Honeycomb core material with multiple layers of walls

Abstract

The utility model discloses a honeycomb core material with multiple layers of walls, which comprises first material layers, second material layers, third material layers and fourth material layers, the plurality of first material layers are laminated and bonded up and down to form a first part with a plurality of half regular hexagonal hole grids; second adhesive tapes for bonding are arranged between every two of the multiple second material layers; the plurality of second material layers are laminated and bonded up and down to form a second part with the other half of regular hexagonal hole grids; the first part and the second part are vertically spliced and bonded to form a honeycomb core body with multiple layers of walls; the honeycomb core body is provided with regular hexagonal hole grids which are uniformly distributed; a third adhesive tape is arranged at the mutual contact position when the first part and the second part are spliced; and the side lengths of the regular hexagonal hole grids are equal to the widths of the first adhesive tape, the second adhesive tape and the third adhesive tape. The regular hexagon hole lattice forming device can guarantee uniform distribution of regular hexagons and achieve stable forming of regular regular hexagon hole lattices.

Description

Technical Field

[0001] This utility model relates to the field of honeycomb core materials, specifically to a honeycomb core material with multi-layered walls. Background Technology

[0002] Honeycomb core materials are widely used in engineering fields due to their lightweight, high strength, and energy-absorbing properties. Honeycomb structures have a high strength-to-weight ratio, enabling them to meet high strength requirements with smaller cross-sections and significantly reducing the structure's own weight. Therefore, honeycomb structures possess advantages such as good structural stability, impact resistance, and excellent cushioning performance. Honeycomb core materials are extensively used as the core material in sandwich structures. In transportation vehicles or applications requiring cushioning and energy absorption, honeycomb structure buffers demonstrate excellent performance as shock-absorbing components.

[0003] Chinese patent document CN214119658U discloses a multi-layered honeycomb core material. The honeycomb core material is composed of several honeycomb cells, each cell enclosed by several separable walls and several fixed connecting walls in a regular polygonal shape. The separable walls are not perpendicular to the stretching direction of the honeycomb core material, while the fixed connecting walls are perpendicular to the stretching direction. The separable walls have separation surfaces extending along their length, dividing them into multiple layers. During stretching, the structure at the separable walls is easier to bend and shape compared to the non-separable integral structure, reducing the tensile force and making the honeycomb core material easier to stretch, thus improving the product yield. However, this multi-layered honeycomb core material has technical drawbacks. Stretch optimization requires symmetry of the separation surfaces and multi-layer division. After stretching, the cell shape is easily affected by the distribution of the separation surfaces, and the fixation of the fixed connecting walls and the stretching variability of the separable walls make it difficult to guarantee the uniformity and stability of the regular hexagon after stretching. Utility Model Content

[0004] In view of this, in order to solve the above-mentioned technical problems, the purpose of this utility model is to propose a honeycomb core material with multi-layer walls, which can ensure the uniform distribution of regular hexagons and realize the stable forming of regular hexagonal lattice.

[0005] The technical solution adopted is as follows:

[0006] A honeycomb core material with multi-layered walls, comprising:

[0007] The first material layer, the multi-layered first material layer having a first adhesive strip between each pair for bonding; the multi-layered first material layers are stacked and bonded to form a first part having a plurality of half-hexagonal lattices;

[0008] The second material layer, the multi-layered second material layer has a second adhesive strip between each pair for bonding; the multi-layered second material layer is stacked and bonded to form a second part with multiple hexagonal lattices with the other half;

[0009] The first and second parts are joined together and bonded to form a honeycomb core with multiple walls; the honeycomb core has uniformly distributed regular hexagonal lattice; a third adhesive strip is provided at the contact position between the first and second parts when they are joined; the side length of the regular hexagonal lattice is equal to the width of the first adhesive strip, the second adhesive strip, and the third adhesive strip.

[0010] Furthermore, the first adhesive strip is distributed in a staggered manner along the side length of the regular hexagonal lattice.

[0011] Furthermore, the second adhesive strip is distributed laterally at staggered intervals along the side length of the regular hexagonal grid, and the positions of the first adhesive strip and the second adhesive strip correspond vertically.

[0012] Furthermore, the first part has an even number of elements, the second part has an even number of elements, and they are pieced together in the order of first part, second part, first part, second part.

[0013] Furthermore, the first part has an odd number of elements, and the second part has an even number of elements, which are then pieced together in the order of second part, first part, second part, first part, second part.

[0014] Furthermore, the first part has an even number of elements, and the second part has an odd number of elements, which are then pieced together in the order of the first part, the second part, the first part, the first part, and the second part.

[0015] Furthermore, the materials used for the first and second material layers are aluminum foil, aramid, or stainless steel.

[0016] Furthermore, the first material layer has two or three layers; the second material layer has two or three layers.

[0017] The beneficial effects of this utility model are as follows:

[0018] The first and second parts are joined together and bonded to form a honeycomb core with multiple walls; the honeycomb core has a uniformly distributed regular hexagonal grid; and the side length of the regular hexagonal grid is equal to the width of the first adhesive strip, the second adhesive strip, and the third adhesive strip, thereby ensuring the uniform distribution of the regular hexagons and achieving the stable forming of the regular hexagonal grid. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a honeycomb core material with multi-layered walls, as shown in Example 1.

[0021] Figure 2 This is a schematic diagram of a honeycomb core material with multi-layered walls, as shown in Example 2.

[0022] Figure 3 This is a schematic diagram of the initial state of the honeycomb core material in Comparative Example 1.

[0023] Figure 4 This is a schematic diagram of the honeycomb core material in the tensile state of Comparative Example 1.

[0024] Figure 5 This is a schematic diagram of the initial state of the honeycomb core material in Comparative Example 2.

[0025] Figure 6 This is a schematic diagram of the honeycomb core material in the tensile state of Comparative Example 2.

[0026] The serial numbers and their corresponding feature names in the figure are as follows:

[0027] 1-First material layer; 2-Second material layer; 11-First adhesive strip; 21-Second adhesive strip; 31-Third adhesive strip; 10-First part; 20-Second part; 30-Regular hexagonal grid. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0029] See Figure 1 As shown, a honeycomb core material with multiple walls includes a first material layer 1 and a second material layer 2.

[0030] First material layer 1, the multi-layered first material layer 1 has a first adhesive strip 11 for bonding between each pair; the multi-layered first material layer 1 is stacked and bonded to form a first part 10 with a plurality of half-hexagonal lattices.

[0031] The second material layer 2, the multi-layered second material layer 2 has a second adhesive strip 21 for bonding between each pair; the multi-layered second material layer 2 is stacked and bonded to form a second part 20 with multiple hexagonal lattices with the other half;

[0032] The first part 10 and the second part 20 are joined together and bonded to form a honeycomb core with multiple walls; the honeycomb core has uniformly distributed regular hexagonal cells 30; a third adhesive strip 31 is provided at the contact position when the first part and the second part are joined together; the side length of the regular hexagonal cells 30 is equal to the width of the first adhesive strip 11, the second adhesive strip 21 and the third adhesive strip 31.

[0033] In one specific implementation, the first adhesive strip 11 is laterally staggered along the side length of the regular hexagonal grid 30. The second adhesive strip 21 is also laterally staggered along the side length of the regular hexagonal grid 30, with the positions of the first adhesive strip 11 and the second adhesive strip 21 corresponding vertically. This avoids applying adhesive strips to all sides of the regular hexagonal grid, ensuring a uniform distribution of the hexagons after stretching, and achieving stable forming of a regular hexagonal grid.

[0034] In one specific implementation, the first part 10 has an even number of elements, and the second part 20 has an even number of elements, and they are pieced together in the order of the first part, the second part, the first part, and the second part.

[0035] Alternatively, the first part has 10 items with an odd number of items, and the second part has 20 items with an even number of items, and they are pieced together in the order of the second part, the first part, the second part, the first part, and the second part.

[0036] Alternatively, the first part has 10 items with an even number of items, and the second part has 20 items with an odd number of items. These items are then pieced together in the order of the first part, the second part, the first part, the second part, and the first part.

[0037] The first part 10 and the second part 20 are symmetrical from top to bottom. By assembling the first part and the second part in pairs, a honeycomb core with uniformly distributed regular hexagonal lattice cells can be obtained. This honeycomb core has multiple layers of walls.

[0038] In one specific embodiment, the materials used for the first material layer 1 and the second material layer 2 include, but are not limited to, aluminum foil, aramid, or stainless steel, thereby enabling the fabrication of, but not limited to, aluminum honeycomb core materials, aramid honeycomb core materials, or stainless steel honeycomb core materials. This embodiment uses aluminum foil.

[0039] In this embodiment, the first material layer 1 has three layers and the second material layer 2 has three layers, forming a honeycomb core material with three-layer walls.

[0040] During preparation, the first material layer 1 of each layer is folded into an up-and-down undulating shape with multiple hexagonal side lengths, and the three first material layers 1 are bonded together in pairs with the first adhesive strip 11 to form the first part;

[0041] Each layer of the second material layer 2 is folded into an up-and-down undulating shape with multiple hexagonal side lengths. The three layers of the second material layer 2 are bonded together in pairs with the second adhesive strip 21 to form the second part.

[0042] The first part 10 and the second part 20 are joined together and bonded together with the third adhesive strip 31 to form a honeycomb core with multiple walls; the honeycomb core has uniformly distributed regular hexagonal cells;

[0043] The assembled structure, after being stretched and joined together, forms a honeycomb structure with regular hexagonal lattice.

[0044] Since the first part 10 and the second part 20 are joined together and bonded to form a honeycomb core with multiple walls, the honeycomb core has uniformly distributed regular hexagonal lattice 30. The side length of the regular hexagonal lattice 30 is equal to the width of the first adhesive strip 11, the second adhesive strip 21 and the third adhesive strip 31, thus ensuring that the lattice is regular hexagonal after stretching, and realizing the stable forming of regular hexagonal lattice. Example 2

[0045] Referring to Example 1, the difference from Example 1 is that... Figure 2 As shown, in this embodiment, the first material layer 1 has two layers, and the second material layer 2 has two layers, forming a honeycomb core material with two layers of walls. After stretching, the lattice is a regular hexagon, achieving stable forming of a regular hexagonal lattice. Comparative Example 1

[0046] Referring to Example 1, the difference from Example 1 is that... Figure 3 and Figure 4 As shown, the first material layer 1 in this comparative example has only one layer, and the second material layer 2 has only one layer, forming a honeycomb core material with a single wall. However, after stretching, the pores are not regular hexagons. Comparative Example 2

[0047] Referring to Example 1, the difference from Example 1 is that... Figure 5 and Figure 6 As shown, the widths of the first adhesive strip 11, the second adhesive strip 21, and the third adhesive strip 31 in this comparative example are not equal to the side lengths of the regular hexagonal grid 30. For example, when the widths of the first adhesive strip 11, the second adhesive strip 21, and the third adhesive strip 31 are only one-third of the side lengths of the regular hexagonal grid, the grid will not be regular hexagonal after stretching.

[0048] It should be noted that, in order to better show the structure of the honeycomb core material with multiple walls, the multiple first material layers, the multiple second material layers, and the first and second material layers in the attached figure are shown with a slight distance between them.

[0049] Comparative Examples 1 and 2 are comparative examples used in the research and development process. Compared to Comparative Example 1, it is shown that the multi-layered walls of the honeycomb core material in Examples 1-2 can increase strength and prevent deformation, especially at the edges, and is particularly suitable for honeycomb core materials made of flexible materials, such as aluminum foil, plastic, or paper-based materials. Compared to Comparative Example 2, it is shown that the width of the first, second, or third adhesive strip of the honeycomb core material in Examples 1-2 should be the same as or equal to the side length of the regular hexagonal lattice, ensuring that the lattice is regular hexagonal after stretching, and achieving stable forming of regular hexagonal lattice.

[0050] This utility model includes, but is not limited to, the three-layer embodiment 1 and the two-layer embodiment 2. Other layers, such as four layers, can also be provided as needed to form more embodiments.

[0051] The serial numbers "first," "second," "third," etc., in this instruction manual are for distinguishing components with the same function or structure, and do not imply any order or relative importance. The corresponding components are relatively independent, such as the first adhesive strip, the second adhesive strip, and the third adhesive strip.

[0052] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. All equivalent embodiments or modifications made without departing from the spirit of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A honeycomb core material with multi-layered walls, characterized in that, include: The first material layer, the multi-layered first material layer having a first adhesive strip between each pair for bonding; The first material layers are stacked and bonded together to form a first part with multiple half-hexagonal lattices; The second material layer, the multi-layered second material layer has a second adhesive strip between each pair for bonding; the multi-layered second material layer is stacked and bonded to form a second part with multiple hexagonal lattices with the other half; The first and second parts are joined together and bonded to form a honeycomb core with multiple walls; the honeycomb core has uniformly distributed regular hexagonal lattice; a third adhesive strip is provided at the contact position between the first and second parts when they are joined; the side length of the regular hexagonal lattice is equal to the width of the first adhesive strip, the second adhesive strip, and the third adhesive strip.

2. The honeycomb core material with multi-layered walls according to claim 1, characterized in that, The first adhesive strip is distributed laterally at staggered intervals along the side length of the regular hexagonal grid.

3. The honeycomb core material with multi-layered walls according to claim 2, characterized in that, The second adhesive strip is distributed laterally at staggered intervals along the side length of the regular hexagonal grid, and the positions of the first adhesive strip and the second adhesive strip correspond vertically.

4. The honeycomb core material with multi-layered walls according to claim 1, characterized in that, The first part has an even number of elements, and the second part has an even number of elements. They are pieced together in the order of the first part, the second part, the first part, and the second part.

5. The honeycomb core material with multi-layered walls according to claim 1, characterized in that, The first part has an odd number of elements, and the second part has an even number of elements. They are pieced together in the order of the second part, the first part, the second part, the first part, and the second part.

6. The honeycomb core material with multi-layered walls according to claim 1, characterized in that, The first part has an even number of elements, and the second part has an odd number of elements. They are pieced together in the order of the first part, the second part, the first part, the second part, and the first part.

7. The honeycomb core material with multi-layered walls according to claim 1, characterized in that, The materials used for the first and second material layers are aluminum foil, aramid, or stainless steel.

8. The honeycomb core material with multi-layered walls according to claim 1, characterized in that, The first material layer has two or three layers; the second material layer has two or three layers.

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