A pallet-integrated heavy-duty octagonal cardboard box and its manufacturing method

Abstract

This invention relates to the technical field of cardboard packaging, and more particularly to a pallet-integrated heavy-duty octagonal cardboard box and its manufacturing method, comprising a cardboard box section and a pallet section; the top of the cardboard box section is open, and the bottom is folded inward to form a snap-fit ​​square opening; the pallet section includes a paper pallet body and a locking mechanism; the locking mechanism is located at the center of the paper pallet body and is used to fold and snap into the snap-fit ​​square opening; a sealing bottom plate is laid flat on the bottom of the cardboard box section; while the sealing bottom plate flattens the locking mechanism, its four corners penetrate to the outside of the cardboard box section and are nailed to the four corners of the paper pallet body; the cardboard box section includes several wide side plates and narrow side plates, and the cardboard box section is formed by the eight sides enclosed by several wide side plates and narrow side plates. This invention realizes an integrated connection between the pallet and the cardboard box, and achieves a double connection and fixation between the two at the center and the edges, which is suitable for the storage, transportation and logistics packaging of heavy products.

Description

Technical Field

[0001] This invention relates to the technical field of cardboard packaging, and more particularly to a pallet-integrated heavy-duty octagonal cardboard box and its manufacturing method. Background Technology

[0002] Currently, heavy-duty cardboard packaging often adopts a split structure, with the cardboard box and wooden or plastic pallet being manufactured separately, and the cardboard box placed on the pallet during use.

[0003] The aforementioned split design is prone to relative displacement between the carton and pallet during transportation, resulting in unstable stacking. Existing patent publication number CN112623434A discloses a pallet-external packaging box, which includes a carton and a paper pallet placed at the bottom of the carton. The upper cardboard of the paper pallet has at least a pair of symmetrically arranged connecting parts formed by folding upwards in the transverse and / or longitudinal directions, and each connecting part is connected to at least two protruding tongues.

[0004] In the above technical solution, there is no need to use additional strapping or glue the carton and pallet together in advance. Instead, the carton is fixed by the tongue and the tongue. However, this technology can only fix the four sides of the carton. The center of the carton is not fixed. When the center of gravity inside the carton shifts, it is difficult to fix it by the four side tongues alone, and it is easy to break and separate.

[0005] Therefore, it is necessary to provide a pallet-integrated heavy-duty octagonal carton and its manufacturing method, in which the carton and pallet are combined into one unit through a double fixing mechanism during production, so as to solve the problems mentioned in the background art. Summary of the Invention

[0006] The purpose of this invention is to provide a pallet-integrated heavy-duty octagonal carton and its manufacturing method, which realizes the integrated connection of pallet and carton, and achieves double connection and fixation between the two at the middle and the edges, and is suitable for the storage, transportation and logistics packaging of heavy products.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a pallet-integrated heavy-duty octagonal cardboard box, comprising a cardboard box part and a pallet part; The top of the carton section is open, and the bottom is folded inward to form a snap-fit ​​square opening; The tray section includes a paper tray body and a locking mechanism; The locking mechanism is located at the center of the paper tray body and is used to fold and engage with the snap-fit ​​opening. The bottom of the carton section is covered with a sealing base plate; While the sealing bottom plate flattens and locks the mechanism, its four corners penetrate to the outside of the carton and are nailed together with the four corners of the paper tray body.

[0008] As a preferred embodiment of the present invention, the carton section includes a plurality of wide side plates and narrow side plates, and the carton section is formed by the enclosing of the plurality of wide side plates and narrow side plates on eight sides.

[0009] As a preferred embodiment of the present invention, the bottom of the side width plate is folded up and provided with a square rocker plate or a spliced ​​rocker plate, and the two are arranged adjacently and alternately at the bottom of several side width plates. When the cardboard box is formed by enclosing it, the snap-fit ​​square opening is formed by interlocking square rocker plates and splicing rocker plates.

[0010] As a preferred embodiment of the present invention, the locking mechanism includes a locking plate; The locking plate is divided in the center to form several locking plates, which are folded upwards and pass through the locking square opening to form a lock.

[0011] As a preferred embodiment of the present invention, the locking plate has a through opening in the center, and the card plate is formed by dividing the four corners of the through opening at equal intervals.

[0012] As a preferred embodiment of the present invention, the folded edge of the card plate is adapted to the edge of the card slot.

[0013] As a preferred embodiment of the present invention, the bottom of the side narrow plate is provided with a square through hole; The four corners of the cover plate have insert parts that extend outward, and the insert parts pass through the square through holes and extend outward, and are flush with the four corners of the paper tray body.

[0014] The present invention also provides a method for manufacturing a pallet-integrated heavy-duty octagonal cardboard box, comprising the following steps: The carton section is formed by enclosing several wide and narrow side panels, and the bottom is folded up to form a snap-fit ​​square opening. Place the pallet at the bottom of the carton and fold the locking mechanism upwards to engage it into the snap-fit ​​opening. Lay the bottom cover plate flat on the bottom of the carton to flatten the locking mechanism; The bottom cover plate extends out of the four corners of the carton and is nailed to the four corners of the paper pallet body for fixation.

[0015] As a preferred embodiment of the present invention, a connecting plate is provided at one outer end of the side wide plate or side narrow plate located at both ends of the edge. When the enclosure is completed, the connecting plate is folded, attached and overlapped to the inner side of the other side wide plate or side narrow plate, and the overlapping part is then nailed and fixed.

[0016] As a preferred embodiment of the present invention, four isosceles trapezoidal card plates are formed by dividing the four corners of the through opening at equal intervals.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention sets a locking mechanism at the center position of the carton for locking and limiting, and sets a sealing bottom plate at the four corners for fixing, which solves the problem that the existing carton lacks a center limiting, which leads to easy breakage when the center of gravity shifts, and realizes simultaneous fixing of the center and the edge, thereby improving the stability of packaging and transportation. The cover bottom plate is equipped with a flattening and locking mechanism to ensure the flatness of the bottom during loading. The four corners of the cover bottom plate are nailed together for fixation. No additional parts are required, the structure is compact and the reliability of preventing slippage is improved. Attached Figure Description

[0018] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0019] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the integrated heavy-duty octagonal cardboard box of the present invention; Figure 2 This is a schematic diagram of the unfolded plan of the octagonal cardboard box of the present invention; Figure 3 This is a schematic diagram of the unfolded plan of the sealing base plate of the present invention; Figure 4 This is a schematic diagram of the unfolded planar locking plate of the present invention; Figure 5 This is a three-dimensional schematic diagram of the bottom splicing of the carton section of the present invention; Figure 6 This is a three-dimensional schematic diagram of the locking plate of the present invention folding; In the diagram: 1. Carton section; 101. Side wide panel; 102. Side narrow panel; 103. Connecting plate; 104. Square rocker plate; 105. Splicing rocker plate; 106. Square through hole; 2. Pallet section; 3. Snap-fit ​​square opening; 4. Cover base plate; 401. Insert plate section; 5. Locking plate; 501. Clamping plate; 502. Through opening. Detailed Implementation

[0020] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0021] Please see Figure 1-6 The present invention provides a technical solution: a pallet-integrated heavy-duty octagonal cardboard box, comprising a cardboard box part 1 and a pallet part 2; The top of the carton section 1 is open, and the bottom is folded inward to form a snap-fit ​​square opening 3; Pallet section 2 includes a paper pallet body and a locking mechanism; The locking mechanism is located at the center of the paper tray body and is used to fold and engage with the snap-fit ​​square opening 3; The bottom of the carton section 1 is covered with a sealing base plate 4; While the sealing base plate 4 flattens and locks the mechanism, its four corners penetrate to the outside of the carton section 1 and are nailed together with the four corners of the paper tray body.

[0022] Specifically, the bottom of the carton section 1 is folded inward to pre-form a snap-fit ​​square opening 3. The pallet section 2 is placed below the carton section 1, and the locking mechanism is aligned with the snap-fit ​​square opening 3. The locking mechanism is then folded upward to engage with the snap-fit ​​square opening 3, thus initially fixing the center position of the carton section 1 and the pallet section 2. Next, the sealing bottom plate 4 is laid flat on the bottom of the carton section 1. At this time, the sealing bottom plate 4 presses down to flatten the engaged locking mechanism to prevent it from springing out. At the same time, the four corners of the sealing bottom plate 4 penetrate the bottom of the carton section 1 and extend outward, and are nailed to the four corners of the paper pallet body. In this embodiment, a locking mechanism is set at the center of the carton section 1 for locking and limiting, and a sealing bottom plate 4 is set at the four corners for fixing. This solves the problem that the existing carton lacks a center limit, which makes it easy to break when the center of gravity shifts. It achieves simultaneous fixing of the center and the edge, improving the stability of packaging and transportation. Furthermore, a flattening and locking mechanism is provided for the bottom cover plate 4, which ensures the flatness of the bottom during loading. The four corners of the bottom cover plate 4 are also nailed together for fixation. No additional parts are required, the structure is compact, and the reliability of preventing slippage is improved. Preferably, a pre-folding crease line is set at the center of the paper tray body so that the locking mechanism can accurately enter the locking square opening 3 along a fixed trajectory when folding, avoiding manual positioning deviation that may cause incomplete locking.

[0023] Based on the above embodiments, the carton section 1 includes a plurality of wide side plates 101 and narrow side plates 102, and the carton section 1 is formed by the enclosing of the plurality of wide side plates 101 and narrow side plates 102 on eight sides.

[0024] Based on the above embodiments, the bottom of the side width plate 101 is folded up and provided with a square rocker plate 104 or a spliced ​​rocker plate 105, and the two are arranged adjacently and alternately at the bottom of several side width plates 101. When the cardboard box part 1 is formed by enclosing it, the snap-fit ​​square opening 3 is formed by the interlocking of the square rocker plate 104 and the splicing rocker plate 105.

[0025] Specifically, during the manufacturing process of the carton section 1, crease lines are pre-set on the bottom edge of each side panel 101, and the panels are folded inward along the crease lines to form a square rocker plate 104 and a splicing rocker plate 105. The square rocker plate 104 and the splicing rocker plate 105 are arranged in an adjacent and staggered manner at the bottom, that is, each side panel 101 is equipped with a rocker plate at the bottom, and the rocker plate types alternate between adjacent side panels. After all the rocker plates are folded inward, the ends of the square rocker plate 104 and the splicing rocker plate 105 are spliced ​​together to form a square opening, that is, the snap-fit ​​square opening 3. In this embodiment, the side wide plate 101, the side narrow plate 102, the square rocker plate 104 and the splicing rocker plate 105 are integrally formed, and the carton part 1 can be formed by overall folding and splicing. The structure is simple and reduces the types of materials and costs. Preferably, the carton section 1 is integrally formed from at least one sheet of composite corrugated cardboard, and the cross-section of the carton is a regular octagon or a near-octagonal structure, with the four corners of the short side corresponding to the four corners of the paper pallet body; Preferably, a connecting plate 103 is provided at one end of the outer side of the wide side plate 101 or the narrow side plate 102. When the enclosure is completed, the connecting plate 103 is folded and attached to the inner side of the other end, and the two are then nailed together for connection and fixation. It should be noted that the staggered splicing structure of the square rocker plate 104 and the splicing rocker plate 105 is a mature existing technology in this field, so it will not be described in detail here.

[0026] Based on the above embodiments, the locking mechanism includes a locking plate 5; Locking plate 5 is located on top of the paper tray body; The center of the locking plate 5 is divided to form several locking plates 501. The locking plates 501 are folded upward and pass through the locking square opening 3 to form a lock.

[0027] Based on the above embodiment, the locking plate 5 has a through opening 502 in the center, and the card plate 501 is formed by dividing the four corners of the through opening 502 at equal intervals.

[0028] Based on the above embodiments, the folded edge of the card plate 501 is adapted to the edge of the snap-fit ​​square opening 3.

[0029] In this embodiment, four card plates 501 are arranged in a centrally symmetrical distribution, forming four limiting points inside the card slot 3, so that the force on the central area of ​​the carton part 1 and the pallet part 2 is more even, preventing deflection or disengagement caused by single-point force. Preferably, the card plate 501 is set in a trapezoidal shape, that is, the end near the through opening 502 is narrower and the end is wider, which meets the requirement of equidistant division. At the same time, the trapezoidal shape is conducive to guiding the card plate 501 through the snap-fit ​​square opening 3 when folding, reducing jamming. Furthermore, the inner edge dimension of the snap-fit ​​square opening 3 is slightly larger than the overall outline dimension formed by the folding of the four snap-fit ​​plates 501, thereby ensuring that the snap-fit ​​plates 501 can be smoothly inserted, while avoiding excessive gaps that could cause the snap-fit ​​plates to wobble, thus further improving the anti-loosening ability.

[0030] Based on the above embodiments, a square through hole 106 is provided at the bottom of the side narrow plate 102; The four corners of the cover base plate 4 have insert portions 401 extending outward. The insert portions 401 pass through the square through holes 106 and extend outward, and are flush with the four corners of the paper tray body.

[0031] Specifically, in the above embodiment, the four card plates 501 that have been folded upwards by 90 degrees and passed through the snap-fit ​​square opening 3 are flipped up by 90 degrees again, so that they change from an upright state to a state of being flat against the bottom of the inside of the carton section 1. The sealing bottom plate 4 is laid flat on the bottom of the inside of the carton section 1, and its bottom surface is directly pressed on the card plates 501 that have been flipped up 180 degrees and laid flat, thereby completely closing the snap-fit ​​square opening 3 and pressing and fixing the card plates 501. At the same time, the insert parts 401 at the four corners of the sealing bottom plate 4 are inserted into the square through holes 106 opened at the bottom of the side narrow plate 102 and aligned with the outer contour of the four corners of the paper tray body below, which facilitates the subsequent external nailing. In this embodiment, a cover bottom plate 4 and an insert part 401 are provided. The cover bottom plate 4 flattens and fixes the central card plate 501 in the vertical direction, and the four corner insert parts 401 pass through the box wall laterally to form a pin connection. The finally aligned insert parts 401 provide a basis for external nailing, realizing a three-dimensional and multi-layer locking connection and improving connection stability. Furthermore, a bottom cover plate 4 is provided to flatten the internal folded card plate 501 and seal the cover, thereby closing the central snap-fit ​​square opening 3, improving the flatness of the bottom of the box, and facilitating the placement of items inside the box.

[0032] This embodiment also provides a method for manufacturing a pallet-integrated heavy-duty octagonal cardboard box, including the following steps: S1. A carton section 1 is formed by enclosing several wide side panels 101 and narrow side panels 102, and the bottom is folded over to form a snap-fit ​​square opening 3; S2. Place the tray part 2 at the bottom of the carton part 1, and fold the locking mechanism upwards to engage with the snap-fit ​​square opening 3; S3. Lay the sealing base plate 4 flat on the bottom of the carton section 1 to flatten the locking mechanism; S4. Insert the bottom cover plate 4 through the four corners outside the carton part 1 and nail it to the four corners of the paper tray body for fixation.

[0033] In step S1, a connecting plate 103 is also provided on the outer side of the side wide plate 101 or side narrow plate 102 located at both ends of the edge. When the enclosure is completed, the connecting plate 103 is folded, attached and overlapped to the inner side of the other side wide plate 101 or side narrow plate 102, and the overlapping part is then nailed and fixed.

[0034] In step S2, four isosceles trapezoidal card plates 501 are formed by equidistant oblique division along the four corners of the through opening 502.

[0035] Specifically, the pre-cut and creasing cardboard is unfolded to enclose the wide side panel 101 and the narrow side panel 102, forming an octagonal cylindrical carton section 1. Then, the folding structure at the bottom of the carton is spliced ​​together to form the snap-fit ​​square opening 3 at the bottom of the carton. Next, the pre-made paper pallet body is placed at the bottom of the formed carton section 1, ensuring that the centers of the two are aligned. Then, the operator folds the several locking plates 501 formed on the locking plate 5 upwards by 90 degrees, allowing them to pass through the snap-fit ​​square opening 3 at the bottom of the carton and enter the carton. Finally, the sealing bottom plate 4 is placed... Inside the carton section 1, the cardboard is laid flat on the bottom of the carton. During this process, the lower surface of the cover bottom plate 4 presses the previously folded-up card plate 501 against the bottom of the carton, changing it from an upright state to a flat state, thereby pressing the card plate 501 firmly and completely sealing the snap-fit ​​square opening 3. At the same time, the insert parts 401 at the four corners of the cover bottom plate 4 are folded down and naturally inserted into the square through holes 106 at the bottom of the side narrow plate 102 and unfolded flat on the four corners of the paper pallet body. Finally, using a nailing device, the insert parts 401 and the corners of the paper pallet body are simultaneously penetrated from the outside to nail and fix them.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection, the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the meaning of the above terms in this application according to the specific circumstances.

[0037] The foregoing has provided a detailed description of a pallet-integrated heavy-duty octagonal cardboard box and its manufacturing method, as provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A heavy-duty octagonal cardboard box with integrated pallet assembly, characterized in that, It includes a carton section (1) and a pallet section (2); The top of the carton section (1) is open and the bottom is folded inward to form a snap-fit ​​square opening (3). The tray section (2) includes a paper tray body and a locking mechanism; The locking mechanism is located at the center of the paper tray body and is used to fold and engage with the snap-fit ​​square opening (3); The bottom of the carton section (1) is covered with a sealing base plate (4). While the sealing bottom plate (4) flattens the locking mechanism, its four corners penetrate to the outside of the carton part (1) and are nailed to the four corners of the paper tray body.

2. The pallet-combined heavy-duty octagonal cardboard box according to claim 1, characterized in that, The carton section (1) includes several wide side panels (101) and narrow side panels (102), and the carton section (1) is formed by the enclosing of the several wide side panels (101) and narrow side panels (102) on eight sides.

3. A pallet-combined heavy-duty octagonal cardboard box according to claim 2, characterized in that, The bottom of the side width plate (101) is folded over and provided with a square rocker plate (104) or a spliced ​​rocker plate (105), and the two are arranged alternately and adjacently at the bottom of several side width plates (101); When the carton section (1) is enclosed, the snap-fit ​​square opening (3) is formed by the interlocking of the square rocker plate (104) and the splicing rocker plate (105).

4. A pallet-integrated heavy-duty octagonal cardboard box according to claim 3, characterized in that, The locking mechanism includes a locking plate (5); The center of the locking plate (5) is divided to form several locking plates (501), and the several locking plates (501) are folded upward and pass through the locking square opening (3) to form a lock.

5. A pallet-integrated heavy-duty octagonal cardboard box according to claim 4, characterized in that, The locking plate (5) has a through opening (502) in the center, and the card plate (501) is formed by dividing the four corners of the through opening (502) at equal intervals.

6. A pallet-integrated heavy-duty octagonal cardboard box according to claim 5, characterized in that, The folded edge of the card plate (501) is adapted to the edge of the snap-fit ​​square opening (3).

7. A pallet-combined heavy-duty octagonal cardboard box according to claim 2, characterized in that, The bottom of the narrow side plate (102) is provided with a square through hole (106); The four corners of the cover plate (4) have insert parts (401) extending outward. The insert parts (401) pass through the square through hole (106) and extend outward, and are flush with the four corners of the paper tray body.

8. A method for manufacturing a pallet-assembly integrated heavy-duty octagonal cardboard box, used for the pallet-assembly integrated heavy-duty octagonal cardboard box as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1. A carton section (1) is formed by enclosing several wide side panels (101) and narrow side panels (102), and the bottom is folded over to form a snap-fit ​​square opening (3). S2. Place the tray part (2) at the bottom of the carton part (1) and fold the locking mechanism upwards to engage with the snap-fit ​​square opening (3); S3. Lay the sealing bottom plate (4) flat on the bottom of the carton part (1) to flatten the locking mechanism; S4. Insert the bottom cover plate (4) through the four corners outside the carton part (1) and nail it to the four corners of the paper tray body.

9. A method for manufacturing a pallet-assembly integrated heavy-duty octagonal cardboard box according to claim 8, characterized in that, In step S1, a connecting plate (103) is provided on the outer side of the side wide plate (101) or side narrow plate (102) located at both ends of the edge. When the enclosure is completed, the connecting plate (103) is folded, attached and overlapped on the inner side of the other side wide plate (101) or side narrow plate (102), and the overlapping part is then nailed and fixed.

10. A method for manufacturing a pallet-assembly integrated heavy-duty octagonal cardboard box according to claim 8, characterized in that, In step S2, four isosceles trapezoidal card plates (501) are formed by equidistant oblique division along the four corners of the through opening (502).

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