A kind of edge protector integrated corrugated paperboard structure

Abstract

The utility model relates to packing material technical field especially is a kind of edge angle protector integration corrugated paperboard structure, including protective structure and paperboard body, protective structure includes protective frame, the bottom of protective frame inboard is fixedly installed with rectangular frame, to paperboard body has played supporting and positioning effect, paperboard body cover is set in rectangular frame top, first boss is inserted from the bottom of slot, strengthens connection, then the connecting strip is pasted in the periphery of paperboard body top, the second boss of first surface layer bottom passes through the through slot on connecting strip, then inserts into the inside of slot, and connecting structure is tightly firm, prevent falling off, the both ends of paperboard body are respectively bonded with first surface layer and second surface layer, strengthen connection structure intensity and to paperboard body has played the protective effect, prolongs its service life.

Description

Technical Field

[0001] This utility model relates to the field of packaging materials technology, specifically to an integrated corrugated cardboard structure with edge and corner protection. Background Technology

[0002] In the packaging industry, corrugated cardboard is widely used in the packaging of various products due to its lightweight, low cost, high strength and environmental friendliness.

[0003] However, the existing technology has the following drawbacks:

[0004] However, the edges of traditional corrugated cardboard are relatively fragile during the packaging process, and are easily damaged by collisions and squeezing during transportation and handling, which affects the overall strength of the packaging and the protection of the products inside. The stability of the connection between the additional corner protectors and the corrugated cardboard also needs to be improved, and corner protectors may fall off in actual use. Utility Model Content

[0005] The purpose of this utility model is to provide an integrated corrugated cardboard structure with edge and corner protection to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated corrugated cardboard structure with edge and corner protection, comprising a protective structure and a cardboard body. The protective structure includes a protective frame, a rectangular frame is fixedly installed on the top of the inner side of the protective frame, the cardboard body is mounted on the top of the rectangular frame and the two are glued and fixed together, connecting strips are fixedly installed on the top of the four inner walls of the protective frame, and a first surface layer and a second surface layer are glued to both ends of the cardboard body, with the connecting strips sandwiched between the first surface layer and the cardboard body.

[0007] The above technical solution features an integrated protective structure design that is easy to install. The protective structure is bonded and fixed to the cardboard body with a high-strength adhesive to prevent it from falling off. The first and second surface layers provide protection for the cardboard body.

[0008] The top of the four sides of the rectangular frame is evenly provided with several first protrusions, and several slots are evenly opened around the four sides of the cardboard body. The inner wall of the slots is evenly coated with glue. The first protrusions are engaged and installed at the bottom of the inner side of the slots. Both ends of the rectangular frame are coated with glue.

[0009] By adopting the above technical solution, the protective frame and the cardboard body are connected by the first protrusion and the slot, which strengthens the connection structure between the two, makes them tighter, and prevents them from falling off.

[0010] The connecting strip is made of transparent PVC material and is connected to the protective frame by paper hinges. Several through slots are evenly opened on the connecting strip. The bottom of the connecting strip is glued to the top of the cardboard body around the perimeter, and the through slots are located directly above the card slots. The dimensions of the cardboard body are the same as the dimensions of the rectangular frame.

[0011] Using the above technical solution, the connecting strip can be flipped, the connecting strip and the rectangular frame are located at both ends of the cardboard body, the through groove and the card slot are in corresponding positions and the two are the same size.

[0012] Several second protrusions are evenly arranged around the bottom of the first surface layer. The bottom of the first surface layer and the outer walls of the second protrusions are evenly coated with glue. The first surface layer covers the top of the cardboard body. The second protrusions are inserted and installed on the top of the slot through the through groove.

[0013] Using the above technical solution, the first and second surface layers are also bonded to the corrugated core layer and the reinforcing corrugated unit with adhesive, ensuring the stability of the entire corrugated board structure.

[0014] The first surface layer has the same dimensions as the cardboard body. The sum of the heights of the second and first protrusions is equal to the depth of the slot. The sidewalls of the second and first protrusions are bonded to the inner wall of the slot. The top of the first protrusion and the bottom of the second protrusion are bonded together.

[0015] By adopting the above technical solution, the first and second protrusions are adapted to and tightly connected with the card slot, which enhances the connection strength between the protective structure and the cardboard body and extends its service life.

[0016] The bottom of the protective frame is flat and the top is an inclined plane with an inner bottom and an outer height. The cross-sectional shape of the protective frame is a right trapezoid, and the four outer corners are rounded. The outer edges of the protective frame are all rounded.

[0017] By adopting the above technical solution, the rounded corner design can not only prevent the edges from scratching the operators during handling, but also further reduce stress concentration at the edges and improve the impact resistance of the edges.

[0018] The protective frame is made by stacking and bonding multiple layers of reinforced corrugated paper units. The lower half of the protective frame is composed of multiple layers of horizontal corrugated structure, and the upper half of the protective frame is composed of multiple layers of vertical corrugated structure. The top height of the multiple layers of vertical corrugated structure decreases in a stepped manner. The surfaces of the first and second layers are covered with a protective film.

[0019] By adopting the above technical solution, the corrugated structure design in different directions within the protective frame can enhance the corner protectors' resistance to compression and bending in multiple directions.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This utility model features an integrated edge and corner protection structure that is tightly integrated with corrugated cardboard. Compared to the traditional method of adding corner protectors separately, it can more effectively enhance the strength and impact resistance of the edge parts, reduce the risk of edge damage, and better protect the inner packaged products. The multi-layer reinforcement design and special connection method, as well as the rounded corners and waterproof and wear-resistant treatment of the edges, further improve the stability and durability of the corrugated cardboard structure, extend the service life of the packaging, and enhance the safety and reliability of the packaging. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall exploded structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the protective structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the cardboard body structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the first layer structure of this utility model;

[0026] Figure 5 This is a cross-sectional view of the protective structure of this utility model.

[0027] In the diagram: 1. Protective structure; 2. Cardboard body; 3. First surface layer; 4. Card slot; 5. Connecting strip; 6. Through slot; 7. Rectangular frame; 8. Second surface layer; 9. Protective frame; 10. First protrusion; 11. Second protrusion; 12. Horizontal corrugated structure; 13. Vertical corrugated structure. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5This utility model provides an integrated corrugated cardboard structure with edge and corner protection, including a protective structure 1 and a cardboard body 2. The protective structure 1 includes a protective frame 9, and a rectangular frame 7 is fixedly installed on the top of the inner side of the protective frame 9. The cardboard body 2 is mounted on the top of the rectangular frame 7 and the two are glued and fixed. Connecting strips 5 are fixedly installed on the top of the four inner walls of the protective frame 9. The two ends of the cardboard body 2 are respectively glued with a first surface layer 3 and a second surface layer 8, and the connecting strips 5 are sandwiched between the first surface layer 3 and the cardboard body 2. The protective structure 1 is a rectangular frame structure.

[0030] The top of the four sides of the rectangular frame 7 is evenly provided with several first protrusions 10, and the cardboard body 2 is evenly provided with several slots 4 around its perimeter. The inner wall of the slots 4 is evenly coated with glue. The first protrusions 10 are engaged and installed at the bottom of the inner side of the slots 4. Both ends of the rectangular frame 7 are coated with glue. The positions of the slots 4 and the first protrusions 10 are correspondingly set.

[0031] The connecting strip 5 is made of transparent PVC material and is connected to the protective frame 9 by paper hinges. Several through slots 6 are evenly opened on the connecting strip 5. The bottom of the connecting strip 5 is glued to the top of the cardboard body 2 around the perimeter, and the through slots 6 are located directly above the slots 4. The size of the cardboard body 2 is the same as that of the rectangular frame 7. The connecting strip 5 can be flipped.

[0032] Several second protrusions 11 are evenly arranged around the bottom of the first surface layer 3. The bottom of the first surface layer 3 and the outer wall of the second protrusions 11 are evenly coated with glue. The first surface layer 3 covers the top of the cardboard body 2. The second protrusions 11 pass through the through groove 6 and are engaged and installed on the top of the slot 4. The dimensions of the first surface layer 3 and the second surface layer 8 are the same as the dimensions of the cardboard body 2.

[0033] The dimensions of the first surface layer 3 are the same as those of the cardboard body 2. The sum of the heights of the second protrusion 11 and the first protrusion 10 is equal to the depth of the slot 4. The sidewalls of the second protrusion 11 and the first protrusion 10 are both bonded to the inner wall of the slot 4. The top of the first protrusion 10 and the bottom of the second protrusion 11 are bonded together. The first protrusion 10 and the second protrusion 11 are inserted from both ends of the slot 4 respectively.

[0034] The bottom of the protective frame 9 is flat and the top is a sloping surface with an inner bottom and an outer height. The cross-sectional shape of the protective frame 9 is a right trapezoid, and the four corners on its outer side are rounded. The outer edges of the protective frame 9 are all rounded and chamfered. The right-angled edges of the protective frame 9 are in close contact with the side of the cardboard body 2.

[0035] The protective frame 9 is made by superimposing and bonding multiple layers of reinforced corrugated paper units. The lower half of the protective frame 9 consists of multiple layers of horizontal corrugated structure 12, and the upper half consists of multiple layers of vertical corrugated structure 13. The top height of the multiple layers of vertical corrugated structure 13 decreases in a stepped manner. The surfaces of the first layer 3 and the second layer 8 are covered with a protective film. The outer surface of the protective frame 9 is coated with a waterproof and wear-resistant coating.

[0036] Working principle: When using this utility model, the cardboard body 2 is placed on the conveyor belt, and high-strength adhesive is evenly applied to its four edges by the glue roller. The connecting strip 5 is lifted, and then the cardboard body 2 is placed into the interior of the protective frame 9 from above. The first protrusion 10 is inserted from the bottom of the slot 4. The connecting strip 5 is covered and pressed down to make the rectangular frame 7, the cardboard body 2 and the connecting strip 5 tightly bonded. Then, the first surface layer 3 and the second surface layer 8 are respectively attached to the top and bottom of the cardboard body 2, and the second protrusion 11 is inserted from the top of the slot 4 to complete the installation connection between the protective frame 9 and the cardboard body 2.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated corrugated cardboard structure with edge and corner protection, comprising a protective structure (1) and a cardboard body (2), characterized in that: The protective structure (1) includes a protective frame (9), a rectangular frame (7) is fixedly installed on the top of the inner side of the protective frame (9), the cardboard body (2) is mounted on the top of the rectangular frame (7) and the two are glued and fixed, and connecting strips (5) are fixedly installed on the top of the four inner walls of the protective frame (9). The two ends of the cardboard body (2) are respectively glued with a first surface layer (3) and a second surface layer (8), and the connecting strips (5) are sandwiched between the first surface layer (3) and the cardboard body (2).

2. The integrated corrugated cardboard structure with edge and corner protection according to claim 1, characterized in that: The top of the four sides of the rectangular frame (7) is provided with a number of first protrusions (10), and the cardboard body (2) is provided with a number of slots (4) around its perimeter. The inner wall of the slots (4) is uniformly coated with glue. The first protrusions (10) are engaged and installed at the bottom of the inner side of the slots (4). Both ends of the rectangular frame (7) are coated with glue.

3. The integrated corrugated cardboard structure with edge and corner protection according to claim 1, characterized in that: The connecting strip (5) is made of transparent PVC material and is connected to the protective frame (9) by paper hinges. Several through slots (6) are evenly opened on the connecting strip (5). The bottom of the connecting strip (5) is glued to the top of the cardboard body (2) around the perimeter. The through slots (6) are located directly above the card slots (4). The size of the cardboard body (2) is the same as that of the rectangular frame (7).

4. The integrated corrugated cardboard structure with edge and corner protection according to claim 1, characterized in that: A plurality of second protrusions (11) are evenly provided around the bottom of the first surface layer (3). The bottom of the first surface layer (3) and the outer walls of the second protrusions (11) are evenly coated with glue. The first surface layer (3) covers the top of the cardboard body (2). The second protrusions (11) pass through the through groove (6) and are engaged and installed on the top of the slot (4).

5. The integrated corrugated cardboard structure with edge and corner protection according to claim 4, characterized in that: The first surface layer (3) has the same dimensions as the cardboard body (2). The sum of the height of the second protrusion (11) and the height of the first protrusion (10) is equal to the depth of the slot (4). The sidewalls of the second protrusion (11) and the sidewalls of the first protrusion (10) are bonded to the inner wall of the slot (4). The top of the first protrusion (10) and the bottom of the second protrusion (11) are bonded together.

6. The integrated corrugated cardboard structure with edge and corner protection according to claim 1, characterized in that: The bottom of the protective frame (9) is a flat surface and its top is an inclined surface with an inner bottom and an outer height. The cross-sectional shape of the protective frame (9) is a right trapezoid, and the four corners on its outer side are rounded. The outer edges of the protective frame (9) are all rounded.

7. The integrated corrugated cardboard structure with edge and corner protection according to claim 1, characterized in that: The protective frame (9) is made by superimposing and bonding multiple layers of reinforced corrugated paper units. The lower half of the protective frame (9) is composed of multiple layers of horizontal corrugated structures (12) and the upper half of the protective frame (9) is composed of multiple layers of vertical corrugated structures (13). The top height of the multiple layers of vertical corrugated structures (13) decreases in a stepped manner. The surfaces of the first surface layer (3) and the second surface layer (8) are both covered with a protective film.

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