JP2007302418A - Medium stacking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medium stacking device capable of stably stacking media even if they are broken or curled. <P>SOLUTION: The number of sheets of note is counted by a classification part for classifying thrown note. The translucency, reflected amount of light, and thickness of notes as the state characteristics of the notes are detected. A space for stacking of a temporary stacking part where the notes are stacked is controlled according to the state characteristics of these counted values. Consequently, even if the note is broken or curled, the space for stacking can be kept at a space for stacking, and the stable stacking can be controlled. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a medium stacking apparatus that transports loaded media and sequentially stacks them on a stacking plate, and moves the stacking plate when the amount of stacked media increases.

  2. Description of the Related Art Conventionally, in a banknote bundling apparatus installed in a financial institution such as a bank, banknotes inserted into the apparatus are conveyed one by one to a stacking unit and stacked one by one in a stacking unit, and a predetermined number of sheets are stacked. They are united and organized. The stacking unit includes a movable stacking plate, and the conveyed banknotes are stacked on the stacking plate one by one. An integrated height sensor is provided at the top of the stacking plate. When the stacking height sensor detects that the number of banknotes on the stacking plate has increased, the stacking plate is moved to free up the upper space of the stacked bills. The bills conveyed to the bank can be further accumulated.

As an apparatus having such a stacking unit, for example, one disclosed in Japanese Patent Laid-Open No. 2002-197509 can be cited.
JP 2002-197509 A

  However, in the conventional stacking unit control (stacking plate movement control), if the banknotes are folded or curled, the folded or curled banknotes swell at the time of stacking. In some cases, the height is increased and the accumulated height sensor detects the accumulated height of the predetermined number of sheets even though the accumulated banknotes have not reached the predetermined number. For this reason, there has been a problem that the control of making the space above the stacking portion constant cannot be performed stably.

  SUMMARY An advantage of some aspects of the invention is that it provides a medium stacking apparatus that can perform stacking stably even when the medium is bent or curled.

  In order to solve the above-described problems, the present invention counts the transported media in a media stacking apparatus that transports the loaded media and sequentially stacks them on the stacking plate, and moves the stacking plate when the number of stacked media increases. Counting means, state characteristic detecting means for detecting a state characteristic for each medium, and control means for controlling the movement of the integrated plate according to the counting result of the counting means and the detection result of the state detecting means. It is characterized by providing.

  According to the present invention, the movement of the stacking plate is controlled according to the counting result of the counting means and the detection result of the state characteristic detecting means. Therefore, even when the medium is bent or curled, the control according to the state characteristic is performed. And stable control becomes possible.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Elements common to the drawings are denoted by the same reference numerals. FIG. 1 is a schematic side view showing the internal structure of the banknote sorting apparatus according to the first embodiment, FIG. 2 is an enlarged view of the upper part of FIG. 1, and FIG. 3 shows the appearance of the banknote sorting apparatus according to the first embodiment. FIG. 4 is a partially enlarged plan view of FIG. In the embodiment described below, a bill arrangement device will be described as an example of a medium stacking device.

  In the figure, reference numeral 1 denotes a bill insertion part, which is provided in the upper part of the front of the apparatus. Reference numeral 2 denotes a discrimination unit for performing discrimination and counting of banknotes, denominations, correctness, front and back, etc., and detecting conveyance abnormality, and is provided in the apparatus. The discrimination unit 2 has a function of detecting the light permeability of bills, the amount of light reflection, and the bill thickness. Reference numeral 3 denotes a bill conveyance path, which will be described later. Reference numeral 4 denotes a front / back reversing section for reversing the front and back of a bill, and is provided so as to be located at the rear stage of the discrimination section 2 in the apparatus.

  Reference numeral 5 denotes an open pocket for accumulating banknotes of denominations not to be bound, and is provided on the upper surface of the apparatus. The banknotes accumulated in the open pocket 5 can be directly accessed by the operator. Reference numeral 6 denotes a stacking mechanism. In the present embodiment, the stacking mechanism 6 is provided with four temporary stacking units 6a to 6d arranged in a single vertical line in the apparatus, and predetermined for each temporary stacking unit 6a to 6d. In this embodiment, for example, 100 banknotes can be stacked. Note that the number of temporary stacking units is not limited to four.

  Reference numeral 7 denotes an operation unit provided on one side of the input unit 1. As shown in FIG. 4, the operation unit 7 has a counting start button 7 a for instructing counting of banknotes, and restarts the apparatus when the apparatus is recovered from a failure. There are provided a reset button 7b for performing the counting and a completion button 7c for instructing completion of counting and bundling processing. Reference numeral 8 denotes a reject pocket for collecting reject banknotes that have been identified by the discrimination unit 2 as having an unknown denomination or detected to have a conveyance abnormality. The reject pockets 8 are provided above the input unit 1 and are stacked in the reject pocket 8. Can be directly accessed by the operator. 9 is a transfer mechanism and 10 is a banknote bundling mechanism, both of which are provided in the apparatus, both of which will be described later.

  Reference numeral 11 denotes a banknote bundle outlet, and 12 denotes a door provided in front of the apparatus. The operator can access the stacking mechanism by opening the door 12. Reference numeral 13 denotes an operation display unit provided on the upper surface of the apparatus so as to be positioned behind the open pocket 5, and is configured by an LCD and a touch panel disposed on the surface thereof. The operator operates the operation display unit 13 to change the mode. Designation and setting of denomination, stacking order, and the like are performed on banknotes stacked in the temporary stacking units 6a to 6d. The operation display unit 13 also displays the denomination, correctness, and counting result of the banknotes identified by the discrimination unit 2.

  Here, the conveyance path 3 will be described. In the upper part of the apparatus, the conveyance path 3 is composed of 3a to 3e as shown in FIG. 2, the conveyance path 3a is provided so as to reach the branch point A from the input section 1 through the discrimination section 3, and the conveyance path 3b is branched. It is provided so as to reach the reject pocket from the point A. Further, the conveyance path 3c is provided so as to reach the branch point B from the branch point A through the front / back inversion part 4, and the conveyance path 3d extends from the branch point B to the lower part of the apparatus as shown in FIG. Along the temporary accumulation portions 6 a to 6 d of the accumulation mechanism 6, the conveyance path 3 e is further provided from the branch point B to the open pocket 5. A switching blade (not shown) for switching the bill conveyance direction is provided in the vicinity of each of the branch points A and B, and the operation is controlled by a control unit described later.

  FIG. 5 is a side view of the stacking mechanism 6. In the stacking mechanism 6, the four temporary stacking units 6a to 6d are arranged in the vertical direction as described above, and these temporary stacking units 6a to 6d have the same structure. The accumulation unit 6a will be described as an example. The banknotes transported by the transport path 3d are taken toward the stacking plate 21 by the sorting gate 27 of the temporary stacking unit 6a, and the banknotes that have entered the temporary stacking unit 6a are hit by the tapping wheel 20 and stacked. It is integrated on the plate 21. Further, the banknotes entering after that are stacked on the banknotes stacked on the stacking plate 21 by the same operation.

  FIG. 6 is a perspective view showing details of the temporary accumulating portion 6a. The banknotes that have entered the temporary stacking unit 6a are not only beaten by the tapping wheel 20, but are also aligned in the longitudinal direction by the longitudinal positioning means 22 provided on one side of the temporary stacking unit 6a. The position in the short direction is aligned by the short positioning means 23 provided on the front end side of 6a.

  Here, the longitudinal positioning mechanism 22 includes a motor 22a capable of rotating in both forward and reverse directions, and a rod or plate-like positioning member 22c connected to the motor via a connecting member 22b. Rotating the positioning member 22c by the motor 22a with the timing of a detection signal from an ingress sensor (not shown) that detects the incoming banknote, thereby aligning the banknote against the reference surface 25 installed on the opposite side. It has become. The short positioning mechanism 23 is composed of a rod-shaped member that is biased by a biasing means such as a torsion spring (not shown), and aligns by biasing the accumulated bills toward the entrance side. ing.

  A presser plate 24 is provided above the stacking plate 21 so as to be opposed to the presser plate 24. The presser plate 24 stands by at the upper end of the temporary stacking unit 6a during stacking of banknotes on the stacking plate 21 and is sequentially taken in. So as not to get in the way. When a predetermined number of banknotes, for example, 100 banknotes, are stacked on the stacking plate 21 of the temporary stacking unit 6a, the gate sorting mechanism 27 is operated so as not to take in banknotes, and the 101st and subsequent banknotes are Control is performed so as to accumulate in any of the other temporary accumulation units 6b to 6d.

  In the temporary stacking unit 6a where the banknotes have stopped entering, the stacking plate 21 is raised and the presser plate 24 is lowered to hold the stacked banknotes. With this operation, the thickness of banknotes having different stacking heights is made constant depending on the state of banknotes such as bags, and delivery to the moving mechanism 9 is facilitated. The bills sandwiched between the stacking plate 21 and the presser plate 24 are drawn out by a hand portion of the moving mechanism 9 described later entering the temporary stacking portion 6a from the short positioning mechanism 23 side. Since the temporary stacking units 6b to 6d have the same structure as the temporary stacking unit 6a, the banknotes can be aligned, stacked, and sandwiched in the same manner as the temporary stacking unit 6a.

  FIG. 7 is a perspective view showing the transfer mechanism 9. The transfer mechanism 9 includes a bill clamp unit 30, a clamp unit moving unit 31, and a vertical movement unit 32. The banknote clamp part 30 has clamp claws 35a and 35b that open and close in the vertical direction. The banknote clamp part 30 is mounted on the clamp part moving means 31, and is clamped by the clamp claws 35a and 35b from the temporary stacking parts 6a to 6d. When the banknote is clamped and pulled out, the clamp part moving means 31 pushes the clamp part 30 against the temporary stacking parts 6a to 6d and moves it to a position where 100 banknotes can be clamped.

  The clamp part 30 and the clamp part moving means 31 are moved up and down integrally between the temporary stacking parts 6a to 6d by the vertical movement means 32, and any one of the temporary stacking parts 6a to 6d in which the stacking of 100 bills is completed. It is controlled to stop before. For this reason, position sensors 33a to 33d are disposed in the frame of the vertical movement means 32 in correspondence with the positions of the temporary stacking units 6a to 6d. For example, banknotes stacked on the temporary stacking unit 6a are extracted. At this time, the clamp moving means 31 is pulled up by the vertical movement means 32 to the position of the position sensor 33a. The clamp unit moving mechanism 31 that has been pulled up needs to be fixed at this position while the clamp unit 30 removes the banknote from the temporary stacking unit 6a. Therefore, the stopper cam 34 that can be rotated at the position stopped by the position sensor 33a is provided with the clamp unit. It is locked to the moving means 31 to prevent the fall.

  A series of operations of the transfer mechanism 9 will be described. For example, when a banknote accumulated in the temporary stacking unit 6a is pulled out, the banknote clamping unit 30 is first moved up to the position of the position sensor 33a together with the clamp unit moving mechanism 31 by the vertical movement means 32. Then, the position sensor 33a stops the rise at the position where the clamp part moving mechanism 31 is detected, and at the same time, the stopper cam 34 is rotated to be engaged with the clamp part moving means 31. As a result, the clamp unit moving means 31 is fixed at a position facing the temporary stacking unit 6a, and in this state, the clamp movement mechanism 31 opens the clamp claws 35a and 35b of the bill clamp unit 30 in the vertical direction to clamp 100 bills. The banknote clamp part 30 is further pushed out in the direction of the temporary stacking part 6a by the clamp moving mechanism 31.

  The clamp claws 35a and 35b of the pushed bill clamp part 30 are inserted into an opening provided on the short positioning mechanism 23 side of the temporary stacking part 6a and are sandwiched between the stacking board 21 and the pressing board 24. Hold the banknotes from above and below. Next, when the stacking plate 21 and the holding plate 24 are opened to release the holding of the banknotes, the 100 banknotes are passed to the banknote clamping unit 30. Therefore, the clamping claws 35a and 35b The banknote clamp part 30 holding the banknote is pulled back by the clamp part moving means 31.

  At this time, the bill held by the clamp claws 35a and 35b hits the short positioning mechanism 23 of the temporary stacking portion 6a. However, when the bill clamping portion 30 is pulled back as it is, the short positioning mechanism 23 is biased by the pressing force of the bill. The banknotes are smoothly extracted from the temporary stacking portion 6a. When the banknote clamp part 30 is pulled back to the original position, it is locked to the clamp part moving means 31 and the stopper cam 34 is rotated to release the lock, and the clamp moving means together with the banknote clamp part 30 holding the banknote. 31 moves to the banknote binding mechanism 10 positioned at the lowermost end of the movement path by the vertical movement means 32, and the banknotes held by the clamp claws 35 a and 35 b of the banknote clamp unit 30 are delivered to the banknote binding mechanism 10.

  FIG. 8 is a side view of the banknote binding mechanism 10. The banknote bundling mechanism 10 includes a conveying unit 40 including rollers and a belt, a tape 41 for bundling with paper tape, a printing unit 42, a tape supply unit 43 for supplying the tape 41, and a tape 41 having a predetermined length. A cutter 44 for cutting the paper and a bundling means (not shown) are provided, and the bills are bundled as follows.

  First, the conveyance path 10 collectively receives 100 banknotes from the banknote clamp part 30 of the transfer mechanism 9 and conveys them to the binding position. The tape supply means 43 supplies the tape 41 to the bundling means, and at this time, the printing means 42 prints the denominations of banknotes bound to the tape 41 via the ink ribbon. The printed tape 41 is cut into a predetermined length by a cutter 44, and the cut tape is wrapped around 100 bills conveyed to the binding position by the binding means to form a banknote bundle. The banknote bundle thus created is further conveyed by the conveying means 40 and sent to the discharge port 11.

  FIG. 9 is a block diagram of a control system related to bill counting, state characteristic detection, and control of the temporary stacking unit. In FIG. 9, reference numeral 50 denotes a control unit that controls the operation processing of the entire banknote sorting apparatus, 51a to 51d are counters, and the counters 51a to 51d correspond to the temporary stacking units 6a to 6d on a one-to-one basis. The number of banknotes accumulated in the unit 6a is counted by the counter 51a. Similarly, the number of banknotes accumulated in the temporary accumulation unit 6b is counter 51b, and the number of banknotes accumulated in the temporary accumulation unit 6c is counter 51c. The number of banknotes accumulated in the part 6d is counted by the counter 51d.

  A storage unit 52 stores the denominations of banknotes accumulated in the temporary accumulation units 6a to 6d, the number of banknotes counted for each denomination, and the like. The storage unit 52 stores a space control amount table, a space control correction amount table, a discrimination result availability table, and the like, which will be described later, in the temporary accumulation units 6a to 6d.

  Further, the discrimination unit 2, the entrance sensor 53, and the motor drive circuit 54 are connected to the control unit 50, and the control unit 50 controls them. The discriminator 2 discriminates the authenticity, denomination, correctness, front and back, etc., and counts of the banknotes as described above, and detects the conveyance abnormality. The thickness of the bill is detected, and these detection results are sent to the control unit 50. The inlet sensor 53 is disposed at the banknote entrance of the temporary stacking units 6a to 6d, and detects entry of banknotes into the temporary stacking units 6a to 6d. The motor drive circuit 54 drives a motor 55 for moving the stacking plate 21 of the temporary stacking units 6a to 6d up and down.

  Next, the operation of the first embodiment will be described with reference to the flowchart shown in FIG. FIG. 10 is a flowchart showing an operation of controlling the space above the temporary stacking unit to a certain size. Here, the inserted banknotes are counted, and the stacking operation of the banknotes in the temporary stacking units 6a to 6d thereafter. The operation | movement which always controls the space of the accumulation | stacking banknote upper part accompanying to a fixed area is demonstrated.

  First, when the apparatus is turned on, an initial screen is displayed on the operation display unit 13 shown in FIG. 3, and the operator selects the display mode of the initial screen by pressing it with a finger. Here, the operator selects a designated denomination bundling mode of three denominations of 10,000 yen, 5,000 yen, and 1,000 yen, and inserts bills into the insertion slot 1 (step 1). In this case, a plurality of denominations of 10,000 yen, 5,000 yen, and 1,000 yen are mixed in the inserted banknote. Next, the operator presses the counting start button 7a shown in FIG. 4 (step 2). When detecting the selection of the mode and the pressing of the counting start button 7a, the control unit 50 separates the inserted banknotes one by one and feeds them to the transport path 3a (step 3).

  The fed banknotes are transported through the transport path 3 a and sent to the discrimination unit 2. The discrimination unit 2 detects the state characteristics of the bill with the amount of transmitted light, the amount of reflected light, and the thickness of the bill in addition to discriminating between authenticity, denomination, front and back, and damage of the bill by a sensor (not shown). Further, counting of banknotes and detection of presence / absence of conveyance abnormality are performed (step 4). These discrimination result information, state characteristic information, count information, and conveyance abnormality information are sent from the discrimination unit 2 to the control unit 50 (step 5).

  The control part 50 registers the information received from the discrimination part 2 in the memory | storage part 52 for every banknote, As a result of discrimination, it was determined that it is either 10,000 yen, 5,000 yen, or 1,000 yen with a genuine note. In the case of a banknote, it conveys to the temporary stacking parts 6a-6d of the stacking mechanism 6 while tracking the banknote which came out from the discrimination part 2 with the some sensor which is arrange | positioned along the conveyance paths 3c and 3d shown in FIG. (Step 6).

  When the control unit 50 detects the arrival of a banknote by the entrance sensor 53 provided in the temporary stacking units 6a to 6d (step 7), the stacking unit temporarily stores each banknote passing number shown in FIG. With reference to the subspace control amount table 61, a temporary accumulation unit space control amount (first control amount) for each banknote passing number is obtained (step 8). The temporary stacking unit space control amount for each banknote passing number shown in FIG. 11 is a descending amount that should lower the stacking plate 21 of the temporary stacking units 6a to 6d according to the number of banknotes stacked in the temporary stacking units 6a to 6d. And is set for each number of sheets to be stacked.

  Next, the control part 50 reads the state characteristic information of a banknote from the memory | storage part 52, refers to the temporary accumulation part space control amount table 62 according to a money type state characteristic shown in FIG. The space control amount (second control amount) of the temporary accumulating unit corresponding to the state characteristics is obtained (step 9). As shown in FIG. 12, there are bill light transmission amount, light reflection amount and bill thickness as banknote state characteristics, and three levels (level 1, level 2, level 3) for each state characteristic. Is set for each level, and the amount of temporary accumulation unit space control, that is, the amount by which the accumulation plate 21 of the temporary accumulation units 6a to 6d should be lowered is set for each type. The stacking plate 21 is controlled by a control amount set in the temporary stacking unit space control amount table 62 according to the denomination state characteristics, thereby performing the lowering control of the stacking plate 21 according to the state characteristics of the respective bills. be able to.

  Next, the control unit 50 reads the information on the number of banknotes from the storage unit 52, sets the current stacking number + 1 in the temporary stacking unit as the stacking number, and temporarily stacks the stacking number for each banknote stacking number shown in FIG. With reference to the subspace control correction amount table 63, the space control correction amounts of the temporary stacking units 6a to 6d are obtained (step 10). This is based on the value of the total control amount (third control amount) obtained in step 8 and step 9 each time the number of banknotes stacked in the temporary stacking units 6a to 6d reaches a predetermined number. This is to correct the space control amount (third control amount) of the temporary stacking unit. In the example shown in FIG. 13, no correction is made until the number of stacked sheets reaches 60 sheets, and every 70 sheets or more are corrected. Is made.

  Next, the control unit 50 refers to the denomination status characteristic result availability table 64 shown in FIG. 14 stored in the storage unit 52, and determines whether or not to use the above-described banknote state characteristic information for the temporary stacking unit space control. Is determined by denomination (step 11). This is because the state characteristic information of the banknote may not be used for the temporary stacking unit space control, and in this case, the state characteristic information is not used. In the example shown in FIG. 14, the light transmission amount is used for all denominations, the light reflection amount is not used for all denominations, and the bill thickness is used for 5,000 yen and 1,000 yen. Not used with denominations. When any state characteristic information is not used, all the temporary accumulation unit space control amounts shown in FIG. 12 in the state characteristic are “0”.

  Next, the control unit 50 determines the temporary accumulation unit space control amount for each passing number obtained in step 8, the temporary accumulation unit space control amount for each state characteristic obtained in step 9 and step 11, and the temporary accumulation unit obtained in step 10. The accumulated portion space control correction amount is summed to obtain a temporary accumulated portion space control amount that is actually used for controlling the accumulation plate 21 (step 12).

  When the temporary accumulation unit space control amount to be actually used is obtained, the control unit 50 starts the motor drive circuit after a predetermined time has elapsed from the time of detection of the incoming bill by the entrance sensor 53 of the temporary accumulation units 6a to 6d (step 13). The motor 55 is driven via 54, and the stacking plates 21 of the temporary stacking units 6a to 6d are lowered by the temporary stacking unit space control amount obtained in step 12 (step 14). Thereby, the space area of the upper part of the stacking plate 21 of the temporary stacking units 6a to 6d (the upper part of the banknote when banknotes are already stacked) is controlled to be constant. The reason why the stacking plate 21 is lowered after a predetermined time has elapsed is to optimize the timing of lowering the stacking plate 21 with respect to the state of the banknotes to be stacked. That is, the stacking plate 21 is lowered immediately after the bills are placed on the stacking plate 21.

  Next, the control unit 50 registers the temporary accumulation unit space control amount actually operated in the storage unit 52 (step 15). Thereafter, the above steps 4 to 15 are repeated until 100 bills are stacked on the stacking plate 21 of the temporary stacking units 6a to 6d (step 16).

  The calculation of the temporary stacking unit space control amount actually used in the control in step 12 is calculated for each bill in the above description, but it is calculated for every two bills or every five bills. Also good. When calculating for every several sheets, it can obtain | require for the temporary accumulation part space control amount for every banknote by total number.

  The temporary stacking unit space control correction amount table 63 for each banknote stacking number shown in FIG. 13 is used only for the temporary stacking unit space control amount of the temporary stacking unit space control amount table 61 for each banknote passing number shown in FIG. In the case of control, that is, when the control amount is “0” when referring to the temporary accumulation unit space control amount table 62 by banknote state characteristic result shown in FIG. 12, the control amount is “0”. Is set to Thereby, by setting not to use all the state characteristic results in the denomination state characteristic result availability table 64 shown in FIG. 14, the temporary accumulation unit space control amount table 61 for each banknote currency number shown in FIG. It is possible to control the stacking plate 21 with only the temporary stacking unit space control amount.

  In addition, since the denomination status characteristic result availability table 64 shown in FIG. 14 can set the availability of different state characteristic information for each denomination, the state characteristic that most influences the stacking height after banknote stacking for each denomination. Thus, it is possible to improve the accuracy of the integrated height on the integrated plate 21.

  As described above, according to the first embodiment, the state characteristics of banknotes that affect the counting of banknotes stacked in the temporary stacking units 6a to 6d and the stacking height after banknote stacking, that is, light transmittance. Since the spatial region of the temporary stacking units 6a to 6d is controlled according to the amount of light reflection and the thickness of the banknote, the spatial region of the temporary stacking units 6a to 6d even when the banknote is folded or curled. The size of can always be kept constant. Therefore, it is possible to stably accumulate banknotes in the temporary accumulation units 6a to 6d.

  Next, a second embodiment will be described. In the second embodiment, the time from the detection of the passage of the banknote to the detection of the next banknote is measured by the entrance sensor 53 at the entrance of the temporary stacking units 6a to 6d, and based on the measurement time. The size of the space area of the temporary accumulation units 6a to 6d is controlled. To that end, in the second embodiment, the storage unit 52 shown in FIG. 9 stores a temporary stacking unit space control correction amount table 65 based on the inter-banknote time shown in FIG. The control unit 50 is provided with a timer for time monitoring. Other configurations are the same as those of the first embodiment.

  The temporary stacking unit space control correction amount table 65 based on the inter-banknote time is being stacked when the next banknote enters the temporary stacking units 6a to 6d while the banknotes are being stacked on the temporary stacking units 6a to 6d. In order to prevent a subsequent banknote from colliding with a banknote, when the space | interval of a banknote and a subsequent banknote becomes short, the space of temporary stacking part 6a-6d is made wide, and temporary stacking part 6a-6d is made. This is a control correction amount for enabling the banknotes to be stably accumulated.

  Next, the operation of the second embodiment will be described with reference to the flowchart shown in FIG. In FIG. 16, Step 21 to Step 30 are the same as Step 1 to Step 10 of the first embodiment. When the entrance of the banknote is detected by the entrance sensor 53 of the temporary stacking units 6a to 6d in step 27, if the detected banknote is the first banknote, the control unit 50 activates the inter-banknote monitoring timer. When the detected banknote is the second and subsequent banknotes, the control unit 50 stops the interbanknote monitoring timer and measures the interbanknote time with the previous banknote. Based on the measured time, the control unit 50 refers to the temporary stacking unit space control correction amount table 65 based on the inter-banknote time shown in FIG. 15 and obtains the temporary stacking unit space control correction amount (step 31).

  After that, the control unit 50 refers to the denomination state characteristic result availability table 64 shown in FIG. 14 stored in the storage unit 52, and determines whether or not to use the state characteristic information of the banknote for the temporary stacking unit space control. After determining the money type (step 32), the temporary accumulation unit space control correction amount obtained in step 30 and step 31 is added to the temporary accumulation unit space control amount obtained in step 28 and step 29, and the actual operation is performed. Temporary accumulation unit space control amount to be used is obtained (step 33).

  Thereafter, the control unit 50, after the elapse of a predetermined time from the time of detection of the incoming bill by the entrance sensor 53 of the temporary stacking units 6a to 6d (step 34), the stacking plates 21 of the temporary stacking units 6a to 6d by a drive unit (not shown). Is lowered by the temporary accumulation unit space control amount obtained in step 33 (step 35). Thereby, the space area of the upper part of the stacking plate 21 of the temporary stacking units 6a to 6d is controlled to be constant.

  Next, the control unit 50 registers the temporary accumulation unit space control amount actually operated in the storage unit 52 (step 36). Thereafter, when passage of the next banknote is detected by the inlet sensor 53 of the temporary stacking units 6a to 6d (step 37), the inter-banknote monitoring timer is started and the inter-banknote time is monitored (step 38). Steps 24 to 38 are repeated until 100 banknotes are stacked on the stacking plates 21 of the temporary stacking units 6a to 6d (step 39).

  As described above, according to the second embodiment, not only the state characteristics of banknotes but also the interval between banknotes is considered, and when the interval between a banknote and a subsequent banknote is shortened, temporary stacking units 6a to 6a. Since the control of the stacking plate 21 is corrected so that the space of 6d becomes wide, it is possible to prevent the subsequent banknote from colliding with the banknote being stacked, and the banknotes to the temporary stacking units 6a to 6d can be prevented. Accumulation can be performed stably.

  In each of the embodiments described above, an example in which banknotes are stacked as a medium has been described. However, the present invention is applicable not only to banknotes but also to apparatuses that stack other media such as slips and forms. Moreover, in each said embodiment, although the light transmittance, the amount of light reflection, and the thickness of a banknote are detected as a state characteristic of a banknote, it is not necessarily restricted to these as a state characteristic. Furthermore, it is not always necessary for the discrimination unit 2 to detect the state characteristic of the banknote, and a sensor disposed in the transport path may be used, or a dedicated sensor may be newly disposed.

It is a schematic side view which shows 1st Embodiment. It is an enlarged view of the upper part of FIG. It is a perspective view which shows the external appearance of 1st Embodiment. FIG. 4 is a partially enlarged view of FIG. 3. It is a perspective view which shows a stacking mechanism. It is a perspective view which shows a temporary accumulation part. It is a perspective view which shows a transfer mechanism. It is a side view which shows a banknote binding mechanism. It is a block diagram which shows the control system of 1st Embodiment. It is a flowchart which shows operation | movement of 1st Embodiment. It is explanatory drawing which shows the temporary accumulation part space control amount table for every banknote passage number. It is explanatory drawing which shows the temporary accumulation part space control amount table according to a money type state characteristic. It is explanatory drawing which shows the temporary stacking part space control correction amount table for every banknote collection | stacking number. It is explanatory drawing which shows a money classification state characteristic availability table. It is explanatory drawing which shows the temporary stacking part space control correction amount table by the time between banknotes. It is a flowchart which shows operation | movement of 2nd Embodiment.

Explanation of symbols

2 Discrimination Unit 6 Stacking Mechanisms 6a to 6d Temporary Stacking Unit 21 Stacking Plate 50 Control Unit 52 Storage Unit

Claims (13)

In the medium stacking apparatus that transports the loaded medium and sequentially stacks it on the stacking plate, and moves the stacking plate when the stacked medium increases.
Counting means for counting the conveyed medium;
State characteristic detecting means for detecting the state characteristic for each medium;
A medium stacking apparatus comprising: a control unit that performs movement control of the stacking plate according to a counting result of the counting unit and a detection result of the state detecting unit.   2. The medium stacking apparatus according to claim 1, wherein the state characteristic detecting unit detects light transmittance of the medium.   2. The medium stacking apparatus according to claim 1, wherein the state characteristic detecting unit detects a reflection amount of light of the medium.   2. The medium stacking apparatus according to claim 1, wherein the state characteristic detecting means detects the thickness of the medium.   The control means calculates a first control amount for controlling the stacking plate according to the number of sheets counted by the counting means, and the stacking according to the state characteristic of the medium detected by the state characteristic detecting means. 2. The medium stacking apparatus according to claim 1, wherein a second control amount for controlling the plate is calculated, and a third control amount is calculated by adding the first control amount and the second control amount.   6. The medium stacking apparatus according to claim 5, wherein the second control amount is constituted by a total of each control amount calculated according to a plurality of state characteristics.   7. The medium stacking apparatus according to claim 5, wherein a control amount corresponding to each state characteristic varies depending on a medium type.   7. The medium stacking apparatus according to claim 5, wherein the third control amount is corrected every time the counting result of the medium by the counting unit reaches a predetermined number.   The medium stacking apparatus according to claim 8, wherein the correction amount of the third control amount performed by the control unit is different depending on the magnitude of the third control amount.   7. The medium stacking apparatus according to claim 5, wherein the third control amount is corrected according to a time between the conveyed media.   9. The medium stacking apparatus according to claim 8, wherein the second control amount can be set to be usable depending on a type of the medium.   12. The medium stacking apparatus according to claim 11, wherein the second control amount can be set to be usable or not depending on a medium type for each of the plurality of state characteristics.   13. The medium stacking apparatus according to claim 11, wherein when the second control amount is determined not to be used, the correction amount for the third control amount is zero.

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