CN108760571B - Yarn ration and ration unevenness detecting instrument - Google Patents
Yarn ration and ration unevenness detecting instrument Download PDFInfo
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- CN108760571B CN108760571B CN201810830020.XA CN201810830020A CN108760571B CN 108760571 B CN108760571 B CN 108760571B CN 201810830020 A CN201810830020 A CN 201810830020A CN 108760571 B CN108760571 B CN 108760571B
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- 239000010985 leather Substances 0.000 claims abstract description 26
- 238000005192 partition Methods 0.000 claims abstract description 25
- 238000005303 weighing Methods 0.000 claims abstract description 16
- 238000011084 recovery Methods 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 19
- 238000012360 testing method Methods 0.000 description 13
- 239000004753 textile Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
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- 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)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention provides a yarn quantitative and quantitative unevenness detecting instrument, which comprises a detecting box, wherein the detecting box is divided into a weighing unit, a length counting unit and a yarn recovery unit by a partition section, the weighing unit is fixedly provided with a first electronic balance, a yarn seat is placed on the first electronic balance, a yarn tube is placed on the yarn seat, and a doffer is arranged right above the yarn seat; a lower partition section is arranged above the doffer, a lower yarn guide hole is arranged in the middle of the lower partition section, a lower yarn clamping device is fixedly arranged above the lower yarn guide hole, a length metering disc is fixedly arranged above the lower yarn clamping device, and the length metering disc is connected with a rotary encoder; an upper yarn clamping device is arranged above the length counting disc, a pair of length counting leather rollers are arranged above the upper yarn clamping device, an upper partition section is arranged above the upper yarn clamping device, an upper yarn guide hole is formed in the middle of the upper partition section, a second electronic balance is fixedly arranged above the upper partition section, a tension controller is arranged above the upper yarn guide hole, a groove drum is arranged above the tension controller, a yarn drum is arranged above the groove drum and is sleeved on the doffing device, the length counting leather rollers and the groove drum are respectively connected with a servo motor, and an infrared dryer is fixedly arranged on the left side of the yarn recovery unit.
Description
Technical Field
The invention relates to a textile detection instrument, in particular to a yarn quantitative and quantitative unevenness detection instrument.
Background
Yarn basis weight (also known as linear density) is an indicator of the degree of yarn thickness during spinning production, and is commonly expressed by weight per unit length of yarn, and yarn basis weight unevenness (linear density unevenness or weight unevenness) is expressed by weight change per unit length of yarn, and is an indicator reflecting the degree of yarn thickness uniformity. The quantitative and quantitative non-uniformity of the yarn as a semi-finished textile product is critical to the physical and mechanical properties, hand feeling, style and other properties of textiles. The method is an important index for conventional inspection of textile structural parameters and is also an important basis for textile design. According to the statistical analysis of three independent detection mechanisms (SGS, ITS, BV) of global authorities, the detection amount of the detection project in the detection project of textile clothing is 7% -10%, the detection amount of the detection project of yarns is more than 40%, and the total detection amount of textile enterprises and detection mechanisms at home and abroad is about 1200-1500 ten thousand times each year.
At present, the test of the index at home and abroad mainly comprises the steps of shaking a certain length of yarn by a YG086 yarn length measuring machine, weighing the yarn, and converting the yarn into a yarn quantitative index (the mass gram number of 1000 m long yarn under the condition of a public moisture regain is expressed in tex). The method for testing quantitative unevenness (linear density unevenness) is to shake a plurality of groups (30-50 groups) of yarns with a certain length by using a yarn length measuring machine, weigh the yarns respectively, and calculate the average difference coefficient or variation coefficient of the yarns. However, this test method has the following drawbacks: 1. the yarn is seriously overlapped on the yarn frame, so that the sample length is larger, and the actual result is larger. When the yarn is wound on the yarn frame of the yarn length measuring machine, because the winding number is > =100, even if the traverse device is arranged on the yarn length measuring machine to reduce the overlapping degree of the yarn, the overlapping degree of the yarn is still serious in practice, and the obtained yarn quantitative value is larger and cannot be well used as a production practice basis. 2. The length measurement and the weight measurement need to be completed respectively. The yarn quantitative test is carried out by adopting a yarn length measuring machine, firstly, the yarn is rocked, then, the yarn is cut off from a yarn frame, and weighing is carried out. The whole process is complex and has low efficiency, and secondary errors are easily caused in the process of transferring the strands. 3. Raw material waste is serious (in particular quantitative unevenness test). The shaky yarns are twisted into a group after being cut and weighed, so that the shaky yarns have no application basically and can only be treated as waste yarns, and great waste is caused. The average of the number of times of quantitative and quantitative unevenness tests is more than 100000 for textile enterprises with large and small sizes and textile detection mechanisms in China, 5 times of quantitative and quantitative unevenness tests are carried out every day, 50 groups of quantitative unevenness tests are carried out every time when the yarns are wound for 100 meters, 100000 multiplied by 365 multiplied by 5 multiplied by 30 multiplied by 100 multiplied by 547500000000 meters are needed every year, 20tex cotton yarn is taken as an example, approximately 10950 tons are calculated according to the current market price of 5 ten thousand yuan per ton, 5.5 hundred million yuan of yarns can be wasted every year in China, and for certain functional yarns, such as yarns with the functions of resisting bacteria, ultraviolet rays, electromagnetic radiation, flame retardance and the like, the unit price is 10 ten thousand to 20 ten thousand per ton, and the raw material waste is more serious.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the yarn quantitative and quantitative unevenness detecting instrument which has the advantages of reasonable structure, convenient operation, accurate detection result and recyclable sample.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a yarn ration and ration unevenness detecting instrument includes the detection case, and the detection case is divided into weighing unit, length metering unit and yarn recovery unit by last interval and interval down, and weighing unit bottom solid dress first electronic balance, places a yarn seat on the first electronic balance, places the spool on the yarn seat, is a doffer directly over the yarn seat. The upper part of the doffer is a lower partition, a lower yarn guide hole is arranged in the middle of the lower partition, a lower yarn clamping device is fixedly arranged above the lower yarn guide hole, a length metering disc is fixedly arranged above the lower yarn clamping device, and the length metering disc is connected with the rotary encoder. An upper yarn clamping device is arranged above the length counting disc, a pair of length counting leather rollers are arranged above the upper yarn clamping device, an upper partition section is arranged above the length counting leather rollers, an upper yarn guide hole is formed in the middle of the upper partition section, a second electronic balance is fixedly arranged above the upper partition section, a tension controller is arranged above the upper yarn guide hole, a groove drum is arranged above the tension controller, a yarn drum for yarn recovery is arranged above the groove drum, the yarn drum is sleeved on the doffer, the length counting leather rollers and the groove drum are respectively connected with a servo motor through a transmission mechanism, and an infrared dryer is fixedly arranged on the left side of the yarn recovery unit. The first electronic balance, the second electronic balance, the doffer, the rotary encoder, the length counting leather roller, the tension controller, the doffer and the servo motor are respectively connected with the industrial control computer through data lines. The doffer, the lower yarn guide hole, the lower yarn clamping device, the length metering disc, the upper yarn clamping device, the length metering leather roller, the upper yarn guide hole, the tension controller, the groove drum and the yarn drum are on the same straight line.
The invention has the advantages of ingenious design, simple instrument structure, convenient control, simple and quick operation, accurate and reliable detection result and low labor intensity; after the yarn test is finished, the yarn can be recycled, so that a large amount of raw materials are saved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1 is a detection box, A is a weighing unit, B is a length metering unit, C is a yarn recovery unit, 2 is a first electronic balance, 3 is a yarn seat, 4 is a yarn tube, 5 is a doffer, 6 is a lower yarn guide hole, 7 is a lower yarn clamping device, 8 is a length metering disc, 9 is a rotary encoder, 10 is an upper yarn clamping device, 11 is a length metering leather roller, 12 is an upper yarn guide hole, 13 is a second electronic balance, 14 is a tension controller, 15 is an infrared dryer, 16 is a grooved drum, 17 is a yarn drum, 18 is a doffer, 19 is a servo motor, 20 is an industrial control computer, 21 is a lower partition, and 22 is an upper partition.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a yarn ration and ration unevenness detecting instrument includes detection case 1, and detection case 1 is divided into weighing unit A, meter long unit B and yarn recovery unit C by last compartment 22 and lower compartment 21 with detection case 1, and weighing unit A bottom is adorned first electronic balance 2 admittedly, and its precision is 0.00001g, and sensitivity is high, stability is good. In the weighing unit A, the first electronic balance 2 is well protected from external factors by shielding action, so that the anti-interference capability of the weighing unit A is enhanced. A yarn seat 3 is arranged on the first electronic balance 2, a yarn tube 4 is arranged on the yarn seat 3, and a doffer 5 is arranged right above the yarn seat 3. The doffer 5 can relax the tensioned yarn when it falls, ensuring that the weighing result of the first electronic balance 2 is not affected by the yarn tension. The doffer 5 top is lower partition 21, has lower yarn guide hole 6 in the middle of the lower partition 21, and lower yarn holder 7 is adorned admittedly to lower yarn guide hole 6 top, and a meter long disc 8 is adorned admittedly to lower yarn holder 7 top, and meter long disc 8 periphery is the recess design, and the inside coefficient of friction of recess is great, prevents that the yarn that winds in the recess from skidding, guarantees meter long accuracy, and the recess girth is S millimeter, and meter long disc 8 is connected with rotary encoder 9. The rotary encoder 9 can precisely count the number of revolutions of the counting disc 8, the product of the number of revolutions of the counting disc 8 and the circumference of the groove being the length of the wound yarn. The upper yarn gripper 10 is arranged above the length metering disc 8, and the upper yarn gripper 10 and the lower yarn gripper 7 can well grip yarns, so that the yarns are further prevented from loosening in the grooves of the length metering disc 8 to generate slipping. A pair of length counting leather rollers 11 are arranged above the upper yarn gripper 10, two leather rollers in the length counting leather rollers 11 are tightly held with yarns, the product of the outer circumference of the length counting leather rollers 11 and the number of revolutions is also the length of yarn output, and the length measuring device can monitor the length measuring value of the length counting disc 8. An upper partition section 22 is arranged above the length counting leather roller 11, an upper yarn guide hole 12 is arranged in the middle of the upper partition section 22, a second electronic balance 13 is fixedly arranged on the upper partition section 22, the accuracy is 0.001g, a tension controller 14 is arranged above the upper yarn guide hole 12, the tension controller 14 feeds back the tension value of the yarn to be measured in real time, and when the tension value is obviously larger, the industrial control computer 20 drives a servo motor 19 to adjust the rotating speed so as to prevent the yarn from accidentally elongating and breaking. The tension controller 14 is provided with a groove drum 16 above, a groove is arranged on the groove drum 16 and is continuous left and right, a yarn drum 17 for yarn recovery is arranged on the groove drum 16, and the yarn is circularly wound on the yarn drum 17 left and right along the groove on the groove drum 16 to form a standard package, so that the yarn recovery is facilitated. The yarn tube 17 is sleeved on the yarn tube doffer 18, when the test is finished and all yarns are recovered on the yarn tube 17, the industrial control computer 20 drives the yarn tube doffer 18 to spring the yarn tube 17 onto the second electronic balance 13, the weight of the yarn tube 17 is measured, and the actual moisture regain of the yarns is calculated. The length measuring leather roller 11 and the groove drum 16 are respectively connected with a servo motor 19 through a transmission mechanism, the servo motor 19 precisely controls the operation of the length measuring leather roller 11 and the groove drum 16, and the left side of the yarn recovery unit C is fixedly provided with an infrared dryer 15 for drying the yarn drum 17 so as to measure and calculate the actual moisture regain of the yarn. The first electronic balance 2, the second electronic balance 13, the doffer 5, the rotary encoder 9, the length counting leather roller 11, the tension controller 14, the doffer 18 and the servo motor 19 are respectively connected with an industrial control computer 20 through data wires. The doffer 5, the lower yarn guiding hole 6, the lower yarn clamping device 7, the length metering disc 8, the upper yarn clamping device 10, the length metering leather roller 11, the upper yarn guiding hole 12, the tension controller 14, the groove drum 16 and the yarn drum 17 are on the same straight line.
When the yarn winding device works, firstly, the first electronic balance 2, the first electronic balance 13 and the rotary encoder 9 are zeroed through the industrial control computer 20, after the system is stable, the yarn spool 4 to be detected after the pre-humidifying is led out of the yarn head, 3-5 m of yarn is discarded, the yarn spool 4 is placed on the yarn seat 3, the yarn on the yarn spool 4 sequentially passes through the doffer 5, the lower yarn guide hole 6, the lower yarn clamp 7 and the groove encircling the length counting disc 8, and sequentially passes through the upper yarn clamp 10, the length counting leather roller 11, the upper yarn guide hole 12 and the tension controller 14, and is wound on the yarn drum 17 through the groove drum 16.
The industrial control computer 20 starts a detection program, the length counting leather roller 11 and the grooved drum 16 slowly draw out the yarn from the yarn tube 4 under the drive of the servo motor 19, the mass change value of the yarn tube 4 on the first electronic balance 2, the revolution value of the rotary encoder 9, the rotating speed of the length counting leather roller 11 and the tension value of the tension controller 14 are transmitted to the industrial control computer 20 in real time, and when the yarn on the yarn tube 4 is retreated, namely the weighing of the first electronic balance 2 is stable, the data acquisition is immediately finished, and finally the yarn is completely wound on the yarn drum 17 and can be used as other purposes.
The mass of the test bobbin 4 before the experiment, the empty tube mass after the yarn withdrawal of the bobbin 4 and the empty tube mass of the yarn tube 17 are respectively marked as G Yarn tube 、G Pipe 、G Cartridge Mass G of bobbin 4 Yarn tube Empty tube mass G after yarn withdrawal of bobbin 4 Pipe Can be measured by a first electronic balance 2And (5) testing to obtain the product. These data are all stored in the industrial control computer 20, the yarn having a nominal moisture regain W k Wet weight G of yarn on bobbin 4 Wet state =（G Yarn tube -G Pipe ) During the test, the industrial control computer 20 can obtain the weight G of the yarn with the segment length L (m) L (G), G L In order to wind the difference between the mass of the spool 4 before and after taking the yarn with the segment length of L (meter), the doffer 5 falls down to relax the tensioned yarn when the first electronic balance 2 measures the mass of the spool 4, so that the weighing result of the first electronic balance 2 is not influenced by the yarn tension. When the yarns are all wound on the yarn cylinder 17, the infrared dryer 15 is opened to dry the yarn cylinder 17, after the drying is finished, the yarn cylinder 17 is sprung to the second electronic balance 13 by the doffer 18, and after the weight of the yarn cylinder 17 displayed by the second electronic balance 13 is stable, the weight of the yarn cylinder 17 is marked as G Yarn cylinder Dry weight G of yarn on bobbin 17 Dry =（G Yarn cylinder -G Cartridge ) The actual moisture regain calculation formula of the yarn is as follows:
Ws=[(G yarn tube -G Pipe )-（G Yarn cylinder -G Cartridge ）]/ （G Yarn cylinder -G Cartridge ）
The quantitative (linear density) calculation formula of the yarn is as follows:
N tex =[G L ×1000×（1+W k ）]/[L(1+W s )] (tex)
wherein: w (W) S -actual moisture regain of the yarn; w (W) K -yarn definition moisture regain; g Yarn tube -testing the quality of the tube 4; g Pipe -empty tube quality of bobbin 4; g Yarn cylinder The drying quality after winding yarn of the yarn drum 17; g Cartridge -the mass of the bobbin 17; g L -the mass of the yarn of segment length L (meters) and the yarn corresponding thereto.
The industrial control computer 20 can continuously obtain the weight G of the yarn with the n segments of the segment length L (meters) and the corresponding yarn L In (g), an expert analysis software system configured in the industrial control computer 20 performs analysis calculation and automatic error correction on the quality change value and the change condition of the winding length in real timeFitting, and determining quantitative unevenness of the yarn by calculating variance or average difference. If the error value of the yarn length values obtained by the length counting disc 8 and the length counting leather roller 11 exceeds 0.5%, the test result is not analyzed as statistical data as a whole.
Claims (1)
1. The yarn quantitative and quantitative unevenness detecting instrument is characterized by comprising a detecting box, wherein the detecting box is divided into a weighing unit, a length counting unit and a yarn recovery unit by an upper partition section and a lower partition section, a first electronic balance is fixedly arranged at the bottom of the weighing unit, a yarn seat is placed on the first electronic balance, a yarn tube is placed on the yarn seat, and a doffer is arranged right above the yarn seat; a lower partition section is arranged above the doffer, a lower yarn guide hole is arranged in the middle of the lower partition section, a lower yarn clamping device is fixedly arranged above the lower yarn guide hole, a length metering disc is fixedly arranged above the lower yarn clamping device, and the length metering disc is connected with a rotary encoder; an upper yarn clamping device is arranged above the length counting disc, a pair of length counting leather rollers are arranged above the upper yarn clamping device, an upper partition section is arranged above the length counting leather rollers, an upper yarn guide hole is formed in the middle of the upper partition section, a second electronic balance is fixedly arranged above the upper partition section, a tension controller is arranged above the upper yarn guide hole, a groove drum is arranged above the tension controller, a yarn drum for yarn recovery is arranged above the groove drum, the yarn drum is sleeved on the doffer, the length counting leather rollers and the groove drum are respectively connected with a servo motor through a transmission mechanism, and an infrared dryer is fixedly arranged at the left side of the yarn recovery unit; the first electronic balance, the second electronic balance, the doffer, the rotary encoder, the length counting leather roller, the tension controller, the doffer and the servo motor are respectively connected with the industrial control computer through data lines; the doffer, the lower yarn guide hole, the lower yarn clamping device, the length metering disc, the upper yarn clamping device, the length metering leather roller, the upper yarn guide hole, the tension controller, the groove drum and the yarn drum are on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830020.XA CN108760571B (en) | 2018-07-25 | 2018-07-25 | Yarn ration and ration unevenness detecting instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830020.XA CN108760571B (en) | 2018-07-25 | 2018-07-25 | Yarn ration and ration unevenness detecting instrument |
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| Publication Number | Publication Date |
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| CN108760571A CN108760571A (en) | 2018-11-06 |
| CN108760571B true CN108760571B (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810830020.XA Active CN108760571B (en) | 2018-07-25 | 2018-07-25 | Yarn ration and ration unevenness detecting instrument |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1082520A (en) * | 1963-12-20 | 1967-09-06 | Wool Ind Res Association | Apparatus for use in determining average linear density of textile yarns |
| EP1006225A2 (en) * | 1998-12-02 | 2000-06-07 | W. SCHLAFHORST AG & CO. | Method and device for evaluating the effect of yarn characteristics on the looks of textile surfaces |
| CN1609589A (en) * | 2003-10-24 | 2005-04-27 | 上海宝鼎电子有限公司 | Method and apparatus for fast testing yarn moisture regain |
| CN201993294U (en) * | 2011-03-11 | 2011-09-28 | 盐城纺织职业技术学院 | Yarn density detecting device |
| CN102548884A (en) * | 2009-09-30 | 2012-07-04 | 村田机械株式会社 | Yarn winder |
| CN204174459U (en) * | 2014-10-28 | 2015-02-25 | 天津纺织工程研究院有限公司 | Reeled yarn line density and irregularity testing arrangement |
| CN105021495A (en) * | 2015-07-14 | 2015-11-04 | 盐城工业职业技术学院 | Linear density detector of yarns |
| CN105890726A (en) * | 2016-05-24 | 2016-08-24 | 广东溢达纺织有限公司 | Yarn on-line weighing and sampling device and method |
| CN206002080U (en) * | 2016-06-27 | 2017-03-08 | 扬州瑞辉化纤制品有限公司 | Sample skein winder for industrial yarn measurement |
| CN208350555U (en) * | 2018-07-25 | 2019-01-08 | 盐城工业职业技术学院 | A kind of yarn is quantitative and quantifies irregularity detecting instrument |
-
2018
- 2018-07-25 CN CN201810830020.XA patent/CN108760571B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1082520A (en) * | 1963-12-20 | 1967-09-06 | Wool Ind Res Association | Apparatus for use in determining average linear density of textile yarns |
| EP1006225A2 (en) * | 1998-12-02 | 2000-06-07 | W. SCHLAFHORST AG & CO. | Method and device for evaluating the effect of yarn characteristics on the looks of textile surfaces |
| CN1609589A (en) * | 2003-10-24 | 2005-04-27 | 上海宝鼎电子有限公司 | Method and apparatus for fast testing yarn moisture regain |
| CN102548884A (en) * | 2009-09-30 | 2012-07-04 | 村田机械株式会社 | Yarn winder |
| CN201993294U (en) * | 2011-03-11 | 2011-09-28 | 盐城纺织职业技术学院 | Yarn density detecting device |
| CN204174459U (en) * | 2014-10-28 | 2015-02-25 | 天津纺织工程研究院有限公司 | Reeled yarn line density and irregularity testing arrangement |
| CN105021495A (en) * | 2015-07-14 | 2015-11-04 | 盐城工业职业技术学院 | Linear density detector of yarns |
| CN105890726A (en) * | 2016-05-24 | 2016-08-24 | 广东溢达纺织有限公司 | Yarn on-line weighing and sampling device and method |
| CN206002080U (en) * | 2016-06-27 | 2017-03-08 | 扬州瑞辉化纤制品有限公司 | Sample skein winder for industrial yarn measurement |
| CN208350555U (en) * | 2018-07-25 | 2019-01-08 | 盐城工业职业技术学院 | A kind of yarn is quantitative and quantifies irregularity detecting instrument |
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| CN108760571A (en) | 2018-11-06 |
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