CN203672798U - Device for detecting defects of anti-theft rings of PET (polyethylene terephthalate) bottle covers in all directions - Google Patents
Device for detecting defects of anti-theft rings of PET (polyethylene terephthalate) bottle covers in all directions Download PDFInfo
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- CN203672798U CN203672798U CN201420003857.4U CN201420003857U CN203672798U CN 203672798 U CN203672798 U CN 203672798U CN 201420003857 U CN201420003857 U CN 201420003857U CN 203672798 U CN203672798 U CN 203672798U
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- bottle cap
- pet bottle
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- 230000007547 defect Effects 0.000 title claims abstract description 24
- 229920000139 polyethylene terephthalate Polymers 0.000 title abstract 5
- 239000005020 polyethylene terephthalate Substances 0.000 title abstract 5
- -1 polyethylene terephthalate Polymers 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 claims abstract description 50
- 238000007664 blowing Methods 0.000 claims abstract description 11
- 230000006978 adaptation Effects 0.000 claims description 10
- 238000003384 imaging method Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 230000000007 visual effect Effects 0.000 description 4
- 230000008034 disappearance Effects 0.000 description 3
- 230000006578 abscission Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000013405 beer Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The utility model discloses a device for detecting defects of anti-theft rings of PET (polyethylene terephthalate) bottle coversin all directions. The device comprises a water blowing device, a first detection cabinet and a second detection cabinet which are arranged along a to-be-detected PET bottle conveying belt, wherein a front light detection station I and a front light detection station II are arranged in the first detection cabinet, a back light detection station I and a back light detection station II are arranged in the second detection cabinet, and the water blowing device is arranged at a bottle feed end of the conveying belt. The device has the advantages that the device is free of blind areas, simple in structure, low in cost, high in detection accuracy and the like.
Description
Technical field
The utility model belongs to industrial automation detection technique field, is specifically related to a kind of pick-up unit of comprehensive PET bottle cap anti-theft ring defect.
Background technology
At present, the safety problem of food more and more receives government and national concern.In the production run of existing beer, beverage and medicine, all require container filling to meet corresponding quality standard, to carry out strict detection in each link of producing, once there is underproof bottleneck, not only affect the reputation of manufacturer, and due to bottleneck and consumer's intimate contact, may cause user injured, cause consumer's vital interests to incur loss.Wherein, whether sealing is intact is one of very important index in PET bottle packing, not only directly affects the quality of the inner food of PET bottle, also affects product appearance, therefore the detection of bottle cap state is had to very important meaning.And the mark that anti-theft ring is not opened as PET bottle directly affects sealing and the outward appearance of product.Anti-theft ring defect mainly causes because in spiral cover process, torsion or filling pressure are improper, and the performance of defect mainly contains bridging point disconnection, anti-theft ring fracture, anti-theft ring disappearance and anti-theft ring curls inward etc., anti-theft ring defects detection difficult point is that position and the form of expression of defect generation is uncertain.The current method based on preposition light detection anti-theft ring defect, exist and need a lot of stations or complicated mirror image could realize omnibearing detection, complex structure, poor stability, complexity and the cost of hardware are greatly increased, the problem that has blind area, visual angle in detection system, has affected accuracy of detection.
Summary of the invention
The purpose of this utility model is: provide that a kind of cost is low, accuracy of detection is high, the pick-up unit of the comprehensive PET bottle cap anti-theft ring defect of non-blind area.
The technical solution of the utility model is: comprise the water-blowing device, the first detecting box and the second detecting box that arrange along PET bottle conveying belt to be measured, front lighting is set in the first detecting box and detects station I, front lighting detection station II, detection station I backlight and detection station II backlight are set in the second detecting box; Front lighting detects station I and comprises camera A1 and light source I, and front lighting detects station II and comprises camera A2 and light source II, and detection station I backlight comprises camera B1 and uniform surface light I, and detection station II backlight comprises camera B2 and uniform surface light II; Camera A1 and camera A2 are separately positioned on bottle cap both sides, adopt preposition photoimaging, camera A1 and camera A2 observation angle level, height is consistent with PET bottle cap adaptation ring height to be detected, light source I is positioned over above or below camera A1, with bottle cap and camera A1 line symmetric position, tiltedly lower or oblique upper angle irradiates bottle cap region; Light source II is positioned over above or below camera A2, and bottle cap and camera A2 line symmetric position, and tiltedly lower or oblique upper angle irradiates bottle cap region; Camera B1 and camera B2 are separately positioned on bottle cap both sides, adopt imaging backlight, camera B1 and the same angle of camera A1, camera B1 observation angle level, height is consistent with PET bottle cap adaptation ring height to be detected, and uniform surface light I is placed on the dead astern of bottle cap and camera B1 line; Camera B2 and the same angle of camera A2, camera B2 observation angle level, height is consistent with PET bottle cap adaptation ring height to be detected, and uniform surface light II is placed on the dead astern of bottle cap and camera B2 line; Water-blowing device is arranged on the bottle-inlet end of conveying belt.
Further, water-blowing device is symmetricly set on the left and right sides of PET bottle to be measured.
Further, the detection station I of the front lighting in the first detecting box and front lighting detect station II and are provided with asynchronous flip flop equipment.
Further, light source I and and light source II be strip source.
The beneficial effects of the utility model are: the utility model is owing to being provided with the first detecting box and the second detecting box, adopt the mode of parallel backlight and preposition light compensation, the anti-theft ring that has realized 360 ° of omnibearing non-blind areas detects, bottle cap region is divided in multiple visual angles and is observed, only need 2 preposition smooth stations, 2 stations backlight the defect of diverse location to be carried out to the imaging of non-blind area, reduce hardware cost; Meanwhile, can be good at eliminating the impact that adjacent visual angle light source brings, improve image quality and accuracy of detection.Compare with existing technology, the utlity model has non-blind area, simple in structure, cost is low, accuracy of detection advantages of higher, and the anti-theft ring defects such as bridge cut-off, abscission ring, crimping and disappearance have been reached to more than 99.9% accuracy of detection, is applicable to multiple PET bottle cap.
Accompanying drawing explanation
Fig. 1 is backlight and preposition light compensation observation index path of the present utility model;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is overall flow figure of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described further, following examples are only for the utility model is described, but are not used for limiting scope of the present utility model.As shown in structural representation as of the present utility model in Fig. 2, the utility model comprises the water-blowing device 3, the first detecting box 4 and the second detecting box 5 that arrange along PET bottle conveying belt 2 to be measured, the interior front lighting that arranges of the first detecting box 4 detects station I, front lighting detection station II, interior detection station I backlight and the detection station II backlight of arranging of the second detecting box 5.PET bottle to be measured moves by conveying belt 2, detects station I, front lighting detection station II, the detection station I backlight of the second detecting box 5 and detection station II backlight by the front lighting of the first detecting box 4.Front lighting detects station I and comprises camera A1 and strip source I 6, front lighting detects station II and comprises camera A2 and strip source II 7, detection station I backlight comprises camera B1 and uniform surface light I 8, detection station II backlight comprises camera B2 and uniform surface light II 9, as shown in backlight and preposition light compensation observation index path as of the present utility model in Fig. 1.Camera A1 and camera A2 are separately positioned on bottle cap 1 both sides, adopt preposition photoimaging, camera A1 and camera A2 observation angle level, height is consistent with PET bottle cap 1 adaptation ring height to be detected, strip source I 6 is positioned over above or below camera A1, with bottle cap and camera A1 line symmetric position, tiltedly lower or oblique upper angle irradiates bottle cap region.Strip source II 7 is positioned over above or below camera A2, and bottle cap and camera A2 line symmetric position, and tiltedly lower or oblique upper angle irradiates bottle cap region.Camera B1 and camera B2 are separately positioned on bottle cap 1 both sides, adopt imaging backlight, camera B1 and the same angle of camera A1, camera B1 observation angle level, height is consistent with PET bottle cap 1 adaptation ring height to be detected, and uniform surface light I 8 is placed on the dead astern of bottle cap and camera B1 line.Camera B2 and the same angle of camera A2, camera B2 observation angle level, height is consistent with PET bottle cap 1 adaptation ring height to be detected, and uniform surface light II 9 is placed on the dead astern of bottle cap and camera B2 line.
As shown in backlight and preposition light compensation observation index path as of the present utility model in Fig. 1, camera A1, camera A2 can observe bottle cap left and right sides M1, M2 region by preposition mode, but can not be observed during in the upper and lower both sides of bottle cap when defect.And consider the feature of backlight image, profile that can edge has good reaction, and anti-theft ring defect in this region just in time can edge region have response.Therefore, the utility model designed with the same angle of preposition light under, carry out imaging backlight with camera B1, camera B2, the region that camera B1, camera B2 imaging can detect, as the N1 of bottle cap upper and lower institute distance pole, N2 region, is just in time the blind area of preposition photoimaging.By merging the testing result in these two kinds of regions, can realize the detection of 360 degree non-blind areas.
Under preposition photoimaging, bottle cap region can present compared with high brightness and background and defect area are all the regions that gray-scale value is lower.If preposition light is detected to station design on the straight line of the symmetrical both sides of same bottle, the particularly light transmission of light weight bottle cap, the illumination on opposite easily affects the imaging effect of this side, and defect contrast is reduced.Therefore, the utility model has designed the structure of Fig. 2.Left side bottle-inlet end is one group of symmetrical water-blowing device 3, water-blowing device 3 setting height(from bottom)s are a little more than bottle cap, blow vertically downward with one group of blow gun, remove the globule at bottle cap top, another several groups of valves are blown from the both sides of bottle cap with the angle of approximately 45 ° of oblique belows, remove bottle cap and survey the globule in sidewall and adaptation ring, the globule reducing on bottle cap affects subsequent detection.Then enter the first detecting box 4, front lighting detects station I and front lighting detection station II is provided with asynchronous flip flop equipment, by such asynchronous system, is not increasing under the condition in detecting box space, has avoided the caused interference of light that area source is penetrated.And then enter the second detecting box 5, the second detecting box 5 adopts and the identical observation angle of the first detecting box 4, carry out the detection of anti-theft ring defect by mode backlight, compensate well the detection blind area of preposition smooth detecting box, can detect the defects such as anti-theft ring bridge cut-off, abscission ring, disappearance and crimping, and the defect such as the second detecting box 5 height lid, askew lid or uncovered while can also be used to detect bottle cap rotating cap has reduced hardware complexity and the cost of bottle cap detection system to a great extent.
Fig. 3 is overall flow figure of the present utility model, detect station I, front lighting detection station II, detection station I backlight and four of detection station II backlight by front lighting and detect stations, in conjunction with preposition light and the backlight image at 4 visual angles, utilize respectively preposition light more easily to detect the different imaging characteristicses of texture, easier Edge detected backlight, after detecting, combine and judge that whether product to be detected is qualified, then by device for eliminating, the bottle of PET bottle cap anti-theft ring defect is rejected.
Claims (4)
1. the pick-up unit of a comprehensive PET bottle cap anti-theft ring defect, it is characterized in that: comprise the water-blowing device (3), the first detecting box (4) and the second detecting box (5) that arrange along PET bottle conveying belt to be measured (2), front lighting is set in the first detecting box (4) and detects station I, front lighting detection station II, detection station I backlight and detection station II backlight are set in the second detecting box (5); Front lighting detects station I and comprises camera A1 and light source I (6), front lighting detects station II and comprises camera A2 and light source II (7), detection station I backlight comprises camera B1 and uniform surface light I (8), and detection station II backlight comprises camera B2 and uniform surface light II (9); Camera A1 and camera A2 are separately positioned on bottle cap (1) both sides, adopt preposition photoimaging, camera A1 and camera A2 observation angle level, height is consistent with PET bottle cap to be detected (1) adaptation ring height, light source I (6) is positioned over above or below camera A1, with bottle cap and camera A1 line symmetric position, tiltedly lower or oblique upper angle irradiates bottle cap region; Light source II (7) is positioned over above or below camera A2, and bottle cap and camera A2 line symmetric position, and tiltedly lower or oblique upper angle irradiates bottle cap region; Camera B1 and camera B2 are separately positioned on bottle cap (1) both sides, adopt imaging backlight, camera B1 and the same angle of camera A1, camera B1 observation angle level, height is consistent with PET bottle cap to be detected (1) adaptation ring height, and uniform surface light I (8) is placed on the dead astern of bottle cap and camera B1 line; Camera B2 and the same angle of camera A2, camera B2 observation angle level, height is consistent with PET bottle cap to be detected (1) adaptation ring height, and uniform surface light II (9) is placed on the dead astern of bottle cap and camera B2 line; Water-blowing device (3) is arranged on the bottle-inlet end of conveying belt (2).
2. the pick-up unit of comprehensive PET bottle cap anti-theft ring defect according to claim 1, is characterized in that: described water-blowing device (3) is symmetricly set on the left and right sides of PET bottle to be measured.
3. the pick-up unit of comprehensive PET bottle cap anti-theft ring defect according to claim 1, is characterized in that: the front lighting in described the first detecting box (4) detects station I and front lighting detection station II is provided with asynchronous flip flop equipment.
4. the pick-up unit of comprehensive PET bottle cap anti-theft ring defect according to claim 1, is characterized in that: described light source I (6) and and light source II (7) be strip source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003857.4U CN203672798U (en) | 2014-01-06 | 2014-01-06 | Device for detecting defects of anti-theft rings of PET (polyethylene terephthalate) bottle covers in all directions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003857.4U CN203672798U (en) | 2014-01-06 | 2014-01-06 | Device for detecting defects of anti-theft rings of PET (polyethylene terephthalate) bottle covers in all directions |
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| Publication Number | Publication Date |
|---|---|
| CN203672798U true CN203672798U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420003857.4U Expired - Lifetime CN203672798U (en) | 2014-01-06 | 2014-01-06 | Device for detecting defects of anti-theft rings of PET (polyethylene terephthalate) bottle covers in all directions |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104700423A (en) * | 2015-03-27 | 2015-06-10 | 四川索牌科技股份有限公司 | Method and device for detecting bottle cap |
| CN104984921A (en) * | 2015-07-21 | 2015-10-21 | 威海远航科技发展股份有限公司 | Empty bottle detection robot assembly line |
-
2014
- 2014-01-06 CN CN201420003857.4U patent/CN203672798U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104700423A (en) * | 2015-03-27 | 2015-06-10 | 四川索牌科技股份有限公司 | Method and device for detecting bottle cap |
| CN104984921A (en) * | 2015-07-21 | 2015-10-21 | 威海远航科技发展股份有限公司 | Empty bottle detection robot assembly line |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |