A film-coated paperboard

Abstract

The utility model provides a kind of laminated paperboard, it relates to paperboard technical field, this laminated paperboard, including upper corrugated paperboard and lower corrugated paperboard, the opposite inner side of upper corrugated paperboard and lower corrugated paperboard is respectively bonded with buffer device, the buffer device includes first fixed plate fixedly connected on upper corrugated paperboard, second fixed plate fixedly connected on lower corrugated paperboard and multiple elastic metal wires fixed between first fixed plate and second fixed plate, the elastic metal wire is curved, and the middle portion of multiple elastic metal wires is provided with the anti-falling device for preventing elastic metal wire from falling off;When the object of relatively heavy weight generates pressure to upper corrugated paperboard, elastic metal wire generates elastic deformation, improve the buffering capacity and compression strength of laminated paperboard, when the corrugated layer of upper corrugated paperboard and lower corrugated paperboard is damaged, still have buffering performance, improve the service life of laminated paperboard.

Description

TECHNICAL FIELD

[0001] The utility model relates to paperboard technical field, specifically a kind of laminated paperboard. BACKGROUND

[0002] Carton is the most widely used packaging product, according to different materials, there are corrugated carton, single-layer paperboard box, etc., there are various specifications and models, commonly used paper box is three, five, seven, each layer is divided into inner paper, corrugated paper, core paper, face paper, inner and outer paper has tea board paper, kraft paper, core paper uses corrugated paper, the color and hand feeling of various papers are different, and the paper produced by different manufacturers is also different.

[0003] In the process of packaging objects, multiple corrugated paperboards are needed to separate multiple objects, and the existing corrugated paperboard will be severely deformed under great pressure, resulting in poor buffering capacity. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of laminated paperboard, to solve the problem of poor buffering performance of corrugated paperboard in prior art.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of laminated paperboard, including upper corrugated paperboard and lower corrugated paperboard, the opposite inner side of upper corrugated paperboard and lower corrugated paperboard is respectively bonded with buffer device, the buffer device includes first fixed plate fixedly connected on upper corrugated paperboard, second fixed plate fixedly connected on lower corrugated paperboard and multiple elastic metal wires fixed between first fixed plate and second fixed plate, the elastic metal wire is curved, and the middle part of multiple elastic metal wires is provided with anti-falling device for preventing elastic metal wire from falling off.

[0006] The further technical scheme of the utility model is that a bonding layer is arranged between the upper corrugated paperboard and the first fixed plate and between the lower corrugated paperboard and the second fixed plate.

[0007] In order to prevent the metal wire from falling off, the further technical scheme of the utility model is that the anti-falling device is a connecting plate arranged on multiple elastic metal wires, the four edges of the connecting plate are respectively provided with edge portions, and the edge portions are arranged at the opening position formed by the upper corrugated paperboard and the lower corrugated paperboard.

[0008] The further technical scheme of the utility model is that the cross section of the edge portion is double-curved surface arc structure, and the edge portion has elasticity.

[0009] The further technical scheme of the utility model is that multiple limiting columns are arranged on the opposite inner side of the upper corrugated paperboard and the lower corrugated paperboard, multiple limiting columns and multiple elastic metal wires are cross arranged, and a space is left between the limiting column and the connecting plate.

[0010] In order to enable the present invention to prevent puncture of the connecting plate, a further technical solution of the present invention is that the limiting post is made of rubber.

[0011] To make this utility model waterproof, a further technical solution of this utility model is that a waterproof membrane is provided on the outside of the upper corrugated cardboard and the lower corrugated cardboard.

[0012] The beneficial effects of this utility model are:

[0013] 1. When a heavy object applies pressure to the upper corrugated cardboard, the elastic metal wires undergo elastic deformation, improving the cushioning capacity and compressive strength of the coated cardboard. Even after the corrugated layers of the upper and lower corrugated cardboard are damaged, it still retains its cushioning properties, thus extending the service life of the coated cardboard.

[0014] 2. The connecting plate serves to connect multiple elastic metal wires, effectively preventing some of the elastic metal wires from falling off. The edges, upper corrugated cardboard, and lower corrugated cardboard can surround the elastic metal wires. When some elastic metal wires fall off, they can effectively prevent them from entering the carton and puncturing objects. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention;

[0016] Figure 2 This is a utility model Figure 1 Enlarged structural diagram at point A;

[0017] Figure 3 This is a three-dimensional structural diagram of the buffer device of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the buffer device of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the connecting plate of this utility model.

[0020] In the diagram: 1. Upper corrugated cardboard; 2. Lower corrugated cardboard; 3. Cushioning device; 31. First fixing plate; 32. Second fixing plate; 33. Elastic metal wire; 4. Connecting plate; 41. Edge; 5. Adhesive layer; 6. Limiting post; 7. Waterproof membrane. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0022] like Figures 1-5As shown, a laminated paperboard includes an upper corrugated cardboard 1 and a lower corrugated cardboard 2. Cushioning devices 3 are respectively bonded to the inner sides of the upper corrugated cardboard 1 and the lower corrugated cardboard 2. Each cushioning device 3 includes a first fixing plate 31 fixedly connected to the upper corrugated cardboard 1, a second fixing plate 32 fixedly connected to the lower corrugated cardboard 2, and a plurality of elastic metal wires 33 fixed between the first fixing plate 31 and the second fixing plate 32. The elastic metal wires 33 are curved, and an anti-detachment device is provided in the middle of each of the plurality of elastic metal wires 33 to prevent the elastic metal wires 33 from falling off.

[0023] In this specific embodiment, the coated paperboard is placed inside the carton to separate objects. When a heavy object exerts pressure on the upper corrugated paperboard 1, the elastic wire 33 undergoes elastic deformation, which improves the buffering capacity and compressive strength of the coated paperboard. Even when the corrugated layers of the upper corrugated paperboard 1 and the lower corrugated paperboard 2 are damaged, it still has buffering performance, thus improving the service life of the coated paperboard.

[0024] In another specific embodiment of this utility model, an adhesive layer 5 is provided between the upper corrugated cardboard 1 and the first fixing plate 31, and between the lower corrugated cardboard 2 and the second fixing plate 32.

[0025] Specifically, the anti-fall-off device is a connecting plate 4 set on a plurality of elastic metal wires 33. The four edges of the connecting plate 4 each have an edge portion 41, which is located at the opening formed by the upper corrugated cardboard 1 and the lower corrugated cardboard 2.

[0026] Specifically, the edge portion 41 has a hyperboloid arc structure in cross-section and is elastic. When the upper corrugated cardboard 1 is compressed, the elastic metal wire 33 deforms first. After the upper and lower ends of the edge portion 41 contact the upper corrugated cardboard 1 and the lower corrugated cardboard 2 respectively, the edge portion 41 begins to deform. The connecting plate 4 connects multiple elastic metal wires 33, effectively preventing some elastic metal wires 33 from falling off. The edge portion 41, the upper corrugated cardboard 1, and the lower corrugated cardboard 2 can surround the elastic metal wires 33. When some elastic metal wires 33 fall off, it can effectively prevent the elastic metal wires 33 from entering the carton and piercing objects.

[0027] Specifically, multiple limiting posts 6 are respectively provided on the inner sides of the upper corrugated cardboard 1 and the lower corrugated cardboard 2. The multiple limiting posts 6 are intersected with multiple elastic metal wires 33, and a gap is left between the limiting posts 6 and the connecting plate 4.

[0028] Specifically, the limiting post 6 is made of rubber. By setting the limiting post 6, when the lower end of the limiting post 6 abuts against the connecting plate 4, the problem of puncturing the connecting plate 4 can be effectively avoided.

[0029] Specifically, the upper corrugated cardboard 1 and the lower corrugated cardboard 2 are provided with a waterproof membrane 7. By providing the waterproof membrane 7, the problem of moisture penetrating into the interior of the coated cardboard is effectively prevented.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] 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.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A laminated paperboard, comprising an upper corrugated board (1) and a lower corrugated board (2), characterized in that: The upper corrugated cardboard (1) and the lower corrugated cardboard (2) are respectively bonded with cushioning devices (3). The cushioning device (3) includes a first fixing plate (31) fixedly connected to the upper corrugated cardboard (1), a second fixing plate (32) fixedly connected to the lower corrugated cardboard (2), and a plurality of elastic metal wires (33) fixed between the first fixing plate (31) and the second fixing plate (32). The elastic metal wires (33) are curved, and the middle of the plurality of elastic metal wires (33) is provided with an anti-detachment device for preventing the elastic metal wires (33) from falling off.

2. The coated paperboard according to claim 1, characterized in that, An adhesive layer (5) is provided between the upper corrugated cardboard (1) and the first fixing plate (31) and between the lower corrugated cardboard (2) and the second fixing plate (32).

3. The coated paperboard according to claim 1, characterized in that, The anti-fall-off device is a connecting plate (4) set on a plurality of elastic metal wires (33). The four edges of the connecting plate (4) each have an edge portion (41), which is set at the opening position formed by the upper corrugated cardboard (1) and the lower corrugated cardboard (2).

4. The coated paperboard according to claim 3, characterized in that, The edge portion (41) has a hyperboloid arc structure in cross section and is elastic.

5. A laminated paperboard according to claim 4, characterized in that, Multiple limiting posts (6) are respectively provided on the inner sides of the upper corrugated cardboard (1) and the lower corrugated cardboard (2). The multiple limiting posts (6) are intersected with multiple elastic metal wires (33), and a gap is left between the limiting posts (6) and the connecting plate (4).

6. A laminated paperboard according to claim 5, characterized in that, The limiting post (6) is made of rubber.

7. A laminated paperboard according to any one of claims 1 to 6, characterized in that, The upper corrugated cardboard (1) and the lower corrugated cardboard (2) are provided with a waterproof membrane (7).

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