CN105951415A - Light-colored or transparent foreign fiber detection system - Google Patents
Light-colored or transparent foreign fiber detection system Download PDFInfo
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- CN105951415A CN105951415A CN201610579535.8A CN201610579535A CN105951415A CN 105951415 A CN105951415 A CN 105951415A CN 201610579535 A CN201610579535 A CN 201610579535A CN 105951415 A CN105951415 A CN 105951415A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H3/00—Inspecting textile materials
- D06H3/08—Inspecting textile materials by photo-electric or television means
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Abstract
The invention provides a light-colored or transparent foreign fiber detection system. The system comprises an illumination device and an image collection device. The image collection device comprises a line-scan digital camera lens, a line-scan digital camera and a light filtering assembly. The illumination device provides incident light containing cotton and foreign fiber feature wavebands for raw material flows. Light containing the cotton and the foreign fiber feature wavebands can penetrate through the light filtering assembly. The line-scan digital camera receives light obtained filtering of the light filtering assembly and performs imaging. Due to the fact that the spectral absorption characteristics of the cotton and the foreign fiber are different, the gray levels of the cotton and the foreign fiber in a raw material flow image are different; accordingly, the foreign fiber in the raw material flow is detected through the gray levels of the different materials of the raw material flow image. Compared with a detection device based on the color difference of the cotton and the foreign fiber, the system has the better detection effect on light-colored or transparent foreign fiber. In addition, the structure is simple and compact, assembling and using are convenient, and the system is suitable for being additionally arranged on other color sorting equipment.
Description
Technical field
The present invention relates to detection field, particularly relate to a kind of light or transparent foreign fiber detecting system.
Background technology
In harvesting, storage and the acquisition process of raw cotton, it is easy to be mixed into foreign fiber (non-cotton fiber), the opposite sex is fine
Dimension is commonly called as " three " in textile industry, mainly includes polypropylene fiber silk, woven bag, the piece of sack, the colored leftover of bolt of cloth and hair etc..
According to color distinction, foreign fiber can be classified as again two kinds: first kind foreign fiber mostly is color, contrast and structure
Etc. the bigger foreign fiber of aspect and Cotton Gossypii difference；Equations of The Second Kind foreign fiber mostly is from color very difficult separate with Cotton Region
Light or transparent foreign fiber, its chemical composition is usually polypropylene or polyethylene.Foreign fiber is pole in spinning process
Easily break or be divided into shorter, thinner fiber, or be broken into fibrous tiny fault.These faults easily cause spun yarn
Broken end, reduces processing and the production efficiency of gauze.Additionally, after dyeing of weaving cotton cloth, foreign fiber can occur various at cloth cover
Color dot, has a strong impact on the presentation quality of cloth cover, brings about great losses cotton spinning enterprise.At present, textile technology is generally wrapped
Containing scutching cotton operation, scutching cotton operation can remove the most of impurity in raw cotton, but is difficult to thorough for the foreign fiber in raw cotton
The end, removes.And the traditional approach manually picking foreign fiber is not only wasted time and energy, efficiency is low and cleaning effect is unsatisfactory,
Raw cotton still exists part foreign fiber.Therefore, the most effectively detect that in raw cotton, the foreign fiber of residual is to reduce cotton
Spin the task of top priority of enterprise's associated loss.At present, cotton spinning enterprise uses detection device to detect raw cotton material stream (raw material
Stream) in foreign fiber.
With raw cotton, detection device generally treats that checking device matches, jointly complete the detection of foreign fiber.Refer to Fig. 1, treat
Checking device generally includes raw material stream chute 1 and is arranged at the detection window 2 of raw material stream chute sides.Raw material stream can be with
Certain speed moves in raw material stream chute 1, detect device then can by detection window 2 detect in raw material stream different
Property fiber.At present, first kind foreign fiber can pass through CCD (Charge-coupled Device, charge coupled cell)
Camera effectively identifies；Compared with first kind foreign fiber, the detection difficulty of Equations of The Second Kind foreign fiber is relatively big, to detection
The required precision of device is the highest.At present, Equations of The Second Kind foreign fiber mainly uses line array CCD color video camera to detect,
Partly detection equipment is also adopted by photoelectric sensor and ultrasonic detection technology.Wherein, line array CCD color video camera is by adopting
Collection raw material stream picture, and image is carried out color difference analysis to detect the foreign fiber in raw material stream；Photoelectric sense technology is permissible
By the aberration of the reacting condition foreign fiber of photocell current signal Yu Cotton Gossypii, current signal is amplified, process is compared,
Finally may recognize that the foreign fiber in raw material stream；Ultrasonic detection technology is based primarily upon ultrasound wave and keeps straight line in the material
Advance, and the principle of reflection can be occurred to detect the foreign fiber in raw material stream at the intersection of two kinds of different materials.
But, owing to Equations of The Second Kind foreign fiber has the character that color is shallow, it is difficult to separate with Cotton Region from color, therefore,
Line array CCD color video camera and photoelectric sensor are unsatisfactory for the Detection results of Equations of The Second Kind foreign fiber.It addition,
Owing to the transmission speed of ultrasound wave does not has light wave fast, thus the identification to foreign fiber reflects that speed is relatively slow, works as the opposite sex
When the movement velocity of fiber is very fast, it is more likely that having little time to identify, therefore, the effect of ultrasonic detection technology is managed the most not
Think.
Summary of the invention
The present invention provides a kind of light or transparent foreign fiber detecting system, to solve light in prior art or the transparent opposite sex
The technical problem of fiber detection device Detection results difference.
The present invention provides a kind of light or transparent foreign fiber detecting system, and described system includes illuminator and image acquisition
Device, described illuminator is arranged between described image collecting device and raw material stream chute, for in raw material stream chute
Raw material stream provide and include Cotton Gossypii and the incident illumination of foreign fiber characteristic wave bands, and the vertical height of described illuminator is high
In the upper surface of detection window or less than the lower surface of described detection window；
Described image collecting device also includes line-scan digital camera camera lens, for receiving the light through described line-scan digital camera camera lens also
The line-scan digital camera of imaging and be arranged at the filtering assembly between described line-scan digital camera camera lens and described line-scan digital camera, wherein,
Described line-scan digital camera camera lens is towards described detection window, and the optical axis of described line-scan digital camera camera lens and described detection window
Centrage overlap；Described filtering assembly through the characteristic wave bands that wave band is Cotton Gossypii or foreign fiber.
Preferably, described system also includes that spectrum groupware, described spectrum groupware are arranged at described line-scan digital camera camera lens with described
Between filtering assembly.
Preferably, described spectrum groupware is plane spectroscope, and described line-scan digital camera includes that laying respectively at described plane divides
The First Line array camera of light microscopic transmitted light path and the second line-scan digital camera of plane dichroic mirror light path.
Preferably, the angle between described plane spectroscope and described line-scan digital camera camera lens optical axis is 45 °.
Preferably, described filtering assembly includes that the first filtering assembly and the second filtering assembly, described first filtering assembly are arranged
Between described spectrum groupware and described First Line array camera, described second filtering assembly is arranged at described spectrum groupware and institute
State between the second line-scan digital camera.
Preferably, described first filtering assembly through wave band be 1150-1250nm, 1700-1800nm or
2300-2400nm, described second filtering assembly through wave band be 1475-1575nm, 1880-1980nm or
2070-2170nm。
Preferably, described illuminator includes the illumination body of hollow and is arranged at the light sources within described illumination body
Part, described illumination body side is additionally provided with opening, and described opening is towards described detection window.
Preferably, described illuminator also includes that light barrier, described light barrier are covered in described light source assembly and open towards described
On the side of mouth.
Preferably, described light source assembly is evenly distributed multiple Halogen lights.
Preferably, described illuminator is laser line light source.
The technical scheme that embodiments of the invention provide can include following beneficial effect:
Compound is generally made up of multiple groups, and different groups have different direction of vibration and frequency of vibration.When being radiated at
When the frequency of vibration of the group a certain with compound of the incident light frequency on compound surface is consistent, incident illumination then can obvious quilt
Respective compound is absorbed.By the length scanning in full spectral region, the spy of characterization compound absorption characteristic can be obtained
Levy wave band.The detecting system that the present invention provides includes illuminator and image collecting device, and illuminator provides for raw material stream
Including Cotton Gossypii and the incident illumination of foreign fiber characteristic wave bands, incident illumination is radiated on raw material stream surface by detection window,
The Cotton Gossypii being included in incident illumination and the characteristic wave bands of foreign fiber will be absorbed by Cotton Gossypii and foreign fiber respectively, remain ripple
The incident illumination of section enters in line-scan digital camera camera lens after raw material stream reflects, then after the filtration of filtered assembly, through filter
The wave band of optical assembly is only the characteristic wave bands of Cotton Gossypii or foreign fiber, and line-scan digital camera receives the light after filtering assembly filters also
Imaging.From above workflow, if doped with foreign fiber in raw material stream, then foreign fiber is by right with self for absorption
The characteristic wave bands answered, and do not absorb or the less characteristic wave bands absorbing Cotton Gossypii, therefore, when filtering assembly is filtered by line-scan digital camera
During image formation by rays after light, the light no matter filtering assembly passes through is characteristic wave bands or the characteristic wave of foreign fiber of Cotton Gossypii
Section, in raw material stream picture all there is difference in the gray scale of Cotton Gossypii and foreign fiber, thus detects raw material by above gray scale difference
Foreign fiber in stream.Compared with detection device based on Cotton Gossypii and foreign fiber color distinction, native system by Cotton Gossypii and
Foreign fiber in the spectral absorption characteristics detection raw material stream that foreign fiber is unique, has more light or transparent foreign fiber
Good Detection results.Additionally, native system structure is relatively simple, compact, it is simple to assemble and use, and it is suitable for being installed at it
On his color-selection apparatus.
It should be appreciated that it is only exemplary and explanatory that above general description and details hereinafter describe, can not
Limit the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation treating checking device provided in the embodiment of the present invention；
Fig. 2 is the structural representation of a kind of light or transparent foreign fiber detecting system provided in the embodiment of the present invention；
Fig. 3 is the structural representation of a kind of illuminator provided in the embodiment of the present invention；
Fig. 4 is that the another kind provided in the embodiment of the present invention is light or the structural representation of transparent foreign fiber detecting system；
Fig. 5 is the structural representation of the third the light or transparent foreign fiber detecting system provided in the embodiment of the present invention；
Fig. 6 is that the 4th kind provided in the embodiment of the present invention be light or the structural representation of transparent foreign fiber detecting system；
Symbol represents:
1-raw material stream chute, 2-detection window, 3-illuminator, 4-image collecting device, 31-illumination body, 32-light
Source component, 33-opening, 34-light barrier, 41-line-scan digital camera camera lens, 42-line-scan digital camera, 43-filtering assembly, 44-divides
Optical assembly, 421-First Line array camera, 422-the second line-scan digital camera, 431-the first filtering assembly, 432-the second optical filtering group
Part.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to attached
During figure, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Following exemplary is implemented
Embodiment described in example does not represent all embodiments consistent with the present invention.On the contrary, they be only with such as
The example of the device that some aspects that described in detail in appended claims, the present invention are consistent.
Each embodiment in this specification all uses the mode gone forward one by one to describe, identical similar part between each embodiment
Seeing mutually, what each embodiment stressed is the difference with other embodiments.
Refer to Fig. 2, the knot of a kind of light or transparent foreign fiber detecting system provided is provided in the embodiment of the present invention
Structure schematic diagram.
From Figure 2 it can be seen that the light or transparent foreign fiber detecting system that the present embodiment provides includes illuminator 3 and figure
As harvester 4, described illuminator 3 is arranged between described image collecting device 4 and raw material stream chute 1, is used for
There is provided for the raw material stream in raw material stream chute 1 and include Cotton Gossypii and the incident illumination of foreign fiber characteristic wave bands, and described illumination
The vertical height of device 3 upper surface higher than detection window 2 or the lower surface less than described detection window 2.
Cotton Gossypii be mainly composed of cotton fiber, foreign fiber be mainly composed of polyethylene and polypropylene.
Wherein, the structural formula of cotton fiber is:
The structural formula of polyethylene is:
Polyacrylic structural formula is:
From above cotton fiber, polyethylene and polyacrylic structural formula, group in cotton fiber, polyethylene and polypropylene
Kind is different, and the most isoplastic direction of vibration and frequency of vibration are the most different.When the incident optical frequency being radiated on raw material stream surface
Rate is with when in cotton fiber or foreign fiber, the frequency of vibration of a certain group is consistent, then incident illumination can substantially be absorbed, cause through
Cross the reflection light absorbed to significantly reduce, reflection light only comprises sub-fraction relative with cotton fiber or foreign fiber characteristic wave bands
The incident illumination answered.
By the length scanning in full spectral region, sign cotton fiber and the characteristic wave of foreign fiber absorption characteristic can be obtained
Section, wherein, the characteristic wave bands of cotton fiber mainly includes 1475-1575nm, 1880-1980nm and 2070-2170nm, different
The characteristic wave bands of property fiber mainly includes 1150-1250nm, 1700-1800nm and 2300-2400nm.Certainly, above ripple
Section is only the part in cotton fiber or foreign fiber characteristic wave bands, and other can characterize cotton fiber and foreign fiber absorbs spy
The wave band of property can also be the characteristic wave bands of the two.
In the present embodiment, illuminator 3 is diffuse-reflectance cylinder, and diffuse-reflectance cylinder can be provided for raw material stream by detection window 2
Include Cotton Gossypii and the incident illumination of foreign fiber characteristic wave bands, in order to when raw material stream mixes foreign fiber, fine with the opposite sex
The portion of incident light that dimensional feature wave band is corresponding effectively can be absorbed by foreign fiber.
Diffuse-reflectance cylinder is arranged between described image collecting device 4 and raw material stream chute 1, and the vertical height of diffuse-reflectance cylinder
Higher than the upper surface of detection window 2 or less than the lower surface of described detection window 2, say, that diffuse-reflectance cylinder is for former
While stream provides incident illumination, it is impossible to hinder the image collecting device 4 collection to raw material stream reflection light.
Additionally, due to the incident illumination that diffuse-reflectance cylinder improves needs to be irradiated to raw material stream surface, raw material stream through detection window 2
Reflection light reach image collecting device 4 through detection window 2 again, therefore, detection window 2 need cotton fiber and
The characteristic wave bands of foreign fiber has preferable transmitance, its material can be quartz glass or other transmittance preferable
Material.
Additionally, it is generally the case that the degree of scatter of raw material stream is higher, therefore, raw cotton and foreign fiber in raw material stream are equal
Relatively thin, cause the color of background material in detection window 2, composition all the accuracy of detection of foreign fiber can be produced bigger shadow
Ring.In the present embodiment, background material can select politef, and the color of politef is close with Cotton Gossypii, and poly-
The characteristic wave bands of tetrafluoroethene also compares close with cotton fiber, thus uses politef as the background of detection window 2
During material, the detection on foreign fiber affects less.
In the present embodiment, described image collecting device 4 also includes line-scan digital camera camera lens 41, for receiving through described linear array
The light of camera lens 41 line-scan digital camera 42 of imaging and be arranged at described line-scan digital camera camera lens 41 and described linear array phase
Filtering assembly 43 between machine 42.
Line-scan digital camera 42 in the present embodiment, compared with general camera, has higher resolution, is suitable for rapid movement
Raw material stream carry out branch scan and gather image.Owing to the characteristic wave bands of cotton fiber and foreign fiber is positioned at near-infrared ripple more
Section, therefore, in the present embodiment, line-scan digital camera 42 is near infrared ray array camera, corresponding with infrared ray array camera, linear array
Camera lens 41 is near infrared ray array camera camera lens.
In the present embodiment, line-scan digital camera camera lens 41 is towards described detection window 2, and the light of described line-scan digital camera camera lens 41
Axle overlaps with the centrage of described detection window 2.Owing to line-scan digital camera camera lens 41 is towards detection window 2, thus, raw material
The reflection light of stream can pass through detection window 2, enters line-scan digital camera camera lens 41.Simultaneously as line-scan digital camera camera lens 41 is just
Center to detection window 2, thus, the raw material stream reflection light being positioned at detection window 2 centrage both sides can be symmetrical, all
In even entrance camera lens 41, the beneficially line-scan digital camera 42 precise acquisition to raw material stream picture, thus improve this reality
Execute the example accuracy by gradation of image detection foreign fiber.
In the present embodiment, filtering assembly 43 through wave band be 1700-1800nm, 1700-1800nm be foreign fiber
Characteristic wave bands, i.e. foreign fiber have obvious absworption peak in 1700-1800nm wavelength band.When incident illumination is mapped to
During foreign fiber in raw material stream, the light of major part 1700-1800nm wave band can be absorbed by foreign fiber, surplus in incident illumination
The light of repercussions section enters in line-scan digital camera camera lens 41 after raw material stream reflects, then the filtration of filtered assembly 43,
Rear entrance line-scan digital camera 42 is only the light of 1700-1800nm wave band.Now, owing to foreign fiber is to 1700-1800nm ripple
The light of section has significantly absorption, and cotton fiber absorbs the light of fraction 1700-1800nm wave band, therefore, line-scan digital camera
In the 42 raw material stream picture obtained, the gradation of image at foreign fiber is relatively big, and color is dark, the gradation of image at cotton fiber
Less, color is brighter.Therefore, by the difference of gray scale in raw material stream picture, can effectively detect in raw material stream is different
Property fiber.
Refer to Fig. 3, the structural representation of a kind of illuminator provided is provided in the embodiment of the present invention.
As seen from Figure 3, diffuse-reflectance cylinder includes the illumination body 31 of hollow and is arranged at the light source within illumination body 31
Assembly 32, described illumination body 31 side is additionally provided with opening 33, and described opening 33 is towards described detection window 2.
In the present embodiment, the light that light source assembly 32 is launched can pass through opening 33, is irradiated on detection window 2, and then
It is irradiated on raw material stream, provides required incident illumination for raw material stream.Light source assembly 32 is evenly distributed multiple Halogen lights, halogen
Element lamp is all band light source, comprises near infrared band, thus can be that the offer of raw material stream includes Cotton Gossypii and foreign fiber is special
Levy the incident illumination of wave band.It addition, LED has the advantages such as volume is little, life-span length, caloric value are low, thus, at this
In other embodiments bright, light source assembly 32 can also be the LED of multiple infrared band.
In other embodiments of the invention, described illuminator 3 also includes that light barrier 34, described light barrier 34 are covered in institute
State light source assembly 32 towards on the side of described opening 33.Light barrier 34 can be the material with diffuse-reflectance effect, light
The light that source component 32 is launched scatters out through the diffuse-reflectance effect of light barrier 34 again, can improve the uniformity of incident illumination,
Thus reduce the extraneous factor impact on raw material stream picture gray scale, and then improve imaging effect and the native system of line-scan digital camera 42
Accuracy of detection to foreign fiber.Additionally, the inner surface of illumination body 31 can also scribble diffuse-reflectance coating, thus enter one
Step improve raw material stream incident illumination uniformity.
Refer to Fig. 4, show in the embodiment of the present invention another kind provided light or transparent foreign fiber detecting system
Structural representation.From fig. 4, it can be seen that the detecting system that the present embodiment provides includes two illuminators 3, lay respectively at
Above the upper surface of detection window 2 and below the lower surface of detection window 2, two illuminators 3 can be respectively from up and down
Both direction symmetrical illumination detection window 2, uses two illuminators 3 can improve the equal of raw material stream incident illumination further
Even property, and then improve the accuracy that foreign fiber is detected by native system.
Additionally, in other embodiments of the invention, illuminator 3 can also be Cotton Gossypii or the laser of foreign fiber characteristic wave bands
Line source.Cotton Gossypii or the laser of foreign fiber characteristic wave bands, therefore, raw material stream incident illumination is only launched due to laser line light source
Veiling glare less, hot spot concordance is preferable, is conducive to improving the imaging effect of line-scan digital camera 42.Same, the present invention
Can also include the laser line light source of two different-wavebands in the system provided, two laser line light sources are respectively from upper and lower two
Direction symmetrical illumination detection window 2, thus improve the uniformity of raw material stream incident illumination.
Refer to Fig. 5, the third light or transparent foreign fiber detecting system of offer is provided in the embodiment of the present invention
Structural representation.
Cotton fiber or foreign fiber are not big especially for the light absorptive difference of some characteristic wave bands, such as, cotton fiber for
The luminous absorptance of 1475-1575nm wave band is more apparent, but foreign fiber also has portion for the light of 1475-1575nm wave band
Divide and absorb, now, only be then difficult to accurately distinguish raw cotton and foreign fiber by the gray difference of a raw material stream picture.Cause
This, also include in certain embodiments of the invention that spectrum groupware 44, described spectrum groupware 44 are arranged at described line-scan digital camera mirror
Between 41 and described filtering assembly 43, the light in line-scan digital camera camera lens 41 can be divided into two by spectrum groupware 44
Light more than road or two-way, the light imaging in different line-scan digital cameras of each road, eventually through relatively two or more raw material streams
The gray difference of image detects foreign fiber.Spectrum groupware 44 can be semi-transparent semi-reflecting lens, it is also possible to for wavelength selective
Spectroscope, i.e. with certain wavelength as boundary, more than the light transmission of this wavelength, less than the luminous reflectance of this wavelength.
In the present embodiment, spectrum groupware 44 is plane spectroscope, and light can be divided into two-way by plane spectroscope, with
Two-way light is corresponding, and described line-scan digital camera 42 includes the first linear array laying respectively at described plane spectroscope transmitted light path
Camera 421 and the second line-scan digital camera 422 of plane dichroic mirror light path.Described filtering assembly 43 includes the first optical filtering
Assembly 431 and the second filtering assembly 432, described first filtering assembly 431 is arranged at described spectrum groupware 44 and described
Between one line-scan digital camera 421, described second filtering assembly 432 is arranged at described spectrum groupware 44 and described second linear array phase
Between machine 422.
In the present embodiment, the first filtering assembly 431 is 1150-1250nm through wave band, the second filtering assembly 432
It is 1475-1575nm through wave band.Certainly, the first filtering assembly 431 and the second filter described in other embodiments of the invention
Optical assembly 432 through wave band can also be 1700-1800nm, 2300-2400nm, 1880-1980nm or
2070-2170nm。
After spectrum groupware 44 light splitting, the image-forming principle of each light path is similar to above example with the Cleaning Principle of foreign fiber.
In raw material stream picture under the wave band 1150-1250nm that First Line array camera 421 gathers dark, at raw cotton at foreign fiber
Brighter；In raw material stream picture under the wave band 1475-1575nm that second line-scan digital camera 422 gathers dark at raw cotton, the opposite sex
At fiber bright compared with at raw cotton.In above two images, the gray difference of foreign fiber is obvious, thus, different special by contrast
Levy the gray value of raw material stream picture under wave band, the foreign fiber in raw material stream can be more accurately detected out.
It addition, in certain embodiments of the present invention, the folder between plane spectroscope and line-scan digital camera camera lens 41 optical axis
Angle is 45 °, in order to First Line array camera 421 and the second line-scan digital camera 422 can vertically be put, consequently facilitating accurately adjust
Save the field of view angle of two cameras.
Refer to Fig. 6, show in the embodiment of the present invention the 4th kind provided light or transparent foreign fiber detecting system
Structural representation.
As seen from Figure 6, in the present embodiment, spectrum groupware 44 is Rhizoma Sparganii mirror, and light can be divided into three tunnels by Rhizoma Sparganii mirror, with
Three road light are corresponding, and line-scan digital camera 42 includes the first linear array phase being respectively perpendicular to described plane spectroscope light splitting optical path
Machine the 421, second line-scan digital camera 422 and three line scanner camera 423.Filtering assembly 43 include the first filtering assembly 431,
Second filtering assembly 432 and the 3rd filtering assembly 433, described first filtering assembly 431 is arranged at described spectrum groupware 44
With between described First Line array camera 421, described second filtering assembly 432 is arranged at described spectrum groupware 44 and described
Between two line-scan digital cameras 422, described 3rd filtering assembly 433 is arranged at described spectrum groupware 44 and three line scanner camera
Between 423.The present embodiment is applicable to still cannot accurately detect the opposite sex by the gray value of two raw material stream picture of contrast
The situation of fiber, at this point it is possible to separate three road light by Rhizoma Sparganii mirror, is come by the gray value of three raw material stream picture of contrast
Detection foreign fiber.Being similar to, spectrum groupware 44 can also be other light splitting Pedicellus et Pericarpium Trapae mirrors, such as four Pedicellus et Pericarpium Trapae mirrors, more by contrast
Raw material stream picture improve the accuracy of detection further.
Light or the transparent foreign fiber detecting system that the present invention provides, has a preferable Detection results, and simple in construction,
Compact, it is suitable for being installed on other color-selection apparatus.
It should be noted that in this article, such as the relational terms of " first " and " second " or the like be used merely to by
One entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or behaviour
Relation or the order of any this reality is there is between work.And, term " includes ", " comprising " or it is any
Other variants are intended to comprising of nonexcludability so that include the process of a series of key element, method, article or
Equipment not only includes those key elements, but also includes other key elements being not expressly set out, or also includes for this mistake
The key element that journey, method, article or equipment are intrinsic.In the case of there is no more restriction, statement " include one
It is individual ... " key element that limits, it is not excluded that there is also in including the process of described key element, method, article or equipment
Other identical element.
The above is only the detailed description of the invention of the present invention, makes to skilled artisans appreciate that or realize the present invention.
Multiple amendment to these embodiments will be apparent to one skilled in the art, and as defined herein one
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, this
The bright the embodiments shown herein that is not intended to be limited to, and be to fit to and principles disclosed herein and features of novelty
The widest consistent scope.
Claims (10)
1. a light or transparent foreign fiber detecting system, it is characterised in that described system includes illuminator (3)
With image collecting device (4),
Described illuminator (3) is arranged between described image collecting device (4) and raw material stream chute (1), be used for be
Raw material stream in raw material stream chute (1) provides and includes Cotton Gossypii and the incident illumination of foreign fiber characteristic wave bands, and described illumination
The vertical height of device (3) upper surface higher than detection window (2) or the lower surface less than described detection window (2)；
Described image collecting device (4) also includes line-scan digital camera camera lens (41), for receiving through described line-scan digital camera mirror
The head light of (41) the line-scan digital camera (42) of imaging and be arranged at described line-scan digital camera camera lens (41) and described line
Filtering assembly (43) between array camera (42), wherein,
Described line-scan digital camera camera lens (41) is towards described detection window (2), and the light of described line-scan digital camera camera lens (41)
Axle overlaps with the centrage of described detection window (2)；
Described filtering assembly (43) through the characteristic wave bands that wave band is Cotton Gossypii or foreign fiber.
The most according to claim 1 light or transparent foreign fiber detecting system, it is characterised in that described system is also
Including spectrum groupware (44), described spectrum groupware (44) is arranged at described line-scan digital camera camera lens (41) and described optical filtering group
Between part (43).
The most according to claim 2 light or transparent foreign fiber detecting system, it is characterised in that described light splitting group
Part (44) is plane spectroscope, and described line-scan digital camera (42) includes laying respectively at described plane spectroscope transmission light
The First Line array camera (421) on road and second line-scan digital camera (422) of described plane dichroic mirror light path.
The most according to claim 3 light or transparent foreign fiber detecting system, it is characterised in that described plane
Angle between spectroscope and described line-scan digital camera camera lens (41) optical axis is 45 °.
The most according to claim 4 light or transparent foreign fiber detecting system, it is characterised in that described optical filtering group
Part (43) includes the first filtering assembly (431) and the second filtering assembly (432), described first filtering assembly (431)
It is arranged between described spectrum groupware (44) and described First Line array camera (421), described second filtering assembly (432)
It is arranged between described spectrum groupware (44) and described second line-scan digital camera (422).
The most according to claim 5 light or transparent foreign fiber detecting system, it is characterised in that described first filter
Optical assembly (431) is 1150-1250nm, 1700-1800nm or 2300-2400nm through wave band, described second filter
Optical assembly (432) is 1475-1575nm, 1880-1980nm or 2070-2170nm through wave band.
7. according to the light or transparent foreign fiber detecting system described in claim 1-6 any one, it is characterised in that
Described illuminator (3) includes the illumination body (31) of hollow and is arranged at the light that described illumination body (31) is internal
Source component (32), described illumination body (31) side is additionally provided with opening (33), and described opening (33) is towards described inspection
Survey window (2).
The most according to claim 7 light or transparent foreign fiber detecting system, it is characterised in that described illumination fills
Put (3) and also include that light barrier (34), described light barrier (34) are covered in described light source assembly (32) and open towards described
On the side of mouth (33).
The most according to claim 7 light or transparent foreign fiber detecting system, it is characterised in that described light sources
Part (32) is evenly distributed multiple Halogen lights.
10. according to the light or transparent foreign fiber detecting system described in claim 1-6 any one, it is characterised in that
Described illuminator (3) is laser line light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579535.8A CN105951415B (en) | 2016-07-21 | 2016-07-21 | A kind of light color or transparent foreign fiber detection system |
Applications Claiming Priority (1)
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