CN108053544A - One kind is stained coin and detects removal equipment and detection method automatically - Google Patents
One kind is stained coin and detects removal equipment and detection method automatically Download PDFInfo
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- CN108053544A CN108053544A CN201810150689.4A CN201810150689A CN108053544A CN 108053544 A CN108053544 A CN 108053544A CN 201810150689 A CN201810150689 A CN 201810150689A CN 108053544 A CN108053544 A CN 108053544A
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- coin
- installing plate
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- slot
- fall
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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
- G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
- G07D5/005—Testing the surface pattern, e.g. relief
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D3/00—Sorting a mixed bulk of coins into denominations
- G07D3/02—Sorting coins by means of graded apertures
- G07D3/04—Sorting coins by means of graded apertures arranged on an inclined rail
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D3/00—Sorting a mixed bulk of coins into denominations
- G07D3/14—Apparatus driven under control of coin-sensing elements
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- General Physics & Mathematics (AREA)
- Adornments (AREA)
- Testing Of Coins (AREA)
Abstract
The invention belongs to financial instrument technical fields, and in particular to one kind is stained coin and detects removal equipment and detection method automatically；Including coin conveying device, the first installing plate, pressure coin device, gear coin device, coin device for eliminating, Coin over-turning device and image acquiring device, it is a kind of equipment for detecting and rejecting automatically to being stained coin using machine vision technique, the coin that is stained that existing circulation can be directed to detect automatically, rejected, and qualified coin can be classified automatically, to solve the problems, such as that examination criteria disunity, labor intensive are more existing for current artificial detection, labor intensity is big, efficiency is low.
Description
Technical field
The invention belongs to financial instrument technical fields, and in particular to one kind is stained coin and detects removal equipment and detection automatically
Method.
Background technology
A kind of fractional currency of the coin as RMB, has a wear-resistant, circulation long lifespan, easy to use, but convenient for from
Dynamic the features such as servicing of selling goods, is greatly saved emission of banknotes cost and print paper money expense.The coin of China's circulation at present mainly has
Three kinds, be unitary coin, five jiaos of Bi Heyi angles coin respectively, due to artificial destruction, abrasion, oxidation, erosion during specie flow
Wait a variety of causes cause coin deformation, lack split, there is corrosion pit in surface, rust stain etc., word, denomination number, the pattern of coin
Etc. surface characteristics can not effectively identify.What People's Bank of China formulated《Should not circulate the fastidious standard of RMB》Regulation：Coin has
One of the situations such as perforation, breach deform, and wear, oxidation, and word, denomination number, dim pattern are unclear should not circulate.With
" the bottom surface volume currency coin " that China is progressively carrying out, market coin circulation will constantly increase, and the thing followed is residual
Damaging the identification of coin and exchanging work can also increase therewith.The discriminating for being stained coin was substantially using artificial detection in the past
Method, there are examination criteria disunity, the shortcomings such as labor intensive is more, labor intensity is big, efficiency is low.
The content of the invention
The present invention for the above-mentioned prior art present in problem, provide one kind and be stained coin and detect removal equipment automatically
And detection method, it is a kind of equipment for detecting and rejecting automatically to being stained coin using machine vision technique, can be directed to existing
The coin that is stained of circulation detect automatically, rejected, and qualified coin can be classified automatically, to solve current artificial detection
Existing examination criteria disunity, the problem of labor intensive is more, labor intensity is big, efficiency is low.
One kind is stained coin and detects removal equipment automatically, including coin conveying device 1, the first installing plate 3, pressure coin device 6,
Keep off coin device 7, coin device for eliminating 8, Coin over-turning device 4 and image acquiring device 10；
Coin conveying device 1 includes rotating disk 12, hopper 13, coin separator disk 11, the second installing plate 14 and rotating disk
Driving motor 15, wherein hopper 13 are riveted together with coin separator disk 11, and the outer ring of rotating disk 12 is provided with multiple load coin slots
121, the circular hole 111 that diameter is of same size with carrying 121 opening of coin slot is provided on coin separator disk 11, rotating disk 12 is flexibly connected
In coin separator disk 11, and the position on 111 place coin separator disk 11 of circular hole enables to rotating disk 12 to be separated in coin
Also can be by circular hole 111 by carrying the coin of coin slot 121 when being rotated on disk 11, coin separator disk 11 is fixed on the second installing plate 14
On, and on the second installing plate 14 circular arc type groove 141, the width and coin of circular arc type groove 141 are equipped with 111 corresponding position of circular hole
The diameter of circular hole 111 is identical on separator disk 11, and the second installing plate 14 is folded sheet, is not provided with the side plate of circular arc type groove 141
It is used to support, the first installing plate 3 is fixed at the folding in 14 outside of the second installing plate, and the two fits closely together, driving electricity
The output shaft of machine 15 is connected through the first installing plate 3, the second installing plate 14 and coin separator disk 11 with rotating disk 12 so that rotation
Disk 12 rotates under the driving of driving motor 15；
First installing plate 3 is equipped with opening 31,32 and second through hole 33 of first through hole, and the first track 2 is fixed on the second peace
On the inside of 141 lower section of circular arc type groove to the first installing plate 3 at opening 31 in loading board 14, and between the first track 2 and horizontal plane
Angle be 20 °, outsides for being fixed on the first installing plate 3 close to switch 5, and flat close to the sensitive surface of switch 5 and the first track 2
Together；
Coin over-turning device 4 is arranged at the opening 31 of the first installing plate 3, Coin over-turning device 4 include turn-over motor 41,
Link 42, swing-around trajectory 43 and transparency glass plate 44, wherein turn-over motor 41 are servomotor, and link 42 is fixed on turn-over
It on motor 41 and is bolted on the first installing plate 3, the motor shaft of turn-over motor 41 passes through link 42 and swing-around trajectory 43
Connection, and swing-around trajectory 43 is concordant with the first track 2, and two pieces of transparency glass plates 44, two transparent glass are equipped on swing-around trajectory 43
Gap between glass plate 44 is more than the thickness of most thick coin, and turn-over motor 41 is closed-loop control, and rotation angle is when controlling turn-over
180°；
Pressure coin device 6 is fixed on 31 top of opening on the first installing plate 3 and on the first installing plate 3, i.e., coin turns over
4 top of face device, pressure coin device 6 include pressure coin electromagnet 62 and banknote pressing plate 61, wherein pressure coin electromagnet 62 is fixed on the first peace
The top of loading board 3, and be connected with banknote pressing plate 61 below, 61 lower end profile of banknote pressing plate are arc-shaped, and the bore of the circular arc
More than the diameter of largest coins, the thickness of banknote pressing plate 61 is identical with the thickness of most thick coin, and banknote pressing plate 61 is located at Coin over-turning dress
Between putting two transparency glass plates 44 on 4, banknote pressing plate 61 its bottom and swing-around trajectory 43 when pressing coin 62 no power of electromagnet
The distance between be more than largest coins diameter, to ensure that coin can pass freely through；
Gear coin device 7 is fixed on the outside of the first installing plate 3, gear coin device 7 include gear coin folded sheet 71, coin baffle 72,
Coin baffle track 73 and gear coin electromagnet 74, wherein gear coin folded sheet 71 is spliced for L shaped plate and rectangular slab, keep off coin electromagnetism
Iron 74 is fixed on above the L shaped plate of gear coin folded sheet 71, and coin baffle track 73 is perpendicularly fixed on the first installing plate 3, and closely
It swing-around trajectory 43 to set, coin baffle 72 is located on coin baffle track 73 and with keeping off the extension bar of coin electromagnet 74 and being bolted makes
Coin baffle 72 is obtained as the extension bar of gear coin electromagnet 74 stretches and is slided on coin baffle track 73, coin baffle 72 is slid into
So as to block the coin slided from swing-around trajectory 43 at swing-around trajectory 43, the rectangular slab of gear coin folded sheet 71 is bolted to the
The outside of one installing plate 3；
Second track 9 is fixed on by swing-around trajectory 43 and setting concordant with swing-around trajectory 43 on the first installing plate 3, is rotated
There is certain distance between 43 and second track 9 of track, which is less than the diameter of minimum coin, ensures coin from swing-around trajectory 43
On slide on the second track 9 and do not fall out, coin slot 95 is provided on the second track 9, first falls coin slot 91, second fall coin slot
92nd, the 3rd falls coin slot 93 and the 4th and falls coin slot 94, consolidates wherein falling 95 position of coin slot for the second track 9 and the first installing plate 3
At the first through hole 32 on the first installing plate 3 after fixed, first falls coin slot 91, second falls coin slot 92, the 3rd falls coin slot 93 and the
Four fall 94 position of coin slot for the second through hole 33 on the first installing plate 3 after the second track 9 and the fixation of the first installing plate 3
Place, the correspondence position on coin slot 95 and four the first installing plates 3 fallen below coin slot is fallen are fixed with coin-accepting box 16, first fall coin
Box 161, second, which fall coin box the 162, the 3rd and fall coin box 163 and the 4th, falls coin box 164 so that from fall coin slot 95, first fall coin slot 91,
Second fall coin slot 92, the 3rd fall coin slot 93 and the 4th fall the coin fallen on coin slot 94 can be by the first installing plate 3
Fixed coin-accepting box 16 on the first installing plate 3 is respectively fallen in after one through hole 32 and the second through hole 33, first falls coin box 161, second
Fall coin box the 162, the 3rd and fall coin box 163 and the 4th to fall in coin box 164；
Coin device for eliminating 8 is fixed on the outside of the first installing plate 3, and coin device for eliminating 8 includes coin and rejects folded sheet
81st, coin rejects baffle 82, coin rejects baffle track 83 and coin rejects electromagnet 84, and it is solid to reject electromagnet 84 for wherein coin
It is scheduled on coin to reject above 81 side plate of folded sheet, coin rejects 81 another side plate bolt of folded sheet and is connected to the first installing plate 3
On, coin is rejected baffle track 83 and is arranged on the side plate that 84 place coin rejecting 81 homonymy of folded sheet of electromagnet is rejected with coin
It is fixedly connected with the first installing plate 3, coin rejects baffle 82 and is located on coin rejecting baffle track 83 and rejects electromagnetism with coin
Iron 84 is flexibly connected so that coin is rejected baffle 82 and can be slided on coin rejecting baffle track 83, and coin rejects electromagnet
During 84 no power, coin rejects baffle 82 and is in extended position, and can extend into the first through hole 32 on the first installing plate 3,
First through hole 32 is located to fall at coin slot 95, therefore coin rejects when baffle 82 is in extended position and to slide on the second track 9
Coin do not drop from falling coin slot 95, but reject baffle 82 along coin and continue four on the second track 9 and fall coin slot side
To slip；
Image acquiring device 10 is fixed on 3 inside of the first installing plate, and image acquiring device 10 includes camera 102, camera lens
103rd, light source 104 and mounting bracket 101, wherein camera 102, camera lens 103 and light source 104 are fixed in mounting bracket 101, and are protected
Demonstrate,prove its center line on the same axis, and camera lens 103 faces the transparency glass plate 44 of Coin over-turning device 4 with light source 104, protects
Card swing-around trajectory 43 can be completely projected in camera lens 103, to ensure that the image of coin surface complete display, camera can be obtained
102 are connected with camera lens 103, and for camera 102 with being connected close to 5 control of switch, 101 side of mounting bracket is fixed on the first installing plate 3
On.
The arc-shaped slot 141 is parallel with the second track 9 and the first track 2.
It is described close to switch 5 be a Hall switch.
Second installing plate 14 is a folded sheet (angle folding be 80 °), the stent as coin conveying device 1.
The width and length of the load coin slot 121 are respectively greater than the diameter of any one coin, and less than two minimums
The sum of coin diameter.
The thickness of the rotating disk 12 is identical with most thin coin thickness, there are one in each load coin slot 121 of guarantee only
Coin.
There is certain distance between 43 and first track 2 of swing-around trajectory, which is less than the diameter of minimum coin, protects
Card coin, which is slided into from the first track 2 on swing-around trajectory 27, not to be fallen out.
Described rejects electromagnet 84, turn-over motor close to switch 5, gear coin electromagnet 74, pressure coin electromagnet 62, coin
41st, camera lens 103 and light source 104 are connected respectively with control system by polygon control survey, while image is additionally provided in control system
Processing unit, for differentiating the quality of coin quality.
Present invention simultaneously provides it is a kind of using above-mentioned one kind be stained coin detect automatically removal equipment be stained coin from
The detection method of dynamic detection, is as follows：
Coin to be detected is packed into hopper 13 by step 1, starts driving motor 15, and driving motor 15 drives rotating disk 12 to revolve
Turn, moved together with the rotation of rotating disk 12 into the coin for carrying coin slot 121, when rotating disk 12 move to carry coin slot 121 with
During 111 overlapping positions of circular hole on coin separator disk 11, the coin in coin slot 121 is carried under the effect of gravity through coin separator disk 11
On circular hole 111 fall into the circular arc type groove 141 of the second installing plate 14, then from arc-shaped slot 141 outflow after along first installation
Plate 3 is rolled down on the first track 2, and after coin switchs 5 sensitive surface by approaching, and coin is after by the first track 2
The swing-around trajectory 43 of Coin over-turning device 4 is entered back into, continues to scroll down through between two transparency glass plates 44, encounters coin baffle
Stop after 72, send a signal to control system control pressure coin device 6 close to switching 5 so that pressure coin electromagnet 62, which is powered, drives pressure
Coin plate 61 moves downward, will be by the coin that coin baffle 72 blocks automatic centering under the action of its circular arc；Afterwards close to 5 hair of switch
The number of delivering letters is taken pictures to control system control camera 102, and shot image is transferred to image processing unit and is handled, and is obtained hard
Coin surface quality situation carries out subsequent action according to coin criterion is stained；
Step 2 if the one side that coin is taken pictures is off quality, need not carry out judgement of taking pictures to coin another side,
It need to directly reject, camera 102 has communicated information to image processing unit at this time, and image processing unit distinguishes that coin quality does not conform to
Lattice then send signal control pressure coin electromagnet 62 by control system and power off, while gear coin electromagnet 74, coin is controlled to reject electricity
Magnet 84 is powered simultaneously, and the coin in swing-around trajectory 43 is rolled into the second track 9 under the effect of gravity to be continued to roll, when to
Up to be located on the second track 9 when falling coin slot 95, baffle 82 is rejected due to coin at this time and is retracted, coin falls into through falling coin slot 95 and connects
In coin box 16；
If coin surface quality is qualified, the motor shaft for controlling turn-over motor 41 by control system drives swing-around trajectory
43 180 ° of rotations, camera 102 takes pictures and communicates information to the image processing unit in control system again, passes through image procossing list
Member judges the quality on another surface of coin, if this face surface quality of coin is unqualified, performs program same as described above, no
Qualified coin is fallen into the coin-accepting box 16 of unqualified coin；
If the coin surface quality is qualified, image processing unit will control pressure coin electromagnet 62 to break by control system
Electricity, coin reject electromagnet 84 and power off, keep off coin electromagnet 74 and be powered, and the coin in swing-around trajectory 43 rolls under the effect of gravity
Continue to roll into the second track 9, when reach be located on the second track 9 when falling coin slot 95, since coin at this time rejects baffle
82 are in stretching state, and coin continues to roll along the second track 9, reach in the first installing plate 3 after coin rejects baffle 82
On be equipped with that width is different falls in coin slot according to different coin diameters, fall the width of coin slot by ascending downward arrangement；Diameter
Following first, which is fallen directly into, when falling coin slot 91 (width 20mm) by most narrow first for the disme of 19mm falls coin box
161；5 jiaos of coins (diameter 20.5mm) fall coin slot 91 by foregoing most narrow first to be fallen down, and continue rolling downwards
It is dynamic, it reaches second and falls coin slot 92 (width 21.5mm), fall into following second and fall coin box 162；1 jiao of a diameter of 22.5mm is hard
Coin falls coin slot by foregoing two to fall down, and reach and the 3rd fall coin slot 93 (width 24mm), fall into following the
Three fall coin box 163；1 yuan of coin (diameter 25mm) falls coin slot by foregoing three to be fallen down, and reach the 4th and fall coin
Slot 94 (width 28mm) falls into following the 4th and falls in coin box 164.
Beneficial effects of the present invention：
The coin that is stained that the present invention can be directed to existing circulation detect automatically, rejected, and can carry out qualified coin
Automatic classification, to solve, examination criteria disunity, labor intensive existing for current artificial detection are more, labor intensity is big, efficiency is low
The problem of.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the side view of the present invention.
Fig. 3 is coin transport conveyor constructions schematic diagram of the present invention.
Fig. 4 is present invention gear coin apparatus structure schematic diagram.
Fig. 5 is present invention pressure coin apparatus structure schematic diagram.
Fig. 6 is coin device for eliminating structure diagram of the present invention.
Fig. 7 is Coin over-turning apparatus structure schematic diagram of the present invention.
Fig. 8 is image acquiring device structure diagram of the present invention.
Fig. 9 is detection process flow chart of the present invention.
Wherein：1 coin conveying device, 12 rotating disks, 121 carry coin slot, 13 hoppers, 11 coin separator disks, circular hole 111,14
Second installing plate, 141 circular arc type grooves, 15 spinning disk drive motors, 2 first tracks, 3 first installing plates, 31 openings, 32 first lead to
Hole, 33 second through holes, 4 Coin over-turning devices, 41 turn-over motors, 42 links, 43 swing-around trajectories, 44 transparency glass plates, 5 approach
Switch, 6 pressure coin devices, 61 banknote pressing plates, 62 pressure coin electromagnet, 7 gear coin devices, 71 gear coin folded sheets, 72 coin baffles, 73 coin baffles
Track, 74 gear coin electromagnet, 8 coin device for eliminating, 81 coins reject folded sheet, 82 coins rejecting baffle, 83 coins and reject gear
Plate track, 84 coins reject electromagnet, 9 second tracks, 91 first fall coin slot, 92 second fall coin slot, 93 the 3rd fall coin slot, 94 the
Four fall coin slot, 95 fall coin slot, 10 image acquiring devices, 101 mounting brackets, 102 cameras, 103 camera lenses, 104 light sources, 16 connect coin
Box, 161 first fall coin box, 162 second fall coin box, 163 the 3rd fall coin box, 164 the 4th fall coin box.
Specific embodiment
The present invention is described further with reference to embodiment, but protection scope of the present invention is not limited in described
Hold.
Embodiment 1
As depicted in figs. 1 and 2, one kind is stained coin and detects removal equipment automatically, pacifies including coin conveying device 1, first
Loading board 3, pressure coin device 6, gear coin device 7, coin device for eliminating 8, Coin over-turning device 4 and image acquiring device 10；
As shown in figure 3, coin conveying device 1 includes rotating disk 12, hopper 13, coin separator disk 11, the second installing plate 14
With driving motor 15, wherein hopper 13 is riveted together with coin separator disk 11, and the outer ring of rotating disk 12 is provided with multiple load coin slots
121, the circular hole 111 that diameter is of same size with carrying 121 opening of coin slot is provided on coin separator disk 11, rotating disk 12 is flexibly connected
In coin separator disk 11, and the position on 111 place coin separator disk 11 of circular hole enables to rotating disk 12 to be separated in coin
Also can be by circular hole 111 by carrying the coin of coin slot 121 when being rotated on disk 11, coin separator disk 11 is fixed on the second installing plate 14
On, and on the second installing plate 14 circular arc type groove 141, the width and coin of circular arc type groove 141 are equipped with 111 corresponding position of circular hole
The diameter of circular hole 111 is identical on separator disk 11, and the second installing plate 14 is folded sheet, is not provided with the one side of circular arc type groove 141
Side plate plays a supportive role, as shown in Fig. 2, the first installing plate 3 is fixed at the folding in 14 outside of the second installing plate, the two is closely pasted
It is combined, the output shaft of driving motor 15 passes through the first installing plate 3, the second installing plate 14 and coin separator disk 11 and rotating disk
12 connections so that rotating disk 12 rotates under the driving of driving motor 15, and specific connection mode is：At the center of rotating disk 12
A semicircle orifice identical with the output of driving motor 15 shaft diameter, shape is bored at place, and the output shaft of driving motor 15 is pacified through first
Loading board 3, the second installing plate 14 and coin separator disk 11 are connected with the semicircle orifice in rotating disk 12, are fastened with screw；
As depicted in figs. 1 and 2, the first installing plate 3 is equipped with opening 31,32 and second through hole 33 of first through hole, the first rail
Road 2 is fixed on 141 lower section of circular arc type groove to 3 inside of the first installing plate at opening 31 on the second installing plate 14, and the first rail
Angle between road 2 and horizontal plane is 20 °, and the outside of the first installing plate 3, and the sensing of close switch 5 are fixed on close to switch 5
Face is concordant with the first track 2；
As shown in Figure 2 and Figure 7, Coin over-turning device 4 is arranged at the opening 31 of the first installing plate 3, Coin over-turning device 4
Including turn-over motor 41, link 42, swing-around trajectory 43 and transparency glass plate 44, wherein turn-over motor 41 is servomotor, even
It connects frame 42 to be fixed on turn-over motor 41 and be bolted on the first installing plate 3, the motor shaft of turn-over motor 41 passes through connection
Frame 42 is connected with swing-around trajectory 43, and swing-around trajectory 43 is concordant with the first track 2, and two pieces of transparent glass are equipped on swing-around trajectory 43
Glass plate 44, the gap between two transparency glass plates 44 are more than the thickness of most thick coin, and turn-over motor 41 is closed-loop control, and control is turned over
Rotation angle is 180 ° during face；
As shown in Figure 1, Figure 2 with shown in Fig. 5, pressure coin device 6 is fixed on the first installing plate 3 and on the first installing plate 3
31 top of opening, i.e. 4 top of Coin over-turning device, pressure coin device 6 include pressure coin electromagnet 62 and banknote pressing plate 61, wherein pressure coin electricity
Magnet 62 is fixed on 3 top of the first installing plate, and is connected with banknote pressing plate 61 below, and 61 lower end profile of banknote pressing plate is circular arc
Shape, and the bore of the circular arc is more than the diameter of largest coins, the thickness of banknote pressing plate 61 is identical with the thickness of most thick coin, banknote pressing plate
61 are located between two transparency glass plates 44 on Coin over-turning device 4, it is most when pressing coin 62 no power of electromagnet for banknote pressing plate 61
The distance between lower end and swing-around trajectory 43 are more than the diameter of largest coins, to ensure that coin can pass freely through；
As shown in Figure 1, Figure 2 and Figure 4, the outside that coin device 7 is fixed on the first installing plate 3 is kept off, gear coin device 7 includes gear coin
Folded sheet 71, coin baffle 72, coin baffle track 73 and gear coin electromagnet 74, wherein gear coin folded sheet 71 is L shaped plate and rectangle
Plate is spliced, and gear coin electromagnet 74 is fixed on above the L shaped plate of gear coin folded sheet 71, and coin baffle track 73 is perpendicularly fixed at the
It on one installing plate 3, and is close to swing-around trajectory 43 and sets, coin baffle 72 is located on coin baffle track 73 and with keeping off coin electromagnet 74
Extension bar be bolted so that coin baffle 72 with the extension bar of gear coin electromagnet 74 stretches and on coin baffle track 73 it is sliding
Dynamic, coin baffle 72 is slid at swing-around trajectory 43 to block the coin slided from swing-around trajectory 43, gear coin folded sheet 71
Rectangular slab is bolted to the outside of the first installing plate 3；
As shown in Figure 1 and Figure 2, the second track 9 is fixed on first by swing-around trajectory 43 and setting concordant with swing-around trajectory 43
On installing plate 3, there is certain distance between 43 and second track 9 of swing-around trajectory, which is less than the diameter of minimum coin, ensures hard
Coin is slided on the second track 9 from swing-around trajectory 43 and not fallen out, and coin slot 95 is provided on the second track 9, first falls coin slot
91st, second falls coin slot the 92, the 3rd and falls coin slot 93 and the 4th to fall coin slot 94, wherein fall 95 position of coin slot for the second track 9 with
First installing plate 3 fix after the first installing plate 3 on first through hole 32 at, first falls coin slot 91, second falls coin slot the 92, the 3rd
Fall coin slot 93 and the 4th and fall 94 position of coin slot on the first installing plate 3 after the second track 9 and the fixation of the first installing plate 3
At second through hole 33, the correspondence position on coin slot 95 and four the first installing plates 3 fallen below coin slot is fallen is fixed with coin-accepting box
16th, first falls coin box 161, second falls coin box the 162, the 3rd and fall coin box 163 and the 4th to fall coin box 164 so that from falling coin slot 95,
One fall coin slot 91, second fall coin slot the 92, the 3rd fall coin slot 93 and the 4th fall the coin that is fallen on coin slot 94 can be by the first peace
Fixed coin-accepting box 16, first on the first installing plate 3, which are respectively fallen in, after 32 and second through hole 33 of first through hole in loading board 3 falls coin
Box 161, second, which fall coin box the 162, the 3rd and fall coin box 163 and the 4th, to fall in coin box 164；
As shown in Figure 1, Figure 2 with shown in Fig. 8, coin device for eliminating 8 is fixed on the outside of the first installing plate 3, coin device for eliminating 8
Folded sheet 81, coin rejecting baffle 82, coin, which are rejected, including coin rejects baffle track 83 and coin rejecting electromagnet 84, wherein
Coin is rejected electromagnet 84 and is fixed on above coin rejecting 81 side plate of folded sheet, and coin rejects 81 another side plate bolt of folded sheet
It is connected on the first installing plate 3, coin, which rejects baffle track 83 and is arranged on to reject 84 place coin of electromagnet with coin and reject, to be rolled over
It is fixedly connected on the side plate of 81 homonymy of lamination and with the first installing plate 3, coin rejects baffle 82 and is located at coin rejecting baffle track
It on 83 and rejects electromagnet 84 with coin to be flexibly connected so that coin is rejected baffle 82 and can be rejected on baffle track 83 in coin
It slides, when coin rejects 84 no power of electromagnet, coin rejects baffle 82 and is in extended position, and can extend into the first installing plate
In first through hole 32 on 3, first through hole 32 is located to fall at coin slot 95, therefore coin is rejected baffle 82 and made when being in extended position
The coin that slides on the second track 9 does not drop from falling coin slot 95, but reject baffle 82 along coin and continue to the second track 9
On four fall coin slot direction slip；
As shown in Figure 1, Figure 2 with shown in Fig. 8, image acquiring device 10 is fixed on 3 inside of the first installing plate, image acquiring device 10
Including camera 102, camera lens 103, light source 104 and mounting bracket 101, wherein camera 102, camera lens 103 and light source 104 is fixed on peace
It fills on stent 101, and ensures its center line on the same axis, and camera lens 103 faces Coin over-turning device 4 with light source 104
Transparency glass plate 44, ensure that swing-around trajectory 43 can be completely projected in camera lens 103, to ensure that can to obtain coin surface clear
Clear complete image, camera 102 are connected with camera lens 103, and camera 102 close to 5 control of switch with connecting, 101 side of mounting bracket
It is fixed on the first installing plate 3.
The arc-shaped slot 141 is parallel with the second track 9 and the first track 2.
It is described close to switch 5 be a Hall switch.
Second installing plate 14 is a folded sheet (angle folding be 80 °), the stent as coin conveying device 1.
The width and length of the load coin slot 121 are respectively greater than the diameter of any one coin, and less than two minimums
The sum of coin diameter.
The thickness of the rotating disk 12 is identical with most thin coin thickness, there are one in each load coin slot 121 of guarantee only
Coin.
There is certain distance between 43 and first track 2 of swing-around trajectory, which is less than the diameter of minimum coin, protects
Card coin, which is slided into from the first track 2 on swing-around trajectory 43, not to be fallen out.
The distance between 43 and second track 9 of the distance between 43 and first track 2 of swing-around trajectory and swing-around trajectory equal energy
Enough meet swing-around trajectory 43 can smoothly to rotate when rotating 180 ° under the motor shaft of turn-over motor 41 drives.
Described rejects electromagnet 84, turn-over motor close to switch 5, gear coin electromagnet 74, pressure coin electromagnet 62, coin
41st, camera lens 103 and light source 104 are connected respectively with control system by polygon control survey, while image is additionally provided in control system
Processing unit, for differentiating the quality of coin quality.
Coin rolls down to arc-shaped slot 141 on the second installing plate 14 from rotating disk 12, from arc-shaped slot 141 outflow after along
First installing plate 3 is rolled down on the first track 2, and when coin is after the sensitive surface close to switch 5, close switch 5 sends telecommunications
Number to control system pressure coin device 6 and image acquiring device 10 is controlled to act, wherein control system is with pressing coin device 6 and image to obtain
It is by line linkup transmit signal to take device 10, wherein when coin is after the sensitive surface close to switch 5, close switch 5 is sent out
The number of delivering letters controls pressure coin device 6 to control system so that pressure coin electromagnet 62, which is powered, drives banknote pressing plate 61 to move downward, and will be kept off
The coin that coin plate 72 blocks automatic centering under the action of its circular arc.
Driving motor 15 is direct current generator, and rotating speed can control, and rotating disk 12 rotates under the drive of driving motor 15, into
The coin for entering to carry coin slot 121 moves together with the rotation of rotating disk 12, and coin slot 121 and coin point are carried when rotating disk 12 moves to
During 111 overlapping positions of circular hole on separation disc 11, the coin in coin slot 121 is carried under the effect of gravity through the circle on coin separator disk 11
Hole 111 falls into the circular arc type groove 141 of the second installing plate 14 and scrolls down through, then along first after the outflow of arc-shaped slot 141
Installing plate 3 is rolled down on the first track 2, when coin by close to switch 5 sensitive surface after, close to switch 5 send electric signals to
Control system control pressure coin device 6 and image acquiring device 10 act, and wherein control system is filled with pressure coin device 6 and image acquisition
It is by line linkup transmit signal to put 10, wherein when coin is after the sensitive surface close to switch 5, close switch 5 sends electricity
Signal controls pressure coin device 6 to control system so that pressure coin electromagnet 62, which is powered, drives banknote pressing plate 61 to move downward, will be by gear coin
The coin that plate 72 blocks automatic centering under the action of its circular arc.
Gear coin device 7 is fixed on the first installing plate 3, and its angle of inclination is identical with the second installing plate 14, and coin is rejected
During 84 no power of electromagnet, coin rejects baffle 82 and is in extended position, blocks to be located on the second track 9 and falls coin slot 95, firmly
Coin rejects baffle 82 by coin and continues to roll along the second track 9, when coin device for eliminating 8 is controlled by control system so that coin
When rejecting the energization of electromagnet 84, coin rejects baffle 82 and bounces back in the case where coin rejects the drive of electromagnet 84, and coin is through the second track 9
On the coin slot 95 that falls fall under gravity into coin-accepting box 16.
Control system is fed back information to by signal close to switch 5, the control system control delay of camera 102 is taken pictures, and
Image processing unit shot image being transferred in control system carries out discrimination processing, obtains coin surface quality situation, root
It determines whether coin to be detected is qualified so as to control the action of other devices according to coin criterion is stained, while will detect in real time
Image and judging result deposit database, and the display unit that result information is transmitted in control system is shown.
The course of work of the present invention is illustrated with reference to Fig. 9：
Coin to be detected is packed into hopper 13 by step 1, starts driving motor 15, and driving motor 15 drives rotating disk 12 to revolve
Turn, moved together with the rotation of rotating disk 12 into the coin for carrying coin slot 121, when rotating disk 12 move to carry coin slot 121 with
During 111 overlapping positions of circular hole on coin separator disk 11, the coin in coin slot 121 is carried under the effect of gravity through coin separator disk 11
On circular hole 111 fall into the circular arc type groove 141 of the second installing plate 14, then from arc-shaped slot 141 outflow after along first installation
Plate 3 is rolled down on the first track 2, when coin by close to switch 5 sensitive surface after, wherein coin by the first track 2 it
Enter the swing-around trajectory 43 of Coin over-turning device 4 afterwards, continue to scroll down through between two transparency glass plates 44, encounter coin baffle
Stop after 72, send a signal to control system control pressure coin device 6 close to switching 5 so that pressure coin electromagnet 62, which is powered, drives pressure
Coin plate 61 moves downward, will be by the coin that coin baffle 72 blocks automatic centering under the action of its circular arc；Afterwards close to 5 hair of switch
The number of delivering letters is taken pictures to control system control camera 102, and shot image is transferred to image processing unit and is handled, and is obtained hard
Coin surface quality situation carries out subsequent action according to coin criterion is stained；
Step 2 if the one side that coin is taken pictures is off quality, need not carry out judgement of taking pictures to coin another side,
It need to directly reject, camera 102 has communicated information to image processing unit at this time, and image processing unit distinguishes that coin quality does not conform to
It is suitable, then by control system pressure coin electromagnet 62 is controlled to power off, while control gear coin electromagnet 74, coin rejecting electromagnet 84 same
Shi Tong electricity, the coin in swing-around trajectory 43 is rolled into the second track 9 under the effect of gravity to be continued to roll, when arrival is located at
On two tracks 9 when falling coin slot 95, baffle 82 is rejected due to coin at this time and is retracted, coin falls into coin-accepting box 16 through falling coin slot 95
In；
If coin surface quality is qualified, the motor shaft for controlling turn-over motor 41 by control system drives swing-around trajectory
43 180 ° of rotations, camera 102 take pictures and judge the quality on the other surface of coin by image processing unit again, if coin this
Face surface quality is unqualified, then performs program same as described above, and unqualified coin is fallen into the coin-accepting box 16 of unqualified coin；
If the coin surface quality is qualified, image processing unit will control pressure coin electromagnet 62 to break by control system
Electricity, gear coin electromagnet 74 are powered, and the coin in swing-around trajectory 43 is rolled into the second track 9 under the effect of gravity to be continued to roll
It is dynamic, when reach be located on the second track 9 when falling coin slot 95, be in stretching state, coin since coin at this time rejects baffle 82
Continue to roll along the second track 9 after coin rejects baffle 82, reach and set on the first installing plate 3 according to different coin diameters
There are width is different to fall in coin slot, fall the width of coin slot by ascending downward arrangement；The disme of a diameter of 19mm is by most
Narrow first falls directly into following first and falls coin box 161 when falling coin slot 91 (width 20mm)；5 jiaos of coins (diameter 20.5mm)
Falling coin slot 91 by foregoing most narrow first cannot fall down, and continue to scroll down through, and reach second and fall 92 (width of coin slot
For 21.5mm), it falls into following second and falls coin box 162；The disme of a diameter of 22.5mm falls coin by foregoing two
Slot cannot fall down, and reach the 3rd and fall coin slot 93 (width 24mm), fall into following the 3rd and fall coin box 163；1 yuan of coin (diameter
25mm) falling coin slot by foregoing three cannot fall down, and reach the 4th and fall coin slot 94 (width 28mm), fall into following
4th falls in coin box 164.
Claims (8)
1. one kind is stained coin and detects removal equipment automatically, it is characterised in that including coin conveying device (1), the first installing plate
(3), coin device (6), gear coin device (7), coin device for eliminating (8), Coin over-turning device (4) and image acquiring device are pressed
(10)；
Coin conveying device (1) includes rotating disk (12), hopper (13), coin separator disk (11), the second installing plate (14) and drives
Dynamic motor (15), wherein hopper (13) are riveted together with coin separator disk (11), and the outer ring of rotating disk (12) is provided with multiple loads
Coin slot (121) is provided with the circular hole (111) that diameter is of same size with carrying coin slot (121) opening, rotation on coin separator disk (11)
Disk (12) is movably connected in coin separator disk (11), and the position where circular hole (111) on coin separator disk (11) can make
Rotating disk (12) also can be by circular hole (111), firmly by carrying the coin of coin slot (121) when being rotated on coin separator disk (11)
Coin separator disk (11) is fixed on the second installing plate (14), and position corresponding with circular hole (111) is set on the second installing plate (14)
There is circular arc type groove (141), the width of circular arc type groove (141) is identical with the diameter of circular hole (111) on coin separator disk (11), and second
Installing plate (14) is folded sheet, and the side plate for being not provided with circular arc type groove (141) is used to support, and the first installing plate (3) is fixed on
At folding on the outside of second installing plate (14), the two fits closely together, and the output shaft of driving motor (15) is pacified through first
Loading board (3), the second installing plate (14) and coin separator disk (11) are connected with rotating disk (12) so that rotating disk (12) is in driving electricity
It is rotated under the driving of machine (15)；
First installing plate (3) is equipped with opening (31), first through hole (32) and the second through hole (33), and the first track (2) is fixed on
On the inside of circular arc type groove (141) lower section to the first installing plate (3) at opening (31) on second installing plate (14), and the first track
(2) angle between horizontal plane is 20 °, and the outside of the first installing plate (3), and close switch (5) are fixed on close to switch (5)
Sensitive surface it is concordant with the first track (2)；
Coin over-turning device (4) is arranged at the opening (31) of the first installing plate (3), and Coin over-turning device (4) includes turn-over electricity
Machine (41), link (42), swing-around trajectory (43) and transparency glass plate (44), wherein turn-over motor (41) are servomotor, even
It connects frame (42) to be fixed on turn-over motor (41) and be bolted on the first installing plate (3), the motor shaft of turn-over motor (41)
It is connected through link (42) with swing-around trajectory (43), and swing-around trajectory (43) is concordant with the first track (2), swing-around trajectory (43)
On two pieces of transparency glass plates (44) are installed, the gap between two transparency glass plates (44) is more than the thickness of most thick coin, turn-over
Motor (41) is closed-loop control, and rotation angle is 180 ° when controlling turn-over；
Pressure coin device (6) is fixed on the first installing plate (3) and above the opening (31) on the first installing plate (3), i.e., hard
Above coin turn-over rig (4), pressure coin device (6) includes pressure coin electromagnet (62) and banknote pressing plate (61), wherein pressure coin electromagnet
(62) it is fixed on above the first installing plate (3), and is connected with banknote pressing plate (61) below, banknote pressing plate (61) lower end profile is
It is arc-shaped, and the bore of the circular arc is more than the diameter of largest coins, the thickness of banknote pressing plate (61) is identical with the thickness of most thick coin,
Banknote pressing plate (61) is located between two transparency glass plates (44) on Coin over-turning device (4), and banknote pressing plate (61) is in pressure coin electromagnet
(62) during no power the distance between its bottom and swing-around trajectory (43) be more than largest coins diameter, with ensure coin can from
By passing through；
Gear coin device (7) is fixed on the outside of the first installing plate (3), and gear coin device (7) includes gear coin folded sheet (71), coin baffle
(72), coin baffle track (73) and gear coin electromagnet (74), wherein gear coin folded sheet (71) for L shaped plate and rectangular slab splicing and
Into gear coin electromagnet (74) is fixed on above the L shaped plate of gear coin folded sheet (71), and coin baffle track (73) is perpendicularly fixed at first
It on installing plate (3), and is close to swing-around trajectory (43) and sets while align with swing-around trajectory (43), coin baffle (72) is located at gear coin
It is bolted on plate track (73) and with the extension bar of gear coin electromagnet (74) so that coin baffle (72) is with gear coin electromagnet
(74) extension bar stretches and is slided on coin baffle track (73), coin baffle (72) be slid at swing-around trajectory (43) so as to
The coin slided from swing-around trajectory (43) is blocked, the rectangular slab of gear coin folded sheet (71) is bolted to the first installing plate (3)
Outside；
Second track (9) is fixed on by swing-around trajectory (43) and setting concordant with swing-around trajectory (43) on the first installing plate (3),
There is certain distance between swing-around trajectory (43) and the second track (9), which is less than the diameter of minimum coin, ensures coin from rotation
It slides on the second track (9) and does not fall out in transition road (43), coin slot (95) is provided on the second track (9), first falls coin
Slot (91), second fall coin slot (92), the 3rd fall coin slot (93) and the 4th and fall coin slot (94), wherein falling coin slot (95) position and being
At the first through hole (32) on the first installing plate (3) after second track (9) and the first installing plate (3) are fixed, first falls coin slot
(91), second falls coin slot (92), the 3rd falls coin slot (93) and the 4th and fall coin slot (94) position for the second track (9) and first
At the second through hole (33) on the first installing plate (3) after installing plate (3) is fixed, falling coin slot (95) and four fall coin slot lower section
The first installing plate (3) on correspondence position be fixed with coin-accepting box (16), first fall coin box (161), second fall coin box (162),
3rd falls coin box (163) and the 4th falls coin box (164) so that from falling coin slot (95), first fall coin slot (91), second fall coin slot
(92), the 3rd fall coin slot (93) and the 4th fall the coin fallen on coin slot (94) can be by first on the first installing plate (3)
Fixed coin-accepting box (16), first on the first installing plate (3) are respectively fallen in after through hole (32) and the second through hole (33) and falls coin box
(161), second falls coin box (162), the 3rd falls coin box (163) and the 4th and fall in coin box (164)；
Coin device for eliminating (8) is fixed on the outside of the first installing plate (3), and coin device for eliminating (8) includes coin and rejects folding
Plate (81), coin reject baffle (82), coin rejects baffle track (83) and coin rejects electromagnet (84), and wherein coin is rejected
Electromagnet (84) is fixed on coin and rejects above folded sheet (81) side plate, and coin is rejected another side plate bolt of folded sheet (81) and connected
It is connected on the first installing plate (3), coin rejecting baffle track (83) is arranged on to be picked with coin where coin rejecting electromagnet (84)
Except being fixedly connected on the side plate of folded sheet (81) homonymy with the first installing plate (3), coin rejects baffle (82) and is located at coin rejecting
It on baffle track (83) and rejects electromagnet (84) with coin to be flexibly connected so that coin is rejected baffle (82) and can be picked in coin
Except being slided on baffle track (83), when coin rejects electromagnet (84) no power, coin rejects baffle (82) and is in extended position,
And can extend into the first through hole (32) on the first installing plate (3), first through hole (32) is located to fall at coin slot (95), therefore hard
Coin rejects baffle (82) and the coin slided on the second track (9) is caused when being in extended position not drop from falling coin slot (95), and
It is that four continued along coin rejecting baffle (82) on the second track (9) fall the slip of coin slot direction；
Image acquiring device (10) is fixed on the inside of the first installing plate (3), and image acquiring device (10) includes camera (102), mirror
Head (103), light source (104) and mounting bracket (101), wherein camera (102), camera lens (103) and light source (104) are fixed on installation
On stent (101), and ensure its center line on the same axis, and camera lens (103) faces Coin over-turning dress with light source (104)
The transparency glass plate (44) of (4) is put, ensures that swing-around trajectory (43) can be projected to completely in camera lens (103), to ensure to obtain
The image of coin surface complete display is taken, camera (102) is connected with camera lens (103), and camera (102) close to switch (5) with controlling
Connection, mounting bracket (101) side is fixed on the first installing plate (3).
2. one kind as described in claim 1 is stained coin and detects removal equipment automatically, it is characterised in that the arc-shaped slot
(141) it is parallel with the second track (9) and the first track (2).
3. one kind as described in claim 1 is stained coin and detects removal equipment automatically, it is characterised in that second installation
Plate (14) is a folded sheet (angle folding be 80 ° of angles), the stent as coin conveying device (1).
4. one kind as described in claim 1 is stained coin and detects removal equipment automatically, it is characterised in that the load coin slot
(121) width and length is all higher than the diameter of any one coin, and is less than the sum of two minimum coin diameters.
5. one kind as described in claim 1 is stained coin and detects removal equipment automatically, it is characterised in that the rotating disk
(12) thickness is identical with most thin coin thickness, to ensure that only there are one coins in each load coin slot (121).
6. one kind as described in claim 1 is stained coin and detects removal equipment automatically, it is characterised in that the swing-around trajectory
(43) there is certain distance between the first track (2), which is less than the diameter of minimum coin, ensures coin from the first track
(2) slide on swing-around trajectory (43) and do not fall out on.
7. one kind as described in claim 1 is stained coin and detects removal equipment automatically, it is characterised in that described close to switch
(5), keep off coin electromagnet (74), pressure coin electromagnet (62), coin reject electromagnet (84), turn-over motor (41), camera lens (103) and
Light source (104) is connected respectively with control system by polygon control survey, while image processing unit is additionally provided in control system, is used
In the quality for differentiating coin quality.
8. the present invention provide it is a kind of using one kind described in claim 1 be stained coin detect automatically removal equipment be stained it is hard
The detection method that coin detects automatically, is as follows：
Step 1：Coin to be detected is packed into hopper (13), starts driving motor (15), driving motor (15) drives rotating disk
(12) rotate, moved together with the rotation of rotating disk (12) into the coin for carrying coin slot (121), when rotating disk (12) moves to
When carrying circular hole (111) overlapping positions on coin slot (121) and coin separator disk (11), the coin in coin slot (121) is carried in gravity
It is fallen under effect through the circular hole (111) on coin separator disk (11) in the circular arc type groove (141) of the second installing plate (14), then from circle
Arc groove (141) is rolled down to along the first installing plate (3) on the first track (2) after skidding off, when coin passes through close to switch (5)
After sensitive surface, and coin is entering back into the swing-around trajectory (43) of Coin over-turning device (4) after the first track (2), two
Continue to scroll down through between a transparency glass plate (44), encounter coin baffle (72) and stop afterwards, control is sent a signal to close to switch (5)
System control pressure coin device (6) processed so that pressure coin electromagnet (62), which is powered, drives banknote pressing plate (61) to move downward, will be by coin baffle
(72) coin blocked automatic centering under the action of its circular arc；Afterwards control system control is sent a signal to close to switch (5)
Camera (102) is taken pictures, and shot image is transferred to image processing unit and is handled, and obtains coin surface quality situation, root
Subsequent action is carried out according to coin criterion is stained；
Step 2：If the one side that coin is taken pictures is off quality, judgement of taking pictures need not be carried out to coin another side, is needed straight
Rejecting is connect, information has been sent to the image processing unit in control system by camera (102) by control system at this time, at image
It manages unit and distinguishes that coin quality is unqualified, then by control system pressure coin electromagnet (62) is controlled to power off, while control gear coin electricity
Magnet (74), coin reject electromagnet (84) and are powered simultaneously, and the coin in swing-around trajectory (43) is scrolled under the effect of gravity
Enter the second track (9) to continue to roll, when arrival be located on the second track (9) when falling coin slot (95), since coin at this time is rejected
Baffle (82) is retracted, and coin is fallen into through falling coin slot (95) in coin-accepting box (16)；
If coin surface quality is qualified, the motor shaft for controlling turn-over motor (41) by control system drives swing-around trajectory
(43) 180 ° are rotated, camera (102) takes pictures and passes through control system and send image processing unit to again judges another surface of coin
Quality, if this face surface quality of coin is unqualified, perform program same as described above, unqualified coin falls into unqualified
In the coin-accepting box (16) of coin；
If the coin surface quality is qualified, image processing unit will control pressure coin electromagnet (62) disconnected by control system
Electricity, coin reject electromagnet (84) and power off, keep off coin electromagnet (74) energization, and the coin in swing-around trajectory (43) is in gravity
Under be rolled into the second track (9) and continue to roll, when arrival be located on the second track (9) when falling coin slot (95), due at this time
Coin rejects baffle (82) and is in stretching state, and coin continues to roll along the second track (9) after coin rejects baffle (82),
Reach on the first installing plate (3) according to different coin diameters be equipped with width it is different fall coin slot, fall the width of coin slot by by
It is small to be arranged downwards to big；The disme of a diameter of 19mm falls direct during coin slot (91) (width 20mm) by most narrow first
It falls into following first and falls coin box (161)；5 jiaos of coins (diameter 20.5mm) fall coin slot by foregoing most narrow first
(91) it cannot fall down, continue to scroll down through, reach second and fall coin slot (92) (width 21.5mm), fall into following second and fall
Coin box (162)；The disme of a diameter of 22.5mm falls coin slot by foregoing two to fall down, and reach the 3rd and fall
Coin slot (93) (width 24mm) falls into following the 3rd and falls coin box (163)；1 yuan of coin (diameter 25mm) is by foregoing
Three fall coin slot and cannot fall down, and reach the 4th and fall coin slot (94) (width 28mm), fall into following the 4th and fall coin box (164)
In.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810150689.4A CN108053544B (en) | 2018-02-13 | 2018-02-13 | Automatic detection and rejection equipment and detection method for stained coins |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810150689.4A CN108053544B (en) | 2018-02-13 | 2018-02-13 | Automatic detection and rejection equipment and detection method for stained coins |
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| CN108053544B CN108053544B (en) | 2023-09-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759346A (en) * | 2019-03-26 | 2019-05-17 | 吉林大学 | Damaged coin device and detection method are rejected in a kind of novel detection |
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| CN108053544B (en) | 2023-09-29 |
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