Paperboard with built-in cushioning

Abstract

The utility model discloses a paperboard containing buffer structure belongs to paperboard technical field, the utility model discloses a lower paperboard, the top of lower paperboard is fixed with buffer piece, and buffer piece has two layers, and two layers buffer piece perpendicularly sets, and the top of upper buffer piece is fixed with upper paperboard, and buffer piece along the length direction of lower paperboard is set with several right -hand triangle paperboard no.

Description

Technical Field

[0001] This utility model relates to the field of paperboard technology, specifically to a paperboard containing a cushioning structure. Background Technology

[0002] Cardboard is a flat material made from pulp or cellulose, commonly used for packaging, making boxes, cards, book covers, etc. It can vary in thickness and rigidity, from thin as paper to thicker cardboard, suitable for a variety of applications. Cardboard is usually made by pressing paper, and its quality and properties depend on the raw materials, processing technology, and manufacturing process. In packaging, logistics, and other fields, there is a high demand for the cushioning performance of cardboard to ensure that goods are not damaged by impact during transportation and storage. Current technologies often enhance the cushioning capacity of cardboard by designing special structures, such as cardboard with a V-shaped plate structure. The V-shaped plate absorbs energy through deformation under force, thus improving the cushioning effect to a certain extent.

[0003] When the tip of the V-shaped board is squeezed, due to its relatively simple structure, the stress is concentrated in the tip area, which is prone to deformation. After deformation, it is difficult to recover effectively on its own, resulting in a rapid decline in the cushioning performance of the cardboard and an inability to provide continuous and stable protection for items. Therefore, a cardboard with an internal cushioning structure is proposed to address the above situation. Utility Model Content

[0004] The purpose of this utility model is to provide a cardboard with an internal cushioning structure. Through the structural design of triangular cardboard one, triangular cardboard two, and reinforcing ribs, compared with the existing V-shaped board, the various structures work together to bear the load when subjected to force, dispersing the stress in key parts such as the tip, effectively reducing the probability of deformation caused by compression, so that the cardboard can still maintain good structural integrity when subjected to external impact, improving the recovery ability of the cushioning layer, and solving the problem that when the tip of the V-shaped board is compressed, due to its relatively simple structure, the stress is concentrated in the tip area, which is prone to deformation, and it is difficult to recover effectively on its own after deformation.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model is a cardboard with a built-in cushioning structure, including a lower cardboard, a cushioning component fixed to the top of the lower cardboard, the cushioning component having two layers, the two layers of cushioning components being arranged vertically, and an upper cardboard fixed to the top of the upper cushioning component.

[0007] The buffer consists of several upright triangular cardboard pieces arranged along the length of the lower cardboard, with an inverted triangular cardboard piece fixed within the included angle between two adjacent upright triangular cardboard pieces.

[0008] Inside the triangular cardboard one, there is a triangular cardboard two, and inside the triangular cardboard two, there are reinforcing ribs.

[0009] Furthermore, a triangular cavity is formed on the triangular cardboard, and V-shaped slots are formed on the three inner walls of the triangular cavity.

[0010] Furthermore, the three corners of the triangular cardboard two are respectively inserted into the corresponding V-shaped slots.

[0011] Furthermore, a triangular cavity is formed on the triangular cardboard 2, and a reinforcing rib is fixed inside the triangular cavity 2, with the reinforcing rib fitting against the inner wall of the triangular cavity 2.

[0012] Furthermore, both the lower and upper cardboard surfaces are covered with PVC film.

[0013] This utility model has the following beneficial effects:

[0014] This invention, through the structural design of triangular cardboard one, triangular cardboard two, and reinforcing ribs, compared with existing V-shaped boards, allows each structure to work together to bear the load under stress, dispersing stress in key areas such as the tip, effectively reducing the probability of deformation caused by compression. This enables the cardboard to maintain good structural integrity even when subjected to external impact, improving the recovery ability of the buffer layer and ensuring the buffering stability of the cardboard during multiple cycles of use. In addition, the nesting of triangular cardboard two and triangular cardboard one, along with the design of reinforcing ribs, extends the energy transfer path under external force, increasing energy absorption and dissipation links. Whether subjected to uniform force or local single-point compression, it can more efficiently disperse and buffer impact forces.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the cardboard structure.

[0017] Figure 2 This is a schematic diagram of the buffer component.

[0018] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0019] Figure 4 This is a schematic diagram of the assembly structure of triangular cardboard two and triangular cardboard one.

[0020] In the diagram: 1. Lower cardboard; 2. Buffer; 20. Triangular cardboard one; 200. Triangular cavity one; 201. V-shaped slot; 21. Triangular cardboard two; 210. Triangular cavity two; 22. Reinforcing rib; 3. Upper cardboard. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a cardboard with a cushioning structure, including a lower cardboard 1, a cushioning member 2 fixed on the top of the lower cardboard 1, the cushioning member 2 having two layers, the two layers of cushioning members 2 being arranged vertically, an upper cardboard 3 fixed on the top of the upper cushioning member 2, and PVC film being provided on the surfaces of both the lower cardboard 1 and the upper cardboard 3.

[0023] The upper buffer 2 is set perpendicular to the lower buffer 2 to form a "crisscrossing" two-dimensional buffer array. The top of the triangular cardboard 20 of the upper buffer 2 is fixed to the upper cardboard 3 by hot melt adhesive or pressure-sensitive adhesive. The upper cardboard is made of waterproof kraft paper.

[0024] The PVC film on the surfaces of the lower cardboard 1 and the upper cardboard 3 ensures the abrasion resistance and water resistance of the cardboard surface, maintains the integrity of the cardboard structure, and helps to improve the stability of the overall cushioning and protection. Ultimately, through the synergistic effect of multiple cushioning components, it effectively weakens the external impact force and protects the internal items.

[0025] When an external force is applied to the upper cardboard, the impact force is first buffered vertically by the upper buffer 2, and then transmitted to the lower buffer 2 to be dispersed horizontally. By using the two vertically arranged buffers 2, a three-dimensional buffer system is constructed to achieve multi-directional and multi-level force transmission and absorption.

[0026] The buffer 2 consists of several upright triangular cardboard pieces 20 arranged along the length of the lower cardboard 1, and an inverted triangular cardboard piece 20 is fixed in the included angle between two adjacent upright triangular cardboard pieces 20.

[0027] Among them, the lower cardboard 1 serves as the basic load-bearing layer, using high-strength corrugated paper, and is fixed to the buffer 2 by hot melt adhesive bonding or mechanical pressing.

[0028] The buffer components 2 are arranged in an array along the length of the lower cardboard 1. Several upright triangular cardboard pieces 20 constitute the first layer of buffer units. Their bottoms are completely attached to the surface of the lower cardboard 1 to ensure that the impact force can be stably transmitted to the buffer components 2 when subjected to force. In the angled area between adjacent upright triangular cardboard pieces 20, inverted triangular cardboard pieces 20 are set by integral molding or adhesive bonding to form the first layer of buffer array with "upright-inverted" triangular nesting. The mechanical stability of the triangular structure is used to disperse vertical and lateral impact forces.

[0029] Inside the triangular cardboard 1 20 is a triangular cardboard 21, and inside the triangular cardboard 21 is a reinforcing rib 22.

[0030] Furthermore, a triangular cavity 200 is formed on the triangular cardboard 20, and V-shaped slots 201 are formed on the three inner walls of the triangular cavity 200.

[0031] The V-shaped slot is processed by die-cutting to ensure structural strength while providing interlocking space. The three corners of the triangular cardboard 21 are precisely inserted into the V-shaped slot 201 to form a mechanical interlocking fit. The limiting and guiding function of the V-shaped slot 201 makes the triangular cardboard 21 stable in the triangular cavity 200. When subjected to force, the two transfer stress through the contact surface of the slot, realizing the coordinated deformation buffer of "outer triangular cardboard 1 - inner triangular cardboard 2".

[0032] Furthermore, the three corners of the triangular cardboard 21 are respectively inserted into the corresponding V-shaped slots 201.

[0033] Furthermore, a triangular cavity 210 is formed on the triangular cardboard 21, and a reinforcing rib 22 is fixed inside the triangular cavity 210. The reinforcing rib 22 is in close contact with the inner wall of the triangular cavity 210.

[0034] Among them, the reinforcing rib 22 is made of high-strength cardboard roll or metal foil and is completely attached to the inner wall of the second triangular cavity 210. It is connected by an embedded snap-fit ​​method. The reinforcing rib uses its own structural rigidity to provide internal support for the second triangular cardboard 21. When subjected to force, it can effectively resist the deformation of the second triangular cardboard 21 and further disperse the stress to the first triangular cardboard 20, thereby strengthening the deformation resistance of the entire buffer.

[0035] When an external impact force acts on the upper cardboard 3, the impact force is first transmitted to the upper buffer 2. In the upper buffer 2, the array formed by the upright and inverted triangular cardboard 20 disperses the vertical impact force to the horizontal direction by utilizing the mechanical properties of the triangular structure. At this time, within the triangular cavity 200 of the triangular cardboard 20, the triangular cardboard 21 is inserted and connected by the corner into the V-shaped slot 201, and the two deform together, further dispersing and absorbing the impact force.

[0036] Meanwhile, the reinforcing ribs 22 inside the triangular cardboard 21, by fitting and supporting the inner wall of the triangular cavity 210, enhance the structural rigidity of the triangular cardboard 21, resist deformation, and transfer stress to the triangular cardboard 1 20, thereby improving the overall anti-deformation ability of the buffer 2 and avoiding excessive local depression.

[0037] The impact force initially buffered by the upper buffer 2 is transmitted to the lower buffer 2 (set perpendicular to the upper layer). The lower buffer 2 repeats the above process of "triangular array dispersion - nested triangular synergistic buffering - reinforcing rib support" to disperse and absorb the impact force horizontally again, achieving multi-directional and multi-layered buffering.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A paperboard containing a cushioning structure, comprising a lower paperboard (1), characterized in that: The top of the lower cardboard (1) is fixed with a buffer (2), the buffer (2) has two layers, the two layers of buffer (2) are vertically arranged, and the top of the upper buffer (2) is fixed with an upper cardboard (3). The buffer (2) has several upright triangular cardboard pieces (20) arranged along the length of the lower cardboard (1), and an inverted triangular cardboard piece (20) is fixed in the included angle between two adjacent upright triangular cardboard pieces (20). The triangular cardboard one (20) has a triangular cardboard two (21) inside, and the triangular cardboard two (21) has a reinforcing rib (22) fixed inside.

2. The cardboard with an internal cushioning structure according to claim 1, characterized in that, The triangular cardboard 1 (20) has a triangular cavity 1 (200), and the three inner walls of the triangular cavity 1 (200) are respectively provided with V-shaped slots (201).

3. The cardboard with an internal cushioning structure according to claim 1, characterized in that, The three corners of the triangular cardboard two (21) are respectively inserted into the corresponding V-shaped slots (201).

4. The cardboard with an internal cushioning structure according to claim 3, characterized in that, The triangular cardboard 2 (21) has a triangular cavity 2 (210) and a reinforcing rib (22) is fixed inside the triangular cavity 2 (210). The reinforcing rib (22) is in contact with the inner wall of the triangular cavity 2 (210).

5. The cardboard with an internal cushioning structure according to claim 1, characterized in that, Both the lower cardboard (1) and the upper cardboard (3) are covered with PVC film.

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