An intermittent metal core spun yarn, ring spinning system and method

Abstract

This invention relates to a discontinuous metal core-spun yarn, a ring spinning system, and a method. The yarn comprises a fine yarn surface layer and metal wires, with the metal wires intermittently disposed within the fine yarn surface layer, which is a fine yarn uniformly covering the metal wires. This invention incorporates a pneumatic shearing device along the metal wire's running track for cutting, ultimately resulting in a discontinuous distribution of the metal wires on the covering material, forming a discontinuous metal core-spun yarn. Unlike traditional metal core-spun yarn where the metal wires are continuous filaments, this invention offers greater design flexibility and softness, extending the lifespan of the finished product and providing broad advantages in specific fields such as daily life and military applications. Furthermore, a corresponding ring spinning system and method are designed to meet the preparation requirements of discontinuous metal core-spun yarn, enabling rapid and continuous cutting of the metal wires while accurately combining them with the fine yarn to form well-covered discontinuous metal core-spun yarn. This allows for better adaptation to assembly line operations and mass production, creating greater economic benefits for enterprises.

Description

Technical Field

[0001] This invention relates to the field of core-spun yarn processing technology, and in particular to an intermittent metal core-spun yarn, ring spinning system and method. Background Technology

[0002] Core-spun yarn, also known as composite yarn or covered yarn, is a new type of textile yarn consisting of an outer layer of fibers covering a core. It includes elastic yarn with spandex fiber as the core, metallic composite yarn with metal wire as the core, synthetic fiber filament yarn as the core, and imitation gold and silver yarn with a core wrapped in a gold or silver polyester fiber membrane. Core-spun yarn has seen rapid development in recent years and is increasingly widely used in various fields; its functional development has become a key focus of research and development in recent years.

[0003] To resist and shield against pollution from radiation, static electricity, and ultraviolet rays, ultra-fine metal wires (such as stainless steel wire and copper wire) are typically used as core wires to make core-spun yarn, with a shielding rate between 20-35dB, which can shield against most radiation hazards. However, the metal wires in traditional metal core-spun yarn are now complete long filaments, resulting in products with high hardness, easy breakage, and short service life. At the same time, their flexibility, softness, and comfort are poor, so further improvements are needed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a discontinuous metal core-spun yarn, a ring spinning system and method, in which the metal wires in the prepared metal core-spun yarn are discontinuously distributed, providing greater design flexibility and softness.

[0005] This invention is achieved through the following technical solution:

[0006] A discontinuous metal core-spun yarn includes a fine yarn surface layer and metal wires disposed within the fine yarn surface layer. The metal wires are discontinuously disposed within the fine yarn surface layer, and the fine yarn surface layer is a fine yarn uniformly covering the outside of the metal wires.

[0007] According to the above technical solution, preferably, the metal wires are distributed in the surface layer of the yarn at equal intervals.

[0008] Meanwhile, this patent discloses a ring spinning system for intermittent metal core-spun yarn, used to manufacture the aforementioned intermittent metal core-spun yarn, comprising:

[0009] The drafting zone is used to draft the sliver unwound from the roving tube into fine yarn and combine it with the cut metal wire;

[0010] The cutting zone is used to convey metal wires, which, after being cut, enter the drafting zone and merge with the yarn.

[0011] The take-up section is used to twist the yarn that has been combined with the metal wire into intermittent metal core-spun yarn and wind it onto the yarn tube.

[0012] According to the above technical solution, preferably, the drafting zone includes a rear roller, a rear slip roller, a middle roller, a middle slip roller, and a front roller and a front slip roller, which are arranged in front of the roving tube and the bundler, and the cut metal wires merge with the yarn at the front roller and the front slip roller.

[0013] According to the above technical solution, preferably, the cutting area includes a guide roller, a guide roller, a pneumatic shear, and a trumpet opening. The trumpet opening is located near the front roller and the front guide roller, and is used to draw the cut metal wire into the front roller and the front guide roller to merge with the yarn.

[0014] According to the above technical solution, preferably, the cutting area further includes a guide tube disposed between the guide roller, the guide roller and the pneumatic shear.

[0015] According to the above technical solution, preferably, the take-up area includes a ring-spun steel wire ring, a steel ring and a yarn tube. The yarn after being combined with the metal wire passes through the yarn guide hook and is introduced by the rotation of the ring-spun steel wire ring, twisted into intermittent metal core-spun yarn, and wound onto the yarn tube.

[0016] Furthermore, this patent also discloses a ring spinning method for discontinuous metal core-spun yarn, based on the aforementioned ring spinning system for discontinuous metal core-spun yarn, comprising the following steps:

[0017] S1. The sliver unwound from the roving tube is stretched and drawn thinner in the drafting zone to form a fine yarn;

[0018] S2. The metal wire enters the cutting area, is cut to a fixed length by the pneumatic shear, and then merges into the front roller, the front skin roller and the fine yarn.

[0019] S3. The yarn that has been combined with the metal wire passes through the take-up area, is twisted into a discontinuous metal core-spun yarn, and is wound onto the yarn tube.

[0020] According to the above technical solution, preferably, in step S2, the metal wire is stretched by the guide roller and the guide tube to improve the uniformity of the metal wire, and the metal wire can maintain linear movement along a predetermined path by passing through the guide tube.

[0021] The beneficial effects of this invention are:

[0022] The metal wires in the core-spun yarn of this invention are intermittently distributed in the yarn, which is different from the traditional metal core-spun yarn where the metal wires are whole filaments. This can provide greater design flexibility and softness, and improve the service life of the products. It has a wide range of advantages in specific fields such as daily life and military, and has high promotion value.

[0023] Meanwhile, a corresponding ring spinning system and method were designed to meet the requirements for the preparation of discontinuous metal core-spun yarn. This system enables rapid and continuous cutting of metal wires while allowing them to be accurately combined with fine yarns to form well-coated discontinuous metal core-spun yarn. This yarn is better suited for assembly line operations and mass production, creating greater economic benefits for enterprises. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] In the diagram: 1. Roving bobbin; 2. Bundler; 3. Back roller; 4. Back top roller; 5. Middle roller; 6. Middle top roller; 7. Ring; 8. Front roller; 9. Guide hook; 10. Front top roller; 11. Trumpet mouth; 12. Pneumatic cutter; 13. Guide tube; 14. Guide roller; 15. Guide roller; 16. Wire spool; 17. Ring-spun steel traveler; 18. Ring; 19. Fine yarn bobbin. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0027] In the description of the invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0028] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] Example 1: This invention discloses a discontinuous metal core-spun yarn, comprising a fine yarn surface layer and metal wires disposed within the fine yarn surface layer. The fine yarn surface layer is a fine yarn uniformly covering the metal wires, and the metal wires are intermittently disposed within the fine yarn surface layer. Preferably, the metal wires are distributed within the fine yarn surface layer at equal intervals. Unlike traditional metal core-spun yarns where the metal wires are continuous filaments, in this example, the metal wires in the core-spun yarn are discontinuously distributed on the covering material, forming a discontinuous metal core-spun yarn. Due to its unique physical properties and design flexibility, this yarn has wide applications in specific fields.

[0030] Example 2: As shown in the figure, this patent discloses a ring spinning system for intermittent metal core-spun yarn, used to manufacture the intermittent metal core-spun yarn in Example 1, comprising: a drafting zone for drafting the sliver unwound from the roving tube 1 into a fine yarn and merging it with the cut metal wire; a cutting zone for conveying the metal wire and, after cutting, entering the drafting zone to merge with the fine yarn; and a winding zone for twisting the fine yarn merged with the metal wire into intermittent metal core-spun yarn and winding it onto the roving tube 19.

[0031] The drafting zone includes a rear roller 3, a rear guide roller 4, a middle roller 5, a middle guide roller 6, and a front roller 8 and a front guide roller 10, all located in front of the roving tube 1 and the bundler 2. The cut metal wires converge with the yarn at the front roller 8 and the front guide roller 10. The rear drafting zone formed between the rear roller 3 and the rear guide roller 4, and the middle roller 5 and the middle guide roller 6, undertakes part of the total drafting, preparing for the front drafting zone. After drafting, the roving will be lengthened and thinned, but will still be thicker than the metal wire, allowing it to evenly cover the outside of the metal wire and tightly bond with it. After drafting, the yarn converges with the metal wire at the apron 7 of the front roller 8 and the front guide roller 10.

[0032] The cutting zone includes a guide roller 14, a guide roller 15, a guide tube 13, a pneumatic shear 12, and a bell mouth 11. The bell mouth 11 is located near the front roller 8 and the front guide roller 10, and is used to precisely merge the cut metal wires into the front roller 8 and the front guide roller 10 with the yarn, so that the metal wires are located in the middle of the core-spun yarn, forming well-covered discontinuous metal core-spun yarn. Specifically, the pneumatic shear 12, located between the guide tube 13 and the bell mouth 11, cuts the metal wires and controls the length of the fed metal wires, so that the metal wires merge with the drafted yarn in segments of a specific length. In this example, the pneumatic shear 12 is a small shear, which reduces the distance between the guide tube 13 and the bell mouth 11 to prevent bending of the metal wires during the cutting process, while realizing rapid and continuous cutting of the metal wires, achieving mass production of discontinuous metal core-spun yarn. In this example, a guide tube 13 is provided between the guide roller 14, the guide roller 15, and the pneumatic shear 12 to prevent the wire from bending, tangling, and wearing during feeding, ensuring that the wire maintains a straight line during feeding and reducing deviation and vibration. The guide roller 14 and guide roller 15 in this example guide the wire along a predetermined path, ensuring its accurate entry into the next processing area. Simultaneously, the drafting of the guide roller 15 improves the uniformity of the wire, creating conditions for the subsequent convergence of the wire and the yarn.

[0033] The take-up area includes a ring-spun steel wire traveler 17, a steel ring 18, and a yarn tube 19. The yarn, after being combined with the metal wire, passes through the yarn guide hook 9 and is introduced by the rotation of the ring-spun steel wire traveler 17. Since the winding speed of the bobbin is faster than that of the steel wire traveler, it is twisted into an intermittent metal core-spun yarn and wound onto the yarn tube 19.

[0034] Example 3: This patent also discloses a ring spinning method for intermittent metal core-spun yarn, based on the above-mentioned ring spinning system for intermittent metal core-spun yarn, including the following steps:

[0035] S1. The sliver unwound from the roving tube 1 is stretched and drawn thin in the drafting zone to form a fine yarn;

[0036] S2. The metal wire enters the cutting area and is cut to a fixed length by the pneumatic shear 12, and then merges into the front roller 8, the front skin roller 10 and the fine yarn.

[0037] S3. The yarn that has been combined with the metal wire passes through the take-up area, is twisted into a discontinuous metal core-spun yarn, and is wound onto the yarn tube 19.

[0038] Based on the above embodiments, the preferred working method of this application is as follows: the metal wire spool 16 releases the metal wire, which enters the cutting area through drafting. The pneumatic shear 12, which is set between the guide tube 13 and the bell mouth 11, cuts the metal wire and controls the length of the fed metal wire so that the metal wire merges with the drafted yarn in segments of a specific length. On the other side of the ring spinning machine, the roving is unwound and enters the drafting area through the bell mouth 11 type bundler 2 for drafting. It merges with the metal wire at the rubber apron 7 and is output from the front roller 8 through the yarn guide hook 9. It is then introduced by the rotation of the ring spinning steel wire ring 17. Since the winding speed of the bobbin is faster than that of the steel wire ring, it is finally spun into a discontinuous metal core-spun yarn and wound onto the yarn tube 19.

[0039] The metal wires in the core-spun yarn of this invention are intermittently distributed within the yarn, unlike traditional metal core-spun yarn where the metal wires are whole filaments. This provides greater design flexibility and softness, and improves the service life of the finished products. It has broad advantages in specific fields such as daily life and military applications, and has high promotional value. At the same time, a corresponding ring spinning system and method were designed to meet the preparation requirements of intermittent metal core-spun yarn. This allows for rapid and continuous cutting of the metal wires while ensuring accurate mixing with the fine yarn to form well-coated intermittent metal core-spun yarn. This makes it better suited for assembly line work and mass production, creating greater economic benefits for enterprises.

[0040] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A ring spinning system for intermittently cored metal covered yarns, characterized by, include: The drafting zone is used to draft the sliver unwound from the roving tube (1) into fine yarn and combine it with the cut metal wire; The cutting zone is used to convey metal wires, which, after being cut, enter the drafting zone and merge with the yarn. The take-up area is used to twist the yarn that has been combined with the metal wire into intermittent metal core-spun yarn and wind it onto the yarn tube (19). The cutting area includes a guide roller (14), a guide roller (15), a pneumatic cutter (12), and a bell mouth (11). The bell mouth (11) is located near the front roller (8) and the front guide roller (10) to allow the cut metal wire to be drawn into the front roller (8) and the front guide roller (10) and merged with the yarn, so that the metal wire can be located in the middle of the core-spun yarn. The cutting area also includes a guide tube (13) located between the guide roller (14), the guide roller (15), and the pneumatic cutter (12) to prevent the metal wire from bending, tangling, and wearing during feeding. The pneumatic cutter (12) located between the guide tube (13) and the bell mouth (11) is a small cutter to reduce the distance between the guide tube (13) and the bell mouth (11) to prevent bending of the metal wire during the cutting process. The intermittent metal core-spun yarn includes a fine yarn surface layer and metal wires disposed within the fine yarn surface layer. The metal wires are intermittently disposed within the fine yarn surface layer, and the fine yarn surface layer is a fine yarn uniformly covering the outside of the metal wires.

2. A ring spinning system for intermittently cored yarn according to claim 1, characterized in that The metal wires are distributed at equal intervals within the surface layer of the yarn.

3. A ring spinning system for intermittently cored yarn according to claim 1, wherein The drafting zone includes a rear roller (3), a rear slip roller (4), a middle roller (5), a middle slip roller (6), a front roller (8), and a front slip roller (10) located in front of the roving tube (1) and the bundler (2). The cut metal wires merge with the yarn at the front roller (8) and the front slip roller (10).

4. A ring spinning system for intermittently cored yarn according to claim 3, characterized in that The winding area includes a ring-spun steel wire traveler (17), a steel ring (18), and a yarn tube (19). The yarn, after being combined with the metal wire, passes through the yarn guide hook (9) and is introduced by the rotation of the ring-spun steel wire traveler (17), twisted into discontinuous metal core-spun yarn, and wound onto the yarn tube (19).

5. A method for ring spinning discontinuous metal core-spun yarn, based on the ring spinning system for discontinuous metal core-spun yarn as described in claim 4, characterized in that, Includes the following steps: S1. The sliver unwound from the roving tube (1) is stretched and drawn thin in the drafting zone to form a fine yarn; S2. The metal wire enters the cutting area and is cut to a fixed length by the pneumatic shear (12), and then merges into the front roller (8), the front skin roller (10) and the fine yarn; S3. The yarn that has been combined with the metal wire passes through the winding area, is twisted into a discontinuous metal core-spun yarn, and is wound onto the yarn tube (19).

6. The ring spinning method for intermittent metal core-spun yarn according to claim 5, characterized in that, In step S2, the metal wire is stretched by the guide roller (14) and guide roller (15) to improve the uniformity of the metal wire, and the metal wire is able to maintain a straight movement along a predetermined path by passing through the guide tube (13).

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