WO2017020633A1

WO2017020633A1 - Thickness detection device for sheet medium and financial self-service device

Info

Publication number: WO2017020633A1
Application number: PCT/CN2016/082765
Authority: WO
Inventors: 曾小刚; 谭栋
Original assignee: 广州广电运通金融电子股份有限公司
Priority date: 2015-08-06
Filing date: 2016-05-20
Publication date: 2017-02-09
Also published as: CN105069896B; CN105069896A

Abstract

A technique of processing a sheet-type medium (101), particularly an thickness detection apparatus for a sheet-type valuable document used in a financial self-service device (300), comprising a mounting rack, a thickness reference shaft (110), a thickness detection assembly (120) that comprises a thickness detection roll (121) in elastic contact with the thickness reference shaft (110), the thickness detection roll (121) being rotationally mounted on a thickness detection reflective plate (122), the thickness detection reflective plate (122) being fixed with a thickness detection rotating shaft (123), the thickness detection rotating shaft (123) forming the rotating center of the thickness detection roll (121), the thickness detection rotating shaft (123) being fixedly provided with a thickness detection amplifying plate (124); and a thickness measurement assembly (130) comprising a thickness sensor (133) for measuring the amount of movement of the thickness detection amplifying plate (124), the thickness detection reflective plate (122) and the thickness detection amplifying plate (124) forming an angle α which enables the thickness detection amplifying plate (124) to be parallel to the thickness sensor (133); the thickness value of the sheet type medium (101) being calculated according to the amount of movement of the thickness detection amplifying plate (124) measured by the sensor (133).

Description

Thickness detecting device for sheet medium and financial self-service device

The present application claims priority to Chinese Patent Application No. 201510478084.4, entitled "Thickness Detection Device for Sheet Media and Financial Self-Service Equipment", filed on August 06, 2015, the entire contents of which are incorporated by reference. Combined in this application.

Technical field

The present invention relates to a processing technique for a sheet medium, and more particularly to a thickness detecting device for detecting a sheet medium in a financial self-service device.

Background technique

With the continuous development of the economy, the processing capacity of banknotes is getting larger and larger, and the requirements for the processing capacity of financial self-service equipment are also increasing. The main functions of the financial self-service equipment currently used are automatic deposit and withdrawal machines and clearing machines. Etc. In these devices, devices for automatically detecting the thickness of banknotes are widely used. In order to check each of the sheet-type value documents (such as banknotes, checks, money orders, etc.) processed in batches in these financial self-service devices, it is necessary to separate the stack of sheet-value documents one by one, and then Separate sheets of valuable documents for image recognition, thickness detection, magnetic information detection, etc., to ensure the authenticity of the processed value documents, wherein the thickness detection of the banknotes is an essential Identification means. At present, the sheet-like valuable documents are generally made into a sheet-shaped medium having a certain thickness characteristic by using special materials. At present, the counterfeit value documents and the spliced value documents are all trying to forge this thickness identification feature to deceive ordinary financial equipment. Detection of this type of identification feature. Therefore, in financial service equipment, reliable identification of the thickness of the document of value is of great significance for the authenticity of the document of value. Therefore, the thickness detection information can be used to determine whether the processed sheet-like value document is authentic or not, and whether the mechanically separated sheet-like value document is a sheet, that is, whether it is a heavy bill, and the self-service financial device is accurately processed. Sex.

Currently, conventional sheet-type medium thickness detecting devices generally include a thickness sensor and a thickness detecting assembly. The thickness detecting component is mainly divided into a detecting unit and a detecting signal amplifying unit. When the sheet medium passes through the thickness detecting component, the detecting unit generates a slight displacement, and then the displacement amount is amplified by the detecting signal amplifying unit, and the thickness sensor obtains the amplified displacement amount, and then undergoes a series of operations. The thickness of the medium is obtained. Traditional thickness inspection The measuring device has a complicated structure, is prone to measurement errors, and is extremely complicated in adjusting the initial position of the thickness sensor with respect to the thickness detecting assembly, and is inconvenient to adjust.

The thickness detecting device provided by the invention has accurate measurement and convenient adjustment, and overcomes the disadvantages of the above conventional thickness detecting device.

Summary of the invention

In order to solve the above-mentioned deficiencies of the conventional sheet medium thickness detecting device, the present invention provides a thickness detecting device which is accurate in measurement, simple in structure, convenient in operation, easy to maintain, stable and reliable.

The thickness detecting device of the sheet medium comprises:

a mounting bracket for mounting and carrying the following components;

a thickness reference shaft, the two ends of which are mounted on the mounting bracket by bearings;

a thickness detecting assembly comprising a thickness detecting roller elastically contacting the thickness reference axis, the thickness detecting roller being rotatably mounted on a thickness detecting reflecting plate, the thickness detecting reflecting plate being fixed to a thickness detecting rotating shaft, the thickness detecting rotating shaft Forming a rotation center of the thickness detecting roller, the thickness detecting a thickness detecting amplification plate fixedly disposed on the rotating shaft,

a thickness measuring assembly including a thickness sensor for measuring the amount of movement of the thickness detecting magnifying plate;

Wherein the thickness detecting reflector is at an angle α with the thickness detecting magnifying plate, the angle α is such that the thickness detecting magnifying plate is parallel to the thickness sensor; and the moving amount of the thickness detecting magnifying plate measured by the sensor is calculated and passed The thickness of the sheet medium.

Preferably, the thickness measuring component is two sets, respectively correspondingly mounted on two thickness detecting magnifying plates symmetrically disposed about the center of the thickness detecting roller.

Preferably, the angle α is within ±1°.

Preferably, the length ratio of the thickness detecting magnifying plate to the thickness detecting reflecting plate is greater than 2, and less than 10 is more effective.

Preferably, the thickness measuring component comprises a thickness sensor bracket, a thickness sensor adjusting seat, an adjusting screw and a thickness sensor, the thickness sensor is fixed on the thickness sensor adjusting seat by a screw, and the adjusting screw is connected to the thickness sensor bracket and the thickness sensor for adjusting Seat, adjust the position of the thickness sensor adjustment seat by adjusting the rotation of the screw to accurately position the thickness sensor The initial position.

The invention also provides a financial self-service device, comprising:

a body for accommodating or installing the following components;

a human-computer interaction display device, configured to implement human-computer interaction on the body;

a banknote processing device disposed in the body for storing or discharging banknotes;

The thickness detecting device for the sheet medium described above in the banknote processing device is for detecting the thickness of the processed banknote.

The thickness detecting device of the sheet medium has the following advantages compared with the prior art:

The device controls the thickness of the thickness detecting plate by the thickness measuring component by controlling the thickness detecting reflector to form an angle α with the thickness detecting magnifying plate, and the use of the symmetrical two sets of thickness measuring components is The effect of the cumulative error caused by processing and assembly on the thickness measurement is greatly reduced, so that the thickness value obtained by the present invention is more accurate.

DRAWINGS

1 is a schematic diagram of the composition of a financial self-service device provided by the present invention;

2 is a control relationship framework diagram of the financial self-service device of FIG. 1;

Figure 3 is a schematic view of a thickness detecting device for a sheet medium in the financial self-service device shown in Figure 1;

4 is a simplified view of a thickness detecting device for a sheet medium according to the present invention;

Figure 5 is a schematic view showing the working state of the thickness detecting device of the sheet medium shown in Figure 4;

Figure 6 is a schematic structural view of a thickness detecting device of the sheet medium shown in Figure 4;

Figure 7 is a side elevational view of the thickness detecting device of the sheet medium shown in Figure 5;

Figure 8 is a perspective view of the thickness detecting device of the sheet medium shown in Figure 4;

Figure 9 is a first view of the thickness measuring device in the thickness detecting device of the sheet medium shown in Figure 4;

Figure 10 is a second view of the thickness measuring device of Figure 9.

detailed description

To further illustrate such a sheet medium thickness detecting apparatus provided by the present invention, a more detailed description will be made below in conjunction with the drawings of a preferred embodiment of the present invention.

Referring to FIG. 1 , a financial self-service device 300 according to the present invention includes a body for accommodating or installing the following components; a human-computer interaction display device 201 is disposed on the body for realizing human-computer interaction; a banknote processing device 204 is disposed in the body for storing or discharging banknotes; the banknote processing device is provided with a thickness detecting device for the sheet medium for detecting the thickness of the processed banknote, and of course the financial self-service device further includes a card And the list processing device 200, the input device 203, the deposit and withdrawal port 205, the main body control device 210, and other various necessary components. The functions and functions of these components are the same as those of the prior art, and therefore will not be described herein.

Referring to the control relationship frame diagram of the financial self-service device shown in FIG. 2, the banknote processing device 204 stores the banknotes put into the deposit/withdrawal port 205 or the banknotes from the deposit/withdrawal port 205 based on the user's deposit/withdrawal operation. The main body controller 210 performs overall control of the deposit and withdrawal machine 300. The card and schedule processing device 200 is mainly used to read card information and issue a statement, the input device 203 is a device for the user to input necessary information, and the display device 201 displays an input screen for selection of various transactions, etc. Machine interaction.

Referring to the schematic diagram of the banknote processing apparatus in the financial self-service device shown in FIG. 3, the banknote processing apparatus 204 can be roughly divided into an upper module A1 and a lower module A2. The upper module is mainly composed of a deposit and withdrawal port 1, a banknote transport passage 2, a recovery box 4, and the like. The lower module is mainly composed of a lower conveying passage 3, a cash box 5 and the like. The thickness detecting device of the sheet medium of the present invention is used in the banknote transport path 2 of the upper module A1 of the banknote processing device 204 for measuring the thickness of the banknote passing through the device to ensure the correct number of banknotes output to the user's hand. Nothing wrong.

The thickness detecting device of the sheet medium provided by the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, and the thickness detecting device for the sheet medium will be described with reference to the banknote as a sheet medium.

Referring to Figures 4, 5 and 6, the thickness detecting device of the sheet medium comprises a mounting bracket (not shown) for mounting and carrying the following components, a thickness of which is mounted on the mounting bracket by bearings at both ends The reference axis 110, a thickness detecting assembly 120, includes a thickness detecting roller 121 elastically contacting the thickness reference axis 110, and the thickness detecting roller 121 is rotatably mounted on a thickness detecting reflecting plate 122, and the thickness detecting reflecting plate 122 is A thickness detecting rotating shaft 123 is formed, the thickness detecting rotating shaft 123 forms a rotation center of the thickness detecting roller 121, the thickness detecting rotating shaft 123 is fixedly provided with a thickness detecting and amplifying plate 124, and a thickness measuring assembly 130 including a thickness for measuring the thickness a thickness sensor 133 that detects the amount of movement of the magnifying plate 124, wherein the thickness detecting reflecting plate 122 An angle α is formed with the thickness detecting magnifying plate 124. The angle α causes the thickness detecting magnifying plate 124 to be parallel to the thickness sensor 133; and the passing sheet is calculated according to the amount of movement of the thickness detecting magnifying plate 124 measured by the sensor 133. The thickness of the media. Specifically, as shown in FIG. 4, the thickness detecting reflection plate 122 forms an angle α with the thickness detecting magnifying plate 124, and the angle α can be adjusted according to the banknote entering direction P according to the specific implementation of each of the embodiments. In order to ensure the accuracy of the thickness measurement, the detection surface A of the thickness measuring assembly 130 is required to be parallel and both in a horizontal position and the surface C of the thickness detecting amplifying plate 124 is required to be parallel to the detecting surface A of the thickness measuring assembly 130; and the plate of the thickness detecting reflecting plate The face B is parallel to the banknote entering direction P; therefore, it is necessary to design an angle α between the plate surface B of the thickness detecting reflecting plate 122 and the surface C of the thickness detecting amplifying plate 124 to ensure that the requirements are satisfied. Further, in order to ensure the accuracy of the thickness measurement, the requirement of the angle α is controlled within ±1°, that is, the angle between the surface C of the thickness detecting magnifying plate 124 and the detecting surface A of the thickness measuring unit 130 is controlled to ±1. Within this, it is more advantageous to improve the accuracy of the measurement, and the initial distance between the thickness detecting amplifying plate 124 and the thickness measuring component 130 is T1. As shown in FIG. 5, the thickness detecting reflection plate 122 and the thickness detecting magnifying plate 124 are fixed on the thickness detecting rotating shaft 123, and the thickness detecting roller is fixed on the thickness detecting reflecting plate 122. The entire thickness detecting assembly 120 can detect the rotating shaft 123 around the thickness. The rotation of the thickness detecting roller 121 is effected by rotation, and the thickness detecting device 120 can be regarded as a lever mechanism that rotates around the thickness detecting rotating shaft 123. When the banknote 140 enters the thickness detecting device, since the thickness reference axis 110 is fixed, the thickness of the banknote causes the thickness detecting roller 121 to generate a slight displacement, and the displacement drives the thickness detecting reflecting plate 122 to rotate around the thickness detecting rotating shaft 123. Therefore, the thickness detecting magnifying plate 124 is rotated to generate an enlarged displacement T2. From the above, the initial distance is T1. Therefore, the displacement change amount ΔT=T2-T1 after the banknote passes through the device, and the ΔT is amplified by the thickness detection. The thickness of the banknote enlarged by the board 124. Since the length ratio of the thickness detecting magnifying plate 124 to the thickness detecting reflecting plate is known as L, the banknote thickness δ can be obtained by calculation: δ = ΔT / L. The length ratio L can be adjusted according to the actual use situation, but the requirement must be greater than 2, otherwise the effect of amplifying the measured value cannot be achieved, and the upper limit of L is recommended to be less than 10, and if it is too large, the angle α is processed and It is difficult to ensure assembly, which affects the parallelism between the surface C of the thickness detecting magnifying plate 124 and the detecting surface A of the thickness measuring assembly 130, and reduces the accuracy of the measurement result.

Referring to FIGS. 6 and 7, a schematic structural view of a thickness detecting device provided by the present invention includes a thickness reference axis 110, a thickness detecting assembly 120 and two thickness measuring assemblies 130. The thickness The detecting assembly 120 includes a thickness detecting roller 121, a thickness detecting reflecting plate 122, a thickness detecting rotating shaft 123, a thickness detecting magnifying plate 124, and a return spring 125. The thickness detecting roller 121 is mounted on the thickness detecting reflecting plate 122, and the thickness detecting reflecting plate 122 and the thickness detecting amplifying plate 124 are fixed to the thickness detecting rotating shaft 123 by screws, and the thickness detecting assembly 120 is rotatable around the thickness detecting rotating shaft 123, and the return spring The thickness detecting assembly 120 is tensioned to keep the thickness detecting roller 121 in contact with the thickness reference axis 110. The thickness measuring assembly 130 is composed of a thickness sensor holder 131, a thickness sensor adjusting seat 132, a thickness sensor 133, and an adjusting screw 134. After the thickness detecting reflection plate 122 and the thickness detecting magnifying plate 124 are mounted on the thickness detecting rotating shaft 123, a lever mechanism is formed, and when the sheet-like medium 101 passes between the thickness detecting reference axis 110 and the thickness detecting roller 121, the thickness detecting reference axis 110 is fixed, so the thickness detecting roller 121 rotates around the thickness detecting rotating shaft 123 by a slight amount of displacement, which is amplified on the thickness detecting amplifying plate 124, and the thickness sensor 133 measures the amplified displacement. After the amount, the thickness of the sheet-like medium can be obtained by calculation.

In particular, the thickness detecting reflection plate 122 and the thickness detecting magnifying plate 124 described in the present invention are spaced apart from each other on the thickness detecting rotating shaft 123, whereby the thickness measuring assembly 130 can be placed in a position convenient for adjustment and maintenance. When it is necessary to adjust the initial detection distance between the thickness sensor 133 and the thickness detecting magnifying plate 124, the adjustment operation can be conveniently performed.

One end of the return spring 125 is fixed to the thickness detecting magnifying plate 124, and the other end is fixed to the thickness sensor holder 131. The return spring 125 is always in a stretched state, when no sheet-like medium passes through the thickness reference axis 110 and the thickness detecting roller 121. During the interval, the thickness reference axis 110 and the thickness detecting roller 121 are in close contact with each other by the pulling force of the return spring 125; when the sheet-like medium completely passes between the thickness reference axis 110 and the thickness detecting roller 121, the tensile force of the return spring 125 can be The thickness detecting roller 121 is pressed against the sheet-like medium and attached to the thickness reference axis 110 to sufficiently ensure the measurement accuracy. When the sheet medium passes through the thickness detecting roller 121 and the thickness reference axis 110, the pulling force of the return spring can ensure the thickness detecting roller 121. It is quickly reset to the initial position and remains attached to the thickness reference axis 110. The purpose of the two thickness measuring assemblies 130 is to increase the thickness measurement points, which can reduce the influence of the cumulative error caused by the processing and assembly on the thickness measurement to some extent. The specific principle can be regarded as the measurement and calculation of the two thickness measuring components 130. The thickness value is averaged, so that the thickness value of the sheet medium can be obtained. For example, the thickness of the sheet medium through which the two thickness sensors are respectively measured is t1 and t2, then the sheet medium The thickness value is: (t1 + t2)/2. Optionally, in some cases where thickness measurement accuracy is not critical, only one thickness measurement component may be used.

Referring to FIG. 6, the two thickness measuring assemblies 130 are located directly above the two thickness-correcting amplifying plates 124. When the sheet-like medium passes between the thickness detecting roller 121 and the thickness reference axis 110, the thickness reflecting plate 122 drives The two thickness detecting magnifying plates 124 are rotated around the thickness detecting rotating shaft 123, so that the minute displacement amount generated by the sheet-like medium is amplified, and then the amplified signals are measured by the two thickness measuring components 130 and the thickness of the medium is calculated, and then two The thicknesses calculated by the thickness measuring assemblies 130 are averaged to obtain the thickness of the sheet-like medium. This method of averaging improves the accuracy of thickness measurements and reduces the impact of cumulative errors in processing and assembly on thickness measurements. Alternatively, it is also possible to use only one thickness measuring component in cases where thickness measurement accuracy is not critical.

Referring to Figures 9 and 10, in actual use, the thickness sensor 133 has an optimum measurement range, which greatly improves the accuracy of the thickness measurement when operating within the optimum measurement range. Therefore, the thickness sensor 133 and thickness need to be adjusted. The initial detection distance T1 between the amplifying plates 124 is detected so as to be within the optimum measurement range of the thickness sensor 133, and the thickness measurement accuracy is improved. As shown in FIG. 9, the thickness sensor adjusting seat 132 is correspondingly provided with a pair of long waist holes 132a. The thickness sensor adjusting seat 132 can be fixed to the thickness sensor bracket 131 through the long waist hole 132a by screws or the like, in particular, slightly loose. The fixing screw is opened, and the thickness sensor adjusting seat 132 can move up and down through the long waist hole. The external thread on the adjusting screw 134 has two differently threaded portions of the left-hand threaded portion 134a and the right-handed threaded portion 134b, and the threaded hole on the thickness sensor bracket 131 corresponding to the left-hand threaded portion 134a is also left-handed, right-handed threaded portion 134b The threaded holes on the corresponding thickness sensor adjustment seats 132 are also right-handed, and the adjustment screws 134 are connected between the thickness sensor holder 131 and the thickness sensor adjustment seat 132 through corresponding left and right screw holes. When the adjusting screw 134 is rotated clockwise or counterclockwise, since the screw portion is rotated in the opposite relationship, the distance between the thickness sensor bracket 131 and the thickness sensor adjusting seat 132 can be approached or moved, thereby adjusting the thickness sensor adjusting seat. 132 up and down position. When it is necessary to adjust the initial position between the thickness sensor 133 and the thickness detecting magnifying plate 124, the fixing screw is slightly loosened, and the adjusting screw 134 is rotated clockwise or counterclockwise to move the thickness sensor adjusting seat 132 up and down along the guiding groove. When adjusting to a suitable initial detection distance, the fixing screw can be locked. The thickness measuring assembly is more convenient to adjust the thickness than the conventional thickness detecting device while sufficiently ensuring the accuracy. Special, in this Two thickness measuring assemblies 130 are provided in the patent. The actual thickness values are the average values of the thicknesses measured by the two thickness measuring assemblies 130. This is to reduce the influence of the cumulative error caused by machining and assembly on the thickness measurement. The accuracy of the thickness measurement is provided to a large extent. Alternatively, in some cases where thickness measurement is not critical, a thickness measurement component can be removed and only one thickness measurement component can be used.

The above is only a preferred embodiment of the present invention, and it should be noted that the above-described preferred embodiments are not to be construed as limiting the scope of the invention, and the scope of the invention should be determined by the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and scope of the invention.

Claims

A sheet medium thickness detecting device comprising:

a mounting bracket for mounting and carrying the following components;

a thickness reference shaft, the two ends of which are mounted on the mounting bracket by bearings;

a thickness detecting assembly comprising a thickness detecting roller elastically contacting the thickness reference axis, the thickness detecting roller being rotatably mounted on a thickness detecting reflecting plate, the thickness detecting reflecting plate being fixed to a thickness detecting rotating shaft, the thickness detecting rotating shaft Forming a rotation center of the thickness detecting roller, and the thickness detecting rotating shaft is fixedly provided with a thickness detecting magnifying plate,

a thickness measuring assembly including a thickness sensor for measuring the amount of movement of the thickness detecting magnifying plate;

Wherein the thickness detecting reflector is at an angle α with the thickness detecting magnifying plate, the angle α is such that the thickness detecting magnifying plate is parallel to the thickness sensor; and the moving amount of the thickness detecting magnifying plate measured by the sensor is calculated and passed The thickness of the sheet medium.
A thickness detecting device for a sheet medium according to claim 1, wherein the thickness measuring members are two groups, respectively correspondingly mounted above the two thickness detecting magnifying plates symmetrically disposed about the thickness detecting roller.
A thickness detecting device for a sheet medium according to claim 1, wherein the angle α is within ±1°.
A thickness detecting device for a sheet medium according to claim 1, wherein a length ratio of the thickness detecting magnifying plate to the thickness detecting reflecting plate is greater than 2.
The thickness detecting device for a sheet medium according to claim 4, wherein a length ratio of the thickness detecting magnifying plate to the thickness detecting reflecting plate is less than 10.
A thickness detecting device for a sheet medium according to claim 1, wherein the thickness measuring assembly comprises a thickness sensor holder, a thickness sensor adjusting seat, an adjusting screw, and a thickness sensor, and the thickness sensor is fixed to the thickness sensor by a screw. The adjusting screw is connected to the thickness sensor bracket and the thickness sensor adjusting seat, and the position of the thickness sensor adjusting seat is adjusted by adjusting the rotation of the screw to accurately position the initial position of the thickness sensor.
A financial self-service device that includes:

a body for accommodating or installing the following components;

a human-computer interaction display device, configured to implement human-computer interaction on the body;

a banknote processing device disposed in the body for storing or discharging banknotes;

The banknote processing apparatus includes the thickness detecting device of the sheet medium according to any of claims 1-6 for detecting the thickness of the processed banknote.