Colored spun yarn stretching device

By designing a yarn stretching device, the friction is reduced by using a rotating stretching block and a limiting groove. Combined with an electrostatic eliminator and a tension sensor, the problems of static electricity and shrinkage in the stretching process of yarn are solved, thereby improving production efficiency and product quality.

CN223974299UActive Publication Date: 2026-03-06YANCHENG KAIRUI TEXTILE MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Colored yarn is prone to shrinkage after high-temperature and high-pressure dyeing, resulting in reduced length and toughness. Furthermore, static electricity during the stretching process leads to frequent accidents such as yarn breakage, fly waste, and yarn entanglement, affecting production efficiency and quality.

Method used

A yarn stretching device was designed, comprising a base plate, a stretching assembly, an electrostatic eliminator, and a guide roller. Friction is reduced by multiple sets of rotating stretching blocks and limiting grooves. Combined with the electrostatic eliminator and tension sensor, the yarn tension is monitored and controlled in real time, and the stretching ratio is adjusted.

Benefits of technology

It effectively reduces static electricity in the yarn during the stretching process, prevents misalignment and breakage, improves production efficiency and product quality, and achieves fine and smooth yarn that meets yarn specification requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a colored spun yarn stretching device which comprises a bottom plate, a stretching assembly and a static electricity eliminator, an electric cylinder and a sliding rail are installed on the bottom plate, a sliding table is arranged on the sliding rail in a sliding mode, the stretching assembly comprises a main shaft, one end of the main shaft is connected with the sliding table through a tension sensor, and the other end of the main shaft is connected with the static electricity eliminator. A plurality of sets of connecting plates are arranged on the main shaft, a stretching block is rotationally arranged between every two adjacent sets of connecting plates, the static electricity eliminator is located on one side of the stretching assembly, a first guide roller and a second guide roller are arranged on the two sides of the bottom plate correspondingly, and a limiting groove is formed in each stretching block. The multiple sets of stretching blocks can rotate relative to the connecting plate, in the stretching process, friction between the stretching blocks and yarn is reduced, then static electricity is reduced, the limiting grooves in the stretching blocks are used for limiting the yarn and preventing the yarn from deviating in the stretching process, and the static electricity eliminator is used for eliminating static electricity generated by friction of the yarn.
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Description

Technical Field

[0001] This utility model relates to the field of colored yarn stretching technology, specifically a colored yarn stretching device. Background Technology

[0002] Colored yarn, also known as spun yarn, involves first dyeing fibers to a specific color, then thoroughly mixing two or more different colored fibers and spinning them into yarn with a unique blended effect. Colored yarn achieves a subtle, three-dimensional effect and texture that cannot be achieved with undyed raw yarn. It is also pollution-free to use and allows for maximum control over color differences. Therefore, colored yarn, with its soft, fashionable colors and ability to handle small-batch, multi-variety production, is increasingly used in mid-to-high-end apparel products. The colored yarn manufacturing process generally includes: raw material selection, dyeing, drying, grading, carding, stretching, and twisting.

[0003] The dyeing of colored yarn is carried out in a high-temperature and high-pressure environment. After dyeing, the colored yarn is prone to shrinkage due to the high temperature and pressure. If it is not stretched, its length and toughness will be reduced, affecting the sewing effect. After combing, a stretching process is carried out to make the yarn finer and smoother, achieving the required yarn specifications. During the stretching process, a lot of static electricity will be generated between the machine and the yarn due to friction. Excessive static electricity can cause textile production to be unable to proceed normally, and accidents such as yarn breakage, fly waste, and yarn entanglement, which reduce production efficiency and product quality, will also occur. Utility Model Content

[0004] The purpose of this invention is to provide a yarn stretching device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a yarn stretching device, comprising a base plate, a stretching assembly, and an electrostatic eliminator. An electric cylinder and a slide rail are mounted on the base plate. A slide table is slidably mounted on the slide rail. The stretching assembly includes a main shaft, one end of which is connected to the slide table via a tension sensor. Multiple sets of connecting plates are mounted on the main shaft, and a stretching block is rotatably mounted between adjacent sets of connecting plates. The electrostatic eliminator is located on one side of the stretching assembly. A first guide roller and a second guide roller are respectively mounted on both sides of the base plate. A limit groove is formed on the stretching block.

[0006] The tension block has connecting shafts welded and fixed at both ends, and the connecting shafts of the tension block are rotatably connected to the connecting plate.

[0007] One end of the electric cylinder push rod is fixedly connected to the slide table, and the slide table is slidably connected to the slide rail.

[0008] The first guide roller is connected to the base plate via a first side plate.

[0009] The first side plate is rotatably connected to the first guide roller.

[0010] The second guide roller is connected to the base plate via a second side plate.

[0011] The second side plate is rotatably connected to the second guide roller.

[0012] The first guide roller is located on one side of the stretching assembly, and the second guide roller is located on the other side of the stretching assembly.

[0013] The static eliminator is fixedly connected to the base plate via a vertical plate.

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

[0015] 1. All sets of stretching blocks of this utility model can rotate relative to the connecting plate. During the stretching process, the friction between the stretching blocks and the yarn is reduced, thereby reducing static electricity. The limiting groove on the stretching block is used to limit the yarn and prevent the yarn from running off-center during the stretching process. The static eliminator is used to eliminate the static electricity generated by the yarn due to friction and avoid phenomena such as yarn breakage, flyaways, and yarn entanglement during the stretching process.

[0016] 2. This utility model adjusts the stretching point position by controlling the extension and retraction stroke of the electric cylinder, thereby adjusting the stretching ratio of the colored yarn, which is convenient.

[0017] 3. The tension sensor of this utility model monitors the tension of the yarn in real time during the stretching process. When used in conjunction with an electric cylinder, it controls the yarn tension within a suitable range, thus preventing the yarn from breaking due to excessive tension. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one side view of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure from another side view of the present invention;

[0020] Figure 3 This is a schematic diagram illustrating the use of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the tension block of this utility model.

[0022] In the diagram: 1. Base plate; 2. Slide rail; 3. Slide table; 4. Tensioning assembly; 5. Tension sensor; 6. Electric cylinder; 7. Vertical plate; 8. Static eliminator; 11. First side plate; 12. First guide roller; 13. Second side plate; 14. Second guide roller; 41. Main shaft; 42. Connecting plate; 43. Tensioning block; 431. Limiting groove; 432. Connecting shaft. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a colored yarn stretching device, including a base plate 1, a stretching component 4 and an electrostatic eliminator 8. An electric cylinder 6 and a slide rail 2 are installed on the base plate 1. A slide table 3 is slidably arranged on the slide rail 2. The stretching component 4 includes a main shaft 41. One end of the main shaft 41 is connected to the slide table 3 through a tension sensor 5. Multiple sets of connecting plates 42 are arranged on the main shaft 41. A stretching block 43 is rotatably arranged between two adjacent sets of connecting plates 42. The electrostatic eliminator 8 is located on one side of the stretching component 4. A first guide roller 12 and a second guide roller 14 are respectively arranged on both sides of the base plate 1. A limit groove 431 is opened on the stretching block 43.

[0025] When stretching colored yarn, such as Figure 3 As shown, the yarn first passes over the first guide roller 12, then over the stretching block 43 of the stretching assembly 4, and finally over the second guide roller 14. When the electric cylinder 6 is working, it can drive the slide table 3 at one end to slide along the slide rail 2. The slide table 3 drives the stretching assembly 4 at its upper end to slide synchronously along the slide rail 2. The position of the stretching assembly 4 can be flexibly adjusted by controlling the extension and retraction stroke of the electric cylinder 6. That is, the position of multiple stretching blocks 43 can be flexibly adjusted by controlling the extension and retraction stroke of the electric cylinder 6. The stretching point can be adjusted by adjusting the position of the stretching blocks 43. The farther the stretching point is from the first guide roller 12 and the second guide roller 14, the greater the stretching ratio. Conversely, the closer the stretching point is to the first guide roller 12 and the second guide roller 14, the smaller the stretching ratio. The stretching point position can be adjusted by controlling the extension and retraction stroke of the electric cylinder 6, thereby realizing the adjustment of the stretching ratio of the colored yarn.

[0026] Tension sensor 5 monitors the tension of the yarn in real time during the stretching process. When used in conjunction with electric cylinder 6, it controls the yarn tension within a suitable range to prevent yarn breakage due to excessive tension.

[0027] Multiple sets of stretching blocks 43 can rotate relative to the connecting plate 42. During the stretching process, the friction between the stretching blocks 43 and the yarn is reduced, thereby reducing static electricity. The limiting groove 431 on the stretching block 43 is used to limit the yarn and prevent the yarn from running off-center during the stretching process. The static eliminator 8 is used to eliminate the static electricity generated by the yarn due to friction and avoid phenomena such as yarn breakage, flyaways, and yarn entanglement during the stretching process.

[0028] The stretching block 43 has a connecting shaft 432 welded to both ends. The connecting shaft 432 of the stretching block 43 is rotatably connected to the connecting plate 42. Multiple sets of stretching blocks 43 can rotate relative to the connecting plate 42. During the stretching process, the friction between the stretching block 43 and the yarn is reduced, thereby reducing static electricity.

[0029] One end of the push rod of the electric cylinder 6 is fixedly connected to the slide table 3, and the slide table 3 is slidably connected to the slide rail 2. The slide table 3 can slide along the slide rail 2 under the drive of the electric cylinder 6.

[0030] The first guide roller 12 is connected to the base plate 1 via the first side plate 11.

[0031] The first side plate 11 is rotatably connected to the first guide roller 12. The first guide roller 12 guides the yarn and can rotate relative to the first side plate 11, thereby reducing the friction between the roller and the yarn and reducing static electricity.

[0032] The second guide roller 14 is connected to the base plate 1 via the second side plate 13.

[0033] The second side plate 13 is rotatably connected to the second guide roller 14. The second guide roller 14 guides the yarn and can rotate relative to the second side plate 13, thereby reducing the friction between the roller and the yarn and reducing static electricity.

[0034] The first guide roller 12 is located on one side of the stretching assembly 4, and the second guide roller 14 is located on the other side of the stretching assembly 4. The yarn passes around the first guide roller 12, the stretching block 43 and the second guide roller 14 in sequence.

[0035] The static eliminator 8 is fixedly connected to the base plate 1 via the upright plate 7, making it easy to install and remove the static eliminator 8.

[0036] Working principle: When using it, such as Figure 3As shown, the yarn first passes over the first guide roller 12, then over the stretching block 43 of the stretching assembly 4, and finally over the second guide roller 14. According to the required stretching ratio of the yarn, the position of the stretching point is adjusted by controlling the extension and retraction stroke of the electric cylinder 6, thereby realizing the corresponding adjustment of the stretching ratio of the colored yarn. During the stretching process, the limiting groove 431 on the stretching block 43 limits the yarn to prevent the yarn from deviating during the stretching process. The multiple sets of stretching blocks 43 with rotation reduce the friction between the stretching block 43 and the yarn, thereby reducing static electricity. The static electricity generated by the friction of the yarn is eliminated by the static eliminator 8. The tension sensor 5 monitors the tension of the yarn in real time during the stretching process. In conjunction with the electric cylinder 6, the yarn tension is controlled within a suitable range to avoid yarn breakage due to excessive tension.

[0037] 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 yarn color drawing device comprising a base plate (1), a drawing assembly (4) and an electrostatic eliminator (8), characterized in that: The bottom plate (1) is provided with an electric cylinder (6) and a slide rail (2), the slide rail (2) is provided with a sliding table (3) which is slidably arranged on the slide rail (2), the stretching assembly (4) comprises a main shaft (41), one end of the main shaft (41) is connected with the sliding table (3) through a tension sensor (5), a plurality of groups of connecting plates (42) are arranged on the main shaft (41), a stretching block (43) is rotatably arranged between two adjacent groups of the connecting plates (42), the electrostatic eliminator (8) is located on one side of the stretching assembly (4), the bottom plate (1) is provided with a first guide roller (12) and a second guide roller (14) on both sides respectively, and a limiting groove (431) is formed in the stretching block (43).

2. A yarn color drawing device according to claim 1, wherein: Both ends of the stretching block (43) are welded with a connecting shaft (432), and the connecting shaft (432) of the stretching block (43) is rotatably connected with the connecting plate (42).

3. A yarn color drawing device as claimed in claim 1, wherein: One end of the push rod of the electric cylinder (6) is fixedly connected with the sliding table (3), and the sliding table (3) is slidably connected with the slide rail (2).

4. A yarn color drawing device as claimed in claim 1, wherein: The first guide roller (12) is connected with the bottom plate (1) through the first side plate (11).

5. A yarn color drawing device as claimed in claim 4, characterized in that: The first side plate (11) is rotatably connected with the first guide roller (12).

6. A yarn color drawing device as claimed in claim 1, wherein: The second guide roller (14) is connected with the bottom plate (1) through the second side plate (13).

7. A yarn color drawing device as claimed in claim 6, characterized in that: The second side plate (13) is rotatably connected with the second guide roller (14).

8. A yarn color drawing device as claimed in claim 1, wherein: The first guide roller (12) is located on one side of the stretching assembly (4), and the second guide roller (14) is located on the other side of the stretching assembly (4).

9. A yarn color drawing device as claimed in claim 1, wherein: The electrostatic eliminator (8) is fixedly connected with the bottom plate (1) through the vertical plate (7).