CN203148862U - Glass bottle defect detecting device and image-separating device - Google Patents
Glass bottle defect detecting device and image-separating device Download PDFInfo
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- CN203148862U CN203148862U CN 201320168467 CN201320168467U CN203148862U CN 203148862 U CN203148862 U CN 203148862U CN 201320168467 CN201320168467 CN 201320168467 CN 201320168467 U CN201320168467 U CN 201320168467U CN 203148862 U CN203148862 U CN 203148862U
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Abstract
The utility model discloses a glass bottle defect detecting device and an image-separating device. The glass bottle defect detecting device comprises a surface light source, a polarizer, a diaphragm, the image-separating device, a lens and a camera, wherein the polarizer is arranged in the front of the surface light source; the diaphragm is arranged in the front of the polarizer; a to-be-detected glass bottle is positioned between the polarizer and the diaphragm; and the image-separating device, the lens and the camera are coaxially arranged in the front of the diaphragm sequentially from near to far. The image-separating device comprises a fresnel biprism, wherein two obliquely intersectant incident planes of the fresnel biprism face to the diaphragm and are arranged corresponding to a to-be-detected part; intersectant prism ridges of the two incident planes are vertical; a polarizing film is plated on a left part or a right part of an exit plane of the fresnel biprism; and the polarizing direction of the polarizing film is vertical to the polarizing direction of the polarizer. By utilizing the glass bottle defect detecting device only based on the camera, detection on conventional and stress-uneven detects of the glass bottle can be realized, and measurement on boundary dimension of the glass bottle can be realized. The glass bottle defect detecting device is low in detection cost, small in occupied space, high in accuracy and low in false detecting rate.
Description
Technical field
The utility model relates to the branch used in a kind of vial defect detecting device and this vial defect detecting device as device, belongs to vial defects detection field.
Background technology
In the Machine Vision Detection field, detected object is varied, the optical signature of its defective is also far from each other, usually for the defects detection of certain type, can adopt one or more camera multi-angle to take simultaneously, therefore just need to arrange continuously several stations and come object is carried out complete detection, and like this, the detection system very bulky complex that can become, and cost height are unfavorable for promoting.
Be example with the vial detection, glass owing to be subjected to the influence of technology, flaws such as calculus burning into sand can occur inevitably when being shaped.Generally speaking, the client need measure bottleneck, bottleneck, the body physical dimension of vial, and defectives such as the calculus burning into sand of bottle, big crackle, dirty, unbalanced stress are detected.For physical dimension, generally can adopt mode backlight, be the both sides, front and back that area source and camera lay respectively at vial, thereby it is different with absorption for ray refraction with the center based on the vial edge, the image of taking at camera obtains the profile of vial, goes out the physical size of vial according to the calibrated and calculated of object space.Calculus burning into sand for bottle, because it has opaque characteristic, also can adopt similar mode backlight to take, but, when the calculus burning into sand is positioned at the scale mark zone of vial, absorb and refraction action because scale and mark also have light, its part image effect is just similar with the calculus burning into sand, therefore influences the detection of calculus burning into sand defective.For unbalanced stress, present domestic vial manufacturer adopts the detection mode of sensor or off-line sampling observation mostly, the contingency of this detection mode is big, can't guarantee the quality of each vial of dispatching from the factory, has potential safety hazard, and the detection speed of this detection mode is low, is unfavorable for requirement of large-scale production.
This shows, design and a kind ofly both can detect the vial normal defect that the device that can carry out comprehensively vial unbalanced stress defective again, detect in real time is present urgent problem.
The utility model content
The purpose of this utility model is to provide a kind of vial defect detecting device and divides as device, based on this minute this vial defect detecting device as device not only can the normal defect of vial be detected, also can the stress defective of vial be detected, reach the purpose of comprehensive detection vial quality.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of vial defect detecting device, it is characterized in that: it comprises area source, the polarizer, diaphragm, divide as device, lens and camera, the place ahead of this area source is provided with this polarizer, the place ahead of this polarizer is provided with diaphragm, vial to be detected is between this polarizer and this diaphragm, the place ahead of this diaphragm is from closely to being provided with this branch far successively as device, these lens, this camera, this branch is as device, these lens, the coaxial setting of this camera, wherein: this branch comprises the Fresnel double prism as device, two of this Fresnel double prism plane of incidences that tilt to intersect towards this diaphragm and with this vial on the corresponding setting in position to be detected, the rib ridge that these two plane of incidences intersect vertically arranges, the left-half of the exit plane of this Fresnel double prism or right half part plating are provided with polarizing coating, the polarization direction of this polarizing coating and the polarization direction of this polarizer are perpendicular, and this camera is connected with the control disposal system.
Described diaphragm comprises two shadow shields, and these two shadow shield symmetries are positioned at the both sides of vial to be detected.
The angle of wedge of described Fresnel double prism is between 5 degree are spent to 35.
The polarization direction of the described polarizer is horizontal direction, and the polarization direction of described polarizing coating is vertical direction.
Described polarizing coating is wilfully vibrating diaphragm or round wilfully vibrating diaphragm of line.
On the exit plane of described Fresnel double prism plating half part of establishing described polarizing coating the dim light film is not established in plated film or plating.
Vial to be detected is positioned on the conveyer and transmits, and this conveyer is connected with described control disposal system.
A kind of branch is as device, and it is characterized in that: it comprises the Fresnel double prism, and the left-half of the exit plane of this Fresnel double prism or right half part plating are provided with polarizing coating.The angle of wedge of described Fresnel double prism is between 5 degree are spent to 35.On the exit plane of described Fresnel double prism plating half part of establishing described polarizing coating the dim light film is not established in plated film or plating.
The utility model has the advantages that:
By dividing as device, the utility model vial defect detecting device detects based on two light paths vial, these two light paths are conventional light path and polarization light path, outside conventional light path is used for big crackle, dirty, calculus burning into sand normal defects such as (not being positioned at the scale mark zone of vial) detected, also can measure vial physical dimension, the stress defective (unbalanced stress defective, be positioned at the calculus burning into sand defective in the scale mark zone of vial) that the polarization light path is used for vial detects, the detection accuracy height, false drop rate is low.
The utility model vial defect detecting device only just can be realized the detection of and stress defective conventional to vial based on a camera, it is low to detect cost, and detection speed is fast, and can realize the measurement to vial physical dimension.
The utility model vial defect detecting device not only can detect vial, medium and small fabric width glassware, also can numerous objects such as cotton, LCD screen that defective to be detected and self possess opposite polarized light property be detected, when for example cotton being detected, can detect normal defects such as the colored different fibre that mixes in the cotton, hairlines on the one hand, can the defectives such as PVC film in the cotton be detected on the other hand.
The utility model divides the part ejaculation that one road incident light process is had polarizing coating as device, the part that another road incident light never has polarizing coating penetrates, pool two images---polarization image, normal picture at camera as the plane through camera lens, thereby realize judgement to the incident light characteristic by the analyzing and processing to these two kinds of images, help the utility model vial defect detecting device to realize the testing goal of and stress defective conventional to vial.
Description of drawings
Fig. 1 is the composition synoptic diagram of the utility model vial defect detecting device.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is that the utility model branch is as the schematic perspective view of device.
Embodiment
As shown in Figure 1 to Figure 3, the utility model vial defect detecting device comprises area source 10, the polarizer 20, diaphragm 30, divide as device 40, lens 50 and camera 60, the place ahead of this area source 10 is provided with this polarizer 20, the place ahead of this polarizer 20 is provided with diaphragm 30, vial 90 to be detected is between this polarizer 20 and this diaphragm 30, the place ahead of this diaphragm 30 is from closely to being provided with this branch far successively as device 40, these lens 50, this camera 60, the camera lens of this camera 60 arranges towards these lens 50, this branch is as device 40, these lens 50, these camera 60 coaxial settings, wherein: this branch comprises Fresnel double prism 41 as device 40, two of this Fresnel double prism 41 plane of incidences 411 that tilt to intersect towards this diaphragm 30 and with this vial 90 on the corresponding setting in position to be detected, arrange vertical with surface level of rib ridge 412 that these two plane of incidences 411 intersect, the left-half of the exit plane 413 of this Fresnel double prism 41 or right half part plating are provided with polarizing coating 42, the polarization direction of the polarization direction of this polarizing coating 42 and this polarizer 20 is perpendicular, and this camera 60 is connected with control disposal system 70.
In actual design, the preceding of this area source 10 can be provided with parallel mating plate (not shown), and parallel mating plate is used for that the diverging light that area source 10 is launched is become directional light and penetrates, and is used for vial and measures the detection that reaches tiny defect.Area source 10 is chosen as the area source of LED area source or high-frequency florescent lamp composition.The size of the size of area source 10 and vial to be detected 90 is suitable, in practice, the size of the vial 90 that the size minimum of this area source 10 will equal to be detected, preferably big, monochromatic light (single wavelength) preferably, also can be white light, but can bring chromatic dispersion problem, influence edge definition.In addition, area source 10 requires luminous even.
This diaphragm 30 comprises two shadow shields 301, these two shadow shield 301 symmetries are positioned at the both sides of vial to be detected 90, and at a distance of setpoint distance, as Fig. 2, in practice, usually, axis L runs through the axis of vial 90 to be detected, like this, these two shadow shields 301 namely are symmetrical arranged about axis L.For the vial of different size, different light path design, corresponding adjusting need be done in the position of diaphragm 30, the height of the height of this shadow shield 301 and vial to be detected 90 is suitable, the effect of this diaphragm 30 is to eliminate the incident branch as the parasitic light (as blocking the light of penetrating from vial 90 both sides) of device 40, make it can not cause interference to dividing two images as 40 one-tenth in device, make the degree of separation of two images more obvious, be easy to identification.
As Fig. 3, divide and comprise Fresnel double prism 41 as device 40, the left-half of the exit plane of this Fresnel double prism 41 or right half part plating are provided with polarizing coating 42.The cross section of Fresnel double prism 41 roughly is symmetrical triangular shape along axis L, two plane of incidences 411 tilt to intersect to form rib ridge 412, the exit plane 413 opposing with plane of incidence 411 can be made into shapes such as circle according to actual needs, the locking angle of Fresnel double prism 41 is between 5 degree are spent to 35, for example, 5 degree, 20 degree, 35 degree, preferably select 15 degree, one of them plane of incidence 411 corresponding exit plane partly is coated with polarizing coating 42, and polarizing coating 42 can be line wilfully vibrating diaphragm or round wilfully vibrating diaphragm.On the exit plane 413 of Fresnel double prism 41 plating establish polarizing coating 42 half part not plated film maybe can plate and establish the dim light film.In practice, this Fresnel double prism 41 can obtain by two right-angle prism splicings.
As shown in Figure 2, the left and right sides to device among the figure defines, and among the figure, the plane of incidence 411 corresponding exit plane parts (right half part of exit plane 413) on Fresnel double prism 41 right sides are coated with polarizing coating 42.
In actual design, the polarization direction of the polarizer 20 can be set at horizontal direction, and correspondingly, the polarization direction of polarizing coating 42 is vertical direction.
Camera 60 can be linear array or area array cameras, black and white or color camera, CCD or CMOS camera.For line-scan digital camera, its sensor should be on the plane with the angle of wedge.
In actual design, vial 90 to be detected can be positioned on the conveyer 80 and transmit, and this conveyer 80 is connected with control disposal system 70, in addition, relevant apparatus such as rejection device (not shown) can be set also in the relevant position of conveyer 80.
In the utility model, what area source 10, the polarizer 20, diaphragm 30, lens 50, camera 60, control disposal system 70, conveyer 80 were this area knows device or equipment, and it is concrete to constitute no longer here and describe in detail.
When reality is used, the position, the left and right sides that should area source 10, the polarizer 20, diaphragm 30 rationally be set according to size and the position to be detected of vial to be detected and divide as the position, the left and right sides of device 40, lens 50 and camera 60, highly.
As Fig. 1 and Fig. 2, the light that area source 10 is launched is incident upon on vial to be detected 90 dorsal parts after becoming polarized light via the polarizer 20, the incident branch is as device 40 after blocking parasitic light from the diverging light of vial 90 transmissions via diaphragm 30, dividing the light that will inject as device 40 to be divided into two-way penetrates, as Fig. 2, one tunnel (polarization light path) is plane of incidence 411 incidents from the right side, then penetrate from polarizing coating 42, another road (conventional light path) do not penetrate from polarizing coating 42 for plane of incidence 411 incidents from the left side.The refraction back takes place respectively from exit plane 413 parallel ejaculations in the light of two plane of incidence 411 incidents from the Fresnel double prism 41, but, polarizations also will take place by polarizing coating 42 in the light that penetrates from the right half part of exit plane 413, just converge via lens 50 then and taken imagings (this image is called polarization image) by camera 60, do not taken imagings (this image is called normal picture) and directly do not converge the back via lens 50 by polarizing coating 42 from the light that the left-half of exit plane 413 penetrates by camera 60, this polarization image, normal picture is the image at position to be detected on the vial to be detected 90, in the entire image that camera 60 is taken, this polarization image, this normal picture lays respectively at the right side, the left side, but polarization image is different with the characteristic of normal picture, has reflected the characteristic at position to be detected from two angles.
Then, camera 60 is transferred to control disposal system 70 with the image of taking, thereby the image that 70 pairs of transmission of control disposal system come carries out analyzing and processing, judges vial and whether has relevant normal defect and stress defective, and realize the mensuration to vial physical dimension.In processing procedure, because normal picture is only to have passed through the image that obtains partially, so namely can be used for big crackle to vial by analyzing its characteristics of image, dirty, calculus burning into sand normal defects such as (not being positioned at the scale mark zone of vial) is judged (known technology), also can measure the physical dimension of vial in addition, and polarization image is through playing (polarizer 20) partially, the image that obtains after the analyzing (polarizing coating 42), so it can be used for stress defective (the unbalanced stress defective to vial, be positioned at the calculus burning into sand defective in the scale mark zone of vial) judge.It is identical with the polarization direction of the polarizer 20 and be an identical direction to see through the direction of vibration of the light that the polarizer 20 penetrates, therefore, if there is not the stress defective in the position to be detected of vial, the direction of vibration of light that then sees through vial 90 positions to be detected is still consistent with the polarization direction of the polarizer 20, thereby produce extinction effect through the light behind the polarizing coating 42, the polarization image that obtains all presents extinction effect (showing as uniform details in a play not acted out on stage, but told through dialogues), if there is the unbalanced stress defective in the position to be detected of vial, then light sees through unbalanced stress, can be broken down into two perpendicular beam vector light of direction of vibration behind the anisotropic position, make that the direction of vibration of a branch of light in this two-beam must be different with the polarization direction of the polarizer 20, therefore, behind process polarizing coating 42, the inevitable zone that still has not delustring on the polarization image that obtains, thereby can judge in the regional corresponding vial position of not delustring and have the unbalanced stress defective, if there is calculus burning into sand defective in the scale mark zone in the position to be detected of vial, because scale, mark does not change the characteristic of glass, the calculus burning into sand can influence the structural homogeneity of glass and influence the isotropy feature of glass, therefore, the same with the unbalanced stress defective, the calculus burning into sand that is positioned at the scale mark zone of vial can not carry out delustring fully to polarized light, makes scale mark zone on the polarization image still have the zone of not delustring.
For the vial that has related defects, control disposal system 70 can realize the inspection rejects operation then by the control to conveyer 80 and rejection device, then next one vial to be detected is proceeded quality testing.
The utility model has the advantages that:
By dividing as device, the utility model vial defect detecting device detects based on two light paths vial, these two light paths are conventional light path and polarization light path, outside conventional light path is used for big crackle, dirty, calculus burning into sand normal defects such as (not being positioned at the scale mark zone of vial) detected, also can measure vial physical dimension, the stress defective (unbalanced stress defective, be positioned at the calculus burning into sand defective in the scale mark zone of vial) that the polarization light path is used for vial detects, the detection accuracy height, false drop rate is low.
The utility model vial defect detecting device only just can be realized the detection of and stress defective conventional to vial based on a camera, it is low to detect cost, and detection speed is fast, and can realize the measurement to vial physical dimension.
The utility model vial defect detecting device not only can detect vial, medium and small fabric width glassware, also can numerous objects such as cotton, LCD screen that defective to be detected and self possess opposite polarized light property be detected, when for example cotton being detected, can detect normal defects such as the colored different fibre that mixes in the cotton, hairlines on the one hand, can the defectives such as PVC film in the cotton be detected on the other hand.
The utility model divides the part ejaculation that one road incident light process is had polarizing coating as device, the part that another road incident light never has polarizing coating penetrates, pool two images---polarization image, normal picture at camera as the plane through camera lens, thereby realize judgement to the incident light characteristic by the analyzing and processing to these two kinds of images, help the utility model vial defect detecting device to realize the testing goal of and stress defective conventional to vial.
Above-mentioned is preferred embodiment of the present utility model and the know-why used thereof; for a person skilled in the art; under the situation that does not deviate from spirit and scope of the present utility model; any based on apparent changes such as the equivalent transformation on the technical solutions of the utility model basis, simple replacements, all belong within the utility model protection domain.
Claims (10)
1. vial defect detecting device, it is characterized in that: it comprises area source, the polarizer, diaphragm, divide as device, lens and camera, the place ahead of this area source is provided with this polarizer, the place ahead of this polarizer is provided with diaphragm, vial to be detected is between this polarizer and this diaphragm, the place ahead of this diaphragm is from closely to being provided with this branch far successively as device, these lens, this camera, this branch is as device, these lens, the coaxial setting of this camera, wherein: this branch comprises the Fresnel double prism as device, two of this Fresnel double prism plane of incidences that tilt to intersect towards this diaphragm and with this vial on the corresponding setting in position to be detected, the rib ridge that these two plane of incidences intersect vertically arranges, the left-half of the exit plane of this Fresnel double prism or right half part plating are provided with polarizing coating, the polarization direction of this polarizing coating and the polarization direction of this polarizer are perpendicular, and this camera is connected with the control disposal system.
2. vial defect detecting device as claimed in claim 1 is characterized in that:
Described diaphragm comprises two shadow shields, and these two shadow shield symmetries are positioned at the both sides of vial to be detected.
3. vial defect detecting device as claimed in claim 1 is characterized in that:
The angle of wedge of described Fresnel double prism is between 5 degree are spent to 35.
4. vial defect detecting device as claimed in claim 1 is characterized in that:
The polarization direction of the described polarizer is horizontal direction, and the polarization direction of described polarizing coating is vertical direction.
5. as claim 1 or 4 described vial defect detecting devices, it is characterized in that:
Described polarizing coating is wilfully vibrating diaphragm or round wilfully vibrating diaphragm of line.
6. vial defect detecting device as claimed in claim 1 is characterized in that:
On the exit plane of described Fresnel double prism plating half part of establishing described polarizing coating the dim light film is not established in plated film or plating.
7. vial defect detecting device as claimed in claim 1 is characterized in that:
Vial to be detected is positioned on the conveyer and transmits, and this conveyer is connected with described control disposal system.
8. a branch is characterized in that as device: it comprises the Fresnel double prism, and the left-half of the exit plane of this Fresnel double prism or right half part plating are provided with polarizing coating.
9. branch as claimed in claim 8 is characterized in that as device:
The angle of wedge of described Fresnel double prism is between 5 degree are spent to 35.
10. branch as claimed in claim 8 is characterized in that as device:
On the exit plane of described Fresnel double prism plating half part of establishing described polarizing coating the dim light film is not established in plated film or plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320168467 CN203148862U (en) | 2013-04-07 | 2013-04-07 | Glass bottle defect detecting device and image-separating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320168467 CN203148862U (en) | 2013-04-07 | 2013-04-07 | Glass bottle defect detecting device and image-separating device |
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| Publication Number | Publication Date |
|---|---|
| CN203148862U true CN203148862U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320168467 Withdrawn - After Issue CN203148862U (en) | 2013-04-07 | 2013-04-07 | Glass bottle defect detecting device and image-separating device |
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| Country | Link |
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| CN (1) | CN203148862U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234979A (en) * | 2013-04-07 | 2013-08-07 | 北京大恒图像视觉有限公司 | Glass bottle defect detection apparatus and image splitting device |
| CN105334230A (en) * | 2015-11-26 | 2016-02-17 | 凌云光技术集团有限责任公司 | Light source devices for detecting hole defect of high-depth-ratio PCB (printed circuit board) |
-
2013
- 2013-04-07 CN CN 201320168467 patent/CN203148862U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234979A (en) * | 2013-04-07 | 2013-08-07 | 北京大恒图像视觉有限公司 | Glass bottle defect detection apparatus and image splitting device |
| CN103234979B (en) * | 2013-04-07 | 2015-09-09 | 北京大恒图像视觉有限公司 | Vial defect detecting device and point picture device |
| CN105334230A (en) * | 2015-11-26 | 2016-02-17 | 凌云光技术集团有限责任公司 | Light source devices for detecting hole defect of high-depth-ratio PCB (printed circuit board) |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20150909 |
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| RGAV | Abandon patent right to avoid regrant |