CN201024242Y - Viscose long filament broken filament detection device - Google Patents
Viscose long filament broken filament detection device Download PDFInfo
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- CN201024242Y CN201024242Y CNU2007200841375U CN200720084137U CN201024242Y CN 201024242 Y CN201024242 Y CN 201024242Y CN U2007200841375 U CNU2007200841375 U CN U2007200841375U CN 200720084137 U CN200720084137 U CN 200720084137U CN 201024242 Y CN201024242 Y CN 201024242Y
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- viscose filament
- filament
- photoelectric sensor
- viscose
- lousiness
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Abstract
A testing device of viscose filament and broken filament comprises a sensor part for broken filament testing, an electronic control system part, an SCM software. The utility model is characterized in that the broken filament testing sensor part comprises a focusing laser that is provided with a laser launcher and a focusing lens, a positioning-slot of viscose filament, a photoelectric sensor and a base; the focusing laser, the positioning-slot of the viscose filament and the photoelectric sensor are arranged on the base in sequence; the positioning-slot of the viscose filament is provided with at least two rabbets which contacts viscose filament; the rays emitted from the focusing laser, after focusing, project on the sensitive surface of photoelectric sensor; an object surface beside connecting line of the rabbet of viscose filament positioning-slot is around the rays focusing point. An amplified blur image is formed on the sensitive surface of the photoelectric sensor after the object surface is irradiated. The testing method and device can accurately detect the broken filament on the viscose filament, effectively improve products optimal rate, avoid wasting and reduce invest cost.
Description
Technical field
The utility model relates to a kind of spilt filament detection device, the especially a kind of viscose filament yarn spilt filament detection device that can monitor lousiness in the reeling technical process of viscose filament yarn in real time.
Background technology
Lousiness situation to viscose filament yarn detects in real time, and the working condition that has viscose rayon in China now is descending very important meaning.This is because the production equipment technology level of China now is low, a large amount of production equipments is more outmoded, if all change up-to-the-minute sophisticated equipment into, eliminates existing equipment, the quality of product can be improved immediately comprehensively, but because too huge being practically impossible of investment.The utility model fully excavates the potentiality of existing equipment, obtains the income of effectively improving the quality of products with less investment cost, has solved a very big problem for each big chemical fibre factory is anxious.
So-called lousiness is meant that strand is injured and is the phenomenon that young pilose antler phenomenon or single wire fracture, silk head protrude from the multifilament surface.
Lousiness is an important quality index of viscose filament yarn, and what of lousiness quantity in the tube length silk are one become, and directly have influence on the credit rating of this tube.From the user perspective of long filament, this index to warping, weave and dyeability all has very big influence, determined the quality of subsequent product to a great extent.In the quality index of several evaluation viscose filament yarns, most indexs all can obtain effective guarantee by strict control measure, raising workman's operant level and quality, have only the lousiness problem not solve according to manpower.Its reason is viscose filament yarn very thin (the thickest about about 400 microns), lousiness more tiny (the thinnest 19 microns), if do not pay special attention to, naked eyes are several invisible.Even if the qualitative classification worker to the detection of lousiness, also can only rely on range estimation, decide the grade of a silk tube by the number of " number " wire vent tube end face lousiness appearance.This is actually very insecure, because exhausted most silk is to be wound in the middle of letter, exposes few part of the whole tube silk of only accounting for of bobbin surface and end face.So long filament production firm often is subjected to customer complaint, scold that its product inherent quality and nominal level are not inconsistent, and then claim compensation.Consequently the prestige on quality of product descends, and brings serious negative effect for the brand of product, the benefit of enterprise.Technologic in addition reason often causes the appearance of a small amount of intensive lousiness to make whole bobbin reduce to off grade product, causes the significantly downslide of benefit.
Treating on the problem of lousiness, the attitude of each countries and regions has very big difference.As produce the countries and regions that the equipment technology level is higher, technology is advanced, lousiness generally can not become the problem that influences quality, thereby seldom considers the assurance to quality from the detection of dynamic aspect of lousiness.Opposite in the low place of production equipment technical merit, lousiness problem troublesome, also not seeing so far can the actual device for dynamically detecting that comes into operation.In relevant research document, focus mostly in rigidity thread or other the detection than crude fibre (as glass fibre) bigger to various diameters are discussed, as calibrate, survey blemish etc., main means are to utilize electric transducer or photoelectric sensor that the relevant parameter of measured object is converted to the signal of telecommunication, and one of them typical application is to adopt ccd sensor to realize the detection of dynamic in line footpath.It is feasible fully, ripe seeing technically the checkout gear that constitutes with these methods is single, independently using, and the single assembly cost is higher not to be had very yet influences.The regrettably detection of these devices and inapplicable long filament, one of reason be long filament be not rigidity and lousiness too tiny, if do not take special measure, general sensor can't detect corresponding signal at all, it two is that platform number, the number of spindles of spooler is too many, cost to single assembly is too responsive, and this class achievement in research in fact detects in real time at the lousiness of viscose filament yarn and can not get using and promoting.
The foundation of spilt filament detection is that normal viscose filament yarn is even, smooth, has the local silk head of lousiness to protrude from the multifilament surface, and silk thread has the young pilose antler phenomenon.Utilize this feature can differentiate having or not of lousiness.Available noncontact optical measurement method realizes, and this device can not done any change or restriction to existing equipment and technology.The difficult point of this device is accurately to measure very tiny lousiness, makes the installation cost of developing minimum again, and the user can be accepted and high volume applications.Wherein the key issue that will solve is a Design of Sensor, requires to have simple as far as possible optical system and structure, and this has proposed higher requirement to light source, Sensitive Apparatus and corresponding treatment circuit.
Utilize prior art, possible testing scheme has following 2 kinds, measurement scheme 1: utilize high accuracy linear array CCD image sensor, directly viscose filament yarn is detected, can measure the diameter and the lousiness shape of viscose filament yarn.Testing scheme 2: the variation that utilizes photoelectric sensor to detect the luminous flux that viscose filament yarn blocks detects lousiness.Wherein, method one precision height is reliably acted charitably, but with high costs; Method 2 costs are low, but because lousiness is too tiny, the reliable rows of detection is poor.
Because the lousiness problem perplexs the chemical fibre industry of China for a long time, can not throw huge fund comprehensively more under the situation of new production equipment, be badly in need of finding a kind of investment less but the tangible method of benefit solves this problem.So we have just invented viscose filament yarn spilt filament detection device, it is a device of lousiness detection of dynamic cheaply, this device only needs simple installment work just can use (as R701 type bobbin winder) on the existing bobbin winder, can accurately detect the lousiness above the viscose filament yarn, and do not need superseded existing equipment just can improve the quality of product, saved production cost, crucial practical significance is arranged, its society, economic benefit prospect are bright and clear.
Summary of the invention
The utility model provides a kind of one-tenth tube quality to long filament to carry out effective monitoring, can accurately detect lousiness above the viscose filament yarn, improve the quality of product, effectively improve product excellent rate, and can cut the waste and the viscose filament yarn spilt filament detection device of cost of investment.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of viscose filament yarn spilt filament detection device, it comprises the spilt filament detection Sensor section, electronic control system part and scm software, it is characterized in that: the spilt filament detection Sensor section comprises the laser focusing device of being made up of generating laser and amasthenic lens, the viscose filament yarn locating slot, photoelectric sensor and base, the laser focusing device, the viscose filament yarn locating slot, photoelectric sensor is placed on the base successively, the viscose filament yarn locating slot has the notch of two contact viscose filament yarns at least, project to behind the light focusing that the laser focusing device sends on the sensitive area of photoelectric sensor, the object plane on viscose filament yarn locating slot notch line side is near light focusing point, and this object plane is focused light irradiation back becomes an amplification on the sensitive area of photoelectric sensor fuzzy image.
Principle of the present utility model is that employing noncontact optical measurement method with the lousiness on the light irradiation viscose filament yarn, becomes lousiness the fuzzy image of an amplification on the sensitive area of photoelectric sensor.
Laser focusing device of the present utility model projects to after with the light focusing that sends on the sensitive area of the photoelectric sensor behind the lousiness, the sensitive area of photoelectric sensor detects the hot spot image of the amplification that lousiness produces, viscose filament yarn makes viscose filament yarn from beam focus bypass mistake through locating slot, and the light that the lousiness on it is focused irradiation.During no lousiness, the light intensity no change that photoelectric sensor is accepted, when lousiness is arranged, since the twisting effect of viscose filament yarn, the lousiness rotation, can block light beam, lousiness will become the fuzzy image of an amplification on the sensitive area of photoelectric sensor, by this amplification fuzzy image the light income of photoelectric sensor is had significantly and weaken, just can simply detect the lousiness signal, by the processing of electronic control system part, lousiness is counted then.
Beneficial effect: the utility model is that a cost is low, be exclusively used in viscose filament yarn lousiness device for dynamically detecting, this device only needs simple installment work just can use (as R701 type bobbin winder) on the existing bobbin winder, it can carry out effective monitoring to the one-tenth tube quality of long filament, guarantee the prestige on quality of product, the device of viscose filament yarn lousiness detection of dynamic detects in the reeling process in real time, and can send alarm signal, so that the spinner handles, can effectively improve the excellent rate of product, stabilized product quality, and can cut the waste and cost of investment.
Description of drawings
Fig. 1 spilt filament detection schematic diagram of the present utility model, wherein: 1-lousiness, 2-viscose filament yarn, 3-hot spot.
Fig. 2 embodiment of the present utility model-viscose filament yarn spilt filament detection device imaging schematic diagram.Wherein, 7-incident light, 8-lens, 9-focus.
The spilt filament detection transducing part structure chart of Fig. 3 the utility model embodiment.Wherein: 4-laser focusing device, 5-viscose filament yarn locating slot, 6-photoelectric sensor.
The structured flowchart of the measurement mechanism of Fig. 4 the utility model embodiment.
The single chip computer measurement control software main flow chart of Fig. 5 the utility model embodiment.
The specific embodiment
Come the utility model is described further below in conjunction with the drawings and specific embodiments.
The viscose filament yarn spilt filament detection device imaging schematic diagram of the utility model embodiment is referring to Fig. 2, the spilt filament detection schematic diagram is referring to Fig. 1, spilt filament detection transducing part structure chart is referring to Fig. 3, project to after laser focusing device 4 focuses on incident light 7 on the sensitive area of a photoelectric sensor 6 and produce hot spot 3, the sensitive area of photoelectric sensor 6 detects the hot spot 3 that produces, viscose filament yarn 2 is by viscose filament yarn locating slot 5 location, pass through from beam focus other (the present embodiment before focus), on the viscose filament yarn 2 during no lousiness 1, the light intensity no change that photoelectric sensor 6 is accepted is when having lousiness 1, because the twisting effect of viscose filament yarn 2, lousiness 1 rotation, can block light beam, the light income of photoelectric sensor is weakened, can detect the lousiness signal thus, by the processing of electronic control system part, realize counting then to lousiness.
The distance of the amasthenic lens of laser focusing device 4 and focus 9 is about 3.1CM in the present embodiment, and the distance of focus and photoelectric sensor 6 is about 2.7CM.Amasthenic lens, viscose filament yarn locating slot 5 and photoelectric sensor 6 threes' position is an adjustable structure, just can make picture the fuzzy image for amplify of lousiness by adjusting one of them at photoelectric sensor 6, make it on the sensitive area of photoelectric sensor 6, hide very big area, just can measure reliably.
Measurement mechanism structured flowchart such as Fig. 4 of the utility model embodiment.
The electronic control system of the utility model embodiment partly comprises signal acquisition circuit, signal processing circuit, and single chip computer measurement control software, laser power is adjusted circuit and keyboard-display circuit.This device is at first finished the collection of signal by laser instrument, signal processing circuit is amplified the signal from sensor, shaping, making it to be suitable for single-chip microcomputer counts and power is judged, after signal enters the SCM system plate, be divided into two branch roads, one road signal is through amplifying, shaping, hysteresis relatively, to counting circuit the quantity of lousiness is counted, another road signal is through amplifying, filtering and window relatively after, delivering to single-chip microcomputer as the status signal of judging laser power judges, thereby single-chip microcomputer is adjusted to the power of laser instrument by power adjusting circuit, so just solved because laser instrument is continuously worked and long-term continual work, can be aging at leisure, the problem that its power output will change to some extent can also prevent because of the excessive damage that causes laser instrument of the power output of laser instrument.Keyboard-display circuit shows lousiness quantity, is convenient to single-chip microcomputer is operated.We can conveniently carry out the operation of power adjustment, startup and time-out to single-chip microcomputer by function key is set.
Single chip computer measurement control software comprises the program block module, power differentiation and control module, counting and data processing module thereof, keyboard processing module and display module, Signal Processing has adopted hysteresis loop comparator, interfering signal that some impulse amplitudes are less and the dither signal that causes because of interference are got rid of outside count pulse, thereby make accurate to the counting of lousiness.On the software design, adopt software trap, fill suitable jump instruction in the program memory space of blank, be used for correcting program fleet, the system that makes gets back to normal program's memory space automatically when program fleet.Single chip computer measurement control software main flow is seen Fig. 5.
The utility model is the integrated apparatus of an actual dynamic test of process, only needs better simply installment work just can be applied to (as R701 type bobbin winder) on the existing bobbin winder.Not only can long-term stable operation, detect all lousiness, the lousiness processing policy that can also propose according to the user to the lousiness counting, produce corresponding parking alarm signal, in addition also should be able to this device adjust with adapt to can not the specification kind long filament.
Claims (1)
1. viscose filament yarn spilt filament detection device, it comprises the spilt filament detection Sensor section, electronic control system part and scm software, it is characterized in that: the spilt filament detection Sensor section comprises the laser focusing device of being made up of generating laser and amasthenic lens, the viscose filament yarn locating slot, photoelectric sensor and base, the laser focusing device, the viscose filament yarn locating slot, photoelectric sensor is placed on the base successively, the viscose filament yarn locating slot has the notch of two contact viscose filament yarns at least, project to behind the light focusing that the laser focusing device sends on the sensitive area of photoelectric sensor, the object plane on viscose filament yarn locating slot notch line side is near light focusing point, and this object plane is focused light irradiation back forms an amplification on the sensitive area of photoelectric sensor fuzzy image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200841375U CN201024242Y (en) | 2007-04-11 | 2007-04-11 | Viscose long filament broken filament detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200841375U CN201024242Y (en) | 2007-04-11 | 2007-04-11 | Viscose long filament broken filament detection device |
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| CN201024242Y true CN201024242Y (en) | 2008-02-20 |
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| CNU2007200841375U Expired - Fee Related CN201024242Y (en) | 2007-04-11 | 2007-04-11 | Viscose long filament broken filament detection device |
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| CN (1) | CN201024242Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304844A (en) * | 2011-05-26 | 2012-01-04 | 恒源祥（集团）有限公司 | Photoelectric floss knot detection device |
| CN106408557A (en) * | 2016-06-30 | 2017-02-15 | 江汉大学 | Viscose long filament and broken filament detection method based on image processing technology |
-
2007
- 2007-04-11 CN CNU2007200841375U patent/CN201024242Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304844A (en) * | 2011-05-26 | 2012-01-04 | 恒源祥（集团）有限公司 | Photoelectric floss knot detection device |
| CN106408557A (en) * | 2016-06-30 | 2017-02-15 | 江汉大学 | Viscose long filament and broken filament detection method based on image processing technology |
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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: 20080220 Termination date: 20110411 |