Multi-layer composite reinforced corrugated board

Abstract

The utility model discloses a multi-layer composite reinforced corrugated board, which relates to the technical field of corrugated boards and comprises corrugated medium paper, hardboards are fixedly arranged on the upper side and the lower side of the surface of the corrugated medium paper, and the shape of the hardboards is matched with that of the corrugated medium paper. And supporting plates are fixedly mounted in bent grooves in the upper side and the lower side of the surface of the hardboard, and the supporting plates are arranged to be in a V shape. Compared with an existing common corrugated board, the multi-layer composite reinforced corrugated board has the advantages that the corrugated medium paper is arranged in a wave shape, so that the pressure resistance of the corrugated board can be greatly improved, the hardness of the shape of the corrugated medium paper is enhanced by the hardboard, and the pressure resistance of the corrugated medium paper is further improved; and the corrugated medium paper can be subjected to secondary supporting through the supporting plate, so that the self-form strength of the corrugated board is greatly improved on the whole, and the corrugated board is more stable in use and high in pressure resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paperboards, in particular to a multi-layer composite reinforced corrugated paperboard. Background Art

[0002] A corrugated paperboard is a composite paperboard formed by bonding one or more layers of corrugated paper between several layers of paper or paperboard, and is mostly used for manufacturing corrugated cartons. The corrugated paperboard is widely used in product packaging due to its low price, easy processing, and good cushioning and compressive resistance.

[0003] For example, the disclosed document with the application number 202023002158.2 discloses a corrugated paperboard. The stress belt of this utility model is arranged inside the corrugated paperboard and produced together with the paperboard, which can reduce the manufacturing process and equipment cost. And one or more stress belts can be arranged according to needs, which can effectively improve the strength of the corrugated paperboard and reduce the breakage of the paperboard. However, for this corrugated paperboard, the paperboard is only set in a wavy shape, and only relies on this shape to support the pressure and improve the strength. However, when a single-point pressure is applied at the wavy bending part, this shape may still be deformed, causing the paperboard to break and making it difficult to carry out stable compressive support.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a multi-layer composite reinforced corrugated paperboard is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multi-layer composite reinforced corrugated paperboard to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a multi-layer composite reinforced corrugated paperboard, including a corrugated core paper. Rigid paperboards are fixedly arranged on the upper and lower sides of the surface of the corrugated core paper. The shape of the rigid paperboard matches the shape of the corrugated core paper. Support plates are fixedly installed in the bending grooves on the upper and lower sides of the surface of the rigid paperboard. The support plates are set in a "V" shape, and the tip parts of the support plates are on the same horizontal plane as the wavy bending top parts of the corrugated core paper.

[0007] Preferably, grooves are penetrated through the surface of the rigid paperboard, and transverse plates are arranged inside the grooves.

[0008] Preferably, the surface of the transverse plate is fixedly connected to the wavy bending top part of the corrugated core paper, and the surface of the transverse plate is on the same horizontal plane as the wavy bending top part of the rigid paperboard.

[0009] Preferably, an outer paper surface is arranged above the corrugated core paper, and an inner paper surface is arranged below the corrugated core paper.

[0010] Preferably, one side of the surfaces of the outer paper surface and the inner paper surface facing each other is fixedly adhered to the upper and lower lateral plates, and the remaining parts of one side of the surfaces of the outer paper surface and the inner paper surface facing each other are fixedly adhered to the cardboard.

[0011] Preferably, hydrophobic films are fixedly arranged on the opposite sides of the surfaces of the outer paper surface and the inner paper surface, and the hydrophobic films are polytetrafluoroethylene films.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the arrangement of the corrugated core paper, cardboard and support plate, the present utility model utilizes the wave-shaped arrangement of the corrugated core paper itself, which can greatly improve the compressive capacity of the cardboard. The cardboard strengthens the self-form hardness of the corrugated core paper, further improving the compressive capacity of the corrugated core paper. The support plate can secondarily support the wave-bending parts of the corrugated core paper, greatly improving the self-form strength of the corrugated cardboard as a whole, making the corrugated cardboard more stable and with strong compressive resistance during use;

[0014] 2. Through the arrangement of the groove and the lateral plate, the present utility model assembles the lateral plate by using the groove, avoiding the uneven protrusions on the surface of the corrugated cardboard, improving the appearance quality. At the same time, the lateral plate can increase the lateral supporting force of the corrugated cardboard, avoiding the lateral bending of the corrugated cardboard, thus further increasing the form stability and hardness of the corrugated cardboard during use;

[0015] 3. Through the arrangement of the outer paper surface, the inner paper surface and the hydrophobic film, the outer paper surface and the inner paper surface wrap the corrugated core paper in the middle, ensuring the flatness of the inner and outer sides of the corrugated cardboard, making the whole corrugated cardboard more beautiful. At the same time, the arranged hydrophobic film can improve the waterproof capacity of the whole corrugated cardboard, avoiding the cardboard being soaked and softened by water, and improving the waterproof capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of the corrugated core paper box and the lateral plate of the present utility model;

[0018] Figure 3 is of the present utility model Figure 1 The enlarged schematic diagram of the structure at A in.

[0019] In the figure: 1, corrugated core paper; 2, cardboard; 3, support plate; 4, groove; 5, lateral plate; 6, outer paper surface; 7, inner paper surface; 8, hydrophobic film. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] As Figures 1 - 3 shown, the multi-layer composite reinforced corrugated cardboard includes a corrugated core paper 1. Rigid cardboard 2 is fixedly arranged on both the upper and lower sides of the surface of the corrugated core paper 1. The shape of the rigid cardboard 2 matches the shape of the corrugated core paper 1. Support plates 3 are fixedly installed in the bending grooves on both the upper and lower sides of the surface of the rigid cardboard 2. The support plates 3 are arranged in a "V" shape, and the tip parts of the support plates 3 are on the same horizontal plane as the wave bending top parts of the corrugated core paper 1.

[0022] By adopting the above technical solution, the corrugated core paper 1 is arranged in a wave shape itself, which can greatly improve the compressive capacity of this cardboard; the rigid cardboard 2 strengthens the self-morphology hardness of the corrugated core paper 1; the support plates 3 can perform secondary support on the wave bending parts of the corrugated core paper 1, and overall greatly improves the self-morphology strength of the corrugated cardboard.

[0023] Further, a groove 4 is formed through the surface of the rigid cardboard 2, and a transverse plate 5 is arranged inside the groove 4.

[0024] By adopting the above technical solution, the transverse plate 5 is assembled by using the groove 4 to avoid the uneven protrusions on the surface of the corrugated cardboard; the transverse plate 5 can increase the transverse supporting force of the corrugated cardboard and avoid the transverse bending of the corrugated cardboard.

[0025] Further, the surface of the transverse plate 5 is fixedly connected to the wave bending top part of the corrugated core paper 1, and the surface of the transverse plate 5 is on the same horizontal plane as the wave bending top part of the rigid cardboard 2.

[0026] By adopting the above technical solution, the transverse plate 5 is on the same horizontal plane as the rigid cardboard 2, ensuring the overall flatness of the corrugated cardboard.

[0027] Further, an outer paper surface 6 is arranged above the corrugated core paper 1, and an inner paper surface 7 is arranged below the corrugated core paper 1; both the opposite sides of the surfaces of the outer paper surface 6 and the inner paper surface 7 are fixedly pasted to the upper and lower transverse plates 5, and the remaining parts of the opposite sides of the surfaces of the outer paper surface 6 and the inner paper surface 7 are fixedly pasted to the rigid cardboard 2.

[0028] By adopting the above technical solution, the outer paper surface 6 and the inner paper surface 7 wrap the corrugated core paper 1 in the middle, making the inside and outside neater and improving the aesthetics.

[0029] Furthermore, hydrophobic films 8 are fixedly arranged on the opposite sides of the outer paper surface 6 and the inner paper surface 7, and the hydrophobic films 8 are polytetrafluoroethylene films.

[0030] By adopting the above technical solution, the hydrophobic films 8 can improve the waterproof ability of the entire corrugated board and prevent water from soaking and softening the board.

[0031] Working principle: When using this multi-layer composite reinforced corrugated board, first, the transverse board 5 is assembled by using the groove 4 to avoid the uneven protrusions on the surface of the corrugated board and improve the appearance quality. At the same time, the transverse board 5 can increase the lateral support force of the corrugated board. The entire corrugated board is formed by the outer paper surface 6 and the inner paper surface 7 wrapping the corrugated core paper 1 in the middle, ensuring the flatness of the inner and outer sides of the corrugated board. The corrugated core paper 1 is arranged in a wavy shape, which can greatly improve the compressive capacity of this board. The cardboard 2 strengthens the self-morphological hardness of the corrugated core paper 1, further improving the compressive capacity of the corrugated core paper 1. The support board 3 can provide secondary support for the wavy bending part of the corrugated core paper 1, greatly improving the self-morphological strength of the corrugated board as a whole. The hydrophobic films 8 can improve the waterproof ability of the entire corrugated board. This is the working principle of this multi-layer composite reinforced corrugated board.

Claims

1. A multi-layer composite reinforced corrugated paperboard, comprising a corrugated core paper (1), characterized in that: Cardboards (2) are fixedly arranged on the upper and lower sides of the surface of the corrugated core paper (1); the shape of the cardboard (2) matches the shape of the corrugated core paper (1); support plates (3) are fixedly installed in the curved grooves on the upper and lower sides of the surface of the cardboard (2); the support plates (3) are arranged in a "V" shape; the tip of the support plate (3) and the wave-bending top of the corrugated core paper (1) are maintained at the same horizontal plane.

2. The multi-layer composite reinforced corrugated paperboard according to claim 1, characterized in that: A groove (4) is formed through the surface of the cardboard (2), and a transverse plate (5) is arranged inside the groove (4).

3. The multi-layer composite reinforced corrugated paperboard according to claim 2, characterized in that: The surface of the transverse plate (5) is fixedly connected to the wave-bent top portion of the corrugated core paper (1), and the surface of the transverse plate (5) and the wave-bent top portion of the cardboard (2) are maintained at the same horizontal plane.

4. The multi-layer composite reinforced corrugated paperboard according to claim 3, characterized in that: An outer paper surface (6) is arranged above the corrugated core paper (1), and an inner paper surface (7) is arranged below the corrugated core paper (1).

5. The multi-layer composite reinforced corrugated paperboard according to claim 4, characterized in that: The surfaces of the outer paper surface (6) and the inner paper surface (7) on one side facing each other are fixedly adhered to the upper and lower transverse plates (5), and the remaining parts of the surfaces of the outer paper surface (6) and the inner paper surface (7) on one side facing each other are fixedly adhered to the cardboard (2).

6. The multi-layer composite reinforced corrugated paperboard according to claim 4, characterized in that: A hydrophobic film (8) is fixedly arranged on opposite sides of the outer paper surface (6) and the inner paper surface (7), and the hydrophobic film (8) is a polytetrafluoroethylene film.

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