Double-layer buffer structure of folding forming cavity

Abstract

The utility model discloses a double-layer buffer structure of a folding forming cavity, and relates to the technical field of packaging products. A final cavity used for protecting a product is divided into a plurality of discrete cavities, the discrete cavities are unfolded and processed into a buffer module with a cavity double-wall buffer structure, then the buffer module is reversely folded according to the unfolding step to form a final buffer block, and the final buffer block is internally provided with a final cavity which is very matched with the shape of the product to be protected. A soft material can be arranged on the surface of the cavity; by means of the design, the machining difficulty is greatly reduced, a machinable solution is provided for many cavities which cannot be formed according to a conventional method, and the hollow double-wall buffering structure in the buffering module provides good buffering performance and strength for product protection. The foam pearl wool can replace the same type of foam pearl wool to package and protect products in the packaging field, further can solve the problems that the foam pearl wool material is insufficient in strength, difficult in cavity processing, large in packaging size, not environmentally friendly in foam and the like, and has wide practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging products, in particular to a double-layer buffer structure of a folded forming cavity. Background Art

[0002] At present, the protection of products in the packaging field mostly adopts foam cavity or pearl cotton bonding or cutting, mainly using the good cushioning and softness of foam or pearl cotton to effectively protect the product from damage during transportation. However, foam and pearl cotton have the following serious defects:

[0003] 1. Foam products are not environmentally friendly. Foam is not only difficult to degrade, but also contains many toxic substances and cannot pass environmental tests. Moreover, foam can easily break into tiny particles, forming microplastics, which cause serious harm to animals and nature.

[0004] 2. Although foam and pearl cotton have good cushioning properties, their strength is limited. When protecting slightly heavier products, they are easily compressed and penetrated and lose their protective function. Therefore, foam and pearl cotton have certain limitations in protecting slightly heavier products.

[0005] 3. The foam is very brittle and easy to break. Once broken, it loses its protective function and also forms white garbage;

[0006] 4. Although pearl cotton is not easy to break, it is difficult to form a cavity that fits the product, has poor processing performance, and has a limited scope of use;

[0007] 5. Foam and pearl cotton are extremely flammable materials. They will burn immediately when encountering sparks and are difficult to extinguish. There are fire hazards no matter where they are piled;

[0008] 6. Foam and pearl cotton are large in size and light in weight, have low strength, take up a lot of storage space, and are not suitable for long-distance transportation and are subject to geographical restrictions. Utility Model Content

[0009] In order to solve the above problems and achieve the above objectives, the utility model provides the following technical solutions: a double-layer buffer structure of a folded molding cavity, comprising a final buffer block, wherein a final molding cavity for protecting the product is arranged inside the final buffer block;

[0010] The final buffer block includes at least two buffer modules, both of which are hollow double-wall structures with a buffer function and a cavity inside, and the two buffer modules are connected by a connecting thin material and can be folded in half or opened and separated by the connecting thin material;

[0011] The final molding cavity includes at least two separate cavities, and the two separate cavities are respectively arranged between the two buffer modules;

[0012] On the opposite sides of the two buffer modules, concave platforms are provided for reinforcement, and the sides away from the connecting thin material piece are connected and locked by fixing member one or fixing member two.

[0013] As a preferred technical solution of the present utility model, two or more buffer modules are folded along the connecting thin material piece to form a final buffer block with a final forming cavity inside.

[0014] As a preferred technical solution of the present utility model, a soft layer is provided inside the discrete cavity, and the soft layer is soft glue or polymeric soft material.

[0015] As a preferred technical solution of the present utility model, a plurality of corresponding grooves and protrusions are respectively provided on the opposite surfaces of the two buffer modules, and one end of the protrusion is inserted into the inside of the groove for positioning.

[0016] As a preferred technical solution of the present utility model, fixing member one includes a buckle and a card slot, the buckle and the card slot are respectively provided on the sides of the two buffer modules away from the connecting thin material piece, and the buckle is engaged with the card slot.

[0017] As a preferred technical solution of the present utility model, fixing member two includes two connecting holes respectively provided inside the two buffer modules, and a screw and a nut respectively provided inside the two connecting holes.

[0018] As a preferred technical solution of the present utility model, the buffer module is made of a ductile material, and the two connecting holes are respectively provided inside the two buffer modules.

[0019] As a preferred technical solution of the present utility model, the final forming cavity is one of a closed type, a semi-closed type, an open type or a combination thereof, and the connecting thin material piece is one of a continuous type or an intermittent type.

[0020] As a preferred technical solution of the present utility model, the buffer modules can also be connected and fastened by other connecting and fixing members.

[0021] Compared with the prior art, the present utility model provides a double-layer buffer structure with a folded forming cavity, and has the following beneficial effects:

[0022] The double-layer buffer structure of the folding cavity greatly reduces the assembly difficulty by setting the final buffer block with a folding assembly design. The design of dividing the final forming cavity into multiple discrete cavities reduces the processing difficulty and makes the final forming cavity fit the protected product better. The buffer module can meet the requirements of excellent buffer performance and soft performance of the foam pearl cotton material, and further solve the defective problems of the foam pearl cotton material. It can replace the same type of foam pearl cotton material in the packaging field to effectively protect the packaged products, greatly reduce the packaging cost, reduce the packaging volume, facilitate transportation, be load-bearing, more environmentally friendly to use, and have wide applicability. Description of the Drawings

[0023] Figure 1 Schematic structural diagram of a double-layer buffer structure of a folding cavity proposed by the present utility model;

[0024] Figure 2 Schematic nut structure diagram of a double-layer buffer structure of a folding cavity proposed by the present utility model;

[0025] Figure 3 Schematic diagram of the unfolded state of the final buffer block of a double-layer buffer structure of a folding cavity proposed by the present utility model;

[0026] Figure 4 Bottom view of the unfolded state of the final buffer block of a double-layer buffer structure of a folding cavity proposed by the present utility model;

[0027] Figure 5 Schematic diagram of the discrete state of the soft layer and the discrete cavity of a double-layer buffer structure of a folding cavity proposed by the present utility model;

[0028] Figure 6 Schematic structural diagram of Embodiment 2 of a folding cavity proposed by the present utility model;

[0029] Figure 7 Schematic structural diagram of Embodiment 2 of a folding cavity proposed by the present utility model;

[0030] Figure 8 Schematic structural diagram of Embodiment 3 of a folding cavity proposed by the present utility model;

[0031] Figure 9 Schematic structural diagram of Embodiment 3 of a folding cavity proposed by the present utility model;

[0032] Figure 10 Schematic structural diagram of Embodiment 3 of a folding cavity proposed by the present utility model.

[0033] In the figure: 1. final buffer block; 11. final molding cavity; 12. buffer module; 121. concave platform; 13. connecting thin material; 14. discrete cavity; 15. fixing part 1; 151. buckle; 152. slot; 16. fixing part 2; 161. connecting hole; 162. screw; 163. nut; 17. soft layer; 18. groove; 19. protrusion; 2. L-shaped connecting fixing part. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] For example, see Figures 1-5 A double-layer buffer structure of a folded molding cavity, comprising a final buffer block 1, wherein a final molding cavity 11 for protecting a product is arranged inside the final buffer block 1; the final buffer block 1 comprises at least two buffer modules 12, both of which are hollow double-layer wall structures with a cavity inside and have a buffering function, the two buffer modules 12 are connected by a connecting thin material 13, and the two buffer modules 12 can be folded in half or opened and separated by the connecting thin material 13; the final molding cavity 11 comprises at least two discrete cavities 14, and the two discrete cavities 14 are respectively arranged between the two buffer modules 12; the opposite back surfaces of the two buffer modules 12 are provided with a concave platform 121 for reinforcement, and the side away from the connecting thin material 13 is connected and locked by a fixing member 15 or a fixing member 2 16.

[0036] The final molding cavity 11 inside the final buffer block 1 is split into two or more discrete cavities 14 according to the structural characteristics of the protected product. The two buffer modules 12 are connected with continuous or intermittent thin walls. The blow molding process is used to blow-mold a material with a certain toughness into a double-walled, hollow buffer module 12 with a buffering function. When packaging the product, the protected product is placed inside a discrete cavity 14, and then folded in reverse along the connecting thin material 13 according to the splitting steps to form the final buffer block 1 and the final molding cavity 11 to cover the product, and the fixing part 15 or the fixing part 2 16 or a combination of the two are interlocked and locked.

[0037] The final forming cavity 11 can perform the operation of parting and separating into discrete cavities 14 and flattening the buffer module 12, which can enable some complex non - formable cavities to have achievable solutions. Parting and flattening blow molding can solve some elements that could not be processed and realized in foam molding or ordinary blow molding, such as some holes with a certain angle to the demolding direction or other non - demoldable molding shapes.

[0038] The connecting hole 161 can not only be used to install the screw 162 and the nut, but also strengthen the inner and outer walls of the buffer module 12. It can strengthen the product and adjust the wall thickness strength according to the weight of the protected product. Thus, it can not only replace almost all packaging protection fields of the same type as foam pearl cotton packaging, but also further protect heavy products that foam pearl cotton cannot protect. When protecting the same product, it can also reduce the packaging volume, save packaging volume, save space, and save freight.

[0039] As a specific technical solution of this embodiment, two or more buffer modules 12 are folded along the connecting thin - walled part 13 to form a final buffer block 1 with a final forming cavity 11 inside. When the outer wall is impacted by an external force, it deforms inward, and the reaction force cancels the impact external force to achieve a buffering effect. Only need to measure the strength of the outer wall and the distance between the inner wall and the hollow part to ensure that the deformation process of the outer wall does not affect the protection of the product by the inner wall.

[0040] As a specific technical solution of this embodiment, a soft layer 17 is arranged inside the discrete cavity 14. The soft layer 17 is a soft rubber or a polymer soft material. The polymer soft material is an elastic material such as silica gel, hydrogenated silica gel, rubber, etc. The discrete cavity 14 is treated by wrapping soft rubber or pasting or polymerizing the soft material, which can make the overall structure have high strength and good buffering performance, make the discrete cavity 14 have a very soft softness, ensure the softness of the contact surface with the product, and ensure that the surface of the protected product is not scratched.

[0041] As a specific technical solution of this embodiment, a number of corresponding grooves 18 and protrusions 19 are respectively arranged on the opposite surfaces of the two buffer modules 12. One end of the protrusion 19 is inserted into the inside of the groove 18 for positioning. The arrangement of the groove 18 and the protrusion 19 ensures that when the two buffer modules 12 are folded and closed together, the groove 18 and the protrusion 19 are clamped together, ensuring the connection stability between the two buffer modules 12 and avoiding front - back, left - right misalignment. The groove 18 and the protrusion 19 are circular or polygonal or a combination of the two.

[0042] As a specific technical solution of this embodiment, the first fixing member 15 includes a buckle 151 and a clamping groove 152. The buckle 151 and the clamping groove 152 are respectively arranged on the sides of the two buffer modules 12 away from the connecting thin material piece 13, and the buckle 151 is clamped with the clamping groove 152. The second fixing member 16 includes two connecting holes 161 respectively arranged inside the two buffer modules 12, and a screw 162 and a nut 163 respectively arranged inside the two connecting holes 161. The two connecting holes 161 are respectively arranged inside the two buffer modules 12. The two buffer modules 12 can be directly locked to each other by the first fixing member 15, or can be locked by the cooperation of the screw 162 and the nut 163 in the second fixing member 16, which can ensure that the assembled final buffer block 1 will not be scattered due to throwing or extrusion during the handling and transportation process.

[0043] As a specific technical solution of this embodiment, the buffer module 12 is made of a ductile material. The two connecting holes 161 are respectively arranged inside the two buffer modules 12. The ductile material can be plastic or a metal thin plate with high elasticity. Since the buffer module 12 has a hollow double-layer arm structure, it can play a good buffering role. When the outer wall formed by the ductile material is impacted by an external force, it deforms inward, and the reaction force offsets the impact external force to achieve the buffering effect. Only need to measure the strength of the outer wall and the distance between the inner wall and the hollow to ensure that the deformation process of the outer wall does not affect the protection of the product by the inner wall.

[0044] A preparation process for a double-layer buffer structure of a folding forming cavity includes the following steps:

[0045] S1. Flatten and blow mold: The final forming cavity 11 is divided into multiple discrete cavities 14 and unfolded onto each buffer module 12 for blow molding. Two or more buffer modules 12 with a hollow double-layer wall structure containing discrete cavities 14 are blow molded and connected to each other by a continuous or discontinuous connecting thin material piece 13.

[0046] S2. Cavity encapsulation with glue: The discrete cavities 14 are encapsulated with soft glue, or pasted or polymerized with soft materials to make the cavities have a very soft softness and ensure that the surface of the product to be protected is not scratched.

[0047] S3. Fold and form: Place the product to be protected in the discrete cavity 14 on a certain buffer module 12, and then fold the other buffer modules 12 along the connecting thin material piece 13 to form the required final forming cavity 11 to wrap the product to be protected.

[0048] S4. Interlock and fasten: Connect and lock each buffer module 12 through the provided first fixing member 15 or second fixing member 16 to ensure that each buffer module 12 can still be firmly locked and not scattered during the handling process or in a harsh environment.

[0049] As a specific technical solution of this embodiment, the final forming cavity 11 is one or a combination of a closed type, a semi-closed type, and an open type. The connecting thin material piece 13 is one of a continuous type or an intermittent type. The continuous connecting thin material piece 13 fills the space between the two buffer modules 12, and the intermittent connecting thin material pieces 13 are distributed at intervals between the two buffer blocks. The number of intermittent connecting thin material pieces 13 is selected according to the length of the buffer module 12. Refer to Figure 4 , Figure 4 The connecting thin material piece 13 adopted therein is of an intermittent type, and the connecting thin material piece 13 can be made of a ductile material.

[0050] As a specific technical solution of this embodiment, the buffer module 12 can also be connected and fastened through other connecting and fixing parts 2. The circumferential part of the concave platform 121 can play a role in strengthening the support of the outer wall of the buffer module 12, further ensuring the buffer effect of the product.

[0051] Embodiment Two, refer to Figures 1-7 , compared with the above embodiment, in this embodiment, a semi-closed final buffer block 1 is provided. The final forming cavity 11 inside the final buffer block 1 is semi-closed, which can protect the corners of some products, such as the transportation packaging of flat products such as ceramic tiles, floor tiles, rock slabs, glass, doors and windows, and furniture panels. Refer to 6-7. The buffer module 12 in this embodiment is in an L shape, and the two buffer modules 12 still adopt the connection method of folding and assembling through the connecting thin material piece 13, reducing the processing and production difficulty.

[0052] Embodiment Three, refer to Figures 1-10 , compared with the above embodiment, in this embodiment, an open final buffer block 1 is provided. The two sides of the final buffer block 1 are jointly provided with an L-shaped connecting and fixing part 2 through screws 162. The final forming cavity 11 inside the final buffer block 1 is open, which can protect the corners of some products, such as the transportation packaging of household appliances such as refrigerators, washing machines, air conditioners, televisions, and range hoods. Refer to Figures 8-9 , Figure 9 is a schematic diagram of the unfolded state of the buffer module 12 in this embodiment. The final buffer block 1 in this embodiment is in an L shape, and its internal final forming cavity 11 is also in an L shape. The final buffer block 1 is composed of two flat buffer modules 12. The two buffer modules 12 are still connected by the connecting thin material piece 13 and adopt the folding and assembling method. Since the final buffer block 1 in this embodiment is in an L shape, after the two buffer modules 12 are folded, it is necessary to fix the folded final buffer block 1 through the cooperation of the L-shaped connecting and fixing part 2 and the screw 162. Figure 10 is a schematic diagram of the assembly process of the buffer module 12 and the L-shaped connecting and fixing part 2 in this embodiment.

[0053] In summary, the double-layer buffer structure of the folding cavity, the final buffer block 1 designed by folding and assembling, greatly reduces the assembly difficulty. The design of dividing the final forming cavity 11 into multiple discrete cavities 14 reduces the processing difficulty and makes the final forming cavity 11 fit the protected product better. The buffer module 12 can meet the requirements of the excellent buffer performance and soft performance of the foam pearl cotton material, and further solve the bad defects of the foam pearl cotton material. It can replace the same type of foam pearl cotton material in the packaging field to effectively protect the packaged products, greatly reduce the packaging cost, reduce the packaging volume, facilitate transportation, be load-bearing, be more environmentally friendly in use, and have wide applicability.

[0054] It should be noted that in this article, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0055] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer buffer structure for a folding cavity, comprising a final buffer block (1), characterized in that: The interior of the final buffer block (1) is provided with a final forming cavity (11) for protecting the product. The final buffer block (1) includes at least two buffer modules (12). Both of the two buffer modules (12) are hollow double-wall structures with a cavity inside and having a buffering function. The two buffer modules (12) are connected by a connecting thin piece (13), and the two buffer modules (12) can be folded and fitted or opened and separated through the connecting thin piece (13). The final forming cavity (11) includes at least two discrete cavities (14), and the two discrete cavities (14) are respectively arranged between the two buffer modules (12). Concave platforms (121) are provided on the opposite sides of the two buffer modules (12) for reinforcement, and the sides away from the connecting thin piece (13) are connected and locked by a first fixing member (15) or a second fixing member (16).

2. The double-layer buffer structure of a folding forming cavity according to claim 1, characterized in that: Two or more buffer modules (12) are folded along the connecting thin piece (13) to form a final buffer block (1) with a final forming cavity (11) inside.

3. The double-layer buffer structure with a folding cavity according to claim 1, wherein: A soft layer (17) is arranged inside the discrete cavity (14), and the soft layer (17) is made of soft rubber or polymeric soft material.

4. A double-layer buffer structure with a folded forming cavity according to claim 1, characterized in that: A number of corresponding grooves (18) and bumps (19) are respectively arranged on the opposite surfaces of the two buffer modules (12), and one end of the bump (19) is inserted into the inside of the groove (18) for positioning.

5. The double-layer buffer structure with a folded forming cavity according to claim 1, characterized in that: The first fixing member (15) includes a buckle (151) and a clamping groove (152). The buckle (151) and the clamping groove (152) are respectively arranged on the sides of the two buffer modules (12) away from the connecting thin piece (13), and the buckle (151) is clamped with the clamping groove (152).

6. A double-layer buffer structure for a folding forming cavity according to claim 1, characterized in that: The second fixing member (16) includes two connecting holes (161) respectively arranged inside the two buffer modules (12), and a screw (162) and a nut (163) respectively arranged inside the two connecting holes (161).

7. The double-layer buffer structure with a folded forming cavity according to claim 6, characterized in that: The buffer module (12) is made of a ductile material, and the two connecting holes (161) are respectively arranged inside the two buffer modules (12).

8. A double-layer buffer structure for a folding cavity according to claim 1, characterized in that: The final forming cavity (11) is one or a combination of a closed type, a semi-closed type, and an open type, and the connecting thin piece (13) is one of a continuous type or an intermittent type.

9. The double-layer buffer structure of a folding forming cavity according to claim 1, wherein: The buffer module (12) is connected and fastened through a connecting fixing member (2).

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