CN201965096U - Adjustable front light and back light lighting detecting device - Google Patents
Adjustable front light and back light lighting detecting device Download PDFInfo
- Publication number
- CN201965096U CN201965096U CN201120000047XU CN201120000047U CN201965096U CN 201965096 U CN201965096 U CN 201965096U CN 201120000047X U CN201120000047X U CN 201120000047XU CN 201120000047 U CN201120000047 U CN 201120000047U CN 201965096 U CN201965096 U CN 201965096U
- Authority
- CN
- China
- Prior art keywords
- transparent medium
- medium flaggy
- light source
- travelling belt
- backlight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The utility model provides an adjustable front light and back light lighting detecting device, which comprises a video camera, a front light, a back light, a transparent medium plate layer and conveying belts driven by a driving device. The adjustable front light and back light lighting detecting device is characterized in that the conveying belts are shaped as a Chinese character 'ao' through guide wheels, and the conveying belts on the left side and the right side of a notch are at the same level. The transparent medium plate layer is arranged at the position of the notch, and the height of the transparent medium plate layer is consistent with that of the left conveying surface and the right conveying surface of the notch. The video camera is arranged perpendicular to and right above the transparent medium plate layer. The front light is arranged between the video camera and the transparent medium plate layer, and a lighting surface of the front light faces towards a position above the transparent medium plate layer. The back light is arranged under the transparent medium plate layer, and the lighting surface of the back light faces towards the back light arranged under the transparent medium plate layer. The adjustable front light and back light lighting detecting device satisfies requirement for front light lighting detecting and back light lighting detecting during transportation with low cost.
Description
Technical field
The utility model relates to the visual pattern detection range, relates to a kind of pick-up unit that adopts front, back lighting light source more specifically.This type of device is usually used in the defects detection on the smooth faces of cylinder such as bearing, stainless-steel tube.
Background technology
At the visual pattern detection range, detect a products in kind and whether meet design code, need utilize front light source and backlight to obtain positive radiograph and photo backlight (photo backlight highlights the testee profile, help later stage distinguish) usually.
In the prior art, the pick-up unit of this pipelining is to utilize picture pick-up device to transmit in conjunction with product to bring magnanimity to detect each examined product.Owing to relate to positive radiograph and photo backlight, positive light detection and detection backlight two cover detection systems have all been constructed in the pick-up unit usually.
Above-mentioned this structure, there is certain defective in actual applications, at first since in the device positive light and two cover detection systems backlight relatively independent, when so examined product carries out the transition to detection system backlight from positive optical detection system, because the needs of each self-check system are (when image taking, at least pause twice), on transfer rate, there is bottleneck: detect a product and be 0.5-1 second and our detection speed 0.05-0.1 second, the speed that depends on travelling belt can't further improve the detection speed and the efficient of whole streamline like this.
In addition, because this device inside is provided with independently test section of two of positive optical detection system and detection systems backlight, so also more complicated, loaded down with trivial details on the product configurations, cost is also than higher.
Summary of the invention
For overcoming the above shortcoming of traditional detection device, the utility model design a kind of by travelling belt and transparency glass plate (or single face ground glass plate) forms adjustable just, the backlight pick-up unit that throws light on.This device has satisfied in transmission course way demand positive, back side light source detection with low cost method is ingenious, and, can be fit to high speed detection and transmission, improved the detection efficiency of device itself effectively.
The utility model is achieved through the following technical solutions: scheme one: this scheme is fit to require co-altitude turnover, and requires this device of the higher place of detection speed by video camera, front light source, backlight, transparent medium flaggy and can be made up of the travelling belt that drive unit drives; It is characterized in that described travelling belt is built into class " recessed " font by angle sheave, two travelling belts are in same level height about recess, indent be provided with one with the corresponding to transparent medium flaggy of recess left and right sides transmission plane height; Perpendicular to being provided with video camera directly over this transparent medium flaggy; Be mounted with the front light source of illuminated area between described video camera and the transparent medium flaggy towards transparent medium flaggy top; Described transparent medium flaggy positioned beneath has the backlight of illuminated area towards transparent medium flaggy bottom.
In the such scheme, described transparent medium flaggy is lower glass plate of friction factor or the supine single face ground glass of light, and the transfer rate of described travelling belt is 1 meter per second.For the needed speed of the bearing of different size is different, for parallel construction, and fast favourable second travelling belt of sending into of speed, this structure mainly is to advance the problem that co-altitude goes out in order to solve co-altitude.The examined product that transmits on the travelling belt could arrive right travelling belt from left travelling belt through this transparent medium flaggy smoothly like this.
In the such scheme, front light source: the equidirectional light source of relative gamma camera to the measured object irradiation, backlight: the gamma camera opposite direction is from the back side illuminaton of measured object relatively, the color of light source can, commonly used from economic considerations red. for placement location, the front light source need be adjusted according to different bearings, and backlight is as long as be placed on the back side of measured object.
Scheme two: this scheme is fit to the co-altitude turnover, and this scheme is for the speed no requirement (NR), can soon can be slow, and more flexible.
This installs by video camera, front light source, backlight, transparent medium flaggy and can be made up of the travelling belt that drive unit drives; It is characterized in that described travelling belt is built into class " recessed " font by angle sheave, two travelling belt edge direction of transfers from left to right about recess, left travelling belt is higher than right travelling belt; Indent be provided with one be connected about two travelling belts and become the transparent medium flaggy at certain pitch angle with surface level; Perpendicular to being provided with video camera directly over this transparent medium flaggy; Be mounted with the front light source of illuminated area between described video camera and the transparent medium flaggy towards transparent medium flaggy top; Described transparent medium flaggy positioned beneath has the backlight of illuminated area towards transparent medium flaggy bottom.
In the such scheme, described transparent medium flaggy is lower glass plate of friction factor or the supine single face ground glass of light, and the transfer rate of described travelling belt all is fit to from low speed to high speed, adjusts according to on-the-spot actual the requirement.The examined product that transmits on the travelling belt could arrive right travelling belt from left travelling belt through this transparent medium flaggy smoothly like this.
In the such scheme, front light source: the equidirectional light source of relative gamma camera to the measured object irradiation, backlight: the gamma camera opposite direction is from the back side illuminaton of measured object relatively, the color of light source can, commonly used from economic considerations red. for placement location, the front light source need be adjusted according to different bearings, and backlight is as long as be placed on the back side of measured object.
According to above-mentioned two schemes, during described device busy, can select to open front light source or back side light source arbitrarily, perhaps open front light source and back side light source simultaneously.Then, make testee enter tested zone from left travelling belt according to throughput direction, march to the left side travelling belt when terminal because inertia will slip into transparent medium flaggy (glass plate), utilize the low rubbing characteristics and the transparency of glass plate, can continue to move ahead according to inertia after making measured object enter glass plate, and finally enter right travelling belt.
When testee process transparent medium flaggy, if positive light source detection only needs the front light source is opened, at this moment source alignment glass plate top, by way of examined product under the shining upon of this front light source, its product can clearly be filmed by video camera towards the image of that face of video camera.Whether this plane was seized that so just can judge this product exists the defective after the preparation.If back side light source detection, only need backlight is opened, at this moment bottom the source alignment glass plate, because the printing opacity effect of glass plate, the backlight of this moment has become background colour, by way of examined product under the shining upon of this backlight, the overall profile of its product can clearly be filmed (picture of this acquisition will not disturbed by background color, improve vision-based detection result's accuracy) by video camera.So just can judge the defective after whether this product outline exists preparation.
Certainly, above-mentioned positive light source detection and back side light source detection can be carried out simultaneously, this is compared with substep detection in the past, on detection efficiency, be greatly improved, positive in the past light source detection and back side light source detection all are arranged on two detection systems of separating in the flowing water detection system, examined product will pass through these two positive light source detection and back side light source detection system respectively, increase the length of streamline to I haven't seen you for ages like this, the time that examined product is rested on the streamline can be very long, and the utility model is placed on a zone with two kinds of detections and finishes simultaneously, and has satisfied in the transmission course way the front with low cost method, demand in the time of back side light source detection.Can shorten the time that examined product stops like this on streamline, thereby in a disguised form can improve the amount detection of product, improve the detection efficiency in the unit interval, from the speed of software detection, can reach 15 milliseconds 1, but real speed need be decided according to on-site actual situations.
In addition, in the scheme one, because during examined product level process glass plate, need to keep enough speed supports just can make product slide into right travelling belt from left travelling belt, consider from energy-conservation angle, scheme two is by regulating the angle of glass plate, can suitably reduce under the situation of travelling belt transfer rate, the speed of passing through of examined product is reduced, but because glass plate becomes, the later examined product of reduction of speed still can utilize the acceleration of gravity left travelling belt high from the position to be slipped to the low right travelling belt in position.Under the situation that guarantees the detection trouble-free operation, reduced the high energy consumption for keeping travelling belt to run up in the scheme one.And can regulate the height that travelling belt exports as required arbitrarily.
Description of drawings: Fig. 1 is the structure principle chart of the utility model scheme one.
Fig. 2 is the structure principle chart of the utility model scheme two.
Fig. 3 is the structure principle chart of the utility model scheme three.
Mark in the above-mentioned accompanying drawing is expressed as follows: 1 video camera; 2 front light sources; 3 testees; 4 backlights; The supine single face ground glass of 5 glass plates or light; 6 travelling belts.
Embodiment: for technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand,, further set forth the utility model below in conjunction with concrete diagram.
Scheme one as shown in Figure 1, this installs by video camera 1, front light source 2, backlight 4, transparent medium flaggy and can be made up of the travelling belt 6 that drive unit drives; It is characterized in that described travelling belt is built into class " recessed " font by angle sheave, two travelling belts are in same level height about recess, indent be provided with one with the corresponding to transparent medium flaggy of recess left and right sides transmission plane height; Perpendicular to being provided with video camera directly over this transparent medium flaggy; Be mounted with the front light source of illuminated area between described video camera and the transparent medium flaggy towards transparent medium flaggy top; Described transparent medium flaggy positioned beneath has the backlight of illuminated area towards transparent medium flaggy bottom.
In the such scheme, described transparent medium flaggy is lower glass plate of friction factor or the supine single face ground glass 5 of light, and the transfer rate of described travelling belt is 1 meter per second.For the needed speed of the bearing of different size is different, for parallel construction, and fast favourable second travelling belt of sending into of speed, this structure mainly is to advance the problem that co-altitude goes out in order to solve co-altitude.The examined product that transmits on the travelling belt could arrive right travelling belt from left travelling belt through this transparent medium flaggy smoothly like this.
In the such scheme, front light source: the equidirectional light source of relative gamma camera to the measured object irradiation, backlight: the gamma camera opposite direction is from the back side illuminaton of measured object relatively, the color of light source can, commonly used from economic considerations red. for placement location, the front light source need be adjusted according to different bearings, and backlight is as long as be placed on the back side of measured object.
Scheme two as shown in Figure 2, this installs by video camera 1, front light source 2, backlight 4, transparent medium flaggy and can be made up of the travelling belt 6 that drive unit drives; It is characterized in that described travelling belt is built into class " recessed " font by angle sheave, two travelling belt edge direction of transfers from left to right about recess, left travelling belt is higher than right travelling belt; Indent be provided with one be connected about two travelling belts and become the transparent medium flaggy at certain pitch angle with surface level; Perpendicular to being provided with video camera directly over this transparent medium flaggy; Be mounted with the front light source of illuminated area between described video camera and the transparent medium flaggy towards transparent medium flaggy top; Described transparent medium flaggy positioned beneath has the backlight of illuminated area towards transparent medium flaggy bottom.
In the such scheme, described transparent medium flaggy is lower glass plate of friction factor or the supine single face ground glass 5 of light, and the transfer rate of described travelling belt all is fit to from low speed to high speed, adjusts according to on-the-spot actual the requirement.The examined product that transmits on the travelling belt could arrive right travelling belt from left travelling belt through this transparent medium flaggy smoothly like this.
In the such scheme, front light source: the equidirectional light source of relative gamma camera to the measured object irradiation, backlight: the gamma camera opposite direction is from the back side illuminaton of measured object relatively, the color of light source can, commonly used from economic considerations red. for placement location, the front light source need be adjusted according to different bearings, and backlight is as long as be placed on the back side of measured object.
Scheme three as shown in Figure 3, this installs by video camera 1, front light source 2, backlight 4, transparent medium flaggy and can be made up of the travelling belt 6 that drive unit drives; It is characterized in that described travelling belt is built into the low structure of the high end of class one end by angle sheave, left travelling belt is higher than right travelling belt; Travelling belt top be provided with one be connected about two travelling belts and become the transparent medium flaggy at certain pitch angle with surface level; Perpendicular to being provided with video camera directly over this transparent medium flaggy; Be mounted with the front light source of illuminated area between described video camera and the transparent medium flaggy towards transparent medium flaggy top; Described transparent medium flaggy positioned beneath has the backlight of illuminated area towards transparent medium flaggy bottom.All the other are with embodiment 2.
The utility model device that makes up according to such scheme has satisfied in the transmission course way demand positive, back side light source detection with low cost method is ingenious, and, owing to need not to change the movement locus of testee when making backlight the detection, this device has possessed the advantage that is beyond one's reach of rotating disc type detection backlight in the past: the efficient of vision-based detection is not subjected to the restriction of the running speed of travelling belt, is fit to very much high speed detection and transmission.In addition, as long as suitably adjust the angle of glass plate, guarantee that testee can slide into the travelling belt endpiece from glass plate by enough speed ground, can regulate the height of travelling belt outlet as required arbitrarily.
Also can change the speed that measured object passes through by the angle of regulating glass plate, convenient, flexible.Tested device has adopted transparency glass plate as carrier when utilizing the utility model device to detect, and the picture of acquisition will not disturbed by background color, improves vision-based detection result's accuracy.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
- One kind adjustable just, backlight illumination pick-up unit, this device is by video camera, front light source, backlight, transparent medium flaggy and can be made up of the travelling belt that drive unit drives; It is characterized in that described travelling belt is built into class " recessed " font by angle sheave, two travelling belts are in same level height about recess, indent be provided with one with the corresponding to transparent medium flaggy of recess left and right sides transmission plane height; Perpendicular to being provided with video camera directly over this transparent medium flaggy; Be mounted with the front light source of illuminated area between described video camera and the transparent medium flaggy towards transparent medium flaggy top; Described transparent medium flaggy positioned beneath has the backlight of illuminated area towards transparent medium flaggy bottom.
- 2. according to claim 1 a kind of adjustable just, backlight illumination pick-up unit, it is characterized in that described transparent medium flaggy is lower glass plate of friction factor or the supine single face ground glass of light.
- 3. according to claim 1 a kind of adjustable just, backlight illumination pick-up unit, it is characterized in that described front light source is: the equidirectional light source of gamma camera relatively to the measured object irradiation; Described backlight is: the gamma camera opposite direction is from the light source of the back side illuminaton of measured object relatively.
- 4. another kind of adjustable just, backlight illumination pick-up unit, this device is by video camera, front light source, backlight, transparent medium flaggy and can be made up of the travelling belt that drive unit drives; It is characterized in that described travelling belt is built into class " recessed " font by angle sheave, two travelling belt edge direction of transfers from left to right about recess, left travelling belt is higher than right travelling belt; Indent be provided with one be connected about two travelling belts and become the transparent medium flaggy at certain pitch angle with surface level; Perpendicular to being provided with video camera directly over this transparent medium flaggy; Be mounted with the front light source of illuminated area between described video camera and the transparent medium flaggy towards transparent medium flaggy top; Described transparent medium flaggy positioned beneath has the backlight of illuminated area towards transparent medium flaggy bottom.
- 5. another kind according to claim 4 is adjustable just, backlight illumination pick-up unit, it is characterized in that described transparent medium flaggy is lower glass plate of friction factor or the supine single face ground glass of light.
- 6. according to claim 4 a kind of adjustable just, backlight illumination pick-up unit, it is characterized in that described front light source is: the equidirectional light source of gamma camera relatively to the measured object irradiation; Described backlight is: the gamma camera opposite direction is from the light source of the back side illuminaton of measured object relatively.
- 7. another is adjustable just, backlight illumination pick-up unit, and this device is by video camera, front light source, backlight, transparent medium flaggy and can be made up of the travelling belt that drive unit drives; It is characterized in that described travelling belt is built into the low structure of the high end of class one end by angle sheave, left travelling belt is higher than right travelling belt; Travelling belt top be provided with one be connected about two travelling belts and become the transparent medium flaggy at certain pitch angle with surface level; Perpendicular to being provided with video camera directly over this transparent medium flaggy; Be mounted with the front light source of illuminated area between described video camera and the transparent medium flaggy towards transparent medium flaggy top; Described transparent medium flaggy positioned beneath has the backlight of illuminated area towards transparent medium flaggy bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120000047XU CN201965096U (en) | 2011-01-01 | 2011-01-01 | Adjustable front light and back light lighting detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120000047XU CN201965096U (en) | 2011-01-01 | 2011-01-01 | Adjustable front light and back light lighting detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201965096U true CN201965096U (en) | 2011-09-07 |
Family
ID=44527642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120000047XU Expired - Fee Related CN201965096U (en) | 2011-01-01 | 2011-01-01 | Adjustable front light and back light lighting detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201965096U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141525A (en) * | 2011-01-01 | 2011-08-03 | 上海创波光电科技有限公司 | Adjustable lighting detection device for front and back light sources |
| CN111443093A (en) * | 2020-04-23 | 2020-07-24 | 北京大恒图像视觉有限公司 | Transparent container detection device and detection method |
| CN112881417A (en) * | 2021-03-24 | 2021-06-01 | 深圳联钜自控科技有限公司 | Metal tube visual detection device |
| CN114313787A (en) * | 2022-01-12 | 2022-04-12 | 迅得机械（东莞）有限公司 | Non-contact material positioning and conveying device for light-transmitting belt |
-
2011
- 2011-01-01 CN CN201120000047XU patent/CN201965096U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141525A (en) * | 2011-01-01 | 2011-08-03 | 上海创波光电科技有限公司 | Adjustable lighting detection device for front and back light sources |
| CN111443093A (en) * | 2020-04-23 | 2020-07-24 | 北京大恒图像视觉有限公司 | Transparent container detection device and detection method |
| CN111443093B (en) * | 2020-04-23 | 2023-10-13 | 北京大恒图像视觉有限公司 | Transparent container detection device and detection method |
| CN112881417A (en) * | 2021-03-24 | 2021-06-01 | 深圳联钜自控科技有限公司 | Metal tube visual detection device |
| CN114313787A (en) * | 2022-01-12 | 2022-04-12 | 迅得机械（东莞）有限公司 | Non-contact material positioning and conveying device for light-transmitting belt |
| CN114313787B (en) * | 2022-01-12 | 2024-05-17 | 迅得机械（东莞）有限公司 | Non-contact type material positioning and conveying device for light-transmitting belt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102141525A (en) | Adjustable lighting detection device for front and back light sources | |
| CN201965096U (en) | Adjustable front light and back light lighting detecting device | |
| CN103480585A (en) | Fully-automatic tracking appearance inspection equipment | |
| CN104101608A (en) | Intelligent detecting device for detecting defects of multi-type irregularly shaped product | |
| CN101518949A (en) | Adhesive film position detector and adhesive film joining apparatus | |
| CN105044336A (en) | Multi-channel detecting instrument | |
| CN102489451A (en) | Automatic LED light-splitting and sorting system | |
| CN106645184A (en) | Machine vision device for detecting surface defects of cylindrical workpiece and detection method | |
| CN107244461A (en) | Full-automatic vision detects baling line | |
| CN209764744U (en) | Visual inspection equipment for pharmaceutical packaging | |
| CN206208757U (en) | A kind of prestressed glass cubing | |
| CN203578237U (en) | Full-automatic heel wire appearance detection equipment | |
| CN202316339U (en) | Fully-automatic LED (Light Emitting Diode) light-splitting and sorting system | |
| CN208513101U (en) | A kind of two-sided vision-based detection mango grading plant | |
| CN209456056U (en) | A kind of trailing type filling mechanism | |
| WO2021114685A1 (en) | Card issuing machine and card issuing method | |
| CN207881650U (en) | A kind of glass contours size detecting system | |
| CN204287064U (en) | Based on the bottle-packed liquid foreign body detection device of reflected light path design | |
| CN205301202U (en) | Printed matter visual inspection device | |
| CN209117368U (en) | A kind of tire footprint measuring device | |
| CN207215019U (en) | A kind of detection means for analyzing lamp bead filament | |
| CN106153640A (en) | The omnidirectional images of a kind of transparent object obtains system and method | |
| CN208984513U (en) | For detecting the image capturing system of transparent substrate defect | |
| CN209858420U (en) | Coated glass color detection mechanism | |
| CN205002732U (en) | Motor shaft screw thread size optics automatic measure machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20150101 |
|
| EXPY | Termination of patent right or utility model |