A yarn beating device and method for glass fibers

Abstract

The present application relates to the technical field of glass fiber production, and particularly relates to a yarn beating device for glass fiber, which comprises a shell and a turbine hollow shaft, wherein the turbine hollow shaft is rotationally arranged on the inner side of a yarn conveying channel, the central hole of the turbine hollow shaft is used for the penetration of yarn, and the front end of the turbine hollow shaft is provided with an annular cutting edge; a jet port is used for jetting high-speed airflow to the direction of the turbine hollow shaft, the defects on the surface of the yarn are blown and stripped by the high-speed airflow, and the turbine hollow shaft is driven to rotate around its own axis by the high-speed airflow, so that the annular cutting edge cuts and strips the defects on the surface of the yarn; the present application realizes the accurate stripping of the defects on the surface of the yarn through the high-speed airflow jetting and the rotating annular cutting edge cutting structure, ensures that the breaking position of the defects is controllable and not easy to be left, thereby improving the yarn beating effect and product quality, and solving the problem of poor yarn beating effect of the existing yarn beating device.

Description

Technical Field

[0001] This invention relates to the field of glass fiber production technology, and in particular to a fiber-forming device and method for glass fibers. Background Technology

[0002] Glass fiber is an important engineering material, widely used in construction, transportation, electronics, electrical engineering, chemical engineering, and defense due to its excellent insulation, high-temperature resistance, corrosion resistance, and mechanical strength. The production process of glass fiber typically includes steps such as raw material melting, drawing, bundling, and twisting. During glass fiber production, the bundling process can easily lead to defects such as fly filaments and fuzz on the yarn surface, seriously affecting product quality. Therefore, beating is a crucial step in glass fiber production, removing surface defects and improving the smoothness and uniformity of the yarn surface.

[0003] Currently, fiberglass yarn beating technology mainly relies on airflow impact or mechanical abrasion. For example, existing technology (such as invention patent application number CN200910165419.1) proposes a beating machine, beating device, and beating method for fiberglass: a device and method for removing surface defects of yarn by using negative pressure and blowing force generated by compressed air. In the process, the yarn needs to be introduced into the yarn inlet of the beating machine, the yarn is sucked in by the negative pressure formed by high-speed airflow, and then the yarn is pushed out by blowing force to remove surface defects.

[0004] When the aforementioned yarn-beating device is used for glass fiber yarn-beating operations, the breakage position of defects under the action of airflow is uncontrollable, which easily leads to some defects not being completely peeled off, resulting in poor yarn-beating effect. Furthermore, the residual fly filaments or fuzz will still affect the strength and surface quality of the yarn in subsequent processing. Summary of the Invention

[0005] In view of this, the present invention proposes a yarn-beating device and method for glass fiber, which achieves precise removal of defects on the yarn surface through high-speed airflow jet and rotating annular cutting structure, ensuring that the breakage position of the defects is controllable and not easily left behind, thereby improving the yarn-beating effect and product quality, and solving the problem of poor yarn-beating effect of existing yarn-beating devices.

[0006] The technical solution of this invention is implemented as follows:

[0007] On one hand, the present invention provides a fiberglass winding device, including a housing and a hollow turbine shaft, wherein,

[0008] The outer casing is provided with a yarn conveying channel, and an air jet is provided on the channel wall at the front end of the yarn conveying channel and an air outlet is provided on the channel wall at the rear end.

[0009] The hollow turbine shaft is rotatably disposed inside the yarn conveying channel, and its central hole is used for yarn to pass through. The front end of the hollow turbine shaft is provided with an annular cutting edge, which is located behind the air jet.

[0010] The jet nozzle is used to spray high-speed airflow toward the hollow turbine shaft, thereby blowing away defects on the yarn surface. The high-speed airflow also drives the hollow turbine shaft to rotate around its own axis, so that the annular cutting edge can cut and peel away defects on the yarn surface.

[0011] Based on the above technical solutions, preferably, the diameter of the central hole of the turbine hollow shaft is equal to the outer diameter of the yarn.

[0012] Based on the above technical solutions, preferably, the hollow turbine shaft includes an outer sleeve and an inner sleeve, wherein,

[0013] The outer sleeve is rotatably disposed in the yarn conveying channel, and a turbine blade is fixedly disposed on the outer periphery of its front end.

[0014] The inner sleeve is detachably disposed inside the outer sleeve, and its inner hole is the center hole of the turbine hollow shaft;

[0015] The front end of the inner sleeve extends forward beyond the outer sleeve, and the extended portion of the front end of the inner sleeve is tapered to form the annular cutting edge.

[0016] Based on the above technical solutions, preferably, a flange is fixedly provided on the outer periphery of the rear end of the inner sleeve, wherein,

[0017] The flange is fixedly connected to the rear end of the outer sleeve by bolts.

[0018] Based on the above technical solutions, preferably, an air cavity is provided inside the front end of the outer shell along the circumference of the yarn conveying channel, wherein,

[0019] An air inlet is provided on the side wall of the air chamber;

[0020] The air jet is located at the rear end of the air chamber, and the air chamber is connected to the yarn conveying channel through the air jet.

[0021] Based on the above technical solutions, preferably, the inner side of the yarn conveying channel is provided with a first annular groove and a second annular groove, wherein,

[0022] The first annular groove is located behind the jet nozzle, and the second annular groove is located behind the first annular groove;

[0023] Both the annular cutting edge and the turbine blade are located inside the first annular groove.

[0024] The air outlet is located on the side of the second annular groove.

[0025] Based on the above technical solutions, preferably, the front end of the first annular groove is conical and the rear end is arc-shaped, so as to form the first guide surface and the second guide surface respectively.

[0026] Based on the above technical solutions, preferably, a variable diameter section is provided on the inner side of the yarn conveying channel and on the channel wall located between the first annular groove and the second annular groove, wherein,

[0027] The inner diameter of the variable diameter section is larger than the inner diameter of the yarn conveying channel to form an air duct.

[0028] Based on the above technical solutions, a preferred embodiment also includes a yarn guide tube, wherein...

[0029] The yarn guide tube is coaxially disposed on the inner side of the front end of the yarn conveying channel, and the yarn guide tube and the yarn conveying channel are detachably disposed.

[0030] The inner diameter of the yarn guide tube is larger than the outer diameter of the inner sleeve.

[0031] On the other hand, the present invention also provides a method for beating glass fibers, which, using the above-mentioned beating device, includes the following steps:

[0032] S1. Fix the outer shell on the yarn conveying path, then insert the yarn traction end from the front end of the yarn conveying channel, then insert it into the center hole of the turbine hollow shaft, then lead it out from the hollow rear end of the turbine hollow shaft, and then fix the yarn traction end on the winding device.

[0033] S2. Connect the jet nozzle to the air source and the air outlet to the air filter. Use the winding device to pull the yarn through the outer shell continuously.

[0034] S3. High-speed airflow is injected into the yarn conveying channel through the jet nozzle. The high-speed airflow is used to pneumatically peel off defects on the yarn surface. At the same time, the high-speed airflow drives the hollow turbine shaft to rotate around its own axis, so that the annular cutting edge cuts the defects circumferentially. In conjunction with the yarn conveying, the annular cutting edge also cuts the defects axially.

[0035] The fiber-winding device and method of the present invention have the following advantages over the prior art:

[0036] (1) By setting up annular cutting edges and air jets, the synergistic effect of airflow stripping and mechanical cutting is achieved, improving the surface smoothness and uniformity of the yarn and ensuring the stability of subsequent weaving, coating and other processing. Among them, the high-speed airflow can not only strip away defects, but also drive the hollow turbine shaft to rotate. The rotating annular cutting edge cuts the defects circumferentially and axially, ensuring that the fracture position of the defects is controllable and reducing residue, thereby improving the yarn beating effect and improving the yarn quality. At the same time, the airflow can also cool the inner sleeve and annular cutting edge, avoiding high temperature from causing the cutting edge to become dull or the yarn surface to be damaged, further improving the yarn beating efficiency and yarn quality.

[0037] (2) By setting the diameter of the central hole of the turbine hollow shaft to be equal to the outer diameter of the yarn, the hole wall and the outer surface of the yarn are kept in slight contact. When the turbine hollow shaft rotates, the hole wall dynamically twists the yarn in a circumferential direction, evenly distributes the fibers, improves the twist and structural density of the yarn, thereby reducing the looseness or slippage of the fibers inside the yarn, improving tensile strength and wear resistance, and optimizing the fiber arrangement on the yarn surface, reducing the probability of breakage caused by stress concentration.

[0038] (3) By setting a detachable inner sleeve and yarn guide tube, a modular design is achieved, which facilitates the replacement of inner sleeves and yarn guide tubes with different inner diameters, making the device adaptable to yarns of different thicknesses and expanding the applicability of the device. At the same time, the modular design facilitates the maintenance and replacement of worn parts to maintain the sharpness of the annular cutting edge and ensure effective cutting. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a perspective view of a fiber-reinforcing device according to the present invention.

[0041] Figure 2 This is a side view of a fiber-winding device according to the present invention;

[0042] Figure 3 for Figure 2 Sectional view along axis AA;

[0043] Figure 4 This is an exploded view of a fiber-winding device according to the present invention.

[0044] In the diagram: 1. Outer shell; 2. Hollow turbine shaft; 3. Yarn guide tube; 4. Air line connector; 5. Mounting base; 21. Outer sleeve; 22. Inner sleeve; 23. Turbine blade; 101. Yarn conveying channel; 102. Air chamber; 201. Annular cutting edge; 221. Flange; 1011. Air jet nozzle; 1012. Air outlet; 1013. First annular groove; 1014. Second annular groove; 1015. Variable diameter section; 1016. Air duct; 1021. Air inlet; 10131. First guide surface; 10132. Second guide surface. Detailed Implementation

[0045] The technical solutions of this invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0046] like Figure 1-4 As shown, a fiberglass winding device of the present invention includes a housing 1 and a hollow turbine shaft 2.

[0047] The outer casing 1 is provided with a yarn conveying channel 101, and the front end of the yarn conveying channel 101 is provided with an air jet 1011, and the rear end of the channel wall is provided with an air outlet 1012. The hollow turbine shaft 2 is rotatably disposed inside the yarn conveying channel 101, and its central hole is used for the yarn to pass through. The front end of the hollow turbine shaft 2 is provided with an annular cutting edge 201, which is located behind the air jet 1011.

[0048] In this structure, the jet nozzle 1011 is used to spray high-speed airflow towards the hollow turbine shaft 2. The high-speed airflow removes defects from the yarn surface through air blowing. Simultaneously, the hollow turbine shaft 2 rotates around its own axis through the interaction between the turbine blades 23 at its front end and the airflow sprayed from the jet nozzle 1011. This rotation causes the annular cutting edge 201 to continuously cut and remove defects from the yarn surface. This achieves a synergistic effect of airflow removal and mechanical cutting, improving the smoothness and uniformity of the yarn surface and ensuring the stability of subsequent weaving, coating, and other processing.

[0049] The high-speed airflow not only removes defects but also drives the hollow turbine shaft 2 to rotate, forming an adaptive power source without the need for an additional power unit. The rotating annular cutting edge 201 cuts the defects circumferentially and axially, ensuring that the breakage position of the defects is controllable and reducing residue, thereby improving the yarn beating effect and thus improving yarn quality. At the same time, the airflow can also cool the inner sleeve 22 and the annular cutting edge 201, preventing high temperature from causing the cutting edge to become dull or damaging the yarn surface, further improving yarn beating efficiency and yarn quality.

[0050] Since the yarn is in a conveying state, the annular blade 201 will make continuous spiral cuts on the defects in both circumferential and axial directions, resulting in low cutting resistance and good cutting effect.

[0051] like Figure 3 As shown, the diameter of the central hole of the turbine hollow shaft 2 is equal to the outer diameter of the yarn, so that the hole wall maintains slight contact with the outer surface of the yarn. When the turbine hollow shaft 2 rotates, the hole wall dynamically twists the yarn circumferentially, evenly distributing the fibers, improving the twist and structural density of the yarn, thereby reducing the looseness or slippage of fibers inside the yarn, improving tensile strength and abrasion resistance, optimizing the fiber arrangement on the yarn surface, and reducing the probability of breakage due to stress concentration.

[0052] Furthermore, the diameter of the central hole of the turbine hollow shaft 2 can be 0.1 to 0.5 mm larger than the outer diameter of the yarn. This ensures that the yarn is not excessively squeezed or damaged by friction during the threading process. This design reduces the yarn running resistance, avoids yarn breakage or surface damage caused by an excessively small hole diameter, and improves the stability and production efficiency of the device.

[0053] like Figure 3 As shown, the hollow turbine shaft 2 includes an outer sleeve 21 and an inner sleeve 22, wherein, as Figure 3 As shown, the outer sleeve 21 is rotatably disposed in the yarn conveying channel 101. Specifically, the rear end of the outer sleeve 21 is rotatably connected to the rear end of the yarn conveying channel 101 via a bearing. A turbine blade 23 is welded and fixed on the outer periphery of the front end of the outer sleeve 21. The turbine blade 23 consists of several blades arranged in a ring array. The tilt angle of the blade matches the airflow direction to maximize torque output. The inner sleeve 22 is detachably disposed inside the outer sleeve 21. Its inner hole is the center hole of the turbine hollow shaft 2. The front end of the inner sleeve 22 extends forward out of the outer sleeve 21, and the extended part of the front end of the inner sleeve 22 is tapered to form an annular cutting edge 201. Therefore, the inner diameter of the annular cutting edge 201 is consistent with the diameter of the center hole of the turbine hollow shaft 2.

[0054] In this structure, the hollow turbine shaft 2 is designed as a detachable structure consisting of an outer sleeve 21 and an inner sleeve 22, facilitating maintenance and replacement of worn parts. The tapered design at the front end of the inner sleeve 22 precisely forms an annular cutting edge 201, enhancing the cutting effect on defects. This structure optimizes the synergy between the turbine blade 23 and the annular cutting edge 201, improving the durability and cutting efficiency of the device.

[0055] In addition, a flange 221 is fixedly provided on the outer periphery of the rear end of the inner sleeve 22, and the flange 221 is fixedly connected to the rear end of the outer sleeve 21 by bolts. The bolted connection between the flange 221 and the outer sleeve 21 ensures a stable fit between the inner sleeve 22 and the outer sleeve 21, preventing loosening or displacement of the turbine hollow shaft 2 during high-speed rotation, improving the stability of the device operation, and extending its service life. It also facilitates the later disassembly of the inner sleeve 22, making maintenance and component replacement easier.

[0056] like Figure 3 The outer casing 1 has an air chamber 102 arranged circumferentially along the yarn conveying channel 101 inside the front end. An air inlet 1021 is provided on the side wall of the air chamber 102. An air jet 1011 is provided at the rear end of the air chamber 102, and the air chamber 102 is connected to the yarn conveying channel 101 through the air jet 1011.

[0057] In this structure, the air jet 1011 adopts a conical hole structure that is wider at the front and narrower at the back, and is evenly distributed around the yarn conveying channel 101 to ensure that the airflow can cover the yarn surface in all directions, thereby improving the defect removal effect. The cone angle is designed to be 15° to 20° to ensure that the airflow velocity reaches its peak at the outlet, while reducing turbulence loss.

[0058] In addition, a first annular groove 1013 and a second annular groove 1014 are provided on the inner side of the yarn conveying channel 101. The first annular groove 1013 is located behind the air jet nozzle 1011, and the second annular groove 1014 is located behind the first annular groove 1013. The annular cutting edge 201 and the turbine blade 23 are both located on the inner side of the first annular groove 1013. The air outlet 1012 is located on the side of the second annular groove 1014.

[0059] In this structure, the stepped layout of the first annular groove 1013 and the second annular groove 1014 provides precise installation space for the turbine blade 23, the annular cutting edge 201, and the outer sleeve 21. The annular cutting edge 201 is located within the first annular groove 1013, avoiding interference with the turbine blade 23 and ensuring that its axial cutting path aligns with the airflow direction, thus improving the efficiency of yarn beating. The air outlet 1012 is located on the side of the second annular groove 1014, allowing for orderly airflow discharge and reducing the interference of airflow backflow on the yarn beating effect. Simultaneously, it facilitates the airflow carrying fallen lint out of the air outlet 1012, preventing waste accumulation.

[0060] like Figure 3As shown, the front end of the first annular groove 1013 is conical, and the rear end is arc-shaped, forming a first guide surface 10131 and a second guide surface 10132, respectively. The first guide surface 10131 guides the airflow smoothly to the smooth turbine blades 23, while the second guide surface 10132 guides the airflow smoothly to the second annular groove 1014, reducing turbulence and energy loss. This design optimizes the airflow path, improves the uniformity of force on the turbine blades 23, ensures the stable rotation of the turbine hollow shaft 2, and further enhances the reliability of the yarn winding. In this structure, the conical angle of the first guide surface 10131 can be 15°–20°, and the arc curvature radius of the second guide surface 10132 can be 3–5 mm. This combination of parameters can reduce airflow velocity fluctuations to ±5%, significantly improving the rotational stability of the turbine hollow shaft 2.

[0061] Furthermore, a variable diameter section 1015 is provided on the inner wall of the yarn conveying channel 101, located between the first annular groove 1013 and the second annular groove 1014. The inner diameter of the variable diameter section 1015 is larger than the inner diameter of the yarn conveying channel 101, forming an air duct 1016. The air duct 1016 formed by the variable diameter section 1015 increases the cross-sectional area of ​​the airflow channel, reduces airflow resistance, and allows the airflow to flow more efficiently within the yarn conveying channel 101. This design balances airflow velocity and pressure, ensuring both the driving efficiency of the turbine hollow shaft 2 and maintaining the strength of the air-blowing stripping, thus improving overall yarn-winding performance.

[0062] like Figure 3 As shown, a yarn guide tube 3 is coaxially arranged on the inner side of the front end of the yarn conveying channel 101. The yarn guide tube 3 is detachable and, together with the inner sleeve 22, is also detachable, achieving a modular design. This facilitates the replacement of inner sleeves 22 and yarn guide tubes 3 with different inner diameters, allowing the device to adapt to yarns of different thicknesses and expanding its applicability. Simultaneously, the modular design facilitates maintenance and replacement of worn parts to maintain the sharpness of the annular cutting edge 201 and ensure effective cutting. Specifically, the yarn guide tube 3 uses a flange structure for installation and fixation to the outer casing 1. A flange is provided at the front end of the yarn guide tube 3, and the flange is connected and fixed to the front end of the outer casing 1 by bolts.

[0063] In addition, the inner diameter of the yarn guide tube 3 is larger than the outer diameter of the inner sleeve 22. This can guide the yarn with defects smoothly into the hollow turbine shaft 2, reduce operating errors, and prevent the defects from interfering with the yarn guide tube 3 and causing the yarn to break.

[0064] like Figure 1As shown, an air inlet 1021 and an air outlet 1012 are each provided with an air line connector 4 for connecting an air source or an air filter. The air source and air filter can be any of the prior art, such as a compressed air station (patent application number: CN202080025849.8) or an air purifier (patent application number: CN202311674570.4). The air source provides a high-speed airflow for the yarn-winding process, the airflow is filtered by the air filter, and the resulting lint and waste material is recovered, thus achieving material recycling.

[0065] In addition, the aforementioned yarn beating device also has a mounting base 5 for fixing the yarn beating device to the yarn conveying path. To facilitate flexible installation of the yarn beating device, such as... Figure 1 As shown, mounting holes are provided on the bottom and both sides of the outer casing 1 for mounting the base 5 on the bottom or side.

[0066] In addition, such as Figure 4 As shown, the outer casing 1 is transparent, making it easy to observe the operation of its internal components and whether the second annular groove 1014 is blocked. Furthermore, the outer casing 1 is composed of two half-shells joined together, which facilitates the installation of the turbine hollow shaft 2 into the outer casing 1.

[0067] The aforementioned yarn beating device is mainly used for automated yarn beating operations in the glass fiber production process. Compared with existing technologies (such as the invention disclosed in application number CN200910165419.1, which describes a yarn beating machine, device, and method for glass fibers), it requires less manual intervention and is easily applied to automated production lines. The yarn includes raw filaments, bobbin yarns, or other filamentous glass fiber products. It can also be used in the weaving section of electronic glass fiber fabric factories to remove defects such as fly filaments and fuzz from the surface of low-twist electronic glass fiber yarn. The yarn beating method includes the following steps:

[0068] S1. Fix the outer shell 1 on the yarn conveying path, then insert the yarn traction end from the front end of the yarn conveying channel 101, then insert it into the center hole of the turbine hollow shaft 2, then lead it out from the hollow rear end of the turbine hollow shaft 2, and then fix the yarn traction end on the winding device.

[0069] S2. Connect the jet nozzle 1011 to the air source and the air outlet 1012 to the air filter. Use the winding device to pull the yarn through the outer shell 1 continuously.

[0070] S3. High-speed airflow is injected into the yarn conveying channel 101 through the jet nozzle 1011. The high-speed airflow is used to pneumatically peel off the defects on the yarn surface. At the same time, the high-speed airflow drives the hollow turbine shaft 2 to rotate around its own axis, so that the annular cutting edge 201 performs circumferential cutting on the defects. In conjunction with the yarn conveying, the annular cutting edge 201 also performs axial cutting on the defects.

[0071] In step S3, the detached filaments, fuzz, and other defects are carried into the second annular groove 1014 by compressed air, and then enter the air filter through the air outlet 1012 for filtration, resulting in a mixed fragment of filaments and fuzz, thus achieving material recycling.

[0072] In step S1, a guide tube 3 with a suitable inner diameter is installed in advance at the front end of the yarn conveying channel 101, and an inner sleeve 22 with a suitable inner diameter is installed in the outer sleeve 21. Therefore, the guide tube 3 and the inner sleeve 22 of this device need to be customized for different types of glass fiber yarn.

[0073] For example, when producing electronic-grade ultrafine yarn (diameter ≤ 8μm), the central hole diameter of the inner sleeve 22 is 0.05±0.01mm larger than the outer diameter of the yarn. The annular cutting edge 201 is made of WC-TiC superhard alloy (hardness ≥ 1400HV), and the cutting edge sharpness reaches 0.01mm, ensuring accurate stripping of the ultrafine yarn and avoiding damage to the thin yarn. At the same time, the airflow speed is reduced to 15-20m / s to reduce the physical impact of high-speed airflow on the ultrafine yarn.

[0074] For example, when producing high-strength, high-modulus glass fiber yarn (tensile strength ≥ 4500 MPa), a double-layer outer tube 21 structure is adopted. The outer layer is made of carbon fiber reinforced composite material, and the inner layer is made of stainless steel, which improves the fatigue resistance of the turbine hollow shaft during high-speed rotation. The inner wall of the yarn guide tube 3 is coated with diamond-like carbon (DLC) coating to reduce the coefficient of friction with the high-strength yarn to below 0.08.

[0075] In addition, the high-speed airflow is ordinary compressed air. To improve the cooling effect, the high-speed airflow can also be high-speed cold air cooled by a cooling device (such as a method and device for cooling compressed airflow disclosed in application number CN200580044942.9), or low-temperature nitrogen gas can be supplied to the air inlet 1021. This achieves cooling of the yarn-making device and the yarn, prevents the yarn surface (such as freshly drawn glass fiber) from softening and sticking due to high temperature, and prevents the yarn surface from being burned.

[0076] 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 within the protection scope of the present invention.

Claims

1. A fiber-winding device, comprising a housing (1), characterized in that: It also includes a turbine hollow shaft (2), wherein, The outer shell (1) is provided with a yarn conveying channel (101), and an air jet (1011) is provided on the channel wall at the front end of the yarn conveying channel (101), and an air outlet (1012) is provided on the channel wall at the rear end. The hollow turbine shaft (2) is rotatably disposed inside the yarn conveying channel (101), and its central hole is used for the yarn to pass through. The front end of the hollow turbine shaft (2) is provided with an annular cutting edge (201), which is located behind the jet nozzle (1011). The jet nozzle (1011) is used to spray high-speed airflow in the direction of the hollow turbine shaft (2), and to blow away defects on the yarn surface by airflow. The high-speed airflow drives the hollow turbine shaft (2) to rotate around its own axis so that the annular blade (201) cuts and peels away defects on the yarn surface. The hollow turbine shaft (2) includes an outer sleeve (21) and an inner sleeve (22). The outer sleeve (21) is rotatably disposed in the yarn conveying channel (101), and a turbine blade (23) is fixedly disposed on the outer periphery of its front end. The inner sleeve (22) is detachably disposed inside the outer sleeve (21), and its inner hole is the center hole of the hollow turbine shaft (2). The front end of the inner sleeve (22) extends forward out of the outer sleeve (21), and the extended part of the front end of the inner sleeve (22) is tapered to form the annular cutting edge (201).

2. The fiber-winding device as described in claim 1, characterized in that: The diameter of the central hole of the turbine hollow shaft (2) is equal to the outer diameter of the yarn.

3. The fiber-winding device as described in claim 1, characterized in that: A flange (221) is fixedly provided on the outer periphery of the rear end of the inner sleeve (22), wherein, The flange (221) is fixedly connected to the rear end of the outer sleeve (21) by bolts.

4. The fiber-winding device as described in claim 1, characterized in that: An air chamber (102) is provided inside the front end of the outer shell (1) along the circumference of the yarn conveying channel (101), wherein, An air inlet (1021) is provided on the side wall of the air chamber (102). The air nozzle (1011) is located at the rear end of the air chamber (102), and the air chamber (102) is connected to the yarn conveying channel (101) through the air nozzle (1011).

5. The fiber-winding device as described in claim 1, characterized in that: The inner side of the yarn conveying channel (101) is provided with a first annular groove (1013) and a second annular groove (1014), wherein, The first annular groove (1013) is located behind the jet nozzle (1011), and the second annular groove (1014) is located behind the first annular groove (1013). The annular cutting edge (201) and the turbine blade (23) are both located inside the first annular groove (1013); The air outlet (1012) is located on the side of the second annular groove (1014).

6. The fiber-winding device as described in claim 5, characterized in that: The front end of the first annular groove (1013) is conical and the rear end is arc-shaped, so as to form the first guide surface (10131) and the second guide surface (10132) respectively.

7. A fiber-winding device as described in claim 5, characterized in that: A variable diameter section (1015) is provided on the inner side of the yarn conveying channel (101) and on the channel wall located between the first annular groove (1013) and the second annular groove (1014), wherein, The inner diameter of the variable diameter section (1015) is larger than the inner diameter of the yarn conveying channel (101) to form an air duct (1016).

8. A fiber-winding device as described in claim 1, characterized in that: It also includes yarn guide tube (3), wherein, The yarn guide tube (3) is coaxially disposed on the inner side of the front end of the yarn conveying channel (101), and the yarn guide tube (3) and the yarn conveying channel (101) are detachably disposed. The inner diameter of the yarn guide tube (3) is larger than the outer diameter of the inner sleeve (22).

9. A method for beating glass fibers, using the beating device as described in claim 1, characterized in that: Includes the following steps: S1. Fix the outer shell (1) on the yarn conveying path, then insert the yarn traction end from the front end of the yarn conveying channel (101), then insert it into the center hole of the turbine hollow shaft (2), then lead it out from the hollow rear end of the turbine hollow shaft (2), and then fix the yarn traction end on the winding device. S2. Connect the air jet (1011) to the air source and the air outlet (1012) to the air filter. Use the winding device to pull the yarn through the outer shell (1) continuously. S3. High-speed airflow is injected into the yarn conveying channel (101) through the jet nozzle (1011). The high-speed airflow is used to pneumatically peel off the defects on the yarn surface. At the same time, the high-speed airflow drives the hollow turbine shaft (2) to rotate around its own axis, so that the annular cutting edge (201) performs circumferential cutting on the defects. In conjunction with the yarn conveying, the annular cutting edge (201) also performs axial cutting on the defects.

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