CN105158266A - Device and method for 360-degree bottle body production line front-light vision inspection - Google Patents
Device and method for 360-degree bottle body production line front-light vision inspection Download PDFInfo
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- CN105158266A CN105158266A CN201510606480.0A CN201510606480A CN105158266A CN 105158266 A CN105158266 A CN 105158266A CN 201510606480 A CN201510606480 A CN 201510606480A CN 105158266 A CN105158266 A CN 105158266A
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Abstract
The invention provides a device and method for 360-degree bottle body production line front-light vision inspection. The device comprises a front inspection station and a back inspection station which are arranged on a conveyor belt of a production line, a first inspection unit and a fourth inspection unit which are arranged on one side of the conveyor belt of the production line and a second inspection unit and a third inspection unit which are arranged on the other side of the conveyor belt of the production line; each inspection unit is composed of a set of cameras and a set of light sources. According to the device and method, the high-speed exposure characteristics of the industrial cameras and the light sources and light path crossing imaging are utilized, vision imaging covering the side face of a bottle body is achieved, industrial defects, such as dirty spots, loss, flashing, deformations and uneven thickness, of the bottle body are highlighted, the two closer inspection stations are adopted, the space utilization rate is improved, and the structure is compact and reasonable; in addition, through the set photographing order, camera imaging is non-interfering, the device and the method are very suitable for a high-speed integrated machine vision inspection system, and therefore the purpose of efficient inspecting and selecting of the bottle body production line is achieved.
Description
Technical field
The present invention relates to full-automatic machine technical field of vision detection, specifically light vision inspection apparatus and method before a kind of 360 degree of body streamlines.
Background technology
The optical visual detection system of plastic bottle generally adopts multiple light courcess polyphaser to work in coordination with exposal model, is placed in the homonymy of bottle, is identified the defective workmanship on body by the light and shade of pattern by camera and light source.Pick-up unit common in the market adopts four to detect station, and space availability ratio is low, loosely organized, cannot meet the needs of the integrated Machine Vision Inspecting System of current high speed.
Summary of the invention
The object of the present invention is to provide light vision inspection apparatus and method before a kind of compact conformation, rationally distributed 360 degree of body streamlines, the 360 degree full visual angle imagings covering body side can be realized, the applicable integrated Machine Vision Inspecting System of high speed.
Technical scheme of the present invention is:
Light vision inspection apparatus before a kind of 360 degree of body streamlines, this device comprises former and later two detection stations be arranged on streamline conveying belt, be designated as the first detection station and second respectively and detect station, and be arranged on the first detecting unit and the 4th detecting unit, the second detecting unit being arranged on streamline conveying belt opposite side and the 3rd detecting unit of streamline conveying belt the same side; Described first detecting unit is made up of first group of camera and first group of light source, described second detecting unit is made up of second group of camera and second group of light source, described 3rd detecting unit is made up of the 3rd group of camera and the 3rd group of light source, and described 4th detecting unit is made up of the 4th group of camera and the 4th group of light source; Described first detecting unit and the second detecting unit are used for taking pictures to the body that arrival first detects station successively, and described 3rd detecting unit and the 4th detecting unit are used for taking pictures to the body that arrival second detects station successively.
Light vision inspection apparatus before 360 degree of described body streamlines, described first group of camera, second group of camera, the optical axis of the 3rd group of camera and the 4th group of camera streamline conveying belt projection in the plane intersect formation square, and described foursquare diagonal line intersection point overlaps with two line mid points detecting station, described first detect optical axis that station is arranged on first group of camera and second group of camera streamline conveying belt projection infall in the plane, described second detect optical axis that station is arranged on the 3rd group of camera and the 4th group of camera streamline conveying belt projection infall in the plane.
Light vision inspection apparatus before 360 degree of described body streamlines, described first detecting unit and the second detecting unit distribute about the rotational symmetry that is wired to that two are detected station, and described 3rd detecting unit and the 4th detecting unit distribute about the rotational symmetry that is wired to that two are detected station; Described first detecting unit becomes rotational symmetry to distribute with the 4th detecting unit about the perpendicular bisector that two are detected station line, and described second detecting unit becomes rotational symmetry to distribute with the 3rd detecting unit about the perpendicular bisector that two are detected station line.
Light vision inspection apparatus before 360 degree of described body streamlines, described two distances detected between stations are less than the most bottle spacing on streamline conveying belt.
Light vision inspection apparatus before 360 degree of described body streamlines, often organizes camera and is made up of more than one industrial camera.
Light vision inspection apparatus before 360 degree of described body streamlines, often organize light source to form by two planar light sources, gap is provided with between described two planar light sources, and the axis of two planar light sources streamline conveying belt the angle that forms of projection be in the plane 5 ~ 10 degree, the optical axis of described folder bisector of angle and corresponding camera streamline conveying belt projection in the plane overlap.
Light vision inspection apparatus before 360 degree of described body streamlines, often organizes light source and all adopts middle part to offer the arc light source of through hole.
The detection method of light vision inspection apparatus before described a kind of 360 degree of body streamlines, comprises the following steps:
(1) described first detecting unit and the second detecting unit are according to the order of taking pictures preset, and take pictures successively to the body that arrival first detects station;
(2) described 3rd detecting unit and the 4th detecting unit are according to the order of taking pictures preset, and take pictures successively to the body that arrival second detects station.
As shown from the above technical solution, the invention solves body to detect multi-angle and efficiently to take pictures problem, camera and light source is arranged by the symmetria bilateralis at streamline conveying belt, organically camera and light source combination of two are formed a detecting unit, the high-speed exposure characteristic of camera and light source and light path is utilized to be crossed as picture, achieve the visual imaging covering body side, highlight the stain of body, defect, overlap, distortion, the industrial defect such as uneven distribution, adopt the detection station of two close together, improve space availability ratio, compact conformation is reasonable, and the order of taking pictures by setting, camera imaging does not interfere with each other, very be applicable to the integrated Machine Vision Inspecting System of high speed, thus achieve the object of the high performance pipeline grouping system of body.
Accompanying drawing explanation
Fig. 1 is apparatus structure of the present invention and light path schematic diagram;
Fig. 2 is perspective view of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, light vision inspection apparatus before a kind of 360 degree of body streamlines, comprises the first detection station 21 and second be arranged on streamline conveying belt 1 and detects station 22 and be symmetrically distributed in the first detecting unit of streamline conveying belt 1 both sides, the second detecting unit, the 3rd detecting unit and the 4th detecting unit.First detecting unit is made up of first group of camera 31 and first group of light source 41, second detecting unit is made up of second group of camera 32 and second group of light source 42,3rd detecting unit is made up of the 3rd group of camera 33 and the 3rd group of light source 43, and the 4th detecting unit is made up of the 4th group of camera 34 and the 4th group of light source 44.
First detecting unit and the second detecting unit distribute about the rotational symmetry that is wired to that two are detected station 21 and 22, and the 3rd detecting unit and the 4th detecting unit distribute about the rotational symmetry that is wired to that two are detected station 21 and 22; First detecting unit detects station 21 with the 4th detecting unit about two and becomes rotational symmetry to distribute with the perpendicular bisector of 22 lines, and the second detecting unit detects station 21 with the 3rd detecting unit about two and becomes rotational symmetry to distribute with the perpendicular bisector of 22 lines; First detecting unit and the 3rd detecting unit detect the mid point distribution in a center of symmetry of station 21 and 22 line about two, and the second detecting unit and the 4th detecting unit detect the mid point distribution in a center of symmetry of station 21 and 22 line about two.
Camera in each detecting unit and light source are positioned at the same side of streamline conveying belt 1, light detecting pattern before forming.Often organize camera to form (provide two in Fig. 2, take body main body and bottle mouth defect respectively) to multiple industrial camera by one, to realize the segmentation details imaging of body, increase imaging definition and resolution.When often organizing camera and adopting multiple industrial camera, guarantee each industrial camera streamline conveying belt 1 projection in the plane overlap.
In the present embodiment, first group of light source, 41, second group of light source 42, the 3rd group of light source 43 and the 4th group of light source 44 are formed by two planar light sources.Gap is provided with between two planar light sources often organized, and the axis of two planar light sources streamline conveying belt 1 the angle that forms of projection be in the plane 5 ~ 10 degree, the optical axis of this folder bisector of angle and corresponding camera streamline conveying belt 1 projection in the plane overlap.
The optical axis of first group of camera, 31, second group of camera 32, the 3rd group of camera 33 and the 4th group of camera 34 streamline conveying belt 1 projection in the plane intersect formation square, and this foursquare diagonal line intersection point overlaps with two line mid points detecting station 21 and 22.First detects optical axis that station 21 is arranged on first group of camera 31 and second group of camera 32 at streamline conveying belt 1 institute projection infall in the plane, the optical axis that the second detection station 22 is arranged on the 3rd group of camera 33 and the 4th group of camera 34 streamline conveying belt 1 projection infall in the plane.
Each detecting unit is responsible for taking a side of body, and four detecting units can whole sides of complete covering body.The camera exposure of each detecting unit is independent controlled for opportunity, and the light source of detecting unit inside triggers and camera exposure action simultaneously, ensures accuracy and the consistance of imaging.
A detection method for light vision inspection apparatus before 360 degree of body streamlines, comprising:
S1, the first detecting unit and the second detecting unit, according to the order of taking pictures preset, are taken pictures to the body that arrival first detects station 21 successively;
S2, the 3rd detecting unit and the 4th detecting unit, according to the order of taking pictures preset, are taken pictures to the body that arrival second detects station 22 successively.
Principle of work of the present invention:
Bottle to be detected transports on streamline conveying belt 1, when running to the first detection station 21, first detecting unit and the second detecting unit can be taken pictures to above-mentioned bottle, because industrial camera is under the cooperation of planar light source, time shutter very short (being generally less than 200 microseconds), so the first detecting unit and the second detecting unit can one in front and one in back to be taken pictures imaging to bottle successively, and bottle apparent position within the time shutter that this is extremely short is motionless (if the speed of streamline conveying belt 1 is 1m/s, then bottle displacement is less than 0.2mm), can ensure that bottle image space is within the field range of industrial camera, and first detecting unit and the second detecting unit imaging be independent of each other.
When bottle runs to the second detection station 22, the 3rd detecting unit and the 4th detecting unit carry out front photo-beat photograph to bottle respectively, and photo opporunity is extremely short, and vial position is substantially constant, and the 3rd detecting unit and the 4th detecting unit do not interfere with each other.So far, four detecting units capture four sides of the bottle on streamline conveying belt 1, follow-uply position discriminance analysis by machine vision algorithm to image again, just can complete the judgement of technique non-defective unit and technique defect ware.
For preventing detecting unit from mutually disturbing, first detects station 21 and the second distance detected between station 22 need be less than most bottle spacing on streamline.Otherwise, have certain probability there will be to correspond to the different light source detecting station to be triggered the possibility lighted simultaneously.This point, is generally realized by prime " separating mechanism " in actual applications, or is realized by the feature of bottle-making machine own.
The above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (8)
1. light vision inspection apparatus before 360 degree of body streamlines, it is characterized in that: this device comprises former and later two detection stations be arranged on streamline conveying belt, be designated as the first detection station and second respectively and detect station, and be arranged on the first detecting unit and the 4th detecting unit, the second detecting unit being arranged on streamline conveying belt opposite side and the 3rd detecting unit of streamline conveying belt the same side; Described first detecting unit is made up of first group of camera and first group of light source, described second detecting unit is made up of second group of camera and second group of light source, described 3rd detecting unit is made up of the 3rd group of camera and the 3rd group of light source, and described 4th detecting unit is made up of the 4th group of camera and the 4th group of light source; Described first detecting unit and the second detecting unit are used for taking pictures to the body that arrival first detects station successively, and described 3rd detecting unit and the 4th detecting unit are used for taking pictures to the body that arrival second detects station successively.
2. light vision inspection apparatus before 360 degree of body streamlines according to claim 1, it is characterized in that: described first group of camera, second group of camera, the optical axis of the 3rd group of camera and the 4th group of camera streamline conveying belt projection in the plane intersect formation square, and described foursquare diagonal line intersection point overlaps with two line mid points detecting station, described first detect optical axis that station is arranged on first group of camera and second group of camera streamline conveying belt projection infall in the plane, described second detect optical axis that station is arranged on the 3rd group of camera and the 4th group of camera streamline conveying belt projection infall in the plane.
3. light vision inspection apparatus before 360 degree of body streamlines according to claim 1, it is characterized in that: described first detecting unit and the second detecting unit distribute about the rotational symmetry that is wired to that two are detected station, described 3rd detecting unit and the 4th detecting unit distribute about the rotational symmetry that is wired to that two are detected station; Described first detecting unit becomes rotational symmetry to distribute with the 4th detecting unit about the perpendicular bisector that two are detected station line, and described second detecting unit becomes rotational symmetry to distribute with the 3rd detecting unit about the perpendicular bisector that two are detected station line.
4. light vision inspection apparatus before 360 degree of body streamlines according to claim 1, is characterized in that: described two distances detected between stations are less than the most bottle spacing on streamline conveying belt.
5. light vision inspection apparatus before 360 degree of body streamlines according to claim 1, is characterized in that: often organize camera and be made up of more than one industrial camera.
6. light vision inspection apparatus before 360 degree of body streamlines according to claim 1, it is characterized in that: often organize light source and form by two planar light sources, gap is provided with between described two planar light sources, and the axis of two planar light sources streamline conveying belt the angle that forms of projection be in the plane 5 ~ 10 degree, the optical axis of described folder bisector of angle and corresponding camera streamline conveying belt projection in the plane overlap.
7. light vision inspection apparatus before 360 degree of body streamlines according to claim 1, is characterized in that: often organize light source and all adopt middle part to offer the arc light source of through hole.
8. the detection method of light vision inspection apparatus before a kind of 360 degree of body streamlines according to claim 1, is characterized in that, comprise the following steps:
(1) described first detecting unit and the second detecting unit are according to the order of taking pictures preset, and take pictures successively to the body that arrival first detects station;
(2) described 3rd detecting unit and the 4th detecting unit are according to the order of taking pictures preset, and take pictures successively to the body that arrival second detects station.
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| CN201510606480.0A CN105158266A (en) | 2015-09-22 | 2015-09-22 | Device and method for 360-degree bottle body production line front-light vision inspection |
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| CN201510606480.0A CN105158266A (en) | 2015-09-22 | 2015-09-22 | Device and method for 360-degree bottle body production line front-light vision inspection |
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Cited By (9)
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| CN107192720A (en) * | 2017-06-01 | 2017-09-22 | 三峡大学 | A kind of intermediate joint of electric cable stripping quality detecting system and detection method |
| CN107525811A (en) * | 2017-08-09 | 2017-12-29 | 爱维迅自动化科技（昆山）有限公司 | A kind of vision inspection apparatus and method, especially Packaging Bottle visible detection method |
| CN108088846A (en) * | 2017-12-07 | 2018-05-29 | 江浩 | Body surface flaw detection method and system |
| CN108195846A (en) * | 2017-12-26 | 2018-06-22 | 成都睿视智能设备有限责任公司 | A kind of image capturing system for detecting plastic containers |
| PL422915A1 (en) * | 2017-09-20 | 2019-03-25 | Konrad Zbigniew Grzeszczyk | Method and the device for complex inspections of glass containers |
| CN110290257A (en) * | 2019-07-09 | 2019-09-27 | 北京邮电大学 | Cell phone rear cover vision-based detection production line |
| CN110530889A (en) * | 2018-05-25 | 2019-12-03 | 上海翌视信息技术有限公司 | A kind of optical detecting method suitable for industrial production line |
| CN110586515A (en) * | 2019-10-28 | 2019-12-20 | 沈阳维特自动化设备有限公司 | Bottle visual inspection conveyor |
| CN113109362A (en) * | 2021-04-28 | 2021-07-13 | 红塔烟草(集团)有限责任公司 | Multi-group lighting backlight-preventing cigarette packet appearance detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107192720A (en) * | 2017-06-01 | 2017-09-22 | 三峡大学 | A kind of intermediate joint of electric cable stripping quality detecting system and detection method |
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| CN108088846A (en) * | 2017-12-07 | 2018-05-29 | 江浩 | Body surface flaw detection method and system |
| CN108195846A (en) * | 2017-12-26 | 2018-06-22 | 成都睿视智能设备有限责任公司 | A kind of image capturing system for detecting plastic containers |
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| CN110290257A (en) * | 2019-07-09 | 2019-09-27 | 北京邮电大学 | Cell phone rear cover vision-based detection production line |
| CN110586515A (en) * | 2019-10-28 | 2019-12-20 | 沈阳维特自动化设备有限公司 | Bottle visual inspection conveyor |
| CN113109362A (en) * | 2021-04-28 | 2021-07-13 | 红塔烟草(集团)有限责任公司 | Multi-group lighting backlight-preventing cigarette packet appearance detection device |
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Application publication date: 20151216 |