Corrugated paper structure with high compressive strength

By introducing return springs, compressive components and multidirectional strength layout into the corrugated paper structure, the problem of traditional corrugated paperboard being easily deformed and damaged under heavy load or long-term pressure is solved, and the compression and tear resistance of corrugated paper is significantly improved.

CN222781872UActive Publication Date: 2025-04-22ZHUJI HONGMA PACKAGING CO LTD
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Patent Information

Application Number
CN202421398262.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-19
Publication Date
2025-04-22
Estimated Expiration
2034-06-19

AI Technical Summary

Technical Problem

Traditional corrugated cardboard is prone to deformation and damage after being subjected to heavy loads or being subjected to long-term pressure.

Method used

A corrugated paper structure with high compressive strength is adopted, including outer paper, corrugated layer and compressive components. The outer layer of paper is provided with a coating layer and cross-section through holes, the grooves of the corrugated layer are arranged in a V-shaped shape, and the compressive resistance assembly includes a transverse plate, a support plate and a return spring, which enhances the compressive resistance of the structure through hollow columns and triangular blocks.

Benefits of technology

The elastic connection is provided through the return spring, which increases the elasticity of the corrugated layer, and the compressive component absorbs impact force and pressure, reducing the pressure directly acting on the corrugated paper. The multidirectional strength layout of the outer paper prevents the material from being damaged by force in a single direction, improving the compressive and tear resistance of the corrugated paper.

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Abstract

The utility model relates to the technical field of corrugated paper, and discloses a corrugated paper structure with high compressive strength, which comprises two groups of outer layer paper, a corrugated layer is fixedly connected between the two groups of outer layer paper, a compression-resistant component is arranged in a groove of the corrugated layer, the compression-resistant component comprises a transverse plate, and the transverse plate is fixedly connected with the corrugated layer. And two sets of symmetrically-arranged supporting plates are slidably connected to the interiors of the transverse plates, the two sets of supporting plates are fixedly connected with the inner wall of the corrugated layer correspondingly, and the two sets of transverse plates are elastically connected through reset springs. According to the utility model, elastic connection is provided through the reset springs, so that the two groups of transverse plates move back to back, the corrugated layer is supported, the corrugated layer is restored to the original position after being pressed, the rebound resilience of the corrugated layer is increased, repeated pressure change is resisted, and the hollow columns made of rubber materials are used as buffer materials to absorb impact force and pressure, so that the service life of the corrugated layer is prolonged. And the pressure directly acting on the corrugated paper is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paper, in particular to a corrugated paper structure with high compressive strength. Background Art

[0002] Corrugated board is a composite material consisting of at least one layer of corrugated paper and a layer of flat kraft paper fixed by an adhesive. Due to its light weight, low cost, strong recyclability and good cushioning properties, corrugated board is widely used in the packaging industry.

[0003] Although corrugated paperboard has been widely used in the packaging field, the traditional standard corrugated paperboard is prone to deformation and damage after being subjected to heavy loads or long-term pressure. Therefore, a corrugated paper structure with high compressive strength is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a corrugated paper structure with high compressive strength, aiming to improve the problem that the traditional corrugated paperboard standard corrugated paperboard in the prior art is easily deformed and damaged after being subjected to heavy loads or long-term pressure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a corrugated paper structure with high compressive strength, including an outer layer of paper, wherein the outer layer of paper is provided in two groups, a corrugated layer is fixedly connected between the two groups of outer layers of paper, a pressure-resistant component is provided in the groove of the corrugated layer, and the pressure-resistant component includes a cross plate, and two groups of symmetrically arranged support plates are slidably connected inside the cross plate, the two groups of support plates are respectively fixedly connected to the inner wall of the corrugated layer, and the two groups of cross plates are elastically connected by a reset spring.

[0006] As a further description of the above technical solution:

[0007] A triangular block is fixedly connected to the surface of the transverse plate, and hollow columns are arranged between the two sides of the triangular block and the outer paper layer and between the transverse plate and the groove of the corrugated layer.

[0008] As a further description of the above technical solution:

[0009] The hollow column is made of rubber material.

[0010] As a further description of the above technical solution:

[0011] A coating layer is arranged on the surface of the outer paper, and the coating layer is made of polypropylene material.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the outer paper layer is provided with through holes that cross each other in a vertical and horizontal direction, and nylon threads are fixedly connected in the through holes.

[0014] As a further description of the above technical solution:

[0015] The grooves on the surface of the corrugated layer are arranged in a V shape.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the utility model, the elastic connection is provided by the reset spring, so that the two sets of horizontal plates move in opposite directions, thereby supporting the corrugated layer, and returning to the original position after the corrugated layer is subjected to pressure, increasing the resilience of the corrugated layer and resisting repeated pressure changes. The hollow column of rubber material is used as a buffer material to absorb impact and pressure, and reduce the pressure directly acting on the corrugated paper. At the same time, it helps the reset spring to work, so that the corrugated paper structure can more effectively restore its shape after being subjected to pressure.

[0018] 2. In the utility model, the multi-directional strength of the material is increased through the layout of the through holes, which helps the outer paper to evenly disperse pressure and tension in multiple directions, prevents the material from being damaged by force in a single direction, and can reduce the total weight of the material while maintaining the necessary structural strength. The presence of nylon thread can prevent the outer paper from tearing and expanding when subjected to external force, providing additional protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a corrugated paper structure with high compressive strength proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the outer paper splitting structure of a corrugated paper structure with high compressive strength proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the enlarged structure of point A of a corrugated paper structure with high compressive strength proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the split structure of a support plate of a corrugated paper structure with high compressive strength proposed by the utility model.

[0023] Legend:

[0024] 1. Outer paper; 11. Laminating layer; 12. Nylon thread; 2. Corrugated layer; 3. Compression-resistant component; 31. Cross plate; 32. Support plate; 33. Return spring; 34. Triangular block; 35. Hollow column. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a corrugated paper structure with high compressive strength, including an outer paper 1, and the outer paper 1 is made of high-strength kraft paper tear-resistant material. A coating layer 11 is provided on the surface of the outer paper 1, and the coating layer 11 is made of polypropylene material. The polypropylene coating layer 11 increases the water resistance and durability of the corrugated paper surface, and enhances the chemical corrosion resistance. The inner wall of the outer paper 1 is provided with vertical and horizontal through holes, and nylon wires 12 are fixedly connected in the through holes. The layout of the through holes increases the multi-directional strength of the material, helps the outer paper 1 to evenly disperse pressure and tension in multiple directions, prevents the material from being damaged by force in a single direction, and can reduce the total weight of the material while maintaining the necessary structural strength. The presence of the nylon wire 12 can prevent the outer paper 1 from tearing and expanding when subjected to external force, especially when packaging sharp or heavy objects, providing additional protection.

[0027] Reference Figure 2 - Figure 4 By opening crisscross through holes on the inner wall of the outer paper 1 of the corrugated paper and fixing and connecting nylon wires 12, not only the compression and tearing resistance of the material is enhanced, but also the stability and safety when carrying heavy loads are guaranteed.

[0028] Reference Figure 2 - Figure 4 , two groups of outer paper 1 are provided, and a corrugated layer 2 is fixedly connected between the two groups of outer paper 1. The grooves on the surface of the corrugated layer 2 are arranged in a V shape, and the corrugated layer 2 helps to better disperse the pressure. A pressure-resistant component 3 is arranged in the groove of the corrugated layer 2, and the pressure-resistant component 3 enhances the pressure resistance of the corrugated paper structure. The pressure-resistant component 3 includes a transverse plate 31, and two groups of symmetrically arranged support plates 32 are slidably connected inside the transverse plate 31. The support plates 32 are used to install the two groups of support plates 32. The two groups of support plates 32 are respectively fixedly connected to the inner wall of the corrugated layer 2, and the two groups of transverse plates 31 are elastically connected by a reset spring 33. The reset spring 33 provides an elastic connection, so that the two groups of transverse plates 31 move back to back, thereby supporting the corrugated layer 2, and after the corrugated layer 2 is subjected to pressure, it returns to the original position, increases the resilience of the corrugated layer 2, and resists repeated pressure changes.

[0029] Reference Figure 2 - Figure 4A triangular block 34 is fixedly connected to the surface of the horizontal plate 31. Hollow columns 35 are arranged between the two sides of the triangular block 34 and the outer paper 1 and between the horizontal plate 31 and the groove of the corrugated layer 2. The hollow columns 35 are made of rubber material. The hollow columns 35 made of rubber material can absorb impact and pressure as a buffer material, and reduce the pressure directly acting on the corrugated paper. At the same time, the elasticity of the rubber also helps the work of the reset spring 33, so that the corrugated paper structure can more effectively restore its shape after being subjected to pressure.

[0030] Working principle: When the corrugated paper structure is subjected to external pressure, the outer paper 1 will first serve as the main bearing surface to disperse and bear the pressure. The high-strength kraft paper tear-resistant material of the outer paper 1 ensures its good compression and tear resistance, while the polypropylene coating layer 11 enhances its waterproofness and durability, allowing the corrugated paper structure to maintain stability in various environments.

[0031] Then, the corrugated layer 2 starts to work. Its V-shaped groove design can effectively disperse and reduce the pressure, preventing the corrugated paper from having concentrated stress at the stress point. When the pressure disappears, the return spring 33 will restore its shape, push the cross plate 31 back to its original position, and restore the corrugated paper structure to its original state.

[0032] In this process, the triangular blocks 34 and the hollow columns 35 also play a key role. The triangular blocks 34 can enhance the support force of the cross plate 31, making it more stable. The hollow columns 35, as a buffer material, can absorb impact and pressure, further protecting the corrugated paper structure from damage.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corrugated paper structure with high compressive strength, comprising an outer layer of paper (1), characterized in that: The outer paper (1) is provided with two groups, a corrugated layer (2) is fixedly connected between the two groups of the outer paper (1), a pressure-resistant component (3) is provided in the groove of the corrugated layer (2), and the pressure-resistant component (3) comprises a transverse plate (31), and two groups of symmetrically arranged support plates (32) are slidably connected inside the transverse plate (31), the two groups of support plates (32) are respectively fixedly connected to the inner wall of the corrugated layer (2), and the two groups of transverse plates (31) are elastically connected via a return spring (33).

2. A corrugated paper structure with high compressive strength according to claim 1, characterized in that: A triangular block (34) is fixedly connected to the surface of the transverse plate (31), and hollow columns (35) are arranged between the two sides of the triangular block (34) and the outer paper (1) and between the transverse plate (31) and the groove of the corrugated layer (2).

3. A corrugated paper structure with high compressive strength according to claim 2, characterized in that: The hollow column (35) is made of rubber material.

4. A corrugated paper structure with high compressive strength according to claim 1, characterized in that: A coating layer (11) is provided on the surface of the outer paper (1), and the coating layer (11) is made of polypropylene material.

5. A corrugated paper structure with high compressive strength according to claim 1, characterized in that: The inner wall of the outer paper (1) is provided with through holes that intersect in a vertical and horizontal direction, and nylon threads (12) are fixedly connected in the through holes.

6. A corrugated paper structure with high compressive strength according to claim 1, characterized in that: The grooves on the surface of the corrugated layer (2) are arranged in a V shape.