JP2000262976A - Conveyor for paper sheets - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveyor for paper sheets in which when conveying various kinds of paper sheets, double-folded paper sheets are surely detected to improve workability and reliability. SOLUTION: This conveyor is provided with a firs conveying belt 20 and a second conveying belt 21 which are interposed in mid-way of a main conveying path 6 and in which a part of mail P that is paper sheets is put therebetween from both side faces and they are set at different conveying speed from each other and to double-folded mail of a part not put therebetween, the shape is changed to convey it, with first, and second thickness detecting sensors 25, 26 for detecting a change in the shape of the mail to the part not put between the belts from the side wherein conveying speed is slow at the positions of the belts immediately before and after conveying, and with a control part 30 for receiving detection signals from the sensors to distinguish the double-folded folded mail for the simple leaf mail by the degree of the shape change and perform control so that they are conveyed and guided in the different directions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention constitutes a part of a mail sorting apparatus for sorting mails, for example, mails, by postal code. The present invention relates to a sheet conveying device having a function of detecting a folded sheet to be detected.

[0002]

2. Description of the Related Art A postal mail sorting apparatus which sorts postal materials such as paper sheets quickly and completely automatically by postal code only by supplying to a supply unit by an operator is used. Efficiency is being improved.

[0003] This type of apparatus is provided with a transport device for transporting mail from a predetermined processing section to another processing section. In this transport device, a mail is sandwiched between a pair of transport belts, and the respective transport belts are caused to travel at the same speed, thereby transporting the mail.

[0004] As the postal matter thus processed,
Not only single-leaf postcards and sealed letters, but also round-trip postcards, which are folded mails, are mixed. In particular, in the case of a government-made reciprocating postcard, the paper quality is relatively thick, and there is almost no problem in terms of mechanical processing.

However, private reciprocating postcards having relatively thin paper quality are used. Such reciprocating postcards of thin leaves are unsuitable for mechanical processing, so they were removed at the time of supply to the apparatus, and were separately classified manually.

[0006]

However, the amount of mail collected is enormous, and it is extremely troublesome and time-consuming to manually sort thin leaf reciprocating postcards therefrom. In many cases, work leaks occur, and the machine can be subjected to mechanical processing as it is. In this case, troubles such as jamming and breakage occur.

[0007] In addition, even with the design concept of recognizing the existence of such thin-folded folded mail from the beginning and obtaining safe transport of all mail, the mail is sandwiched between a pair of transport belts. Given the premise of transport, it is extremely difficult to absorb differences in the speed of the transport belt and differences in frictional force.

The present invention has been made based on the above circumstances, and an object of the present invention is to reliably detect a folded sheet when transporting a wide variety of sheets. It is an object of the present invention to provide a paper sheet transport device that improves work efficiency and reliability.

[0009]

In order to solve the above-mentioned problems and to achieve the object, a sheet conveying apparatus according to the present invention comprises, as a first aspect, a single sheet sheet and a folded sheet sheet. Supply means for supplying paper sheets in a mixed state, take-out means for sequentially taking out the paper sheets one by one from the supply means, and carrying means for carrying the paper sheets taken out by the take-out means; And an auxiliary conveying means which is contiguous with the folded paper sheet and conveys the folded paper sheet while changing its form, and detects a change in the form of the paper sheet at a position immediately before the conveyance by the auxiliary conveying means and at a position thereafter. And a control unit that receives a detection signal from the detection unit and determines whether the sheet is a single sheet or a folded sheet.

According to a second aspect of the present invention, there is provided the supply means, the take-out means, and the transfer means, and the form is changed with respect to the folded sheet interposed in the middle of the transfer means. And a control unit for detecting a change in the form of the sheet at a position immediately before the conveyance by the auxiliary conveyance unit and a position immediately after the conveyance by the auxiliary conveyance unit, and the control unit. .

According to a third aspect of the present invention, there is provided the supply means, the take-out means, and the transfer means, the auxiliary transfer means, the detection means, and a detection signal received from the detection means, and a single sheet of paper is received. Control means for discriminating between the sheet and the folded sheet and controlling the sheet to be guided in different directions.

According to a fourth aspect of the present invention, there is provided the supply means, the take-out means, and the transport means, wherein the paper sheets are interposed in a middle portion of the transport means, and the paper sheets are sandwiched from both sides thereof in a gap therebetween. A first auxiliary transport unit and a second auxiliary transport unit configured to transport a folded sheet set at different transport speeds while changing the form thereof; and a first auxiliary transport unit and a second auxiliary transport unit. It is characterized by comprising a detecting means for detecting a change in the form of the sheet at a position immediately before the conveyance by the conveyance means and a position immediately after the conveyance, and the control means.

According to a fifth aspect of the present invention, there is provided the supply means, the take-out means, and the transport means, wherein the first auxiliary transport means and the second auxiliary transport means, and the first auxiliary transport means and the first auxiliary transport means. A first detecting means for detecting the form of the sheet at a position immediately before the conveyance by the second auxiliary conveying means, a second detecting means for detecting a change in the form of the sheet at a position immediately after the conveyance, Control means for receiving a detection signal from the first and second detection means, discriminating between a single leaf sheet and a folded sheet, and controlling the sheet to be transported in different directions from each other. I do.

According to a sixth aspect of the present invention, there is provided the supply means, the take-out means, and the transport means. A first auxiliary transporting means and a second auxiliary transporting means for transporting the folded sheets at a portion which is not sandwiched by being set at different transport speeds, and transporting the folded sheets in a different form; A first detecting means for detecting a change in the form of the paper sheet at a position immediately before the conveyance by the second auxiliary conveying means and a portion which is not sandwiched between the first and second auxiliary conveying means; 1, a second detecting means for detecting a change in the form of the paper sheet at a position immediately after the conveyance by the second auxiliary conveying means and for a portion not sandwiched between the first and second auxiliary conveying means; Characterized by comprising the above-mentioned control means. That.

According to a seventh aspect of the present invention, there is provided the supply means, the take-out means, and the transport means, wherein the first auxiliary transport means and the second auxiliary transport means, the first detection means and the first 2 and a detection signal from these first and second detection means, and discriminates between a single leaf sheet and a folded sheet according to the degree of change in the form of the paper sheet, and determines directions different from each other. And control means for performing control to guide the transfer to

According to an eighth aspect of the present invention, there is provided the supply means, the take-out means, and the transport means, wherein the first auxiliary transport means and the second auxiliary transport means, and the first and second auxiliary transport means. A first detection for detecting a change in the form of the sheet at a position immediately before the conveyance by the conveyance means and a portion not sandwiched between the first and second auxiliary conveyance means from the side of the auxiliary conveyance means having a low conveyance speed; Means and a position immediately after the conveyance by the first and second auxiliary conveyance means and a portion of the paper sheet from a side of the auxiliary conveyance means having a lower conveyance speed to a portion not sandwiched between the first and second auxiliary conveyance means. A second detecting means for detecting a change in the above, and the control means.

According to a ninth aspect of the present invention, there is provided the supply means, the take-out means, and the transport means, wherein the first auxiliary transport means and the second auxiliary transport means, and the first and second auxiliary transport means. A pair of first detection means for detecting a change in the form of the sheet at a position immediately before the conveyance by the conveyance means and a portion not sandwiched between the first and second auxiliary conveyance means from both the auxiliary conveyance means. And detecting a change in the form of the sheet at a position immediately after conveyance by the first and second auxiliary conveyance means and at a portion not sandwiched between the first and second auxiliary conveyance means from both the auxiliary conveyance means. A pair of second detecting means, and a single sheet and a folded sheet according to the degree of change in the form of the sheet upon receiving a detection signal from the pair of first and second detecting means. Control to discriminate and guide the conveyance in different directions Characterized by comprising a stage.

By providing a means for solving such a problem, it is possible to transport a wide variety of paper sheets.
Separated sheets are reliably separated, improving work efficiency and reliability.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. A mail is applied as a paper sheet and a mail sorting processing apparatus is applied as a paper sheet processing apparatus. FIG. 1 shows the entire mail sorting apparatus. On the right side of the apparatus main body 1 in FIG. In particular, a panel-shaped operation unit 3 is provided on the upper surface of the side base unit 2.

Supply means for the postal matter P as a paper sheet on which destination information such as a zip code or a destination address is written or printed at substantially the center in the vertical direction of the apparatus main body 1 and over the entire length in the horizontal direction. Is provided.

The right end of the supply unit 4 in the drawing is a mail take-out side, in which a take-out unit 5 as a take-out means is provided, and a main conveyance path 6 comprising a conveyance belt as a conveyance means.
Is provided. Downstream of the take-out section 5 of the main transport path 6,
A reciprocating postcard detection unit 7 serving as a two-fold paper sheet detection unit described later is provided.

Further, on the downstream side of the reciprocating postcard detector 7, an exclusion branch 8 is branched. This exclusion branch 8
An exclusion pocket (not shown) is provided opposite to the tip of the, and guides the detected reciprocating postcard.

A bar code reading section 9 is provided on the main transport path 6 on the non-branch downstream side of the exclusion branch path 8.
Further, the main transport path 6 repeats a plurality of bends from the upper part to the lower part in the side base part 2, and exits from the side base part 2 toward one side end upper part of the apparatus main body 1.

A stepped path section 10 is arranged opposite the main transport path 6 on the apparatus main body 1 side. The step path section 10 includes a plurality of switching gates at predetermined intervals in the vertical direction of the apparatus main body 1.

A plurality of sorting boxes 11 serving as sorting means are arranged in the horizontal direction corresponding to the respective steps of the above-mentioned step-pass section 10, and these form an accumulation section 12. The sorting boxes 11 of the stacking unit 12 are aligned along the up-down direction, and occupy most of the apparatus main body 1 on the upper side of the supply unit 4.

A plurality of temporary storage boxes 13 partitioned by a plurality of partitions are provided in parallel along the lower side of the supply section 4 in the apparatus main body 1.

In the mail sorting apparatus thus configured, the worker supplies the collected mails P to the supply unit 4. At this time, the worker performs the destination information (classification information) such as the zip code and the address of the first side of the mail P.
Are stored in an upright position with their rear ends aligned so that the surfaces on which are written or printed face the same direction.

The mails P supplied to the supply unit 4 are taken out one by one in the take-out unit 5 and guided to the main transport path 6. The postal matter P is sequentially conveyed along the main conveyance path 6, and a reciprocating postcard detecting unit 7 detects a reciprocating postcard mixed in the postal matter as described later. The detected reciprocating postcard is guided to the exclusion branch 8 and is accumulated in the exclusion pocket.

All postal matter P not detected by the reciprocating postcard detector 7 is conveyed along the main conveying path 6 as it is. When facing the barcode reading section 9, a barcode (not shown) provided in advance to the mail P is read.

As a bar code, a code (for example, a customer code) determined according to the destination information and written in advance by the user, an address code assigned to the address, and a postal code are provided. Or a mail ID code assigned to a postal matter for which destination information cannot be recognized.

At the timing when the postal matter P whose bar code is read by the bar code reading section 9 reaches the step pass section 10, the switching gate of the step pass section 10 is controlled to be switched. The postal matter P is guided to the designated exclusion branch, and is further sorted in the designated sorting box 11 in the accumulation unit 12.

Next, the reciprocating postcard detector 7 will be described in detail. As shown in FIG. 2, a pair of transport belts 20 and 21 are interposed between the main transport path 6. The lower side is referred to as a first transport belt 20, which is a first auxiliary transport unit, and is stretched between a driving roller 22a and a transport roller 22b. The transport speed Va of the first transport belt 20 is set to be the same as the transport speed of the transport belt forming the main transport path 6.

The upper side is called a second transport belt 21 as a second auxiliary transport means, and is stretched between another driving roller 23a and another transport roller 23b. The transport speed Vb of the second transport belt 21 is set to a speed (Va> Vb) lower than the transport speed Va of the first transport belt 20 by a predetermined speed.

The first and second conveyor belts 20, 21
Are provided in parallel with a narrow gap therebetween so as to convey the mail P in the same direction as the main conveyance path 6.
The gap is opposed to the position of the postal matter P in the main transporting path 6, where the postal matter P is transported in a state sandwiching the postal matter P, and the postal matter P can be transferred to the main transporting path 6. .

In practice, as shown in FIG. 4A, each of the conveyor belts 20 and 21 is parallel to a horizontal guide surface G at a predetermined interval, and is perpendicular to the guide surface G. And is stretched between rollers so as to have a narrow gap.

Therefore, the transport belts 20, 21
Almost only the upper side of the postal matter P transported between the belts is sandwiched between the belts 20 and 21, and the space between the lower edge of the belt and the guide surface G is completely exposed.

At a position between the lower edge of each of the conveyor belts 20 and 21 and the guide surface G, a first thickness detecting sensor 25 as a first detecting means for the mail P to be conveyed is provided.
And a second thickness detection sensor 26 as a second detection means.

As shown in FIG. 2 again, the first thickness detecting sensor 25 is provided at the end of the first and second conveyor belts 20 and 21 on the mail carry-in side, and the second thickness detecting sensor 25 is provided. Reference numeral 26 is provided at the end of the first and second conveyor belts on the mail outlet side.

First and second thickness detecting sensors 25 and 26
Are arranged only on the side of the second conveyor belt 21 having a slower conveying speed, irradiate the postal matter P to be conveyed with laser light, receive the laser light reflected from the postal matter, and reflect the laser light. The distance between the sensor and the mail is detected according to the time.

Then, the first and second thickness detecting sensors 2
Reference numerals 5 and 26 are electrically connected to the control unit 30 serving as control means, and send a detection signal to the control unit 30 from each sensor.

In the control unit 30, a signal of the distance between the sensor and the mail sent from the first thickness detection sensor 25 and the second thickness detection sensor 26 is stored in the control unit 30 in advance. There is provided an arithmetic circuit for performing an operation on the reference value and changing the thickness value of the postal matter P at each position.

The control unit 30 has a comparison circuit for comparing the thickness dimensions, which are calculated values based on the detections of the thickness detection sensors 25 and 26, with each other. The switching gate K provided at the branching point with the exclusion branching path 8 is set to drive and control.

Next, the state when the postal matter P is conveyed to the reciprocating postcard detecting section 7 constructed as described above will be described based on the configuration and operation shown in FIGS. 2 to 4 and the flowchart shown in FIG. Will be explained.

The postal matter P conveyed from the main conveyance path 6 receives the first and second conveyor belts 20 in the reciprocating postcard detector 7.
The first thickness detection sensor 25 detects the postal matter P at a position immediately before being pinched by 21.

Step S in the flowchart of FIG.
The signal is sent to the control unit 30. In step S2, the control unit 30 performs an operation to change to the thickness dimension of the mail P based on the detection signal from the first thickness detection sensor 25.

As described above with reference to FIG. 4A, the upper side of the postal matter P is the first and second transport belts 20, 20.
21 and is conveyed in a standing position with the lower end on the guide surface G.

When the postal matter P is a single-leaf postcard or a sealed letter, the mail P is conveyed to one of the first and second conveying belts 20 and 21 having different conveying speeds, while being conveyed. Is in sliding contact with.

Further, if two mails P are conveyed from the main conveyance path 6 in a state where they are taken out, a speed difference occurs between the mails P due to the conveyance speed of the conveyance belts 20 and 21. As a result, the postal matter picked up by two sheets is separated from each other and delivered to the main transport path 6 in a state in which the picking up of two sheets has been eliminated.

In any case, the postal matter P is detected by the second thickness detecting sensor 26 at a position immediately after being carried out of the belts 20 and 21, and a signal thereof is sent to the control unit 30. That is, step S3 in the flowchart of FIG.

Next, proceeding to step S4, in the control section 30, which has received the detection signal from the second thickness detection sensor 26, the arithmetic circuit performs an operation to change the thickness dimension of the mail P. Further, the process proceeds to step S5, where the control unit 30
The thickness A of the postal matter P calculated from the signals of the second thickness detection sensors 25 and 26 before the belt is carried in is compared with the thickness B after the carry-out.

For single leaf postcards and sealed letters, the first and second
The difference in the thickness dimension of the mail P between the carry-in side and the carry-out side of the transport belts 20 and 21 is zero, and even if there is a run-out in the main transport path 6 and the transport belts 20 and 21,
It falls within a predetermined value range.

Further, in the case of mails which are carried in a two-sheet state and are carried out separately from each other, there is a difference in thickness between two sheets and one sheet on the carry-in side and the carry-out side. However, it falls within a predetermined value range and is different from a reciprocating postcard.

As shown in FIG. 3, when the reciprocating postcard Pw of the mail is conveyed to the reciprocating postcard detecting unit 7, the form being conveyed changes. That is, the reciprocating postcard Pw is divided into a surface a1 in contact with the first conveyor belt 20 and a surface a2 in contact with the second conveyor belt 21 because the postcard Pw is folded in two.

As described above, each transport belt 20,
Since there is a difference in the conveying speed at 21, the surfaces a1 and a2 of the reciprocating postcard Pw are shifted. In particular, since the exposed portion of the reciprocating postcard Pw from the lower edge of each of the conveyor belts 20 and 21 to the guide surface G is not sandwiched between the belts, a change in the shift appears greatly.

As shown in FIG. 4B, a reciprocating postcard Pw
Is folded on the guide surface G and is exposed from the lower edge of each of the conveyor belts 20 and 21, and is in contact with the first conveyor belt 20 which is the faster conveyor side.
Is pulled fast.

On the other hand, the surface a2, which contacts the second conveyor belt 21 on the side where the conveying speed is slower, is curved and deformed by the influence of the surface a1 being pulled. Since this curved deformation always appears to bulge toward the second conveyor belt 21, the distance detected by the second thickness detection sensor 26 and the normal thickness of the mail P
Narrow compared to.

In step S6, if the postal matter P is a single leaf, there is almost no difference between the thickness dimension A before the carry-in and the thickness dimension B after the carry-out, and the result is No, and the process proceeds to the step S7 to perform the normal processing. . That is, the postal matter P is directly conveyed along the main conveyance path 6, and the processing described above is performed.

However, in the case of the reciprocating postcard Pw, when the thickness dimension A before carrying in is compared with the thickness dimension B after carrying in, A and B are different from the phenomenon described above, and
Then, it becomes Yes.

That is, the control unit 30 recognizes the passage of the reciprocating postcard Pw, and sends a switching signal to the switching gate K at a timing immediately before the reciprocating postcard Pw reaches the exclusion branch 8. This reciprocating postcard Pw is switched and guided to the exclusion branch 8 and is guided to the exclusion pocket.

As a result, it is possible to eliminate the trouble of selecting the round postcard Pw from the huge amount of collected postal matter P, to improve the sorting efficiency, to eliminate the occurrence of jams due to the round postcard, and to reduce the roundtrip postcard. It is possible to prevent damage to itself and improve reliability.

Note that the second thickness detecting sensor 26 is
The detection is performed by arranging the second conveyance belts 20 and 21 so as to oppose the position immediately after the conveyance of the first and second conveyance belts 20 and 21. May be detected at the position. However, depending on the position, it is conceivable that the state in which the form change of the reciprocating postcard Pw appears is very small, so it is necessary to use a more accurate sensor.

Further, in the above embodiment, the first and second transport belts 21 are disposed on the side of the second transport belt 21 which is the slower transport speed.
Although the thickness detection sensors 25 and 26 are disposed, the present invention is not limited to this.

As shown in FIGS. 6A and 6B, not only the first conveyor belt 20 but also the second conveyor belt 2
The third and fourth thickness detecting sensors 27 and 28 having the same function may be arranged so as to face the first side.

The flowchart is as shown in FIG. In step T1, the first thickness detection sensor 25 and the third thickness detection sensor 27 measure the distance from both sides of the mail P on the loading side of each of the transport belts 20, 21, and send the signal to the control unit 30. .

In step T2, the sum of the distances (a + b) is calculated from the respective detection signals and stored. Next, the process proceeds to step T3, where the second thickness detection sensor 26 and the fourth thickness detection sensor 28 measure the distance from both sides of the mail P on the unloading side of each of the conveyor belts 20 and 21, and the signal thereof is output. Send to control unit 30.

In step T4, the sum (c + d) of the distances is calculated from each detection signal and stored. Next, in step T5, the value (a + b) previously stored in the control unit 30 is compared with the value (c + d) stored thereafter.

In the case of a single-leaf postcard or sealed letter, even if two sheets are taken, there is almost no difference.
Then, the process proceeds to step T7 to perform a normal process. That is, the postal matter P is directly conveyed along the main conveyance path 6, and the processing described above is performed.

However, in the case of the reciprocating postcard Pw, as described above, the surface a2 on the side of the second conveyor belt 21 having the slower conveying speed is greatly curved, while the first conveyor which is on the faster conveying speed side. The surface a1 on the side of the belt 20 also changes to some extent.

After all, the result of the comparison in step T5 is Y
It becomes es and it is concluded that it is a round trip postcard.
Then, the process proceeds to step T6, in which the switching gate K is switched and driven in a timely manner, and this reciprocating postcard Pw is guided from the exclusion branch path 8 to the exclusion pocket.

That is, although the cost is unavoidably increased by the increase in the number of sensors as compared with the configuration described above, the surface on the side of the first transport belt 20 which is the side where the reciprocating postcard Pw is transported at a higher speed. Even a slight deformation of a1 can be caught, and the difference in comparison between the carry-in side and the carry-out side in step T5 is large, so that more accurate detection can be performed.

Further, a postal matter is applied as a paper sheet and a reciprocating postcard is applied as a folded paper sheet.
The present invention is not limited to this, and can be applied to all devices that need to detect a folded sheet from among a mixture of a single sheet and a folded sheet.

[0072]

As described above, according to the present invention, when conveying various kinds of paper sheets, the folded paper sheets can be reliably detected, so that the work efficiency and reliability can be improved. This has the effect.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a mail sorting apparatus which is a paper sheet processing apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a reciprocating postcard detecting unit according to the first embodiment.

FIG. 3 is a diagram illustrating the embodiment and illustrating a state where the reciprocating postcard is conveyed to the reciprocating postcard detecting unit.

FIG. 4 is a view showing the embodiment, illustrating a state in which a normal postal matter and a reciprocal postcard are different in a reciprocal postcard detecting unit.

FIG. 5 is a flowchart showing a reciprocating postcard detecting unit according to the embodiment;

FIG. 6 is a diagram illustrating another embodiment of the present invention, illustrating a state in which a normal postal matter differs from a reciprocating postcard in a reciprocating postcard detecting unit.

FIG. 7 is a flowchart showing a reciprocating postcard detection unit according to the embodiment;

[Description of Signs] P: postal matter (sheets), 4: supply unit (supply unit), 3: take-out unit (take-out unit), 6: main conveyance path (conveyance unit), 20: first conveyance belt (First auxiliary transport means), 21: second transport belt (second auxiliary transport means), 25: first thickness detection sensor (first detection means), 26: second thickness detection Sensor (second detecting means), 27: third thickness detecting sensor (third detecting means), 28: fourth thickness detecting sensor (fourth detecting means), 30: control section (control means) ).

Claims (9)

[Claims] 1. A supply means for supplying single-leaf paper sheets and a folded paper sheet in a mixed state, a take-out means for sequentially taking out the paper sheets one by one from the supply means, and the take-out means Transport means for transporting the paper sheets taken out by the auxiliary transport means, the auxiliary transport means being connected to the transport means and transporting the folded sheets in a different form. Detecting means for detecting a change in the form of the paper sheet at a position immediately before conveyance by the printer and a position thereafter, receiving a detection signal from the detecting means, and obtaining a single-leaf paper sheet and a folded paper sheet. And a control unit for determining the type of the sheet. 2. A supply means for supplying a single sheet of paper and a folded sheet in a mixed state, an extraction means for sequentially extracting sheets one by one from the supply means, and the extraction means. Transport means for transporting the paper sheets taken out by the above, an auxiliary transport means interposed in the middle of the transport means, and transporting the folded sheets in a different form, Detecting means for detecting a change in the form of the paper sheet at a position immediately before the conveyance by the auxiliary conveyance means and at a position immediately after the conveyance; and receiving a detection signal from the detection means and receiving a detection signal from the single paper sheet and a sheet folded in half. Control means for discriminating between leaves and paper. 3. A supply means for supplying single-leaf paper sheets and two-folded paper sheets in a mixed state, a take-out means for sequentially taking out the paper sheets one by one from the supply means, and this take-out means Transport means for transporting the paper sheets taken out by the above, an auxiliary transport means interposed in the middle of the transport means, and transporting the folded sheets in a different form, Detecting means for detecting a change in the form of the paper sheet at a position immediately before the conveyance by the auxiliary conveyance means and at a position immediately after the conveyance; and receiving a detection signal from the detection means and receiving a detection signal from the single paper sheet and a sheet folded in half. And a control means for discriminating the sheet and controlling the sheet to be conveyed in directions different from each other. 4. A supply means for supplying single-leaf paper sheets and two-folded paper sheets in a mixed state, a take-out means for sequentially taking out the paper sheets one by one from the supply means, and this take-out means Transport means for transporting the paper sheets taken out by the means, provided at a middle portion of the transport means, sandwiching the paper sheets from both sides thereof in a gap between each other, and set at different transport speeds from each other. A first auxiliary transport unit and a second auxiliary transport unit for transporting a folded sheet in a different form, and immediately before transport by the first auxiliary transport unit and the second auxiliary transport unit Detecting means for detecting a change in the form of the sheet at the position and the position immediately after the conveyance, and receiving a detection signal from the detecting means, discriminating between a single sheet of paper and a folded sheet of paper, I will guide you in different directions Conveying device of the sheet, characterized by comprising control means for controlling, the. 5. A supply means for supplying single-leaf paper sheets and two-folded paper sheets in a mixed state, a take-out means for sequentially taking out the paper sheets one by one from the supply means, and this take-out means Transport means for transporting the paper sheets taken out by the means, provided at a middle portion of the transport means, sandwiching the paper sheets from both sides thereof in a gap between each other, and set at different transport speeds from each other. A first auxiliary transport unit and a second auxiliary transport unit for transporting a folded sheet in a different form, and immediately before transport by the first auxiliary transport unit and the second auxiliary transport unit A first detecting means for detecting the form of the sheet at the position, a second detecting means for detecting a change in the form of the sheet at a position immediately after the conveyance, and After receiving the detection signal, -Folded to determine the sheet, conveying apparatus of a sheet, characterized by comprising a control means for controlling to convey guide directions different from each other. 6. A supply means for supplying single-leaf paper sheets and two-folded paper sheets in a mixed state, a take-out means for sequentially taking out the paper sheets one by one from the supply means, and this take-out means. Transport means for transporting the paper sheets taken out by the means, interposed in the middle of the transport means, and sandwiching a part of the paper sheets in a gap between each other from both side surfaces thereof and transporting the paper sheets differently from each other. By setting the speed, a first auxiliary transport unit and a second auxiliary transport unit that change the form and transport the folded sheet at the portion that is not sandwiched, and the first and second auxiliary transport units. First detection means for detecting a change in the form of the paper sheet at a position immediately before the conveyance by the auxiliary conveyance means and at a portion not sandwiched by the first and second auxiliary conveyance means; Immediately after the transfer by the auxiliary transfer means A second detecting means for detecting a change in the form of the sheet at a portion not sandwiched by the second auxiliary transporting means; a detecting means for receiving a detection signal from the first and second detecting means; Control means for distinguishing between the paper sheet and the folded paper sheet and controlling the sheet to be conveyed in directions different from each other. 7. A supply means for supplying single-leaf paper sheets and two-folded paper sheets in a mixed state, a take-out means for sequentially taking out the paper sheets one by one from the supply means, and this take-out means. Transport means for transporting the paper sheets taken out by the means, interposed in the middle of the transport means, and sandwiching a part of the paper sheets in a gap between each other from both side surfaces thereof and transporting the paper sheets differently from each other. By setting the speed, a first auxiliary transport unit and a second auxiliary transport unit that change the form and transport the folded sheet at the portion that is not sandwiched, and the first and second auxiliary transport units. First detection means for detecting a change in the form of the paper sheet at a position immediately before the conveyance by the auxiliary conveyance means and at a portion not sandwiched by the first and second auxiliary conveyance means; Immediately after the transfer by the auxiliary transfer means 1, a second detecting means for detecting a change in the form of the sheet at a portion not sandwiched between the second auxiliary conveying means, and a detecting signal received from the first and second detecting means. Control means for discriminating between single-leaf paper sheets and folded paper sheets according to the degree of change in the form of the leaves, and controlling the sheet to be transported and guided in different directions from each other. Leaf transport device. 8. A supply means for supplying single-leaf paper sheets and two-folded paper sheets in a mixed state, a take-out means for sequentially taking out the paper sheets one by one from the supply means, and this take-out means Transport means for transporting the paper sheets taken out by the means, interposed in the middle of the transport means, and sandwiching a part of the paper sheets in a gap between each other from both side surfaces thereof and transporting the paper sheets differently from each other. By setting the speed, a first auxiliary transport unit and a second auxiliary transport unit that change the form and transport the folded sheet at the portion that is not sandwiched, and the first and second auxiliary transport units. A first method for detecting a change in the form of the sheet at a position immediately before the conveyance by the auxiliary conveyance means and a portion not sandwiched between the first and second auxiliary conveyance means from the auxiliary conveyance means side having a low conveyance speed. Detecting means and first and second
A second part for detecting a change in the form of the sheet at a position immediately after the conveyance by the auxiliary conveyance means and a portion not sandwiched between the first and second auxiliary conveyance means from the auxiliary conveyance means having a low conveyance speed. Detecting means from the first and second detecting means, and discriminating between a single leaf sheet and a folded sheet according to the degree of change in the form of the paper sheet. Control means for controlling the sheet to be conveyed in the direction. 9. A supply means for supplying single-leaf paper sheets and two-folded paper sheets in a mixed state, a take-out means for sequentially taking out the paper sheets one by one from the supply means, and this take-out means Transport means for transporting the paper sheets taken out by the means, interposed in the middle of the transport means, and sandwiching a part of the paper sheets in a gap between each other from both side surfaces thereof and transporting the paper sheets differently from each other. By setting the speed, a first auxiliary transport unit and a second auxiliary transport unit that change the form and transport the folded sheet at the portion that is not sandwiched, and the first and second auxiliary transport units. A pair of first detections for detecting a change in the form of the paper sheet at a position immediately before the conveyance by the auxiliary conveyance means and a portion not sandwiched between the first and second auxiliary conveyance means from both the auxiliary conveyance means sides Means and first and second auxiliary transport means A pair of second detection means for detecting a change in the form of the sheet at a position immediately after the conveyance by the auxiliary conveyance means and a portion not sandwiched between the first and second auxiliary conveyance means from the two auxiliary conveyance means; A detection signal is received from the pair of first and second detection means, and a single sheet and a folded sheet are discriminated based on the degree of change in the form of the sheet, and the sheets are discriminated in different directions. And a control means for controlling the conveyance of the paper sheet.