CN102968847A - A paper sheet thickness detection device and a note processing device - Google Patents
A paper sheet thickness detection device and a note processing device Download PDFInfo
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- CN102968847A CN102968847A CN2012102795428A CN201210279542A CN102968847A CN 102968847 A CN102968847 A CN 102968847A CN 2012102795428 A CN2012102795428 A CN 2012102795428A CN 201210279542 A CN201210279542 A CN 201210279542A CN 102968847 A CN102968847 A CN 102968847A
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Abstract
The invention provides a paper sheet thickness detection device which can be disposed on an automatic note processing device and accurately detect altered notes bound with tapes. The paper sheet thickness detection device comprises a housing supporting detection rollers and reference rollers in a rotary manner, and a plurality of displacement detection sensors disposed on the upper surface, which is opposite to the detection rollers, of the housing and used for detecting displacements of the detection rollers. The paper sheet thickness detection device is used for detecting the thicknesses of paper sheets conveyed through contact parts between the reference rollers and the detection rollers. Inner rings of ball bearings are fixed to the both ends of a rotating shaft of the reference rollers and a rotating shaft of the detection rollers; outer rings of the ball bearings fixed to the ends of one of the rotating shafts of the reference rollers and the detection rollers are fixed to installation holes of the housing; and the outer rings of the ball bearings installed on the ends of the other rotating shaft of the reference rollers and the detections rollers are inserted in the installation holes of the housing.
Description
Technical field
The present invention relates to thickness detection apparatus and the bank note treatment device of paper sheet.
Background technology
Cash automated trading device carries in bank note treatment device and automatic vending machine etc. usually.Owing to will whether differentiate by the situation that adhesive tape or paper etc. has carried out altering handled bank note, so it is very important to have the bank note decision maker in this bank note treatment device and automatic vending machine etc.
Real opening put down in writing the existing bank note decision maker that the bank note that undertaken by adhesive tape or paper etc. altering etc. is differentiated in the flat 6-49442 communique (patent documentation 1) in Japan.
The thickness detection apparatus of the paper sheet that this patent documentation 1 is put down in writing has the reference roller that is driven in rotation and the measuring roll of driven rotation, and the outer ring of this measuring roll is urged on this reference roller, and connects between outer ring and the turning axle by elastomeric element.This measuring roll has the displacement detecting sensor of the displacement that detects the outer ring, and paper sheet is carried between reference roller and measuring roll, and is detected the existence of adhesive tape etc. by the displacement of outer ring.
In addition, the thickness detection apparatus of the paper sheet that TOHKEMY 2002-316746 communique (patent documentation 2) is put down in writing, the resin larger than metal by thermal expansion forms the stationary roll sectional fixture, thus, keeping stationary roll is constant with outer ring and the gap between the stationary roll sectional fixture of bearing, thereby obtains stable displacement output.
In addition, the modification method of the paper sheet thickness detection apparatus that Japanese kokai publication hei 11-91991 communique (patent documentation 3) is put down in writing is the benchmark medium to be passed through, the correction of setovering, gain correction, run-out modification between the roller.
Patent documentation 1: Japan opens flat 6-49442 communique in fact
Patent documentation 2: TOHKEMY 2002-316746 communique
Patent documentation 3: Japanese kokai publication hei 11-91991 communique
The device of patent documentation 1 record does not consider to eliminate the change of the detection sensitivity that the thermal deformation because of the housing that reference roller, measuring roll and displacement detecting sensor are installed causes.
In addition, the device of patent documentation 2 records is to the bearing of the stationary roll that reduces to cause because of temperature variation and the effective mechanism in gap of housing, but does not consider the axial thermal deformation of housing.
In addition, the device of patent documentation 3 records is the methods of correction, gain correction, run-out modification of setovering, but considers to eliminate the change of the detection sensitivity that causes because of temperature variation.
Summary of the invention
The thickness detection apparatus that the purpose of this invention is to provide a kind of paper sheet can be eliminated the thermal deformation of the housing (framework) that reference roller, measuring roll and displacement detecting sensor are installed, and can detect exactly the thickness of paper sheet and adhesive tape etc.
About above-mentioned purpose, according to the present invention, realize by following structure, a kind of thickness detection apparatus of paper sheet, it has: be installed in a plurality of reference roller on the turning axle that rotates by driving mechanism; Contact side by side and be installed in a plurality of measuring rolls on the turning axle of driven rotation with this reference roller; This measuring roll and described reference roller are rotated the housing of supporting; Be configured in the upper surface of the described housing relative with described measuring roll, and a plurality of displacement detecting sensors that the displacement of described measuring roll is detected, the thickness detection apparatus of described paper sheet detects the thickness of the paper sheet carried in the contact site between described reference roller and described measuring roll, be fixed with the inner ring of ball bearing at the two ends of the turning axle of the turning axle of described reference roller and described measuring roll, be fixed on a side the outer ring of end upper ball bearing of the turning axle of described reference roller and described measuring roll, be fixed in the mounting hole of described housing, and the outer ring that is installed in the ball bearing on the opposing party's the end of described turning axle is inserted in the mounting hole of described housing.
In addition, about above-mentioned purpose, according to the present invention, preferably, described ball bearing has the outer ring with respect to the mounting hole slip of described housing.
In addition, about above-mentioned purpose, according to the present invention, realize by following structure, a kind of thickness detection apparatus of paper sheet, it has: be installed in a plurality of reference roller on the turning axle that rotates by driving mechanism; Contact side by side and be installed in a plurality of measuring rolls on the turning axle of driven rotation with this reference roller; This measuring roll and described reference roller are rotated the housing of supporting; Be configured in the upper surface of the described housing relative with described measuring roll, and a plurality of displacement detecting sensors that the displacement of described measuring roll is detected, the thickness detection apparatus of described paper sheet detects the thickness of the paper sheet carried in the contact site between described reference roller and described measuring roll, make described housing by ester moulding, and, be fixed with the inner ring of ball bearing at the two ends of the turning axle of the turning axle of described reference roller and described measuring roll, be fixed on a side the outer ring of end upper ball bearing of the turning axle of described reference roller and described measuring roll, be fixed in the mounting hole of described housing, and the outer ring that is installed in the ball bearing on the opposing party's the end of described turning axle is inserted in the mounting hole of described housing.
In addition, about above-mentioned purpose, according to the present invention, preferably, described ball bearing has the outer ring with respect to the mounting hole slip of described housing.
In addition, about above-mentioned purpose, according to the present invention, preferably, described mounting hole is formed by metal parts, this metal parts is by based on the shaping of the described housing of resin and be embedded in integratedly.
In addition, about above-mentioned purpose, according to the present invention, preferably, from described paper sheet not between described reference roller and the described measuring roll by the time displacement 1 and have the Printing Department that has ink and do not have ink non-Printing Department described paper sheet by the time displacement 2 obtain displacement 3, this displacement 3=displacement 2-displacement 1, and from the displacement 4 of the described non-Printing Department of knowing in advance thickness T of described displacement 3, obtain the benchmark gain G by G=T/ displacement 4, and obtain the thickness of the paper sheet that passes through from described displacement detecting sensor by G * displacement 3.
In addition, about above-mentioned purpose, according to the present invention, preferably, the displacement 4 of the described non-Printing Department of n displacement detecting sensor than on once detected value changed in the situation more than the certain value, displacement 4 additions of the described non-Printing Department that will be obtained by the described displacement detecting sensor of adjacent both sides, and its 1/2 displacement 4 as n described non-Printing Department come computing and obtain, and the displacement 4 from obtaining by described computing, obtain the benchmark gain G by G=T/ displacement 4, and obtain the thickness of the paper sheet that passes through from described n displacement detecting sensor by G * displacement 3.
In addition, about above-mentioned purpose, according to the present invention, preferably, the output correction ratio of pre-stored a plurality of displacement detecting sensors, the displacement 4 of the described non-Printing Department of n displacement detecting sensor than on once detected value changed in the situation more than the certain value, output correction ratio R 1 by described n displacement detecting sensor, the displacement 4 of the output correction ratio R 2 of k displacement detecting sensor and the described non-Printing Department that obtains by described k displacement detecting sensor, the displacement 4 of described n described non-Printing Department is come computing as displacement 5 and obtain, displacement 4 * the R1/R2 of this displacement 5=k described non-Printing Department, and obtain the benchmark gain G from described displacement 5 and by G=T/ displacement 5, and obtain the thickness of the paper sheet that passes through from described n displacement detecting sensor by G * displacement 3.
The effect of invention
According to the present invention, a kind of thickness detection apparatus of paper sheet can be provided, it can eliminate the thermal deformation of the housing that reference roller, measuring roll and displacement detecting roller are installed, and can detect exactly the thickness of paper sheet and adhesive tape etc.
Description of drawings
Fig. 1 is the stereographic map of the paper sheet thickness detection apparatus of embodiments of the invention.
Fig. 2 is the cut-open view of the paper sheet thickness detection apparatus of embodiments of the invention.
Fig. 3 is the amplification view of the paper sheet thickness detection apparatus of embodiments of the invention.
Fig. 4 is the cut-open view of the paper sheet thickness detection apparatus of other embodiment of the present invention.
Fig. 5 is the cut-open view of the paper sheet thickness detection apparatus of other embodiment of the present invention.
Fig. 6 is the vertical view of the paper sheet thickness detection apparatus of other embodiment of the present invention.
Fig. 7 is the figure of displacement detecting waveform of the paper sheet thickness detection apparatus of expression embodiments of the invention.
Fig. 8 is the thickness overhaul flow chart of the paper sheet thickness detection apparatus of embodiments of the invention.
Fig. 9 is the Sketch figure of the bank note automatic processing device of embodiments of the invention.
Description of reference numerals
The thickness detection apparatus of 1 paper sheet; 2 frameworks; 3 turning axles; 4 paper sheets; 5a～5j reference roller; 6,8,14,16 ball bearing; 7,15 fixed screws; 10 turning axles; 11a～11j measuring roll; 12 outer rings; 13 elastomeric elements; 26 circuit substrates; 27a～27j displacement detecting sensor; 28a～28j displacement detecting sensor
Embodiment
Bank note treatment device and automatic vending machine etc. can be arranged in the environment that is directly exposed to extraneous air in some cases, in this case, as described above, because the temperature variation of extraneous air might make the housing (framework) of thickness detection apparatus produce thermal deformation.
For example, the reference roller shown in Fig. 1 (concrete aftermentioned) and the turning axle of measuring roll form with the strong SUS of rigidity (stainless steel), and housing (below, be called framework) form with aluminium.Because the coefficient of thermal expansion of this aluminium is the twice of SUS, so can produce distortion at the hot environment underframe.Thus, the position of the displacement detecting sensor that arranges at the upper surface of framework can displacement, thereby possibly can't detect the accurately thickness of paper sheet.
Therefore, the present inventor becomes freely situation to an end of the turning axle that makes two ends and limited by framework and has carried out considering and carry out multiple research that its result has obtained following embodiment.
Below, with reference to the description of drawings embodiments of the invention.
Utilize Fig. 1, Fig. 2, Fig. 3 that the thickness detection apparatus of the paper sheet of embodiments of the invention is described.
Fig. 1 is the roughly integrally-built overview of the thickness detection apparatus of expression paper sheet.
Fig. 2 is the cut-open view of the thickness detection apparatus of Fig. 1.
Fig. 3 is the figure that Fig. 2 is amplified.
In Fig. 1, Fig. 2, the thickness detection apparatus 1 of paper sheet is provided with by rotary drive mechanism (not shown) and transmits the reference roller 5a that revolving force rotates～5j.This reference roller 5a～5j is located on the turning axle 3.Measuring roll 11a～11j is located on the turning axle 10 and with the rotation of reference roller 5a～5j and rotates drivenly.By paper sheet from the contact site between this measuring roll 11a to 11j and the reference roller 5a～5j by the time, situation that measuring roll 11a～11j is moved upward according to the thickness of paper sheet detects the thickness of paper sheet.Be located on the circuit substrate 26 on top of measuring roll 11a～11j displacement detecting sensor 27a～27j and the 28a～28j of Eddy current displacement sensor etc. are installed.Reference roller 5a～5j and measuring roll 11a～11j dispose a plurality of in paper sheet throughput direction and right angle orientation, can detect the whole zone of paper sheet.
Turning axle 3,10 both ends are installed on the framework 2 via ball bearing (being also referred to as ball bearing) 6,8,14,16.This ball bearing 6,8,14,16 inner ring are fixing by stop screw 7,15,17 (shown in Figure 2).Pushing force between reference roller 5a～5j and the measuring roll 11a～11j is set by the distance between axles of turning axle 3 and 10.The circuit substrate 26 that displacement detecting sensor 27a～27j and 28a～28j are installed is fixed on the framework 2.
Above-mentioned measuring roll 11a～11j is at the outer ring 12 that the cylinder-like part by metal etc. consists of and the elastomeric element 13 that is filled with the softness of rubber etc. between this outer ring 12 and turning axle 10.In addition, as shown in Figure 2, above-mentioned elastomeric element 13 also can divide cedes territory to be located on the both ends of outer ring 12.In addition, described elastomeric element 13 and outer ring 12 can bond or non-bonding.Thus, when paper sheet between reference roller 5a～5j and the measuring roll 11a～11j by the time, thereby 13 of elastomeric elements produce the distortion of the amount of thickness of paper sheet outer ring 12 is moved upward.Detect this amount of movement and the output displacement detecting signal V corresponding with the thickness of paper sheet by displacement detecting sensor 27a～27j and 28a～28j.
Like this, by installing integratedly at the circuit substrate 26 that framework 2 is provided with reference roller, measuring roll and displacement detecting sensor, thereby vibrate with same-phase with respect to transmitting the vibration that comes from the outside, the impact of therefore not vibrated has the effect that can improve accuracy of detection.
Concrete content is used Fig. 9 aftermentioned, but displacement detecting signal V is sent to the determination processing section (not shown) of the described bank note decision maker 97 of Fig. 9.Determination processing section by displacement detecting signal V and bank note from measuring roll by the time deflection (inclination of throughput direction), the postural cue of displacement (rotating axial position), distinguish whether overlapping overlapping conveying more than two of bank note, perhaps be pasted with the technique of composite-RMB bank note of adhesive tape etc., and with this decision signal output.In addition, postural cue can be used for displacement detecting signal V is modified to the state that bank note does not have deflection, and is used for obtaining bank note from position that measuring roll passes through.
In Fig. 2, omit the record of the central portion of thickness detection apparatus 1.In addition, because the Reference numeral identical with Fig. 1 is identical parts, therefore the description thereof will be omitted in Fig. 2.
In Fig. 2, an end of the turning axle 3 of reference roller 5a～5j is fixed on by stop screw 7 on the inner ring 32 of ball bearing 6, and the other end is fixed on the inner ring 22 of ball bearing 8 by chimeric fastening grade.In addition, ball bearing 6 and 8 make outer ring 23,33 be located at framework 2 on mounting hole 30,36 contact and embed.Mounting hole 30, the 36th runs through the hole of framework 2.In addition, press with the layer difference section 31 that is located on the mounting hole 30 by fixed head 34 outer ring 33 of ball bearing 6, and be fixed on the framework 2 by stop screw 35.
At this, use Fig. 3 to specify the connection status of ball bearing and turning axle.
In Fig. 3, ball bearing 6,8,14,16 outer ring 21,23,33,43 and inner ring 20,22,32,42 between clamped a plurality of balls (ball) so that inner ring 20,22,32,42 or outer ring 21,23,33,43 the rotation.
The ball bearing 6 of turning axle 3,10 sides in bond, 14 inner ring 32,42 and turning axle 3,10 firmly fix via stop screw 7,15. Outer ring 33,43 and framework 2 via fixed head 34,44 and by stop screw 35,45 outer ring 33,43 is firmly fixed under by the state that is pressed in the layer difference section 31,41 that is located on the framework 2.Bearing 6 is installed, 14 mounting hole 30,40 is formed on the framework 2, and is aluminium.
On the other hand, an example (a footloose side) that freely is bearing on the framework 2 for the other end at turning axle 3 describes, although inner ring 20 and the turning axle 10 of ball bearing 16 firmly fix via stop screw 17, fix in the mode of chimeric fastening (being pressed into) with respect to the ball bearing 8 of the gear installation portion 4 that links with drive source.Ball bearing 8,16 outer ring 21,23 are supporting with respect to mounting hole 36,46 modes of sliding of framework 2.
Like this, in the present embodiment, turning axle 3, a side's of 10 end firmly fixes (constraint) on framework 2 via ball bearing 6,14, and support via ball bearing 8,16 sliding freely with respect to framework 2 the opposing party's end, therefore, even suppose framework 2 thermal deformation occurs, framework 2 can be owing to turning axle 3,10 is out of shape yet.That is to say, when framework 2 distortion, be installed in the ball bearing 8 on the turning axle 3,10, slides in 16 outer ring 21,23, framework 2 is out of shape in mounting hole 36,46.
Therefore, if make framework 2 for metal parts and for ball bearing 6,8,14,16 identical materials, perhaps be the words of the identical or approaching material of thermal expansivity, then in turning axle 3 and framework 2 situation moving and flexible based on thermal change, because ball bearing 8 and framework 2 slide at direction of principal axis, so have the effect of the axial distortion minimizing that can make framework 2.In addition, the metal parts of framework 2 can use aluminium, stainless steel, iron, copper, mo(u)lding etc.Similarly, the two ends of the turning axle 10 of measuring roll 11a～11j are fixed on ball bearing 14,16 the inner ring 42,20 by stop screw 15,17.And, ball bearing 14,16 make outer ring 21,43 be located at framework 2 on mounting hole 40,46 contact and embed.Mounting hole 40, the 46th runs through the hole of framework 2.In addition, press with the layer difference section 41 that is located in the mounting hole 40 by fixed head 44 outer ring 43 of ball bearing 14, and be fixed on the framework 2 by stop screw 45.
Therefore, in turning axle 10 and framework 2 situation moving and flexible based on thermal change, because ball bearing 16 and framework 2 slide in the axial direction, so have the effect of the axial distortion minimizing that can make framework 2.In addition, Reference numeral 4 expressions are combined in the installation portion of the gear on the rotary drive mechanism.
Embodiment two
Use Fig. 4 that embodiments of the invention two are described.In addition, because the Reference numeral identical with Fig. 2 is same parts, so the description thereof will be omitted.
In Fig. 4, consider from the relation of cost degradation that in the present embodiment the framework 2 of aluminum is changed to resin, and insert molding has metal parts 50,51 on resinous framework 2.Thus, resinous framework 2 and metal parts 50,51 combinations and integrated.
That is to say, be provided with identical with Fig. 2 mounting hole 30,40,36,46 that runs through metal parts 50,51 ball bearing at metal parts 50,51, in mounting hole 30,40, be provided with layer and differ from 31,41 and stop screw 35,45 threaded hole.Metal parts 50,51 is preferably and ball bearing 6,8,14,16 identical materials, the perhaps identical or approaching material of thermal expansivity.Particularly, can use aluminium, stainless steel, iron, copper, mo(u)lding etc.
In the present embodiment, framework 2 had effect by ester moulding for cost degradation.But, when low temperature, because compare the thermal expansivity of resin with the ball bearing 8,16 of metal large, so the contraction of resin becomes large and with outer ring 21,23 lockings, and cause can not producing ball bearing 8,16 and the axial slip of framework 2.Thus, because framework 2 is deformed into circular-arcly in the axial direction, the circuit substrate 26 that is installed on the framework 2 also is deformed into circular-arc.
Thus, the outer ring 12 of displacement detecting sensor 27a～27j, 28a～28j and measuring roll 11a～11j apart from change, and have the problem can't accurately detect the thickness of paper sheet.In addition, when high temperature, resin expand and make ball bearing 6,8,14,16 outer ring 33,43,21,23 with the mounting hole 30,36,40,46 of framework 2 between the gap broaden, become flexible thereby produce.Thus, the outer ring 12 of displacement detecting sensor 27a～27j, 28a～28j and measuring roll 11a～11j apart from change, and have the problem can't accurately detect the thickness of paper sheet.
Therefore, in the present embodiment, as shown in Figure 4, insert molding has metal parts 50,51 on resinous framework 2, metal parts 50,51 material can be used and ball bearing 6,8,14,16 identical materials, perhaps use the identical or approaching material of thermal expansivity.Thus, when low temperature, turning axle 3,10 and the metal parts 50 of framework 2,51 situations of shrinking under, since ball bearing 6,8,14,16 outer ring 33,43,21,23 and metal parts 50,51 between produce in the axial direction and slide, so have the effect that the axial distortion that can make framework 2 reduces.
In addition, when high temperature because ball bearing 6,8,14,16 outer ring 33,43,21,23 and metal parts 50,51 between the gap can not broaden, so can not produce loosening.Thus, the distance of the outer ring 12 of displacement detecting sensor 27a～27j, 28a～28j and measuring roll 11a～11j can not change, thereby has the effect that can accurately detect the thickness of paper sheet.
Embodiment three
Use Fig. 5 that other embodiment of the present invention is described.In addition, because the Reference numeral identical with Fig. 2 is same parts, so the description thereof will be omitted.
Fig. 5 makes metal parts shown in Figure 4 50,51 become other metal parts 52,53, and is fixed to structure on the resinous framework 2 by stop screw 54,55,56,67.In addition, be provided with identical with Fig. 2 mounting hole 30,40,36,46 that runs through metal parts 52,54 ball bearing at metal parts 52,53, in mounting hole 30,40, be provided with layer and differ from 31,41 and stop screw 35,45 threaded hole and for stop screw 54,55,56,57 through holes that insert.In addition, metal parts 52,53 is preferably and ball bearing 6,8,14,16 identical materials, the perhaps identical or approaching material of thermal expansivity.Particularly, can use aluminium, stainless steel, iron, copper, mo(u)lding etc.Thus, can access the effect same with embodiment two.
Embodiment four
Other a embodiment of the thickness detection apparatus of expression paper sheet of the present invention in Fig. 6, Fig. 7, Fig. 8.
Fig. 6 is the vertical view of the paper sheet thickness detection apparatus of embodiments of the invention.
Fig. 7 is the figure of displacement detecting waveform of the paper sheet thickness detection apparatus of expression embodiments of the invention.
Fig. 8 is the thickness overhaul flow chart of the paper sheet thickness detection apparatus of embodiments of the invention.
In Fig. 6, bank note decision maker 97 is by the image that detects bank note 60 and detect the deflection 65 of bank note 60 and the thickness detection apparatus 1 of the thickness of the imageing sensor 70 of displacement 66, the detection bank note that also illustrated in Fig. 1, carry the conveying roller 68,69 of bank note to consist of.In the non-Printing Department 62 that bank note 60 has Printing Department 61 and do not print.In addition, be arranged with a plurality of image sensor semiconductor devices 71 at imageing sensor 70.In addition, as also illustrating among Fig. 1, be arranged with a plurality of displacement detecting sensor 27a～27j, 28a～28j at thickness detection apparatus 1.Arrow represents the throughput direction of bank note 60, and Reference numeral 5 is reference roller groups.
Thus, by image and deflection 65 and the displacement 66 by imageing sensor 70 detected bank note 60, can obtain the position of non-Printing Department and the position of the bank note that passes through from displacement detecting sensor.Can also be detected the bank note kind by the image by imageing sensor 70 detected bank note 60 and carry out specific to non-Printing Department.In addition, the non-Printing Department of Japanese bank note is in the scope inboard from about the 5mm of bank note end.
In Fig. 7, displacement detecting signal waveform 74 expression bank note not from the displacement detecting sensor 27d of Fig. 6 by the time waveform.Like this, even under the state that bank note does not pass through, also can detect based on the off-centre of roller and the waveform that produces.
Displacement detecting signal waveform 75 expression bank note from the displacement detecting sensor 27d of Fig. 6 by the time waveform.The waveform 76 corresponding with non-Printing Department 62 of bank note 60,78 and be detected with waveform 77 corresponding to Printing Department 61.In addition, overlapping in this displacement detecting signal waveform 75 have based on the off-centre of roller and the waveform that produces.
Displacement detecting signal waveform 79 expression from bank note by the time displacement detecting signal waveform 75 deduct bank note non-by the time the waveform that obtains of displacement detecting signal waveform 74.That is to say the real displacement detecting signal waveform after the offset of roller is removed in expression.In addition, the reference roller of code device signal waveform 73 expression thickness detection apparatus 1 whenever revolves the pulse waveform that turns around.Like this, from bank note by the time displacement detecting signal waveform 75 deduct bank note non-by the time displacement detecting signal waveform 74 time, by contrasting the phase place of two waveforms take this signal as benchmark, and can remove exactly the offset of roller.
Below, the process flow diagram by Fig. 8 illustrates from by the method for obtaining the thickness of bank note the detected displacement detecting signal shown in Figure 7 of the displacement detecting sensor 27d of Fig. 6.
In Fig. 8, judge in step 80 whether bank note arrives imageing sensor.In situation about not arriving, return step 80.If arrived, then execution in step 81.
In step 81, detect and store image, deflection θ, the displacement S of bank note by imageing sensor.
In step 82, detect and store bank note by front displacement detecting signal Vo (n).
In step 83, the displacement detecting signal V (n) when detection and storage bank note pass through.
In step 84, obtain the displacement detecting signal Vc (n) that removes behind the offset=V (n)-Vo (n).
In step 85, obtain bank note by the position W (n) of position P (n) and non-Printing Department and storage by image, deflection θ, the displacement S of bank note.
In step 86, calculate the displacement detecting signal Vw (n) corresponding with the position W (n) of the non-Printing Department that is obtained banknote thickness T by displacement detecting signal Vc (n), and obtain the gain G (n) that becomes benchmark=T/Vw (n).
In step 87, obtain the thickness T (n) of the Printing Department of displacement detecting signal Vc (n)=Vc (n) * G (n).
In addition, in step 86, the non-Printing Department of the upthrow side of displacement detecting signal Vc (n) (corresponding with the displacement detecting signal waveform 79 of Fig. 7) easily comprises overshoot (overshoot), therefore the preferred displacement detecting signal Vw (n) that uses the non-Printing Department of the decline side that does not have overshoot.In addition, n represents the numbering corresponding with displacement detecting sensor 27a～27j, the 28a～28j of Fig. 6.In addition, the position of non-Printing Department also can be for entering the scope of certain-length to the inside from the bank note end position.
Like this, even the thickness detection apparatus of employed bank note makes in the situation of its detection sensitivity (output/displacement) change because thermal change is moving in bank note automatic processing device 90, owing to obtain the gain G (n) that becomes benchmark=T/Vw (n) from the thickness T of the non-Printing Department of knowing in advance thickness of bank note and displacement detecting signal Vw (n) at work, therefore, has the effect of thickness that can detect by T (n)=Vc (n) * G (n) the whole zone of the thickness of Printing Department and bank note.
Embodiment five
Illustrate that with the process flow diagram of Fig. 8 a part in the non-Printing Department of bank note has folding, breakage or adhesive tape etc. and can't know in the situation of thickness of non-Printing Department, is obtained the handling procedure of the thickness of bank note by a plurality of displacement detecting signal V.
With respect to situation about processing for a displacement detecting signal V, in the process flow diagram of Fig. 8, a plurality of displacement detecting signal V are processed.
(the first structure)
In the step 86 of Fig. 8, exceed in the situation of setting at the displacement detecting signal Vw (n) of the non-Printing Department of n displacement detecting signal Vc (n) and the variable quantity between the upper value, be judged as and exist the thickness of breakage or adhesive tape etc. and non-Printing Department inaccurate.Be judged as inaccurate displacement detecting signal Vw (n) in the situation of displacement detecting signal as Vw (n+1) and Vw (n-1) with two adjacent non-Printing Departments, obtain by the computing of Vw (n)=(Vw (n+1)+Vw (n-1))/2.
Below, carry out the processing identical with Fig. 8 and detect the thickness in the whole zone of bank note.In addition, in the situation of detection sensitivity (output/displacement) as S (n-1), S (n), S (n+1) with (n-1), (n), (n+1) individual displacement detecting sensor, also can be with the displacement detecting signal of (n+1) individual above-mentioned non-Printing Department as Vw * S (n)/S (n+1), and the displacement detecting signal of (n-1) individual above-mentioned non-Printing Department calculated as Vw (n-1) * S (n)/S (n-1).
(the second structure)
In the step 86 of Fig. 8, exceed in the situation of setting at the displacement detecting signal Vw (n) of the non-Printing Department of n displacement detecting signal Vc (n) and the variable quantity between the upper value, be judged as and exist the thickness of breakage or adhesive tape etc. and non-Printing Department inaccurate.Being judged as inaccurate displacement detecting signal Vw (n) obtains from other the displacement detecting signal Vw (k) of non-Printing Department of k displacement detecting sensor and the displacement ratio R of pre-stored each displacement detecting sensor by computing.
In the situation of distortion ratio R (k) of distortion ratio R (n), a k displacement detecting sensor that is n displacement detecting sensor, obtain by Vw (n)=Vw (k) * R (n)/R (k).The distortion ratio of displacement detecting sensor that the distortion ratio R makes two ends shown in Figure 6 is as 1, and towards the distortion ratio of the displacement detecting sensor of central authorities with straight line or curvilinear motion.For example, the distortion ratio that makes two ends is 1, and the distortion ratio of central authorities is 1.3, and increases point-blank at above-mentioned point-to-point transmission.Perhaps, be scattered in circular-arc by what represent by above-mentioned 3 radius-of-curvature.
Below, carry out the processing same with Fig. 8, thereby detect the thickness in the whole zone of bank note.In addition, also can multiply by for upwards stating the distortion ratio R value that detection sensitivity (output/displacement) ratio=(detection sensitivity of each displacement detecting sensor)/(all mean value of the detection sensitivity of displacement detecting sensor) obtains of each displacement detecting sensor.In addition, the size of the displacement detecting signal of the displacement detecting signal of the displacement detecting sensor at two ends and central portion is compared, in the large situation of the displacement detecting signal of central portion, the ratio of use central portion becomes the distortion ratio of convex, in little situation, the ratio of use central portion becomes the distortion ratio of concavity.In addition, the position of non-Printing Department also can be in the scope that enters to the inside certain-length from the bank note end position.
Like this, effect and following effect with embodiment three: even have breakage or adhesive tape etc. an one of the non-Printing Department of bank note and can't know in the situation of thickness of non-Printing Department, owing to can obtain the gain G (n) that becomes benchmark=T/Vw (n) from other the thickness T of non-Printing Department and displacement detecting signal Vw (n), therefore, can detect by T (n)=Vc (n) * G (n) thickness in the whole zone of the thickness of Printing Department and bank note.
Below, the embodiment of cash automatic processing device of the thickness detection apparatus of paper sheet of the present invention has been used in expression in Fig. 9.
In Fig. 9, the bank note treatment device 90 of lift-launch in the cash automatic processing device constitutes and comprise: judge the kind of bank note and the true and false judgment means of the true and false, this true and false judgment means is supplied with the fluoroscopic image of the imageing sensor of the pattern of receiving mechanism 91, bank note transport path 92a, 92b, detection bank note, the magnetic sensor that detects the magnetic pattern thereon of bank note, detection bank note by the bank note that for the bank note 96a that takes in supply bank note is separated and be used for the specified amount of money of payment user when cash takes out when depositing cash in fluorescent optical sensor is consisted of; Bank note decision maker 97, judge the true and false of bank note with the thickness detection apparatus of paper sheet of the present invention, wherein, the thickness detection apparatus of paper sheet of the present invention can detect bank note overlapping overlapping conveying and bank note of altering with adhesive tape, paper etc. more than two; Temporary storage (stacker) 93 is temporarily accumulated bank note when the taking in of bank note and during payment; Be used for taking in the paper currency recovery box 94 of bank note that can't mechanical treatment; With the bank note kind containing box 95a, 95b, the 95c that are used for taking in and paying by the bank note kind bank note 96b.
Below, the action of the bank note automatic processing device of embodiments of the invention is described.
In Fig. 9, when depositing cash in, be supplied to bank note and supply with the bank note 96a of receiving mechanism 91 and separated one by one and be supplied to transport path 92a.Identification note 96 is genuine note or counterfeit money in bank note discriminating section 97, in addition, judges that bank note is more than one or two.Bank note is genuine note and is being in one and the situation for folding coin, accumulates to temporary storage 93 and shows dealing money.
On the other hand, in the bank note 96 in-problem situations of supplying with, whole bank note 96 of supply are retracted into bank note and supply with receiving mechanism 91.In the situation that transaction is set up, again check that by bank note decision maker 97 bank note is one or more than two, and take in to bank note kind containing box 95a～95c separately.
When paying in cash, the bank note 96b of bank note kind containing box 95 separated one by one and be supplied to transport path 92b.Judge that in bank note decision maker 97 bank note is more than one or two.In one the situation, to supply with receiving mechanism 91 payments to bank note at bank note.Being more than two and in the situation for folding coin, accumulate to temporary storage, then, take in to paper currency recovery box 94.In addition, bank note decision maker 97 constitutes, no matter carry bank note to differentiate from reciprocal which direction.
In explanation so far, in displacement detector, use the eddy current type displacement transducer, but also can use electrostatic capacity type displacement transducer, optical displacement sensor, tangent displacement sensor etc.In addition, also the thickness detection apparatus of paper sheet of the present invention can be applicable in the paper money thickness testing apparatus of cash automatic processing device, automatic vending machine.
According to aforesaid the present invention, even owing to the framework of the coefficient of thermal expansion aluminium higher than the turning axle of SUS produces distortion, an end of turning axle also can slide with respect to framework, so framework can not deform.
And, be formed with sheet metal in the embedding of resin framework, and, even because cold air produces drawdown deformation at direction of principal axis, but because sheet metal is the material identical or approaching with the thermal expansivity of turning axle, so can shrink in the same manner with turning axle, thereby can not apply unnecessary burden to turning axle 3.Therefore, can not produce axial distortion at turning axle, therefore, even the temperature of extraneous air changes, also can carrying out accurately, the thickness of paper sheet detects.
Claims (10)
1. the thickness detection apparatus of a paper sheet, it has: be installed in a plurality of reference roller on the turning axle that rotates by driving mechanism; Contact side by side and be installed in a plurality of measuring rolls on the turning axle of driven rotation with this reference roller; This measuring roll and described reference roller are rotated the housing of supporting; Be configured in the upper surface of the described housing relative with described measuring roll, and a plurality of displacement detecting sensors that the displacement of described measuring roll is detected, the thickness detection apparatus of described paper sheet detects the thickness of the paper sheet carried in the contact site between described reference roller and described measuring roll, it is characterized in that
Be fixed with the inner ring of ball bearing at the two ends of the turning axle of the turning axle of described reference roller and described measuring roll, be fixed on a side the outer ring of end upper ball bearing of the turning axle of described reference roller and described measuring roll, be fixed in the mounting hole of described housing, and
The outer ring that is installed in the ball bearing on the opposing party's the end of described turning axle is inserted in the mounting hole of described housing.
2. the thickness detection apparatus of paper sheet as claimed in claim 1 is characterized in that,
Described ball bearing has the outer ring with respect to the mounting hole slip of described housing.
3. the thickness detection apparatus of a paper sheet, it has: be installed in a plurality of reference roller on the turning axle that rotates by driving mechanism; Contact side by side and be installed in a plurality of measuring rolls on the turning axle of driven rotation with this reference roller; This measuring roll and described reference roller are rotated the housing of supporting; Be configured in the upper surface of the described housing relative with described measuring roll, and a plurality of displacement detecting sensors that the displacement of described measuring roll is detected, the thickness detection apparatus of described paper sheet detects the thickness of the paper sheet carried in the contact site between described reference roller and described measuring roll, it is characterized in that
Make described housing by ester moulding, and,
Be fixed with the inner ring of ball bearing at the two ends of the turning axle of the turning axle of described reference roller and described measuring roll, be fixed on a side the outer ring of end upper ball bearing of the turning axle of described reference roller and described measuring roll, be fixed in the mounting hole of described housing, and the outer ring that is installed in the ball bearing on the opposing party's the end of described turning axle is inserted in the mounting hole of described housing.
4. the thickness detection apparatus of paper sheet as claimed in claim 3 is characterized in that,
Described ball bearing has the outer ring with respect to the mounting hole slip of described housing.
5. the thickness detection apparatus of paper sheet as claimed in claim 3 is characterized in that,
Described mounting hole is formed by metal parts, and this metal parts is by based on the shaping of the described housing of resin and be embedded in integratedly.
6. such as the thickness detection apparatus of each described paper sheet in the claims 1 to 3, it is characterized in that,
From described paper sheet not between described reference roller and the described measuring roll by the time displacement 1 and have the Printing Department that has ink and do not have ink non-Printing Department described paper sheet by the time displacement 2 obtain displacement 3, this displacement 3=displacement 2-displacement 1,
And from the displacement 4 of the described non-Printing Department of knowing in advance thickness T of described displacement 3, obtain the benchmark gain G by G=T/ displacement 4,
And obtain the thickness of the paper sheet that passes through from described displacement detecting sensor by G * displacement 3.
7. such as the thickness detection apparatus of each described paper sheet in the claims 1 to 3, it is characterized in that,
The displacement 4 of the described non-Printing Department of n displacement detecting sensor than on once detected value changed in the situation more than the certain value, displacement 4 additions of the described non-Printing Department that will be obtained by the described displacement detecting sensor of adjacent both sides, and its 1/2 displacement 4 as n described non-Printing Department come computing and obtain, and the displacement 4 from obtaining by described computing, obtain the benchmark gain G by G=T/ displacement 4
And obtain the thickness of the paper sheet that passes through from described n displacement detecting sensor by G * displacement 3.
8. such as the thickness detection apparatus of each described paper sheet in the claims 1 to 3, it is characterized in that,
The output correction ratio of pre-stored a plurality of displacement detecting sensors, the displacement 4 of the described non-Printing Department of n displacement detecting sensor than on once detected value changed in the situation more than the certain value, output correction ratio R 1 by described n displacement detecting sensor, the displacement 4 of the output correction ratio R 2 of k displacement detecting sensor and the described non-Printing Department that obtains by described k displacement detecting sensor, the displacement 4 of described n described non-Printing Department is come computing as displacement 5 and obtain, displacement 4 * the R1/R2 of this displacement 5=k described non-Printing Department, and obtain the benchmark gain G from described displacement 5 and by G=T/ displacement 5, and obtain the thickness of the paper sheet that passes through from described n displacement detecting sensor by G * displacement 3.
9. a bank note treatment device is characterized in that, has the thickness detection apparatus of each described paper sheet in the claim 1 to 2.
10. a bank note treatment device is characterized in that, has the thickness detection apparatus of each described paper sheet in the claim 3 to 8.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2011190888A JP5395859B2 (en) | 2011-09-01 | 2011-09-01 | Paper sheet thickness detection device and bill handling device |
| JP2011-190888 | 2011-09-01 |
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| CN102968847A true CN102968847A (en) | 2013-03-13 |
| CN102968847B CN102968847B (en) | 2015-03-25 |
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| CN103994742A (en) * | 2014-05-22 | 2014-08-20 | 浙江方泰电器有限公司 | Mechanical sectional type belt gain thickness measuring mechanism of sorting machine |
| CN104574637A (en) * | 2015-02-05 | 2015-04-29 | 广州广电运通金融电子股份有限公司 | Thickness detection device of sheet medium |
| CN105096441A (en) * | 2015-08-25 | 2015-11-25 | 昆山古鳌电子机械有限公司 | Banknote storage device and banknote detection and storage method |
| CN105913546A (en) * | 2016-04-14 | 2016-08-31 | 广州广电运通金融电子股份有限公司 | Thickness detection apparatus and method for sheet type medium, and financial self-service device |
| CN107067535A (en) * | 2017-03-13 | 2017-08-18 | 深圳怡化电脑股份有限公司 | Banknote thickness detects reference axis mounting structure and banknote tester |
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| JP6369308B2 (en) * | 2014-12-02 | 2018-08-08 | 沖電気工業株式会社 | Paper sheet identification device |
| JP6597380B2 (en) * | 2016-02-22 | 2019-10-30 | 沖電気工業株式会社 | Paper sheet thickness detection mechanism, paper sheet discrimination device, and paper sheet handling device |
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| CN103994742A (en) * | 2014-05-22 | 2014-08-20 | 浙江方泰电器有限公司 | Mechanical sectional type belt gain thickness measuring mechanism of sorting machine |
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| CN105913546A (en) * | 2016-04-14 | 2016-08-31 | 广州广电运通金融电子股份有限公司 | Thickness detection apparatus and method for sheet type medium, and financial self-service device |
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| CN109416853A (en) * | 2016-09-16 | 2019-03-01 | 日立欧姆龙金融系统有限公司 | Bill handling device |
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| CN107067535A (en) * | 2017-03-13 | 2017-08-18 | 深圳怡化电脑股份有限公司 | Banknote thickness detects reference axis mounting structure and banknote tester |
Also Published As
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| JP2013054446A (en) | 2013-03-21 |
| CN102968847B (en) | 2015-03-25 |
| JP5395859B2 (en) | 2014-01-22 |
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