CN102556706B - Paper thickness detecting device - Google Patents

Paper thickness detecting device Download PDF

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Publication number
CN102556706B
CN102556706B CN201110370995.7A CN201110370995A CN102556706B CN 102556706 B CN102556706 B CN 102556706B CN 201110370995 A CN201110370995 A CN 201110370995A CN 102556706 B CN102556706 B CN 102556706B
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block
measuring roll
reference roller
detecting
roll
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CN102556706A (en
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村中光彦
小川和人
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Glory Ltd
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Glory Ltd
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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

Paper sheet thickness detection device
The application is the divisional application of 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
The present invention relates in the paper money identifier in the cash handling apparatus that such as arranges in bank etc. and carry and paper sheet thickness detection device for detecting banknote thickness.
Background technology
The paper money identifier comprised in cash handling apparatus etc. or process in the device of bank note as automatic selling-machine etc., identifies that the bank note forged by band (tape), paper etc. is important, for this reason, contains paper money identifier.
Especially, in recent years, its pseudo-technology for making becomes ingenious, such as, occurred, by band, paper, chapter (seal) etc., forging out the technology of bank note, Valued Securities, bill and check etc.
Like this, as the bank note discriminating gear for differentiating the bank note forged by band, paper etc. etc., such as, the conventional art recorded in Beneficial 6-49442 publication is had.
Paper sheet thickness detection device in the conventional art is described based on Figure 11.As shown in Figure 11, reference roller 101 is opposite disposed with measuring roll 102, this measuring roll 102 is installed to the one end of the lever part 104 that can be fluctuated as fulcrum by bolster 103 by movable axis 105, the other end of lever part 104 has installed anti-dazzle device 106, is configured with the optical pickocff 107 of photo interrupter (photointerrupter) etc. opposedly with this anti-dazzle device 106.In addition, the position that lever part 104 will be isolated from movable axis 105 across bolster 103, by spring 108 attached gesture upward, and by this attached gesture, measuring roll 102 will be pressed downwards, but lever part 104 is locked parts 109 and engages, and the gap d between measuring roll 102 and reference roller 101 is set as wider than the thickness t of paper P, narrower than two thickness 2t.
Therefore, if the paper P inserted is one, then movable axis 105 is without the need to moving up and down, and the testing result of optical pickocff 107 does not also change.If but the paper P that insertion two is overlapping, then measuring roll 102 is pulled on, and by lever part 104, anti-dazzle device 106 moves, thus the change of the testing result of optical pickocff 107.The thickness of such detection paper is forbidden.
But in above-mentioned conventional art, the setting operation of the gap d between measuring roll 102 and reference roller 101 is extremely difficult.In addition, namely allow to correctly set above-mentioned gap d, also exist and gradually make mistakes during use.
In addition, in the prior art, measuring roll is contacted reference roller all the time, if but measuring roll contacts reference roller all the time, then and exist and (risen and fallen: pitching), correctly can not detect the problem of thickness by rocking of middle generation measuring roll at paper.
In addition, if paper is by between measuring roll and reference roller, then the tiny dust being attached to the surface of paper is attached in measuring roll and reference roller, if this dust is deposited on roller, then there is the problem that can not detect correct thickness.About this problem, the scraper plate (scraper) for removing foreign matter is disclosed in Unexamined Patent 10-283520 publication, if but scraper plate is fixed in a part for device, even then resilient scraper plate,, so there is the problem that can not detect correct thickness in action when bank note also can be hindered to charge into measuring roll due to the front end of scraper plate.
In addition, multiple detection block comprising measuring roll is being arranged along the direction vertical with the transmission direction of paper, and measuring roll is when contacting whole of the paper transmitted and carry out the Thickness sensitivity of whole of paper, owing to once bumping against whole measuring rolls when measuring roll charged into by paper, move tempestuously so existence detects block because of this shock, in the detection output wave shape obtained, occur the problem of ballistic kick (kick).In addition, also exist because of stop when measuring roll charged into by paper, the problem of paper blocking occurs.
Summary of the invention
The problem that invention will solve
The present invention completes in view of above-mentioned various problem points, its object is to, a kind of paper sheet thickness is provided to detect detecting device, consist of the fine setting do not needed when the setting of measuring roll, the detection of the position of Thickness sensitivity and adhesive tape can be carried out, and alleviate the ballistic kick of output wave shape when paper is charged into, even if the action of measuring roll or reference roller also can not be limited when removing the foreign matter be attached in measuring roll or reference roller.
In addition, as in the past, owing to being formed attached gesture parts measuring roll being contacted all the time reference roller by different parts, and for the detection part of the displacement that detects measuring roll, so the structure of measuring roll part becomes complicated.The object of the invention is to, by forming this attached gesture parts and detection part by parts, thus realizing the simplification of the structure of measuring roll part.
For solving the means of problem
The present invention relates to paper sheet thickness detection device, above-mentioned purpose of the present invention is realized by following paper sheet thickness detection device, the feature of this paper sheet thickness detection device is, comprising: reference roller, to be arranged on the S. A. that is fixed and to be the determinating reference of thickness; Measuring roll, is set to opposed with described reference roller and contacts; Detect block, at one end portion is provided with described measuring roll, and the other end is rotatably fixed centered by bolster, according to the rotational displacement by the paper sheet thickness between described reference roller and described measuring roll; Maintainance block, at least keeps the bolster of described detection block; First pressing component, is fixed on described maintainance block, presses the part of described detection block and the compactness maintained between described measuring roll and described reference roller; Displacement detection parts, detect the shift amount of described measuring roll; And second pressing component, when detecting the thickness of described paper, the direction being adjacent to described reference roller to described measuring roll presses described maintainance block.
In addition, above-mentioned purpose of the present invention realizes by the following method and effectively, comprise for giving pushing by the two ends from described bolster, thus suppress the fluctuating suppression component of the fluctuating of described measuring roll, or, top base installs described maintainance block via Compress Spring, this top base is arranged on the bottom base of the S. A. being fixed with described reference roller.
In addition, above-mentioned purpose of the present invention realizes by the following method and effectively, to generally perpendicularly touch described measuring roll and the laminal scraper plate removing the foreign matter be attached on described measuring roll along with the rotation of described measuring roll is fixed on described detection block, or, touch described reference roller by with the pressure of regulation and remove the scraper plate of the resin type of the foreign matter be attached in described reference roller along with the rotation of described reference roller, be fixed on described bottom base via the leaf spring be integrally formed with this scraper plate, and the opening portion arranged on described bottom base for the foreign matter be removed described in discharging.
In addition, above-mentioned purpose of the present invention realizes by the following method and effectively, the S. A. of described measuring roll two kinds different from the distance between described bolster detect block and are configured on described bolster across, and described measuring roll is arranged in a staggered along described bolster direction.
Accompanying drawing explanation
Fig. 1 is the figure of the principle of Thickness sensitivity for illustration of paper sheet thickness detection device of the present invention.
Fig. 2 is the block diagram of the detection block having installed measuring roll.
Fig. 3 represents to configure multiple detecting unit on bolster, and configures the skeleton diagram of the paper sheet thickness detection device of multiple reference roller on the rotary shaft.
Fig. 4 be represent measuring roll and reference roller from the figure of situation.
Fig. 5 (A) and Fig. 5 (B) is the figure of the comparison of the output wave shape representing displacement detection parts (displacement transducer).
Fig. 6 represents to configure multiple detection block being provided with measuring roll on bolster, and is given the figure of the situation of pushing from the two ends of bolster by Compress Spring.
Fig. 7 (A) and Fig. 7 (B) represents that different two kinds of distance between the bolster of alternately configuration detection block and the S. A. of measuring roll detect blocks, and the figure of paper sheet thickness detection device that measuring roll is arranged in a staggered.
Fig. 8 represents figure when seeing Fig. 7 from axis.
Fig. 9 is figure when representing the scraper plate contacted in reference roller for removing foreign matter.
Figure 10 is the enlarged drawing of scraper plate in fig .9.
Figure 11 is the figure of an example of the paper sheet thickness detection device represented in the past.
Detailed description of the invention
Based on accompanying drawing, describe paper sheet thickness detection device of the present invention in detail.
Fig. 1 is the figure of the principle of Thickness sensitivity for illustration of paper sheet thickness detection device of the present invention, and it comprises: reference roller 1, and S. A. is fixed and is the determinating reference of thickness; Measuring roll 2, reference roller 1 contacts and arranges; Detect block 3, at one end portion is provided with measuring roll 2, and the other end is rotatably fixed centered by bolster 4, according to the thickness by the paper P between reference roller 1 and measuring roll 2 along direction of arrow rotational displacement; Maintainance block 5, at least keeps the bolster 4 detecting block 3; Metal leaf spring 6, be fixed on maintainance block 5, the part of pressing detection block 3 and the compactness that maintains between measuring roll 2 and reference roller 1, and according to paper P by between reference roller 1 and measuring roll 2 time the rotational displacement of detection block 3, pull on upward and be shifted; And displacement detection parts (displacement transducer of metal sheet) 7, detect the shift amount of leaf spring 6 in a non-contact manner; And Signal Processing Element (sensor base plate) 8, the thickness of paper P is detected according to the output signal of displacement transducer 7.
The principle of simple declaration Thickness sensitivity, if paper P transmits and enters between reference roller 1 and measuring roll 2, then because the S. A. of reference roller 1 is fixed, so measuring roll pulls on the amount of thickness of paper P upward.Rotate freely by bolster 4 because the detection block 3 being fixed with measuring roll 2 is fixed to, if so measuring roll 2 is moved upward, detects block 3 and be also moved upward.All the time contact detection block 3, and by elastic force, the leaf spring 6 that detection block 3 is pressed downwards is shifted upward according to the amount detecting block 3 movement.The change of the distance (d) between leaf spring 6 and displacement transducer 7 exports as electric signal by displacement transducer 7, and detects as the thickness of paper P in Signal Processing Element 8.As the displacement transducer of metal sheet, the micro-miniature displacement transducer (name of product DS2001) that Japan System Development Co., Ltd. can be utilized to manufacture.In addition, above-mentioned is be illustrated for metal situation for leaf spring 6, but is not limited to metal situation, can also be resin-made.Displacement transducer now utilizes the rang sensor employing laser etc.
On the other hand, if paper P terminates by between reference roller 1 and measuring roll 2, then detect block 3 by the elastic force of leaf spring 6 and be pressed, reference roller 1 and measuring roll 2 are close to again.
Fig. 2 is the block diagram representing the detection block 3 having installed measuring roll 2, and represent that laminal scraper plate 9 is followed closely and detecting the state of block 3, described laminal scraper plate 9 removes along with the rotation of measuring roll 2 and is attached to foreign matter on measuring roll 2 (dust etc. being attached to paper transfers to the material of roller).Because scraper plate 9 generally perpendicularly touches measuring roll 2, so can foreign matter be removed and how have nothing to do with the hand of rotation of measuring roll 2.
Fig. 3 be represent to configure on bolster 4 multiple by measuring roll 2, detect the detecting unit that block 3, leaf spring 6 and displacement detection parts 7 form, and the integrally-built skeleton diagram of the paper sheet thickness detection device configuring multiple reference roller 1 on the rotary shaft and form.In an embodiment, bolster direction configures 12 these detecting units, and be configured with corresponding reference roller also opposedly.In addition, not needing necessarily split reference roller and configure, also can be a long roller.
The S. A. of reference roller is fixed on bottom base, and the maintainance block 5 being fixed with the bolster 4 detecting block 3 is fixed on top base via Compress Spring.
Maintainance block is arranged on via Compress Spring on top base, if this is because because of the bending grade of pedestal as shown in Figure 4 measuring roll 2 and reference roller 1 from and produce gap, then Thickness sensitivity can not be carried out, institute thinks and prevents from can not detecting and passing through Compress Spring, the contact portion of maintainance block side is compressed and keeps bearing (bearing), thus measuring roll and reference roller are kept correct position.
Fig. 5 is the figure of the signal output waveform representing displacement transducer.Detect block 3, by leaf spring 6, pressing is applied to opposed reference roller side, but at paper by during between reference roller and measuring roll, concavo-convex measuring roll due to the surface of paper produces and rocks, and the signal output waveform of displacement transducer occurs rise and fall ((A) figure).For alleviating this fluctuating, also consider to increase the pressing of leaf spring, if but the number of detecting unit is many, then as a whole and the antagonistic force being applied to maintainance block increases, so bad.Therefore, the mobile passivation each being detected block is considered.Specifically, as shown in Figure 6, use Compress Spring, give pushing from the both sides of the bolster 4 detecting block.So the tight ness rating between adjacent detection block increases, friction force increases, so each movement detecting block is suppressed.Its result, becomes the little waveform that to rise and fall as shown in Fig. 5 (B).
Fig. 7 (A) represents that the block by identical for the distance between the S. A. of measuring roll 2 and the bolster 4 detecting block 3 is configured with the figure of the situation of 12, due to when paper is charged between reference roller and measuring roll, once bump against the measuring roll of 24 places (12 × 2), change tempestuously so detect block because of this shock, in the output wave shape of displacement transducer, occur ballistic kick (kick) (with reference to Fig. 5).For alleviating ballistic kick, the pressing of consideration increase leaf spring 6, or the method for the pushing of increase bolster, if but the pressing of increase leaf spring, then as device is overall, its power of 12 times is applied in maintainance block, occurs the problem that the problem in intensity blocks with generation paper.In addition, if excessively increase pushing, then detect block and substantially do not move, detection sensitivity worsens.
Therefore, as as shown in Fig. 7 (B), two kinds that use the distance between the S. A. of measuring roll 2 and the bolster 4 detecting block 3 different are detected block, and they are alternately configured to staggered (zigzag), the number of the detection block once clashed into by paper reduces by half, thus reduce impact, reduce the ballistic kick of waveform.Namely, in Fig. 7 (B), when paper is charged into from the direction of arrow, clash into the measuring roll of the detection block of odd number along the direction of arrow from left side, clash into afterwards on the measuring roll of detection block of even number, thus 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 block of odd number and the detection block of even number 1mm ~ number about the mm that staggers respectively in the front and back of the S. A. of reference roller configures.
In addition, as described above, be alternately configured to staggered if detect block by two kinds, then the leading section had when paper is charged at paper applies resistance equably, prevents the effect of diagonal.In addition, in any case combination configuration, result respectively configures identical number, then have the effect that impact when paper is charged into reduces by half.
In addition, if the distance different three kinds arranged between the S. A. of measuring roll 2 and the bolster 4 detecting block 3 or four kinds detect blocks, then it is 1/3,1/4 that impact when paper is charged into can alleviate respectively.
Fig. 8 represents figure when seeing Fig. 7 (B) from axis.
Fig. 9 represents and to remove the state that the resinous scraper plate being attached to foreign matter in reference roller (dust etc. being attached to paper transfers to the material of roller) touches reference roller for the rotation along with reference roller.Contacted by scraper plate face, reference roller rotates to where, can both remove foreign matter.
Figure 10 is the enlarged drawing of scraper plate, is R shape owing to contacting the part of reference roller, and is provided with the opening portion for the dust that drops, so the foreign matter be removed is discharged to outside thickness detection apparatus in the plate spring portion be integrally formed with scraper plate.
Via leaf spring, one end is fixed on bottom base side to above-mentioned scraper plate.In addition, owing to being fixed via leaf spring, even if so scraper plate wearing and tearing, scraper plate also can not leave the surface of reference roller, and foreign object removal capabilities also can not worsen.
By the scraper plate of Fig. 2 and the scraper plate of Fig. 9, to reference roller, measuring roll removing foreign matter, correct Thickness sensitivity can be carried out.

Claims (6)

1. a paper sheet thickness detection device, is characterized in that, comprising:
Reference roller, to be arranged on the S. A. that is fixed on bottom base and to be the determinating reference of thickness;
Measuring roll, is set to opposed with described reference roller and contacts;
Detect block, at one end portion is provided with described measuring roll, and the other end is rotatably fixed centered by bolster, according to the rotational displacement by the paper sheet thickness between described reference roller and described measuring roll;
Maintainance block, to be arranged on top base and at least to keep the bolster of described detection block;
First pressing component, is fixed on described maintainance block, presses the part of described detection block and the compactness maintained between described measuring roll and described reference roller;
Displacement detection parts, detect the shift amount of described first pressing component in a non-contact manner; And
Compress Spring, when detecting the thickness of described paper, the direction being adjacent to described reference roller to described measuring roll presses described maintainance block,
Described Compress Spring is set to one end and is fixed on described top base, and the other end presses described maintainance block.
2. paper sheet thickness detection device as claimed in claim 1, is characterized in that,
The S. A. of described reference roller also arranges maintenance bearing,
Described Compress Spring is when described top base is fixed on described bottom base, the contact portion of the described maintainance block of described top base side is compressed the spring material of the described maintenance bearing of described bottom base side.
3. paper sheet thickness detection device as claimed in claim 1 or 2, is characterized in that,
1 described detection block is arranged to 2 described measuring rolls.
4. paper sheet thickness detection device as claimed in claim 1 or 2, is characterized in that, also comprise:
Laminal first scraper plate, is fixed on described detection block, and generally perpendicularly touches described measuring roll, remove by the rotation of described measuring roll the foreign matter be attached on described measuring roll.
5. paper sheet thickness detection device as claimed in claim 1 or 2, is characterized in that, also comprise:
Second scraper plate of resin type, is fixed on via the leaf spring be integrally formed on described bottom base, touches described reference roller and remove along with the rotation of described reference roller the foreign matter be attached in described reference roller with the pressure specified,
Described bottom base arranges the opening portion for the foreign matter be removed described in discharging.
6. paper sheet thickness detection device as claimed in claim 5, is characterized in that,
The fore-end of described second scraper plate is R shape.
CN201110370995.7A 2007-08-31 2007-08-31 Paper thickness detecting device Active CN102556706B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN102556706B true CN102556706B (en) 2015-04-08

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102842166B (en) * 2012-09-21 2014-08-20 广州广电运通金融电子股份有限公司 Testing device for thickness of slice medium
CN105096443B (en) * 2015-08-28 2018-02-16 广州广电运通金融电子股份有限公司 A kind of Hall thickness detection apparatus of laminated dielectric
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09190562A (en) * 1996-01-10 1997-07-22 Toshiba Corp Paper sheets thickness detector, paper sheets inspecting device and paper sheets processor
JPH10181923A (en) * 1996-12-25 1998-07-07 Toshiba Corp Paper sheet discriminator
CN2374843Y (en) * 1999-05-28 2000-04-19 马启新 Automatic detecting device for thickness of paper money
CN1627327A (en) * 2003-12-12 2005-06-15 日立欧姆龙金融系统有限公司 Bill discriminating apparatus
CN1749139A (en) * 2004-09-15 2006-03-22 日立欧姆龙金融系统有限公司 Thickness detecting apparatus
JP2007001739A (en) * 2005-06-24 2007-01-11 Oki Electric Ind Co Ltd Thickness detecting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09190562A (en) * 1996-01-10 1997-07-22 Toshiba Corp Paper sheets thickness detector, paper sheets inspecting device and paper sheets processor
JPH10181923A (en) * 1996-12-25 1998-07-07 Toshiba Corp Paper sheet discriminator
CN2374843Y (en) * 1999-05-28 2000-04-19 马启新 Automatic detecting device for thickness of paper money
CN1627327A (en) * 2003-12-12 2005-06-15 日立欧姆龙金融系统有限公司 Bill discriminating apparatus
CN1749139A (en) * 2004-09-15 2006-03-22 日立欧姆龙金融系统有限公司 Thickness detecting apparatus
JP2007001739A (en) * 2005-06-24 2007-01-11 Oki Electric Ind Co Ltd Thickness detecting device

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