Corrugated board with composite structure

By incorporating reinforcing ribs and hollow core column support structures into corrugated cardboard, the deformation problem of corrugated cardboard under uneven stress is solved, achieving higher tensile strength and impact resistance.

CN223723496UActive Publication Date: 2025-12-26ANQING HUANTAI NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202520127679.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-12-26
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

The existing corrugated cardboard has poor tear strength, burst strength and tensile strength of the face paper, which makes it easy to deform under uneven stress, especially at the troughs, making it unusable.

Method used

A composite corrugated cardboard structure was designed, comprising face paper, core paper and liner paper, with reinforcing ribs at the crests and troughs, and a hollow cylindrical core and support structure inside, which are fixed by adhesive. The support structure is composed of flip-up plates to enhance longitudinal and transverse tensile strength.

Benefits of technology

It improves the overall tensile strength of corrugated cardboard, prevents deformation, enhances the impact resistance of corrugated cardboard, and ensures the protection of the products inside the packaging during transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a corrugated board with a composite structure, which sequentially comprises surface paper, first-layer corrugated paper, core paper, second-layer corrugated paper and inner paper, wave crest ends and wave trough ends of the first-layer corrugated paper and the second-layer corrugated paper are provided with reinforcing ribs, a plurality of horizontally arranged core columns are arranged in the first-layer corrugated paper and the second-layer corrugated paper, and a plurality of groups of supporting structures are arranged on the core columns. The corrugated paper board has the advantages that the reinforcing ribs with the plastic film layers and the core column structure with the clamping board are arranged between the corrugated paper, so that the transverse and longitudinal tensile strength of the corrugated paper board is enhanced, and the corrugated paper board is not prone to deformation after being impacted.
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Description

TECHNICAL FIELD

[0001] The utility model mainly relates to corrugated paperboard technical field, specifically relates to a composite structure corrugated paperboard. BACKGROUND

[0002] Corrugated paperboard as the most important, the most widely used packaging material, can play the role of buffering external impact in the transportation process, so it can protect the product in the transportation process, at the same time, has the advantages of light weight, low cost, easy processing, convenient storage etc.In the transportation process, the product in the package often collides with corrugated paperboard.

[0003] The inventor found the following defects in the specific embodiment operation process:

[0004] Because the existing corrugated paperboard structure adopts the face paper's tear strength, the breaking resistance and the tensile strength are poor, the wear and tear easily lead to the damage of corrugated paperboard, therefore, at present, multiple corrugated paperboards are used to increase the strength, but the support strength of the two wave crest corresponding places of multiple corrugated paperboards is relatively strong, the two wave trough corresponding places are relatively poor, if the overall stress of corrugated paperboard is relatively uniform, then corrugated paperboard will not appear deformation etc.But in the case of uneven stress, that is, when the stress of the two wave trough corresponding places of corrugated paperboard is large, corrugated paperboard surface is still prone to appear concave, and it cannot be used again after deformation.

[0005] It should be noted that the above content belongs to the technical cognition of the inventor, because the technical content of the field is vast and complex, therefore the above content of the present application does not necessarily constitute the prior art. CONTENT OF THE UTILITY MODEL

[0006] 1. The technical problem to be solved by the utility model:

[0007] The utility model provides a kind of composite structure corrugated paperboard to solve the technical problems existing in the above background technology.

[0008] 2. Technical scheme:

[0009] To achieve the above purpose, the technical scheme provided by the utility model is: a kind of composite structure corrugated paperboard, face paper, a layer of corrugated paper, core paper, two layers of corrugated paper and inner paper are sequentially included, the wave crest end of the one layer corrugated paper and the two layer corrugated paper and the wave trough end are equipped with reinforcing rib, the one layer corrugated paper, the two layer corrugated paper are equipped with multiple core columns arranged horizontally in, the core column has multiple sets of support structures on it.

[0010] Further optimization, the one layer corrugated paper and the two layer corrugated paper are all equipped with installation slot matched with the core column, and the installation slot is located on the longitudinal section of the core column.

[0011] Further optimization, the core column is hollow cylindrical, and is fixed with the one layer corrugated paper, the two layer corruggated paper through adhesive.

[0012] Further optimization, a plurality of the support structure and the core column are integrally formed structure, a plurality of the support structure respectively with the wave surface of the one layer corrugated paper, the two layer corrugated paper abut.

[0013] Further optimization, the support structure includes a plurality of reversible cardboards, and a plurality of the cardboards are equidistantly arranged in the circumferential direction of the core column.

[0014] Further optimization, the reinforcing rib has a plastic film layer, and the plastic film layer is a plurality of line-shaped distributions in the reinforcing rib.

[0015] Further optimization, the face paper and the lining paper are provided with nylon mesh surfaces on the side close to the reinforcing rib.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the technical scheme has the beneficial effects that:

[0018] The utility model discloses reasonable in design, through setting up the reinforcing rib with plastic film layer and the core column structure with cardboards between corrugated paper, realize the tensile strength of enhancing corrugated paperboard horizontal, longitudinal, make corrugated paperboard not easy to deform after being impacted.

[0019] It should be noted that the structures not introduced in the utility model are the same as the prior art or can be realized by using the prior art, and details are not repeated here since they do not involve the design points and improvement direction of the utility model. DRAWINGS

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is another angle whole structure schematic diagram of the utility model;

[0022] Figure 3 It is the core column structure schematic diagram of the utility model; Figure 1 It is the enlarged schematic diagram of A place in the middle;

[0023] Figure 4 It is the core column structure schematic diagram of the utility model.

[0024] REFERENCE SIGNS:

[0025] 1, face paper; 2, one layer corrugated paper; 3, core paper; 4, two layer corrugated paper; 5, lining paper; 6, reinforcing rib; 7, core column; 8, support structure; 801, cardboard; 9, plastic film layer; 10, nylon mesh surface. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0027] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with", "provided in" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. EMBODIMENT

[0030] Referring to the drawings Figures 1-4 A composite structure corrugated board comprises, in sequence, a face paper 1, a layer of corrugated paper 2, a core paper 3, a second layer of corrugated paper 4 and an inner paper 5. The peak end and the valley end of the layer of corrugated paper 2 and the second layer of corrugated paper 4 are provided with reinforcing ribs 6. The layer of corrugated paper 2 and the second layer of corrugated paper 4 are provided with a plurality of horizontally arranged core columns 7. The core columns 7 are provided with a plurality of sets of support structures 8.

[0031] The installation groove is located on the longitudinal section of the core column 7, the core column 7 is a hollow cylindrical shape, and is fixed between the first corrugated paper 2 and the second corrugated paper 4 through an adhesive, the core column 7 is transversely inserted through the first corrugated paper 2 and the second corrugated paper 4, and the contact surface of the corrugated paper and the core column 7 is coated with the adhesive.

[0032] The plurality of support structures 8 are integrally formed with the core column 7, the plurality of support structures 8 are respectively abutted with the wave surfaces of the first corrugated paper 2 and the second corrugated paper 4, the support structure 8 comprises a plurality of reversible clamping plates 801, the plurality of clamping plates 801 are equidistantly arranged in the circumferential direction of the core column 7, the core column 7 is provided with an embedding groove for accommodating the clamping plate 801, the clamping plate 801 is in a folded state before being inserted into the corrugated paper, after the clamping plate 801 is inserted into the corrugated paper, the core column 7 is slightly retracted, so that the clamping plate 801 is unfolded in the opposite direction of the embedding groove and clamped into the wave surface of the corrugated paper, thereby achieving the auxiliary supporting effect between the corrugated paper.

[0033] The reinforcing rib 6 is provided with a plastic film layer 9, the plastic film layer 9 is in the form of a plurality of lines and is distributed in the reinforcing rib 6, the reinforcing rib 6 is distributed at the wave peak end and the wave valley end of the corrugated paper layer, the first corrugated paper 2 and the second corrugated paper 4 are connected with the face paper 1, the core paper 3 and the back paper 5 through the reinforcing rib 6, the plastic film layer 9 has the effect of protecting the reinforcing rib 6 and preventing breakage and water, and the longitudinal tensile strength of the corrugated paper as a whole is enhanced through the reinforcing rib 6.

[0034] The face paper 1 and the back paper 5 are provided with nylon mesh surfaces 10 on the side close to the reinforcing rib 6, the toughness of the face paper 1 and the back paper 5 is enhanced through the nylon mesh surface 10, the tensile strength is improved, the nylon mesh surface 10 serves as the first layer of protection against internal and external impact of the corrugated paper, and the longitudinal tensile strength of the corrugated paper as a whole is further enhanced.

[0035] In the embodiment, the double-layer corrugated paper is adopted, the reinforcing rib 6 with the plastic film layer 9 is used to connect the first corrugated paper 2 and the second corrugated paper 4 between the corrugated paper and the face paper 1, the core paper 3 and the back paper 5, the longitudinal tensile strength is improved, the core column 7 with the clamping plate 801 is adopted, the core column 7 is transversely inserted into the corrugated paper for fixation, the clamping plate 801 is abutted with the wave surface of the corrugated paper, the auxiliary supporting force is provided, and the transverse tensile strength is improved.

[0036] The above-described embodiment only expresses a certain implementation manner of the present application, the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application; it should be pointed out that, for ordinary skilled persons in the art, a plurality of modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application; therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A composite structure corrugated board comprising, in order, a face paper (1), a layer of corrugated paper (2), a core paper (3), a second layer of corrugated paper (4) and a back paper (5), characterized in that: The peak end and the valley end of the first layer of corrugated paper (2) and the second layer of corrugated paper (4) are provided with reinforcing ribs (6), the first layer of corrugated paper (2) and the second layer of corrugated paper (4) are provided with a plurality of horizontally arranged core columns (7), and the core columns (7) have a plurality of support structures (8).

2. A composite corrugated paperboard according to claim 1, characterized in that: The first layer of corrugated paper (2) and the second layer of corrugated paper (4) are provided with mounting grooves matched with the core columns (7), and the mounting grooves are located on the longitudinal section of the core columns (7).

3. A composite corrugated paperboard according to claim 1, wherein: The core column (7) is a hollow cylindrical shape and is fixed between the first layer of corrugated paper (2) and the second layer of corrugated paper (4) by an adhesive.

4. A composite structural corrugated paperboard according to claim 1, wherein: A plurality of support structures (8) are integrally formed with the core column (7), and a plurality of support structures (8) respectively abut the wave surface of the first layer of corrugated paper (2) and the second layer of corrugated paper (4).

5. A composite structural corrugated paperboard according to claim 1, wherein: The support structure (8) includes a plurality of reversible clamping plates (801), and a plurality of clamping plates (801) are arranged at equal distances in the circumferential direction of the core column (7).

6. A composite structural corrugated paperboard according to claim 1, wherein: The reinforcing rib (6) has a plastic film layer (9) therein, and the plastic film layer (9) is a plurality of line-shaped distributions in the reinforcing rib (6).

7. A composite structural corrugated paperboard according to claim 1, wherein: The surface paper (1) and the inner paper (5) are provided with nylon mesh surfaces (10) on the side close to the reinforcing rib (6).