Integrated imitation spider web structure profile warp-knitted net and preparation method thereof

Abstract

The application relates to an integrated spider-web-structure-shaped warp-knitted net and a preparation method thereof, and belongs to the technical field of structural bionic textile materials. The integrated spider-web-structure-shaped warp-knitted net comprises a center ring, a first weaving organization, a second weaving organization, a third weaving organization, an nth weaving organization, a first spiral line part, a second spiral line part and an mth spiral line part. The first weaving organization, the second weaving organization, the third weaving organization and the nth weaving organization are distributed along a radial direction, and the first spiral line part, the second spiral line part and the mth spiral line part are annularly distributed. The first spiral line part, the second spiral line part and the mth spiral line part are distributed from inside to outside along the radial direction. The first spiral line part, the second spiral line part and the mth spiral line part are connected with the first weaving organization, the second weaving organization, the third weaving organization and the nth weaving organization to form a spider-web structure. The application can once form the spider-web-structure-shaped warp-knitted net.

Description

Technical Field

[0001] This invention application belongs to the field of structural biomimetic textile materials technology, and specifically relates to an integrated spider web-like irregular warp-knitted mesh and its preparation method. Background Technology

[0002] The high strength, toughness, elasticity, and excellent water-collecting and adhesion properties of natural spider webs are inseparable from their unique geometric structure. Spider webs have distinct layers, composed of radial supports and interwoven filaments forming multiple small triangles or other stable geometric shapes. This structure can withstand predator impacts and environmental changes with minimal material consumption. In a spider web, the radial filaments form the skeleton, possessing high strength and moderate stiffness, while the spiral filaments exhibit greater elasticity. When a spider web is locally overloaded, the radial filaments undergo softening and large deformation followed by rapid nonlinear hardening, bearing the excessive load until they break, while the internal forces of the remaining filaments remain within a safe range, achieving localized and minimal damage. Therefore, spider web-like structural materials have broad application prospects.

[0003] Warp-knitted mesh fabrics are a classic type of textile structural material, formed by a repeating mesh structure in the warp or weft direction. Mesh shapes include rhombuses, rectangles, and hexagons. However, the unique radiating structure of a spider web—that is, the mesh gradually increasing in size from the center outwards—is difficult for current warp knitting machines to replicate. Existing spider web-like structural materials are constructed using methods such as hand-tying (CN102995289A), knot pasting and knot connection (CN116839770A, CN202282051U, CN218623359U), needle-sewing (CN107200148A), simple interlocking connection (CN112854154A), and 3D printing (CN118223570A, CN115618665B). These methods still have some problems and drawbacks: 1) Some... The preparation method requires precise processes and technologies, is difficult to operate, and requires strict control of various parameters. It faces limitations in terms of cost and feasibility when it is used for large-scale production and application. 2) It is challenging to manufacture complex spider web structures in one piece. The applicant has previously proposed a method for preparing high-performance warp-knitted webs with biomimetic spider web structures, but it does not consider the difference between spiral lines and radial lines, making it difficult to highly biomimeticly simulate the complex multi-layered structure of spider webs. 3) The mechanical properties and defect tolerance of spider web structure materials are neglected. The connection method at the nodes often leads to mechanical weaknesses, affecting the overall mechanical properties of the material.

[0004] Therefore, how to use effective methods to partially or completely overcome the problems or shortcomings in the existing technology is not only related to the optimization of the preparation process of spider web-like structural materials, but also directly affects the performance improvement and practical application value expansion of spider web-like structural materials, requiring breakthrough solutions for the preparation of spider web-like structures. Summary of the Invention

[0005] This invention application proposes an integrated, spiderweb-like structure irregular warp-knitted mesh and its preparation method, aiming to partially or completely solve the technical problems of existing spiderweb-like structure preparation methods, such as high operational difficulty, difficulty in highly biomimetic simulation of spiderweb structures, and weak mechanical properties at the nodes. This invention application can highly biomimeticly simulate spiderweb structures and integrate the preparation of an integrated, spiderweb-like structure irregular warp-knitted mesh, avoiding the weak mechanical properties of spiderweb-like structure materials. To achieve the above objectives, this invention adopts the following technical solution:

[0006] Firstly, a method for preparing an integrated, spiderweb-like irregularly shaped warp-knitted web includes:

[0007] Step S100: Using yarn as raw material, the yarn wound from the yarn frame passes through the tension adjustment mechanism and the yarn feeding mechanism and is fixed at the center of the winding mechanism; weaving the center loop: weaving n chain loops, after weaving the nth chain loop, the yarn is hooked out from the first loop to form the first loop of the 11th radial braiding part, and at the same time the first chain loop and the nth chain loop are connected end to end to form the center loop;

[0008] Step S200: Weave the 11th radial braid, the 12th radial braid, ..., the 1nth radial braid and the 1st spiral section. The 1st spiral section includes the 11th spiral, the 12th spiral, ..., the 1nth spiral. The 11th spiral connects the 11th radial braid and the 12th radial braid. The 12th spiral connects the 12th radial braid and the 13th radial braid. ..., the 1nth spiral connects the 1nth radial braid and the 11th radial braid.

[0009] Step S300: Weave the 21st radial braid, the 22nd radial braid, ..., the 2nth radial braid and the 2nd spiral section. The 2nd spiral section includes the 21st spiral, the 22nd spiral, ..., the 2nth spiral. The 21st spiral connects the 21st radial braid and the 22nd radial braid. The 22nd spiral connects the 22nd radial braid and the 23rd radial braid. ..., the 2nth spiral connects the 2nth radial braid and the 21st radial braid.

[0010] Step S400, and so on, weaving the n1st radial braid, the n2nd radial braid, ..., the mnth radial braid and the mth spiral section, the mth spiral section including the m1st spiral, the m2nd spiral, ..., the mnth spiral, the m1st spiral connecting the n1st radial braid and the n2nd radial braid, the m2nd spiral connecting the n2nd radial braid and the n3rd radial braid, ..., the mnth spiral connecting the mnth radial braid and the n1st radial braid;

[0011] In step S500, the first spiral section, the second spiral section, ..., the m-th spiral section are all arranged in a ring shape; the first spiral section, the second spiral section, ..., the m-th spiral section are distributed from the inside to the outside along the radial direction; the first spiral section, the second spiral section, ..., the m-th spiral section are all connected to the first braided structure, the second braided structure, the third braided structure, ..., the n-th braided structure to form a spider web-like irregular warp-knitted web.

[0012] Optionally, step S200 includes: step S201: weaving the 11th radial braid and leading out the 11th spiral, using the first loop of the 11th radial braid formed in step S100 as the starting loop, then weaving two more chain stitch loops; the clamping mechanism stretches the last chain stitch loop of the 11th radial braid, passing it through the lower take-up mechanism; at this time, through the left and right intersection of the take-up mechanism on the left and right support shafts, the woven fabric passes through the loop arc, and then the loop is tightened; the first segment of the spiral of the first turn is reserved according to the calculated length.

[0013] The yarn mechanism is rotated to guide the yarn along the spiral direction to the knitting needle at that length position, forming the 11th spiral.

[0014] Step S202: Knit the 12th radial knitting section and lead out the 12th spiral. The needle extends from the end position of the 11th spiral to pass through the yarn, forming the first chain loop. Then, the loop is pulled back onto the needle bar, and the yarn mechanism winds a round of yarn onto the needle bar. Subsequently, the needle extends further, with the first loop and the wound yarn on the needle bar at the same time. The needle tip passes through the second loop of the center loop and hooks out the yarn. At this time, there is one yarn inside the needle and two loops on the needle bar. The yarn inside the needle is pulled out from the loop of the wound yarn, thus forming the first compound structure loop. The knitting action with yarn is repeated once more to form the second compound structure loop. At this time, one loop is left in the needle. The clamping mechanism stretches the loop so that the knitted fabric passes through the loop, and then the loop is tightened. The yarn mechanism is rotated to guide the yarn along the spiral direction to the needle at this length position, thus forming the 12th spiral.

[0015] Step S203: Continue in this manner, weaving the 1nth radial braid and leading out the 1nth spiral;

[0016] Step S204: At the end of the 1n spiral, the needle extends out of the knitting loop and connects with the last loop of the 11th radial knitting section, connecting the 1n radial knitting section and the 11th radial knitting section to form the first loop of the 21st radial knitting section, thus completing the first round of knitting.

[0017] Optionally, step S300 includes: Step S301: Weaving the 21st radial weaving section and leading out the 21st spiral, taking the first loop of the 21st radial weaving section formed in step S204 as the starting loop, weaving two more chain stitch loops, the clamping mechanism stretches the last chain stitch loop of the 21st radial weaving section and passes it through the take-up mechanism below. At this time, the take-up mechanism intersects left and right on the left and right support shafts, finally allowing the woven fabric to pass through the loop arc, and then tightening the loop; according to the calculated length, the first segment of the second loop is reserved, and the yarn mechanism is rotated to guide the yarn along the spiral direction to the knitting needle at this length position to form the 21st spiral;

[0018] Step S302: Knit the 22nd radial knit section and lead out the 22nd spiral. The needle extends from the end position of the 21st spiral to pass through the yarn, forming the first chain loop. Then, the loop is pulled back onto the needle bar, and the yarn mechanism winds a round of yarn onto the needle bar. Subsequently, the needle extends further, with the first loop and the wound yarn on the needle bar at the same time. The needle tip passes through the last loop of the 12th radial knit section of the first loop and hooks out the yarn. At this time, there is one yarn inside the needle and two loops on the needle bar. The yarn inside the needle is pulled out from the loops of the wound yarn, thus forming the first compound structure loop. The knitting action with yarn is repeated once more to form the second compound structure loop. At this time, one loop is left in the needle. The clamping mechanism stretches the loop so that the knitted fabric passes through the loop, and then the loop is tightened. The yarn mechanism is rotated to guide the yarn along the spiral direction to the needle at this length position, thus forming the 22nd spiral.

[0019] Step S303: Continue in this manner, weaving the 2nth radial braid and leading out the 2nth spiral;

[0020] Step S304: At the end of the 2n spiral, the needle extends out of the knitting loop and connects with the last loop of the 21st radial knitting section, connecting the 2n radial knitting section and the 21st radial knitting section to form the first loop of the 31st radial knitting section, thus completing the second round of knitting.

[0021] Optionally, in step S500, the 11th radial braid, the 21st radial braid, ..., the i1th radial braid, ..., the m1st radial braid are sequentially connected to form the first braided structure; the 12th radial braid, the 22nd radial braid, ..., the i2th radial braid, ..., the m2th radial braid are sequentially connected to form the second braided structure, ..., the 1nth radial braid, the 2nth radial braid, ..., the inth radial braid, ..., the mnth radial braid are sequentially connected to form the nth braided structure.

[0022] Secondly, an integrated spiderweb-like irregular warp-knitted mesh is prepared using any of the methods described in the first aspect.

[0023] Optionally, the integrated spiderweb-like irregular warp-knitted mesh includes: a central loop, a first weave, a second weave, a third weave, ..., an nth weave, a first spiral section, a second spiral section, ..., an mth spiral section; the first, second, third, ..., nth weaves are all distributed radially, and the first, second, ..., mth spiral sections are all arranged in a ring; the first, second, ..., mth spiral sections are distributed radially from the inside out; the first, second, ..., mth spiral sections are all connected to the first, second, third, ..., nth weaves to form a spiderweb-like structure.

[0024] Optionally, the first knitting structure includes an 11th radial knitting section, a 21st radial knitting section, ..., an i1th radial knitting section, ..., a m1th radial knitting section; the 11th radial knitting section, the 21st radial knitting section, ..., an i1th radial knitting section, ..., a m1th radial knitting section are connected sequentially; the second knitting structure includes a 12th radial knitting section, a 22nd radial knitting section, ..., an i2th radial knitting section, ..., a m2th radial knitting section; the 12th radial knitting section, the 22nd radial knitting section, ..., an i2th radial knitting section, ..., a m2th radial knitting section are connected sequentially; the nth knitting structure includes an nth radial knitting section, a nth radial knitting section, ..., an inth radial knitting section, ..., a mnth radial knitting section, an nth radial knitting section, an nth radial knitting section, ..., a mnth radial knitting section are connected sequentially.

[0025] Optionally, the first helix portion includes the 11th helix, the 12th helix, ..., the 1nth helix; the second helix portion includes the 21st helix, the 22nd helix, ..., the 2nth helix, ...; the jth helix portion includes the j1st helix, the j2nd helix, ..., the jnth helix, ...; and the mth helix portion includes the m1st helix, the m2nd helix, ..., the mnth helix.

[0026] The beneficial effects achieved by this invention application are as follows:

[0027] (1) In this invention application, a step-by-step weaving method is adopted. Through the gradual construction of the warp thread, radial weaving part and spiral thread part, the integrated molding of the spider web structure irregular warp knitted net is realized, which simplifies the traditional multi-step processing process. It fully considers the differences in structure and performance between the spiral thread part and the weaving structure in the spider web, and can produce a highly biomimetic spider web structure irregular warp knitted net, reducing the difficulty and manufacturing cost of preparing the spider web structure irregular warp knitted net;

[0028] (2) In this invention application, the spider web-like structure is composed of a central loop, a radial braided section and a spiral section. The interlacing design of the radial braided section and the spiral section simulates the mechanical properties of a spider web, forming a mechanical distribution similar to that of a natural spider web. The radial braided section serves as a supporting skeleton, providing strong tensile strength. The spiral section can disperse external forces and avoid local damage, thus ensuring the overall mechanical properties of the irregular warp-knitted web of the spider web-like structure.

[0029] (3) In this invention application, by adjusting the number and arrangement of the radial braiding part and the spiral part, a multi-level and multi-scale structural design can be formed. Different sizes and functions of the spider web structure can be flexibly customized to meet diverse needs. It provides a new solution for the preparation of irregular warp knitted webs with spider web structure, showing good technical value and application prospects. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a flowchart illustrating steps S100 to S300 in the method for preparing an integrated spiderweb-like irregular warp-knitted mesh according to the present invention.

[0032] Figure 2 This is a flowchart illustrating steps S400 to S500 in the method for preparing an integrated spiderweb-like irregular warp-knitted mesh according to the present invention.

[0033] Figure 3 This is a schematic diagram of the integrated spider web-like irregular warp-knitted web preparation device of the present invention.

[0034] Figure 4 This is a schematic diagram of the structure of the coil center loop C0 of this invention (taking n=8 as an example);

[0035] Figure 5 This is a schematic diagram illustrating the principle of step S202 in this invention application;

[0036] Figure 6 This is a schematic diagram of the integrated spiderweb-like irregular warp-knitted mesh of the present invention. Figure 1 (Taking n=8, m=4 as an example);

[0037] Figure 7 This is a schematic diagram of the integrated spiderweb-like irregular warp-knitted mesh of the present invention. Figure 2 (Taking n=8, m=4 as an example);

[0038] Figure 8 This is a schematic diagram illustrating the fabrication principle of the integrated spiderweb-like irregular warp-knitted mesh of this invention (taking n=8, m=4 as an example);

[0039] Figure 9 This is a physical schematic diagram of the integrated spider web-like irregular warp-knitted mesh of the present invention (taking n=8, m=4 as an example);

[0040] Figure 10 Tensile test and sample image of the woven structure of the integrated spider web-like irregular warp-knitted mesh of this invention application;

[0041] Figure 11 Stress-strain diagrams of tensile tests on aramid yarns of different thicknesses with different braided structures, as per this invention application;

[0042] Figure 12 The tensile stress-strain diagrams of composite and chain-knitted structures in an integrated spiderweb-like irregular warp-knitted web of the same specification as the present invention application are shown.

[0043] Figure 13 This is a schematic diagram of the overall tensile test of an integrated spider web-like irregular warp-knitted mesh of the same specification as claimed in this invention, with the knitting structure clamping directions being X and I types, respectively.

[0044] Figure 14 Stress-strain diagrams of an integrated spiderweb-like irregular warp-knitted mesh of the same specification as claimed in this invention, under X and I type integral tensile tests.

[0045] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0047] In the description of this invention application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention application. "Comprising" can at least be understood as including only. To make the objectives, technical solutions, and advantages of this invention application clearer, the embodiments of this invention application will be further described in detail below with reference to the accompanying drawings.

[0048] Description of the preparation method of integrated spider web-like irregular warp-knitted mesh

[0049] like Figures 1 to 9 As shown, a method for preparing an integrated spiderweb-like irregular warp-knitted web includes:

[0050] In some embodiments, a method for preparing an integrated cobweb-like irregular warp-knitted web may include an integrated cobweb-like irregular warp-knitting device. The integrated cobweb-like irregular warp-knitting device may include: a yarn frame 1, a tension adjustment mechanism 2, a yarn feeding mechanism 3, a weaving mechanism 4, a take-up mechanism 5, a support shaft 6, a slide rail 7, a support base 8, and a clamping mechanism 9. The tension adjustment mechanism 2 and the yarn feeding mechanism 3 are connected to the yarn frame 1. The weaving mechanism 4 is mounted on the support base 8. The take-up mechanism 5, the support shaft 6, the slide rail 9, and the clamping mechanism 9 are disposed within the support base 8. The yarn wound from the yarn frame 1 passes through the tension adjustment mechanism 1. The adjusting mechanism 2 and the yarn feeding mechanism 3 are fixed at the center of the winding mechanism 5. There are two support shafts 6, namely the left support shaft 6 and the right support shaft 6. Both the left support shaft 6 and the right support shaft 6 can slide on the slide rail 7 through the driving device. The left support shaft 6 moves the winding mechanism 5 to the right support shaft 6, or the right support shaft 6 moves the winding mechanism 5 to the edge support shaft 6, thereby realizing the left and right hand-to-right hand-to-hand transfer of the winding mechanism 5, so that the woven fabric B in the subsequent steps S200 and S300 can pass through the loop.

[0051] In some embodiments, the winding mechanism 5 is mounted on the left support shaft 6. The left support shaft 6 can be locked with a conventional locking mechanism, allowing the left support shaft 6 to slide on the slide rail 7, thereby moving the winding mechanism 5 to the right support shaft 6. At this point, the winding mechanism 5 is unlocked by the conventional locking mechanism, and the right support shaft 6 can be locked with a conventional locking component. Alternatively, the winding mechanism 5 is mounted on the right support shaft 6. The right support shaft 6 can be locked with a conventional locking component, allowing the right support shaft 6 to slide on the slide rail 7, thereby moving the winding mechanism 5 to the left support shaft 6. At this point, the winding mechanism 5 is unlocked by the conventional locking component, and the left support shaft 6 can be locked with a conventional locking mechanism. This allows for the left and right transfer of the winding mechanism 5 on the left and right support shafts 6. This application of the present invention does not impose any particular limitation on this method.

[0052] In some embodiments, the locking mechanism and locking component can be conventional locking pins, conventional spring locking rods, etc., in the existing mechanical locking technology field. The locking mechanism and locking component can lock the inner wall of the winding mechanism 5, thereby not affecting the rotation of the outer drum of the winding mechanism 5. This application does not impose any particular limitation on this.

[0053] In some embodiments, the clamping mechanism may include a conventional multi-degree-of-freedom robotic arm with grippers. The weaving mechanism 4 can weave yarn to form coils for forming an integrated, spiderweb-like irregular warp-knitted web, etc. This application does not impose any particular limitation on this.

[0054] Step S100: Using yarn as raw material, the yarn wound from the yarn frame 1 passes through the tension adjustment mechanism 2 and the yarn feeding mechanism 3, and is fixed at the center of the take-up mechanism 5. The center loop C0 is woven: n chain loops are woven. After the nth chain loop is woven, the yarn is hooked out from the first loop to form the first loop of the 11th radial braiding part. At the same time, the first chain loop and the nth chain loop are connected end to end to form the center loop C0.

[0055] In some embodiments, the yarn may be made of aramid yarn or other raw materials. Those skilled in the art may also select other textile raw materials, and this application does not impose any particular restrictions on this.

[0056] Step S200: Weave the 11th radial braid, the 12th radial braid, ..., the 1nth radial braid and the 1st spiral section. The 1st spiral section includes the 11th spiral, the 12th spiral, ..., the 1nth spiral. The 11th spiral connects the 11th radial braid and the 12th radial braid. The 12th spiral connects the 12th radial braid and the 13th radial braid. ..., the 1nth spiral connects the 1nth radial braid and the 11th radial braid.

[0057] Specifically, step S200 includes:

[0058] Step S201: Weave the 11th radial weave section r11 and lead out the 11th spiral c11. Using the first loop of the 11th radial weave section formed in step S100 as the starting loop, weave two more chain stitch loops. The clamping mechanism 9 stretches the last chain stitch loop of the 11th radial weave section and passes it through the take-up mechanism 5 below. Through the left and right intersection of the take-up mechanism 5 on the left and right support shafts 6 and 6, the woven fabric B passes through the loop arc and the loop is tightened. According to the calculated length, the first segment of the first spiral of the first loop is reserved. The yarn mechanism 3 is rotated to guide the yarn along the spiral direction to the needle at the length position to form the 11th spiral c11.

[0059] Step S202: Knit the 12th radial knitting section r12 and lead out the 12th spiral c12. The needle extends from the end position of the 11th spiral c11 to pass through the yarn, forming the first chain loop. Then, the loop is pulled back onto the needle bar, and the yarn mechanism 3 winds a turn of yarn around the needle bar. Subsequently, the needle extends further, with the first loop and the wound yarn on the needle bar at the same time. The needle tip passes through the second loop of the center loop C0 and hooks out the yarn. At this time, there is one yarn inside the needle and two loops on the needle bar. The yarn inside the needle is pulled out from the loop of the wound yarn, thus forming the first composite structure loop. The knitting action with yarn is repeated once more to form the second composite structure loop. At this time, one loop is left in the needle. The clamping mechanism 9 stretches the loop so that the knitted fabric passes through the loop, and then tightens the loop. The yarn mechanism 3 rotates to guide the yarn along the spiral direction to the needle at this length position, thus forming the 12th spiral c12.

[0060] Step S203: Similarly, weave the nth radial braid r1 n and derive the nth spiral c1 n;

[0061] Step S204: At the end of the 1n spiral c1 n, the knitting needle extends out of the knitting loop and connects with the last loop of the 11th radial knitting section r11, connecting the 1n radial knitting section and the 11th radial knitting section, and forming the first loop of the 21st radial knitting section, thus completing the first round of C1 knitting.

[0062] Step S300: Weave the 21st radial braid, the 22nd radial braid, ..., the 2nth radial braid and the 2nd spiral section. The 2nd spiral section includes the 21st spiral, the 22nd spiral, ..., the 2nth spiral. The 21st spiral connects the 21st radial braid and the 22nd radial braid. The 22nd spiral connects the 22nd radial braid and the 23rd radial braid. ..., the 2nth spiral connects the 2nth radial braid and the 21st radial braid.

[0063] Specifically, step S300 includes:

[0064] Step S301: Weave the 21st radial weave section r21 and lead out the 21st spiral line c21. Using the first loop of the 21st radial weave section formed at the end of step S204 as the starting loop, weave two more chain stitch loops. The clamping mechanism 9 stretches the last chain stitch loop of the 21st radial weave section and passes it through the take-up mechanism 5 below. At this time, the take-up mechanism 5 intersects left and right on the support shaft 6 on the left and right sides, so that the woven fabric passes through the loop arc and the loop is tightened. According to the calculated length, the first segment of the spiral line of the second loop is reserved. The yarn mechanism 3 is rotated to guide the yarn along the spiral direction to the needle at this length position, forming the 21st spiral line c21.

[0065] Step S302: Knit the 22nd radial knitting section r22 and lead out the 22nd spiral c22. The needle extends from the end position of the 21st spiral c21 to pass the yarn, forming the first chain loop. Then, the loop is pulled back onto the needle bar, and the yarn mechanism winds a turn of yarn onto the needle bar. Subsequently, the needle extends further, with the first loop and the wound yarn on the needle bar at the same time. The needle tip passes through the last loop of the 12th radial knitting section r12 of the first loop C1 and hooks out the yarn. At this time, there is one yarn inside the needle and two loops on the needle bar. The yarn inside the needle is pulled out from the loops of the wound yarn, thus forming the first composite structure loop. The knitting action with yarn is repeated once more to form the second composite structure loop. At this time, one loop is left in the needle. The clamping mechanism 9 stretches the loop so that the knitted fabric passes through the loop, and then tightens the loop. The yarn mechanism 3 rotates to guide the yarn along the spiral direction to the needle at this length position, thus forming the 22nd spiral c22.

[0066] Step S303: Similarly, weave the 2nth radial braid r2n and derive the 2nth spiral c2n;

[0067] Step S304: At the end of the 2n spiral c2n, the needle extends out to knit the loop and connects with the last loop of the 21st radial knitting section r21, connecting the 2n radial knitting section and the 21st radial knitting section to form the first loop of the 31st radial knitting section, thus completing the second round of C2 knitting.

[0068] Step S400, and so on, weaving the n1st radial braid, the n2nd radial braid, ..., the mnth radial braid and the mth spiral section, the mth spiral section including the m1st spiral, the m2nd spiral, ..., the mnth spiral, the m1st spiral connecting the n1st radial braid and the n2nd radial braid, the m2nd spiral connecting the n2nd radial braid and the n3rd radial braid, ..., the mnth spiral connecting the mnth radial braid and the n1st radial braid;

[0069] In step S500, the first spiral section, the second spiral section, ..., the m-th spiral section are all arranged in a ring shape; the first spiral section, the second spiral section, ..., the m-th spiral section are distributed from the inside to the outside along the radial direction; the first spiral section, the second spiral section, ..., the m-th spiral section are all connected to the first braiding structure r1, the second braiding structure r2, the third braiding structure r3, ..., the n-th braiding structure rn to form a spider web-like irregular warp-knitted web.

[0070] In some embodiments, in step S500, the first helical portion includes the 11th helix, the 12th helix, ..., the 1nth helix; the second helical portion includes the 21st helix, the 22nd helix, ..., the 2nth helix, ...; the jth helical portion includes the j1st helix, the j2nd helix, ..., the jnth helix, ...; and the mth helical portion includes the m1st helix, the m2nd helix, ..., the mnth helix.

[0071] In this invention application, firstly, a step-by-step weaving method is adopted. Through the gradual construction of warp threads, radial weaving sections, and spiral sections, an integrated molding of a spider web-like irregular warp-knitted mesh is achieved. This simplifies the traditional multi-step processing flow and reduces the difficulty and manufacturing cost of preparing the spider web-like irregular warp-knitted mesh. Secondly, the spider web-like structure consists of a central loop, radial weaving sections, and spiral sections. The interlacing design of the radial weaving sections and spiral sections simulates the mechanical properties of a spider web, forming a mechanical distribution similar to a natural spider web. The radial weaving sections act as a supporting skeleton, providing strong tensile strength. The spiral sections can disperse external forces, avoiding local damage and ensuring the overall mechanical properties of the spider web-like irregular warp-knitted mesh. Furthermore, by adjusting the number and arrangement of the radial weaving sections and spiral sections, a multi-layered and multi-scale structural design can be formed. Different sizes and functions of spider web-like structures can be flexibly customized to meet diverse needs. This provides a novel solution for preparing spider web-like irregular warp-knitted meshes, demonstrating good technical value and application prospects.

[0072] Optionally, in step S500, the 11th radial braid, the 21st radial braid, ..., the i1th radial braid, ..., the m1st radial braid are sequentially connected to form the first braided structure r1; the 12th radial braid, the 22nd radial braid, ..., the i2th radial braid, ..., the m2th radial braid are sequentially connected to form the second braided structure r2, ..., the 1nth radial braid, the 2nth radial braid, ..., the inth radial braid, ..., the mnth radial braid are sequentially connected to form the nth braided structure rn.

[0073] In this invention application, firstly, multiple radial braided sections (such as the 11th radial braided section, the 12th radial braided section, etc.) are sequentially connected to form braided structures (such as r1, r2, ..., rn). The orderly connection of the radial braided sections achieves a highly latticed spiderweb structure. Each braided structure acts as an independent unit. When subjected to impact or vibration, this design can effectively disperse energy throughout the entire structure, avoiding localized damage. It can effectively disperse external forces and uniformly transmit stress, thereby significantly improving the tensile strength and stability of the overall structure. In addition, the first braided structure r1 can be a chain braided structure, the second braided structure r2, the third braided structure r3, ..., the nth braided structure rn can all be composite structures. The radial braided sections can be divided into different braided structures, and the number, arrangement, and size of each braided structure can be flexibly adjusted according to actual needs. This flexibility allows the spiderweb-like structure to adapt to various application scenarios. Each braided structure can be uniformly distributed in space, avoiding stress concentration problems caused by localized deformation or asymmetry.

[0074] Description of integrated spider web-like irregular warp-knitted mesh

[0075] like Figures 6 to 9 As shown, the integrated spiderweb-like irregular warp-knitted mesh is prepared using any of the methods described in the first aspect.

[0076] It should be noted that the integrated cobweb-like irregular warp-knitted mesh of this invention can be prepared using or without any of the integrated cobweb-like irregular warp-knitted mesh preparation methods described in the first aspect. When prepared using any of the integrated cobweb-like irregular warp-knitted mesh preparation methods described in the first aspect, it also includes all the technical problems, technical solutions, and technical effects described in any of the integrated cobweb-like irregular warp-knitted mesh preparation methods described in the first aspect, which will not be repeated here.

[0077] Optionally, the integrated spiderweb-like irregular warp-knitted mesh includes: a central loop, a first weave r1, a second weave r2, a third weave r3, ..., an nth weave rn, a first spiral section, a second spiral section, ..., an mth spiral section; the first weave r1, the second weave r2, the third weave r3, ..., the nth weave rn are all distributed radially, and the first spiral section, the second spiral section, ..., the mth spiral section are all arranged in a ring; the first spiral section, the second spiral section, ..., the mth spiral section are distributed from the inside to the outside along the radial direction; the first spiral section, the second spiral section, ..., the mth spiral section are all connected to the first weave r1, the second weave r2, the third weave r3, ..., the nth weave rn to form a spiderweb-like structure.

[0078] In this invention application, firstly, through the synergistic effect of radially distributed braided structures (r1, r2, ..., rn) and annularly distributed spiral sections, a highly biomimetic mechanical structure of a natural spider web is formed. The spiral sections are arranged sequentially from the inside out, connecting each braided structure. The radial braided structures provide high-strength support, while the spiral sections act as buffers and disperses external forces, ensuring the overall mechanical performance of the irregularly shaped warp-knitted web with a spider web-like structure. In addition, the number, size, and distribution of the braided structures and spiral sections can be flexibly adjusted, allowing for the customization of spider web-like structures of different sizes and functions to meet the needs of different application scenarios. Furthermore, the use of integrated molding technology reduces traditional multi-step processing steps, improves production efficiency, reduces manufacturing costs, and ensures consistent product quality.

[0079] Optionally, the first knitting structure r1 includes an 11th radial knitting portion, a 21st radial knitting portion, ..., an i1th radial knitting portion, ..., an m1th radial knitting portion; the 11th radial knitting portion, the 21st radial knitting portion, ..., an i1th radial knitting portion, ..., an m1th radial knitting portion are connected in sequence; the second knitting structure r2 includes a 12th radial knitting portion, a 22nd radial knitting portion, ..., an i2th radial knitting portion, ..., an m2th radial knitting portion; the 12th radial knitting portion, the 22nd radial knitting portion, ..., an i2th radial knitting portion, ..., an m2th radial knitting portion are connected in sequence; ... the nth knitting structure rn includes an nth radial knitting portion, a nth radial knitting portion, ..., an inth radial knitting portion, ..., an mnth radial knitting portion, an nth radial knitting portion, an nth radial knitting portion, ..., an mnth radial knitting portion are connected in sequence.

[0080] In this invention application, multiple radial braided portions (such as the 11th radial braided portion, the 12th radial braided portion, etc.) are sequentially connected to form a braided structure (such as r1, r2, ..., rn). The orderly connection of the radial braided portions realizes a highly biomimetic spider web structure. Each braided structure can be used as an independent unit. When subjected to impact or vibration, this design can effectively disperse energy throughout the entire structure, avoid local damage, effectively disperse external forces and transfer stress, thereby significantly improving the tensile strength and stability of the overall structure.

[0081] Optionally, the first helix portion includes the 11th helix, the 12th helix, ..., the 1nth helix; the second helix portion includes the 21st helix, the 22nd helix, ..., the 2nth helix, ...; the jth helix portion includes the j1st helix, the j2nd helix, ..., the jnth helix, ...; and the mth helix portion includes the m1st helix, the m2nd helix, ..., the mnth helix.

[0082] In this invention application, the subdivided design of the spiral section allows the structure to flexibly adjust the number, length, and distribution density of the spirals according to actual needs, thereby achieving a highly biomimetic spider web structure. Each spiral (such as the 11th spiral, the 12th spiral, etc.) independently bears local stress, and through reasonable arrangement and connection, the overall force is dispersed, effectively avoiding stress concentration. When subjected to external forces, it can effectively buffer and disperse energy, extend service life, and reduce the risk of damage. This not only improves the performance of the spider web-like structure but also provides technical support for its diversified applications.

[0083] Mechanical testing description of an integrated spiderweb-like irregular warp-knitted mesh

[0084] like Figure 10 , Figure 11 As shown, tensile and overall tensile tests were conducted on the woven portion and the entire warp-knitted mesh with a spiderweb-like structure using a universal testing machine (MTS). The clamping speeds were 50 mm / min and 100 mm / min, respectively. The woven portion was cut from the warp-knitted mesh, with sufficiently long spirals retained at both ends to prevent the coils from unraveling. The tensile strength of the woven structure was positively correlated with the yarn fineness (e.g., 600D, 1200D, 1800D aramid yarn). It can be seen that the thicker the yarn, the smaller the fluctuation of the tensile fracture curve of the woven structure.

[0085] like Figure 12 As shown, the first weave structure r1 can be a chain braid, and the second weave structure r2, the third weave structure r3, ..., the nth weave structure rn can all be composite structures. The breaking strength of the yarns (e.g., 1800D aramid yarn) of the composite structure (one of the second weave structure r2, the third weave structure r3, ..., the nth weave structure rn) and the chain braid structure (e.g., the first weave structure r1) is not significantly different. The difference lies in that the composite structure will spin during the stretching process because the yarn twist generated during the weave process is untied until the yarn breaks. At the same time, the breaking process of the chain braid structure is divided into several stages because the coil deformation is more complex and the disintegration process of the yarn after breakage is longer.

[0086] like Figure 13 , Figure 14 As shown, the overall tensile test was conducted with the specimen clamped in the "X" and "I" directions. The results indicate that, due to the radial shape of the woven structure in the integrated spiderweb-like irregular warp-knitted web, the fracture time of each woven strand differs during the tensile process, resulting in significant fluctuations in the curve throughout the process. The tensile performance in different directions primarily depends on the number of yarns under stress. When the clamping direction is "X," the woven structure experiences a larger stress proportion, leading to higher tensile strength.

[0087] The accompanying drawings are merely one embodiment of this invention, and the actual structure is not limited to this. In conclusion, if those skilled in the art, inspired by these drawings, design similar structures and embodiments without departing from the spirit of this invention, such designs should fall within the scope of protection of this invention.

Claims

1. A method for preparing an integrated, spider-web-structure-shaped warp-knitted net, characterized in that, Comprise: Step S100, using yarn as raw material, the yarn from the creel is wound through the tension adjusting mechanism and the yarn feeding mechanism to the center of the take-up mechanism; weave the center circle: weave n chain stitches, after weaving the nth chain stitch, hook the yarn from the first stitch to form the first stitch of the 11th radial weaving part, and the first chain stitch and the nth chain stitch are connected end to end to form the loop center circle; Step S200, weave the 11th radial weaving part, the 12th radial weaving part,..., the 1n radial weaving part and the 1st spiral line part, the 1st spiral line part includes the 11th spiral line, the 12th spiral line,..., the 1n spiral line, the 11th spiral line connects the 11th radial weaving part, the 12th radial weaving part, the 12th spiral line connects the 12th radial weaving part, the 13th radial weaving part,..., the 1n spiral line connects the 1n radial weaving part, the 11th radial weaving part; Step S300, weave the 21st radial weaving part, the 22nd radial weaving part,..., the 2n radial weaving part and the 2nd spiral line part, the 2nd spiral line part includes the 21st spiral line, the 22nd spiral line,..., the 2n spiral line, the 21st spiral line connects the 21st radial weaving part, the 22nd radial weaving part, the 22nd spiral line connects the 22nd radial weaving part, the 23rd radial weaving part,..., the 2n spiral line connects the 2n radial weaving part, the 21st radial weaving part; Step S400, by analogy, weave the n1st radial weaving part, the n2nd radial weaving part,..., the mnth radial weaving part and the mth spiral line part, the mth spiral line part includes the m1st spiral line, the m2nd spiral line,..., the mnth spiral line, the m1st spiral line connects the n1st radial weaving part, the n2nd radial weaving part, the m2nd spiral line connects the n2nd radial weaving part, the n3rd radial weaving part,..., the mnth spiral line connects the mnth radial weaving part, the n1st radial weaving part; Step S500, the 1st spiral line part, the 2nd spiral line part,..., the mth spiral line part are annularly distributed; the 1st spiral line part, the 2nd spiral line part,..., the mth spiral line part are distributed from inside to outside along the radial direction; the 1st spiral line part, the 2nd spiral line part,..., the mth spiral line part are connected to the 1st weaving organization, the 2nd weaving organization, the 3rd weaving organization,..., the n weaving organization to form a spider web structure shaped warp knitting net.

2. The method of claim 1, wherein the method further comprises the steps of: Step S200 comprises: ​ Step S201: weave the 11th radial weaving part and lead out the 11th spiral line, take the first stitch of the 11th radial weaving part formed in step S100 as the starting stitch, weave another 2 chain stitches, the clamping mechanism pulls the last chain stitch of the 11th radial weaving part to pass through the lower take-up mechanism, at this time, the woven fabric passes through the loop arc through the left and right intersection of the left support shaft and the right support shaft on the take-up mechanism, and then the loop is tightened; according to the calculated length, reserve the first segment of the first spiral line, rotate the yarn feeding mechanism to lead the yarn to the needle at the length position in the spiral direction to form the 11th spiral line; Step S202: weaving the 12th radial weaving part and leading out the 12th spiral line, the needle is stretched out to weave the loop at the end position of the 11th spiral line, and the first stitch loop is formed; then, the loop is withdrawn to the needle bar, the yarn mechanism is wound around the needle bar, and the needle is further stretched out, the needle bar is simultaneously provided with the first loop and the wound yarn, the needle tip penetrates into the second loop of the center loop and hooks out the yarn; at this time, there is one yarn in the needle, and there are two loop arcs on the needle bar; the yarn in the needle is withdrawn from the loop arc of the wound yarn, that is, the first compound stitch loop is formed; the yarn is wound around the needle bar again, and the second compound stitch loop is formed; at this time, one loop is retained in the needle, the clamping mechanism is used to lengthen the loop, the woven fabric is passed through the loop arc, and the loop is tightened; the yarn mechanism is rotated, and the yarn is guided to the needle at the length position in the spiral direction, that is, the 12th spiral line is formed; Step S203: in turn, the 1nth radial weaving part and the 1nth spiral line are woven; Step S204: at the end of the 1nth spiral line, the needle is stretched out to weave the loop, and the last loop of the 11th radial weaving part is connected, the 1nth radial weaving part and the 11th radial weaving part are connected, the first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part is formed. The first loop of the 21st radial weaving part is formed, and the first loop of the 21st radial weaving part 3. The method of claim 2, wherein the method further comprises the step of: ​ ​ ​ ​ Step S304: At the end of the 2n spiral line, the knitting needle extends the knitted loop, connects the last loop of the 21 radial knitting part, connects the 2n radial knitting part and the 21 radial knitting part, and forms the 1st loop of the 31 radial knitting part, thus completing the second round of knitting.

4. The method for preparing an integrated spiderweb-like irregular warp-knitted mesh according to claim 1, characterized in that, In step S500, the 11th radial knitting part, the 21st radial knitting part, the i 1st radial knitting part, the m 1st radial knitting part are sequentially connected to form the 1st knitting organization; the 12th radial knitting part, the 22nd radial knitting part, the i 2nd radial knitting part, the m 2nd radial knitting part are sequentially connected to form the 2nd knitting organization, the 1n radial knitting part, the 2n radial knitting part, the in radial knitting part, the mn radial knitting part are sequentially connected to form the n knitting organization.

5. An integrated irregular trapezoidal spider web structure warp knitting net prepared by the method of any one of claims 1-4.

6. The integrated, biomimetic spider-web-structured shaped warp mesh of claim 5, wherein, The integrated irregular trapezoidal spider web structure warp knitting net comprises a center ring, a 1st knitting organization, a 2nd knitting organization, a 3rd knitting organization,..., a n knitting organization, a 1st spiral line part, a 2nd spiral line part,..., a m spiral line part; the 1st knitting organization, the 2nd knitting organization, the 3rd knitting organization,..., the n knitting organization are distributed along the radial direction, the 1st spiral line part, the 2nd spiral line part,..., the m spiral line part are annularly distributed; the 1st spiral line part, the 2nd spiral line part,..., the m spiral line part are distributed from inside to outside along the radial direction; the 1st spiral line part, the 2nd spiral line part,..., the m spiral line part are connected to the 1st knitting organization, the 2nd knitting organization, the 3rd knitting organization,..., the n knitting organization to form a spider web structure.

7. An integrated, biomimetic spider-web-structured shaped warp mesh according to claim 6, characterized in that, The 1st knitting organization comprises the 11th radial knitting part, the 21st radial knitting part, the i 1st radial knitting part, the m 1st radial knitting part; the 11th radial knitting part, the 21st radial knitting part, the i 1st radial knitting part, the m 1st radial knitting part are sequentially connected; the 2nd knitting organization comprises the 12th radial knitting part, the 22nd radial knitting part, the i 2nd radial knitting part, the m 2nd radial knitting part; the 12th radial knitting part, the 22nd radial knitting part, the i 2nd radial knitting part, the m 2nd radial knitting part are sequentially connected,..., the n knitting organization comprises the 1n radial knitting part, the 2n radial knitting part, the in radial knitting part, the mn radial knitting part, the 1n radial knitting part, the 2n radial knitting part, the in radial knitting part, the mn radial knitting part are sequentially connected.

8. The integrated, biomimetic spider-web-structured shaped warp mesh of claim 7, wherein, The first spiral line portion includes a first 11th spiral line, a first 12th spiral line,..., a first n-th spiral line, the second spiral line portion includes a second 21th spiral line, a second 22th spiral line,..., a second n-th spiral line,..., the j-th spiral line portion includes a j-th 1st spiral line, a j-th 2nd spiral line,..., a j-th n-th spiral line,..., the m-th spiral line portion includes a m-th 1st spiral line, a m-th 2nd spiral line,..., a m-th n-th spiral line.

Images