Woven structure and method for weaving a tricot sleeve

Abstract

This application provides a braiding structure and method for weaving a three-dimensional fabric sleeve. The braiding structure includes an outer ring, an inner ring, and an intermediate ring disposed between the two. The intermediate ring is fixedly disposed, and the outer ring and inner ring are rotatably disposed on both sides of the intermediate ring. The outer ring and inner ring are respectively provided with a plurality of radially aligned spindle slots along the circumferential direction. The spindle slots of the outer ring are defined as the first spindle slots, and the spindle slots of the inner ring are defined as the second spindle slots. The intermediate ring is provided with a third spindle slot along the circumferential direction. The third spindle slot is radially aligned with the first and second spindle slots. A fixed yarn spindle is disposed on the intermediate ring every other third spindle slot, and a braiding yarn spindle is disposed on the outer ring and inner ring every seven spindle slots. This configuration can form a clear and controllable yarn path between circumferential and radial motion, thereby achieving fuller path utilization within the limited equipment space, reducing the ineffective empty space caused by the increase in weaving size, and improving the overall utilization rate of the equipment.

Description

Technical Field

[0001] This application relates to the field of three-dimensional weaving technology, and in particular to a weaving structure and weaving method for weaving three-dimensional fabric sleeves. Background Technology

[0002] Triaxial fabric sleeves are a type of tubular fiber preform formed by multiple sets of yarns interlacing in space. They provide a continuous yarn structure in both the axial and radial directions and are widely used in composite material reinforcement. In existing technology, longitudinal and transverse three-dimensional circular knitting machines achieve continuous knitting of plain weave triaxial fabrics by using the relative rotation of the outer and inner rings to move the knitting spindles in both the circumferential and radial directions. This type of equipment has a mature structure and can meet the forming requirements of tubular triaxial fabrics to a certain extent.

[0003] However, in the aforementioned warp and weft weaving methods, due to limitations in yarn topology and spindle movement paths, existing methods are mainly applicable to three-dimensional fabric structures without filler yarns. As the weaving size increases, more empty space tends to form inside the loom, resulting in low equipment utilization. Furthermore, existing weaving methods are quite restrictive in their ability to introduce weft or filler yarns, leading to insufficient constraint on the internal structure of the fabric and making it difficult to obtain tubular three-dimensional fabrics with low porosity and relatively compact structures.

[0004] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Summary of the Invention

[0005] This application provides a braiding structure and method for weaving three-dimensional fabric sleeves to solve the problem that when the weaving size of existing three-dimensional fabric structures increases, a lot of empty space is easily formed inside the loom, resulting in low equipment utilization.

[0006] As one aspect of this application, this application provides a braided structure for braiding a three-dimensional fabric sleeve, comprising: Outer ring, inner ring, and intermediate ring between the two; The intermediate ring is configured to be fixed, and the outer ring and the inner ring are respectively rotatably disposed on both sides of the intermediate ring; The outer ring and the inner ring are respectively provided with a plurality of radially aligned spindle slots along the circumferential direction. The spindle slot of the outer ring is defined as the first spindle slot, and the spindle slot of the inner ring is defined as the second spindle slot. The intermediate ring is provided with a third spindle slot along the circumferential direction. The third spindle slot is radially aligned with the first spindle slot and the second spindle slot, and a fixed yarn spindle is provided on the intermediate ring every other third spindle slot.

[0007] Optionally, an outer ring braided yarn spindle is provided in the first spindle slot, and an inner ring braided yarn spindle is provided in the second spindle slot.

[0008] Optionally, the outer ring braided yarn spindle and the inner ring braided yarn spindle are configured to move radially within the corresponding spindle slots, and during the radial movement, they are respectively interchanged between the first spindle slot and the second spindle slot.

[0009] Optionally, along the circumferential direction of the intermediate ring, any four adjacent fixed yarn spindles, one outer ring braided yarn spindle, and one inner ring braided yarn spindle constitute a spindle group, and the spindle group is periodically repeated along the circumferential direction of the intermediate ring.

[0010] As another aspect of the embodiments of this application, the embodiments of this application provide a weaving method applied to the weaving structure described above, the method comprising: The outer ring and the inner ring are controlled to drive the braided yarn spindles located in the first spindle slot and the braided yarn spindles located in the second spindle slot to rotate in opposite directions along the circumferential direction. The braided yarn spindles in the first spindle slot and the braided yarn spindles in the second spindle slot are controlled to move radially respectively, so that the braided yarn spindles in the first spindle slot are moved to the second spindle slot, and the braided yarn spindles in the second spindle slot are moved to the first spindle slot. The outer ring and the inner ring are controlled to drive the braided yarn spindle in the first spindle slot after the transposition and the braided yarn spindle in the second spindle slot after the transposition to rotate in opposite directions along the circumference. The braided yarn spindles in the first spindle slot and the braided yarn spindles in the second spindle slot are controlled to move radially, so that they return to the first spindle slot and the second spindle slot before the swapping, respectively.

[0011] Optionally, in the step of controlling the outer ring and the inner ring to drive the braided yarn spindle in the first spindle slot and the braided yarn spindle in the second spindle slot after the transposition to rotate in opposite directions along the circumference, the opposite rotation of the outer ring and the inner ring causes the braided yarn spindle to move in the circumference to both sides of the position of the adjacent fixed yarn spindle.

[0012] Optionally, the first spindle slot and the second spindle slot are aligned in the radial direction, and the radial movement of the braided yarn spindle is carried out without changing this alignment relationship.

[0013] Optionally, the circumferential rotation and the radial movement are performed alternately in a predetermined sequence to form a weaving cycle.

[0014] Optionally, the weaving cycle is repeated along the axial direction, during which the yarn is drawn out and fixed on the mandrel to form a three-dimensional fabric sleeve.

[0015] The embodiments of this application employing the above-described technical solution may have the following advantages: This application provides a braiding structure and method for weaving a three-dimensional fabric sleeve. The braiding structure includes an outer ring, an inner ring, and an intermediate ring disposed between the two. The intermediate ring is fixedly disposed, and the outer ring and the inner ring are rotatably disposed on both sides of the intermediate ring. The outer ring and the inner ring are respectively provided with a plurality of radially aligned spindle slots along the circumferential direction. The spindle slots of the outer ring are defined as the first spindle slots, and the spindle slots of the inner ring are defined as the second spindle slots. The intermediate ring is provided with a third spindle slot along the circumferential direction. The third spindle slot is radially aligned with the first spindle slot and the second spindle slot. A fixed yarn spindle is disposed on the intermediate ring every other third spindle slot. With this configuration, the outer and inner rings rotate relative to each other on both sides of the middle ring. Combined with the radially aligned first, second, and third spindle slots, a clear and controllable yarn path can be formed between circular and radial motion. This allows for more efficient use of the path within the limited equipment space, reducing ineffective empty space caused by increased weaving dimensions and improving the overall utilization rate of the equipment. Simultaneously, by setting fixed spindles at intervals on the middle ring, a stable spatial constraint relationship is formed in the yarn during weaving, improving the problem of insufficient internal constraint in existing structures. This is beneficial for obtaining a more compact three-dimensional fabric sleeve with lower porosity. Attached Figure Description

[0016] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0017] Figure 1 A three-dimensional structural diagram of the braided structure fixed on the device according to an embodiment of this application; Figure 2 This is a schematic diagram of the planar structure of the braided structure provided in the embodiments of this application; Figure 3 for Figure 2 One of the state diagrams of a braided structure; Figure 4 for Figure 2 The second state diagram of the braided structure; Figure 5 for Figure 2 The third state diagram of the braided structure; Figure 6 for Figure 2 The fourth state diagram of the braided structure; Figure 7 This is a plan view of the three-dimensional fabric sleeve woven according to the braided structure of the embodiment of this application.

[0018] Explanation of reference numerals in the attached figures: 1-Outer ring; 2-Inner ring; 3-Middle ring; 4-Outer ring braided yarn spindle; 5-Inner ring braided yarn spindle; 6-Fixed yarn spindle. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. The application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0021] In this application, the term "numerical interval" (i.e., numerical range) refers to a range of values. Unless otherwise specified, the distribution of selectable values ​​within this numerical interval is considered continuous, and includes the two endpoints (i.e., the minimum and maximum values) of the interval, as well as every value between these endpoints. Unless otherwise specified, when a numerical interval refers only to integers within that interval, it includes the two endpoints of the range and every integer between them, effectively listing every integer. When multiple numerical ranges are provided to describe features or characteristics, these ranges can be merged. In other words, unless otherwise specified, the numerical ranges disclosed in this application should be understood to include any and all subranges included therein. The "numerical value" in this numerical interval can be any quantitative value, such as a number, percentage, or proportion. The term "numerical interval" can broadly include percentage intervals, proportion intervals, ratio intervals, and other quantitative intervals.

[0022] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. It should be understood that these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein.

[0023] The first aspect of this application discloses a braided structure for braiding a three-dimensional fabric sleeve, such as... Figure 1 As shown, the braided structure is at least partially fixed to a circular knitting machine, a type of machinery well known to those skilled in the art, and the main improvement of this application does not lie therein. Therefore, please refer to [the document for details]. Figure 2 The weaving structure of this embodiment includes an outer ring 1, an inner ring 2, and an intermediate ring 3 disposed between the outer ring 1 and the inner ring 2. The intermediate ring 3 is fixedly disposed, while the outer ring 1 and the inner ring 2 are rotatably disposed on both sides of the intermediate ring 3. By arranging the outer ring 1, inner ring 2, and intermediate ring 3 in layers, the spindles can undertake different movement or fixing functions on each ring during the weaving process. This allows for more yarn path selection while maintaining the basic principle of warp and weft weaving, which is beneficial for improving the utilization rate of the loom's internal space and avoiding a large amount of ineffective space when the weaving size increases.

[0024] Specifically, such as Figure 2 As shown, the outer ring 1 and the inner ring 2 are respectively provided with multiple radially aligned spindle slots along the circumferential direction. The spindle slots on the outer ring are defined as the first spindle slots, and the spindle slots on the inner ring are defined as the second spindle slots. The first spindle slot is provided with an outer ring weaving yarn spindle 4, and the second spindle slot is provided with an inner ring weaving yarn spindle 5. By arranging the outer ring weaving yarn spindle 4 and the inner ring weaving yarn spindle 5 respectively in the radially aligned slots, the two maintain a clear and controllable correspondence during radial movement and repositioning. This is beneficial for the stable formation of a regular three-dimensional interlacing structure and reduces the problem of insufficient internal constraint of the fabric caused by the chaotic intersection of spindle paths.

[0025] Furthermore, the outer ring braided yarn spindle 4 and the inner ring braided yarn spindle 5 are configured to move radially within their corresponding spindle slots, and to interchange positions between the first and second spindle slots during radial movement. By setting radially movable and interchangeable braided yarn spindles, a radially interlaced path is introduced while the yarn moves in the circumferential direction, thereby forming a more continuous and compact spatial interlacing relationship in the fabric structure. This helps to reduce the porosity of the formed sleeve and improve the structural density.

[0026] Specifically, the intermediate ring 3 is provided with multiple fixed spindles 6 and multiple third spindle slots along the circumferential direction. The third spindle slots are radially aligned with the first and second spindle slots, and a fixed spindle 6 is provided on the intermediate ring 3 every other third spindle slot. It can also be understood that the third spindle slots and fixed spindles 6 are arranged at intervals along the circumferential direction on the intermediate ring 3. By concentrating the fixed spindles 6 on the intermediate ring 3, the yarns involved in the formation maintain a relatively stable spatial position relationship during the weaving process. This avoids the problem of limited yarn paths and difficulty in effectively constraining the internal structure of the fabric in the existing structure, so that the formed tubular three-dimensional fabric has better support and constraint effects in both the radial and axial directions.

[0027] Furthermore, an outer ring weaving spindle 4 is installed on the outer ring 1 every seven first spindle slots, and an inner ring weaving spindle 5 is installed on the inner ring 2 every seven second spindle slots. Along the circumferential direction of the middle ring 3, any four adjacent fixed spindles 6, one outer ring weaving spindle 4, and one inner ring weaving spindle 5 form a spindle group. The spindle groups are periodically repeated along the circumferential direction of the middle ring. By grouping the fixed spindles 6 with the movable outer ring weaving spindles 4 and inner ring weaving spindles 5, each spindle group forms a relatively independent and repetitive weaving unit in the weaving cycle. This helps to improve the regularity and stability of the weaving process. At the same time, it is easy to adapt to three-dimensional fabric sleeves with different diameters or wall thicknesses by adjusting the number of spindle groups, thus improving the adaptability of the equipment.

[0028] It should be noted that, without changing the basic structural setup of the outer ring 1 and inner ring 2 rotating relative to each other, the radial displacement of the yarn spindles, and the fixed yarn spindles 6 on the intermediate ring 3, the intermediate ring 3 can also adopt a segmented structure or a detachable structure as needed to facilitate maintenance or replacement of some yarn spindles; at the same time, the specific shape of the spindle slot can also be changed from a straight slot to a T-shaped slot, a dovetail slot, or a roller guide slot, etc., as long as the radial guidance and displacement function of the spindle can be achieved, it can be regarded as an equivalent replacement of this solution.

[0029] A second aspect of this application also discloses a weaving method applied to the aforementioned weaving structure for forming a three-dimensional fabric sleeve. This method achieves continuous forming by coordinating the circumferential rotation of the outer ring 1 and the inner ring 2 with the radial movement of the weaving spindle to form a periodic weaving cycle.

[0030] Specifically, the weaving method includes the following steps: like Figure 3As shown, the outer ring 1 and inner ring 2 control the outer ring braided yarn spindle 4, which is located in the first spindle slot, and the inner ring braided yarn spindle 5, which is located in the second spindle slot, to rotate in opposite directions along the circumference. Through this opposite rotation, the yarns form an initial interlacing relationship between the fixed spindles 6, creating conditions for subsequent radial transposition.

[0031] Furthermore, such as Figure 4 and Figure 5 As shown, the outer ring braided yarn spindle 4 in the first spindle slot and the inner ring braided yarn spindle 5 in the second spindle slot move radially respectively, so that the outer ring braided yarn spindle 4 is moved to the second spindle slot and the inner ring braided yarn spindle 5 is moved to the first spindle slot. Through this radial repositioning operation, the yarn is inserted between the fixed yarn and the yarns arranged in other directions in the radial direction, thereby enhancing the continuity and constraint of the fabric in the radial direction and avoiding the formation of a loose tube wall structure.

[0032] Specifically, such as Figure 6 As shown, after radial transposition is completed, the outer and inner rings control the braided yarn spindles 5' and 4' in the first and second spindle slots, respectively, to rotate in opposite directions along the circumference. During this reverse rotation, the outer and inner rings move the braided yarn spindles to the sides of the adjacent fixed yarn spindles 6 along the circumference, thereby forming a stable three-dimensional interlacing structure under the constraint of the yarn, which is beneficial to improving the overall strength of the sleeve in the axial direction.

[0033] Furthermore, the braided yarn spindle 5' in the first spindle slot and the braided yarn spindle 4' in the second spindle slot are controlled to move radially, respectively, so that they return to the first and second spindle slots before the transposition. Through the above reciprocating radial transposition and return operations, the braided yarn continuously changes its radial position in different braiding cycles, thereby forming a repetitive and tight spatial braiding path.

[0034] Furthermore, the first spindle slot and the second spindle slot are aligned radially, and the radial movement of the weaving spindle is carried out without changing this alignment. By maintaining the radial alignment, the movement trajectory of the spindle is made more stable, motion interference is reduced, and reliability in high-speed weaving is improved.

[0035] Specifically, circumferential rotation and radial movement alternate in a predetermined sequence to form a complete weaving cycle. This weaving cycle is repeated along the axial direction, and during the process, the yarn is drawn out and fixed to the mandrel, thereby gradually forming a continuous three-dimensional fabric sleeve. The three-dimensional fabric sleeve formed in the embodiments of this application is as follows: Figure 7As shown. By continuously repeating the process in the axial direction, the sleeve length is no longer limited by a single braiding stroke, making it suitable for manufacturing products with different length requirements.

[0036] It should be noted that, without changing the weaving sequence of the outer ring 1 and inner ring 2 rotating in coordination to radially reposition the yarn spindles, the driving methods of the outer ring 1 and inner ring 2 can be replaced as needed. For example, gear transmission, synchronous belt transmission, or chain transmission can be used to achieve rotational drive. The radial movement mechanism can also be replaced by a linear sliding structure with a roller guide structure or a cam drive structure. As long as the controllable radial movement and repositioning of the yarn spindles can be achieved, it can be regarded as an equivalent implementation of this solution.

[0037] In summary, the present invention provides a braiding structure and method for weaving a three-dimensional fabric sleeve. The braiding structure includes an outer ring 1, an inner ring 2, and an intermediate ring 3 disposed between the two. The intermediate ring 3 is fixedly disposed, and the outer ring 1 and the inner ring 2 are rotatably disposed on both sides of the intermediate ring 3. The outer ring 1 and the inner ring 2 are respectively provided with a plurality of radially aligned spindle slots along the circumferential direction. The spindle slots of the outer ring 1 are defined as the first spindle slots, and the spindle slots of the inner ring 2 are defined as the second spindle slots. The intermediate ring 3 is provided with a third spindle slot along the circumferential direction. The third spindle slot is radially aligned with the first and second spindle slots, and a fixed yarn is disposed between any two adjacent third spindle slots. Spindle 6; With this configuration, the outer ring 1 and the inner ring 2 rotate relative to each other on both sides of the middle ring 3. In conjunction with the radially aligned first spindle slot, second spindle slot, and third spindle slot, a clear and controllable yarn path can be formed between the circumferential and radial movements. This allows for more efficient use of the path within the limited equipment space, reduces the ineffective empty space caused by the increase in weaving size, and improves the overall utilization rate of the equipment. At the same time, by setting fixed yarn spindles 6 at intervals on the middle ring 3, a stable spatial constraint relationship is formed in the yarn during the weaving process, which improves the problem of insufficient internal constraint in the existing structure and is conducive to obtaining a more compact structure and a lower porosity three-dimensional fabric sleeve.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] For ease of description, directional terms such as "front, back, up, down, left, right," "horizontal, vertical, horizontal," and "top, bottom" generally indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are used solely for the purpose of facilitating the description of this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the referred mechanism or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the components themselves. For example, if a device in the drawings is inverted, a device described as "above" or "on top of" other devices or structures will subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0040] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] Unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0043] It should also be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0044] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0045] It should also be noted that the above are merely preferred embodiments of this application and do not limit the scope of patent protection of this application. Any equivalent structural or procedural changes made using the content of this application’s specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A braided structure for braiding a three-dimensional fabric sleeve, characterized in that, include: Outer ring, inner ring, and intermediate ring between the two; The intermediate ring is configured to be fixed, and the outer ring and the inner ring are respectively rotatably disposed on both sides of the intermediate ring; The outer ring and the inner ring are respectively provided with a plurality of radially aligned spindle slots along the circumferential direction. The spindle slot of the outer ring is defined as the first spindle slot, and the spindle slot of the inner ring is defined as the second spindle slot. The middle ring is provided with a third spindle slot along the circumferential direction. The third spindle slot is radially aligned with the first spindle slot and the second spindle slot. A fixed yarn spindle is provided on the middle ring every other third spindle slot. The first spindle slot is provided with an outer ring braided yarn spindle, and the second spindle slot is provided with an inner ring braided yarn spindle.

2. The braided structure according to claim 1, characterized in that, The outer ring braided yarn spindle and the inner ring braided yarn spindle are configured to move radially within the corresponding spindle slots, and during the radial movement, they are respectively interchanged between the first spindle slot and the second spindle slot.

3. The braided structure according to claim 1, characterized in that, Along the circumferential direction of the intermediate ring, any four adjacent fixed yarn spindles, one outer ring braided yarn spindle, and one inner ring braided yarn spindle constitute a spindle group, and the spindle group is periodically repeated along the circumferential direction of the intermediate ring.

4. A weaving method, characterized in that, Applied to the braided structure as described in any one of claims 1-3, the method comprises: The outer ring and the inner ring are controlled to drive the braided yarn spindles located in the first spindle slot and the braided yarn spindles located in the second spindle slot to rotate in opposite directions along the circumferential direction. The braided yarn spindles in the first spindle slot and the braided yarn spindles in the second spindle slot are controlled to move radially respectively, so that the braided yarn spindles in the first spindle slot are moved to the second spindle slot, and the braided yarn spindles in the second spindle slot are moved to the first spindle slot. The outer ring and the inner ring are controlled to drive the braided yarn spindle in the first spindle slot after the transposition and the braided yarn spindle in the second spindle slot after the transposition to rotate in opposite directions along the circumference. The braided yarn spindles in the first spindle slot and the braided yarn spindles in the second spindle slot are controlled to move radially, so that they return to the first spindle slot and the second spindle slot before the swapping, respectively.

5. The weaving method according to claim 4, characterized in that, In the step of controlling the outer ring and the inner ring to drive the woven yarn spindle in the first spindle slot and the woven yarn spindle in the second spindle slot after the transposition to rotate in opposite directions along the circumference, the opposite rotation of the outer ring and the inner ring causes the woven yarn spindle to move along the circumference to both sides of the position of the adjacent fixed yarn spindle.

6. The weaving method according to claim 4, characterized in that, The first spindle slot and the second spindle slot are aligned in the radial direction, and the radial movement of the braided yarn spindle is carried out without changing this alignment relationship.

7. The weaving method according to claim 4, characterized in that, The circumferential rotation and the radial movement are performed alternately in a predetermined sequence to form a weaving cycle.

8. The weaving method according to claim 7, characterized in that, The weaving cycle is repeated along the axial direction, during which the yarn is drawn out and fixed on the mandrel to form a three-dimensional fabric sleeve.

Images