JP3364469B2 - Paper sheet separation supply method and apparatus - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet sorting system used in, for example, a postal organization, and separates paper sheets such as mail into a bundle into a plurality of sheets and separates them one by one. The present invention relates to a method and an apparatus for separating and feeding paper sheets suitable for being conveyed to a sorting section.

[0002]

2. Description of the Related Art In recent years, a mail classification is provided which has a recognition function of reading a bar code attached to a mail or a character recognition function of reading address information such as a zip code, and automatically sorts and processes the mail from the address information. The device has been put to practical use. In such a paper sheet sorting apparatus for postal items (hereinafter referred to as "paper sheet"), space saving, small number of people work,
Low cost and high speed are required. Among them, in order to realize high speed, as one of them, it is required to eliminate troubles such as double feeding during transportation and to perform transportation and sorting processing operation quickly and accurately.

Generally, in this type of paper sheet sorting apparatus, a plurality of paper sheets to be sorted are put in a bundle in a state of being put up in a bundle, and the sheets are separated one by one in a separating and supplying section, and are sequentially downstream. The structure to send to the side is adopted. Therefore, if the separation and feeding section does not properly and promptly separate the paper sheets, a large amount of paper sheets cannot be processed at high speed,
It will greatly affect the processing capacity. Therefore, in order to quickly separate the paper sheets, the paper sheet feeding position is
A simple paper sheet arrival detection means for detecting the arrival of paper sheets is installed.

[0004]

In order to convey a large amount of paper sheets continuously at a high speed, the system accurately recognizes that the paper sheets have arrived at the separating and feeding belt surface, and successively conveys them properly. It is considered important to pay out. Here, the conventional mechanical paper sheet arrival detection means is
It is installed just before the separation and feeding, and judges the physical contact of the paper sheet with the paper sheet arrival detection means (or line) to determine the weight / thickness / surface roughness of the paper sheet. In some cases, the arrival of paper sheets cannot be detected due to the situation such as the supply attitude, and quick separation and supply cannot be performed. Therefore, it can be said that the conventional paper sheet arrival detection means is not sufficient.

The present invention has been made in view of the above-described problems, and it is possible to accurately detect a paper sheet that has been conveyed to a feeding position and to appropriately and continuously feed it. It is an object to provide a method for separating and supplying leaves.

Another object of the present invention is to provide a paper sheet separating / feeding device capable of accurately detecting a paper sheet conveyed to a feeding position and appropriately and continuously feeding the same. And

[0007]

In the method for separating and feeding paper sheets according to the present invention, a plurality of paper sheets that are set in a bundle and sent in an upright position are separated by a belt surface of a rotating separating and feeding belt.
A portion of the lower end side of the paper sheet sent to the position of the belt surface is abutted below the separating / supplying unit that sucks the sheets one by one under vacuum and feeds the downstream to the rotation side of the separating / supplying belt. An auxiliary contact surface to be brought into contact, an auxiliary vacuum suction means for vacuum-sucking the lower end side portion of the paper sheet to the auxiliary contact surface, and the paper sheet sent to the position of the belt surface. A mechanical paper sheet detection sensor for detecting the arrival of papers is provided, and the negative pressure of the auxiliary suction means is measured. As a result, even if the paper sheet sent toward the belt surface is not detected by the arrival detection sensor, the paper sheet is brought into contact with the auxiliary contact surface and vacuum-sucked by the auxiliary suction means. Then, the negative pressure of the auxiliary suction means becomes equal to or higher than the specified value, and the arrival of the paper sheet is detected from the value of this negative pressure, so that the feeding operation of the paper sheet by the separating and supplying means can be executed.

Further, in the paper sheet separating / supplying apparatus of the present invention, a rotating separation / supply belt and a plurality of paper sheets that are collectively set and sent in an upright position are vacuum-sucked through the belt surface of the separation / supply belt. And a first vacuum suction means for suction-holding on the belt surface, and the paper sheets suction-held on the belt surface are fed downstream one by one with the rotation of the separation supply belt. A separating and feeding means for feeding out, and an auxiliary contacting surface provided below the separating and supplying means for contacting a lower end side portion of the paper sheet sent to the position of the belt surface, Auxiliary separating means having a second vacuum suction means for applying a suction force for vacuum suctioning the lower end portion of the paper sheet to the auxiliary contact surface, and the paper sheet sent to the belt surface. Mechanical paper sheet arrival detection sensor that detects the arrival of paper, It has a configuration in which a negative pressure measuring means for measuring the negative pressure in the serial second vacuum suction means. According to this configuration, even if the paper sheet sent toward the belt surface is not detected by the arrival detection sensor, the paper sheet is brought into contact with the auxiliary contact surface and the second vacuum is applied. If vacuum suction is performed by the suction means, the negative pressure of the second vacuum suction means becomes equal to or greater than the specified value, and arrival of the paper sheet is detected from the value of this negative pressure. The operation can be executed.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the overall structure of a paper sheet sorting system using a paper sheet separating and feeding device according to the present invention, FIG. 2 is a plan view showing the overall structure of a paper sheet sorting system, and FIG. FIG. 2 is a schematic configuration layout view of the system as seen through from the side, as seen through.

(Overall Schematic Structure of Paper Sheet Sorting System) Referring to FIGS. 1 to 3, the paper sheet sorting system is roughly composed of a paper sheet feeding section 1, a reading section 2, a paper sheet sorting section 3,
It is composed of a paper sheet conveying means 4, a transfer cart 5, a storage rack 6, and the like.

In the paper sheet supply unit 1, a plurality of paper sheets 10 to be sorted (see FIGS. 3 and 20) are collected and set in a standing posture in a bundle, and the paper sheets 10 are set. The sheet is conveyed to the sheet feeding position 8 as it is, separated one by one by the sheet separating / supplying device 9 provided at the sheet feeding position 8, and sequentially fed to the downstream side where the reading unit 2 is provided. It has a structure that allows The reading unit 2 reads the destination information of the bar code (or zip code or the like) attached to the paper sheet 10 that has been separated and fed out one by one by the paper sheet separation and supply device 9. , Send the destination information to the computer.

In the present embodiment, the paper sheet sorting section 3 is formed in three stages in the vertical direction. The sheet stacking unit 3 temporarily stores and stacks the sheets 10 sorted by the destination information and sorted in the sheet sorting unit 3.
a are arranged in a line in a horizontal direction.
Mouth) is provided.

The paper sheet conveying means 4 is a paper sheet supply section 1
The paper sheets 10 fed out one by one from the paper sheet separating and supplying device 9 are conveyed to the paper sheet sorting unit 3 through the reading unit 2, and the paper sheet sorting unit 3 sorts and collects them. Part 3
On the front side (upstream side) of entering a, a sorting unit (not shown) for sorting the paper sheets 10 is provided in each of the sorting stacking units 3a arranged in three stages.

The transfer cart 5 receives and stores the paper sheets 10 discharged from the sorting and stacking section 3a of the sheet sorting section 3, and the sorting and stacking section 3a of the sheet sorting section 3 is stored.
Corresponding to the above, the paper sheet relay path 5a is provided by being divided into upper and lower three stages.

Corresponding to the sorting and accumulating section 3a of the paper sheet sorting section 3, the storage shelf 6 has 33 sheets of paper sheet storage paths 6a arranged horizontally in a row, and three sheets are vertically formed. ing.

(Schematic Structure of Paper Sheet Supply Unit 1) FIG. 4 is a perspective view schematically showing the structure of the main part of the paper sheet supply unit 1, and FIG. It is a perspective view which partially expands and shows the peripheral structure of the leaf feeding position 8.
In FIGS. 4 and 5, the paper sheet feeding unit 1 includes a paper sheet 1
A plurality of 0s are bundled into a bundle, and the charging unit 11 is charged in a standing posture.

(Structure of Inserting Section) As shown in FIGS. 6 and 7, the inserting section 11 has a bottom wall 11a for receiving a bottom portion of the inserted sheet 10 and a back surface of the sheet 10. And a back wall 11b for receiving the above-mentioned part. The bottom wall 11a and the back wall 11b are formed in a substantially L-shaped cross-section so as to intersect each other at about 90 degrees, and the back wall 11b and the bottom wall 11a are entirely θ degrees rearward (about 15 degrees). It is in a tumbled state (see FIGS. 3 and 7). 6 is a perspective view schematically showing the structure of the main part of the charging unit 11, and FIG. 7 is a schematic sectional view taken along the line AA of FIG.

The peripheral structure of the input section 11 will be further described. On the back wall 11b side, the paper sheets 10 on the input section 11 are fed horizontally toward the paper sheet feeding position 8 while standing. A paper sheet transfer means 12 capable of performing the above is provided. The back wall 11b includes an upper back plate 13a and an intermediate back plate 13a.
The three plates b and the lower back plate 13c are provided with slits 14a and 14b between the upper back plate 13a and the intermediate back plate 13b and between the intermediate back plate 13b and the lower back plate 13c, respectively. Combined to form one back wall. The widths of the back plates 13a to 13c here are not the same, and the upper back plate 13a, the intermediate back plate 13b, and the lower back plate 13c become smaller in this order. Further, the back plates 13a to 13c are not arranged on the same plane, and as shown in FIG. 7, the intermediate back plate 13b is slightly retracted to the rear side by the dimension t rather than the upper back plate 13a. , Lower back plate 1 than intermediate back plate 13b
3c is slightly retracted to the rear side by the dimension t, and is arranged in a stepwise manner such that it is sequentially retracted as it approaches the bottom wall 11a. As described above, the three back plates 13a having different widths forming the back wall 11b
By sequentially shifting the position of 13c to the rear side, the paper sheet 10 being aligned by being vibrated is flipped up, and when the paper sheet 10 is next dropped, the corners (bottom surface and back surface) of the paper sheet 10 are dropped. The back plate 13 where the intersecting portions) form the slits 14a and 14b.
It is prevented that the alignment state is disturbed by being caught on the upper surface of b and the upper surface of the back plate 13c. That is, the slit 14
back plates 13a to 13c arranged by providing a and 14b
When the sheets are arranged in the same plane, a protruding step is likely to be formed between the back plates 13a, and when the paper sheet 10 falls along the back wall 11b while the step is formed, the protruding step is generated. The corners of the paper sheet 10 may be caught by the existing step and the rotation may be applied, which may disturb the orientation. However, as in the present embodiment, the back plate 13 is sequentially arranged as it goes downward.
When the a to 13c are arranged so as to be retracted, the protruding step is not created. Therefore, the back plate 13a
The paper sheets 10 that have fallen along the back boards 13b, 13
It is possible to smoothly fall to the bottom wall 11a without being caught on the upper surface of c, and to perform reliable alignment without disturbing alignment during alignment. Further, even if the paper sheet 10 is returned while rotating clockwise in FIG. 7, the back plate 13b,
The upper surfaces of 13c are back plates 13a and 13b immediately above, respectively.
Since it is in a position retracted more than that, it is possible to prevent the corners of the paper sheets 10 from being caught, and similarly, it is possible to perform a reliable alignment without disturbing the alignment of the paper sheets in the middle of alignment again. become.

On the other hand, on the side of the bottom wall 11a, the paper sheet 10 placed on the feeding section 11 is vibrated, and the two sides (the lower side and the back side) of the paper sheet 10 are respectively attached to the bottom wall. Paper sheet vibrating means 15 (see FIG. 4, FIG. 5, FIG. 19) for bringing the paper sheets 10 into contact with 11a and the back wall 11b and aligning them.
A second paper sheet transfer means 16 and the like for sending the upper paper sheet 10 in the upright state to the paper sheet delivery position 8 together with the paper sheet transfer means 12 in the horizontal direction are provided.

(Structure of Paper Sheet Transfer Means) The paper sheet transfer means 12 has an overall structure as shown in FIG.
Through the slits 14a, 14b of the back wall 11b, the back wall 1
Top / bottom 2 projecting from 1b forward at approximately right angles
Partition arm unit 1 having book arms 18a and 18b
An endless chain 21 in which 9 are sequentially connected endlessly with a chain 20 and arranged at substantially equal intervals,
Drive means 22 for rotating the endless chain 21
And a cam portion 23 for controlling the forward / backward movement of the partition arm portion 19 when the endless chain 21 rotates. The drive means 22 has a motor 42 as a drive source. Also, the partition arm portion 19
Is used to divide the paper sheets 10 to be collectively put into the feeding unit 11 into small portions on the feeding unit 11, hold the subdivided paper sheets 10 in an upright state by supporting them from both sides, and then feed out the paper sheets as they are. The second paper sheet transfer means 16 described later cooperates with the transfer to the position 8 to transfer the paper sheet. When the partition arm portion 19 is arranged on the upper half side of the endless chain 21 due to the rotation of the endless chain 21, the arms 18a and 18b of each partition arm portion 19 have slits 14a.
a, 14b is moved toward the paper sheet feeding position 8 while protruding from the back wall 11b to the front at a substantially right angle, and when it reaches immediately before the paper sheet feeding position 8 (end 12A), The endless chain 21 is retracted rearward from the wall 11b and then folded back to the lower half side of the endless chain 21 toward the end 12B on the side opposite to the sheet feeding position 8 and the end 12B on the opposite side. Then, it is folded back to the upper side. Further, immediately before the end portion 12B, the partition arm portion 1
The arms 18a, 18b of 9 are again guided by the cam portion 23 through the slits 14a, 14b to be projected forward from the back wall 11b, and then moved toward the sheet feeding position 8 on the upper half side of the endless chain 21. It is structured to be guided.

(Structure of Cam Section) The cam section 23 is shown in FIG.
As shown in detail in FIG. 11, the first cam 23A arranged along the traveling path of the partition arm portion 19 guided on the upper half side of the endless chain 21, and the paper sheets of the traveling belt 21. End 12B on the side opposite to the feeding position 8
And a second cam 23B arranged along the traveling path of the partition arm portion 19. In addition, the second cam 23
B has an inclined surface 23b that is inclined so as to gradually project toward the front side as the folding back to the upper side is started, and is formed in a substantially U shape. It is made so that the amount of protrusion is the maximum when finished. On the other hand, the first cam 23A is
It is formed as one pillar-shaped rail material, and the second
It is arranged so as to be continuously connected to the end portion of the cam 23B (the maximum protruding portion of the inclined surface 23b), and the maximum protruding amount is maintained so that the sheet feeding position 8
It extends straight toward the (end 12A) and toward the paper sheet feeding position 8. The position of the first cam 23A on the side of the sheet feeding position 8 is the arm 18 of the partition arm portion 19 that has been moved to the sheet feeding position 8 most.
a, 18b until just before the position in which only one sheet 10 is arranged between them a and 18b comes into contact with the belt contact surface 67a of the separation and supply belt 67 in the sheet separation and supply device 9.
The rollers 40 of the partition arm portion 19 are arranged so as to be in contact with each other. A pair of front and rear guide bars 24a and 24b are arranged along the first cam portion 23A near the first cam portion 23A (see FIGS. 10 and 11). A pair of front and rear guide bars 24a, 24
b are held parallel to each other via a spacer 25 fixed to the apparatus main body side, and head toward the paper-sheet feeding position 8 in a state of being folded back from the lower side and being in contact with the first cam 23A. The upper half of the endless chain 21 is supported from below.

(Structure of Partition Arm Unit) Partition Arm Unit 1
As shown in detail in FIGS. 12 to 17, reference numeral 9 designates a mounting plate 26 fixedly mounted on the pair of front and rear chains 20 and fixed to front and rear ends of the mounting plate 26, respectively. Brackets 27a, 27
a pair of guide bars 28a, 28b and a center bar 29 whose front and rear ends are fixed to the guide bar 2
8a, 28b and a slider 30 attached to the center bar 29 so as to be slidable in the front-rear direction, an arm holder 31 fixedly attached to the slider 30, and an arm holder 31 fixedly attached to the arm holder 31. It is composed of the pair of arms 18a and 18b. Further, as shown in the exploded perspective view of FIG. 15, the slider 30 has through holes 30a and 30b penetrating forward and backward at left and right positions and also penetrating forward and backward at a central position. It has a through hole 30c. A cylindrical slide bush 32 is inserted into the through holes 30a and 30b.
2 is fixed to the slider 30 by a snap ring 33 attached to a slide bush 32 before and after the slider 30. The guide bars 28a and 28b pass through the slide bush 32 and penetrate the slider 30, and both ends are fixedly attached to the brackets 27a and 27b with screws 34, and hold the slider 30 slidably in the front-rear direction. When the slider 30 is mounted on the guide bars 28a and 28b, a ring-shaped spacer 35 for restricting the sliding amount of the slider 30 is mounted between the slider 30 and the bracket 27b. The center bar 29 has the through hole 3 of the slider 30.
It is arranged in parallel with the guide bars 28a and 28b penetrating 0c, and both ends penetrate the brackets 27a and 27b, and are positioned and fixed by the E ring 36 outside the brackets 27a and 27b. Further, between the bracket 27a and the slider 30, a coil spring 37 is mounted on the center bar 29 in a compressed state, and the slider 30 is always mounted on the bracket 27b.
It is in a state of being pressed to the side (see FIGS. 12 and 13). The arm holder 31 is formed in a substantially L shape, and with the standing piece 31a facing the front, a horizontal piece 31b bent from the lower end side of the standing piece 31a toward the rear at a substantially right angle is formed. It is attached by fixing it to the upper surface of the slider 30 with a screw 38. The upright piece 31a includes a pair of arms 1 separated from each other vertically.
8a and 18b are attached in a state in which they project toward the front at a substantially right angle. On the other hand, on the rear end side of the horizontal piece 31b, a roller 40 is attached which is horizontally rotatable about a pivot 39 extending upward from the horizontal piece 31b at a right angle. The roller 40 corresponds to the first cam 23A and the second cam 23B and can come into contact with the first cam 23A and the second cam 23B.

The driving means 22 is divided into the left and right ends of the charging section 11 and is rotatably arranged on the rotary drums 41A, 4A.
1B, and gears (not shown) to be engaged with the chain 20 are integrally formed on the outer circumferences of the respective rotary drums 41A and 41B. When the rotary drums 41A and 41B rotate, the gears and the chain 20 are sequentially meshed with each other, and the endless chain 21 travels endlessly integrally with the partition arm portion 19 in the rotation direction of the rotary drums 41A and 41B. Of the rotary drums 41A and 41B, the rotary drum 41A is a drive drum, and the rotary drum 41A
B is a driven drum, and the rotary drum 41A is rotated by receiving the rotational driving force from the motor 42. That is,
When the motor 42 is rotated, the rotary drum 41A is rotated, and the rotation of the rotary drum 41A is changed by the chain 20.
In this structure, the rotary drum 41B is driven to rotate, and thereby the endless chain 21 is rotated endlessly.

In the construction of the above-mentioned paper sheet transfer means 12,
The operation of the partition arm portion 19 will be described next. When the partition arm portion 19 corresponds to the first cam 23A,
0 is in contact with the first cam 23A and resists the repulsive force of the coil spring 37.
As shown in a part of 6, the arms 18a and 18b are pushed toward the bracket 27a side and largely protrude forward from the back wall 11B. And this arm 18
Slit 1 with a and 18b still protruding greatly
The inside of 4a, 14b is moved from the end 12B side toward the end 12A (paper sheet feeding position 8) with the rotation of the endless chain 21. At this time, it is divided into a plurality of partition arm portions 19 and 19 and is supported by the arms 18a and 18b and the arms 18a and 18b from both sides to form a plurality of bundles on the insertion portion 11. The paper sheets 10 that have been put in collectively are pushed by the arms 18a and 18b, accompanied by the transfer by the second paper sheet transfer means 16 described later and the vibration of the paper sheet vibrating means 15, and the paper sheet delivery position. Moved to 8. Also, the partition arm portion 19
When the roller 40 is moved to the paper sheet feeding position 8 and the roller 40 is disengaged from the first cam 23A, the slider 30 is guided by the guide bars 28a, 28b by the repulsive force of the coil spring 37, and the sliders 30a, 30b, 30a, and 30b in FIG. As shown in a part of FIG. 16, it instantaneously moves to the bracket 27b side. That is, by this movement, the arms 18a and 18b are retracted to the position where the tip ends are on the rear side of the back wall 11b. 16
The peripheral structure of this paper sheet feeding position 8 is shown, and the arms 18a and 18b of the partition arm portion 19 which is not disengaged from the first cam 23A project forward and the arm of the partition arm portion 19 which is disengaged from the first cam 23A. 18a, 18b is the back wall 1
1B shows a state in which the position is retracted to the rear side.

Then, at the paper feeding position 8, the arm 1
The partition arm portion 19 that has been retracted to a position where the back walls 11b are located at 8a and 18b is moved to the other end 12B by the endless chain 21 while the arms 18a and 18b remain retracted, and the other end Immediately before 12B, the roller 40 is brought into contact with the minimum height position of the inclined surface 23b of the second cam 23B. Further, when the roller 40 is moved together with the endless chain 21 while being in contact with the inclined surface 23b, the height of the contacted inclined surface 23b gradually increases, and due to the cam action of the inclined surface 23b. The slider 30 is gradually moved toward the bracket 27a side while compressing the coil spring 37, whereby the arm 18
The a and 18b again largely project to the front side of the back wall 11b. FIG. 17 shows the roller 4 at the other end 12B in this way.
0 is in contact with the inclined surface 23b of the second cam 23B, and the arms 18a and 18b are projected.
This protrusion is maximized at a position adjacent to the first cam 23A, and when reaching the end of the second cam 23B, the first cam 2
3A, the sheet is fed toward the sheet feeding position 8 while being again in contact with the first cam 23A. In addition,
Immediately before moving from the second cam 23B to the first cam 23A, the arms 18a and 18b again correspond to the slits 14a and 14b, and are moved to the sheet feeding position 8 through the slits 14a and 14b.

Therefore, in the structure of the present embodiment, when the roller 40 moves while being in contact with the first cam 23A, the arms 18a and 18b project toward the paper sheet feeding position 8 with the arms 18a and 18b protruding from the back wall 11b. And the partition arm portion 19 approaches the sheet feeding position 8 and the roller 4 moves.
When 0 is disengaged from the first cam 23a, the arms 18a, 18
It is retracted together with the slider 30 to a position where b is the rear side of the back wall 11b. Further, the arms 18a and 18b are moved toward the other end 12B in the retracted state, and the other end 1
When approaching 2B, the roller 40 comes into contact with the second cam 23b. If it is moved as it is, the slider 30 will move to the arm 1.
The cycle of being carried to the first cam 23 again while being projected forward together with 8a and 18b is repeated. Then, by this operation, the paper sheets 10 placed on the input unit 11 can be sequentially moved toward the paper sheet feeding position 8.

In the structure of the present embodiment, the position of the end of the first cam 23A on the sheet feeding position 8 side is the last position where the arms 18a and 18b carry toward the sheet feeding position 8. The paper sheet 10 is set so that it can support the paper sheet feeding position 8 until just before it can lightly touch the separating and feeding belt 67 of the paper sheet separating and feeding device 9, which will be described later. It has been described above that the arms 18a and 18b are instantaneously retracted when the paper sheet 10 is lightly touched by the paper sheet separating / supplying device 9.
With such a structure, the last sheet is transferred at the sheet feeding position 8 until the belt contact surface 67a of the separating and feeding belt 67 of the sheet separating and feeding device 9 is lightly touched. It will be possible to deliver it without fail. By the way, in the paper sheet transfer means in the conventional device,
When the arm retracted, it was impossible to retract immediately before the sheet feeding position. In addition, by the mechanism that also selects the retreat operation, the retreating arm accelerates or decelerates the traveling speed to the paper sheet feeding position with respect to the arm that is being transferred later, and the arm interval is also narrowed or narrowed. It was a cause of double feed. Also, the arm itself cannot momentarily retract, and the arm gradually and slowly retracts before the arm reaches the sheet feeding position. In other words, since the arm of the paper sheet transfer means of the conventional device cannot reach the position immediately before the paper sheet feeding position in a protruding form, the paper sheet that falls backward and falls down to the separating and feeding surface (belt contact surface). In order to bring them into contact with each other, it is necessary for the worker to directly support the paper sheets, which poses a problem in safety and realization of one-person work. On the other hand, in the structure of the present embodiment, the belt contact surface 67a of the paper sheet separating / feeding device 9 is
Since the arms 18a and 18b are protruded until just before the last one sheet of paper 10 comes into contact with the sheet, before the sheet of paper 10 comes into contact with the belt contact surface 67a, It is possible to eliminate a situation in which 10 is tilted backward to cause poor transfer. As a result, it is possible to eliminate the arrangement of a dedicated worker or the like, which is required in the conventional apparatus, for handling the problem caused by the subsequent fall, and it is possible to reduce the number of personnel and the cost. Further, in the structure of the present embodiment, the position of the first cam 23A on the sheet feeding position 8 side,
That is, the roller 40 of the partition arm portion 19 is connected to the first cam 2
The position where the arms 18a and 18b are allowed to move backward from the contact of the 3A has a structure that can be arbitrarily adjusted.

(Structure of Second Paper Sheet Transfer Means) The second paper sheet transfer means 16 is parallel to the transfer belt 21 on the back wall 11b side in the left-right direction as shown in the detailed structure of FIG. A part of the transfer belt means 43A, 43B extends between the pair of front and rear transfer belt means 43A, 43B, and the pair of front and rear transfer belt means 43A, 43B and the sheet feeding position 8.
And a pair of front and rear auxiliary transfer belt means 44A and 44B which overlap with each other and extend in the left-right direction. The pair of front and rear auxiliary transfer belt means 44A, 44B are disposed so as to be located between the transfer belt means 43A, 43B.

The transfer belt means 43A and 43B include a drive pulley 46a, a driven pulley 46b, and the drive pulley 4a.
6 a and the driven pulley 46 b, and an endless belt 47 that is stretched around the driven pulley 46 b. The surface of the endless belt 47 has a tooth-like shape, and the surface is provided so as to project upward from the opening 11c (see FIG. 6) of the bottom wall 11a of the insertion portion 11. Then, since the surface of the endless belt 47 directly receives the paper sheet 10 placed on the input section 11, when the endless belt 47 rotates, the paper sheet 10 is fed toward the paper sheet feeding position 8. To be Here, since the drive pulley 46a rotates the driving force of the motor 42 that drives the paper sheet transporting means 12 via a power transmission belt (not shown), the second paper sheet transporting means 16 operates the paper sheets. It moves at a speed perfectly synchronized with the transfer means 12. The endless belt 47 and the driven pulley 46b also rotate following the rotation of the drive pulley 46a.

The auxiliary transfer belt means 44A and 44B are composed of a drive pulley 49a and a driven pulley 49b, and an endless belt 50 which is stretched between the drive pulley 49a and the driven pulley 49b. The surface of the endless belt 50 has the transfer belt means 43A, 43B so that the frictional force between the endless belt 50 and the paper sheet 10 can be reduced.
Unlike the surface shape of the endless belt 47 used in, the surface is formed smoothly. The upper surface of the endless belt 50 has the opening 1 of the bottom wall 11 a of the feeding section 11.
It is provided so as to project upward from 1d (see FIG. 6),
Since the paper sheet 10 placed on the input unit 11 is directly received by the endless belt 50, when the endless belt 50 rotates, the paper sheet 10 is sent toward the paper sheet feeding position 8. Here, the rotation direction of the endless belt 50 can also be fed in a direction away from the sheet feeding position 8 opposite to the normal feeding. The transfer speed of the endless belt 50 is the same as that of the paper sheet transfer means 12 when the paper sheet 10 is moving to the paper sheet delivery position 8, and the paper sheet 10 is separated from the paper sheet delivery position 8. When moving forward, the speed is set to a high speed irrelevant to the speed of the sheet feeding means 12.

Auxiliary transfer belt means 44A, 44B
The first reason for allowing the paper sheets to rotate in two directions is the paper sheet transfer when the paper sheets 10 are fed one after another in the area of the paper sheet feeding position 8 and become over-pressed. By stopping the transfer by the means 12 and the transfer belt means 43A and 43B and reversing the endless belt 50 immediately before separation, the paper sheet 10 is once returned from the paper sheet feeding position, and the paper sheet at the paper sheet feeding position 8 is returned. This is because the excessively pushed state of the class 10 is alleviated, and only one sheet 10 is surely adsorbed to the separation / supply belt 67 so that it can be easily fed to the downstream side. The second reason is that although the paper sheet 10 thrown in the rearwardly inclined posture by the throwing section 11 has not reached the position where it is sufficiently adsorbed by the belt contact surface 67a and fed out, the arrival detection means 106. The arrival detection sensor 93 detects the sheet 92 by pushing the contactor 92 connected to
When it is determined that the paper sheet 10 has arrived, the transfer speed should normally be fast-forward, but the speed drops to the speed synchronized with the feeding operation in the separating and feeding unit 63, and the dead time in which the paper sheet 10 cannot be quickly fed out. This is to reduce the dead time by correcting the paper sheet 10 that has been transported to the paper sheet feeding position 8 in the backward tilting posture to the forward tilting. The surface of the endless belt 50 is made smooth so as to reduce the frictional force with the paper sheets. The paper sheet 10 is excessively pushed at the paper sheet feeding position 8, or the paper sheet 10 that is thrown in the backward tilting posture by the feeding unit 11 is transferred to the paper sheet feeding position 8 in the same posture. This is because, in this case, it is necessary to reverse only the endless belt 50 in a state in which the paper sheet transfer means 12 and the second paper sheet transfer means 16 are stopped. When the frictional force on the belt surface is large or it has a tooth shape, the endless belt 50 is in a state where the paper sheet transfer means 12 and the second transfer means transfer means 16 are stopped.
When the sheet is reversed at a high speed, the paper sheet 10 retracting from the paper sheet feeding position 8 is sandwiched between the paper sheet transfer means 12 and the second paper sheet transfer means 16 and the endless belt 50. Then, only the lower surface of the paper sheet 10 loses its place of departure, and an event of peeling from the belt surface always occurs. At the time of this peeling, the lower surface of the paper sheet 10 may be damaged, but if the surface is smoothed to reduce friction, such damage will not occur.

(Structure of Paper Sheet Vibrating Means) The paper sheet vibrating means 15 has an endless belt 47 between the transfer belt means 43A and 43B as shown in the detailed structure of FIG.
Slender up-and-down movable member 52 extending in the left-right direction in parallel with
a and 52b, and a vibration generating means 53 for alternately moving the vertically movable members 52a and 52b up and down.
The vertically movable members 52a and 52b can be largely projected or retracted onto the bottom wall 11a through an opening 11e (see FIG. 6) provided in the bottom wall 11a.

The vibration generating means 53 has an eccentric cam 54 on its peripheral surface.
A rotary shaft 54 integrally provided with a and 54b, a drive means 55 for rotating the rotary shaft 54, and an eccentric cam 54a,
Cam rings 56a, 56b as link pieces for transmitting the cam action of 54b to the vertically movable members 52a, 52b.
And the eccentric cam 54a.
The cam ring 56b is rotatably attached to the eccentric cam 54b. In the present embodiment, the eccentric cam 54a and the eccentric cam 54b are arranged so as to be offset from each other by 180 degrees in the rotational direction. In addition, the cam rings 56a and 56b are provided on the upper and lower movable members 52.
When the cam rings 56a and 56b move up and down by the eccentric cams 54a and 54b by being connected to the centers of the a and 52b via the bracket 56c and the pivot 56d, the eccentric cams 54a and 54b move up and down to interlock with the cam rings 56a and 56b. The vertically movable members 52a and 52b are also vertically movable. Further, pulling means 58 having a coil spring 57 that keeps the vertically movable members 52a and 52b constantly pulled downward is provided on both left and right sides of the vertically movable members 52a and 52b.

The driving means 55 includes a motor 59, a pulley 60 that is integrally rotatable with an output shaft 59a of the motor 59, a pulley 61 that is integrally rotatable with the rotating shaft 54, and a pulley 60. And a power transmission belt 62 stretched over the pulley 61. The rotation of the motor 59 is transmitted to the output shaft 59a, the pulley 60, the power transmission belt 62, and the pulley 61, and the pulley 6
The structure is such that the rotary shaft 54 can be rotated integrally with 1.

The paper sheet vibrating means 15 configured as described above
Then, when the rotating shaft 54 is rotated by the motor 59, the eccentric cams 54a and 54b push up one of the up and down movable members 52a and 52b via the cam rings 56a and 56b and pull down the other, such that the up and down movable members 52a and 52b are pulled down.
Alternately move b up and down. That is, one vertically movable member 52a (or 52b) passes through the opening 11e and the bottom wall 1
If it projects from 1a, the other vertically movable member 52b (or 52a) moves so as to retract from the bottom wall 11a. In addition, the entire insertion portion 11 is in a state of being inverted to the rear side by about 15 degrees, and since the weight of the paper sheet 10 is divided into the back direction and the bottom direction, the paper sheet 10 can move up and down. When pushed up from below by the plate 52a or 52b, vibration is applied by causing the sheet 10 to rotate about a corner portion where the bottom surface and the back surface of the paper sheet 10 intersect as a fulcrum. Further, since the two vertically movable members 52a and 52b are provided apart from each other in the front and rear, the positions at which the bottom surface of the paper sheet 10 is hit are different, and the vertically movable member 52b on the front side is projected to vibrate the paper sheet 10. When the upper and lower movable members 52a on the rear side are projected and the paper sheet 10 is vibrated, a different amplitude can be given, and at the same time, a slight rotating force can be given, resulting in a short time. Efficient and proper alignment (positioning) in time
It can be performed.

(Structure of Paper Sheet Separation / Supply Device) Next, the paper sheets 10 sent to the paper sheet feeding position 8 are separated one by one and fed toward the paper sheet conveying means 4. The structure of the paper sheet separating / supplying device 9 will be described. The detailed structure of the paper sheet separating and supplying apparatus 9 is shown in FIGS. 5 and 20 to 23. 5A and 5B are perspective views showing the peripheral structure of the paper sheet separating / supplying device 9 at the paper sheet feeding position 8 of the paper sheet supplying unit 1, and FIGS. 20A and 20B show the paper sheet separating operation. FIG. 21 is a diagram schematically showing the peripheral structure and operation of the feeding device 9, FIG. 21 is an overall perspective view of the paper sheet separating and feeding device 9, FIG. 22 is a front view of the paper sheet separating and feeding device 9, and FIG. It is a top view of the class separation supply apparatus 9. In FIGS. 5 and 20 to 23, the paper sheet separating and supplying device 9 is moved to the paper sheet feeding position 8 in an upright position by the paper sheet transfer means 12 and the second paper sheet transfer means 16. A separation supply unit 63 capable of vacuum-sucking the received paper sheet 10 and adsorbing only one sheet, and transporting this substantially vertically toward the paper sheet conveying unit 4 on the downstream side, and the separation thereof. A separation assisting unit 64 for facilitating the separation of the paper sheets 10 one by one in the supply unit 63, and a paper sheet for detecting the presence or absence of the paper sheet 10 sent to the paper sheet feeding position 8. It is composed of a class detecting means 106 (see FIG. 28), a paper sheet excessive pressing detecting means 105 (see FIG. 28), and the like.

(Structure of Separation and Supply Section) The separation and supply section 63 is
An endless separation / supply belt 67 stretched around the outsides of the three guide rollers 66a, 66b, 66c.
A vacuum suction means 68 for vacuuming and holding the paper sheet 10 conveyed to the separation supply belt 67 by the separation supply belt 67, and the paper sheet 10 sent to the separation supply section 63. Paper sheets that were supplied with the size and posture of the
It is composed of three sensors 69a, 69b, 69c and the like for detecting the existence of 0 or a paper sheet having a posture defect due to alignment and sending output information to the posture defect detection means 115 (see FIG. 28). .

Three guide rollers 66a, 66b, 66
Among c, the two guide rollers 66a and 66b are vertically arranged along the direction in which the paper sheet 10 is fed, and the remaining one guide roller 66c is arranged on the rear side. . Therefore, a portion 67a of the separation / supply belt 67 stretched by these three guide rollers 66a, 66b, 66c, facing the sheet feeding position 8 (hereinafter, this portion will be referred to as "belt contact surface 67a").
Is a plane (vertical surface) so that it runs straight up and down. The guide rollers 66a and 66b are driven rollers rotatably attached to the pivots 70a and 70b, and the guide roller 66c is a drive roller integrally rotatably attached to a drive shaft 70c rotated by a motor 71. When the drive shaft 70c is rotated together with the guide roller 66c by the motor 71, the separation supply belt 67 is rotated together with the guide roller 66c along with the rotation of the guide rollers 66a and 66b. The rotation direction is the counterclockwise direction in FIGS. 5 and 20 to 23.

Further, the drive shaft 70c is connected to the guide roller 6
The movable holding plate 72b is mounted on a movable holding plate 72b different from the fixed holding plate 72a to which the pivots 70a, 70b supporting 6a, 66b are mounted.
Guide roller 66 together with motor 71 and drive shaft 70c.
It is possible to move in the direction of arrow S in FIG. 22 (inside the separation and supply belt 67) approaching a and 66b and in the direction of arrow L in FIG. Then, when the guide rollers 66a, 66b, 66 are moved in the away direction which is the arrow L direction.
The separation / supply belt 67 stretched around the outside of c can be in a tightly tensioned state. On the contrary, when the separation / supply belt 67 is moved in the direction of the arrow S, the tension of the separation / supply belt 67 can be loosened. it can. In addition, the movable holding plate 72b
The position of the lock means 73 has the lock lever 73a.
It has a structure that can be locked so that it can be released. Therefore, the separation and supply unit 63 of the present embodiment
In this structure, when the lock by the locking means 73 is loosened and the guide roller 66c is moved to the inside of the separation supply belt 67 together with the movable holding plate 72b, the tension of the separation supply belt 67 is loosened, and the separation supply belt 67 can be easily replaced. Can be done. Further, since the guide roller 66c can be returned to the original state and locked together with the movable holding plate 72b after the replacement, the replacement work of the separation supply belt 67 and the like can be easily performed.

Incidentally, in the conventional separation / supply belt, the outer peripheral surface of the belt needs to be uneven in order to perform the reliable separation and feeding. Therefore, when a method of providing a tension roller on the outside of the belt and tensioning the belt toward the inside is used, the tension roller may be damaged because the outer peripheral surface of the belt is uneven. Further, an automatic tensioning mechanism using a spring has been constructed by making the tension roller movable, but there has been a problem that the spring itself is continuously loaded and the spring is damaged. Further, in the conventional belt replacement method, since the belt tension depends on the feeling of the operator after the replacement, there are problems that the values are not uniform and a special tool is required. However, in the structure of the present embodiment, the locking by the locking means 73 is loosened, and the movable holding plate 7
When the guide roller 66c is moved to the inside of the separation / supply belt 67 together with 2b, the tension of the separation / supply belt 67 is loosened, and the separation / supply belt 67 can be easily replaced. Further, since the guide roller 66c can be returned to the original state and locked together with the movable holding plate 72b after the replacement, the replacement work of the separation supply belt 67 and the like can be easily performed.

In the structure of this embodiment, the paper sheet 1
The guide rollers 66a and 66b forming the belt contact surface 67b facing the direction in which 0 is sent have a fixed structure after the position adjustment described later is performed together with the fixed holding plate 72. That is, the guide rollers 66a and 66b
Has a structure in which it does not move when the belt is replaced, so that the position where the belt contact surface 67a is arranged does not move even if the belt is replaced. If the position of the belt contact surface 67a at the paper sheet delivery position 8 shifts, the positional relationship between the arms 18a and 18b of the paper sheet transfer means 12 and the belt contact surface 67ba also needs to be adjusted again. In some cases, the work becomes complicated. However, since the structure of the present embodiment does not move when the belt is replaced, it can be secured in the same position and in the same state. Further, since the guide roller 66c is moved integrally with the motor 71, the drive shaft 70c, and the movable holding plate 52b, the motor 7 can be moved even if the guide roller 66c is moved.
1, the positional relationship between the drive shaft 70c is always secured, and there is no need to perform an operation (including reassembly) of the positional relationship between the motor 71 and the drive shaft 70c after replacement.

Furthermore, the separating and feeding belt 67 here is
The belt contact surface 67a is arranged at a right angle to the horizontal plane (bottom wall 11a) or slightly inclined (θ1) toward the insertion portion 11 side. The angle of the belt contact surface 67a is adjusted by rotating the fixed holding plate 72a, which holds the guide rollers 66a and 66b rotatably, clockwise or counterclockwise in FIG. 22, with respect to the bottom wall 11a. The angle can be adjusted arbitrarily. This angle adjustment is normally performed only once during manufacturing and assembly, and is fixed thereafter. In the structure of this embodiment, the belt contact surface 67b is perpendicular to the bottom wall 11a or the insertion portion 11b.
The reason for leaning forward to the side is that the weight (self-weight) of the succeeding paper sheet 10 that is sent following the preceding paper sheet 10 that is in contact with the belt contact surface 67a of the separation supply belt 67. Is added to the preceding paper sheet 10 to prevent the contact pressure between the preceding paper sheet 10 and the subsequent paper sheet 10 from occurring. That is, the preceding paper sheet 10 is attached to the belt contact surface 67a.
When held in a vertical (right angle) or forward tilted state, the weight of the succeeding paper sheet 10 is not added to the preceding paper sheet 10. Therefore, in the structure of the separating and supplying unit 63 of the present embodiment, the preceding paper sheet 10 is followed by the following paper sheet 1
Since the weight of 0 is added and the external force acting as a large contact pressure between the preceding paper sheet 10 and the following paper sheet 10 is eliminated, the preceding paper sheet 10 is separated and supplied. 67 allows smooth feeding. Further, it is possible to prevent the succeeding paper sheets 10 from being unaligned due to being dragged by the preceding paper sheets 10, and
When the sheet 10 is continuously fed, it is possible to avoid the sheet 10 from being fed in an unstable posture, and the sheet 10 can be smoothly fed without any trouble. The separation / supply belt 67 has a pair of front and rear suction windows 7 for vacuum suctioning the paper sheet 10.
Two paper sheet suction-holding portions 67b having the number 4 are provided by displacing by 180 degrees, and the sheets other than the suction window 74 are not breathable.

The vacuum suction means 68 of the separating / supplying portion 63 is located inside the separating / supplying belt 67 and has a belt contact surface 67.
The suction duct 75 is provided on the rear side of the a, and the suction duct 75 is connected to the vacuum pump 78. In addition, the suction duct 75 is the separation supply belt 6
7 is disposed at a position corresponding to the suction window 74 of the paper sheet suction holding portion 67b, and when the separation supply belt 67 is rotated and the suction window 74 does not reach the front of the suction duct 75, the suction port is separated. It is placed in a state of being blocked by the supply belt 67, and is opened when the suction window 74 reaches the front, and the suction duct 7 receives the suction force from the vacuum pump 78.
5. Air is sucked into the sheet 5, and at this time, the paper sheet suction holding unit 67
Paper sheet 10 that has been sent to a position adjacent to b,
The paper sheet suction-holding portion 67b is sucked in a state of being in close contact with the paper-sheet suction-holding portion 67b, and the suction port is closed again.
That is, the structure is such that the paper sheet 10 is vertically transferred to the paper sheet conveying means 4. The suction duct 75 is slenderly extended in the traveling direction of the separation / supply belt 67, and is sucked by the suction window 74 and moved upward together with the separation / supply belt 67. Reference numeral 10 is the transport belts 95a, 95 of the paper sheet transport means 4.
It is set so that it can be moved until it is sandwiched between b. Further, the separation / supply belt 67 does not always rotate, but normally, the paper sheet suction holding unit 67.
b is waiting at the origin position off the front surface of the suction duct 75, the front surface of the suction port of the suction duct 75 is blocked by the separation supply belt 67, and the paper sheet 10 is sent to the paper sheet feeding position 8. When it is detected by the sensor 93, the motor 71 is rotated, the separation supply belt 67 starts rotating, and when the separation supply belt 67 rotates 180 degrees and reaches the origin position, the rotation of the motor 71 is restarted. Then, the separation supply belt 67 also stops. Then, while the separation / supply belt 67 moves 180 degrees, the intake window 74 passes once in front of the intake duct 75, and the paper sheet 10 is delivered once. That is, one sheet of paper 10 is paid out each time it moves 180 degrees. In the present embodiment, the paper sheet suction holding unit 67b may be provided on the separating / supplying belt 67 one by one every 180 degrees, but in the case of one sheet, one sheet is provided every 360 degrees. Depending on the size of the separation / supply belt 67, three or more may be provided.

The three sensors 69a, 69b, 69c for the attitude defect detecting means 115 are reflection type sensors,
As shown in the schematic view of FIG. 27, the paper sheet A1 that is adsorbed by the separation / supply belt 67 and can be used in this paper sheet sorting apparatus.
Within the transport area 120 in which 0s are regularly delivered, they are arranged in a portion of substantially the maximum width, which is scattered along the transport direction. In the attitude defect detecting means 115 using the sensors 69a to 69c, when the three sensors 69a to 69c detect the same position at the same time as the paper sheet A10 shown by the solid line in FIG. Judge that it has become. On the other hand, like the paper sheet A10 shown by the one-dot chain line or the paper sheet A10 shown by the two-dot chain line, it falls or tilts and only one sensor 69a among the three sensors 69a to 69c (one point In the case of the paper sheet A10 indicated by the chain line) or when only two sensors 69a and 69b (in the case of the paper sheet A10 indicated by the two-dot chain line) are detected,
It is determined that the paper sheet A10 has been fed out in a poor posture, the posture failure detection means 115 sends output information to the system control unit 100 (FIG. 28) described later, and the system control unit 100 issues a warning or the like. At the same time, the device is stopped to prompt the operator to perform the process. As a result, it is possible to prevent the paper sheet 10 from being fed out of the separating / supplying unit 63 in a posture-improper state.

The separation assisting section 64 is provided below the separating and supplying section 63, and serves as an auxiliary contact surface which is opened toward the direction in which the sheet transporting means 12 conveys the sheet. It has a housing 81 provided with an auxiliary suction window 80 (hereinafter, this portion is referred to as "auxiliary contact surface 80"), and an intake port of a suction duct 84a as an auxiliary vacuum suction means 84 is provided in this housing 81. . Suction duct 84
a uses the same vacuum pump 78 as the suction duct 75 of the vacuum suction means 68 as the suction source.
The intake air is divided into two parts, that is, an intake passage toward the suction duct 75 side and an intake passage toward the suction duct 84a side. The suction duct 84a is provided with a negative pressure gauge 87 for measuring the negative pressure in the suction duct 84a. Further, regarding the relationship between the suction area of the suction duct 84a in the auxiliary suction means 84 and the suction area of the suction duct 75 in the vacuum suction means 68, the suction area of the suction duct 84a in the auxiliary suction means 84 is set larger. Further, the auxiliary contact surface 80 is not linearly aligned with the belt contact surface 67a of the separation and supply belt 67, but the lower side thereof slightly projects toward the insertion portion 11 side, and the contact portion 67a and the auxiliary contact surface 8 are formed.
The connection with 0 is arranged in the shape of an approximate "C". In addition, as shown in the detailed structure in FIGS. 24 to 26, a breathable net 82 is attached to the front surface of the auxiliary contact surface 80 so as to cover the front surface thereof. A frame body 83 having a U-shape is attached to the outside. The frame body 83 has a concave-convex portion formed outside the auxiliary contact surface 80. The frame body 83 is convex, and the inside surrounded by the frame body 83 is concave. In addition, the lower end of the frame 83 has the auxiliary contact surface 8
It is provided so as not to cover the lower part 83a of 0.

When the paper sheet 10 is sent to the paper sheet feeding position 8, the lower end portion of the paper sheet 10 is vacuum-sucked by the suction duct 84a, and the lower end portion of the paper sheet 10 is assisted. While being adsorbed on the contact surface 80, the suction port of the suction duct 84a is blocked by this adsorption. In this suction, the lower end portion of the paper sheet 10 warps as shown in FIGS. 24 to 26. This will be described in more detail. FIG. 24 is an exploded perspective view of an essential part in a state where the lower end portion of the paper sheet 10 is adsorbed to the auxiliary contact surface 80, and FIG. 25 is a sectional view taken along line BB of FIG. FIG. 26 is a sectional view taken along the line CC in FIG. 24.
In FIGS. 24 to 26, the suction here is performed as shown in FIGS. 24 to 26 because the convex portions formed by the frame body 83 are formed at both ends (front and rear) and the upper portion of the auxiliary contact surface 80. The central portion of the paper sheet 10 projects toward the auxiliary contact surface 80 side, and both ends of the paper sheet 10 project toward the subsequent paper sheet 10 side. Made In this case, the lower end portion 80a of the auxiliary contact surface 80 does not have the frame 83 and is a flat surface, so that the lowermost portion of the paper sheet 10 corresponding to this portion 80 is located at the lowermost side. The part forms a flat part 10a. When the flat portion 10a is formed below the arched portion in this manner, a gap 88 formed between the flat portion 10a and the succeeding paper sheet 10 is formed.
Becomes larger, and air for peeling, which will be described later, is added to the gap 88. Therefore, in the structure of the portion of the auxiliary contact surface 80 configured in this way, the sheet feeding position 8
When the lower end portion of the paper sheet 10 sent to the device is attracted to the auxiliary contact surface 80 and a warp is created at the lower end portion, the succeeding paper sheets are overlapped and sent. If it is coming, it can be peeled off by warping, and for the succeeding paper sheet 10 that came later, a gap 88 (see FIG. 25, FIG. 26) is created between them by the warping, It can be left unattached. At the same time, the auxiliary contact surface 80 and the belt contact surface 67a of the separation / supply belt 67 are connected.
.. (see FIG. 20 to FIG. 26 and FIG. 30) are provided with an angle of a V shape, so that the paper sheet 10 adsorbed to the auxiliary contact surface 80 is 25 and 3 are bent between the auxiliary contact surface 80 and the belt contact surface 67a.
As schematically indicated by 0, a gap is also created between the bent portion 96 and the succeeding paper sheet 10.

In addition, in the separation assisting portion 64, a blower duct 85 for blowing air toward the gap 88 is arranged below the gap 88 corresponding to the portion where the gap 88 is formed.
Then, the air from the blowing duct 85 blown out is applied to the gap 88 from the lower side, and the air is positively separated between the paper sheets 10 to separate and supply only the first sheet. The belt 67 is held and sent. Further, since the flat portion 10a is provided at the lower end portion of the paper sheet 10 that is in contact with the auxiliary contact surface 80, and a large opening for blowing air is secured, the blower duct 8
A large amount of air from 5 is received by the gap 88, and the succeeding paper sheet 10 is peeled off conveniently. In addition, the ventilation duct 8
5 is connected to a blower 90 via a valve 89.

The paper sheet arrival detection means 106 and the paper sheet over-push detection means 105 are arranged below the separation assisting portion 64, and the feeding portion 11 is directed toward the direction in which the paper sheet 10 is conveyed. Has a contactor 92 extending therein and also a contactor 9
An arrival detection sensor 93 for the paper sheet arrival detection means 106 and an over-push detection sensor 94 for the paper sheet over-push detection means 105 are provided in the rear of 2. Further, a light blocking plate 92a for the arrival detection sensor and a light blocking plate 92b for the overpush detection sensor are provided on a part of the contactor 92. Then, the contactor 92 moves the paper sheet 10 to the paper sheet feeding position 8
When the sheet is not conveyed, the sheet is largely projected into the insertion portion 11, and the light blocking plates 92a and 92b are arranged at positions separated from the arrival detection sensor 93 and the overpush detection sensor 94, respectively. When the paper sheet 10 is transferred to the paper sheet delivery position 8 by the paper sheet transfer means 12 and the second paper sheet transfer means 16, and the paper sheet 10 is pushed by the paper sheet 10, the contactor 92 moves backward. First, the light-shielding plate 92a is inserted into the arrival detection sensor 93, whereby the arrival of the paper sheet 10 at the paper sheet delivery position 8 is confirmed by the arrival detection sensor 9
3, the paper sheet arrival detection means 106 (see FIG. 28)
The arrival of the paper sheet 10 can be detected by the paper sheet arrival detection means 106. And
If the paper sheet 10 is properly fed and the paper sheet 10 is not pushed too far toward the separating / supplying belt 67, the contactor 92 will not retreat beyond this state. When the paper sheets 10 are fed one after another and jammed and jammed, the contactor 92 is further retracted and the light shielding plate 92b is pushed into the over-pressing detection sensor 94, whereby the paper sheets 10 are pushed. Is pushed too much by the over-push detection sensor 94, and a signal is sent to the over-push detection means 105 (see FIG. 28), and the over-push detection means 105 pushes the paper sheet 10 too much. It has a structure that can detect that

(Structure on Paper-Sheet Conveying Means Side) The paper-sheet conveying means 4 has a belt contact surface 67a of the separation supply belt 67.
Drive system side transport belt means 95a and driven system side transport belt means 9 which are disposed adjacent to each other and facing each other.
5b. The paper sheet conveying means 4 draws the paper sheet 10 fed out in the vertical direction by the separation supply belt 67 between the drive system side conveyance belt means 95a and the driven system side conveyance belt means 95b, and The sheet 10 is conveyed to the sorting stacker 3a side through the reading unit 2 by the drive system side transport belt unit 95a and the driven system side transport belt unit 95b.

Further, inside the conveyor belt means 95b,
It is fed out by the separation supply belt 67, and is conveyed by the conveyor belt means 9
A thickness detection sensor 79 for the paper sheet thickness detection means 113 (see FIG. 28) for detecting the thickness of the paper sheet 10 passing between 5a and 95b is arranged. The thickness detection sensor 79 is a reflection type sensor, and is the conveyor belt means 95.
When the paper sheet 10 passes between a and 95b, it sends a signal to the paper sheet thickness detection means 113 according to the amount of displacement of the conveyor belt means 95b. Paper thickness detecting means 11
In 3, the thickness of the paper sheet is detected from the output information of the thickness detection sensor 79, and the information is sent to the system control unit 100. In the system control unit 100, the paper sheet thickness detecting means 1
Based on the information from 13, the paper sheet transfer means 12 and the second paper sheet transfer means 16 calculate the optimum speed for continuously feeding the paper sheets toward the paper sheet feeding position 8, and feed back the calculated speed. Control. Here, for example, when the thick paper sheet 10 is fed out by the separating and feeding belt 67 and when the thin paper sheet 10 is fed out, the succeeding paper sheet 10 is positioned at the paper sheet feeding position 8. And belt contact surface 6
The gap formed with 7a is different. That is, among the paper sheets being transferred, there are paper sheets of any thickness, including thick ones and thin ones. Therefore, it is necessary to control the transfer speed of the paper sheet transfer means 12 that feeds the separated paper sheet into the separating and supplying unit by the thickness of the delivered paper sheet. If the paper sheet transfer means 12 sends the paper sheet 10 at a constant speed without looking at the thickness information, the thinnest paper sheet 1 will not be pushed too much.
The feed rate must be zero. Then, when a thick paper sheet is fed, a wasteful time is generated for feeding for several seconds thereafter. In order to speed up the processing capacity of the machine, the thickness of the paper sheet immediately after being fed out is detected, and the thickness information is reflected in the control of the paper sheet transfer means 12. Therefore, in the structure of this embodiment, the thickness of the paper sheet immediately after being fed out is detected, and the thickness information is reflected in the control of the paper sheet transfer means 12, so that the processing capability of the machine is improved. Can be speeded up.

(Circuit Configuration) FIG. 28 is a circuit configuration block diagram of the entire sheet conveying apparatus of the sheet sorting system. In FIG. 28, the same reference numerals as those in FIGS. 1 to 27 denote the same parts as those in FIGS. 1 to 27. In FIG. 28, the entire sheet conveying apparatus is controlled by a system control unit (CPU) 100, and the system control unit 100 includes the reading unit 2, the sheet sorting unit 3, and the sheet conveying unit. In addition to the means 4, an input unit 11 and a paper sheet separating / supplying device 9 are connected. The motor 42 for driving the endless belt 21 in the feeding unit 11 is connected to the system control unit 100 via the motor drive control unit 101, and the motor 51 for driving the auxiliary transfer belt means 44A, 44B is the motor drive control unit. A motor 59 for driving the paper sheet vibrating means 15 is connected to the system control unit 100 via 103, and is connected to the system control unit 100 via a motor drive control unit 104. In the sheet separating / feeding device 9, the over-pressing detection sensor 94 is connected to the system control unit 100 via the over-pressing detection means 105.
A sensor 93 that is connected to the paper sheet 10 and detects the arrival of the paper sheet 10 is connected to the system control unit 10 via the paper sheet arrival detection means 106.
0, the vacuum pump 78 is connected to the system control unit 100 via the vacuum pump control unit 110, and the blower 90 is connected to the system control unit 100 via the blower control unit 111 to reduce the thickness of the paper sheet 10. The thickness detection sensor 79 for measurement is connected to the system control unit 100 via the paper sheet thickness detection means 113, and the separation supply unit 6 is connected.
The motor 71 for driving the separation / supply belt 67 of No. 3 has a system control unit 100 via a motor drive control unit 114.
It is connected to the.

(Control Operation of Main Part) FIG. 29 is a flowchart showing the operation of the main part of the paper sheet supply unit in the paper sheet sorting system. Therefore, the operation of the paper sheet supply process in the present embodiment will be described next according to the flow of FIG. First, prior to the description of the operation, in the structure of the present embodiment, the suction source of the suction duct 75 (vacuum suction means 68) on the separation supply unit 63 side and the suction duct 84 on the separation auxiliary unit 64 side.
The suction source of a (auxiliary suction means 84) has a structure in which it is covered by the same single supply source. The principle of operation in this structural portion will be described first. In this structure, the suction duct 75 and the suction duct 84a are the same suction source (vacuum pump 7
The suction from 8) is bifurcated in the middle, and when the suction duct 75 and the suction duct 84a are not closed, the intake block internal pressures are in equilibrium and equal. Even when there is a change in the environment such as closing or opening in either one, the internal pressures of the two transition to the equilibrium state, that is, the same pressure in a moment, although the values are different from before. When the intake port is open on either side, a large amount of air is supplied for vacuuming the open intake port, so the vacuuming effect is neutralized and the internal pressure is kept low. Both are in equilibrium. This is called leak, atmospheric pressure release, etc.

Therefore, the paper sheet 1 is placed at the paper sheet feeding position 8.
Separation and supply belt 6 arrived from the state where 0 has not arrived
Looking at the operation until it is fed toward the paper sheet conveying means 4 in 7, the operations are performed in the order of (1) to (4). The separating / supplying belt 67 in the separating / supplying unit 63 holds the sheet by suction until the sheet 10 is detected at the sheet feeding position 8 by the sheet detecting unit 92 or the negative pressure detecting unit 109. The position of the origin where the suction window 74 of the portion 67b is separated from the front surface of the suction duct 75, and the suction port of the suction duct 75 is blocked by the portion of the separation supply belt 67 other than the suction window 75 (hereinafter referred to as this The position is simply called "origin position")
It is located in. (1) First, when the sheet 10 has not arrived at the sheet feeding position 8 and the suction duct 75 is on standby with the suction port closed by the separation belt 67, the suction duct 84a Since the atmosphere is released in, the internal pressures of both are in equilibrium with a small value. Therefore, an excessive load is not applied to the vacuum pump 78 that is the suction source. (2) When the paper sheet 10 is sent to the paper sheet delivery position 8 and the paper sheet 10 abuts on the auxiliary contact surface 80, both are in a sealed state, so that the internal pressure of both is large. The value is in equilibrium. Subsequently, when the separation / supply belt 67 is rotated and the suction window 74 of the paper sheet suction holding portion 67 corresponds to the paper sheet 10 in front of the intake duct 75, the paper sheet 10 is sucked by the intake window 74 and sucked. The front surface of the duct 75 is kept closed. Here, the suction duct 84 in the auxiliary suction means 84
Since the suction inlet area of the suction duct 75 in the vacuum suction means 68 is formed larger than the suction inlet area of a,
When the separation / supply belt 67 is rotated, vacuum suction means 68
Due to the large suction force generated by the (intake duct 75), the preceding sheet 10 is drawn out while being sucked into the suction window 74. ((Adsorption force) = (Suction port internal pressure) x (Suction port area)). (3) Further, since the preceding paper sheet 10 is adsorbed by the vacuum suction means 68 (intake duct 75) to the separating / supplying belt 67 and fed out, when the separation from the bundle of paper sheets 10 is started, the auxiliary suction means is provided. Since the closed state of the intake duct 84a in 84 is released, a slight atmospheric pressure release occurs,
Internal pressure decreases. Therefore, the work of separating the preceding paper sheet 10 from the suction force of the auxiliary suction means 84 is smoothly performed. (4) Immediately after that, the succeeding paper sheet 10 sent by the paper sheet transfer means 12 and the transfer belt means 43A and 43B of the second paper sheet transfer means 16 and the auxiliary transfer belt means 44A and 44B. Contacts the auxiliary contact surface 80. Therefore, both are in a sealed state, and the internal pressures of both are large and are in equilibrium. As a result, the succeeding paper sheets attracted by the suction duct 84a are held (held) at unstable timing so as not to be taken out, and the preceding paper sheet 10 about to be taken out is separated and supplied with a great force. Done. That is, the sheet 10 is used to substantially open and close the valve to control it.

By the way, when a plurality of paper sheets 10 are put together in a bundle at the input section 11 of the paper sheet supply section 1, the partition arm section 19 and the partition arm section 1 are in an upright position.
It is subdivided between 9 and the arm (1
8a, 18b and 18a, 18b) are supported from both sides. When the paper sheet 10 is not detected by the paper sheet arrival detection means 106 or the negative pressure detection means 109 at the paper sheet delivery position 8, the paper sheet transfer means 12 and the second paper sheet transfer means. The 16 transfer belt means 43A, 43B and the auxiliary transfer belt means 44A, 44B move at a speed higher than usual. At this time, the paper sheet 10 loaded in the loading section 11 is aligned by the vibration of the paper sheet vibrating means 15 on the way, and the paper sheet transporting means 12 and the second paper sheet transporting means 16 are arranged. By the transfer belt means 43A, 43B and the auxiliary transfer belt means 44A, 44B, the sheets are fast-forwarded to the sheet feeding position 8 while standing. The paper sheet 10 is fast-forwarded and transported to the paper sheet feeding position 8 and the paper sheet arrival detection means 106 or the negative pressure detection means 1
When it is detected by 09, the transfer belt means 43A and 43B and the auxiliary transfer belt means 44A and 44B of the paper sheet transfer means 12 and the second paper sheet transfer means 16 perform the paper sheet feeding operation in the separation supply part 63. The speed becomes in synchronism with, and the above feedback control is performed.

On the other hand, as described above, the paper sheet 10 arrives at the paper sheet feeding position 8 and the paper sheet arrival detection means 106.
Alternatively, the separation / supply belt 67 in the separation / supply unit 63 keeps the sheet 10 until the negative pressure detection unit 109 detects it.
Is stopped by closing the suction hole 75 so that it will not accidentally jump into the suction hole 75 from a distance and be separated and delivered.
The output of the vacuum pump 78 is suppressed (low speed operation). As described above, when vacuum suction is not actually required, unnecessary output can be reduced and power consumption can be suppressed by suppressing the output of the vacuum pump 78. At the same time, since the load on the vacuum pump 78 is reduced, the life can be extended. Then, when the paper sheet 10 arrives at the paper sheet delivery position 8 and is detected by the paper sheet arrival detection means 106, the output suppression of the vacuum pump 78 is released, and the normal operation is resumed and separated. By rotating the supply belt 67, the separating and feeding operation of the paper sheet 10 is performed. Further, even when both the intake port of the intake duct 75 and the intake port of the intake duct 84 are closed and the internal pressure suddenly increases and the negative pressure detection unit 109 detects the sheet, the sheet 10 is detected. It is determined that the pump has reached the delivery position 8, the output suppression of the vacuum pump 78 is canceled and the normal operation is resumed.
By rotating the separation belt 67, the separation feeding operation of the paper sheet 10 is performed.

The control thereafter is the processing (pattern A) when the paper sheet 10 sent to the delivery position is detected by the paper sheet arrival detection means 106, and the paper sheet arrival detection means 10
6, the processing when the paper sheet over-pushing detection means 105 detects that the paper-sheet over-pushing is too much ((Pattern B)) and the paper sheet arrival detection means 106 is not detected, but the negative pressure gauge 87 sets the specified value. There is a process (pattern C) when the above negative pressure value is presented and detected by the negative pressure detecting means 109. The processing in each of the patterns A, B and C will be described below.

(Pattern A) When the sheet 10 is sent to the sheet feeding position 8 and the contactor 92 is pushed, the contactor 9 is pressed.
2 retracts, the light shielding plate 92a enters into the sensor 93, and from the output information, the paper sheet arrival detection means 106 is operated to detect the paper sheet 10.
It can be seen that the paper has been transferred to the paper sheet feeding position 8. The paper sheet 10 is detected by the paper sheet arrival detection means 106.
Is detected, the speed of the transfer by the transfer belt means 43A, 43B and the transfer by the auxiliary transfer belt means 44A, 44B of the paper sheet transfer means 12 and the second paper sheet transfer means 16 depends on the separation supply belt 67. The normal speed synchronized with the feeding operation of the paper sheet 10 is restored. At the same time, the suppression of the operation of the vacuum pump 78 is released, the separating / supplying belt 67 is rotated, and the sheet adsorbing / holding portion 67b is operated by the sheet sheet 1
The transport belt means 9 of the paper sheet transport means 4 holding 0 by suction.
It extends toward between 5a and 95b. Then, the paper sheet 10 passing between the belt means 95a and 95b of the paper sheet conveying means 4 detects the thickness from the output information obtained by the paper sheet thickness detection sensor 79 on the way, and according to this thickness. The system controller 100 corrects the transfer speed of the transfer belt means 43A and 43B of the paper sheet transfer means 12 and the second paper sheet transfer means 16 to execute the feedback control. Here, the feeding speeds of the paper sheet transfer means 12 and the second paper sheet transfer means 16 by the transfer belt means 43A and 43B are the same, and are adapted to the feeding ability by the separation supply belt 67. In addition, the paper sheet 1 by the separation supply belt 67
When the feeding of 0 fails, the paper sheet transfer means 12
And transfer belt means 43A of the second paper sheet transfer means 16,
43B is stopped and the auxiliary transfer belt means 44
The reverse rotation of A and 44B by fast-forwarding is performed for a certain period of time, the paper sheet 10 is once separated from the belt contact surface 67a, and the feeding operation by the separation supply belt 67 is performed again. If this feeding operation fails several times, an alarm is issued and the operator is instructed to perform necessary processing.

(Pattern B) At the sheet feeding position 8,
When the contactor 92 is pushed more than necessary by the paper sheet 10 and the light shielding plate 92b enters the sensor 94, it is confirmed from this output information that the paper sheet 10 is pushed more than necessary at the paper sheet feeding position 8. Can be seen by the over-pressing detection means 105. Then, the system control unit 100 causes the transfer belt means 43 of the paper sheet transfer means 12 and the second paper sheet transfer means 16 to move.
A, 43B transfer and auxiliary transfer belt means 44A, 4
The transfer by 4B is stopped, and the separating and feeding belt 67 performs the feeding operation of the paper sheet 10. Here, if the feeding of the paper sheet 10 by the separation and supply belt 67 is successful, the paper sheet 10 is conveyed by the conveyor belt means 95 as in the case of the pattern A.
The sheet thickness detection sensor 79 detects the thickness on the way, and the sheet is sent to the downstream side. On the other hand, when the feeding operation of the paper sheet 10 by the separating / supplying belt 67 fails, the auxiliary transfer belt while the paper sheet transfer means 12 and the transfer belt means 43A and 43B of the second paper sheet transfer means 16 are stopped. Only the means 44A and 44B perform fast-forward reverse rotation for a certain period of time so that the paper sheet 10 is once separated from the belt contact surface 67a, and then the separation supply belt 6 is again provided.
The feeding operation by 7 is performed. If this feeding operation fails several times, an alarm is issued and the operator is instructed to perform necessary processing.

(Pattern C) Since the sheet 10 is transferred to the sheet feeding position 8 while being displaced from the position of the contactor 92, the contactor 92 is not pushed, and the sheet arrival detecting means 106.
Even if the paper sheet 10 is not detected by the
When 0 is brought into contact with the portion of the auxiliary contact surface 80, the negative pressure in the suction duct 84a of the separation assisting portion 64 becomes equal to or higher than the specified value. Therefore, when the negative pressure obtained from the negative pressure gauge 87 is equal to or less than the specified value, it is determined that the paper sheet 10 has not been sent to the paper sheet delivery position 8, and the separation delivery belt 67 is determined.
Then, the vacuum pump 78 shifts to the standby state, but if the negative pressure exceeds a specified value, it is judged that the paper sheet 10 has been sent, and the paper sheet transfer means 12 and the second paper sheet transfer. Means 1
While the transfer by the transfer belt means 43A, 43B and the transfer by the auxiliary transfer belt means 44A, 44B of No. 6 are stopped, the paper sheet 10 is fed out by the separation supply belt 67. After that, similarly to the pattern A, the paper sheet 10 is sent between the transport belt means 95a and 95b, the thickness is detected by the paper sheet thickness detection sensor 79, and the paper sheet 10 is sent to the downstream side. Other operations are the same as those of the pattern A.

[0060]

As described above, according to the present invention, a plurality of sheets, which are collectively set and are sent to the position of the belt surface in the standing position, are fed by the belt surface of the rotating separation supply belt. Auxiliary abutment in which the lower end portion of the fed paper sheet is brought into contact with the lower side of the separating and feeding means that holds the sheets one by one by vacuum suction and feeds them downstream along with the rotation of the separating and feeding belt. And a second vacuum suction means for vacuum suctioning the lower end portion of the paper sheet on the auxiliary contact surface, and the auxiliary contact surface is sent to the position of the belt surface. Even if the mechanical paper sheet detection sensor that detects the arrival of the paper sheet does not output the paper sheet arrival signal, by measuring the negative pressure of the second suction means, the negative pressure is regulated. In the above cases, it is judged that the paper sheet has arrived, and the feeding operation of the paper sheet by the separating and supplying means. And a control to be executed. Therefore, it becomes possible to more accurately detect the paper sheets that have been transferred to the delivery position than in the past and to properly and continuously deliver the paper sheets, and it is possible to quickly process the delivery of the paper sheets. It is possible to provide a paper sheet separating / supplying device which has an excellent effect.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of a paper sheet sorting system according to an embodiment of the present invention.

FIG. 2 is a plan view showing the overall configuration of the paper sheet sorting system according to the present embodiment.

FIG. 3 is a schematic configuration layout diagram of the paper sheet sorting system according to the present embodiment as seen through from the side while seeing through the inside thereof.

FIG. 4 is a perspective view showing a main structure of a paper sheet supply unit of the paper sheet sorting system according to the present embodiment.

FIG. 5 is a perspective view showing a main structure of a paper sheet sorting system according to the present embodiment.

FIG. 6 is a perspective view showing a main structure of a charging unit according to the present embodiment.

7 is a schematic cross-sectional view taken along the line AA of FIG.

FIG. 8 is an overall perspective view of the paper sheet transporting means according to the present embodiment.

FIG. 9 is a perspective view showing the main structure of the paper sheet transporting means in the present embodiment.

FIG. 10 is a front view showing the main structure of the paper sheet transporting means in the present embodiment.

FIG. 11 is an exploded perspective view showing the main structure of the paper sheet transporting means in the present embodiment.

FIG. 12 is a side view of a partition arm portion of the paper sheet transporting means according to the present embodiment.

FIG. 13 is a perspective view of a partition arm portion of the paper sheet transporting means according to the present embodiment.

FIG. 14 is a perspective view of a partition arm portion of the paper sheet transporting means according to the present embodiment.

FIG. 15 is an exploded perspective view of a partition arm portion of the paper sheet transporting means according to the present embodiment.

FIG. 16 is an operation diagram of a partition arm unit according to the present embodiment.

FIG. 17 is an operation diagram of the partition arm unit in the present embodiment.

FIG. 18 is a perspective view showing a configuration of a main part of a charging unit according to the present embodiment.

FIG. 19 is an exploded perspective view of paper sheet vibration according to the present embodiment.

FIG. 20 is a diagram schematically showing the peripheral structure of the paper sheet separating and supplying apparatus according to the present embodiment.

FIG. 21 is an overall perspective view of the paper sheet separating / feeding device according to the present embodiment.

FIG. 22 is a front view of the paper sheet separating and supplying apparatus according to the present embodiment.

FIG. 23 is a top view of the paper sheet separating / feeding device according to the present embodiment.

FIG. 24 is a perspective view showing a main structure of a separation assisting unit according to the present embodiment.

25 is a sectional view taken along the line BB of FIG.

26 is a cross-sectional view taken along the line CC of FIG.

FIG. 27 is an explanatory diagram of a posture defect detection operation according to the present embodiment.

FIG. 28 is a circuit configuration block diagram of the entire paper sheet transporting device of the paper sheet sorting system according to the present embodiment.

FIG. 29 is a flowchart showing a process of a main part operation of the paper sheet sorting system according to the present embodiment.

FIG. 30 is a schematic diagram showing a main structure of a paper sheet separating / feeding device according to the present embodiment.

[Explanation of symbols]

1 Paper supply department 2 reading section 3 Paper sheet sorting section 3a Sorting / collecting unit 4 Paper transport means 5 Transfer cart 6 storage shelves 8 Paper sheet feeding position 9 Paper sheet separation and supply device 10 Paper sheets 11 Input section 12 Paper transport means 63 Separation and supply section 64 separation aid 66a, 66b, 66c Guide roller 67 Separate supply belt 67a Belt contact surface 67b Paper sheet adsorption holding unit 68 Vacuum suction means 70a, 70b Axis 70c drive shaft 71 motor 72a Fixed holding plate 72b Movable holding plate 74 Suction window 75 Suction duct 78 Vacuum pump 79 Thickness detection sensor 80 Auxiliary suction window (auxiliary contact surface) 84 Auxiliary suction means 84a suction duct 87 Negative pressure gauge 92 Contact 93 Paper sheet detection sensor 94 Over-press detection sensor 95a, 95b Conveying belt means 105 Over-press detection means 106 paper sheet detecting means 110 Vacuum pump control means 112 Valve control means 113 Paper thickness detecting means 114 Motor drive controller

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nobuo Shibata Inventor Nobuo Shibata 3-1, Tsunashima Higashi 4-chome, Kohoku Ward, Yokohama City, Kanagawa Matsushita Communication Industrial Co., Ltd. (56) Reference JP-A-9-216744 (JP, A) JP-A-9-263338 (JP, A) JP-A-59-114228 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65H 1/00-3/68

Claims (2)

(57) [Claims] 1. A plurality of paper sheets set in a bundle and sent in an upright position are vacuum-sucked one by one on a belt surface of a rotating separation supply belt, and the separation supply belt is rotated. On the lower side of the separating and feeding means which is fed to the downstream side, the auxiliary contact surface with which the lower end side portion of the paper sheet sent to the position of the belt surface is contacted, and the auxiliary contact surface. An auxiliary vacuum suction means for vacuum suctioning the lower end portion of the paper sheet, and a mechanical paper sheet arrival detection sensor for detecting the arrival of the paper sheet sent to the position of the belt surface. With the provision, the negative pressure of the auxiliary suction means is measured, and when the negative pressure is equal to or higher than a specified value, the sheet arrival detection sensor does not output the sheet arrival signal. It is judged that the paper sheet has arrived, and the paper sheet is separated by the separating and supplying means. Paper sheet separating and feeding method characterized by comprising a control to execute the feeding operation. 2. A rotating separation supply belt and a plurality of sheets, which are set together and are sent in an upright position, are vacuum-sucked through the belt surface of the separation supply belt and suction-held on the belt surface. And a first vacuum suction means, which separates and feeds the paper sheets suction-held on the belt surface to the downstream side one by one with the rotation of the separation and supply belt; An auxiliary contact surface that is provided on the lower side and on which the lower end side portion of the paper sheet that has been sent to the position of the belt surface abuts, and this auxiliary contact surface is the lower end of the paper sheet. Auxiliary separating means having a second vacuum suction means for applying suction force to vacuum the side portion, and a paper sheet for detecting arrival of the paper sheet sent to the position of the belt surface. Class arrival detection sensor and a negative pressure sensor for measuring the negative pressure of the second vacuum suction means. When the negative pressure measured by the pressure measuring means and the negative pressure measuring means is equal to or more than a specified value, even if a signal of arrival of the paper sheet is not output from the paper sheet arrival detection sensor, the belt surface A paper sheet separating and supplying apparatus, comprising: a control unit that determines that the paper sheet has arrived at a position and executes a feeding operation of the paper sheet by the separating and supplying unit.