Bilateral ring spinning machine

Abstract

The application discloses a double-sided ring spinning machine, which comprises a device rack, a plurality of independent spinning units arranged on the device rack, a guide yarn roll and a roving yarn roll arranged on the two sides of the device rack respectively, a drawing system for introducing the guide yarn and the roving into a twisting device, a hair suppression mechanism arranged between the roving yarn roll and the drawing system, a plurality of structural cylinders of the hair suppression mechanism, closed ends of the structural cylinders, a bundling hole in the center of the structural cylinders, a sandwich in the cylinder wall, a liquid supply pipeline, atomizing nozzles arranged on the side wall uniformly, and salt water, sodium acetate solution or water as the atomizing medium, continuously decreasing humidity from the side of the roving yarn roll to the side of the drawing system, and water as the atomizing medium in the structural cylinder closest to the side of the drawing system. The application improves the appearance quality and performance of the yarn, reduces the generation of the yarn hair, and improves the spinning production efficiency through the unique double-sided yarn guide design and the hair suppression mechanism.

Description

Technical Field

[0001] This invention relates to ring spinning technology in the field of textile processing, and specifically to a double-sided ring spinning machine that can reduce yarn hairiness during the spinning process. Background Technology

[0002] Currently, ring spinning is the most widely used and common spinning method in the market, and its spun products account for more than 80% of the entire spinning market share. Its operating principle is as follows: after the yarn or fiber is drawn, a fiber sliver is obtained. The fiber sliver is introduced by the rotation of the ring spinning steel wire ring, and then twisted into fine yarn. During the twisting process, the fibers are wrapped and connected inside and outside in the yarn to form or obtain a variety of yarn products with a compact structure, high strength, and suitable for yarn making, weaving and knitting.

[0003] However, in the existing ring spinning machine, the friction between the yarn and the traveler and yarn guide, as well as the stretching and deformation of the yarn during the spinning process, all contribute to the formation of yarn hairiness. The cause of this yarn hairiness can be attributed to the fact that, during the aforementioned production process, some fibers in the fiber sliver fail to be fully integrated into the yarn due to factors such as slippage, curling, and free movement, resulting in hairiness on the yarn surface. These incompletely integrated fibers not only adversely affect the appearance quality of the yarn but may also reduce its strength and abrasion resistance.

[0004] Furthermore, during the winding process, the fuzz already formed on the yarn will generate additional contact friction with components such as the yarn guide and tensioning parts. This friction causes the fiber ends inside the yarn to be pulled out and freed to the yarn surface, further exacerbating the formation and growth of fuzz. In extreme cases, this phenomenon will severely damage the integrity of the yarn structure, leading to exposed fibers inside the yarn and the formation of structural gaps, thereby significantly reducing the local strength of the yarn. This not only easily leads to yarn breakage or the formation of localized knots during processing and use, but also makes the fuzz phenomenon on the yarn surface more pronounced. At the same time, this may also adversely affect subsequent dyeing processes, such as causing color differences, seriously affecting the quality and performance of the yarn. In addition, this phenomenon may also reduce spinning production efficiency and may induce fly waste, greatly disrupting the working environment.

[0005] Given the aforementioned reasons, improvements to ring spinning machines are imperative, aiming to reduce yarn hairiness and thus improve yarn quality and production efficiency. For example, some manufacturers have opted to add devices to the yarn guide section to reduce yarn hairiness. These devices primarily rely on heat and wet treatment or false twisting technology (mechanical and airflow types) to optimize the yarn structure and reduce hairiness. Wet treatment is favored due to its lower cost, but existing spray humidification devices still have limitations in solving the cotton yarn hairiness problem. Traditional devices use a single sprayer or nozzle for wetting, resulting in limited wetting effectiveness and difficulty in preventing the regeneration of cotton yarn hairiness in a dry state. Especially at room temperature, the atomized water on the cotton yarn surface evaporates easily, causing the yarn to dry naturally during spinning, and the hairiness problem reappears. Using low-temperature water atomization spraying or increasing the spray volume can improve humidification, but low-temperature water atomization spraying still cannot prevent the problem of excessively rapid evaporation of moisture from the yarn surface, while increasing the spray volume will lead to overly wet yarn. Neither approach can completely solve the problem and may also negatively impact subsequent processes. Summary of the Invention

[0006] The technical problem solved by the present invention is to provide a double-sided ring spinning machine, which effectively reduces the generation of yarn hairiness during the spinning process through a unique double-sided yarn guiding design, thereby improving the appearance quality and performance of the yarn and solving the defects in the above-mentioned technical background.

[0007] The technical problem solved by this invention is achieved by the following technical solution:

[0008] A double-sided ring spinning machine includes a frame on which multiple spinning positions are arranged along the length direction, and each spinning position is provided with an independent spinning unit.

[0009] Each spinning unit includes a guide filament spool and multiple roving spools. The guide filament spool is located on one side of the frame, while the multiple roving spools are located together on the other side of the frame. The guide filaments drawn from the guide filament spool and the rovings drawn from the roving spools are introduced into the twisting device through the drafting system.

[0010] A hairiness suppression mechanism is also provided between the roving roll and the drafting system; the hairiness suppression mechanism includes multiple structural cylinders spaced apart, the structural cylinders being positioned on the path of the roving roll leading out; the structural cylinders are closed at both ends, and a bundling hole for multiple rovings to pass through is opened at the center of the closed end; the structural cylinders have a sandwich layer in the cylinder wall, a liquid supply pipeline is arranged in the sandwich layer, and atomizing nozzles connected to the liquid supply pipeline are uniformly formed on the side wall of the inner cylinder cavity of the structural cylinder;

[0011] The atomizing nozzle uses salt water, sodium acetate solution, or water as the atomizing medium.

[0012] The humidity inside the multiple structural cylinders decreases continuously from the end of the roving roll to the drafting system side, and the structural cylinder closest to the drafting system uses clean water as the atomizing medium.

[0013] As a further limitation, a tensioning yarn guiding mechanism is provided between the guide yarn roll and the guide yarn drafting system; the tensioning yarn guiding mechanism includes two yarn guiding rods that are staggered vertically, and the two yarn guiding rods are respectively located on both sides of the line connecting the guide yarn roll exit position and the drafting system inlet position;

[0014] The yarn guide rod includes a fixed-position shaft and a sleeve fitted on the shaft and capable of rotating along the shaft axis; the sleeve has a smooth outer tube surface, and the yarn guide rod uses the outer tube surface of the sleeve as the contact surface for guiding the yarn / roving.

[0015] As a further definition, the drawing system includes a plurality of rollers arranged in sequence, and rubber rollers arranged corresponding to the rollers; and a pair of rubber rollers arranged opposite each other are formed after the last roller / rubber roller in position.

[0016] As a further limitation, the inner diameter of a single structural cylinder is 30-50 mm, the cylinder length is set to 200-300 mm, and the corresponding roving feeding speed in the structural cylinder area is 150-200 mm / s; so that the roving does not come into contact with the cylinder wall when it passes through, thereby avoiding additional friction and damage while ensuring that the roving is adequately wetted and has a hair suppression effect in the cylinder.

[0017] As a further limitation, the drafting system and the twisting device are arranged on one side of the guide yarn spool on the frame, and the multiple roving spools and the corresponding hairiness suppression mechanisms are arranged on the other side of the frame independently, so as to realize the two-sided separation layout of the spinning process and leave more travel path space for the roving, so that the guide yarn and the roving spool can operate independently during the spinning process without interfering with each other.

[0018] As a further limitation, a refrigerant pipe is also provided in the interlayer, and the refrigerant pipe is externally connected to a semiconductor refrigeration system. The structural cylinder can be cooled by the refrigerant pipe so that the temperature inside the cavity of the structural cylinder is 8-15°C lower than the room temperature.

[0019] As a further limitation, the cylindrical body of the structure is provided with a sealing cover at both ends, and an assembly hole seat is formed in the middle of the sealing cover. The sealing cover is detachably assembled with a guide seat through the assembly hole seat. The guide seat is provided with a clustering hole in the middle, and a smooth outwardly expanding arc-shaped guide surface is provided at the clustering hole position.

[0020] As a further limitation, the atomizing nozzle is a ceramic atomizing nozzle.

[0021] As a further limitation, a drying device is provided after the twisting device.

[0022] Beneficial effects: The double-sided ring spinning machine of the present invention, through the double-sided yarn guide design, separates the guide yarn roll and the roving roll on both sides of the machine frame, ensuring that the guide yarn and the roving roll are spun independently and do not interfere with each other during the spinning process, thereby reducing the fuzz phenomenon caused by interaction.

[0023] Meanwhile, multiple structural cylinders are used as a hair-suppressing mechanism to continuously wet the yarn. Salt water and sodium acetate solution are used as front-end atomizing media to soften the roving fibers. This not only ensures the continuity of yarn wettability, but also prevents the yarn surface from becoming overly wet, which would lead to a decline in yarn quality. As a result, while effectively suppressing hair formation and generation, the overall quality of the yarn, production efficiency, and the smoothness of subsequent processing are also improved. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of a single structural cylinder in the hair suppression mechanism of a preferred embodiment of the present invention.

[0026] The components are as follows: 1. Guide yarn roll; 2. Guide yarn; 3. First guide yarn guide rod; 4. Second guide yarn guide rod; 5. First roving roll; 6. Roving; 7. Roving guide rod; 8. Second roving roll; 9. Structural cylinder; 10. Rear roller; 11. Middle roller; 12. Front roller; 13. Rear roller; 14. Middle roller; 15. Front roller; 16. Lower roller; 17. Upper roller; 18. Steel wire ring; 19. Fine yarn roll; 20. Atomizing medium interface; 21. Refrigerant interface; 22. Outer cylinder wall; 23. Refrigerant pipe; 24. Jacket; 25. Liquid supply pipe; 26. Inner cylinder wall; 27. Cylinder cavity; 28. Refrigerant outlet hole; 29. ​​Drain hole; 30. Atomizing nozzle; 31. Bundling hole; 32. Guide seat. Detailed Implementation

[0027] To make the technical means, creative features, objectives, and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. The described embodiments are merely some, not all, of the embodiments of this invention.

[0028] It should be noted that, in the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, "multiple" means two or more, and the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a chemical connection, or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0029] See Figure 1 , Figure 2 A preferred embodiment of the double-sided ring spinning machine is provided. In this embodiment, the double-sided ring spinning machine has an equipment frame. The equipment frame should have a frame length that matches the workshop size. The frame style can be selected and adjusted by those skilled in the art according to specific production needs and site environment. The equipment frame is provided with multiple spinning work positions at intervals along its length, and each spinning work position is provided with an independent spinning unit.

[0030] The working parts of the spinning unit are mounted on the frame, and the frame fixes the positions of each functional component. The structure of a single spinning unit is as follows: Figure 1 As shown, the spinning unit includes a guide filament spool 1, a first roving spool 5, a second roving spool 8, a hairiness suppression mechanism, a drafting system, and a twisting device. During operation, the entire spinning unit utilizes the guide filament drawn from the guide filament spool 1 as the core filament and the rovings drawn from the first roving spool 5 and the second roving spool 8 as wrapping fibers, both introduced into the twisting device through the drafting system for ring spinning. The corresponding first roving spool 5 and second roving spool 8 undergo fiber pretreatment via the hairiness suppression mechanism before the drafting system to reduce hairiness in the subsequent spinning process.

[0031] In the spinning unit, the guide yarn spool 1 is located on one side of the frame. The guide yarn 2 is drawn out by the first guide yarn guide rod 3 and the second guide yarn guide rod 4 and guided to the drafting system. From there, it is introduced into the twisting device on the same side. The first roving spool 5 and the second roving spool 8 are independently located on the other side of the frame. Their rovings 6 are drawn out by the roving guide rod 7 and introduced into the hairiness suppression mechanism in the same direction. After pretreatment by the hairiness suppression mechanism, they are then guided by the drafting system and led to the drafting system. This side-mounted layout not only separates the two sides of the spinning process but also provides ample space for the roving travel path and the hairiness suppression mechanism. This allows the guide yarn 2 and the roving 6 to travel independently during the spinning process without interfering with each other, thus ensuring a dual improvement in spinning quality and efficiency.

[0032] In this embodiment, the guide yarn spool 1 provides the guide yarn 2. The guide yarn 2 passes sequentially through the first guide yarn guide rod 3 and the second guide yarn guide rod 4 before being fed into the twisting device. The first guide yarn guide rod 3 and the second guide yarn guide rod 4 together form the guide yarn tensioning and guiding mechanism, which provides necessary tension and guidance to the guide yarn 2, ensuring a stable supply and smooth transmission of the guide yarn during the spinning process. Simultaneously, by adjusting the position and relative relationship of the first guide yarn guide rod 3 and the second guide yarn guide rod 4 on the frame, guide yarns of different thicknesses and materials can be accommodated.

[0033] Meanwhile, the first roving roll 5 and the second roving roll 8 are used to provide two strands of roving 6 as raw materials. The rear of the roving 6 is guided and merged only by the roving guide rod 7. At the same time, the roving guide rod 7 can also ensure the stable supply and smooth transmission of the roving 6 during the spinning process.

[0034] In another embodiment, considering that the guide yarn 2 and roving 6, as linear fiber materials, are in contact with the guide rod when guided on the tensioning and guiding mechanism, resulting in certain frictional damage, the corresponding first guide yarn guide rod 3, second guide yarn guide rod 4, and roving guide rod 7 can all be improved into a sleeve structure with a rod shaft. The sleeve has a smooth outer tube surface and can rotate along the shaft. When the guide rod uses the outer tube surface of the corresponding tube as the contact surface of the guide yarn 2 / roving 6, it can effectively reduce friction with the guide yarn 2 / roving 6, further reduce yarn damage, and improve spinning quality and efficiency.

[0035] The travel of the guide yarn 2 and the roving 6 on the frame system is achieved through a drafting system, which can be a pre-existing thread traction system used in ring spinning machines. For example, the drafting system in this embodiment includes paired rear rollers 10 and 13, middle rollers 11 and 14, front rollers 12 and 15, upper rollers 17 and 16. The arrangement of the rear rollers 10 and 13, middle rollers 11 and 14, front rollers 12 and 15, upper rollers 17 and 16 is as follows: Figure 1 As shown; during the traction operation, the guide yarn 2 is fed from the guide yarn roll 1 through the first guide yarn guide rod 3 and the second guide yarn guide rod 4 into the jaws of the lower rubber roller 10 and the upper rubber roller 11; while the roving 6 is unwound from the first roving yarn roll 5 and the second roving yarn roll 8, and after being gathered into a bundle by the roving guide rod 7, it passes sequentially through the hairiness suppression mechanism, the rear roller 4, the middle roller 5, the front roller 6, and the corresponding rear rubber roller 7, middle rubber roller 11, and front rubber roller 9; and is fed into the lower rubber roller 10 and the upper rubber roller 11 together with the guide yarn 2.

[0036] The hairiness suppression mechanism of this embodiment is located between the roving guide rod 7 and the drafting system, and includes three structural cylinders 9. These three structural cylinders 9 are arranged sequentially on the line connecting the roving guide rod 7 and the drafting system, so that the roving 6, after being bundled together, passes through the aforementioned three structural cylinders 9 in a straight line. The three structural cylinders 9 have the same structure and style as shown in the figure. Figure 2 As shown:

[0037] Each cylindrical body 9 has a double-layered wall structure, consisting of an outer cylindrical wall 22 and an inner cylindrical wall 26 arranged concentrically. An annular interlayer 24 separates the outer cylindrical wall 22 and the inner cylindrical wall 26, and a refrigerant pipe 23 with sealed ends and a liquid supply pipe 25 are embedded in the interlayer 24. The refrigerant pipe 23 is arranged along the length of the interlayer 24, with refrigerant outlet holes 28 evenly distributed along its body. The liquid supply pipe 25 is designed as a coil structure, tightly wound around the outer cylindrical body of the inner cylindrical wall 26. A connector seat is also provided on one side of the outer cylindrical wall 22, which is specifically equipped with a refrigerant interface 21 for connecting to the refrigerant pipe 23 and an atomizing medium interface 20 for connecting to the liquid supply pipe 25.

[0038] The refrigerant interface 21 is connected to an external semiconductor refrigeration system. This system uses cold air as a medium to effectively cool and maintain the structural cylinder 9 at a low temperature, keeping the internal temperature of the cylinder cavity 27 8–15°C lower than room temperature. This stable low-temperature environment suppresses static electricity generation between the fibers of the roving 6 as it passes through the cylinder cavity 27, causing a shrinkage effect on the surface fibers of the roving 6. This significantly improves the tightness and adhesion between the fibers, effectively suppressing the generation of fuzz and loose fibers, and further improving the overall quality of the yarn. Furthermore, in different embodiments, the thermal insulation performance of the structural cylinder 9 can be further optimized by appropriately selecting the material of the outer cylinder wall 22.

[0039] The liquid supply line 25 is connected to an external atomizing medium supply system. In this embodiment, among the three structural cylinders 9 starting from the roving guide rod 7, the liquid supply lines 25 of the first two structural cylinders 9 located at the top use salt water or sodium acetate solution as the atomizing medium, while the liquid supply line 25 of the last structural cylinder 9 located on the side of the rear rubber roller 10 / rear roller 13 uses clean water as the atomizing medium.

[0040] In this embodiment, all three structural cylinders 9 maintain the same structural dimensions, specifically an inner cylinder diameter of 40 mm and a cylinder length of 250 mm. The corresponding roving feeding speed 6 is set to 150–200 mm / s. The two bundled rovings 6 first enter the cylinder cavity 27 of the structural cylinder 9 through the bundling hole 31 at one end, and then smoothly extend out through the bundling hole 31 at the other end.

[0041] Both ends of the structural cylinder 9 are equipped with sealing caps. In this embodiment, the sealing caps are integrally formed with the outer cylinder wall 22 and the inner cylinder wall 26. The sealing caps have holes at corresponding axial positions, and internal threads are tapped in the holes to serve as assembly seats, facilitating the detachable installation of the guide seat 32. The guide seat 32 is designed as a cap-shaped seat structure with a bundling hole 31 in the middle. This hole is mainly used to gather the two strands of roving 6 after they have been bundled by the roving guide rod 7. It is particularly worth mentioning that a smooth, outwardly expanding arc-shaped guide surface is provided at the bundling hole 31, which effectively reduces the direct friction between the roving 6 and the hole wall when passing through, thereby significantly reducing the risk of damage to the roving 6.

[0042] The closed cover with guide seat 32 helps to improve the thermal insulation performance of the structural cylinder 9.

[0043] By replacing the guide seat 32 with different sized bundle holes 31 on the assembly hole seat, the technical solution of this embodiment can flexibly adapt to different sizes, quantities and types of rovings 6, demonstrating better adaptability and practicality.

[0044] Several atomizing nozzles 30 are spirally arranged on the inner cylinder wall 26. These atomizing nozzles 30 match the contour of the liquid supply pipeline 25 and are connected to the liquid supply pipeline 25 through connecting pipes. When the roving 6 passes through the structural cylinder 9, the atomizing nozzles 30 can atomize and humidify the space of the cylinder cavity 27 by providing atomizing medium through the liquid supply pipeline 25. The atomizing liquid supplied by the liquid supply pipeline 25 forms fine water mist through the atomizing nozzles 23. These water mists can wet the roving 6 as it passes through the cylinder cavity 27.

[0045] In addition, the atomizing nozzle 23 can also form a wet film on the surface of the bundle hole 31 of the guide seat 32 while creating a water atomization environment in the cylinder cavity 27. This wet film not only helps to further gather the fibers of the roving 6, but also plays a lubricating role in the process of the roving 6 passing through the surface of the bundle hole 31, further reducing the friction between the roving 6 and the surface of the bundle hole 31.

[0046] It is important to note that while some existing technologies use spray humidification devices to suppress hairiness during ring spinning, these devices typically involve placing a single sprayer or nozzle along the yarn's path to directly spray water onto the roving, causing fiber adhesion and bundling. However, this method has limited humidification frequency and effectiveness. Furthermore, the atomized water sprayed onto the yarn surface at room temperature evaporates easily, leading to the yarn drying out naturally before spinning is complete, causing hairiness to recur. Additionally, this method can result in uneven moisture distribution on the roving surface, affecting spinning quality and potentially causing equipment corrosion and yarn damage.

[0047] In this embodiment, the fuzz suppression mechanism, through a carefully improved structure cylinder 9, significantly improves the uniformity of wetting the roving 6 by immersing it in a stable water atomization environment within the cylinder cavity 27. This humidifying environment not only continuously wets the roving 6, reducing static electricity and promoting fiber aggregation, but also ensures that the roving 6 maintains a constant humidity during its travel, avoiding the problem that the wetting effect weakens as the travel distance increases.

[0048] The three spaced-apart structural cylinders 9, extending from the roving roll end to the drafting system side, achieve a continuous decrease in humidity within the cylinder. Specifically, the humidity control within the structural cylinders 9 is achieved by adjusting the supply volume and pressure of the atomizing medium in the liquid supply line 25 of each structural cylinder 9, as well as using atomizing nozzles 30 with adapted parameters. This continuous humidity reduction technology not only avoids the problem of uneven moisture distribution on the roving 6 surface but also ensures that the roving 6 gradually adapts to the changing environment from humid to dry during its movement through the fuzz suppression mechanism. This effectively prevents static electricity buildup caused by sudden entry into a dry environment, thereby reducing fiber dispersion and fuzz generation.

[0049] Furthermore, by combining different types of atomizing medium supply systems, using brine or sodium acetate solution as the atomizing medium at the front end significantly reduces the friction between the fibers of the roving 6, improves fiber mobility, and can quickly restore the smoothness, elongation, and compression properties of the roving 6 fibers, allowing the roving 6 to be better stretched and processed as it travels through the bobbin 27. At the rear end, clean water is used as the atomizing medium, maintaining the wettability of the roving 6 while diluting and cleaning excess brine or sodium acetate solution from its surface, avoiding unnecessary chemical residues. This approach ensures excellent twisting performance of the roving 6 during the brief period from passing through the hairiness suppression mechanism to entering the twisting device, significantly improving the adhesion of hairiness and loose fibers on the surface of the roving 6.

[0050] In order to match different atomizing media, the liquid supply pipeline 25 is preferably made of inert tubing, while the atomizing nozzle 30 is preferably made of ceramic atomizing nozzle.

[0051] In order to facilitate the pressure holding of the refrigerant in the interlayer 24 and the discharge of condensate in the cylinder 27, the structural cylinder 9 is installed at an angle on the equipment frame. At the same time, the structural cylinder 9 is also provided with a drain hole 29 on one side of the end of the outer cylinder wall 22, which is connected to the interlayer 24 and the cylinder 27 to achieve the aforementioned functions.

[0052] In this embodiment, the roving 6, after being treated by the hairiness suppression mechanism, has reached an ideal fiber gathering state before entering the twisting device. During the twisting process, the roving 6 and the guide yarn 2 are fed into the twisting device after passing through the lower rubber roller 16 and the upper rubber roller 17.

[0053] The twisting device in this embodiment can be any double or multi-ply twisting device disclosed in the prior art that can be used in ring spinning equipment (multiple sets of roving processing units are set when twisting multi-ply). In the twisting device, the roving 6 and the guide yarn 2 are twisted in a twisting area at the position of the steel wire ring 18 located above the twisting roller using a rotating steel wire ring 18 and a twisting roller (not shown). In this twisting area, the roving 6 and the guide yarn 2 are wound and twisted under the guidance of the rotating steel wire ring 18 to form a tightly interwoven fine yarn, which is then wound and formed on the fine yarn roll 19.

[0054] By precisely controlling the rotation speed of the steel wire traveler 18 and the tension of the twisting roller, the degree and density of yarn twisting can be ensured to meet production requirements. Meanwhile, to guarantee yarn quality and stability, this embodiment also includes a yarn tension detection device (not shown) in the twisting device to monitor the tension changes of the yarn in real time during the twisting process.

[0055] In another embodiment, the tightly interwoven yarn product can also be continuously output to the next processing step after the twisting device. Under this technical condition, a drying device can be set after the twisting device so that the yarn can be dried during the continuous output process after twisting, so as to quickly and thoroughly remove the moisture on the yarn, and then send it to the post-processing step after drying to finally form a high-quality yarn product.

[0056] In summary, the fuzz suppression mechanism in this embodiment, through innovative technologies such as the meticulously designed structural cylinder 9, double-layer cylinder wall structure, refrigerant pipe, and liquid supply pipeline, achieves stable humidification and low-temperature treatment of the roving 6, significantly improving yarn quality and processing efficiency. Simultaneously, the mechanism fully considers the protection of the yarn, avoiding damage and contamination. Therefore, this fuzz suppression mechanism has broad application prospects and significant practical value in the textile industry.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the invention. Furthermore, it should be understood that after reading the technical content of this invention, those skilled in the art can make various alterations, modifications, and / or variations to the invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A double-sided ring spinning machine, characterized in that, The equipment includes a frame, on which multiple spinning positions are arranged along the length direction, and each spinning position is provided with an independent spinning unit; Each spinning unit includes a guide filament spool and multiple roving spools. The guide filament spool is located on one side of the frame, while the multiple roving spools are located together on the other side of the frame. The guide filaments drawn from the guide filament spool and the rovings drawn from the roving spools are introduced into the twisting device through the drafting system. A hairiness suppression mechanism is also provided between the roving roll and the drafting system; the hairiness suppression mechanism includes multiple structural cylinders spaced apart, the structural cylinders being positioned on the path of the roving roll leading out; the structural cylinders are closed at both ends, and a bundling hole for multiple rovings to pass through is opened at the center of the closed end; the structural cylinders have a sandwich layer in the cylinder wall, a liquid supply pipeline is arranged in the sandwich layer, and atomizing nozzles connected to the liquid supply pipeline are uniformly formed on the side wall of the inner cylinder cavity of the structural cylinder; The atomizing nozzle uses salt water, sodium acetate solution, or water as the atomizing medium. The humidity inside the multiple structural cylinders decreases continuously from the end of the roving roll to the drafting system side, and the structural cylinder closest to the drafting system uses clean water as the atomizing medium. A tensioning yarn guiding mechanism is provided between the guide yarn roll and the guide yarn drafting system; the tensioning yarn guiding mechanism includes two yarn guiding rods that are staggered at the top and bottom, and the two yarn guiding rods are respectively located on both sides of the line connecting the guide yarn roll exit position and the drafting system inlet position; The yarn guide rod includes a fixed-position shaft and a sleeve fitted on the shaft and capable of rotating along the shaft axis; the sleeve has a smooth outer tube surface, and the yarn guide rod uses the outer tube surface of the sleeve as the contact surface for guiding the yarn / roving; The interlayer is also provided with a refrigerant pipe, which is connected to an external semiconductor refrigeration system. The structure cylinder can be cooled by the refrigerant pipe so that the temperature inside the structure cylinder cavity is 8~15℃ lower than the room temperature.

2. The double-sided ring spinning machine according to claim 1, characterized in that, The drawing system includes a plurality of rollers arranged in sequence, and rubber rollers arranged corresponding to the rollers; and after the last roller / rubber roller, there are also pairs of rubber rollers arranged opposite each other.

3. The double-sided ring spinning machine according to claim 1, characterized in that, The inner diameter of a single structural cylinder is 30~50mm, the cylinder length is set to 200~300mm, and the corresponding feeding speed of the roving in the structural cylinder area is 150~200mm / s.

4. The double-sided ring spinning machine according to claim 1, characterized in that, The drafting system and the twisting device are mounted on one side of the guide yarn roll on the frame, while the multiple roving rolls and their corresponding hairiness suppression mechanisms are mounted on the other side of the frame independently.

5. The double-sided ring spinning machine according to claim 1, characterized in that, The cylindrical body of the structure is provided with a sealing cover at both ends. An assembly hole seat is formed in the middle of the sealing cover. A guide seat is detachably assembled to the sealing cover through the assembly hole seat. A clustering hole is formed in the middle of the guide seat. A smooth, outwardly expanding arc-shaped guide surface is provided at the position of the clustering hole.

6. The double-sided ring spinning machine according to claim 1, characterized in that, The atomizing nozzle is a ceramic atomizing nozzle.

7. The double-sided ring spinning machine according to claim 1, characterized in that, A drying device is also provided after the twisting device.

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