Half-slide matched device and its application of ultra-smoothly reconstructing yarn hairy structure

Abstract

A half-slide matched device and its application for ultra-smoothly reconstructing yarn hairy structure belong to a textile processing field. According to the half-slide matched device of the present invention, a vortex device static part and a vortex device moving part are matched. In practice, multiple devices are connected in tandem. When yarn moves, the parts of half-slide matched device are closed, for efficiently constraining and utilizing the vortex airflow. A directional jet tube one-directionally stretches hairiness on yarn surface to avoid hairiness random dispersion and entanglement, remove yarn surface impurities. Tandem-connected devices repeatedly superimpose and strengthen the reconstructed ultra-smooth yarn structure. The half-slide matched device can be opened when the yarn breaks, which facilitates splicing and maintenance. The half-slide matched device has a reasonable structure and is very convenient for wide application.

Claims

1. A half-slide matched device for ultra-smoothly reconstructing yarn hairy structure, comprising: a first sliding rod (9), a second sliding rod (10), a third sliding rod (11), a fixer (7), a connector (1), an air inlet tube (5), an air outlet tube (8), a vortex device static part and a vortex device moving part, wherein the vortex device static part and the vortex device moving part are matched; the vortex device static part comprises a yarn guide tube right part (12), a stationary spindle right part (4) and a vortex tube right part (6); the yarn guide tube right part (12) and the stationary spindle right part (4) are embedded in the vortex tube right part (6); the vortex device moving part comprises a yarn guide tube left part (14), a stationary spindle left part (3) and a vortex tube left part (2); the yarn guide tube left part (14) and the stationary spindle left part (3) are embedded in the vortex tube left part (2); the vortex tube left part (2) is engaged with the vortex tube right part (6) to form a vortex tube which is cylindrical, and the yarn guide tube left part (14) is engaged with the yarn guide tube right part (12) to form a yarn guide tube which is cylindrical; a yarn inlet is provided along a central axis of the yarn guide tube; a half of the yarn inlet is located on an engaging surface of the yarn guide tube left part (14), and the other half is located on an engaging surface of the yarn guide tube right part (12); the yarn guide tube is located in a head end of the vortex tube; the stationary spindle left part (3) is engaged with the stationary spindle right part (4) to form a stationary spindle with a conical front end; a yarn outlet is provided along a central axis of the stationary spindle; a cross section of the yarn outlet is circular, and a longitudinal section of the yarn outlet has an inverted funnel shape with an gradient-increasing diameter along the front end to a rear end of the stationary spindle; a half of the yarn outlet is located on an engaging surface of the stationary spindle left part (3), and the other half is located on an engaging surface of the stationary spindle right part (4); the stationary spindle is located in a tail end of the vortex tube, and a vortex chamber is formed between the stationary spindle and the vortex tube; central axes of the vortex chamber, the yarn outlet and the yarn inlet coincide with each other; a dovetail groove is provided on the fixer (7) along a length direction thereof, and the vortex tube right part (6) is fixedly inserted into the dovetail groove of the fixer (7); the connector (1) is provided with a dovetail groove along the length direction, and the vortex tube left part (2) is fixedly inserted into the dovetail groove of the connector (1); an air inlet and an air outlet are provided on a wall of the vortex tube right part (6); an outlet opening of the air inlet corresponds to an inlet opening of the yarn outlet at the front end of the stationary spindle, and an inlet opening of the air inlet is fixedly connected to an end of the air inlet tube (5); an inlet opening of the air outlet corresponds to the rear end of the stationary spindle, and an outlet opening of the air outlet is connected to the air outlet tube (8); the first sliding rod (9), the second sliding rod (10) and the third sliding rod (11) are arranged on an engaging surface of the vortex tube right part (6); the first sliding rod (9), the second sliding rod (10) and the third sliding rod (11) are respectively perpendicular to the engaging surface of the vortex tube right part (6), and respectively located on one side of a central axis of the vortex tube right part (6): the first sliding rod (9) and the third sliding rod (11) are located at an upper portion of the vortex tube right part (6), and the second sliding rod (10) is located at a lower portion of the vortex tube right part (6); an air inlet, a first connection hole (16), a second connection hole (17) and a third connection hole (15) are provided on a wall of the vortex tube left part (2); the air inlet on the wall of the vortex tube left part (2) corresponds to the air inlet on the wall of the vortex tube right part (6), the first sliding rod (9) is movably inserted in the first connection hole (16), the second sliding rod (10) is movably inserted in the second connection hole (17), and the third slide rod (11) is movably inserted in the third connection hole (15).

2. A method of applying a half-slide matched device for ultra-smoothly reconstructing yarn hairy structure on a textile machine, comprising steps of: at least fixedly engaging a vortex device static part of a first half-slide matched device with a vortex tube right part (6) of a second half-slide matched device by a fixer (7), and fixedly engaging a vortex device moving part of the first half-slide matched device with a vortex tube left part (2) of the second half-slide matched device by a connector (1); fixedly connecting the connector (1) to an end of a push-pull rod (20), and externally connecting the other end of the push-pull rod (20) to a pneumatic device.

3. The method, as recited in claim 2, wherein the textile machine is a ring spinning frame, a rotor spinning machine, a winder, a warping machine, a weft knitting machine, a warp knitting machine or an air jet loom.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a structural view of a half-slide matched device of the present invention.

(2) FIG. 2 is a structural view of a vortex device static part of the half-slide matched device of the present invention.

(3) FIG. 3 is a structural view of a vortex device moving part of the half-slide matched device of the present invention.

(4) FIG. 4 is an assembly view of the half-slide matched device of the present invention.

(5) FIG. 5 is illustrates opening of the vortex device static part and vortex device moving part when yarn breaks.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

(6) Referring to the drawings, a half-slide matched device and its application for ultra-smoothly reconstructing yarn hairy structure of the present invention will be further illustrated.

(7) Please refer to the drawings.

(8) A half-slide matched device for ultra-smoothly reconstructing yarn hairy structure is provided, which comprises: a first sliding rod 9, a second sliding rod 10, a third sliding rod 11, a fixer 7, a connector 1, an air inlet tube 5, an air outlet tube 8, a vortex device static part and a vortex device moving part, wherein the vortex device static part and the vortex device moving part are matched; the vortex device static part comprises is a yarn guide tube right part 12, a stationary spindle right part 4 and a vortex tube right part 6; the yarn guide tube right part 12 and the stationary spindle right part 4 are embedded in the vortex tube right part 6; the vortex device moving part comprises a yarn guide tube left part 14, a stationary spindle left part 3 and a vortex tube left part 2; the yarn guide tube left part 14 and the stationary spindle left part 3 are embedded in the vortex tube left part 2; the vortex tube left part 2 is engaged with the vortex tube right part 6 to form a vortex tube which is cylindrical, and the yarn guide tube left part 14 is engaged with the yarn guide tube right part 12 to form a yarn guide tube which is cylindrical; a yarn inlet is provided along a central axis of the yarn guide tube; a half of the yarn inlet is located on an engaging surface of the yarn guide tube left part 14, and the other half is located on an engaging surface of the yarn guide tube right part 12; the yarn guide tube is located in a head end of the vortex tube; the stationary spindle left part 3 is engaged with the stationary spindle right part 4 to form a stationary spindle with a conical front end; a yarn outlet is provided along a central axis of the stationary spindle; a cross section of the yarn outlet is circular, and a longitudinal section of the yarn outlet has an inverted funnel shape with an gradient-increasing diameter along the front end to a rear end of the stationary spindle; a half of the yarn outlet is located on an engaging surface of the stationary spindle left part 3, and the other half is located on an engaging surface of the stationary spindle right part 4; the stationary spindle is located in a tail end of the vortex tube, and a vortex chamber is formed between the stationary spindle and the vortex tube; central axes of the vortex chamber, the yarn outlet and the yarn inlet coincide with each other; a dovetail groove is provided on the fixer 7 along a length direction thereof, and the vortex tube right part 6 is fixedly inserted into the dovetail groove of the fixer 7; the connector 1 is provided with a dovetail groove along the length direction, and the vortex tube left part 2 is fixedly inserted into the dovetail groove of the connector 1; an air inlet and an air outlet are provided on a wall of the vortex tube right part 6; an outlet opening of the air inlet corresponds to an inlet opening of the yarn outlet at the front end of the stationary spindle, and an inlet opening of the air inlet is fixedly connected to an end of the air inlet tube 5; an inlet opening of the air outlet corresponds to the rear end of the stationary spindle, and an outlet opening of the air outlet is connected to the air outlet tube 8, the first sliding rod 9, the second sliding rod 10 and the third sliding rod 11 are arranged on an engaging surface of the vortex tube right part 6; the first sliding rod 9, the second sliding rod 10 and the third sliding rod 11 are respectively perpendicular to the engaging surface of the vortex tube right part 6, and respectively located on one side of a central axis of the vortex tube right part 6; the first sliding rod 9 and the third sliding rod 11 are located at an upper portion of the vortex tube right part 6, and the second sliding rod 10 is located at a lower portion of the vortex tube right part 6; an air inlet, a first connection hole 16, a second connection hole 17 and a third connection hole 15 are provided on a wall of the vortex tube left part 2; the air inlet on the wall of the vortex tube left part 2 corresponds to the air inlet on the wall of the vortex tube right part 6, the first sliding rod 9 is movably inserted in the first connection hole 16, the second sliding rod 10 is movably inserted in the second connection hole 17, and the third slide rod 11 is movably inserted in the third connection hole 15.

(9) A method of applying the half-slide matched device for ultra-smoothly reconstructing yarn hairy structure on a textile machine is provided, wherein the textile machine is a ring spinning frame, a rotor spinning machine, a winder, a warping machine, a weft knitting machine, a warp knitting machine or an air jet loom. The method comprises steps of: at least fixedly engaging a vortex device static part of a first half-slide matched device with a vortex tube right part 6 of a second half-slide matched device by a fixer 7, and fixedly engaging a vortex device moving part of the first half-slide matched device with a vortex tube left part 2 of the second half-slide matched device by a connector 1; fixedly connecting the connector 1 to an end of a push-pull rod 20, and externally connecting the other end of the push-pull rod 20 to a pneumatic device; wherein when the yarn breaks, the pneumatic device drives the push-pull rod 20 to move the vortex device moving part away from the vortex device static part, in such a manner that the vortex device static part and the vortex device moving part of the half-slide matched device are opened, which is convenient for broken yarn slicing and internal cleaning of the half-slide matched device, so as to effectively solve the problem that the conventional vortex wrapping device has difficulty in yarn slicing and industrial promotion; fibers accumulated in conventional vortex wrapping device block the yarn passage, causing frequent breakage, low efficiency, etc.; when the yarn moves, the vortex device static part and the vortex device moving part of the half-slide matched device are closed by the push-pull rod 20 for efficiently constraining and utilizing the vortex airflow, thereby avoiding the technical problem of partial open type device with low vortex utilization rate; each air outlet tube 8 is connected to a directional air tube 18, and an end surface of an air outlet 19 of the directional air tube 18 is parallel to a central axis of a yarn inlet of a yarn guide tube; so as to one-directionally stretch hairiness on yarn surface to avoid random dispersion and entanglement, and to remove impurities and floating hairiness of the yarn surface; as a result, unfavorable factors such as impurity and attached fibers accumulate within the conventional hairiness wrapping device and block the yarn passage, causing breakage, low efficiency, etc. are eliminated, improving application production efficiency and stability; each air inlet tube 5 is connected to an air compressor in parallel, in such a manner that high-pressure jet with a pressure of 4-8 MPa is injected into each vortex chamber, and the high-pressure jet is ordinary air or high-temperature hot wet steam with a temperature of 100-180 C.; higher fiber initial modulus of the yarn to be treated and higher vitrification or softening point temperature require higher the temperature of the hot wet steam for softened wrapping of the hairiness on the surface of the yarn and improving the wrapping effect; the high-pressure jet generates vortex in each vortex chamber, and the yarn is sequentially subjected to vortex in each closed vortex chamber, in such a manner that the hairiness on the surface of the hairy yarn is tightly wrapped by repeated superimposition and repeated reinforcement, which realizes the ultra-smooth processing of the yarn and breaks through the technical bottleneck that the conventional device has only a single vortex for hairiness wrapping, wherein the high-efficiency high-speed tight wrapping of yarn hairiness is not achieved; the device can be just applied in equipment for low-speed ring spinning, low-speed rewinding; After ultra-smoothly reconstructing various yarn hairy surface structures, the corresponding fiber utilization rate of the tight hairiness-wrapped ultra-smooth yarn body is improved, and the yarn strength is enhanced, which solves the problem that the vortex spinning cannot achieve the production of high count yarns with high strength and surface smoothness; and the used fibers and produced yarn varieties are very limited for vortex spinning due to its failure of producing yarn of hard spun fibers such as high-rigidity bast fibers and high elastic curled wool fibers. The half-slide matched device of the present invention has reasonable structure and simple installation on textile processing machines; the present invention, highlighted with wide adaptability and convenient operation, adopts several half-slide matched devices in tandem to improve tightness, efficiency and speed of various hairy yarn surface ultra-smooth reconstruction, so as to be suitable for wide application as it can treat various hairy yarn on different textile machines under various moisture regaining conditions According to actual needs, the half-slide matched device can be converted to an integrated device.

(10) The specific application of the present invention will be further illustrated below according to ultra-smoothly reconstructing of different hairy yarns on different textile machines.

Embodiment 1: Ultra-Smoothly Reconstructing Nm40 Pure Wool Yarn on a Ring Spinning Frame

(11) A mounting frame is arranged on the plane of the corresponding platform of each spindle of the wool spinning frame, and a guide crossbar is arranged in front of the mounting frame. The guide crossbar and the front roller grip line of the wool spinning frame are parallel to each other, and two half-slide matched devices are adopted in tandem. The series-connected half-slide matched devices are fixedly mounted behind the mounting frame, and the yarn inlet and the yarn outlet of the series-connected half-slide matched devices are perpendicular to the fixed yarn guide crossbar. The central axes of the yarn inlet and the yarn outlet are in the same plane with the front roller nip line of the spinning frame, and the plane is tangent to a top part of the guide crossbar. Each air inlet tube 5 of the series-connected half-slide matched devices is connected to the air compressor in parallel, so that the injection pressure jet in each vortex chamber is 5 MPa hot wet steam with a temperature of 100 C. Wool roving with a fixed weight of 6.25 g/10 m is drawn by 25 times into wool fiber strands by a drawing system of the wool spinning frame. The wool fiber strand is outputted from the front roller nip, and then immediately twisted into wool yarn under a torsion force by the ring twisting. The wool yarn moves above an air outlet end face of the directional jet tube 18, in such a manner that the hairiness of the yarn is one-directionally stretched, and the floating hairiness and impurities are removed. Then the yarn strand passes through the yarn inlet of the yarn guide tube formed by engaging the first half-slide matched device, and enter the vortex chamber of the first half-slide matched device. Subsequently, the yarn is outputted from the stationary spindle formed by engaging the first half-slide matched device, and passes through the yarn inlet of the yarn guide tube formed by engaged the second half-slide matched device, so as to enter the vortex chamber of the second half-slide matched device. Finally, the yarn is outputted from the stationary spindle formed by engaging the second half-slide matched device. The hairiness on the yarn surface is wrapped in the first vortex chamber, and partly unwrapped hairiness is then completely wrapped in the second vortex chamber. This combination of tandem-connected multiple devices is used to superimpose and repeatedly strengthen the ultra-smooth wrapping of the hairiness on the surface of the hairy yarn, so as to produce ultra-smooth reinforced wool yarn with the ring spinning frame. The wool yarn drawn from the yarn outlet passes through a top surface of the yarn guide crossbar, the yarn guide hook and the steel ring traveler, so as to be finally wound onto the bobbin. The results of the experimental spinnings with the same spindle, roving and spinning settings show that: the yarn smoothness is expressed in the textile field by the amount of hairiness on the surface of the yarn; less hairiness means higher smoothness; compared with the conventional ring spinning, 3 mm hairiness of the pneumatic compact spun wool yarn is decreased by 42.1%, 3 mm hairiness of the sirospun wool yarn is decreased by 52.7%, 3 mm hairiness of the soft and smooth spun wool yarn is decreased by 50.2%, 3 mm hairiness of the multiple mechanical condensed spun wool yarn is decreased by 39.0/o, and the hairiness of the yarn produced by the present invention is decreased by 91.7%; that is to say, the yarn hairiness is decreased drastically, the fiber utilization rate is effectively improved, and the increase of yarn strength is slightly higher than that of siro and pneumatic compact spinnings.

Embodiment 2: Ultra-Smoothly Reconstructing Nm32 Pure Ramie Yarn on a Winder

(12) A mounting frame is arranged between corresponding electronic yarn clearer and pre-clearer of each yarn passage of a Murata No. 21C automatic winder, and four half-slide matched devices are adopted in tandem. The tandem-connected half-slide matched devices are fixedly mounted on the mounting frame, and central axes of the yarn inlet and the yarn outlet of the series-connected half-slide matched devices coincide with central axes of yarn passages of the electronic yarn clearer and the pre-clearer. Each air inlet tube 5 of the tandem-connected half-slide matched devices is connected to the air compressor in parallel, so that the injection pressure jet in each vortex chamber is 7 MPa hot wet steam with a temperature of 180 C. The hairy pure ramie yarn is unwound from the bobbin at a speed of 1100 m/min, and passes through a yarn detector and the pre-clearing device to reach the tandem-connected half-slide matched devices in sequence. The ramie yarn moves above an air outlet end face of the directional jet tube 18, in such a manner that the hairiness of the yarn is one-directionally stretched, and the floating hairiness and impurities are removed. Then the yarn passes through the yarn inlet of the yarn guide tube formed by engaging the first half-slide matched device, and enters the vortex chamber of the first half-slide matched device. Subsequently, the yarn is outputted from the stationary spindle formed by engaging the first half-slide matched device, and passes through the yarn inlets, the vortex chambers, and the yarn outlets of the second half-slide matched device, the third half-slide matched device and the fourth half-slide matched device in sequence. The hairiness on the yarn surface is wrapped in the first vortex chamber by hot wet steam vortex, and partly unwrapped hairiness is then completely wrapped in the vortex chambers of the second half-slide matched device, the third half-slide matched device and the fourth half-slide matched device in a multiple progressive reinforcement form. This combination of tandem-connected multiple devices is used to superimpose and repeatedly strengthen the ultra-smooth wrapping of the hairiness on the surface of the hairy yarn, so as to provides ultra-smoothly reconstructing hairy yarn such as high-rigidity bast on the high-speed winder, which not only solves the technical problem of the vortex spinning machine is not suitable to produce yarn of hard spun fibers such as high-rigidity bast fibers, but also completely eliminates the technical defect that high-speed winding causes the yarn hairiness to increase sharply. The yarn drawn from the yarn outlet of the fourth half-slide matched device sequentially passes through the electronic yarn clearer, the yarn guide plate and the winding drum, and is finally winded up to the cone package. The yarn smoothness is expressed in the textile field by the amount of hairiness on the surface of the yarn; less hairiness means higher smoothness. Experimental results show that: compared with the yarn after winding without the half-slide matched device of the present invention, the present invention ultra-smoothly reconstructed ramie yarn 3 mm hairiness is decreased by 82.9%, and the yarn strength is increased by 5.3%.

Embodiment 3: Ultra-Smoothly Reconstructing Ne30 Pure Cotton Yarn on a Rotor Spinning Machine

(13) A mounting frame is arranged between corresponding yarn guide tube outlet and yarn defect monitor of each rotor spinning device on a rotor spinning machine, and three half-slide matched devices are adopted in tandem. The tandem-connected half-slide matched devices are fixedly mounted on the mounting frame, and central axes of the yarn inlet and the yarn outlet of the tandem-connected half-slide matched devices coincide with a connecting line of yarn groove inlets of the corresponding yarn guide tube outlet and yarn defect monitor of each rotor spinning device. Each air inlet tube 5 of the tandem-connected half-slide matched devices is connected to the air compressor in parallel, so that the injection pressure jet in each vortex chamber is 6 MPa common compressed air flow, a cotton fiber sliver is fed into a rotor spinning device by the cotton feeding roller and the cotton feeding board; in the rotor spinning machine, a cotton fiber sliver is firstly carded into cotton strand by the carding roller; the cotton strand is delivered into a rotating rotor through a fiber conveyer tube; the cotton strand is twisted by the rotating rotor into a Ne 30 pure cotton yarn which is outputting from the rotor spinning device by a baffle plate. The pure cotton yarn has an inner tight and outside loose structure, meaning the yarn surface is insufficiently twisted to have lots of hairiness. Then the yarn with lots of hairiness is output from the corresponding yarn guide tube outlet of the rotor spinning machine at a speed of 200 m/min to reach the tandem-connected half-slide matched devices. The rotor spinning pure cotton yarn moves above an air outlet end face of the directional jet tube 18, in such a manner that the loosely flattened hairiness of the yarn is one-directionally stretched, and the floating hairiness is removed, thereby avoiding yarn defects such as hairiness random dispersion, neps caused by entanglement during hairiness wrapping. Then pure cotton yarn passes through the yarn inlet of the yarn guide tube formed by engaging the first half-slide matched device, and enters the vortex chamber of the first half-slide matched device. Subsequently, the yarn is outputted from the stationary spindle formed by engaging the first half-slide matched device, and passes through the yarn inlets, the vortex chambers, and the yarn outlets of the second half-slide matched device and the third half-slide matched device in sequence. The hairiness on the pure cotton yarn surface is wrapped in the first vortex chamber by air vortex, and partly unwrapped hairiness is then completely wrapped in the vortex chambers of the second half-slide matched device and the third half-slide matched device in a multiple progressive reinforcement form. This combination of tandem-connected multiple devices is used to superimpose and repeatedly strengthen the ultra-smoothly reconstructing the hairy yarn surface, so as to convert rotor spinning yarn structure of tight inside and loose outside into ultra-smoothly reconstructed yarn structure with tight inside and tight outside for the high-speed rotor spinning machine, which eliminates technical defects of loose surface and a lot of hairiness of the rotor spinning yarn in subsequent utilization, and low fiber utilization as well as low strength. The yarn drawn from the yarn outlet of the third half-slide matched device sequentially passes through the yarn defect monitor, the yarn feeding roller grip, the yarn guide, the winding roller, and is finally winded up to the cone. The half-slide matched device of the present invention can also be integrated, wherein the yarn inlet port of the half-slide matched device is designed to have a baffle-like shape, and the integrated half-slide matched device directly replaces the baffle plate of the conventional rotor spinning device. The yarn smoothness is expressed in the textile field by the amount of hairiness on the surface of the yarn; less hairiness means higher smoothness. Experimental results show that: compared with the rotor spinning yarn without the half-slide matched device of the present invention, the present invention ultra-smoothly reconstructed cotton yarn 3 mm hairiness is decreased by 80.7%, and the yarn strength is increased by 6.4%.

Embodiment 4: Ultra-Smoothly Reconstructing Ne60 Cotton/Modal 50/50 Yarn on a Weft Knitting Machine

(14) A mounting frame is arranged between corresponding yarn feeder and yarn guider of each yarn weft knitting mechanism on a weft knitting machine, and two half-slide matched devices are adopted in tandem. The tandem-connected half-slide matched devices are fixedly mounted on the mounting frame by a fixer 7 in a screw and screw cap form, and are located between the yarn feeder and the yarn guider. The central axes of the yarn inlet and the yarn outlet of the tandem-connected half-slide matched devices coincide with yarn between the yarn feeder and the yarn guider. After the tandem-connected half-slide matched devices are fixedly mounted on the mounting frame, each air inlet tube 5 of the tandem-connected half-slide matched devices is connected to the air compressor in parallel, so that the injection pressure jet in each vortex chamber is 4 MPa hot wet steam with a temperature of 125 C. The hairy cotton/modal yarn is unwound from the package located on the yarn package creel at a speed of 12 m/min, and passes through a tension device and the yarn feeder to enter the series-connected half-slide matched devices. The cotton/modal yarn moves above an air outlet end face of the directional jet tube 18, in such a manner that the hairiness of the yarn is one-directionally stretched, and the floating hairiness is removed, thereby avoiding yarn defects such as hairiness random dispersion, neps caused by entanglement during hairiness wrapping, and effectively removing yarn surface impurities as well as attaching fiber. Then the yarn passes through the yarn inlet of the yarn guide tube formed by engaging the first half-slide matched device, and enter the vortex chamber of the first half-slide matched device. Subsequently, the yarn is outputted from the stationary spindle formed by engaging the first half-slide matched device, and passes through the yarn inlet, the vortex chamber, and the yarn outlet of the second half-slide matched device. The hairiness is wrapped in the first vortex chamber by hot wet steam vortex, and unwrapped hairiness is then completely wrapped in the vortex chamber of the second half-slide matched device in a progressive reinforcement form. This combination of series-connected multiple devices is used to superimpose and repeatedly strengthen the reconstructed ultra-smooth yarn structure, so as to provides ultra-smoothly reconstructing of hairy yarn such as high-rigidity regenerated cellulose on the weft knitting machine. The ultra-smoothly reconstructed yarn drawn from the yarn outlet of the second half-slide matched device is guided by the yarn guider into a knitting zone of a knitting device. Under the action of the looping mechanism in the knitting zone, the knitted fabric is knitted and is outputted from the knitting zone by a pulling and unwinding mechanism. Surface smoothness of the fabric is usually expressed by observing the surface hairiness and testing abrasion resistance. Less surface hairiness and higher wear resistance of the fabric indicate higher smoothness of the fabric. The comparative trial results show that compared with the conventional weft knitting cotton/modal yarn fabric, the ultra-smoothly reconstructed cotton/modal yarn produced by the present invention has a smooth appearance, an increased bursting strength of the fabric with increased ratio of 3.4%, and an improved wear resistance of the fabric with improvement by 3 levels.

Embodiment 5: Ultra-Smoothly Reconstructing Ne60 100% TENBRO Yarn on a Warp Knitting Machine

(15) Two half-slide matched devices are adopted in tandem on a warp knitting machine. The tandem-connected half-slide matched devices are fixedly mounted on a yarn guider creel of a warp feeding mechanism on the warp knitting machine by a fixer 7 in a screw and screw cap form, and are located between the positive warp feeding mechanism and a yarn hook of loop mechanism. The central axes of the yarn inlet and the yarn outlet of the tandem-connected half-slide matched devices coincide with a yarn path between the positive warp feeding mechanism and the yarn hook of loop mechanism. After the tandem-connected half-slide matched devices are fixedly mounted on the yarn guide frame, each air inlet tube 5 of the tandem-connected half-slide matched devices is connected to the air compressor in parallel, so that the injection pressure jet in each vortex chamber is 5.5 MPa hot wet steam with a temperature of 150 C. The hairy TENBRO yarn is unwound from a warp beam on a warp beam creel at a speed of 30 m/min, and passes through a tension device and the positive warp feeding mechanism to reach the tandem-connected half-slide matched devices. The TENBRO yarn moves above an air outlet end face of the directional jet tube 18, in such a manner that the hairiness of the yarn is one-directionally stretched, and the floating hairiness as well as impurities are removed. Then the yarn passes through the yarn inlet of the yarn guide tube formed by engaging the first half-slide matched device, and enter the vortex chamber of the first half-slide matched device. Subsequently, the yarn is outputted from the stationary spindle formed by engaging the first half-slide matched device, and passes through the yarn inlet, the vortex chamber, and the yarn outlet of the second half-slide matched device. The hairiness is wrapped in the first vortex chamber by hot wet steam vortex, and unwrapped hairiness is then completely wrapped in the vortex chamber of the second half-slide matched device in a progressive reinforcement form. This combination of tandem-connected multiple devices is used to superimpose and repeatedly strengthen the reconstructed ultra-smooth yarn surface structure, so as to provide ultra-smoothly reconstructing of hairy yarn such as high-rigidity regenerated cellulose on the warp knitting machine, and breaking the technical bottleneck that hairy spun yarn cannot be knitted with a high speed on the warp knitting machine. The ultra-smoothly reconstructed yarn drawn from the yarn outlet of the second half-slide matched device is guided into the looping mechanism on the warp knitting machine by the yarn feeding hook of the looping mechanism for being knitted. Surface smoothness of the fabric is usually expressed by observing the surface hairiness and testing abrasion resistance. Higher wear resistance the fabric means higher smoothness of the fabric. The comparative trial results show that: assisted with the present invention, the hairy TENBRO yarn can be successfully knitted; compared with the trial jog warp knitted fabric using ordinary hairy TENBRO yarn, the surface hairiness of the fabric knitted by the present invention reconstructed ultra-smooth yarn is reduced by 67.2%, a bursting strength of the present invention knitted fabric is increased by 2.1%, and the wear resistance of the present invention knitted fabric is increased by 2.5 levels.

Embodiment 6: Ultra-Smoothly Reconstructing Nm40 Pure Ramie on a Warping Machine

(16) On each yarn warping mechanism of the warping machine, four half-slide matched devices are adopted in tandem. The tandem-connected half-slide matched devices are fixedly mounted on a row of yarn guide rod at each yarn output end of a warping machine creel by a fixer 7 in a screw and screw cap form, and are located between the yarn guide rod and an expansible reed. Central axes of the yarn inlet and the yarn outlet of the tandem-connected half-slide matched devices coincide with the yarn between the yarn guide rod and the expansible reed. After the tandem-connected half-slide matched devices are fixedly mounted on yarn guide rod, each air inlet tube 5 of the tandem-connected half-slide matched devices is connected to the air compressor in parallel, so that the injection pressure jet in each vortex chamber is 7 MPa hot wet steam with a temperature of 180 C. The hairy pure ramie weft yarn is unwound from the yarn package on the creel at a speed of 800 m/min, and passes through a tension device and the yarn guide rod in a tension state to reach the tandem-connected half-slide matched devices. The ramie weft yarn moves above an air outlet end face of the directional jet tube 18, in such a manner that the yarn hairiness is one-directionally stretched, and the floating hairiness as well as impurities are removed. Then the yarn passes through the yarn inlet of the yarn guide tube formed by engaging the first half-slide matched device, and enters the vortex chamber of the first half-slide matched device. Subsequently, the yarn is outputted from the stationary spindle formed by engaging the first half-slide matched device, and passes through the yarn inlets, the vortex chambers, and the yarn outlets of the second half-slide matched device, the third half-slide matched device and the fourth half-slide matched device in sequence. The hairiness on the surface of the yarn strip is wrapped in the first vortex chamber by hot wet steam vortex, and unwrapped hairiness is then completely wrapped in the vortex chambers of the second half-slide matched device, the third half-slide matched device and the fourth half-slide matched device in a multiple progressive reinforcement form. This combination of tandem-connected multiple devices is used to superimpose and repeatedly strengthen reconstructed ultra-smooth yarn surface structure, so as to provide ultra-smoothly reconstructing of hairy yarn such as high-rigidity ramie on the high-speed warping machine, which not only solves the technical problem of vortex spinning fails to produce yarn of hard spun fibers such as high-rigidity bast fibers, but also completely eliminates the technical defect that high-speed warping causes the sharp increase of yarn hairiness. The yarn drawn from the yarn outlet of the fourth half-slide matched device sequentially passes through the expansible reed and a yarn guide roller, and is finally winded up to a warping beam. The yarn smoothness is expressed in the textile field by the amount of hairiness on the surface of the yarn; less hairiness means higher smoothness. The comparative trial results show that: the hairiness and strength of the present invention reconstructed Nm40 pure ramie yarn are greatly improved, wherein the 3 mm hairiness is reduced from 403.40 to 67.20, and the yarn strength is increased from 513.66 cN to 591.22 cN, wherein the yarn evenness index remains at the same level.

Embodiment 7: Ultra-Smoothly Reconstructing Nm38 Pure Wool Yarn on Air Jet Loom

(17) A mounting frame is arranged between corresponding creel and weft feeder of each weft insertion mechanism on an air jet loom, and two half-slide matched devices are adopted in tandem. The tandem-connected half-slide matched devices are fixedly mounted on the mounting frame by a fixer 7 in a screw and screw cap form, and are located between the creel and the weft feeder. The central axes of the yarn inlet and the yarn outlet of the tandem-connected half-slide matched devices coincide with yarn between the yarn feeding mechanism and the yarn guider. After the tandem-connected half-slide matched devices are fixedly mounted on the mounting frame, each air inlet tube 5 of the tandem-connected half-slide matched devices is connected to the air compressor in parallel, so that the injection pressure jet in each vortex chamber is 7 MPa hot wet steam with a temperature of 120 C. The hairy pure wool yarn is unwound from the yarn package on the creel at a speed of 800 m/min, and passes through a tension device to reach the tandem-connected half-slide matched devices. The pure wool yarn moves above an air outlet end face of the directional jet tube 18, in such a manner that the hairiness of the yarn is one-directionally stretched, and the floating hairiness as well as impurities are removed, thereby avoiding yarn defects such as hairiness random dispersion, neps caused by vortex wrapping of entangled hairiness, and improving application productivity and stability. Then the yarn passes through the yarn inlet of the yarn guide tube formed by engaging the first half-slide matched device, and enters the vortex chamber of the first half-slide matched device. Subsequently, the yarn is outputted from the stationary spindle formed by engaging the first half-slide matched device, and passes through the yarn inlet, the vortex chamber, and the yarn outlet of the second half-slide matched device. The hairiness of the pure wool yarn is wrapped in the first vortex chamber by hot wet steam vortex, and unwrapped hairiness is then completely wrapped in the vortex chamber of the second half-slide matched device in a progressive reinforcement form. This combination of tandem-connected multiple devices is used to superimpose and repeatedly strengthen reconstructed ultra-smooth yarn surface structure, so as to ensure the technical effect for ultra-smoothly reconstructing of hairy wool weft yarn and producing of smooth fabric on high-speed air jet loom. The yarn drawn from the yarn outlet of the second half-slide matched device is winded on the weft feeder, and the weft yarn unwound from the weft feeder is guided into the weaving mouth after passing through the main nozzle, the weft cutter, the weft detector and the auxiliary nozzle in sequence, so as to be woven into the fabric under the action of the steel reed beating, thus forming a woven fabric with a smooth surface. Surface smoothness of the fabric is usually expressed by observing the surface hairiness and testing abrasion resistance. Less surface hairiness and higher wear resistance indicate higher smoothness of the fabric. Compared with conventional wool woven fabric, the weft insertion rate for the weaving assisted by the present invention is increased by 25.2%, the surface hairiness of the woven fabric produced by the present invention is reduced by 62.1%, the smoothness is remarkably improved, the fabric wear resistance after rinsing and drying is improved by two levels, and fabric weft tensile strength is increased by 5.7%.