Multi-layer composite corrugated board

Abstract

The utility model relates to the technical field of corrugated boards, and discloses a multi-layer composite corrugated board, which solves the problems that in the use process of the corrugated board, the functionality is insufficient, the service life of the corrugated board is shortened, and better practicability is inconvenient to achieve, and comprises a middle paper board layer, the top of the middle paperboard layer is fixedly connected with a first protective layer, the bottom of the middle paperboard layer is fixedly connected with a second protective layer, the middle paperboard layer comprises a first corrugated paperboard layer and a second corrugated paperboard layer, and grating grooves are formed in the bottom of the first corrugated paperboard layer and the top of the second corrugated paperboard layer; a reinforcing grating is connected between the first corrugated board layer and the second corrugated board layer; according to the utility model, in the use process of the corrugated board, the effects of high strength, heat insulation and wear resistance can be conveniently achieved, the functionality of the corrugated board is enhanced, and the service life of the corrugated board is prolonged, so that better practicability can be conveniently achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of corrugated paperboard, and particularly relates to a multi-layer composite corrugated paperboard. Background Art

[0002] Corrugated paperboard is a board made up of a corrugated core layer formed between two or more layers of paperboard and a covering layer. This structure enables the corrugated paperboard to have good mechanical strength and elasticity and can be used as a buffer material. There are various types of corrugated paperboard, which can form different types according to different combinations, such as three-layer paperboard, five-layer paperboard, and seven-layer paperboard, etc. However, during the use of corrugated paperboard, its functionality is insufficient, reducing the service life of the corrugated paperboard, and thus it is not convenient to achieve better practicality. Content of the Utility Model

[0003] In view of the above situation, to overcome the defects of the prior art, the utility model provides a multi-layer composite corrugated paperboard, effectively solving the problem that during the use of corrugated paperboard, its functionality is insufficient, reducing the service life of the corrugated paperboard, and thus it is not convenient to achieve better practicality.

[0004] To achieve the above object, the utility model provides the following technical solution: A multi-layer composite corrugated paperboard, including an intermediate paperboard layer. A first protective layer is fixedly connected to the top of the intermediate paperboard layer, and a second protective layer is fixedly connected to the bottom of the intermediate paperboard layer. The intermediate paperboard layer includes a first corrugated paperboard layer and a second corrugated paperboard layer. Grid grooves are provided at the bottom of the first corrugated paperboard layer and the top of the second corrugated paperboard layer. A reinforcing grid is connected between the first corrugated paperboard layer and the second corrugated paperboard layer. The top of the reinforcing grid is located inside the grid groove at the bottom of the first corrugated paperboard layer, and the bottom of the reinforcing grid is located inside the grid groove at the top of the second corrugated paperboard layer. The depth of both grid grooves is half of the thickness of the reinforcing grid.

[0005] Preferably, the reinforcing grid is composed of five horizontal reinforcing bars and five vertical reinforcing bars perpendicular to each other, and the reinforcing grid is made of polyethylene fiber material.

[0006] Preferably, the first protective layer includes a first heat-insulating layer, and the first heat-insulating layer is fixedly connected to the top of the first corrugated paperboard layer. A first waterproof layer is fixedly connected to the top of the first heat-insulating layer, and a first wear-resistant layer is fixedly connected to the top of the first waterproof layer. The second protective layer includes a second heat-insulating layer, and the second heat-insulating layer is fixedly connected to the bottom of the second corrugated paperboard layer. A second waterproof layer is fixedly connected to the bottom of the second heat-insulating layer, and a second wear-resistant layer is fixedly connected to the bottom of the second waterproof layer.

[0007] Preferably, both the first heat-insulating layer and the second heat-insulating layer are made of aluminum foil heat-insulating cotton, both the first waterproof layer and the second waterproof layer are made of waterproof film, and both the first wear-resistant layer and the second wear-resistant layer are made of a wear-resistant and corrosion-resistant polymer material obtained by compounding high-performance wear-resistant ceramic particles and modified toughening resin.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0009] 1) During operation, through the interaction of the intermediate cardboard layer, the first protective layer, and the second protective layer provided, it is possible to make the corrugated cardboard achieve high strength, heat insulation, and wear resistance during use, enhance the functionality of the corrugated cardboard, extend the service life of the corrugated cardboard, and thus achieve better practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model.

[0011] In the drawings:

[0012] Figure 1 is a schematic structural diagram of a multi-layer composite corrugated cardboard of the present utility model;

[0013] Figure 2 is an exploded structural diagram of the intermediate cardboard layer of the present utility model;

[0014] Figure 3 is a schematic structural diagram of the first protective layer and the second protective layer of the present utility model.

[0015] In the figure: 1, intermediate cardboard layer; 101, first corrugated cardboard layer; 102, second corrugated cardboard layer; 103, grid groove; 104, reinforcement grid; 1041, transverse reinforcement bar; 1042, longitudinal reinforcement; 2, first protective layer; 201, first heat-insulating layer; 202, first waterproof layer; 203, first wear-resistant layer; 3, second protective layer; 301, second heat-insulating layer; 302, second waterproof layer; 303, second wear-resistant layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments; based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Example 1, consisting ofFigure 1 , Figure 2 and Figure 3 are provided. The utility model includes an intermediate cardboard layer 1. A first protective layer 2 is fixedly connected to the top of the intermediate cardboard layer 1, and a second protective layer 3 is fixedly connected to the bottom of the intermediate cardboard layer 1. The intermediate cardboard layer 1 includes a first corrugated cardboard layer 101 and a second corrugated cardboard layer 102. Grid grooves 103 are formed in the bottom of the first corrugated cardboard layer 101 and the top of the second corrugated cardboard layer 102. A reinforcing grid 104 is connected between the first corrugated cardboard layer 101 and the second corrugated cardboard layer 102. The top of the reinforcing grid 104 is located inside the grid groove 103 at the bottom of the first corrugated cardboard layer 101, and the bottom of the reinforcing grid 104 is located inside the grid groove 103 at the top of the second corrugated cardboard layer 102. The depth of both grid grooves 103 is half of the thickness of the reinforcing grid 104. The reinforcing grid 104 is composed of five transverse reinforcing bars 1041 and five longitudinal reinforcing bars 1042 perpendicular to each other, and the reinforcing grid 104 is made of polyethylene fiber material;

[0018] The first protective layer 2 includes a first heat insulation layer 201, and the first heat insulation layer 201 is fixedly connected to the top of the first corrugated cardboard layer 101. A first waterproof layer 202 is fixedly connected to the top of the first heat insulation layer 201, and a first wear-resistant layer 203 is fixedly connected to the top of the first waterproof layer 202. The second protective layer 3 includes a second heat insulation layer 301, and the second heat insulation layer 301 is fixedly connected to the bottom of the second corrugated cardboard layer 102. A second waterproof layer 302 is fixedly connected to the bottom of the second heat insulation layer 301, and a second wear-resistant layer 303 is fixedly connected to the bottom of the second waterproof layer 302. The first heat insulation layer 201 and the second heat insulation layer 301 are both made of aluminum foil heat insulation cotton. The first waterproof layer 202 and the second waterproof layer 302 are both made of waterproof film. The first wear-resistant layer 203 and the second wear-resistant layer 303 are both made of a wear-resistant and corrosion-resistant polymer material obtained by compounding high-performance wear-resistant ceramic particles and modified toughened resin.

[0019] In use, through the interaction of the provided intermediate cardboard layer 1, the first protective layer 2 and the second protective layer 3, it is possible to make the corrugated cardboard achieve the effects of high strength, heat insulation and wear resistance during use, enhance the functionality of the corrugated cardboard, improve the service life of the corrugated cardboard, and thus achieve better practicality.

[0020] Working principle: During operation, through the interaction of the first corrugated cardboard layer 101, the second corrugated cardboard layer 102, the grid grooves 103, and the reinforcement grid 104 made of polyethylene fiber material, the intermediate cardboard layer 1 can achieve higher strength, improve the durability of the corrugated cardboard, and prevent it from deforming during use. At the same time, through the interaction of the first heat insulation layer 201 and the second heat insulation layer 301 made of aluminum foil heat insulation cotton, the first waterproof layer 202 and the second waterproof layer 302 made of waterproof film, and the first wear-resistant layer 203 and the second wear-resistant layer 303 made of wear-resistant and corrosion-resistant polymer material obtained by compounding high-performance wear-resistant ceramic particles and modified toughened resin, the first protective layer 2 and the second protective layer 3 can form better protection on the top and bottom of the intermediate cardboard layer 1, enabling the corrugated cardboard to achieve better heat insulation, waterproofness, and wear resistance during use. In this way, during the use of the corrugated cardboard, it is easy to achieve the effects of high strength, heat insulation, and wear resistance, enhancing the functionality of the corrugated cardboard, increasing the service life of the corrugated cardboard, and thus facilitating better practicality.

Claims

1. A multi-layer composite corrugated cardboard, comprising an intermediate cardboard layer (1), characterized in that: The top of the middle cardboard layer (1) is fixedly connected with a first protective layer (2), and the bottom of the middle cardboard layer (1) is fixedly connected with a second protective layer (3). The middle cardboard layer (1) includes a first corrugated cardboard layer (101) and a second corrugated cardboard layer (102). Grid grooves (103) are formed in the bottom of the first corrugated cardboard layer (101) and the top of the second corrugated cardboard layer (102). A reinforcing grid (104) is connected between the first corrugated cardboard layer (101) and the second corrugated cardboard layer (102). The top of the reinforcing grid (104) is located inside the grid groove (103) at the bottom of the first corrugated cardboard layer (101), and the bottom of the reinforcing grid (104) is located inside the grid groove (103) at the top of the second corrugated cardboard layer (102). The depths of the two grid grooves (103) are both half of the thickness of the reinforcing grid (104).

2. A multi-layer composite corrugated cardboard according to claim 1, characterized in that: The reinforcing grid (104) is composed of five horizontal reinforcing bars (1041) and five vertical reinforcing bars (1042) perpendicular to each other, and the reinforcing grid (104) is made of polyethylene fiber material.

3. A multi-layer composite corrugated cardboard according to claim 1, characterized in that: The first protective layer (2) includes a first heat insulation layer (201), and the first heat insulation layer (201) is fixedly connected to the top of the first corrugated cardboard layer (101). The top of the first heat insulation layer (201) is fixedly connected with a first waterproof layer (202), and the top of the first waterproof layer (202) is fixedly connected with a first wear-resistant layer (203). The second protective layer (3) includes a second heat insulation layer (301), and the second heat insulation layer (301) is fixedly connected to the bottom of the second corrugated cardboard layer (102). The bottom of the second heat insulation layer (301) is fixedly connected with a second waterproof layer (302), and the bottom of the second waterproof layer (302) is fixedly connected with a second wear-resistant layer (303).

4. The multi-layer composite corrugated cardboard according to claim 3, wherein: Both the first heat insulation layer (201) and the second heat insulation layer (301) are made of aluminum foil heat insulation cotton. Both the first waterproof layer (202) and the second waterproof layer (302) are made of waterproof film. Both the first wear-resistant layer (203) and the second wear-resistant layer (303) are made of a wear-resistant and corrosion-resistant polymer material obtained by compounding high-performance wear-resistant ceramic particles and modified toughened resin.

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