A vortex spinning with anti-impact function

Abstract

The utility model discloses a vortex spinning with anti -impact function, including support inner layer, the outer end surface of support inner layer is provided with the core layer of yarn, buffer layer, buffer layer equidistance package and is set in the outside of support inner layer, buffer layer is used for deformation to absorb impact energy, the utility model discloses through setting up the fiber structure of different radius, make the inner layer fiber of diameter relatively thick, with the outer layer fiber of gradually reducing diameter, through vortex spinning airflow effect formation inside rigid outside tough gradient structure, and then improve the energy step -by -step absorption efficiency of line body, thereby improved the anti -impact performance of line body, the outside of line body uses high modulus polycarbonate fiber to spiral package simultaneously, make the line body outside form the compact net -like structure, disperse external force and prevent the fiber fracture diffusion, further improved the strength and anti -impact performance of line body outside.

Description

Technical Field

[0001] This utility model relates to the field of vortex spinning technology, specifically to a vortex spinning method with impact resistance. Background Technology

[0002] Vortex spinning is a method that uses air vortexes to create a vortex effect, causing the fiber bundle to wrap around the core yarn and form yarn. The principle is that after the sliver is drafted, it is output from the front roller nip and fed into the vortex tube at high speed with the help of airflow. The vortex tube consists of a core tube and an outer tube. The outer tube has three tangential air inlets and is connected to a blower at the lower end. The blower continuously draws air from the tube, and the outside air enters the vortex tube through the air inlets, generating a vortex-shaped airflow. When the rotating upward airflow reaches the core tube, it merges with the fibers entering through the cotton conveying pipe and forms a cohesive fiber ring along the inner wall of the vortex tube. This ring stably rotates around the axis of the vortex tube at high speed, twisting the fibers into yarn.

[0003] For example, the utility model patent disclosed in publication number CN210420295U discloses an eddy spinning method, which includes a yarn body, a fiber layer, and a structural reinforcement layer. The yarn body is made of intertwined flax fiber strands and nylon fiber strands. The fiber layer includes a fiber reinforcement layer and an eddy spinning layer. The structural reinforcement layer includes reinforcing fiber ropes spirally wound on the eddy spinning layer and a second eddy spinning layer. The structural reinforcement layer includes several reinforcing fiber ropes arranged in a mesh on the fiber layer. The abrasion resistance of the mesh-like reinforcing fiber ropes is equivalent to that of ordinary eddy spinning. A second eddy spinning layer is then set on the outside of the reinforcing fiber ropes using eddy spinning technology to further enhance the structural strength. Additionally, a fiber reinforcement layer is also provided inside the reinforcing fiber ropes. This fiber reinforcement layer is made of carbon fiber with extremely high structural strength, thus also enhancing its structural strength and abrasion resistance to a certain extent.

[0004] Although the aforementioned vortex spinning has certain wear resistance, its impact resistance is insufficient, which reduces its service life. Therefore, there is an urgent need for an vortex spinning yarn with impact resistance to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an eddy current spinning method with impact resistance to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vortex spinning method with impact resistance, comprising a supporting inner layer, wherein a yarn core layer is provided on the outer end face of the supporting inner layer.

[0007] A buffer layer is equidistantly wrapped around the outside of the inner support layer, and the buffer layer is used to absorb impact energy during deformation.

[0008] The outer protective layer comprises multiple sets, and is spirally wrapped around the outside of the buffer layer. The outer protective layer is used to disperse external forces and prevent fiber breakage and spread.

[0009] Preferably, the protective outer layer is made of polycarbonate fiber, and high-modulus polycarbonate fiber is spirally wrapped to form a tight mesh structure, which disperses external forces and prevents fiber breakage and diffusion.

[0010] Preferably, the buffer layer is made of hollow fiber, which can absorb impact energy through deformation and improve the impact resistance of the thread.

[0011] Preferably, the inner support layer is made of high-strength polyester fiber, which serves as the impact-resistant core skeleton and provides basic mechanical properties.

[0012] Preferably, the fiber diameter of the supporting inner layer is ≥3 dtex.

[0013] Preferably, the fiber diameter of the protective outer layer and the buffer layer is ≤1.5dtex, which can improve the efficiency of energy absorption by the yarn.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting fiber structures with different radii, allows the inner layer fibers with a larger diameter and the outer layer fibers with a gradually decreasing diameter to form a gradient structure with inner rigidity and outer toughness through the action of vortex spinning airflow. This improves the efficiency of energy absorption of the yarn at each stage, thereby improving the impact resistance of the yarn. At the same time, the yarn is spirally wrapped with high-modulus polycarbonate fibers, forming a tight mesh structure on the outside of the yarn, which disperses external forces and prevents fiber breakage and diffusion, further improving the external strength and impact resistance of the yarn. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0017] Figure 2 For the present utility model Figure 1 A magnified view of a section at point I;

[0018] Figure 3 This is a side view of the main body of this utility model.

[0019] In the diagram: 1-protective outer layer, 2-buffer layer, 3-supporting inner layer, 4-yarn core layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 One embodiment of this utility model provides: an impact-resistant vortex spinning method, comprising a supporting inner layer 3, and a yarn core layer 4 disposed on the outer end face of the supporting inner layer 3.

[0022] Buffer layer 2 is equidistantly wrapped around the outside of the inner support layer 3. Buffer layer 2 is used to absorb impact energy during deformation.

[0023] The outer protective layer 1 has multiple sets and is spirally wrapped around the outside of the buffer layer 2. The outer protective layer 1 is used to disperse external forces and prevent fiber breakage and spread.

[0024] The outer protective layer 1 is made of polycarbonate fiber. The polycarbonate fiber is surface etched to increase its roughness and enhance the cohesion between fibers. At the same time, high-modulus polycarbonate fiber is spirally wrapped to form a tight mesh structure, which disperses external forces and prevents fiber breakage and diffusion.

[0025] The material of buffer layer 2 is hollow fiber, which can absorb impact energy through deformation.

[0026] The inner layer 3 is made of high-strength polyester fiber, which serves as the core skeleton for impact resistance and provides basic mechanical properties.

[0027] The inner support layer 3 has a fiber diameter ≥3dtex, the outer protective layer 1 and the buffer layer 2 have a fiber diameter ≤1.5dtex, the core layer has a relatively large fiber diameter (≥3dtex), and the outer layer has a gradually decreasing fiber diameter (≤1.5dtex). Through the action of vortex spinning airflow, a gradient structure of "inner rigidity and outer toughness" is formed, which improves the energy absorption efficiency step by step.

[0028] During processing, a dual-channel nozzle design can be adopted: the main channel conveys the core layer fiber, and the secondary channel conveys the buffer layer fiber, realizing synchronous composite spinning. At the same time, the spinning air pressure is increased to 0.6-0.8MPa, which enhances the fiber wrapping tightness and reduces the impact stress concentration point.

[0029] Introducing intermittent tension fluctuations (±10%) during the spinning process promotes the formation of an interwoven network between fibers, enhances impact resistance and toughness, increases twist to 800-1000T / m, and enables the outer fibers to form a tightly wrapped structure, thereby improving tear resistance.

[0030] Working principle: During use, fiber structures with different radii are set so that the inner layer fibers with larger diameters and the outer layer fibers with gradually decreasing diameters form a gradient structure with inner rigidity and outer toughness through the action of vortex spinning airflow. This improves the efficiency of energy absorption of the yarn at each stage, thereby improving the impact resistance of the yarn. At the same time, the outside of the yarn is spirally wrapped with high-modulus polycarbonate fibers, forming a tight mesh structure on the outside of the yarn. This disperses external forces and prevents fiber breakage and diffusion, further improving the external strength and impact resistance of the yarn.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vortex spinning method with impact resistance, comprising a supporting inner layer (3), wherein a yarn core layer (4) is disposed on the outer end face of the supporting inner layer (3), characterized in that: A buffer layer (2) is equidistantly wrapped around the outside of the inner support layer (3), and the buffer layer (2) is used to absorb impact energy during deformation. The outer protective layer (1) is provided in multiple sets, and the outer protective layer (1) is spirally wrapped around the outside of the buffer layer (2). The outer protective layer (1) is used to disperse external forces and prevent fiber breakage and diffusion.

2. The vortex spinning method with impact resistance according to claim 1, characterized in that: The protective outer layer (1) is made of polycarbonate fiber.

3. The vortex spinning method with impact resistance according to claim 2, characterized in that: The buffer layer (2) is made of hollow fiber.

4. The vortex spinning method with impact resistance according to claim 2, characterized in that: The inner support layer (3) is made of high-strength polyester fiber.

5. The vortex spinning method with impact resistance according to claim 2, characterized in that: The fiber diameter of the inner support layer (3) is ≥3dtex.

6. The vortex spinning method with impact resistance according to claim 2, characterized in that: The fiber diameter of the protective outer layer (1) and the buffer layer (2) is ≤1.5dtex.

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