CN101619537A - Apparatus for detection of foreign matter in plastic material in spinning room preparation, ginning or the like installation - Google Patents
Apparatus for detection of foreign matter in plastic material in spinning room preparation, ginning or the like installation Download PDFInfo
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- CN101619537A CN101619537A CN200910203140.8A CN200910203140A CN101619537A CN 101619537 A CN101619537 A CN 101619537A CN 200910203140 A CN200910203140 A CN 200910203140A CN 101619537 A CN101619537 A CN 101619537A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
- G01N21/8915—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined non-woven textile material
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
- D01G31/003—Detection and removal of impurities
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/21—Polarisation-affecting properties
- G01N2021/216—Polarisation-affecting properties using circular polarised light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/21—Polarisation-affecting properties
- G01N2021/217—Measuring depolarisation or comparing polarised and depolarised parts of light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/21—Polarisation-affecting properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
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- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The present invention relates to an apparatus in a spinning room preparation, ginning or the like installation for detection of foreign objects of plastics material, such as polypropylene, weaving plastic, plastic sheet and the like, in or between a stream of fibre material, especially cotton. In the apparatus, the foreign objects in or between the stream of fibre material are arranged to be penetrated by a polarised light source cooperating with a detector, preferably a camera, weak color and/or transparent foreign objects are penetrated, and the light from another light source is applied on the stream of the fibre material. For effectively detecting the white and/or transparent plastic material sheets by a simple structure, the foreign objects in or between the stream of the fibre material are arranged to be illuminated by an ultraviolet light source or reflected light, and the ultraviolet light source cooperates with the detector, wherein the detector is capable of detecting the penetrated and illuminated foreign objects and separating them from the fibre material.
Description
Technical field
The present invention relates between a kind of fabaric mterial flow of in spinning room preparation, ginning etc., installing that is used for test example such as cotton or among such as the equipment of plastic material foreign matters such as polypropylene, woven plastics and plastic sheet, wherein between the fibrous material or among foreign matter can be by being subjected to transillumination (transmitted light) with the crew-served polarized light source of detector means (camera), light and/or transparent foreign matter is by transillumination, and from the light action in another source on fabaric mterial flow.
Background technology
The problem that influence is used for the operation of the optical function external fiber of spinning room preparation machine of cotton or synthetic fiber and foreign matter separator is: because plastics these light color or transparent (for example, polyethylene or polyacrylic packaging film or packing fiber) the low optical contrast, can not detect fully or can not detect them fully.
Be used for detecting in the situation of the known device (EP 0545129B) of the polypropylene fibre of volume, relatively two images.An image is by producing with the polarised light transillumination; Another image produces by carry out transillumination with white light.Material must have the form that is oriented substantially parallel silk fiber.Evaluation process need compare two images.In order to make two images can arrive register, under the situation of synchronized movement below two checkpoints, material transmits on conveyer belt.This patent description a kind of equipment of only using a camera operation.Yet, must form two images (form with polarised light and another forms with white light).For this reason, illuminator is connected in succession, so that can only take two images with a camera.Yet, to do like this and must interrupt the motion of material, scan operation takes place in succession and the silk fiber volume advances gradually.The structure of this equipment is expensive.Especially inconvenient is to switch illuminator, discontinuous transferring material and take two images.Another significant disadvantage is to use the polarised light of transillumination can not recognize these packaging material and plastic wastes, for example can not detect intensive or thick packing chip.Similarly, the plastic type that does not change the polarization polarized state of light of transillumination is undetectable.
Summary of the invention
Therefore the present invention solves provides a kind of problem at the equipment that begins described type, and it can avoid above-mentioned shortcoming, and especially allows to detect effectively white and/or transparent sheet of plastics material in configuration aspects in simple mode.
Can address the above problem by the characteristic of claim 1.
According to the present invention, utilize the detection of polarised light to combine with the detection that utilizes UV light, needn't be arranged to double such as the basic components of camera, inspection chamber, glazing channel or evaluation means, and two detection methods of not interfering mutually.This is arranged in concentrates necessary parts and therefore saves installing space in the minimum space.Be used in combination different wavelength (visible light/UV light) and different polarization states (polarization/unpolarized).Because only take image rather than two images that two light sources of a usefulness shine simultaneously, save and switch illuminator and discontinuous transferring material.Another advantage is to realize irradiation and Image Acquisition simultaneously, thereby at first makes the convergence can not occur two compositions subsequently, and can not obtain and cause temporal resolution to reduce owing to dual image.According to the present invention, realized unpolarized irradiation (not having the visible spectrum composition) (reverberation irradiation) and with visible polarisation of light transillumination (transmitted light).By this combination, the image that formation can be caught by camera and do not have switching/flash of light on the illuminator; Thereby this image also comprises two kinds of effects by changing polarization state and passing through fluorescence.Also can in fibrous material, detect like this, even with undetectable packaging material of polarised light and plastic wastes.Under the situation of some synthetic fiber, and under the situation of the plastic material of being made by Optical Bleaching Agent, the UV light of radiation changes into visible wavelength by fluorescent effect.So this can detect by normal camera arrangement.Camera is insensitive to the UV light of radiation.Only when changing into visible light by fluorescent effect, can realize UV light detecting.Therefore can successfully detect the plastics foreign matter of utmost point broad variety.In addition, also can detect the plastics kind that do not change the polarization polarized state of light that passes through or intensive or thick plastics chip.
Description of drawings
The below will explain the present invention by specific embodiment shown in the drawings, wherein:
Fig. 1 illustrate that foreign matter detects and separator on have the horizontal transport passage according to equipment of the present invention;
Fig. 2 illustrate that foreign matter detects and separator on be useful on polarized incident light and the catoptrical illuminator of UV, vertically transmission channel and directly sight line camera according to equipment of the present invention;
Fig. 3 illustrates as the equipment among Fig. 2, but has the camera of sight line deflection;
Fig. 4 illustrates the structure with two checkout gears;
Fig. 5 illustrates the side view of the equipment with the lighting device that is used for polarized incident light and glazing channel with diagram method;
Fig. 6 is the plane with the system that blows out of a plurality of air nozzles of arranging on width;
Fig. 7 is the block diagram of Electronic Control and adjusting device, and two sensing systems and two blow out system and are connected to described Electronic Control and adjusting device;
Fig. 8 be illustrated in four roller descaling machine downstreams according to equipment of the present invention;
Fig. 9 be illustrated in a roller descaling machine downstream according to equipment of the present invention; And
Figure 10 illustrate that foreign matter detects and separator on have vertical transmission channel according to device of the present invention.
The specific embodiment
With reference to Fig. 1, be used for detecting equipment with segregating foreign objects at the external part separator SECUROMATSP-FP of for example Tr ü tzschler, the upper inlet of feed well 1 links with the layout that is used for pneumatic delivery of fibers air current A, and described layout comprises fibrous material transmission fan (not shown), utilize to bleed and fibrous material B is separated ventilative surperficial 2 and the airflow guidance device 3 with moveable element fixed of (discharges) from air C; By lateral steering back and forth reversibly, and after impacting, fibrous material is because gravity falls and enter feed well 1 downwards from ventilative surperficial 2 to the fibrous material that exists in the air-flow substantially on ventilative surperficial 2. Low speed roller 4a, 4b have dual-use function: they are used as the taking-up roller that makes fibrous material B leave feed well 1, and simultaneously as the donor rollers that fibrous material B is fed to high speed opening roller 5.Solid arrow is represented fibrous material, and hollow arrow is represented air, and partly fills the air-flow that arrow represents to have fiber.
(for example, the multi-color cord smear camera) optical sensor system 6 is arranged in the top of opening roller 5 obliquely, near the outer wall of feed well 1 to have camera.Produce the structure in compact saving space like this.Multi-color cord smear camera 6 point to opening rollers 5 card clothing and can the detection fibers material in coloured foreign matter (for example, red fiber).Camera 6 covers the whole zone of crossing opening roller 5 width, and described width for example is 1600mm.Opening roller 5 is rotated counterclockwise along the direction of curved arrow.Is the layout 7 that is used to produce gaseous blast along direction of rotation in the downstream of optical sensor system 6, and the nozzle of described layout 7 is towards the card clothing face orientation of opening roller 5, so that the air of of short duration and unexpected injection is tangentially flowed with respect to the card clothing face.Sensing system 6 is connected to by apparatus for evaluating and Electronic Control and adjusting device and arranges 7, and described layout 7 links with control valve device 8.When camera 6 uses relatively and detect foreign matter in the fibrous material of desired value on the card clothing face, use control valve device 8 of short duration jet to penetrate at a high speed with respect to card clothing, this is jet to pull foreign matter and a few fibres by suction airstream from the fiber cover on the card clothing, and by path 10 they is taken away under swabbing action subsequently.
Gaseous blast roughly becomes tangentially to flow through passage with opening roller 5, flow to glazing channel 17 from card clothing defibre covering (good fiber) and as fibrous airstream D by fiber transmission pipeline 11.
Be used to detect under the situation of foreign matter at equipment 12, fibrous material transmits in air-flow (fibrous airstream D) by Pneumatic fiber transmission pipeline 11, and described Pneumatic fiber transmission pipeline 11 is connected to the suction source (not shown).As optical sensor system, two camera 13a, 13b (for example, having the diode array camera of polarizing filter) are arranged in above fiber transmission pipeline 11 in the shell 14 across machine-wide, and described width for example is 1600mm.In camera 13a, 13b (camera 13a only is shown) below, the wall of fiber transmission pipeline 11 has two transparent regions, the form of described two transparent regions is two parallel and relative glass blocks 17a, 17b (windowpane), and described two glass blocks 17a, 17b form glazing channel 17.As polarized light source, lighting device 18 is arranged on fiber transmission pipeline 11 belows.As ultraviolet (UV) light source, another lighting device 43 is arranged on fiber transmission pipeline 11 tops.In the downstream of glazing channel 17, the blowing out device 19 that is used to separate by equipment 12 detected foreign matters 34 links with fiber transmission pipeline 11.In the downstream of blowing out device 19, fibrous airstream D is sucked and supplies with forward to be used for further processing by fiber transmission pipeline 11.
In operation, camera 13 is by glass blocks 17a detection fibers air-flow D.Here, glass blocks 17a is projected among the fibrous airstream D in the following manner: fibrous airstream D runs into glass blocks 17a, and flows and exert pressure with it along glass blocks 17a and contact.Motion by fibrous airstream D, avoid on the one hand the deposit very not expecting or do not expect fully on the glass blocks 17a, if and produced a spot of deposit really, then they will be wiped and take away by passage 11 from the inner surface of glass blocks 17a by fibrous airstream D.Fibrous airstream D has similar effects on the inner surface of glass blocks 17b.
If the foreign matter of not expecting 34 is detected by equipment 12 in fibrous airstream D, then blowing out device 19 is activated and foreign matter 34 is blown in the suction channel 20.
As shown in Figure 2, the light of light source 18 (being fluorescent tube here) changes into polarised light via polarizing filter 28 and enters in the inspection area by glass blocks 17a.This inspection area is that the skewed slot by rectangular cross section forms in this example, and fibrous material 40 is guided through the checkpoint by described skewed slot.The direction of transfer of material here is from the top to the bottom.(can be applied in a similar manner among the embodiment according to Fig. 1) with horizontal channel 11 according to the embodiment of Fig. 2 and 3. Glass blocks 17a, 17b tilt slightly to material stream D, are self-cleanings so that make the surface.Polarised light finally arrives camera 13 by the inspection area and via the second glass blocks 17b, and described camera 13 also is equipped with the polarizing filter 42 as analyzer.This has stoped all incidents, the unaltered polarised light of light source 18, so that produce dark image completely.In addition, observation ward is by light source 43 (four UV fluorescent tubes the form light source here) irradiation of radiation ultraviolet light.Arbitrary wavelength components in these light source 43 non-radiating visible ranges is not so that only trigger camera 13 to the visible range sensitivity of spectrum.This is by the suitable optical light filter in the light source self (being known as black light) or by realizing at the extra filter of light source arranged in front.If necessary, then the sensor of camera 13 or camera 13 must be furnished with another filter 44 that stops UV light, so that make camera insensitive in the UV wave-length coverage.
Because it was not only insensitive but also insensitive to UV light to polarised light to have the camera 13 of analyzer 42, it will under normal circumstances write down dark image.If fibrous material 40 is arranged in inspection chamber now, then polarised light passes through this fibrous material 40, and fibrous material 40 is penetrated by UV illumination.Polarised light is not changed by fibrous material 40, and dark image exists.UV light is not changed by fibrous material 40 yet.Because camera 13 is insensitive in this wave-length coverage, so there is not record to reflect back into the UV light of camera 13.Dark image exists.Yet, if but in inspection chamber, there is the foreign matter 34 (for example, the strap of polypropylene or polyethylene sheets) of transillumination, these foreign matters change polarization polarized state of lights.This light now can be by camera 13 analyzer 42 and thereby guarantee that camera is triggered, this by assessment unit 38 record that is connected to camera and for example by downstream separation unit (blowing out device 19 is referring to Fig. 1 and 6) use with from passage 41 these foreign matters 34 of discharge.Can not (for example, the intensive packing chip of plastic material under) the situation, there be polarised light to arrive camera 13 by transillumination at foreign matter 34 by foreign matter.Instead, the UV light of radiation changes into the light of visible wavelength by fluorescent effect, and described fluorescent effect can be observed in the situation of the many packaging material that are provided with Optical Bleaching Agent.This light can be only by the filter 44 that stops UV and thereby trigger camera 13, then by assessment unit 38 records that connect.
Fig. 3 illustrates similar arrangements, and wherein the sight line 45 of camera passes through mirror 46 deflections to reduce the installing space that needs.
For the major path width, may be favourable across the some checkout equipments of working width distribution, so that make each checkout equipment only be responsible for one section passage 41 according to Fig. 2.Yet, here also can be by only a detector and every section assessment unit are realized two kinds of testing processes.
Fig. 4 shows from material direction of transfer D the resulting layout of direction of observation when vertical with paper plane, and wherein plurality of detection equipment 47
IWith 47
IIArrange abreast, so that cover big working width.Each equipment 47
IWith 47
IIAll be responsible for equally discretely by sensing system 13 only separately detecting and detecting the two with UV light with polarised light.In this example, illuminator 18 and 43 is divided into multistage, but realizes by a continuous member.Similarly, divide the assessment unit task each section can be further combined with to form an assessment unit 38
I
As shown in Figure 5, be provided with holding device 21, it comprises four hollow profile 21a of extruded aluminium, 21b, 21c, 21d (maintenance profile), described four profiles are (across the machine-wide) layout that is parallel to each other along the longitudinal direction, and each free their front surface is fixed to two frame wall (not shown) of machine.As example, on extruding profile 21a, set bolt 22 has been shown. Inner plane 21
I, 21
II, 21
III, 21
IVForm the part of the interior perimeter surface of fiber transmission pipeline 11 and pipeline 41 respectively.One side face 21
IWith 21
IIThe layout that is parallel to each other, and face 21 on the other hand
IIIWith 21
IVLayout is parallel to each other.The concave surface that the transverse area of facing mutually of extruding profile 21a to 21d all has the form of a circular cylindrical shell part separately.Be arranged between four faces of drum surface part form along the direction of arrow G, H around the rotatable shell 23 of its longitudinal axis M and be in contact with it.Shell 23 comprises the supporting member 24 (support profile) of two the hollow profile 24a of extruded aluminium, 24b, and the cross section of described profile 24a, 24b all is configured to the part of cylinder separately.The exterior contour of shell 23 is circular.The outer surface of the protrusion circle of support profile 24a, 24b is that maintenance profile 21a, the 21b of a circular cylindrical shell part and the face of 21c, 21d engage with recessed circular and form respectively.Be furnished with flat glass blocks 17a and 17b respectively in the flat string face of support profile 24a, 24b, the outer surface of described string face and glass blocks 17a, 17b is aimed at mutually.Each free string face and formed by this way two the relative faces of glass blocks 17a, 17b form the part of fiber transmission pipeline 11 and pipeline 41 respectively, and described part narrows down along the direction of fibrous airstream D.Two relative faces of glass blocks 17a, 17b form glazing channel 17, and described glazing channel 17 equally coning is tapered along the direction of fibrous airstream D.By face 21
IWith 21
IIFormed forms little acute angle (acute and shallow angle) α with face by string face and the formed supporting member 24a of glass blocks 17a
I, and by face 21
IIIWith 21
IVFormed forms little sharp angle with face by string face and the formed support profile 24b of glass blocks 17b
IIThe face that all comprises the string face and the tapered convergence of two relative faces of corresponding glass piece 17a, 17b separately forms angle β.
Lighting device 18 (being used for polarization transmission light) is arranged on shell 23 belows that are used for glazing channel 17, and this lighting device 18 has the shell 25 that is installed in the guide channel that keeps on profile 21c, the 21d and extends width across machine.In shell 25 inside, arrange abreast side by side and extend working width across machine along their longitudinal axis such as two fluorescent tubes 26,27 of neon tube.Shell 25 is the hollow profiles of aluminium extrusion with cooling fin 25a.Have the microscler glass blocks 28a of polarizing filter, the end face 25b of shell 25 that 28b is installed in to be faced with the shell 23 that is used for glazing channel 17.On the one hand the polarizing filter (not shown) of camera 13a, 13b and on the other hand the polarizing filter (not shown) of glass blocks 28a, 28b be arranged to be in the right angle.
Lighting device 43 (being used for the irradiation of UV reverberation) is arranged in shell 23 tops (referring to Fig. 1) that are used for glazing channel 17.
Structure in the example of usage level transmission channel 11 (Fig. 1) key-drawing 5.This structure is used for Vertical Channel 41 (referring to Fig. 2 and 3) similarly.
In Fig. 6, blowing out device 9 comprises a plurality of air nozzle 30a to 30n, and each air nozzle all links with corresponding valve 31a to 31n.Air nozzle 30a to 30n is connected to common compressed air line 32 by valve 31a to 31n, and described compressed air line 32 is connected to compressed air source 33.Reference numeral 11 expression fiber transmission pipelines, described fiber transmission pipeline has the inlet that is used for air nozzle 30a to 30n.The inlet that is used for gaseous blast admission passage 20 shown in Figure 1.Valve 31a to 31n is optionally controlled by control valve device, for example, under the situation that has foreign matter 34, valve 31d temporarily opens, so that make unexpected air-flow leave air nozzle 30d and foreign matter 34 is blown to (referring to Fig. 1) in the passage 20 with for example high speed of 15 to 25 meter per seconds.
According to Fig. 7, camera 6, image evaluation device 36 and the control valve device 37 that is used for the valve of blowing out device 7 are connected to Electronic Control and adjusting device 35.In addition, camera 13a and 13b, image evaluation device 38 and the control valve device 39 that is used for the valve 31a to 31n of blowing out device 19 are connected to Electronic Control and adjusting device 35.
According to Fig. 8, equipment according to the present invention as shown in Figure 3 is installed in for example downstream of the descaling machine 50 of Tr ü tzschler CL-C4.Fibrous material by air-flow E (air doffs) from last high speed card clothing roller 51
4Remove, and as in the fibrous airstream D admission passage 52, described passage 52 is U-shaped structures roughly, and its roughly an arm of U-shaped structure upwards merge in the Vertical Channel 53.Fiber air mixture D flows through passage 53 from bottom to top.Linking as shown in Figure 3 according to equipment of the present invention and passage 53.Blowing out device 19 (referring to Fig. 1) is arranged after checkout equipment according to the present invention.There is not the fiber air mixture of foreign matter to supply with forward subsequently to be used for further processing.Directly be not arranged in opening roller 51 according to equipment of the present invention (camera 13, lighting device 18 and 43, tilting mirror 46)
4Conveyor zones in.
According to Fig. 9, equipment according to the present invention as shown in Figure 3 is installed in for example downstream of the descaling machine 54 of Tr ü tzschlerCL-C1.Fibrous material is removed (air doffs) by air-flow E from high speed card clothing roller 55, and enters in the passage 56 that is in tilted layout as fibrous airstream D, and described passage 56 upwards merges in the Vertical Channel 53 via bending area.Fibre blend D flows through passage 56 and passage 53 from bottom to top.Linking as shown in Figure 3 according to equipment of the present invention and passage 53, similar with Fig. 8.Blowing out device 19 (referring to Fig. 8) is arranged after checkout equipment according to the present invention, and do not have the fibrous material G of foreign matter to supply with forward subsequently to be used for further processing.Directly be not arranged in the conveyor zones of opening roller 55 according to equipment of the present invention (camera 13, lighting device 18 and 43, tilting mirror 46).
According to Figure 10, vertically the passage of arranging 57 is arranged in the shell 58.The layout of Figure 10 transmits fibrous material by passage from the top to the bottom, monitor fibrous material in this passage.The arrow of partly filling by Reference numeral I indication is represented advancing of the fiber that transmits in the air-flow downwards.The monitoring of the fiber that flows from the top to the bottom in passage has been found that it is favourable.
First detector means comprises two CCD cameras 59
I, 59
II(line scan cameras), described camera 59
I, 59
IIBy two tilting mirrors 60 that are arranged to certain angle
IWith 60
IIBe applied to glazing channel 62 respectively indirectly.Optical flat is arranged offset a little mutually.Passage 57 with camera 59
IBe furnished with illuminator 61 on one side of positioned opposite
I, and passage 57 with camera 59
IIBe furnished with illuminator 61 on one side of positioned opposite
IILike this, the material in the glazing channel 62 is by two cameras 59
I, 59
IIDetect from both sides.
The shell 58 that comprises glazing channel 62
I, camera 59
IWith 59
II, tilting mirror 60
IWith 60
II, and illuminator 61
IWith 61
IIForm first detection module 63
I, at described first detection module 63
IThe place detect among the cotton or between particularly coloured foreign material.
At first detection module 63
IThe below is provided with second detection module 63
IIEach cross section of passage 57 is identical.
Second detector means comprises a CCD camera 13, and described camera 13 is applied to glazing channel 64 indirectly by the tilting mirror 46 that is arranged to certain angle.On passage 57 and sides camera 13 positioned opposite, be furnished with the have polarizing filter illuminator 18 of (referring to Fig. 2), and be furnished with the illuminator 43 that is used for UV light in the face of on the side of camera 13 at passage 57.Polarised light (transmitted light) and since the reverberation (incident light) of UV irradiation jointly caught by this CCD camera 13.Light (transmitted light and incident light) is applied to the material the glazing channel 64 from both sides.The shell 58 that holds glazing channel 64
II, camera 13, tilting mirror 46 and illuminator 18,14 form second detection module 63
II, at described second detection module 63
IIThe place detect among the cotton or between particularly light color or transparent plastics.
At second detection module 63
IIThe below is provided with separation module 65.At shell 58
IIIIn separation module 65 comprise blowing out device 19 with row's nozzle, described blowing out device 19 links with the sidewall of passage 57.With what link with sidewall of this row nozzle (referring to Fig. 7) positioned opposite in the passage 57 is collection container 20, and described collection container 20 is under the swabbing action, is used for blowing out impurity from the stream that transmits.
Use the example of the descaling machine 50,54 in the spinning room preparation to explain equipment of the present invention.It can be used in during ginning on the gin handles similarly.
Claims (62)
1. prepare at spinning room for one kind, be used in the devices such as ginning among the fabaric mterial flow of test example such as cotton or between such as polypropylene, the equipment of the foreign matter of plastic materials such as woven plastics and plastic sheet, wherein among the fibrous material or between foreign matter be arranged to by with the crew-served polarized light source of detector means (camera) by transillumination (transmitted light), wherein light and/or transparent foreign matter is by transillumination, and from the light action in another source on fabaric mterial flow, it is characterized in that, among the fibrous material (40) or between foreign matter (34) be arranged to by ultraviolet source (43; 431 to 434) illuminated (reverberation), and described ultraviolet source (43; 431 to 434) with described detector means (camera 13; 13a, 13b) co-operating, described detector means can detect by the foreign matter of transillumination and irradiation (34) also (38, the 38I place) itself and described fibrous material (40) are distinguished.
2. equipment according to claim 1 is characterized in that, polarised light and the luminous energy that reflects owing to UV irradiation are jointly by a described detector means record.
3. equipment according to claim 1 and 2 is characterized in that, polarised light and because UV irradiation and beam reflected can be by described detector means records simultaneously.
4. according to each described equipment in the claim 1 to 3, it is characterized in that when described foreign matter was used the polarised light transillumination, described foreign matter can change polarized state of light.
5. according to each described equipment in the claim 1 to 4, it is characterized in that when described foreign matter was penetrated with UV illumination, described foreign matter presented fluorescent effect.
6. according to each described equipment in the claim 1 to 5, it is characterized in that described detector means comprises apparatus for evaluating.
7. according to each described equipment in the claim 1 to 6, it is characterized in that in order to cover big working width, plurality of detection apparatus segmentation is abreast side by side arranged.
8. according to each described equipment in the claim 1 to 7, it is characterized in that in order to reduce installing space, the sight line of described camera can be by speculum or prism deflection.
9. according to each described equipment in the claim 1 to 8, it is characterized in that described camera has the polarizing filter as analyzer.
10. according to each described equipment in the claim 1 to 9, it is characterized in that described camera has the filter that prevents that UV light from passing through.
11., it is characterized in that the separator that is used to isolate described foreign matter is connected to described apparatus for evaluating according to each described equipment in the claim 1 to 10, described separator is arranged in the downstream of detection zone along direction of transfer.
12., it is characterized in that the foreign matter of plastic material makes the polarization vector rotation of polarised light according to each described equipment in the claim 1 to 11.
13., it is characterized in that described polarised light is the straight line polarization according to each described equipment in the claim 1 to 12.
14., it is characterized in that described polarised light is a circular polarization according to each described equipment in the claim 1 to 13.
15., it is characterized in that described polarised light is elliptical polarization according to each described equipment in the claim 1 to 14.
16. according to each described equipment in the claim 1 to 15, it is characterized in that, be used for the light source of polarised light and not homonymy (transmitted light layout) that detector means is arranged in fibre bundle.
17. according to each described equipment in the claim 1 to 16, it is characterized in that, be used for the light source of UV light and the same side that detector means is arranged in fibre bundle (reverberation layout).
18. according to each described equipment in the claim 1 to 17, it is characterized in that, realize that depolarization is to be used for detection.
19. according to each described equipment in the claim 1 to 18, it is characterized in that, realize that reflection suppresses to be used for detection.
20., it is characterized in that the foreign matter of plastic material is because anisotropic behavior (for example birefringence) changes described polarised light, so that as seen described light become by the analyzer of detector means according to each described equipment in the claim 1 to 19.
21., it is characterized in that fibrous material is arranged in the passage of glass etc. according to each described equipment in the claim 1 to 20.
22., it is characterized in that fibrous material pneumatically transmits by passage according to each described equipment in the claim 1 to 21.
23., it is characterized in that fibrous material is arranged on the conveyer belt according to each described equipment in the claim 1 to 22.
24. according to each described equipment in the claim 1 to 23, it is characterized in that fibrous material is arranged on the roller, for example on the separate roller.
25., it is characterized in that roller promptly rotates according to each described equipment in the claim 1 to 24.
26., it is characterized in that detector means is a line scan cameras according to each described equipment in the claim 1 to 25.
27., it is characterized in that detector means is a matrix camera according to each described equipment in the claim 1 to 26.
28., it is characterized in that detector means comprises optical sensor according to each described equipment in the claim 1 to 27.
29. according to each described equipment in the claim 1 to 28, it is characterized in that, carry out colour and detect.
30. according to each described equipment in the claim 1 to 29, it is characterized in that, carry out black and white and detect.
31. according to each described equipment in the claim 1 to 30, it is characterized in that, between light source and fibrous material, be furnished with polarizer.
32. according to each described equipment in the claim 1 to 31, it is characterized in that, be provided with the light source of polarized light-emitting.
33., it is characterized in that polarizer is integrated on the light source or is integrated in the light source according to each described equipment in the claim 1 to 32.
34. according to each described equipment in the claim 1 to 33, it is characterized in that, between fibrous material and detector means, be furnished with analyzer.
35. according to each described equipment in the claim 1 to 34, it is characterized in that, be provided with also detector as analyzer.
36., it is characterized in that analyzer is integrated on the detector or is integrated in the detector according to each described equipment in the claim 1 to 35.
37., it is characterized in that light reflection element is arranged in the light path according to each described equipment in the claim 1 to 36.
38., it is characterized in that photorefractive element is arranged in the light path according to each described equipment in the claim 1 to 37.
39., it is characterized in that speculum is as element according to each described equipment in the claim 1 to 38.
40., it is characterized in that prism is as element according to each described equipment in the claim 1 to 39.
41., it is characterized in that lens are as element according to each described equipment in the claim 1 to 40.
42. according to each described equipment in the claim 1 to 41, it is characterized in that, be useful on the device of removal (separation) foreign matter in the arranged downstream of apparatus for evaluating.
43., it is characterized in that apparatus for evaluating and removal device (separator) are electrically connected mutually by control or switching device shifter according to each described equipment in the claim 1 to 42.
44., it is characterized in that described apparatus arrangement is in the downstream of cleaning plant according to each described equipment in the claim 1 to 43.
45., it is characterized in that described apparatus arrangement is in carding machine according to each described equipment in the claim 1 to 44.
46., it is characterized in that described apparatus arrangement is in the downstream of carding machine according to each described equipment in the claim 1 to 45.
47., it is characterized in that described apparatus arrangement is in the downstream of external fiber separator according to each described equipment in the claim 1 to 46.
48., it is characterized in that the anisotropy such as the birefringence effect of foreign matter is used to detect according to each described equipment in the claim 1 to 47.
49., it is characterized in that the selection of foreign matter absorbs behavior (dichroism) and is used to detect according to each described equipment in the claim 1 to 48.
50., it is characterized in that the optically-active behavior of foreign matter (rotation disperses) is used to detect according to each described equipment in the claim 1 to 49.
51., it is characterized in that detector means can be distinguished the foreign matter of fibers form and the foreign matter of sheet-form based on its resolving power according to each described equipment in the claim 1 to 50.
52., it is characterized in that the UV configurations of light sources is the linear lighting system that is used to shine working width according to each described equipment in the claim 1 to 51.
53., it is characterized in that the UV light source is made of close arrangement plurality of single light source together according to each described equipment in the claim 1 to 52, with the irradiation working width.
54. according to each described equipment in the claim 1 to 53, it is characterized in that the UV light source comprises the single source of for example putting form, described single source shines working width via grenade instrumentation.
55., it is characterized in that the light of UV light source is bundled on the surface to be checked by reflector or lens according to each described equipment in the claim 1 to 54.
56., it is characterized in that the UV light source comprises and stops all not expect wavelength and thereby the filter that only allows UV light to pass through according to each described equipment in the claim 1 to 55.
57., it is characterized in that passage is arranged vertically according to each described equipment in the claim 1 to 56.
58., it is characterized in that passage is arranged obliquely according to each described equipment in the claim 1 to 57.
59., it is characterized in that fibrous material transmits and passes through passage according to each described equipment in the claim 1 to 58 from the top to the bottomland.
60., it is characterized in that fibrous material transmits from bottom to top and passes through passage according to each described equipment in the claim 1 to 59.
61., it is characterized in that the channel water level land is arranged according to each described equipment in the claim 1 to 60.
62., it is characterized in that the described equipment that is arranged in the opening roller downstream directly is not arranged in the conveyor zones of described opening roller according to each described equipment in the claim 1 to 61.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008031199.5A DE102008031199B4 (en) | 2008-07-03 | 2008-07-03 | Device in spinning preparation, ginning or similar for detecting foreign parts made of plastic, such as polypropylene or similar. |
| DE102008031199.5 | 2008-07-03 | ||
| DE102008034385A DE102008034385A1 (en) | 2008-07-23 | 2008-07-23 | Device in the spinning preparation, Ginnerei o. The like. For detecting foreign substances in or between fiber material, especially cotton |
| DE102008034385.4 | 2008-07-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101619537A true CN101619537A (en) | 2010-01-06 |
| CN101619537B CN101619537B (en) | 2014-02-12 |
Family
ID=41396652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910203140.8A Active CN101619537B (en) | 2008-07-03 | 2009-06-02 | Apparatus for detection of foreign matter in plastic material in spinning room preparation, ginning or like installation |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101619537B (en) |
| BR (1) | BRPI0901598B8 (en) |
| DE (1) | DE102008031199B4 (en) |
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| CN105308439A (en) * | 2013-06-24 | 2016-02-03 | 特吕茨施勒有限及两合公司 | Device in spinning preparation, ginning or the like for identifying foreign bodies of the same colour or the same brightness or imperfections |
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| IT1252969B (en) * | 1991-11-29 | 1995-07-07 | Eidon Ricerca Sviluppo Documen | PROCEDURE FOR DETECTING SYNTHETIC FIBERS IN THE PROCESSING OF SILK CASAM AND RELATED EQUIPMENT |
| FR2688064B1 (en) * | 1992-07-22 | 1997-10-17 | Scanera Sc | FIBROUS MATERIALS FAULT DETECTION DEVICE |
| DE4427101A1 (en) | 1994-07-30 | 1996-02-01 | Boehringer Mannheim Gmbh | Apparatus and method for the optical characterization of the structure and composition of a scattering sample |
| DE19516569B4 (en) | 1995-05-05 | 2009-04-23 | TRüTZSCHLER GMBH & CO. KG | Device for separating foreign substances, eg. B. metallic impurities, from a fiber transport route in the spinning preparation |
| EP1959039A3 (en) * | 2001-02-16 | 2009-05-27 | Jossi Holding AG | Separating device for foreign material |
| DE10347240B4 (en) * | 2003-10-10 | 2015-10-15 | Trützschler GmbH & Co Kommanditgesellschaft | Apparatus in the spinning preparation for detecting foreign parts made of plastic in fiber flakes |
| WO2008058573A1 (en) | 2006-11-16 | 2008-05-22 | Jossi Holding Ag | Method and apparatus for detecting and separating impurities |
| DE102006057215B4 (en) | 2006-12-01 | 2022-08-11 | Trützschler GmbH & Co Kommanditgesellschaft | Device on a spinning preparation plant for detecting foreign matter in fiber material |
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2008
- 2008-07-03 DE DE102008031199.5A patent/DE102008031199B4/en active Active
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2009
- 2009-05-29 BR BRPI0901598A patent/BRPI0901598B8/en active IP Right Grant
- 2009-06-02 CN CN200910203140.8A patent/CN101619537B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101619537B (en) | 2014-02-12 |
| BRPI0901598B8 (en) | 2022-11-22 |
| BRPI0901598B1 (en) | 2019-11-26 |
| DE102008031199B4 (en) | 2024-06-13 |
| BRPI0901598A2 (en) | 2010-04-06 |
| DE102008031199A1 (en) | 2010-01-07 |
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Effective date of registration: 20220512 Address after: The German city Minxin Gladbach Patentee after: Trutschler Group Europe Address before: The German Monchengladbach Patentee before: TRuTZSCHLER GmbH & Co.KG |