Pressure-resistant corrugated board

Abstract

The utility model discloses a pressure-resistant corrugated board, and relates to the technical field of corrugated paperboards, the pressure-resistant corrugated board comprises two outer-layer paperboards, and a spiral buffer mechanism and an arc-shaped buffer mechanism are sequentially arrayed between the two outer-layer paperboards; the spiral buffering mechanism comprises a left spiral which is fixedly connected with the surfaces of the two outer-layer paperboards in an abutting mode, and the surfaces of the two outer-layer paperboards are connected with a right spiral which is spirally wound with the left spiral in an abutting mode; the arc-shaped buffering mechanism comprises an arc-shaped plate which abuts against and is fixed to the surfaces of the two outer-layer paper boards, and a plurality of supporting rods used for supporting are fixed between the two sides of the surface of the arc-shaped plate and the upper-layer outer-layer paper board in a glued mode. In conclusion, the device has the advantages that the structural design is reasonable, the contact area between the pressure-resistant structure and the outer-layer paperboard is large, and various pressure-resistant structures are arranged, so that the pressure resistance of the corrugated paperboard is greatly improved.

Description

Technical Field

[0001] The present application relates to the field of corrugated paper, and in particular to a pressure-resistant corrugated paperboard. Background Art

[0002] Corrugated cardboard is a multi-layer adhesive body, which consists of at least one layer of wavy core paper and one layer of cardboard. It has high mechanical strength, elasticity and extensibility. It is mainly used to make cartons, carton sandwiches and other packaging materials for fragile goods.

[0003] For example, patent number CN201922347237.8 discloses a structurally stable pressure-resistant corrugated paperboard, which includes an upper paperboard and a lower paperboard. The side walls of the upper paperboard and the lower paperboard facing each other are fixedly connected with support rods. A plurality of paper core boards are arranged between the upper paperboard and the lower paperboard, and the plurality of paper core boards are fixedly bonded to the upper paperboard and the lower paperboard respectively by adhesives. A plurality of elastic rods are symmetrically arranged on one side of one support rod facing the other support rod. However, there are still the following deficiencies in actual use:

[0004] Multiple X-shaped structures are used to achieve the support effect, but the number of such structures is large and the pressure at the joints is strong, which can easily damage the corrugated cardboard. At the same time, the foaming material particles are filled, which increases the difficulty of manufacturing. Incomplete filling reduces the overall compressive strength of the corrugated cardboard. Summary of the invention

[0005] In order to improve the compressive strength of corrugated paperboard, the present application provides a pressure-resistant corrugated paperboard.

[0006] The present application provides a pressure-resistant corrugated paperboard adopting the following technical solution:

[0007] A pressure-resistant corrugated paperboard comprises two outer paperboards, wherein a spiral buffer mechanism and an arc-shaped buffer mechanism are arranged in sequence between the two outer paperboards;

[0008] The spiral buffer mechanism comprises a left spiral abutting and fixing with the two outer paperboard surfaces, and the two outer paperboard surfaces abut with a right spiral spirally wound with the left spiral;

[0009] The arc-shaped buffer mechanism comprises an arc-shaped plate fixedly abutting against the surfaces of the two outer paperboards, and a plurality of supporting rods for support are glued and fixed between the two sides of the surface of the arc-shaped plate and the upper outer paperboard.

[0010] By adopting the above technical solution, two outer paperboards, the spiral buffer mechanism and the arc buffer mechanism constitute the main structure of the corrugated paperboard, and the reasonable structure of the spiral buffer mechanism and the arc buffer mechanism can effectively improve the compressive strength of the corrugated paperboard.

[0011] Preferably, the two outer paperboards each include a moisture-proof layer fixedly connected to the inner paperboard, and the two moisture-proof layers face outwards.

[0012] By adopting the above technical solution, the moisture-proof layer can prevent the corrugated cardboard from getting damp and softening, thereby affecting the strength of the corrugated cardboard structure.

[0013] Preferably, the spiral buffer mechanism further comprises a column fixedly arranged between the left spiral and the right spiral, and the column is arranged perpendicular to the outer paperboard.

[0014] By adopting the above technical solution, the arrangement of the left spiral and the right spiral can further utilize the structural advantages to enhance the compressive strength of the corrugated cardboard.

[0015] Preferably, the arc-shaped buffer mechanism further comprises an arc-shaped piece 1 and an arc-shaped piece 2 which are cross-fixed on the inner circle of the arc-shaped plate.

[0016] By adopting the above technical solution, the cross-arrangement of the arc piece 1 and the arc piece 2 has elasticity and can limit the deformation of the arc plate, thereby increasing the structural strength of the device.

[0017] Preferably, the curved parts of the arc-shaped piece 1 and the arc-shaped piece 2 face upward.

[0018] By adopting the above technical solution, the upward bending parts of the arc-shaped piece 1 and the arc-shaped piece 2 are more in line with the structural design, thereby increasing the compressive strength of the device.

[0019] Preferably, a plurality of groups of platforms are sequentially provided on two symmetrical sides of the surface of the arc-shaped plate, the upper end of each group of the platforms is fixedly connected to a support rod, and a fixing plate fixed to the upper inner paperboard is fixedly provided on the upper end of the support rod.

[0020] By adopting the above technical solution, the design of the platform can increase the contact area with the support rod, thereby achieving better support.

[0021] Preferably, the upper end surface of the arc-shaped plate is provided with a horizontal surface fixed to the inner paperboard of the upper layer.

[0022] By adopting the above technical solution, the setting of the horizontal plane can increase the contact area between the curved plate and the surface of the inner paperboard and reduce the single point pressure.

[0023] Preferably, both ends of the arc-shaped plate are fixedly provided with baffles fixedly connected to the inner paperboard of the lower layer, and the baffles are preferably made of paper.

[0024] By adopting the above technical solution, the setting of the baffle can limit the movement of the two ends of the arc plate, so that the arc plate is kept in the pressure-resistant structure.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The spiral buffer mechanism can be used to initially improve the pressure resistance of corrugated paperboard and increase the contact area between structures, thereby avoiding damage to the paper surface caused by single-point force on the corrugated paper;

[0027] 2. The arc-shaped buffer mechanism can further improve the pressure resistance of the corrugated paperboard, and cooperate with the spiral buffer mechanism to ultimately achieve stronger pressure resistance and structural strength of the corrugated paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 For this application, pressure-resistant corrugated cardboard;

[0029] Figure 2 For this application, pressure-resistant corrugated cardboard;

[0030] Figure 3 This application is for pressure-resistant corrugated cardboard.

[0031] Reference numerals: 1, outer paperboard; 11, moisture-proof layer; 12, inner paperboard;

[0032] 2. Spiral buffer mechanism; 21. Left spiral; 22. Right spiral; 23. Column;

[0033] 3. arc-shaped buffer mechanism; 31. arc-shaped plate; 32. support rod; 33. platform; 34. fixed plate;

[0034] 4. Arc-shaped piece 1; 5. Arc-shaped piece 2; 6. Baffle bar; 7. Horizontal plane. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1 —3 Provide further details of this application.

[0036] The embodiment of the present application discloses a pressure-resistant corrugated paperboard.

[0037] Example 1

[0038] Reference Figure 1 A pressure-resistant corrugated paperboard includes two outer paperboards 1. The two outer paperboards 1 include an inner paperboard 12 and a moisture-proof layer 11 fixed to the inner paperboard 12. The two moisture-proof layers 11 face outward to increase the waterproof effect. This is a prior art and will not be described in detail.

[0039] The two outer paperboard layers 1 can form a frame of the corrugated paperboard.

[0040] Reference Figure 2 A spiral buffer mechanism 2 and an arc buffer mechanism 3 are arranged in sequence between the two outer paperboards 1, and the spiral buffer mechanism 2 and the arc buffer mechanism 3 are alternately arranged as shown in FIG. Figure 2 As shown, pressure resistance and strong support of corrugated paper can be achieved.

[0041] By setting a plurality of spiral buffer mechanisms 2 and arc buffer mechanisms 3 for array fixing, the length and width of the corrugated paperboard can be formed, thereby improving the pressure resistance effect.

[0042] Reference Figure 2 The spiral buffer mechanism 2 includes a left spiral 21 that is abutted against and glued to the surfaces of the two outer cardboards 1, and a right spiral 22 is abutted against the surfaces of the two outer cardboards 1. The right spiral 22 and the left spiral 21 are spirally wound around each other to form a DNA-like structure that effectively improves the support effect and compressive strength. The spiral buffer mechanism 2 also includes a column 23 fixed between the left spiral 21 and the right spiral 22. The column 23 is preferably cylindrical and has a diameter smaller than the diameter of the left spiral 21 and the right spiral 22, so that it can be fixed to the left spiral 21 and the right spiral 22 by glue. It should be noted that both ends of the column 23 are provided with arc grooves for accommodating the left spiral 21 and the right spiral 22, so as to achieve better connection and fixed support. The column 23 is arranged vertically on the outer cardboard 1, which can effectively improve the longitudinal support of the corrugated cardboard.

[0043] By setting the right spiral 22 and the left spiral 21 to have several circular structures, the longitudinal support of the corrugated cardboard can be effectively increased, and at the same time, the force in the direction shown by the arrow has better pressure resistance. The set column 23 further strengthens the circular structure of the right spiral 22 and the left spiral 21.

[0044] Reference Figure 2 The arc-shaped buffer mechanism 3 includes an arc-shaped plate 31 fixedly abutting against the lower end surfaces of the two inner paperboards 12. The upper end surface of the arc-shaped plate 31 is provided with a horizontal surface 7, and the horizontal surface 7 is glued and fixed to the lower end surface of the upper inner paperboard 12. The setting of the horizontal surface 7 can increase the contact area between the arc-shaped plate 31 and the upper inner paperboard 12, thereby reducing the contact pressure. A plurality of groups of platforms 33 (such as Figure 3 As shown in the figure, the vertical angle of the platform 33 is set to 90 degrees, so the support rod 32 will not interfere with the arc plate 31 when extending upward, the upper end of each group of platforms 33 is glued and fixed to the support rod 32, and a plurality of support rods 32 are arrayed on the platform 33. A fixing plate 34 is fixed to the upper end of the support rod 32, and the upper end surface of the fixing plate 34 is glued and fixed to the lower end of the upper inner paperboard 12. The fixing plate 34 is set to be circular and the diameter is much larger than the diameter of the support rod 32, thereby increasing the contact area between the inner paperboard 12.

[0045] The supporting effect can be achieved by setting up multiple support rods 32. When the outer paperboard 1 is subjected to force, the support rods 32 and the curved plate 31 will be squeezed. At this time, the two sides of the curved plate 31 will be deformed so that the curved plate 31 on both sides of the platform 33 will bulge. However, the support rods 32 have a downward pressure to limit the bulge of the curved plate 31, so that the curved plate 31 maintains its original state and reduces deformation, thereby improving the pressure resistance of the corrugated paperboard.

[0046] Reference Figure 3 The arc-shaped buffer mechanism 3 also includes an arc-shaped piece 1 4 which is fixedly arranged on the inner circle of the arc-shaped plate 31, and an inclined arc-shaped piece 2 5 is fixed to the middle part of the arc-shaped piece 1 4. The arc-shaped piece 2 5 is cross-arranged with the arc-shaped piece 1 4 and fixed. The arc-shaped piece 1 4 and the arc-shaped piece 2 5 are bent toward the inner paperboard 12 of the upper layer to form an arch.

[0047] The arc-shaped piece 2 5 and the arc-shaped piece 1 4 can further limit the deformation of the arc-shaped plate 31 , thereby improving the pressure resistance of the arc-shaped plate 31 .

[0048] Reference Figure 3 The two ends of the arc plate 31 are fixed with a baffle 6, and the lower end surface of the baffle 6 is fixed to the lower inner cardboard 12 by glue. The baffle 6 is preferably made of paper. The lower ends of the two ends of the arc plate 31 are preferably flat, and then completely fit with the lower inner cardboard 12, making the fit more firm.

[0049] The blocking strips 6 can prevent the two ends of the arc plate 31 from moving when a force is applied, thereby reducing the supporting effect of the arc plate 31 .

[0050] It should be noted that the two end faces of the left spiral 21 and the right spiral 22 are also set to be planes, which can better fit the inner paperboard 12 and increase the contact area. The left spiral 21 and the right spiral 22 can preferably be made of hard plastic material, which is light in weight and high in strength.

[0051] The implementation principle of a pressure-resistant corrugated paperboard in the embodiment of the present application is:

[0052] When the corrugated cardboard is subjected to a vertical longitudinal force, the impact force is transmitted to the left spiral 21 and the right spiral 22 through the outer cardboard 1. Since the left spiral 21 and the right spiral 22 are circular, they have better pressure resistance, and the pressure resistance of the left spiral 21 and the right spiral 22 is further increased by the arranged columns 23. The arrangement of the spiral can make every part of the corrugated cardboard withstand pressure, and the shape of the spiral enables it to disperse and withstand pressure more effectively. In the spiral structure, the pressure can be evenly distributed along the spiral line, thereby avoiding the problem of local stress concentration. This characteristic of dispersing pressure enables the spiral structure to maintain structural stability and integrity when subjected to high pressure.

[0053] At the same time, when the outer paperboard 1 transmits the impact force to the arc plate 31 and the support rod 32, the arc plate 31 cooperates with the support rod 32 to avoid a large deformation of the arc plate 31, giving full play to the characteristics of the arc. The arc piece 2 5 and the arc piece 1 4 can also achieve effective support, further improving the pressure resistance of the corrugated paperboard.

[0054] In summary, the device has a reasonable structural design, a large contact area between the pressure-resistant structure and the outer paperboard 1, and a variety of pressure-resistant structures, thereby greatly improving the pressure resistance of the corrugated paperboard.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pressure-resistant corrugated paperboard, characterized in that: It comprises two outer paperboards (1), with a spiral buffer mechanism (2) and an arc-shaped buffer mechanism (3) arranged in sequence between the two outer paperboards (1); The spiral buffer mechanism (2) comprises a left spiral (21) abutting and fixed against the surfaces of the two outer cardboard layers (1), and a right spiral (22) spirally wound around the left spiral (21) abutting against the surfaces of the two outer cardboard layers (1); The arc-shaped buffer mechanism (3) comprises an arc-shaped plate (31) fixedly abutting against the surfaces of the two outer cardboard layers (1), and a plurality of support rods (32) for support are glued and fixed between the two sides of the surface of the arc-shaped plate (31) and the upper outer cardboard layer (1).

2. The pressure-resistant corrugated paperboard according to claim 1, characterized in that: The two outer paperboards (1) each comprise a moisture-proof layer (11) fixedly connected to the inner paperboard (12), and the two moisture-proof layers (11) face outwards.

3. The pressure-resistant corrugated paperboard according to claim 1, characterized in that: The spiral buffer mechanism (2) further comprises a column (23) fixedly arranged between the left spiral (21) and the right spiral (22), wherein the column (23) is arranged perpendicular to the outer paperboard (1).

4. The pressure-resistant corrugated paperboard according to claim 1, characterized in that: The arc-shaped buffer mechanism (3) further comprises an arc-shaped piece 1 (4) and an arc-shaped piece 2 (5) which are cross-fixed on the inner circle of the arc-shaped plate (31).

5. The pressure-resistant corrugated paperboard according to claim 4, characterized in that: The curved parts of the arc-shaped piece 1 (4) and the arc-shaped piece 2 (5) face upward.

6. The pressure-resistant corrugated paperboard according to claim 2, characterized in that: A plurality of platforms (33) are sequentially provided on two symmetrical sides of the surface of the arc-shaped plate (31), the upper end of each group of platforms (33) is fixedly connected to a support rod (32), and a fixing plate (34) fixed to the upper inner paperboard (12) is fixedly provided on the upper end of the support rod (32).

7. The pressure-resistant corrugated paperboard according to claim 6, characterized in that: The upper end surface of the arc-shaped plate (31) is provided with a horizontal surface (7) fixed to the upper inner paperboard (12).

8. The pressure-resistant corrugated paperboard according to claim 7, characterized in that: Both ends of the arc-shaped plate (31) are fixedly provided with blocking strips (6) fixedly connected to the inner paperboard (12) of the lower layer, and the blocking strips (6) are made of paper.

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