CN2103833U

CN2103833U - Automatic machine for inspecting and counting paper currency

Info

Publication number: CN2103833U
Application number: CN91227193U
Authority: CN
Inventors: 容维恩
Original assignee: YONGSHUN HARDWARE TOOL FACTORY HETANG XINHUI COUNTY
Current assignee: YONGSHUN HARDWARE TOOL FACTORY HETANG XINHUI COUNTY
Priority date: 1991-10-20
Filing date: 1991-10-20
Publication date: 1992-05-06

Abstract

The utility model provides an automatic machine for inspecting and counting paper currency which overcomes the defect of prior machine for inspecting and counting paper currency and has the advantages of precise paper currency inspecting and counting, small volume and low cost. The utility model comprises a paper currency transmitting mechanism, a clutch mechanism, a paper currency inspecting and counting control element and a control circuit.

Description

Automatic machine for inspecting and counting paper currency

The utility model is the improvement to common automatic currency detecting and currency counting machine.

Existing currency detecting and currency counting machine structure comprises: one, defeated paper money mechanism, be made up of motor, banknote counting wheel, bank note separating wheel, banknote feeding frame, the money supporting plate that automatic startup infrared ray launches and receives pipe is housed and paper-note conveying belt.Two, clutch comprises castle wheel and electromagnet.Three, the paper money control element is given in counting automatically, comprises that being contained near the counting opto-electronic conversion infrared ray launches and receives pipe of paper-note conveying belt, currency examine light source ultraviolet light and counterfeit money check receives photoresistance cds.Four, operation circuit comprises power supply light source board, relay board, display board, full control panel.Above-mentioned currency detecting and currency counting machine, because the imperfection of defeated paper money mechanism and clutch design causes note distribution inaccurate, counterfeit money goes out paper money and can not guarantee at first or second.Light path system is arranged improper, causes to be subject to the ambient light influence.Currency examine receiving element inaccurate makes the currency examine process be subject to the influence of voltage fluctuation and produces error.

The purpose of this utility model is the shortcoming that overcomes above-mentioned currency detecting and currency counting machine, and the automatic currency detecting and currency counting machine that a kind of currency examine counting is accurate, volume is little, cost is low is provided.

Fig. 1 is the structural representation of a kind of embodiment of the utility model;

Fig. 2 is a power circuit diagram;

Fig. 3 is automatic starting circuit figure;

Fig. 4 is counting demonstration and note distribution control circuit figure;

Fig. 5 is paper money checking circuit figure;

Fig. 6 is reset circuit figure;

Below the automatic currency detecting and currency counting machine of the utility model is described in detail:

One, defeated paper money mechanism: by motor 1, banknote counting wheel 5, bank note separating wheel 10, be equipped with automatic startup infrared ray launches and receives pipe 6 money supporting plate 4, go out paper money impact damper 11, banknote receiving plate 13 and the note support switch 12 that is contained on the banknote receiving plate is formed.Go out the paper money impact damper and made by the soft thing of bar shaped (as hairbrush), replaced the banknote feeding frame and the paper-note conveying belt of prior art, it is effective and machine volume is diminished that it goes out paper money, and cost reduces.

Two, clutch: adopt lever principle to drive friction pulley 3 control banknote counting wheels commentaries on classics and stop, guaranteed that note distribution and counterfeit money go out the accuracy of paper money by electromagnet 2.

Three, the paper money control element is given in counting: be made up of the blue silicon photocell 8 of counting opto-electronic conversion infrared ray launches and receives pipe 9, ultraviolet light 7, currency examine element that is contained between bank note separating wheel and the banknote counting wheel.Adopt synchronous control mode to guarantee of the same position daylighting of each currency examine at the banknote face.Blue silicon photocell has replaced the photoresistance cds of prior art, and daylighting peak value and bank note wavelength of fluorescence coincide, and detection sensitivity and consistance improve.The effect of being in the light of adding light barrier and going out the paper money impact damper has overcome the influence of ambient light basically.

Four, operation circuit: comprise power circuit, automatic starting circuit, counting demonstration and note distribution operation circuit, paper money checking circuit, reset circuit.

1, power supply, circuit: see Fig. 2

Alternating current 220V must exchange 24V, 12V, 9V through transformer.Exchange 24V through bridge heap Dz3 rectification, C3 filtering, the R3 current limliting gets the 24V direct current and uses for the electromagnet of control clutch.Exchange 9V through bridge heap Dz1 rectification, C1 filtering, the R2 current limliting, it is effective for infrared to get the 9V direct current, hummer usefulness, the relay of control motor and purple light pipe is used.Exchange 12V through bridge heap Dz2 rectification, C2 filtering is after 7812 voltage stabilizings again through C4 filtering, must be made the control circuit board power supply by a stable direct current 12V.

2, automatic starting circuit: see Fig. 3

Be placed on the money supporting plate as banknote, promptly block automatic startup electric eye S1 for high, it is low that U3E is output as; The banknote receiving plate banknote has been taken sky simultaneously, and promptly note support switch S 2 is high, and U3D is output as low.At this moment, U13D is output as height, triggers U10B and produces a pulse signal B, and B is used for reset counter (meeting F1614-B), counting zero clearing when promptly at every turn starting.B makes the Q10A upset simultaneously, and Q is output as low, and Q5, Q4 end, and electromagnet discharges, and banknote counting wheel starts, and begins to rub with the hands paper money.A is the stop end, and when A was high level, Q was output as height, Q5, Q4 conducting, electromagnetic actuation, stop banknote counting wheel.R is a reset signal, be used for start or counterfeit money when resetting to counter O reset and discharge banknote counting wheel.

3, counting demonstration and note distribution control circuit: see Fig. 4

When counting electric eye S3, produce pulse enter counter U6 counting as banknote, through U7 decoding, three seven sections show on the cloudy charactrons altogether the banknote number of process.In the process of counting, 100 of counter U6 outputs, 20,10 note distribution signals, through the selected note distribution signal gating of operator, just can note distribution on selected number, output is rubbed paper money stop signal A with the hands to Fig. 3-A, and stop is rubbed paper money with the hands, the realization note distribution.B is reset signal (coming from Fig. 3-B), is used for starting or counting zero clearing when resetting.

4, paper money checking circuit: see Fig. 5

Under ultraviolet excitation, general counterfeit money can produce stronger fluorescence, the fluorescence that genuine notes are excited then a little less than.The generation current signal was input to operational amplifier U17 after the blue silicon photocell S4 of currency examine element received fluorescence signal.U17 is the current-voltage converter of a low input impedance, and U17 exports a magnitude of voltage and amplifies to voltage amplifier U15A.The output of U15A is exactly the magnitude of voltage of banknote that distinguishes the true from the false.U15D and R18, K19 form a voltage comparator.When genuine notes when the S4, fluorescence a little less than, U15A output is U15(+) terminal voltage is lower than U15D(-) terminal voltage, U15D is output as low, can not trigger the U11A upset, machine continues currency examine.When counterfeit money process S4, fluorescence is stronger, and U15D(+) terminal voltage is higher than U15D(-) terminal voltage, U15D is output as height, triggers the U11A upset, the Q end output high level of U11A, the Q6 conducting makes U14 produce oscillator signal and gives hummer, buzzer warning (VR1 is used to regulate oscillation frequency).Simultaneously, U11A(Q) end output A is to Fig. 3-A, and timely stop banknote counting wheel makes counterfeit money drop on the banknote receiving plate first.

R is the counterfeit money reset signal.As R when being high, U11A(Q) step-down, discharge stop banknote counting wheel signal; Q6 ends, and blocks U14(2) oscillator signal output, close hummer.

5, reset circuit: see Fig. 6

During start, charging makes the U8B input end fade to height by low to VCC to cll, makes the U8B output terminal produce the reset pulse of certain width when start.This swimming that resets is dashed and can be made U2A(Q) hold to high, make machine be in running status.Elsewhere, can make U3B export a high level pulse by the RUN key, this pulse and reset pulse all can be delivered to R through U12D, and the R signal is delivered to Fig. 3-R and produced banknote counting wheel reset signal and counting quenching pulse, make the counterfeit money reset signal to Fig. 5-R end, banknote counting wheel and pass hummer reset.

Get pulse signal to U2A(CLK by the RUN key) end, trigger the U2A upset.As Q when being high, be in running status, machine normal point currency examine.When Q when low, Q7 ends, the relay of control motor discharges, motor does not turn round, and is in the shutdown armed state, complete machine resets.

More than be that the structure of this automatic currency detecting and currency counting machine has been made detail analysis.Introduce the course of work of this machine below.

One, start: motor changes, and ultraviolet light is bright, and electromagnetic actuation stops banknote counting wheel, and it is complete 0 that counting shows, the note distribution number is 100 note distributions.

Two, select the note distribution number: press ORDER note distribution switch, can select 100 successively, 20,10 note distributions or not note distributions.

Three, the counting currency examine is selected: press the FUNTION key, can select not only counting but also currency examine or counting cash examining function not only.When selecting a counting not during cash examining function, motor changes, but ultraviolet light does not work.

Four, beginning counting currency examine: when the banknote receiving plate sky, put banknote and go into money supporting plate, then electromagnet discharges, and starts banknote counting wheel and begins to rub with the hands paper money, and the electric eye of counting begins counting, and simultaneously blue silicon photocell receives the fluorescence signal currency examine.When note distribution setting number was counted in counting, electromagnetic actuation, banknote counting wheel stopped to rub with the hands paper money.The number of banknote number for showing on the banknote receiving plate.If run into counterfeit money, electromagnetic actuation, banknote counting wheel stop to rub with the hands paper money, buzzer warning.This moment banknote receiving plate on first be counterfeit money.Pick up the whole banknotes of banknote receiving plate,, then remove chimes of doom and counting shows, make to be shown as 0, and restart banknote counting wheel and begin new counting currency examine once if banknote is arranged on the money supporting plate.

Five, shutdown/running is selected: press the RUN key, can set machine in running status (RUN) or stopped status (STOP).Whenever by a RUN key, complete machine resets once.When machine was in RUN, machine counting currency examine was undertaken by above-mentioned.When machine is in STOP, the motor stall, ultraviolet light is still bright, waits for counting and checking of next group banknote.

Currency detecting and currency counting machine volume is little, simple in structure automatically for this, and cost is low, and dependable performance is accurate, and is easy to operate.

Claims

1, a kind of currency detecting and currency counting machine, be made up of shell, defeated paper money mechanism, clutch, counting currency examine control element and operation circuit, said defeated paper money mechanism comprises motor, banknote counting wheel, bank note separating wheel, the money supporting plate that automatic startup infrared ray launches and receives pipe is housed, banknote receiving plate and is contained in note support switch on the banknote receiving plate; Said clutch comprises electromagnet and friction pulley; Said counting currency examine control element is included in counting opto-electronic conversion infrared ray launches and receives pipe, the ultraviolet light between bank note separating wheel and the banknote counting wheel; Said operation circuit comprises power circuit, automatic starting circuit, counting demonstration and note distribution operation circuit, paper money checking circuit, reset circuit; It is characterized in that, also contain the paper money impact damper in the said defeated paper money mechanism; Also contain blue silicon photocell in the said counting currency examine control element.

2, currency detecting and currency counting machine according to claim 1 is characterized in that said to go out the paper money impact damper be the soft thing of bar shaped.

3, currency detecting and currency counting machine according to claim 2 is characterized in that the soft thing of said bar shaped is a hairbrush.