JP2000061407A - Paper sheet handling apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus which detects transparent bodies such as plastic envelopes, transports these bodies to a desired sorting port, sorts and collects the transparent bodies and has a good sorting rate. SOLUTION: This apparatus is constituted by installing a line sensor 100 which is lined up with a plurality of optical sensors perpendicularly to a transportation direction and is capable of detecting the contours of postal items and the presence of transparent portions therein onto a transportation path as near sepn. sections as possible. A means for minimizing the transparent portion detecting ranges 300, 301 of the sensor 100 is used by setting these ranges to the same as the detecting ranges of the of the optical sensors for detecting the passage of the postal items installed at the plural points of the transporting path.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for handling paper sheets such as a mail sorting device, which can detect a transparent body such as a vinyl envelope and convey it to a target sorting port without causing a jam. The present invention relates to a paper sheet sorting device characterized by being able to do so.

[0002]

2. Description of the Related Art Further, in order to monitor whether or not a mail item is conveyed in synchronization with a prescribed speed of a conveyance path, an optical sensor for detecting passage of a mail item, a length or an inclination of the mail item, A large number of optical sensors are mounted to measure the distance to the mail. These optical sensors detect the presence of a mail piece when it intercepts the optical axis of the sensor, and perform the respective operations such as measuring the length and inclination of the mail piece and the distance between the mail piece before and after.

For example, when the value of the distance between the front and rear mail items measured by the above optical sensor becomes a certain value or less, the sorting gate for accumulating at the sorting port cannot operate, so that the sorting gate at the sorting port cannot operate. In some cases, a jam may occur during the gate operation, or in order to prevent the jam from occurring, the jam may not be collected in the intended dividing port and may be excluded in the exclusion box.

Further, when the inclination of the mail piece measured by the optical sensor exceeds a certain value, the timing at which the mail piece passes through the distribution gate timing sensor and the operation timing of the distribution gate are not synchronized with each other, so that a jam occurs. Will occur. To prevent the occurrence of jams,
After all, there is also a case where the control is performed so that the waste is not collected in the target sorting port but is excluded in the exclusion box.

Further, the length of the double-fed mail is changed due to the displacement of the two mails in the carrying direction due to the carrying force applied from the carrying belt during the carrying. Immediately after separating the mail items, the lengths of the mail items measured by each sensor are periodically compared with each other,
Detects double feed. If the double-fed mail is sorted as it is, it will be collected in a sorting port that should not be sorted and it will be misclassified. Control to exclude.

In the above control system, the following problems occur when a partially transparent vinyl envelope is conveyed. That is, when the transparent portion of the vinyl envelope passes on the optical axis of the sensor, the optical sensor cannot detect the existence of the mail because the optical axis is not shielded, and detects the end of passing the mail. Furthermore, if the non-transparent part of the above-mentioned mail block the optical axis of the optical sensor subsequently, it will be detected as the passage of the succeeding mail, and as a result, even if it is one mail, it is as if two mails were received. May detect postal items. Further, if the optical sensor is an optical sensor that measures the interval between the front and rear mail items, it will be erroneously detected that the interval is less than a certain value, and will be removed in the exclusion box.
Also, if it is an optical sensor that measures the length of mail, the length measurement value at each sensor will be different due to the flicker due to the transparent part, and the double feed detection control as described above will cause false detection as a double feed, It is excluded in the exclusion box. If the amount of postal matter that is rejected in the reject box increases, the staff will sort the items by hand later, resulting in poor efficiency.

To solve this problem, Japanese Patent Laid-Open No. 8-20
There is a transparent body detection sensor as described in 1518,
The sensor is an ultrasonic oscillator for a transparent body, a detector for detecting ultrasonic waves reflected from the transparent body, facing them,
Since it is composed of a detector that detects ultrasonic waves, it is very difficult to implement the device having a large number of sensors as described above. In addition, the ultrasonic oscillator and the detector are generally more expensive than the optical sensor, which is not preferable because the cost of the device is significantly increased.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention minimizes the elimination of a transparent vinyl envelope and ensures that the sheet can be conveyed to a desired sorting port. Provide a classification device at low cost.

[0009]

According to the present invention, a plurality of pairs of optical sensors are arranged in a direction perpendicular to the conveying direction to detect the contour of a mail piece, and further to detect a region which is not shielded from light inside the contour. And a pair of optical sensors on the downstream side of the detector for detecting the timing of blocking the optical axis when a mail piece passes through, and these pair of sensors are arranged at a plurality of positions on the conveyance path. A second detector and a plurality of pairs of optical sensors that detect the timing of blocking the optical axis when a mail item passes downstream of the first detector, and these pairs of sensors are provided. A third detector arranged at a plurality of positions on the transport path, between the second and third detectors,
Alternatively, a fourth detector capable of detecting a transparent body is arranged as close as possible to a separating unit that separates mail pieces one by one, and the following control is performed.

(1) The detection range of the pair of optical sensors of the second detector and the detection range of the pair of optical sensors of the plurality of pairs of optical sensors of the third detector are at the same position. (2) In the first detector, the area where the optical sensor inside the outline of the mail detects the area not shielded from light is
The position is the same as the detection range of the pair of optical sensors of the second detector or the plurality of pairs of optical sensors of the third detector.
(3) The first detector is arranged as close as possible to the separation section. (4) In the first detector, when the optical sensor inside the outline of the mail detects an unshielded region, when the unshielded region is detected, the information is stored in the control unit, Used for transport control.
(5) The lengths of the mail items measured by the third and fourth detectors are compared. (6) The lengths of the mail items measured by the fourth detectors are compared with each other.

From the above, it is possible to correctly judge a vinyl envelope which is a transparent body, and to prevent it from being eliminated due to erroneous detection to a minimum, thereby achieving the original purpose.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings.

FIG. 15 is a front view showing the outline of a sorting and accumulating apparatus for mails according to an embodiment of the present invention. After separating from the bundle 2 of the postal matter placed in the hopper 1 shown in FIG. 13 into the conveying path 3 one by one, the thickness is measured by the thickness measuring device 4. The measured thickness information is sent to the control unit 7, and the control unit 7
Therefore, it is judged whether there is a possibility that a jam will be induced on the conveyance path or the mail itself will be damaged because the thickness of the mail is too thick. It is rejected by the reject box 5 that collects impossible mail items. Information such as an address, an address, and a zip code is read by the reading unit 6 for the postal item determined to be normal. The read information is sent to the recognition unit 19. Next, the double feed detector 60 detects whether or not the mail pieces are overlapped. When it is determined that the postal items are overlapped, the postal items are rejected in the reject box 61 for accumulating the double-delivered letters. For the postal items determined not to overlap, the recognition unit 19
A bar code corresponding to the information is generated. During production, the postal matter passes through the transport path 8. After the bar code corresponding to the read information is generated, the printer 9 prints a bar code on the surface of the mail. Thereafter, the postal matter passes through the transport path 10 and is transported to the multi-pass transport path 11. In the multi-stage path transport path 11, the mail items sequentially sent are sorted into each stage of the sorting section 14 arranged in a matrix.

FIG. 16 is a detailed view of one partitioning port 15 of the matrix-shaped partitioning portion 14. After the mail is sorted into each stage, the sorter placed in the transport path 17
When passing through the timing sensor 16, the sorting gate 12 operates and is sorted into the sorting port 15 only when the target sorting port 15 is to be sorted. For a postal matter whose gap length fluctuates during transportation and the switching time of the sorting gate 12 cannot be secured, the sorting gate 12 does not operate and passes through the sorting port 15 and the sorting portion. 1
It is excluded in the exclusion box 18 installed at the end of each stage of No. 4.

Details of conveyance control of transparent bodies such as vinyl envelopes according to the first to third aspects of the present invention will be described below with reference to FIGS.
Described in. FIG. 1 is a plan view showing an outline of a conveying path 3 composed of a pair of conveying belts 21, and FIG. 2 is a timing chart when detecting a mail item of each sensor described below.

The sensor 100 fixed to the base plate 50 is the first detector of the present invention, in which a plurality of optical sensors are arranged perpendicularly to the conveying direction, and the outline of the mail and the inside thereof are transparent. It is a line sensor that can detect the presence of a portion. Line sensor 100
Is a conveyance path as close as possible to the hopper 1, for example, FIG.
Install at point A shown in. The sensor 101 fixed to the base plate 50 is the second detector of the present invention,
It is an optical sensor that detects passage of a postal matter by being shielded when the postal matter passes on the optical axis. The sensors 101 are installed at a plurality of locations on the conveyance path, and some of the plurality of sensors 101 measure the length of a mail item and the distance between the mail item and the front and back items. Further, when it is installed on the upstream side of the distribution gate as shown in FIG. 16, it also serves as a trigger for starting the operation of the distribution gate. The sensors 102 and 103 fixed to the base plate 50 are the third detectors of the present invention, and detect the passage of the mail by being shielded when the mail passes along the optical axis. The sensor 10
2 and 103 are also installed at a plurality of locations on the transport path. Ranges 300 and 301 are detection ranges of the sensors 101, 102 and 103. This range is for sensor 101 and sensor 10.
The minimum width is set to be the same as the detection range of the optical axes 2 and 103.

The postal matter 200a is an example of a partially transparent vinyl envelope. Range 21 within mail 200a
Reference numeral 5 denotes an opaque portion capable of detecting the presence of mail because each optical axis is shielded when passing through the line sensor 100. Further, since the range 210 is transparent, the optical axis of the line sensor is indicated. Is a transparent part that is not shielded from light and cannot detect the presence of mail.

The postal matter 200b is a position when the postal matter 200a passes through the sensor 101, and is the postal matter 20b.
0c is the position when the postal matter 200b passes through the sensors 102 and 103.

The output when the mail reaches each sensor will be described below with reference to FIG.

When the postal matter 200a passes through the line sensor 100, each optical axis of the line sensor is shielded, so that the output is turned on. When the transparent portion 210 reaches the line sensor 100, only the optical axes a, a ′ and b ′ are transparent portion 21.
Since 0 and 211 cannot be detected, they are turned off.
After passing the time t1 (= L1 / v, v is the transport speed, and L1 is the length of the transparent portion 210 in the transport direction), the opaque portion 21 is again passed.
Since 5 has arrived, the optical axis a is turned on. Line sensor 1
On the optical axes other than 00 a and a'b 'of 00, the transparent part 21 is kept on during the time t2 (= L2 / v) from the front end to the rear end of the mail piece 200a.
The presence of 0, 211 can be detected.

Next, when the postal matter 200b passes through the sensor 101, the transparent portions 210 and 211 become the sensor 101.
Since it is outside the detection range of, the time t2 (= L2 / v) when passing through the sensor 101 remains ON.

Next, the postal matter 200c is detected by the sensors 102 and 10.
The outputs of the sensors 102 and 103 when passing 3 will be described. Since the transparent portions 210 and 211 are outside the detection range of the sensor 102, from the time t102 at which the sensor 102 detects the leading edge of the mail to the passing time t2 (= L2).
/ V) remains on, but since the transparent portion 210 is within the detection range 301 of the sensor 103,
Is temporarily turned on at time t103 when the leading edge of the mail is detected, but at time t1 when the transparent portion 210 arrives.
It turns off during (= L1 / v). And time t1
After that, it turns on again.

As described above, the sensor 103 detects one mail piece 200c as if there were two or more mail pieces. If the length L1 of the transparent portion in the transport direction is small, it is determined that the interval is abnormal. Therefore, the line sensor 100 may be erroneously detected during transport, and foreign matter such as foreign matter may be detected as mail that is not suitable for the machine. Exclude to Exclude Object 5. At this time, the range 300, 301 of the transparent portion 210
Is the minimum width because the detection ranges 300 and 301 of the sensors 101 to 103 are limited and the detection ranges of the sensors 101 to 103 are at the same position.

Further, in the line sensor 100, inside the outline of the mail piece 200a and in the ranges 300 and 301.
If only the transparent portion 211 is detected outside, the sensor 1
In 01, 102, and 103, the output of the sensor does not turn off while the postal matter is passing, and the postal matter can be conveyed without being erroneously detected even in the subsequent conveyance paths, and therefore is not excluded.

From the above description, the line sensor is arranged as close to the separating portion as possible, the transparent range in the mail is detected upstream of the conveying path, and the transparent range is detected by the sensors 101 to 103. Since the detection ranges of the sensors 101 to 103 are the same position and have the minimum width, the detection range of the transparent portion can be minimized. Elimination by detection of transparent parts can be minimized. As a result, most of the partially transparent vinyl envelopes can be classified without being erroneously detected during transportation.

Further, at time t102 when the sensor 102 detects the leading edge of the mail piece 200c and the sensor 103 detects the mail piece 2
The inclination of the mail piece is measured from the difference of time t103 at which the leading edge of 00c is detected, and thereafter, at time t2 (= L2 / v) during which the mail piece shields the sensor 102, the sensor 103 is detected.
In the above, if the ON state after passing through the transparent portion 210 is not detected, the detection range of the transparent portion can be set to only 300, and therefore the detection range of the transparent portion can be further minimized. False detection during transportation is reduced and the classification rate is improved.

Next, details of conveyance control of a transparent body such as a vinyl envelope according to the fourth aspect of the present invention will be described with reference to FIGS. FIG. 3 is a plan view showing an outline of the conveyance path 3 constituted by a pair of conveyance belts 21, and FIG. 4 is a flow showing a control when a mail piece reaches the sensor 101. FIG. 5 is a timing chart when the line sensor 100 and the sensor 101 detect a mail item.

The postal matter 201a is an example of a partially transparent vinyl envelope. Range 21 within mail 201a
Reference numeral 5 is an opaque portion capable of detecting the presence of mail because each optical axis is shielded when passing through the line sensor 100. Also, since the range 212 is transparent, the light of the line sensor is indicated. It is a transparent area where the presence of mail cannot be detected because the shaft is not shaded.

The postal matter 201b is the position when the postal matter 200a passes through the sensor 101. Hereinafter, the output of each sensor and the control system of the sensor 101 when the mail reaches each sensor will be described.

When the postal matter 201a passes through the line sensor 100, each optical axis of the line sensor is shielded so that the output is turned on. When the transparent portion 212 reaches the line sensor 100, only the optical axes b and b'cannot detect the transparent portion 212, so that it is turned off. Time t4 (= L4
/ V, v is the transport speed, L4 is the length of the transparent portion 212 in the transport direction), and the opaque portion 215 arrives, so the optical axes b and b'are turned on. B, b'of the line sensor 100
Since the optical axes other than the above remain on for the time (L5 / v) from the leading edge to the trailing edge of the postal matter 201a, the presence of the transparent portion 212 in the postal matter 201a can be detected.

In the line sensor 100, the mail 20
When the transparent portion 212 is detected within the contour of 1a,
The storage device 62 has the transparent portion 212, the mail 2
The distance L3 between the tip of the transparent portion 212 and the tip of the transparent portion 212 and the length L4 of the transparent portion 212 in the transport direction are stored. Mail 2
When 01b passes the sensor 101 (401), the presence / absence information of the transparent portion 212 is acquired from the storage device 62 (402), and when the transparent portion 212 is present (40).
3) The distance L3 between the front end of the postal matter 201a and the front end of the transparent portion 212 and the length L4 of the transparent portion 212 in the transport direction are recognized (404). Then, the mail 201b is the sensor 10
During the time t5 (= L5 / v) passing through 1, the output is temporarily turned off by the transparent portion 212 for t4 (= L4 / v), but the off state is not detected ( 405).

From the above description, in the line sensor 100, the transparent portion 212 existing within the outline of the postal matter 201a.
Even if the mail is detected, it is stored in the storage device 62 and the mail 2
Each time 01b passes the sensor 101, the information can be used to ignore the detection of passage of the transparent portion 212, so that the detection range 300, 301 of the transparent portion 212 can be completely eliminated. As a result, it is possible to surely divide the vinyl envelope having the transparent portion without removing it,
The rejected mail can be minimized and the sorting rate can be improved.

Next, details of conveyance control of transparent bodies such as vinyl envelopes according to the fifth and sixth aspects of the present invention will be described with reference to FIGS. 6 to 10.

FIGS. 6 and 8 are plan views showing the outline of the conveying path 3 composed of a pair of conveying belts 21, and FIG.
It is a flow showing a control when the postal matter reaches the sensor 101. Here, the sensor 104 is the fourth detector of the present invention, which is a sensor capable of detecting a transparent body, and measures its length from the transit time of the mail. The sensor 104 is, for example, as shown at point A in FIG.
It is installed on the conveyance path 3 as close as possible to. 7 and 9
4 is a timing chart of detection of a mail item by the sensor 104 and the sensor 101.

The postal matter 202a has a partially transparent portion 21.
3 is an example of a vinyl envelope having No. 3; Mail 203a
Is an example of a mail piece that is separated by being duplicated. The mail items 202a and 203a are positions when passing through the sensor 104, and the mail items 202b and 203b are the mail items 202.
This is the position when a and 203b pass the sensor 101.

In FIGS. 6 and 7, when the mail piece 202a having the transparent portion 213 reaches the sensor 104, the output is turned on. Since the sensor 104 can detect a transparent body, the transparent portion 2 existing in the mail piece 202a can be detected.
Even though 13 passes through the optical axis of the sensor 104, the postal matter 202
While a is passing, t6a (= L6a / v) remains on, and the length L6a of the mail piece 202a can be accurately measured. However, in the sensor 101, since the output is temporarily turned off when the transparent portion 213 existing in the postal matter 202a arrives, the length of the postal matter 202b becomes L6b. Then, from the time t101 when the opaque portion 215 is detected, the state is turned on from the rear end of the postal matter.

The control in the sensor 101 will be described below with reference to FIG. When the mail piece 202b reaches the sensor 101 (501), the sensor 1 is read from the storage device 62.
The length L6a of the mail measured in 04 is acquired (50
2). Subsequently, the length L6b of the mail piece is measured by the sensor 101 (503), and the difference ΔL1 (= L6b−L6) between them is measured.
a) is calculated (504). When the difference ΔL1 becomes zero,
As normal mail, it is sorted into the intended sorting port 15 (5
05). In the case of the postal matter 202a, the length L6a is accurately measured by the sensor 104.
In the case of 1, since the transparent portion 213 exists inside the mail,
The length of the mail piece is as short as L6b. The difference △
Since L1 is negative, it is determined to be a vinyl mail item, and it is classified into the target classification port 15 (507). further,
The sensor 101 detects that the postal matter has reached the output when the output is turned on at the time t101. However, since this is detected by the opaque portion 215 after the transparent portion 213, it is detected as the postal matter. Not (5
08).

Further, as shown in FIGS. 8 and 9, the double-fed postal items are often shifted in the conveying direction due to the conveying force applied from the conveying belt, and the length thereof becomes long. In the case of double-delivered mail 203a,
The lengths L6a and L6b of the mail piece are measured from the time when the outputs of the sensors 104 and 101 are in the ON state, and the mail piece 2
Similar to 02a, when reaching the sensor 101, the difference ΔL1 (= L6b−L6a) between them is obtained. Since ΔL1 is positive, the letter is judged as a double-delivery letter and is rejected in the reject box (506).

As described above, with the sensor 104 arranged as close to the hopper 1 as possible, the mail items 205a, 2
Since the length of 06a can be accurately measured, by comparing it with the length of the sensor 101 for measuring the length of the subsequent mails, the vinyl mails partially having the transparent portion can be surely classified into the target category. Since the mail can be sorted into the mouth and only the double-fed mail can be reliably excluded, the sorting rate can be improved.

Next, details of conveyance control of a transparent body such as a vinyl envelope according to the seventh aspect of the present invention will be described with reference to FIGS.
Described in.

11 and 12 are plan views showing the outline of the conveying path 3 formed of a pair of conveying belts 21, and FIG.
Is a flow showing the control when the postal matter reaches the sensor 104 ′. Where the sensors 104, 104 '
Is a fourth detector of the present invention, which is a sensor capable of detecting a transparent body, and measures its length from the transit time of mail. FIG. 13 is a timing chart of detection of mail items by the sensors 104 and 104 '.

The postal matter 204a has a partially transparent portion 21.
4 is an example of a vinyl envelope having No. 4; Mail 205a
Is an example of a mail piece that is separated by being duplicated. The mail items 204a and 205a are positions when passing the sensor 104, and the mail items 204b and 205b are positions when the mail items 204a and 205a pass the sensor 104 ′.

When the postal matter 204a passes through the sensor 104, the optical axis of the sensor 104 is shielded so that the output is turned on. Even when the transparent portion 214 reaches the sensor 104, the sensor 104 can detect the transparent portion 214 and therefore does not turn off, and is turned off only when the trailing edge of the postal matter 204a reaches the sensor 104. . Sensor 1
Similarly, when passing through 04 ', regardless of the presence of the transparent portion 214, it is turned on at the leading end of the mail and turned off at the trailing end. As described above, the lengths L7a and L7b of the mail piece can be accurately measured by the sensors 104 and 104 ′. As shown in FIG. 14, (60
1) After obtaining the length L7a of the postal matter at the sensor 104 (602), measuring the length L7b (603), and subsequently,
The difference ΔL2 (= L7b−L7a) is calculated (60
4). Although the transparent portion 214 is present in the postal matter 204a, ΔL2 is zero because the length can be accurately measured by any of the sensors. From the result, it is classified as a normal mail item.

In the case of the double-delivered postal matter 205a, the conveying force applied from the conveying belt causes a deviation in the conveying direction, and the length may be long or short. In either case, it is determined that the length of the mail piece has changed (606) and the mail piece is rejected in the reject box.

From the above results, by comparing the lengths of the mail items measured by the sensors 104 and 104 'capable of detecting the transparent body, the vinyl envelope is classified as a normal letter and the double-fed letter is surely obtained. It is possible to eliminate the erroneous division due to the double-delivery letter and the elimination of the vinyl envelope, and it is possible to improve the division rate.

[0046]

As described above, according to the present invention,
In the line sensor, the detection range of the transparent part existing in the outline of the mail is limited to the detection range of the subsequent sensors, and since the detection range has the minimum width, it is partially transparent vinyl. Minimize the elimination of envelopes.

Further, when the line sensor detects a transparent portion existing in the outline of the mail, the control unit stores the position of the transparent portion from the front end of the mail and the length in the conveying direction, and the subsequent sensors In that, when the mail arrives, the information is acquired from the control unit, and while the mail is passing through the sensor, the transparent part is not detected so as to have the transparent part. The vinyl envelopes can be reliably classified without being excluded.

Further, a sensor capable of detecting a transparent body is arranged, and the length of the mail piece is accurately measured by the sensor,
By comparing the length of the mail piece measured by the subsequent sensors, it is possible to detect only the double-fed mail piece,
It can be surely eliminated. Further, a vinyl mail piece partially having a transparent portion can be surely sorted into the target sorting port.

Further, when the line sensor and the sensor capable of detecting the transparent body are arranged as close as possible to the separating portion, information on the presence or absence of the transparent portion of the mail and information on the length thereof are acquired immediately after the separation. Since it can be used for the control in the subsequent conveyance path, the elimination due to erroneous detection can be further reduced.

Further, a plurality of sensors capable of detecting a transparent body are arranged, the lengths of the mail pieces are accurately measured by the sensors, and those values are compared with each other. By detecting the mail as a sent mail, it is possible to more reliably exclude only the double-fed mail.

Due to the above effects, it is possible to minimize the manual sorting of the rejected mail, so that it is possible to provide a device having a good sorting rate.

[Brief description of drawings]

FIG. 1 is a plan view showing an outline of a conveyance path in which a sensor according to the present invention is arranged.

FIG. 2 is a timing chart of the sensor according to the present invention.

FIG. 3 is a plan view showing an outline of a conveyance path in which a sensor according to the present invention is arranged.

FIG. 4 is a flow chart showing control according to the present invention.

FIG. 5 is a timing chart of the sensor according to the present invention.

FIG. 6 is a plan view showing an outline of a conveyance path in which a sensor according to the present invention is arranged.

FIG. 7 is a timing chart of the sensor according to the present invention.

FIG. 8 is a plan view showing an outline of a conveyance path in which a sensor according to the present invention is arranged.

FIG. 9 is a timing chart of the sensor according to the present invention.

FIG. 10 is a flowchart showing control according to the present invention.

FIG. 11 is a plan view showing the outline of a conveyance path in which a sensor according to the present invention is arranged.

FIG. 12 is a plan view showing an outline of a conveyance path in which a sensor according to the present invention is arranged.

FIG. 13 is a timing chart of the sensor according to the present invention.

FIG. 14 is a flowchart showing control according to the present invention.

FIG. 15 is a front view showing an outline of a sorting and collecting apparatus for mail.

FIG. 16 is a front view showing an outline of a sorting port of a sorting / collecting device for mail.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hopper, 2 ... Bundle of mail items, 3, 8, 10, 17 ... Conveyance path, 4 ... Thickness measuring device, 5, 18, 61 ... Exclusion box, 6 ...
Reading unit, 7 ... Control unit, 9 ... Printing device, 11 ... Multi-pass transport path, 12 ... Sorting gate, 13 ... Operation panel, 1
4, 15 ... Sorting port, 16 ... Sorting gate timing sensor, 19 ... Recognition unit, 21 ... Conveyor belt, 50 ... Base plate, 60 ... Double feed detector, 62 ... Storage device, 100
... line sensor, 101, 102, 103 ... optical sensor, 104, 104 '... vinyl detection sensor, 200
a, 200b, 200c, 201a, 201b, 202
a, 202b, 203a, 203b, 204a, 204
b, 205a, 205b ... Mail, 210, 211, 2
12, 213, 214 ... Transparent parts in mail, 215 ...
Opaque part in mail, 300, 301 ... Sensor 10
1, 102, 103, 104, 104 'detection range,
a, a ', b, b' ... a pair of optical axes of the line sensor 100, v ... transport speed

Claims (7)

[Claims] 1. A mail piece is separated one by one, and the mail piece is conveyed by being sandwiched by a conveying path composed of a pair of upper and lower belts, and an address reading section reads an address and a postal code of the mail piece.
In a device that generates a bar code corresponding to this address with a recognition unit, prints the bar code on a postal matter, and then sorts into a sorting port by a sorting gate, a plurality of pairs of optical sensors are arranged in a direction perpendicular to the conveying direction. Side by side, the outline of the mail piece is detected, and further inside the outline, a first detector that detects an area that is not shielded from light and a downstream side of the detector that blocks the optical axis when the mail piece passes through. A pair of optical sensors for detecting the passage of the postal matter, and a second detector in which the pair of sensors are arranged at a plurality of positions on the conveyance path, and a downstream side of the first detector, It has a third detector which is composed of a plurality of pairs of optical sensors, and has sensors for detecting passage of mails arranged at a plurality of positions on the conveyance path, and detection of the pair of optical sensors of the second detector. Range and above third
The apparatus for handling paper sheets, wherein a detection range of a pair of optical sensors of a plurality of pairs of optical sensors of the detector is set to the same position. 2. The postal items are separated one by one, and the postal items are sandwiched and conveyed by a conveying path composed of a pair of upper and lower belts, and the address and the postal code are read by an address reading unit,
In a device that generates a bar code corresponding to this address with a recognition unit, prints the bar code on a postal matter, and then sorts into a sorting port by a sorting gate, a plurality of pairs of optical sensors are arranged in a direction perpendicular to the conveying direction. Side by side, the outline of the mail piece is detected, and further inside the outline, a first detector that detects an area that is not shielded from light and a downstream side of the detector that blocks the optical axis when the mail piece passes through. A pair of optical sensors for detecting the passage of the postal matter, and a second detector in which the pair of sensors are arranged at a plurality of positions on the conveyance path, and a downstream side of the first detector, It has a third detector which is composed of a plurality of pairs of optical sensors and has sensors for detecting passage of mails arranged at a plurality of positions on the conveyance path. Detects areas where the optical sensor is not shielded That region, a second detector of the pair of optical sensors, or a third detector of the paper sheet handling apparatus being characterized in that the same position as the detection range of the optical sensor pairs. 3. A mail piece is separated one by one, and the mail piece is conveyed by being sandwiched by a conveying path composed of a pair of upper and lower belts, and an address reading section reads an address and a zip code of the mail piece.
In a device in which a barcode corresponding to this address is generated by a recognition unit, the barcode is printed on a postal matter, and then sorted into sorting ports by a sorting gate, the first detector is passed through one sheet of paper. A paper sheet handling device, characterized in that the paper sheet handling device is arranged in a conveyance path in the vicinity of a separating section for separating the sheets. 4. The mail is separated one by one, and the mail is pinched and conveyed by a conveying path composed of a pair of upper and lower belts, and an address reading unit reads the address and zip code of the mail,
In a device that generates a bar code corresponding to this address with a recognition unit, prints the bar code on a postal matter, and then sorts into a sorting port by a sorting gate, a plurality of pairs of optical sensors are arranged in a direction perpendicular to the conveying direction. Side by side, the outline of the mail piece is detected, and further inside the outline, a first detector that detects an area that is not shielded from light and a downstream side of the detector that blocks the optical axis when the mail piece passes through. A pair of optical sensors for detecting the passage of the postal matter, and a second detector in which the pair of sensors are arranged at a plurality of positions on the conveyance path, and a downstream side of the first detector, It has a third detector which is composed of a plurality of pairs of optical sensors and has sensors for detecting passage of mails arranged at a plurality of positions on the conveyance path. Detects areas where the optical sensor is not shielded In that area, when detecting an area where the optical sensor is not blocked, the paper sheet handling apparatus characterized by storing the information in the storage device. 5. The postal items are separated one by one, and the postal items are conveyed by being sandwiched by a conveying path composed of a pair of upper and lower belts, and the address and the postal code are read by an address reading unit,
A device that generates a bar code corresponding to this address in the recognition unit, prints the bar code on the mail piece, and then sorts the bar code into the sorting port by the sorting gate, by blocking the optical axis when the mail piece passes. Comprising a pair of optical sensors for detecting passage of mail, a second detector in which these pair of sensors are arranged at a plurality of positions on the conveying path, and a plurality of pairs of optical sensors, A third detector in which a sensor for detecting the above is arranged at a plurality of positions on the conveyance path, and further, a separation unit for separating between the second to third detectors or one sheet at a time A fourth detector capable of detecting a transparent body is arranged in the vicinity of, and the lengths of mail items measured by the second, third, and fourth detectors are compared. A device for handling paper sheets. 6. The mail is separated one by one, and the mail is sandwiched and conveyed by a conveying path composed of a pair of upper and lower belts, and the address reading unit reads the address and zip code of the mail,
In a device that generates a bar code corresponding to this address by a recognition unit, prints the bar code on a postal matter, and classifies the bar code into sorting ports by a sorting gate, the fourth detector passes one sheet of paper. A paper sheet handling device, characterized in that the paper sheet handling device is arranged in a conveyance path in the vicinity of a separating section for separating the sheets. 7. The postal items are separated one by one, and the postal items are conveyed by being sandwiched by a conveying path composed of a pair of upper and lower belts, and the address and the postal code are read by an address reading unit,
A fourth detector capable of detecting a transparent body in a device for generating a bar code corresponding to this address by a recognition unit, printing the bar code on a mail piece, and then classifying the bar code into sorting ports by a sorting gate. At a plurality of locations between the first to third detectors installed at a plurality of locations on the transport path, and comparing the lengths of the mail items measured by the fourth detectors. Characteristic paper sheet handling device.