Air jet vortex spinning device, process and core yarn for producing wear-resistant core yarn

Abstract

This invention belongs to the field of core-spun yarn technology, and particularly relates to an air-jet vortex spinning device for producing abrasion-resistant core-spun yarn. The device includes a fiber-opening component with a yarn path I inside, a fiber-opening tube concentrically arranged within the yarn path, and grooves formed on the inner wall of the fiber-opening tube; a dispersing component with a yarn path II inside, a dispersing zone in the middle of the yarn path II; and a spinning component with a yarn path III inside, a bundling tube at the head of the yarn path III. The core-spun yarn produced by this air-jet vortex spinning device for producing abrasion-resistant core-spun yarn has the "raised" fiber ends of the outer short fibers inserted and evenly dispersed inside the filaments, increasing the cohesion between the outer fibers and the core filaments, increasing the strength of the core-spun yarn, reducing the "peeling" problem during weaving, reducing the possibility of fiber loss during washing and daily use friction, and improving the abrasion resistance of the core-spun yarn.

Description

Technical Field

[0001] This invention belongs to the field of core-spun yarn technology, and particularly relates to an air-jet vortex spinning device for producing abrasion-resistant core-spun yarn, an air-jet vortex spinning process for producing abrasion-resistant core-spun yarn, and core-spun yarn. Background Technology

[0002] Core-spun yarn, also known as composite yarn or covered yarn, is a new type of yarn composed of two or more fibers. Core-spun yarn typically uses a strong and elastic synthetic fiber filament as the core yarn, wrapped with short fibers such as cotton, wool, or viscose, and then twisted together to form the yarn. Core-spun yarn combines the excellent properties of both filament core yarn and outer short fiber wrapping.

[0003] Because the outer fibers are twisted outside the core yarn, meaning the outer fibers are wrapped around the surface of the core yarn, the contact area is small, resulting in poor cohesion between the outer fibers and the core yarn. Furthermore, because the individual fibers of the outer fibers are relatively short, the free ends of the fibers cannot make effective contact with the core yarn. As a result, during washing and daily use, the fibers exhibit poor abrasion resistance, manifesting as pilling and shedding due to friction. Summary of the Invention

[0004] To address the problems in the prior art, the present invention proposes the following technical solution:

[0005] Air-jet vortex spinning equipment for producing abrasion-resistant core-spun yarn, including

[0006] A fiber opening component, wherein the fiber opening component has a yarn channel inside, and a fiber opening tube is concentrically arranged in the yarn channel, and a groove is formed on the inner wall of the fiber opening tube.

[0007] The discrete component has a yarn channel II inside, a discrete area is provided in the middle of the yarn channel II, and an air chamber I is provided in the side wall of the discrete component corresponding to the position of the discrete area. One side of the air chamber I is provided with a jet hole I that communicates with the discrete area, and the other side is provided with an air inlet pipe I that communicates with the outside.

[0008] The spinning part has a yarn passage three inside, and a bundling tube is provided at the head of the yarn passage three; wherein, short fibers pass through the fiber opening part and are opened through the fiber opening tube, and long filaments pass through the dispersing part and are dispersed through the airflow ejected from the jet hole one; the short fibers and long filaments enter the bundling tube and are mixed, and then the spinning part performs jet vortex spinning to form core-spun yarn.

[0009] As a preferred embodiment of the above technical solution, the fiber opening tube is located in the middle of the yarn path one, and a cavity one is provided at the tail of the yarn path one, with a rotating guide wheel provided inside the cavity one.

[0010] As a preferred embodiment of the above technical solution, a separation plate for assisting in the dispersion of filaments is provided in the discrete region, and the separation plate is arranged opposite to the injection hole.

[0011] The separation plate has longitudinally distributed raised strips on the end face opposite to the injection hole.

[0012] As a preferred embodiment of the above technical solution, the tail end of the yarn path two is provided with a cavity two, and the cavity two is rotatably fitted with at least one set of shaping wheels, which clamp and transport the filaments in a discrete state.

[0013] As a preferred embodiment of the above technical solution, the side wall of the spinning part is provided with air chamber two and air chamber three in sequence from the head end to the tail end. Air chamber two is provided with injection hole two on one side opposite to yarn path three and air inlet pipe two communicating with the outside on the other side. Air chamber three is provided with injection hole three on one side opposite to yarn path three and air inlet pipe three communicating with the outside on the other side.

[0014] The rotating airflows generated by jet holes two and three are in opposite directions, and the airflow velocity from jet hole three is greater than that from jet hole two.

[0015] As a preferred embodiment of the above technical solution, a premixed component is also included. The premixed component includes a positioning part and a force-applying part arranged opposite to each other in the horizontal direction. The positioning part limits one side of the short fiber and filament mixture, and the force-applying part applies force to the short fiber, so that the short fiber part is embedded inside the filament.

[0016] As a preferred embodiment of the above technical solution, the positioning part includes a wheel body one and a wheel body two that are longitudinally distributed and rotatably arranged;

[0017] The force-applying part includes a rotatable cylinder. The first wheel, the second wheel, and the cylinder are arranged in a triangle. The cylinder is provided with air holes. Both ends of the cylinder extend axially to form a tube. The tube is rotatably fitted with a second tube and connected by a mechanical seal. The cylinder is provided with a cover plate, which is C-shaped. The end of the cylinder opposite to the positioning part is exposed.

[0018] The process of the air-jet vortex spinning apparatus for producing abrasion-resistant core-spun yarn according to any one of the above includes the following steps:

[0019] S1. Fiber preparation: A. Short fibers are introduced into yarn path one, and the fiber opening tube performs fiber opening operation on the short fibers.

[0020] B. The filament is introduced into the yarn path two, and the airflow ejected from the jet hole one performs discrete operations on the filament in the discrete zone.

[0021] S2, Fiber Mixing: Short fibers that have undergone the fiber opening operation and long filaments that have undergone the dispersion operation are introduced into yarn path three and mixed by bundling tube;

[0022] S3. Obtaining core-spun yarn: The spinning unit performs air-jet vortex spinning on the bundled and mixed short fibers and filaments to form core-spun yarn.

[0023] A core-spun yarn produced using an air-jet vortex spinning apparatus for producing abrasion-resistant core-spun yarn as described in any one of the above claims.

[0024] The beneficial effects of this invention are as follows:

[0025] The core-spun yarn produced by this jet vortex spinning device for producing abrasion-resistant core-spun yarn has the "raised" fiber ends of the outer short fibers inserted and evenly dispersed inside the filaments, increasing the cohesion between the outer fibers and the core filaments, increasing the strength of the core-spun yarn, reducing the "peeling" problem during weaving, reducing the possibility of fiber loss during washing and daily use friction, and improving the abrasion resistance of the core-spun yarn. Attached Figure Description

[0026] Figure 1 The diagram shown is a schematic representation of the air jet vortex spinning device used in this embodiment for producing abrasion-resistant core-spun yarn.

[0027] Figure 2 What is shown is Figure 1 Schematic diagram of the structure of the split fiber optic connector;

[0028] Figure 3 What is shown is Figure 1 Schematic diagram of the discrete component;

[0029] Figure 4 What is shown is Figure 3 A schematic diagram of the AA section of the discrete component;

[0030] Figure 5 What is shown is Figure 1 Schematic diagram of the structure of the intermediate premix component;

[0031] Figure 6 What is shown is Figure 4 Side sectional view of the force-applying part;

[0032] Figure 7 What is shown is Figure 1 A schematic diagram of the structure of the spinning machine.

[0033] Reference numerals: 10. Fiber opening component, 11. Fiber opening tube, 12. Cavity 1, 13. Guide roller, 14. Discrete component, 20. Fiber opening 2, 22. Discrete zone, 23. Air chamber 1, 231. Air inlet pipe 1, 232. Separation plate, 24. Raised strip, 241. Cavity 2, 25. Setting roller, 26. Premixing component, 30. Positioning part, 31. Wheel body 1, 311. Wheel body 2, 312. Force application part, 32. Cylinder, 33. Air hole, 331. Tube body 1, 332. Cover plate, 34. Tube body 2, 35. Mechanical seal, 36. Spinning component, 40. Fiber opening 3, 41. Bundling tube, 42. Air chamber 2, 43. Air inlet pipe 2, 431. Air chamber 3, 45. Air inlet pipe 3, 451. Short fiber, 50. Filament, 60. Core-spun yarn, 70. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0035] Example 1

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 7 As shown, the jet vortex spinning device for producing wear-resistant core-spun yarn includes: a fiber opening member 10, the fiber opening member 10 having a yarn path 11 inside, a fiber opening tube 12 concentrically arranged in the yarn path 11, and grooves formed on the inner wall of the fiber opening tube 12.

[0037] Discrete component 20 has a yarn channel 21 inside. A discrete area 22 is provided in the middle of the yarn channel 21. An air chamber 23 is provided in the side wall of the discrete component 20 corresponding to the discrete area 22. One side of the air chamber 23 is provided with a jet hole 231 that is connected to the discrete area 22, and the other side is provided with an air inlet pipe 232 that is connected to the outside. Gas enters the interior of the air chamber 23 through the air inlet pipe 232 and is sprayed into the interior of the discrete area 22 through the jet hole 231.

[0038] The spinning element 40 has a yarn passage 3 41 inside, and a bundling tube 41 is provided at the head of the yarn passage 3 41. The short fiber 50 uses cotton fiber strips as the outer fiber, and the filament 60 uses polyester filament as the core yarn. The number of polyester filaments is at least two. The short fiber 50 passes through the fiber opening element 10 and is opened through the fiber opening tube 12. The filament 60 passes through the dispersing element 20 and is dispersed through the airflow ejected from the jet hole 231. The short fiber 50 and the filament 60 enter the bundling tube 41 and are mixed. After being spun by air jet vortex spinning in the spinning element 40, they form a core-spun yarn 70.

[0039] In this air-jet vortex spinning device for producing wear-resistant core-spun yarn, in the fiber-opening component 10, cotton fiber strips are introduced into the interior of yarn path 11, and the grooves on the inner wall of the fiber-opening tube 12 open the cotton fiber strips; in the dispersing component 20, filaments 60 are introduced into yarn path 21, and when passing through the dispersing zone 22, the airflow ejected from the jet hole 231 disperses the filaments 60; in the spinning component 40, the bundling tube 41 mixes the short fibers 50 and the filaments 60, and then performs air-jet vortex spinning to form core-spun yarn 70.

[0040] Before spinning, the short fiber 50, which serves as the outer fiber, is opened, so that one end of a single fiber in the short fiber 50 is detached from the fiber strip and is in a "raised" state. The filament 60, which serves as the core yarn, is discrete, so that multiple filaments 60 are in a discrete state in the discrete region 22. They are then mixed in the bundle tube 41, so that the "raised" end of the short fiber is inserted between multiple filaments 60. Finally, the core-spun yarn 70 is formed by air jet vortex spinning through the spinning unit 40.

[0041] The core-spun yarn 70 produced by this device has the "raised" fiber ends of the outer short fibers 50 inserted and evenly dispersed inside the filaments 60, increasing the cohesion between the outer fibers and the core filaments, increasing the strength of the core-spun yarn 70, reducing the "peeling" problem during weaving, reducing the possibility of fiber falling off during washing and daily use friction, and improving the abrasion resistance of the core-spun yarn 70.

[0042] like Figure 2 As shown, the fiber opening tube 12 is located in the middle of the yarn path 11, and a cavity 13 is provided at the tail of the yarn path 11. A guide wheel 14 is rotatably fitted inside the cavity 13. The guide wheel 14 is driven to rotate by an external drive component. In this embodiment, two guide wheels 14 can be provided, and the two guide wheels 14 rotate relative to each other in the following direction: Figure 2 As shown by the arrow in the image.

[0043] The short fiber 50 is introduced into the yarn path 11, passes through the fiber opening tube 12, and passes between the two guide rollers 14. This arrangement limits the travel path of the short fiber 50 and ensures the smooth introduction of the short fiber 50.

[0044] like Figure 3 , Figure 4 As shown, a separation plate 24 for assisting in the dispersion of filaments 60 is provided in the dispersion zone 22. The separation plate 24 is arranged opposite to the injection hole 231. The separation plate 24 limits the filaments 60 in the radial direction of the dispersion component 20, so as to avoid the filaments 60 from having a large displacement in the direction perpendicular to the injection hole 231 when the dispersion operation is performed by airflow. This makes the filaments 60 distributed to both sides at the contact point after contacting the separation plate 24, thereby improving the dispersion effect of the filaments 60.

[0045] The separation plate 24 has longitudinally distributed ridges 241 on the end face opposite to the injection hole 231. Multiple ridges 241 can be set, and a notch is formed between adjacent ridges 241. One of the ridges 241 is set opposite to the injection hole 231. When the ridges 241 are set, multiple polyester filaments are distributed in the interior of different notches during the airflow separation operation, which is conducive to the separation of multiple polyester filaments.

[0046] like Figure 3 , Figure 4 As shown, the tail of the yarn path 21 is provided with a cavity 25, and at least one set of shaping wheels 26 are rotatably connected inside the cavity 25. The shaping wheels 26 are driven to rotate by an external drive component.

[0047] In the discrete component 20, the filament 60 is guided into the yarn path 21 and enters the space between two shaping wheels 26 through the discrete zone 22. The shaping wheels 26 clamp and convey the filament 60 in a discrete state, keeping it in a discrete state before it is mixed with the short fiber 50. During mixing, the "raised" fiber can fully enter the interior of the filament 60.

[0048] Meanwhile, the setting wheel 26 clamps and conveys the filament 60, and the guide wheel 14 restricts the travel path of the short fiber 50 to ensure the stability of the tension of the filament 60 and the short fiber 50 during the conveying process. This allows the short fiber 50 to wrap the filament 60 evenly, resulting in a core-spun yarn 70 with high uniformity and improved wear resistance.

[0049] like Figure 7 As shown, air chamber 2 43 and air chamber 3 45 are arranged sequentially from the head end to the tail end in the side wall of the spinning part 40. Air chamber 2 43 has a jet hole 2 431 on one side opposite to yarn path 3 41 and an air inlet pipe 2 432 communicating with the outside on the other side. Air chamber 3 45 has a jet hole 3 451 on one side opposite to yarn path 3 41 and an air inlet pipe 3 452 communicating with the outside on the other side. The rotating airflow formed by jet hole 2 431 and jet hole 3 451 is in opposite directions, and the airflow velocity ejected by jet hole 3 451 is greater than the airflow velocity ejected by jet hole 2 431.

[0050] The second air chamber 43, the second injection hole 431, and the second air inlet pipe 432 form the first nozzle, and the third air chamber 45, the third injection hole 451, and the third air inlet pipe 452 form the second nozzle. That is, the rotating airflow generated by the first nozzle and the second nozzle is in opposite directions, and the airflow velocity of the second nozzle is greater than that of the first nozzle. The mixed short fibers 50 and filaments 60 are first condensed and straightened by the airflow of the first nozzle, and then the surface fibers of the short fibers 50 are separated by the second nozzle and wrapped around the surface of the filaments 60 with a certain twist angle and pressure to form core-spun yarn 70.

[0051] like Figure 5 , Figure 6 As shown, the air-jet vortex spinning device for producing wear-resistant core-spun yarn also includes a premixing component 30. The premixing component 30 includes a positioning part 31 and a force-applying part 32 arranged opposite each other in the horizontal direction. The mixture of short fibers 50 and filaments 60 passes through the positioning part 31 and the force-applying part 32. The positioning part 31 limits one side of the mixture of short fibers 50 and filaments 60, and the force-applying part 32 applies force to the short fibers 50, so that the short fibers 50 are partially embedded in the interior of the filaments 60, thereby improving the mixing effect of the short fibers 50 and the filaments 60 and increasing the cohesion between them.

[0052] like Figure 5 As shown, the positioning part 31 includes a longitudinally distributed and rotatably arranged wheel body 311 and wheel body 312, with the rotation direction as shown in the figure. Figure 5 As shown by the arrows in the diagram, wheel body 311 and wheel body 312 are driven to rotate by an external drive component;

[0053] like Figure 6 As shown, the force-applying part 32 includes a rotatably mounted cylinder 33, a first wheel 311, a second wheel 312, and the cylinder 33 arranged in a triangle. The cylinder 33 is provided with air holes 331. Both ends of the cylinder 33 extend axially to form a first tube 332. An external drive unit drives the cylinder 33 to rotate through the first tube 332. The second tube 35 is rotatably fitted inside the first tube 332 and connected by a mechanical seal 36. The second tube 35 is connected to an external air supply system to provide the airflow required for force application. A cover plate 34 is provided on the outside of the cylinder 33. The cover plate 34 is C-shaped, with the end of the cylinder 33 opposite to the positioning part 31 exposed. The cover plate 34 blocks the air holes 331 on the cylinder 33, leaving only the air holes 331 opposite to the filament 60.

[0054] The mixture of short fibers 50 and filaments 60 passes through the cylinder 33, wheel 1 311 and wheel 2 312. Wheel 1 311 and wheel 2 312 limit one side of the mixture. The airflow ejected from the air hole 331 causes the "raised" end of the fiber in the short fiber 50 to tend to move towards the filament 60 and insert into the interior of the filament 60, thereby improving the mixing effect and solving the problem of premixing of short fibers 50 and filaments 60 during the process.

[0055] The process for using an air-jet vortex spinning device to produce abrasion-resistant core-spun yarn includes the following steps:

[0056] S1. Fiber preparation: A. Short fiber 50 is introduced into yarn path 11, and fiber opening tube 12 performs fiber opening operation on short fiber 50.

[0057] B. The filament 60 is introduced into the yarn path 21, and the airflow ejected from the jet hole 231 performs a discrete operation on the filament 60 in the discrete region 22.

[0058] S2, Fiber mixing: The short fibers 50 after the fiber opening operation and the long filaments 60 after the dispersion operation are introduced into the yarn path 3 41 and bundled and mixed through the bundling tube 42.

[0059] S3. Obtaining core-spun yarn: The spinning piece 40 performs jet vortex spinning on the short fibers 50 and filaments 60 that have been bundled and mixed to form core-spun yarn.

[0060] The process of this air-jet vortex spinning device for producing wear-resistant core-spun yarn involves opening the short fibers 50, which serve as the outer sheath fibers, before spinning. This causes one end of each individual fiber in the short fibers 50 to detach from the fiber sliver and be in a "raised" state. The filaments 60, which serve as the core yarn, are then discretely spun in a discrete zone 22. They are then mixed in a bundling tube 41, causing the "raised" ends of the short fibers to insert between the multiple filaments 60. Finally, the yarn is spun by air jet vortex spinning through the spinning unit 40 to form core-spun yarn 70. This process increases the cohesion between the outer sheath fibers and the core fibers, thereby improving the wear resistance of the core-spun yarn 70.

[0061] A type of core-spun yarn produced using the aforementioned jet vortex spinning device for producing wear-resistant core-spun yarn exhibits high wear resistance.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. An air-jet vortex spinning device for producing abrasion-resistant core-spun yarn, characterized in that, include A fiber opening component (10) has a yarn channel (11) inside, and a fiber opening tube (12) is concentrically arranged in the yarn channel (11). A groove is opened on the inner wall of the fiber opening tube (12). Discrete component (20), the discrete component (20) has a yarn channel two (21) inside, the middle of the yarn channel two (21) is provided with a discrete area (22), the side wall of the discrete component (20) corresponding to the discrete area (22) is provided with an air chamber one (23), one side of the air chamber one (23) is provided with a jet hole one (231) that is connected to the discrete area (22), and the other side is provided with an air inlet pipe one (232) that is connected to the outside. The spinning part (40) has a yarn channel three (41) inside, and a bundle tube (42) is provided at the head of the yarn channel three (41); wherein, short fibers (50) pass through the fiber opening part (10) and are opened through the fiber opening tube (12), and long filaments (60) pass through the dispersing part (20) and are dispersed through the airflow ejected from the jet hole one (231). The short fibers (50) and long filaments (60) enter the bundle tube (42) and are mixed before being spun by the air jet vortex spinning of the spinning part (40) to form core-spun yarn (70). It also includes a premix (30), which includes a positioning part (31) and a force-applying part (32) arranged opposite each other in the horizontal direction. The positioning part (31) limits one side of the mixture of short fiber (50) and filament (60), and the force-applying part (32) applies force to the short fiber (50) so that the short fiber (50) is partially embedded in the interior of the filament (60). The positioning part (31) includes a wheel body one (311) and a wheel body two (312) that are longitudinally distributed and rotatably arranged. The force-applying part (32) includes a rotatably mounted cylinder (33). The first wheel (311), the second wheel (312), and the cylinder (33) are arranged in a triangular pattern. The cylinder (33) is provided with an air hole (331). Both ends of the cylinder (33) extend axially to form a first tube (332). The first tube (332) is rotatably fitted with a second tube (35) and connected by a mechanical seal (36). The cylinder (33) is provided with a cover plate (34) on the outside. The cover plate (34) is C-shaped. The end of the cylinder (33) opposite to the positioning part (31) is exposed.

2. The air-jet vortex spinning apparatus for producing abrasion-resistant core-spun yarn according to claim 1, characterized in that, The fiber opening tube (12) is located in the middle of the yarn path (11), and the tail of the yarn path (11) is provided with a cavity (13), and the cavity (13) is provided with a rotating guide wheel (14).

3. The air-jet vortex spinning apparatus for producing abrasion-resistant core-spun yarn according to claim 1, characterized in that, The discrete region (22) is provided with a separation plate (24) for the discrete auxiliary filaments (60), and the separation plate (24) is arranged opposite to the injection hole (231); The separation plate (24) has longitudinally distributed ridges (241) on the end face opposite to the injection hole (231).

4. The air-jet vortex spinning apparatus for producing abrasion-resistant core-spun yarn according to claim 3, characterized in that, The tail of the yarn path two (21) is provided with a cavity two (25), and the cavity two (25) is rotatably fitted with at least one set of shaping wheels (26), which clamp and transport the filaments (60) in a discrete state.

5. The air-jet vortex spinning apparatus for producing abrasion-resistant core-spun yarn according to claim 1, characterized in that, The side wall of the spinning piece (40) is provided with air chamber two (43) and air chamber three (45) in sequence from the head end to the tail end. Air chamber two (43) is provided with injection hole two (431) on one side opposite to yarn path three (41) and air inlet pipe two (432) communicating with the outside on the other side. Air chamber three (45) is provided with injection hole three (451) on one side opposite to yarn path three (41) and air inlet pipe three (452) communicating with the outside on the other side. The rotating airflows generated by the second (431) and the third (451) jets are in opposite directions, and the airflow velocity generated by the third (451) jets is greater than that generated by the second (431) jets.

6. The process of the air-jet vortex spinning apparatus for producing abrasion-resistant core-spun yarn according to any one of claims 1-5, characterized in that, Includes the following steps: S1. Fiber preparation: A. Short fiber (50) is introduced into yarn path one (11), and fiber opening tube (12) performs fiber opening operation on short fiber (50); B, the filament (60) is introduced into the yarn path two (21), and the airflow ejected from the jet hole one (231) performs discrete operation on the filament (60) in the discrete region (22); S2, Fiber mixing: Short fibers (50) after fiber opening operation and long filaments (60) after dispersion operation are introduced into yarn path three (41) and bundled and mixed through bundling tube (42); S3. Obtaining core-spun yarn: The spinning unit (40) performs jet vortex spinning on the short fibers (50) and filaments (60) that have been bundled and mixed to form core-spun yarn.

7. A core-spun yarn produced using the jet vortex spinning apparatus for producing abrasion-resistant core-spun yarn as described in any one of claims 1-5.

Images