JPS6235713B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper sorting device that sorts paper sheets, such as banknotes, into denominations or sorts and counts and accumulates them.

[Conventional technology]

In general, this type of apparatus includes a determining means 26 and 2 for detecting at least the quality of paper sheets sequentially brought in and transporting them, as shown in Japanese Patent Application Laid-open No. 74492/1983.
8, and a first section for transporting the paper sheets that have been determined to be good by the determining means and have been discharged to the first stacking section 35.
and a second conveyance path 23c for conveying the paper sheets that have been rejected and discharged by the determination means to the second stacking section 6. The paper sheets discharged from the determining means are separated into the first or second conveyance path near the exit of the determining means. However, the item that was judged to be good by the judgment means and sent to the first conveyance path became skewed or the conveyance interval became abnormal during the conveyance path, resulting in a failure state. case is not taken into account.
This type of skew mostly occurs especially when the direction of the sheet is reversed or at a so-called conveyance direction change portion such as a corner portion of a conveyance path.

[Problem that the invention seeks to solve]

The above conventional example does not take into account abnormal conditions caused by skew in the conveyance path of a sheet that has been determined to be good or an abnormal conveyance interval between sheets; It becomes impossible to feed it into the conveyance path. Therefore, in the conventional system, such abnormal paper sheets become jammed especially when they are carried into the first stacking section, making it difficult to collect subsequent paper sheets in the corresponding stacking section, and the device had to be shut down, which inevitably led to a decline in operating rates.

The present invention has been made in view of the above points, and its object is to be able to transport paper sheets that have failed in the first transport path to the second stacking section, and to An object of the present invention is to obtain a sheet sorting device that can improve the operating rate of the device.

[Means for solving problems]

In order to achieve the above object, the present invention provides a determining means for determining at least the quality of paper sheets fed one by one, a transporting means for transporting the paper leaf determined by this means, and a terminal end of the transporting means. established in
a rejected paper sheet discharge unit that discharges paper sheets determined to be rejected;
In a sheet sorting device including a good sheet ejecting section disposed in the middle of a conveyance means and discharging sheets determined to be good, the determining means includes a first determining means located before the good sheet ejecting section. and a second determining means located before the first determining means, and the conveying means changes the conveying direction of the sheet so that it is located between the first and second determining means. It has a changing part.

[Effect]

Even if a sheet is determined to be good by the first determining means, if a skew or sheet spacing abnormality occurs during the conveyance path, the second determining means determines the abnormality, and based on this determination, the second determining means determines the abnormality. Then, the sheet passes through the good sheet discharge section, passes through the conveyance section, and is discharged to the reject sheet discharge section.

〔Example〕

An embodiment of the present invention shown in the drawings will be described below. FIG. 1 is a schematic diagram of a banknote sorting device as a paper sheet sorting device. 1 is the aircraft body, and 2 is a banknote storage box. Banknotes 3 are thrown into the banknote storage box 2 in a mixed state, regardless of front or back, top or bottom, or denomination. Reference numeral 4 denotes a separation roller, which sequentially feeds out the banknotes 3 placed in the banknote storage box 2 one by one starting from the frontmost part. Reference numeral 5a denotes a conveyance path composed of belts, rollers, etc., which clamps and conveys the bank note 3 fed out as described above to a discrimination section 6 (first judgment means) as a judgment means. While the bank note 3 is passing, the discrimination unit 6 makes judgments regarding the type, front and back, authenticity, skew, conveyance interval, etc. of the bank note 3, and distinguishes genuine notes as good notes and rejected notes as rejected notes. Classify and judge. Bank note 3 that has passed through the identification section 6
is further held and conveyed by the conveyance path 5b, and reaches a branch point 7 (transport direction changing section). When the banknote 3 determined by the discrimination section 6 to be a genuine note and a reverse note is conveyed along the conveyance path 5b, the banknote 3 passes through the branch point 7.
Just before reaching the gate, the solenoid 8 is activated and the gate 9 is opened.
operates as shown by the chain line in FIG. Thereby, the banknote 3 is guided to the reversing conveyance path 5c (conveyance direction changing section).

Then, due to the action of the torsion belt 10 constituting the conveyance path 5c, the banknote 3 is rotated 180 degrees in a direction perpendicular to the conveyance direction while being held and conveyed, and becomes a front note and reaches the confluence point 11 (conveyance direction changing section). reach Next, the bank note 3 determined by the appraisal section 6 to be other than the above is conveyed in a pinched manner by the conveyance path 5b, and subsequently conveyed in a pinched manner by the conveyance 5d, and reaches the confluence point 11. Here, since the conveyance path 5c and the conveyance path 5d have approximately the same length and are securely sandwiched between belts, both the conveyance paths 5c and 5d
By simply driving the banknotes at a constant speed, even if the front and back notes are conveyed alternately, the feeding interval of the banknotes at the branching point 7 and the confluence point 11 will be the same, and the banknotes 3 on the subsequent conveyance path will be equal. Processing becomes easier.

The banknotes 3 that have merged at the merging point 11 are further transferred to the conveyance path 5
It is held and conveyed by e. The terminal end of the conveyance path 5e is provided with a rejected ticket outlet 13 for discharging rejected bills, and a rejected ticket storage box 14 for storing the rejected bills discharged from the outlet 13. A discharge section 12 is provided. A good bill (good paper sheet) discharge section 15 for discharging good bills is provided before the terminal end of the conveyance path 5e. This good note discharging section 15 has a number of good note discharging mechanisms according to the type of banknotes 3 to be put into the banknote storage box 2, that is, the denomination, and good note storage sections 16a to 16d corresponding thereto. It is provided. In this figure, the good ticket ejection mechanism is gates 17a to 17d.
and solenoids 18a, 18b, 1 that operate this
8c and 18d are shown. In the figure, the four sets of good bill ejecting mechanisms and good bill storage sections 16a to 16d are used because the denominations classified by this device are 10,000 yen notes, 5,000 yen notes, 1,000 yen notes, and 500 yen notes. This is because there are four types. The types of banknotes to be accommodated are set in advance in each of the good note storage sections 16a to 16d, and the denominations are discriminated by the discrimination section 6, and the banknotes 3 to be accommodated in the good note storage sections 16a to 16d are
When the ticket reaches just before the gates 17a to 17d corresponding to the good ticket storage sections 16a to 16d, the solenoids 18a to 1 actuate the gates 17a to 17d.
8d is activated and the bank note 3 is sent to the gates 17a-1.
7d, the tickets are discharged from the conveyance path 5e and stored in the corresponding good ticket storage boxes (sections) 16a to 16d.

When the bank note 3 determined to be rejected by the discrimination section 6 is pinched and conveyed through the conveyance path 5e, none of the gates 17a to 17d are activated. Then, the bank note 3 is automatically conveyed to the end of the conveyance path 5e, discharged from the rejected note discharge port 13, and stored in the rejected note storage box 14.

The above are banknotes 3 that were determined to be good by the discrimination unit 6.
The case where no abnormality occurs in the skew or the feed interval, etc. in the subsequent conveyance path has been explained. However, as is clear from the above description, the banknote sorting device described above has functions such as reversing the conveyance path 5c, changing the conveyance direction at the branch point 7, and the confluence point 11 after the discrimination section 6. There is a complicated conveyance path. Further, depending on the type of banknote sorting device, some have a changing function such as reversing the conveying direction.
Therefore, good bills may be skewed on the conveyance path after the discrimination section 6, or an abnormality may occur in the conveyance interval. Such banknotes 3 that are no longer valid are stored in the good note storage box, in particular.
Its intake portion, for example gates 17a, 17
Jams tend to occur near parts b, 17c, and 17d. Reference numeral 19 detects such a bank note 3, that is, a bank note 3 that is determined to be a good note by the discrimination unit 6, skews during conveyance, or has an abnormality in the conveyance interval, and should be determined as a rejected note as a result. This is a determining section (second determining means). FIG. 3 shows an example of this determination section 19, the main parts of which are optical sensors S,
Consists of S. This is nothing special,
It has been commonly used in this type of field. That is, after the banknotes 3a, 3b held and conveyed in the direction of the arrow a by the belts 20a, 20b, 20c forming the conveyance path 5e shield one of the optical sensors S, S, the other optical sensor S, S
If the time T until the light is blocked is longer than a predetermined time, this is determined to be excessive skew, and after the banknote 3a begins to block light from the optical sensors S, the next banknote 3b is detected by the optical sensor S. , S is shorter than a predetermined time, this is regarded as a conveyance abnormality.

Although the placement position of the determining unit 19 is not limited to the position shown in the figure, it is desirable that it be located immediately before the good ticket discharging unit 15 as much as possible. This is the judgment section 19
If the discharging section 15 is separated from the ticket discharging section 15, skew or the like is likely to occur after the ticket is determined to be a good ticket by the determining section 19 and before reaching the discharging section 15. In this case, the gates 17a, 17
This is based on the fact that rejected bills are ejected at points b, 17c, and 17d, which are likely to be jammed.

The priority order for the judgment results of the appraisal section 6 and the judgment section 19 is as follows. That is, for rejected tickets, priority is given to the determination result of the appraisal unit 6, and for tickets determined to be good by the appraisal unit 6, priority is given to the determination result of the determination unit 19. Due to this relationship, the appraisal department 6,
When a bank note 3 determined as a rejected note by the determination section 19 is conveyed, all the gates 17a, 17b, 17c, and 17d of the good note discharge section 15 are prevented from performing a discharge operation. By doing so, even if the bank note is determined to be good by the appraisal section 6, if an abnormality occurs during subsequent transportation, the bank note 3
will be stored in the rejected ticket storage section 12.

Note that the judgments made by the appraisal unit 6 and the judgment unit 19, and the activation, inactivation, and timing of each gate based on the judgment results are performed by the control unit, which can be easily implemented within the scope of conventional technology. Therefore, the explanation is omitted. Incidentally, such a control section is generally configured mainly by a microcomputer or the like.

As described above, by providing the rejected bill discharging section 12 at the end of the conveyance path 5e and providing the good bill discharging section 15 in front of it, the bills become rejected on the conveyance path before reaching the good bill discharging section 15. The banknotes 3 can be discharged to the rejected note discharge section 12. Therefore, the jamming phenomenon of banknotes 3 can be significantly reduced, and as a result, the operating rate of the apparatus can be improved.

Although the embodiments have been described using a bank note sorting device as an example, the present invention is not limited thereto, and can be applied to other general paper leaf sorting devices. In addition, in the embodiment, the case where the banknotes 3 are classified by denomination has been explained, but it is also possible to determine whether the banknotes 3 are good or rejected and classify the banknotes 3 into these two types. The present invention can of course be applied. Further, in the embodiment, the determination unit 19 is located at the position shown in the figure, but the arrangement position and the number of determination units are arbitrary and can be determined depending on the type of device to which the present invention is applied. be. Furthermore, in the embodiment, the determination unit 19 was described as determining the skew of the banknote 3 as a paper sheet and the conveyance interval, but the determination unit 19 may be configured to have the same determination function as the discrimination unit 6. If the judgment results obtained by the appraising section 6 and the judgment section 19 are compared, and if the judgment results match, only the matching banknotes 3 are discharged to a predetermined discharge section, an extremely accurate sorting device can be obtained. can be obtained. Furthermore, in the embodiment, all banknotes discriminated by the discrimination section 6 are conveyed to the subsequent conveyance path 5b, but as in the past, a rejected paper discharge section is provided near the outlet of the discrimination section 6. established,
The paper sheet determined to be rejected by the discrimination section 6 may not be sent to the subsequent conveyance path, but may be discharged from the rejected sheet discharge section. In this way, the generation of jam paper sheets can be further reduced.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, a sheet that becomes rejected during transportation can be discharged as a rejected sheet, and as a result, a sheet sorting device with a high operating rate can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a banknote sorting device showing an embodiment of the present invention, FIG. 2 is an enlarged view of a branch point 7, and FIG. 3 is a plan view showing an example of the determination section 19. 3: paper leaf, 6: first determining means, 19: second determining means, 5a, 5b, 5c, 5d, 5e: conveying means, 5c: reversing conveying means, 12: rejected paper sheet discharge section,
13: Rejected paper sheet discharge port, 14: Rejected paper sheet storage section, 1
5: Good paper sheet discharge section, 16a, 16b, 16c, 1
6d: Good paper leaf storage section, 17a, 17b, 17c,
17d, 18a, 18b, 18c, 18d: Gates and solenoids that constitute the good paper sheet discharge mechanism.

Claims (1)

[Scope of Claims] 1. A determining means for determining at least the quality of each sheet fed one by one, a conveying means for conveying the sheet judged by this means, and a means provided near the end of the conveying means. , a paper sheet sorting device comprising a rejected paper sheet discharge section for discharging paper sheets determined to be rejected, and a good paper sheet discharge section provided in the middle of the conveyance means for discharging paper sheets determined to be good; The determining means includes a first determining means located in front of the good sheet discharge section and a second determining means located in front of the first determining means, and the conveying means A paper sheet sorting device characterized by having a conveyance direction changing section that changes the conveyance direction of paper sheets so as to be located between the determination means. 2. The paper sheet sorting device according to claim 1, wherein the conveyance direction changing section includes a reversing and conveying means capable of reversing the paper sheet based on the front/back determination result of the second determining means. 3. According to claim 1, the conveyance direction changing section comprises a second rejected sheet discharge section that discharges rejected sheets based on the negative determination result of the second determining means. Paper leaf sorting device.