A large circular knitting machine and a single-sided pile fabric processing process

Abstract

The application discloses a large circular knitting machine and a single-sided pile fabric processing technology, which comprises a machine body and a winding mechanism arranged in the machine body, the machine body is a ring cavity structure, a ring-shaped outer ring knitting mechanism is arranged at the top of the machine body, an inner ring knitting mechanism is arranged in the inner ring knitting mechanism, the inner ring knitting mechanism is installed through a gantry component, the outer ring knitting mechanism and the inner ring knitting mechanism are arranged in a concentric circle structure, and a ring gap is left between the two, the gap is used for downward conveying of the knitted fabric and storage of the knitted fabric by the winding mechanism; an inner layer yarn feeding mechanism and an outer layer yarn feeding mechanism are arranged on the gantry component, the outer layer yarn feeding mechanism is used for matching yarn conveying to the knitting needle of the outer ring knitting mechanism, and the inner layer yarn feeding mechanism is used for matching yarn conveying to the knitting needle of the inner ring knitting mechanism.

Description

Technical Field

[0001] This invention belongs to the field of intelligent textile technology, and specifically relates to a large circular knitting machine and a single-sided fleece fabric processing technology. Background Technology

[0002] Circular knitting machines, also known as circular weft knitting machines (or circular weft knitting machines), have seen rapid development due to their numerous loop-forming systems (commonly referred to as yarn feed paths or loop formation paths, or simply paths), high speed, high output, rapid pattern changes, good fabric quality, fewer processing steps, and strong product adaptability.

[0003] With the development of the textile industry and the advancement of technology, the demand for improving fabric quality and production efficiency is increasing. Existing circular knitting machines use reciprocating knitting needles arranged in a ring for knitting operations, which is not flexible enough when dealing with complex knitting patterns and multi-yarn mixed knitting. Summary of the Invention

[0004] The purpose of this invention is to provide a circular knitting machine and a processing technology for single-sided fleece fabric, so as to improve the weaving flexibility of the circular knitting machine when handling complex fabrics.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: A circular knitting machine includes a machine body and a winding mechanism arranged inside the machine body. The main body of the machine body has an annular cavity structure. An annular outer knitting mechanism is arranged at the top of the machine body, and an inner knitting mechanism is arranged inside the outer knitting mechanism. The inner knitting mechanism is installed through a gantry component. The outer knitting mechanism and the inner knitting mechanism are arranged in a concentric circle structure with an annular gap between them. This gap is used to convey the woven fabric downwards and to be stored by the winding mechanism. An inner yarn feeding mechanism and an outer yarn feeding mechanism are arranged on the gantry component. The outer yarn feeding mechanism is used to feed the yarn to the knitting needles of the outer knitting mechanism, and the inner yarn feeding mechanism is used to feed the yarn to the knitting needles of the inner knitting mechanism.

[0006] Furthermore, both the inner and outer wire feeding mechanisms are circular ring structures, with the inner wire feeding mechanism arranged on the outer ring of the outer wire feeding mechanism and positioned below it.

[0007] Furthermore, the inner knitting mechanism includes a needle guide frame and a needle plate, with the plurality of knitting needles arranged in a central array at the needle guide frame, and the front ends of the knitting needles arranged at an angle outward.

[0008] Furthermore, the knitting needles of the inner knitting mechanism are arranged at a 45-degree angle, and the hooks of the knitting needles are arranged with downward openings.

[0009] Furthermore, the needle plate of the inner knitting mechanism is a beveled disc structure with a groove arranged around its outer edge, and the shank of the knitting needle is embedded in the groove.

[0010] Furthermore, the inner yarn feeding mechanism has an automatic yarn changing function.

[0011] Furthermore, an inner ring motor is arranged on the gantry component to drive the needle plate of the inner ring knitting mechanism to rotate. Hall sensors are arranged at both the needle plate of the inner ring knitting mechanism and the needle plate of the outer ring knitting mechanism to ensure that the two needle plates are in a synchronous rotation working state.

[0012] A single-sided fleece fabric processing technology, applied to the aforementioned circular knitting machine, includes: The elastic fiber and modal fiber are blended to make yarn, in which modal fiber accounts for 60% and elastic fiber accounts for 40%. The yarn is treated with empty wrapping, with the spacing between empty wrappings maintained at 1-2.5 mm, to produce finished yarn; The finished yarn is placed in the inner feeding mechanism of the circular knitting machine; At the outer knitting mechanism, bulked acrylic yarn is used to knit the fabric body. During the knitting process, the knitting needles of the inner knitting mechanism simultaneously and obliquely pass through the fabric body and pull back the finished yarn to perform the knitting operation, and make the finished yarn and bulked acrylic yarn blend together and knit, and make the finished yarn protrude at least 1 mm from the surface in the inner layer of the fabric body to build an oblique pile structure. The above weaving operations are performed continuously, and the processing of the single-sided fleece fabric is completed under the synchronous winding operation of the winding mechanism.

[0013] Furthermore, when the finished yarn is fed at the inner layer feeding mechanism, the empty portion of the yarn is fed to the knitting needle for engagement, and the finished yarn protrudes into an empty structure at the inner layer of the fabric body.

[0014] Compared with existing technologies, this solution has the following advantages: This solution is a circular knitting machine that incorporates an inner knitting component within the traditional circular knitting section. This allows for the simultaneous knitting of another set of functional yarns. The inner knitting component of this solution penetrates the fabric obliquely outward and obtains the corresponding finished yarn from the inner layer feeding mechanism. This allows for the addition and integration of finished yarns into the fabric, achieving special functionalization of the fabric. This solution implements a simultaneous knitting operation, which does not interfere with the original fabric knitting operation or reduce knitting efficiency while knitting and integrating the finished yarns. By functionalizing the finished yarn, it is possible to integrate different functions or feel into the fabric, such as the single-sided pile effect of this solution. At the same time, this solution uses a 45-degree inclined knitting needle operation, which can make the pile surface produce a soft, inclined feel and a heat-insulating effect. This solution describes a single-sided fleece fabric processing technology. By using a blend of elastic fibers and modal fibers to create a yarn, and then performing a hollow-wrapping process on the yarn, the finished yarn achieves a specific skin-friendly and soft feel. During the processing, a beveled piercing technique is used. Furthermore, because the length and stroke of the knitting needles can be adjusted accordingly, the outward extension length of the finished yarn in the fabric can be controlled, thereby enabling the knitting of various functional single-sided fleece fabrics. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the large circular kiln in a preferred embodiment.

[0016] Figure 2 This is a schematic diagram of the internal winding mechanism of a large circular knitting machine.

[0017] Figure 3 This is a schematic diagram of the top wire feeding structure of a large circular mill.

[0018] Figure 4 This is a schematic diagram of the weaving mechanism layout for a large circular knitting machine.

[0019] Figure 5 This is a schematic diagram of a partial weaving operation in a woven structure.

[0020] Figure 6 This is a schematic diagram illustrating another operational state of the knitting mechanism's partial knitting.

[0021] Figure 7 A schematic diagram of the structure of fabric weaving.

[0022] Figure 8 This is a simplified diagram showing the details of the finished single-sided fleece fabric product according to this design. Detailed Implementation

[0023] refer to Figures 1 to 4 A circular knitting machine includes a machine body 1 and a winding mechanism 11 arranged inside the machine body 1. The main body 1 has an annular cavity structure. A control unit, power supply and power components are arranged on the side wall of the machine body 1 for controlling the operation of the equipment. An annular outer knitting mechanism 21 is arranged on the top of the machine body 1. An inner knitting mechanism 22 is arranged inside the outer knitting mechanism 21. The inner knitting mechanism 22 is suspended by a gantry component 12. The outer knitting mechanism 21 and the inner knitting mechanism 22 are arranged in a concentric circle structure with an annular gap between them. This gap is used to convey the woven fabric downwards and to be stored by the winding mechanism 11.

[0024] The winding mechanism 11 is located at the bottom of the machine body 1 and includes a V-shaped guide groove 13. A clamping and conveying component 14 is arranged below the guide groove 13, and a collecting roller 15 is arranged on the side of the clamping and conveying component. The guide groove 13, the clamping and conveying component 14 and the collecting roller 15 are connected by a winding motor 16 at the bottom of the frame and rotate accordingly under the synchronous operation of the winding motor 16, thereby realizing the winding of the fabric and ensuring that the fabric maintains appropriate tension during the winding operation, making the fabric more stable and reliable during the weaving operation.

[0025] An inner yarn feeding mechanism 23 and an outer yarn feeding mechanism 24 are arranged on the gantry component 12. The outer yarn feeding mechanism 24 is used to feed yarn to the knitting needles of the outer knitting mechanism 21, and the inner yarn feeding mechanism 23 is used to feed yarn to the knitting needles of the inner knitting mechanism 22. The inner yarn feeding mechanism 23 and the outer yarn feeding mechanism 24 can feed different types of yarn simultaneously, increasing the diversity of fabrics. By precisely controlling the yarn tension, the stability of the yarn before entering the knitting mechanism is ensured. The inner yarn feeding mechanism 23 can cooperate with the outer yarn feeding mechanism 24 to provide additional yarn input, support the knitting of complex patterns, and also handle thicker or finer yarns or yarns with complex structural combinations.

[0026] Both the inner yarn feeding mechanism 23 and the outer yarn feeding mechanism 24 are circular ring structures, externally connected to a yarn frame and a yarn selection device. They can transport and select yarn according to set weaving requirements and programs, and connect the beginning and end yarns when changing yarns. Since the inner ring weaving mechanism 22 weaves at an oblique angle, the inner yarn feeding mechanism 23 is arranged on the outer ring of the outer yarn feeding mechanism 24 and below it, achieving stable and non-interfering yarn feeding operation.

[0027] refer to Figure 5 Figure 6 Figure 7 The outer knitting mechanism 21 is used to knit the main body of the fabric. It is similar in structure to a traditional circular knitting machine, including a ring-shaped needle plate and multiple knitting needles arranged on the needle plate. Under the control of the needle plate, the knitting needles perform orderly up-and-down knitting operations. Figure 7 The image shows a typical weaving operation from left to right.

[0028] The main body of the inner knitting mechanism 22 is installed on the gantry component 12 by means of structural components and an inner knitting motor. It includes a needle guide frame 23 and a needle plate 24. Hall sensors are arranged on both the needle plate 24 of the inner knitting mechanism and the needle plate of the outer knitting mechanism 21 to ensure that the two needle plates are in a synchronous rotation working state. Multiple knitting needles 25 corresponding to the outer knitting mechanism are arranged on the needle plate 24. They are arranged in a central array on the needle guide frame 24, and the knitting needles 24 are arranged at a 45-degree angle. The angle is controlled by the opening direction of the needle guide frame 23, and the knitting needles 25 can perform translational operation in the direction of the 45-degree angle. The knitting needles 25 pass through the knitting edge area of ​​the outer knitting mechanism 21 at the front end of the stroke, and receive the yarn feeding operation of the inner layer yarn feeding mechanism 23 on its outside, so that the fabrics are interwoven and knitted.

[0029] To ensure stable knitting operation, the hook of the knitting needle 25 is arranged with its opening facing downwards. Simultaneously, the needle plate 23 of the inner knitting mechanism has a beveled disc structure with a groove arranged around its outer edge. The shank of the rear end of the knitting needle 25 is embedded in this groove. Figure 5 and Figure 6 Represent Figure 7 The operating status of the first and ninth knitting needles from left to right.

[0030] refer to Figure 8 This solution also includes a single-sided fleece fabric processing technology, applied to the aforementioned circular knitting machine, including: The elastic fiber and modal fiber are blended to make yarn, in which modal fiber accounts for 60% and elastic fiber accounts for 40%. The yarn undergoes a hollow-filling process, with the spacing between the hollow fillers maintained at 1-2.5 mm, to produce finished yarn. During the hollow-filling process, the yarn is subjected to orderly and spaced compressed air impact treatment, causing the yarn at the impacted points to spread out in a spherical shape, which can improve the smoothness and fluffiness of the yarn. The finished yarn is placed in the inner feeding mechanism of the circular knitting machine; At the outer knitting mechanism, bulked acrylic yarn is used to knit the fabric body. During the knitting process, the knitting needles of the inner knitting mechanism simultaneously and obliquely penetrate the fabric body and pull back the finished yarn for knitting operations. This allows the finished yarn and the bulked acrylic yarn to be fused together, and the finished yarn protrudes at least 1 mm from the surface in the inner layer of the fabric body, constructing an oblique pile structure. Figure 8 In the diagram, black lines represent the fabric body woven from bulky acrylic yarn, while red lines represent the oblique pile structure woven from the finished yarn. The above weaving operations are performed continuously, and the processing of the single-sided fleece fabric is completed under the synchronous winding operation of the winding mechanism.

[0031] In some embodiments, when the finished yarn is fed at the inner layer feeding mechanism, the empty portion of the yarn is fed to the knitting needle for engagement, and the finished yarn protrudes into the inner layer of the fabric body as an empty package structure.

[0032] In summary, this solution is a circular knitting machine that incorporates an inner knitting component within the traditional circular knitting section. This allows for the simultaneous knitting of another set of functional yarns. The inner knitting component of this solution penetrates the fabric obliquely outward and obtains the corresponding finished yarn from the inner layer feeding mechanism. This allows for the addition and integration of finished yarns into the fabric, achieving the fabric's special functionality. This solution implements a simultaneous knitting operation, which does not interfere with the original fabric knitting operation or reduce knitting efficiency while knitting and integrating the finished yarns. By functionalizing the finished yarn, it is possible to integrate different functions or feel into the fabric, such as the single-sided pile effect of this solution. At the same time, this solution uses a 45-degree inclined knitting needle operation, which can make the pile surface produce a soft, inclined feel and a heat-insulating effect. This solution describes a single-sided fleece fabric processing technology. By using a blend of elastic fibers and modal fibers to create a yarn, and then performing a hollow-wrapping process on the yarn, the finished yarn achieves a specific skin-friendly and soft feel. During the processing, a beveled piercing technique is used. Furthermore, because the length and stroke of the knitting needles can be adjusted accordingly, the outward extension length of the finished yarn in the fabric can be controlled, thereby enabling the knitting of various functional single-sided fleece fabrics.

Claims

1. A single-sided fleece fabric processing technology, implemented by a circular knitting machine, the circular knitting machine comprising a machine body and a winding mechanism arranged inside the machine body, the main body of the machine body having an annular cavity structure, an annular outer knitting mechanism arranged at the top of the machine body, an inner knitting mechanism arranged inside the outer knitting mechanism, the inner knitting mechanism being installed via a gantry component, the outer knitting mechanism and the inner knitting mechanism being arranged in a concentric circular structure with an annular gap between them, the gap being used to convey the woven fabric downwards and to be stored by the winding mechanism; an inner layer feeding mechanism and an outer layer feeding mechanism are arranged on the gantry component, the outer layer feeding mechanism being used to feed yarn to the knitting needles of the outer knitting mechanism, and the inner layer feeding mechanism being used to feed yarn to the knitting needles of the inner knitting mechanism; Its features are: The single-sided fleece fabric processing technology includes: blending elastic fibers and modal fibers to make yarn, wherein modal fibers account for 60% and elastic fibers account for 40%; performing a loose-loop treatment on the yarn, with the loose-loop spacing maintained at 1-2.5 mm, to produce finished yarn; placing the finished yarn on the inner layer feeding mechanism of a circular knitting machine; using bulked acrylic yarn to knit the fabric body at the outer knitting mechanism, during the knitting process, the knitting needles of the inner knitting mechanism simultaneously and obliquely penetrate the fabric body and pull back the finished yarn to perform the knitting operation, and making the finished yarn and bulked acrylic yarn merge and knit together, and making the finished yarn protrude at least 1 mm from the surface of the inner layer of the fabric body to construct an oblique fleece structure; continuously performing the above knitting operation, and completing the processing operation of the single-sided fleece fabric under the synchronous winding operation of the winding mechanism.

2. The processing technology for a single-sided fleece fabric according to claim 1, characterized in that: When the finished yarn is fed at the inner layer feeding mechanism, the empty portion of the yarn is fed to the knitting needles for engagement, and the finished yarn protrudes into the inner layer of the fabric body as an empty package structure.

3. The processing technology for a single-sided fleece fabric according to claim 1, characterized in that: Both the inner and outer wire feeding mechanisms are circular ring structures, with the inner wire feeding mechanism arranged on the outer ring of the outer wire feeding mechanism and located below it.

4. The processing technology for a single-sided fleece fabric according to claim 1, characterized in that: The inner knitting mechanism includes a needle guide frame and a needle plate, with multiple knitting needles arranged in a central array at the needle guide frame, and the front ends of the knitting needles arranged at an angle to the outward; the outer knitting mechanism includes a ring-shaped needle plate and multiple knitting needles arranged on the needle plate.

5. The processing technology for a single-sided fleece fabric according to claim 4, characterized in that: The knitting needles of the inner knitting mechanism are arranged at a 45-degree angle, and the hooks of the knitting needles are arranged with downward openings.

6. The single-sided fleece fabric processing technology according to claim 4, characterized in that: The needle plate of the inner knitting mechanism is a beveled disc structure with a groove arranged around its outer edge, and the shank of the knitting needle is embedded in the groove.

7. The processing technology for a single-sided fleece fabric according to claim 1, characterized in that: The inner yarn feeding mechanism has an automatic yarn changing function.

8. The single-sided fleece fabric processing technology according to claim 4, characterized in that: An inner ring motor is arranged on the gantry component. The inner ring motor is used to drive the needle plate of the inner ring knitting mechanism to rotate. Hall sensors are arranged at both the needle plate of the inner ring knitting mechanism and the needle plate of the outer ring knitting mechanism to ensure that the two needle plates are in a synchronous rotation working state.

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