Integrated folding windowing paperboard structure and paper support for transparent display carton

Abstract

The utility model discloses an integrated folding windowing paperboard structure for a transparent display carton, which is formed by precutting a whole paperboard through a die-cutting machine and comprises a bottom panel, a front panel and a rear panel. The back plate is of a double-layer hollow clamping plate structure and is matched with the transverse supporting face to improve the compressive strength, the storage face is thickened and supported through double-layer paperboard bonding, and a stable bearing plane is formed. The front object table board is aligned with the carton transparent PVC window body to form a visual display area; the thickened lining structure of the back plate is matched with the size of a packaging box, a three-dimensional display protection system of display window-supporting bracket-protection back plate is formed, display convenience is taken into consideration, and meanwhile, enough stable and reliable supporting and protection are provided. The multifunctional display cabinet has the advantages of being convenient to transport and store, rapid to assemble, form and box, high in efficiency and good in display effect, has high practicability, environmental friendliness and convenience, and has very good market prospects and popularization significance.

Description

Technical Field

[0001] This utility model relates to the technical field of inner tray products for cardboard boxes and cartons, specifically an integrated folding windowed cardboard structure and paper tray for transparent display cardboard boxes. Background Technology

[0002] In today's commodity distribution sector, liquid products like milk and beverages, due to their relatively fragile packaging materials, are highly susceptible to damage and leakage during transport due to impacts. Electrical appliances have complex and precise internal structures; even slight collisions can damage internal components and affect product performance. Porcelain and glass products, while hard, are brittle, and even minor impacts can cause cracks or breakage. Therefore, to ensure the integrity of these products during transportation, the inner trays inside cardboard boxes play a crucial role in cushioning and preventing collisions. Meanwhile, with increasingly fierce market competition, retailers are placing greater emphasis on product display. Creating windows in cardboard packaging to showcase the internal product has become an important means of attracting consumers' attention and boosting sales. This has given inner trays, originally intended only for protection, a new mission: product display.

[0003] Currently, there are many types of display tray materials used for product carton packaging on the market. Foam trays have good cushioning performance and are lightweight, effectively reducing packaging weight, but they are not easily degradable and cause significant environmental pollution. Pearl cotton trays also offer excellent shock absorption and good flexibility, but their production cost is relatively high. Plastic trays are sturdy and durable and easy to mold, but their display function is relatively ordinary. Paper trays are favored for their environmentally friendly characteristics, but their cushioning performance is slightly inferior to other materials. Paper grid strips are mainly used to separate products, and have certain limitations in both cushioning and display functions.

[0004] Material Costs: Based on actual research and data analysis, taking common electrical appliance cardboard packaging as an example, if foam inserts are used, an average of 3-4 foam inserts are needed per carton to ensure product safety during transportation. Each foam insert costs approximately 0.5 yuan, thus increasing the material cost per carton by 1.5-2 yuan just for foam inserts. If pearl cotton inserts are used, the cost is even higher, approximately 1 yuan per insert. With the same required quantity, the material cost per carton will increase by 3-4 yuan. This cumulative effect places an extremely heavy material cost burden on companies engaged in large-scale production and transportation.

[0005] Labor costs and efficiency: Since most products require at least two inner trays to fill the carton, workers need to place each tray individually during the packing process, adjusting them according to the product's shape and position to ensure effective protection without affecting its display. This process adds an average of 2-3 minutes to the packing time per carton compared to using a single tray. In actual production line operations, the process becomes cumbersome and complex when using multiple trays; over time, this leads to a significant increase in labor costs. Summary of the Invention

[0006] To address the shortcomings and defects of the existing technologies, the inventors developed and designed a one-piece display paper tray that can be quickly formed. It is made of cardboard that has been pre-cut and creased by a die-cutting machine, and then folded after key parts are manually or automatically glued together. It can support a quick unfolding operation to form a display paper tray with a window, which can be directly placed into a cardboard box.

[0007] The working principle of this utility model: This integrated folding windowed cardboard structure mainly consists of a bottom panel, a front panel, and a back panel. It is pre-cut and creasing by a die-cutting machine. The specific panel structure includes several creases, adhesive parts, and window parts. After bonding, it can be pre-folded and ready for shipment. When it is ready for packaging, the two ends are manually squeezed to quickly unfold the front and back panels. The two panels unfold and stick together towards the center to form a storage tray and side support frames on both sides. After folding, the front panel forms an open and unobstructed storage tray, creating a display position. The back panel is folded to form a back panel structure. The back panel structure provides thickened padding to adapt to the width or thickness of the carton and also provides protection for the goods. It forms a multi-directional protective support structure with a tray at the bottom, side support frames at the sides, and a back panel at the back. The open storage tray overlaps with the transparent window of the carton to form a display window structure for visually displaying the goods inside the package. The back panel adopts a double-layer hollow plywood structure, which, together with the horizontal support surface, enhances the compressive strength. The storage surface is thickened and supported by double-layer cardboard bonding, forming a stable load-bearing plane. The front storage platform is aligned with the transparent PVC window of the carton to form a visual display area. The thickened padding structure of the back panel is adapted to the size of the packaging box, forming a three-dimensional display and protection system of "display window - support bracket - protective back panel", which takes into account the convenience of display while providing sufficient stable and reliable support and protection.

[0008] The beneficial technical effects of this utility model are as follows:

[0009] (1) Easy to transport and store: It integrates multiple functions such as placement, support, protection and display into one, with a compact structure and multiple functions, reducing the number of packaging components, simplifying the packaging structure, and conforming to the concept of modern packaging design. When folded, it fits tightly against the cardboard, and the whole is in a sheet-like structure, occupying little space. High-density stacking into bundles facilitates transportation and storage, reducing transportation and warehousing costs.

[0010] (2) Rapid assembly and high packing efficiency: When packaging is required, the front and back panels can be quickly unfolded and formed by manually squeezing both ends. The two panels unfold together and are then glued together in the middle to form the final shape. The assembly process is simple and quick, improving packaging efficiency and saving labor and time costs. By adjusting the die-cutting and creasing design of the cardboard, the size of the window, the thickness of the back panel, the thickness of the side support frame, and other structural dimensions can be flexibly adjusted according to the size, shape, and display requirements of different products. It has high customizability and a wide range of applications.

[0011] (3) Good display effect: After the front panel is folded, it forms an open and unobstructed storage surface, which overlaps with the transparent window of the carton to form a display window structure, which can intuitively display the goods inside the packaging box, attract consumers' attention, and enhance the display effect and sales competitiveness of the goods.

[0012] (4) Excellent support and protection: It forms a multi-directional protective support structure with a bracket at the bottom, side support frames at the sides, and a back panel at the back. The back panel structure provides thickened padding to accommodate the width or thickness of the carton and also protects the goods, effectively preventing damage from collisions and squeezing during transportation and storage, thus improving the safety of the goods. The support flaps fold inward after unfolding to fit the front and rear brackets, forming end support reinforcement. The first and second pre-cut folding plates can fold along the connecting edges after unfolding to form thickened support for the shelf surface. The back panel uses double-layer boards to form a hollow sandwich structure with cavities and is equipped with a transverse support surface. The shelf surface is a thickened support structure made of double-layer cardboard. These designs all improve the stability and load-bearing capacity of the entire structure. Attached Figure Description

[0013] Figure 1 This is a die-cutting diagram illustrating the basic structure of the integrated folding windowed cardboard structure for the transparent display carton of this utility model.

[0014] Figure 2 This is a schematic diagram illustrating the usage effect of the integrated folding windowed cardboard structure for the transparent display carton of this utility model.

[0015] Figure 3 This is a modified die-cutting drawing of the integrated folding windowed cardboard structure for the transparent display cardboard box of this utility model.

[0016] Figure 4 A three-dimensional structural diagram of an integrated folding windowed cardboard structure;

[0017] Figure 5 A schematic diagram of the bonding and folding of the front panel of a one-piece folding windowed cardboard structure;

[0018] Figure 6 A schematic diagram of the bonding and folding of the back panel of a one-piece folding windowed cardboard structure;

[0019] Figure 7 A schematic diagram showing the unfolded state of the back panel of the integrated folding windowed cardboard structure during use;

[0020] Figure 8 A three-dimensional view of the final unfolded state of the back panel of the integrated folding windowed cardboard structure and a three-dimensional structural view of the integrated folding windowed cardboard tray.

[0021] Figure 9 A three-dimensional view of the rear side after the integrated folding window paper holder is unfolded;

[0022] Figure 10 The die-cutting diagram shows a preferred improved structure in the embodiment of the integrated folding windowed cardboard structure.

[0023] Figure 11 A three-dimensional structural diagram of a preferred improved structure in an embodiment of an integrated folding windowed cardboard structure;

[0024] Figure 12 This is a schematic diagram illustrating the usage effect of an integrated folding window paper holder.

[0025] in:

[0026] 1—Bottom panel; 11—Fold crease;

[0027] 2. Front panel, 21—first adhesive part, 22—first crease, 23—second crease, 24—first window, 25—butt adhesive part, 26—front storage table, 27—front end bracket, 28—support folding ear;

[0028] 3—Rear panel, 31—Second adhesive part, 32—Third crease, 33—Fourth crease, 34—Second window, 35—First adhesive piece, 36—Longitudinal groove, 37—Rear storage platform, 38—Back panel, 39—Back panel crease, 310—Rear end bracket, 320—Second adhesive piece, 330—Adhesive crease, 340—Third window, 350—Fourth window

[0029] 4—Front-opening window bracket;

[0030] 5—Rear panel bracket;

[0031] 6—Side support frame;

[0032] 7—Horizontal support surface. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0034] Example 1: As Figure 1 As shown, the one-piece folding windowed cardboard structure for transparent display cartons is formed by pre-cutting a single sheet of cardboard using a die-cutting machine, and includes:

[0035] The bottom panel 1, located in the middle, is composed of two fold lines 11, with the front panel 2 on one side and the rear panel 3 on the other side;

[0036] The front panel 2 includes: a first adhesive portion 21 located at the end edge, for folding along the first crease 22 and the second crease 23 and then adhesively attached to the middle of the bottom panel 1; a first window 24 opened in the middle of the panel, the first window 24 interrupting the first crease 22 and the second crease 23, and having at least two mating adhesive portions 25 reserved at the edge; after folding along the first crease 22 or the second crease 23, the two mating adhesive portions 25 are glued together, and after being unfolded, it serves as a front shelf 26; the area of ​​the first window 24 forms a window area, and the part between the edge of the first window 24 and the edge of the front panel 2, after being unfolded, forms a front end bracket 27;

[0037] The rear panel 3 includes: a second adhesive portion 31 located at the end edge, used to be folded along the third fold 32 and the fourth fold 33 and then bonded to the middle of the bottom panel 1; a second opening 34 opened in the middle of the panel, with a first adhesive piece 35 reserved along the edge of the second opening 34; the third fold 32 extends laterally through the width of the panel, and the fourth fold 33 is parallel to the third fold 32, but the fourth fold 33 is interrupted by two longitudinal grooves 36; the back panel 38 is located between the two longitudinal grooves 36, connects the third fold 32, and includes three back panel folds 39, with the two back panel folds 39 away from the third fold 32 forming an adhesive area for bonding with the adhesive piece; the adhesive area, after being folded and unfolded, serves as a rear shelf 37, which is flush with the front shelf 26 to form a shelf for placing items, and the portion between the edge of the longitudinal groove 36 and the edge of the rear panel 3, after being unfolded, forms a rear end bracket 310.

[0038] In actual use: such as Figures 3-9As shown, after die-cutting, the cardboard is glued: the front panel 2 is folded down along the second crease 23, so that the first adhesive part 21 is glued to the middle of the bottom panel 1. A butt-joint adhesive part 25 near the bottom panel 1 is folded down, so that it is glued to another folded butt-joint adhesive part 25. Similarly, the back panel 3 is folded down along the third crease 32, so that the first adhesive piece 35 is glued to the adhesive area, and the second adhesive part 31 is glued to the middle of the bottom panel 1. Then it can be pressed into a folded state for shipment, storage, or transportation. When it needs to be boxed, both hands are used to press and fold inward along the folding crease 11. At this time, because the first adhesive part 21 and the second adhesive part 31 are fixed to the middle of the bottom panel, the folded front panel 2 and back panel 3 are bent and unfolded along the first crease 22, the second crease 23, the third crease 32, and the fourth crease 33, thus unfolding their double-layer structure. In the process, the two mating adhesive parts 25 are bonded together and folded along the connecting edge of the mating adhesive parts 25 to form a plane placed between the double-layer structure, forming the front storage table 26; the part between the edge of the first window 24 and the edge of the front panel 2 unfolds to form the front end brackets 27 located at both ends; the rear panel 3 also forms a double-layer structure by folding and unfolding based on the third fold 32 and the fourth fold 33. The part cut by the longitudinal groove 36 forms an L-shaped table and a back panel that is attached to the rear panel 3 by bending and cooperating with the three back panel folds 39. The L-shaped table is the rear storage table 37. In this process, the first adhesive piece 35 is bent along the connecting edge to form support for the bottom of the L-shaped table and also to support the cavity thickness of the back panel. The two sides of the part between the edge of the longitudinal groove 36 and the edge of the rear panel 3 after unfolding form the rear end brackets 310 located at both ends. As the two parts move closer together, the front shelf 26 and the rear shelf 37, at the same height, combine to form a raised shelf for displaying goods. An open window at the front of the shelf allows for direct product display. At this point, the paper tray unfolds and is placed into a suitably sized display carton. It is important to note that the opening of the first window 24 should align with the direction of the transparent PVC window on the carton. The goods are then placed inside, and the carton is sealed. The entire process is quick and convenient. The formed paper tray provides support for the goods, the back panel provides back protection and support, and the side supports formed by the aligned front and rear brackets 27 and 310 provide support and protection for both sides.

[0039] Preferably, the first adhesive portion 21 and the second adhesive portion 31 have mutually adaptable toothed structures, and both are provided with transverse adhesive indentations. This structure allows the first adhesive portion 21 and the second adhesive portion 31 to be bonded along a uniform transverse direction without affecting each other's position, so that their ends can fit tightly together after unfolding.

[0040] Preferably, in another embodiment, the rear panel 3 further includes a third window 340, the edge of which is provided with a second adhesive piece 320 and an adhesive crease 330. The second adhesive piece 320 is used to bond to the surface of the folded back panel 38. After unfolding, the second adhesive piece 320 is bent along the adhesive crease 330 to form a support structure supporting the back panel 38. This design allows the back panel to obtain sufficient support strength, forms a thicker support surface, and facilitates adjustment of the back panel thickness to meet the needs of different packaging box specifications and packing styles.

[0041] Preferably, in another embodiment, such as Figure 10 , Figure 11 As shown, a pair of support flaps 28 are reserved on each side of the first window 24. After unfolding, the support flaps 28 are used to fold inward to fit the front end bracket 27 and the rear end bracket 310 to form end support reinforcement. After unfolding, the support flaps 28 can fold inward to form a support surface on the inner side of the side support frame 6 formed by the rear end bracket 310 and the front end bracket 27. When placed in the packaging box, it can enhance the support strength of the side support frame 6.

[0042] A fourth window 350 is provided on both sides of the bottom panel 1 in the front panel 2 area and the rear panel 3 area. During the folding and unfolding process, the fourth window 350 provides a folding operation opening, making it convenient for the folding operator to insert their fingers to grip, thereby improving the convenience and efficiency of folding and unfolding.

[0043] Example 2: Figure 2 As shown, based on the cardboard structure provided in Example 1, the folded one-piece folding windowed paper tray includes: a front windowed bracket 4 and a back panel bracket 5 formed by folding and unfolding relative to each other. The front shelf surface 26 of the front windowed bracket 4 and the rear shelf surface 37 of the back panel bracket 5 are aligned at the same height to form a shelf surface with a window. The back panel 38 is a double-layered board folded in half to form side support frames 6 at both ends, which are composed of front end brackets 27 and rear end brackets 310. It is placed inside a cardboard box or carton with a transparent unfolded window, with the window facing the transparent PVC window portion on the cardboard box or carton. The back panel 38 is composed of a hollow sandwich structure with cavities formed by double-layered boards, and is provided with at least one transverse support surface 7. The shelf surface is a thickened support structure formed by bonding two layers of cardboard.

[0044] In actual use: Place the formed paper tray into a suitably sized cardboard box or carton with a transparent unfolding window, ensuring that the opening direction of the first window 24 is aligned with the position and direction of the transparent PVC window on the cardboard box or carton. For example... Figure 12 As shown, the goods are then placed on the shelf, and finally packed and sealed to complete the packaging and display preparation.

[0045] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A one-piece folding windowed cardboard structure for transparent display cartons, formed by pre-cutting a single sheet of cardboard using a die-cutting machine, characterized in that... include: The bottom panel (1), located in the middle, is composed of two fold lines (11), with the front panel (2) on one side and the back panel (3) on the other side; The front panel (2) includes: a first adhesive part (21) located at the end edge, for folding along the first crease (22) and the second crease (23) and then adhesively attached to the middle of the bottom panel (1); a first window (24) opened in the middle of the panel, the first window (24) interrupts the first crease (22) and the second crease (23), and at least two butt adhesive parts (25) are reserved at the edge; after folding along the first crease (22) or the second crease (23), the two butt adhesive parts (25) are pasted together, and after being unfolded, they serve as a front shelf (26); the area of ​​the first window (24) forms a window area, and the part between the edge of the first window (24) and the edge of the front panel (2) unfolds to form a front end bracket (27); The back panel (3) includes: a second adhesive portion (31) located at the end edge, for folding along the third crease (32) and the fourth crease (33) and then adhesively attached to the middle of the bottom panel (1); a second opening (34) opened in the middle of the panel, and a first adhesive piece (35) reserved along the edge of the second opening (34); the third crease (32) extends laterally through the width direction of the panel, and the fourth crease (33) is parallel to the third crease (32), but the fourth crease (33) is interrupted by two longitudinal grooves (36); the back panel (3) 8) Located between the two longitudinal grooves (36), connecting the third crease (32), and including three back panel creases (39), the two back panel creases (39) away from the third crease (32) form an adhesive area for bonding with the first adhesive piece (35); after the adhesive area is folded and unfolded, it becomes the rear shelf (37), which is flush with the front shelf (26) to form a shelf for placing items, and the part between the edge of the longitudinal groove (36) and the edge of the rear panel (3) unfolds to form the rear end bracket (310).

2. The integrated folding windowed cardboard structure according to claim 1, characterized in that, The first adhesive portion (21) and the second adhesive portion (31) have mutually compatible tooth-like structures and both are provided with transverse adhesive indentations.

3. The integrated folding windowed cardboard structure according to claim 1, characterized in that, The rear panel (3) also includes a third window (340), the edge of which is reserved with a second adhesive piece (320) and an adhesive crease (330). The second adhesive piece (320) is used to bond to the surface of the folded back panel (38). After unfolding, the second adhesive piece (320) is bent along the adhesive crease (330) to form a support structure for supporting the back panel (38).

4. The integrated folding windowed cardboard structure according to claim 1, characterized in that, The first window (24) also has a pair of support flaps (28) reserved on both sides. After unfolding, the support flaps (28) are used to fold inward to fit the front end bracket (27) and the rear end bracket (310) to form end support reinforcement.

5. The integrated folding windowed cardboard structure according to claim 4, characterized in that, A fourth window (350) is provided on both sides of the bottom panel (1) in the front panel (2) area and the rear panel (3) area.

6. An integrated folding windowed paper tray formed by unfolding the integrated folding windowed cardboard structure according to any one of claims 1-5, characterized in that... include: The front window bracket (4) and the back panel bracket (5) are folded and unfolded relative to each other. The front shelf surface (26) of the front window bracket (4) and the rear shelf surface (37) of the back panel bracket (5) are aligned at the same height to form a shelf surface with a window. The back panel (38) is a double-layered board folded in half to form a side support frame (6) at both ends, which is composed of the front end bracket (27) and the rear end bracket (310). It is placed in a cardboard box or carton with a transparent unfolding window, with the window facing the transparent PVC window part on the cardboard box or carton.

7. The integrated folding window paper holder according to claim 6, characterized in that, The back panel (38) is composed of a hollow sandwich structure with a cavity formed by two layers of plates, and is provided with at least one transverse support surface (7).

8. The integrated folding window paper holder according to claim 6, characterized in that, The placement surface is a thickened support structure made of two layers of cardboard bonded together.

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