Novel high-strength corrugated board

Abstract

The utility model relates to the technical field of corrugated boards, in particular to a novel high-strength corrugated board. According to the technical scheme, the corrugated reinforcing paperboard comprises a first main body matching paperboard and a second main body matching paperboard which are located on the outer side of a paperboard main body and distributed up and down, and a corrugated reinforcing paper frame is arranged between the first main body matching paperboard and the second main body matching paperboard. The corrugated reinforcing paper frame is composed of a first corrugated reinforcing paper board and a second corrugated reinforcing paper board, the first corrugated reinforcing paper board and the second corrugated reinforcing paper board are symmetrically distributed up and down and tightly attached together, and the attaching position of the first corrugated reinforcing paper board and the attaching position of the second corrugated reinforcing paper board are bonded together through a plane structure. The utility model has the advantages that the overall structural strength is higher, the buffer protection effect can be achieved during use, the reliable matching strength can be ensured under the condition that the overall thickness is smaller, and the use requirements under the application environment with higher thickness and strength requirements can be met.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard technology, and in particular to a novel high-strength corrugated cardboard. Background Technology

[0002] Existing corrugated cardboard is composed of a corrugated cardboard frame in the middle and cardboard on the outside. When in use, the overall structural strength is relatively low and the load-bearing safety is relatively poor. For packaging cardboard with higher strength requirements, multiple layers of corrugated paper and connecting cardboard are usually required. The overall cost of production and processing is relatively high and the processing efficiency is relatively low. Cardboard with higher strength is usually also thicker, which cannot meet the safety requirements of cardboard strength when the thickness is small. Utility Model Content

[0003] The purpose of this invention is to provide a new type of high-strength corrugated cardboard. It utilizes a novel internal corrugated frame design, with two symmetrical corrugated reinforcing cardboard sheets bonded together. The reinforcing cardboard sheets feature an integrally formed mating groove, allowing for direct molding of the pulp during production. This results in higher overall structural strength and provides cushioning and protection during use. It ensures reliable mating strength even with relatively thin overall thickness, meeting the needs of applications requiring both thickness and strength. The overall protective effect is better in later use, while occupying less space.

[0004] The technical solution of this utility model is as follows:

[0005] A novel high-strength corrugated cardboard is characterized by comprising a first main body mating cardboard and a second main body mating cardboard located on the outside of the cardboard body and distributed vertically. A corrugated reinforcing cardboard frame is provided between the first and second main body mating cardboards. The corrugated reinforcing cardboard frame is composed of a first corrugated reinforcing cardboard and a second corrugated reinforcing cardboard that are symmetrically distributed vertically and tightly bonded together. The first and second corrugated reinforcing cardboards are bonded together by a planar structure at their bonding positions. The first and second corrugated reinforcing cardboards are provided with arc-shaped corrugated protective mating grooves that are evenly distributed horizontally and open outwards in the vertical direction. The distance between the inside of the corrugated protective mating groove and the bonding plane of the first corrugated reinforcing cardboard is the same as the thickness of the first main body mating cardboard. The first and second corrugated reinforcing cardboards are symmetrical structures. Both the first corrugated reinforcing cardboard and the corrugated protective mating grooves are directly pressed by a pulp molding die.

[0006] Furthermore, the first main body mating paperboard and the second main body mating paperboard have the same thickness.

[0007] Furthermore, the corrugated protective mating groove is provided with a recessed glue mating groove at the connection position between the first main body mating cardboard and the corrugated protective mating groove.

[0008] Furthermore, the outer sides of the first corrugated reinforcing cardboard and the second corrugated reinforcing cardboard are exactly the same size as the outer sides of the first main body mating cardboard and the second main body mating cardboard.

[0009] Furthermore, the thickness of the first corrugated reinforcing cardboard is 1.5 times the thickness of the first main body mating cardboard.

[0010] The beneficial effects of this utility model are:

[0011] This utility model adopts a brand-new structural design for the internal corrugated cardboard frame of the corrugated cardboard. It uses two symmetrical corrugated reinforcing cardboards bonded together, and the corrugated reinforcing cardboard has an integrated mating groove. During production, the pulp can be directly pressed into shape with the mold, resulting in higher overall structural strength and a cushioning and protective function during use. It can ensure reliable mating strength even with a relatively small overall thickness, meeting the usage requirements of applications with high thickness and strength requirements. Overall, it has better protective effect in later use and occupies less space during use. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a front view of the present invention;

[0014] Figure 3 This is a schematic diagram of the left side of this utility model;

[0015] Figure 4 This is a schematic diagram on the right side of the present invention;

[0016] Figure 5 This is a top view of the present invention;

[0017] Figure 6 This is a bottom view of the present invention;

[0018] In the diagram: 1. First main body mating cardboard, 2. Second main body mating cardboard, 3. First corrugated reinforcing cardboard, 4. Second corrugated reinforcing cardboard, 5. Corrugated protective mating groove. Detailed Implementation

[0019] like Figures 1 to 6As shown, a novel high-strength corrugated cardboard includes a first main body mating cardboard 1 and a second main body mating cardboard 2 located vertically on the outside of the cardboard body. A corrugated reinforcing frame is provided between the first main body mating cardboard 1 and the second main body mating cardboard 2, forming the main structure of the cardboard. The corrugated reinforcing frame is composed of a first corrugated reinforcing cardboard 3 and a second corrugated reinforcing cardboard 4, which are symmetrically distributed vertically and tightly bonded together, replacing the existing corrugated cardboard frame. The first corrugated reinforcing cardboard 3 and the second corrugated reinforcing cardboard 4 are bonded together by a planar structure, making them a whole. The first corrugated reinforcing cardboard 3 and the second corrugated reinforcing cardboard 4 have arc-shaped corrugated protective mating grooves 5 evenly distributed horizontally in the vertical direction and open outwards, which can play a buffering and protective role during use. It has reliable shock absorption deformation space. The distance between the inside of the corrugated protective mating groove 5 and the bonding plane of the first corrugated reinforcing cardboard 3 is the same as the thickness of the first main body mating cardboard 1, ensuring better structural fit strength in the middle position and more reliable overall structural stability. The first corrugated reinforcing cardboard 3 and the second corrugated reinforcing cardboard 4 have a symmetrical structure. Both the first corrugated reinforcing cardboard 3 and the corrugated protective mating groove 5 are directly pressed by pulp molding, resulting in better internal structural strength and higher processing efficiency during production. During production, the first corrugated reinforcing cardboard 3 and the second corrugated reinforcing cardboard 4 are first processed by molding, and then bonded together. This bonded cardboard is then bonded to the first main mating cardboard 1 and the second main mating cardboard 2 to form a whole. During bonding, adhesive is applied to the corrugated protective mating groove 5, and a clamping fixture is used for tightening, ensuring a tighter connection and more reliable overall structural stability. It features a novel internal corrugated cardboard frame design, with two symmetrical corrugated reinforcing cardboard sheets bonded together. The reinforcing cardboard sheets have integrated molding grooves, allowing for direct molding of the pulp during production. This results in higher overall structural strength and provides cushioning protection during use. It ensures reliable bonding strength even with relatively thin overall thickness, meeting the needs of applications requiring both thickness and strength. Overall, it offers better protection in later use, occupies less space, and has relatively lower production and processing costs, avoiding complex bonding processes.

[0020] Preferably, the first main body mating paperboard 1 and the second main body mating paperboard 2 have the same thickness, which makes the structure of the outer side more stable and eliminates the need to distinguish between the front and back when using it, thus making it more convenient to use.

[0021] Preferably, the corrugated protective mating groove 5 is provided with a concave glue mating groove at the connection position with the first main body mating cardboard 1. It is directly processed with the molding mold during the molding process. When the cardboard is bonded as a whole during use, it can provide a precise mating space for the adhesive and ensure better connection strength during bonding.

[0022] Preferably, the outer sides of the first corrugated reinforcing cardboard 3 and the second corrugated reinforcing cardboard 4 are exactly the same size as the outer sides of the first main body mating cardboard 1 and the second main body mating cardboard 2, so that the structural stability of the outer side of the overall structure is better and the structural strength of the edge position is more reliable during use.

[0023] Preferably, the thickness of the first corrugated reinforcing cardboard 3 is 1.5 times that of the first main body cardboard 1, so that the overall structure strength is optimal while keeping the overall cost relatively low. If the thickness is too large, the overall processing cost will increase significantly, and the cost-effectiveness will gradually deteriorate.

[0024] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements or substitutions can be made without departing from the principle of this utility model, and these improvements or substitutions should also be considered within the protection scope of this utility model.

Claims

1. A novel high-strength corrugated cardboard, characterized in that: The system includes a first main body mating paperboard (1) and a second main body mating paperboard (2) located on the outside of the main body of the paperboard and distributed vertically. A corrugated reinforcing paper frame is provided between the first main body mating paperboard (1) and the second main body mating paperboard (2). The corrugated reinforcing paper frame is composed of a first corrugated reinforcing paperboard (3) and a second corrugated reinforcing paperboard (4) that are symmetrically distributed vertically and tightly attached together. The first corrugated reinforcing paperboard (3) and the second corrugated reinforcing paperboard (4) are bonded together by a planar structure at the bonding position. The first corrugated reinforcing paperboard (3) and the second corrugated reinforcing paperboard (4) are provided with arc-shaped corrugated protective mating grooves (5) that are evenly distributed horizontally and open outward in the vertical direction. The distance between the inside of the corrugated protective mating groove (5) and the bonding plane of the first corrugated reinforcing paperboard (3) is the same as the thickness of the first main body mating paperboard (1). The first corrugated reinforcing paperboard (3) and the second corrugated reinforcing paperboard (4) are symmetrical structures. The first corrugated reinforcing paperboard (3) and the corrugated protective mating groove (5) are both directly pressed by a pulp mating molding mold.

2. The novel high-strength corrugated cardboard according to claim 1, characterized in that: The first main body mating paperboard (1) and the second main body mating paperboard (2) have the same thickness.

3. The novel high-strength corrugated cardboard according to claim 1, characterized in that: The corrugated protective mating groove (5) is provided with a concave glue mating groove at the connection position with the first main body mating cardboard (1).

4. The novel high-strength corrugated cardboard according to claim 1, characterized in that: The outer sides of the first corrugated reinforcing cardboard (3) and the second corrugated reinforcing cardboard (4) are exactly the same size as the outer sides of the first main body mating cardboard (1) and the second main body mating cardboard (2).

5. A novel high-strength corrugated cardboard according to claim 1, characterized in that: The thickness of the first corrugated reinforced cardboard (3) is 1.5 times the thickness of the first main body mating cardboard (1).

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