JPH09142684A - Paper sheet takeout device and paper sheet inspection device using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform highly precise takeout and reduce noise even if the speed of the takeout action is increased by controlling suction force inside a chamber to be sufficiently exhibited based on the timing of coinciding the chamber hole with a rotor suction hole. SOLUTION: A controller 61 can input output signals from a presser force detection sensor 46, a rotor rotation speed and suction hole position detection sensor 51, a drain state detection sensor 55, and a takeout pitch detection sensor 56. After signal parameters of the presser force of the paper sheets, the drain states of the paper sheets, the rotation speed of the takeout rotor, etc., reach prescribed values and when the rotor suction hole 28 is coincided with a chamber hole 45 so that the suction force of the paper sheets is exhibited, an air conditioning unit 60 is so controlled that the internal pressure of the chamber 22 becomes into a rising state to a prescribed value. Namely, when a negative pressure in the chamber 22 is fully risen, a solenoid valve, etc., are so controlled that the suction force can be exhibited at the timing of coinciding the rotor suction hole 28 with the chamber hole 45.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet take-out device for taking out laminated paper sheets one by one, and a paper sheet taken out and inspected by using the paper sheet take-out apparatus, and a paper sheet to be classified based on predetermined conditions. Belongs to the class inspection equipment.

[0002]

2. Description of the Related Art A conventional example of a paper sheet take-out device which is mounted on a paper sheet inspection device and sequentially takes out stacked paper sheets will be described. The paper sheet inspection device is a stack of n sheets (n is an arbitrary constant), and the collected paper sheets that have been loaded are continuously taken out at a predetermined pitch at the take-out section, and then conveyed at a high speed by a belt. At the same time, the detection unit detects whether the sheets are normal or not, and decides whether to discard or reuse each sheet,
The sorting unit branches the sheets into two defined directions, and the waste paper sheets and the reuse paper sheets are separately re-collected.

The accumulated waste sheets are then shredded. The processing speed of paper sheets is about several tens of sheets per second, and the transport speed is always constant at several meters per second. FIG.
2 shows the configuration of a conventional paper sheet takeout device.

In FIG. 12, the flywheel 100 is
It is connected to the rod 101 via a bearing (not shown) and is driven by a motor (not shown) via a V-belt (not shown). The conversion link 102 is connected to the flywheel 100 via a bearing (not shown), and the cam 103 fixed to the rod 101 and the crank 10 are connected.
Slidingly connected to the conversion link 106 fixed to 5 by cam followers 107 and 108, respectively.

The crank 105 is connected to the rod 101 via a bearing 110, and is further fixed to the take-out rotor 111. The chamber 112 is fixed to the rod 101 so as not to contact the inside of the take-out rotor 111.
The frame 113 supports the rod 101 and covers the chamber 112.

Due to the above mechanism, the constant speed rotary motion of the flywheel 100 is converted to the conversion links 106, 102 and the cam.
Converted to intermittent rotation motion (repeating operation, stop, operation) by 103, and taking out through crank 105 Rotor 1
11 is configured to be transmitted.

The take-out rotor 111 has a thin-walled cylindrical structure with a hollow inside, and a rotor suction hole composed of a plurality of through holes on its circumferential surface.
115 is provided. Width H1 of this rotor suction hole 115
Is, for example, about 40 mm with respect to the width of a sheet of 80 mm, and a groove 116 as a relief of a sensor (not shown) for detecting the position of the upper surface of the stacked sheets is provided in the center about 1/3. The size of the rotor suction holes 115 is about 6 mm, and a plurality of them are provided with the groove 116 interposed therebetween. In order to increase the friction coefficient around the rotor suction hole 115, a groove is formed on the circumferential surface of the take-out rotor 111, and a thin rubber plate 117 is formed.
(Hereinafter, referred to as a rubber chip) is attached. The rubber tip 117 is configured to slightly protrude from the circumferential surface of the take-out rotor 111 to be convex when attached.

The chamber 112 has a cylindrical structure in which one side surface is closed and the other side surface is also closed by the frame 113, so that the chamber 112 has a hollow structure. Then, a notch portion connected to the inner cavity is formed in a part of the circumferential surface of the chamber 112 to form a chamber hole 114 (shown in FIG. 13).

The outer peripheral surface of the chamber 112 is taken out from the rotor.
It has a minute gap so that it can rotate without coming into contact with the inner peripheral surface of 111. The cavity inside the chamber 112 is connected to a vacuum pump (not shown) via a pipe 118 provided in the frame 113, and is kept at a negative pressure. As a result, when the take-out rotor 111 rotates and the rotor suction hole 115 passes through the chamber hole 114, it exerts a suction force, and the friction around the rotor suction hole 115 causes a sheet take-out force, so that the paper sheet It can be taken out one by one. A series of mechanical parts are controlled so that they can be temporarily stopped at a position where the rotor suction hole 115 overlaps the chamber hole 114 and can exert a suction force.

FIG. 13 shows an enlarged view of a conventional paper sheet take-out section. This take-out unit is composed of a paper feed device 120 and a take-out device 1
21, two-sheet picking prevention device 122, photoelectric sensor 123, conveyance path 1
It consists of 24. The paper feed controller 130 detects the position of the uppermost surface of the paper sheet 200 by the rotary magnetic sensor 131 and the rotor 132, and the distance between the take-out rotor 111 and the uppermost surface of the paper sheet 200 is within a certain distance (for example, about 1 mm). Control the position of the paper tray 133 so that it fits.

Further, the paper feed controller 130 uses the stopper 136 connected to the actuator 135,
By pressing the uppermost surface, the timing of the start of taking out the sheet is controlled. The chamber hole 114 is configured such that the paper sheet 200 is conveyed from the vicinity where the take-out rotor 111 and the paper sheet 200 contact each other.
It is open to the position where it is loaded into 124, and the chamber hole 114
The rotor suction hole 115 stopped at the leading end sucks one sheet on the uppermost surface of the stack, accelerates the sheet, and when the sheet reaches an arbitrary speed, the sheet is transferred to the transport path 124. The taken-out sheet 200 is carried into the carrying path 124 by the taking-out rotor 111 and the first roller 136 arranged in the nest.

[0012]

By the way, due to the recent demand for improving the performance of the paper sheet inspection apparatus, it is required to increase the speed of the paper sheet take-out apparatus, reduce the noise of the apparatus, and further improve the take-out accuracy. Has been.

The object of the present invention is made in consideration of the above circumstances, and it is possible to take out with high accuracy even if the take-out operation is speeded up, and a paper sheet take-out apparatus which achieves low noise and the same. It is to provide a paper sheet inspection apparatus using the.

[0014]

According to the paper sheet take-out device according to claim 1 and the paper sheet inspection device according to claim 8, a cylindrical chamber and an inner surface from the outer surface of the chamber are provided. A chamber hole penetratingly formed, a suction means for sucking the inside of the chamber, a hollow rotor rotatably arranged concentrically with an outer surface of the chamber with a minute gap, and the rotor A rotor suction hole, which is formed so as to penetrate from the surface to the inside and cooperates with the chamber hole to suck and take out the paper sheet by the suction force of the suction means, and the chamber hole and the rotor suction hole overlap each other. A control device for controlling the suction means so that the suction force inside the chamber by the suction means is exerted as a force of a magnitude sufficient to suck the paper sheet at a timing at which the suction force of the paper sheet can be generated. And It is characterized in that was.

With the above construction, the rotor suction hole and the chamber hole do not overlap each other until the suction force (negative pressure) inside the chamber rises sufficiently to generate the suction force of the sheet. In addition, since the suction timing of the suction means is controlled by the control means, it is possible to stably take out the first sheet, and the take-out pitch becomes stable, and the timing of taking out the sheet is adjusted according to the timing. Since the suction force is generated by the suction force, the noise of air leakage from the rotor suction hole (the noise of the air flowing into the rotor suction hole) can be reduced, and a stable device with low noise can be realized.

According to the paper sheet take-out device of the second aspect and the paper sheet inspection device of the ninth aspect, the chamber is formed in a cylindrical shape and penetrates from the outer surface of the chamber to the inside. A chamber hole, suction means for sucking the inside of the chamber, a hollow rotor rotatably arranged concentrically with an outer surface of the chamber having a minute gap, and a rotor penetrating from the rotor surface to the inside. Formed by the suction means of the suction means in cooperation with the chamber hole for sucking and taking out the paper sheet, and the suction means after the rotor is ready to take out the paper sheet. And a control means for controlling the suction means so as to start suction inside the chamber.

With the above construction, the suction force is generated at the timing when the paper sheet is taken out, so that the air leakage sound from the rotor suction hole (air inflow sound into the rotor suction hole) is reduced. A low noise and stable device can be realized.

According to the paper sheet take-out device of the third aspect, the cylindrical chamber, the chamber hole penetrating from the outer surface of the chamber to the inside, and the suction means for sucking the inside of the chamber. A hollow rotor rotatably arranged concentrically with a small clearance from the outer surface of the chamber;
In the case where a trouble occurs in the rotor suction hole for sucking and taking out the paper sheet by the suction force of the suction means in cooperation with the chamber hole, and the taking-out of the paper sheet by the rotor,
A control means for controlling the suction means so as to stop the suction inside the chamber by the suction means.

With the above construction, when a trouble such as a jam occurs in taking out a paper sheet, the suction of the inside of the chamber by the suction means is stopped so that a jam occurs. The unnecessary suction can be stopped immediately.

According to the paper sheet take-out device of the fourth aspect and the paper sheet inspection device of the tenth aspect, the take-out pitch between the paper sheets is a predetermined value or more than the reference pitch. If it is predicted that the short pitch will be taken out, the pitch of the paper taken out that is expected to be the short pitch is converted to a transfer long pitch that is longer than the reference pitch by a predetermined value or more. It is characterized in that it is taken out after that, or it is taken out after being converted into a transfer short pitch shorter than the reference pitch and longer than the short pitch by a predetermined value or more.

With the above-mentioned configuration, the short pitch, which is difficult to perform the piecewise integration, is converted into the transfer long pitch or the transfer short pitch, which is easy to make the piecewise integration, so that the processing up to the piecewise integration can be continuously performed. It can be carried out. As described above, according to the present invention, it is possible to take out a paper sheet with low noise and with high accuracy even if the paper sheet is taken out at high speed.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of the overall schematic configuration of a paper sheet inspection apparatus equipped with the paper sheet takeout apparatus of the present invention. This paper sheet inspection apparatus is roughly arranged in the order of a take-out unit 2, a conveyance unit 3, a detection unit 4, a sorting unit 5, and a stacking unit 6 for paper sheets 1. In the state where n sheets (n is an arbitrary constant) are stacked one by one, the sheet 1 is conveyed to the sheet feeding device 10 by a conveying device (not shown).

After that, the take-out device 11 from the paper feeding device 10
As a result, the paper sheet 1 is sequentially taken out and put into the transport path 12. At this time, the two-sheet taking prevention device 13 provided so as to face the taking-out device 11 prevents two or more sheets 1 from being taken out at the same time. A detection unit is arranged so as to face the surface of the paper sheet 1 on the transport path 12, and the surface condition of each paper sheet 1 is inspected to check the damage condition, the dirt condition, and the like.

The stacking unit 6 is divided into one for recirculating paper sheets and one for waste paper sheets, and the conveying direction of the paper sheets is divided based on the result of the inspection. The sorting is performed by an opposed type sorting gate device 15 provided on the transport path 12. The stacking unit 6 is provided with a stacking impeller 17, which receives the sheets 1 conveyed at high speed, stops them, and stacks them again. The impeller 17 has a disk shape having spiral grooves 18 equidistantly around its center, and is driven by a stepping motor (not shown) or the like. In the post-processing, the recirculated paper sheets are bundled into a predetermined number of sheets and carried out of the apparatus, and the discarded paper sheets are sent to the disposal processing.

Photoelectric sensors 56 (only one set is shown: hereinafter referred to as a take-out pitch detecting sensor) for checking the passage of the paper sheet 1 are provided at several points on the conveying path 12. The take-out pitch detecting sensor 56 is used for confirming the take-out timing and pitch of the paper sheet 1, passage and jam on the conveying path 12 (paper jam), confirmation of insertion into the stacking unit 6, and calculation of the paper-sheet pitch. In particular, the photoelectric sensor 19 arranged immediately after the take-out device 11 shown in FIG. 1 is used to detect the pitch, skew, etc. immediately after taking out the paper sheet 1.

FIG. 2 is a block diagram for explaining the schematic structure of the paper sheet take-out device 11. The chamber 22 has a hollow cylindrical structure having a hollow inside, and a chamber hole 45 (see FIG. 3) connected to the inner cavity is formed on the outer peripheral surface of the cylinder, and the inner cavity is a vacuum pump (see FIG. 4). Etc. and is kept at a negative pressure with respect to the atmospheric pressure during operation. Further, the take-out rotor 21 has a thin hollow cylindrical structure, a plurality of rotor suction holes 28 penetrating the cylindrical surface are formed, and the chamber 22 is concentrically inserted into the hollow take-out rotor 21 and the take-out rotor 21 Is rotatably attached to the chamber 22 via two bearings 23 and 24. Inner peripheral surface of take-out rotor 21 and chamber 2
The gap between the outer peripheral surface of No. 2 and the outer peripheral surface is maintained at about several tens of μm, and a structure with little air leakage is adopted.

The bearing 24 has an inner ring fixed to the chamber 22 and the rod 25, and an outer ring fixed to the take-out rotor 21 and the rotor cover 26. Meanwhile bearing 23
The outer ring is fixed to the take-out rotor 21 and the rotor cover 33, and the inner ring can be pressed by the guide 27 toward the bearing 24. The spacer 29 is positioned by the chamber 22 and the bolt 3
It is fixed by 0 and a washer 31.

The Belleville spring 32 arranged between the spacer 29 and the guide 27 is compressed, and the generated elastic force acts on the bearing 23 and the bearing 24 through the guide 27. As a result, the bearings 23 and 24 can be preloaded (constant pressure preload), so that the life of the rotating mechanism can be extended. Since this preload amount is determined by the compression amount of the Belleville spring 32, it is determined by positioning the spacer 29 with respect to the chamber 22 at a predetermined position. Here, if the bearings 23 and 24 are made a clearance fit with the take-out rotor 21 and fixed by the thrust forces of the rotor covers 33 and 26, assembly and disassembly are easy.

The dust covers 35 and 36 are fixed to the rotor covers 33 and 26, respectively. By sliding with the spacer 29 and the rod 25, respectively, the dust covers 35 and 36 have a structure for preventing paper dust or the like from entering the bearings 23 and 24. Has become. The rod 25 is vertically fixed to the sub-base 37, whereby the entire mechanism portion including the take-out rotor 21, the chamber 22 and the like for performing the take-out operation is fixed to the sub-base 25.

Two crown portions 38, 39 are provided on the outer peripheral surface of the take-out rotor 21, and the endless flat belt 4 is provided.
1 and 42 are respectively applied to transmit the rotational force to the take-out rotor 21. This crown portion 38, 39
The outer diameter of the flat belts 41 and 42 is a concave shape in which the outer diameter of the flat belts 41 and 42 is slightly recessed from the diameter of the outer peripheral surface of the take-out rotor 21, and the flat belts 41 and 42 directly contact the paper sheet 1 when the paper sheet is taken out. It is configured not to contact. Therefore, the paper sheet 1 can be reliably sucked and taken out by the rotor 21, and there is no problem that the paper sheet 1 has uneven pitch or the paper sheet 1 is soiled.

In consideration of the thickness of the flat belts 41, 42, the crown portions 38, 39 have the flat belts 41, 42 when the flat belts 41, 42 are wound around the crown portions 38, 39.
2 is taken out from the surface of the rotor 21, for example, 0.1 to 1 mm
It is formed so as to be depressed to some extent.

Further, in order to increase the coefficient of friction with respect to the paper sheet around the rotor suction hole 28 and to reliably take out the paper sheet, a hole is provided on the outer peripheral surface of the take-out rotor 21 at a portion corresponding to the rotor suction hole 28. A rubber chip 43 is attached to the portion. However, even if the rubber tip 43 is attached,
The outer peripheral surface of the take-out rotor 21 is configured to be flush (no step). Thereby, no extra disturbance is given to the paper feeding operation. Instead of the rubber tip 43,
The coefficient of friction may be increased by applying ceramic particles or the like to the outer peripheral surface of the take-out rotor 21. Rotor suction hole 28
Is the crown portion 38, 39 (that is, the flat belts 41, 4).
It is arranged so as to sandwich 2), and is also arranged at a position where both ends in the width direction of the paper sheet 1 to be used can be gripped.

The detailed structure of the paper sheet take-out section 2 will be described below with reference to FIG. FIG. 3 shows the sheet feeding device 10,
FIG. 3 is a configuration diagram of a take-out unit 2 including a take-out device 11 and a two-sheet take-out prevention device 13. The leading end of the sheet 1 is pressed against the take-out rotor 21 by the paper feeding device 10 with a constant pressing force, and this pressing force is detected by the pressing force detection sensor 46. Then, the rear end side of the paper sheet 1 from the pressing portion of the paper sheet 1, particularly near the SA portion in the drawing, is separated by blowing air from a nozzle or the like (not shown). The loosening state of the paper sheet 1 is detected by a loosening state detection sensor 55 described later. The take-out rotor 21 rotates around the chamber 22 at a constant angular velocity (constant velocity), and its drive is an endless flat belt 4
Servo motor (not shown) is performed via the motors 1 and 42. The flat belts 41 and 42 form a system with the take-out rotor 21, a drive roller 48, an idle roller 49, a tension roller (not shown), and other idle rollers, guides, and a conveyance path (see FIG. 1). ). The rotation speed of the take-out rotor 21 and the rotation position of the rotor suction hole 28 are detected by the shielding plate 50 attached to the rotor cover 26 passing over the photoelectric sensor (rotor rotation speed and suction hole position detection sensor) 51. Is configured.

By adopting the press-feeding method in which the paper sheet 1 is pressed against the take-out rotor 21 as described above, the good adhesion between the paper sheet 1 and the take-out rotor 21 is compensated, so that the suction force of the take-out rotor 21 is efficiently increased. It is well transmitted to the paper sheet 1 and can be taken out stably.

The paper sheet 1 is pressed against the take-out rotor 21 by the paper feeding device 10 and then adsorbed and taken out. The paper sheet 1 is carried into the conveying path 12 while being guided by the flat belts 41 and 42 and the two-sheet taking prevention block 52. It As is conventional, the two-sheet removal prevention device 13 prevents two or more sheets 1 from being taken out at the same time. The initial position of the leading edge of the paper sheet 1 is positioned on the side surface of the two-sheet removal prevention block 52. In the chamber hole 45, when the inner peripheral surface side of the head in the rotation direction of the rotor suction hole 28 overlaps with the chamber hole 45, the outer peripheral surface side of the rotor suction hole 28 overlaps with a perpendicular line drawn from the center point of the take-out rotor 21 ( It is opened from the front end) to the position (rear end) where the paper sheet 1 is peeled off by the flat belts 41 and 42. However, the front end may be arranged closer to the transport path and the rear end may be arranged closer to the take-out side. The positions of the rotor suction holes 28 arranged in the circumferential direction are such positions that the take-out rotor 21 can grip the paper sheet 1 until the front end of the paper sheet 1 is gripped by the transport path 12. The entrance of the conveying path 12 is formed by the flat belts 41 and 42 gradually approaching and contacting each other immediately after the double-sheet picking prevention device 13, and grips the sheet 1 at the contact position.

(Description of Characteristic Parts of the Invention) An air conditioning unit and its control device, which are features of the present invention, will be described below with reference to FIGS. 3 and 4.

In the paper sheet take-out device of the present invention, the take-out rotor 21 is continuously rotated at a constant speed while the paper sheet is taken out by one.
A method of sequentially picking up sheets one by one (called a constant-speed rotor method) is adopted. In this constant-speed rotor method, the pressure inside the chamber 22 is set to a negative pressure with respect to the atmospheric pressure, and the timing of adsorbing paper sheets is appropriately controlled. It is most important to improve the take-out performance. The air-conditioning unit 60 and the control device 61, which will be described below, control timing control for that purpose.

The air-conditioning unit 60 is provided for controlling the pressure (negative pressure) inside the chamber 22 by performing intake / exhaust in the chamber 22, is fixed to the rod 25, is air-tightly connected to the chamber 22, and controls. The state of intake / exhaust is controlled by the device 61.

The air-conditioning unit 60 is air-tightly connected to a vacuum pump 67, etc., as will be described later, an intake passage 65, an electromagnetic valve 69 interposed in the intake passage 65, a compressor 68, etc. Exhaust path 66 and this exhaust path 6
It is composed of a solenoid valve 69 and the like interposed in the middle of 6. In the configuration shown in FIG. 4, these air conditioning units 6
0 is attached to chamber 22
It may be stored inside.

The control device 61 includes a pressing force detection sensor 46,
The rotor rotation speed and the suction hole position detection sensor 51, the separation state detection sensor 55, and the output pitch detection sensor 56 are provided so that the output signals can be input, and the sheet pressing force, the sheet separation, and the extraction rotor rotation speed. After the signal parameters such as
The air-conditioning unit 6 controls the pressure inside the chamber 22 to rise to a predetermined value (negative pressure) when 8 overlaps with the chamber hole 45 to exert the suction force of the paper sheet.
Control 0. That is, with the negative pressure in the chamber 22 rising sufficiently, the rotor suction hole 28 and the chamber hole 45
The solenoid valve and the like described later are controlled so that the attraction force is exerted at the timing when and overlap.

More specifically, as shown in FIG. 4, the control device 61 detects the pressing force when the paper feeding device 10 on which the paper sheet 1 is placed is taken out and pressed against the rotor 21.
6, a signal S1 from the sensor 6, a signal S2 from the sensor 51 that detects the rotational speed of the take-out rotor 21 and the rotational position of the rotor suction hole 28, and the paper when the separating air is jetted to the paper sheets 1 stacked in the paper feeding device 10. A signal S3 from the sensor 55 that detects the loosening state of the leaf 1, and a sensor 56 that detects the pitch of the paper sheets 1 that have been sequentially picked up by the pick-up rotor 21.
Signal S4 from each of them is input, and the inlet and outlet of the intake passage 65 and the exhaust passage 66 are opened and closed at an arbitrary timing. The intake passage 65 is airtightly connected to the vacuum pump 67 to control the inside of the chamber 22 to a negative pressure, and the exhaust passage 66 is airtightly connected to the compressor 68.
For example, electromagnetic valves 69 and 70 are used to open and close the valve 5 and the exhaust passage 66. Solenoid valve 6 according to a signal from controller 61
The negative pressure in the chamber 22 can be controlled to be turned on / off by controlling the opening / closing of the valves 9 and 70. It should be noted that the vacuum pump 67 and the compressor 68 may be configured in plural according to the capacity.

The timing at which the negative pressure in the chamber 22 is sufficiently raised is at least the timing at which the rotational position of the take-out rotor 21 is detected and the rotor suction hole 28 of the take-out rotor 21 and the chamber hole 45 overlap each other. Open control.

FIG. 5 shows an example of the change in the negative pressure in the chamber 22 according to the control of the air conditioning unit 60 at the start / end of taking out three sheets, taking the case of three sheets as an example. 5A corresponds to the case where the air conditioning unit 60 and the control device 61 according to the present invention perform control, and FIG. 5B shows a comparative example in which control is not performed. The operation delay of the air conditioning unit 60 is t0 (s).

In FIG. 5 (a), when the value of the pressing force detection sensor 46 reaches a predetermined value and the value of the loosening state detection sensor 55 reaches a predetermined value, the rotor suction hole 28 becomes the chamber hole 45 after t0 (s). A signal for opening the intake passage 65 of the air conditioning unit 60 is output from the control device 61 at such a timing as to end the passage of the air conditioner 60 to control the electromagnetic valve 69 to open (the electromagnetic valve 70 closes). By controlling the solenoid valve 69 in this manner, the negative pressure in the chamber 22 can be sufficiently raised in a period in which the rotor suction hole 28 and the chamber hole 45 do not overlap each other.

Then, when the take-out rotor 21 rotates and the rotor suction hole 28 and the chamber hole 45 overlap with each other while the negative pressure in the chamber 22 rises sufficiently in this way,
One sheet of paper 1 pressed against the take-out rotor 21 is adsorbed and taken out, and then the take-out rotor 21 is further rotated, and the second sheet and the third sheet are sequentially conveyed at each timing when the rotor adsorption hole 28 and the chamber hole 45 overlap. The paper sheet 1 of the eye is adsorbed and taken out.

When a signal (photoelectric sensor or the like) is detected that the paper sheet 1 does not remain in the paper feeding device 10 after the predetermined three paper sheets 1 have been taken out, the rotor suction hole 28 The electromagnetic valve 69 is controlled to be closed (the electromagnetic valve 70 is opened) at a timing t1 at which the negative pressure in the chamber 22 is reduced (OFF) before the chamber hole 45 and the chamber hole 45 overlap.

As described above, according to the control of the present invention shown in FIG. 5 (a), the rotor suction hole 28 is closed only during the period of taking out the paper sheet 1, that is, the taken-out paper sheet 1. Only when there is a negative pressure in the chamber 22, it is possible to reduce the noise of air flowing into the rotor suction hole 28. Further, the negative pressure on the first sheet of the taken-out sheet 1 can be sufficiently stabilized.

On the contrary, in the comparative example shown in FIG. 5 (b), since the control considering the position of the rotor suction hole 28 is not performed, the timing of the transition period before the negative pressure in the chamber 22 sufficiently rises. Since the rotor suction hole 28 passes through the chamber hole 45 at t2, the negative pressure corresponding to the first sheet of the taken-out sheet becomes insufficient, and the short pitch (hereinafter referred to as the initial) between the first and second sheets is taken out.・ It is called short pitch). It is desirable that the short pitch does not occur as much as possible because it is difficult to carry out the above-mentioned divisional integration.

As shown in FIG. 6, the initial short pitch is a case where the pitch is smaller than the reference pitch P. However, for example, the first sheet becomes unstable for some reason, If the second paper sheet is taken out at a predetermined timing when the predetermined take-out timing is delayed, the interval between the first and second sheets becomes shorter than the predetermined interval. Such a short pitch is called an initial short pitch P (IS).

Incidentally, other types of short pitch generation patterns are shown in FIG. 7 and FIG. As shown in FIG. 7, (N +
1) Take out the first sheet defectively and have a long pitch P of a specified length.
When the sheet is taken out in (L), the short pitch is taken out when the (N + 2) th sheet is taken out normally. Hereinafter, such a short pitch is referred to as an expectant short pitch P (ES). This is (N
This can be predicted by detecting the +1) long pitch of a predetermined length by, for example, a photoelectric sensor (pickup pitch detection sensor) 56.

Further, as shown in FIG. 8, when the (N + 2) th sheet is taken out in a state in which the brake of the double-sheet picking prevention device 13 is not sufficiently effective and the sheet is projected to the conveying system side, for example. Will also take out the short pitch. Hereinafter, such a short pitch is referred to as an abrupt short pitch P (AS). This is (N
+2) Forecasting can be performed by detecting the position of the second sheet by the photoelectric sensor 57, for example.

Next, the concept of short pitch conversion for preventing inconvenience due to short pitch extraction will be described with reference to FIGS. 9 and 10. As shown in FIG. 9, when the (N + 2) th sheet is normally taken out, the (N + 1) th sheet becomes an expectant short pitch P (ES) pickup, and the Nth sheet and the (N + 1) th sheet are taken out. When it is detected that the long pitch P (L) is taken out between the eye and the predetermined pitch which is longer than the reference pitch, and when this long pitch P (L) is taken out, the taking out is performed at the next timing. Not done,
It is controlled so that the (N + 2) th sheet is taken out after one or more empty swings. It is naturally possible to perform such a control of the idling by reducing the negative pressure value in the chamber 22 to a value at which the idling is possible, but without controlling the negative pressure value in the chamber 22, Before the paper sheet 1 is taken out, the paper sheet 1 may be held by an electrostatic adsorption device, a vacuum adsorption device, or the like separately provided so that the paper sheet 1 cannot be taken out and shaken. By performing the control as described above, the extraction of the expectant short P (ES) is converted into the transfer long pitch P (TL), and for example, the inconvenience of stacking in the sorting stacker can be prevented.

Similarly, in FIG. 10, if the (N + 2) th sheet is normally taken out, and the (N + 1) th sheet is to be taken out as the expectant short pitch P (ES), It is detected that a long pitch P (L) is taken out from the (N + 1) th sheet which is longer than a reference pitch by a predetermined value or more, and if this long pitch P (L) is taken out, the next timing is detected. Then, the transfer short pitch P (TS) is taken out between the (N + 1) th sheet and the (N + 2) th sheet and between the (N + 2) th sheet and the (N + 3) th sheet by taking out the sheet with a predetermined delay. To do.
As a result, the expectant short pitch P (E
S) Take out the transfer short pitch P (T
S) It means that it was converted to takeout.

By sequentially shifting the (N + 2) th sheet and thereafter, the transfer short P (TS) pitches can be converted into a large number of transfer short P (TS) pitches. Naturally, the above conversion is performed by the abrupt short pitch P (A
It is also effective for S).

FIG. 11 shows how the air conditioning unit is controlled in the case of handling paper jams and short pitches.
In FIG. 11A, a signal for closing the solenoid valve 69 of the intake passage 66 of the air conditioning unit 60 is immediately input to the controller 61 of the air conditioning unit 60 when the jam occurrence signal from the take-out pitch detection sensor 56 or the like is input at t = t3. Is output from the control device 61, and the solenoid valve 69 is closed. By such control, the negative pressure in the chamber 22 is immediately released when a paper jam occurs. By performing such jam countermeasure control, unnecessary suction can be stopped.

In FIG. 11B, when an arbitrary long pitch occurs, before the rotor suction hole 28 passes through the chamber hole 45 (before the next sheet is taken out), the chamber 2 is ejected.
Timing t4 at which the negative pressure in 2 is reduced (turned off)
Then, a signal for closing the electromagnetic valve 69 of the intake passage 66 of the air conditioning unit 60 is input from the control device 61 to the electromagnetic valve 69. Then, a signal for opening the solenoid valve 69 of the intake passage 66 of the air conditioning unit 60 is input from the control device 61 to the solenoid valve 69 at a timing t5 at which the rotor suction hole 28 finishes passing through the chamber hole 45 after t0 (s). To be done.

By such control, it is possible to prevent the short pitch extraction after the arbitrary long pitch extraction. Further, by controlling the negative pressure value in the chamber 22 to a predetermined value, the transfer short pitch P (TS) can be controlled so as to be taken out (not shown). Similarly, by detecting the position of the next sheet to be taken out, the abrupt short pitch P is detected.
Predicting (AS), transfer long pitch P
(TL) Take out or transfer short pitch P
It is also possible to control so as to convert to (TS).

[0058]

As described above, according to the present invention, it is possible to provide a paper sheet take-out apparatus and a paper sheet inspection apparatus which have a low noise and a small take-out pitch error.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram for explaining a schematic configuration of a paper sheet inspection apparatus of the present invention.

FIG. 2 is a schematic diagram of a paper sheet takeout device according to the present invention.

FIG. 3 is a schematic configuration diagram of a paper sheet takeout device according to the present invention.

FIG. 4 is a schematic configuration diagram of an air conditioning unit and a control device relating to a main part of the paper sheet takeout device of the present invention.

FIG. 5 is a schematic diagram showing how an air conditioning unit is controlled, which is a main part of the paper sheet takeout device of the present invention.

FIG. 6 is a schematic diagram of an initial short pitch.

FIG. 7 is a schematic diagram showing a state of a short pitch generation pattern.

FIG. 8 is a schematic view showing another aspect of the short pitch generation pattern.

FIG. 9 is a schematic diagram showing a state of short pitch conversion related to a main part of the paper sheet takeout device of the present invention.

FIG. 10 is a schematic diagram showing another aspect of short pitch conversion related to the main part of the paper sheet take-out device of the present invention.

FIG. 11 is a schematic diagram showing another mode of control of the air conditioning unit relating to the main part of the paper sheet takeout device of the present invention.

FIG. 12 is a schematic view of a conventional paper sheet takeout device.

FIG. 13 is a schematic configuration diagram of a conventional paper sheet takeout device.

[Explanation of symbols]

 1 paper sheet 2 take-out section (take-out apparatus) 3 conveying section (conveying apparatus) 4 detecting section (inspecting apparatus) 5 sorting section (sorting apparatus) 6 stacking section 10 paper feeding apparatus 11 take-out apparatus 12 conveying path 13 2 sheet pick-up prevention apparatus 21 take-out rotor (rotor) 22 chamber 28 rotor suction hole 45 chamber hole 46 pressing force detection sensor 51 rotor rotation speed and suction hole position detection sensor 55 separation state detection sensor 56 take-out pitch detection sensor 57 photoelectric sensor 60 air conditioning unit 61 control device 65 Intake path 66 Exhaust path 67 Vacuum pump 68 Compressor 69, 70 Solenoid valve

Claims (10)

[Claims] 1. A cylindrical chamber, a chamber hole penetrating from the outer surface of the chamber to the inside, suction means for sucking the inside of the chamber, and a minute gap between the outer surface of the chamber and the chamber. And a hollow rotor rotatably arranged concentrically, and formed so as to penetrate from the rotor surface to the inside, and in cooperation with the chamber hole, sucks and takes out the paper sheet by the suction force of the suction means. In a chamber for sucking the inside of the chamber by the suction means at a timing when the chamber hole and the rotor suction hole are overlapped with each other and a suction force for the sheet can be generated. A paper sheet take-out device comprising a control means for controlling the suction means so that the force is exerted as a force having a sufficient magnitude for sucking the paper sheet. 2. A cylindrical chamber, a chamber hole penetrating from the outer surface of the chamber to the inside thereof, suction means for sucking the inside of the chamber, and a minute gap with the outer surface of the chamber. And a hollow rotor rotatably arranged concentrically, and formed so as to penetrate from the rotor surface to the inside, and in cooperation with the chamber hole, sucks and takes out the paper sheet by the suction force of the suction means. In a paper sheet take-out device having a rotor suction hole for, after preparation for taking out the paper sheet by the rotor is completed,
A paper sheet take-out device comprising a control means for controlling the suction means so as to start suction inside the chamber by the suction means. 3. A chamber having a cylindrical shape, a chamber hole penetrating from the outer surface of the chamber to the inside, a suction means for sucking the inside of the chamber, and a minute gap with the outer surface of the chamber. And a hollow rotor rotatably arranged concentrically, and formed so as to penetrate from the rotor surface to the inside, and in cooperation with the chamber hole, sucks and takes out the paper sheet by the suction force of the suction means. In a paper sheet take-out device provided with a rotor suction hole for, in the case where inconvenience occurs in taking out the paper sheet by the rotor, the suction means is configured to stop the suction inside the chamber by the suction means. A paper sheet take-out device characterized by comprising control means for controlling. 4. A paper sheet take-out device for taking out stacked paper sheets one by one, wherein the take-out pitch between the paper sheets is
When it is predicted that the short pitch will be taken out as a short pitch that is shorter than the reference pitch by a predetermined value or more, the paper sheet that is expected to be the short pitch is transferred / long pitch longer than the reference pitch by a predetermined value or more. The paper sheet is characterized in that the pitch is converted so as to be taken out, or the transfer short pitch is shorter than the reference pitch and longer than the short pitch by a predetermined value or more, and then taken out. Kind of take-out device. 5. The paper sheet take-out device according to claim 1, wherein the control means controls the suction means based on a signal of a sensor that detects a rotational position of the rotor suction hole. 6. A paper feeding device capable of stacking and stacking the paper sheets, a pressing means for pressing the paper feeding devices against the rotor, and a pressing force detecting means for detecting a pressing force by the pressing means.
The control means further comprises a separating means for separating the sheets stacked on the sheet feeding device, and a separation state detecting means for detecting a separation state of the sheets by the separating means, wherein the control means is the pressing force detecting means. 3. The paper sheet take-out device according to claim 2, wherein the suction means is controlled based on an output signal of the loosening state detection means. 7. A case in which a pitch detecting means for detecting a take-out pitch between the paper sheets is further provided, and the paper sheet taken out at a long pitch longer than a reference pitch is detected by the pitch detecting means. In addition, it is determined that the next paper sheet to be taken out will be short-pitch take-out, and after the take-out of the paper sheet having the short pitch is converted to the transfer long pitch or the transfer short pitch, The paper sheet takeout device according to claim 4, wherein the paper sheet takeout device is taken out. 8. A take-out device for sequentially taking out the stacked paper sheets, a conveying device for conveying the taken-out paper leaves, and an inspection device for performing a predetermined inspection on the paper sheets. In the paper sheet inspection apparatus provided with a sorting device for sorting the paper sheet after the inspection based on a predetermined condition, the take-out device includes a cylindrical chamber and an inner surface from an outer surface of the chamber. A chamber hole formed through the
Suction means for sucking the inside of the chamber, a hollow rotor rotatably arranged concentrically with an outer surface of the chamber and having a minute gap, and formed to penetrate from the rotor surface to the inside, In cooperation with the chamber hole, the rotor suction hole for sucking and taking out the paper sheet by the suction force of the suction means overlaps with the chamber hole and the rotor suction hole, so that the suction force of the paper sheet can be generated. And a control device for controlling the suction means so that the suction force inside the chamber by the suction means is exerted as a force of a sufficient magnitude for sucking the paper sheet at a timing. Leaf inspection device. 9. A take-out device for taking out the stacked paper sheets in sequence, a carrying device for carrying the taken-out paper leaves, and an inspection device for performing a predetermined inspection on the paper sheets. In the paper sheet inspection apparatus provided with a sorting device for sorting the paper sheet after the inspection based on a predetermined condition, the take-out device includes a cylindrical chamber and an inner surface from an outer surface of the chamber. A chamber hole formed through the
Suction means for sucking the inside of the chamber, a hollow rotor rotatably arranged concentrically with an outer surface of the chamber and having a minute gap, and formed to penetrate from the rotor surface to the inside, After the rotor suction hole for sucking and taking out the paper sheet by the suction force of the suction means in cooperation with the chamber hole and the preparation for taking out the paper sheet by the rotor are prepared, the inside of the chamber by the suction means A paper sheet inspection apparatus comprising: a control unit that controls the suction unit to start suction. 10. A paper sheet inspection apparatus for sequentially taking out stacked paper sheets, performing a predetermined inspection on these paper sheets, and classifying the paper sheets after the inspection based on predetermined conditions, When it is predicted that the paper sheet and the paper sheet take-out pitch are taken out as a short pitch that is shorter than a reference pitch by a predetermined value or more, the paper sheet taken out to be the short pitch is taken as the reference Convert the pitch so that it becomes a transfer long pitch longer than the pitch by a predetermined value or more, or take it out so that the transfer short pitch is shorter than the reference pitch and longer than the short pitch by a predetermined value or more. A paper sheet inspection device characterized by being taken out after that.