A paperboard having good load bearing properties

Abstract

The utility model discloses a paperboard with good bearing capacity, which comprises a paperboard body and a plurality of reinforcing mechanisms embedded in the paperboard body, wherein the paperboard body comprises a first body layer and a second body layer, the first body layer and the second body layer are both arranged in a wavy shape, and a plurality of reinforcing layers are arranged in the first body layer and the second body layer; each reinforcing mechanism comprises a reinforcing column, reinforcing plates are arranged at both ends of the reinforcing column, the outer sides of the two reinforcing plates are respectively connected to the inner sides of the first body layer and the second body layer, and a compression-resistant surface is arranged at the connecting part between the side adjacent to the reinforcing column of each reinforcing plate; each reinforcing layer is arranged in a strip shape and arranged along the wave direction of the first body layer and the second body layer. The utility model has the advantages of good bearing capacity, and solves the problems of compression deformation, fiber breakage and decreased bearing capacity of the current corrugated paperboard when bearing large pressure.

Description

Technical Field

[0001] This utility model relates to the field of cardboard technology, specifically to a cardboard with good load-bearing capacity. Background Technology

[0002] Cardboard, as a widely used packaging material, plays a vital role in modern logistics and commodity sales. It not only protects products from external physical damage, moisture, and contamination, but also facilitates transportation, storage, and display. From everyday food and consumer goods packaging to the outer packaging of industrial and electronic products, cardboard has become a preferred material due to its excellent processing performance, economy, and environmental friendliness.

[0003] Paperboard comes in many varieties, among which corrugated paperboard is usually made from ordinary pulp, which has limited fiber strength and toughness. When subjected to greater pressure, corrugated paperboard is prone to problems such as compression deformation and fiber breakage, resulting in a decrease in load-bearing capacity. For example, some ordinary corrugated paperboard may develop indentations or even breakage in a short period of time when packaging heavy products. Utility Model Content

[0004] The purpose of this invention is to provide a cardboard with good load-bearing capacity, which solves the problem that current corrugated cardboard is prone to compression deformation and fiber breakage when subjected to greater pressure, resulting in a decrease in load-bearing capacity.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cardboard with good load-bearing capacity, comprising: a cardboard body and a plurality of reinforcing mechanisms fitted into the cardboard body;

[0006] The cardboard body includes a first main layer and a second main layer. Both the first main layer and the second main layer are corrugated, and both the first main layer and the second main layer have several reinforcing layers inside.

[0007] Each of the reinforcement mechanisms includes a reinforcement column, and reinforcement plates are provided at both ends of the reinforcement column. The outer sides of the two reinforcement plates are respectively connected to the inner sides of the first main layer and the second main layer, and the connection between the adjacent side of the two reinforcement plates and the reinforcement column is provided with a pressure-resistant surface.

[0008] Preferably, each of the reinforcing layers is provided in the form of a strip and is arranged along the wave direction of the first main layer and the second main layer.

[0009] Preferably, the spacing between two adjacent reinforcing layers is between 3 and 5 cm.

[0010] Preferably, the cross-sections of both the reinforcing column and the reinforcing plate are circular, wherein the diameter of the reinforcing plate is larger than the diameter of the reinforcing column.

[0011] Preferably, both reinforcing plates are provided with a plurality of anti-slip grooves on their outer sides, the plurality of anti-slip grooves are arranged in a ring shape, and the diameter of the plurality of anti-slip grooves gradually increases from the inside to the outside.

[0012] Preferably, both ends of the reinforcement mechanisms are perpendicular to the sides of the first main body layer and the second main body layer.

[0013] Preferably, each of the reinforcing plates has a through groove inside, and the reinforcing column has an anti-detachment groove connecting the two through grooves inside. Both the through groove and the anti-detachment groove are cylindrical, wherein the diameter of the through groove is smaller than the diameter of the anti-detachment groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model features a double-layer structure consisting of a first main layer, a second main layer, a reinforcing layer, and reinforcing mechanisms. Several reinforcing layers, evenly embedded along the direction of force within the first and second main layers, effectively distribute pressure and prevent deformation of the corrugated cardboard under heavy load. The reinforcing layers are tightly bonded to the face paper and core paper of the first and second main layers using a special bonding process, ensuring coordinated operation during stress and enhancing overall load-bearing capacity. Several reinforcing mechanisms positioned between the first and second main layers provide strong compressive strength within a small space, especially under concentrated loads. Furthermore, several anti-slip grooves on the outer side of the reinforcing plates increase the overall structural strength of the cardboard body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the vertical cross-sectional structure of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A;

[0019] Figure 4 This utility model Figure 3 A schematic diagram of the vertical cross-sectional structure of the reinforcement mechanism.

[0020] The reference numerals and names in the figure are as follows:

[0021] 1. Cardboard body; 11. First main body layer; 12. Second main body layer; 13. Reinforcing layer; 2. Reinforcing mechanism; 21. Reinforcing column; 22. Reinforcing board; 23. Compression-resistant surface; 24. Anti-slip groove; 25. Through groove; 26. Anti-detachment groove. Detailed Implementation

[0022] 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.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0025] Please see Figures 1 to 4This utility model provides an embodiment of a cardboard with good load-bearing capacity, comprising: a cardboard body 1 and a plurality of reinforcing mechanisms 2 embedded within the cardboard body 1; the cardboard body 1 includes a first main layer 11 and a second main layer 12, both the first main layer 11 and the second main layer 12 being corrugated, and both the first main layer 11 and the second main layer 12 having a plurality of reinforcing layers 13 inside; each reinforcing mechanism 2 includes a reinforcing column 21, and both ends of the reinforcing column 21 are provided with reinforcing plates 22, the outer sides of the two reinforcing plates 22 being respectively connected to the first main layer 11 and the second main layer 12. The inner sides of the first main layer 11 and the second main layer 12 are connected, and the connection points between the adjacent sides of the two reinforcing plates 22 and the reinforcing column 21 are all provided with pressure-resistant surfaces 23. In specific implementation, the first main layer 11, the second main layer 12, the reinforcing layer 13 and the reinforcing mechanism 2 are bonded using an ultrasonic bonding process. This process utilizes the high-frequency vibration of ultrasound to cause the molecules at the bonding points of the cardboard to generate intense friction, thereby instantly generating heat and melting the material on the surface of the cardboard (such as a specially made thermoplastic coating or paper containing thermoplastic fibers), thus achieving bonding. This process does not require the use of glue, avoiding the potential pollution caused by adhesives. At the same time, the bonding speed is fast and the strength is high. It is suitable for bonding food packaging cardboard and other materials with high hygiene requirements. Since it is existing technology, it will not be described in detail here.

[0026] Each reinforcing layer 13 is arranged in a strip shape along the wavy direction of the first main layer 11 and the second main layer 12. The spacing between two adjacent reinforcing layers 13 is between 3 and 5 cm. The cross-sections of the reinforcing column 21 and the reinforcing plate 22 are both circular, with the diameter of the reinforcing plate 22 being larger than that of the reinforcing column 21. Several anti-slip grooves 24 are provided on the outer side of both reinforcing plates 22. The anti-slip grooves 24 are all arranged in a ring shape, and the diameter of the anti-slip grooves 24 gradually increases from the inside to the outside. Both ends of the several reinforcing mechanisms 2 are perpendicular to the sides of the first main layer 11 and the second main layer 12. Each reinforcing plate 22 has a through groove 25 inside. The reinforcing column 21 has an anti-detachment groove 26 connecting the two through grooves 25 inside. Both the through groove 25 and the anti-detachment groove 26 are cylindrical, with the diameter of the through groove 25 being smaller than that of the anti-detachment groove 26.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A type of cardboard with good load-bearing capacity, characterized in that, include: The cardboard body (1) and several reinforcing mechanisms (2) fitted into the cardboard body (1); The cardboard body (1) includes a first main layer (11) and a second main layer (12). Both the first main layer (11) and the second main layer (12) are wavy, and both the first main layer (11) and the second main layer (12) are provided with a number of reinforcing layers (13). Each of the reinforcement mechanisms (2) includes a reinforcement column (21), and reinforcement plates (22) are provided at both ends of the reinforcement column (21). The outer sides of the two reinforcement plates (22) are respectively connected to the inner sides of the first main layer (11) and the second main layer (12), and the connection parts between the adjacent side of the two reinforcement plates (22) and the reinforcement column (21) are provided with a pressure-resistant surface (23).

2. The cardboard with good load-bearing capacity according to claim 1, characterized in that: Each of the reinforcement layers (13) is arranged in a strip shape and is arranged along the wave direction of the first main layer (11) and the second main layer (12).

3. The cardboard with good load-bearing capacity according to claim 1, characterized in that: The spacing between two adjacent reinforcing layers (13) is between 3 and 5 cm.

4. The cardboard with good load-bearing capacity according to claim 1, characterized in that: The cross-sections of the reinforcing column (21) and the reinforcing plate (22) are both circular, with the diameter of the reinforcing plate (22) being greater than that of the reinforcing column (21).

5. The cardboard with good load-bearing capacity according to claim 1, characterized in that: Both of the reinforcing plates (22) are provided with a number of anti-slip grooves (24) on their outer sides. The number of anti-slip grooves (24) are arranged in a ring shape, and the diameter of the number of anti-slip grooves (24) gradually increases from the inside to the outside.

6. The cardboard with good load-bearing capacity according to claim 1, characterized in that: Both ends of several of the reinforcement mechanisms (2) are perpendicular to the sides of the first main body layer (11) and the second main body layer (12).

7. The cardboard with good load-bearing capacity according to claim 1, characterized in that: Each of the reinforcing plates (22) has a through groove (25) inside, and the reinforcing column (21) has an anti-detachment groove (26) connecting the two through grooves (25) inside. Both the through groove (25) and the anti-detachment groove (26) are cylindrical, and the diameter of the through groove (25) is smaller than the diameter of the anti-detachment groove (26).

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