Novel corrugated board structure

Abstract

The utility model discloses a novel corrugated paper board structure, which belongs to the technical field of corrugated paper boards and comprises a paper board shell and a core board, a plurality of uniformly distributed cavities are arranged inside the paper board shell, the core board is filled in the cavities, the end face of the paper board shell is adhered with an end board used for covering the cavities, and the end board is connected with the core board. The core plate comprises a protection plate layer, supporting plate layers and a waved plate layer, the supporting plate layers are fixedly connected to the two sides of the interior of the protection plate layer, and the waved plate layer is fixedly connected between the supporting plate layers; through the split design of the paperboard shell and the core plate, when the corrugated paperboard is recycled, the end plate can be torn to expose the cavity, then the core plate can be taken out from the cavity, the core plate is directly recycled, and the paperboard shell is used as waste for secondary processing, so that the production cost is further saved while the waste is saved.

Description

Technical Field

[0001] This utility model belongs to the field of corrugated cardboard technology, specifically relating to a novel corrugated cardboard structure. Background Technology

[0002] Corrugated cardboard is a multi-layered adhesive, consisting of at least one layer of corrugated core paper and one layer of cardboard. It has high mechanical strength, can withstand impacts and drops during handling, and is also known as corrugated paperboard. It also has good elasticity and extensibility.

[0003] The existing Chinese patent with publication number CN210082600U discloses a corrugated cardboard, including a face paper, a back paper, and a corrugated core paper. The corrugated core paper is bonded between the face paper and the back paper. The corrugated core paper has at least two layers, and the at least two layers of corrugated core paper are bonded to each other by an adhesive layer.

[0004] Regarding the aforementioned technologies, the inventors have discovered at least the following problems: Most existing corrugated cardboard has an integral structure. When recycling corrugated cardboard, it is generally processed as waste cardboard and crushed. Although the crushed waste can be reprocessed to achieve recycling and save waste, the secondary processing of waste still requires productivity. If waste cardboard can be recycled without secondary processing, production costs can be further reduced. Therefore, a new type of corrugated cardboard structure is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a novel corrugated cardboard structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel corrugated cardboard structure, comprising a cardboard shell and a core board, wherein the cardboard shell has several evenly distributed cavities inside, the core board is filled in the cavities, and end plates for covering the cavities are glued to the end faces of the cardboard shell.

[0007] The core board includes a protective plate layer, a support plate layer, and a corrugated plate layer. The support plate layer is fixedly connected to both sides inside the protective plate layer, and the corrugated plate layer is fixedly connected between the support plate layers.

[0008] In a preferred embodiment, the cardboard shell and the end plate are bonded together with waterproof sealant.

[0009] In a preferred embodiment, the cardboard shell is a biodegradable cardboard, and the outer surface of the cardboard shell is provided with a PTFE waterproof membrane.

[0010] In a preferred embodiment, a carbon fiber reinforcement layer is fixedly connected to the outer surface of the protective plate layer.

[0011] In a preferred embodiment, a rubber layer is provided inside the support plate layer.

[0012] In a preferred embodiment, both sides of the corrugated plate layer are filled with polyurethane foam layers.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This new type of corrugated cardboard structure features a separate design for the cardboard shell and the core board. When the corrugated cardboard is recycled, the end plate can be torn open to expose the cavity. Then, the core board can be removed from the cavity and recycled directly. The cardboard shell is used as waste material for secondary processing, which can save waste material and further reduce production costs.

[0015] This new corrugated cardboard structure, through the addition of a carbon fiber reinforcement layer, can improve the structural strength of the protective board layer, making the core board less susceptible to damage when external forces impact the corrugated cardboard. The addition of a polyurethane foam layer can provide cushioning and support for the corrugated board layer, making it less prone to deformation and damage when external forces impact the corrugated cardboard, thus facilitating the reuse of the core board. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a cross-sectional structural diagram of the core board of this utility model.

[0019] In the diagram: 1. Cardboard shell; 11. Cavity; 12. End plate; 13. Waterproof sealant; 14. PTFE waterproof membrane; 2. Core board; 21. Protective board layer; 22. Support board layer; 23. Corrugated board layer; 24. Carbon fiber reinforcement layer; 25. Rubber layer; 26. Polyurethane foam layer. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0022] Please see Figure 1-3 This utility model provides a novel corrugated cardboard structure, including a cardboard shell 1 and a core board 2. The cardboard shell 1 has several evenly distributed cavities 11 inside, and the core board 2 fills the cavities 11. End plates 12 for covering the cavities 11 are glued to the end face of the cardboard shell 1. The cardboard shell 1 and the end plates 12 are glued to each other with waterproof sealant 13. Through the split design of the cardboard shell 1 and the core board 2, when the corrugated cardboard is recycled, the end plates 12 can be torn open to expose the cavities 11. Then, the core board 2 can be taken out from the cavity 11 and reused directly. The cardboard shell 1 is used as waste for secondary processing, thereby saving waste and further reducing production costs.

[0023] Furthermore, the cardboard shell 1 is made of biodegradable cardboard. By using cardboard shell 1 made of biodegradable cardboard, the environmental protection effect can be improved when recycling cardboard shell 1. The outer surface of cardboard shell 1 is provided with a PTFE waterproof membrane 14. The waterproof ability of corrugated cardboard can be improved by the setting of PTFE waterproof membrane 14.

[0024] Specifically, the core board 2 includes a protective board layer 21, a support board layer 22, and a corrugated board layer 23. The support board layer 22 is fixedly connected to both sides inside the protective board layer 21, and the corrugated board layer 23 is fixedly connected between the support board layers 22. Through the setting of the core board 2, the corrugated cardboard has basic anti-collision and cushioning functions.

[0025] Furthermore, a carbon fiber reinforcing layer 24 is fixedly connected to the outer surface of the protective board layer 21. The carbon fiber reinforcing layer 24 can improve the structural strength of the protective board layer 21, making the core board 2 less likely to be damaged when the corrugated cardboard is impacted by external force, thus facilitating the reuse of the core board 2.

[0026] Furthermore, a rubber layer 25 is provided inside the support board layer 22. The rubber layer 25 can improve the cushioning effect of the core board 2 and make the corrugated cardboard more protective.

[0027] Furthermore, both sides of the corrugated board layer 23 are filled with polyurethane foam layers 26. The polyurethane foam layers 26 can provide cushioning and support for the corrugated board layer 23, making it less prone to deformation and damage when external forces impact the corrugated board, thus facilitating the reuse of the core board 2.

[0028] The working principle and usage process of this utility model are as follows: First, through the separate design of the cardboard shell 1 and the core board 2, when the corrugated cardboard is recycled, the end plate 12 can be torn open to expose the cavity 11. Then, the core board 2 can be taken out from the cavity 11 and directly recycled. The cardboard shell 1 is used as waste for secondary processing, thereby saving waste and further reducing production costs. By using a biodegradable cardboard material for the cardboard shell 1, the environmental protection effect can be improved when recycling the cardboard shell 1. The setting of the carbon fiber reinforcement layer 24 can improve the structural strength of the protective plate layer 21, making the core board 2 less likely to be damaged when the corrugated cardboard is impacted by external force. The setting of the polyurethane foam layer 26 can play a buffering and supporting role for the corrugated plate layer 23, making the corrugated plate layer 23 less likely to be deformed and damaged when the corrugated cardboard is impacted by external force, thus facilitating the reuse of the core board 2.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel corrugated cardboard structure, comprising a cardboard shell (1) and a core board (2), characterized in that: The cardboard shell (1) has several evenly distributed cavities (11) inside, the core board (2) is filled in the cavities (11), and the end plate (12) for covering the cavities (11) is glued to the end face of the cardboard shell (1). The core board (2) includes a protective plate layer (21), a support plate layer (22) and a corrugated plate layer (23). The support plate layer (22) is fixedly connected to both sides inside the protective plate layer (21), and the corrugated plate layer (23) is fixedly connected between the support plate layers (22).

2. The novel corrugated cardboard structure according to claim 1, characterized in that: The cardboard shell (1) and the end plate (12) are bonded together by waterproof sealant (13).

3. The novel corrugated cardboard structure according to claim 1, characterized in that: The cardboard shell (1) is a biodegradable cardboard, and the outer surface of the cardboard shell (1) is provided with a PTFE waterproof membrane (14).

4. The novel corrugated cardboard structure according to claim 1, characterized in that: A carbon fiber reinforcement layer (24) is fixedly connected to the outer surface of the protective plate layer (21).

5. A novel corrugated cardboard structure according to claim 1, characterized in that: The support plate layer (22) has a rubber layer (25) inside.

6. The novel corrugated cardboard structure according to claim 1, characterized in that: Both sides of the corrugated plate layer (23) are filled with polyurethane foam layers (26).

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