CN102556706A - Paper thickness detecting device - Google Patents
Paper thickness detecting device Download PDFInfo
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- CN102556706A CN102556706A CN2011103709957A CN201110370995A CN102556706A CN 102556706 A CN102556706 A CN 102556706A CN 2011103709957 A CN2011103709957 A CN 2011103709957A CN 201110370995 A CN201110370995 A CN 201110370995A CN 102556706 A CN102556706 A CN 102556706A
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Abstract
The invention relates to a paper thickness detecting device, which is characterized by comprising a reference roll, a detecting roll, a detecting block, a retaining block, a first press part, a shift detecting part and a second press part. The reference roll is arranged on a fixed rotary shaft and used as judging reference of the thickness, the detecting roll opposite to the reference roll contacts with the reference roll and is arranged at one end of the detecting block, the other end of the detecting block rotates freely by utilizing a supporting shaft as the center to shift according to the thickness of paper passing between the reference roll and the detecting roll and is fixed, the retaining block retains the supporting shaft of the detecting block at least, the first press part is fixed on the retaining block and presses part of the detecting block while keeping tightness between the detecting roll and the reference roll, the shift detecting part detects shift of the detecting roll, and the second press part presses the retaining block in the attaching direction of the detecting roll to the reference roll during thickness detection of paper.
Description
The application divides an application for following patent application: the applying date is on August 31st, 2007, and application number is 200780100425.8, and denomination of invention is " paper sheet thickness detection device ".
Technical field
Carry and be used to detect the paper sheet thickness detection device of banknote thickness in the paper money identifier in the cash handling apparatus that for example the present invention relates in bank etc., to be provided with.
Background technology
The paper money identifier that in cash handling apparatus etc., comprises or as automatic selling-machine etc., handle in the device of bank note, the bank note that identification is forged by band (tape), paper etc. is important, for this reason, has comprised paper money identifier.
Especially, in recent years, its pseudo-technology for making becomes ingenious, has for example occurred by band, paper, chapter (seal) etc., the technology of forging out bank note, Valued Securities, bill and check etc.
Like this, the bank note discriminating gear as being used to differentiate the bank note forged by band, paper etc. etc. for example has in the real technology of putting down in writing in the flat 6-49442 communique in the past of opening.
Based on Figure 11 this paper sheet thickness detection device in technology in the past is described.That kind shown in figure 11; Reference roller 101 and measuring roll 102 opposite disposed; This measuring roll 102 is installed to an end of the lever part 104 that bolster 103 can be fluctuated as fulcrum through movable axis 105; The other end of lever part 104 has been installed anti-dazzle device 106, has disposed the optical pickocff 107 of photo interrupter (photo interrupter) etc. opposed to each other with this anti-dazzle device 106.In addition; Lever part 104 will from the position that movable axis 105 is isolated, attach gesture through spring 108 to the top, and attach gesture through this across bolster 103; Measuring roll 102 will be pressed downwards; But lever part 104 is blocked by latch for printed circuit 109 and ends, and the gap d between measuring roll 102 and the reference roller 101 be set at wideer than the thickness t of paper P, narrower than two thickness 2t.
Therefore, if the paper P that inserts is one, then movable axis 105 need not to move up and down, and the testing result of optical pickocff 107 does not change yet.But if insert two overlapping paper P, then measuring roll 102 is pulled on, and anti-dazzle device 106 moves through lever part 104, thereby the testing result of optical pickocff 107 changes.It is inaccurate to detect paper thickness like this.
But in above-mentioned technology in the past, the setting operation of the gap d between measuring roll 102 and the reference roller 101 is extremely difficult.In addition, even can correctly set above-mentioned gap d, also exist in use during make mistakes gradually.
In addition, in technology in the past, measuring roll is contacted reference roller all the time, but, then exist in paper and (rise and fall: pitching), can not correctly detect the problem of thickness through rocking of middle generation measuring roll if measuring roll contacts reference roller all the time.
In addition, if paper is through between measuring roll and the reference roller, then attached to the tiny dust on the surface of paper attached on measuring roll and the reference roller, if this dust is deposited on the roller, then existence can not detect the problem of correct thickness.About this problem; Open in the flat 10-283520 communique the spy and to disclose the scraper plate (scraper) that is used to remove foreign matter; But if scraper plate is fixed on the part of device; Even then resilient scraper plate, the action in the time of also can hindering bank note to charge into measuring roll owing to the front end of scraper plate is so exist the problem that can not detect correct thickness.
In addition; Arranging a plurality of detection pieces that comprise measuring roll along the direction vertical with the transmission direction of paper; And whole of the paper that measuring roll contact is transmitted and carry out under the situation that the thickness of whole of paper detects; Owing to when paper is charged into measuring roll, once bump against whole measuring rolls, move tempestuously so exist because of this bump detects piece, the problem of ballistic kick (kick) appears in the detection output wave shape that obtains.In addition, also there be stopping when charging into measuring roll, the paper blocking problem takes place because of paper.
Summary of the invention
The problem that invention will solve
The present invention accomplishes in view of above-mentioned variety of issue point; Its purpose is; Provide a kind of paper sheet thickness to detect detecting device, it does not constitute need can carry out the position Detection that thickness detected and pasted band in the timer-operated fine setting of establishing of measuring roll; And the ballistic kick of the output wave shape when alleviating paper and charging into is not even can limit the action of measuring roll or reference roller yet when removing attached to the foreign matter on measuring roll or the reference roller.
In addition, as in the past, attach the gesture parts with what measuring roll contacted reference roller all the time owing to constitute through various parts, and the detection part that is used to detect the displacement of measuring roll, so the structure of measuring roll part becomes complicated.The objective of the invention is to, through this attaches gesture parts and detection part by a component set-up, thus the simplification of the structure of realization measuring roll part.
Be used to solve the means of problem
The present invention relates to paper sheet thickness detection device; Above-mentioned purpose of the present invention realizes through following paper sheet thickness detection device; This paper sheet thickness detection device is characterised in that, comprising: reference roller is arranged on the S. A. that is fixed and is the determinating reference of thickness; Measuring roll is set to opposed with said reference roller and contacts; Detect piece, at one end portion is provided with said measuring roll, and the other end is that the center rotation is fixed freely with the bolster, according to the rotational displacement through the paper sheet thickness between said reference roller and the said measuring roll; Maintainance block keeps the bolster of said detection piece at least; First pressing component is fixed on the said maintainance block, pushes the part of said detection piece and keeps the compactness between said measuring roll and the said reference roller; The displacement detection parts detect the shift amount of said measuring roll; And second pressing component, when detecting said paper thickness, the direction that is adjacent to said reference roller to said measuring roll is pushed said maintainance block.
In addition; Above-mentioned purpose of the present invention realizes through following method effectively; Comprise that the two ends that are used for through from said bolster give pushing, thereby the fluctuating that suppresses the fluctuating of said measuring roll suppresses parts, perhaps; On top base, said maintainance block is installed, this top base is installed on the bottom base of the S. A. that is fixed with said reference roller via compression spring.
In addition; Above-mentioned purpose of the present invention realizes through following method effectively; The laminal scraper plate that generally perpendicularly touches said measuring roll and remove attached to the foreign matter on the said measuring roll along with the rotation of said measuring roll is fixed on the said detection piece; Perhaps; To touch said reference roller with the pressure of regulation and remove scraper plate along with the rotation of said reference roller, via being fixed on the said bottom base, and on said bottom base, be provided for discharging the opening portion of the said foreign matter that is removed with the integrally formed leaf spring of this scraper plate attached to the resin type of the foreign matter on the said reference roller.
In addition; Above-mentioned purpose of the present invention realizes through following method effectively; Two kinds different with distance between the said bolster of the S. A. of said measuring roll detect pieces and are configured in across on the said bolster, said measuring roll along said bolster direction with staggered arrangement.
Description of drawings
Fig. 1 is the figure that is used to explain the principle that the thickness of paper sheet thickness detection device of the present invention detects.
Fig. 2 is the block diagram that the detection piece of measuring roll has been installed.
Fig. 3 is illustrated in a plurality of detecting units of configuration on the bolster, and on S. A., disposes the skeleton diagram of the paper sheet thickness detection device of a plurality of reference roller.
Fig. 4 is the figure of expression measuring roll and reference roller situation about leaving mutually.
Fig. 5 (A) and Fig. 5 (B) are the figure of comparison of the output wave shape of expression displacement detection parts (displacement transducer).
Fig. 6 is illustrated on the bolster a plurality of detection pieces that are provided with measuring roll of configuration, and gives the figure of the situation of pushing from the two ends of bolster through compression spring.
Fig. 7 (A) and Fig. 7 (B) represent that different two kinds of distance between the S. A. of bolster and measuring roll of configuration detection piece alternately detect pieces, and measuring roll is with the figure of the paper sheet thickness detection device of staggered arrangement.
Fig. 8 is the figure of expression when axially seeing Fig. 7.
Fig. 9 is the figure when being illustrated on the reference roller contact and being used to remove the scraper plate of foreign matter.
Figure 10 is the enlarged drawing of the scraper plate in Fig. 9.
Figure 11 is the figure that representes an example of paper sheet thickness detection device in the past.
The specific embodiment
Based on accompanying drawing, specify paper sheet thickness detection device of the present invention.
Fig. 1 is the figure that is used to explain the principle that the thickness of paper sheet thickness detection device of the present invention detects, and it comprises: reference roller 1, S. A. are fixed and are the determinating reference of thickness; Measuring roll 2, on reference roller 1 contact and be provided with; Detect piece 3, at one end portion is provided with measuring roll 2, and the other end is that the center rotation is fixed freely with bolster 4, according to the thickness that passes through the paper P between reference roller 1 and the measuring roll 2 and along direction of arrow rotational displacement; Maintainance block 5, maintenance detects the bolster 4 of piece 3 at least; Metal leaf spring 6; Be fixed on the maintainance block 5; The part of pressing detection piece 3 and keep the compactness between measuring roll 2 and the reference roller 1, and according to the rotational displacement of the detection piece 3 of paper P through between reference roller 1 and the measuring roll 2 time is pulled on and is shifted to the top; And displacement detection parts (displacement transducer of metal sheet) 7, detect the shift amount of leaf spring 6 with non-contacting mode; And Signal Processing Element (sensor base plate) 8, detect the thickness of paper P according to the output signal of displacement transducer 7.
The principle that simple declaration thickness detects, if paper P transmits and gets between reference roller 1 and the measuring roll 2, then the S. A. owing to reference roller 1 is fixed, so measuring roll is pulled on the amount of thickness of paper P to the top.Because being fixed to, the detection piece 3 that is fixed with measuring roll 2 can rotate freely, so then detect piece 3 and also move to the top if measuring roll 2 moves to the top through bolster 4.All the time the contact detection piece 3, and will detect leaf spring 6 that piece 3 presses downwards through elastic force and be shifted to the top according to detecting the amount that piece 3 moves.Displacement transducer 7 is exported the variation of the distance (d) between leaf spring 6 and the displacement transducer 7 as electric signal, and in Signal Processing Element 8 as the thickness of paper P and detect.As the displacement transducer of metal sheet, the micro-miniature displacement transducer (name of product DS2001) that Japan System Development Co., Ltd. capable of using makes.In addition, above-mentioned is to be that example is illustrated with leaf spring 6 for metal situation, but is not limited to metal situation, can also be resin system.The displacement transducer utilization of this moment has used the rang sensor of laser etc. to get final product.
On the other hand, if paper P finishes through between reference roller 1 and the measuring roll 2, then the elastic force through leaf spring 6 detects piece 3 and is pressed, and reference roller 1 and measuring roll 2 are close to once more.
Fig. 2 is the block diagram that the detection piece 3 of measuring roll 2 has been installed in expression; And represent laminal scraper plate 9 nails at the state that detects piece 3, said laminal scraper plate 9 is removed along with the rotation of measuring roll 2 attached to the foreign matter on the measuring roll 2 (transferring to the material of roller attached to the dust of paper etc.).Because scraper plate 9 generally perpendicularly touches measuring roll 2, how the hand of rotation so can remove foreign matter with measuring roll 2 has nothing to do.
Fig. 3 be illustrated on the bolster 4 configuration a plurality of by measuring roll 2, detect the detecting units that piece 3, leaf spring 6 and displacement detection parts 7 constitute, and on S. A. a plurality of reference roller 1 of configuration and the integrally-built skeleton diagram of the paper sheet thickness detection device that constitutes.In an embodiment, 12 these detecting units of configuration on the bolster direction, and also disposed cooresponding reference roller opposed to each other.In addition, not needing necessarily to cut apart reference roller and dispose, also can be a long roller.
The S. A. of reference roller is fixed on the bottom base, and the maintainance block 5 that is fixed with the bolster 4 that detects piece 3 is fixed on the top base via compression spring.
Be installed in maintainance block on the top base via compression spring; This is to produce the gap because of leaving mutually with reference roller 1 as if the such measuring rolls 2 as shown in Figure 4 such as bending because of pedestal; Then can not carry out thickness detects; Institute thinks and prevents to detect and through compression spring, the contact portion of maintainance block side compressed keep bearing (bearing), thereby with measuring roll and the correct position of reference roller maintenance.
Fig. 5 is the figure of the signal output waveform of expression displacement transducer.Detection piece 3 applies through 6 pairs of opposed reference roller sides of leaf spring to be pushed; But at paper through during between reference roller and the measuring roll; Because the concavo-convex measuring roll on the surface of paper produces and rocks, ((A) figure) occurs rising and falling on the signal output waveform of displacement transducer.For alleviating this fluctuating, also consider to increase pushing of leaf spring, but if the number of detecting unit is many, the antagonistic force that then is applied to maintainance block as a whole increases, so bad.Therefore, consider each is detected the mobile passivation of piece.Specifically, that kind as shown in Figure 6 is used compression spring, gives pushing from the both sides of the bolster 4 that detects piece.So the tight ness rating between the adjacent detection piece increases, friction force increases, and is suppressed so each detects the mobile of piece.Its result becomes such little waveform that rises and falls shown in Fig. 5 (B).
Fig. 7 (A) is expression with the S. A. of measuring roll 2 and detects the figure that the identical piece of distance between the bolster 4 of piece 3 has disposed 12 situation; Because when paper is charged between reference roller and the measuring roll; Once bump against the measuring roll of 24 places (12 * 2); So change tempestuously because of this bump detects piece, ballistic kick (kick) (with reference to Fig. 5) in the output wave shape of displacement transducer, occurs.For alleviating ballistic kick, considering increases pushing of leaf spring 6, perhaps increases the method for the pushing of bolster, but as if increasing pushing of leaf spring, then its power of 12 times is applied in the maintainance block as device is whole, problem and generation paper blocking problem on the intensity occur.In addition, if excessively increase pushing, then detect piece and do not move basically, detection sensitivity worsens.
Therefore; Such shown in Fig. 7 (B); Use the S. A. of measuring roll 2 and detect different two kinds of distance between the bolster 4 of piece 3 and detect pieces, and they alternately are configured to staggered (zigzag), the number of the detection piece that paper is once clashed into reduces by half; Impact thereby reduce, reduce the ballistic kick of waveform.That is, in Fig. 7 (B), under the situation that paper is charged into from the direction of arrow, along the direction of arrow from the left side on the measuring roll of detection piece of bump odd number, clash into afterwards on the measuring roll of detection piece of even number, thereby the impact when paper is charged into reduces by half.The S. A. of the measuring roll of the S. A. of the measuring roll of the detection piece of odd number and the detection piece of even number staggers respectively in the front and back of the S. A. of reference roller to dispose about 1mm～number mm and gets final product.
In addition, such as stated, alternately be configured to staggeredly if detect pieces with two kinds, have then that the leading section at paper applies resistance equably when paper is charged into, prevent the effect of diagonal.In addition, in any case combining and configuring, the result respectively disposes similar number, then has the effect that the impact of paper when charging into reduces by half.
In addition, as if the distance between the bolster 4 of S. A. that measuring roll 2 is set and detection piece 3 different three kinds or four kinds of detection pieces, it is 1/3,1/4 that the impact when then paper is charged into can alleviate respectively.
Fig. 8 is the figure of expression when axially seeing Fig. 7 (B).
Fig. 9 representes to be used for to remove along with the rotation of reference roller the state that touches reference roller attached to the resinous scraper plate of the foreign matter on the reference roller (transferring to the material of roller attached to dust of paper etc.).Through the contact of scraper plate face, where reference roller rotates to, and can both remove foreign matter.
Figure 10 is the enlarged drawing of scraper plate, because the part of contact reference roller is the R shape, and is used to the opening portion of dust that drops being provided with the integrally formed plate spring portion of scraper plate, so the foreign matter that is removed is discharged to outside the thickness detection apparatus.
One end is fixed on the bottom base side to above-mentioned scraper plate via leaf spring.In addition, owing to being fixed via leaf spring, so even scraper plate weares and teares, scraper plate can not leave the surface of reference roller yet, foreign object removal capabilities can not worsen yet.
Through the scraper plate of Fig. 2 and the scraper plate of Fig. 9, can remove foreign matter to reference roller, measuring roll, can carry out correct thickness and detect.
Claims (7)
1. a paper sheet thickness detection device is characterized in that, comprising:
Reference roller is arranged on the S. A. that is fixed and is the determinating reference of thickness;
Measuring roll is set to opposed with said reference roller and contacts;
Detect piece, at one end portion is provided with said measuring roll, and the other end is that the center rotation is fixed freely with the bolster, according to the rotational displacement through the paper sheet thickness between said reference roller and the said measuring roll;
Maintainance block keeps the bolster of said detection piece at least;
First pressing component is fixed on the said maintainance block, pushes the part of said detection piece and keeps the compactness between said measuring roll and the said reference roller;
The displacement detection parts detect the shift amount of said measuring roll; And
Second pressing component, when detecting said paper thickness, the direction that is adjacent to said reference roller to said measuring roll is pushed said maintainance block.
2. paper sheet thickness detection device as claimed in claim 1 is characterized in that,
The S. A. of said reference roller is fixed on the bottom base,
Said maintainance block is arranged in the top base,
Said second pressing component is set to an end and is fixed on the said top base, and the other end is pushed said maintainance block.
3. paper sheet thickness detection device as claimed in claim 2 is characterized in that,
The maintenance bearing also is set on the S. A. of said reference roller,
Said second pressing component is when said top base is fixed on said bottom base, the contact portion of the said maintainance block of said top base side is compressed the spring material of the said maintenance bearing of said bottom base side.
4. like each described paper sheet thickness detection device of claim 1 to 3, it is characterized in that,
2 said measuring rolls are provided with 1 said detection piece.
5. like each described paper sheet thickness detection device of claim 1 to 3, it is characterized in that, also comprise:
Laminal first scraper plate is fixed on the said detection piece, and generally perpendicularly touches said measuring roll, removes attached to the foreign matter on the said measuring roll through the rotation of said measuring roll.
6. like each described paper sheet thickness detection device of claim 1 to 3, it is characterized in that, also comprise:
Second scraper plate of resin type is fixed on the said bottom base via integrally formed leaf spring, and touch said reference roller and remove attached to the foreign matter on the said reference roller with the pressure of regulation along with the rotation of said reference roller,
On said bottom base, be provided for discharging the opening portion of the said foreign matter that is removed.
7. paper sheet thickness detection device as claimed in claim 6 is characterized in that,
The fore-end of said second scraper plate is the R shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110370995.7A CN102556706B (en) | 2007-08-31 | 2007-08-31 | Paper thickness detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110370995.7A CN102556706B (en) | 2007-08-31 | 2007-08-31 | Paper thickness detecting device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007801004258A Division CN101790486B (en) | 2007-08-31 | 2007-08-31 | Thickness detector of paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102556706A true CN102556706A (en) | 2012-07-11 |
| CN102556706B CN102556706B (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110370995.7A Active CN102556706B (en) | 2007-08-31 | 2007-08-31 | Paper thickness detecting device |
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| CN (1) | CN102556706B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014044032A1 (en) * | 2012-09-21 | 2014-03-27 | 广州广电运通金融电子股份有限公司 | Sheet medium thickness detection device |
| CN105096443A (en) * | 2015-08-28 | 2015-11-25 | 广州广电运通金融电子股份有限公司 | Hall thickness detection apparatus of laminated dielectric |
| CN107326717A (en) * | 2017-07-12 | 2017-11-07 | 郭磊 | It is a kind of to detect the paper machine of paper sheet thickness |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014044032A1 (en) * | 2012-09-21 | 2014-03-27 | 广州广电运通金融电子股份有限公司 | Sheet medium thickness detection device |
| CN105096443A (en) * | 2015-08-28 | 2015-11-25 | 广州广电运通金融电子股份有限公司 | Hall thickness detection apparatus of laminated dielectric |
| WO2017036151A1 (en) * | 2015-08-28 | 2017-03-09 | 广州广电运通金融电子股份有限公司 | Hall detection device for thickness of sheet medium |
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| CN107326717A (en) * | 2017-07-12 | 2017-11-07 | 郭磊 | It is a kind of to detect the paper machine of paper sheet thickness |
| CN107326717B (en) * | 2017-07-12 | 2019-05-28 | 东莞福迈包装印刷有限公司 | A kind of paper machine can detecte paper sheet thickness |
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