CN2272596Y - Accuracy improved note counter - Google Patents

Abstract

The utility model relates to an accuracy improved bank note counter. A separation part of an ordinary bank note counter or an ordinary counterfeit bank note checking counter is additionally provided with a bank note separation detection device. The device is composed of a sensor, an amplifying circuit, a comparison circuit and a drive circuit; an output of the sensor is connected with the amplifying circuit; the amplifying circuit is connected with the comparison circuit; the comparison circuit is connected with the drive circuit; a contact tip (10) of the sensor is contacted with the face of a checking bank note (16); a supporting wheel (9) is used for supporting the checking bank note (16). The utility model has the advantage that counting error caused by ' double pieces passing ' of the bank note can be avoided; thus, bank note counting accuracy rate is improved.

Description

The improved paper money counter of counting accuracy rate

The utility model relates to paper money counter, relates in particular to its note distribution device.

In the market the paper money counter of Xiao Shouing by note distribution, send paper money, counting or examine pseudo-counting, reason paper money etc. is partly formed, the note distribution part is treating that banknote a little to be checked is divided into one by one, successively enter and send the paper money part, behind counting or inspection spurious count, partly put in order by reason paper money, its weak point is to stick together when the two pieces of paper coin, when the sth. made by twisting paper money wheel of note distribution part can not separate them, pass through counting assembly, though be two, counting or 1, obviously, the existence of this " crossing two opening " has also caused the paper money counter counting error, becomes the technical barrier of the long-term manufacturer that puzzling.

The purpose of this utility model is to avoid above-mentioned weak point, and the paper money counter that does not have " crossing two opening " counting error is provided.

The utility model can reach by following technology:

Partly set up the banknote pick-up unit of saying good-bye in the note distribution of common paper money counter, this device is made up of sensor, amplifying circuit, comparator circuit, driving circuit, sensor output connects amplifying circuit, amplifying circuit connects comparator circuit, comparator circuit connects driving circuit, the contact of sensor simultaneously contacts with banknote to be checked, and support member is held banknote to be checked.

The utility model advantage has been avoided the counting error that caused by " cross two open ", has improved the counting accuracy rate.

Below in conjunction with accompanying drawing the utility model is described in detail.

Accompanying drawing 1, the utility model are implemented illustration

2, the banknote of the present utility model pick-up unit block diagram of saying good-bye

3, the banknote of the present utility model pick-up unit sensor construction figure that says good-bye.

4, the banknote of the present utility model pick-up unit electrical schematic diagram of saying good-bye

As shown in Figure 1, the utility model by note distribution, send that paper money, counting inspection is pseudo-, reason paper money etc. partly forms, comprise paper money counter support (1), paper money sending device (2), twist with the fingers paper money wheel (3), money out wheel pair (4), reason paper money device (5), light checking device (6), counting assembly (7), send paper money band (8), and partly set up the banknote pick-up unit of saying good-bye in note distribution.As shown in Figure 2, the banknote pick-up unit of saying good-bye is made up of linear displacement transducer, amplifying circuit, comparator circuit, driving circuit, and the output of linear displacement transducer connects amplifying circuit, and amplifying circuit connects comparator circuit, and comparator circuit connects driving circuit.Linear displacement transducer as shown in Figure 3, by magnet steel (11), magneto sensor (15), contact (10), cantilever (12), flexible connection piece (13), support (14), form as the support wheel (9) of support member, contact (10) is ball bearing or sliding bearing, be advisable with ball bearing, it contacts with the one side of banknote to be checked (16), support wheel (9) is held banknote to be checked (16), and banknote to be checked (16) moves between contact (10) and support wheel (9).The cantilever (12) that has contact (10) is with magnet steel (11), has magneto sensor (15) on the lower and upper cross-member of support (14), utilize flexible connection piece (13) up and down, cantilever (12) and support (14) fuse, and magneto sensor (15) has certain interval l with magnet steel (11) ₁With l ₂As shown in Figure 4, be amplifying circuit in the frame of broken lines of the left side, by amplifier A ₁, A ₂, resistance R ₁～R ₇, capacitor C ₁～C ₃Form, the signal from the linear displacement transducer input is exchanged amplification, be prior art; Comparator circuit in the dashed middle line frame is for two identification level comparison circuit, by comparer A ₃, R ₈, W ₁Constitute, preset the reference level of the signal level of individual coin thickness as identification at its in-phase end, the reference level value is taken a sample by presetting identification reference level unit, and this unit is by potentiometer W ₁, R ₈Constitute, be prior art.Driving circuit is by triode BG, and R ₉, R ₁₀, R ₁₁Constitute, when the two signals of opening of comparator circuit output, the BG conducting also provides enough electric currents, in order to output mechanisms such as driving relay J, is prior art.

When a new Renminbi, its thickness is about 0.06mm, old Renminbi, its thickness is about 0.1mm, during by contact (10), promptly when thickness less than 0.1 bank note by the time, sensor cantilever (12) is risen, produce perpendicular displacement, gap l ₁, l ₁, change, the internal resistance that magnetic is imitated element (15) also changes thereupon, export a voltage signal, pick-up unit is disregarded but banknote is said good-bye, when the thickness of bank note approximately greater than 0.1mm, when passing through for the two pieces of paper coin, gap l ₁, l ₂Produce bigger variation; the voltage signal that sensor output is directly proportional with displacement; the banknote pick-up unit of saying good-bye is amplified, is compared, is passed to driving circuit, driven work such as relay J; paper money counter is shut down; the two shabby coin of opening bank note or approaching two Zhang Houdu of unusual mistake are detected, thereby have improved the counting accuracy rate of paper money counter.

Claims (2)

1, the improved paper money counter of counting accuracy rate, by note distribution, send paper money, counting or examine pseudo-counting, the reason paper money partly form, it is characterized in that: the banknote pick-up unit of saying good-bye is partly set up in note distribution, this device is made up of sensor, amplifying circuit, comparator circuit, driving circuit, the output of sensor connects amplifying circuit, and amplifying circuit connects comparator circuit, and comparator circuit connects driving circuit, the contact of sensor (10) contacts with the one side of banknote to be detected (16), and support member is held banknote to be checked (16).

2, by described paper money counter of claim 1 or the pseudo-paper money counter of inspection, it is characterized in that said sensor is a linear displacement transducer, form by magnet steel (11), magneto sensor (15), contact (10), cantilever (12), flexible connection piece (13), support (14) support wheel (9), the cantilever (12) that has contact (10) is gone up with magnet steel (11), has magneto sensor (15) on the lower and upper cross-member of support (14), utilize flexible connection piece (13) up and down, cantilever (12) and support (14) fuse, and magneto sensor (15) has certain interval with magnet steel (11).

Images