Environment-friendly high-strength wear-resistant corrugated carton

Abstract

The utility model relates to the technical field of corrugated cartons, and discloses an environment-friendly high-strength wear-resistant corrugated carton, which comprises a folding carton, a partition plate and a bottom reinforcing component, the bottom reinforcing component is arranged between the partition plate and the folding carton, the bottom reinforcing component comprises a folding bottom plate, and the folding bottom plate is arranged on the partition plate. The outer diameter of the folding bottom plate is equal to the inner diameter of the folding carton, and the folding carton is made of composite reinforced corrugated boards. The folding type bottom plate is additionally arranged between the partition plate and the folding type carton, effective reinforcement of bottom supporting of the folding type carton is achieved, the bending strength of the four corners of the folding type carton is enhanced by arranging the four corner plates, the four corner plates are effectively connected with the folding type bottom plate, and the supporting capacity of the folding type bottom plate for internal goods is further improved; and meanwhile, the composite reinforced corrugated board with bidirectional bending resistance is formed by the wave-shaped interlayer paperboard and the core paper, so that the anti-deformation performance of the carton is improved.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box technology, and more specifically to an environmentally friendly, high-strength, wear-resistant corrugated cardboard box. Background Technology

[0002] Corrugated cardboard boxes are the mainstream transport packaging containers, accounting for over 60% of e-commerce logistics, but they still have significant deficiencies in strength, wear resistance, and environmental friendliness.

[0003] A search revealed a Chinese patent with publication number CN221068884U, which discloses an environmentally friendly, high-strength, wear-resistant corrugated cardboard box. The box uses four sets of side panels with reinforcing plates to strengthen the sides of the overall cardboard body. However, it still has the following drawbacks: simply increasing the number of cardboard layers to resist bending is not only costly but also ineffective. Furthermore, when the box is filled with goods, the bottom is stressed. The bottom of a folding cardboard box is usually fixed by folding the four side panels and then sealing them with transparent tape, which limits its support capacity. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides an environmentally friendly, high-strength, wear-resistant corrugated cardboard box to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: an environmentally friendly, high-strength, wear-resistant corrugated cardboard box, comprising a folding cardboard box, a partition board, and a bottom reinforcement component. The bottom reinforcement component is disposed between the partition board and the folding cardboard box. The bottom reinforcement component includes a folding bottom plate, the outer diameter of which is equal to the inner diameter of the folding cardboard box.

[0006] The folding carton is made of composite reinforced corrugated cardboard, including at least two layers of corrugated interlayer cardboard that provide longitudinal bending resistance, with a core paperboard that provides transverse bending resistance bonded between the two corrugated interlayer cardboard layers, an outer cardboard bonded to one side of one of the corrugated interlayer cardboard layers, and an inner cardboard bonded to one side of the other corrugated interlayer cardboard layer.

[0007] The outer surface of the outer cardboard is covered with a bio-based wear-resistant coating, which is composed of a starch-based polymer and nano-silica.

[0008] As a further embodiment of this utility model, the bottom reinforcement component also includes corner plates installed at the four corners of the foldable base plate. The bottom of the corner plate is integrally formed with a pressure plate, and the four corners of the foldable base plate are provided with clearance grooves that cooperate with the pressure plate.

[0009] As a further embodiment of this utility model, the bottom of the partition plate is provided with an upper connecting groove, and the four sides of the foldable base plate are provided with a plurality of lower connecting grooves that cooperate with the upper connecting groove.

[0010] As a further embodiment of this utility model, the upper and lower surfaces of the core paper are molded with uniformly distributed arc-shaped ribs.

[0011] As a further embodiment of this utility model, the upper and lower surfaces of the core paper are provided with arc-shaped elastic strips at positions corresponding to the arc-shaped ribs.

[0012] As a further embodiment of this invention, the arc-shaped elastic strip is preferably made of polyurethane foam.

[0013] As a further embodiment of this invention, the inner wall of the inner cardboard is coated with an antibacterial and moisture-proof layer.

[0014] As a further embodiment of this invention, the antibacterial and moisture-proof layer is composed of bamboo pulp fibers loaded with silver ions.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model effectively reinforces the bottom support of the foldable carton by adding a foldable bottom plate between the partition and the foldable carton.

[0017] 2. This utility model further enhances the bending strength of the four corners of the folding carton by setting four corner plates, and since the four corner plates are effectively connected to the folding bottom plate, the ability of the folding bottom plate to support the internal goods can be further improved.

[0018] 3. The partition plate of this utility model has an upper connecting groove at the bottom that engages with a lower connecting groove in the folded bottom plate to form a groove interlocking structure. The groove interlocking structure prevents displacement during transportation, effectively reduces the deformation and displacement of the partition plate, and avoids collision of the contents.

[0019] 4. This utility model forms a composite reinforced corrugated cardboard with bidirectional bending resistance by using corrugated sandwich cardboard and core paper. The longitudinal corrugated sandwich cardboard provides compressive strength (to prevent collapse when stacked), and the transverse core paper enhances bending stiffness (to prevent deformation).

[0020] 5. This utility model covers the outer surface of the outer cardboard with a bio-based wear-resistant coating, which is not only wear-resistant and not easy to peel off, but also biodegradable.

[0021] 6. This utility model has an antibacterial and moisture-proof layer sprayed on the inner wall of the inner cardboard, which not only has broad-spectrum antibacterial and moisture-proof properties, but also has no heavy metal residues in the bamboo pulp fiber substrate and causes no pollution after degradation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the folding cardboard box structure of this utility model.

[0023] Figure 2This utility model Figure 1 A schematic diagram of the explosion structure.

[0024] Figure 3 This is a schematic diagram of the bottom reinforcement component structure of this utility model.

[0025] Figure 4 This is a cross-sectional view of the composite reinforced corrugated cardboard of this utility model.

[0026] Figure 5 This is a schematic diagram of the core paper structure of this utility model.

[0027] The attached diagram is labeled as follows: 1. Folding carton; 2. Divider; 3. Bottom reinforcement component; 101. Outer cardboard; 102. Corrugated sandwich cardboard; 103. Core paper; 104. Inner cardboard; 105. Bio-based wear-resistant coating; 106. Antibacterial and moisture-proof layer; 107. Arc-shaped ribs; 108. Arc-shaped elastic strip.

[0028] 201. Upper connecting slot;

[0029] 301. Angle plate; 302. Pressure plate; 303. Folding base plate; 304. Lower connecting groove; 305. Alignment groove. Detailed Implementation

[0030] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] Reference Figures 1-5 This utility model provides an environmentally friendly, high-strength, wear-resistant corrugated cardboard box, including a folding cardboard box 1, a partition board 2, and a bottom reinforcement component 3;

[0032] The bottom reinforcement component 3 is located between the partition plate 2 and the folding carton 1. The bottom reinforcement component 3 includes a folding bottom plate 303, the outer diameter of which is equal to the inner diameter of the folding carton 1.

[0033] Specifically, the folding base plate 303 can be folded on all four sides and inserted into the folding carton 1 to effectively support the bottom of the folding carton 1.

[0034] The divider 2 can provide separation and protection for goods stored in the foldable cardboard box 1.

[0035] The folding carton 1 is made of composite reinforced corrugated cardboard, including at least two layers of corrugated interlayer cardboard 102 that provide longitudinal bending resistance, and a core paper 103 that provides transverse bending resistance is bonded between the two layers of corrugated interlayer cardboard 102. An outer cardboard 101 is bonded to one side of one corrugated interlayer cardboard 102, and an inner cardboard 104 is bonded to one side of the other corrugated interlayer cardboard 102.

[0036] The bottom reinforcement component 3 also includes corner plates 301 installed at the four corners of the foldable base plate 303. The bottom of the corner plate 301 is integrally formed with a pressure plate 302. The four corners of the foldable base plate 303 are provided with clearance grooves 305 that cooperate with the pressure plate 302. The bottom of the partition plate 2 is provided with an upper connecting groove 201. The four sides of the foldable base plate 303 are provided with multiple lower connecting grooves 304 that cooperate with the upper connecting groove 201.

[0037] The corner plate 301 and the pressure plate 302 are made of recycled paperboard and have strong bending resistance.

[0038] Both the upper connecting groove 201 and the lower connecting groove 304 are made by cutting grooves in corrugated cardboard using a die-cutting process.

[0039] Specifically, the folding base plate 303 has a recessed groove 305 at each of the four corners after folding. When assembling the folding base plate 303, firstly, the four corner plates 301 are clamped on the inside of the four corners of the folding carton 1 and pressed tightly. Then, the folding base plate 303 is pressed down between the four corner plates 301 until the folding base plate 303 falls to the bottom of the folding carton 1, and the recessed groove 305 cooperates with and presses the pressure plate 302 set at the bottom of the four corner plates 301.

[0040] This effectively reinforces the bottom support of the folding carton 1, and further enhances the bending strength of the four corners of the folding carton 1 by setting four corner plates 301. Since the four corner plates 301 are effectively connected to the folding bottom plate 303, the support capacity of the folding bottom plate 303 for the internal goods can be further improved.

[0041] Then, the divider 2 is inserted into the folding carton 1, and the divider 2 is engaged with the lower connecting groove 304 of the folding bottom plate 303 through the upper connecting groove 201 at the bottom, forming a groove interlocking structure.

[0042] The interlocking groove structure prevents displacement during transportation, effectively reduces the deformation and displacement of the partition plate 2, and avoids collision of the contents.

[0043] The upper and lower surfaces of the core paper 103 are hot-pressed with uniformly distributed arc-shaped ribs 107. The upper and lower surfaces of the core paper 103 are provided with arc-shaped elastic strips 108 at positions corresponding to the arc-shaped ribs 107. The arc-shaped elastic strips 108 are preferably polyurethane foam.

[0044] Specifically, two layers of corrugated core paper 102 are bonded to core paper 103 with environmentally friendly adhesive, the surface of the core paper is pre-pressed with arc-shaped ribs 107 (hot-pressed), and polyurethane foam strips 108 are embedded in the grooves. The outer layer is composite with outer paperboard 101, and the inner layer is composite with inner paperboard 104.

[0045] Therefore, a composite reinforced corrugated board with bidirectional bending resistance is formed by corrugated sandwich paperboard 102 and core paper 103. The longitudinal corrugated sandwich paperboard 102 provides compressive strength (to prevent collapse when stacked), and the transverse core paper 103 enhances bending stiffness (to prevent deformation).

[0046] The outer surface of the outer cardboard 101 is covered with a bio-based wear-resistant coating 105, which is composed of starch-based polymer and nano-silica.

[0047] Specifically, starch-based polymer and nano-silica are mixed at a mass ratio of 100:40, dispersed at high speed, and then sprayed onto the outer surface of the outer cardboard 101 to a thickness of 0.1–0.3 mm, and dried and cured at 60°C.

[0048] First: Environmentally friendly, wear-resistant, and biodegradable.

[0049] Second: Strong adhesion: Thermal spraying or chemical bonding processes ensure that the coating is firmly bonded to the cardboard and is not easy to peel off.

[0050] The inner wall of the inner cardboard 104 is coated with an antibacterial and moisture-proof layer 106, which is composed of bamboo pulp fibers loaded with silver ions.

[0051] Specifically, bamboo pulp fibers are first impregnated with silver ion solution (concentration 1–5 g / L), dried at 60°C, and then the silver ion bamboo pulp fibers are mixed with water-based polyurethane adhesive and sprayed under high pressure onto the surface of the inner cardboard (104) with a coating thickness of 0.05–0.1 mm.

[0052] First: It has broad-spectrum antibacterial and moisture-absorbing properties, making it suitable for a wide range of applications.

[0053] Second: It is environmentally friendly and biodegradable. The bamboo pulp fiber substrate has no heavy metal residue and causes no pollution after degradation.

[0054] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0055] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0056] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. An environmentally friendly, high-strength, wear-resistant corrugated cardboard box, comprising a folding carton (1), a divider (2), and a bottom reinforcement assembly (3), characterized in that: The bottom reinforcement component (3) is disposed between the partition plate (2) and the folding carton (1). The bottom reinforcement component (3) includes a folding bottom plate (303), the outer diameter of which is equal to the inner diameter of the folding carton (1). The folding carton (1) is made of composite reinforced corrugated cardboard, including at least two layers of corrugated interlayer cardboard (102) that provide longitudinal bending resistance, and a core paper (103) that provides transverse bending resistance is bonded between the two layers of corrugated interlayer cardboard (102). An outer cardboard (101) is bonded to one side of one of the corrugated interlayer cardboard (102), and an inner cardboard (104) is bonded to one side of the other corrugated interlayer cardboard (102). The outer surface of the outer cardboard (101) is covered with a bio-based abrasion-resistant coating (105).

2. The environmentally friendly, high-strength, wear-resistant corrugated cardboard box according to claim 1, characterized in that: The bottom reinforcement component (3) also includes corner plates (301) installed at the four corners of the foldable base plate (303). The bottom of the corner plate (301) is integrally formed with a pressure plate (302). The four corners of the foldable base plate (303) are provided with clearance grooves (305) that cooperate with the pressure plate (302).

3. The environmentally friendly, high-strength, wear-resistant corrugated cardboard box according to claim 2, characterized in that: The bottom of the partition plate (2) is provided with an upper connecting groove (201), and the four sides of the foldable base plate (303) are provided with multiple lower connecting grooves (304) that cooperate with the upper connecting groove (201).

4. The environmentally friendly, high-strength, wear-resistant corrugated cardboard box according to claim 1, characterized in that: The upper and lower surfaces of the core paper (103) are hot-pressed with uniformly distributed arc-shaped ribs (107).

5. The environmentally friendly, high-strength, wear-resistant corrugated cardboard box according to claim 4, characterized in that: The upper and lower surfaces of the core paper (103) are provided with arc-shaped elastic strips (108) at positions corresponding to the arc-shaped ribs (107).

6. The environmentally friendly, high-strength, wear-resistant corrugated cardboard box according to claim 5, characterized in that: The arc-shaped elastic strip (108) is made of polyurethane foam.

7. The environmentally friendly, high-strength, wear-resistant corrugated cardboard box according to claim 1, characterized in that: The inner wall of the inner cardboard (104) is coated with an antibacterial and moisture-proof layer (106).

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