CN100401038C - Raw silk cohesion performance detecting method and device - Google Patents
Raw silk cohesion performance detecting method and device Download PDFInfo
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- CN100401038C CN100401038C CNB2004100140569A CN200410014056A CN100401038C CN 100401038 C CN100401038 C CN 100401038C CN B2004100140569 A CNB2004100140569 A CN B2004100140569A CN 200410014056 A CN200410014056 A CN 200410014056A CN 100401038 C CN100401038 C CN 100401038C
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Abstract
The present invention relates to a method and a device for detecting the cohesion performance of raw silk. The detecting device is composed of a friction mechanism, a silk guiding mechanism, a reciprocating movement mechanism, a sensor detecting system and a computer processing system. When the detecting device detects, raw silk does circulating movement at a uniform speed. The change of silk diameters is detected in real time by the repeated action of friction, bending and stretching. The cohesion performance of the raw silk is determined based on the relationship between a change rate of the silk diameters and the cycle index of the raw silk or the movement time. The present invention eliminates the influence on test results by artificial factors and reflects the actual cohesion performance of silk strands scientifically, objectively and really. The present invention improves the creditability and the accuracy of test results and is also suitable for detecting the cohesion performance of other textile fibers.
Description
Technical field
The present invention relates under external force a kind ofly, detect the method and the device thereof of raw silk cohesion.
Background technology
Raw silk cohesion power is meant silk obvolvent power together in the raw silk.The obvolvent check is to detect raw silk to stand friction, bending, stretch and do the time spent repeatedly, produce the performance of division complexity between each root silk monofilament of the bonding and boundling of nationality silk gum, be one of auxiliary Interventions Requested important in the silk inspection and testing, in the raw silk grading, occupy considerable position.Along with no shuttle high speed loom the popularizing of Silk Industry, the importance of raw silk cohesion power more highlights.Generally adopting Du to sprinkle wave (Duplan) formula obvolvent machine at present both at home and abroad tests to raw silk cohesion, saved " cut-out, Qiang Shenli and obvolvent " in by " Throwing Science " second edition (volume two) chapter 7 the 7th that textile industry publishing house publishes in June, 1993, the structure of sprinkling unrestrained formula obvolvent machine has been done introduction to shutting out, this machine drives eccentric disc by motor by worm and gear, make the rubbing device that is installed in last connecting rod one end of dish reciprocating, on tested raw silk, carry out reciprocating friction.At the rubbing device movable end, hang up a string weight, give strand with certain force of strain.Rubbing device is combined by upper and lower two friction plates, tested raw silk is clipped in the middle of these two friction plates, the mutual cross arrangement of upper and lower friction disc, make tested raw silk about flexing is passed through under the suitable load, between the friction disc, judge, determine the obvolvent performance achievement of tested raw silk by the fragmentation condition of manual observation raw silk.Can find, utilize above-mentioned detection method and pick-up unit, exist obvious defects.At first, the fragmentation condition of raw silk is by reviewer's sensory evaluation, and different reviewers is variant to the grasp of standard, and subjective the tendency that the obvolvent achievement is controlled at a certain zone is arranged also; Secondly, in checkout procedure, the position that last bottom knife contacts with strand is constant substantially, after blade constantly weares and teares and forms breach, strand mainly be in breach with the blade friction, highly polished in the breach, strand is impaired few during friction, the obvolvent achievement height of strand, but strand is jumped out breach and the non-gap portions friction of the edge of a knife sometimes, makes the obvolvent achievement produce fluctuation; In addition, the resulting obvolvent achievement of this method is a collection of silk to be measured the average achievement of 10 times or 20 times, accuracy of detection is not high, so in the obvolvent achievement, do not establish minimum this index of obvolvent number of times, and the fluffing of organizine and broken end often occur in the weakness of cohesive force in weaving, therefore, the obvolvent method for testing performance of existing raw silk can not reflect the present situation of raw silk objectively.For all the foregoing reasons, at present, for the obvolvent achievement on the raw silk product quality certificate, users at home and abroad all has doubt more, therefore the obvolvent check becomes a bigger project of dispute in the silk inspection and testing project, and the raw silk cohesion method of inspection and instrument are demanded urgently improving.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of eliminate human factor influence and can science, objective, reflect the detection method and the device of the actual obvolvent performance of strand truly.
Raw silk cohesion detection method of the present invention is: with the tested raw silk of certain-length do at the uniform velocity to be rubbed in the shuttling movement, the effect repeatedly of crooked, stretching external force, sensor detects the silk footpath in real time to be changed, according to the rate of change in measured silk footpath and the relation between tested raw silk cycle index or the run duration, determine the obvolvent performance of raw silk.
In above-mentioned raw silk cohesion detection method, a kind of scheme is foundation for setting the cycle index or the run duration of tested raw silk under the external force effect to record pairing silk footpath rate of change, determines the obvolvent performance of raw silk; Another kind of scheme is for setting the rate of change in silk footpath, and when reaching this value with the rate of change that records tested raw silk silk footpath under the external force effect, tested raw silk institute's round-robin number of times or run duration are foundation, determine the obvolvent performance of raw silk.
A kind of raw silk cohesion pick-up unit provided by the present invention, friction mechanism is combined by upper and lower friction plate, friction disc is housed on the friction plate, it also comprises thread guide mechanism, reciprocating mechanism, sensor detecting system and computer processing system, thread guide mechanism is made up of driver, conducting wire pole and straining pulley, tested strand is supported in the form of a ring by conducting wire pole, and driver drives by conducting wire pole that strand is done at the uniform velocity, shuttling movement, and straining pulley is installed between two conducting wire poles; Reciprocating mechanism promotes friction mechanism and slowly moves, and the direction of motion of its direction and strand intersects; Sensor detecting system links to each other with computer processing system through interface.
Above-mentioned described a kind of raw silk cohesion pick-up unit has spiral grooves on conducting wire pole; Reciprocating mechanism is made up of crank, slide block, and crank is by direct motor drive; Sensor detecting system is made up of fiber optic conduction and common mode inhibition differential mode amplification system, it adopts the infrared modulation light source, divide the leaded light fibre that infrared light is divided into two, and conduct on the photosensitive tube, wherein one is the benchmark photosensitive tube, strand is by the light path between another photosensitive tube and the optical fiber, and signal is after differential amplifier amplifies, by the data collecting card collection.
Compared with prior art, technical solutions according to the invention have following tangible progress and advantage:
1. in testing process, because tested strand is made shuttling movement, strand enters the raw silk cohesion pick-up unit in proper order, make the real-time variation that detects the silk footpath become possibility, therefore, this method can be eliminated artificial factor, can detect raw silk cohesion exactly.
2. pick-up unit is in the process that strand is rubbed, and blade has been realized the even autogenous grinding of the edge of a knife intersect slowly steady moving with respect to the strand travel direction, has eliminated the measuring error that edge of a knife wearing and tearing bring, and has improved the accuracy of testing result.
Description of drawings
Fig. 1 is the schematic diagram of a kind of raw silk cohesion proving installation of the embodiment of the invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing technical scheme of the present invention is further elaborated.
Embodiment 1:
The raw silk cohesion verifying attachment is made up of rubbing device, thread guide mechanism, reciprocating mechanism, sensor detecting system and computer processing system.Referring to accompanying drawing 1, make a call to a knot at strand 1 two ends, in the form of a ring on conducting wire pole 2 and 3, respectively have 10 road spiral grooves on the conducting wire pole, strand is walked around straining pulley 6 at the last lap of conducting wire pole head end in spiral grooves, apply certain force of strain to strand, conducting wire pole is done to rotate in the same way by direct motor drive, and drive strand and make uniform motion along Y direction, and at straining pulley and two conducting wire pole intercropping shuttling movements; The blade that rubs up and down that rubbing device 4 is installed is held in place on the knife rest between the two-layer strand; Reciprocating mechanism is crank, slide block, and crank is by direct motor drive, and it is slow on X-direction, steadily mobile to promote rubbing device; Sensor detecting system is made up of Photoelectric Detection probe 5 and NI data collecting card, by interface measured signal is sent to computing machine and carries out analyzing and processing.
The working method of described device is as follows:
The rubbing device reciprocating mechanism, guarantee that the friction blade is slow on (X-axis) direction vertical with strand motion (Y-axis) direction, steadily move, the surface of contact of blade and strand is slowly changed continuously, realize edge of a knife autogenous grinding, the stability of the assurance edge of a knife and the friction factor of friction surface are consistent all the time; On the other hand, in friction process, strand moves along Y direction, blade moves in X-direction, simulated organizine on loom because of the warp let-off, beat up and the friction of reed, heald and menopause tablet that opening is suffered, make and detect the weaving process approach raw silk, testing result more gears to actual circumstances, credible.
During detection, the strand flexing is by rubbing blade 10 times up and down, after strand is rubbed, detects the vary in diameter of strand by the Photoelectric Detection probe, and by interface measured signal is sent to computing machine.
Photodetector system is made up of fiber optic conduction and common mode inhibition differential mode amplification system.Adopt the infrared modulation light source, suppressed the interference of visible light effectively to detection system, divide the leaded light fibre that infrared light is divided into two, and accurately the location conducts on the photosensitive tube, wherein one is the benchmark photosensitive tube, and strand is by the light path between another photosensitive tube and the optical fiber, and the vary in diameter of strand is accurately amplified by differential amplifier, after the collection of NI data collecting card, be transported to and carry out analyzing and processing on the computing machine.This technology elaborates in publication number is the Chinese invention patent " a kind of optical fiber branched type silk diameter measurer " of CN1039653.
Generally, detect about 50 all after dates, calculate the silk footpath and change relative quantity.In theory, to change the obvolvent performance of the more little then silk of relative quantity good more silk footpath.
Simultaneously, tested raw silk is got 10 to 20 samples, carry out the detection of raw silk cohesion as stated above, obtain its mean value and minimum obvolvent, thereby can weigh the obvolvent performance of this batch raw silk.
Embodiment 2:
The raw silk cohesion pick-up unit that provides by embodiment 1, in advance with the information input computer system of the silk footpath rate of change of coherent the subject of knowledge and the object of knowledge correspondence, when detecting, photodetector system records the rate of change in silk footpath in real time, when reaching the value that sets,, determine raw silk cohesion according to the time of raw silk motion this moment or the cycle index of being done, in theory, the obvolvent performance of silk is good more more at most for long more or cycle index of time.
Raw silk cohesion detection method of the present invention and device thereof also are equally applicable to the obvolvent Performance Detection of other textile fibres, as polyster fibre, spandex fibre, multiply nylon fiber etc.
Claims (4)
1. raw silk cohesion pick-up unit, friction mechanism is combined by upper and lower friction plate, friction disc is housed on the friction plate, it is characterized in that: it also comprises thread guide mechanism, reciprocating mechanism, sensor detecting system and computer processing system, thread guide mechanism is made up of motor, conducting wire pole and straining pulley, tested strand is supported in the form of a ring by conducting wire pole, and motor drives by conducting wire pole that strand is done at the uniform velocity, shuttling movement, and straining pulley is installed between two conducting wire poles; Reciprocating mechanism promotes friction mechanism and slowly moves, and the direction of motion of its direction and strand intersects; Sensor detecting system links to each other with computer processing system through interface.
2. a kind of raw silk cohesion pick-up unit according to claim 1 is characterized in that: have spiral grooves on the described conducting wire pole.
3. a kind of raw silk cohesion pick-up unit according to claim 1 is characterized in that: described reciprocating mechanism is that crank, slide block are formed, and crank is by direct motor drive.
4. a kind of raw silk cohesion pick-up unit according to claim 1, it is characterized in that: described sensor detecting system is made up of fiber optic conduction and common mode inhibition differential mode amplification system, it adopts the infrared modulation light source, divide the leaded light fibre that infrared light is divided into two, and conduct on the photosensitive tube, wherein one is the benchmark photosensitive tube, strand is by the light path between another photosensitive tube and the optical fiber, signal is after differential amplifier amplifies, by the data collecting card collection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100140569A CN100401038C (en) | 2004-02-12 | 2004-02-12 | Raw silk cohesion performance detecting method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100140569A CN100401038C (en) | 2004-02-12 | 2004-02-12 | Raw silk cohesion performance detecting method and device |
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| CN1558206A CN1558206A (en) | 2004-12-29 |
| CN100401038C true CN100401038C (en) | 2008-07-09 |
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| CNB2004100140569A Expired - Fee Related CN100401038C (en) | 2004-02-12 | 2004-02-12 | Raw silk cohesion performance detecting method and device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374952B (en) * | 2010-08-19 | 2015-08-19 | 中国石油化工股份有限公司 | Method for testing cohesive force of acrylic fibers and specific purpose tool |
| CN102305763B (en) * | 2011-05-30 | 2013-04-03 | 东华大学 | Objective evaluating device for fuzzing and pilling condition of yarn |
| CN102323120B (en) * | 2011-05-30 | 2013-03-06 | 东华大学 | Method and device for evaluating pilling resistance of yarn by on-line inlet and outlet measurement mode |
| CN104132890B (en) * | 2014-02-24 | 2016-08-24 | 柳州市自动化科学研究所 | Raw silk cohesion self-checking device and the method being used for detecting raw silk cohesion thereof |
| CN107576609A (en) * | 2017-09-27 | 2018-01-12 | 中国计量大学 | A kind of raw silk cohesion detection means and its application method |
| CN112816402B (en) * | 2021-01-05 | 2024-05-07 | 天津工业大学 | Device for simulating damage of fiber bundle weaving process, method and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02136A (en) * | 1987-10-19 | 1990-01-05 | Dow Chem Co:The | Preparation of amino-1,3-benzenediol |
| CN1039653A (en) * | 1989-03-22 | 1990-02-14 | 苏州丝绸工学院 | A kind of optical fiber branched type silk diameter measurer |
| CN2053742U (en) * | 1989-03-18 | 1990-02-28 | 苏州丝绸工学院 | Optical fibre shunt-conduction silk diameter measurer |
| CN2071786U (en) * | 1990-04-19 | 1991-02-20 | 马乐富 | Seriplane for testing raw silk evenness |
| JPH06166907A (en) * | 1991-03-12 | 1994-06-14 | Akira Ito | Apparatus for measuring size in reeling yarn |
| KR100193495B1 (en) * | 1994-03-03 | 1999-06-15 | 신형인 | Test method of dynamic adhesion to fiber cords of tires for passenger cars |
| CN1389718A (en) * | 2002-07-15 | 2003-01-08 | 东华大学 | Fluff stripping strength test instrument for composite yarn of filament and short staple |
| US20030037620A1 (en) * | 2001-08-24 | 2003-02-27 | Symyx Technologies, Inc. | High throughput mechanical rapid serial property testing of materials libraries |
-
2004
- 2004-02-12 CN CNB2004100140569A patent/CN100401038C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02136A (en) * | 1987-10-19 | 1990-01-05 | Dow Chem Co:The | Preparation of amino-1,3-benzenediol |
| CN2053742U (en) * | 1989-03-18 | 1990-02-28 | 苏州丝绸工学院 | Optical fibre shunt-conduction silk diameter measurer |
| CN1039653A (en) * | 1989-03-22 | 1990-02-14 | 苏州丝绸工学院 | A kind of optical fiber branched type silk diameter measurer |
| CN2071786U (en) * | 1990-04-19 | 1991-02-20 | 马乐富 | Seriplane for testing raw silk evenness |
| JPH06166907A (en) * | 1991-03-12 | 1994-06-14 | Akira Ito | Apparatus for measuring size in reeling yarn |
| KR100193495B1 (en) * | 1994-03-03 | 1999-06-15 | 신형인 | Test method of dynamic adhesion to fiber cords of tires for passenger cars |
| US20030037620A1 (en) * | 2001-08-24 | 2003-02-27 | Symyx Technologies, Inc. | High throughput mechanical rapid serial property testing of materials libraries |
| CN1389718A (en) * | 2002-07-15 | 2003-01-08 | 东华大学 | Fluff stripping strength test instrument for composite yarn of filament and short staple |
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| CN1558206A (en) | 2004-12-29 |
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