High-bursting-strength box board

Abstract

The utility model relates to a high bursting strength carton board, and relates to the field of carton boards, the high bursting strength carton board comprises a plurality of carton board bodies, each carton board body comprises two surface layers, a waved board and a reinforcing layer, the waved board and the reinforcing layer are bonded and fixed, one surface layer is bonded on the surface of the waved board, the other surface layer is bonded on the surface of the reinforcing layer, and the reinforcing layer is of a grid structure. The box board has the effect of improving the bursting strength of the box board.

Description

Technical Field

[0001] This application relates to the field of boxboard, and more particularly to a high burst strength boxboard. Background Technology

[0002] Corrugated cardboard is a multi-layered cardboard consisting of at least one layer of corrugated core paper and one layer of cardboard. It has high mechanical strength and can withstand collisions and drops during handling. Corrugated cardboard is widely used in the production of product packaging and has advantages such as low cost and recyclability.

[0003] The corrugated cardboard consists of two surface layers and a corrugated board. The surface layers are bonded and fixed to the two sides of the corrugated board, which provides structural strength to the corrugated cardboard, giving it better compressive and folding resistance.

[0004] The aforementioned technical solutions have the following drawbacks: the surface layer and corrugated board are made of paper, which has poor resistance to shear stress. When there are holes in the corrugated board, the structural strength of the corrugated board decreases significantly, reducing the carton's ability to protect the goods. Utility Model Content

[0005] In order to improve the bursting strength of boxboard, this application provides a high bursting strength boxboard.

[0006] The high burst strength cardboard provided in this application adopts the following technical solution:

[0007] A high burst strength boxboard includes multiple cardboard bodies, each cardboard body comprising two surface layers, a corrugated board, and a reinforcing layer. The corrugated board and the reinforcing layer are bonded and fixed together. One surface layer is bonded to the surface of the corrugated board, and the other surface layer is bonded to the surface of the reinforcing layer. The reinforcing layer is configured with a grid structure.

[0008] By adopting the above technical solution, a reinforcing layer is set in the cardboard body, which can improve the shear resistance of the cardboard body. When a sharp object comes into contact with the cardboard body, it is difficult to damage the reinforcing layer structure in the cardboard body, so that the reinforcing layer can play the role of bearing compressive stress. When a hole is generated in the carton, the structural strength of the carton decreases by a small margin and the bursting resistance is high.

[0009] Optionally, the surface layer is coated with a waterproof membrane.

[0010] By adopting the above technical solution, a waterproof membrane is set on the surface layer, which can play a role in water isolation. When there is liquid water on the surface of the cardboard body, the probability of the surface layer and the corrugated board absorbing water and softening can be reduced, thereby reducing the probability of a significant decrease in the structural strength of the surface layer and the corrugated board.

[0011] Optionally, the reinforcing layer is made of synthetic fibers.

[0012] By adopting the above technical solution, the reinforcing layer is made of chemical fiber material. The chemical fiber material has better mechanical properties, lower thickness, lower cost, and has less impact on the thickness and weight of the cardboard body.

[0013] Optionally, the cardboard body has connecting plates along its edges, and multiple cardboard bodies are bent together to form a carton, with the connecting plates on adjacent cardboard bodies being glued together.

[0014] By adopting the above technical solution, and by setting connecting plates at the edges of the cardboard body, after the cardboard bodies are bent together to form a carton structure, the user can apply adhesive to the connecting plates, thereby bonding adjacent cardboard bodies together and improving the structural strength of the carton assembled from the cardboard bodies.

[0015] Optionally, the cardboard body assembled into a carton is provided with corner reinforcements. The corner reinforcements are formed by splicing three semi-circular plates, which are perpendicular to each other. The corner reinforcements are fixed at the corners of the carton and respectively fixed on the three outer surfaces of the carton.

[0016] By adopting the above technical solution, corner reinforcements are set on the cardboard body to give the corner reinforcements a certain structural strength. When the corners of the carton are bumped, the probability of wrinkles on the cardboard body can be reduced, thus allowing the cardboard body to still have good structural strength. When a reinforcing layer is set inside the cardboard body, the corner reinforcements are locked at the joints of multiple cardboard bodies, thereby keeping the cardboard bodies perpendicular to each other and making the carton structure stable.

[0017] Optionally, the corner reinforcement includes an inner part and an outer part, both of which are formed by splicing three semi-circular plates. The inner part is placed inside the carton, and the outer part is placed outside the carton.

[0018] By adopting the above technical solution, by setting an inner part on the inside of the carton and an outer part on the outside of the carton, the inner and outer parts are locked together at one corner of the carton, thereby improving the structural strength of the corner of the carton. When it is difficult for wrinkles to form at the corner of the carton, the cardboard body can remain flat and provide better structural strength.

[0019] Optionally, the inner part is provided with a pin, the end of which is provided with a cone, and the outer part is provided with a hole, the pin is inserted into the hole, and the cone is engaged with the outer part.

[0020] By adopting the above technical solution, by setting a pin on the inner part and opening a hole on the outer part, the inner part and the outer part can be interlocked, thereby improving the connection strength between the inner part and the outer part on the carton.

[0021] Optionally, the pin passes through multiple adjacent connecting plates and connects to the outer component.

[0022] By adopting the above technical solution, the reinforcing layers in adjacent cardboard bodies are connected to each other by inserting pins through adjacent connecting plates, thereby improving the load-bearing performance of the cardboard body and enhancing the overall structural strength of the carton.

[0023] In summary, the beneficial technical effects of this application are as follows:

[0024] 1. By setting a reinforcing layer in the cardboard body, the reinforcing layer can improve the shear resistance of the cardboard body. When a sharp object comes into contact with the cardboard body, it is difficult to damage the reinforcing layer structure in the cardboard body, so that the reinforcing layer can play the role of bearing compressive stress. When a hole is generated in the carton, the structural strength of the carton decreases less and the bursting strength is higher.

[0025] 2. By setting a waterproof membrane on the surface layer, the waterproof membrane can play a water-proof role. When there is liquid water on the surface of the cardboard body, it can reduce the chance of the surface layer and the corrugated board absorbing water and softening, thereby reducing the chance of a significant decrease in the structural strength of the surface layer and the corrugated board.

[0026] 3. By setting connecting plates at the edges of the cardboard body, after the cardboard bodies are bent together to form a carton structure, the user can apply adhesive to the connecting plates, thereby bonding adjacent cardboard bodies together and improving the structural strength of the carton assembled from the cardboard bodies. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the cardboard body according to an embodiment of this application.

[0028] Figure 2 This is a cross-sectional view of the cardboard body according to an embodiment of this application.

[0029] Figure 3 This is a schematic diagram of the structure of the reinforcing member according to an embodiment of this application.

[0030] Figure 4 This is a schematic diagram showing the position of the corner reinforcement in an embodiment of this application.

[0031] Figure 5 This is a schematic diagram of the structure of the outer component in an embodiment of this application.

[0032] Figure 6 This is a schematic diagram of the structure of the inner component in an embodiment of this application.

[0033] Reference numerals: 1. Cardboard body; 11. Surface layer; 12. Corrugated board; 13. Reinforcing layer; 14. Connecting plate; 2. Corner reinforcement; 21. Inner part; 211. Pin; 212. Cone; 22. Outer part; 221. Insertion hole. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] This application discloses a high burst strength cardboard boxboard, referring to... Figure 1 , Figure 2 and Figure 3 The system comprises multiple cardboard bodies 1, which are integrally formed and assembled into a carton body by cutting them into specific shapes. Each cardboard body 1 includes two surface layers 11, a corrugated board 12, and a reinforcing layer 13. The surface layers 11 and the corrugated board 12 are made of paper. The corrugated board 12 and the reinforcing layer 13 are bonded together, with one surface layer 11 bonded to the surface of the corrugated board 12 and the other surface layer 11 bonded to the surface of the reinforcing layer 13. The reinforcing layer 13 has a mesh structure. By incorporating the reinforcing layer 13 into the cardboard body 1, the burst strength of the cardboard body 1 is increased. When the cardboard body 1 is subjected to significant stress, damaging the structure of the surface layers 11 and the corrugated board 12, the reinforcing layer 13 can withstand the stress and maintain a certain structural strength of the cardboard body 1.

[0036] Reference Figure 1 The outer surfaces of the two surface layers 11 are covered with a waterproof membrane, which enhances the waterproof capability of the surface layers 11. When there is moisture on the cardboard body 1, the moisture can easily damage the structure of the surface layers 11 and the corrugated board 12, causing holes in the cardboard body 1. By setting a waterproof membrane on the surface layers 11, the probability of holes forming on the cardboard body 1 can be reduced.

[0037] Reference Figure 3 The reinforcing layer 13 has a mesh structure and can be made of synthetic fibers. In other embodiments, the reinforcing layer 13 can be made of resin materials. The reinforcing layer 13 is flexible and can deform as the cardboard body 1 is folded. The reinforcing layer 13 has good structural strength and toughness, and can withstand impact and maintain structural stability when a sharp object comes into contact with the cardboard body 1.

[0038] Reference Figure 4The cardboard body 1 is assembled into a carton, on which corner reinforcements 2 are detachably connected. The corner reinforcement 2 is a structure formed by splicing three semi-circular plates together, with the three semi-circular plates perpendicular to each other. The corner reinforcement 2 is set at the corners of the carton. The corner reinforcement 2 is fixed to the outer surface of the carton by adhesive, which serves to support the structure of the cardboard body 1. When the cardboard body 1 is provided with an elastic reinforcing layer 13, the reinforcing layer 13 has a tendency to rebound. By setting the corner reinforcement 2, the cardboard body 1 can bend and remain perpendicular to each other and maintain its positional stability. By setting the corner reinforcement 2 at the corners of the carton, the probability of the corners of the carton being hit and wrinkled is reduced, thereby maintaining the structural stability of the cardboard body 1.

[0039] Reference Figure 5 and Figure 6 The corner reinforcement 2 includes an inner member 21 and an outer member 22, which are identical in shape. The inner member 21 is snapped onto the inner corner of the carton, while the outer member 22 is positioned at the outer corner of the carton. The inner member 21 and the outer member 22 are detachably connected. Together, the inner member 21 and the outer member 22 provide support for the cardboard body 1, reducing the likelihood of wear and tear and holes at the corners of the carton.

[0040] Reference Figure 5 and Figure 6 The inner part 21 is provided with a pin 211, the length of which points towards the outer part 22, and a cone 212 is provided at the end of the pin 211. An insertion hole 221 is provided at the center of the outer part 22, into which the pin 211 is inserted, and the cone 212 passes through the insertion hole 221 and engages with the outer part 22. The inner part 21 and the outer part 22 are engaged by the pin 211, thereby providing a stable connection between the inner part 21 and the outer part 22 and supporting the cardboard body 1. In other embodiments, the inner part 21 and the outer part 22 are magnetically connected to each other, allowing users to easily and quickly remove the corner reinforcement 2 from the carton and reuse it.

[0041] Reference Figure 1 The cardboard body 1 has connecting plates 14 along its edges. When the cardboard bodies 1 are bent together, adhesive is applied to the adjacent connecting plates 14 to bond them together, thus keeping the cardboard bodies 1 perpendicular to each other. When the cone 212 passes through the carton, it penetrates two adjacent connecting plates 14, thereby connecting the reinforcing layers 13 in the adjacent connecting plates 14 through pins 211, thus stably connecting the adjacent cardboard bodies 1 together.

[0042] The implementation principle of this application embodiment is as follows: By setting a reinforcing layer 13 in the cardboard body 1, the reinforcing layer 13 can enhance the strength of the cardboard body 1. When the cardboard body 1 is subjected to large stress, the surface layer 11 and the corrugated board 12 are easily damaged under shear stress. The reinforcing layer 13 can maintain structural stability and keep the shape of the cardboard body 1 stable. By setting corner reinforcements 2 on the carton assembled from cardboard bodies 1, the corner reinforcements 2 can be set at the corners of the carton, thereby reducing the probability of the carton being impacted and deformed. By setting pins 211 on the corner reinforcements 2, the pins 211 can be inserted into the connecting plates 14 on two adjacent cardboard bodies 1, thereby connecting the reinforcing layers 13 on adjacent cardboard bodies 1 to each other and improving the connection stability of the cardboard bodies 1.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high burst strength cardboard box, characterized in that: The system includes multiple cardboard bodies (1), each cardboard body (1) comprising two surface layers (11), a corrugated board (12), and a reinforcing layer (13). The corrugated board (12) and the reinforcing layer (13) are bonded together. One surface layer (11) is bonded to the surface of the corrugated board (12), and the other surface layer (11) is bonded to the surface of the reinforcing layer (13). The reinforcing layer (13) is configured as a grid structure. Connecting plates (14) are provided on the edges of the cardboard bodies (1). Multiple cardboard bodies (1) are bent together and assembled into a carton. The connecting plates (14) on adjacent cardboard bodies (1) are bonded together. Corner reinforcement members (2) are provided on the carton assembled from the cardboard bodies (1). The corner reinforcement members (2) are formed by splicing three semicircular plates, which are perpendicular to each other. The corner reinforcement (2) is fixed at the corner of the carton and fixed on the three outer surfaces of the carton respectively. The corner reinforcement (2) includes an inner part (21) and an outer part (22). The inner part (21) and the outer part (22) are both formed by splicing three semi-circular plates. The inner part (21) is set inside the carton and the outer part (22) is set outside the carton. The inner part (21) is provided with a pin (211) and the end of the pin (211) is provided with a cone (212). The outer part (22) is provided with a hole (221). The pin (211) is inserted into the hole (221) and the cone (212) is engaged with the outer part (22). The pin (211) passes through multiple adjacent connecting plates (14) and is connected to the outer part (22).

2. The high burst strength cardboard boxboard according to claim 1, characterized in that: The surface layer (11) is coated with a waterproof membrane.

3. The high burst strength boxboard according to claim 1, characterized in that: The reinforcing layer (13) is made of synthetic fiber.

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