Multi-layer corrugated board

Abstract

The utility model discloses a multilayer corrugated board which comprises backing paper and surface paper, core paper is arranged between the surface paper and the backing paper, and reinforced corrugated paper is arranged between the core paper and the backing paper and between the core paper and the surface paper. The reinforced corrugated paper comprises a corrugated paper body which is bent up and down in the length direction, the corrugated paper body comprises a plurality of inclined supporting pieces which are arranged in parallel, side holes which extend in the length direction and penetrate through all the inclined supporting pieces are formed in the corrugated paper body, and a reinforcing band connected with all the inclined supporting pieces penetrates through each side hole. The reinforcing band is a hard paper band; the number of the inserting grooves is equal to that of the inclined supporting pieces, the inserting grooves are matched with the inclined supporting pieces in a one-to-one mode, and the inclined supporting pieces are inserted into the inserting grooves. The corrugated board has the advantages of being good in lateral bending resistance and high in end face pressure resistance, and is complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of paper product processing, and more specifically, to a multi-layer corrugated paperboard. Background Art

[0002] After the paper strip is pressed into a corrugated shape, it can have better bending resistance in the direction perpendicular to the bending extension direction, but the end surface compression resistance is still weak. If two corrugated papers with perpendicular bending extension directions are compounded in a multi-layer corrugated paperboard, it can have good bending resistance in both the length and width directions, but the end surface compression resistance improvement effect is poor. Based on this, the utility model proposes a multi-layer corrugated paperboard. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned deficiencies in the prior art and to provide a multi-layer corrugated paperboard having the characteristics of good lateral bending resistance and strong end surface compression resistance.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows: the utility model involves a multi-layer corrugated paperboard, including a bottom paper and a face paper, a core paper is arranged between the face paper and the bottom paper, and a reinforced corrugated paper is arranged between the core paper and the bottom paper and between the core paper and the face paper;

[0005] The reinforced corrugated paper includes a corrugated paper body bent up and down along the length direction, the corrugated paper body includes a plurality of inclined support sheets arranged parallel to each other, and the corrugated paper body is provided with side holes extending along the length direction and passing through all the inclined support sheets, and each of the side holes is penetrated by a reinforcing belt connected to all the inclined support sheets.

[0006] The utility model is further configured as follows: the reinforcing belt is a hard paper belt; the reinforcing belt is provided with slots which are equal in number to the number of the oblique supporting pieces and which match one by one, and the oblique supporting pieces are inserted into the slots.

[0007] The utility model is further configured as follows: the side holes are arranged at intervals along the width direction of the corrugated paper body.

[0008] The utility model is further configured such that the spacing between two adjacent side holes is equal.

[0009] The utility model is further configured such that: the bending and extending direction of the reinforced corrugated paper between the core paper and the bottom paper and the bending and extending direction of the reinforced corrugated paper between the core paper and the surface paper are kept perpendicular.

[0010] In summary, the utility model has the following beneficial effects: the multi-layer corrugated paperboard involved in the utility model has holes opened on the side of the corrugated paper body, and reinforcing belts connected to all the oblique supporting sheets are inserted into the holes, so that when the corrugated paper body is subjected to pressure in the end direction, the lateral expansion amplitude is small and the pressure resistance is strong. In addition, two reinforced corrugated papers whose bending extension directions are kept perpendicular are compounded in the paperboard, which can give the paperboard bending resistance in the horizontal and vertical directions. While achieving good bending resistance, the end face pressure resistance is also strong, the overall function is perfect, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the utility model used to embody the reinforcement of corrugated paper;

[0013] Figure 3 It is a schematic diagram of the structure of the reinforcing belt used in the utility model. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0015] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0016] Example 1

[0017] See also Figures 1 to 3 As shown, a multi-layer corrugated paperboard involved in this embodiment includes a base paper 1 and a face paper 2, a core paper 3 is provided between the face paper 2 and the base paper 1, and a reinforced corrugated paper 100 is provided between the core paper 3 and the base paper 1 and between the core paper 3 and the face paper 2;

[0018] The reinforced corrugated paper 100 includes a corrugated paper body 4 bent up and down along the length direction, the corrugated paper body 4 includes a plurality of inclined support sheets 5 arranged parallel to each other, and the corrugated paper body 4 is provided with side holes 6 extending along the length direction and penetrating all the inclined support sheets 5, and each of the side holes 6 is penetrated by a reinforcing belt 7 connected to all the inclined support sheets 5.

[0019] Furthermore, the reinforcing belt 7 is a cardboard belt; the reinforcing belt 7 is provided with slots 8 which are equal in number to and matched with the oblique supporting pieces 5 , and the oblique supporting pieces 5 are inserted into the slots 8 .

[0020] Furthermore, the side holes 6 are arranged at intervals along the width direction of the corrugated paper body 4 .

[0021] Furthermore, the distances between two adjacent side holes 6 are equal.

[0022] In this embodiment, by opening side holes 6 on the inclined support sheets 5 and installing reinforcing belts 7 connected to all the inclined support sheets 5 in the holes, adjacent inclined support sheets 5 can be restrained from moving outward, so that the corrugated paper cannot be significantly deformed and collapsed when subjected to end surface pressure.

[0023] The slot 8 is provided to facilitate the insertion of the oblique support sheet 5 without adhesive, and the connection is convenient.

[0024] Example 2

[0025] See also Figures 1 to 3 As shown, the multi-layer corrugated paperboard involved in this embodiment is further configured on the basis of Example 1, so that the bending and extending direction of the reinforced corrugated paper 100 between the core paper 3 and the bottom paper 1 and the bending and extending direction of the reinforced corrugated paper 100 between the core paper 3 and the surface paper 2 remain perpendicular.

[0026] In this embodiment, the bidirectionally arranged reinforced corrugated paper 100 enables the paperboard to have good bending resistance in both the transverse and longitudinal directions.

[0027] The multi-layer corrugated paperboard involved in the utility model has holes opened on the side of the corrugated paper body, and reinforcing strips connected to all the oblique supporting sheets are inserted into the holes, so that when the corrugated paper body is subjected to pressure in the end direction, the lateral outward expansion amplitude is small and the pressure resistance is strong. Two reinforced corrugated papers whose bending extension directions are kept perpendicular are compounded in the paperboard, so that the paperboard can be endowed with bending resistance in the horizontal and vertical directions. While achieving good bending resistance, the end surface pressure resistance is also strong, the overall function is perfect, and the practicability is strong.

[0028] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0029] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A multi-layer corrugated paperboard, comprising a base paper and a face paper, wherein a core paper is provided between the face paper and the base paper, wherein: Reinforced corrugated paper is provided between the core paper and the bottom paper, and between the core paper and the surface paper; The reinforced corrugated paper includes a corrugated paper body bent up and down along the length direction, the corrugated paper body includes a plurality of inclined support sheets arranged parallel to each other, and the corrugated paper body is provided with side holes extending along the length direction and passing through all the inclined support sheets, and each of the side holes is penetrated by a reinforcing belt connected to all the inclined support sheets.

2. The multi-layer corrugated paperboard according to claim 1, characterized in that: The reinforcing belt is a hard paper belt; the reinforcing belt is provided with slots which are equal in number to and matched with the oblique supporting pieces, and the oblique supporting pieces are inserted into the slots.

3. The multi-layer corrugated paperboard according to claim 2, characterized in that: The side holes are arranged at intervals along the width direction of the corrugated paper body.

4. The multi-layer corrugated paperboard according to claim 3, characterized in that: The distances between two adjacent side holes are equal.

5. The multi-layer corrugated paperboard according to any one of claims 1 to 4, characterized in that: The bending and extending direction of the reinforced corrugated paper between the core paper and the bottom paper is kept perpendicular to the bending and extending direction of the reinforced corrugated paper between the core paper and the surface paper.

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