High-compression-resistance paperboard and extruded sheet combined packaging box

Abstract

A high-compression-resistance paperboard and extruded sheet combined packaging box comprises a box body formed by splicing and combining a paperboard and two extruded sheets, and the two extruded sheets are arranged on the two sides of the box body respectively and used as two side plates of the box body. The two ends of the paper board surround and wrap the edges of the peripheries of the two extruded boards respectively to form a front board, a bottom board and a rear board of the box body, and the paper board serving as the front board, the bottom board and the rear board of the box body is fixedly connected with the two extruded boards. A packaging cavity used for placing articles is formed in a space defined by the paper boards and the two extruded boards, and a box body opening communicated with the packaging cavity is reserved between the paper boards serving as the front board and the rear board of the box body. Compared with a traditional corrugated board packaging box, the corrugated board packaging box has higher compressive strength, and goods can be effectively prevented from being damaged due to extrusion deformation in the transportation and stacking process.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, and in particular to a high-compression-resistant cardboard extruded board combined packaging box. Background Technology

[0002] Currently, traditional three-layer, five-layer, and seven-layer corrugated cardboard boxes, widely used in the express delivery industry, dominate the packaging market due to their low cost, light weight, and ease of processing. However, with the rapid development of the logistics industry, the volume of freight transportation has increased significantly, and the transportation environment has become increasingly complex. The shortcomings of traditional three-layer, five-layer, and seven-layer corrugated cardboard boxes have gradually become apparent. Their edge crush strength is usually between 6 and 18 kPa, indicating low compressive strength. During long-distance transportation, goods undergo multiple handling, loading and unloading, and transfers between different modes of transport, during which they are subjected to various forms of compression, collisions, and impacts. Once the external force on the packaging box exceeds its compressive strength, it is easily deformed, resulting in damage to the internal goods. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a high-compression cardboard extruded board combination packaging box that has higher compressive strength than traditional three-layer, five-layer or seven-layer corrugated cardboard boxes and can effectively prevent goods from being damaged by compression and deformation during transportation and stacking.

[0004] The technical problem to be solved by this utility model is achieved through the following technical solution. This utility model is a high-compression-resistant cardboard and extruded polystyrene board combination packaging box, including a box body composed of a cardboard and two extruded polystyrene boards spliced ​​together. The two extruded polystyrene boards are respectively arranged on both sides of the box body to serve as two side panels of the box body. The two ends of the cardboard are respectively wrapped around the edges of the two extruded polystyrene boards to form the front panel, bottom panel, and rear panel of the box body. The cardboard serving as the front panel, bottom panel, and rear panel of the box body is connected to the two extruded polystyrene boards by a fixed connection. The space enclosed by the cardboard and the two extruded polystyrene boards constitutes a packaging cavity for placing items. An opening in the box body communicating with the packaging cavity is left between the cardboard serving as the front panel and rear panel of the box body.

[0005] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the high compression-resistant cardboard extruded board combined packaging box described above, the ends of the cardboard as the front panel of the box and / or the cardboard as the rear panel of the box are further extended outward to form an extension portion, which is used to seal the opening of the box to form the upper flap of the box.

[0006] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the high compression-resistant cardboard extruded board combined packaging box described above, the upper flap of the box body is connected to the cardboard and two extruded boards by means of adhesive tape.

[0007] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the high compression resistant cardboard extruded board combination packaging box described above, the cardboard of the front board, bottom board and back board of the box body and the two extruded boards are connected by a fixed connection method of adhesive, nailing or tape.

[0008] The technical problem to be solved by this utility model can also be further achieved through the following technical solutions: for the high compression-resistant cardboard extruded board combination packaging box mentioned above, the cardboard is corrugated cardboard, kraft paperboard, cardboard or grey board paperboard.

[0009] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the high compression-resistant cardboard extruded board combination packaging box mentioned above, the cardboard is rectangular in shape.

[0010] The technical problem to be solved by this utility model can also be further achieved through the following technical solutions: For the high compression-resistant cardboard extruded board combination packaging box mentioned above, both extruded boards are rectangular, triangular, pentagonal, hexagonal or circular in shape.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The edge crush strength of existing three-layer, five-layer, and seven-layer corrugated cardboard used for express delivery packaging boxes is between 6 and 18 kPa, while the compressive strength of the extruded polystyrene board in this application is usually between 200 and 1800 kPa, which is 10 to 100 times that of the cardboard. Using extruded polystyrene board as the side panel of the box provides excellent support, significantly improves the compressive strength of the packaging box, and reduces the loss of goods caused by compression deformation during transportation and stacking.

[0013] 2. This application uses a combination of cardboard and extruded board, eliminating the need for complex cutting of the top and bottom flaps and the tongue (adhesive edge), thus avoiding the waste of some cardboard area and reducing cardboard usage by approximately 30% to 50%, which is energy-saving and environmentally friendly.

[0014] 3. This application utilizes cardboard to surround extruded polystyrene board, with the front, bottom, and rear panels of the box being a single piece, eliminating the seams of the bottom flap. This is particularly suitable for packaging needs that are prone to moisture, such as transporting flowers, fruits, vegetables, and frozen foods. It avoids the risk of leakage caused by the softening of the seams at the joints of existing cardboard due to moisture. At the same time, the excellent waterproof and heat-insulating properties of the side extruded polystyrene board further enhance the safety of storing the aforementioned items. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is another structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of a structure of the present utility model with a hinged cover;

[0018] Figure 4 This is a schematic diagram of another structure of the present invention with a hinged cover. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Reference Figure 1-4 A high-compression-strength cardboard and extruded polystyrene board combination packaging box is an innovative packaging solution that cleverly combines cardboard 1 and extruded polystyrene board 2, giving full play to the advantages of the two materials to achieve high compression resistance and good packaging function. The box body is mainly composed of one piece of cardboard 1 and two pieces of extruded polystyrene board 2 spliced ​​together. This combination method not only ensures the structural strength of the packaging box, but also has certain cost-effectiveness and processing convenience. At the same time, the extruded polystyrene board is made from 100% post-consumer recycled EPS foam material, which can be easily peeled off from the cardboard layer for recycling. After recycling, it can continue to produce extruded polystyrene board, which complies with the GB / T 18455-2010 packaging recycling mark standard.

[0021] Specifically:

[0022] Two extruded polystyrene (XPS) boards 2 are respectively placed on both sides of the box body, serving as the two side panels of the box body. The two ends of the cardboard 1 are wrapped around the edges of the two XPS boards 2 to form the front panel 3, bottom panel 4, and rear panel 5 of the box body, which together constitute one of the main support structures of the packaging box. Together with the XPS boards 2, they provide a stable storage space for the internal items. XPS boards 2 have excellent compressive strength and are usually made of materials such as polystyrene resin. The internal closed-cell honeycomb structure can effectively prevent air flow, thereby avoiding heat conduction, and can also withstand large external forces without significant deformation. In the packaging box, XPS boards 2, as side panels, can significantly improve the overall compressive strength of the box body and protect the internal items from compression damage during transportation and storage.

[0023] The space enclosed by the cardboard 1 and two extruded boards 2 forms a packaging cavity 6 for placing items. Its size and shape are designed according to the size and shape of the packaged goods to ensure that the goods can be placed tightly and stably inside, reducing shaking and collision during transportation. An opening 7 for the box body, which communicates with the packaging cavity 6, is left between the cardboard 1, which serves as the front panel 3 and the rear panel 5 of the box body, to facilitate the loading and unloading of goods by the operators.

[0024] To ensure the reliability of the connection between cardboard 1 and extruded polystyrene board 2, the cardboard 1, which serves as the front panel 3, bottom panel 4, and rear panel 5 of the box, is fixedly connected to the two extruded polystyrene boards 2 at all joints. Preferably, the cardboard 1, which serves as the front panel 3, bottom panel 4, and rear panel 5 of the box, is fixedly connected to the two extruded polystyrene boards 2 using adhesive bonding, nailing, or tape bonding. Adhesive bonding is suitable for situations where the sealing of the packaging box is required and frequent disassembly is not necessary. When bonding, the adhesive application width is 10-30mm. Nailing is advantageous in some packaging scenarios that require withstanding greater pressure or impact, but nails may leave marks on the surface of the packaging box, affecting its appearance. When nailing, the nail spacing is 50-300mm. Tape bonding is suitable for situations where the connection strength requirement is not particularly high and quick assembly and disassembly are required. When using tape bonding, the tape width is 20-50mm. In practical applications, the appropriate connection method can be selected according to the specific needs of the packaging box and the usage environment, or multiple connection methods can be combined to ensure the quality and performance of the packaging box.

[0025] In actual use, the ends of the cardboard 1 serving as the front panel 3 and / or the cardboard 1 serving as the rear panel 5 of the box extend outward to form an extension. The extension is used to seal the box opening 7 to form the upper flap 8 of the box. The upper flap 8 is an important component of the packaging box, playing a crucial protective role when the packaging box is closed. When the upper flap 8 is lowered and seals the box opening 7, it can effectively prevent goods from falling out of the box during transportation, and also reduce the intrusion of external dust, moisture, etc., into the goods, ensuring the quality and safety of the goods. Preferably, the upper flap 8 of the box is connected to the cardboard 1 and the two extruded boards 2 by tape bonding. Tape bonding is a simple, quick, and low-cost connection method. It can provide sufficient adhesive force to ensure that the upper flap 8 remains sealed during transportation and storage, and is not easy to loosen or fall off.

[0026] The cardboard 1 is corrugated cardboard, kraft paperboard, cardboard, or grey board paperboard, and can be rotated according to actual use needs. Preferably, the cardboard 1 is corrugated cardboard, which has significantly better compressive strength than kraft paper, cardboard, and grey board paperboard. Specifically, the cardboard 1 can be three-layer, five-layer, or seven-layer corrugated cardboard. Three-layer corrugated paper: edge crush strength is usually between 6000 and 8000 N / m, which is about 6 to 8 kPa; five-layer corrugated paper: edge crush strength is generally around 9000 to 12000 N / m, which is 9 to 12 kPa; seven-layer corrugated paper: edge crush strength is about 12000 to 18000 N / m, which is equivalent to 12 to 18 kPa.

[0027] The cardboard 1 is rectangular in shape. This regular shape facilitates standardized production and processing, and also makes it easy to stack and place during warehousing and transportation, which can make full use of space and improve logistics efficiency.

[0028] Both extruded polystyrene (XPS) boards 2 are rectangular, triangular, pentagonal, hexagonal, or circular in shape. Different shapes of XPS boards 2 provide greater flexibility and adaptability for packaging box design. Rectangular XPS boards 2 are relatively simple to process and have lower costs. Their combination with cardboard 1 is also quite conventional, meeting the packaging needs of most common goods. Their regular shape facilitates mass production and standardized assembly. Triangular XPS boards 2 have unique advantages in specific situations. For example, when the packaging box needs to withstand greater pressure in a certain direction, the triangular structure provides more stable support, enhancing the box's pressure resistance in that direction. Pentagonal XPS boards 2 can form more complex support structures. Through the interaction of multiple sides and corners, they further improve the overall stability of the packaging box, making them suitable for special goods requiring high packaging stability. Circular XPS boards 2 are valuable in scenarios where the appearance of the packaging box has special requirements or needs to adapt to the packaging of goods with special shapes. For example, when packaging round or curved items, circular XPS boards 2 can better conform to the shape of the item, providing tighter protection.

[0029] Of course, in actual use, the extruded board 2 can also be designed into other shapes, such as ellipse, polygon, or other regular or irregular shapes, as long as it meets the actual use needs.

[0030] The two extruded polystyrene boards 2 basically determine the overall shape of the box. Therefore, in actual applications, they can also be designed into other shapes, such as trapezoids, pentagons, etc., as long as they can meet the actual usage requirements.

[0031] The assembly process of this packaging box is as follows:

[0032] First, check that a three-, five-, or seven-layer corrugated cardboard 1 and two extruded polystyrene boards 2 (shape as needed, such as rectangular) are intact, confirming there are no damages, cracks, or other problems. Also, prepare the necessary tools for joining. If bonding is used, prepare adhesive. Types of adhesives that can be used include: Modified all-purpose adhesive, white glue, hot melt adhesive, epoxy resin adhesive, polyurethane adhesive (solvent-free), acrylic adhesive, pressure-sensitive tape / spray adhesive, and contact adhesive are all acceptable. Hot melt adhesive is preferred due to its fast curing speed, which facilitates mass production. If nailing is used, a nail gun and nails are prepared, preferably plastic screws for easy recycling of packaging materials after use. If tape is used, tape and scissors are prepared. Next, place two extruded polystyrene boards 2 flat on the workbench. After determining their positions, wrap one end of cardboard 1 around the edge of one extruded polystyrene board 2, and fix it in time according to the selected connection method (adhesive, nailing, or tape). After wrapping one extruded polystyrene board 2, continue to wrap the other extruded polystyrene board 2 to form the front panel 3, bottom panel 4, and rear panel 5 of the box. After that, thoroughly check the connection between cardboard 1 and extruded polystyrene board 2, and reinforce any loose parts. Finally, if there is a top flap 8 design, tidy up the extension of the cardboard 1 end for later use.

[0033] In summary, this high-compression-strength cardboard extruded board combination packaging box, through its unique structural design, reasonable material selection, and diverse connection methods, achieves high compression resistance, good sealing performance, and convenient usability, meeting the packaging needs of different goods and showing broad application prospects in the logistics transportation and warehousing fields.

Claims

1. A high-compression-resistant cardboard extruded board combined packaging box, characterized in that: The box consists of a cardboard box and two extruded polystyrene (XPS) boards. The two XPS boards are placed on both sides of the box and serve as the two side panels. The two ends of the cardboard box are wrapped around the edges of the two XPS boards to form the front, bottom, and back panels of the box. The cardboard box, which serves as the front, bottom, and back panels, is fixedly connected to the two XPS boards. The space enclosed by the cardboard box and the two XPS boards forms a packaging cavity for placing items. An opening in the box that communicates with the packaging cavity is left between the cardboard box, which serves as the front and back panels.

2. The high-compression-resistant cardboard extruded board combination packaging box according to claim 1, characterized in that: The ends of the cardboard serving as the front panel and / or the cardboard serving as the rear panel of the box extend outward to form an extension, which is used to seal the opening of the box to form the top flap of the box.

3. The high-compression-resistant cardboard extruded board combination packaging box according to claim 2, characterized in that: The top cover of the box is connected to the cardboard and two extruded polystyrene boards by adhesive tape.

4. The high-compression-resistant cardboard extruded board combination packaging box according to claim 1, characterized in that: The cardboard panels of the front, bottom, and rear panels of the box are all connected to the two extruded polystyrene boards by adhesive, nailing, or tape.

5. The high-compression-resistant cardboard extruded board combination packaging box according to claim 1, characterized in that: The cardboard is corrugated cardboard, kraft paperboard, cardboard, or grey board.

6. The high-compression-resistant cardboard extruded board combination packaging box according to claim 1, characterized in that: The cardboard is rectangular in shape.

7. The high-compression-resistant cardboard extruded board combination packaging box according to claim 1, characterized in that: Both extruded polystyrene boards are rectangular, triangular, pentagonal, hexagonal, or circular in shape.

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