CN102384911B - Device and method for detecting hollowness and core exposure yarn defect of elastic core-spun yarn - Google Patents
Device and method for detecting hollowness and core exposure yarn defect of elastic core-spun yarn Download PDFInfo
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- CN102384911B CN102384911B CN201110234034.3A CN201110234034A CN102384911B CN 102384911 B CN102384911 B CN 102384911B CN 201110234034 A CN201110234034 A CN 201110234034A CN 102384911 B CN102384911 B CN 102384911B
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Abstract
The invention discloses a device and a method for detecting hollowness and a core exposure yarn defect of an elastic core-spun yarn. Two ends of a first half frame and two ends of a second half frame are respectively connected onto a first telescopic connector and a second telescopic connector to be assembled into a detection frame; the elastic core-spun yarn is uniformly wound outside the detection frame through a yarn winding device and a yarn arranging device, and the arrangement density of the yarn is 5 to 80 yarns per centimeter; the first telescopic connector and the second telescopic connector are adjusted to reduce the width of the detection frame, so the elastic core-spun yarns arranged on the detection frame are retracted; and the detection frame is arranged under a high color background to observe and count the hollowness and the core exposure yarn defects. The device and the method has beneficial effects that: the elastic core-spun yarn can be rapidly and accurately ordered and detected, the limit retraction of the elastic core-spun yarn is easy to realize, the hollowness and the core exposure yarn defect can be accurately observed, and the device is convenient to operate.
Description
Technical field
The present invention relates to textile yarn technical field of measurement and test, especially relate to the detection technique of a kind of elastic force composite yarn hollow and dew heart yarn defect.
Background technology
The structure of elastic force composite yarn is by the yarn core of an elastic filament, and the yarn sheath consisting of cotton fiber or other staple fibre being centered around outside yarn core is fibrous.Generally, the yarn core of elastic force composite yarn is synthetic material, as spandex (polyimide fiber) or polyethylene kind fiber, has higher elasticity.Yarn sheath fiber is generally cotton fiber or regenerated fiber.Therefore elastic force composite yarn combines the high resiliency of core material with the comfortable feel characteristics of sheath fiber.Along with the raising of people's living standard, elastic force composite yarn application is more and more wider, not only for thicker denim, also for the textile shirt of top grade.
Elastic force composite yarn is in resultant yarn process, often there is the fracture of elasticity yarn core and the continuous phenomenon of yarn sheath, cause elastic force composite yarn hollow, or because the coated bad elastic filament that causes exposes, finally on cloth cover, form special yarn defect, cause fabric degradation even to be scrapped, therefore the physical index of elastic force composite yarn is detected, except conventional yarn defect, also must comprise stretch yarn hollow and reveal two special yarn defects of core.
There is Research Literature to announce the detection method of some covering yarn hollows.For example " measure the method and apparatus of core in covering yarn " (number of patent application 200780020271.1) and " wadding detecting method in core-spun yarn and device " (number of patent application 200680016642.4).These detection methods are all on spinning machine, to take normal packet heart yarn as measuring object, detection to the short-and-medium fragment hollow of elastic force composite yarn and dew heart yarn defect is at all helpless, and these special yarn defects are very large on fabric appearance impact, particularly on the textile shirt fabric of top grade.
The very big impact on fabric in view of the hollow of elastic force composite yarn and the fault of dew core, textile industry standard is illustrated for the hollow of elastic force composite yarn and the detection method of dew core specially, " specimen length in accordance with regulations and package tension force shake and get reeled yarn; tieing should be shorter than 1cm; should will after ryce arm purse up, take off reeled yarn; reeled yarn length is 100m, reeling tension force is (1.2 ± 0.2) li ox/Tekes.By sight, by strand check yarn defect, check thing becomes 40～miter angle with vertical light, and reviewer should be in the face of check thing, and it is principle that check distance be take eyesight leicht fallen D/A when recognizing yarn defect of reviewer, can use magnifier observation ".Directly use after existing thread yarn horizontal metroscope coiling reeled yarn, make it be relaxed state range estimation counting elastic force composite yarn hollow, reveal core fault number.But in practical operation, find that girth is that the elastic force composite yarn of 1m is while being natural shrinking state, its length is only about 20cm, for length, at 10cm, with interior hollow, dew heart yarn defect, because shrinkage rates is excessive, can not detect on the contrary, the reeled yarn width of 100 yarn formations is 3cm left and right simultaneously, but the arrangement between yarn can not be controlled, can be overlapped between yarn, therefore use existing apparatus and method detect the hollow of elastic force composite yarn and reveal core fault, the accuracy not only detecting is low, and length can not detect with interior short and small fault at 10cm at all.
Summary of the invention
The object of this invention is to provide a kind of device of conveniently realizing the detection elastic force composite yarn hollow of elastic force composite yarn retraction and ordered arrangement and revealing heart yarn defect, not only can effectively control the arrangement between yarn, but also can realize controlled contraction, make on covering yarn all hollows and reveal core fault to obtain being fully exposed to be convenient to accurate counting.
Another object of the present invention is to provide a kind of method that detects quickly and accurately elastic force composite yarn hollow and reveal heart yarn defect.
Technical solution of the present invention is: the pick-up unit of a kind of elastic force composite yarn hollow and dew heart yarn defect, comprise Yarn winding apparatus and row's yarn equipment, it is also provided with the detection block being comprised of the first half frames, the first expansion joint, the second expansion joint and the second half frames, wherein the first half frames are connected respectively the first expansion joint, the second expansion joint with the two ends of the second half frames, the first expansion joint and the second expansion joint are respectively the female hollow cylindrical body of tool, and the end of the first half frames and the second half frames is respectively equipped with the external thread with screw-internal thread fit.
The first half frames of detection block are connected by two expansion joints respectively with the second half frames, can realize the adjusting to detection block width by adjusting the length of expansion joint, the elastic force composite yarn being arranged in detection block is arranged and can be shunk thereupon, easy to operate, by arranging elastic force composite yarn around yarn and row's yarn equipment in detection block, simple operation, arrangement more orderly, can improve the accuracy while detecting.Described the first expansion joint and the second expansion joint are respectively the female hollow cylindrical body of tool, and the end of described the first half frames and the second half frames is respectively equipped with the external thread with screw-internal thread fit.Simple in structure, regulate easily.
A method that detects elastic force composite yarn hollow and dew heart yarn defect, comprises the following steps:
(1), the two ends of the first half frames and the second half frames are connected in the first expansion joint and the second expansion joint, assembling forms detection block, and first expansion joint and the second expansion joint be respectively the female hollow cylindrical body of tool, the end of the first half frames and the second half frames is respectively equipped with the external thread with screw-internal thread fit; (2), use Yarn winding apparatus and row's yarn equipment by elastic force core-spun yarn uniformly outside detection block, arranging density be 5-80 root/centimetre; (3), regulate the first expansion joint and the second expansion joint, reduce the width of detection block, make the elastic force composite yarn retraction of arranging in detection block; (4), detection block is placed in and under dark-background, observes and count hollow and reveal heart yarn defect.Can effectively control the amount of recovery of elastic force composite yarn, make hollow and reveal heart yarn defect and fully come out, convenient counting.
In step 3, the amount of recovery of controlling elastic force composite yarn is the 10-40% that is arranged in single elastic force composite yarn length in detection block.
The invention has the beneficial effects as follows: can fast and accurately elastic force composite yarn be sorted, be detected, easily realize the limited retraction of elastic force composite yarn, can accurately observe hollow and reveal heart yarn defect, easy to operate.
Accompanying drawing explanation
The structural representation that accompanying drawing 1 is the embodiment of the present invention;
Accompanying drawing 2 is that the embodiment of the present invention is around the work schematic diagram of yarn;
Accompanying drawing 3 for Yarn-recovery in detection block of the present invention after yarn defect schematic appearance;
Accompanying drawing 4 is cooperation schematic diagram when detection block is shunk in the embodiment of the present invention;
Accompanying drawing 5 is cooperation schematic diagram when detection block is launched in the embodiment of the present invention;
1, wire, 2, around yarn motor, 3, chuck, 4, detection block, 41, the first half frames, 42, the second half frames, the 51, first expansion joint, the 52, second expansion joint, 6, bearing, 7, slide block, 8, elastic force composite yarn, 9, twizzle, 10, yarn cylinder, 11, screw thread lever jack, 12, row's yarn motor, 13, hollow yarn defect, 14, reveal heart yarn defect, 15, tensioner, 16, internal thread, 17, external thread, 18, external thread.
Embodiment
Embodiment:
Consult Fig. 1-5, for a kind of pick-up unit that detects elastic force composite yarn hollow and reveal heart yarn defect, comprise Yarn winding apparatus, row's yarn equipment and the detection block 4 being comprised of the first half frames 41, the first expansion joint 51, the second expansion joint 52 and the second half frames 42, wherein the first half frames 41 are connected respectively the first expansion joint 51, the second expansion joint 52 with the two ends of the second half frames 42.Yarn winding apparatus comprises wire 1, around yarn motor 2, two chucks 3 and bearings 6, the both sides of detection block 4 are respectively by 3 clampings of two chucks, one of them chuck 3 is fixed on bearing 6, another chuck 3 is driven around yarn motor 2, drives detection block 4 rotations around yarn.Row's yarn equipment comprises slide block 7, twizzle 9, screw thread lever jack 11, row's yarn motor 12 and tensioner 15.Elastic force composite yarn 8 on yarn cylinder 10 is through twizzle 9 and tensioner 15, and under the acting in conjunction of winding motor 2 and row's yarn motor 12, elastic force composite yarn 8 is arranged in detection block 4 uniformly.The first expansion joint 51 and the second expansion joint 52 are respectively the hollow cylindrical body with internal thread 16, and the end of the first half frames 41 and the second half frames 42 is respectively equipped with the external thread 17,18 coordinating with internal thread 16.The position of end by adjusting the first half frames 41 and the second half frames 42 in the first expansion joint 51 and the second expansion joint 52, reduces the width of detection block 4, makes to arrange superincumbent elastic force composite yarn 8 retractions, and convenient detection used.
A method that detects elastic force composite yarn hollow and dew heart yarn defect, comprises the following steps:
(1), the both ends of the first half frames 41 and the second half frames 42 are connected to respectively in the first expansion joint 51 and the second expansion joint 52, assembling forms detection block 4;
(2), use Yarn winding apparatus and row's yarn equipment by elastic force core-spun yarn 8 uniformly outside detection block 4, arranging density be 5-80 root/centimetre;
(3), the position in the first expansion joint 51 and the second expansion joint 52, the both ends that regulate the first half frames 41 and the second half frames 42, reduce the width of detection block 4, make the elastic force composite yarn retraction 8 of arranging in detection block 4;
(4), detection block 4 is placed in and under dark-background, observes and count hollow and reveal heart yarn defect.
In the present embodiment, the first expansion joint 51 and the second expansion joint 52 are respectively the sleeve of hollow and the reverse internal thread 16 arranging of tool, described detection block 4 is comprised of the first half frames 41 and the second half frame 42 two parts, wherein the end of the first half frames 41 and the second half frames 42 is respectively the cylinder with external thread 17 and 18, its external thread 17 is consistent with internal thread 16 directions of the first expansion joint 51 and the second expansion joint 52 respectively with 18 direction, and the first half frames 41 and the second half frames 42 connect into the detection block 4 of rectangle by the first expansion joint 51 and the second expansion joint 52.The first expansion joint 51 and the second expansion joint 52 material therefors are stainless steel or aluminum alloy materials, and length is 3-10 centimetre, and internal diameter is 3-30 millimeter, and external diameter is 10-40 millimeter.The first half frames 41 and the second half frame 42 material therefors are stainless steel or aluminum alloy materials, and its cross section is circular or square, and its sectional area is 40-100 square millimeter, and being combined into the rear length of detection block 4 is 10-50 centimetre, and width is 5-20 centimetre.
Elastic force composite yarn 8 on yarn cylinder 10 is through twizzle 9 and tensioner 15, under the synergy around yarn motor 2 and row's yarn motor 12, elastic filament fineness is that the spandex core-spun yarn covering yarn 8 that 50 English of 40 daniers prop up is around in detection block 4 equably, arranging density is 40 pieces/centimetre, the detection block 4 winding is taken off from chuck 3, rotate the first expansion joint 51 and the second expansion joint 52 narrows down detection block 4, the single elastic force composite yarn that makes to be arranged in detection block 4 shrinks 10-40%, detection block 4 is placed in and on black cardboard, observes and count hollow and reveal heart yarn defect, the results are shown in following table.
Above-listed detailed description is for the illustrating of one of the present invention possible embodiments, and this embodiment is not in order to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or change, all should be contained in the scope of the claims of this case.
Claims (3)
1. a device that detects elastic force composite yarn hollow and reveal heart yarn defect, comprise Yarn winding apparatus and row's yarn equipment, it is characterized in that: it is also provided with the detection block being comprised of the first half frames, the first expansion joint, the second expansion joint and the second half frames, wherein the first half frames are connected respectively the first expansion joint, the second expansion joint with the two ends of the second half frames; Described the first expansion joint and the second expansion joint are respectively the female hollow cylindrical body of tool, and the end of described the first half frames and the second half frames is respectively equipped with the external thread with screw-internal thread fit.
2. a method that detects elastic force composite yarn hollow and dew heart yarn defect, is characterized in that, it comprises the following steps:
(1), the two ends of the first half frames and the second half frames are connected in the first expansion joint and the second expansion joint, assembling forms detection block, described the first expansion joint and the second expansion joint are respectively the female hollow cylindrical body of tool, and the end of described the first half frames and the second half frames is respectively equipped with the external thread with screw-internal thread fit;
(2), use Yarn winding apparatus and row's yarn equipment by elastic force core-spun yarn uniformly outside detection block, arranging density be 5-80 root/centimetre;
(3), regulate the first expansion joint and the second expansion joint, reduce the width of detection block, make the elastic force composite yarn retraction of arranging in detection block;
(4), detection block is placed in and under dark-background, observes and count hollow and reveal heart yarn defect.
3. a kind of method that detects elastic force composite yarn hollow and reveal heart yarn defect according to claim 2, is characterized in that: in step 3, the amount of recovery of controlling elastic force composite yarn is the 10-40% that is arranged in single elastic force composite yarn length in detection block.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110234034.3A CN102384911B (en) | 2011-08-16 | 2011-08-16 | Device and method for detecting hollowness and core exposure yarn defect of elastic core-spun yarn |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110234034.3A CN102384911B (en) | 2011-08-16 | 2011-08-16 | Device and method for detecting hollowness and core exposure yarn defect of elastic core-spun yarn |
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| CN102384911A CN102384911A (en) | 2012-03-21 |
| CN102384911B true CN102384911B (en) | 2014-05-07 |
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| CN108663120B (en) * | 2018-05-14 | 2020-05-08 | 浙江大学 | Yarn color measuring device and method based on multispectral imaging system |
| CN114088616B (en) * | 2021-11-03 | 2024-02-27 | 鲁泰纺织股份有限公司 | Device and method for detecting slipping performance of core spun yarn |
Citations (4)
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| EP1224345A2 (en) * | 1999-10-29 | 2002-07-24 | Sitip S.P.A. | Process and related apparatus for the on-line realization of the drawing and warping steps of polyamide monofilaments |
| CN1630745A (en) * | 2002-07-09 | 2005-06-22 | 徐沃教 | Manufacturing process of drawn anti-felting worsted yarn, drawn anti-felting worsted yarn and low speed drawing machine |
| CN101724952A (en) * | 2009-11-20 | 2010-06-09 | 宁波竞宏服饰有限公司 | Yarn tightening machine |
| CN202189020U (en) * | 2011-08-16 | 2012-04-11 | 新疆溢达纺织有限公司 | Device for detecting hollow core and exposed core yarn faults of elastic covering yarns |
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2011
- 2011-08-16 CN CN201110234034.3A patent/CN102384911B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1224345A2 (en) * | 1999-10-29 | 2002-07-24 | Sitip S.P.A. | Process and related apparatus for the on-line realization of the drawing and warping steps of polyamide monofilaments |
| CN1630745A (en) * | 2002-07-09 | 2005-06-22 | 徐沃教 | Manufacturing process of drawn anti-felting worsted yarn, drawn anti-felting worsted yarn and low speed drawing machine |
| CN101724952A (en) * | 2009-11-20 | 2010-06-09 | 宁波竞宏服饰有限公司 | Yarn tightening machine |
| CN202189020U (en) * | 2011-08-16 | 2012-04-11 | 新疆溢达纺织有限公司 | Device for detecting hollow core and exposed core yarn faults of elastic covering yarns |
Non-Patent Citations (1)
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| INDUSTRIAL LABORATORY EQUIPMENT COMPANY.Textile Testing Instruments.《Textile Testing Instruments》.2009, * |
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