JPS634238B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a paper sheet counter that controls the start and end of counting paper sheets without using a vacuum switch.

``Prior art'' A banknote counting machine that attracts and turns over banknotes one by one using the vacuum pressure inside a suction shaft that rotates while revolving, and counts the banknotes using the output signal of a proximity switch that detects the passage of the suction shaft. is publicly known.

In this type of conventional banknote counting machine, when a banknote comes into close contact with a suction shaft and a certain vacuum pressure is reached inside the suction shaft, a vacuum switch detects this, and this detection signal is sent to a rotary cylinder equipped with a suction shaft. The banknotes were rotated and the bills were turned over one by one. Therefore, when the holder supporting the banknotes is closed, if the suction surface of the suction shaft and the banknotes are not in close contact, the inside of the suction shaft will communicate with the outside air and the banknotes will not reach a certain vacuum pressure. is not absorbed and counting does not start.

In order to solve this problem, a problem arises in that it is necessary to properly orient the suction surface of the suction shaft to the banknotes on the holder before starting the operation of the machine. As a solution to this problem,
``Paper sheet counting machine'' (publication of Utility Model Publication No. 55-27014) was proposed earlier.

``Problems to be Solved by the Invention'' However, in the above-mentioned ``paper sheet counting machine,'' when a suction failure occurs, a clear switch is operated to cancel the suction operation of the vacuum pump, etc.
It is necessary for a dedicated operator to determine whether the suction is defective, and on the other hand, if the suction action by the vacuum pump is left uninterrupted, there are other disadvantages such as the noise caused by the suction shaft sucking air. have.

The present invention has been proposed in view of the above circumstances, and an object of the present invention is to provide a paper sheet counter that can start counting paper sheets regardless of the stop position of the suction shaft.

"Means for Solving the Problem" The first invention includes a holder that swings loaded paper sheets to a counting position, and a holder position detection switch that detects that the holder has reached the counting position. , a rotating cylinder that rotates around an axis, and a rotating cylinder that is provided parallel to the axis at a position radially away from the axis of the rotating cylinder, rotates while revolving around the axis, and is connected to a vacuum pump by a pipe line. A suction shaft that is connected to each other and attracts and turns paper sheets one by one using internal vacuum pressure, a proximity switch that detects the passage of the suction shaft, and a proximity switch that picks up and turns paper sheets one by one using internal vacuum pressure; A paper sheet counter comprising: a sheet counting means for counting uncounted sheets; an uncounted sheet detecting mechanism for detecting uncounted sheets on the holder; The vacuum pump is activated by a solenoid valve that opens the pipe when a paper sheet detection signal from the leaf detection mechanism and a first signal from the proximity switch are output, and a count position detection signal output from the holder position detection switch. a pump motor drive control unit to be driven, a counting motor drive mechanism that revolves and rotates the suction shaft immediately after outputting the counting position detection signal, and a paper sheet detection signal of the uncounted paper sheet detection mechanism when the paper sheet detection signal is not output. The counting end detection section outputs a signal for returning the solenoid valve, the pump motor drive control section, and the counting motor drive mechanism to their initial states in response to the first signal of the proximity switch.

The second invention includes a holder that swings loaded paper sheets to a counting position, a holder position detection switch that detects that the holder has reached the counting position, and a rotating cylinder that rotates around an axis. , is provided parallel to the axis at a position radially away from the axis of the rotary cylinder, rotates while revolving around the axis, and is connected to a vacuum pump by a pipe line, so that paper sheets are drawn by internal vacuum pressure. The present invention includes a suction shaft that attracts and turns over paper sheets one by one, a proximity switch that detects passage of the suction shaft, and a number counting means that counts the number of paper sheets each time a detection signal is output from the proximity switch. In the paper sheet counting machine, an uncounted paper sheet detection mechanism that detects uncounted paper sheets on the holder, and a paper sheet detection signal of the uncounted paper sheet detection mechanism that closes the pipe line when not in operation. a solenoid valve that opens the conduit when the first signal of the proximity switch is output; a pump motor drive control unit that drives the vacuum pump in response to a count position detection signal output from the holder position detection switch; A counting motor drive mechanism that revolves and rotates the suction shaft immediately after the output of the counting position detection signal, and an initial signal of the proximity switch when the paper sheet detection signal of the uncounted paper sheet detection mechanism is not output. A counting end detection unit that outputs a signal to return the solenoid valve, pump motor drive control unit, and counting motor drive mechanism to the initial state, and a protrusion operation that occurs simultaneously with the start of the operation of the holder to swing the paper sheet to the suction shaft. The rotary cylinder starts rotating and protrudes in the opposite direction to the swinging direction to hold the leading edge of the paper sheet, while when the first signal is output from the proximity switch after the rotating cylinder starts rotating, it returns to the original position and holds the paper sheet. The invention is characterized by comprising a regulating member for releasing the type.

"Operation" According to the first invention, the pipe line from the vacuum pump to the suction shaft is closed before the start of operation, and uncounted paper sheets are detected to see if there are any uncounted paper sheets on the holder. The mechanism detects uncounted paper sheets, and when uncounted paper sheets are detected, a paper sheet detection signal is output. Next, when the holder is closed, a signal is output from the holder position detection switch, the vacuum pump is driven by the pump motor drive control section, and when the vacuum pressure becomes constant, the suction shaft is caused to revolve and rotate by the counting motor drive control mechanism. Next, in response to the first signal output from the proximity switch, the conduit is opened by the solenoid valve, and as a result, the paper sheets are picked up one by one by the suction shaft and counted by the number counting means.
Note that when all the paper sheets on the holder are turned up, a signal is output from the counting end detection section, and the solenoid valve, pump motor drive control section, and counting motor drive mechanism are returned to their initial states. This results in
Counting can be reliably started regardless of the stop position of the suction shaft.

According to the second invention, at the same time as the holder starts to swing and move the paper sheets closer to the suction shaft,
When the regulating member protrudes in a direction opposite to the swinging direction of the paper sheet, the side portion of the leading end of the paper sheet is pressed. Next, the regulating member returns to its original position by the first signal output from the proximity switch after the suction shaft has revolved. Thereby, it is possible to prevent paper sheets from protruding between the suction shafts, etc., and reliable counting can be performed.

"Example" The present invention will be described below based on an example shown in FIGS. 1 and 2.

First, the counting mechanism shown in FIG. 1 will be explained. In this counting mechanism, paper sheets S such as banknotes are placed on a holder 1 and brought into contact with a suction shaft 2,
At this time, when the rotary cylinder 3 supporting the suction shaft 2 is rotated counterclockwise, the suction shaft 2 itself rotates clockwise and uses vacuum pressure to attract and turn up the paper sheets S one by one. Perform counting. Paper sheet detection sensors 4A and 4B such as optical sensors are provided near the holder 1 and the rotary tube 3, and uncounted sheets protruding upward from the holder 1 are detected at the positions indicated by chain lines and solid lines. It is designed to detect whether it is present or not.

Continuing to explain the counting mechanism with reference to FIG. 2, the rotating cylinder 3 is driven by a counting motor 6 via a belt 5, while the holder 1 is linked to a holder opening/closing cam 8 which is rotationally driven by a holder motor 7. 9, and is swung in the direction of the suction shaft 2 by rotation of the holder opening/closing cam 8 to bring the holder into the closed state, or rotated in the opposite direction to bring the holder into the open state. In addition, the holder opening/closing cam 8
An open position detection switch 10 and a closed position detection switch 11 are provided on the outer periphery of the holder 1 to detect the open and close positions of the holder 1.
A start button 12 for starting the counting operation is provided on the top surface of the holder 1.

As shown in FIG. 2, the suction shaft 2 is hollow and opens at a flat contact surface 2a.
The hollow part 2b of the suction shaft 2 is connected to the vacuum pump 13 through the conduit 1.
4, and in the middle of the conduit 14,
The pipe line 14 is closed when not driven and the pipe line 14 is closed when driven.
A solenoid valve 15 is provided that communicates with each other. Furthermore, an actuating piece 16 (for example, an iron piece, etc.) is attached to the side surface of the rotary cylinder 3 in correspondence with the position of the suction shaft 2, and a proximity switch 17 is installed to detect when the actuating piece 16 approaches. In addition, the counting motor 6, the operating piece 16, the proximity switch 17, the counting motor drive control section 25, which will be described later, and the counting end detection section 29.
etc. constitute the counting motor drive mechanism 30, and the paper sheet detection sensors 4A and 4B, the uncounted sheet detection section 28, etc. constitute the uncounted sheet detection mechanism 31.

Next, we will discuss the control system of each of these mechanisms in the fourth section.
This will be explained with reference to the time chart shown in the figure.

"Timing 1" (T1 in FIG. 4).

The suction shaft 2 is located at an arbitrary position, and at this time,
"Timing 2" (T2) under the condition that paper sheets S on holder 1 are confirmed by paper sheet detection sensors 4A and 4B.

When the start button 12 of the holder 1 is pressed, this signal causes the holder motor drive control section 21 to put the holder motor 7 into operation and swing the holder 1 in the direction of the suction shaft 2.

"Timing 3" (T3).

When the holder 1 is closed, the leading edge of the paper sheet S comes into contact with or near the suction shaft 2, and a signal is output from the closed position detection switch 11 to stop the operation of the holder motor 7. At the same time, the pump motor drive control unit 22 puts the pump motor 23 into operation, and the vacuum pump 13 is driven. In addition, the closed position detection switch 11
The signal is also transmitted to the delay circuit 24.

"Timing 4" (T4).

When the vacuum pump 13 is driven, since the pipe line 14 is closed by the solenoid valve 15, the inside of the pipe line 14 between the vacuum pump 12 and the solenoid valve 15 quickly reaches a constant vacuum pressure. When a signal is outputted from the delay circuit 24 in response to this rise in vacuum pressure, the counting motor drive control section 25 operates the counting motor 6, and the suction shaft 2 starts to rotate while revolving.

"Timing 5" (T5).

Next, the first falling signal when the proximity switch 17 changes from "ON" to "OFF" is output.
This signal causes the solenoid valve drive control section 26 to
drives the solenoid valve 15, the pipe line 14 communicates with the opening of the contact surface 2a via the hollow part 2b of the suction shaft 2, and the first paper sheet S is sucked. At this time, since the vacuum pump 13 is driven in advance at timing 3 and most of the pipe line 14 has reached a constant vacuum pressure, the first sheet S near the contact surface 2a of the suction shaft 2 is quickly removed. It is attracted to the paper and is peeled off.

"Timing 6" (T6).

Then, as the rotary cylinder 3 rotates counterclockwise in FIG. 1, the contact surface 2a passes the position directly facing the surface of the paper sheet S (rotary cylinder fixed position), and "timing 7" (T7) occurs.

Further, by rotating the suction shaft 2 counterclockwise, the first paper sheet S is turned over while being folded clockwise as shown by _S1 to _S2 in FIG. Further, when the proximity switch 17 is turned ON again and outputs a falling signal that is turned OFF, this signal is transmitted to the sheet number counting section 27 and the first sheet S is counted. At this time, the next suction shaft 2 is 2
The suction action for the second paper sheet S has started, and is repeated thereafter.

"Timing m" (Tm).

When these counting operations continue and all the paper sheets S on the holder 1 are turned over, the paper sheet detection sensors 4A and 4B detect "no" paper sheets, and the uncounted paper sheet detection section 28 A signal is transmitted to the counting end detecting section 29 via.

"Timing n" (Tn).

Next, when the falling signal is transmitted from the proximity switch 17 to the counting end detection section 29, the counting end detection section 29 stops the operation of the pump motor 23 via the pump motor drive control section 22, and starts the counting motor drive control. Operations such as stopping the operation of the counting motor 6 via the solenoid valve drive control section 25, stopping the driving of the solenoid valve 15 via the solenoid valve drive control section 26, and locking the number counting section 27 are performed. Thereafter, the counting operation ends.

Note that if the start button 12 is pressed with no paper sheets S placed on the holder 1, a signal is transmitted from the uncounted paper sheet detection section 28 to the counting end detection section 29, so that the proximity switch 17 When the first falling signal is output, the counting motor 6, pump motor 23, and solenoid valve 15 are stopped from being driven, and the sheet number counting section 27 is locked.

Furthermore, when the uncounted sheet detecting section 28 does not detect any sheet S, the holder motor drive control section 21 may be locked by the signal.

Next, FIG. 3 shows another embodiment of the present invention, and corresponds to FIGS. 1 and 2, respectively. In other embodiments, when the paper sheet S is brought close to the suction shaft 2 by the holder 1, the tip of the paper sheet S comes into contact with and is pressed near the holder 1 and the rotary cylinder 3. A regulating member 18 is provided to ensure this. This regulating member 18 is a separating device that, when set to a mode for taking out a desired number of paper sheets S (referred to as batch mode), presses down the remaining paper sheets S at the moment when the desired number of paper sheets S is counted. etc. are used. That is, due to the driving force of the solenoid 18a, the separator 18b is projected in the opposite direction to the direction in which the paper sheet S approaches the suction shaft 2, as shown by the chain line in FIG. and a separator 18
b is returned to the solid line position in FIG. 3 by the spring 18c when the solenoid 18a is in a non-energized state.

The operation of the regulating member 18 is performed between timing 2 and timing 5 according to the time chart in FIG. That is, in response to a signal from the start button 12, the holder motor drive control section 21 puts the holder motor 7 into an operating state, closes the holder motor 1, and
The solenoid 18a is energized to cause the separator 18b to protrude to the position indicated by the chain line in FIG. 3 and stand by. Next, when the holder 1 is closed, the side of the leading edge of the paper sheet S is pressed against the separator 18b as shown by the chain line in FIG. 3, so even if the paper sheet S is loose, it becomes compressed. It does not protrude between the suction shafts 2 and 2. And the pump motor 23
is operated (timing 3), the counting motor 6 is operated (timing 4), and the proximity switch 17 is changed from "ON" to "OFF" (timing 5). At the falling signal, the solenoid 18a is de-energized and the separator 18b is turned off. is returned to the solid line position in Figure 3. Hereinafter, the same actions as in the first embodiment are performed.

Further, the regulating member 18 can be used to take out a desired number of paper sheets S. In this case, the output signal of the sheet counting section 27 is compared with the setting signal, and when the number of sheets turned over reaches the set number, the regulating member 18 is operated to suppress the remaining paper sheets S. .

It is also possible to combine other embodiments in which the regulating member 18 is used with a known technique in which the rotary tube is rotated in the reverse direction prior to sheet counting. For example, after closing the holder 1 and pressing the paper sheets S against the suction shaft 2, the rotary cylinder 3 is rotated in the opposite direction, and the paper sheets S or the loose sheets S get stuck between the suction shafts 2 and 2. The fourth
The operation may be performed at timing 4 or later in the figure. Furthermore, the paper sheet S can be held down by the regulating member 18 between timing 4 and timing 5.

"Effects of the Invention" As explained above, according to the first invention, before the start of operation, the conduit from the vacuum pump to the suction shaft is closed by a solenoid valve,
When uncounted paper sheets are detected on the holder, the holder is closed, the suction shaft revolves and rotates, and a signal from the proximity switch drives the solenoid valve to open the pipe and perform counting. Therefore, the counting operation can be reliably started regardless of the stop position of the rotary cylinder, and the conventional vacuum switch can be omitted. As a result, there is no need to stop the suction shaft with the contact surface facing the paper sheets S as in the prior art example, and the rotary cylinder can be stopped and started at any position, and the structure of the paper sheet counter can be improved. It can be simplified and adjustments can be made easily.

Further, according to the second invention, since the paper sheets are held down by the regulating member before the suction of the paper sheets starts, malfunctions are reduced and the paper sheets are prevented from protruding between the suction shafts. This allows counting to be started reliably.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a main part of a counting mechanism according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of the relationship between the main part of a counting mechanism and a control circuit according to this embodiment, and FIG. 3 is another embodiment of the present invention. FIG. 4, which is a plan view of the main part of the counting mechanism according to the example, is a time chart of the control system in both embodiments. S... Paper sheets, 1... Holder, 2... Suction shaft,
2a...Contact surface, 3...Rotating cylinder, 4A/4B...
Paper sheet detection sensor, 6...Counting motor, 7...Holder motor, 10...Open position detection switch, 11
...Closed position detection switch (holder position detection switch), 12...Start button, 13...Vacuum pump,
14...Pipe line, 15...Solenoid valve, 16
... Actuation piece, 17 ... Proximity switch, 18 ... Regulation member, 18a ... Solenoid, 18b ... Separator, 21 ... Holder motor drive control section, 22
... Pump motor drive control section, 23 ... Pump motor, 24 ... Delay circuit, 25 ... Counting motor drive control section, 26 ... Solenoid valve drive control section, 27 ... Number counting section, 28 ... Not counted Paper sheet detection section, 29... Counting end detection section, 30... Counting motor drive mechanism, 31... Uncounted paper sheet detection mechanism.

Claims (1)

[Scope of Claims] 1. A holder that swings loaded paper sheets to a counting position, a holder position detection switch that detects when the holder has reached the counting position, and a rotating cylinder that rotates around an axis. The rotary cylinder is provided at a position radially apart from the axis and parallel to the axis, and rotates while revolving around the axis, and is connected to a vacuum pump through a pipe line, so that the internal vacuum pressure causes paper Equipped with a suction shaft that picks up and turns over leaves one by one, a proximity switch that detects passage of the suction shaft, and a number counting means that counts the number of paper sheets each time a detection signal is output from the proximity switch. A paper sheet counting machine that includes an uncounted paper sheet detection mechanism that detects uncounted paper sheets on the holder, and a paper sheet detection signal of the uncounted paper sheet detection mechanism that closes the pipe line when not in operation. and a first signal of the proximity switch are output, a solenoid valve that opens the conduit, and a pump motor drive control unit that drives the vacuum pump based on the count position detection signal output from the holder position detection switch. A counting motor drive mechanism that revolves and rotates the suction shaft immediately after the output of the counting position detection signal, and an initial signal of the proximity switch when the paper sheet detection signal of the uncounted paper sheet detection mechanism is not output. A paper sheet counter comprising the solenoid valve, a pump motor drive control section, and a counting end detection section that outputs a signal for returning the counting motor drive mechanism to its initial state. 2. A holder that swings loaded paper sheets to a counting position, a holder position detection switch that detects when the holder has reached the counting position, a rotating cylinder that rotates around an axis, and a rotating cylinder that rotates around an axis. It is provided parallel to the axis at a position radially away from the axis, rotates while revolving around the axis, and is connected to a vacuum pump through a conduit, so that the internal vacuum pressure removes paper sheets one by one. A paper sheet counting machine comprising a suction shaft that attracts and turns over the paper sheets, a proximity switch that detects passage of the suction shaft, and a number counting means that counts paper sheets each time a detection signal is output from the proximity switch. an uncounted paper sheet detection mechanism that detects uncounted paper sheets on the holder; and a paper sheet detection signal of the uncounted paper sheet detection mechanism that closes the pipe line when not in operation and that outputs a paper sheet detection signal of the uncounted paper sheet detection mechanism and the first position of the proximity switch. a solenoid valve that opens the conduit when the signal is output; a pump motor drive control unit that drives the vacuum pump according to the count position detection signal output from the holder position detection switch; A counting motor drive mechanism that revolves and rotates the suction shaft immediately after output, and the solenoid valve and pump motor are driven by the first signal of the proximity switch when the paper sheet detection signal of the uncounted paper sheet detection mechanism is not output. a control unit, a counting end detection unit that outputs a signal to return the counting motor drive mechanism to the initial state; and a control unit that starts an ejecting operation at the same time as the holder starts an operation of swinging the paper sheet to the suction shaft. A regulation that protrudes in the opposite direction to hold the leading edge of the paper sheet, and returns to the original position and releases the paper sheet when the first signal is output from the proximity switch after the rotating cylinder starts rotating. A paper sheet counting machine comprising: