CN103981602B - A kind of actively holding holds the rotary device improving yarn surface structure - Google Patents
A kind of actively holding holds the rotary device improving yarn surface structure Download PDFInfo
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- CN103981602B CN103981602B CN201410204654.6A CN201410204654A CN103981602B CN 103981602 B CN103981602 B CN 103981602B CN 201410204654 A CN201410204654 A CN 201410204654A CN 103981602 B CN103981602 B CN 103981602B
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Abstract
The present invention relates to a kind of actively holding and hold the rotary device improving yarn surface structure, belong to technical field of textile processing. Apparatus of the present invention are made up of turner, air channel pedestal, miniature motor, steady arm, adopt and turner arranges cone-shaped hood, cone-shaped hood has miniature pore, air channel pedestal is provided with air channel, pedestal front end, air channel is the structure design having blast inlet on the conical surface of circular cone shape, when making external connecting negative pressure vacuum fan, produce negative pressure in cone-shaped hood, possess the effect of absorption filoplume; Adopt the structure design of miniature motor main shaft interference in turning axle rear end, realizing yam surface filoplume is attracted on cone-shaped hood outside surface, synchronous rotary motion is done with cone-shaped hood, simultaneously at yarn feeder connection place, continue compact winding on the trunk top layer of the yarn run, to the bright and clean densification of yarn surface structure. The present invention's yarn variety applied widely, that can process is many, and apparatus structure is reasonable, easy to operate, is easy to promote the use of.
Description
Technical field
The present invention relates to a kind of actively holding and hold the rotary device improving yarn surface structure, belong to technical field of textile processing.
Technical background
Filoplume is one of important indicator weighing yarn qualities. Yarn filoplume not only affects the production efficiency of the rear operation such as woven, knitting, and affects the visual appearance of the finished product, today that particularly high speed shuttleless weaving machine is generally applied, and reduces Yarn filoplume tool and is of great significance.
Yarn filoplume results from spun yarn manufacturing procedure, and its mechanism is after the fiber head end of inside and outside transfer exposes yarn body, and what depart from jaw holds the effect of holding, cannot again enter or looping on yarn body trunk, form filoplume. Filoplume increases in winder and warping process, its basic reason is: yam surface filoplume is many, structure relaxation, run at a high speed in operation at the yarn such as winder, warping, yarn is through the parts such as yarn guide member, tension part, suffer fierce friction, causing yarn body internal fiber head end seriously to take out to pull out and be free on yarn surface, filoplume increases severely, surface structure havoc. In order to reduce Yarn filoplume, it is achieved yarn is weaved smoothly, yarn after warping is generally all carried out sizing process by textile enterprise, attach Yarn filoplume, simultaneously yarn is carried out strengthen guarantor stretch, increase wear resistance. But warping adopts sheet yarn starching usually, sheet yarn starching will cause yarn inter-adhesive, it is necessary to wet, dry leasing, mutually tears and destroys yarn surface serous coat, produces two filoplumes during yarn leasing. It thus is seen that elimination Yarn filoplume, increasing yarn surface structure density should carry out before starching.
For ring spindle yarn operation, domestic and international scholar does excessive quantifier elimination. Usually the approach adopted has two kinds, and one adopts ordinary method to optimize common ring spinning process, and the method can only reduce Yarn filoplume to a certain extent, and action effect is limited; Another kind adopts novel spinning technology or special elimination filoplume device to eliminate filoplume, can significantly reduce ring spun yarn line filoplume. Novel ring spinning technology or special elimination filoplume device are the focuses of current ring spinning technical study. It is Advance of Compact Spinning Technology that current novel ring spinning technology represents; such as Department of Intellectual Property of U.S. invention disclosed patent on December 18th, 1984 " Deviceforstretching; condensingandtransportingaroveoffibersduringaspinningope ration ", patent No. US4488397; Department of Intellectual Property of U.S. invention disclosed patent on June 13 " Deviceforcondensingadraftedfiberstrand " in 2000, the patent No. 6073314; Department of Intellectual Property of U.S. invention disclosed patent on June 13 " Deviceforcondensingadraftedfiberstrand " in 2000, the patent No. 6073314; Department of Intellectual Property of U.S. invention disclosed patent on July 4 " Arrangementforcondensingadraftedfiberstrand " in 2000, the patent No. 6082089; Department of Intellectual Property of U.S. invention disclosed patent on January 9 " Transportbeltfortransportingafiberstrandtobecondensed " in 2001, patent No. US6170126B1; Department of Intellectual Property of U.S. invention disclosed patent on July 24th, 2001 " Arrangementandmethodforcondensingadraftedfiberstrandandm ethodformakingyarnthereform ", patent No. US6263656B1; Department of Intellectual Property of U.S. invention disclosed patent on August 14 " Apparatusforcondensingadraftedstrand " in 2001, patent No. US6272834B1; Department of Intellectual Property of U.S. invention disclosed patent on May 29 " Condensingzoneforaspinningmachine " in 2001, patent No. US6237317B1. The central principle of above-mentioned Advance of Compact Spinning Technology patent complicated legal case is all pin ring spinning process, compact spinning triangular space fiber strip, strengthens the control of fiber strip edge fiber, effectively reduces spinning process fiber head end and exposes, reduces Yarn filoplume; But closely spinning and eliminate spinning triangular zone, not, cohesive force is not enough, and skin still has filoplume to expose for the inside and outside transfer of yarn body internal fiber, after yarn body stands to rub, filoplume still increases severely; Particularly at present by the Advance of Compact Spinning Technology of airflow concentration, only that high grade cotton yarn filoplume reducing effect is obvious, thick special Yarn filoplume reducing effect is poor.
The special reduction filoplume device used at present adopts jet-impingement form, it is arranged between front roller and snail wire, the filoplume utilizing the revolution of air-flow to make to have been formed pastes volt in yam surface, such as Department of Intellectual Property of U.S. invention disclosed patent on April 10 " methodandapparatusyarntreatment " in 1979, the patent No. 41481779, Department of Intellectual Property of U.S. invention disclosed patent on August 22 " methodandapparatusformodifyingspuntextileyarn " in 1989, the patent No. 5263311. These research essential difference are owing to the difference of airflow injection device causes yam surface fiber Impact direction different, thus produce different winding effects and cause the difference of Yarn filoplume eradicating efficacy. But due to these devices can only be arranged on twist triangle zone after (because the fiber in twist triangle zone becomes bulk fibre shape substantially, the air-flow of injection can cause fiber movement chaotic and break end), it is yarn and yam surface filoplume that its air-flow brushes object, the flow rotation effect of being bullied brushing two objects is different, it is achieved simply to paste the form of volt and lax winding, filoplume is stayed yam surface; In later process (such as winder) is processed, the fiber pulling out yarn surface structure is taken out in parts friction, and the filoplume of lax docile and winding reveals again, does not reach the real effect eliminating filoplume.
For winding procedure high-speed friction, cause yam surface structural impairment, filoplume increases in a large number, powerful decline, require supporting sizing operation, increase the problem such as starching difficulty and sizing cost, filoplume flattening device is set at winding procedure, suppress the generation of filoplume, later process production and raising end product quality tool are of great significance. The method of current reducing resultant yarn filoplume after deliberation mainly concentrates on and reduces Winding yarn filoplume device; Although relevant patent documentation has a lot, but the ultimate principle adopted is identical, namely adopt on cheese winder at yarn and carry out advancing yarn separating sth. made by twisting-twisting mode, make yam surface filoplume be wound on yam surface, reach the object reducing filoplume. Representative patent documentation has: european patent number is EP0866014A2, publication date on 09 23rd, 1998, invention and created name is AutoWinder, this application complicated legal case adopts the mechanical effect of the false sth. made by twisting dish of revolution in winding process flow process, wandering fibre is come, to reduce Yarn filoplume with it to yarn to subsides volt along the sth. made by twisting of yarn; U.S. Patent number is US6374588B1, publication date on 04 23rd, 2002, invention and created name is Hairinesscontrollingdeviceandwinder, this application complicated legal case adopts the mechanical effect of the false sth. made by twisting dish of revolution in winding process flow process, make wandering fibre along the sth. made by twisting of yarn to subsides volt on yarn body trunk, to reduce Yarn filoplume; European patent number is EP1146002A2; publication date on October 17th, 2001; invention and created name is Automaticwinderandhairinesssuppressingdevice; this application complicated legal case utilizes air vortex pipe, by the mechanical function of swirling eddy, filoplume is coated to it yarn again; to reduce filoplume; but analyzing principle, only according to the looping effect of air-flow, its covered effect is not good; European patent number EP1013803A2, publication date on 06 28th, 2000, invention and created name is Hairinesssuppressingdeviceforautomaticwinder, this application complicated legal case uses air vortex pipe equally, by air-flow, yarn is rotated, when the yarn rotated is when switchboard (regulatingplate), fiber package is made to be entangled in it yarn, to reduce filoplume; China Patent No. is ZL99127507.1, publication date on 07 05th, 2000, invention and created name is the filoplume flattening device of automatic winding machine, this application complicated legal case uses air vortex pipe equally, by air-flow, yarn is rotated, but this patent is by adding cartridge controller at device two ends, to ensure that yarn produces false twist effect along own axes revolution, it is to increase reduce the efficiency of Yarn filoplume. In addition, China Patent No. is ZL200710052991.8, publication date on 01 23rd, 2008, invention and created name is a kind of method of reducing resultant yarn filoplume, this application complicated legal case provides a kind of and adopts the false mode twisting with the fingers flatiron, carrying out the yarn of winder and knitting process attaching online and wrap yarn filoplume, few part filoplume is involved in yarn body, it is achieved suppress the order that Yarn filoplume increases in winder or knitting process. The method of above-mentioned minimizing yam surface filoplume and device, common ground is to be lodged Yarn filoplume by air-flow or mechanical type, again looping on yarn is dry; But in whole filoplume flattening, again looping process, all not having actively effectively to hold the effect of holding, filoplume flattening, looping structure is loose again, and yarn top layer densification degree does not improve, and the filoplume of reduction stands friction and is easy to again rebound.
The above-mentioned Yarn filoplume control to winder, warping, the yarn use procedure such as knitting as can be seen here, existing method common ground is: when non-positive hold hold filoplume head end, yarn is carried out false twist with the fingers or air-flow brushes looping, by stretch out yam surface most filoplumes with loosely form winding, docile in yarn face, fine and close structural nexus cannot be formed between filoplume fibre and yarn body, only visually realize filoplume and reduce; For adopting the form separated and twist with the fingers-twist, attaching in filoplume process, the yarn local twist is subject to dynamic transfer and redistribution, the more weak position of the twist occurs, is subject to yarn tension and stretches and worsen yarn body trunk uniformity coefficient. More crucially, in later process, along with yarn is subject to the friction of parts, these lax windings, docile are easy to again stretch out yam surface formation filoplume at the fiber of yam surface, and the processing of yarn later process and the quality (especially knit product quality) of the finished product do not have essence improvement.
Summary of the invention
For above-mentioned existing problems, it is an object of the invention to provide a kind of actively holding and hold the rotary device improving yarn surface structure, effectively crinosity plumage, outer lax short fiber yarn surface structure are carried out bright and clean densification, its technical solution is:
A kind of actively holding holds the rotary device improving yarn surface structure, by turner, air channel pedestal, miniature motor, steady arm forms, turner is by cone-shaped hood, turning axle is formed, cone-shaped hood and turning axle are integrated, cone-shaped hood is positioned at turning axle front end, the cone surface of cone-shaped hood has equally distributed miniature pore, rotating shaft center has cylindrical channel, air channel pedestal is provided with air channel, pedestal center, air channel is provided with bearing housing holes, the 2nd bearing it is provided with in bearing housing holes, 3rd bearing, bearing housing holes and the 2nd bearing, shrink-fit between 3rd bearing, pedestal front end, air channel is circular cone shape, should with cone-shaped hood shape, the circular cone shape conical surface has along the equally distributed blast inlet in conical surface direction, pedestal front end, air channel afterbody is cylindrical, cylinder is provided with the first bearing, shrink-fit between cylinder and the first bearing, air channel pedestal sidewall sets out pore, production well is connected with air channel, the cone-shaped hood tail end of turner is sleeved on the first bearing, shrink-fit between the cone-shaped hood tail end of turner and the first bearing, the turning axle of turner is inserted in the 2nd bearing, in 3rd bearing, turning axle and the 2nd bearing, shrink-fit between 3rd bearing, pedestal rear end, air channel is provided with end-blocking nut, end-blocking nut is positioned at the junction of the 3rd bearing and turning axle, the main shaft center of miniature motor is hollow shape, main shaft interference is in turning axle rear end, steady arm is by shaft collar, stationary shaft is formed, shaft collar and stationary shaft are integrated, stationary shaft center has yarn passage, yarn passage is stepped, yarn channel inlet section diameter is less than outlet section diameter, shaft collar is fixedly connected on stationary shaft rear end, stationary shaft activity is inserted in the cylindrical pipe of main shaft, in the cylindrical channel of rotating shaft center, stationary shaft front end is positioned at turning axle front port place, ball spout established by stationary shaft front end outer side wall, ball it is provided with in ball spout, miniature motor is positioned at end-blocking nut, between shaft collar, miniature motor one end is fixedly connected with end-blocking nut, the other end is fixedly connected with shaft collar.
Described miniature hole diameter is less than 100 ��m.
Described yarn channel inlet section diameter and outlet section diameter ratio are 0.2-0.7.
By owing to have employed above technical scheme, compared with prior art, a kind of actively the holding of the present invention holds the rotary device improving yarn surface structure, its advantage is: the present invention adopts and arranges cone-shaped hood on turner, the cone surface of cone-shaped hood has equally distributed miniature pore, air channel pedestal is provided with air channel, pedestal front end, air channel is circular cone shape, should with cone-shaped hood shape, the circular cone shape conical surface has the structure design of blast inlet, when making air channel pedestal external connecting negative pressure vacuum fan, produce negative pressure in turner cone-shaped hood, possess the effect of absorption filoplume, adopt the main shaft interference of miniature motor in turning axle rear end, cone-shaped hood is driven to carry out the structure design of high speed rotating, yam surface filoplume handled by realization is attracted on cone-shaped hood outside surface, synchronous rotary motion is done with cone-shaped hood, simultaneously at yarn feeder connection place, continue compact winding on the trunk top layer of the yarn run, to the bright and clean densification of yarn surface structure, significantly improve yarn abrasion performance, anti-the taking out of yarn surface fibre pulls out performance, solve and take to occur that filoplume winding and docile are lax during the dry main body untwisting-twisting method of yarn, untwisting recurring structure is lax and causes the dry deterioration of bar, follow-up stand the friction problem such as filoplume bounce-back. the present invention is applied widely: first, device is adjustable to yarn bright and clean densification degree, turner speed of rotation is adjustable in bigger speed range: yarn speed is certain, and turner rotating speed is more big, the bright and clean densification degree of yarn surface structure is more big, and the yarn variety that therefore can process is many, secondly, the yarn that high, low speed is run all can be carried out bright and clean densification: yarn is in 5-1200 m/min of operational speed range, the bright and clean densification degree of yarn is certain, and yarn travelling speed is more fast, turner rotating speed is more big, can meet with the use of different yarns manufacturing procedure. present configuration is reasonable, easy to operate, is easy to big area and promotes the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the working state schematic representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention a kind of actively held and hold the rotary device improving yarn surface structure and be described in further detail.
See accompanying drawing.
A kind of actively holding holds the rotary device improving yarn surface structure, by turner 1, air channel pedestal 5, miniature motor 14, steady arm forms, turner 1 is by cone-shaped hood, turning axle 8 is formed, cone-shaped hood and turning axle 8 are integrated, cone-shaped hood is positioned at turning axle 8 front end, the cone surface of cone-shaped hood has equally distributed miniature pore 10, miniature hole diameter is less than 100 ��m, turning axle 8 center has cylindrical channel, air channel pedestal 5 is provided with air channel 3, air channel pedestal 5 center is provided with bearing housing holes, the 2nd bearing 11 it is provided with in bearing housing holes, 3rd bearing 6, bearing housing holes and the 2nd bearing 11, shrink-fit between 3rd bearing 6, air channel pedestal 5 front end is circular cone shape, should with cone-shaped hood shape, the circular cone shape conical surface has along conical surface direction equally distributed blast inlet 2, air channel pedestal 5 front end afterbody is cylindrical, cylinder is provided with the first bearing 4, shrink-fit between cylinder and the first bearing 4, air channel pedestal 5 sidewall sets out pore 12, production well 12 is connected with air channel 3, the cone-shaped hood tail end of turner 1 is sleeved on the first bearing 4, shrink-fit between the cone-shaped hood tail end of turner 1 and the first bearing 4, the turning axle 8 of turner 1 is inserted in the 2nd bearing 11, in 3rd bearing 6, turning axle 8 and the 2nd bearing 11, shrink-fit between 3rd bearing 6, air channel pedestal 5 rear end is provided with end-blocking nut 7, end-blocking nut 7 is positioned at the junction of the 3rd bearing 6 with turning axle 8, main shaft 13 center of miniature motor 14 is hollow shape, main shaft 13 interference is in turning axle 8 rear end, steady arm is by shaft collar, stationary shaft is formed, shaft collar and stationary shaft are integrated, stationary shaft center has yarn passage 9, yarn passage 9 is stepped, yarn passage 9 inlet section diameter is less than outlet section diameter, yarn passage 9 inlet section diameter and outlet section diameter ratio are 0.2-0.7, yarn passage 9 inlet section diameter and outlet section diameter ratio are more little, after process, yarn surface structure is more fine and close, shaft collar is fixedly connected on stationary shaft rear end, stationary shaft activity is inserted in the cylindrical pipe of main shaft 13, in the cylindrical channel at turning axle 8 center, stationary shaft front end is positioned at turning axle 8 front port place, ball spout established by stationary shaft front end outer side wall, ball it is provided with in ball spout, miniature motor 14 is positioned at end-blocking nut 7, between shaft collar, miniature motor 14 one end is fixedly connected with end-blocking nut 7, the other end is fixedly connected with shaft collar. miniature motor 14 external source, turner 1 is made to carry out high speed rotating, production well 12 external connecting negative pressure vacuum fan, make to produce in turner 1 cone-shaped hood negative pressure, the trunk of the single yarn advanced with 5-1200 m/min enters yarn passage 9 center, and keep tensioning straight configuration, the surface hairiness of yarn is by negative pressure exhausting effect, it is attracted on cone-shaped hood outside surface, synchronous rotary motion is done with cone-shaped hood, cone-shaped hood sense of rotation is consistent with yarn twist direction, simultaneously in yarn passage 9 ingress, continue compact winding on the trunk top layer of the yarn run, realize the bright and clean densification of yarn surface structure, yarn after process exports from yarn passage 9 and exports. due to adopt limit absorption hold hold Yarn filoplume, limit rotate be wound around filoplume mode yarn surface fibre is processed, effectively complete the task that whole Yarn filoplume carries out fine and close winding at yarn body surface layer, realize the bright and clean densification of staple surface structure, it is to increase the smooth finish of short fiber yarn and wear resistance.
Below in conjunction with different yarns production process, the embody rule of the present invention is further elaborated.
Embodiment 1: in ring spinning process, improves ring spinning resultant yarn smooth finish
On ring spinning frame, adopt marquis's card fixer, hold the rotary device improving yarn surface structure be fixedly mounted on through air channel pedestal 5 between ring spinning frame front roller nip and snail wire by actively holding, miniature motor 14 obtains energy by being connected with ring spindle yarn locomotive head supply lead and drives turner 1, turner 1 is rotated with the speed of 10000-25000 rev/min, actively hold and hold the rotary production well 12 external connecting negative pressure vacuum fan of device by air channel pedestal 5 improving yarn surface structure so that in the cone-shaped hood of turner 1, produce negative pressure. the converted top got off from Rove Package unwinding is through ring spinning frame rear roller, back cot, middle roller, mid-rubber roll, in lower apron, middle upper leather ring, front roller, after the drafting system drawing-off of front rubber roll composition, by front roller, the front roller nip of front rubber roll composition exports, the yarn exported forms Z twisted yarn by twisting reactive force, yarn exports with the speed of 10-25 m/min and advances, the trunk of yarn enters in yarn passage 9, the trunk of yarn keeps tensioning straight configuration, the surface hairiness of yarn is by negative pressure exhausting effect, it is attracted on cone-shaped hood outside surface, synchronous rotary motion is done with cone-shaped hood, rotary motion direction be Z twist with the fingers to, effectively hold the Yarn filoplume held by tightly looping on the trunk of high speed moving yarn, yarn surface structure is carried out bright and clean densification, yarn after process exports from yarn passage 9 and exports, successively through ring spinning frame snail wire, guiding principle, Steel Traveler, finally it is wound up on spinning frame spool.
Embodiment 2: in winder process, improves the ring spun yarn bright and clean density of line surface structure
In fully-automatic spooling machine, adopt marquis's card fixer, hold the rotary device improving yarn surface structure be fixedly mounted on through air channel pedestal 5 between automatic winding organic electronic yarn cleaner and upper wax apparatus by actively holding, miniature motor 14 is connected acquisition energy and drives turner 1 with supply lead in controlling box, turner 1 is made to carry out high speed rotating with the speed of 60000 revs/min, actively hold and hold the rotary production well 12 external connecting negative pressure vacuum fan of device by air channel pedestal 5 improving yarn surface structure so that in the cone-shaped hood of turner 1, produce negative pressure. the Z twisted yarn got off from cop package unwinding is with the travelling speed of 600 ms/min, break device through air ring successively, pre-yarn cleaner, tension device, electronic clearing device, guide to enter to hold by preposition positioned centrally snail wire and hold rotary reduction Yarn filoplume device, wherein the trunk of yarn enters yarn passage 9 center, the trunk of yarn keeps tensioning straight configuration, the surface hairiness of yarn is by negative pressure exhausting effect, it is attracted on cone-shaped hood outside surface, synchronous rotary motion is done with cone-shaped hood, rotary motion direction be Z twist with the fingers to, effectively hold the hairiness H held by tightly looping on the trunk S of high speed moving yarn Y, yarns Y surface structure is carried out bright and clean densification, yarns Y after process exports from yarn passage 9 and exports, then successively through upper wax apparatus, groove drum, finally it is wound up on fully-automatic spooling machine package.
Claims (3)
1. actively hold and hold the rotary device improving yarn surface structure for one kind, it is characterized in that: described device is by turner (1), air channel pedestal (5), miniature motor (14), steady arm forms, turner (1) is by cone-shaped hood, turning axle (8) is formed, cone-shaped hood and turning axle (8) are integrated, cone-shaped hood is positioned at turning axle (8) front end, the cone surface of cone-shaped hood has equally distributed miniature pore (10), turning axle (8) center has cylindrical channel, air channel pedestal (5) is provided with air channel (3), air channel pedestal (5) center is provided with bearing housing holes, the 2nd bearing (11) it is provided with in bearing housing holes, 3rd bearing (6), bearing housing holes and the 2nd bearing (11), shrink-fit between 3rd bearing (6), air channel pedestal (5) front end is circular cone shape, should with cone-shaped hood shape, the circular cone shape conical surface has along the equally distributed blast inlet in conical surface direction (2), air channel pedestal (5) front end afterbody is cylindrical, cylinder is provided with the first bearing (4), shrink-fit between cylinder and the first bearing (4), air channel pedestal (5) sidewall sets out pore (12), production well (12) is connected with air channel (3), the cone-shaped hood tail end of turner (1) is sleeved on the first bearing (4), shrink-fit between the cone-shaped hood tail end of turner (1) and the first bearing (4), the turning axle (8) of turner (1) is inserted in the 2nd bearing (11), in 3rd bearing (6), turning axle (8) and the 2nd bearing (11), shrink-fit between 3rd bearing (6), air channel pedestal (5) rear end is provided with end-blocking nut (7), end-blocking nut (7) is positioned at the junction of the 3rd bearing (6) with turning axle (8), main shaft (13) center of miniature motor (14) is hollow shape, main shaft (13) interference is in turning axle (8) rear end, steady arm is by shaft collar, stationary shaft is formed, shaft collar and stationary shaft are integrated, stationary shaft center has yarn passage (9), yarn passage (9) is stepped, yarn passage (9) inlet section diameter is less than outlet section diameter, shaft collar is fixedly connected on stationary shaft rear end, stationary shaft activity is inserted in the cylindrical pipe of main shaft (13), in the cylindrical channel at turning axle (8) center, stationary shaft front end is positioned at turning axle (8) front port place, ball spout established by stationary shaft front end outer side wall, ball it is provided with in ball spout, miniature motor (14) is positioned at end-blocking nut (7), between shaft collar, miniature motor (14) one end is fixedly connected with end-blocking nut (7), the other end is fixedly connected with shaft collar.
2. a kind of actively holding as claimed in claim 1 holds the rotary device improving yarn surface structure, it is characterised in that: described miniature hole diameter is less than 100 ��m.
3. a kind of actively holding as claimed in claim 1 holds the rotary device improving yarn surface structure, it is characterised in that: described yarn passage (9) inlet section diameter and outlet section diameter ratio are 0.2-0.7.
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|---|---|
| CN103981602A (en) | 2014-08-13 |
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