CN106952396A - A kind of bending banknote flattening device based on contact heating - Google Patents

A kind of bending banknote flattening device based on contact heating Download PDF

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Publication number
CN106952396A
CN106952396A CN201710224673.9A CN201710224673A CN106952396A CN 106952396 A CN106952396 A CN 106952396A CN 201710224673 A CN201710224673 A CN 201710224673A CN 106952396 A CN106952396 A CN 106952396A
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CN
China
Prior art keywords
drive roll
banknote
heater
roller
exhibition
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Granted
Application number
CN201710224673.9A
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Chinese (zh)
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CN106952396B (en
Inventor
田凌
陈俊宇
张承巍
刘果
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Tsinghua University
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Tsinghua University
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Priority to CN201710224673.9A priority Critical patent/CN106952396B/en
Publication of CN106952396A publication Critical patent/CN106952396A/en
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Publication of CN106952396B publication Critical patent/CN106952396B/en
Expired - Fee Related legal-status Critical Current
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    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D11/00Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
    • G07D11/10Mechanical details
    • G07D11/16Handling of valuable papers
    • G07D11/175Flattening, e.g. straightening out folds
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D2211/00Paper-money handling devices

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Abstract

A kind of bending banknote flattening device based on contact heating, belongs to automatic teller equipment technology field.The device includes exhibition roll assembly, heater and passes the parts such as paper money track;Exhibition roll assembly includes preceding drive roll, middle drive roll, rear drive roll, preceding hold-down roller and the rear hold-down roller of equal diameters;Preceding drive roll, middle drive roll and rear drive roll forming V-shape arrangement, and preceding drive roll and rear drive roll respectively with preceding hold-down roller and rear hold-down roller mounted in pairs.The present invention uses contact heating mode, and give the function that the radius of each exhibition roller exists with heating-up temperature, under conditions of the minimum exhibition roller radius of known permission, the minimum temperature required for the flattening effect realized and required can be calculated, it is to avoid heater temperature is too high to influence the security of surrounding plastic;Conducted heat by tubular heat transmission belt, the efficiency of heating surface is high, thermal inertia is small, easily controllable.The structure of the device has used typical transmission means, it is easy to form seriation, modular design.

Description

A kind of bending banknote flattening device based on contact heating
Technical field
The present invention relates to a kind of device for flattening bending banknote, more particularly to a kind of bending banknote exhibition based on contact heating Leveling device, can be arranged in ATM as a module, play a part of flattening bending banknote, belong to automatic teller dress Standby technical field.
Background technology
The biography paper money module of ATM is a kind of typical media transportation mechanism, it is necessary to which paper banknote high speed is sent into finger Positioning is put.In storing process of the banknote in ATM, it can be occured bending and deformation because of the comprehensive function of factor such as power, heat, from And influence banknote passing the transmitting procedure of paper money module.A kind of typical the reason for is banknote resting period mistake in the reel of bending It is long, due to the viscoelastic property that banknote material has, under conditions of additional deformation is constant, it may occur that stress relaxation, banknote The permanent flexural deformation of generation.If the degree of crook of banknote in itself is excessive, the attractive in appearance of banknote can be influenceed, and cause card paper money rate Significantly improve.In order to reduce the card paper money rate of ATM, it is necessary to be thought of as overbending in the design process that ATM passes paper money module Banknote corresponding flattening function is provided.
Flattening process is exactly to allow banknote to be changed into the less state of degree of crook from the larger state of degree of crook, is substantially One allow banknote occur back-flexing deformation process;Because the transmitting procedure of the banknote in ATM requires to pass paper money speed soon, therefore And be difficult to realize flattening by prolonged viscoelastic deformation, can only by the external load of deep camber, cause banknote Plastic deformation, and then realize back-flexing, that is, flatten.It is this by external force allow banknote occur back-flexing when, the external force of loading " loading curvature " can be used, i.e., act on the bending curvature of lower banknote to describe by external force, if generating plastic deformation, banknote Can occur permanent flexural deformation after external force release.
Banknote is as handled object, except paper, and the material for some banknotes also having is plastics, such as in the big profit of Australia The countries such as Asia, Vietnam, plastics paper money is widely used.Paper and plastics are all the material with complex of high molecular polymer composition, its power Learn the function that characteristic is temperature.With the change of temperature, under the conditions of same stress loading, can show different should cash As.Power and temperature are to influence the principal element of flexible media flexural deformation.
Ge Jia ATMs manufacturer in the market does not provide the product for including flattening functional module also.Ground at some There is provided the technical scheme that some are flattened by the method for mechanics, calorifics in studying carefully;One of which is to paper money by corrugation rolls Ticket carries out reinforcement operation, improves the bending of banknote stiffness reduction, and such a scheme easily causes banknote tear;Second is by belt With banknote by the fillet that radius is 2mm, great counter curvature is loaded to banknote so that reverse plasticity shape occurs for banknote Become, flattened;Although the program can realize flattening, because to cause the banknote speed can not by the track of minor radius Improve, while can Fast Wearing belt;The third is the height that the copper rod for being about 30mm by a diameter is heated to more than 160 DEG C Temperature, while allowing banknote to pass through close to its outer rim so that reverse strain occurs for banknote, and progress flattens etc. scheme, although the program Flattening effect can also be realized, but the thermal inertia of copper rod is too big, it is difficult under the conditions of current power and operating ambient temperature The real-time control of surface temperature is realized, while the damage of the too high plastic structural part for easily causing surrounding module of temperature of heating.
The content of the invention
It is an object of the invention to provide a kind of bending banknote flattening device based on contact heating, it is set not destroy banknote In the case of, back-flexing is carried out to the papery or plastic note for causing bending because of long-term storage, the card paper money rate of ATM is reduced.
Technical scheme is as follows:
A kind of bending banknote flattening device based on contact heating, it is characterised in that the device includes exhibition roll assembly, heating Device, biography paper money track, front end support plate and rear end support plate;The exhibition roll assembly and heater are arranged on front end support plate and rear end branch On plate;The exhibition roll assembly includes preceding drive roll, middle drive roll, rear drive roll, preceding hold-down roller and the rear hold-down roller of equal diameters, Preceding drive roll, middle drive roll and rear drive roll forming V-shape arrangement, preceding drive roll and rear drive roll are compressed with preceding hold-down roller and afterwards respectively Roller mounted in pairs;
There is relationship below with heating-up temperature in the radius of each exhibition roller:
Δ y=-0.054+0.00053T+0.33r-1+0.00052·T2-1.3×10-6·r-2+-0.54·T·r-1
In formula:Δ y is the Curvature varying amount after banknote discharges, and unit is mm-1, the temperature that T is heated to for banknote, unit For DEG C, r for exhibition roller radius, span be 8≤r≤30, unit is mm;
The biography paper money track includes upper strata guide rail plate and lower floor guide rail plate, the preceding drive roll, middle drive roll and rear active Roller is located at the top of upper strata guide rail plate, and preceding hold-down roller, rear hold-down roller and heater are located at the lower section of lower floor guide rail plate;
The outside of the heater is tubular heating tape, and inside uses ceramic heating flake, tubular heating tape and middle active Roller lower contact and therewith mutual compression.
In above-mentioned technical proposal, it is characterised in that:The preceding drive roll, middle drive roll, rear drive roll, preceding hold-down roller and after Hold-down roller is constituted by a roll shaft and multiple heat resistant rubber wheels being enclosed within roll shaft.
Preferably, the one-to-one roller in position with heat resistant rubber wheel is provided with the upper strata guide rail plate and lower floor guide rail plate Take turns grid.
In above-mentioned technical proposal, it is characterised in that:Described heater also includes upper cover plate and lower carriage;Ceramic heat Piece is placed between lower carriage and upper cover plate, and tubular heating tape is wrapped in outside ceramic heating flake.
Preferably, one is symmetrical arranged in the both sides of upper cover plate is used for the positioning boss of heater axially position, rear Hold support plate provided with one it is consistent with the rear end shapes and sizes of the lower carriage of heater, for supporting and installing heater Support rim, there is one to be used to supporting and installing the mounting hole of heater on front supporting plate.
Technique effect of the present invention with advantages below and protrusion:1. the bending of present invention banknote by experimental study becomes Shape characteristic, the method that Quadratic Surface Fitting is used to the data that experiment is obtained, it is that smooth banknote generation is permanent originally to give Empirical equation between the Curvature varying amount and temperature of flexural deformation, loading curvature, i.e., each open up the radius and heating-up temperature of roller The relational expression of presence.2. contact heating heated object can be heated in a short time it is identical with heat source temperature, especially It is to be approximately equal to zero when its heating required time is contacting good with thermal source in this thin-film material of heating banknote.3. cylinder Shape heat transmission belt can directly use the fixing film in printer, without designed, designed and manufacture.Can be with fast by tubular heat transmission belt Fast heat conduction, tubular heat transfer tape thickness is very frivolous, and thermal inertia is small, and the heat for heating this medium needs is few, and preheating time is short.④ The temperature of ceramic heating flake is easily controllable, it is possible to achieve accurately heated in a certain temperature range, and then controls flattening effect;It is logical Cross and control heating-up temperature using ceramic heating flake, can avoid because the high temperature on heater block surface and the contact force directly contacted The damage that comprehensive function is caused to banknote.
Brief description of the drawings
Fig. 1 is the corresponding relation figure between 100 yuans of banknote bending curvatures and action.
A kind of three-dimensional structure of the embodiment for bending banknote flattening device based on contact heating that Fig. 2 provides for the present invention Schematic diagram.
Fig. 3 is that banknote flattening device removes the three dimensional structure diagram after the support plate of front end.
Fig. 4 is the three dimensional structure diagram that heater is checked from front upper place visual angle.
Fig. 5 is the three dimensional structure diagram checked from back lower place visual angle of heater.
Fig. 6 is the rearview of heater.
Fig. 7 is the three dimensional structure diagram for opening up the single exhibition roller in roll assembly.
Fig. 8 is the isometric three dimensional structure diagram for passing paper money track.
Fig. 9 is the isometric three dimensional structure diagram checked from front viewing angle of front end support plate of the present invention.
Figure 10 is the isometric three dimensional structure diagram checked from front viewing angle of rear end support plate of the present invention.
In figure:1- heaters, 101- ceramic heating flakes, 102- upper cover plates, 103- lower carriages, 104- tubulars heat transmission belt, 105- positioning boss, 2- front ends support plate, 201- mounting holes, 3- exhibitions roll assembly, drive roll, 303- before hold-down roller, 302- before 301- Hold-down roller, 4- heat resistant rubbers wheel, 5- rear ends support plate, 501- support rims, 6- are passed after drive roll, 305- after middle drive roll, 304- Paper money track, 601- upper strata guide rails plate, 602- lower floor guide rails plate, 7- roll shafts, 8- disk roller grids.
Embodiment
The theory structure of the present invention is described further below in conjunction with the accompanying drawings:
Fig. 1 is the corresponding relation figure between 100 yuans of banknote bending curvatures and action.The flexural deformation of banknote can be with Weighed with " action " or " curvature " of banknote.Relation between action and curvature is simple geometrical relationship, for a certain Individual curvature, after arc length determination, it is possible to calculate corresponding action by geometry derivation.Particularly, for 100 yuan of people People's coin, is fixed value 77mm because its arc length is exactly the width of banknote, can calculate action and curvature by geometric Corresponding relation, as shown in figure 1, transverse axis be curvature, the longitudinal axis is action, as can be seen from the figure in sizable scope the two With linear relationship.If for example, its action of banknote is 10mm, can be read by Fig. 1, its curvature is about 0.14mm-1
Experimental studies have found that, in certain temperature range, paper and plastics for manufacturing banknote meet following bending Deformation rule:As the rise of temperature and the change of loading curvature are big, the Curvature varying amount after banknote release is bigger.Thus it is determined that , it is necessary to know initial banknote curvature range, by the banknote curvature model to be reached after flattening device during the design parameter of structure Enclose, and then calculate corresponding Curvature varying amount, according to the limitation of Curvature varying amount and temperature and loading curvature in itself come really Fixed final structural parameters.In general, loading curvature is to use biography paper money track or certain Radius with a certain radius of curvature Exhibition roller realize that loading curvature is the minimum profile curvature radius of used biography paper money track or the inverse for opening up roller radius;Temperature Degree can be realized by adding heating element heater.Because banknote is passing paper money track or the exhibition by minor radius by small radius of curvature Card paper money rate can be lifted during bending, so the design of whole flattening device is substantially to reach good flattening effect, this The indexs such as power, the card paper money rate of device have been weighed in invention, have carried out the optimization design of structural parameters.Flattening device is exactly by adding Hot banknote reaches certain temperature, certain counter curvature is loaded to banknote, so as to realize the flattening of bending banknote.
The data that experiment is obtained are used the side of Quadratic Surface Fitting by the flexural deformation characteristic of banknote by experimental study Method, gives the warp between the Curvature varying amount and temperature, loading curvature that are originally smooth banknote generation permanent bending flexion Formula is tested, i.e., the radius of each exhibition roller has relationship below with heating-up temperature:
Δ y=-0.054+0.00053T+0.33r-1+0.00052·T2-1.3×10-6·r-2+-0.54·T·r-1
Wherein:Δ y is the Curvature varying amount after banknote discharges, and unit is mm-1, the temperature that T is heated to for sign banknote, Unit for DEG C;R is the radius of exhibition roller used, and unit is mm, and span is 8mm≤r≤30mm, and it is curved that sign banknote is loaded Bent external force.
Due to banknote by bending become it is smooth with by the smooth deformation process as being substantially that buckles, according to this experience Formula, will realize a certain specific flattening effect (being represented with Δ y), can give series of temperature (being represented with T) and loading is bent The combination of rate (being characterized with r, be r inverse), these combinations can realize the flattening effect of requirement, can be therefrom when implementing Select low-power, the scheme of low-calorie paper money rate.
Such as the structural representation of Fig. 2, Fig. 3 for the present invention.The device includes exhibition roll assembly 3, heater 1, passes paper money track 6th, front end support plate 2 and rear end support plate 5;The exhibition roll assembly 3 and heater 1 are arranged on front end support plate 2 and rear end support plate 5; The exhibition roll assembly includes five exhibition rollers that shape size is identical but position is different:Preceding drive roll 302, middle drive roll 303, rear master Dynamic roller 304, preceding hold-down roller 301 and rear hold-down roller 305, the preceding drive roll 302, middle drive roll 303 and rear drive roll 304 are into V Shape arrange, the preceding hold-down roller 301 and rear hold-down roller 305 respectively with preceding drive roll and rear drive roll mounted in pairs;Each exhibition roller It is arranged on by bearing on front end support plate 2 and rear end support plate 5.
Pass upper strata guide rail plate 601 and lower floor guide rail that paper money track 6 includes carrying out the transmitting procedure of banknote spacing and guiding Plate 602, preceding drive roll 302, middle drive roll 303 and rear drive roll 304 be located at upper strata guide rail plate top, preceding hold-down roller 301, after Hold-down roller 305 and heater 1 are located at the lower section of lower floor guide rail plate;
Rotation of the device by opening up roll assembly 3 make it that banknote is realized and passing the transmission in paper money track 6, and the power of transmission can be with Realized by external motor and transmission mechanism.
Fig. 4, Fig. 5 and Fig. 6 are the structural representation of the heater of the present invention.On mode of heating, present invention uses Tubular heat transmission belt wraps up ceramic heating flake as heater, and tubular heat transmission belt directly uses fixing film, is a kind of quick, efficient Mode of heating, without self design;The electric energy of heater is provided can be connected to heating pottery by external circuit Realized on the electrode of ceramics;The heater 1 includes ceramic heating flake 101, tubular heat transmission belt 104, lower carriage 103 and upper cover plate 102, tubular heat transmission belt 104 is located at the lower section of middle drive roll 303 of exhibition roll assembly and mutually compressed therewith, and ceramic heating flake 101 is put Between lower carriage 103 and upper cover plate 102, tubular heat transmission belt 104 is wrapped in ceramic heating flake 101, lower carriage 103 and upper cover plate 102 outside.Apparent relative position between ceramic heating flake 101, tubular heat transmission belt 104, lower carriage 103, upper cover plate 102 Put the rearview that relation is provided referring to Fig. 6.
One is symmetrical arranged in the both sides of upper cover plate 102 is used for the positioning boss 105 of the axially position of heater 1, rear Hold support plate provided with one it is consistent with the shapes and sizes of the rear end of lower carriage 103 of heater 1, for supporting and installing heating The support rim 501 of device 1;With reference to Fig. 9, there is the mounting hole 201 for supporting and installing heater 1 on front supporting plate, plus The front end of thermal 1 is stretched out from the mounting hole 201 of front end support plate 2;The shape of the rear end of heater 1 as can be seen from Figure 5, The support rim for being used to support on the particularly shape of the hollow space of lower carriage 103, the rear end support plate 5 provided with reference to Figure 10 501 shape, it is known that support rim 501 stretches into the rear end of the hollow space of lower carriage 103.
When the banknote of bending is by the present invention, the rotation of exhibition roller drives banknote to be transmitted along paper money track is passed, in warp When crossing heater, tight on the heating by exhibition roll-in, banknote is heated rapidly, simultaneously as banknote is wrapped in exhibition roller On, back-flexing is there occurs, and then the flattening of bending banknote can be realized.
In reinforcing mode, make the process of banknote back-flexing to certain curvature more controllable to realize, while by paper money Ticket is compressed realizes contact heating on the heating, and the reinforcing mode that the present invention is used is banknote is wrapped up in transmit process The firmly exhibition roller mode of certain radius.
Fig. 7 is the single structural representation for opening up roller embodiment.The preceding drive roll 302, middle drive roll 303, rear drive roll 304th, preceding hold-down roller 301 and rear hold-down roller 305 are constituted by a roll shaft 7 and multiple heat resistant rubber wheels 4 being enclosed within roll shaft, will Multiple heat resistant rubber wheels are uniformly enclosed within roll shaft, heat resistant rubber wheel is corresponded with passing the disk roller grid 8 on paper money track. Shown in the structural representation for passing paper money track such as Fig. 8, it is provided with upper strata guide rail plate and lower floor guide rail plate with the position of rubber wheel one by one Corresponding disk roller grid 8, for rubber wheel to be stretched into guide rail interior.
Embodiment:In view of the specific operating mode in ATM, on the one hand in order to allow banknote at a high speed by when avoid card paper money, Seek radius r >=8mm of exhibition roller, it is contemplated that the compactedness of structure, it is desirable to r≤30mm;On the other hand in order to reduce other plastics knots The security risk of component and the power for reducing device, the temperature of heating are more low better, are understood by empirical equation in r ∈ [8,30] area Between when, Δ y is constant, then r it is bigger, it is necessary to T it is bigger, so in order that T is minimum, to select the r, i.e. r=8mm of minimum;Device Specific flattening performance be to realize to be flattened script action for 14-15mm banknote, the action after flattening is less than 5mm, It is 10mm to realize action variable quantity, according to the linear property of Fig. 1 curves, it is known that its Curvature varying amount is 0.14mm-1, that is, require Δ y =0.14, rule of thumb formula, substitutes into r=8, Δ y=0.14, you can the value for calculating T is 67 DEG C, can now realize Δ y= While 0.14, meet physical dimension and limit and make it that device general power is minimum.

Claims (5)

1. a kind of bending banknote flattening device based on contact heating, it is characterised in that the device includes exhibition roll assembly (3), added Thermal (1), biography paper money track (6), front end support plate (2) and rear end support plate (5);The exhibition roll assembly (3) and heater (1) peace On front end support plate (2) and rear end support plate (5);
The preceding drive roll (302) of the exhibition roll assembly including equal diameters, middle drive roll (303), rear drive roll (304), preceding pressure Tight roller (301) and rear hold-down roller (305), preceding drive roll (302), middle drive roll (303) and rear drive roll (304) forming V-shape arrangement, Preceding drive roll and rear drive roll respectively with preceding hold-down roller and rear hold-down roller mounted in pairs;
There is relationship below with heating-up temperature in the radius of each exhibition roller:
Δ y=-0.054+0.00053T+0.33r-1+0.00052·T2-1.3×10-6·r-2+-0.54·T·r-1
In formula:Δ y is the Curvature varying amount after banknote discharges, and unit is mm-1, the temperature that T is heated to for banknote, unit is ℃;R is the radius of exhibition roller, and span is 8mm≤r≤30mm;
It is described biography paper money track (6) include upper strata guide rail plate (601) and lower floor guide rail plate (602), the preceding drive roll (302), in Drive roll (303) and rear drive roll (304) are located at the top of upper strata guide rail plate, preceding hold-down roller (301), rear hold-down roller (305) and Heater (1) is located at the lower section of lower floor guide rail plate;
The outside of the heater (1) is tubular heating tape (104), and inside is using ceramic heating flake (101), tubular heating tape Compress therewith with middle drive roll (303) lower contact and mutually.
2. according to a kind of bending banknote flattening device based on contact heating described in claim 1, it is characterised in that:Before described Drive roll (302), middle drive roll (303), rear drive roll (304), preceding hold-down roller (301) and rear hold-down roller (305) are by one Roll shaft (7) and multiple heat resistant rubber wheel (4) compositions being enclosed within roll shaft.
3. according to a kind of bending banknote flattening device based on contact heating described in claim 2, it is characterised in that:On described The one-to-one disk roller grid (8) in position with heat resistant rubber wheel (4) is provided with layer guide-rail plate and lower floor guide rail plate.
4. according to a kind of bending banknote flattening device based on contact heating described in claim 1, described heater (1) Also include upper cover plate (102) and lower carriage (103);Ceramic heating flake (101) be placed in lower carriage (103) and upper cover plate (102) it Between, tubular heating tape is wrapped in outside ceramic heating flake.
5. according to a kind of bending banknote flattening device based on contact heating described in claim 4, it is characterised in that:In Shang Gai The both sides of plate (102), which are symmetrical arranged one, is used for the positioning boss (105) of heater (1) axially position, on the support plate of rear end Provided with one it is consistent with the shapes and sizes of lower carriage (103) rear end of heater (1), for supporting and installing heater (1) support rim (501), there is the mounting hole (201) for supporting and installing heater (1) on front supporting plate.
CN201710224673.9A 2017-04-07 2017-04-07 A kind of bending banknote flattening device based on contact heating Expired - Fee Related CN106952396B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108091034A (en) * 2017-11-15 2018-05-29 芜湖乐佳自动化机械有限公司 A kind of bank's cleaning-sorting machine and its application method with function of flattening

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CN203966232U (en) * 2014-05-28 2014-11-26 昆山古鳌电子机械有限公司 Bill receiving and dispensing apparatus and cash automated trading device thereof
CN105160760A (en) * 2015-10-09 2015-12-16 广州广电运通金融电子股份有限公司 Flattening apparatus and financial self-service equipment
CN105654613A (en) * 2016-01-12 2016-06-08 广东工业大学 Automatic banknote arranging device
CN106327675A (en) * 2016-11-22 2017-01-11 重庆邮电大学 Banknote arranging device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100837896B1 (en) * 2007-03-02 2008-06-13 안재건 A paper money apparatus to correct
CN202795548U (en) * 2012-09-03 2013-03-13 林雨琪 Device for expanding wrinkles of paper money stored in bank
CN203966232U (en) * 2014-05-28 2014-11-26 昆山古鳌电子机械有限公司 Bill receiving and dispensing apparatus and cash automated trading device thereof
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CN105654613A (en) * 2016-01-12 2016-06-08 广东工业大学 Automatic banknote arranging device
CN106327675A (en) * 2016-11-22 2017-01-11 重庆邮电大学 Banknote arranging device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108091034A (en) * 2017-11-15 2018-05-29 芜湖乐佳自动化机械有限公司 A kind of bank's cleaning-sorting machine and its application method with function of flattening

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