CN107604490B - Spinning device and method for auxetic staple fiber yarn based on ring spinning system - Google Patents
Spinning device and method for auxetic staple fiber yarn based on ring spinning system Download PDFInfo
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Abstract
The invention provides a spinning device of a auxetic staple fiber yarn based on a ring spinning system, which comprises: the short fiber yarn feeding and drafting mechanism is used for feeding short fiber rough yarns and primarily drafting and flattening the short fiber rough yarns to increase the cohesive force among fibers; the drawing and shaping mechanism is used for drawing the primarily drawn and flattened short fiber roving to form a drawing and expanding structural shape, and shaping the short fiber roving under the action of heat to form a drawing and expanding structure forming and shaping mechanism of the drawing and expanding short fiber yarn; and the twisting and winding mechanism is used for twisting the auxetic staple fiber yarn and winding the auxetic staple fiber yarn onto a bobbin. The invention also provides a spinning method of the auxetic staple fiber yarn based on the ring spinning system. The invention can spin the staple fiber yarn which is formed by twisting the auxetic structure, has obvious auxetic effect and stable structure, is suitable for various mature spinning instruments, such as ring spinning, friction spinning and the like, is convenient to implement, has lower cost and is suitable for continuous production, popularization and application.
Description
Technical Field
The invention relates to a spinning device and a method of staple fiber yarn with obvious auxetic effect, which is formed by twisting an auxetic structure, and belongs to the technical field of spinning.
Background
Auxetic material refers to a material having a negative poisson's ratio. Conventional materials undergo a contraction (or expansion) deformation perpendicular to the direction of the applied force when they are stretched (or compressed) in a certain direction. An auxetic material is stretched (or compressed) in a certain direction, and is deformed by expansion (or contraction) perpendicular to the direction of the applied force. The draw-and-swell yarn is also called negative-poise ratio yarn, and under the action of a certain axial tension, the radial profile of the yarn is increased. Researches find that the auxetic material has negative Poisson's ratio and other unique properties such as improved shear rigidity, fracture toughness, indentation resistance, energy absorption capacity (ultrasonic wave, sound and damping) and the like compared with the traditional material, and has potential application in various fields: the automotive industry (seat cushions, safety belts), aerospace (wing panels, fairings), human body protection (helmets, kneepads, gloves), biomedicine (artificial blood vessels, sutures, intelligent textiles), other fields (filter materials, sensors, sonar devices), and the like.
In recent years, the structural design and forming method of the auxetic yarn have attracted great attention, and many scholars have conducted preliminary research and study on the auxetic yarn. Patents WO2007/125352a1, US2011/0209557a1, 2011/0039088a1 all propose a negative poisson ratio yarn structure in which a rigid yarn is spirally wrapped on an easily elongatable and deformable core yarn, wherein the negative poisson ratio effect of the material proposed in patent 2011/0039088a1 is that the wrapped filament sensitive to humidity contracts upon external humidity changes, causing the core yarn to bend, causing the yarn diameter to increase. The patent refers to the description of a negative poisson's ratio yarn structure, and does not propose a specific spinning device and method, and the yarn structure is prone to problems such as uneven twist and stability. The negative poisson ratio yarn structure related in the patent WO2010/146347A1 is characterized in that a thin thread which is not extensible penetrates through a thick component with high elasticity in a spiral mode, under the action of axial tension, the thin thread is straightened to cause buckling of an outer covering material to generate a stretching and expanding effect, the structural stability is good, and the negative poisson ratio effect is small due to limited yarn deformation. Patent CN2013/103361811a proposes a negative poisson ratio yarn structure and a manufacturing method thereof. The yarn structure feeds the first yarns with large tensile modulus and the second yarns with small tensile modulus into the slotted holes at the same time in an alternate arrangement mode, and the first yarns and the second yarns are converged and twisted under the rotation of the rotary table to form negative Poisson ratio yarns. The method requires that the number of the first yarns and the number of the second yarns are the same and are more than two, and the yarn structure is mainly formed through twisting action on each component, so that the selection limitation on the types of the yarns is strong in order to provide a forming structure of the yarns, and the application field of the negative Poisson ratio yarns is limited.
A specific spinning device and method for the negative Poisson ratio yarn are provided in a Bing Ming Master graduation thesis of Donghua university, namely 'structural forming and modeling characterization of the negative Poisson ratio yarn', a series of researches are made on a spinning process, the negative Poisson ratio yarn with a spiral wrapping structure is spun through a grooved front roller, and experimental tests and theoretical analysis are carried out on the Poisson ratio of the yarn. The yarn path control force of the yarn wrapping and winding by adopting the grooved front roller in the spinning device is insufficient, and the obtained negative-poise ratio yarn has the problems of uneven wrapping angle and structure and the like.
In summary, the conventional spinning device and method for the auxetic composite yarn are not mature, are limited to filaments in material selection, are limited to spiral wrapping structures in structure, and have the problems of loose structure, poor stability and applicability and the like. Therefore, a simple and universal spinning device and method are urgently needed to spin composite yarns with stable structures, good performance and obvious auxetic effect so as to promote the wide application of the composite yarns in various fields.
Disclosure of Invention
The invention aims to solve the technical problem of providing a spinning device and a spinning method which take short fiber roving as a raw material, have stable structure, obvious auxetic effect and simple and efficient process.
In order to solve the above technical problems, an aspect of the present invention is to provide a spinning device for a ring spun drawn and bulked spun yarn, including:
the short fiber yarn feeding and drafting mechanism is used for feeding short fiber rough yarns and primarily drafting and flattening the short fiber rough yarns to increase the cohesive force among fibers;
the drawing and shaping mechanism is used for drawing the primarily drawn and flattened short fiber roving to form a drawing and expanding structural shape, and shaping the short fiber roving under the action of heat to form a drawing and expanding structure forming and shaping mechanism of the drawing and expanding short fiber yarn;
the twisting and winding mechanism is used for twisting the auxetic staple fiber yarn and winding the auxetic staple fiber yarn onto a bobbin;
the short fiber yarn feeding and drafting mechanism, the stretch structure forming and shaping mechanism and the twisting and winding mechanism are sequentially arranged from top to bottom.
Preferably, the short fiber yarn feeding and drafting mechanism comprises an upper beam, the upper end of a short fiber roving bobbin wound with short fiber roving is fixed on the upper beam, a rear roller is arranged below the upper beam, and a middle roller is arranged below the rear roller.
Preferably, the forming and shaping mechanism of the auxetic structure comprises a front upper roller and a front lower roller which are arranged below the middle roller, surface grooves in the auxetic structure are arranged on the surfaces of the front upper roller and the front lower roller, and the hot steam supply device is connected with the surface grooves on the front upper roller and the front lower roller through hot air flow conduits.
Preferably, the twisting and winding mechanism comprises a ring bobbin, a ring plate is arranged on the ring bobbin, a steel traveler is arranged at the end part of the ring plate, and a yarn guide hook is arranged above the steel traveler and is positioned below the front upper roller and the front lower roller.
More preferably, the rear roller and the middle roller form a drafting zone, and the drafting multiple of the drafting zone is controlled and adjusted through the rotating speed ratio of the rear roller and the middle roller.
More preferably, the number of the short fiber roving bobbins is 1-10, and more than 3 auxetic structural type repeating units are formed in the transverse direction.
More preferably, the short fiber roving is a sliver of short fiber roving of various specifications, and comprises natural fibers and chemical fibers, such as cotton fibers, wool fibers, viscose fibers, synthetic fibers and blended fibers thereof.
More preferably, the surface grooves of the contact positions of the front upper roller and the front lower roller are distributed in the same way.
Preferably, the auxetic structure includes an inwards concave hexagon, a herringbone, a double arrow shape, an inwards concave honeycomb, a star network, an inwards concave rhombus, a center rotating rectangle, a center rotating triangle, and a center rotating tetrahedron.
The invention also provides a spinning method of the auxetic staple fiber yarn based on the ring spinning system, which is characterized by comprising the following steps: the spinning device for the auxetic staple fiber yarn based on the ring spinning system comprises the following steps:
step 1: fixing the upper end of a short fiber roving bobbin wound with short fiber roving on an upper beam, feeding the short fiber roving unwound from the short fiber roving bobbin into a rear roller jaw, and outputting the short fiber roving from a front jaw of a middle roller after passing through a drafting zone formed by the rear roller and the middle roller;
step 2: after the short fiber rough yarn is primarily drafted and flattened in the step 1, feeding the rough yarn into jaws of a front upper roller and a front lower roller; the hot steam containing the setting agent is generated by a hot steam supply device and is conveyed to surface grooves on a front upper roller and a front lower roller through a hot air flow guide pipe, and the short fiber roving forms the auxetic short fiber yarn of an auxetic structure under the traction action of double air flows formed by the front upper roller and the front lower roller and is synchronously set under the action of the hot steam containing the setting agent and then is output;
and step 3: the auxetic short fiber yarns output from the front jaws of the front upper roller and the front lower roller are twisted by the yarn guide hook and the steel wire ring, and are uniformly wound on the ring bobbin by vertically moving up and down through the ring rail.
Preferably, in the step 2, the yarn is positioned at the center of the double air flows formed by the front upper roller and the front lower roller; the track of the hot air flow is consistent with the auxetic structure.
Preferably, the temperature and the flow rate of the hot steam are adjustable, and the hot steam contains a setting agent specially used for rapid setting of the fibers.
Preferably, the hot steam is generated by a hot steam supply device and is conveyed to the surface groove from the inner parts of the front upper roller and the front lower roller through a hot air flow guide pipe, the tracks and the distribution of the hot air flows of the front upper roller and the front lower roller are consistent with the auxetic structure, and meanwhile, the hot steam distribution of the contact positions of the front upper roller and the front lower roller, but not the corresponding positions of the upper part and the lower part, is the same.
Preferably, the front roller with the surface grooves and the hot steam supply device can be applied to a conventional ring spinning machine for preparing the auxetic staple fiber yarn.
Preferably, the front roller with surface grooves and the hot steam supply device can be applied to a conventional friction spinning machine to prepare the auxetic staple fiber yarn.
The invention changes the yarn strip input into the stretch-expansion structure forming and shaping mechanism into the fiber net with the stretch-expansion structure, and then the fiber net can be endowed with the stretch-expansion structure shape, and the fiber net is bunched into the stretch-expansion strip and then twisted into the stretch-expansion yarn; and the sizes of all structures of the forming and shaping mechanism of the stretching structure can be reduced and enlarged, so the forming and shaping mechanism of the stretching structure can also be used for spinning systems such as rotor spinning, vortex spinning, friction spinning, electrostatic spinning and the like.
The invention focuses on a simple and convenient auxetic structure forming and shaping mechanism designed in a front roller output area of a ring spinning system, and endows roving output from a jaw of a front roller with an auxetic structure fiber net, and then twists the roving in a twisting triangular area to form twisted yarn of the auxetic structure fiber net. The yarn has a auxetic and a crimp effect.
The principle of the invention is as follows: the auxetic staple fiber yarn is formed by twisting continuous structures with auxetic effect, when the auxetic staple fiber yarn is subjected to axial tensile force, all auxetic structures expand in the direction of vertical acting force, the integral apparent profile of the staple fiber yarn is enlarged due to the accumulative action of the auxetic structures, and the yarn has negative Poisson ratio effect.
The technical method for realizing the principle comprises the following steps: the staple fiber roving forms the shape of an auxetic structure under the traction action of double air flows formed by the front upper roller and the front lower roller, is synchronously shaped under the action of hot steam containing a shaping agent and then is output, so that the spinning of the staple fiber yarn with the obvious auxetic effect, which is formed by twisting the auxetic structure, is completed. Meanwhile, the spinning method is suitable for various mature spinning instruments, such as ring spinning, friction spinning and the like, is convenient to implement, has low cost, and is suitable for continuous production, popularization and application.
Compared with the prior art, the invention has the following beneficial effects:
1. various types of short fiber rough yarns are used as raw materials, the limitation that the existing auxetic composite yarn uses elastic filaments and rigid filaments as raw materials is broken through, and the applicable range of the auxetic composite yarn is improved;
2. the auxetic staple fiber yarn is formed by twisting an auxetic structure, has a stable structure and an obvious auxetic effect, and avoids the problems of poor stability and applicability such as loose slippage and the like of the existing auxetic composite yarn with a spiral wrapping structure;
3. the draw-swelling staple fiber yarn is synchronous in drawing forming and shaping through hot air flow, the spinning flow is short, and the spinning efficiency is high;
4. the spinning method is suitable for various mature spinning instruments, such as ring spinning, friction spinning and the like, and has strong applicability and convenient implementation.
Drawings
FIG. 1 is a front view of a spinning apparatus for an auxetic spun yarn based on a ring spinning system;
FIG. 2 is a side view of a spinning apparatus based on a ring spinning system for auxetic spun yarns;
FIG. 3 is a distribution diagram of grooves on the surface of the front roller;
FIG. 4 is a schematic view of the surface grooves on the front upper roller and the front lower roller being concave hexagons;
FIG. 5 is a schematic structural diagram of a concave hexagonal auxetic staple fiber yarn structural unit before and after stretching; (a) before stretching; (b) after stretching;
FIG. 6 is a schematic diagram of the structure before and after stretching of a double-headed arrow-shaped auxetic staple fiber yarn structure unit; (a) before stretching; (b) after stretching;
description of reference numerals:
1-short fiber yarn feeding and drafting mechanism, 11-upper beam, 12-short fiber roving bobbin, 13-short fiber roving, 14-rear roller and 15-middle roller; 2-a forming and shaping mechanism of a stretching structure, 21-a front upper roller, 22-a front lower roller, 23-a surface groove, 24-a hot steam supply device and 25-a hot air flow guide pipe; 3-twisting and winding mechanism, 31-guide hook, 32-auxetic staple fiber yarn, 33-ring bobbin, 34-traveler and 35-ring rail.
Detailed Description
The invention will be further illustrated with reference to the following specific examples.
Fig. 1 and fig. 2 are a front view and a side view of a spinning device of an auxetic staple fiber yarn based on a ring spinning system, respectively, the spinning device of the auxetic staple fiber yarn based on the ring spinning system is composed of a staple fiber yarn feeding and drafting mechanism 1, an auxetic structure forming and setting mechanism 2, and a twisting and winding mechanism 3, and the staple fiber yarn feeding and drafting mechanism 1, the auxetic structure forming and setting mechanism 2, and the twisting and winding mechanism 3 are sequentially arranged from top to bottom.
The short fiber yarn feeding and drafting mechanism 1 comprises an upper beam 11, a short fiber roving bobbin 12, a rear roller 14, a middle roller 15 and the like. The upper end of a short fiber roving bobbin 12 is fixed on an upper beam 11, short fiber roving 13 is wound on the short fiber roving bobbin 12, the short fiber roving 13 is unwound from the short fiber roving bobbin 12 and fed into a jaw of a rear roller 14, and the short fiber roving 13 is fed into a middle roller 15 after coming out of the rear roller 14; the back roller 14 and the middle roller 15 form a small drafting area, the short fiber roving 13 is drafted to increase the cohesive force among the fibers, and the drafting multiple is controlled and adjusted through the rotating speed ratio of the back roller 14 to the middle roller 15.
The forming and shaping mechanism 2 of the expanding structure is composed of a front upper roller 21, a front lower roller 22, a surface groove 23, a hot steam supply device 24 and a hot air flow duct 25. Referring to fig. 3, the front top roller 21 and the front bottom roller 22 are provided with surface grooves 23, one end of a hot air duct 25 is connected with a hot steam supply device 24, and the other end of the hot air duct 25 is conveyed to the surface grooves 23 from the insides of the front top roller 21 and the front bottom roller 22.
The hot air flow is generated by the hot steam supply device 24 and is conveyed to corresponding positions on the front upper roller 21 and the front lower roller 22 through the hot air flow guide pipe 25, and the hot air flow is used for drawing the short fiber roving 13 into the shape of the drawing and expanding structural formula and shaping the short fiber roving under the action of heat.
In addition, the surface grooves 23 of the front upper roller 21 and the front lower roller 22 and the tracks and the distribution of hot air flow are consistent with those of the auxetic structure; meanwhile, the grooves are distributed in the same way at the contact positions of the front upper roller 21 and the front lower roller 22, but not at the corresponding positions of the upper part and the lower part. During the spinning process, the yarn is in the center of the double air current formed by the front upper roller 21 and the front lower roller 22.
The twisting and winding mechanism 3 is composed of a yarn guide hook 31, a traveler 34, a ring rail 35, and a ring bobbin 33. The ring plate 35 is mounted on the ring bobbin 33, the end of the ring plate 35 is provided with a traveler 34, and the yarn guide hook 31 is positioned above the traveler 34. The auxetic staple fiber yarn 32 output from the front jaws of the front upper roller 21 and the front lower roller 22 is twisted by the yarn guide hook 31 and the traveler 34, and is uniformly wound on the ring bobbin 33 by vertically moving up and down by the ring rail 35.
The method of use of the apparatus of the present invention is illustrated in several specific examples.
Example 1
Preparing concave hexagon-auxetic cotton fiber yarn.
The surface grooves 23 on the front top roller 21 and the front bottom roller 22 are in the shape of concave hexagons, as shown in fig. 4.
Selecting a cotton staple fiber roving strand as a raw material, sequentially fixing the upper ends of a plurality of cotton staple fiber roving bobbins on an upper beam 11, unwinding the cotton staple fiber roving from the bobbins, feeding the cotton staple fiber roving into a jaw of a rear roller 14, and outputting the cotton staple fiber roving from a front jaw of a middle roller 15 after passing through a small drafting zone formed by the rear roller 14 and the middle roller 15; the rough cotton fiber yarn is fed into the jaws of a front upper roller 21 and a front lower roller 22 after being primarily drafted, forms a shape of a stretching and expanding structural formula under the traction action of double air flows formed by the front upper roller 21 and the front lower roller 22, is synchronously shaped under the action of hot steam containing a shaping agent and is output; the auxetic staple fiber yarn 32 output from the front jaws of the front upper roller 21 and the front lower roller 22 is twisted by the yarn guide hook 31 and the traveler 34, and is uniformly wound on the ring bobbin 33 by vertically moving up and down by the ring rail 35.
Schematic structural diagrams of the concave hexagonal auxetic staple fiber yarn structural unit before and after stretching are shown in figure 5.
Example 2
Double-headed arrow-shaped auxetic cotton fiber yarn.
The surface grooves 23 on the front top roller 21 and the front bottom roller 22 are shaped like double-headed arrows.
Selecting a cotton staple fiber roving strand as a raw material, sequentially fixing the upper ends of a plurality of cotton staple fiber roving bobbins on an upper beam 11, unwinding the cotton staple fiber roving from the bobbins, feeding the cotton staple fiber roving into a jaw of a rear roller 14, and outputting the cotton staple fiber roving from a front jaw of a middle roller 15 after passing through a small drafting zone formed by the rear roller 14 and the middle roller 15; the rough cotton fiber yarn is fed into the jaws of a front upper roller 21 and a front lower roller 22 after being primarily drafted, forms a shape of a stretching and expanding structural formula under the traction action of double air flows formed by the front upper roller 21 and the front lower roller 22, is synchronously shaped under the action of hot steam containing a shaping agent and is output; the auxetic staple fiber yarn 32 output from the front jaws of the front upper roller 21 and the front lower roller 22 is twisted by the yarn guide hook 31 and the traveler 34, and is uniformly wound on the ring bobbin 33 by vertically moving up and down by the ring rail 35.
Fig. 6 is a schematic drawing of the structure before and after stretching of the double-headed arrow-shaped auxetic staple fiber yarn structure unit.
Example 3
Preparing concave hexagon-auxetic wool fiber yarn.
The surface grooves 23 on the front top roller 21 and the front bottom roller 22 are in the shape of concave hexagons, as shown in fig. 4.
Selecting short fiber roving strands as raw materials, sequentially fixing the upper ends of a plurality of short fiber roving bobbins on an upper beam 11, unwinding cotton short fiber roving yarns from the bobbins, feeding the cotton short fiber roving yarns into a jaw of a rear roller 14, and outputting the cotton short fiber roving yarns from a front jaw of a middle roller 15 after passing through a small drafting zone formed by the rear roller 14 and the middle roller 15; the short fiber roving is fed into jaws of a front upper roller 21 and a front lower roller 22 after being primarily drafted, forms a shape of a stretching and expanding structural formula under the traction action of double air flows formed by the front upper roller 21 and the front lower roller 22, is synchronously shaped under the action of hot steam containing a shaping agent and is output; the auxetic staple fiber yarn 32 output from the front jaws of the front upper roller 21 and the front lower roller 22 is twisted by the yarn guide hook 31 and the traveler 34, and is uniformly wound on the ring bobbin 33 by vertically moving up and down by the ring rail 35.
The structure of the concave hexagonal auxetic staple fiber yarn structural unit before and after stretching is shown in figure 5.
Example 4
Double-headed arrow-shaped stretched viscose staple fiber yarn.
The surface grooves 23 on the front top roller 21 and the front bottom roller 22 are shaped like double-headed arrows.
Selecting short fiber roving strands as raw materials, sequentially fixing the upper ends of a plurality of short fiber roving bobbins on an upper beam 11, unwinding the short fiber roving from the bobbins, feeding the short fiber roving into a jaw of a rear roller 14, and outputting the short fiber roving from a front jaw of a middle roller 15 after passing through a small drafting zone formed by the rear roller 14 and the middle roller 15; the short fiber roving is fed into jaws of a front upper roller 21 and a front lower roller 22 after being primarily drafted, forms a shape of a stretching and expanding structural formula under the traction action of double air flows formed by the front upper roller 21 and the front lower roller 22, is synchronously shaped under the action of hot steam containing a shaping agent and is output; the auxetic staple fiber yarn 32 output from the front jaws of the front upper roller 21 and the front lower roller 22 is twisted by the yarn guide hook 31 and the traveler 34, and is uniformly wound on the ring bobbin 33 by vertically moving up and down by the ring rail 35.
Fig. 6 is a schematic drawing of the structure before and after stretching of the double-headed arrow-shaped auxetic staple fiber yarn structure unit.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be termed a second element, and, similarly, a second element may be termed a first element, without departing from the scope of example embodiments.
While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that the foregoing and other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.
Claims (7)
1. A spinning method of an auxetic staple fiber yarn based on a ring spinning system is characterized in that: the spinning device for the auxetic staple yarn based on the ring spinning system comprises the following components:
the short fiber yarn feeding and drafting mechanism (1) is used for feeding short fiber rough yarns and primarily drafting and flattening the short fiber rough yarns to increase the cohesive force among fibers;
the drawing and expanding structure forming and shaping mechanism (2) is used for drawing the primarily drawn and flattened short fiber roving to form a drawing and expanding structural shape and shaping the short fiber roving under the action of heat to form the drawing and expanding short fiber yarn;
a twisting and winding mechanism (3) for twisting the auxetic staple fiber yarn and winding the auxetic staple fiber yarn onto a bobbin;
the short staple yarn feeding and drafting mechanism (1), the stretch structure forming and shaping mechanism (2) and the twisting and winding mechanism (3) are sequentially arranged from top to bottom;
the short fiber yarn feeding and drafting mechanism (1) comprises an upper beam (11), the upper end of a short fiber roving bobbin (12) wound with short fiber rovings (13) is fixed on the upper beam (11), a rear roller (14) is arranged below the upper beam (11), and a middle roller (15) is arranged below the rear roller (14);
the forming and shaping mechanism (2) of the auxetic structure comprises a front upper roller (21) and a front lower roller (22) which are arranged below the middle roller (15), surface grooves (23) in auxetic structural shapes are formed in the surfaces of the front upper roller (21) and the front lower roller (22), and a hot steam supply device (24) is connected with the surface grooves (23) on the front upper roller (21) and the front lower roller (22) through a hot air flow conduit (25);
the spinning method comprises the following steps:
step 1: the upper end of a short fiber roving bobbin (12) wound with short fiber roving (13) is fixed on an upper beam (11), the short fiber roving (13) is unwound from the short fiber roving bobbin (12) and fed into a jaw of a rear roller (14), and is output from a front jaw of a middle roller (15) after passing through a drafting zone formed by the rear roller (14) and the middle roller (15);
step 2: after the short fiber roving (13) is subjected to primary drafting and flattening in the step 1, feeding the short fiber roving into jaws of a front upper roller (21) and a front lower roller (22); hot steam containing a setting agent is generated by a hot steam supply device (24) and is conveyed to surface grooves (23) on a front upper roller (21) and a front lower roller (22) through a hot air flow guide pipe (25), and the short fiber roving (13) forms the auxetic short fiber yarn (32) with an auxetic structure under the traction action of double air flows formed by the front upper roller (21) and the front lower roller (22) and is synchronously set and output under the action of the hot steam containing the setting agent;
and step 3: the auxetic short fiber yarn (32) output from the front jaws of the front upper roller (21) and the front lower roller (22) is twisted by a yarn guide hook (31) and a steel wire ring (34), and is uniformly wound on a ring bobbin (33) by vertically moving up and down by a ring rail (35).
2. A method of spinning an auxetic spun yarn based on a ring spinning system according to claim 1, wherein: the twisting and winding mechanism (3) comprises a ring bobbin (33), a ring plate (35) is arranged on the ring bobbin (33), a steel wire ring (34) is arranged at the end part of the ring plate (35), and a yarn guide hook (31) is arranged above the steel wire ring (34) and is positioned below the front upper roller (21) and the front lower roller (22).
3. A method of spinning an auxetic spun yarn based on a ring spinning system according to claim 1, wherein: the rear roller (14) and the middle roller (15) form a drafting zone, and the drafting multiple of the drafting zone is controlled and adjusted through the rotating speed ratio of the rear roller (14) to the middle roller (15).
4. A method of spinning an auxetic spun yarn based on a ring spinning system according to claim 1, wherein: the number of the short fiber roving bobbins (12) is 1-10, and more than 3 auxetic structural type repeating units are formed in the transverse direction; the short fiber roving (13) is a short fiber roving strand with various specifications and comprises natural fibers and chemical fibers.
5. A method of spinning an auxetic spun yarn based on a ring spinning system according to claim 1, wherein: the surface grooves (23) at the contact positions of the front upper roller (21) and the front lower roller (22) are distributed in the same way.
6. A method of spinning an auxetic spun yarn based on a ring spinning system according to claim 1, wherein: the auxetic structure comprises an inwards concave hexagon, a herringbone, a double arrow shape, an inwards concave honeycomb, a star network, an inwards concave rhombus, a center rotating rectangle, a center rotating triangle and a center rotating tetrahedron.
7. A method of spinning an auxetic spun yarn based on a ring spinning system according to claim 1, wherein: in the step 2, the yarn is positioned at the central position of double air flows formed by a front upper roller (21) and a front lower roller (22); the track of the hot air flow is consistent with the auxetic structure.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB201019796D0 (en) * | 2010-11-23 | 2011-01-05 | Univ Exeter The | Auxetic material articles |
| CN103938316B (en) * | 2014-04-22 | 2017-05-03 | 东华大学 | Device and method used for leveling ring spinning yarn hairiness |
| CN106968053B (en) * | 2017-03-06 | 2019-06-04 | 东华大学 | The processing unit (plant) and method of indent hexagon cellular structurally flexible and elastic auxetic fabric |
| CN106987956B (en) * | 2017-03-06 | 2019-06-25 | 东华大学 | The spinning apparatus of the uniform auxetic composite yarn of looping angle based on improved ring spinning technique |
| CN106987945B (en) * | 2017-03-06 | 2019-11-08 | 东华大学 | Carefully, firmly low bullet yarn actively winds thick, the soft high-elastic yarn preparation compound yarn feeding device of auxetic |
| CN107130329B (en) * | 2017-04-28 | 2019-03-29 | 东华大学 | The device and method of rock-steady structure auxetic composite yarn is prepared based on thermo-fuse bonding |
| CN107217390B (en) * | 2017-06-09 | 2019-09-27 | 东华大学 | A kind of device, method and purposes using high-temperature fusion method of electrostatic spinning preparation auxetic filament fiber |
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2017
- 2017-10-12 CN CN201710949573.2A patent/CN107604490B/en active Active
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