Double-core corrugated board structure

Abstract

The utility model discloses a double-core corrugated board structure, which relates to the technical field of corrugated boards, improves the bearing capacity, compression resistance and buffer performance of corrugated boards, and comprises a bottom layer, and a compression resistance mechanism is arranged above the bottom layer; the compression resisting mechanism comprises a first corrugated core, the first corrugated core is fixed to the top end of the bottom layer, and a second corrugated core is arranged on one side of the first corrugated core. The bearing strength is improved after the first corrugated cores and the second corrugated cores are attached in a staggered mode, the bearing stability is improved while the weight is reduced through the triangular load reducing cavities, and the longitudinal reinforcing ribs and the transverse reinforcing ribs are matched, so that the first corrugated cores and the second corrugated cores are stably connected, a certain buffering effect is improved, and the service life of the corrugated cores is prolonged. The triangular corrugated units in the first corrugated core and the second corrugated core improve the impact resistance, and the buffer effect and the impact resistance are further improved by matching with the elastic bearing units.

Description

Technical Field

[0001] The utility model relates to the field of corrugated paperboard, in particular to a double-core corrugated paperboard structure. Background Art

[0002] Corrugated cardboard is a board consisting of a corrugated core layer and a covering layer formed between two or more layers of cardboard, commonly known as "corrugated sheet", "corrugated paper", "corrugated core paper", "corrugated paper core", "corrugated base paper". At the same time, corrugated cardboard is an important packaging material and is widely used in commodity packaging due to its light weight, high strength and recyclability.

[0003] At present, the market mainly improves the performance of corrugated cardboard by increasing its thickness or using higher strength paper materials, so that the corrugated cardboard can improve its load-bearing capacity, compression resistance and cushioning performance;

[0004] In the process of realizing the present utility model, the inventors found that there are at least the following problems in the technology: the traditional reinforcement method fails to fundamentally change the structure of the corrugated cardboard, so its performance improvement is limited, while increasing material consumption and cost. Therefore, a double-core corrugated cardboard structure is now proposed. Utility Model Content

[0005] In order to improve the problems of increasing the load-bearing capacity, compression resistance and buffering performance of corrugated paperboard, the utility model provides a double-core corrugated paperboard structure.

[0006] The utility model provides a double-core corrugated paperboard structure, which adopts the following technical solutions:

[0007] A double-core corrugated paperboard structure comprises a bottom layer, and a compression-resistant mechanism is arranged above the bottom layer;

[0008] The pressure-resistant mechanism includes a first corrugated core, which is fixed at the top of the bottom layer, and a second corrugated core is arranged on one side of the first corrugated core, a load-reducing cavity is opened inside the first corrugated core and the second corrugated core, and longitudinal reinforcing ribs are penetrated at the top and bottom ends of the first corrugated core and the second corrugated core, and transverse reinforcing ribs are arranged on one side of the longitudinal reinforcing ribs, and corrugated units are arranged on the inner walls of the first corrugated core and the second corrugated core, and a bearing unit is fixed inside the corrugated unit.

[0009] By adopting the above technical solution, the first corrugated core and the second corrugated core are staggered and laminated, so as to improve the bearing strength and impact resistance of the corrugated board.

[0010] Optionally, the transverse reinforcing ribs penetrate into the interior of the first corrugated core and the second corrugated core at the same time, and the transverse reinforcing ribs and the longitudinal reinforcing ribs are perpendicular to each other.

[0011] By adopting the above technical solution, the stability of the connection between the first corrugated core and the second corrugated core is improved by means of the transverse reinforcing ribs and the longitudinal reinforcing ribs, thereby avoiding displacement due to force.

[0012] Optionally, a reinforcement mechanism is provided above the compression-resistant mechanism, and the reinforcement mechanism includes a reinforcement layer, the reinforcement layer is fixed above the first corrugated core and the second corrugated core, and a through hole is opened inside the reinforcement layer.

[0013] By adopting the above technical solution, the impact resistance is further improved through the reinforcement layer, and the overall weight is reduced through the through holes.

[0014] Optionally, the reinforcement mechanism further includes a shear plate, which is fixed to the inner wall of the through hole, and a fireproof layer is arranged above the through hole inside the reinforcement layer.

[0015] By adopting the above technical solution, the shear plate can prevent the reinforcement layer from being deformed due to stress.

[0016] Optionally, a buffer mechanism is arranged above the reinforcement mechanism, and the buffer mechanism includes a fiber layer, the fiber layer is fixed on the top of the reinforcement layer, and a transverse elastic strip is arranged on the inner wall of the fiber layer, and a longitudinal elastic strip is arranged on one side of the transverse elastic strip.

[0017] By adopting the above technical solution, the heat preservation effect of the container composed of corrugated cardboard is improved through the fiber layer with heat preservation effect.

[0018] Optionally, the transverse elastic strips and the longitudinal elastic strips are perpendicular to each other, and the transverse elastic strips are bonded to the fiber layer.

[0019] By adopting the above technical solution, the transverse elastic strips and the longitudinal elastic strips can improve the impact resistance of the corrugated paperboard and can recover after being subjected to force.

[0020] Optionally, a surface layer is provided on the top of the fiber layer, and an anti-corrosion coating is placed on the top of the surface layer.

[0021] By adopting the above technical solution, the anti-corrosion coating can make the corrugated cardboard have an anti-corrosion effect, thereby improving the durability of use.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. The utility model improves the bearing strength by staggeredly laminating the first corrugated core and the second corrugated core, reduces the weight through the triangular load-reducing cavity, and improves the bearing stability at the same time, cooperates with the longitudinal reinforcement ribs and the transverse reinforcement ribs to stably connect the first corrugated core and the second corrugated core, and improves a certain buffering effect. The triangular corrugated units inside the first corrugated core and the second corrugated core improve the impact resistance, and cooperate with the elastic bearing unit to further improve the buffering effect and impact resistance.

[0024] 2. The utility model improves the impact resistance and buffering strength of the corrugated cardboard through the reinforcement layer. The reinforcement layer reduces the load and weight by opening through holes, and cooperates with the shear plate to improve the firmness of the reinforcement layer to avoid stress deformation. At the same time, the reinforcement layer is provided with a fireproof layer to have a certain flame retardant effect and improve safety.

[0025] 3. The utility model makes the corrugated cardboard have heat preservation properties through the fiber layer of glass fiber material, and has buffering properties and can recover when being punched through the longitudinal elastic strips and transverse elastic strips. The anti-corrosion coating is applied on the top surface layer to prevent corrosion and make the corrugated cardboard more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model.

[0027] Figure 2 This utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0028] Figure 3 It is a schematic structural diagram of the first corrugated core and the second corrugated core of the utility model.

[0029] Figure 4 It is a schematic diagram of the cross-sectional structure of the first corrugated core and the second corrugated core of the utility model.

[0030] Figure 5 It is a schematic diagram of the reinforcement layer structure of the utility model.

[0031] Figure 6 It is a schematic diagram of the fiber layer structure of the utility model.

[0032] Description of reference numerals:

[0033] 1. Bottom layer; 2. Compression-resistant mechanism; 201. First corrugated core; 202. Second corrugated core; 203. Load-reducing cavity; 204. Longitudinal reinforcement ribs; 205. Transverse reinforcement ribs; 206. Corrugated unit; 207. Load-bearing unit; 3. Reinforcement mechanism; 301. Reinforcement layer; 302. Through hole; 303. Shear plate; 304. Fireproof layer; 4. Buffer mechanism; 401. Fiber layer; 402. Transverse elastic strip; 403. Longitudinal elastic strip; 5. Surface layer; 6. Anti-corrosion coating. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] Please refer to Figure 1-4A double-core corrugated cardboard structure, including a double-core corrugated cardboard structure, including a bottom layer 1, and a pressure-resistant mechanism 2 is arranged above the bottom layer 1; the pressure-resistant mechanism 2 includes a first corrugated core 201, the first corrugated core 201 is fixed on the top of the bottom layer 1, a second corrugated core 202 is arranged on one side of the first corrugated core 201, and a load-reducing cavity 203 is opened inside the first corrugated core 201 and the second corrugated core 202, longitudinal reinforcing ribs 204 are penetrated at the top and bottom ends of the first corrugated core 201 and the second corrugated core 202, and a transverse reinforcing rib 205 is arranged on one side of the longitudinal reinforcing rib 204, and the inner walls of the first corrugated core 201 and the second corrugated core 202 are both provided with corrugated units 206, and a load-bearing unit 206 is fixed inside the corrugated unit 206. Element 207, the transverse reinforcing ribs 205 penetrate into the inside of the first corrugated core 201 and the second corrugated core 202 at the same time, and the transverse reinforcing ribs 205 and the longitudinal reinforcing ribs 204 are perpendicular to each other; the bearing strength is improved by staggered bonding of the first corrugated core 201 and the second corrugated core 202, and the weight is reduced while the bearing stability is improved through the triangular load-reducing cavity 203, and the longitudinal reinforcing ribs 204 and the transverse reinforcing ribs 205 are used to stably connect the first corrugated core 201 and the second corrugated core 202 while improving a certain buffering effect, the triangular corrugated units 206 inside the first corrugated core 201 and the second corrugated core 202 improve the impact resistance, and cooperate with the elastic bearing unit 207 to further improve the buffering effect and impact resistance.

[0036] Reference Figure 1 and Figure 5 A reinforcement mechanism 3 is arranged above the compression mechanism 2, and the reinforcement mechanism 3 includes a reinforcement layer 301, the reinforcement layer 301 is fixed above the first corrugated core 201 and the second corrugated core 202, a through hole 302 is opened inside the reinforcement layer 301, and the reinforcement mechanism 3 also includes a shear plate 303, the shear plate 303 is fixed on the inner wall of the through hole 302, and a fireproof layer 304 is arranged above the through hole 302 inside the reinforcement layer 301; the impact resistance and buffering strength of the corrugated board are improved by the reinforcement layer 301, the reinforcement layer 301 is reduced in weight by the through hole 302 opened, and the shear plate 303 is used to improve the firmness of the reinforcement layer 301 to avoid deformation due to stress, and at the same time, the reinforcement layer 301 is provided with a fireproof layer 304 to play a certain flame retardant effect and improve safety.

[0037] Reference Figure 1 and Figure 6A buffer mechanism 4 is arranged above the reinforcement mechanism 3, and the buffer mechanism 4 includes a fiber layer 401, and the fiber layer 401 is fixed on the top of the reinforcement layer 301. A transverse elastic strip 402 is arranged on the inner wall of the fiber layer 401, and a longitudinal elastic strip 403 is arranged on one side of the transverse elastic strip 402. The transverse elastic strip 402 and the longitudinal elastic strip 403 are perpendicular to each other, and the transverse elastic strip 402 is bonded and connected to the fiber layer 401. A surface layer 5 is arranged on the top of the fiber layer 401, and an anti-corrosion coating 6 is arranged on the top of the surface layer 5; the fiber layer 401 made of glass fiber material allows the corrugated cardboard to have heat preservation properties, and the longitudinal elastic strip 403 and the transverse elastic strip 402 have buffering properties when being stamped, and can be restored, and the anti-corrosion coating 6 is coated on the top surface layer 5 to prevent corrosion and make the corrugated cardboard more durable.

[0038] The implementation principle of the utility model is as follows: a plurality of first corrugated cores 201 and second corrugated cores 202 are interlaced and laminated above the bottom layer 1 to form an impact-resistant layer, and the impact resistance is improved by the triangular load-reducing cavity 203. The longitudinal reinforcing ribs 204 and the transverse reinforcing ribs 205 are interlaced at the top and bottom ends of the first corrugated core 201 and the second corrugated core 202 to improve the bearing capacity, and the corrugated units 206 in a triangular row are coordinated to maintain stability when subjected to force, and the impact resistance is further improved by the bearing unit 207. The reinforcement layer 301 improves the compression resistance, and the through hole 302 is used to avoid excessive weight. The shear plate 303 improves the bearing capacity of the reinforcement layer 301, and a fireproof layer 304 is provided to achieve a fireproof effect. The transverse elastic strips 402 and the longitudinal elastic strips 403 inside the glass fiber layer 401 further improve the impact resistance, and the surface layer 5 is coated with an anti-corrosion coating 6 to improve the anti-corrosion and durability of the corrugated board.

[0039] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A double-core corrugated paperboard structure, comprising a bottom layer (1), characterized in that: A pressure-resistant mechanism (2) is provided above the bottom layer (1); The pressure-resistant mechanism (2) comprises a first corrugated core (201), the first corrugated core (201) being fixed on the top of the bottom layer (1), and a second corrugated core (202) being arranged on one side of the first corrugated core (201), a load-reducing cavity (203) being provided inside the first corrugated core (201) and the second corrugated core (202), and longitudinal reinforcing ribs (204) being inserted into the top and bottom ends of the first corrugated core (201) and the second corrugated core (202), and transverse reinforcing ribs (205) being arranged on one side of the longitudinal reinforcing ribs (204), and corrugated units (206) being arranged on the inner walls of the first corrugated core (201) and the second corrugated core (202), and bearing units (207) being fixed inside the corrugated units (206).

2. A double-core corrugated paperboard structure according to claim 1, characterized in that: The transverse reinforcing ribs (205) simultaneously penetrate the interior of the first corrugated core (201) and the second corrugated core (202), and the transverse reinforcing ribs (205) and the longitudinal reinforcing ribs (204) are perpendicular to each other.

3. A double-core corrugated paperboard structure according to claim 1, characterized in that: A reinforcement mechanism (3) is arranged above the compression-resistant mechanism (2), the reinforcement mechanism (3) comprising a reinforcement layer (301), the reinforcement layer (301) being fixed above the first corrugated core (201) and the second corrugated core (202), and a through hole (302) is provided inside the reinforcement layer (301).

4. A double-core corrugated paperboard structure according to claim 3, characterized in that: The reinforcement mechanism (3) further comprises a shear plate (303), wherein the shear plate (303) is fixed to the inner wall of the through hole (302), and a fireproof layer (304) is provided above the through hole (302) inside the reinforcement layer (301).

5. A double-core corrugated paperboard structure according to claim 3, characterized in that: A buffer mechanism (4) is arranged above the reinforcement mechanism (3), the buffer mechanism (4) comprising a fiber layer (401), the fiber layer (401) being fixed to the top of the reinforcement layer (301), and a transverse elastic strip (402) being arranged on the inner wall of the fiber layer (401), and a longitudinal elastic strip (403) being arranged on one side of the transverse elastic strip (402).

6. A double-core corrugated paperboard structure according to claim 5, characterized in that: The transverse elastic strip (402) and the longitudinal elastic strip (403) are perpendicular to each other, and the transverse elastic strip (402) is bonded and connected to the fiber layer (401).

7. A double-core corrugated paperboard structure according to claim 5, characterized in that: A surface layer (5) is provided on the top of the fiber layer (401), and an anti-corrosion coating (6) is placed on the top of the surface layer (5).

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