CN102489451A - Automatic LED light-splitting and sorting system - Google Patents
Automatic LED light-splitting and sorting system Download PDFInfo
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- CN102489451A CN102489451A CN2011103880989A CN201110388098A CN102489451A CN 102489451 A CN102489451 A CN 102489451A CN 2011103880989 A CN2011103880989 A CN 2011103880989A CN 201110388098 A CN201110388098 A CN 201110388098A CN 102489451 A CN102489451 A CN 102489451A
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Abstract
The invention belongs to the technical field of electronics and specifically to an automatic LED light-splitting and sorting system. The system is characterized by comprising an automatic conveying device, a light-splitting detection system, an automatic sorting system and a CPU control system, wherein the automatic conveying device is connected with the light-splitting detection system, the light-splitting detection system is connected with the automatic sorting system, and the CPU control system is respectively connected with the automatic conveying device, the light-splitting detection system and the automatic sorting system. The invention has the following beneficial effects: automatic rapid conveying of LED lamp beads is realized through a vibratory crew conveyor and a vibratory linear conveyor; through two current driving of a pulsed bidirectional constant current source at opposite direction, detection of light, color and electrical parameters of LEDs randomly entering into an energized clamping device can be finished without changing detection station or polarity; after light-splitting detection, LEDs of different varieties are conveyed to different blanking boxes by an automatic blanking device, thereby realizing automatic sorting; the system has a high degree of automation, simple construction and a fast detection speed.
Description
Technical field
The invention belongs to electronic technology field, be specially a kind of full-automatic LED beam split separation system.
Background technology
LED has that operating voltage is low, luminous efficiency is high, extremely short, photochromic pure, the sound construction of emission response time, stable and reliable for performance, in light weight, series of advantages such as volume is little, cost is low, is widely used in aspects such as large-sized solor shows, state indication, sign illumination, signal demonstration, LCD backlight source, green illumination.Along with the expansion of LED range of application, the user has had higher requirement to the LED product quality, especially requires LED luminosity and wavelength to have uniformity.If the brightness of LED and wavelength do not pass through sorting, make the big screen LED colorful display screen after, can make spectators produce spot or dazzling sensation, have a strong impact on the quality of LED display; On LCD backlight source was used, the inconsistent meeting of LED brightness caused the decline of display effect.Therefore must carry out sorting by luminosity and the wavelength of LED, to improve the quality of LED product.Produce at present to go up and mainly adopt LED photoelectric comprehensive test macro that the LED product is inspected by random samples, can not realize full-automatic 100% beam split detection and the sorting of LED.
Summary of the invention
To the problem that exists in the prior art, the object of the present invention is to provide a kind of technical scheme of full-automatic LED beam split separation system.
Described a kind of full-automatic LED beam split separation system; It is characterized in that comprising automatic conveying device, spectral detection system, automatic sorting system and system control cpu; Automatic conveying device links to each other with spectral detection system; Spectral detection system links to each other with automatic sorting system, and system control cpu links to each other with automatic conveying device, spectral detection system, automatic sorting system respectively.
Described a kind of full-automatic LED beam split separation system; It is characterized in that described automatic conveying device by oscillatory spin conveyer, storage vat, spiral conveying groove, vibration straight line conveyer and uniformly-spaced feeding unit form; Storage vat is equipped with above the oscillatory spin conveyer; Spiral conveying groove is equipped with on the inwall of storage vat, and the outer rim of spiral conveying groove is connected with the vibration straight line conveyer, and the vibration straight line conveyer is provided with the V-type delivery chute;
Described spectral detection system comprises energising clamping device, bidirectional pulse constant-current source and the photochromic electrical quantity comprehensive tester of LED, and the photochromic electrical quantity comprehensive tester of LED mainly is made up of photodetector, fiber spectrometer and I/V tester; Described uniformly-spaced feeding unit connects the energising clamping device; The energising clamping device clamps the LED pin; The bidirectional pulse constant-current source links to each other with LED respectively with the I/V tester; Photodetector links to each other with the integrating sphere that is arranged on energising clamping device top respectively with fiber spectrometer, and photodetector, fiber spectrometer and I/V tester are delivered to system control cpu with detected information respectively, the working method of system control cpu control bidirectional pulse constant-current source;
Described automatic sorting system is cooperated with system control cpu by automatic blanking device, one group of blanking box and forms; System control cpu is fast made differentiation by setting index to classification under the LED according to the photochromic electrical quantity of LED that obtains; And will differentiate object information and pass to automatic blanking device; Automatic blanking device is delivered in the corresponding blanking box LED and counting according to differentiating the result, corresponding two the blanking boxes of each LED classification.
Described a kind of full-automatic LED beam split separation system is characterized in that described spiral conveying groove is a V-type, and the groove face width is greater than LED light head diameter, less than the height of LED, and bonding rubber or the plastic gasket of being provided with on spiral conveying groove.
Described a kind of full-automatic LED beam split separation system is characterized in that described V-type delivery chute lower end is provided with sealing, and seam width is greater than the diameter of the single pin of LED, less than the distance between two pins of LED.
Described a kind of full-automatic LED beam split separation system, it is characterized in that: beam split sorting flow process is following:
1) oscillatory spin conveyer vibration is stored LED in storage vat along the single-row rising of spiral conveying groove that is equipped with on the storage vat inwall, arrive the top after; Fall in the V-arrangement delivery chute of vibration straight line conveyer, and change attitude, pin down; Pipe emits up; The single file arranged vertical, along with the vibration of vibration straight line conveyer, LED is transported to uniformly-spaced feeding unit;
2) uniformly-spaced feeding unit is uniformly-spaced delivered to LED in the energising clamping device of spectral detection system in order; LED two pins that the energising clamping device will uniformly-spaced feed clamp; The bidirectional pulse constant-current source alternately changes the drive current direction LED is driven; During the input forward voltage, measure forward voltage, optical parametric and colorimetric parameter, measure leakage current during the input backward voltage; The photochromic electric spindle comprehensive parameter detector of LED detects luminous intensity, luminous flux, luminous power, distribution curve flux, half-intensity beam angle, brightness, illuminance or other photometric parameter of LED through the photodetector that is connected on the integrating sphere; Through fiber spectrometer LED dominant wavelength, spectral bandwidth, colour temperature, chromaticity coordinates, excitation, colour rendering index or other colorimetric parameter are detected; Through the I/V tester forward voltage, reverse leakage current or other electrical parameter of LED are tested; Above-mentioned beam split testing result is stored in the system control cpu, and real-time update shows in the display screen of system control cpu;
3) according to step 2) in photochromic electric parameters testing result; System control cpu is made differentiation by setting index to classification under the LED fast; And will differentiate object information and pass to automatic blanking device, automatic blanking device is delivered in the corresponding blanking box LED and counting according to differentiating the result, when LED quantity in the blanking box reach set quantity after; Automatically eject and prompting, automatically switch in another blanking box and continue blanking.
Compared with prior art, the present invention has following beneficial effect:
1. through oscillatory spin conveyer and vibration straight line conveyer, realize automatically carrying fast of LED lamp pearl;
2. through twice current drives in the opposite direction in pulse bidirectional constant source; The LED that gets at random in the energising clamping device need not change detection station or polarity; Can accomplish the detection of photochromic electrical quantity, simplify the structure and the operating process of checkout equipment greatly, improve detection speed;
3. beam split detects the different classes of LED in back and is delivered to different blanking boxes through automatic blanking device; Realize sorting; And all corresponding two blanking boxes of each LED classification; Automatically switch to another after a blanking box is filled, can realize not shutting down replacing, guaranteed the continuity of beam split detection and sorting the blanking box;
4. the native system automaticity is high, and simple in structure, detection speed is fast, can realize 100% beam split detection and the sorting of LED lamp pearl.
Description of drawings
Fig. 1 is a structured flowchart of the present invention;
Fig. 2 is the sectional structure sketch map of jigging conveyer;
Fig. 3 is the plan structure sketch map of Fig. 2;
Fig. 4 is the structural representation of spectral detection system;
Among the figure: the 1-automatic conveying device, the 2-spectral detection system, the 3-automatic sorting system, 4-CPU controls system; The 5-display screen, 11-oscillatory spin conveyer, 12-storage vat, 13-spiral conveying groove; 14-vibrates straight line conveyer, the 21-clamping device of switching on, 22-bidirectional pulse constant-current source, 23-integrating sphere; The 24-photodetector, 25-fiber spectrometer, 26-I/V tester.
The specific embodiment
Below in conjunction with Figure of description the present invention is further specified:
A kind of full-automatic LED beam split separation system; Be primarily aimed at straw hat type LED lamp pearl and carry out sorting; Comprise automatic conveying device 1, spectral detection system 2, automatic sorting system 3 and system control cpu 4, automatic conveying device 1 links to each other with spectral detection system 2, and spectral detection system 2 links to each other with automatic sorting system 3; System control cpu 4 links to each other with automatic conveying device 1, spectral detection system 2, automatic sorting system 3 respectively, and beam split testing result real-time update in display screen 5 is shown.
Automatic conveying device 1 by oscillatory spin conveyer 11, storage vat 12, spiral conveying groove 13, vibration straight line conveyer 14 and uniformly-spaced feeding unit form; Storage vat 12 is equipped with above oscillatory spin conveyer 11; Spiral conveying groove 13 is equipped with on the inwall of storage vat 12, and the outer rim of spiral conveying groove 13 is connected with vibration straight line conveyer 14.
Wherein, spiral conveying groove 13 is a V-type, and the groove face width is slightly larger than LED lamp pearl light head diameter, less than LED lamp pearl height; According to actual conditions, can be at spiral conveying groove 13 surface adhesion rubber or plastic gaskets, feeding speed increases with the coefficient of friction of groove face, because the cushioning effect of liner also can reduce the damage of charging basket to LED lamp pearl; Under the constant situation of other conditions, feeding speed is directly proportional with the vibration frequency of storage vat 12, can regulate feeding speed through the vibration frequency of regulating oscillatory spin conveyer 11.
Vibration straight line conveyer 14 is provided with the V-type delivery chute, and V-type delivery chute lower end is provided with sealing, and seam width is greater than the diameter of the single pin of LED, less than the distance between two pins of LED and the maximum gauge of circular light head.Because LED lamp pearl has circular light head and two pins; The diameter of circular light head is 3-8mm; And the diameter of single pin is 0.3-0.5mm, so the bottom sealing distance of V-type groove generally is made as 0.8mm, greater than the diameter of single pin; Less than the distance between two pins and the maximum gauge of circular light head, capable for LED lamp pearl pin vertically inserts.
In the V-type delivery chute of vibration straight line conveyer 14, LED lamp pearl by light head up, pin down, single file column arranges, the unadjusted lamp pearl of attitude can not get into the V-type groove, landing gets into the storage vat 12 again from the side plate of V-type groove.
Automatic sorting system 3 is cooperated by automatic blanking device, one group of blanking box and system control cpu and forms; System control cpu is fast made differentiation by setting index to classification under the LED according to the photochromic electrical quantity of LED that obtains; And will differentiate object information and pass to automatic blanking device, automatic blanking device is delivered in the corresponding blanking box LED and counting according to differentiating the result; The quantity of described blanking box quantity and LED classification is complementary, and in order to realize continuous sorting, the present invention is with corresponding two the blanking boxes of each LED classification; Some conventional indexs that described setting index is LED can according to circumstances be selected.
The flow process of beam split sorting of the present invention is following:
1) along with the vibration of oscillatory spin conveyer 11, store LED in storage vat 12 along the spiral conveying groove 13 single-row risings that are equipped with on storage vat 12 inwalls, arrive the top after; Fall in the V-arrangement delivery chute of vibration straight line conveyer 14, and change attitude, pin down; Pipe emits up; The single file arranged vertical, along with the vibration of vibration straight line conveyer 14, LED is transported to uniformly-spaced feeding unit;
2) uniformly-spaced feeding unit is uniformly-spaced delivered to LED in the energising clamping device 21 of spectral detection system 2 in order; LED two pins that energising clamping device 21 will uniformly-spaced feed clamp; Bidirectional pulse constant-current source 22 alternately changes the drive current direction LED is driven; During the input forward voltage, measure forward voltage, optical parametric and colorimetric parameter, measure leakage current during the input backward voltage; The photochromic electric spindle comprehensive parameter detector of LED detects through luminous intensity, luminous flux, luminous power, distribution curve flux, half-intensity beam angle, brightness, illuminance or other photometric parameter that is connected the 24 couples of LED of photodetector on the integrating sphere 23; Detect through 25 pairs of LED dominant wavelengths of fiber spectrometer, spectral bandwidth, colour temperature, chromaticity coordinates, excitation, colour rendering index or other colorimetric parameter; Forward voltage, reverse leakage current or other electrical parameter through 26 couples of LED of I/V tester are tested; Above-mentioned beam split testing result is stored in the system control cpu 4, and real-time update shows in the display screen 5 of system control cpu 4;
3) according to step 2) in photochromic electric parameters testing result; System control cpu is made differentiation by setting index to classification under the LED fast, and will differentiate object information and pass to automatic blanking device, and automatic blanking device is delivered to LED in the corresponding blanking box and counts according to differentiating the result; After LED quantity in the blanking box reaches setting quantity; Automatically eject and prompting, automatically switch in another blanking box and continue blanking, guarantee the continuity of sorting.
Separation velocity of the present invention is fast, can realize the 100% on-line automatic classification of LED, has improved the uniformity of LED greatly.
Claims (5)
1. full-automatic LED beam split separation system; It is characterized in that comprising automatic conveying device, spectral detection system, automatic sorting system and system control cpu; Automatic conveying device links to each other with spectral detection system; Spectral detection system links to each other with automatic sorting system, and system control cpu links to each other with automatic conveying device, spectral detection system, automatic sorting system respectively.
2. a kind of full-automatic LED beam split separation system according to claim 1; It is characterized in that described automatic conveying device by oscillatory spin conveyer, storage vat, spiral conveying groove, vibration straight line conveyer and uniformly-spaced feeding unit form; Storage vat is equipped with above the oscillatory spin conveyer; Spiral conveying groove is equipped with on the inwall of storage vat, and the outer rim of spiral conveying groove is connected with the vibration straight line conveyer, and the vibration straight line conveyer is provided with the V-type delivery chute;
Described spectral detection system comprises energising clamping device, bidirectional pulse constant-current source and the photochromic electrical quantity comprehensive tester of LED, and the photochromic electrical quantity comprehensive tester of LED mainly is made up of photodetector, fiber spectrometer and I/V tester; Described uniformly-spaced feeding unit connects the energising clamping device; The energising clamping device clamps the LED pin; The bidirectional pulse constant-current source links to each other with LED respectively with the I/V tester; Photodetector links to each other with the integrating sphere that is arranged on energising clamping device top respectively with fiber spectrometer, and photodetector, fiber spectrometer and I/V tester are delivered to system control cpu with detected information respectively, the working method of system control cpu control bidirectional pulse constant-current source;
Described automatic sorting system is cooperated with system control cpu by automatic blanking device, one group of blanking box and forms; System control cpu is fast made differentiation by setting index to classification under the LED according to the photochromic electrical quantity of LED that obtains; And will differentiate object information and pass to automatic blanking device; Automatic blanking device is delivered in the corresponding blanking box LED and counting according to differentiating the result, corresponding two the blanking boxes of each LED classification.
3. a kind of full-automatic LED beam split separation system according to claim 2 is characterized in that described spiral conveying groove is a V-type, and the groove face width is greater than LED light head diameter, less than the height of LED, and bonding rubber or the plastic gasket of being provided with on spiral conveying groove.
4. a kind of full-automatic LED beam split separation system according to claim 2 is characterized in that described V-type delivery chute lower end is provided with sealing, and seam width is greater than the diameter of the single pin of LED, less than the distance between two pins of LED.
5. a kind of full-automatic LED beam split separation system according to claim 2, it is characterized in that: beam split sorting flow process is following:
1) oscillatory spin conveyer vibration is stored LED in storage vat along the single-row rising of spiral conveying groove that is equipped with on the storage vat inwall, arrive the top after; Fall in the V-arrangement delivery chute of vibration straight line conveyer, and change attitude, pin down; Pipe emits up; The single file arranged vertical, along with the vibration of vibration straight line conveyer, LED is transported to uniformly-spaced feeding unit;
2) uniformly-spaced feeding unit is uniformly-spaced delivered to LED in the energising clamping device of spectral detection system in order; LED two pins that the energising clamping device will uniformly-spaced feed clamp; The bidirectional pulse constant-current source alternately changes the drive current direction LED is driven; During the input forward voltage, measure forward voltage, optical parametric and colorimetric parameter, measure leakage current during the input backward voltage; The photochromic electric spindle comprehensive parameter detector of LED detects luminous intensity, luminous flux, luminous power, distribution curve flux, half-intensity beam angle, brightness, illuminance or other photometric parameter of LED through the photodetector that is connected on the integrating sphere; Through fiber spectrometer LED dominant wavelength, spectral bandwidth, colour temperature, chromaticity coordinates, excitation, colour rendering index or other colorimetric parameter are detected; Through the I/V tester forward voltage, reverse leakage current or other electrical parameter of LED are tested; Above-mentioned beam split testing result is stored in the system control cpu, and real-time update shows in the display screen of system control cpu;
3) according to step 2) in photochromic electric parameters testing result; System control cpu is made differentiation by setting index to classification under the LED fast; And will differentiate object information and pass to automatic blanking device, automatic blanking device is delivered in the corresponding blanking box LED and counting according to differentiating the result, when LED quantity in the blanking box reach set quantity after; Automatically eject and prompting, automatically switch in another blanking box and continue blanking.
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| CN113426683A (en) * | 2021-06-04 | 2021-09-24 | 盐城东紫光电科技有限公司 | MiniLED's detection sorting system |
| CN113770063A (en) * | 2021-09-10 | 2021-12-10 | 深圳市华腾半导体设备有限公司 | Light splitting detection device, light splitting machine and detection correction method |
| CN113828547A (en) * | 2021-10-08 | 2021-12-24 | 北京水木东方医用机器人技术创新中心有限公司 | Coaxial light source precision screening system and method |
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Application publication date: 20120613 |