An integrally molded die cut carton

Abstract

The utility model discloses a kind of integrally-formed die-cutting cartons, relating to carton technical field, including box, box has four perimeter longitudinal enclosure face, upper cover and bottom support surface;Bottom support surface four perimeter side wall is respectively connected with four perimeter longitudinal enclosure face continuously;Right side one longitudinal enclosure is connected with upper cover continuously, left side one longitudinal enclosure front and back side wall is all connected with extension end one, and the end of extension end one is connected with extension end two;Front and back two surface longitudinal enclosure top end is all connected with folding piece.The utility model utilizes the clamping piece that folding piece and front and back two surface longitudinal enclosure between form hold extension end one, and utilize folding piece as the limiting piece that extension end two is separated from folding piece and front and back two surface longitudinal enclosure between, can effectively guarantee the wrapping strength that whole box four perimeter longitudinal enclosure is enclosed together, avoid that carton is assembled after locking not tightly, easily be opened by external force, cause article to scatter outside.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box technology, specifically to an integrally molded die-cut cardboard box. Background Technology

[0002] One-piece die-cut cartons are an innovative packaging solution that achieves tape-free and staple-free closure through die-cutting and creasing technology. Its core lies in using the die-cutting process to create precisely interlocking protrusions and grooves on the cardboard, forming a zipper-like closure system. At the same time, the creasing process is combined to press bending lines into the board material, allowing the carton to be bent and shaped according to the predetermined position.

[0003] In the existing technology, some die-cut cardboard boxes, after assembly, may not lock tightly due to the lock size being too small, the slot being too shallow, or the shape being mismatched. This makes them easy to be pried open by external force, causing the items to scatter outside. Utility Model Content

[0004] The purpose of this invention is to provide an integrally molded die-cut carton to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an integrally molded die-cut carton, including a carton body, the carton body having four longitudinal enclosure surfaces, a top cover and a bottom support surface; The four perimeter sidewalls of the bottom support surface are continuously connected to the four longitudinal enclosure surfaces. The surrounding longitudinal enclosure has two longitudinal enclosures on the front and back, and two longitudinal enclosures on the left and right sides; A longitudinal enclosure on the right side is continuously connected to the top cover, and an extension end 1 is connected to both the front and rear side walls of a longitudinal enclosure on the left side. The end of the extension end 1 is connected to an extension end 2. The top of both the front and rear longitudinal enclosures is connected to folding flaps. After the two folding pieces are folded, they form a clamping gap between themselves and the longitudinal barriers on the front and back sides. The clamping gap is used for the extension end one to pass through, and the extension end two can be bent along the connection with the extension end one and abut against the longitudinal barrier side wall on the right side.

[0006] The four longitudinal enclosures fold up around the connection with the base surface. Both extension ends are bent and distributed at 90° to the left longitudinal enclosure. The two extension ends abut against the opposite side walls of the front and rear longitudinal enclosures. The two extension ends are bent and distributed at 90° to the extension ends. The two extension ends are in the same vertical plane and abut against the side wall of the right longitudinal enclosure. Then, two folding pieces are folded down and abut against the side wall of the two extension ends. The top cover is folded along the crease at the connection with the right longitudinal enclosure to be parallel to the base surface, forming a closed box.

[0007] In a further embodiment, the width of the first extension end is equal to the width of the front and rear longitudinal enclosures; The width of the second extension end is less than half the width of the right-side longitudinal enclosure.

[0008] In a further embodiment, an inner extension tab is connected to the end of the top cover; When the top cover folds up along the connection with a longitudinal barrier on the right side to be parallel to the bottom support surface, the inner extension piece folds up along the connection with the top cover and is inserted into the gap between the top cover and a longitudinal barrier on the left side.

[0009] In a further embodiment, an opening is provided at the connection between the inner extension piece and the top cover.

[0010] In a further embodiment, an insert piece is provided on both the front and rear sides of a longitudinal enclosure sidewall on the right side. The insert piece has a longitudinal crease, and an insertion hole is provided on the second extension end. After the insert piece passes through the insertion hole, it is folded along the crease to form an L-shape.

[0011] In a further embodiment, the device also includes a reinforcing cardboard with at least four creases, which is folded along the creases to form a rectangular frame, the length and width of which are equal to the length and width inside the box.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model is an integrated die-cut cardboard box. It utilizes a folding piece to form a clamping member between the folding piece and the longitudinal barriers on the front and back sides, and uses the folding piece as a limiting member to prevent the extension end from being pulled out from between the folding piece and the longitudinal barriers on the front and back sides. This effectively ensures the wrapping strength of the entire box body with the longitudinal barriers all around. The integrated molding technology significantly improves the overall compressive strength compared to traditional cardboard boxes. It relies on a self-locking mechanism to achieve a firm closure, effectively preventing accidental opening during transportation and protecting the safety of the internal items. It eliminates the need for tape or staples, reducing the use of tape and other consumables, making it more environmentally friendly. It solves the problem that after traditional cardboard box assembly, due to the lock size being too small, the slot being too shallow, or the shape being mismatched, the lock is not tight after assembly and is easily opened by external force, causing items to scatter outside. Attached Figure Description

[0013] Figure 1 A schematic diagram of the main structure of this utility model embodiment with the top cover opened to remove the inner reinforcing cardboard; Figure 2 and Figure 3 All of these are schematic diagrams showing the gradual disassembly of the box body according to embodiments of this utility model; Figure 4 This is a schematic diagram of the structure of the reinforcing cardboard bent along the indentation in an embodiment of the present invention.

[0014] In the diagram: 1. Front and rear longitudinal barriers; 11. Folding piece; 2. Left and right longitudinal barriers; 21. Extension end one; 22. Extension end two; 23. Insertion hole; 24. Insert piece; 3. Top cover; 31. Inwardly extending piece; 4. Reinforcing cardboard; 5. Bottom support surface. Detailed Implementation

[0015] 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.

[0016] This embodiment provides an integrally molded die-cut carton, such as... Figure 1 As shown, it includes a box body, which has four longitudinal enclosure surfaces, a top cover 3, and a bottom support surface 5.

[0017] Specifically, the bottom support surface 5 is the central area, and the four surrounding side walls of the bottom support surface 5 are continuously connected to the surrounding longitudinal enclosure surfaces.

[0018] The surrounding longitudinal enclosure has two longitudinal enclosures 1 on the front and back and two longitudinal enclosures 2 on the left and right.

[0019] On the right side, a longitudinal enclosure is continuously connected to the top cover 3. On the left side, both the front and rear walls of the longitudinal enclosure are connected to an extension end 21, and the end of the extension end 21 is connected to an extension end 22.

[0020] The top of the front and rear longitudinal enclosures 1 are connected to folding pieces 11; after the two folding pieces 11 are folded, they form a clamping gap with the front and rear longitudinal enclosures 1. The clamping gap is used for the extension end 21 to pass through, and the extension end 22 can be bent along the connection with the extension end 21 and abut against the right longitudinal enclosure side wall.

[0021] During assembly, such as Figure 2 and Figure 3 As shown, the four longitudinal enclosures are folded up around the connection point with the base surface 5. Both extension ends 21 are bent and positioned at a 90° angle to the left longitudinal enclosure. The two folding tabs 11 are folded downwards, allowing each extension end 21 to pass through its corresponding clamping gap. Both extension ends 22 are bent and positioned at a 90° angle to extension ends 21, meaning they can bend along their connection points with extension ends 21 and rest against the right longitudinal enclosure sidewall. At this point, both extension ends 22 are in the same vertical plane and rest against the right longitudinal enclosure sidewall. Finally, the top cover 3 is folded up along its connection point with the right longitudinal enclosure to be parallel to the base surface 5, forming a closed box.

[0022] The side wall of the folding piece 11 abuts the extension end 22 with the right side fence, effectively dispersing external forces and avoiding local stress concentration.

[0023] An inner buckle extension piece 31 is connected to the end of the upper cover 3. When the upper cover 3 is folded along the connection point with the right longitudinal guardrail to be parallel to the bottom support surface 5, the inner buckle extension piece 31 folds into the gap between the upper cover 3 and the left longitudinal guardrail along the connection point with the upper cover 3, so as to achieve a stable closure of the upper cover 3. At the same time, an opening is provided at the connection point between the inner buckle extension piece 31 and the upper cover 3. It is convenient to insert a fingertip into the opening, and the inner buckle extension piece 31 can be repeatedly folded to close or open the upper cover 3.

[0024] It should be noted that the width of extension end 1 21 is equal to the width of the front and rear longitudinal barriers; the width of extension end 2 22 is less than half the width of the right longitudinal barrier. This dimensional design helps extension end 1 21 to pass smoothly through the clamping gap and allows extension end 2 22 to effectively abut against the right barrier.

[0025] like Figure 3 As shown, insert pieces 24 are provided on both the front and rear sides of a longitudinal enclosure sidewall on the right. The insert pieces 24 have longitudinal creases, and the extension end 22 has a hole 23. After the insert piece 24 passes through the hole 23, it is folded along the crease into an L-shape. This further fixes the extension end 22 and enhances the overall structural strength of the carton.

[0026] Furthermore, if the side wall height of the box is too low or lacks lateral support structures (such as reinforcing ribs or creases), the box may deform and scatter when stacked or under pressure, causing items to fall out. Therefore, this embodiment also includes reinforcing cardboard 4, such as... Figure 1 and Figure 4 As shown, the reinforcing cardboard 4 has at least four creases, and is folded along the creases to form a rectangular frame. The length and width of the frame are equal to the length and width inside the box. The reinforcing cardboard 4 can effectively enhance the box's compression resistance and load-bearing capacity. Fold the reinforcing cardboard 4 along the four crease lines to form a rectangular frame. The length and width of the frame should match the length and width of the inner cavity of the box, and the height should be the same as the inner height of the box. Insert the frame into the box, ensuring that its four sides fit against the inner wall of the box to enhance overall compressive strength. The reinforcing cardboard 4 is installed independently inside the box; its placement can be chosen according to usage requirements.

[0027] In summary, this box utilizes the folding tab 11 to form a clamping element between the front and rear longitudinal barriers 1, which holds the extension end 21 in place. The folding tab 11 also acts as a limiting element to prevent the extension end 22 from being pulled out from between the folding tab 11 and the front and rear longitudinal barriers 1. This effectively ensures the overall strength of the box when the longitudinal barriers are closed together. Employing one-piece molding technology, the overall compressive strength is significantly improved compared to traditional cardboard boxes. A self-locking mechanism ensures a secure closure, effectively preventing accidental opening during transportation and protecting the contents. It eliminates the need for tape or staples, reducing the use of such materials and making it more environmentally friendly. This design also solves the problem of traditional cardboard boxes where, after assembly, the latches are too small, the slots are too shallow, or the shapes are mismatched, resulting in loose locks and easy opening by external forces, causing items to scatter outside.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A one-piece molded die-cut cardboard box, characterized in that, include: The box has a four-sided longitudinal enclosure, a top cover (3) and a bottom support (5). The four perimeter sidewalls of the bottom support surface (5) are continuously connected to the four longitudinal enclosure surfaces. The surrounding longitudinal enclosure has two longitudinal enclosures (1) on the front and back and two longitudinal enclosures (2) on the left and right sides. A longitudinal enclosure on the right side is continuously connected to the top cover (3), and an extension end (21) is connected to both the front and rear side walls of a longitudinal enclosure on the left side. The end of the extension end (21) is connected to an extension end (22). The top of the longitudinal enclosure (1) on both the front and rear sides is connected to a folding piece (11). After the two folding pieces (11) are folded, they form a clamping gap between themselves and the longitudinal enclosures (1) on the front and back sides. The clamping gap is used for the extension end one (21) to pass through, and the extension end two (22) can be bent along the connection with the extension end one (21) and abut against the longitudinal enclosure side wall on the right side.

2. The unitary, die-cut carton of claim 1, wherein, The width of the extension end (21) is equal to the width of the front and rear longitudinal enclosure; The width of the second extension (22) is less than half the width of the right longitudinal enclosure.

3. The unitary, die-cut carton of claim 1, wherein, The end of the upper cover (3) is connected to an inner buckle extension piece (31). When the top cover (3) is folded up along the connection with a longitudinal fence on the right side to be parallel to the bottom support surface (5), the inner extension piece (31) is folded up along the connection with the top cover (3) and inserted into the gap between the top cover (3) and a longitudinal fence on the left side.

4. The unitary, die-cut carton of claim 3, wherein, An opening is provided at the connection between the inner extension piece (31) and the upper cover (3).

5. The unitary, die-cut carton of claim 1, wherein, An insert piece (24) is provided on both the front and rear sides of a longitudinal fence sidewall on the right side. The insert piece (24) has a longitudinal crease. The extension end (22) has a hole (23). The insert piece (24) passes through the hole (23) and then folds along the crease to form an L shape.

6. The unitary, die-cut carton of any of claims 1-5, wherein, It also includes a reinforcing cardboard (4), which has at least four creases and is folded along the creases to form a rectangular frame, the length and width of which are equal to the length and width inside the box.

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