CN201463835U - Device for detecting size and color difference of mechanism on line - Google Patents
Device for detecting size and color difference of mechanism on line Download PDFInfo
- Publication number
- CN201463835U CN201463835U CN2009201224790U CN200920122479U CN201463835U CN 201463835 U CN201463835 U CN 201463835U CN 2009201224790 U CN2009201224790 U CN 2009201224790U CN 200920122479 U CN200920122479 U CN 200920122479U CN 201463835 U CN201463835 U CN 201463835U
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- bamboo bar
- optoelectronic switch
- line array
- light source
- array ccd
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Abstract
The utility model relates to a device for detecting the size and the color difference of a mechanism on line, mainly comprising a mechanical bracket, photoswitches, standard light sources, liner CCDs, a time sequence driving circuit and a data processing circuit, wherein the photoswitches are arranged at both ends of the mechanical bracket for judging if a bamboo batten to be detected enters or retreats from a detection area; the two pairs of standard light sources and liner CCDs are arranged in the horizontal direction and are respectively arranged at two sides of the bamboo batten for detecting the width and the color difference of two sides of the bamboo batten; a pair of liner CCD and light source are arranged in the vertical direction for detecting the thickness of the bamboo batten; the time sequence driving of the liner CCDs is finished by a CPLD so that the higher online detection speed is achieved; and the data processing circuit converts detection signals of the liner CCDs into control signals and carries out data communication with other peripheral control devices through a 232 interface. The utility model has the advantages of very high measuring accuracy on size and color difference, very high measuring speed, reduced cost of a system, convenient maintenance, simple structure, and the like.
Description
Technical field
The utility model relates to a kind of online mechanical dimension and aberration pick-up unit, whether can be used to online dynamic test, to be used to produce the bamboo bar apparent size of bamboo product consistent with surface chromatic aberration.
Background technology
In the production of many products, raw-material quality has determined the final quality of product, as producing the required bamboo bar of bamboo product etc.If the size of every bamboo bar is inconsistent, irregular colour even, the bamboo product quality of then producing is had a greatly reduced quality certainly.At present, though when raw-material initial processing and dyeing, on machining precision and dyeing batching, it is consistent, but still is difficult to guarantee the whole conformance with standard of the starting material of producing as far as possible, problems such as still surface damage can appear in some bamboo bar, and irregular colour is even.
Present stage, in the factory to the basic employing manual type of selecting of these unacceptable products, there is more deficiency in such detection, at first be to have very big erroneous judgement, everyone eyes are different to the susceptibility of color, simultaneously the color of object also is subjected to the influence of ambient light, and works long hours and can cause the fatigue of eyes, therefore is easy to occur erroneous judgement or omission; The manpower that its less important input is a lot; The 3rd hand inspection has reduced production efficiency and has raised the cost.
Therefore also the someone proposes infrared contactless size and chromatism measurement, makes a general survey of these schemes, though can satisfy high-precision requirement by the well-designed of system, but can't satisfy the bamboo bar producing the streamline speed of per second number on the line meter, reduced production efficiency; Simultaneously because the peripheral circuit more complicated of CCD particularly drives the realization of sequential circuit, therefore cause circuit system complexity, volume bigger, and the dirigibility that debugging is revised is relatively poor.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and provide a kind of can improve bamboo product produce in to the detection efficiency of starting material size and surface chromatic aberration, improve the fiduciary level that detects, online mechanical dimension and the aberration pick-up unit that reduces fraction defective simultaneously.
The utility model proposes a kind of online mechanical dimension and aberration pick-up unit based on CPLD and line array CCD, designed special-purpose physical construction simultaneously, its topmost characteristics are the online non-contact measurement of system, the fast precision height of measuring speed, cost of development is lower and the independent adjustable Design of Mechanical Structure of each parts.
The utility model realizes that by following scheme it mainly is made up of machinery mount, optoelectronic switch, standard sources, line array CCD, sequential driving circuit and data processing circuit; Optoelectronic switch is installed in the two ends of machinery mount, is used for judging whether bamboo bar to be measured enters or withdraw from surveyed area; The surface level direction is furnished with two pairs of line array CCDs and light source, and they lay respectively at the both sides of bamboo bar, is used for detecting the width of bamboo bar and the aberration on two sides; Vertical direction is arranged by a pair of line array CCD and light source, is used for detecting the thickness of bamboo bar; The line array CCD sequential drives and is finished by CPLD, realizes online faster detection speed; Data processing circuit is converted to control signal with the line array CCD detection signal, and carries out data communication by 232 interfaces and other external control device.
Described machinery mount is provided with two cover optoelectronic switch fixed mounts, an optoelectronic switch is installed on each fixed mount, and the bamboo bar is just passed transmitting and receiving between the end of optoelectronic switch, when the bamboo bar when the left side optoelectronic switch enters, system is that start-up routine begins test, when bamboo bar tail end during through the right side optoelectronic switch, system promptly stops test, to realize the automatic start-stop of on-line testing.
The surface level of described machinery mount is provided with standard sources anchor clamps, horizontal stand, horizontal saddle and horizontal circuit boards fixed mount, and respectively form one and overlap light source irradiation and CCD receiving system, the left and right sides of bamboo bar during they are respectively placed on and advance, wherein the standard sources anchor clamps are equipped with as the halogen tungsten lamp light source, and the circuit board that has line array CCD is installed on the horizontal circuit boards fixed mount.
The utility model uses the line array CCD of 2048 picture dots, is used for measuring the bamboo bar of several millimeters width, has very high size and chromatism measurement precision; The CCD sequential drives and is provided by CPLD, therefore has very high measuring speed, makes the gait of march of bamboo bar can reach 5 meter per seconds, can satisfy the streamline speed of present product line fully, adopt CPLD because of sequential drives simultaneously, therefore reduce system cost, and program can revise at any time, and is easy to maintenance.This detection system is as long as change a little, and the size and the aberration that also can be used for paper, cloth etc. detect.
Description of drawings
Fig. 1 is a machinery mount structural representation of the present utility model.
Fig. 2 is bamboo bar direct of travel and concerns synoptic diagram with the position of optoelectronic switch fixed mount when the actual measurement.
Fig. 3 is a test philosophy block diagram of the present utility model.
Embodiment
Having shown in Fig. 1, the horizontal saddle 3 of three cover standard sources anchor clamps 1, two cover horizontal stand, 2, two covers, vertical saddle 4, vertical support frame 5, two cover horizontal circuit boards fixed mounts 6, two cover optoelectronic switch fixed mounts 7, perpendicular circuit board fixed mount 8, two cover rotary connectors 9, center web member 10.
The utility model mainly is made up of machinery mount, optoelectronic switch, standard sources, line array CCD, sequential driving circuit and data processing circuit; Optoelectronic switch is installed in the two ends of machinery mount, is used for judging whether bamboo bar to be measured enters or withdraw from surveyed area; The surface level direction is furnished with two pairs of line array CCDs and light source, and they lay respectively at the both sides of bamboo bar, is used for detecting the width of bamboo bar and the aberration on two sides; Vertical direction is arranged by a pair of line array CCD and light source, is used for detecting the thickness of bamboo bar; The line array CCD sequential drives and is finished by CPLD, realizes online faster detection speed; Data processing circuit is converted to control signal with the line array CCD detection signal, and carries out data communication by 232 interfaces and other external control device.
Described machinery mount is provided with two cover optoelectronic switch fixed mounts, an optoelectronic switch is installed on each fixed mount, and the bamboo bar is just passed transmitting and receiving between the end of optoelectronic switch, when the bamboo bar when the left side optoelectronic switch enters, system is that start-up routine begins test, when bamboo bar tail end during through the right side optoelectronic switch, system promptly stops test, to realize the automatic start-stop of on-line testing.
The surface level of described machinery mount is provided with standard sources anchor clamps 1, horizontal stand 2, level sliding 3 and horizontal circuit boards fixed mount 6, and respectively form one and overlap light source irradiation and CCD receiving system, the left and right sides of bamboo bar during they are respectively placed on and advance, wherein standard sources anchor clamps 1 are equipped with as the halogen tungsten lamp light source, and the circuit board that has line array CCD is installed on the horizontal circuit boards fixed mount 6.
Below in conjunction with accompanying drawing the utility model is described in detail:
Shown in Figure 1, machinery mount is provided with 2 cover optoelectronic switch fixed mounts, be installed in two ends respectively, an optoelectronic switch is installed on each fixed mount, the bamboo bar is just passed transmitting and receiving between the end of optoelectronic switch, when the bamboo bar when the left side optoelectronic switch enters, system is that start-up routine begins test, when bamboo bar tail end during through the right side optoelectronic switch, system promptly stops test, thereby realizes the automatic start-stop of on-line testing; The surface level of machinery mount is provided with standard sources anchor clamps 1, two cover horizontal stands 2, the horizontal saddle 3 of two covers, two cover horizontal circuit boards fixed mounts 6 are also respectively formed a cover light source irradiation and a CCD receiving system, lay respectively at the left and right sides of bamboo bar in advancing, wherein standard sources anchor clamps 1 are installed light source such as halogen tungsten lamp; The circuit board that has line array CCD is installed on the horizontal circuit boards fixed mount 6, but each part of machinery mount is independent regulation all, therefore making the light source of the left and right sides by adjusting is the center line symmetry with the bamboo bar, CCD is the center line symmetry with the bamboo bar equally, and make light source, line array CCD center and bamboo bar are centered close in the same surface level, and the light source of the same side is fallen on the light-sensitive surface of line array CCD after the surface reflection of bamboo bar, the line array CCD of each side can carry out the differentiation of aberration in the intensity of reflected light on bamboo bar surface by detecting the homonymy light source irradiation like this, wherein line array CCD on the surface level can carry out the detection of bamboo bar width to area source by the shade that the bamboo bar is produced by detecting, if the value of chromatism of a bamboo bar is compared above allowed band with established standards with size value, be about to this bamboo bar and be judged to unacceptable product; Perpendicular circuit board fixed mount 8 is used to install the circuit board that a cover has line array CCD, be arranged in the top of the bamboo bar of advancing, the standard sources anchor clamps that light source is installed are positioned at the below of bamboo bar, it is center line symmetry up and down with the bamboo bar that careful adjusting makes light source and line array CCD, line array CCD carries out the measurement of bamboo bar thickness by detecting the below light source by the formed shade of bamboo bar equally, exceed allowed band as comparing, then be judged to unacceptable product with standard value.
Fig. 2 be bamboo bar direct of travel and with the location diagram of optoelectronic switch fixed mount when the actual measurement, the bamboo bar can enter left side optoelectronic switch, i.e. start-up system trace routine after the running roller orientation in measuring system the place ahead.The bamboo bar detects to be finished after the optoelectronic switch on right side flows out and can enter different hoppers according to the result of determination of system, realizes the rejecting of unacceptable product.
Fig. 3 is the system testing theory diagram, light source uniform irradiation after collimating is on the bamboo bar at measured object, the direct light that produces reflected light or be blocked, and be radiated on the photosurface of linear array CDD, the line array CCD device converts the optical information of image on the photosurface to the quantity of electric charge that is directly proportional with light intensity, through the time sequential pulse driven CCD of CPLD with certain frequency, obtain the vision signal of measured piece at the CCD output terminal, whether qualified this output signal make judgement through A/D conversion and through Single Chip Microcomputer (SCM) system, carries out communication through 232 interfaces and other external device (ED)s.
It is the receiving device of the line array CCD of 14 μ m * 14 μ m as size and chromatism measurement that system adopts 2048 picture dots, each pixel dimension, line array CCD is simple in structure, cost is lower, because the number of its single photosensitive unit can be done a lot, therefore its measuring accuracy is higher, and because line array CCD real-time Transmission light-to-current inversion signal and self-scanning speed is fast, frequency response is high can be realized kinetic measurement, and can work under low-light (level).
The peripheral sequential driving circuit more complicated of CCD, as by digital circuit chip design driven circuit, or by Micro Controller Unit (MCU) driving, then circuit can very complicatedly be difficult to satisfy high-speed on-line testing requirement simultaneously.System adopts the complex programmable logic device (CPLD) technology, realizes the sequential of line array CCD is driven, and uses the CPLD construction cycle short, and drive signal is stable, carries out emulation by computing machine earlier after system function module is finished, and comes into operation again, can reduce the design risk.The voltage analog that line array CCD records is converted to digital quantity through A/D, and after MCU handles to judge whether current bamboo bar is certified products
Claims (3)
1. online mechanical dimension and aberration pick-up unit is characterized in that it mainly is made up of machinery mount, optoelectronic switch, standard sources, line array CCD, sequential driving circuit and data processing circuit; Optoelectronic switch is installed in the two ends of machinery mount, is used for judging whether bamboo bar to be measured enters or withdraw from surveyed area; The surface level direction is furnished with two pairs of line array CCDs and light source, and they lay respectively at the both sides of bamboo bar, is used for detecting the width of bamboo bar and the aberration on two sides; Vertical direction is arranged by a pair of line array CCD and light source, is used for detecting the thickness of bamboo bar; The line array CCD sequential drives and is finished by CPLD, realizes online faster detection speed; Data processing circuit is converted to control signal with the line array CCD detection signal, and carries out data communication by 232 interfaces and other external control device.
2. online mechanical dimension according to claim 1 and aberration pick-up unit, it is characterized in that described machinery mount is provided with two cover optoelectronic switch fixed mounts, an optoelectronic switch is installed on each fixed mount, and the bamboo bar is just passed transmitting and receiving between the end of optoelectronic switch, when the bamboo bar when the left side optoelectronic switch enters, system is that start-up routine begins test, when bamboo bar tail end during through the right side optoelectronic switch, system promptly stops test, to realize the automatic start-stop of on-line testing.
3. online mechanical dimension according to claim 1 and 2 and aberration pick-up unit, the surface level that it is characterized in that described machinery mount is provided with standard sources anchor clamps 1, horizontal stand 2, level sliding 3 and horizontal circuit boards fixed mount 6, and respectively form one and overlap light source irradiation and CCD receiving system, the left and right sides of bamboo bar during they are respectively placed on and advance, wherein standard sources anchor clamps 1 are equipped with as the halogen tungsten lamp light source, and the circuit board that has line array CCD is installed on the horizontal circuit boards fixed mount 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201224790U CN201463835U (en) | 2009-06-12 | 2009-06-12 | Device for detecting size and color difference of mechanism on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201224790U CN201463835U (en) | 2009-06-12 | 2009-06-12 | Device for detecting size and color difference of mechanism on line |
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| Publication Number | Publication Date |
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| CN201463835U true CN201463835U (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201224790U Expired - Fee Related CN201463835U (en) | 2009-06-12 | 2009-06-12 | Device for detecting size and color difference of mechanism on line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463747A (en) * | 2010-10-29 | 2012-05-23 | 北大方正集团有限公司 | Variable-data bar code printing method and variable-data bar code printing system |
| CN109520888A (en) * | 2018-12-29 | 2019-03-26 | 浙江理工大学 | A kind of cheese denseness on-line detection device |
-
2009
- 2009-06-12 CN CN2009201224790U patent/CN201463835U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463747A (en) * | 2010-10-29 | 2012-05-23 | 北大方正集团有限公司 | Variable-data bar code printing method and variable-data bar code printing system |
| CN109520888A (en) * | 2018-12-29 | 2019-03-26 | 浙江理工大学 | A kind of cheese denseness on-line detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20100612 |