JP2549321B2 - Sheet counting machine - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet counting machine for counting sheets such as banknotes, and more particularly, to a sheet counting machine that projects onto one end surface of a rotatable rotary cylinder. A plurality of rotatable suction tubes formed is provided, and by applying a vacuum pressure to the suction tubes, a sheet such as a bill held by the holding means is
The present invention relates to a sheet counter that sucks, turns, and counts sheets one by one, and has a simple structure and is capable of taking out a predetermined number of sheet bundles.

Prior art British Patent Publication No. 2125997, on one end surface of the rotary cylinder, around the axis of the rotary cylinder, at equal angles to each other,
A bill held by the holding means by equipping the rotatable tube with a plurality of rotatable suction tubes formed to project at equal distances from the axis of the rotary cylinder and having a suction port. Discloses a sheet counter for sucking and counting the sheets one by one. In this sheet counter, the shaft of the rotary cylinder is formed hollow, and a vacuum pressure is applied to the hollow shaft by a vacuum pump, and the shaft is positioned within a predetermined area facing the sheet held by the holding means. Only the inside of the suction tube communicating with the inside of the hollow shaft of the rotary cylinder sucks the sheet held by the holding means by vacuum pressure, and rotates the rotary cylinder and the suction tube to remove the sucked sheet. Then, as the rotating cylinder rotates, the adjacent suction pipe that reaches a predetermined area facing the sheet held by the holding means sucks the next sheet and turns the sheet one after another. The number of sheets is counted by sucking and flipping the sheets one by one, and detecting the pressure change in the hollow shaft of the rotary cylinder caused by the suction of the sheets.

In such a sheet counter, a predetermined number of sheets,
It is generally configured so that, when counted, the predetermined number of sheet bundles can be separated from the uncounted sheets held in the holding means and taken out.

In this way, in order to separate the counted number of sheets from the uncounted sheets, conventionally, the predetermined number of sheets are scraped off by the suction port of the suction tube, and then the separation member is moved to the next stage. The next sheet is prevented from being turned over by the suction port of the next suction tube by pressing it against the surface of the sheet, and a predetermined number of sheet bundles are taken out.

However, in this way, when the separation member is pressed against the surface of the next sheet to forcibly prevent the next sheet from being turned over by the suction port of the suction tube, the next sheet is Since the sheet has already been sucked into the suction port of the suction tube, there has been a problem that the sheet is cut or the surface of the sheet is scratched.

Therefore, Japanese Patent Laid-Open No. 2-19991 discloses a sheet counter having such a structure in which a plurality of magnetic pieces are attached to the periphery of a rotary cylinder, and the magnetic sensor detects the magnetic pieces to detect the position of the rotary cylinder. Then, the next sheet of the predetermined number of sheets is sucked by the suction port of the suction tube, and when the counting is completed, the supply of the vacuum pressure is stopped, and further, the rotary cylinder is reversed to the suction port of the suction tube. It proposes a sheet counter equipped with a sheet bundle separating device capable of separating a predetermined number of sheet bundles by taking back the sucked next sheet into the holding means and taking it out.

Problems to be Solved by the Invention In such a sheet counter, there is no risk that the sheet will be cut or the surface of the sheet will be damaged, but by attaching a plurality of magnetic pieces around the rotary cylinder, However, it is necessary to provide a magnetic sensor for detecting these magnetic pieces, which causes a problem that the structure becomes complicated.

It is an object of the present invention to provide a sheet counter that has a simple structure and can reliably separate and take out a predetermined number of sheet bundles.

SUMMARY OF THE INVENTION An object of the present invention is to control a sheet holder for holding sheets to be counted, a rotary cylinder rotatable around a hollow shaft, a motor means for rotating the rotary cylinder, and a drive of the motor means. And at least one suction port formed on one end surface of the rotary cylinder so as to project around the hollow shaft at equal angles to each other and at an equal distance from the hollow shaft. A plurality of suction tubes rotatable in synchronism with the rotating cylinder, a vacuum pump means for supplying a vacuum pressure to the hollow shaft, a vacuum pump control means for controlling the driving of the vacuum pump means, and a plurality of the plurality of suction tubes. Among the suction pipes, only the suction pipe located in a predetermined area facing the sheet held by the sheet holder is connected to the inside of the hollow shaft, and the suction means and the vacuum pump. The pressure held by the sheet holder is sucked by the vacuum pressure supplied by the pulling means, and the pressure detecting means detects the pressure change in the hollow shaft caused by turning the sheet, and the pressure detecting means detects the pressure change. Based on the pressure change in the hollow shaft, counting means for counting the number of sheets, sheet number setting means for setting the set number N ₀ of sheets to be separated and collected, and the output of the counting means It is determined whether or not the counted number of sheets coincides with the set number of sheets N ₀ set by the sheet number setting means, and when it is determined that a coincidence signal is output to the motor control means. In a sheet counter equipped with a comparison means for stopping the motor means, after receiving the coincidence signal output from the comparison means, the inside of the hollow shaft detected by the pressure detection means Based on the force, N ₀ th sheet is 1 to not overlap on the sheet bundle composed of (N ₀ -1) th sheet, to form a N ₀ sheets bundle, then reverse the rotation cylinder also be, the suction tube has been aspirated N ₀ th sheet, the free positions by sucking the N ₀ th sheet, the timing of stopping the rotary cylinder, the motor control unit A first brake signal output means for outputting a first brake signal to forcibly stop the rotary cylinder, and a first brake signal input to stop the rotary cylinder, and then to the motor control means, A reverse rotation signal is output to reverse the rotation of the rotary cylinder, and based on a pressure change in the hollow shaft detected by the pressure detection means, a reverse rotation stop signal is output to the motor control means at a predetermined timing,
The reverse rotation of the rotary cylinder is stopped, and a drive stop signal is output to the vacuum pump control means to stop the supply of vacuum pressure into the hollow shaft by the vacuum pump means, and the plurality of suction tubes Of the at least one suction port of one suction pipe, a second brake signal is sent to the motor control means at a timing at which the rotary cylinder stops at a position directly facing the surface of the sheet holder. This is achieved by a sheet counter having a second brake signal output means for outputting.

In a preferred embodiment of the present invention, the sheet counter further monitors the pressure in the hollow shaft detected by the pressure detection means, and after the counting means starts counting the number of sheets, the pressure in the hollow shaft is When the count is increased to a predetermined value or more, a counting end signal is output to the first brake signal output means, and the first brake signal output means does not output the first brake signal, and the first brake signal is output. The output means is provided with a count end signal output means for causing the vacuum pump control means to output a drive stop signal and for starting monitoring of the pressure in the hollow shaft input from the pressure detection means. When the signal output means receives the count end signal from the count end signal output means, it is based on the pressure change in the hollow shaft detected by the pressure detection means. , A third brake signal is output to the motor control means at a predetermined timing, and the motor means causes the rotary cylinder to suck the at least one suction pipe of one suction pipe among a plurality of suction pipes having an edge cut. It is configured to forcibly stop all of the mouths at positions facing the surface of the seat holder.

Effect of the Invention According to the present invention, in order to count the number of banknotes, the set number N ₀ of sheets is set to 1 to (N) based on the pressure in the hollow shaft of the rotary cylinder that has been conventionally monitored. ₀ -1)
Overlap on the sheet bundle of th sheet, to form a N ₀ sheets bundle, then be reversed to the rotating cylinder, suction pipe which has been aspirated N ₀ th sheet, N ₀ Like Since the first brake signal output means for outputting the first brake signal for forcibly stopping the rotary cylinder is provided at the position where the rotary cylinder is stopped at a position where the eye sheet is not sucked,
It is possible to reliably separate and take out the set number N ₀ of sheets, and after the rotating cylinder stops, output a reverse rotation signal to reverse the rotation cylinder and similarly rotate the inside of the hollow shaft. Based on the pressure change, the reverse rotation stop signal is output at a predetermined timing to stop the reverse rotation of the rotary cylinder, and the drive stop signal is output to supply the vacuum pressure to the hollow shaft by the vacuum pump means. While stopping, the second brake signal is output at the timing when the rotary cylinder stops at a position where at least one suction port of one suction pipe of the plurality of suction pipes faces the surface of the sheet holder. Since the second brake signal output means is provided, the suction port of one suction tube is always faced to the surface of the suction tube side sheet set in the sheet holder at the start of the next counting operation. And Therefore, surely the sheet, and suction, it is possible to take turn, accurately, it is possible to provide a sheet counting machine which is capable of counting the sheets.

According to a preferred embodiment of the present invention, when the number of sheets equal to the set number N ₀ is set in the sheet holder, there is no sheet that needs to be returned to the sheet holder, and the rotating cylinder is reversed. Since it is not necessary, after the N _0th sheet has been sucked by the suction port of the suction tube, there is no sheet to be sucked in the sheet holder, and the pressure in the hollow shaft causes the counting means to count the sheets. Utilizing the fact that the pressure rises to a value larger than the pressure detected at the time, when the pressure in the hollow shaft rises above a predetermined value, a counting end signal,
The first brake signal output means outputs the drive stop signal to the vacuum pump control means without causing the first brake signal output means to output the first brake signal. , Counting end signal output means for starting monitoring of the pressure in the hollow shaft input from the pressure detecting means is provided, and when the first brake signal output means receives the counting end signal from the counting end signal output means, Based on the pressure change in the hollow shaft detected by the detection means, a third brake signal is output at a predetermined timing to cause the rotary cylinder to suck the at least one suction pipe of one of the plurality of suction pipes. By configuring all of the mouths to be forced to stop at the position directly facing the surface of the seat holder, the seat must be seated at the start of the next counting operation. Since it is guaranteed that the suction port of one suction tube faces the surface of the sheet on the side of the suction tube set in the ruder, the sheet can be surely sucked and turned over. A sheet counter capable of counting sheets with high accuracy can be provided.

Examples Hereinafter, with reference to the accompanying drawings, examples of the present invention,
Add a detailed description.

FIG. 1 is a schematic plan view of a bill counting machine according to an embodiment of the present invention, and FIG. 2 is a drawing for explaining a suction mechanism of the bill counting machine according to the embodiment of the present invention.

Referring to FIG. 1 and FIG. 2, a bill counting machine 1 according to an embodiment of the present invention has a placing plate 2a on which a bundle of bills B is placed.
And a holding plate for holding a bundle of banknotes B in cooperation with the placing plate 2a.
It has a holder 2 with 2b. Holder 2 is
In the horizontal plane, about the axis 3, it is configured to be swingable between a standby position shown by a solid line in FIG. 1 and a counting position shown by a one-dot chain line, and when counting the bills B,
When the bills B are not counted at the counting position, they are held at the standby positions, respectively.

The bill counting machine 1 is further provided with a rotatable cylinder 5 around the shaft 4, and the rotatable cylinder 5 is provided on one end surface thereof.
It is provided with five rotatable suction tubes 6 arranged so as to project around the shaft 4 at intervals of 72 ° and at an equal distance from the shaft 4. One suction port 7 is formed in a part of each suction pipe 6. When a bundle of banknotes B is stored in the holder 2 or the start switch 9 is operated, the holder 2 is swung to move to the counting position and counting of the banknotes B is started. At this point, the suction port 7 of one of the plurality of suction pipes 6, the uppermost banknote B of the bundle of banknotes B (in this specification, the banknote B located on the suction port 7 side is the uppermost bank It is defined as bill B.)
And it is located so that it may contact. In FIG. 1, 6a is a cap of the suction tube 6.

As shown in FIG. 1 and FIG. 2, the rotary cylinder 5 is
The motor 8 can rotate about the shaft 4 in the counterclockwise direction at the time of normal rotation, and each suction pipe 6 can rotate its shaft 10
By a gear mechanism (not shown) provided in the lower portion of the rotary cylinder 5 when the rotary cylinder 5 rotates in the forward direction as the rotary cylinder 5 rotates,
It is configured to be rotatable in the clockwise direction. Therefore, when the rotary cylinder 5 rotates in the normal direction, the suction pipes 6 revolve around the shaft 4 in the counterclockwise direction while rotating in the clockwise direction.

The shaft 4 of the rotary cylinder 5 and the shaft 10 of each suction pipe 6 are formed in a hollow shape, and the inside of the shaft 4 is connected to a vacuum pump 12 by a suction passage 11 and a vacuum pump 12 by a pump motor 13. Is driven, the vacuum pressure is
It is always added. Also, each suction tube 6
The inside of the shaft 10 can be communicated with the inside of the shaft 4 by a communication passage 14, and the center of each suction pipe 6 in the communication passage 14 is defined by center lines x _a and x _{b in} FIG. Only when it is located in the suction area S facing the bill B to be imaged,
The inside of the shaft 10 of each suction pipe 6 is formed so as to communicate with the inside of the shaft 4 via a communication passage 14, and a vacuum pressure can be applied to the inside of the shaft 10. From the vacuum pump 12, the suction passage 11 is formed. The suction port 7 of the suction pipe 6 located at the position directly facing the surface of the uppermost banknote B by the vacuum pressure applied through the shaft 4, the communication passage 14 and the shaft 10 makes one banknote B One by one, it is configured to be able to suck. Here, the communication path 14 is formed so that the angle formed by the center lines x _a and x _b is smaller than 72 °, and at the same time, two or more suction pipes 6 are not located in the suction region S. It is like this.

In FIG. 2, 15 is a holder motor for swinging the holder 2 around the shaft 3 between the standby position and the counting position, and 16 and 17 are a light emitter and a light receiver, respectively. Therefore, the light emitter 16 irradiates the surface of the uppermost banknote B before being sucked with light, and the reflected light is received by the light receiver 17, and the denomination of the banknote B Discrimination such as false is made. Furthermore, a pressure sensor 18 is provided which detects the pressure in the suction passage 11, and thus the pressure in the hollow shaft 4.

FIG. 3 is a block diagram of a bill bundle separating device for separating a bundle of a predetermined number of bills B provided in the bill counting machine according to the embodiment of the present invention.

In FIG. 3, the bill bundle separating device outputs a start signal when the start switch 9 is operated or when the bill sensor 20 detects that the bill B is stored in the holder 2. Start signal output means 21,
Holder position detecting means 22 for detecting whether the holder 2 is in the standby position or the counting position and outputting a holder position detection signal, a holder motor control means 23 for controlling the drive of the holder motor 15, a pump The detected signals of the pressure in the hollow shaft 4 and the suction passage 11 detected by the pump motor control means 24 for controlling the drive of the motor 13 and the pressure sensor 18 are digitized by A / D conversion. Pressure signal output means 25 for outputting a pressure signal, the absolute value of the rate of change of the pressure signal level output from the pressure signal output means 25 is a predetermined value or more, and when the pressure signal level reaches a predetermined level or less, When the absolute value of the rate of change of the pressure signal level is less than the predetermined value,
While outputting the positioning signal, the counting start signal is output when the absolute value of the rate of change of the pressure signal level becomes equal to or higher than a predetermined value and the pressure signal level reaches or lower than the predetermined level after the positioning signal is output. When a positioning signal is input from the counting start signal output means 26 and the counting start signal output means 26, the motor control means 27 that controls the drive of the motor 8 that rotates the rotary cylinder 5 causes the rotary cylinder 5 to reversely rotate. , The counter start signal is output from the positioning control means 28 and the count start signal output means 26, which outputs the reverse rotation signal and outputs the reverse rotation stop signal when the absolute value of the change rate of the pressure signal level becomes equal to or more than a predetermined value. Rotating cylinder 5
On the other hand, on the other hand, when a reverse rotation signal is input from the positioning control means 28, the rotary cylinder 5 is rotated reversely.
After the count start signal is input from the motor control means 27 that drives the motor 8 and the count start signal output means 26, the bill B is sucked and turned based on the change in the pressure signal level input from the pressure signal output means 25. It is composed of a counting unit 29 for detecting the take-out, outputting a bill detection signal, counting the number of bills B and outputting the counting signal, a keyboard for separating and setting a predetermined number N ₀ to be taken out, and the like. Based on the bill number setting means 30 operated by a person, the output of the bill number setting means 30 and the counting signal input from the counting means 29, the number N of the counted bills B becomes equal to the set number N _0. When the judgment is made, the coincidence signal is outputted to the motor control means 27 to stop the drive of the motor 8, and based on the banknote detection signal inputted from the counting means 29, the (N ₀ +1) th sheet of When it is determined that the coin B is detected, the first brake signal is output to the motor control means 27 and the second brake signal output means 32, and the motor 8 forcibly stops the rotation of the rotary cylinder 5. , A count that causes the second brake signal output means 32 to start monitoring the pressure signal output from the pressure signal output means 25, and causes the counting means 29 to stop counting the (N ₀ +1) th banknote B Stop signal is output, while count end signal output means
When the count end signal is input from 34, the pump stop signal is output to the pump motor control means 24 without outputting the first brake signal and the count stop signal to drive the vacuum pump 12 by the pump motor 13. When the pressure signal output means 25 starts monitoring the pressure signal while stopping, the pump motor 13 stops, the vacuum pressure supply is stopped, and the motor 8 that rotates the rotary cylinder 5 stops. Regardless, the rotary cylinder 5 detects the position of each suction pipe 6 based on the change in the pressure signal level caused by continuing the rotation due to inertia, and the motor control means 27 outputs the third brake signal at a predetermined timing. Output to
When the motor 8 receives the first brake signal from the first brake signal output means 33 and the first brake signal output means 33 in which the rotation of the rotary cylinder 5 is forcibly stopped, it is output from the pressure signal output means 25. The monitoring of the pressure signal is started, the reverse rotation signal is output to the motor control means 27 at a predetermined timing to reverse the rotation of the rotary cylinder 5, and then the reverse rotation stop signal is sent to the motor control means 27 at a predetermined timing. Output
The reverse rotation of the rotary cylinder 5 is stopped and the pump control means
A pump stop signal is output to 24 to stop the driving of the vacuum pump 12 by the pump motor 13, the pump motor 13 is stopped, and the supply of vacuum pressure is stopped. Despite the fact that the rotating motor 8 has stopped, the rotary cylinder 5 detects the position of each suction pipe 6 based on the change in the pressure signal level caused by the continuous rotation of the motor due to the inertia, and the motor is rotated at a predetermined timing. A second brake signal output means 32 for outputting a second brake signal to the control means 27, and a count end signal output for outputting a count end signal when the pressure signal level becomes equal to or higher than a predetermined level after the counting of the bill B is started. The bills B counted according to the counting signals output from the means 34 and the counting means 29.
In addition to displaying the number of sheets, the display means 35 displays the completion of the counting operation when the counting end signal is input from the counting end signal output means 34.

The banknote counter 1 according to the embodiment of the present invention configured as described above counts the banknotes B as follows.

First, the number N of banknotes B to be separated and taken out
_The operator inputs ₀ into the bill number setting means 30.

Next, when the bundle of bills B is set in the holder 2, the bill sensor 20 outputs a bill setting signal to the start signal output means 21. Start signal output means 21
Outputs a start signal to the holder motor control means 23 and the pump motor control means 24 when it receives a bill setting signal or when the start switch 9 is operated.

The holder motor control means 23 is a start signal output means.
When the start signal is input from 21 and the holder 2 is determined to be in the standby position based on the holder position detection signal input from the holder position detection means 22, the holder 2 is input from the holder position detection means 22. The holder motor 15 is driven to position the holder 2 at the counting position until it is determined that the holder 2 has reached the counting position based on the generated holder position detection signal.

When the start signal is input from the start signal output means 21, the pump motor control means 24 drives the pump motor 13 to supply the vacuum pressure to the suction passage 11 and the shaft 4 of the rotary cylinder 5. To do. As a result, the pressure inside the suction passage 11 and the hollow shaft 4 starts to decrease, the pressure is detected by the pressure sensor 18, and the pressure detection signal is output to the pressure signal output means 25. The pressure signal output means 25 performs A / D conversion of the pressure detection signal input from the pressure sensor 18, and digitizes the pressure signal, counting start signal output means 26, positioning control means 28, counting means 29, Counting end signal output means 34, first brake signal output means 30 and second
It outputs to the brake signal output means 32, respectively.

The counting start signal output means 26, when the pressure signal is input from the pressure signal output means 25 and when it is determined that the holder 2 is at the counting position based on the holder position detection signal input from the holder position detection means 22, Start monitoring changes in pressure signal level.

FIGS. 4 and 5 are graphs showing pressure curves of the pressure in the suction passage 11 and the hollow shaft 4 detected by the pressure sensor 18, respectively. FIG. 4 shows that the number N of banknotes B set in the holder 2 is (N ₀ +2) or more, and the counting operation of the banknotes B is such that the suction port 7 of the suction tube 6 has the highest banknote B. 5 shows an example of a pressure curve when it is started in a state of directly facing the surface of, and FIG. 5 shows that the number N of banknotes B set in the holder 2 is (N ₀ +1),
Moreover, the example of the pressure curve when the counting of the bills B is started in a state where the suction port 7 of any suction pipe 6 does not directly face the surface of the uppermost bill B is shown.

As shown in FIG. 4, when the start signal is received from the start signal output means 21, the pump motor control means 24
Drives the pump motor 13, and by the vacuum pump 12,
Vacuum pressure is supplied to the suction passage 11 and the hollow shaft 4.
When the suction port 7 of the suction pipe 6 is in a position directly facing the uppermost banknote B, the suction pipe 6 is located in the suction area S,
Therefore, the hollow shaft 7 of the suction pipe 6 is connected through the communication passage 14.
Since the inside of is communicated with the inside of the shaft 4, the vacuum pressure acts on the surface of the uppermost banknote B of the bundle of banknotes B, the uppermost banknote B is sucked by the suction port 7 of the suction pipe 6, and the suction port 7 As a result, the pressure in the suction passage 11 and the hollow shaft 4 detected by the pressure sensor 18 decreases with time at a substantially constant rate of change.

Then, it is input from the pressure signal output means 25 that the pressure in the suction passage 11 and the hollow shaft 4 has dropped to a pressure sufficient to suck and flip the bill B, for example, about -620 mmHg. When detected based on the level of the pressure signal thus generated, the counting start signal output means 26 outputs a counting start signal to the motor control means 27 that controls the drive of the motor 8 that rotates the rotary cylinder 5. As a result, by the motor 8,
In FIG. 1, the rotary cylinder 5 is normally rotated in the counterclockwise direction at a high speed around the shaft 4, and a gear mechanism provided below the shaft 7 of the suction pipe 6 as the rotary cylinder 5 rotates. As a result, the suction tube 6 is rotated clockwise, and the banknote B held in the holder 2 is flipped off by the suction port 7 of the suction tube 6. In FIG. 4, A indicates the timing at which the counting start signal is output.

On the other hand, when the suction port 7 of the suction pipe 6 is not in a position directly facing the surface of the uppermost banknote B and the counting of banknotes B is started, the pump motor 13 is driven to drive the vacuum pump.
Even if vacuum pressure is supplied to the suction passage 11 and the hollow shaft 4 by the bill 12, the bill B is not sucked by the suction port 7 of the suction pipe 6, so that the suction passage 11 and the hollow portion 11 detected by the pressure sensor 18 As shown in FIG. 5, the pressure in the shaft 4 of FIG. 4 only gradually decreases, and the absolute value of the pressure change rate is smaller than that in FIG. In such cases,
First, since the suction port 7 of the suction pipe 6 needs to be directly faced to the surface of the uppermost bill B, the counting start signal output means 26 outputs a positioning signal to the positioning control means 28. In FIG. 5, B indicates the timing when the positioning signal is output.

When the positioning control means 28 receives the positioning signal from the count start signal output means 26, the motor control means 27
Then, a reverse rotation signal is output to the motor 8 to rotate the rotary cylinder 5
In FIG. 1, the shaft 4 is rotated clockwise at a low speed and reversely so that the suction port 7 of the suction pipe 6 faces the surface of the uppermost banknote B and is input from the pressure signal output means 25. Start monitoring the pressure signal. And the fifth
As shown in the figure, when the absolute value of the rate of change of the pressure signal input from the pressure signal output means 25 exceeds a predetermined value, a reverse rotation stop signal is output to the motor control means 27, and the rotary cylinder Stop the rotation of 5. During this period, the counting start signal output means 26 also monitors the pressure signal input from the pressure signal output means 25, and after detecting that the absolute value of the change rate of the pressure signal has become equal to or greater than a predetermined value, the bill Sufficient pressure to turn B off, for example, up to about -620 mmHg,
When it is detected that the pressure in the suction passage 11 and the hollow shaft 4 has dropped based on the level of the pressure signal input from the pressure signal output means 25, the counting start signal output means 26
Outputs a counting start signal to the motor control means 27 that controls the drive of the motor 8 that rotates the rotary cylinder 5. as a result,
The rotary cylinder 5 is moved by the motor 8 in FIG.
Around it, it is rotated in the counterclockwise direction at high speed and in the forward direction, and the rotary cylinder
Along with the rotation of the suction tube 6, the suction mechanism is provided in the lower portion of the shaft 7 of the suction tube 6, the suction tube 6 is rotated clockwise, and the bill B held in the holder 2 is sucked into the suction port of the suction tube 6. It is sucked and turned off by 7. In FIG. 5, C indicates the timing at which the reverse rotation stop signal is output.

In this way, one bill B is sucked by the suction port 7 of the suction pipe 6 that revolves around the shaft 4 in the counterclockwise direction while rotating in the clockwise direction. Suction tube 6 sucking bill B as it rotates
Moves out of the suction area S defined by the center lines x _a and x _b , and the next suction tube 6 moves into the suction area S defined by the center lines x _a and x _b facing the bill B. Will come. However, until the suction port 7 of the next suction pipe 6 faces the surface of the uppermost bill B, the bill B is not sucked by the suction pipe 6, so the suction passage 11 detected by the pressure sensor 18 is generated.
And the pressure in the hollow shaft 4 rises, and the bill B is sucked by the suction port 7 of the next suction pipe 6 only when the suction port 7 of the next suction pipe 6 faces the surface of the uppermost bill B. As a result, the pressure in the suction passage 11 and the hollow shaft 4 detected by the pressure sensor 18 decreases. Then, with the rotation of the rotary cylinder 5, the suction tube 6 that has sucked the bill B moves the bill B from the holder 2 to the outside of the suction region while turning the bill B from the holder 2.
Again, the next suction pipe 6 moves into the suction area S,
Similarly, the suction passage 11 detected by the pressure sensor 18
The pressure in the hollow shaft 4 first rises, the suction port 7 of the suction pipe 6 reaches a position directly facing the surface of the uppermost bill B, and the bill B is sucked until the suction passage 11 and the hollow. The pressure in the shaft 4 of the shaft decreases. In this way, as the rotary cylinder 5 rotates and the suction port 7 of the suction pipe 6 sucks one bill B and flips it, as shown in FIG. 4 and FIG. The pressure fluctuations in the suction passage 11 and the hollow shaft 4 repeatedly occur. In FIGS. 4 and 5,
The pressures in the suction passage 11 and the hollow shaft 4 when the second and subsequent bills B are printed are higher than when the first bill B is sucked, but this is short. At time intervals,
Since the banknote B is sucked and turned over by the suction port 7 of the suction tube 6 one after another, the pressure in the suction passage 11 is reduced by the vacuum pump 12 as much as when the first banknote B is sucked. This is because it cannot be done. In this way, the suction port 7 of the suction pipe 6 sucks one bill B,
The pressure in the suction passage 11 and the hollow shaft 4 detected by the pressure sensor 18 varies each time the tape is turned off. Counting means
Reference numeral 29 monitors the pressure signal output from the pressure signal output means 25, and when the rate of change of the pressure signal changes from minus to plus, one bill B is counted and the number of bills B is counted. Count. The counting means 29 outputs a count signal to the display means 35 every time the bill B is counted, and displays the count value of the bill B. In FIGS. 4 and 5, D
Indicates the range in which the bills B are counted.

Thus, as the rotary cylinder 5 rotates, the banknotes B are sucked one by one by the suction port 7 of the suction tube 6 one by one, turned over, and counted by the counting means 29.
When the comparing means 31 detects that the number N of sheets of the same number becomes equal to the set number N ₀ , the comparing means 31 sends a coincidence signal to the motor control means 27 and the first brake signal output means 33.
Output each.

FIG. 6 is an enlarged view of the pressure curve of FIG.
Shows the pressure curve after the number of counted sheets N approaches the set number N ₀ . In FIG. 6, E indicates the timing at which the coincidence signal is output.

When the motor control means 27 receives the coincidence signal from the comparison means 31, the motor control means 27 stops driving the motor 8, but the rotary cylinder 5
Due to inertia, the banknote B continues to rotate, and the next banknote B is sucked from the holder 2 by the suction port 7 of the next suction tube 6 and turned.

On the other hand, when the first brake signal output means 31 determines that the number N of the bills B that have been sucked and turned off is (N ₀ +1) based on the bill detection signal input from the counting means 29. , And outputs the first brake signal to the motor control means 27 and the second brake signal output means 32, respectively, and outputs the counting stop signal to the counting means 29. In FIG. 6, E indicates the timing at which the coincidence signal is output, and F indicates the timing at which the first brake signal and the counting stop signal are output.

FIG. 7 is a schematic plan view of the rotary cylinder 5 when the first brake signal and the counting stop signal are output from the first brake signal output means 33, and B _N0 is the N _0th banknote B, B _{N0 + 1}
Indicates the (N ₀ +1) th banknote B, and B _{N0 + 2} indicates the (N ₀ +2) th banknote B, respectively.

When the motor control means 27 receives the first brake signal from the first brake signal output means 33, the motor control means 27 simultaneously outputs the forward rotation signal and the reverse rotation signal to the motor 8 to forcibly stop the rotation of the rotary cylinder 5. Further, when receiving the counting stop signal, the counting means does not count the (N ₀ +1) th banknote B.

On the other hand, when the second brake signal output means 32 receives the first brake signal from the first brake signal output means 33, the second brake signal output means 32 starts monitoring the pressure signal output from the pressure signal output means 25.

In this way, the motor control means 27 outputs the forward rotation signal and the reverse rotation signal to the motor 8 at the same time.
It stops at the position shown in FIG. In this state, the N _0th banknote B is overlapped with the bundle of 1st to (N ₀ -1) th banknotes B, and a bundle of N _0th banknotes B is formed.

Here, the (N ₀ +1) th banknote B is not sucked by the suction tube 6 because the suction tube 6 that has sucked the banknote B has already moved to the outside of the suction area S, but ( N ₀ +
2) Since the suction pipe 6 that sucks the bill B is located in the suction area S, the pressures in the hollow shaft 4 and the suction passage 11 are maintained in a lowered state. There is.

After that, the second brake signal output means 32 outputs a reverse rotation signal to the motor control means 27 to drive the motor 8,
The rotary cylinder 5 is reversed. The timing at which the reverse rotation signal is output is empirically determined so that the second brake signal output means 32 outputs a predetermined time after the first brake signal is received from the first brake signal output means 33. It is set. In FIG. 6, G indicates the timing at which the second brake signal output means 32 outputs the reverse rotation signal.

Thus, the rotary cylinder 5, be reversed, (N ₀ +1) th bill B is already because they no longer attracted to the suction port 7 of the suction pipe 6, (N ₀ +1) th When the suction tube 6 that has sucked the bill B enters the suction area S, the air is
From the suction port 7, through the shaft 10 of the suction pipe 6, the communication passage 14 and the hollow shaft 4 into the suction passage 11, and inside the suction passage 11 and the hollow shaft 4 detected by the pressure sensor 18. Pressure rises. The second brake signal output means 32 monitors the pressure signal input from the pressure signal output means 25, and immediately after the pressure signal level starts rising, the motor control means 27
Then, a reverse rotation stop signal is output to the pump motor control means 24, and a pump stop signal is output to the pump motor control means 24 to stop the drive of the motor 8 and the pump motor 13. In FIG. 6, H
Indicates the timing at which the reverse brake stop signal and the pump stop signal are output from the second brake signal output means 32.

As a result, the suction passage 11 detected by the pressure sensor 18
While the pressure in the inner and hollow shafts 4 increases, the rotary cylinder 5 continues to rotate due to inertia.

The second brake signal output means 32 is a pressure signal output means 25.
The pressure signal input from the motor is monitored, and at a predetermined timing, the second brake signal is output to the motor control means 27 to cause the motor 8 to simultaneously output the forward rotation signal and the reverse rotation signal to rotate the rotary cylinder 5. Forcibly stop. This second
The timing at which the brake signal is output is such a timing that when the second brake signal is output, the suction port 7 of the suction pipe 6 that has sucked the (N ₀ +1) th banknote B is (N ₀ +
1) Return the second bill B into the holder 2 and (N ₀ +
1) Experimentally determined to stop at the surface of the first bill B, that is, at a position directly facing the surface of the mounting plate 2a of the holder 2, and stored in the second brake signal output means 32. Has been done. In FIG. 6, J indicates the timing at which the second brake signal is output.

As described above, the bundle of N ₀ banknotes B is separated,
This bundle of banknotes B is taken out from the banknote counter 1 by a known method. At the same time, the suction port 7 of one suction pipe 5
Is always stopped at a position directly facing the surface of the (N ₀ +1) th banknote B, which is the highest banknote B held in the holder 2, so at the start of the next counting operation, It is possible to surely suck the topmost bill B and turn it over. Thereafter, in the same manner, a bundle of N ₀ banknotes B is separated and taken out.

FIG. 9 is an enlarged view of the pressure curve of FIG.
Shows the pressure curve after the number of counted sheets N approaches the set number N ₀ . 6 shows the pressure curve when the number of banknotes B set in the holder 2 is (N ₀ +2) or more, but FIG. 9 shows the pressure curve set in the holder 2. The pressure curve is shown when the number of bills B is equal to (N ₀ +1).

Even in such a case, when the comparing means 31 determines that the counted number N of the banknotes B becomes equal to the set number N ₀ based on the counting signal from the counting means 29, the coincidence signal is output and the motor control means. The motor 8 is stopped by 27. Then, when the first brake signal output means 33 determines that the (N ₀ +1) th banknote B is detected based on the banknote detection signal input from the counting means 29, the first brake signal output means 33 outputs , The first brake signal is output. In FIG. 9, E shows the timing when the coincidence signal is output, and F shows the timing when the first brake signal and the counting / counting stop signal are output.

After that, as in the case of FIG. 6, a reverse rotation signal is output from the second brake signal output means 32, and the rotary cylinder 5 is
Although it is reversed, the (N ₀ +2) th banknote B is placed in the holder 2
Since it does not exist inside, the bill B is not inserted in the suction port 7 of any of the suction pipes 6 when the first brake signal is output.
Is not sucked, and therefore air is sucked from the suction port 7 of the suction pipe 6 in the suction region S by the shaft 10 of the suction pipe 6.
After passing through the communication passage 14 and the hollow shaft 4, the pressure in the suction passage 11 detected by the pressure sensor 18 and in the empty shaft 4 rises. However, the angle formed by the center lines x _a and x _b is set to a value smaller than the angle 72 ° formed by the adjacent suction pipes 6, so that when the rotary cylinder 5 is reversed, A situation occurs in which no suction pipe 6 is present, and as a result, the pressure in the suction passage 11 and the hollow shaft 4 decreases again. After that, when the suction tube 6 that has sucked the (N ₀ +1) th banknote B moves into the suction region S, air is again supplied from the suction port 7 to the shaft 10 of the suction tube 6.
Then, the pressure in the suction passage 11 and the hollow shaft 4 that has once decreased after flowing into the suction passage 11 through the hollow shaft 4 of the communication passage 14 rises again. The second brake signal output means 32 monitors the pressure signal input from the pressure signal output means 25 and detects that the once lowered pressures in the suction passage 11 and the hollow shaft 4 have started to rise. Immediately thereafter, the reverse rotation stop signal is sent to the motor control means 27, and the pump stop signal is sent to the pump motor control means 24.
Output. As a result, the motor 8 is stopped and
The pump motor 13 is stopped. In FIG. 9, G is
The reverse rotation signal shows the output timing, and H shows the reverse rotation stop signal and the pump motor stop signal output timing.

As a result, as in the case of FIG. 6, the pressures in the suction passage 11 and the hollow shaft 4 detected by the pressure sensor 18 rise, while the rotary cylinder 5 continues to rotate due to inertia.

The second brake signal output means 32 is a pressure signal output means 25.
The pressure signal input from the motor is monitored, and at a predetermined timing, the second brake signal is output to the motor control means 27 to cause the motor 8 to simultaneously output the forward rotation signal and the reverse rotation signal to rotate the rotary cylinder 5. Forcibly stop. This second
At the timing of outputting the brake signal, when the second brake signal is output, the suction port 7 of the suction pipe 6 that has sucked the (N ₀ +1) th banknote B into the holder 2, When the banknote B is present, it is experimentally determined to stop at the surface of the banknote B, that is, a position directly facing the surface of the mounting plate 2a of the holder 2, and the second brake signal output means 32 is provided. It is stored inside. In FIG. 9, J indicates the timing at which the second brake signal is output.

As described above, the bundle of N ₀ banknotes B is separated,
This bundle of banknotes B is taken out from the banknote counter by a known method. At the same time, the suction port 7 of one suction pipe 6
Always stops at the position directly facing the surface of the uppermost banknote B set in the holder 2 in the next counting operation, so that the banknote B can be reliably removed at the start of the next counting operation. It becomes possible to suck and turn it.

FIG. 10 is an enlarged view of the pressure curve when the number of bills B set in the holder 2 is equal to the set number N ₀ , and the count number N of the bills B approaches the set number N _0. The subsequent pressure curves are shown.

In FIG. 10, when the N _0th banknote B is sucked by the suction port 7 of the suction pipe 6 and turned over, the rate of change of the pressure signal input from the pressure signal output means 25 is from negative to positive. Then, the counting means 29 detects this and N ₀
The first bill B is counted. After that, since the bill B sucked by the suction pipe 6 is no longer present, the level of the pressure signal output from the pressure signal output means 25 is the bill B.
The level rises to a level higher than the maximum level detected in the area D where the counting was performed.

The counting end signal output means 34 monitors the pressure signal input from the pressure signal output means 25, and when the level of the pressure signal reaches or exceeds a predetermined level, the counting end signal is output to the first brake signal output means 33. To output the pump stop signal to the pump motor control means 24 without outputting the first brake signal and the count stop signal. As a result, the vacuum pump 12 is driven by the pump motor 13. When the count end signal is input, the first brake signal output means 33 starts monitoring the pressure signal input from the pressure signal output means 25. Counting end signal means 34
At the same time, also outputs the counting end signal to the comparing means 31, but the comparing means 31 is, until the counting end signal is input,
No signal is output when the match signal is output.

The motor 8 is stopped when the coincidence signal is input from the comparison means 31 to the motor control means 27.
1 continues to rotate counterclockwise around the shaft 4 in FIG. 1 due to the inertia even after the motor 8 is stopped,
The next suction pipe 6 moves into the suction area S and repeats. On the other hand,
When the pump stop signal is input to the pump motor control means 24, the drive of the pump motor 13 is stopped, and the supply of the vacuum pressure from the vacuum pump 12 to the suction passage 11 and the hollow shaft 4 is stopped. Since there is no bill B to be sucked by the suction port 7 of the next suction pipe 6, when the next suction pipe 6 enters the suction region S, the suction port 7 of the suction pipe 6 is sucked.
Air flows into the hollow shaft 10 from the
It flows into the suction passage 11 through 14 and the hollow shaft 4. In such a state, the rotary cylinder 5 continues to rotate due to its inertia, so that the pressure in the suction passage 11 and the hollow shaft 4 detected by the pressure sensor 18 peaks as shown in FIG. Fluctuate to produce.

The first brake signal output means 33 is a pressure signal output means 25.
The pressure signal input from the motor controller 27 is monitored, and the third brake signal is output to the motor control means 27 at a predetermined timing. The motor control means 27 is a first brake signal output means.
When the third brake signal is received from 33, the forward rotation signal and the reverse rotation signal are simultaneously output to the motor 8 and the motor 8
Thus, the rotation of the rotary cylinder 5 is forcibly stopped. Here, in the present embodiment, the first brake signal output means 33
However, the predetermined timing for outputting the third brake signal is
At that timing, when the third brake signal is output to the motor control means 27, the suction port 7 of the next suction pipe 6 stops at a position directly facing the surface of the mounting plate 2a of the holder 2 at the counting position. The timing is set as described above, and thus, at the start of the next counting operation, the suction port 7 of one suction tube 6 faces the surface of the uppermost banknote B held in the holder 2, and is surely This is sucked and guaranteed to be flipped over, so that the number of bills B can be accurately counted. This timing can be easily determined experimentally, and even if the timing of outputting the experimentally determined third brake signal is not appropriate, after the counting operation of the banknote B is completed, It is possible to automatically and easily correct the timing of outputting the 3rd brake signal to an appropriate timing, and to output the 3rd brake signal at an appropriate timing in the counting operation of the bill B after the next time. According to the embodiment,
By the positioning control means 28, the suction port 7 of the suction pipe 6 is
Since the counting of the banknotes B is started in a state where the banknotes B are surely faced with each other, even if the timing of outputting the experimentally determined third brake signal is not appropriate, the banknotes B are accurately counted. It becomes possible to perform counting. In FIG. 10, K indicates the timing at which the pump stop signal is output, L indicates the timing at which the third brake signal is output, and M indicates the timing at which the rotary cylinder 5 stops as a result.

Furthermore, the number N of banknotes B set in the holder 2
But when less than the predetermined number N ₀ after the last bill B is counted, the pressure signal level count end signal output unit 34 is a monitor, since the rises to a predetermined level or more high value, counting The end signal output means 34 outputs the count end signal to the comparison means 31. In such a case, when the counting end signal is received, the counting signal indicating that the N _0th banknote B has been counted has not been input from the counting means 29 to the comparison means 31, and therefore, Since the coincidence signal is not output, the comparison means 31 outputs the counting end signal to the display means 35 to display that the counting operation is completed before counting the N _0th banknote B.

As described above, according to the present embodiment, when the number of banknotes B greater than the set number N ₀ is set in the holder 2, the set number N ₀ of the banknotes B is 1 to (N ₀ −1). ) th overlapped with a bunch of bills B, in a state in which a bundle of N ₀ bills B are formed, so that the rotation of the rotary cylinder 5 is stopped, the first brake signal, a first brake signal output means Since it is output from 33, the rotary tube 5 is then reversed and the (N ₀ +1) th banknote B of the banknote 6 sucked is the highest banknote B returned to the holder 2 (N _In a state where the surface of the ( ₀ + 1) th banknote B is directly faced, the second rotation is performed so that the rotation of the rotary cylinder 5 is stopped.
Since the brake signal is output from the second brake signal output means 32 and the rotation of the rotary cylinder 5 is stopped, it is possible to reliably separate the bundle of the set number N ₀ of banknotes B and take them out. At the start of the next counting operation, the suction port 7 of the suction tube 6 can surely suck the uppermost banknote B and turn it over. Moreover, in the present embodiment, the suction passage which has been conventionally monitored for counting the bills B is provided without providing any special means for separating and taking out the bundle of the bills B of the set number N _0. Only by monitoring the pressure inside 11 and the hollow shaft 4,
The set number N ₀ of banknotes B can be separated and taken out.

Furthermore, according to the present embodiment, even when the number of bills B set in the holder 2 is equal to the set number N ₀ , the suction port 7 of the suction pipe 6 automatically moves in the next counting operation. First, since the uppermost banknote B is positioned so as to face the surface of the uppermost banknote B to be sucked, the uppermost banknote B can be surely sucked and turned over at the start of the counting operation of the banknote B. It becomes possible to count the bills B with high accuracy.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

For example, in the above-mentioned embodiment, the present invention is applied to a bill counting machine, and a description is added, but the present invention is a counting machine for counting printed sheets such as lottery tickets and slips, and further, It can also be applied to a counting machine that counts unprinted sheets. When used in a counter that counts unprinted sheets, it is not necessary to distinguish the sheets, and thus the light emitter 16 and the light receiver 17 can be omitted.

Further, in the above-mentioned embodiment, five suction pipes 6 are provided around the shaft 4 at intervals of 72 ° from each other and equidistant from the shaft 4, but the number of the suction pipes 6 is five. It is not limited to. However, when two or more suction pipes 6 are located in the suction region S, it is not possible to count the number of sheets based on the pressure fluctuations in the suction passage 10 and the hollow shaft 4, so that the circle of the rotary cylinder 5 cannot be counted. Adjacent suction tube 6 in the circumferential direction
The angle formed by the center lines _Xa and _xb must be larger than that formed by the center lines _Xa and _xb.
Since there is a possibility that the sheets sucked by will interfere with each other, usually 8 or less, preferably 4 to 6 suction tubes 6 are spaced around the axis 4 at equal angles, and
It is desirable to place them equidistant from the axis 4.

Further, in the above embodiment, the first brake signal output means 33 outputs the first brake signal and the counting means 29 outputs (N ₀
The +1) th banknote B is detected and is output when the banknote detection signal is output. However, the timing of outputting the first brake signal is when the set number N _0th banknote B is from 1 to 1. The (N ₀ −1) th banknote B is overlapped with the N _0th banknote B
Of the suction tube 6 even when the rotary cylinder 5 is reversed.
It suffices that it is a timing at which the rotary cylinder 5 is stopped in a state where the N _0th banknote B is sucked by the suction port 7 and is not returned to the holder 2 side. Further, the first brake signal output means 33 may monitor the pressure signal from the pressure signal output means 25, and based on this, the first brake signal may be output.

In the above embodiment, the counting end signal output means
34, the counting end signal is output by the counting end signal output means 34.
The first brake signal output means 33 does not output the first brake signal and the counting stop signal to prevent the rotary cylinder 5 from rotating in the reverse direction. Means 33, pressure signal output means
When the pressure signal output from 25 is monitored and the first brake signal output means 33 detects that the level of the pressure signal has risen to a level higher than a predetermined level,
Only the first brake signal is output without outputting the counting stop signal, and the rotary cylinder 5 is rotated in the reverse direction so that one suction pipe 6
The suction port 7 can be positioned so as to face the surface of the mounting plate 2a of the holder 2 at the counting position.

Further, in the above embodiment, the center of the suction tube 6 is
Only when the suction pipe 6 is located in the suction area S,
The communication passage 14 is formed so that the inside of the shaft 10 communicates with the inside of the hollow shaft 4 and the suction passage 11, but by appropriately defining the range of the suction region S, the entire suction pipe 6 is Only when it is located in the suction region S, the shaft 10 of the suction pipe 6, the hollow shaft 4 and the suction passage 11 communicate with each other.
It is also possible to communicate via 14

In the above embodiment, the first brake signal is
When input from the first brake signal output means 33, or the second brake signal is the second brake signal output means.
When input from 32, the motor control means 27 electrically forcibly stops the rotary cylinder 5 by the motor 8, but a mechanical brake means is provided to provide the first brake signal or the second brake signal. When a signal is input, the motor control means 27 may activate this mechanical braking means to forcibly stop the rotary cylinder 5.

Furthermore, in the above embodiment, the pressure sensor 18 is
Although the pressure in the suction passage 11 is detected, the pressure in the hollow shaft 4 may be detected.

Further, in the above embodiment, each suction pipe 6 has one suction port 7, but each suction pipe 6 may have two or more suction ports 7.

Further, in the above embodiment, the predetermined level of the pressure signal for outputting the counting end signal is set as an absolute level, but the predetermined pressure level is the average pressure level or the maximum pressure level detected at the time of counting. Therefore, the level may be set to be higher by a predetermined amount.

Further, in the present invention, each means does not necessarily mean a physical means, and includes a case where the function of each means is realized by software, and the function of one means is two or more. The present invention also includes the case where it is realized by physical means and the functions of two or more means are realized by one physical means.

EFFECTS OF THE INVENTION According to the present invention, it is possible to provide a sheet counter with a simple structure that can reliably separate and take out a predetermined number of sheet bundles.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a banknote counter according to an embodiment of the present invention. FIG. 2 is a drawing for explaining the suction mechanism of the bill counting machine according to the embodiment of the present invention. FIG. 3 is a block diagram of a bill separating device for separating a predetermined number of bills provided in the bill counting machine according to the embodiment of the present invention. 4 and 5 are graphs showing pressure curves in the suction passage and the hollow shaft, which are detected by the pressure sensor. FIG. 6 is an enlarged graph of a part of the pressure curve of FIG. FIG. 7 is a schematic plan view of the rotary cylinder at the time when the first brake signal is output, and FIG. 8 is a schematic plan view showing a state where the rotary cylinder is stopped as a result of the output of the first brake signal. Is. FIG. 9 is an enlarged graph of a part of the pressure curve of FIG. FIG. 10 is an enlarged graph of a part of a pressure curve according to another embodiment. B ... Banknote, 1 ... Banknote counter, 2 ... Holder, 4 ... Rotating cylinder axis, 5 ... Rotating cylinder, 6 ... Suction tube, 7 ... Suction port, 8 ... Motor, 9 ... … Start switch, 10 …… Suction tube axis, 11 …… Suction passage, 12 …… Vacuum pump, 13 …… Pump motor, 14 …… Communication passage, 15 …… Holder motor, 16 …… Light emitter, 17… … Light receiver, 18… Pressure sensor, 20… Banknote sensor, 21… Start signal output means, 22… Holder position detection means, 23… Holder motor control means, 24… Pump motor control means, 25… ... Pressure signal output means, 26 ... Count start signal output means, 27 ... Motor control means, 28 ... Positioning control means, 29 ... Counting means, 30 ... Number of sheets setting means, 31 ... Comparison means, 32 ... … Second brake signal output means, 33 …… First brake signal output means, 34 …… Count end signal output Means, 35 ... Display means.

Claims (8)

(57) [Claims] 1. A sheet holder for holding sheets to be counted, a rotary cylinder rotatable about a hollow shaft, a motor means for rotating the rotary cylinder, and a motor control means for controlling driving of the motor means. The rotary cylinder having at least one suction port formed on one end surface of the rotary cylinder so as to project around the hollow shaft at equal angles and at an equal distance from the hollow shaft. Of the plurality of suction pipes, a plurality of suction pipes rotatable in synchronism with the above, a vacuum pump means for supplying a vacuum pressure to the hollow shaft, a vacuum pump control means for controlling the driving of the vacuum pump means, and a plurality of the suction pipes. Only the suction tube located in a predetermined area facing the sheet held by the sheet holder is supplied by the vacuum pump means and a communicating means arranged so as to communicate with the inside of the hollow shaft. Pressure detection means for detecting a pressure change in the hollow shaft caused by sucking and turning over the sheet held by the sheet holder by vacuum pressure, and pressure change in the hollow shaft detected by the pressure detection means Based on, counting means for counting the number of sheets, a number setting means for setting the set number N ₀ of the sheet bundle to be separated,
Based on the output of the counting means, the number of sheets counted is
The set number of sheets N ₀ set by the number setting means
It is determined whether or not the match signal is output, and when it is determined that they match, the sheet counter equipped with the comparison unit that outputs the match signal receives the match signal output from the comparison unit and receives the N _0th sheet. The sheets are superposed on the 1st to (N ₀ -1) th sheets to form a N ₀ sheet bundle, and then the N _0th sheet is sucked even when the rotary cylinder is reversed. The suction tube outputs a first brake signal to the motor control means at a timing at which the rotary cylinder is stopped at a position where the No. _0th sheet is not sucked, and the rotary cylinder is forced. First brake signal output means for mechanically stopping,
After the first brake signal is output and the rotary cylinder is stopped, a reverse rotation signal is output to the motor control unit to reverse the rotary cylinder, and the pressure in the hollow shaft detected by the pressure detection unit is detected. Based on the change, at a predetermined timing, a reverse rotation stop signal is output to the motor control means to stop the reverse rotation of the rotary cylinder, and a drive stop signal is output to the vacuum pump control means to output the vacuum. The supply of vacuum pressure into the hollow shaft by the pump means is stopped, and all of the at least one suction port of one suction pipe of the plurality of suction pipes are directly opposed to the surface of the sheet holder. The sheet counter, wherein the motor control means is provided with a second brake signal output means for outputting a second brake signal at a position where the rotary cylinder stops. 2. The pressure in the hollow shaft detected by the pressure detecting unit is monitored, and when the pressure in the hollow shaft rises to a predetermined value or more after the counting of the sheets by the counting unit is started, A counting end signal is output to the first brake signal output means, and the first brake signal output means,
The vacuum pump control means outputs a drive stop signal without outputting the first brake signal, and the first brake signal output means monitors the pressure in the hollow shaft input from the pressure detecting means. When the first brake signal output means receives a count end signal from the count end signal output means, the pressure in the hollow shaft detected by the pressure detection means is provided. Based on the change, at a predetermined timing,
Outputting a third brake signal to the motor control means,
By the motor means, the rotary cylinder is forcibly stopped, and all of the at least one suction port of one suction pipe of the plurality of suction pipes are first sucked in the next counting operation. It is constituted so that it may be located at a position directly facing the surface (1).
The sheet counting machine described in 1. 3. The sheet counter according to claim 1, wherein eight or less suction pipes are provided. 4. The sheet counting machine according to claim 1, wherein the suction pipes 4 to 6 are provided. 5. The vacuum pump means is configured to be capable of supplying a vacuum pressure into the hollow shaft via a suction passage, according to any one of claims (1) to (4). The sheet counting machine described in 1. 6. The pressure change in the hollow shaft detected by the pressure detecting means is monitored, and the absolute value of the rate of change of the monitored pressure is equal to or more than a second predetermined value, and the pressure is the first value. When it is detected that it is less than the predetermined value of 3,
A counting start signal is output to the counting means, and when the absolute value of the rate of change of the monitored pressure is less than the second predetermined value, a positioning signal is output, and after the positioning signal is output, it is monitored. The absolute value of the rate of change of pressure is equal to or higher than the second predetermined value, and when detecting that the pressure is equal to or higher than the third predetermined value, outputs a counting start signal, to the counting means. Counting start signal output means for outputting,
When a positioning signal is received from the counting start signal output means, a reverse rotation signal is output to the motor control means to cause the motor means to reverse the rotation cylinder,
The motor control unit monitors the pressure change in the hollow shaft detected by the pressure detection unit, and detects that the absolute value of the monitored change rate of pressure is equal to or more than the second predetermined value. 6. The positioning control means for outputting a reverse rotation stop signal to stop the reverse rotation of the rotary cylinder by the motor means, according to any one of claims (1) to (5). Sheet counter. 7. The light emitting means for irradiating light on the surface of the sheet held by the sheet holder, and the light receiving means for receiving the light reflected by the surface of the sheet. Any one of 1) to (6)
The sheet counter according to item. 8. The sheet counter according to claim 1, wherein the sheet is a banknote.