet in the direction, and wherein the.

It is a side view which shows typically the structure at the time of seeing the paper sheet identification device of embodiment from the direction parallel to a conveyance reference plane and orthogonal to a conveyance direction. It is a side view which shows typically the structure at the time of seeing the paper sheet identification device of embodiment from the normal line direction of a conveyance reference plane. It is an expanded block diagram which expands and shows the 1st guide member and 2nd guide member which are shown in FIG. It is a side view which shows typically the structure at the time of seeing the paper sheet identification device of the 1st modification of embodiment from the direction parallel to a conveyance reference plane and orthogonal to a conveyance direction. It is a side view which shows typically the structure at the time of seeing the paper sheet identification device of the 2nd modification of embodiment from the direction parallel to a conveyance reference plane and orthogonal to a conveyance direction. It is a side view which shows typically the structure at the time of seeing the paper sheet identification device of the 2nd modification of embodiment from the direction parallel to a conveyance reference plane and orthogonal to a conveyance direction. It is a side view which shows typically the structure at the time of seeing the paper sheet identification device of the 3rd modification of embodiment from the direction parallel to a conveyance reference plane and orthogonal to a conveyance direction. It is a side view which shows typically the structure at the time of seeing the paper sheet identification device of the 3rd modification of embodiment from the direction parallel to a conveyance reference plane and orthogonal to a conveyance direction. It is a side view which shows typically the structure at the time of seeing the paper sheet identification device of the 4th modification of embodiment from the direction parallel to a conveyance reference plane and orthogonal to a conveyance direction. It is a perspective view which shows typically the external appearance of a paper sheet processing apparatus provided with the paper sheet identification apparatus of embodiment. It is a block diagram which shows typically the internal structure of a paper sheet processing apparatus provided with the paper sheet identification device of embodiment. It is a block diagram which shows roughly the structure of the control system of a paper sheet processing apparatus provided with the paper sheet identification device of embodiment.

Hereinafter, a paper sheet identification apparatus and a paper sheet processing apparatus according to an embodiment will be described with reference to the accompanying drawings.
(Configuration of paper sheet processing equipment)
FIG. 10 and FIG. 11 are diagrams schematically showing an external appearance and an internal configuration of a paper sheet processing apparatus 111 including the paper sheet identification apparatus 10 of the present embodiment. This paper sheet processing apparatus 111, for example, inspects banknotes sent from each branch of a plurality of banks as paper sheets to be processed, and binds and reuses only reusable banknotes. To serve.

  As shown in FIGS. 10 and 11, the paper sheet processing apparatus 111 has a supply unit 112 capable of arranging a plurality of stacked banknotes at a first end in a first direction (for example, the width direction). It has. The paper sheet processing apparatus 111 sequentially takes out the banknotes at the upper end (that is, the uppermost end) in the stacking direction one by one from the plurality of stacked banknotes arranged in the supply unit 112 at the upper part of the supply unit 112. An extraction portion 113 is provided. The take-out unit 113 includes a suction roller 114 that contacts the uppermost one banknote and rotates while sucking the banknote by a negative pressure. For example, the suction roller 114 can take out one banknote every rotation, and sequentially takes out one banknote from a plurality of stacked banknotes at regular time intervals.

  The sheet processing apparatus 111 includes a banknote transport path 115 provided so as to extend from the take-out unit 113 toward the downstream side in the take-out direction. The conveyance path 115 includes a conveyance belt (not shown), a drive pulley (not shown), a motor (not shown) for running the conveyance belt, and the like, and conveys the banknotes taken out by the suction roller 114 at a constant speed.

The paper sheet processing apparatus 111 detects the optical and magnetic characteristic information of the banknotes conveyed on the conveyance path 115, and inspects the type of banknotes, fouling loss, front and back, authenticity, etc. An inspection unit 116 is provided.
The inspection unit 116 includes two first and second image reading devices 117a and 117b that are arranged so as to be able to read images on the front and back surfaces of the banknotes being conveyed on the conveyance path 115. Each of the two first and second image reading devices 117a and 117b includes, for example, an image sensor such as a CCD camera, and a pattern image on the front or back surface of the banknote is obtained from an image obtained by imaging with the image sensor. read.
The inspection unit 116 includes a shape / watermark detection device 118 that detects the shape of a banknote being conveyed on the conveyance path 115 and a watermark image.
The inspection unit 116 includes a magnetic detection device 116 </ b> A that detects magnetic characteristic information of banknotes being conveyed on the conveyance path 115.
The inspection unit 116 includes a thickness inspection unit 119 that inspects the thickness of banknotes conveyed on the conveyance path 115. The thickness inspection unit 119 determines whether or not a plurality of banknotes are taken out at a time by the takeout unit 113 based on the thickness of the banknote to be inspected.

The paper sheet processing apparatus 111 includes, for example, six first to sixth gates 125 to 125 that are sequentially arranged on the conveyance path 115 on the downstream side of the inspection unit 116 in the banknote conveyance direction. Each of the six first to sixth gates 125 to 125 switches the guide direction of banknotes according to control based on the inspection result of the inspection unit 116.
The first gate 120 provided immediately after the downstream side of the inspection unit 116 in the banknote conveyance direction is disposed at a branch point where an exclusion conveyance path 126 branched from the conveyance path 115 is provided. The first gate 120 guides, to the reject conveyance path 126, the rejected ticket detected by the inspection unit 116 as not being a legitimate bank note, the uninspectable ticket that could not be inspected by the inspection unit 116, and the like.

  The paper sheet processing apparatus 111 includes an exclusion stacking unit 127 at the end of the exclusion transport path 126. The exclusion stacking unit 127 is in a state in which the posture of the banknotes taken out by the taking-out unit 113 is maintained, that is, a state in which the arrangement of the front and back sides is not reversed (actually rotated 360 °) and taken out by the taking-out unit 113 Accumulate rejected tickets and non-inspectable tickets while maintaining the order of multiple banknotes. In addition to the rejected ticket and the non-inspectable ticket, the exclusion stacking unit 127 accumulates the uncheckable ticket, the counterfeit ticket, and the like that are taken out by the take-out unit 113 in a state where a plurality of banknotes overlap each other.

The sheet processing apparatus 111 includes first to fourth stacking / binding sections 128 to 131 (collectively, stacking / binding section 132) at positions branched from the conveyance path 115 by the second to fifth gates 121 to 124. It has. The first to fourth stacking / bundling units 128 to 131 can be reused among regular banknotes (that is, banknotes other than rejected tickets and non-inspectable tickets) guided to the conveyance path 115 by the first gate 120. Collect only the correct tickets and bind them together.
For example, the first and second stacking / binding units 128 and 129 stack and bundle 100 sheets of regular bills whose surfaces are directed vertically upward, and the third and fourth stacking / binding units 130 and 131 are: 100 sheets of genuine bills with the back surface vertically upward are stacked and bound. More specifically, after the first stacking / binding unit 128 stacks 100 correct tickets, the second stacking / binding unit 129 has the next 100 sheets when the 100 correct tickets are bound. Accumulate official tickets. The correct bills bound by the stacking / binding unit 132 in this manner are discharged to the outside of the paper sheet processing apparatus 111 by a conveyor (not shown) or the like and are reused.

  The sheet processing apparatus 111 includes a cutting unit 133 at a position branched from the transport path 115 by a sixth gate 125 provided on the most downstream side in the banknote transport direction. The cutting unit 133 is a normal banknote guided to the transport path 115 by the first gate 120 and is not collected by the stacking / binding unit 132. Banknotes determined to be non-reusable are stored after being cut and expired. In addition, when the non-paying sheet cutting mode is not selected by the main control unit 151 to be described later, the non-printing sheets are not conveyed to the cutting unit 133 but are accumulated in the stacking unit 134 for collecting non-use tickets.

The paper sheet processing apparatus 111 includes an operation unit 136 that can be operated by an operator around the supply unit 112. The operation unit 136 includes an operation / display panel 137 that accepts various operation inputs from the operator and displays various operation guidance for the operator. The operation / display panel 137 includes, for example, a touch panel that detects an input of a button when an operator touches the button displayed on the screen.
In the vicinity of the operation / display panel 137, the paper sheet processing apparatus 111 has a door 138 having a handle 138a that opens and closes a banknote slot of the supply unit 112, and a take-out unit for taking out banknotes accumulated in the exclusion stacking unit 127. An exit 139 and a keyboard 140 operated by an operator are provided.

FIG. 12 is a diagram schematically showing the configuration of the control system of the paper sheet processing apparatus 111 of the present embodiment. As shown in FIG. 12, the sheet processing apparatus 111 includes a main control unit 151 in addition to the main control unit 151, the inspection unit 116 connected to the main control unit 151, the operation / display panel 137, and the keyboard 140. A transport control unit 152 and an accumulation / bundling control unit 153 connected to each other.
The main control unit 151 controls the transport control unit 152 and the stacking / binding control unit 153 based on an instruction output from the operation / display panel 137 in accordance with an operation input from the operator, an inspection result of the inspection unit 116, and the like. .
The transport control unit 152 controls the take-out unit 113, the transport path 115, the exclusion transport path 126, and the first to sixth gates 125 to 125 based on the control of the main control unit 151, thereby taking out banknotes and transport control. To do.
The stacking / binding controller 153 controls the exclusion stacking unit 127 and the first to fourth stacking / binding units 128 to 131 based on the control of the main control unit 151, thereby performing banknote stacking and binding control.

(Operation of paper sheet processing equipment)
The paper sheet processing apparatus 111 of the present embodiment has the above-described configuration. Next, the operation of the paper sheet processing apparatus 111 will be described.
First, when the door 138 is opened manually by the operator and a plurality of banknotes collected together are arranged in the supply unit 112, the take-out unit 113 starts driving. The take-out unit 113 sequentially takes out the banknotes at the upper end in the stacking direction one by one from the plurality of stacked banknotes arranged in the supply unit 112 onto the transport path 115.
Then, a conveyance belt (not shown), a drive pulley (not shown), and the like of the conveyance path 115 convey the banknotes on the conveyance path 115 toward the inspection unit 116.

Then, the inspection unit 116 detects the optical and magnetic characteristic information of the banknotes conveyed on the conveyance path 115, and inspects the types of banknotes, fouling loss, front and back, authenticity, and the like.
For example, when only one bank note is normally taken out by the take-out unit 113, the first image reading device 117a of the inspection unit 116 reads an image on the surface of the bank note being conveyed on the conveyance path 115. Further, the second image reading device 117b of the inspection unit 116 reads an image on the back surface of the banknote being conveyed on the conveyance path 115. For example, when a plurality of banknotes are taken out by the take-out unit 113, the first and second image reading devices 117a and 117b read the images on the front and back surfaces of the banknotes at both ends in the stacking direction.
The two first and second image reading devices 117a and 117b store images read from the banknotes in a memory (not shown) in the inspection unit 116. The image stored in the memory is displayed to the operator via the operation / display panel 137 as necessary. In the present embodiment, among the banknotes taken out by the takeout unit 113, only the images of the banknotes accumulated in the exclusion stacking unit 127 are stored in the memory. The image stored in the memory can be switched and displayed by a predetermined operation on the operation / display panel 137.

  The inspection unit 116 detects the image read by the two first and second image reading devices 117a and 117b, the shape and watermark image of the banknote detected by the shape / watermark detection device 118, and the magnetic detection device 116A. Based on the magnetic characteristic information of the banknote and the thickness of the banknote inspected by the thickness inspection unit 119, it is determined whether or not the banknote is a regular banknote. When it is determined that the banknote is a regular banknote in the determination result, the inspection unit 116 further determines whether the banknote is a reusable genuine ticket. In this determination result, when it is determined that the banknote is a reusable genuine ticket, the main control unit 151 changes the guidance direction of the banknote by the first gate 120 toward the stacking / binding unit 132. Switch to the direction. The main control unit 151 then directs the banknote guidance direction by any one of the second to fifth gates 121 to 124 toward the first to fourth stacking / binding units 128 to 131. Switch to. As a result, the correct ticket guided to the transport path 115 via the first gate 120 is accumulated in any one of the first to fourth stacking / binding sections 128 to 131.

In the present embodiment, the main control unit 151 uses, for example, a first note whose surface pattern is detected by the first image reading device 117a, that is, a first note conveyed with the surface facing upward in the stacking direction. And it accumulates in any one of the 2nd accumulation / binding part 128,129. Then, the correct sheet whose back surface pattern is detected by the second image reading device 117b, that is, the correct sheet conveyed with the back surface facing downward in the stacking direction, is stored in the third and fourth stacking / binding units 130 and 131. It accumulates in either one. As a result, the main control unit 151 prepares the front and back of the correct ticket.
The main control unit 151, for example, accumulates the correct bills whose surfaces are directed upward in the stacking direction on the first stacking / binding unit 128, and when the correct stack of the first stacking / binding unit 128 reaches 100 sheets, for example. Bundle these 100 correct tickets, and start collecting correct tickets to the second stacking / binding unit 129, and 100 correct tickets to each of the first and second stacking / binding units 128, 129. It accumulates and binds alternately.

  When the inspection unit 116 determines that the banknote is a non-reusable banknote, the main control unit 151 switches the guidance direction of the banknote (slippery) by the sixth gate 125 to the cutting unit 133. . As a result, the cutting unit 133 cuts the non-performing ticket and expires. The main control unit 151 counts and sums up the number of the collected and bundled genuine bills and the number of the damaged bills expired after cutting.

Further, when the inspection unit 116 determines that the banknote is not a regular banknote, the main control unit 151 switches the banknote guidance direction by the first gate 120 to the exclusion conveyance path 126. Further, the inspection unit 116 determines whether or not the banknote determined to be not a regular banknote is another medium. In this determination result, when the banknote determined not to be a legitimate banknote is not another medium, that is, from any image read by the first and second image reading devices 117a and 117b, If it is determined that the banknote is not present, the inspection unit 116 is removed in a state in which the banknote is not a regular banknote (for example, a counterfeited exclusion ticket) or a plurality of banknotes overlapped. Judged as a bank note. Accordingly, the main control unit 151 accumulates the banknotes guided to the exclusion transport path 126 in the exclusion stacking unit 127 as they are.
On the other hand, when the inspection unit 116 determines that the banknote being transported is another medium (for example, a foreign object), the main control unit 151 stops the banknote transport and excludes the banknote being transported. Stop on the transport path 126. Thereby, the banknotes stopped on the removal conveyance path 126 (that is, banknotes determined to be other media) are taken out and confirmed by the operator, and are processed manually.

(Configuration of paper sheet identification device)
Hereinafter, the paper sheet identification apparatus 10 provided in the paper sheet processing apparatus 111 will be described in detail.
FIG. 1 and FIG. 2 are diagrams schematically showing the configuration of the paper sheet identification apparatus 10, and FIG. 3 is an enlarged view showing a part of the paper sheet identification apparatus 10.
The paper sheet identification device 10 of the present embodiment constitutes at least a part of the magnetic detection device 116A of the inspection unit 116 of the paper sheet processing device 111 described above, and as shown in FIG. 1 and FIG. A mechanism 11, a second transport mechanism 12, a magnetic sensor 13, a first guide member 14, and a second guide member 15 are provided.

  The first transport mechanism 11 and the second transport mechanism 12 are paper sheets P to be transported in a transport direction D1 parallel to the transport reference plane A set between the first transport mechanism 11 and the second transport mechanism 12. It is arranged at a distance shorter than the length of.

  The first transport mechanism 11 is attached to each of the pair of first transport rollers 21 a and 21 b and the pair of first transport rollers 21 a and 21 b and is bent back in a direction away from the second transport mechanism 12. A combination of the pair of first conveying belts 22a and 22b is used as one set of first conveying unit 23, and a plurality of sets, for example, two sets of first conveying units 23 and 23 are provided. The two sets of first transport units 23 and 23 are parallel to the transport reference plane A and perpendicular to the transport direction D1 (that is, the width direction of the paper sheet P and a pair of first transport rollers 21a and 21b. Are arranged at a predetermined interval in an axial direction D3) parallel to the respective rotation axes.

The pair of first transport rollers 21a and 21b are arranged so that their rotation axes are arranged parallel to the axial direction D3 and arranged at a predetermined interval in an orthogonal direction D2 orthogonal to the transport reference plane A. Oppositely arranged in the direction D2.
The pair of first transport belts 22a and 22b is driven by a motor (not shown) or the like with the paper sheet P sandwiched from both sides in the thickness direction between the pair of first transport rollers 21a and 21b. Thereby, the transport force in the transport direction D1 parallel to the direction from the first transport mechanism 11 to the second transport mechanism 12 is applied to the paper sheet P.

The second transport mechanism 12 is mounted on each of the pair of second transport rollers 31 a and 31 b and the pair of second transport rollers 31 a and 31 b and is bent back in a direction away from the first transport mechanism 11. A combination of the pair of second transport belts 32a and 32b is used as one set of the second transport unit 33, and a plurality of sets, for example, two sets of the second transport units 33 and 33 are provided. The two sets of the second transport units 33 and 33 are parallel to the transport reference plane A and perpendicular to the transport direction D1 (that is, the width direction of the paper sheet P and a pair of second transport rollers 31a and 31b. Are arranged at a predetermined interval in an axial direction D3) parallel to the respective rotation axes.
The pair of second transport rollers 31a and 31b are arranged so that their rotation axes are arranged parallel to the axial direction D3 and arranged at a predetermined interval in an orthogonal direction D2 orthogonal to the transport reference plane A. Oppositely arranged in the direction D2.
The pair of second transport belts 32a and 32b is driven by a motor (not shown) or the like with the paper sheet P sandwiched from both sides in the thickness direction between the pair of second transport rollers 31a and 31b. Thus, the conveyance force in the conveyance direction D1 is applied to the paper sheet P.

The first transport mechanism 11 and the second transport mechanism 12 include a pair of first transport belts 22a and 22b and a second pair as the pair of first transport rollers 21a and 21b and the second transport rollers 31a and 31b rotate. The outer peripheral speeds of the conveyor belts 32a and 32b are set to be the same.
The first transport mechanism 11 and the second transport mechanism 12 include a terminal position a for sandwiching the paper sheet P by the pair of first transport belts 22a and 22b, and a paper sheet by the pair of second transport belts 32a and 32b. A non-holding area Z for the paper sheet P is defined between the P-end sandwiching start position d. The position and shape of the paper sheet P in the non-holding region Z are maintained by the rigidity and air resistance of the paper sheet P itself. The first transport mechanism 11 and the second transport mechanism 12 set the length of the non-holding area Z in the transport direction D1 to be shorter than the length of the paper sheet P. Accordingly, at least one of the first transport mechanism 11 and the second transport mechanism 12 can always apply a transport force to the paper sheet P being transported.

The magnetic sensor 13 is arranged so that the detection surface 13A faces the surface direction of the paper sheet P conveyed to the non-holding area Z (that is, the orthogonal direction D2 orthogonal to the conveyance reference surface A), and the vicinity of the detection surface 13A is arranged. Magnetic characteristic information (magnetic information) of the passing paper sheet P is detected. For example, the detection surface 13A of the magnetic sensor 13 is formed larger than the width dimension of the paper sheet P in the axial direction D3 (that is, the width direction of the paper sheet P). The magnetic sensor 13 uses a distance from the detection surface 13A in the orthogonal direction D2 to a predetermined detection limit position as a detection limit gap amount XG.
The conveyance reference plane A includes, for example, a predetermined detection reference point set on the detection axis of the magnetic sensor 13 extending in parallel to the orthogonal direction D2 from the detection surface 13A of the magnetic sensor 13, and is orthogonal to the detection axis. It is assumed to be a plane.

The first guide member 14 is a movable guide using, for example, a circular belt having a circular cross section. The first guide member 14 includes at least one or more, for example, two round belts 41a and 41b. The first guide member 14 is formed on the conveyance reference plane A among the pair of first conveyance rollers 21a and 21b and the second conveyance rollers 31a and 31b. On the other hand, it is stretched over the first pulley portion 21A of the first transport roller 21a and the second pulley portion 31A of the second transport roller 31a disposed on the opposite side of the magnetic sensor 13.
Note that the first pulley portion 21A includes the first conveying rollers 21a, 21a between the first conveying rollers 21a, 21a of the two sets of first conveying portions 23, 23 that are spaced apart from each other in the axial direction D3. The rotating shaft 21c common to 21a is integrally provided. The second pulley unit 31A is arranged between the second conveyance rollers 31a and 31a of the two sets of second conveyance units 33 and 33 that are spaced apart from each other in the axial direction D3. A common rotation shaft 31c is integrally provided.

The two round belts 41a and 41b of the first guide member 14 are disposed at a predetermined interval apart in the axial direction (that is, the width direction of the paper sheet P) D3, and in the non-holding region Z, the orthogonal direction D2 The sheet P is disposed so as to be opposed to the magnetic sensor 13 and to be inserted between the magnetic sensor 13 and the magnetic sensor 13. The two round belts 41a and 41b of the first guide member 14 can apply a transport force in the transport direction D1 to the paper sheet P as the first pulley portion 21A and the second pulley portion 31A rotate.
Note that the first pulley portion 21A and the second pulley portion 31A include, for example, each pair of first transport belts 22a, 21b and each pair of first transport belts 22a, 21b and the second transport rollers 31a, 31b. 22b and the outer peripheral speeds of the second conveying belts 32a and 32b and the outer peripheral speeds of the respective round belts 41a and 41b of the first guide member 14 accompanying the rotation of the first pulley part 21A and the second pulley part 31A are the same. It has an arbitrary shape (for example, an outer diameter).

The two round belts 41a and 41b of the first guide member 14 are arranged such that the distance from the magnetic sensor 13 is greater than zero during the maximum vibration in the orthogonal direction D2 facing the magnetic sensor 13. Yes.
As shown in FIG. 3, when the maximum amplitude of vibration of the two round belts 41a and 41b during operation of the paper sheet processing apparatus 111 is set to ± ΔX1, the magnetic sensor 13 sandwiches the conveyance reference surface A at the time of attachment reference. The two round belts 41a and 41b disposed on the opposite side of the detection surface 13A by a distance X1 are set so as to satisfy the following formula (1).

  Further, as shown in FIG. 2, the two round belts 41a and 41b of the first guide member 14 have two sets of the first transport units 23 and 23 and the second transport unit 33, as viewed from the axial direction D3. Each pair of first transport belts 22a and 22b and second transport belts 32a and 32b of 33 is provided so as to overlap in the transport direction D1. Thus, the two round belts 41 a and 41 b of the first guide member 14 can contact the paper sheet P over the entire non-holding region Z.

The second guide member 15 is a fixed guide member formed in a plate shape with, for example, a nonmagnetic or weakly magnetic metal. Nonmagnetic metals are, for example, Al alloy, Ti alloy, and stainless steel. The second guide member 15 is composed of at least one or more, for example, two plate-like members 51a and 51b. The second guide member 15 is opposed to at least the detection surface 13A of the magnetic sensor 13 in the non-holding region Z, and between the magnetic sensor 13 and paper. It arrange | positions so that the leaf P can be inserted. In addition, the two plate-like members 51a and 51b of the second guide member 15 are disposed so as to sandwich the two pairs of the first transport unit 23 and 23 and the second transport unit 33 and 33 from both sides in the axial direction D3, for example. Has been.
The two plate-like members 51a and 51b of the second guide member 15 are close to the magnetic sensor 13 from the detection limit position of the magnetic sensor 13 in the opposing direction of the magnetic sensor 13 (that is, the orthogonal direction D2), and in the orthogonal direction D2. Thus, the magnetic sensor 13 is disposed away from the first guide member 14 and regulates the position of the paper sheet P in the orthogonal direction D2.
As shown in FIG. 3, the two plate-like members 51a and 51b of the second guide member 15 have opposing surfaces 51A and 51B facing the detection surface 13A of the magnetic sensor 13 with the conveyance reference surface A in the orthogonal direction D2. I have. A distance X2 between the facing surfaces 51A and 51B and the detection surface 13A of the magnetic sensor 13 is set to satisfy the following formula (2) with respect to the detection limit gap amount XG of the magnetic sensor 13. Furthermore, the distance X2 is set so as to satisfy the following formula (3) with respect to the distance X1 of the first guide member 14 at the time of attachment reference.

  As shown in FIG. 2, the two plate-like members 51 a and 51 b of the second guide member 15 are each composed of two sets of the first transport units 23 and 23 and the second transport unit 33, as viewed from the axial direction D <b> 3. Each pair of first transport belts 22a and 22b and second transport belts 32a and 32b of 33 is provided so as to overlap in the transport direction D1. Thereby, the two plate-like members 51a and 51b of the second guide member 15 can regulate the position of the paper sheet P in the orthogonal direction D2 over the entire non-holding region Z.

(Operation of paper sheet identification device)
The paper sheet identification device 10 according to the present embodiment has the above-described configuration. Next, the operation of the paper sheet identification device 10 will be described.
In the following, a plurality of paper sheets P to be transported are transported one by one at appropriate intermittent timings such as a predetermined cycle.

  First, the first transport mechanism 11 receives the paper sheet P by the pair of first transport belts 22a and 22b between the pair of first transport rollers 21a and 21b of the two pairs of first transport units 23 and 23. Insert from both sides in the thickness direction. Then, by driving the pair of first transport belts 22a and 22b accompanying the rotation of the pair of first transport rollers 21a and 21b, the sheet P is first moved from the first transport mechanism 11 toward the transport direction D1. It is sent out to the non-holding area Z between the transport mechanism 11 and the second transport mechanism 12. As a result, the leading edge of the paper sheet P that has entered the non-holding area Z is a free end in a non-holding state, and is transported in the transport direction D1 in a shape and position according to the rigidity of the paper sheet P itself.

The two round belts 41a and 41b of the first guide member 14 are driven by the rotation of the first pulley portion 21A and the second pulley portion 31A and come into contact with the round belts 41a and 41b in the non-holding region Z. A transport force in the transport direction D1 is applied to the paper sheet P by friction.
In addition, the two plate-like members 51a and 51b of the second guide member 15 are positioned in the orthogonal direction D2 of the paper sheet P in contact with the opposing surfaces 51A and 51B of the plate-like members 51a and 51b in the non-holding region Z. regulate.

More specifically, when vibration in the orthogonal direction D2 of the two round belts 41a and 41b of the first guide member 14 is small and satisfies the following formula (4), the paper sheet P has two round belts 41a and 41a, The position in the orthogonal direction D2 is regulated by the two round belts 41a and 41b while the conveyance force can be applied by 41b. As a result, the paper sheet P is regulated such that at least the distance from the detection surface 13A of the magnetic sensor 13 in the orthogonal direction D2 is equal to or smaller than the detection limit gap amount XG of the magnetic sensor 13.
On the other hand, if the vibration in the orthogonal direction D2 of the two round belts 41a and 41b of the first guide member 14 is large and satisfies the following formula (5), the paper sheet P is intermittently connected by the two round belts 41a and 41b. In particular, the position in the orthogonal direction D2 is regulated by the two plate-like members 51a and 51b of the second guide member 15 while the conveying force can be applied. As a result, the paper sheet P is regulated such that at least the distance from the detection surface 13A of the magnetic sensor 13 in the orthogonal direction D2 is equal to or smaller than the detection limit gap amount XG of the magnetic sensor 13.

The magnetic sensor 13 starts detection when the leading edge of the paper sheet P reaches a predetermined detection range, and detects magnetic information from the paper sheet P.
Then, when the leading edge of the paper sheet P enters the second transport mechanism 12 from the non-holding area Z, the second transport mechanism 12 includes a pair of second transport rollers 31a of the two pairs of second transport units 33 and 33. , 31b, a pair of second conveying belts 32a and 32b sandwich the paper sheet P from both sides in the thickness direction. Then, by driving each pair of second transport belts 32a and 32b accompanying rotation of each pair of second transport rollers 31a and 31b, the paper sheet P is moved outward from the second transport mechanism 12 in the transport direction D1. Send it out. As a result, the paper sheet P is not in a state where the rear end side is sandwiched between the pair of first transport belts 22a and 22b and the front end side is sandwiched between the pair of second transport belts 32a and 32b. It is transported in the transport direction D1 while being arranged over the entire holding area Z.

Then, when the rear end of the paper sheet P enters the non-holding area Z from the first transport mechanism 11, the rear end of the paper sheet P is set as a free end in a non-holding state, and the rigidity of the paper sheet P itself, etc. Is conveyed in the conveyance direction D1 with the shape and position according to the above.
The magnetic sensor 13 ends the detection when the rear end of the paper sheet P passes through a predetermined detection range.
When the rear end of the paper sheet P enters the second transport mechanism 12 from the non-holding area Z, the second transport mechanism 12 moves the rear end of the paper sheet P from the second transport mechanism 12 toward the transport direction D1. Send out. Thereby, the conveyance of one sheet P is completed.

  As described above, according to the paper sheet identification device 10 according to the present embodiment, by using the first guide member 14 and the second guide member 15 together, the transport force in the transport direction D1 with respect to the paper sheet P can be obtained. While being applied, the relative position of the paper sheet P with respect to the magnetic sensor 13 can be easily held at an appropriate position. Thereby, it is possible to suppress the occurrence of a conveyance failure while accurately detecting the magnetic information of the paper sheet P.

For example, when the conveyance speed of the paper sheet P is increased, each pair of first conveyance belts 22a and 22b and second conveyance belts 32a and 32b, each pair of first conveyance rollers 21a and 21b, and second conveyance. As the rollers 31a and 31b, the motor (not shown), and the like rotate at high speed, the vibration of the paper sheet identification device 10 increases. In this case, even if the vibration of the two round belts 41a and 41b of the first guide member 14 increases, the position of the paper sheet P is regulated by the second guide member 15 according to the detection limit gap amount XG of the magnetic sensor 13. Therefore, it is possible to maintain the desired detection capability of the magnetic sensor 13 and improve the processing performance per unit time of the paper sheet identification device 10.
Further, for example, when the rigidity of the paper sheet P is high, even if the two round belts 41a and 41b of the first guide member 14 vibrate greatly due to the impact of the collision with the paper sheet P, the second guide member 15 restricts the position of the paper sheet P.

Furthermore, the combination of each of the round belts 41a and 41b of the first guide member 14 and each of the plate-like members 51a and 51b of the second guide member 15 is more expensive than the case where a platen roller or the like is used. It can be reduced and the apparatus can be miniaturized.
Furthermore, each round belt 41a, 41b of the first guide member 14 can be formed with a smaller surface area than, for example, a platen roller, and magnetic powder generated due to wear of other peripheral mechanisms is difficult to adhere. It can suppress that the detection capability of the magnetic sensor 13 falls.
Further, the combination of each of the round belts 41a and 41b of the first guide member 14 and each of the plate-like members 51a and 51b of the second guide member 15 is shielded against visual inspection of the conveyance path as compared with, for example, a platen roller. Can be suppressed, and maintenance work can be facilitated.

  Furthermore, according to the paper sheet processing apparatus 111 according to the present embodiment, by providing the paper sheet identification apparatus 10 according to the present embodiment, the paper sheet P is changed according to the accurate identification result of the paper sheet P. It can be processed properly.

(First modification)
In the above-described embodiment, for example, as in the first modification shown in FIG. 4, the second guide member 15 is a magnetic sensor in the non-holding region Z between the first transport mechanism 11 and the second transport mechanism 12. The position of the paper sheet P can be regulated only by the first area Za facing the area 13, and the paper sheet P may be provided in a non-contact manner in the second area Zb other than the first area Za.
The two plate-like members 51a and 51b of the second guide member 15 of the first modified example have opposing surfaces 51A and 51B facing the detection surface 13A of the magnetic sensor 13 only in the first region Za facing the magnetic sensor 13. I have. Then, the respective surfaces 52A, 52B continuous to the opposing surfaces 51A, 51B of the two plate-like members 51a, 51b are separated from the first area Za toward the first transport mechanism 11 in the non-holding area Z. Alternatively, the distance from the transport reference plane A in the orthogonal direction D2 is changed so as to increase as the distance from the first region Za toward the second transport mechanism 12 increases.
According to the first modified example, it is possible to reduce the frictional resistance between the paper sheet P and the second guide member 15 and to suppress a decrease in the conveyance speed of the paper sheet P.

(Second modification)
In the above-described embodiment, for example, as in the second modification shown in FIG. 5 or FIG. 6, the first transport mechanism 11 is configured such that the first guide member 14 from the opposite side of the first guide member 14 with respect to the transport reference plane A. The approach angle θ of the paper sheet P entering the transport reference plane A from the first transport mechanism 11 may be arranged to be an acute angle larger than zero.
For example, the 1st conveyance mechanism 11 of the 2nd modification shown in Drawing 5 serves as each 1st conveyance part 23 from between a pair of 1st conveyance rollers 21a and 21b in the upstream of conveyance direction D1 of paper sheets P. A pair of first conveying belts 22a and 22b that extend is provided with a roller 71 around which the first conveying belts 22a and 22b are wound. The roller 71 is disposed on the opposite side of the first guide member 14 with respect to the conveyance reference plane A, so that the pair of first conveyance belts 22a and 22b is inclined with respect to the conveyance reference plane A by the entry angle θ.

Further, for example, the first transport mechanism 11 of the second modification shown in FIG. 6 includes a pair of first transport rollers 21a, which are disposed as the first transport sections 23 so as to be shifted in a direction parallel to the transport reference plane A. 21b. Of the pair of first transport rollers 21a and 21b, the first transport roller 21a disposed on the opposite side of the magnetic sensor 13 with respect to the transport reference plane A is further away from the second transport mechanism 12 than the first transport roller 21b. Accordingly, the pair of first conveyor belts 22a and 22b are inclined with respect to the conveyance reference plane A by the entry angle θ.
According to these second modified examples, when the paper sheet P that has entered the non-holding region Z at the entrance angle θ contacts the round belts 41a and 41b of the first guide member 14, the round belts 41a and 41b. Therefore, it becomes easy to apply a conveying force in the conveying direction D1 due to friction to the paper sheet P.

(Third Modification)
In the above-described embodiment, the second guide member 15 may include the plate-like member 61a disposed obliquely with respect to the transport direction D1, as in the third modification shown in FIG. 7 or FIG. 8, for example. . Further, the second guide member 15 may include a plate-like member 61b having a shape bent or curved with respect to the transport direction D1.
For example, the second guide member 15 of the third modified example shown in FIG. 7 includes a pair of plate-like members that sandwich the two pairs of the first conveyance units 23 and 23 and the second conveyance units 33 and 33 from both sides in the axial direction D3. 61a and 61b are provided. For example, the plate-like member 61a is disposed at a position close to the first transport unit 23 in the axial direction D3, and is disposed at a position separated from the second transport unit 33 in the axial direction D3. Further, they are arranged obliquely with respect to the transport direction D1. For example, the plate-like member 61b is curved toward a position close to the first transport unit 23 in the axial direction D3, and is disposed at a position separated from the second transport unit 33 in the axial direction D3. .

Further, for example, the second guide member 15 of the third modified example shown in FIG. 8 includes a pair of plate-like members 61a and 61b, and each of two sets of second sets that are spaced apart at predetermined intervals in the axial direction D3. The first transfer units 23 and 23 and the second transfer units 33 and 33 are arranged. For example, the plate-like members 61a and 61b are disposed between the two sets of first transfer units 23 and 23 with respect to the two sets of first transfer units 23 and 23, and the two sets of second transfer units 33 and 33. Are arranged so as to sandwich the two sets of the second transport portions 33, 33 from both sides in the axial direction D3. And the plate-shaped member 61a is arrange | positioned diagonally with respect to the conveyance direction D1, and the plate-shaped member 61b is bent and arrange | positioned with respect to the conveyance direction D1.
According to these third modified examples, the second guide member 15 having an appropriate shape can be disposed at an appropriate position in accordance with the surrounding structures and the like, and the occurrence of the conveyance failure of the paper sheet P can be appropriately performed. Can be suppressed.

(Fourth modification)
In the above-described embodiment, the second guide member 15 with respect to the conveyance reference plane A set between the first conveyance mechanism 11 and the second conveyance mechanism 12, for example, as in a fourth modification shown in FIG. 9. A third guide member 80 may be provided on the opposite side. The third guide member 80 is disposed such that the distance from the conveyance reference plane A is equal to or greater than the distance between the conveyance reference plane A and the magnetic sensor 13, and regulates the position of the paper sheet P in the orthogonal direction D2.
The third guide member 80 is a fixed guide member formed in a plate shape from, for example, a nonmagnetic or weakly magnetic metal. The third guide member 80 includes at least one plate member 81a, 81b, for example. The plate-like member 81a disposed between the first transport mechanism 11 and the magnetic sensor 13 in the transport direction D1 (that is, on the upstream side of the magnetic sensor 13) has a distance from the transport reference plane A that is, for example, the transport reference plane A. And the distance between the magnetic sensor 13 and the detection surface 13A. For example, the plate-like member 81b disposed between the magnetic sensor 13 and the second transport mechanism 12 in the transport direction D1 (that is, on the downstream side of the magnetic sensor 13) has a distance from the transport reference plane A that is equal to the transport reference plane A, for example. And a distance between the magnetic sensor 13 and the detection surface 13A.
According to the fourth modification, for example, even when the paper sheet P is bent toward the detection surface 13A of the magnetic sensor 13 or the paper sheet P has low rigidity, the occurrence of a conveyance failure is suppressed. Can do.

  In addition, said embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  For example, in the above-described embodiment, the positions of the first guide member 14 and the second guide member 15 in the axial direction D3 can be set as appropriate. For example, for each of the first transport rollers 21a and 21a and the second transport rollers 31a and 31a, the first guide member 14 and the second guide member 15 are placed between the first transport rollers 21a and 21a and each second transport roller 31a. , 31b. Further, the first guide member 14 is disposed outside the first transport rollers 21a and 21a and the second transport rollers 31a and 31b in the axial direction D3, and the second guide member 15 is disposed on the first transport rollers 21a and 21a. You may arrange | position between each 2nd conveyance rollers 31a and 31b.

  For example, in the above-described embodiment, the first guide member 14 is not limited to the two round belts 41a and 41b, and may include one or three or more round belts. The second guide member 15 is not limited to the two plate-like members 51a and 51b, and may include one or three or more plate-like members. Further, the number of round belts provided in the first guide member 14 and the number of plate-like members provided in the second guide member 15 may be different.

  For example, in the above-described embodiment, the first guide member 14 may be driven by an actuator other than the first transport mechanism 11 and the second transport mechanism 12, for example, a dedicated motor.

  For example, in the above-described embodiment, the first guide member 14 may include a flat belt instead of the round belt.

  For example, in the above-described embodiment, instead of the magnetic sensor 13, another proximity sensor that detects an induced current, a capacitance, an ultrasonic wave, a photoelectric, or the like may be provided.

  For example, in the above-described embodiment, the first transport mechanism 11 and the second transport mechanism 12 may use a flat belt or a round belt for each pair of the first transport belts 22a and 22b and the second transport belts 32a and 32b. . Further, in the first transport mechanism 11 and the second transport mechanism 12, each pair of the first transport belts 22a and 22b and the second transport belts 32a and 32b may be omitted. The conveying force may be applied in a state where the paper sheet P is sandwiched from both sides in the thickness direction by the first conveying rollers 21a and 21b and the second conveying rollers 31a and 31b.

  For example, in the above-described embodiment, the outer peripheral speed of each of the round belts 41a and 41b of the first guide member 14 has a transport function with respect to the outer peripheral speeds of the first transport belts 22a and 22b and the second transport belts 32a and 32b. It may be different as long as it is not impaired. For example, the speed may be about 5% faster or slower than the outer peripheral speed of the first transport belts 22a and 22b and the second transport belts 32a and 32b.

DESCRIPTION OF SYMBOLS 10 Paper sheet identification apparatus 11 1st conveyance mechanism 12 2nd conveyance mechanism 13 Magnetic sensor 14 1st guide member 15 2nd guide member 41a, 41b Round belt 51a, 51b Plate-shaped member 80 3rd guide member 111 Paper sheet processing apparatus

Claims (12)

A first transport mechanism and a second transport mechanism which are disposed at a distance shorter than the length of the paper sheet to be transported, and transport the paper sheet;
An information detecting means provided between the first transport mechanism and the second transport mechanism for detecting information from the paper;
The paper sheet is disposed so as to be opposed to the information detection means and between the information detection means, and a force in a conveyance direction from the first conveyance mechanism to the second conveyance mechanism is applied to the paper sheets. A first guide member that can be applied;
Opposite to the information detection means, close to the information detection means from the detection limit position of the information detection means in the opposite direction of the information detection means, and to the information detection means in the opposite direction of the information detection means And a second guide member that is disposed apart from the first guide member and regulates the position of the paper sheet in the facing direction of the information detection means,
Comprising
A paper sheet identification device characterized by that. The first guide member is disposed such that a distance between the first detection member and the information detection unit is greater than zero at the time of maximum vibration in a direction opposite to the information detection unit.
The paper sheet identification apparatus according to claim 1. The first guide member includes a belt member that can contact the paper sheet while being rotationally driven by at least one of the first transport mechanism, the second transport mechanism, and another driving unit.
The paper sheet identification apparatus according to claim 1 or 2, wherein The first guide member is provided so as to overlap with at least one of the first transport mechanism and the second transport mechanism in the transport direction.
The paper sheet identification apparatus according to any one of claims 1 to 3, wherein The second guide member can regulate the position of the paper sheet only in the first area facing the information detection means between the first conveyance mechanism and the second conveyance mechanism, and other than the first area Is provided in a non-contact manner on the paper sheet in the second region of
The paper sheet identification device according to any one of claims 1 to 4, wherein The second guide member is provided so as to be able to regulate the position of the paper sheets over a region between the first transport mechanism and the second transport mechanism.
The paper sheet identification device according to any one of claims 1 to 4, wherein The second guide member is provided so as to overlap with at least one of the first transport mechanism and the second transport mechanism in the transport direction.
The paper sheet identification apparatus according to claim 6. The first guide member includes a plurality of guide members that are spaced apart from each other in the width direction of the paper sheet.
The paper sheet identification apparatus according to any one of claims 1 to 7, wherein On the opposite side of the second guide member with respect to the conveyance reference plane set between the first conveyance mechanism and the second conveyance mechanism, the distance from the conveyance reference plane is the conveyance reference plane and the information detection means. A third guide member that is disposed so as to be equal to or greater than the distance between the sheet and regulates the position of the paper sheet with respect to the conveyance reference plane,
The paper sheet identification apparatus according to any one of claims 1 to 8, wherein The information detection means includes a magnetic sensor,
The two guide members are made of non-magnetic or weak magnetic metal,
The paper sheet identification apparatus according to any one of claims 1 to 9, wherein The first transport mechanism is
From the opposite side of the first guide member to the first reference member with respect to the reference conveyance surface set between the first conveyance mechanism and the second conveyance mechanism, the first conveyance mechanism moves to the conveyance reference surface. It is arranged so that the approach angle of the paper sheet to enter is an acute angle greater than zero,
The paper sheet identification apparatus according to any one of claims 1 to 10, wherein the paper sheet identification apparatus is any one of the above. A paper sheet identification device according to any one of claims 1 to 11,
Sorting processing means for sorting and processing the paper sheets transported by the first transport mechanism and the second transport mechanism according to at least information on the paper sheets detected by the information detection means;
Comprising
The paper sheet processing apparatus characterized by the above-mentioned.

Images