High-strength corrugated paper with double corrugated paper cores

Abstract

The utility model relates to the field of corrugated paper, and discloses high-strength double-corrugated-paper-core corrugated paper which comprises two side plates and a middle plate located between the two side plates, a plurality of sets of middle supporting assemblies are arranged between the middle plate and the side plates, and the middle supporting assemblies, the middle plate and the side plates are the same in length. The middle supporting assembly is composed of two mirrored C-shaped supporting plates, and when the middle supporting assembly is pressed, pressure can be dispersed through ingenious deformation of the middle supporting assembly. When the side plates bear pressure, deformation of the C-shaped supporting plates enables the end protrusions in the same rectangular recess or the middle plate groove to slide and be attached to each other, then transverse extrusion force is generated, part of vertical pressure is effectively counteracted, the compressive strength of the whole structure is greatly improved, and compared with common double-corrugated paper, the double-corrugated paper has the advantages of being simple in structure and convenient to use. Stacking pressure of goods with multiple weight can be borne, and sinking and damage are avoided.

Description

Technical Field

[0001] This utility model relates to the field of corrugated paper, specifically a high-strength double-corrugated core corrugated paper. Background Technology

[0002] In the packaging industry, the performance requirements for corrugated paper are constantly increasing. With the rapid development of the logistics industry, goods face more complex and changeable environments and external impacts during transportation and storage. Traditional single-wall or ordinary double-wall corrugated paper is gradually becoming unable to meet the demands in terms of strength and protective performance.

[0003] During transportation, frequent stacking and collisions during handling can easily cause ordinary corrugated cardboard to dent or tear, resulting in damage to the contents. This is especially true for packaging heavy, high-value products, where the requirements for the compression and impact resistance of corrugated cardboard are extremely stringent. Furthermore, during warehousing, humid environments can also corrode corrugated cardboard, significantly reducing its strength.

[0004] Existing conventional double-wall corrugated paperboard has a relatively simple structure, typically relying solely on a single corrugated shape and paper material for support. Under high-intensity external forces, the corrugations are easily flattened, failing to effectively distribute pressure and leading to overall structural failure. Furthermore, conventional paper materials lack sufficient moisture resistance and abrasion resistance, resulting in a short service life in harsh environments. Therefore, we have proposed a high-strength double-wall corrugated paperboard. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a high-strength double-walled corrugated paper core, which solves the aforementioned problems.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a high-strength double-corrugated core corrugated paper, comprising two side plates and an intermediate plate located between the two side plates, wherein multiple sets of intermediate support assemblies are provided between the intermediate plate and the side plates, and the intermediate support assemblies, the intermediate plate and the side plates have the same length.

[0007] Preferably, the side panel consists of a first panel and oil paper, with the oil paper disposed on the surface of the first panel.

[0008] Preferably, the intermediate support assembly consists of two mirrored C-shaped support plates. The first panel has a rectangular recess at the position corresponding to the end of the C-shaped support plate. The end of the C-shaped support plate has an end protrusion integrally formed at the position corresponding to the rectangular recess. The end protrusion engages with the rectangular recess. The end protrusions on the ends of the two corresponding C-shaped support plates in two adjacent intermediate support assemblies are engaged in the same rectangular recess.

[0009] Preferably, a middle horizontal plate is fixedly installed in the recess of each of the two C-shaped support plates, and the middle horizontal plates on the corresponding two C-shaped support plates in the two adjacent middle support assemblies are in contact with each other.

[0010] Preferably, the intermediate plate has an intermediate plate groove at the end protrusion of the other end of the C-shaped support plate, and the intermediate plate groove is engaged with the corresponding end protrusion. In two adjacent intermediate support components, the corresponding C-shaped support plates, with the end protrusion of the C-shaped support plate corresponding to one end of the intermediate plate, are engaged in the same intermediate plate groove.

[0011] Compared with the prior art, this utility model provides a high-strength double-walled corrugated paperboard with the following advantages:

[0012] Excellent compressive strength

[0013] Unique structure enhances support: The central support assembly consists of two mirrored C-shaped support plates. This special shape can cleverly distribute pressure through its own deformation when under pressure. When the side plates are under pressure, the deformation of the C-shaped support plates causes the end protrusions in the same rectangular recess or central plate groove to slide and fit together, thereby generating lateral compressive force, effectively offsetting part of the vertical pressure, and greatly improving the overall compressive strength of the structure. Compared with ordinary double corrugated paper, it can withstand the stacking pressure of goods several times the weight without denting or breaking.

[0014] The intermediate horizontal plate works together to resist pressure: The intermediate horizontal plate, which is fixed in the recess of the C-shaped support plate, moves laterally when the C-shaped support plate deforms. The intermediate horizontal plates of adjacent components squeeze each other, further dispersing the external force and forming multiple lines of resistance to pressure. This allows the corrugated paper to maintain a stable structure when facing high-intensity external impacts, ensuring the safety of the contents inside.

[0015] Excellent protective performance

[0016] Enhanced moisture resistance: The side panels feature a design that combines the first panel with oil paper. The oil paper adheres tightly to the surface of the first panel, acting like a waterproof armor for the side panels. In humid storage environments, this effectively prevents moisture penetration and avoids a decrease in paper strength due to dampness. Even when stored in high-humidity warehouses for extended periods, the corrugated paper maintains good structural strength, preventing damage to packaged goods from moisture.

[0017] Enhanced abrasion resistance: Oiled paper is not only waterproof but also possesses a certain degree of abrasion resistance. Frequent friction is unavoidable during cargo handling and transportation. Oiled paper reduces wear and tear caused by friction between the first panel and other objects, extending the lifespan of the corrugated paper and lowering packaging costs. It is especially suitable for packaging goods for long-distance transportation and repeated handling.

[0018] Wide applicability

[0019] Adaptable to complex logistics processes: With its strong compression resistance and protective performance, this high-strength double-walled corrugated paper can easily cope with complex situations such as cargo stacking and handling collisions during logistics. Whether it is the packaging of heavy machinery parts or high-value electronic products, it can provide reliable protection and greatly reduce the damage rate of goods during transportation.

[0020] Adaptable to diverse storage environments: Its excellent moisture-proof performance allows it to adapt to storage environments with varying humidity levels. Whether in dry northern warehouses or humid southern warehouses, it can maintain stable performance and ensure that the quality of packaged goods is not affected by the environment, providing great convenience for the warehousing process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 for Figure 1 A magnified view of part A in the diagram.

[0023] In the figure: 1. Intermediate support assembly; 2. Intermediate plate; 3. Side plate; 4. First panel; 5. Oil paper; 6. Rectangular recess; 7. C-shaped support plate; 8. End protrusion; 9. Intermediate horizontal plate; 10. Intermediate plate groove. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-2 A high-strength double-walled corrugated paper core includes two side plates 3 and an intermediate plate 2 located between the two side plates 3. Multiple sets of intermediate support components 1 are provided between the intermediate plate 2 and the side plates 3. The intermediate support components 1, the intermediate plate 2 and the side plates 3 have the same length. By adding the side plates 3, the strength and support effect of this product can be increased.

[0026] Furthermore, the side panel 3 is composed of a first panel 4 and oil paper 5, with the oil paper 5 disposed on the surface of the first panel 4.

[0027] Furthermore, the intermediate support assembly 1 consists of two mirrored C-shaped support plates 7. The first panel 4 has a rectangular recess 6 at the position corresponding to the end of the C-shaped support plate 7. The end of the C-shaped support plate 7 has an end protrusion 8 integrally formed at the position corresponding to the rectangular recess 6. The end protrusion 8 is engaged with the rectangular recess 6. The end protrusions 8 on the ends of the two corresponding C-shaped support plates 7 in two adjacent intermediate support assemblies 1 are engaged in the same rectangular recess 6. When the side plate 3 is pressed, the two adjacent intermediate support assemblies 1 are subjected to pressure. At this time, the C-shaped support plate 7 deforms, and then the end protrusions 8 located in the same rectangular recess 6 will slide towards each other until the two are in contact. The lateral extrusion force offsets part of the extrusion force, increasing the overall strength.

[0028] Furthermore, a middle horizontal plate 9 is fixedly installed in the recess of each of the two C-shaped support plates 7. The middle horizontal plates 9 on the corresponding two C-shaped support plates 7 in the two adjacent middle support components 1 fit together. When the C-shaped support plate 7 is deformed and subjected to pressure, the middle horizontal plate 9 will move laterally. At this time, the end of the middle horizontal plate 9 on the deformed C-shaped support plate 7 will press against the middle horizontal plate 9 on another adjacent C-shaped support plate 7.

[0029] Furthermore, a middle plate groove 10 is provided at the end protrusion 8 of the other end of the middle plate 2 corresponding to the C-shaped support plate 7. The middle plate groove 10 is engaged with the corresponding end protrusion 8. The two C-shaped support plates 7 in the two adjacent middle support components 1, with the C-shaped support plate 7 corresponding to one end of the middle plate 2, have their end protrusions 8 engaged in the same middle plate groove 10. When the side plate 3 is pressed, the two adjacent middle support components 1 are subjected to pressure. At this time, the C-shaped support plate 7 deforms, and then the end protrusions 8 located in the same middle plate groove 10 will slide towards each other until the two are in contact. The lateral extrusion force offsets part of the extrusion force, increasing the overall strength.

[0030] Structural Description:

[0031] Side panel 3

[0032] The side panel consists of a first panel 4 and an oil paper 5, with the oil paper 5 placed on the surface of the first panel 4. The first panel 4, as the main body of the side panel, provides a basic support frame for the entire corrugated paper structure. Its material is usually high-strength paper to ensure that it has a certain strength and toughness when subjected to pressure, preventing it from being easily deformed or damaged by external forces.

[0033] The presence of the oil paper 5 significantly enhances the protective performance of the side panel. In practical applications, whether in humid environments or encountering minor water stains during transportation, the oil paper 5 effectively prevents moisture from penetrating the first panel 4, avoiding a decrease in strength due to dampness. Furthermore, the oil paper 5 also possesses a certain degree of abrasion resistance, reducing wear and tear caused by friction between the first panel 4 and other objects during product handling and stacking, thus extending the service life of the side panel. Looking further ahead, with technological advancements, it is possible that self-healing oil paper will be developed in the future, capable of automatically repairing itself when subjected to minor scratches or damage, further enhancing the protective capabilities of the side panel.

[0034] Intermediate plate 2

[0035] The middle plate 2 is located between the two side plates 3. It works closely with the side plates 3 and the middle support component 1 to jointly construct a stable corrugated paper structure. The middle plate 2 not only connects the two side plates 3, but also shares some of the pressure from the outside. Its material selection is usually similar to that of the side plates 3, but its thickness and strength design are optimized according to the actual use scenario and performance requirements of the entire corrugated paper.

[0036] In packaging scenarios with high space requirements, the middle board 2 can be made of thinner but higher-strength materials, minimizing weight and saving space while maintaining overall structural strength. Conversely, when supporting heavier items, the thickness and strength of the middle board 2 will increase accordingly. Extending this concept, future middle boards 2 may integrate functional materials, such as shock-absorbing materials, effectively cushioning the corrugated cardboard packaging when it is subjected to vibration, thus better protecting the contents.

[0037] Intermediate support component 1

[0038] The intermediate support assembly 1 consists of two mirrored C-shaped support plates 7, which is a key component in enhancing the strength of the entire corrugated paper structure. The design of the C-shaped support plate 7 has unique mechanical advantages; its curved shape can disperse and offset some of the external force through its own deformation when subjected to pressure.

[0039] The end protrusion 8 of the C-shaped support plate 7, integrally formed at its end, engages with the rectangular recess 6 on the first panel 4 and the intermediate plate groove 10 on the intermediate plate 2. This engagement method ensures the connection stability between the component and the side plate 3 and the intermediate plate 2, and also plays an important role under stress. When the side plate 3 is subjected to pressure, the C-shaped support plate 7 in the adjacent intermediate support component 1 deforms, and the end protrusion 8 in the same rectangular recess 6 or intermediate plate groove 10 slides closer to each other until they fit together. By generating lateral compressive force, it offsets part of the vertical pressure, significantly improving the compressive strength of the overall structure.

[0040] The intermediate horizontal plate 9, fixedly installed at the recesses of the two C-shaped support plates 7, also plays a crucial role. When the C-shaped support plate 7 deforms, the intermediate horizontal plate 9 moves laterally, and the intermediate horizontal plates 9 of adjacent components press against each other, further dispersing and resisting external forces. From a broader perspective, future C-shaped support plates 7 may utilize new composite materials that are not only stronger but also have shape memory, allowing them to quickly recover their original shape after deformation under stress, thus better coping with repeated pressure impacts. Simultaneously, the design of the intermediate horizontal plate 9 can be further optimized, for example, by adopting an adjustable length structure to automatically adjust the support range according to actual stress conditions, improving the adaptability and overall strength of the support assembly.

[0041] 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 high-strength double-corrugated paper core corrugated paper, characterized by, The utility model provides a kind of intermediate support assembly (1) comprising two side plates (3) and intermediate plate (2) between two side plates (3), multiple sets of intermediate support assembly (1) are arranged between intermediate plate (2) and side plate (3), and the length of intermediate support assembly (1), intermediate plate (2) and side plate (3) is same; The side plate (3) is composed of a first panel (4) and oil paper (5), and the oil paper (5) is arranged on the surface of the first panel (4); The intermediate support assembly (1) is composed of two mirror image C-shaped support plates (7), the first panel (4) is provided with a rectangular recess (6) corresponding to the position of the end of the C-shaped support plate (7), the end of the C-shaped support plate (7) is integrally formed with an end protrusion (8) corresponding to the position of the rectangular recess (6), the end protrusion (8) is clamped with the rectangular recess (6), and the end protrusions (8) on the ends of the corresponding two C-shaped support plates (7) in the adjacent two intermediate support assemblies (1) are clamped in the same rectangular recess (6).

2. A high-strength double-wall corrugated paper according to claim 1, characterized in that: The recesses of the two C-shaped support plates (7) are fixedly installed with intermediate cross plates (9), and the intermediate cross plates (9) on the corresponding two C-shaped support plates (7) in the adjacent two intermediate support assemblies (1) are mutually adhered.

3. A high strength double wall corrugated paper according to claim 1, wherein: The intermediate plate (2) is provided with an intermediate plate groove (10) corresponding to the position of the end protrusion (8) at the other end of the C-shaped support plate (7), the intermediate plate groove (10) is clamped with the corresponding end protrusion (8), and the end protrusions (8) on the ends of the corresponding two C-shaped support plates (7) in the adjacent two intermediate support assemblies (1) are clamped in the same intermediate plate groove (10).

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