High-strength light-weight corrugated paper packaging structure

Abstract

The utility model relates to the technical field of corrugated paper packaging, and discloses a high-strength light-weight corrugated paper packaging structure which comprises a corrugated paper board body, a reinforcing rib layer is arranged in the corrugated paper board body, and a buffer layer is arranged on the inner wall of the corrugated paper board body. According to the high-strength light-weight corrugated paper packaging structure, the reinforcing rib layer is arranged in the corrugated board body, the reinforcing rib layer is matched with the corrugated board body to jointly share loads, corrugated medium paper is prevented from deforming, the stress resistance and the bending damage resistance effect of the corrugated board body are improved, the reinforcing rib layer is matched with the buffer layers to be evenly distributed on the inner side of the corrugated board body, and the service life of the corrugated board body is prolonged. When the inner side of the corrugated board body bears stress, the buffer layer is matched to absorb impact energy through elastic deformation and reduce impact force transmitted to objects in the corrugated board body, and the partition layer is matched to increase the center supporting strength and partition space of the inner side of the corrugated board body, so that the overall damage resistance effect of the corrugated board body is better, the weight increase is small, and the service life is long.

Description

Technical Field

[0001] This utility model belongs to the field of corrugated paper packaging technology, and in particular relates to a high-strength lightweight corrugated paper packaging structure. Background Technology

[0002] Corrugated cardboard, a common packaging material, is widely used in the packaging of various products due to its advantages such as lightweight, low cost, and recyclability. In recent years, with the rapid development of e-commerce and logistics industries, the requirements for the strength of packaging materials have become increasingly stringent, while maintaining lightweight design to reduce transportation costs.

[0003] An existing patent (publication number: CN110606258B) discloses a corrugated cardboard packaging box, which includes a fruit box and an end cap; the fruit box has multiple fruit seats inside; the cross-section of the fruit seats is cup-shaped with a wider top and a narrower bottom, the fruit seats are arranged in rows and columns, with at least three fruit seats in each row, the distance between the central axes of adjacent fruit seats in each row is 20 cm, and there are at least two fruit seats in each column, with the distance between the central axes of the fruit seats in each column is 20 cm; the top of the fruit box is covered with an end cap; the end cap is fastened to the top of the fruit box from the inside.

[0004] Currently, the strength of corrugated cardboard commonly found on the market is mainly improved by increasing the number of cardboard layers or using high-grammage base paper, or by adding reinforcing materials such as plastic film or metal foil to the corrugated cardboard to improve its burst strength and tear resistance. However, multiple layers will lead to a significant increase in weight, and high-grammage base paper is expensive, which will affect environmental protection and recyclability. Therefore, a high-strength lightweight corrugated cardboard packaging structure is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a high-strength, lightweight corrugated paper packaging structure that offers better overall damage resistance to corrugated cardboard, with a smaller increase in weight and a longer service life. This solves the problems mentioned in the aforementioned comparative documents, such as the significant increase in weight due to multiple layers, the high cost of high-grammage base paper, and the negative impact on environmental protection and recyclability.

[0006] To achieve the above objectives, this application provides the following technical solution: a high-strength lightweight corrugated paper packaging structure, comprising a corrugated cardboard body, wherein a reinforcing rib layer is provided inside the corrugated cardboard body, a buffer layer is provided on the inner wall of the corrugated cardboard body, a partition layer is slidably connected to the inner wall of the buffer layer, and a groove is provided on the outer surface of the corrugated cardboard body.

[0007] The above solution incorporates reinforcing ribs inside the corrugated cardboard body, which work together with the cardboard body to share the load, preventing deformation of the corrugated core paper and improving the stress resistance and bending damage resistance of the cardboard body. Furthermore, a buffer layer evenly distributed on the inner side of the cardboard body absorbs impact energy through elastic deformation when the inner side is under stress, reducing the impact force transmitted to the contents. Additionally, a separator layer increases the central support strength and separation space on the inner side of the cardboard body, resulting in better overall damage resistance, a smaller increase in weight, and a longer service life.

[0008] Furthermore, the corrugated cardboard body includes a face paper, an inner paper is provided on the inner wall of the face paper, and a corrugated core paper is filled between the face paper and the inner paper.

[0009] Through the above scheme, the corrugated core paper, face paper, and liner paper work together to give the corrugated cardboard a certain degree of tear resistance, and combine them into a lightweight corrugated cardboard assembly.

[0010] Furthermore, the reinforcing layer includes transverse reinforcing ribs and longitudinal reinforcing ribs, which are distributed alternately on both sides of the corrugated core paper.

[0011] By implementing the above solution, and by setting transverse and longitudinal reinforcing ribs between the corrugated core paper and the liner paper in an alternating pattern, the connection strength between the face paper and the liner paper can be enhanced, while the load-bearing strength can also be increased, resulting in better overall tear and bending resistance of the corrugated board.

[0012] Furthermore, the buffer layer includes a honeycomb buffer paperboard, the inner wall of which is provided with honeycomb holes, and the number of honeycomb holes is set to a certain number.

[0013] The above solution uses honeycomb cushioning paperboard and honeycomb holes to form a honeycomb-shaped paperboard, which reduces the basis weight. At the same time, a cushioning layer with elastic cushioning effect is formed on the inner side of the linerboard. The honeycomb structure absorbs impact energy through elastic deformation, reducing the impact force transmitted to the contents, thereby increasing the overall service life of the corrugated paperboard and facilitating folding and recycling.

[0014] Furthermore, the outer surface of the honeycomb cushioning paperboard is provided with longitudinal grooves, and the number of longitudinal grooves is set to several, which are evenly distributed between the honeycomb holes.

[0015] The above solution, by opening multiple longitudinal grooves on the outer surface of the honeycomb cushioning cardboard and using it in conjunction with the separator layer, can increase the space inside to assist in the separation effect. Furthermore, the multiple longitudinal grooves can provide a limiting effect for the multiple separator layers, making fuller and more convenient use of the overall inner space of the corrugated cardboard.

[0016] Furthermore, the separating layer includes a separating cardboard, the outer surface of which is snapped with a second separating cardboard, the inner wall of which has a slot, and both ends of the separating cardboard are slidably connected to the inner wall of the longitudinal slot.

[0017] With the above solution, the first dividing cardboard can be slid into the inner wall of the longitudinal groove and stand vertically inside the corrugated cardboard body. It can also be horizontally locked onto the first dividing cardboard by the slot on the second dividing cardboard. This combination forms multiple divided spaces on the inner side of the corrugated cardboard body, which is convenient for storing items of different volumes.

[0018] Furthermore, the corrugated core paper is arranged in a wavy pattern.

[0019] The above scheme uses corrugated core paper with wavy shape, in conjunction with transverse and longitudinal stiffeners. The transverse stiffeners are fixed at the crests of the corrugated core paper, and the longitudinal stiffeners are fixed at the troughs of the corrugated core paper, thus forming a stiffener structure to share the load and increase the inner stress resistance of the corrugated core paper.

[0020] Furthermore, the inner wall of the groove is fixedly connected with a crack-resistant sleeve.

[0021] The above solution provides a crack-resistant sleeve on the inside of the groove, which facilitates the gripping space of the corrugated cardboard body and prevents cracking of the groove.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This high-strength, lightweight corrugated cardboard packaging structure incorporates reinforcing ribs within the corrugated cardboard body. These ribs work together with the cardboard body to share the load, preventing deformation of the corrugated core paper and enhancing the cardboard body's stress resistance and bending damage resistance. Furthermore, a cushioning layer evenly distributed on the inner side of the cardboard body absorbs impact energy through elastic deformation when the inner side is under stress, reducing the impact force transmitted to the contents. Additionally, a partition layer increases the central support strength and separation space within the cardboard body, resulting in better overall damage resistance with minimal weight increase and a longer service life. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the face paper of this utility model;

[0026] Figure 3 This is a schematic diagram of a partial cross-section of the face paper of this utility model;

[0027] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0028] Figure 5 This is a schematic diagram of the structure of the separator paperboard of this utility model.

[0029] The markings in the diagram are as follows: 1. Corrugated cardboard body; 2. Reinforcing rib layer; 3. Buffer layer; 4. Separator layer; 5. Groove; 101. Face paper; 102. Liner paper; 103. Corrugated core paper; 201. Transverse reinforcing rib; 202. Longitudinal reinforcing rib; 301. Honeycomb buffer cardboard; 302. Honeycomb holes; 303. Longitudinal groove; 401. First separator cardboard; 402. Second separator cardboard; 403. Slot; 6. Anti-cracking sleeve. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a high-strength, lightweight corrugated cardboard packaging structure includes a corrugated cardboard body 1. The corrugated cardboard body 1 has a reinforcing rib layer 2 inside, a cushioning layer 3 on its inner wall, and a partition layer 4 slidably connected to the inner wall of the cushioning layer 3. The outer surface of the corrugated cardboard body 1 has slots 5. By providing the reinforcing rib layer 2 inside the corrugated cardboard body 1, the reinforcing rib layer 2, together with the corrugated cardboard body 1, can share the load, preventing deformation of the corrugated core paper 103 and improving the stress resistance and bending damage resistance of the corrugated cardboard body 1. Furthermore, the cushioning layer 3, evenly distributed on the inner side of the corrugated cardboard body 1, can absorb impact energy through elastic deformation when the inner side is under stress, reducing the impact force transmitted to the contents. Additionally, the partition layer 4 increases the central support strength and partition space on the inner side of the corrugated cardboard body 1, resulting in better overall damage resistance, smaller weight increase, and longer service life.

[0032] Please see Figure 2 , Figure 3 and Figure 4The corrugated cardboard body 1 includes a face paper 101, an inner liner paper 102 on the inner wall of the face paper 101, and a corrugated core paper 103 filled between the face paper 101 and the inner liner paper 102. The reinforcing layer 2 includes transverse reinforcing ribs 201 and longitudinal reinforcing ribs 202, which are staggered on both sides of the corrugated core paper 103. The corrugated core paper 103 is arranged in a wavy pattern. Through the combined action of the corrugated core paper 103, the face paper 101, and the inner liner paper 102, the corrugated cardboard can have a certain tear resistance, forming a lightweight corrugated cardboard assembly. Transverse reinforcing ribs 201 and longitudinal reinforcing ribs 202 are provided between the face paper 101 and the inner paper 102, and are distributed in an alternating manner. This can enhance the connection strength between the face paper 101 and the inner paper 102, while also enhancing the load-bearing strength, making the overall tear and bending resistance of the corrugated cardboard better. Through the wavy corrugated core paper 103, in conjunction with the transverse reinforcing ribs 201 and longitudinal reinforcing ribs 202, the transverse reinforcing ribs 201 are fixed at the crests of the corrugated core paper 103, and the longitudinal reinforcing ribs 202 are fixed at the troughs of the corrugated core paper 103, thus forming a reinforcing rib structure to share the load and increase the inner stress resistance of the corrugated core paper 103.

[0033] Please see Figure 1 and Figure 3 The buffer layer 3 includes a honeycomb buffer paperboard 301. The inner wall of the honeycomb buffer paperboard 301 has honeycomb holes 302, and the number of honeycomb holes 302 is set to a certain extent. The outer surface of the honeycomb buffer paperboard 301 has longitudinal grooves 303, and the number of longitudinal grooves 303 is set to a certain extent. The longitudinal grooves 303 are evenly distributed between the honeycomb holes 302. The honeycomb buffer paperboard 301 and the honeycomb holes 302 form a honeycomb-shaped paperboard, which reduces the basis weight. At the same time, a buffer layer 3 with elastic cushioning effect is formed on the inner side of the inner paper 102. The honeycomb structure of the buffer layer 3 absorbs impact energy through elastic deformation, reduces the impact force transmitted to the contents, increases the service life of the corrugated cardboard body 1, and facilitates folding and recycling. By opening multiple longitudinal grooves 303 on the outer surface of the honeycomb buffer paperboard 301 and cooperating with the separator layer 4, the space inside can be increased to assist the separation effect. The multiple longitudinal grooves 303 can also provide a limiting effect for multiple separator layers 4, making the overall internal space of the corrugated cardboard more fully and conveniently utilized.

[0034] Please see Figure 3 and Figure 4The partition layer 4 includes a first partition paperboard 401, and a second partition paperboard 402 is snapped onto the outer surface of the first partition paperboard 401. The inner wall of the second partition paperboard 402 is provided with a slot 403. Both ends of the first partition paperboard 401 are slidably connected to the inner wall of the longitudinal groove 303. By sliding the first partition paperboard 401 onto the inner wall of the longitudinal groove 303, it can stand vertically inside the corrugated cardboard body 1. It can also be horizontally snapped onto the first partition paperboard 401 by the slot 403 on the second partition paperboard 402. In this way, multiple partitioned spaces are formed inside the corrugated cardboard body 1, which is convenient for storing items of different volumes.

[0035] This embodiment presents a high-strength, lightweight corrugated cardboard packaging structure. Through the combined action of the corrugated core paper 103, the face paper 101, and the inner paper 102, the corrugated cardboard achieves a certain degree of tear resistance, forming a lightweight overall structure. The wavy corrugated core paper 103, in conjunction with transverse reinforcing ribs 201 and longitudinal reinforcing ribs 202, with the transverse reinforcing ribs 201 fixed at the crests and the longitudinal reinforcing ribs 202 fixed at the troughs, forms a reinforcing structure to distribute the load and increase the strength of the corrugated cardboard. The inner stress resistance of the corrugated core paper 103 is enhanced by the honeycomb-shaped paperboard formed by the honeycomb buffer paperboard 301 and the honeycomb holes 302, which reduces the basis weight. At the same time, a buffer layer 3 with elastic cushioning effect is formed on the inner side of the inner paper 102. The honeycomb structure absorbs impact energy through elastic deformation, reducing the impact force transmitted to the contents, thereby increasing the overall service life of the corrugated cardboard body 1 and facilitating folding and recycling. By setting an anti-cracking sleeve 6 on the inner side of the groove 5, it is convenient to provide a gripping space for the corrugated cardboard body 1 and prevent the groove 5 from cracking.

[0036] The working principle of the above embodiments is as follows:

[0037] Transverse reinforcing ribs 201 and longitudinal reinforcing ribs 202 are arranged alternately and fixed together, symmetrically filling both sides of the corrugated core paper 103, positioned between the face paper 101 and the inner paper 102. The transverse reinforcing ribs 201 are fixed at the crests of the corrugated core paper 103, and the longitudinal reinforcing ribs 202 are fixed at the troughs of the corrugated core paper 103, thus forming a reinforcing rib structure to share the load. Multiple honeycomb holes 302 are opened on the honeycomb cushioning paperboard 301 and evenly arranged to form a honeycomb-shaped cushioning plate placed inside the inner paper 102, through honeycomb cushioning... The cardboard 301 and the honeycomb holes 302 form a honeycomb-shaped cardboard, reducing the basis weight. At the same time, a buffer layer 3 with an elastic cushioning effect is formed on the inner side of the inner paper 102. The honeycomb structure of the buffer layer 3 absorbs impact energy through elastic deformation. By sliding the first dividing cardboard 401 to the inner wall of the longitudinal groove 303, it can stand vertically inside the corrugated cardboard body 1. It can also be horizontally locked onto the first dividing cardboard 401 by the slot 403 on the second dividing cardboard 402. In this way, multiple dividing spaces are formed on the inner side of the corrugated cardboard body 1.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application.

Claims

1. A high-strength, lightweight corrugated paper packaging structure, comprising a corrugated cardboard body (1), characterized in that: The corrugated cardboard body (1) has a reinforcing rib layer (2) inside, a buffer layer (3) on the inner wall of the corrugated cardboard body (1), a partition layer (4) slidably connected to the inner wall of the buffer layer (3), and a groove (5) on the outer surface of the corrugated cardboard body (1).

2. The high-strength, lightweight corrugated paper packaging structure according to claim 1, characterized in that: The corrugated cardboard body (1) includes a face paper (101), an inner paper (102) is provided on the inner wall of the face paper (101), and a corrugated core paper (103) is filled between the face paper (101) and the inner paper (102).

3. The high-strength, lightweight corrugated paper packaging structure according to claim 2, characterized in that: The reinforcing layer (2) includes transverse reinforcing ribs (201) and longitudinal reinforcing ribs (202), which are distributed alternately on both sides of the corrugated core paper (103).

4. The high-strength, lightweight corrugated paper packaging structure according to claim 1, characterized in that: The buffer layer (3) includes a honeycomb buffer paperboard (301), and the inner wall of the honeycomb buffer paperboard (301) is provided with honeycomb holes (302), and the number of honeycomb holes (302) is set to a certain number.

5. The high-strength, lightweight corrugated paper packaging structure according to claim 4, characterized in that: The outer surface of the honeycomb cushioning paperboard (301) is provided with longitudinal grooves (303), and the number of longitudinal grooves (303) is set to a plurality of them, which are evenly distributed between the honeycomb holes (302).

6. The high-strength, lightweight corrugated paper packaging structure according to claim 5, characterized in that: The separator layer (4) includes a first separator paperboard (401), a second separator paperboard (402) is snapped onto the outer surface of the first separator paperboard (401), and a slot (403) is provided on the inner wall of the second separator paperboard (402). Both ends of the first separator paperboard (401) are slidably connected to the inner wall of the longitudinal groove (303).

7. The high-strength, lightweight corrugated paper packaging structure according to claim 2, characterized in that: The corrugated core paper (103) is arranged in a wavy pattern.

8. The high-strength, lightweight corrugated paper packaging structure according to claim 1, characterized in that: The inner wall of the slot (5) is fixedly connected with a crack-resistant sleeve (6).

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