Composite laminated corrugated board

Abstract

The utility model provides a composite laminated corrugated board. The composite laminated corrugated board comprises: a middle layer; the first water-resisting layer is arranged at the bottom of the middle layer, and the bottom layer is arranged at the bottom of the first water-resisting layer; the arc-shaped laminated layer is arranged at the top of the middle layer, a second water-resisting layer is mounted at the top of the arc-shaped laminated layer, a top layer is arranged at the top of the second water-resisting layer, two mounting grooves are formed in the middle of the middle layer, and stress belts are arranged in the two mounting grooves. According to the composite laminated corrugated board provided by the utility model, the middle layer is made of cotton and hemp or glass fibers for enhancing the strength, and the stress belt is arranged in the middle of the middle layer, so that the rigidity is enhanced, and the strength can be enhanced through the structure when the composite laminated corrugated board needs to be bent into a corresponding shape; and structural damage caused by stretching or compression during bending is reduced, so that the situation that the bent part is broken due to stress in the later use process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of composite corrugated paperboard, in particular to composite laminated corrugated paperboard. Background Art

[0002] Corrugated cardboard is a multi-layer adhesive body, which is composed of at least one layer of corrugated core paper and one layer of cardboard. It has high mechanical strength and can withstand collisions and falls during transportation. The actual performance of corrugated cardboard depends on three factors: the characteristics of the core paper and cardboard and the structure of the carton itself.

[0003] Corrugated cardboard is a composite cardboard consisting of one or more layers of corrugated paper bonded between several layers of paper or cardboard. It is mostly used to make corrugated boxes. Corrugated cardboard is inexpensive, easy to process, and has good cushioning and compression resistance.

[0004] After the composite laminated corrugated cardboard is processed, it needs to be folded into the corresponding size according to the needs. After folding, the internal structure of the corrugated cardboard at the bent position will be stretched and damaged, and the bending position is easily broken due to the force during use.

[0005] Therefore, it is necessary to provide a composite laminated corrugated paperboard to solve the above-mentioned technical problems. Utility Model Content

[0006] The utility model provides a composite laminated corrugated paperboard, which solves the problem that when the corrugated paperboard is processed and folded into a corresponding size as required, the internal structure at the bending position is damaged, resulting in easy disconnection of the bending force during actual use.

[0007] In order to solve the above technical problems, the composite laminated corrugated paperboard provided by the utility model comprises: an intermediate layer;

[0008] A first waterproof layer, wherein the first waterproof layer is arranged at the bottom of the middle layer, and a bottom layer is arranged at the bottom of the first waterproof layer;

[0009] An arc-shaped stack is arranged on the top of the middle layer, a second waterproof layer is installed on the top of the arc-shaped stack, a top layer is arranged on the top of the second waterproof layer, two installation grooves are opened in the middle position of the middle layer, and stress belts are arranged inside the two installation grooves.

[0010] The structures at the top and bottom of the middle layer are bonded together by glue and are shaped by drying. The mounting groove is located in the middle of the middle layer near the front and back sides.

[0011] Preferably, a flame retardant layer is provided inside the middle layer, and the material of the stress-bearing belt is steel wire.

[0012] The flame retardant layer may be made of asbestos.

[0013] Preferably, the middle layer is made of cotton, linen, plastic or glass fiber material, and the first waterproof layer and the second waterproof layer are resin films or wax films.

[0014] Preferably, the top layer and the bottom layer are made of kraft paper, high-strength corrugated paper or white cardboard.

[0015] Fiber length, fiber thickness, paper strength, etc. of paperboard materials.

[0016] Preferably, the arc-shaped laminate is a corrugated plate.

[0017] The curved stack is made of pulp, mainly made of traditional straw pulp and waste paper.

[0018] Preferably, a plurality of support rings are installed on the top of the intermediate layer, and the tops of the support rings are all fixedly connected with support blocks.

[0019] The support ring and support block are located inside the arc of the arc stack. For details, please refer to Figure 4 .

[0020] Compared with the related art, the composite laminated corrugated paperboard provided by the utility model has the following beneficial effects:

[0021] The utility model provides a composite laminated corrugated paperboard. When the rigidity of the composite laminated corrugated paperboard at a bending point needs to be increased, during the processing, a first waterproof layer is first installed at the bottom of an intermediate layer, and an arc-shaped laminate is installed at the top of the intermediate layer. Then, a second waterproof layer is installed at the top of the arc-shaped laminate, and a top layer is installed at the top of the second waterproof layer, and a bottom layer is installed at the bottom of the first waterproof layer. Thus, the composite laminated corrugated paperboard is formed. When the composite laminated corrugated paperboard needs to be bent into a corresponding shape, the second waterproof layer and the top layer are compressed during the bending process, and the first waterproof layer and the bottom layer are stretched, and the top layer and the bottom layer of the intermediate layer are also compressed and stretched. Since the intermediate layer is made of cotton, linen or glass fiber with increased strength, and a stress belt is installed in the middle of the intermediate layer, the rigidity is increased. Through this structure, when the composite laminated corrugated paperboard needs to be bent into a corresponding shape, the strength is increased, and structural damage caused by stretching or compression during bending is reduced, thereby reducing the situation of stress disconnection at the bending point during later use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural schematic diagram of a preferred embodiment of the composite laminated corrugated paperboard provided by the utility model;

[0023] Figure 2 A structural schematic diagram of a force-bearing belt is provided for the utility model;

[0024] Figure 3A structural schematic diagram of the installation slot is provided for the utility model;

[0025] Figure 4 The utility model provides a structural schematic diagram of a support block.

[0026] Numbers in the figure: 1. middle layer, 2. arc-shaped stacked layer, 3. top layer, 4. bottom layer, 5. first waterproof layer, 6. second waterproof layer, 7. stress belt, 8. installation groove, 9. flame retardant layer, 10. support block, 11. support ring. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A structural schematic diagram of a preferred embodiment of the composite laminated corrugated paperboard provided by the utility model; Figure 2 A structural schematic diagram of a force-bearing belt is provided for the utility model; Figure 3 A structural schematic diagram of the installation slot is provided for the utility model; Figure 4 The utility model provides a structural schematic diagram of the support block. The composite laminated corrugated paperboard comprises: an intermediate layer 1;

[0029] A first waterproof layer 5, wherein the first waterproof layer 5 is arranged at the bottom of the middle layer 1, and a bottom layer 4 is arranged at the bottom of the first waterproof layer 5;

[0030] The arc-shaped stack 2 is arranged on the top of the middle layer 1, a second waterproof layer 6 is installed on the top of the arc-shaped stack 2, a top layer 3 is arranged on the top of the second waterproof layer 6, two installation grooves 8 are opened in the middle position of the middle layer 1, and stress belts 7 are arranged inside the two installation grooves 8.

[0031] The top and bottom structures of the middle layer 1 are glued together and shaped by drying. The mounting groove 8 is located in the middle of the middle layer 1 near the front and back sides and runs through both sides of the middle layer 1. For details, please refer to Figure 2 , the bottom layer 4 and the top layer 3 are both corrugated cardboard.

[0032] A flame retardant layer 9 is provided inside the middle layer 1, and the material of the stress-bearing belt 7 is steel wire.

[0033] The flame retardant layer 9 can be made of asbestos, and the steel wire can increase the strength of the middle position of the middle layer 1.

[0034] The middle layer 1 is made of cotton, linen, plastic or glass fiber material, and the first waterproof layer 5 and the second waterproof layer 6 are resin films or wax films.

[0035] The first waterproof layer 5 and the second waterproof layer 6 can prevent moisture from penetrating the composite laminated corrugated paperboard.

[0036] The top layer 3 and the bottom layer 4 are made of kraft paper or high-strength corrugated paper or white cardboard.

[0037] Fiber length, fiber thickness, paper strength, etc. of paperboard materials.

[0038] The arc-shaped laminate 2 is a corrugated plate.

[0039] The arc-shaped laminate 2 is made of pulp, which is mainly made of native straw pulp and waste paper through pulping to make an original paperboard similar to yellow paperboard.

[0040] A plurality of support rings 11 are installed on the top of the intermediate layer 1 , and a support block 10 is fixedly connected to the top of each of the support rings 11 .

[0041] The support ring 11 and the support block 10 are located inside the arc of the arc stack 2. For details, please refer to Figure 4 The top of the support block 10 contacts the bottom of the arc-shaped stack 2 to provide support.

[0042] The working principle of the composite laminated corrugated paperboard provided by the utility model is as follows:

[0043] During the processing, the first waterproof layer 5 is first installed at the bottom of the middle layer 1, and the arc-shaped laminated layer 2 is installed on the top of the middle layer 1. Then, the second waterproof layer 6 is installed on the top of the arc-shaped laminated layer 2, and the top layer 3 is installed on the top of the second waterproof layer 6, and the bottom layer 4 is installed on the bottom of the first waterproof layer 5. Thus, a composite laminated corrugated cardboard is formed. When the composite laminated corrugated cardboard needs to be bent into a corresponding shape, the second waterproof layer 6 and the top layer 3 will be compressed during the bending process, and the first waterproof layer 5 and the bottom layer 4 will be stretched, and the top layer and the bottom layer of the middle layer 1 will also be compressed and stretched. Since the middle layer 1 is made of cotton, linen or glass fiber to increase strength, and a stress belt 7 is installed in the middle of the middle layer 1, the rigidity is increased.

[0044] Compared with the related art, the composite laminated corrugated paperboard provided by the utility model has the following beneficial effects:

[0045] When it is necessary to increase the rigidity of the bending part of the composite laminated corrugated cardboard, during the processing, the first waterproof layer 5 is first installed at the bottom of the middle layer 1, and the arc-shaped laminated layer 2 is installed on the top of the middle layer 1, and then the second waterproof layer 6 is installed on the top of the arc-shaped laminated layer 2, and the top layer 3 is installed on the top of the second waterproof layer 6, and the bottom layer 4 is installed on the bottom of the first waterproof layer 5, thereby forming a composite laminated corrugated cardboard. When the composite laminated corrugated cardboard needs to be bent into a corresponding shape, the second waterproof layer 6 and the top layer 3 will be compressed during the bending process, and the first waterproof layer 5 and the bottom layer 4 will be stretched, and the top layer and the bottom layer of the middle layer 1 will also be compressed and stretched. Since the middle layer 1 is made of cotton, linen or glass fiber to increase the strength, and a stress belt 7 is installed in the middle of the middle layer 1, the rigidity is increased. Through this structure, when the composite laminated corrugated cardboard needs to be bent into a corresponding shape, the strength is increased, and the structural damage caused by stretching or compression during bending is reduced, thereby reducing the stress disconnection at the bending part during later use.

[0046] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Composite laminated corrugated paperboard, characterized in that: include: Middle layer; A first waterproof layer, wherein the first waterproof layer is arranged at the bottom of the middle layer, and a bottom layer is arranged at the bottom of the first waterproof layer; An arc-shaped stack is arranged on the top of the middle layer, a second waterproof layer is installed on the top of the arc-shaped stack, a top layer is arranged on the top of the second waterproof layer, two installation grooves are opened in the middle position of the middle layer, and stress belts are arranged inside the two installation grooves.

2. The composite laminated corrugated paperboard according to claim 1, characterized in that: A flame retardant layer is arranged inside the middle layer, and the material of the stress-bearing belt is steel wire.

3. The composite laminated corrugated paperboard according to claim 1, characterized in that: The middle layer is made of cotton, linen, plastic or glass fiber material, and the first waterproof layer and the second waterproof layer are resin films or wax films.

4. The composite laminated corrugated paperboard according to claim 1, characterized in that: The top layer and the bottom layer are made of kraft paper or high-strength corrugated paper or white cardboard.

5. The composite laminated corrugated paperboard according to claim 1, characterized in that: The arc-shaped laminate is a corrugated plate.

6. The composite laminated corrugated paperboard according to claim 1, characterized in that: A plurality of support rings are installed on the top of the middle layer, and the tops of the support rings are all fixedly connected with support blocks.

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