CN206095976U - Card appearance detection device - Google Patents
Card appearance detection device Download PDFInfo
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- CN206095976U CN206095976U CN201620870795.6U CN201620870795U CN206095976U CN 206095976 U CN206095976 U CN 206095976U CN 201620870795 U CN201620870795 U CN 201620870795U CN 206095976 U CN206095976 U CN 206095976U
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- light source
- guide plate
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- 238000001514 detection method Methods 0.000 title claims abstract description 26
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- 238000012360 testing method Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract 3
- 238000003475 lamination Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 5
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- 238000004458 analytical method Methods 0.000 description 2
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- 230000003287 optical effect Effects 0.000 description 2
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- 238000003854 Surface Print Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 229910052736 halogen Inorganic materials 0.000 description 1
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- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The utility model discloses a card appearance detection device, including conveying mechanism, detection mechanism and data process system, conveying mechanism includes conveyer belt and motor, and the motor provides kinetic energy for the conveyer belt, detection mechanism includes planar mirror, light guide plate, light source, convex lens, sensor and camera, planar mirror sets up in one side of conveyer belt, and the light guide plate setting is just inclined downwards towards planar mirror at the opposite side of conveyer belt, the light source sets up in the upper end of light guide plate, and the convex lens setting is at the lower extreme of light guide plate, and light source emission's light passes directive planar mirror behind the convex lens downwards along the light guide plate slope, forms the reverberation, on the detection site of reverberation directive conveyer belt, sensor settings is in the top of detecting the site, camera setting is in the light guide plate below, and its camera lens is towards the detection site of conveyer belt, data process system is used for receiving sensor's signal and control camera. This card appearance detection device area occupied is less, false positive rate low, and the process is simple.
Description
Technical field
This utility model is related to appearance delection device technical field, more particularly to a kind of card appearance delection device.
Background technology
Card appearance delection device is to examine an important device in card apparatus, is commonly used to whether the outer surface to card is deposited
Detected in damage.Existing card appearance delection device, the general appearance information that card is obtained using line-scan digital camera.Card
Line source and line-scan digital camera are provided with above conveyer belt, line source is arranged in the same horizontal line with line-scan digital camera, and is separated by
A certain distance is installed.Using the card detection means of line-scan digital camera, the stability requirement to conveyer belt is higher, otherwise exists
During line-scan digital camera is taken pictures, when shock conditions occurs in card, the two dimensional image that line-scan digital camera is combined into just occurs folding line, makes
Into anamorphose, system can be identified as substandard product qualified products, cause yields to reduce.
In addition, the card appearance delection device of this structure, it is impossible to detect the damage of some golden bottoms and silver-colored bottom card face,
And when imaging, the print content on card surface can be imaged out together, cause to also need to a card body when detection
Defect damage separate from the print content on card surface, and separation process is more complicated, and often less accurate.
Utility model content
The deficiencies in the prior art are overcome in order to keep away, the purpose of this utility model is to provide a kind of card outward appearance detection dress
Put, the card appearance delection device area occupied is less, False Rate is low, support the card face at golden bottom and silver-colored bottom to damage, various
The detection of the lamination wounds such as lamination watermark, lamination gas speckle, its imaging can directly shield the print content above card, directly table
The damage defect direct imaging in face is out, it is not necessary to goes to separate damage defect and card surface printing content, detects simpler standard
Really.
The purpose of this utility model employs the following technical solutions realization：
A kind of card appearance delection device, including conveying mechanism, testing agency and data handling system；The conveying mechanism
Including conveyer belt and motor, the motor provides kinetic energy for the conveyer belt；The testing agency includes plane mirror, leaded light
Plate, light source, convex lenss, sensor and camera；The plane mirror is arranged on the side of the conveyer belt, and the light guide plate sets
The other side in the conveyer belt is put, and diagonally downward towards the plane mirror；The light source is arranged on the leaded light
The upper end of plate, the convex lenss are arranged on the lower end of the light guide plate, and the light of the light source transmitting is tilted towards along the light guide plate
Under through after the convex lenss plane mirror described in directive, formed reflected light；The inspection of conveyer belt described in the reflected light directive
On location point, the sensor is arranged on the top of the detection site；The camera is arranged on the lower section of the light guide plate, its
Detection site of the camera lens towards the conveyer belt；
The signal output part of the sensor is connected with the first signal input part of the data handling system；The data
First signal output part of processing system is connected with the signal input part of the camera；The signal output part of the camera with it is described
The secondary signal input connection of data handling system.
Preferably, the light source includes the first light source and secondary light source, and first light source is LED point light source, described the
Two light sources are LED annular light sources；First light source is arranged on the focal point of the convex lenss, and the secondary light source is arranged on institute
State between the first light source and the convex lenss, and first light source is just relative with the center of the secondary light source.
Preferably, also including light source pulverizer plate；The light source pulverizer plate is arranged on the secondary light source and the convex lenss
Between；After the light of first light source and secondary light source transmitting sequentially passes through the light source pulverizer plate and the convex lenss,
Plane mirror described in directive.
Light source pulverizer plate generally obscures opaque plastic plate, and light can be passed through and form homodisperse state.
Preferably, the convex lenss are Fresnel Lenses.
Preferably, also including the first bracing frame, first bracing frame is arranged on the side of the conveyer belt, and with it is described
Plane mirror is set relatively；It is fixed on the upside of the light guide plate on first bracing frame；The camera is arranged on described
On first bracing frame, and positioned at the lower section of the light guide plate.
Preferably, also including angle demodulator；The angle demodulator is arranged on the light guide plate, and with the light source
It is flexibly connected；The secondary signal outfan of the data handling system is connected with the signal input part of the angle demodulator.
Preferably, also including the first light source drive and secondary light source driver；First light source drive with it is described
First light source is electrically connected with, and the secondary light source driver is electrically connected with the secondary light source；The data handling system
3rd signal output part is connected with the signal input part of first light source drive, its 4th signal output part and described second
The signal input part connection of light source drive.
Preferably, also including the second bracing frame；Second bracing frame is arranged on the side of the conveyer belt, and with it is described
Light guide plate is set relatively；The plane mirror is arranged on second bracing frame.
Preferably, second bracing frame includes left plate and right plate, and the left plate is provided with anti-with the plane
Penetrate the left groove of the left side matching of mirror；The right plate is provided with the right groove matched with the right side of the plane mirror；Institute
The left groove is inserted in the left side for stating plane mirror, and the right groove is inserted on the right side of which.
Preferably, the camera is area array cameras.
Compared to existing technology, the beneficial effects of the utility model are：
(1) card appearance delection device provided by the utility model, is that a kind of principle of reflection of utilization light is designed
Reflective detection means, can be directed to each fabrication producer standard detection differentiation is carried out to card, it is qualified in order to sort out
Product and substandard product.Light source and camera are arranged on the side of conveyer belt, and light source and camera are set, such structure up and down
The installing space of equipment is advantageously reduced, is conducive to equipment to miniaturization.And traditional card appearance delection device, its light
Source and camera are arranged on the top of conveyer belt, and are separated by certain horizontal range between the two, and such structure causes equipment
Length is longer, and volume is larger.Card appearance delection device i.e. provided by the utility model takes the structure being transversely mounted, and changes
The longitudinally mounted mode of traditional card appearance delection device, is conducive to shortening device length, and part is few, equipment more compact
Change, run more stable, installation and debugging are convenient, beneficial to using and transport, it is adaptable to the outward appearance detection of most of cards.
(2) card appearance delection device provided by the utility model, light source include the first light source and secondary light source.Its
In, the first light source is point source, and secondary light source is the annular light source that there is a circular hole centre.First light source is arranged on secondary light source
Rear center, and just installed in the focal point of convex lenss, the light of the first light source and secondary light source is through convex lenss
Afterwards, directional light can be become, divergence of beam is more uniform, directional light can uniformly shine card after the reflection of plane mirror
Detection stability is farthest improved on surface, brightness uniformity.In addition, the first light source and secondary light source respectively from different light
Source drive connects, i.e. their brightness individually can be adjusted, by the strong and weak Different matchings combination of both brightness, can be with
The lamination wound of various card faces is detected, range of application is wider, it is not necessary to many set cameras are installed and light source just can be to greatest extent
Detect all kinds of surface damage.And for most card, card table can be shielded when they are imaged
The print content in face, a display layer such as weigh wounded at the defect.Therefore, needing not move through too many complex calculation in analysis just can be by
The bad card for having the surface damages such as lamination watermark, gas speckle is found out.
(3) card appearance delection device provided by the utility model, is provided with light source atomization in front of secondary light source
Plate, light source pulverizer plate can make the lighted effect that can be made full use of and uniformly spread, realize high brightness and high evenness.
(4) card appearance delection device provided by the utility model, convex lenss adopt Fresnel Lenses, with common convex lens
Mirror is compared, the low cost of Fresnel Lenses, and occupancy installing space is little, and weight is little.
(5) card appearance delection device provided by the utility model, light source are configured with light source drive, light source drive
The signal of signal processing system is received, the energization or power-off of light source is controlled, and is adjusted light-source brightness.That is the card outward appearance detection is filled
When putting work, light source is stroboscopic, compares traditional card appearance delection device of light source Chang Liang, can greatly reduce energy consumption.This
Outward, light source could be arranged to LED light source, and LED light source is longer relative to the conventional halogen light source life-span.
(6) card appearance delection device provided by the utility model, camera is area array cameras.Area array cameras can be simultaneously
Receive the complete light image of a width, two-dimensional image information can be obtained, measurement image is directly perceived.Area array cameras are avoided that because of conveyer belt
Shake shakes and causes to shoot the bad phenomenon of photograph, so as to reduce False Rate.Area array cameras are configured with, the card is expanded
The suitable environment of appearance delection device.
Description of the drawings
The structural representation of the card appearance delection device that Fig. 1 is provided by this utility model embodiment；
The schematic diagram of the function of the card appearance delection device that Fig. 2 is provided by this utility model embodiment；
Reference：1st, light source pulverizer plate；2nd, camera；3rd, the first bracing frame；4th, plane mirror；5th, the second bracing frame；
6th, convex lenss；7th, conveyer belt；8th, the first light source；9th, secondary light source；10th, camera perspective direction；11st, card；12nd, sensor；13、
Light guide plate.
Accompanying drawing herein is simultaneously listed description in and constitutes a part for description, shows and meets enforcement of the present utility model
Example, and be used for explaining principle of the present utility model together with description.
Specific embodiment
Below, with reference to accompanying drawing and specific embodiment, this utility model is described further：
As shown in figure 1, a kind of card appearance delection device, including conveying mechanism, testing agency and data handling system；Institute
Stating conveying mechanism includes conveyer belt 7 and motor, and the motor is that conveyer belt 7 provides kinetic energy；The testing agency includes that plane is anti-
Penetrate mirror 4, light guide plate 13, light source, convex lenss 6, sensor 12 and camera 2；Plane mirror 4 is arranged on the side of conveyer belt 7, leads
Tabula rasa 13 is arranged on the other side of conveyer belt 7, and diagonally downward towards plane mirror 4；The light source is arranged on light guide plate
13 upside, convex lenss 6 are arranged on the downside of light guide plate 13, and the light that the light source is launched passes through convex diagonally downward along light guide plate 13
Directive plane mirror 4 after lens 6, forms reflected light；In the detection site of the reflected light directive conveyer belt 7, sensor 12
It is arranged on the top of the detection site；Camera 2 is arranged on the lower section of light guide plate 13, detecting position of its camera lens towards conveyer belt 7
Point；The signal output part of sensor 12 is connected with the first signal input part of the data handling system；The data processing system
First signal output part of system is connected with the signal input part of camera 2；The signal output part of camera 2 and the data handling system
Secondary signal input connection.
The card appearance delection device also includes a base, the conveying mechanism, testing agency and data handling system
It is fixedly mounted on the base by aluminium section bar.
Below, the set-up mode of the light source is further described.The light source includes the first light source 8 and secondary light source
9, the first light source 8 is LED point light source, usually spheroidal；Secondary light source 9 is LED annular light sources, the i.e. centre of secondary light source 9
It is formed with hollow circular hole.First light source 8 is arranged on the focal point of convex lenss 6, and secondary light source 9 is arranged on the first light source 8 and convex lens
Between mirror 6, and the hollow circular hole positive pair of the first light source 8 and secondary light source 9.First light source 8 of point-like and annular second
The mode that light source 9 is arranged before and after taking so so that the light for sending is more uniform, it is to avoid in the middle of or surrounding brightness local collect
In phenomenon.The light of the first light source 8 and secondary light source 9 can become directional light after convex lenss 6, and divergence of beam is more equal
Even, directional light can uniformly shine card face after the reflection of plane mirror 4, and brightness uniformity is farthest improved
Detection stability.In addition, also including light source pulverizer plate 1；Light source pulverizer plate 1 is arranged between secondary light source 9 and convex lenss 6；The
After the light of one light source 8 and the transmitting of secondary light source 9 sequentially passes through light source pulverizer plate 1 and convex lenss 6, directive plane mirror 4, light source
Pulverizer plate 1 can make luminous energy make full use of and uniformly spread, and realize the effect of high brightness and high evenness.And convex lenss 6 are preferably
Fresnel Lenses, compared with common convex lenss, the low cost of Fresnel Lenses, occupancy installing space are little, and weight is little.
In order that whole light-source structure is compacter, a light source mounting block frame can be set, light source pulverizer plate 1 serves as
The anterior wall of the light source mounting block frame, and secondary light source 9 and the first light source 8 are successively set on the rear of light source pulverizer plate 1,
And be located in the light source mounting block frame, such setting miniaturization, configuration are attractive in appearance.In addition, the first light source 8 and secondary light source 9
The brightness for dividing individually can be adjusted, and by the strong and weak Different matchings combination of both brightness, can detect various card faces
Lamination wound, range of application is wider, it is not necessary to many set cameras are installed and light source just can detect to greatest extent it is all kinds of
Surface damage.And for most card, the print content of card face can be shielded when they are imaged, it is only aobvious
Show the defects such as lamination wound.Therefore, needing not move through too many complex calculation in analysis just can will have lamination watermark, gas speckle etc.
The bad card of surface damage is found out.
Below, the set-up mode of the card appearance delection device is further described.
As shown in figure 1, also including the first bracing frame 3, the first bracing frame 3 is arranged on the side of conveyer belt 7, and anti-with plane
Penetrate mirror 4 to set relatively；The upside of light guide plate 13 is fixed on the first bracing frame 3；Camera 2 is arranged on the first bracing frame 3, and position
In the lower section of light guide plate 13.Such set-up mode compact conformation, good stability.
In addition, in order that light source transmitting light projection it is more accurate, angle demodulator can also be included；The angle is adjusted
Section device is arranged on light guide plate 13, and is connected with the light source active；The secondary signal outfan of the data handling system with
The signal input part connection of the angle demodulator.The angle of light source can be adjusted by angle demodulator so that light source is launched
Light be preferably radiated on the card of conveyer belt 7.
Furthermore, in order to realize the power on/off and brightness adjustment automatization of light source, also including the first light source drive and
Two light source drives；First light source drive is electrically connected with the first light source 8, the secondary light source driver and the second light
Source 9 is electrically connected with；3rd signal output part of the data handling system and the signal input part of first light source drive
Connection, its 4th signal output part are connected with the signal input part of the secondary light source driver.First light source drive
The signal of signal processing system, the energization or power-off of control light source are received with secondary light source driver, and adjust the brightness of light source,
Intelligent level is high.
Below, the mounting means of plane mirror 4 is further described.As shown in figure 1, also including the second bracing frame 5；
Second bracing frame 5 is arranged on the side of conveyer belt 7, and relative with light guide plate 13 and set；Plane mirror 4 is arranged on the second support
On frame 5.More specifically, the second bracing frame 5 includes left plate and right plate, the left plate is provided with and plane mirror 4
The left groove of left side matching；The right plate is provided with the right groove matched with the right side of plane mirror 4；Plane mirror 4
Left side insert the left groove, the right groove is inserted on the right side of which.The simple structure of the second bracing frame 5, beneficial to plane reflection
The installation of mirror 4.
Below, the set-up mode of camera 2 and sensor 12 is further described.Camera 2 could be arranged to area array cameras, face
Array camera is avoided that the phenomenon for causing shooting photograph bad because of the shake of conveyer belt 7 or vibrations, so as to reduce False Rate.Sensing
Device 12 could be arranged to Fibre Optical Sensor, and Fibre Optical Sensor is quick on the draw.
The operation principle of the card appearance delection device provided by this utility model embodiment is as described below：
When card appearance delection device is operated, card 11 is moved forward along the conveying direction of conveyer belt 7, works as card
When in 11 detection sites for moving to conveyer belt 7, i.e., when the tail end of card 11 passes through under sensor 12, sensor 12
Produce signal and signal processing system is given signal transmission；After signal processing system receives the signal of sensor 12, on the one hand give
The transmission of camera 2 shoots signal, and camera 2 starts to take pictures；On the other hand angle demodulator, the first light source drive and secondary light source are given
Driver transmission signal, angle demodulator carry out angle adjustment to light source, and the first light source drive and secondary light source driver
Power to respectively the first light source 8 and secondary light source 9, make them light, and adjust brightness.
As shown in Fig. 2 the light of light source transmitting injects plane mirror 4 along radiation direction, by plane mirror 4
Reflection, light are reflexed on the surface of card 11.Camera 2 is drawn along the surface that camera perspective direction 10 photographs card 11
Face, when data handling system arrange photo opporunity then, camera 2 terminate take pictures, the first light source 8, secondary light source 9 and camera 2
Close.Camera 2 sends signal processing system to shooting picture synthesising picture, and signal processing system carries out data pair to picture
Than after, the quality of 11 outward appearance of card is judged, whole detection is completed.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection of this utility model claim
Within the scope of.
Claims (10)
1. a kind of card appearance delection device, it is characterised in that including conveying mechanism, testing agency and data handling system；
The conveying mechanism includes conveyer belt and motor, and the motor provides kinetic energy for the conveyer belt；
The testing agency includes plane mirror, light guide plate, light source, convex lenss, sensor and camera；The plane mirror
The side of the conveyer belt is arranged on, the light guide plate is arranged on the other side of the conveyer belt, and diagonally downward towards institute
State plane mirror；The light source is arranged on the upper end of the light guide plate, and the convex lenss are arranged on the lower end of the light guide plate,
The light of the light source transmitting forms anti-along the light guide plate diagonally downward through plane mirror described in directive after the convex lenss
Penetrate light；In the detection site of conveyer belt described in the reflected light directive, the sensor is arranged on the top of the detection site；
The camera is arranged on the lower section of the light guide plate, detection site of its camera lens towards the conveyer belt；
The signal output part of the sensor is connected with the first signal input part of the data handling system；The data processing
First signal output part of system is connected with the signal input part of the camera；The signal output part of the camera and the data
The secondary signal input connection of processing system.
2. card appearance delection device according to claim 1, it is characterised in that the light source includes the first light source and
Two light sources, first light source are LED point light source, and the secondary light source is LED annular light sources；First light source is arranged on institute
The focal point of convex lenss is stated, the secondary light source is arranged between first light source and the convex lenss, and first light
Source is just relative with the center of the secondary light source.
3. card appearance delection device according to claim 2, it is characterised in that also including light source pulverizer plate；The light
Source pulverizer plate is arranged between the secondary light source and the convex lenss；First light source and the light of secondary light source transmitting
After sequentially passing through the light source pulverizer plate and the convex lenss, plane mirror described in directive.
4. card appearance delection device according to claim 1, it is characterised in that the convex lenss are Fresnel Lenses.
5. card appearance delection device according to claim 1, it is characterised in that also including the first bracing frame, described
One bracing frame is arranged on the side of the conveyer belt, and relative with the plane mirror and set；The upside of the light guide plate is solid
It is scheduled on first bracing frame；The camera is arranged on first bracing frame, and positioned at the lower section of the light guide plate.
6. card appearance delection device according to claim 1, it is characterised in that also including angle demodulator；The angle
Degree actuator is arranged on the light guide plate, and is connected with the light source active；The secondary signal of the data handling system is defeated
Go out end to be connected with the signal input part of the angle demodulator.
7. card appearance delection device according to claim 2, it is characterised in that also including the first light source drive and
Two light source drives；First light source drive is electrically connected with first light source, the secondary light source driver and institute
State secondary light source electric connection；
3rd signal output part of the data handling system is connected with the signal input part of first light source drive, and which
Four signal output parts are connected with the signal input part of the secondary light source driver.
8. card appearance delection device according to claim 1, it is characterised in that also including the second bracing frame；Described
Two bracing frames are arranged on the side of the conveyer belt, and relative with the light guide plate and set；The plane mirror is arranged on institute
State on the second bracing frame.
9. card appearance delection device according to claim 8, it is characterised in that second bracing frame includes left plate
And right plate, the left plate is provided with the left groove matched with the left side of the plane mirror；The right plate is provided with
The right groove matched with the right side of the plane mirror；The left groove is inserted in the left side of the plane mirror, on the right side of which
Insert the right groove.
10. card appearance delection device according to claim 1, it is characterised in that the camera is area array cameras.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620870795.6U CN206095976U (en) | 2016-08-11 | 2016-08-11 | Card appearance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620870795.6U CN206095976U (en) | 2016-08-11 | 2016-08-11 | Card appearance detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206095976U true CN206095976U (en) | 2017-04-12 |
Family
ID=58467111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620870795.6U Expired - Fee Related CN206095976U (en) | 2016-08-11 | 2016-08-11 | Card appearance detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206095976U (en) |
-
2016
- 2016-08-11 CN CN201620870795.6U patent/CN206095976U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 |