Longitudinal and transverse weaving method for weaving three-way fabric sleeve
By using the coordinated rotation and radial motion of the outer and inner rings of a three-dimensional circular knitting machine, the problems of large size and high cost of three-dimensional fabric sleeve weaving equipment have been solved, achieving low-cost and high-efficiency three-dimensional fabric sleeve production.
Patent Information
- Application Number
- CN202511161623.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2025-10-31
AI Technical Summary
Existing three-dimensional fabric sleeve weaving methods and equipment are bulky and costly, making it difficult to achieve large-scale, low-cost applications.
The three-dimensional circular knitting machine is used to knit three-dimensional fabric sleeves through the coordinated rotation and radial movement of the outer and inner rings. The structure is simple and the yarn is densely arranged.
It reduces equipment costs, enables low-cost weaving of large three-dimensional fabric sleeves, and improves production efficiency. The equipment size is reduced, and yarn production can be carried out continuously without stopping the machine to add third-dimensional yarn.
Smart Images
Figure CN120867007A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of weaving technology, and in particular to a method for weaving a three-dimensional fabric sleeve using both longitudinal and transverse weaving techniques. Background Technology
[0002] Triaxial fabric tubing is a tubular fiber prefabricated structure made of three sets of yarns interwoven at a specific angle. Because the three sets of yarns are arranged in a three-dimensional interlocking pattern in space, they can form a stable hollow structure, making it a promising lightweight material for structural reinforcement in aerospace, civil engineering, and automotive fields. However, existing weaving methods for triaxial fabric tubing have significant shortcomings, limiting its large-scale, low-cost application.
[0003] Currently, the industry mainly uses rotary braiding machines to weave three-dimensional fabric sleeves. Rotary braiding machines use several rotatable dials arranged in a circular direction to cause spindles to drive the yarns to interweave along a predetermined path to form a tubular fabric. While this method can achieve three-dimensional interweaving, it has the following drawbacks: The overall equipment is large and costly: Rotary braiding machines require a larger equipment size to lay out a set number of yarns. To meet the weaving needs of large three-dimensional fabric sleeves, rotary braiding machines need to increase the diameter of the turntable and the number of spindles. The overall equipment is exponentially enlarged, which not only occupies a lot of factory space, but also has a complex transmission system, and the manufacturing, maintenance and energy costs rise sharply. Summary of the Invention
[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a method for weaving three-dimensional fabric sleeves using a row-and-column three-dimensional circular knitting machine. This machine has a simple overall structure, low cost, and the advantage of dense yarn arrangement, which can reduce equipment costs and provide a new method for low-cost weaving of large three-dimensional fabric sleeves.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: A method for weaving a three-dimensional fabric sleeve includes the following steps: The circular knitting machine adopts a row-and-column design, which includes a rotatable outer ring and an inner ring. An intermediate fixed ring is provided between the outer ring and the inner ring. Spindle slots are provided along the circumferential direction on the outer ring, the inner ring and the intermediate fixed ring. The corresponding spindle slots on each ring are in the same radial direction. A fixed yarn spindle is set on the intermediate fixed ring every two sets of spindle slots. A knitting yarn spindle is set on the outer ring and the inner ring every five sets of spindle slots. The yarn spindles of different rings are not in the same radial spindle slot, and the yarn spindles of the inner ring and the outer ring are distributed in adjacent spindle slots. In each spindle group, the outer ring and inner ring respectively drive the outer ring braided yarn spindle and the inner ring braided yarn spindle to rotate one step in opposite directions; the braided yarn spindle moves radially two steps in the spindle slot, so that the outer ring braided yarn spindle moves into the inner ring spindle slot, and the inner ring braided yarn spindle moves into the outer ring spindle slot; the outer ring drives the inner ring braided yarn spindle, and the inner ring drives the outer ring braided yarn spindle to move in opposite directions two steps at the same time, so that the two braided yarn spindles move to the two fixed yarn spindles away from each other; the braided yarn spindle moves radially two steps in the spindle slot, so that the outer ring braided yarn spindle returns to the outer ring spindle slot, and the inner ring braided yarn spindle returns to the inner ring spindle slot; the above steps are repeated to obtain a three-dimensional fabric sleeve structure.
[0006] As a further implementation, the row-type circular knitting machine also includes a base, with an outer ring, an inner ring, and a middle fixed ring set on the base. The middle fixed ring is fixedly connected to the base, and the outer ring and inner ring can rotate on the base.
[0007] As a further implementation, the base is annular, with a mandrel at the center of the base. The axis of the mandrel can be a straight line or a curve, and the diameter of the mandrel can be fixed or variable.
[0008] As a further implementation, the spindle on the outer ring is an outer ring woven yarn spindle, and the yarn spindle on the inner ring is an inner ring woven yarn spindle.
[0009] As a further implementation, the outer ring braided yarn spindle and the inner ring braided yarn spindle, which are set in adjacent spindle slots, are located between two adjacent fixed yarn spindles to form a set of spindles.
[0010] As a further implementation, the outer ring braided yarn spindle can move radially to the inner ring spindle slot within the spindle slot; the inner ring braided yarn spindle can move radially to the outer ring spindle slot within the spindle slot.
[0011] As a further implementation, the spindle rotates one step, which is equivalent to the spacing of one spindle slot in the circumferential direction.
[0012] As a further implementation, the outer ring rotates counterclockwise by one step, and the inner ring rotates clockwise by one step, so that the outer ring weaving yarn spindle and the inner ring weaving yarn spindle rotate in opposite directions by one step.
[0013] As a further implementation, the outer ring rotates clockwise for two steps, and the inner ring rotates counterclockwise for two steps, so that the outer ring drives the inner ring weaving spindle and the inner ring drives the outer ring weaving spindle to move in opposite directions for two steps at the same time.
[0014] The beneficial effects of the present invention are as follows: This invention relates to a yarn arrangement structure for weaving three-dimensional fabric sleeves on a row-and-column circular knitting machine. A fixed spindle is positioned on the central fixed ring at intervals of two sets of spindle slots. On the outer and inner rings, a weaving spindle is positioned at intervals of five spindle slots. The spindles from different rings are not in the same radial spindle slot, and the spindles of the inner and outer rings are distributed in adjacent spindle slots. This structural arrangement enables the weaving of three-dimensional fabric sleeves. The row-and-column three-dimensional circular knitting machine has a simple overall structure and low cost, while also possessing the advantage of dense yarn arrangement, reducing equipment costs and providing a new method for low-cost weaving of large three-dimensional fabric sleeves. By arranging this yarn arrangement structure on the row-and-column circular knitting machine, the equipment size is effectively reduced, and the three-dimensional yarns remain continuous, enabling continuous production without stopping the machine to add third-dimensional yarn, thus improving production efficiency. Attached Figure Description
[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.
[0016] Figure 1 This is a schematic diagram of the yarn arrangement structure in an embodiment of the present invention; Figure 2 This is a top view of the yarn arrangement structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the first step of the weaving method in an embodiment of the present invention; Figure 4 This is a schematic diagram of step 2 of the weaving method in an embodiment of the present invention; Figure 5 This is a schematic diagram of step 3 of the weaving method in an embodiment of the present invention; Figure 6 This is a schematic diagram of step 4 of the weaving method in an embodiment of the present invention; Figure 7 This is a planar view of the three-dimensional fabric structure in an embodiment of the present invention; Figure 8 This is a schematic diagram of the three-way fabric sleeve structure in an embodiment of the present invention.
[0017] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.
[0018] Among them: 1. outer ring, 2. middle fixing ring, 3. inner ring, 4. base, 5. spindle slot, 6. fixed spindle, 7. outer ring woven spindle, 8. inner ring woven spindle. Detailed Implementation
[0019] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0020] Example 1 In a typical embodiment of the present invention, such as Figures 1-8 As shown, a method for weaving a three-dimensional fabric sleeve is described, which is arranged on a row-type circular knitting machine. The row-type circular knitting machine includes a rotatable outer ring and an inner ring, with an intermediate fixed ring between the outer ring and the inner ring.
[0021] The row-and-column three-dimensional circular knitting machine also includes a base 4, which is annular. An outer ring, an inner ring, and a middle fixed ring are mounted on the base, arranged from the inside out as an inner ring 3, a middle fixed ring 2, and an outer ring 1. The middle fixed ring 2 is fixedly connected to the base 4 and cannot rotate. The outer ring 1 and the inner ring 3 can rotate clockwise or counterclockwise on the base 4. It is understood that the rotation of the outer ring 1 and the inner ring 3 is existing technology.
[0022] The base 4 has a mandrel at its center, which can lead out the yarn and fix it at a suitable position on a mandrel of appropriate size. The axis of the mandrel can be a straight line or a curve, and the diameter of the mandrel can be fixed or variable.
[0023] The outer ring 1, inner ring 3, and intermediate fixing ring 2 are provided with spindle slots 5 along the circumferential direction. The corresponding spindle slots 5 on each ring are in the same radial direction, so the number of spindle slots 5 on each ring is the same and they are set accordingly. The outer ring 1, inner ring 3, and intermediate fixing ring 2 are used to install yarn spindles through the spindle slots 5.
[0024] like Figure 1 and Figure 2 As shown, the spindles installed in the spindle slots 5 on the outer ring 1 and the inner ring 3 are braided yarn spindles, with the outer ring spindle being the outer ring braided yarn spindle 7 and the inner ring spindle being the inner ring braided yarn spindle 8. The spindle installed in the spindle slot on the middle fixing ring 2 is the fixing yarn spindle 6.
[0025] like Figure 2 As shown, multiple fixed yarn spindles are installed on the middle fixed ring 2, with two spindle slots between adjacent fixed yarn spindles.
[0026] like Figure 2 As shown, a braiding spindle is provided every five spindle slots 5 on the outer ring 1 and the inner ring 3. Furthermore, the spindles of different rings in the outer ring 1, the intermediate fixed ring 2, and the inner ring 3 are not located in the same radial direction spindle slot 5; that is, in the three spindle slots 5 in the same radial direction, only one braiding spindle or fixed spindle 6 is provided. Meanwhile, the spindles of the inner ring 3 and the outer ring 1 are distributed in adjacent spindle slots.
[0027] Based on the above arrangement of the spindles, in this embodiment, the outer ring braided yarn spindle 7 and the inner ring braided yarn spindle 8, which are disposed in the adjacent spindle slots 5, are located between two adjacent fixed yarn spindles 6, forming a set of spindles. A set of spindles includes four spindles: two fixed yarn spindles 6 on both sides and the outer ring braided yarn spindle 7 and the inner ring braided yarn spindle 8 in the middle. Two radial spindle slots are spaced between adjacent sets of spindles.
[0028] like Figure 2 As shown, the outer ring braided yarn spindle 7 can move radially from the spindle slot 5 of the outer ring 1 to the spindle slot 5 of the inner ring 3; similarly, the inner ring braided yarn spindle 8 can move radially from the spindle slot 5 of the inner ring 3 to the spindle slot 5 of the outer ring 1.
[0029] It is understandable that the outer ring braided yarn spindle 7 and the inner ring braided yarn spindle 8 have the same structure, and the radial movement of the outer ring braided yarn spindle 7 and the inner ring braided yarn spindle 8 is existing technology.
[0030] The three-dimensional fabric sleeve weaving method specifically includes the following steps: S1: In each group of spindles, the outer ring 1 and the inner ring 3 drive the outer ring weaving yarn spindle 7 and the inner ring weaving yarn spindle 8 to rotate one step in opposite directions, respectively.
[0031] S2: The braided yarn spindle moves radially for two steps within the spindle slot 5, causing the outer ring braided yarn spindle 7 to move into the inner ring 3's spindle slot 5, and the inner ring braided yarn spindle 8 to move into the outer ring 1's spindle slot 5.
[0032] S3: The outer ring 1 drives the inner ring weaving spindle 8, and the inner ring 3 drives the outer ring weaving spindle 7 to move in opposite directions for two steps at the same time, so that the two weaving spindles move to the two fixed spindles 6 away from each other on one side.
[0033] S4: The braided yarn spindle moves radially for two steps in the spindle slot 5, so that the outer ring braided yarn spindle 7 returns to the spindle slot 5 of the outer ring 1, and the inner ring braided yarn spindle 8 returns to the spindle slot 5 of the inner ring 3; repeat S1-S4, and draw out the yarn and fix it in the appropriate position on the mandrel of appropriate size to obtain the three-dimensional fabric sleeve structure.
[0034] It is understandable that one rotation of the spindle is equivalent to the spacing of one spindle slot in the circumferential direction.
[0035] Specific examples are as follows Figures 3-6 As shown, let's take a loop as an example: like Figure 3 As shown, Step 1: Rotate the outer ring 1 counterclockwise by one step, and rotate the inner ring 3 clockwise by one step (one radial groove spacing in the circumferential direction).
[0036] like Figure 4 As shown, in step 2, the yarn spinning spindle moves radially for two steps, the inner ring yarn spinning spindle 8 moves to the spindle slot 5 of the outer ring 1, and the outer ring yarn spinning spindle 7 moves to the spindle slot 5 of the inner ring.
[0037] Through steps 1 and 2, the outer ring braided yarn spindle 7 and the inner ring braided yarn spindle 8 between the two fixed yarn spindles are essentially interchanged.
[0038] like Figure 5 As shown, in step 3, the outer ring 1 rotates clockwise for two steps, and the inner ring 3 rotates counterclockwise for two steps. The outer ring weaving spindle 7 and the inner ring weaving spindle 8 between the two fixed spindles 6 move from between the two fixed spindles to both sides of the fixed spindles in opposite directions along the circumference.
[0039] like Figure 6 As shown, in step 4, the braided yarn spindle moves radially for two steps within the spindle slot 6, causing the outer ring braided yarn spindle 7 to return to the spindle slot of the outer ring 1, and the inner ring braided yarn spindle 8 to return to the spindle slot of the inner ring.
[0040] Repeat the above 4 steps to obtain a tubular triaxial fabric sleeve.
[0041] The row-and-column three-dimensional circular knitting machine has a simple structure, low cost, and dense yarn arrangement, which can reduce equipment costs and provide a new method for low-cost weaving of large three-dimensional fabric sleeves.
[0042] It is understood that the specific arrangement of the yarn carriers during the weaving process is also within the scope of this invention.
[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A method for weaving a three-dimensional fabric sleeve, characterized in that, Includes the following steps: The circular knitting machine adopts a row-and-column design, which includes a rotatable outer ring and an inner ring. An intermediate fixed ring is provided between the outer ring and the inner ring. Spindle slots are provided along the circumferential direction on the outer ring, the inner ring and the intermediate fixed ring. The corresponding spindle slots on each ring are in the same radial direction. A fixed yarn spindle is set on the intermediate fixed ring every two sets of spindle slots. A knitting yarn spindle is set on the outer ring and the inner ring every five sets of spindle slots. The yarn spindles of different rings are not in the same radial spindle slot, and the yarn spindles of the inner ring and the outer ring are distributed in adjacent spindle slots. In each spindle group, the outer ring and inner ring respectively drive the outer ring braided yarn spindle and the inner ring braided yarn spindle to rotate one step in opposite directions; the braided yarn spindle moves radially two steps in the spindle slot, so that the outer ring braided yarn spindle moves into the inner ring spindle slot, and the inner ring braided yarn spindle moves into the outer ring spindle slot; the outer ring drives the inner ring braided yarn spindle, and the inner ring drives the outer ring braided yarn spindle to move in opposite directions two steps at the same time, so that the two braided yarn spindles move to the two fixed yarn spindles away from each other; the braided yarn spindle moves radially two steps in the spindle slot, so that the outer ring braided yarn spindle returns to the outer ring spindle slot, and the inner ring braided yarn spindle returns to the inner ring spindle slot; the above steps are repeated to obtain a three-dimensional fabric sleeve structure.
2. The method for weaving a three-dimensional fabric sleeve according to claim 1, characterized in that, The row-type circular knitting machine also includes a base, an outer ring, an inner ring, and a middle fixed ring set on the base. The middle fixed ring is fixedly connected to the base, and the outer ring and inner ring can rotate on the base.
3. The method for weaving a three-dimensional fabric sleeve according to claim 2, characterized in that, The base is ring-shaped, with a mandrel at the center. The axis of the mandrel can be a straight line or a curve, and the diameter of the mandrel can be fixed or variable.
4. The method for weaving a three-dimensional fabric sleeve according to claim 1, characterized in that, The spindles on the outer ring are outer ring woven spindles, and the spindles on the inner ring are inner ring woven spindles.
5. The method for weaving a three-dimensional fabric sleeve according to claim 4, characterized in that, The outer ring braided yarn spindle and the inner ring braided yarn spindle, which are set in adjacent spindle slots, are located between two adjacent fixed yarn spindles and together form a set of spindles.
6. The method for weaving a three-dimensional fabric sleeve according to claim 5, characterized in that, The outer ring braided yarn spindle can move radially to the inner ring spindle slot within the spindle slot; the inner ring braided yarn spindle can move radially to the outer ring spindle slot within the spindle slot.
7. The method for weaving a three-dimensional fabric sleeve according to claim 1, characterized in that, One rotation of the spindle equals the spacing of one spindle slot in the circumferential direction.
8. The method for weaving a three-dimensional fabric sleeve according to claim 1, characterized in that, The outer ring rotates counterclockwise by one step, and the inner ring rotates clockwise by one step, so that the outer ring weaving spindle and the inner ring weaving spindle rotate in opposite directions by one step.
9. The method for weaving a three-dimensional fabric sleeve according to claim 1, characterized in that, The outer ring rotates clockwise for two steps, and the inner ring rotates counterclockwise for two steps, so that the outer ring drives the inner ring weaving spindle and the inner ring drives the outer ring weaving spindle to move in opposite directions for two steps at the same time.