Hexagonal honeycomb three-dimensional braiding device and braiding method thereof

Abstract

The application discloses a hexagonal honeycomb three-dimensional weaving device and a weaving method thereof. The weaving monomers are arranged in a square matrix combination according to the shape of a regular hexagon and are collectively woven. The weaving monomers comprise a supporting platform, a rotating disc and a yarn carrier. Three rotating gears and a guide rail are uniformly distributed on the upper end surface of the rotating disc along the circumference. A sliding block is arranged on the guide rail. The sliding block is connected with the rotating gears through a connecting rod. The yarn carrier is connected with the guide rail through a guide rail groove. A gear ring with external teeth is arranged on the lower end surface of the rotating disc. A rotating shaft is arranged at the center of the rotating disc. A center gear and a driven gear are arranged at the upper and lower ends of the rotating shaft. The center gear is engaged with the three rotating gears. The gear ring with external teeth and the driven gear are connected with driving motors respectively. The hexagonal honeycomb shape can bear forces from multiple directions and improves the comprehensive performance of the material.

Description

TECHNICAL FIELD

[0001] The present application relates to a weaving technology of composite materials, in particular to a hexagonal honeycomb three-dimensional weaving device and a weaving method thereof. BACKGROUND

[0002] With the continuous progress of industrial technology, the existing materials have not been able to fully meet the functional requirements of industrial equipment. Therefore, three-dimensional woven materials with higher toughness, lighter weight and stronger pressure capacity are gradually becoming the preferred choice for modern industrial production.

[0003] But now the three-dimensional weaving technology is not advanced enough, most of the three-dimensional weaving machines have poor error tolerance, and small errors cannot be adjusted in time, but gradually accumulate until the machine is damaged and cannot move. Moreover, the woven body is subjected to monotonous stress direction, the weaving structure is complex, and the weaving speed is slow. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a hexagonal honeycomb three-dimensional weaving device and a weaving method thereof, which are reasonable in design, good in toughness and high in production efficiency.

[0005] The technical solution of the present application is:

[0006] A hexagonal honeycomb three-dimensional weaving device, comprising a weaving unit, the weaving unit is arranged in the shape of a regular hexagon and constitutes a square array combination, the weaving unit comprises a support platform, a rotating disc and a yarn carrier, the rotating disc is arranged on the support platform and is rotationally connected thereto, three rotating gears and a guide rail are uniformly distributed on the upper end surface of the rotating disc, a sliding block is arranged on the guide rail, the sliding block is connected to the rotating gear through a connecting rod, the yarn carrier is connected to the guide rail through a guide rail slot, and an external tooth ring is arranged on the lower end surface of the rotating disc;

[0007] A rotating shaft is arranged at the center of the rotating disc, a center gear is arranged at the upper end of the rotating shaft, the center gear is engaged with the three rotating gears, and a driven gear is arranged at the lower end of the rotating shaft;

[0008] The external tooth ring and the driven gear are respectively connected to a driving motor to rotate and weave the yarn.

[0009] Further, the external tooth rings on all the rotating discs are connected together by a set of transmission tooth belts, and the outermost one of the external tooth rings is connected to an external tooth ring driving motor; all the driven gears are connected together by another set of transmission tooth belts, and the outermost one of the driven gears is connected to a driven gear driving motor.

[0010] Further, all the outer toothed ring gears on the rotating discs are connected together through a set of intermediate transition gears, and finally connected with the outer toothed ring gear drive motor; all the driven gears are connected together through another set of intermediate transition gears, and finally connected with the driven gear drive motor.

[0011] Further, the support platform is a regular hexagon, and a central stepped shaft hole is arranged on the upper end face of the support platform, the rotating disc is located at the upper part of the central stepped shaft hole, and the outer toothed ring gear extends from the lower part of the central stepped shaft hole; a passage is arranged on the upper hole wall of the central stepped shaft hole to facilitate the passage of the yarn carrier.

[0012] Further, the end face of the guide rail is a T-shaped structure, and a wire column is arranged on the upper end of the yarn carrier, and the guide rail groove at the lower end of the yarn carrier is also a T-shaped structure.

[0013] Further, the support platform, rotating disc and yarn carrier are all made of aluminum alloy or abs engineering plastic, so that the friction of the sliding rail is reduced when being exchanged.

[0014] Further, there is a gap between the adjacent support platforms or between the support platform and the rotating disc, and the gap is not greater than the width of the yarn carrier, so as to prevent the yarn carrier from falling off.

[0015] A hexagonal honeycomb three-dimensional weaving method using the hexagonal honeycomb three-dimensional weaving device, comprising the following steps:

[0016] (1) First, the number of weaving monomers is selected according to the need and arranged in an array, then the outer toothed ring gear and the driven gear are respectively connected with the drive motor, and finally the drive motor is started;

[0017] (2) The rotating disc drives the yarn carrier to rotate by 240°, so that the yarn is knotted, and in the rotating process of the rotating disc, the lower driven gear rotates at the same speed to ensure that the central gear is relatively stationary with the rotating disc, preventing the displacement of the sliding block;

[0018] (3) The upper outer toothed ring gear is stationary, and the lower driven gear continues to rotate by 360°, driving the rotating gear to rotate through the central gear, thereby driving the connecting rod to move outward and reach the maximum distance, pushing the yarn carrier into the sliding rail on the adjacent rotating disc;

[0019] (4) The rotating disc starts to rotate, at this time the lower driven gear starts to rotate at the same speed to keep relative stillness with the rotating disc, and the rotating disc rotates by 240° and stops again;

[0020] (5), the upper layer of the outer gear ring is static, the lower layer of the driven gear continues to rotate 180 degrees, and the center gear and the driving gear drive the connecting rod to move outward to the maximum distance, so that the yarn carrier is pushed into the slide rail of the next rotating disc;

[0021] (6), repeat the above steps, when it continues to the sixth time, the yarn carrier returns to the original position, and the above operation can be continued to complete the knitting.

[0022] Further: the structure is formed by three roots distributed outside the central axis at intervals of 120 degrees and spirally wound at 240 degrees, the yarn between the starting points is 120 degrees apart, and the yarn between the ending points is 120 degrees apart when the wheel center is rotated 240 degrees, so as to form a structural monomer.

[0023] Further: when the yarn runs through a unit, the first unit is the first layer, the yarn carrier is pushed into the next disc after the first layer is knitted, and the second round of knitting is started, the wheel center is rotated 240 degrees, and when the second round is completed, the benzene shape is formed, and in the overall structure, the arrangement of the yarn, the yarn carrier is considered as a layer when it rotates 240 degrees, and when the knitting enters the odd layer, the yarn carrier is pushed back by the outer slide, at this time, the yarn carrier in the even layer is not moved, so as to present a columnar body shape.

[0024] The beneficial effects of the present application are:

[0025] 1. The present application is formed by three roots distributed outside the central axis at intervals of 120 degrees and spirally wound at 240 degrees, the yarn between the starting points is 120 degrees apart, and the yarn between the ending points is 120 degrees apart when the wheel center is rotated 240 degrees, so as to form a structural monomer, and the structural monomers are connected in staggered manner to form a hexagonal honeycomb shape, which can effectively withstand forces from multiple directions and improve the comprehensive performance of the material.

[0026] 2. The present application can ensure the regularity and consistency of the movement of the yarn carrier by setting the guide rail, prevent deviation, and improve the knitting effect.

[0027] 3. The present application adopts a crank connecting rod structure, which can periodically push the yarn carrier to move back and forth, can participate in the knitting of adjacent different rotating discs, and has good consistency.

[0028] 4. The present application adopts a crank connecting rod structure, which can periodically push the yarn carrier to move back and forth, can participate in the knitting of adjacent different rotating discs, and has good consistency.

[0029] 5. This invention is reasonably designed, has good toughness and high production efficiency, and can be applied to a variety of industrial applications. In particular, it has shown its unique advantages and application potential in fields that require high strength and multi-functional load-bearing support, and its promotion will bring good economic benefits. Attached Figure Description

[0030] Figure 1 A three-dimensional structural diagram of a hexagonal honeycomb-shaped three-dimensional weaving device;

[0031] Figure 2 for Figure 1 A three-dimensional structural diagram of the central support platform;

[0032] Figure 3 for Figure 1 3D structural diagram of the yarn carrier;

[0033] Figure 4 for Figure 1 Rear view of the rotating disk;

[0034] Figure 5 for Figure 1 3D structural diagram of the central gear;

[0035] Figure 6 for Figure 1 Diagram showing the combination of the rotating disc and the central gear (with yarn carrier).

[0036] Figure 7 for Figure 1 Diagram showing the combination of the rotating disc and the central gear (without the yarn carrier). Detailed Implementation

[0037] Example 1: See Figure 1 — Figure 7 In the figure, 1-support platform, 2-rotating disk, 3-yarn carrier, 4-transmission toothed belt, 5-center gear, 6-channel, 7-external toothed ring, 8-thread post, 9-guide rail groove, 10-rotating shaft, 11-driven gear, 12-rotating gear, 13-connecting rod, 14-slider, 15-guide rail.

[0038] A hexagonal honeycomb three-dimensional weaving device includes weaving units, wherein the weaving units are arranged in the shape of regular hexagons to form a square array combination. Each weaving unit includes a support platform 1, a rotating disk 2, and a yarn carrier 3. The rotating disk 2 is set on the support platform 1 and the two are rotatably coupled. Three rotating gears 12 and guide rails 15 are evenly distributed along the circumference on the upper surface of the rotating disk 2. A slider 14 is set on the guide rail 15 (the two are slidably connected, guiding and sliding). The slider 14 is connected to the rotating gears 12 through a connecting rod 13 (all connections here are rotatable connections, capable of rotation, forming a crank-connecting rod mechanism). The yarn carrier 3 is connected to the guide rail 15 through a guide rail groove 9 (the two are slidably connected, guiding and sliding). An external toothed ring 7 is set on the lower surface of the rotating disk 2.

[0039] A rotating shaft 10 is provided at the center of the rotating disk 2. A central gear 5 is provided at the upper end of the rotating shaft 10. The central gear 5 meshes with three rotating gears 12 at the same time. A driven gear 11 is provided at the lower end of the rotating shaft 10.

[0040] All the external gear rings 7 on the rotating disks 2 are connected together by a set of transmission belts 4, and the outermost external gear ring 7 is simultaneously connected to the external gear ring drive motor (not shown in the figure); all the driven gears 11 are connected together by another set of transmission belts 4, and the outermost driven gear 11 is simultaneously connected to the driven gear drive motor (not shown in the figure). Thus, a drive motor can drive one layer of external gear rings 7 or driven gears 11 to rotate. Of course, the external gear rings 7 and driven gears 11 can be made with a certain thickness to allow them to connect to several transmission belts 4 simultaneously.

[0041] Preferred solution: The support platform 1 is a regular hexagon with a central stepped shaft hole on its upper end face. The rotating disk 2 is located above the central stepped shaft hole, and the external toothed ring 7 extends from the lower part of the central stepped shaft hole. A channel 6 is provided on the upper wall of the central stepped hole to facilitate the passage of the yarn carrier 3.

[0042] Preferred solution: The end face of the guide rail 15 is a T-shaped structure, the upper end of the yarn carrier 3 is provided with a yarn post 8, and the lower end of the guide rail groove 9 is also a T-shaped structure.

[0043] Preferred solution: The support platform 1, rotating disk 2 and yarn carrier 3 are all made of aluminum alloy or ABS engineering plastic to reduce the friction of the slide rail during exchange.

[0044] Preferred solution: There is no contact between adjacent support platforms 1 or between support platform 1 and rotating disk 2, and there is a gap between them, which is no greater than the width of yarn carrier 3, to prevent yarn carrier 3 from falling.

[0045] The weaving method is as follows:

[0046] (1) First, select the number of woven units as needed and arrange them in a formation. Then, connect the external gear ring 7 and the driven gear 11 to the drive motor respectively. Finally, start the drive motor.

[0047] (2) Rotating the disc 2 drives the yarn carrier 3 to rotate 240°, causing the yarn to knot. During the rotation of the disc 2, the driven gear 11 in the lower layer rotates at the same speed to ensure that the central gear 5 is relatively stationary with respect to the disc 2, preventing the slider from shifting.

[0048] (3) The upper outer gear ring 7 is stationary, and the lower driven gear 11 continues to rotate 360 ​​degrees. It drives the rotating gear 12 to rotate through the central gear 5, thereby driving the connecting rod 13 to move. The connecting rod 13 drives the slider 14 to move outward and reach the maximum distance, pushing the yarn carrier 3 into the slide rail 15 on the adjacent rotating disk 22.

[0049] (4) Rotating disk 2 starts to rotate. At this time, the driven gear 11 on the lower layer starts to rotate at the same speed, keeping it relatively stationary with respect to rotating disk 2. Rotating disk 2 stops again after rotating 240°.

[0050] (5) The upper outer gear ring 7 is stationary, and the lower driven gear 11 continues to rotate 180°. Through the central gear 5 and the driving gear 12, the connecting rod 13 moves outward to the maximum distance, pushing the yarn carrier 3 into the slide rail 15 of the next rotating disc 2.

[0051] (6) Repeat the above steps. When it is the sixth time, the yarn carrier 6 returns to its original position and the above operation can continue.

[0052] After the yarn completes one unit, let's call the first unit the first layer. After the first layer is finished, the yarn carrier is pushed into the next wheel to start the second round of weaving. The wheel rotates 240° around the center. When the second round ends, the cylindrical shape is formed. In the overall structure, the arrangement of the yarns is considered as one layer for every 240-degree rotation of the yarn carrier. When weaving enters an odd-numbered layer, the yarn carrier is pushed back by the outer layer slider. At this time, the yarn carrier in the even-numbered outer layer does not move, so it presents a columnar shape.

[0053] The structural advantages of the textile yarn of this invention:

[0054] 1. Anisotropy: The mechanical properties of the three-dimensional hexagonal honeycomb structure vary significantly in different directions, i.e., it exhibits anisotropy. This means that the material's mechanical properties differ in different directions, resulting in superior mechanical properties in the vertical direction.

[0055] 2. High adaptability: Hexagonal structures can be designed and adjusted as needed to adapt to different mechanical performance requirements, such as by changing the size, thickness or material properties of the hexagon.

[0056] 3. High strength and lightweight: The hexagonal structure effectively disperses the forces applied to the material, allowing hexagonal fabrics to provide higher strength and stability for the same area and material usage. Simultaneously, due to the characteristics of the hexagonal structure, the material can be lightweight, which is particularly important for fields such as aerospace and military equipment.

[0057] 4. Vibration damping performance: The hexagonal structure can play a certain role in vibration damping, and has a good effect on reducing vibration and noise.

[0058] Example 2: This example is basically the same as Example 1, and the similarities will not be repeated. The difference is that: all the external gear rings on the rotating disks are connected together through a set of intermediate transition gears and are finally connected to the external gear ring drive motor; all the driven gears are connected together through another set of intermediate transition gears and are finally connected to the driven gear drive motor.

[0059] Example 3: This example is basically the same as Example 1, and the similarities will not be repeated. The difference is that the external gear ring and the transmission gear are not connected together through intermediate transition gears or transmission belts, but are connected to the drive motors separately. This scheme is suitable for small arrays.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications made based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A hexagonal honeycomb three-dimensional weaving device, comprising a weaving unit, characterized in that: The knitting units are arranged in a regular hexagonal shape to form a square array. Each knitting unit includes a support platform, a rotating disk, and a yarn carrier. The rotating disk is set on the support platform and the two rotate in conjunction. Three rotating gears and guide rails are evenly distributed along the circumference on the upper surface of the rotating disk. A slider is set on the guide rail and the slider is connected to the rotating gears through a connecting rod. The yarn carrier is connected to the guide rail through a guide rail groove. An external toothed ring is set on the lower surface of the rotating disk. A rotating shaft is provided at the center of the rotating disk, a central gear is provided at the upper end of the rotating shaft, the central gear meshes with three rotating gears simultaneously, and a driven gear is provided at the lower end of the rotating shaft. Both the external gear ring and the driven gear are connected to the drive motor to rotate separately and perform the weaving of the yarn. Weaving includes the following steps: (1) First, select the number of woven units as needed and arrange them in a formation. Then, connect the external gear ring and the driven gear to the drive motor respectively. Finally, start the drive motor. (2) Rotate the disc to drive the yarn carrier to rotate 240°, so that the yarn is knotted. During the rotation of the disc, the driven gear in the lower layer rotates at the same speed to ensure that the central gear and the disc are relatively stationary and to prevent the slider from being displaced. (3) The upper outer gear ring is stationary, and the lower driven gear continues to rotate 360°. The central gear drives the rotating gear to rotate, thereby driving the connecting rod to move. The connecting rod drives the slider to move outward and reach the maximum distance, pushing the yarn carrier into the slide rail on the adjacent rotating disc. (4) The rotating disk begins to rotate. At this time, the driven gear on the lower layer begins to rotate at the same speed, maintaining relative stillness with the rotating disk. The rotating disk stops again after rotating 240°. (5) The upper outer gear ring is stationary, and the lower driven gear continues to rotate 180°. Through the central gear and the driving gear, the connecting rod moves outward to the maximum distance, pushing the yarn carrier into the slide rail of the next rotating disc. (6) Repeat the above steps. When it is the sixth time, the yarn carrier returns to its original position. You can continue the above operation to complete the weaving.

2. The hexagonal honeycomb three-dimensional weaving device according to claim 1, characterized in that: All the external gear rings on the rotating disks are connected together by a set of transmission belts, and the outermost external gear ring is also connected to the external gear ring drive motor; all the driven gears are connected together by another set of transmission belts, and the outermost driven gear is also connected to the driven gear drive motor.

3. The hexagonal honeycomb three-dimensional weaving device according to claim 1, characterized in that: All the external gear rings on the rotating disks are connected together by a set of intermediate transition gears and are ultimately connected to the external gear ring drive motor; all the driven gears are connected together by another set of intermediate transition gears and are ultimately connected to the driven gear drive motor.

4. The hexagonal honeycomb three-dimensional weaving device according to claim 1, characterized in that: The support platform is a regular hexagon with a central stepped shaft hole on its upper end face. The rotating disk is located above the central stepped shaft hole, and the external toothed ring extends from the lower part of the central stepped shaft hole. A channel is provided on the upper wall of the central stepped shaft hole to facilitate the passage of the yarn carrier.

5. The hexagonal honeycomb three-dimensional weaving device according to claim 1, characterized in that: The end face of the guide rail is a T-shaped structure, the upper end of the yarn carrier is provided with a yarn post, and the lower end of the guide rail groove is also a T-shaped structure.

6. The hexagonal honeycomb three-dimensional weaving device according to claim 1, characterized in that: The support platform, rotating disk, and yarn carrier are all made of aluminum alloy or ABS engineering plastic, respectively, to reduce the friction of the slide rail during exchange.

7. The hexagonal honeycomb three-dimensional weaving device according to claim 1, characterized in that: The adjacent support platforms do not contact each other or the support platform and the rotating disk, but there is a gap between them. The gap is no greater than the width of the yarn carrier to prevent the yarn carrier from falling.

8. The hexagonal honeycomb three-dimensional weaving device according to claim 1, characterized in that: This structure consists of three yarns distributed 120° apart outside the central axis and spiraling 240° together. The yarns at the starting points are 120° apart. The yarns rotate 240° around the center of the disc, so the yarns at the ending points are 120° apart, thus forming a single structural unit.

9. A hexagonal honeycomb three-dimensional weaving device according to claim 1, characterized in that: After the yarn completes one unit, let's call the first unit the first layer. After the first layer is finished, the yarn carrier is pushed into the next wheel to start the second round of weaving. The wheel rotates 240° around the center. When the second round ends, the cylindrical shape is formed. In the overall structure, the arrangement of the yarns is considered as one layer for every 240-degree rotation of the yarn carrier. When weaving enters an odd-numbered layer, the yarn carrier is pushed back by the outer layer slider. At this time, the yarn carrier in the even-numbered outer layer does not move, so it presents a columnar shape.

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