CN106934917B - Hall thickness detection mechanism - Google Patents
Hall thickness detection mechanism Download PDFInfo
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- CN106934917B CN106934917B CN201710084655.5A CN201710084655A CN106934917B CN 106934917 B CN106934917 B CN 106934917B CN 201710084655 A CN201710084655 A CN 201710084655A CN 106934917 B CN106934917 B CN 106934917B
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- detection
- hall
- detection roller
- top plate
- magnet
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/16—Testing the dimensions
- G07D7/164—Thickness
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
Abstract
The invention discloses a Hall thickness detection mechanism, which comprises: the lower end of the banknote passing top plate is right opposite to the upper end of the banknote passing bottom plate; the thickness measuring datum shaft is arranged on the banknote passing bottom plate through a flange bearing; one group of Hall sensors is fixedly connected with the front side of the interior of the banknote passing top plate, the other group of Hall sensors is fixedly connected with the rear side of the interior of the banknote passing top plate, and the sensing parts of the two groups of Hall sensors are opposite; the detection roller assembly comprises a plurality of detection rollers, a detection roller supporting shaft, a plurality of detection roller brackets and a plurality of magnets, each detection roller bracket and the detection rollers and the magnets which are positioned on two sides of the detection roller bracket form a lever structure, and the fulcrum of the lever structure is the detection roller supporting shaft. Each magnet corresponds to two Hall sensors positioned at two sides of the magnet, and when the magnet is close to the Hall sensor at one side, the magnet can be far away from the Hall sensor at the other side, so that the displacement of the magnet can be amplified, and the measurement precision is improved.
Description
Technical Field
The invention relates to the technical field of thickness detection, in particular to a Hall thickness detection mechanism.
Background
In order to inspect each sheet type valuable document (such as paper money, checks, money orders and the like) processed in batch one by one in financial self-service equipment, the whole stack of sheet type valuable documents needs to be separated one by one, and then identification means such as image identification, thickness detection, magnetic information detection and the like are carried out on the separated single sheet type valuable documents so as to ensure the authenticity of the processed sheet type valuable documents, wherein the thickness detection of the paper money is an indispensable identification means. At present, sheet-shaped media with certain thickness characteristics are generally made of special materials, and tapes, folding angles and the like adhered to banknotes can be identified through the thickness characteristics of the sheet-type valuable documents, so that unqualified banknotes are removed. Therefore, in financial services, reliable identification of the thickness of the value document is of great importance for the authenticity identification of the value document.
Disclosure of Invention
In view of the above-mentioned problems, an object of the present invention is to provide a hall thickness detection mechanism.
In order to achieve the purpose, the invention adopts the technical scheme that:
a hall thickness detection mechanism, comprising: the lower end of the banknote passing top plate is right opposite to the upper end of the banknote passing bottom plate; the thickness measuring reference shaft is arranged on the banknote passing bottom plate through a flange bearing; the detection assembly comprises a plurality of Hall sensors which are divided into two groups, one group of Hall sensors are fixedly connected with the front side of the interior of the banknote-passing top plate, the other group of Hall sensors are fixedly connected with the rear side of the interior of the banknote-passing top plate, and the sensing parts of the two groups of Hall sensors are opposite; the detection roller assembly comprises a plurality of detection rollers, a detection roller supporting shaft, a plurality of detection roller brackets and a plurality of magnets, wherein the detection roller supporting shaft penetrates through the middle parts of the side surfaces of the detection roller brackets, the detection roller supporting shaft is fixedly connected with the detection roller brackets, the lower end of each detection roller bracket is hinged with one detection roller, the upper end of each detection roller bracket is fixedly provided with one magnet, each detection roller bracket and the detection rollers and the magnets which are positioned on the two sides of the detection roller bracket form a lever structure, and the fulcrum of the lever structure is the detection roller supporting shaft; the detection rollers are in contact with the thickness measuring reference shaft, the magnets are located between the two groups of Hall sensors, and each magnet is matched with one Hall sensor arranged on the front side of the banknote passing top plate and one Hall sensor arranged on the rear side of the banknote passing top plate; when paper money enters between the detection roller and the thickness measuring reference shaft, the magnet is displaced through the lever structure, the Hall sensor arranged on the front side of the paper money passing top plate and the Hall sensor arranged on the rear side of the paper money passing top plate detect displacement information of the magnet, the displacement of the magnet is amplified through the two Hall sensors, and the thickness of the paper money is accurately measured.
The Hall thickness detection mechanism comprises a Hall thickness detection roller support, wherein one side of the middle of the Hall thickness detection roller support is provided with a torsion spring pressing plate and a torsion spring, each torsion spring is sleeved on a detection roller supporting shaft, one torsion arm of each torsion spring supports against the torsion spring pressing plate, one torsion arm of each torsion spring supports against the paper money passing top plate, and the torsion springs enable the detection rollers to be in contact with a thickness measuring reference shaft.
The hall thickness detection mechanism, wherein, still include a dust collector, dust collector includes: one end of the compression elastic sheet is provided with a dust removal plastic head which is abutted against the thickness measuring reference shaft; the other end of the pressing spring is inserted into the spring pressing plate, and the spring pressing plate is fixedly connected with the banknote passing bottom plate.
In the hall thickness detection mechanism, the dust removal plastic head is fixedly connected with one end of the compression spring plate in an injection molding manner.
The hall thickness detection mechanism further comprises a plurality of dust removal pieces, each dust removal piece is fixedly connected with one detection roller support through a screw, and each dust removal piece is respectively abutted against one detection roller.
In the hall thickness detection mechanism, the sensing parts of the two hall sensors are both located in the magnetic range of the magnets.
In the hall thickness detection mechanism, the detection assembly is pressed on the banknote passing top plate through the pressure spring.
In the hall thickness detection mechanism, the number of the plurality of detection rollers, the number of the plurality of detection roller supports and the number of the plurality of magnets are twelve.
Due to the adoption of the technology, compared with the prior art, the invention has the following positive effects:
(1) each magnet corresponds to two Hall sensors positioned at two sides of the magnet, and when the magnet is close to the Hall sensor at one side, the magnet can be far away from the Hall sensor at the other side, so that the displacement of the magnet can be amplified, and the measurement precision is improved.
Drawings
Fig. 1 is a schematic diagram of a hall thickness detection mechanism of the present invention.
Fig. 2 is a side schematic view of the hall thickness detection mechanism of the present invention.
Fig. 3 is a partial schematic view of the hall thickness detection mechanism of the present invention.
Fig. 4 is a schematic position diagram of the hall thickness detection mechanism of the present invention.
Fig. 5 is a schematic position diagram of the hall thickness detection mechanism of the present invention.
In the drawings: 1. a banknote passing top plate; 2. a banknote passing bottom plate; 3. a thickness measurement reference axis; 4. a Hall sensor; 5. detecting the roller assembly; 51. a detection roller; 52. a detection roller supporting shaft; 53. a detection roller support; 531. a torsion spring pressing plate; 532. a torsion spring; 54. a magnet; 61. pressing the elastic sheet; 62. dedusting plastic heads; 63. a spring plate pressing plate; 7. a dust removal sheet.
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Fig. 1 is a schematic view of a hall thickness detection mechanism of the present invention, fig. 2 is a schematic side view of the hall thickness detection mechanism of the present invention, fig. 3 is a schematic partial view of the hall thickness detection mechanism of the present invention, and please refer to fig. 1, fig. 2, and fig. 3, which show a hall thickness detection mechanism of a preferred embodiment, including: the lower end of the banknote passing top plate 1 is right opposite to the upper end of the banknote passing bottom plate 2.
In addition, as a preferred embodiment, the hall thickness detection mechanism further includes: and the thickness measuring reference shaft 3 is arranged on the banknote passing base plate 2 through a flange bearing. The thickness measuring reference axis 3 is used as a reference for measuring the thickness of the bill.
In addition, as a preferred embodiment, the hall thickness detection mechanism further includes: the detection assembly comprises a plurality of Hall sensors 4, the Hall sensors 4 are divided into two groups, one group of Hall sensors 4 are fixedly connected with the front side of the interior of the banknote-passing top plate 1, the other group of Hall sensors 4 are fixedly connected with the rear side of the interior of the banknote-passing top plate 1, and the sensing parts of the two groups of Hall sensors 4 are opposite to each other.
In addition, as a preferred embodiment, the hall thickness detection mechanism further includes: detect roller subassembly 5, detect roller subassembly 5 including a plurality of detection rollers 51, a detection roller support axle 52, a plurality of detection roller support 53 and a plurality of magnet 54, detection roller support axle 52 runs through the middle part of the side of a plurality of detection roller support 53, detection roller support axle 52 and a plurality of detection roller support 53 fixed connection, the lower extreme of each detection roller support 53 articulates there is a detection roller 51, the upper end of each detection roller support 53 is fixed with a magnet 54, each detection roller support 53 and the detection roller 51 and the magnet 54 that are located detection roller support 53 both sides all form a lever structure, the fulcrum of lever structure is detection roller support axle 52.
In addition, in the preferred embodiment, a plurality of detection rollers 51 are in contact with the thickness measuring reference shaft 3, a plurality of magnets 54 are positioned between two groups of hall sensors 4, and each magnet 54 is matched with one hall sensor 4 installed on the front side of the banknote passing top plate 1 and one hall sensor 4 installed on the rear side of the banknote passing top plate 1.
In addition, in a preferred embodiment, a torsion spring pressing plate 531 and a torsion spring 532 are disposed on one side of the middle portion of each detection roller bracket 53, each torsion spring 531 is sleeved on the detection roller supporting shaft 52, a torsion arm of each torsion spring 532 abuts against the torsion spring pressing plate 531, the other torsion arm of each torsion spring 532 abuts against the banknote passing top plate 1, and the plurality of detection rollers 51 are in contact with the thickness measuring reference shaft 3 through the plurality of torsion springs 532. So that the detection roller 51 can be brought into close contact with the thickness measuring reference shaft 3 when no bill passes between the detection roller 51 and the thickness measuring reference shaft 3.
The above are merely preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the present invention, please continue to refer to fig. 1, fig. 2 and fig. 3, further comprising a dust removing device, wherein the dust removing device comprises: compress tightly shell fragment 61 and shell fragment clamp plate 63, compress tightly the one end of shell fragment 61 and be provided with dust removal plastic head 62, dust removal plastic head 62 supports in thickness measurement reference shaft 3. The other end of the pressing spring piece 61 is inserted into the spring piece pressing plate 63, and the spring piece pressing plate 63 is fixedly connected with the banknote passing bottom plate 2. The dust removal device is used for measuring foreign matters on the paper money on the thickness reference shaft 3 so as to influence the measurement result.
In a further embodiment of the present invention, the dust-removing plastic head 62 is fixedly connected to one end of the pressing spring 61 by injection molding.
In a further embodiment of the present invention, the present invention further comprises a plurality of dust removing sheets 7, each dust removing sheet 7 is fixedly connected to a detection roller bracket 53 through a screw 71, and each dust removing sheet 7 is respectively abutted to a detection roller 51. The dust removal sheet 7 is used for preventing the detection roller 51 from being contaminated by foreign matters on the paper money so as to influence the measurement result.
In a further embodiment of the invention, the sensing portions of both hall sensors 4 are located within the magnetic range of the plurality of magnets 54.
In a further embodiment of the invention, the detection assembly is pressed on the banknote passing top plate 1 through a pressure spring.
In a further embodiment of the present invention, with continued reference to fig. 1, each of the number of the plurality of inspection rollers 51, the number of the plurality of inspection roller holders 53, and the number of the plurality of magnets 54 is twelve.
The working principle of the invention is explained below:
when paper money enters between the thickness measuring reference shaft 3 and the detection rollers 51, since the thickness measuring reference shaft 3 is a fixed shaft, the detection rollers 51 are displaced upward by the upward force of the thickness of the paper, and further the detection roller support 53 is driven to rotate around the detection roller support shaft 52, so that the magnet 54 on the detection roller support 53 is shifted to one side.
Fig. 4 is a schematic position diagram of the hall thickness detecting mechanism of the present invention, and as shown in fig. 3, when there is no paper money between the thickness measuring reference shaft 3 and the detecting roller 51, the detecting roller 51 is tightly attached to the thickness measuring reference shaft 3 due to the torsion spring 532, and the magnet 54 is located at the reference position.
Fig. 5 is a schematic position diagram of the hall thickness detecting mechanism of the present invention, please refer to fig. 5, when paper money enters between the thickness measuring reference shaft 3 and the detecting roller 51, the detecting roller 51 is forced upward, the magnet 54 is shifted to the right as shown in fig. 5 due to the lever structure, and at this time, the magnet 54 is far away from the hall sensor 4 on the left side and close to the hall sensor 4 on the right side, and both hall sensors 4 receive the displacement signal of the magnet 54, so the displacement of the magnet 54 is amplified, and the setting is more accurate compared with the one-side hall sensor 4.
In addition, the present invention provides a plurality of sensing roller assemblies 5 arranged in parallel with the sensing roller supporting shaft 52, thereby simultaneously sensing the width and thickness of the paper money.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (4)
1. A Hall thickness detection mechanism, characterized by, includes:
the lower end of the banknote passing top plate is right opposite to the upper end of the banknote passing bottom plate;
the thickness measuring reference shaft is arranged on the banknote passing bottom plate through a flange bearing;
the detection assembly comprises a plurality of Hall sensors which are divided into two groups, one group of Hall sensors are fixedly connected with the front side of the interior of the banknote-passing top plate, the other group of Hall sensors are fixedly connected with the rear side of the interior of the banknote-passing top plate, and the sensing parts of the two groups of Hall sensors are opposite;
the detection roller assembly comprises a plurality of detection rollers, a detection roller supporting shaft, a plurality of detection roller brackets and a plurality of magnets, wherein the detection roller supporting shaft penetrates through the middle parts of the side surfaces of the detection roller brackets, the detection roller supporting shaft is fixedly connected with the detection roller brackets, the lower end of each detection roller bracket is hinged with one detection roller, the upper end of each detection roller bracket is fixedly provided with one magnet, each detection roller bracket and the detection rollers and the magnets which are positioned on the two sides of the detection roller bracket form a lever structure, and the fulcrum of the lever structure is the detection roller supporting shaft;
the detection rollers are in contact with the thickness measuring reference shaft, the magnets are located between the two groups of Hall sensors, and each magnet is matched with one Hall sensor arranged on the front side of the banknote passing top plate and one Hall sensor arranged on the rear side of the banknote passing top plate;
when paper money enters between the detection roller and the thickness measuring reference shaft, the magnet is displaced through the lever structure, the Hall sensor arranged on the front side of the paper money passing top plate and the Hall sensor arranged on the rear side of the paper money passing top plate detect displacement information of the magnet, the displacement of the magnet is amplified through the two Hall sensors, and the thickness of the paper money is accurately measured;
still include a dust collector, dust collector includes:
one end of the compression elastic sheet is provided with a dust removal plastic head which is abutted against the thickness measuring reference shaft;
the other end of the pressing spring is inserted into the spring pressing plate, and the spring pressing plate is fixedly connected with the banknote passing bottom plate;
the dust removal plastic head is fixedly connected with one end of the compression spring piece in an injection molding mode;
the detection assembly is pressed on the banknote passing top plate through a pressure spring;
the number of the detection rollers, the number of the detection roller brackets and the number of the magnets are twelve.
2. The Hall thickness detecting mechanism according to claim 1, wherein a torsion spring pressing plate and a torsion spring are disposed on one side of a middle portion of each detecting roller support, each torsion spring is sleeved on the detecting roller supporting shaft, a torsion arm of each torsion spring abuts against the torsion spring pressing plate, another torsion arm of each torsion spring abuts against the banknote passing top plate, and the plurality of detecting rollers are in contact with the thickness measuring reference shaft through the plurality of torsion springs.
3. The Hall thickness detecting mechanism according to claim 1, further comprising a plurality of dust removing pieces, wherein each dust removing piece is fixedly connected with one of the detecting roller brackets through a screw, and each dust removing piece abuts against one of the detecting rollers.
4. The hall thickness detection mechanism of claim 1, wherein the sensing portions of both of the hall sensors are located within the magnetic range of the plurality of magnets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084655.5A CN106934917B (en) | 2017-02-16 | 2017-02-16 | Hall thickness detection mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084655.5A CN106934917B (en) | 2017-02-16 | 2017-02-16 | Hall thickness detection mechanism |
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| CN106934917A CN106934917A (en) | 2017-07-07 |
| CN106934917B true CN106934917B (en) | 2020-05-22 |
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| CN201710084655.5A Active CN106934917B (en) | 2017-02-16 | 2017-02-16 | Hall thickness detection mechanism |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108230533A (en) * | 2017-12-26 | 2018-06-29 | 湖南丰汇银佳科技股份有限公司 | Composite type safety line anti-counterfeiting detecting device and method |
| CN108917577A (en) * | 2018-07-05 | 2018-11-30 | 无锡乐尔科技有限公司 | A kind of thickness detection apparatus |
| CN111879229B (en) * | 2020-08-04 | 2022-06-10 | 淮南师范学院 | Thickness detection mechanism utilizing Hall sensing |
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| CN101121343A (en) * | 2007-08-31 | 2008-02-13 | 中外合资南京富士通计算机设备有限公司 | Method suitable for printing superthick certification and printing machine |
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| CN105469497A (en) * | 2014-09-12 | 2016-04-06 | 山东新北洋信息技术股份有限公司 | Medium thickness detecting device |
| CN106296971A (en) * | 2016-08-31 | 2017-01-04 | 东方通信股份有限公司 | A kind of note surface paste high precision test identification system and method |
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- 2017-02-16 CN CN201710084655.5A patent/CN106934917B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101121343A (en) * | 2007-08-31 | 2008-02-13 | 中外合资南京富士通计算机设备有限公司 | Method suitable for printing superthick certification and printing machine |
| CN101201945A (en) * | 2007-12-21 | 2008-06-18 | 中钞长城金融设备控股有限公司 | Module for recognizing paper money |
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| CN106934917A (en) | 2017-07-07 |
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