JPS59108629A - Paper sheet transport apparatus - Google Patents

Abstract

PURPOSE:To reliably adjust a skew feed and a transport interval by tentatively drawing out a required number of paper sheets to decide the inclination and interval to be compared with a reference value and classified and displaying decision result in a paying-in paper sheet transport apparatus. CONSTITUTION:When a mode changing switch 19 is turned on, a CPU11 is adapted to drive a transport motor 20 to transport paper sheets, and to pick interval data, inclining direction data and inclination data on a fixed number of paper sheets by a decision portion 12 in response to signals of photo arrays 51, 52. These data are compared with a reference value to be classified. When the inclination deviates from a reference range once, from long, short disorder display data, normal/abnormal judgement is performed by the number of times when the inclination is considerably larger than a reference value to draw up display data, When the data is displayed, according to the display, the width of a gap between a resisting roll and a draw-out roll is increased. Thus, the skew feed and transport interval can be adjusted reliably and easily.

Description

[Detailed Description of the Invention] The present invention relates to a paper sheet conveying device that distinguishes the type and authenticity of paper products such as banknotes, distributes them, and processes deposits, and in particular, easily adjusts the skew feed correction device. Paper that made it possible to do
Regarding the P-type conveyance device.

As is well known, in paper industry conveyance equipment, the type of paper sheet,
The most important issue is how to accurately and quickly distinguish between authenticity and falsehood, but this discrimination ability is greatly affected by the conveyance conditions of paper sheets, and diagonal feeding in the paper industry is difficult to distinguish. Abnormal conveyance intervals have a significant impact on processing speed.

In order to adjust this skewed feed and abnormalities in the conveyance interval, a skewed feed correction device is now installed. J
type of transport equipment is the mainstream.

FIG. 1 is a diagram showing an example of the configuration of a conventional paper sheet conveying device-4 equipped with this type of skew feed correction device e, and FIG.
A) is Part 1 (11th view), and the same figure (B) is its plan view.

In these figures, 1 is a paper sheet such as a banknote, and the paper sheet 1 is attached to a front plate 2. It is held between suppressing plates 3. Then, the paper sheets 1 are kicked out one by one downward from the kicking roller 41 provided in front of the front panel 2 (on the left side of the figure), and the kicked out paper sheets 1 are pushed out by the resistance roller 41. . At this time, separation ■ (sheets i, 'f depending on material 7)
Two-sheet feeding at t1 is prevented.

Further, various sensors (not shown) are disposed on the belt a feeding mechanism 8, and these sensors output various detection signals for determining the length, authenticity, etc. of the paper sheet 1.

In this way, the paper sheets 1 that have undergone heavy checks are sent out to the right in the figure by the belt conveyor (1) (8), and are classified based on the detection signals of the various sensors.

Now, the above-mentioned resistance rollers 5, 5 face both sides of the central feeding roller 6, and apply abrasive force in the opposite direction to the paper sheet 1 from the opposite side. This changes the conveyance state of the That is, when the adjusting screw 5a is turned clockwise as shown in FIG. The moving arm 5c moves counterclockwise in the same figure (A), and the gap between the resistance roller 5 and the virtual outer peripheral surface of the closing roller 6 is widened by the arm 1. The frictional force with Hx weakens, and if you turn the adjusting screw 5a7 counterclockwise (0) in the same figure,
The above gap width is pinched and the frictional force increases. In this way, by mutually adjusting the two resistance rollers 5, 5 facing both parts 1t11 of the central feeding roller 6, the diagonal feed and the conveyance interval can be adjusted.

A ratchet 5d is attached to the resistance roller 5, and is supported by the horizontal quill 15b.The C resistance roller 5 is also prevented from rotating clockwise by the ratchet pawl 5e. Each component 5, 5
A to 5e constitute the skew feed correction device A1.

By the way, conventionally, when performing the above-mentioned skew feed correction device (thus, when performing skew feed and conveyance interval Hm, an operator conveys a paper sheet of 11 weights and visually confirms its condition, After checking, the A alignment is performed by repeatedly stopping the conveyance and adjusting by turning the adjustment screw, and this checking operation and adjustment operation are complicated.

In view of the above-mentioned circumstances, the present invention provides a paper sheet conveying device that can reliably and easily adjust the diagonal feeding of paper sheets and the conveyance interval. It is characterized by displaying information such as feeding out a predetermined number of sheets, sorting out each sheet, whether or not diagonal feeding is being performed, and the quality of the conveyance interval on the display section.

Hereinafter, the present invention will be described in detail based on the drawings.
1 outputs each 1Φ output signal (these 9 will be described later) of the discriminator 12 to the receiver 13° input side 110 port 14
．． The stiffness is read in via the bus 15, and compared with a predetermined reference spoon, classified and organized, and slope amount data and interval farming data are created, and display data is created by determining whether they are correct or not. Then, this display data is displayed on bus 15.
, the output INII I/0 baud 1-16 is supplied through the driver 17 to the display section 18 (B negative, which is displayed. Then, the receiver 13 (this is connected 21') (the mode selector switch 19 is) E !1 A cash office that performs regular cash processing (
j1] mode and the data for the adjustment mentioned above (around 1 oblique data.

This is for switching and selecting the adjustment mode in which processing is performed to obtain interval 1 data, etc.), and when this mode changeover switch 19 is pressed, CP[Jll performs adjustment mode processing. On the other hand, it is connected to the driver 17 (
The motor 20 is a motor that makes each part of the transport mechanism rotate and sound, the clutch 21 for taking in and sounding is installed in each part of the upper + j L transport 4 - the lower part. This is a brake to ensure that the vehicle is stopped. Sara C, bus 1
51 are surrendered) L OM (read-only memory) 23 is controlled i + ftl blockrum dself 1, instruction is)
Memory, lLA+'+4 (random access memory) 2
4 for each! 1 Negative data This is a memory that stores the koto. In addition, the clock 25 is a lock signal CL of the CPU 111.
It supplies K. Note that 51. is indicated by a broken line.
The photo 52 will be described later.Next, FIG. 3 is a diagram showing an example of the configuration of the discrimination section 12.
FIG. 5A is a plan view showing the relationship between the paper sheet 1 and the photoelectric switch, and FIG. First, in Fig. 3 (a), the photoelectric switch 2
8.29 each consists of a light emitting element and a light receiving element (photodiode), and a photoelectric switch 28 is installed so that the paper sheet 1 being conveyed passes between the light emitting element and the light receiving element. .29 is arranged in the belt conveyance mechanism 8 shown in FIG.

Then, the photodiode (hereinafter referred to as photo) 28a of the photoelectric switch 28 detects the left front edge 1a of the paper sheet 1 and becomes 31# and δ when the left rear edge 1b passes. Otherwise, the signal 8L, which is a "0" signal, is output. On the other hand, the light/tortoise switch 29's light) 29a is paper 5i
A signal SR is output, which becomes a #1# signal from when the right front edge IC of ui is detected until the right rear edge 1d passes, and a "0" signal otherwise.
, 81% is supplied to the discriminating section 12 shown in FIG.

This discrimination section 12 includes an inclination direction detection circuit 31. It consists of an inclination amount detection circuit 32 and an interval line detection circuit 33. First, the tilt direction detection circuit 31 consists of two AND gates 34, 35, and two 8.R flip-flops (hereinafter referred to as "i"
It is comprised of 36, 37 (abbreviated as F) and a Noah gate 3B, and detects which side of the paper sheet 1 is leading, left or right. The operation of this circuit will be explained below. First, when the paper M type I does not interrupt the photoelectric switch 28, 29, the signal SL is output.

Both 8 pins are ゛0' signals, and FF36゜37
The set terminals S of FF36 and 35 are respectively supplied with the "2" signals from the anti-games 34 and 35, and the reset terminals of the FF36 and 37 are supplied with the w1# signal from the NOR gate 38. 11' signals are supplied from the output terminals of FF 36, 37 to the input terminals of FF 35, 34, respectively. is carried out and, for example, if the F) 28a first detects the left leading edge 1a of the paper sheet, JAl, the signal SL becomes a 1" signal, so the output 1 word of the AND gate 34 becomes #1',
The output signal of the NOR gate 38 becomes 0', and the FF 36 is set. This allows # from the q output terminal of FF36 to
Q # (Even if No. i is output and the AND gate 35 is closed, the F1-29a detects the right front edge IC of the paper copy 1, and Nobuhide 8 becomes the ``1'' signal, the 1'' F36 is not activated. The set state and the reset state of FF3) are maintained. In this way, when the left front edge portion 1a is in the lead, the tilt direction data DL of the 11' signal is output from the Q output terminal of the FF 36. Then, the inclination direction data DL becomes 11 until the signal 5L=8几=Y0'' again and the FF 36 is reset, that is, until the paper sheet 1 passes the photoelectric switch 28.29.
′ is kept in eccentric sign. On the other hand, the right front edge I of paper sheet fA 1
When C is detected first, the photoelectric switches 28 and 29
While any one of them is cut off, the tilt direction data Di-L of the #1'' signal is output from the Q output terminal of the FF 37.Next, the tilt amount detection circuit 32 outputs the two AND gates 40
, 41, exclusive OR circuit (hereinafter referred to as gx-〇几) 4
2. FF43. The AND gate 41 is composed of a counter 44 and detects the amount of inclination.
After the right front edge IC is detected by the photoelectric switch 29, the counter 4 remains open until the right front edge IC is detected by the photoelectric switch 29.
4 counts the number of pulses of the clock signals C and LK applied to the trigger terminal T (
The oblique injection is detected by varying the number of pulses.More specifically, when the signal 8I (,,=SL=''0・, the output of the AND gate 40 is 10'', the output of the NOR gate 38 is ・l)・
Therefore, the FF 43 is in a reset state.

On the other hand, at this time)! The output of the 3x-o filter is the °O'' signal.The counter 44 also indicates that the output of the NOR gate 38 is 91
'When it becomes 1, clear it. Next, the left front edge 11
1a is detected by the optical switch 28, and the signal SL=-
When 1-, 8B = "0", the output of the NOR gate 38 becomes 0", but since the output of the AND gate 40 is also 50', the FF 43 remains in the reset state and remains unchanged.

Also, at this time, the output of EX-UR42 becomes the 11' signal, so the AND gate 41 becomes open, and the counter 44
counts the clock signal CLK. Next, when the right front edge 1c is detected and the signal 5L=SR=“1”, the output of the AND gate 40 becomes 1” and F F 43 is set.
The counter 44 stops counting. Next, the left rear edge 1b passes through the optical switch 28 and the SL
=″O″.

When FR=-1'', the outputs of the AND gate 40 and the Nant gate 38 both become 0#, and the FF 43 is kept in the set state jz3.
remains closed. Furthermore, the right rear edge 1d is
Pass the L switch 29 > fM (iJ No. 5L = S = 3
0'', the AND gate 41 is kept closed as described above, and is not counted in the clock signal C.1. In this way, the counter 44 starts counting after the front part of the preceding target is detected. The clock signal CLK is counted until the leading edge of the left leading edge 1a and the right leading edge IC is detected.This converts the distance difference between the left leading edge 1a and the right leading edge IC into the number of pulses 2, which is converted into the slope data 1). I) is output from the counter 44.

Next, the spacing detection circuit 33 operates through OR gates 45°46,
Counter 47. Latch circuit 48. The counter 47 detects the drive signal IR (this is the signal that is output when the start button is pressed down at the start of operation) or the output signal of the inverter 49 ( This is the signal 5L=-1″
Or, it is cleared at the rising edge of 8 几 = ゛1'', which becomes a pulse-like ``1'' signal after a few seconds.]
, counts the clock signal CLK. Then, when the leading edge of the paper sheet 1 is detected first and the output of the OR gate 45 becomes 11'', the count value of the counter 47 at this time is read into the latch circuit 48. is after pressing the start button or first (
The time from when the leading edge of the paper sheet Ql is narrowed down (tl) until the leading edge of the next sheet Ql is detected (tl, the number of pulses of the output clock signal CLK) is latched as the interval data DB.Then, each of the above-mentioned data DL, DR,, DD, DB and check command C
C is supplied from the discriminator 12 to CP (Jll) as shown in FIG. This results in a ``1'' signal.

In such a configuration, when the operator presses down the mode changeover switch 19 to select the adjustment mode, the CPU II performs the control shown in the flowchart of FIG. 4. That is,
The CPU 11 sets the count value N of the built-in sheet number counter to N.
= Q, the conveyance motor 20 is started, and the paper sheet Ml is conveyed. Then, when both the photos 28a and 29a enter the interrupt state 4, that is, when the check command CC becomes °1'1B, each of the output data DL, I)R, DD, and l)S of the discriminator 12 Load,
Threatening at Rin AM24. In this way, the operations of transporting paper sheets → reading the output data of the discriminating unit 12 → writing to the AM 24 are repeated one after another, and when the above data is collected for a predetermined number of sheets (N=10), the transport motor 20 is activated. Then, (, 'PU11 compares the interval data D8 and the slope amount data l) D with a predetermined reference value and classifies them. Figure 5 (a) shows the interval fare data f) obtained in this way. This is the classification result of 8, and if the interval award deviates from the basic τV range even once, the CPU II will classify it as "long", "short", or "ran" (interval 1/?AM is too crowded) depending on the length of the interval award. If the interval is too short and the interval is too short, the interval is judged to be too short. On the other hand, Fig. 5 (b) shows the classification results of the slope amount data DD, and there are cases where the slope value is significantly red compared to the standard value once or more, or the slope amount is slightly larger than the standard value twice. It is considered abnormal if it occurs more than once. Also, anything other than 0 is judged to be normal. In this case, CPU II is "normal", "abnormal (L side leading)",
Make a judgment of "abnormality (advanced side)" and create display data corresponding to these judgments (tilt judgment).In this way,
When the classification 1 judgment of each data is completed, the CPU 11 displays the display data corresponding to the interval error, if any, for a certain period of time, and then displays the display data corresponding to the inclination judgment for a certain period of time. Note that the CPU 11 constantly checks whether or not the start button has been pressed, and when it detects this, it performs the above-described process again.

In this way, when each display data corresponding to the interval judgment and inclination judgment is displayed, the operator can select the fifth screen based on these data.
Perform the adjustment shown in Figure (c). For example, if the interval judgment is "long"
If the inclination judgment is "abnormal (L9111 precedes)", the operator turns the adjustment screw 5a on the lower side, that is, on the right side in the conveyance direction, clockwise as shown in FIG. A adjustment is performed to widen the gap width formed by the virtual outer circumferential surface of No. 6.

Then, press the start button again to check the operating state of the device after adjustment. In the same manner, the Ministry of Hossou will
Based on the classification result of U11, it is possible to easily and accurately adjust the skew feed correction device.

Next, FIG. 6 is a circuit diagram showing another example of the structure of the discriminating section, and this discriminating section 12' differs from the discriminating section 12 shown in FIG. 3 in the following points.

■ In the discriminating unit 12' shown in FIG. 6, a photo array 51° photo 29 is placed at the position of the photo 28a shown in FIG.
A photo array 52 is provided at position a, and the photo array 51 consists of N photos L1 to LN arranged in a line in the transport direction, and the photo array 52 also consists of N photos L1 to LN arranged in a row in the transport direction. Consisting of And and gate 3
The input terminal of the AND gate 35 is supplied with the output signal 8Ll of the photodiode 1, and the input terminal of the AND gate 35 is supplied with the output signal 8Ll of the photodiode 1.

■ The inclined plate detection circuit 53 consists of a multiplexer 54, an encoder 55, and a latch circuit 56, and the selector terminal A1 of the multiplexer 54 receives the signal DI from the Q output terminal of the FF 36, but the signal DI from the Q output terminal of the FF 36 is sent to the selector terminal B. Signal signals are supplied from the Q output terminals of the FF37. In addition, the input terminals of the multiplexer 54 are photo L.
The output signals 8L1 to 8LN of 1 to LN are input to the input terminals B1 to
BN has 8 output signals of photo 1 to 811.
N is supplied with 0. Thus, the multiplexer 54
When the signal DL='1'' is output to the output terminals X1 to XN of
(that is, when the left side is leading), the output signals SL1 to 8 of the photos Ll to LN are the same as when the signal signal = "l" (that is, when the right side is leading) (the output signals SL1 to 8 of the photos L1 to N are
) 41 to 8 N are output respectively.

The output signals of the output terminals X1 to XN are output from the encoder 5.
5, and is latched into the latch circuit 56 when the check command CC becomes the 11# signal, that is, when the trailing leading edge is detected. In this way, the latch circuit 56 has the number i (or j) of the photos L1 to Ll (or R, 1 to Rj) blocked by the paper sheet 1 when the trailing leading edge is detected. It is decimal encoded and latched. In this way, the left-right difference of the paper sheet l, that is, the tilt amount data DD is output from the latch circuit 56.Other than the above-mentioned points, the structure and function of the discriminating sections 12 and 12' are the same. Each data output from l)1. , D, DD, and D8 are processed in the same manner as described above.

Note that the photos 28a, 29a or the photo array 51,
52 directly through the receiver 13 shown in FIG.
It is also possible to supply it to PUI 1 to make the above-mentioned determination (see FIG. 2, 51.52).

As explained above, the present invention allows a predetermined number of paper sheets to be fed out on a trial basis, and the amount of inclination and the feeding interval of each paper sheet to be determined during transportation are determined. The data is classified and organized by comparing it with a preset reference amount, and the information is displayed on the display, such as the presence or absence of diagonal feed and the quality of the conveyance interval, so that the operator can obtain information about diagonal feed and conveyance interval. Since the skew feed correction device can be adjusted based on this information, there is an advantage that the skew feed and the conveyance interval can be adjusted easily and reliably.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an example of the configuration of a conventional sheet conveying device equipped with a skew feed correction device. Fig. 1 (a) is a side view thereof, and Fig. 1 (0) is a plan view thereof. be. In addition, No. 2N is a block diagram showing the configuration of the control unit of the paper sheet conveying device R according to the present invention, and Figure 3 (A) is a diagram showing the relationship between the paper sheet being conveyed, the optical sensor, and the switch. Figure (d) is a circuit diagram showing an example of the configuration of the discriminator 12, Figure 4 is a flowchart for explaining the processing operation of the CPU II when the adjustment mode is selected, and Figure 5 (a) is the interval data. Figure (b) is a diagram showing the classification results and determination of slope needle data. ) is a diagram showing the adjustment method taken by the operator based on the judgment (corresponding display data).Furthermore, FIG.
5.5a to 5e...Diagonal feed correction device, 12.
12'...discrimination section, 18...display section, 1
9...Mode selection switch, 28, 29...
...Photoelectric switch (detector), 51.52...Photo array (detector). Applicant: Row 1 Full Punk Machine Co., Ltd., □-7-
−−4・j′

Claims (1)

[Claims] A paper sheet conveyance device having a skew feed correction device includes a mode changeover switch for switching between a cash processing mode and an adjustment mode, and a plurality of switches provided in a paper sheet conveyance path to detect passage of the paper sheets. a detector, a determination unit that detects the conveyance state of the paper sheet based on the detection signal of the detector and outputs data regarding the conveyance state, and when the mode changeover switch selects the adjustment mode; Paying out a predetermined number of the paper sheets, determining the conveyance state of the fed paper sheets based on data output from the determining section,
A paper sheet conveyance device comprising: a control unit that outputs the determination result; and a display unit that displays the determination result.