Spinning method and device for regulating fiber yarn structure by traverse motion on spinning frame and yarn

Abstract

The present invention relates to a spinning method and device and yarn for regulating the fiber yarn-forming structure by traversing motion on a ring spinning frame. The present invention changes the output roller and output roller on the four-roller mechanism of the ring spinning frame, which only rotate, into twisting rollers and twisting rollers that both rotate and reciprocate, thereby changing the method of traditional spinning frames using the output rollers and output rollers for unidirectional twist spinning. In essence, the reciprocating twisting traversing motion of the twisting rollers and twisting rollers regulates the twist distribution and fiber arrangement structure inside the yarn. The present invention innovates the unidirectional twist yarn-forming process and mechanism of ring spinning, improves the yarn strength, softness and smoothness, reduces the yarn hairiness, balances the residual torque of the yarn, and changes the twist distribution law of the yarn.

Description

Technical Field

[0001] The present invention relates to the field of textile technology, and in particular to a spinning method and device for regulating a fiber yarn-forming structure by traverse motion on a ring spinning frame, and yarn. Background Art

[0002] The short-staple spinning technology is a process of processing disordered and scattered fiber raw materials into linear aggregates with certain trend, cohesion and linear density through a series of mechanical actions, which provides a strong guarantee for the fiber raw materials to be made into sheet or three-dimensional fabrics.

[0003] Ring spinning, a type of grip-end spinning, is widely used due to its adaptability to raw materials and wide range of yarns. However, it also suffers from drawbacks such as excessive yarn hairiness, insufficient strength, poor feel, difficulty in quality control, and low efficiency. When the yarn is wound onto the bobbin, the wire ring rotates around the collar, twisting the yarn. This causes the fibers inside and outside the sliver to self-balance, with the outer fibers shifting inward and the inner fibers shifting outward, intertwining to form a continuous yarn and creating a unique yarn structure. Unidirectional twist is a unique structure of ring-spun yarns, where the twisting of the fiber bundles creates a continuous fiber structure with sufficient strength. However, the disadvantage of unidirectional twist is that the twisting generates residual torque within the internal fibers and exposes the hairiness of the surface fibers. Therefore, it is impossible to produce ring-spun single yarns with the unique fiber structure characteristics of low torque, low twist, high strength, low hairiness, and good yarn evenness.

[0004] To overcome the problems of excessive hairiness and insufficient yarn strength, compact spinning technology has developed rapidly in recent years. Compact spinning involves focusing the fiber slivers in the ring spinning triangle to reduce or eliminate the twisting triangle. This effectively controls the twisting of fibers at the edge of the slivers into yarn, significantly reducing hairiness and creating a new spinning method with a tightly packed, cohesive yarn structure. Currently, two main methods for focusing the slivers in the ring spinning triangle are negative pressure airflow or mechanical grooves. Negative pressure airflow focusing technology is well developed, with common compact spinning devices on the market including the Zinser CompACT3, Rieter K44 (Com4), and Suessen Elite. Mechanical grooved compact spinning devices suffer from poor spinning stability and have not yet been widely adopted. Compared to conventional ring-spun yarn, compact yarns offer significant improvements in yarn strength, abrasion resistance, and hairiness reduction. However, these methods also present new challenges, such as yarn density, a stiff feel in the resulting fabric, and high energy consumption. To address the stiff feel of conventional compact spinning, some researchers have developed novel methods for removing hairiness and modifying the yarn's surface structure without degrading the yarn's feel. For example, Chinese Patent No. CN201410671777.0, published on February 4, 2015, is titled "Device for Defeathering Slivers During Ring Spinning." This patented invention provides a simple, energy-saving, and energy-efficient whole-bundle defeathering device. This device utilizes a rotating sheave to reshape the triangular area, dynamically capturing and gathering the surface fibers of the yarn, which have been twisted and formed through a fully inward-outward transfer motion. This significantly improves yarn quality, but in actual production, fibers can wrap around the sheave, leading to yarn breakage. Chinese Patent No. CN1995510A, published on July 11, 2007, is titled "An Ironing Spinning Method for Improving Yarn Performance." This method applies heat and moisture to the fibers during the spinning process, reducing their stiffness and achieving full inward-outward transfer, thereby reducing yarn hairiness. However, these devices are inconvenient to manufacture and install, require additional energy, pose certain safety risks, and are ineffective for non-heat-sensitive fibers. Furthermore, these patents only focus on single-fiber cohesion, resulting in tighter yarn wrapping. While this approach doesn't degrade the yarn's feel, it fails to balance the residual torque within the fibers, adjust stress distribution, or soften the yarn.

[0005] In addition to regulating yarn fiber aggregation and producing spinning methods with tightly bound fiber structures, regulating the yarn fiber arrangement structure to achieve a balanced internal torque in the yarn and produce low-torque structural yarns is also an important way to improve the performance of ring-spun yarns and produce new structural yarns. To overcome the problems of large internal residual torque and poor yarn feel, Professor Tao Xiaoming of the Hong Kong Polytechnic University has developed a low-torque yarn with excellent physical properties. The principle is to install a high-speed false twister on the yarn guide hook of the ring spinning machine to increase the twist of the spinning section, achieve the adjustment of the non-coaxial special-shaped helical structure of the fiber, and control the local reversal of the fiber segment. This can reduce the twist and torque of the ring spinning, and spin soft, low-twist, low-shrinkage high-end fine yarn, which is used to develop high-end textiles. Its potential value also lies in reducing end breakage, increasing machine speed, reducing energy consumption, improving strength, and reducing fabric weft skew. For example, Chinese patent number CN02118588.3, ​​published on October 15, 2008, is titled "Method and Equipment for Processing Single-Ply Torque-Free Ring Yarn." This application addresses the problem of large residual torque in ring-spun yarns and provides a new method for processing single-ply torque-free yarns. False twist is generated by a false twister, so that the twist direction of the yarn sub-fiber bundle is opposite to that of the synthesized single-ply yarn, thereby balancing the residual torque inside the yarn. At the same time, low-twist yarns that cannot be processed normally by traditional ring spinning machines can be processed. Chinese patent number CN Patent No. 101643948A, published on February 10, 2010, is entitled "Method and Apparatus for Producing Bend False Twist in Ring Yarn," which utilizes two belts as false twist devices to achieve two twisting points during the spinning process. Patent No. CN200510004306.5, published on April 6, 2011, is entitled "Method and Apparatus for Producing Low-Twist Single-Ply Ring Yarn," which utilizes a spindle to drive a friction disk for false twisting, achieving controllable residual torque in the single-ply yarn. However, the method of producing low-torque yarn using a false twister to generate false twist significantly affects yarn evenness because the force exerted by the false twister on the yarn is perpendicular to the direction of yarn movement. Furthermore, the yarn structure produced by this method still suffers from technical problems such as low fiber internal and external transfer, poor fiber cohesion, low yarn strength, and high yarn hairiness, which remain unresolved. Furthermore, the spinning process is complex, the machine cost is high, and the operation is inconvenient.

[0006] Typically, ring-spun yarns with a layered structure, which concentrates surface fibers to form an apparent compact structure, reduces hairiness, adjusts internal fiber alignment, and releases residual torque within the yarn body, cannot be achieved with unidirectional ring twisting. Spinning methods that achieve distinct inner and outer yarn structures require multiple separate processes. To address this issue, researchers have developed various methods for achieving layered fiber control. For example, Chinese Patent No. CN 201410105223.4, published on March 20, 2014, is titled "A Method and Apparatus for Processing Low-Hairiness, Low-Torque Ring Yarns." The invention utilizes a rotating airflow ejected from a nozzle to impart reverse twist to the yarn, causing the surface yarn to partially flip and wrap, thereby producing low-hair, low-torque yarns. However, the high energy consumption of the airflow, high operational precision, and complex mechanism make large-scale production difficult. In addition, Liu Keshuai et al. disclosed a tandem semi-open multiple-aggregation spinning method in the Journal of Textile Research (Textile Research Journal) Vol. 39, No. 2, 2018. The method uses pre-aggregation to reduce the width of the twisting triangle area, the groove wheel gathers and reshapes the triangle area, and the twisting disk gathers and twists the surface fibers of the fiber strips to achieve tight winding of the surface fibers, thereby achieving a yarn with a tight outer layer and soft inner structure. This method can produce high-quality yarn with sufficient internal fiber transfer and compact outer fiber aggregation, but this spinning method requires three sets of spinning devices to be used in series, which is complicated to operate. At the same time, the spinning process is prone to breakage, affecting production efficiency. Summary of the Invention

[0007] In response to the above-mentioned problems, the purpose of the present invention is to provide a spinning method, device and yarn for horizontally regulating the fiber yarn-forming structure on a ring spinning frame, which not only simplifies the compact spinning and low-torque spinning processes and mechanisms and shortens the process flow, but also reduces the yarn hairiness and improves the yarn strength, softness and smoothness.

[0008] In order to achieve the above objectives, the technical solutions of the present invention are:

[0009] A spinning method for traversing and regulating the fiber yarn-forming structure on a ring spinning frame, the spinning method is as follows: the stretched fiber sliver is output from the front jaw formed by the front roller and the front roller, and enters the twisting jaw formed by the twisting roller and the twisting roller; one end of the fiber sliver output from the front jaw is gripped by the front jaw, and the other end is gripped by the twisting roller and the twisting roller and performs a reciprocating twisting and torsional motion under the action of traversing friction; wherein when the yarn passes through the twisting roller and the twisting roller, the traversing friction generates the same-direction twist, and the pre-twist regulates the tight entanglement of the fibers. The outer fibers of the yarn body are dynamically captured and twisted together to form a yarn with an inner and outer fiber transfer-type entanglement and an outer fiber spirally wrapped structure; when the yarn passes through the twisting roller and the twisting roller, the reverse twist is generated by the lateral friction, and the pre-twist regulates the fiber torsional stress distribution. The yarn body is twisted and wrapped in the opposite direction along the surface fiber part, and the cross-winding solidifies the surface wrapping tightness of the yarn body. The reverse torsion deformation balances the torque of the internal fibers. The yarn is output after alternating cycles of unidirectional and reverse lateral twisting, and is finally wound on the bobbin through the yarn guide hook and wire ring.

[0010] At the same time, the present invention also provides a spinning device for realizing the spinning method of the lateral control fiber yarn-forming structure on the above-mentioned ring spinning frame, the spinning device includes a front roller and a front leather roller that cooperate with each other, the spinning device also includes a twisting leather roller and a twisting roller, the twisting roller is arranged at the front end of the front roller, one end of the front roller is connected to a motor device with a function of driving it to rotate through a bearing set installed on the wall panel of the frame, one end of the front roller and the twisting roller are respectively provided with a roller gear, the bridge gear connects the front roller and the twisting roller, and the bridge gear teeth The shape is consistent with the gear tooth shape of the front roller and the twisting roller. One end of the twisting roller is connected to a traversing device with a reciprocating traversing function via a first sliding sleeve installed on the frame wall panel. The twisting roller is placed on the upper end of the twisting roller, and the twisting roller is fixed on the reciprocating shaft. The reciprocating shaft part between the two pairs of twisting rollers is fixed to the twisting gripping claw 3 installed on the cradle body. The twisting gripping claw and the second sliding sleeve maintain the same horizontal position. One end of the reciprocating shaft is connected to a traversing device with a reciprocating traversing function via a second sliding sleeve installed on the frame wall panel.

[0011] Furthermore, the traverse device is a mechanism that performs a reciprocating traverse function among a motor mechanism, a reciprocating screw mechanism, a gear mechanism, and a cam mechanism.

[0012] Furthermore, there may be three types of reciprocating motion relationships between the twisting roller and the twisting roller: the twisting roller and the twisting roller rotate and reciprocate at the same time, and the lateral directions of the two remain opposite, and the lateral directions change at the same time; only the twisting roller rotates and reciprocates, and the twisting roller only rotates; only the twisting roller rotates and reciprocates, and the twisting roller only rotates.

[0013] At the same time, the present invention also provides a yarn prepared according to the spinning method of the above-mentioned ring spinning frame for horizontally controlling the fiber yarn-forming structure, wherein the yarn is composed of outer fibers and inner fibers, wherein the outer fibers are twisted and wrapped around the outer peripheral surface of the inner fibers in forward and reverse directions, and the torsional curl and fiber arrangement inclination angle of the inner fibers are smaller than those of the outer fibers.

[0014] Due to the adoption of the above technical scheme, compared with the existing technology, the spinning method of the present invention for horizontally regulating the fiber yarn-forming structure on a ring spinning frame has the following advantages: the present invention adopts the output roller and output roller of the original four-roller ring spinning that only perform rotational motion to change them into twisting rollers and twisting rollers that perform both rotational motion and reciprocating motion, which changes the traditional ring spinning method of only twisting and entangling yarn in one direction. The reciprocating motion of the twisting roller and the twisting roller forms a tangential twisting-assisted torsional winding with the yarn fibers, and the forward and reverse twisting is repeatedly switched to regulate and adjust the arrangement state of the fibers in the yarn body, changing the traditional ring spinning to a unidirectional wrapped fiber arrangement structure. At the same time, during the spinning process, the yarn is twisted horizontally in the same direction as the true twist, which strengthens the twisting and bonding of the main body of the fiber sliver in the spinning area, forcing the fibers to repeatedly transfer inward and outward in the radial direction of the yarn, and coordinates the dynamic capture-type twisting and aggregation of the outer fibers of the fiber sliver. In essence, it integrates the twisting and bonding internal and external transfer of the main body of the fiber sliver and the tight twisting and wrapping of the outer fibers, realizing the yarn formation of full transfer of the internal fibers and tight aggregation of the outer fibers, increasing the strength, wear resistance and smoothness of the yarn, and solving the problems of difficult-to-spin fibers such as high curl and poor cohesion in traditional ring spinning. The technical difficulties of making yarn on the machine and spinning high-count yarn are; after the formed yarn is twisted horizontally in the opposite direction of the true twist, some surface fibers of the yarn are twisted and wrapped in the opposite direction, and the reverse twisted and forward twisted surface fibers of the yarn body come into contact with each other, forming a positive and negative mesh cross-wrapped solidifying the winding tightness of the yarn surface. At the same time, the fibers inside the yarn body are twisted and deformed in the opposite direction, which balances the residual torque inside the yarn and enhances the curling and cohesion of the fibers inside the yarn body, eventually forming a soft, high-strength and smooth yarn, solving the technical problems of traditional compactly spun yarns that feel hard and have high rigidity. The present invention overcomes both the "first bundle splitting, then using a false twister to apply false twist perpendicular to the direction of yarn movement to achieve torque-balanced yarn formation" and the "semi-open serial re-spinning method of reshaping the triangular area of ​​the yarn forming section and passively rotating sheaves for aggregation." Essentially, it synchronizes rotation with the yarn transfer and delivery speed, resulting in torsional twisting of the fiber strands, forward and reverse twisting and wrapping of the outer fibers, and torque release of the inner fibers. This not only streamlines the compact spinning and low-torque spinning processes and mechanisms, shortening the process flow, but also reduces yarn hairiness and improves yarn strength, softness, and smoothness. It inherits the wide range of raw materials and variety adaptability of traditional ring spinning, breaking through the limits of yarn count. The present invention is easy to operate, requires no additional energy consumption, has a simple and clear mechanism, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the spinning mechanism that regulates the fiber yarn structure by traverse motion.

[0016] Figure 2 It is a schematic diagram of the structure of the yarn spun by traverse-controlled fiber.

[0017] In the figure: 1-front leather roller, 2-front roller, 3-twisting leather roller 3, 4-twisting roller, 5-twisting gripping claw, 6-cradle body, 7-reciprocating shaft, 8-roller gear, 9-bearing set, 10-first sliding sleeve, 11-second sliding sleeve, 12-motor device, 13-traverse device, 14-frame wall panel, 15-yarn, 16-front jaw, 17-twisting jaw, 18-outer fiber, 19-inner fiber. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to the accompanying drawings.

[0019] First, the present invention provides a spinning method for traversing and regulating the fiber yarn-forming structure on a ring spinning frame, the spinning method is as follows: the stretched fiber sliver is output from the front jaw formed by the front roller and the front leather roller, and enters the twisting jaw formed by the twisting roller and the twisting leather roller, one end of the fiber sliver output from the front jaw is gripped by the front jaw, and the other end is gripped by the twisting roller and the twisting leather roller and performs a reciprocating twisting and torsional motion under the action of traversing friction; wherein when the yarn passes through the twisting roller and the twisting roller, the traversing friction generates the same-direction twist, and the pre-twist regulates the fiber tightness. Dense entanglement, dynamic capture and twisting of the outer layer of yarn fibers, forming a yarn with an inner and outer fiber transfer-type entanglement and an outer fiber spirally wrapped structure; when the yarn passes through the twisting rollers and the twisting rollers to produce reverse twisting caused by the lateral friction, the pre-twist regulates the torsional stress distribution of the fiber, the yarn body is twisted and wrapped in the opposite direction along the surface fiber part, the cross-winding solidifies the surface wrapping tightness of the yarn body, and the reverse torsion deformation balances the torque of the internal fibers. The yarn is output after alternating cycles of unidirectional and reverse lateral twisting, and is finally wound on the bobbin through the yarn guide hook and wire ring.

[0020] At the same time, refer to the attached Figures 1 to 2As shown, the present invention also provides a spinning device for realizing the spinning method of the transversely regulating fiber yarn-forming structure on the above-mentioned ring spinning machine, the spinning device adopts the output roller and output roller of the original four-roller ring spinning that only perform rotational motion to be changed into a twisting roller 3 and twisting roller 4 that perform both rotational motion and reciprocating motion, the twisting roller 4 is arranged at the front end of the front roller 2 along the axial direction of the inclination angle formed by the front, middle and rear rollers, the center of the twisting roller 4 is in a straight line with the center of the front, middle and rear rollers, one end of the front roller 2 is connected to the motor device 12 with the function of driving it to rotate through the bearing set 9 installed on the frame wall panel 14, the front roller 2 and the twisting roller 4 are provided with the same roller gear 8 at one end of the surface, and the bridge gear 5 connects the front roller 2 and The twisting roller 4, at the same time, the tooth shape of the bridge gear 5 matches the tooth shape of the gears of the front roller 2 and the twisting roller 4, one end of the twisting roller 4 is connected to the traversing device 13 having the function of driving it to and fro through the first sliding sleeve 10 installed on the frame wall panel 14, the output roller 1 is placed on the upper end of the twisting roller 4, the front end of the front roller 1, the twisting roller sleeve installed inside the twisting roller 3 is fixed on the reciprocating shaft 7, the reciprocating shaft 7 in the middle of the two pairs of twisting rollers 1 is fixed to the twisting gripping claw 5 installed on the cradle body 6, the twisting gripping claw 5 and the second sliding sleeve 11 maintain the same horizontal position, and one end of the reciprocating shaft 7 is connected to the traversing device 13 having the function of driving it to and fro through the second sliding sleeve 11 installed on the frame wall panel 14;

[0021] During spinning, the twisting roller 3 fits tightly against the twisting roller 4, and the front roller 2 is driven to rotate by the motor device 12. The twisting rollers are driven to rotate synchronously through the bridge gear 5. At the same time, the twisting roller 4 drives the tightly fitted twisting roller 3 to rotate synchronously. The traverse device 13 set at one end of the twisting roller 3 and the twisting roller 4 drives the twisting roller 3 and the twisting roller 4 to produce reciprocating lateral displacement. The twisting gripping claw 5, the first sliding sleeve 10, and the second sliding sleeve 11 limit the position of the twisting roller 3 and the twisting roller 4, but do not prevent them from sliding axially. The maximum lateral displacement of the reciprocating motion does not leave the contact position of the yarn sliver 15. The front roller 2, the front leather roller 1, the twisting roller 4 and the twisting roller 3 rotate synchronously at high speed, and the stretched fiber strands are output from the front jaw formed by the meshing of the front roller 2 and the front leather roller 1, and enter the twisting jaw formed by the twisting roller 4 and the twisting leather roller 3. One end of the fiber strands output by the front jaw 16 is gripped by the front jaw 16, and the other end is gripped by the twisting roller 4 and the twisting leather roller 3 and performs reciprocating twisting and torsional motion under the action of transverse friction. The true twist transmission of ring spinning is held by the twisting roller 4 and the twisting leather roller 3, and a fiber arrangement structure pre-twisting control section is formed from the front jaw to the twisting jaw 17. The main fibers of the fiber strands undergo internal and external transfer twisting, and the outer fiber head end of the pre-twisted yarn is clamped by the yarn body. When the yarn The yarn 15 is twisted with the same twist generated by the lateral friction of the twisting roller 4 and the twisting roller 3, and the pre-twist regulates the tight entanglement of the fibers. The outer fibers of the yarn body are dynamically captured and twisted to enhance the fiber transfer efficiency, thereby forming a yarn with an internal fiber transfer-inside-outside transfer and an outer fiber spirally wrapped structure; when the yarn 15 is twisted with the reverse twist generated by the lateral friction of the twisting roller 4 and the twisting roller 3, the pre-twist regulates the fiber torsional stress distribution, the yarn body is twisted and wrapped in the opposite direction along the surface fiber part, the cross-winding solidifies the surface wrapping tightness of the yarn body, and the reverse torsion deformation balances the torque of the internal fibers. The yarn is output after being arranged through a reciprocating cycle of unidirectional and reverse lateral twisting, and is finally wound on the bobbin through a yarn guide hook and a wire ring. The present invention overcomes both the "first bundle splitting, then using a false twister to apply false twist perpendicular to the direction of yarn movement to achieve torque-balanced yarn formation" and the "semi-open serial re-spinning method of reshaping the triangular area of ​​the yarn forming section and passively rotating sheaves for aggregation." Essentially, it synchronizes rotation with the yarn transfer and delivery speed, resulting in torsional twisting of the fiber strands, forward and reverse twisting and wrapping of the outer fibers, and torque release of the inner fibers. This not only streamlines the compact spinning and low-torque spinning processes and mechanisms, shortening the process flow, but also reduces yarn hairiness and improves yarn strength, softness, and smoothness. It inherits the wide range of raw materials and variety adaptability of traditional ring spinning, breaking through the limits of yarn count. The present invention is easy to operate, requires no additional energy consumption, has a simple and clear mechanism, and is easy to promote and use.

[0022] exist Figure 2In the yarn, a single strand is composed of outer fibers 18 and inner fibers 19. The outer fibers 18, with their tightly packed Z twist and reversely wound S twist, have forward and reverse twisting and wrapping, which enhances yarn strength and reduces surface hairiness. At the same time, the opposite torques created by the two reverse wrappings reduce the overall torque of the single yarn. The reverse torsional deformation of the inner fibers 19 balances the torque, and the torsional curl is less than that of the outer fibers 18. The fiber arrangement angle is much smaller than that of the outer fibers 18, which releases the internal twist of the yarn, evenly distributes stress, and makes the yarn feel soft. The combined arrangement of the inner and outer fibers creates a new structural yarn that is "tight outside and loose inside," with twisted fiber strands twisted in an interlocking manner, outer fibers twisted in forward and reverse directions, and internal fibers releasing torque.

[0023] On this basis, the traverse device provided at one end of the twisting roller and the twisting roller and having the function of driving them to perform reciprocating traverse can be designed as one of the mechanisms for performing reciprocating traverse function, including a motor mechanism, a reciprocating screw mechanism, a gear mechanism, and a cam mechanism.

[0024] On this basis, there may be three types of reciprocating motion relationships between the twisting roller and the twisting roller: 1. The twisting roller and the twisting roller rotate and reciprocate at the same time, and the lateral directions of the two remain opposite, and the lateral directions change at the same time; 2. Only the twisting roller rotates and reciprocates, and the twisting roller only rotates; 3. Only the twisting roller rotates and reciprocates, and the twisting roller only rotates. The above three reciprocating lateral motion relationships all fall within the content protected by the present invention.

[0025] On this basis, the form of fixing the multi-section twisting rollers 1 on the same reciprocating shaft 7 also falls within the scope of protection of the present invention.

[0026] On this basis, the size, traverse distance and traverse speed of the twisting roller can be adjusted according to the needs of the spun yarn count. The improvement of the twisting roller according to the spun yarn count is protected by the present invention.

[0027] The spinning method of the present invention for regulating the fiber yarn-forming structure by traverse motion on a ring spinning frame is applicable to a spinning system based on ring spinning, including compact spinning, soft spinning, siro spinning and the like. Specific embodiments

[0029] In this example, 19.7 tex yarn was produced using the spinning method of the present invention. The raw material used in the experiment was 100% pure cotton roving. The spindle speed of the ring spinning machine was 7000 rpm. The spinning was performed with a twisting roller width of 60 mm, a traverse distance of 10 mm, and a traverse speed of 1 m / min.

[0030] For each yarn number, single-ply yarn samples were processed using the conventional ring spinning method and the spinning method of the present invention for comparison. The main properties of each yarn sample were tested, and the residual torque was tested using the wet winding method. The main performance test results of each yarn sample are shown in Table 1:

[0031] Table 1

[0032]

[0033] As can be seen from Table 1, the hairiness and residual torque (wet kink number) of the yarn spun by the spinning method of the present invention are significantly reduced, and compared with the yarn spun by the traditional ring spinning machine, the breaking strength and elongation of the yarn spun by the spinning device of the present invention are significantly improved, while the yarn evenness can be basically maintained, realizing the production of a new structural yarn that is "tight outside and loose inside", with twisting of the fiber strands, forward and reverse twisting and wrapping of the outer fiber, and torque release of the inner fiber. Although the technical method is simple, it effectively improves the yarn quality, and its manufacturing cost is low, making it suitable for promotion and application in the textile industry.

[0034] In this document, directional terms such as front, back, top, and bottom are defined based on the positions of components in the accompanying drawings and relative to each other, and are intended only for clarity and convenience in describing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0035] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A yarn, spun by a spinning method using a ring spinning frame with traverse-controlled fiber yarn formation, characterized in that: The spinning method is as follows: the stretched fiber strips are output from the front jaw formed by the front roller and the front roller, and enter the twisting jaw formed by the twisting roller and the twisting roller; one end of the fiber strips output from the front jaw is gripped by the front jaw, and the other end is gripped by the twisting roller and the twisting roller and performs a reciprocating twisting and torsional motion under the action of lateral friction; wherein, when the yarn strips pass through the twisting roller and the twisting roller to generate the same-direction twist due to the lateral friction, the pre-twist regulates the tight entanglement of the fibers, and the outer layer fibers of the yarn are dynamically captured and twisted to form a yarn with an inner fiber transfer-into-outside-outside-transfer and an outer layer fiber spirally wrapped; when the yarn strips pass through the twisting roller and the twisting roller to generate the same-direction twist, the pre-twist regulates the tight entanglement of the fibers, and the outer layer fibers of the yarn are dynamically captured and twisted to form a yarn with an inner fiber transfer-into ... The yarn is twisted with reverse twist generated by the lateral friction of the twisting rollers and the twisting rollers, and the pre-twist regulates the torsional stress distribution of the fiber. The yarn body is twisted and wrapped in the opposite direction along the surface fiber part, and the cross-winding solidifies the surface wrapping tightness of the yarn body. The reverse torsion deformation balances the torque of the internal fibers. The yarn is output after being twisted and twisted in the same direction and reverse direction, and is finally wound on the bobbin after passing through the yarn guide hook and the steel wire ring. The yarn is composed of outer fibers and inner fibers, wherein the outer fibers are twisted and wrapped around the outer peripheral surface of the inner fibers in the forward and reverse directions, and the torsional curling and fiber arrangement inclination angle of the inner fibers are smaller than those of the outer fibers.

2. A spinning device for producing a yarn as claimed in claim 1, comprising a front roller and a front top roller that cooperate with each other, characterized in that: The spinning device also includes a twisting roller and a twisting roller, the twisting roller is placed at the front end of the front roller, one end of the front roller is connected to a motor device with a rotation function via a bearing sleeve installed on the frame wall panel, the front roller and the twisting roller have a roller gear at one end, and the bridge gear connects the front roller and the twisting roller. At the same time, the tooth profile of the bridge gear matches the tooth profile of the front roller and the twisting roller gear. One end of the twisting roller is connected via a first sliding sleeve installed on the frame wall panel with a traversing device with a reciprocating traversing function. The twisting roller is placed on the upper end of the twisting roller, and the twisting roller is fixed on the reciprocating shaft. The reciprocating shaft portion between the two pairs of twisting rollers is fixed to a twisting gripping claw installed on the cradle body, and the twisting gripping claw maintains the same horizontal position with the second sliding sleeve. One end of the reciprocating shaft is connected via a second sliding sleeve installed on the frame wall panel with a traversing device with a reciprocating traversing function.

3. A spinning device according to claim 2, characterized in that: The traverse device is a mechanism that performs a reciprocating traverse function among a motor mechanism, a reciprocating screw mechanism, a gear mechanism, and a cam mechanism.

4. A spinning device according to claim 2, characterized in that: There are three types of reciprocating motion relationships between the twisting roller and the twisting roller: the twisting roller and the twisting roller rotate and reciprocate at the same time, and the lateral directions of the two remain opposite, and the lateral directions change at the same time; or only the twisting roller rotates and reciprocates, and the twisting roller only rotates; or only the twisting roller rotates and reciprocates, and the twisting roller only rotates.

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