Pressure-resistant corrugated board

Abstract

The utility model relates to the technical field of corrugated boards, in particular to a pressure-resistant corrugated board which comprises first surface paper, core paper adheres to the lower surface of the first surface paper, second surface paper adheres to the lower surface of the core paper, the first surface paper comprises a base layer, an elastic layer is arranged on the side, away from the core paper, of the base layer, and the elastic layer is arranged on the side, away from the core paper, of the base layer. A compression-resistant layer is arranged on the side, away from the base layer, of the elastic layer, and an auxiliary device is arranged in the core paper. The base layers of the first surface paper and the second surface paper serve as basic structures and provide certain support, the elastic layers on the outer sides of the base layers can generate elastic deformation and buffer part of pressure when being stressed, the compression-resistant layers further enhance the capacity of the surface paper for resisting external pressure, and when external force acts on the paperboard, the layers act together, so that the surface paper is not damaged. According to the scheme, the corrugated board is effectively supported through the elastic layer and the supporting soft roller, so that the strength of the corrugated board is ensured, and normal use of the corrugated board is facilitated.

Description

Technical Field

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

[0002] Corrugated cardboard is a commonly used packaging material. It is made by bonding one or more layers of corrugated core paper with one or more layers of flat linerboard. Its main material is pulp, which is relatively inexpensive. Corrugated cardboard is lightweight, easy to process, and recyclable. It is widely used in the production of various packaging boxes and cartons, and plays an important role in logistics and product packaging.

[0003] Existing technologies, such as the utility model patent with publication number CN103231569A, disclose a pressure-resistant corrugated cardboard, comprising a first cardboard, a second cardboard, a first paper core, a second paper core, and an adhesive layer. The first cardboard and the second cardboard are arranged parallel to each other, and the first paper core and the second paper core are sandwiched between the first cardboard and the second cardboard and connected to the first cardboard and the second cardboard respectively by the adhesive layer. Both the first paper core and the second paper core have a first groove and a second groove, and the first groove and the second groove of the first paper core are correspondingly interlocked with the first groove and the second groove of the second paper core. The pressure-resistant corrugated cardboard provided by this invention forms the core of the corrugated cardboard through the interlocking combination of the first paper core and the second paper core, resulting in a lightweight and high pressure-resistant cardboard.

[0004] Currently, most corrugated cardboard is supported only by the paper core, which makes it prone to bending under external force, affecting the strength of the corrugated cardboard and hindering its normal use. This needs to be improved. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing corrugated cardboard, which is mostly supported only by the paper core and is still prone to bending under external force, affecting the strength of the corrugated cardboard and hindering its normal use. Therefore, this invention proposes a pressure-resistant corrugated cardboard.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a pressure-resistant corrugated cardboard, comprising a first face paper, a core paper adhered to the lower surface of the first face paper, and a second face paper adhered to the lower surface of the core paper. The first face paper includes a base layer, an elastic layer disposed on the side of the base layer away from the core paper, and a compression-resistant layer disposed on the side of the elastic layer away from the base layer. An auxiliary device is disposed inside the core paper. The base layers of the first and second face papers form a basic structure, providing certain support. The elastic layer on its outer side can undergo elastic deformation when subjected to pressure, buffering part of the pressure. The compression-resistant layer further enhances the ability of the face paper to resist external pressure. When an external force is applied to the cardboard, these layers work together to prevent the cardboard from easily deforming. This solution effectively supports the corrugated cardboard through the elastic layer and supporting soft rollers, thereby ensuring the strength of the corrugated cardboard and facilitating its normal use.

[0007] Preferably, the first and second sheets have the same structure and are arranged in a mirror image.

[0008] Preferably, the longitudinal section of the core paper is wavy. This special shape is similar to a series of small springs. When subjected to pressure, it can disperse the pressure through deformation, dispersing the vertical pressure to the horizontal direction and enhancing the overall compressive strength of the paperboard.

[0009] Preferably, the auxiliary device includes a support roller, which is placed between the core papers. The surface of the core paper has positioning holes, and a positioning rod is inserted into the positioning holes. The surface of the support roller has insertion holes, and one end of the positioning rod passes through the insertion holes. The support roller is placed between the core papers and its position is fixed by inserting the positioning rod into the positioning holes of the core paper and the insertion holes of the support roller. When the cardboard is subjected to pressure, the support roller can bear part of the pressure, and because it is evenly spaced, it can distribute the pressure evenly, avoiding excessive local pressure that could damage the cardboard.

[0010] Preferably, there are multiple supporting soft rollers, and the multiple supporting soft rollers are arranged at equal intervals.

[0011] Preferably, the number of positioning rods, positioning holes and insertion holes is multiple sets, and the multiple sets of positioning rods, positioning holes and insertion holes are arranged at equal intervals to facilitate the normal use of corrugated cardboard.

[0012] Preferably, the centers of a group of positioning rods, positioning holes, and insertion holes are on the same horizontal line, and multiple groups of positioning rods, positioning holes, and insertion holes are arranged at equal intervals with their centers on the same horizontal line, ensuring the stability of the support soft roller position and enabling them to play a continuous and effective role during the pressure process, further improving the pressure resistance of corrugated cardboard.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the first and second face sheets form the basic structure, providing certain support. Their outer elastic layers can undergo elastic deformation under pressure, buffering some of the pressure. The compression-resistant layer further enhances the face sheets' ability to resist external pressure. When external force acts on the cardboard, these layers work together to prevent the cardboard from easily deforming. The core paper has a wavy longitudinal section; this special shape resembles small springs, which can disperse pressure through deformation when subjected to pressure, dispersing vertical pressure horizontally and enhancing the overall compression resistance of the cardboard. Supporting soft rollers are placed between the core sheets and inserted into the core sheets via positioning rods. The positioning holes and insertion holes of the support rollers are used to fix the position. When the cardboard is under pressure, the support rollers can bear part of the pressure. Due to their equal spacing, they can evenly distribute the pressure and avoid excessive local pressure that could damage the cardboard. At the same time, the equal spacing of multiple sets of positioning rods, positioning holes and insertion holes, with their centers on the same horizontal line, ensures the stability of the support rollers' position, allowing them to continue to play an effective role during the pressure process, further improving the pressure resistance of the corrugated cardboard. This solution effectively supports the corrugated cardboard through the elastic layer and support rollers, thereby ensuring the strength of the corrugated cardboard and facilitating its normal use. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a pressure-resistant corrugated cardboard is provided for this utility model;

[0016] Figure 2 A side view of a pressure-resistant corrugated cardboard structure is provided for this utility model;

[0017] Figure 3 This utility model provides a cross-sectional structural diagram of a pressure-resistant corrugated cardboard.

[0018] Figure 4 This utility model provides an exploded structural diagram of a pressure-resistant corrugated cardboard.

[0019] Figure 5 This utility model proposes a pressure-resistant corrugated cardboard... Figure 4 A schematic diagram of the structure at point A.

[0020] Legend:

[0021] 1. First face paper; 11. Compression layer; 12. Elastic layer; 13. Base layer; 2. Second face paper; 3. Core paper; 4. Auxiliary device; 41. Support roller; 42. Positioning rod; 43. Positioning hole; 44. Insertion hole. Detailed Implementation

[0022] Please see Figures 1-5This utility model provides a technical solution: a pressure-resistant corrugated cardboard, including a first face paper 1, a core paper 3 adhered to the lower surface of the first face paper 1, and a second face paper 2 adhered to the lower surface of the core paper 3. The first face paper 1 includes a base layer 13, an elastic layer 12 is provided on the side of the base layer 13 away from the core paper 3, and a pressure-resistant layer 11 is provided on the side of the elastic layer 12 away from the base layer 13. An auxiliary device 4 is provided inside the core paper 3. The base layer 13 of the first face paper 1 and the second face paper 2 is the basic structure, providing certain support. The elastic layer 12 on its outer side can undergo elastic deformation when subjected to pressure, buffering part of the pressure. The pressure-resistant layer 11 further enhances the ability of the face paper to resist external pressure. When an external force is applied to the cardboard, these layers work together to prevent the cardboard from easily deforming. This solution effectively supports the corrugated cardboard through the elastic layer 12 and the supporting soft roller 41, thereby ensuring the strength of the corrugated cardboard and facilitating its normal use.

[0023] Specifically, the first sheet 1 and the second sheet 2 have the same structure and are arranged in a mirror image.

[0024] Specifically, the longitudinal section of the core paper 3 is wavy. This special shape is similar to small springs. When subjected to pressure, it can disperse the pressure through deformation, dispersing the vertical pressure to the horizontal direction and enhancing the overall compressive strength of the paperboard.

[0025] In this embodiment: the auxiliary device 4 includes a support soft roller 41, which is placed between the core paper 3. The surface of the core paper 3 is provided with a positioning hole 43, and a positioning rod 42 is inserted into the positioning hole 43. The surface of the support soft roller 41 is provided with an insertion hole 44, and one end of the positioning rod 42 passes through the insertion hole 44. The support soft roller 41 is placed between the core paper 3 and its position is fixed by inserting the positioning rod 42 into the positioning hole 43 of the core paper 3 and the insertion hole 44 of the support soft roller 41. When the paperboard is subjected to pressure, the support soft roller 41 can bear part of the pressure, and because it is evenly spaced, it can evenly distribute the pressure, avoiding excessive local pressure that could damage the paperboard.

[0026] Specifically, there are multiple support soft rollers 41, and the multiple support soft rollers 41 are arranged at equal intervals.

[0027] Specifically, there are multiple sets of positioning rods 42, positioning holes 43 and insertion holes 44, which are equally spaced to facilitate the normal use of corrugated cardboard.

[0028] In this embodiment, the centers of a set of positioning rods 42, positioning holes 43 and insertion holes 44 are on the same horizontal line. Multiple sets of positioning rods 42, positioning holes 43 and insertion holes 44 are arranged at equal intervals and their centers are on the same horizontal line, which ensures the stability of the position of the support soft roller 41 and enables them to play a continuous and effective role during the pressure process, further improving the pressure resistance of the corrugated cardboard.

[0029] Working principle: The base layer 13 of the first and second face sheets 1 and 2 forms the basic structure, providing certain support. The elastic layer 12 on its outer side can undergo elastic deformation when subjected to pressure, buffering part of the pressure. The compression-resistant layer 11 further enhances the face sheets' ability to resist external pressure. When external force is applied to the paperboard, these layers work together to prevent the paperboard from easily deforming. The core paper 3 has a wavy longitudinal section. This special shape is similar to small springs. When subjected to pressure, it can disperse the pressure through deformation, dispersing the vertical pressure to the horizontal direction, enhancing the overall compression resistance of the paperboard, and supporting the soft roller 4. 1. Placed between the core paper 3, the positioning rod 42 is inserted into the positioning hole 43 of the core paper 3 and the insertion hole 44 of the support soft roller 41 to fix its position. When the cardboard is under pressure, the support soft roller 41 can bear part of the pressure. And because of its equal spacing, it can evenly distribute the pressure and avoid excessive local pressure that could damage the cardboard. At the same time, the multiple sets of positioning rods 42, positioning holes 43 and insertion holes 44 are equally spaced and their centers are on the same horizontal line, which ensures the stability of the position of the support soft roller 41 and enables them to play a continuous and effective role during the pressure process, further improving the pressure resistance of the corrugated cardboard.

Claims

1. A pressure-resistant corrugated board comprising a first face paper (1), the lower surface of which is adhered to a core paper (3), the lower surface of which is adhered to a second face paper (2), characterized in that: The first side paper (1) comprises a base layer (13), the base layer (13) is provided with an elastic layer (12) away from one side of the core paper (3), the elastic layer (12) is provided with a pressure-resistant layer (11) away from one side of the base layer (13), the inside of the core paper (3) is provided with an auxiliary device (4).

2. A pressure-resistant corrugated paperboard according to claim 1, characterized in that: The first side paper (1) and the second side paper (2) are of the same structure, and the first side paper (1) and the second side paper (2) are mirror image arranged.

3. A pressure-resistant corrugated paperboard according to claim 1, characterized in that: The longitudinal section of the core paper (3) is a wavy line.

4. A pressure-resistant corrugated paperboard according to claim 1, characterized in that: The auxiliary device (4) comprises a supporting soft roller (41), the supporting soft roller (41) is placed between the core paper (3), the surface of the core paper (3) is provided with a positioning hole (43), the positioning hole (43) is provided with a positioning rod (42), the surface of the supporting soft roller (41) is provided with a insertion hole (44), and one end of the positioning rod (42) penetrates through the insertion hole (44).

5. A pressure-resistant corrugated paperboard according to claim 4, characterized in that: The number of the supporting soft roller (41) is multiple, and the multiple supporting soft rollers (41) are equidistantly arranged.

6. A pressure-resistant corrugated paperboard according to claim 4, characterized in that: The number of the positioning rod (42), the positioning hole (43) and the insertion hole (44) is multiple groups, and the multiple groups of the positioning rod (42), the positioning hole (43) and the insertion hole (44) are equidistantly arranged.

7. A pressure-resistant corrugated paperboard according to claim 4, characterized in that: The centers of one group of the positioning rod (42), the positioning hole (43) and the insertion hole (44) are on the same horizontal line.

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