Multi-layer corrugated board

Abstract

The utility model discloses a multi-layer corrugated board which comprises a corrugated board base board, a face board is arranged at the upper end of the corrugated board base board, a first non-woven fabric adheres to the top of the corrugated board base board, a bottom board is arranged at the lower end of the corrugated board base board, a second non-woven fabric adheres to the bottom of the corrugated board base board, and the bottom of the corrugated board base board is provided with a second non-woven fabric. A first side plate and a second side plate are arranged on the two sides of the corrugated board base plate and located between the face plate and the bottom plate respectively. U-shaped plastic corner connectors are fixed to the two ends of the first side plate and the two ends of the second side plate correspondingly, and a first counter bore and a second counter bore are formed in the top and the bottom of each U-shaped plastic corner connector correspondingly; the novel corrugated board has the function of improving the overall structural strength and tensile strength of the corrugated board by using the non-woven fabric, and the corrugated paper core can be limited, so that the service life of the corrugated board can be effectively prolonged.

Description

Technical Field

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

[0002] Corrugated cardboard, also known as corrugated cardboard, is a multi-layer composite material made by gluing wavy core paper and cardboard. Corrugated cardboard has high mechanical strength and good cushioning properties. It is mainly used for packaging various commodities such as food, electronic products, and daily necessities to protect the safety of commodities during transportation and storage.

[0003] However, the existing corrugated cardboard has a single structure and lacks the function of using non-woven fabric to closely fit the surface of the substrate to improve the overall structural strength and tensile strength of the corrugated cardboard, resulting in a short service life of the corrugated cardboard. For this reason, we propose a multi-layer corrugated cardboard. Utility Model Content

[0004] In response to the problems in the existing technology, the utility model provides a multi-layer corrugated cardboard. The new corrugated cardboard has the function of using non-woven fabric to improve the overall structural strength and tensile strength of the corrugated cardboard, and can limit the corrugated paper core, thereby effectively extending the service life of the corrugated cardboard.

[0005] The technical solution adopted by the utility model to solve the technical problem is a multi-layer corrugated cardboard, comprising a corrugated cardboard substrate, a panel is provided on the upper end of the corrugated cardboard substrate, a first non-woven fabric is bonded to the top of the corrugated cardboard substrate, a bottom plate is provided on the lower end of the corrugated cardboard substrate, a second non-woven fabric is bonded to the bottom of the corrugated cardboard substrate, and a first side plate and a second side plate are respectively provided on both sides of the corrugated cardboard substrate and located between the panel and the bottom plate;

[0006] Both ends of the No. 1 side panel and the No. 2 side panel are fixed with U-shaped plastic angle brackets, and the top and bottom of the U-shaped plastic angle bracket are respectively provided with No. 1 countersunk holes and No. 2 countersunk holes, and the upper and lower ends of the U-shaped plastic angle bracket are respectively provided with flat head pins and nuts.

[0007] By adopting the above technical solution, the personnel embed the No. 1 non-woven fabric and the No. 2 non-woven fabric on the surface of the corrugated cardboard substrate and fit them tightly together. The No. 1 non-woven fabric and the No. 2 non-woven fabric can be used to improve the overall structural strength of the corrugated cardboard. In addition, the No. 1 non-woven fabric and the No. 2 non-woven fabric also have good tensile strength, which can effectively reduce the pressure and tension from the outside, so as to improve the overall tensile strength of the corrugated cardboard.

[0008] The installation slot can limit the position of the corrugated paper core to prevent the corrugated paper core from displacement when subjected to vibration or impact;

[0009] Moisture-proof particles can absorb moisture molecules around the corrugated cardboard to keep the air dry.

[0010] Specifically, positioning grooves are provided at the corners around the panel and the bottom plate, and bolt holes corresponding to the No. 1 countersunk hole and the No. 2 countersunk hole are provided inside the positioning grooves.

[0011] By adopting the above technical solution, the positioning groove facilitates the installation of the top and bottom of the U-shaped plastic angle bracket, and the positioning groove prevents the top and bottom of the U-shaped plastic angle bracket from protruding from the panel and the base plate, and does not occupy the installation space. The bolt hole facilitates the flat head pin to pass through the U-shaped plastic angle bracket.

[0012] Specifically, a mounting groove is provided inside the corrugated paperboard substrate, and a corrugated paper core is embedded in the mounting groove.

[0013] Specifically, hollow cavities are formed inside the corrugated cardboard substrate and at the top and bottom of the mounting groove.

[0014] By adopting the above technical solution, the hollow cavity can not only effectively reduce the overall weight of the corrugated cardboard substrate, but also facilitate the arrangement of moisture-proof particles.

[0015] Specifically, the interior of the hollow cavity is filled with moisture-proof particles, and the moisture-proof particles are made of silica gel particles.

[0016] Beneficial effects of the present invention: In the multi-layer corrugated cardboard described in the present invention, personnel embed the No. 1 non-woven fabric and the No. 2 non-woven fabric on the surface of the corrugated cardboard substrate and fit them tightly together, so that the No. 1 non-woven fabric and the No. 2 non-woven fabric can be used to improve the overall structural strength of the corrugated cardboard. Moreover, the No. 1 non-woven fabric and the No. 2 non-woven fabric also have good tensile strength, which can effectively reduce the pressure and tension from the outside to improve the overall tensile strength of the corrugated cardboard. In the multi-layer corrugated cardboard described in the present invention, the mounting groove can limit the corrugated paper core to prevent the corrugated paper core from being displaced when subjected to vibration or impact. In the multi-layer corrugated cardboard described in the present invention, the moisture-proof particles can absorb moisture molecules around the corrugated cardboard to keep the air dry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the U-shaped plastic corner bracket of the present utility model;

[0020] Figure 3 This is a schematic diagram of the positioning groove structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the moisture-proof particle structure of the present utility model.

[0022] In the figure: 1. Corrugated cardboard substrate; 2. Panel; 3. Bottom plate; 4. Mounting slot; 5. Corrugated paper core; 6. Non-woven fabric No. 1; 7. Non-woven fabric No. 2; 8. Side panel No. 1; 9. Side panel No. 2; 10. U-shaped plastic corner bracket; 11. Countersunk hole No. 1; 12. Countersunk hole No. 2; 13. Flat head pin; 14. Nut; 15. Positioning slot; 16. Bolt hole; 17. Hollow cavity; 18. Moisture-proof particles. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In order to extend the service life of corrugated cardboard, Figure 1-4 As shown, the multi-layer corrugated cardboard described in the utility model includes a corrugated cardboard substrate 1, a panel 2 is provided on the upper end of the corrugated cardboard substrate 1, a first non-woven fabric 6 is bonded to the top of the corrugated cardboard substrate 1, a bottom plate 3 is provided on the lower end of the corrugated cardboard substrate 1, a second non-woven fabric 7 is bonded to the bottom of the corrugated cardboard substrate 1, and a first side plate 8 and a second side plate 9 are respectively provided on both sides of the corrugated cardboard substrate 1 and located between the panel 2 and the bottom plate 3;

[0025] Both ends of the No. 1 side panel 8 and the No. 2 side panel 9 are fixed with U-shaped plastic angle brackets 10, and the top and bottom of the U-shaped plastic angle bracket 10 are respectively provided with a No. 1 countersunk hole 11 and a No. 2 countersunk hole 12, and the upper and lower ends of the U-shaped plastic angle bracket 10 are respectively provided with a flat head pin 13 and a nut 14.

[0026] When in use, personnel embed the No. 1 non-woven fabric 6 and the No. 2 non-woven fabric 7 on the surface of the corrugated cardboard substrate 1 and fit them tightly together. The No. 1 non-woven fabric 6 and the No. 2 non-woven fabric 7 can be used to improve the overall structural strength of the corrugated cardboard. In addition, the No. 1 non-woven fabric 6 and the No. 2 non-woven fabric 7 also have good tensile strength, which can effectively reduce the pressure and tension from the outside to improve the overall tensile strength of the corrugated cardboard.

[0027] The mounting groove 4 can limit the position of the corrugated paper core 5 to prevent the corrugated paper core 5 from being displaced when subjected to vibration or impact;

[0028] The moisture-proof particles 18 can absorb moisture molecules around the corrugated cardboard to keep the air dry.

[0029] For example, Figure 3As shown, positioning grooves 15 are provided at the corners around the panel 2 and the bottom plate 3 , and bolt holes 16 corresponding to the No. 1 countersunk hole 11 and the No. 2 countersunk hole 12 are provided inside the positioning grooves 15 .

[0030] When in use, the positioning groove 15 facilitates the installation of the top and bottom of the U-shaped plastic angle bracket 10, and the positioning groove 15 ensures that the top and bottom of the U-shaped plastic angle bracket 10 will not protrude from the panel 2 and the base plate 3, and will not occupy installation space. The bolt hole 16 facilitates the flat head pin 13 to pass through the U-shaped plastic angle bracket 10.

[0031] For example, Figure 1 As shown, a mounting groove 4 is provided inside the corrugated cardboard substrate 1 , and a corrugated paper core 5 is embedded inside the mounting groove 4 .

[0032] When in use, the mounting groove 4 can limit the position of the corrugated paper core 5 to prevent the corrugated paper core 5 from being displaced when subjected to vibration or impact.

[0033] For example, Figure 4 As shown, hollow cavities 17 are formed inside the corrugated cardboard substrate 1 and at the top and bottom of the mounting slot 4 .

[0034] When in use, the hollow cavity 17 can not only effectively reduce the overall weight of the corrugated cardboard substrate 1 , but also facilitate the placement of the moisture-proof particles 18 .

[0035] For example, Figure 4 As shown, the interior of the hollow cavity 17 is filled with moisture-proof particles 18, and the moisture-proof particles 18 are made of silica gel particles.

[0036] When in use, the moisture-proof particles 18 have good adsorption capacity and can effectively remove moisture molecules to keep the air dry.

[0037] When the present invention is in use, personnel bond the No. 1 non-woven fabric 6 and the No. 2 non-woven fabric 7 to the top and bottom of the corrugated cardboard substrate 1, respectively, so that the No. 1 non-woven fabric 6 and the No. 2 non-woven fabric 7 can be closely attached to the surface of the corrugated cardboard substrate 1, thereby improving the overall structural strength of the corrugated cardboard. At the same time, the No. 1 non-woven fabric 6 and the No. 2 non-woven fabric 7 also have good tensile strength. When the No. 1 non-woven fabric 6 and the No. 2 non-woven fabric 7 are embedded in the corrugated cardboard, they can effectively reduce the pressure and tension from the outside, thereby improving the overall tensile strength of the corrugated cardboard.

[0038] Furthermore, the mounting groove 4 can limit the position of the corrugated paper core 5 to prevent the corrugated paper core 5 from being displaced when subjected to vibration or impact;

[0039] Furthermore, the moisture-proof particles 18 can absorb moisture molecules around the corrugated cardboard to keep the air dry.

[0040] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. These are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present utility model.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In this utility model, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection;

[0042] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-layer corrugated cardboard, characterized in that: The invention comprises a corrugated cardboard substrate (1), wherein a panel (2) is provided at the upper end of the corrugated cardboard substrate (1), a first non-woven fabric (6) is bonded to the top of the corrugated cardboard substrate (1), a bottom plate (3) is provided at the lower end of the corrugated cardboard substrate (1), a second non-woven fabric (7) is bonded to the bottom of the corrugated cardboard substrate (1), and a first side plate (8) and a second side plate (9) are respectively provided on both sides of the corrugated cardboard substrate (1) and located between the panel (2) and the bottom plate (3); Both ends of the No. 1 side panel (8) and the No. 2 side panel (9) are fixed with U-shaped plastic corner brackets (10), the top and bottom of the U-shaped plastic corner brackets (10) are respectively provided with a No. 1 countersunk hole (11) and a No. 2 countersunk hole (12), and the upper and lower ends of the U-shaped plastic corner brackets (10) are respectively provided with a flat head pin (13) and a nut (14).

2. The multi-layer corrugated paperboard according to claim 1, characterized in that: Positioning grooves (15) are provided at the corners around the panel (2) and the bottom plate (3), and bolt holes (16) corresponding to the No. 1 countersunk hole (11) and the No. 2 countersunk hole (12) are provided inside the positioning grooves (15).

3. The multi-layer corrugated paperboard according to claim 1, characterized in that: A mounting groove (4) is provided inside the corrugated cardboard substrate (1), and a corrugated paper core (5) is embedded inside the mounting groove (4).

4. The multi-layer corrugated paperboard according to claim 1, characterized in that: Hollow cavities (17) are provided inside the corrugated cardboard substrate (1) and at the top and bottom of the mounting groove (4).

5. The multi-layer corrugated paperboard according to claim 4, characterized in that: The interior of the hollow cavity (17) is filled with moisture-proof particles (18), and the moisture-proof particles (18) are made of silica gel particles.

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