Liner structure

Abstract

The utility model provides a liner structure which comprises a bottom pad and further comprises a plurality of folding side pads which are correspondingly connected to the ends of the bottom pad respectively, a plurality of first cutting lines are preset on the folding side pads, and the joints of the folding side pads and the bottom pad and the first cutting lines are cut to enable the folding side pads to form a first stretching structure. A plurality of second cutting lines for forming second stretching structures between the bottom mat and the folding side mat after cutting are preset in the peripheral area, connected to the folding side mat, of the bottom mat, and a plurality of third cutting lines for separating the adjacent second stretching structures after cutting are preset in the peripheral area of the bottom mat. According to the gasket structure provided by the utility model, the gasket knife edge is on the same plane in the whole production process, and the knife die is easy to manufacture; the gasket structure is formed through plane cutting, the corresponding size angle is easy to design, and accurate machining is easy; manufacturing materials can be flatly laid in the transportation process, and space is saved; in the practical application process, the packaging box can be suitable for most regular products, can be used in pairs of up-down or left-right buffering packaging in a matched mode, and can be used for packaging various small household appliances.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation packaging, in particular to a liner structure. Background Art

[0002] EPE cushioning foam, also known as pearl cotton, is currently used for transport packaging cushioning in most terminal control unit modules and electronic components on the market due to its excellent cushioning properties, simple manufacturing process, and reusability. However, to adapt to the product's shape, the manufacturing process for most EPE liners requires first punching out the liner sheet scraps and then manually bonding the sheets together to create the desired packaging shape. This type of liner structure is complex to form, occupies a large amount of space for use and storage, and is not very versatile.

[0003] However, in the existing one-piece cutting and molding liner structure that does not require bonding, the one-piece pearl cotton liner can usually only be used as a flat plate buffer or fixed at a specific position with the addition of tape, and cannot form a fixed cavity for accommodating a complete product. As a result, the scope of use of the traditional one-piece cutting and molding liner structure that does not require bonding is very limited.

[0004] To this end, the prior art discloses a buffer unit and buffer device that utilizes a single flexible buffer unit with matching protrusions and grooves to form a curved buffer structure for cushioning. This structure is suitable for use with products of various specifications, saving storage space and improving resource utilization. However, the packaging structure's inherent fixing and limiting capabilities are weak, resulting in limited ability to secure the packaged items, and therefore, its practical application value is limited.

[0005] The prior art also discloses a pearl cotton folding corner protection packaging, which adopts a pearl cotton folding form, but the knife edge of the die for manufacturing the pearl cotton is complex, and the thickness of the unpunched part is 0.05mm~1mm. In actual production, the thickness error of the pearl cotton board is large, which makes it difficult to accurately control the knife edge of the die, so the molding is more difficult. Utility Model Content

[0006] The utility model provides a liner structure to solve the technical problems of the existing product packaging buffer liner having a complex molding method and poor versatility.

[0007] In order to solve the above problems, the technical solution adopted by the present invention is:

[0008] The utility model provides a pad structure, comprising a base pad and further comprising:

[0009] A plurality of folding side pads are respectively connected to the ends of the bottom pad, and a plurality of first cutting lines are preset on the folding side pads. After cutting the connection between the folding side pads and the bottom pads and the first cutting lines, the folding side pads form a first tensile structure;

[0010] The peripheral area of ​​the bottom pad connected to the folding side pad is preset with a plurality of second cutting lines to form a second tensile structure between the bottom pad and the folding side pad after cutting, and the peripheral area of ​​the bottom pad is preset with a plurality of third cutting lines to separate adjacent second tensile structures after cutting.

[0011] Preferably, the bottom pad is rectangular and has four folding side pads, including:

[0012] a pair of first side pads, connected to opposite ends of the bottom pad respectively;

[0013] a pair of second side pads, respectively connected to the other opposite ends of the bottom pad located between the pair of first side pads;

[0014] The first side pad and the second side pad are both preset with at least one group of first cutting lines, and each group of first cutting lines points perpendicularly to the base pad, and the first cutting lines in the group are arranged in sequence and alternately; after cutting, the corresponding end connections of the first side pad, the second side pad and the base pad are respectively retained in the middle section of the connection.

[0015] Preferably, the first side pad and the second side pad are both rectangular;

[0016] The peripheral area is frame-shaped and is composed of trapezoidal side areas corresponding to the four folding side pads, which are spliced ​​together in sequence. Four groups of second cutting lines are respectively arranged inside the four trapezoidal side areas, and each group of second cutting lines is parallel to the corresponding folding side pad. The second cutting lines in the group are arranged in sequence at intervals and staggered; the four third cutting lines are respectively arranged at the splicing of adjacent trapezoidal side areas.

[0017] Preferably, the length of the first side pad is greater than the longer side of the base pad, and the length of the second side pad is equal to the shorter side of the base pad.

[0018] Preferably, four groups of first cutting lines are preset at intervals between the first side pads, and two groups of first cutting lines are preset at intervals between the second side pads.

[0019] Furthermore, the pad structure further comprises:

[0020] The connecting pieces are arranged on opposite sides of the folding side pads and are used to cooperate with the connecting pieces of adjacent folding side pads after the pad structure is cut and each folding side pad is folded, so that the adjacent folding side pads are connected in sequence.

[0021] Preferably, the connecting pieces of adjacent folded side pads are in the form of protrusions and recesses that fit together.

[0022] Preferably, both the protruding portion and the recessed portion are isosceles trapezoidal.

[0023] Preferably, the angles of the pair of convex bottom corners of the protrusion away from the folding side pad are 90-100 degrees, and the angles of the pair of concave bottom corners of the concave portion extending into the folding side pad are 1-5 degrees smaller than the convex bottom angles.

[0024] Preferably, the lining structure is made of pearl cotton, EVA or corrugated cardboard material cut in one piece.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The padding structure provided by the utility model has the padding cutting edge in one plane throughout the entire production process, and the cutting die is easy to make; the padding structure is formed by plane cutting, and the corresponding size and angle are easy to design, and it is easy to accurately realize processing and forming; the production materials can be laid flat during transportation to save space, and compared with the pearl cotton pads formed by pasting, the transportation cost is greatly reduced; in actual product application, it can be applicable to most relatively regular products, such as electronic components, circuit boards, central controllers and other product accessories; it can be used in pairs as upper and lower or left and right position buffer packaging, and can also be used for packaging small household appliances such as fans, rice cookers, humidifiers, etc., and has the advantage of wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution proposed by the present invention, it is described in detail below in combination with the embodiments and drawings. It should be understood that the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, these drawings can be changed under the concept of the present invention.

[0028] Figure 1 A schematic diagram of the structure of the liner structure provided by the present invention in a flattened state;

[0029] Figure 2 This is a structural schematic diagram of the bottom pad of an embodiment of the pad structure provided by the utility model in a stretched state;

[0030] Figure 3 for Figure 2 A schematic structural diagram of the folded side pad of the liner structure in a stretched state;

[0031] Figure 4 A schematic diagram of the structure of the liner structure of the present invention in a buckled state;

[0032] Figure 5 for Figure 4 Schematic diagram of the product assembly status structure of the pad structure.

[0033] Among them, the main marks of the drawings are as follows:

[0034] 1. Bottom pad; 11. Peripheral area; 111. Trapezoidal side area; 2. Folding side pad; 21. First side pad; 22. Second side pad; 3. First cutting line; 4. First stretching structure; 5. Second cutting line; 6. Second stretching structure; 7. Third cutting line; 8. First fold line; 9. Second fold line; 10. Connector; 101. Protrusion; 102. Recess.

[0035] Among them, other marks in the figure are as follows:

[0036] A. Convex bottom angle; B. Concave bottom angle. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clear, the following is a summary of the technical problems, technical solutions and beneficial effects to be solved by the present invention. Figure 1-5 And embodiments, the utility model is further described in detail.

[0038] Please also refer to Figure 1-5 The pad structure provided by the present invention includes a base pad and further includes:

[0039] Multiple folding side pads 2 are respectively connected to the end portions of the base pad 1. A plurality of first cutting lines 3 are preset on the folding side pads 2. After cutting the connection between the folding side pads 2 and the base pad 1 and the first cutting lines 3, a first stretching structure 4 can be formed on the folding side pads 2 so that the cut folding side pads 2 can be longitudinally stretched along the first cutting lines 3 (that is, the folding side pads 2 are stretched in a direction parallel to the connection between the folding side pads 2 and the base pad 1).

[0040] The bottom pad 1 is connected to the peripheral area 11 of the folding side pad 2 and is preset with a number of second cutting lines 5 that form a second stretching structure 6 between the bottom pad 1 and the folding side pad 2 after cutting, and the bottom pad 1 is preset with a number of third cutting lines 7 that separate the adjacent second stretching structures 6 after cutting, so that the folding side pad 2 after cutting can be laterally stretched along the second cutting lines 5 (that is, the folding side pad 2 is stretched along the direction perpendicular to the folding side pad 2 and the bottom pad 1). In conjunction with the above-mentioned operation of longitudinally stretching the folding side pad 2 along the first cutting lines 3, the padding structure after cutting and buckling can be stretched as a whole in the horizontal and vertical directions to follow the product size (or only stretched separately in the corresponding direction), so that when the size of the product to be packaged increases in the length and width directions, the padding structure can be increased in size as a whole in the corresponding direction to follow the product to be packaged. Therefore, the padding structure provided by the utility model can be flexibly adapted to fit products to be packaged with different lengths and widths, so that the packaging box formed by the buckled padding structure can be firmly and snugly loaded with the product to be packaged, and can be used for transportation and storage buffering.

[0041] Please also refer to Figure 1-5 In this embodiment, the bottom pad 1 is rectangular, and four folding side pads 2 are provided, including:

[0042] A pair of first side pads 21 are connected to opposite ends of the base pad 1 respectively;

[0043] The pair of second side pads 22 are respectively connected to the other two opposite ends of the base pad 1 between the pair of first side pads 21 .

[0044] Each of the first and second side pads 21, 22 is pre-set with at least one set of first cutting lines 3, each of which points perpendicularly to the base pad 1. The first cutting lines 3 within each set are staggered and arranged in sequence. After cutting, the first and second side pads 21, 22 retain a first fold line 8 and a second fold line 9 at the midsection of the corresponding end connection points with the base pad 1. This means that the first and second fold lines 8 and 9 are the connecting edges of the pad structure that remain after cutting and are not split. This allows the first and second side pads 21, 22 to be folded inward 90 degrees relative to the base pad 1 along the first and second fold lines 8 and 9, respectively, to become perpendicular to the base pad 1. This allows the folded first and second side pads 21, 22, and base pad 1 to form a complete packaging box with an internal fixed cavity. Furthermore, the first and second fold lines 8 and 9 also serve to securely connect the first and second side pads 21, 22 to the base pad 1 after folding, preventing misalignment of the first and second side pads 21, 22 relative to the base pad 1 during transportation and packaging.

[0045] Please also refer to Figure 1-5 In this embodiment, the first side pad 21 and the second side pad 22 are both rectangular;

[0046] The peripheral area 11 is frame-shaped and is composed of trapezoidal side areas 111 respectively connected to the four folding side pads 2, which are spliced ​​adjacent to each other in sequence. Four groups of second cutting lines 5 are respectively arranged inside the four trapezoidal side areas 111, and each group of second cutting lines 5 is parallel to the corresponding folding side pad 2. The second cutting lines 5 in the group are arranged in sequence at intervals and staggered; the four third cutting lines 7 are respectively arranged at the splicing of adjacent trapezoidal side areas 111, that is, the third cutting lines 7 are located at a pair of oblique sides of the trapezoidal side area 111.

[0047] Please also refer to Figure 1-5 As a preferred implementation of this embodiment, the length of the first side pad 21 is greater than the longer side of the base pad 1, serving as the long side of the packaging box; the length of the second side pad 22 is equal to the shorter side of the base pad 1, serving as the short side of the packaging box.

[0048] Please also refer to Figure 1-5 As a preferred implementation of this embodiment, the first side pad 21 is preset with four groups of first cutting lines 3 at intervals, and the second side pad 22 is preset with two groups of first cutting lines 3 at intervals.

[0049] Please also refer to Figure 1-5 In this embodiment, the pad structure further includes:

[0050] The connecting parts 10 are provided on opposite sides of the folding side pads 2, and are used to cooperate with the connecting parts 10 of the adjacent folding side pads 2 after the pad structure is cut and each folding side pad 2 is folded, so that the adjacent folding side pads 2 are connected in sequence to form a stable "U-shaped" frame structure, and an inner cavity for fixing and accommodating the product to be packaged is enclosed between the inner side of the frame structure and the bottom pad 1.

[0051] Please also refer to Figure 1-5 As a preferred implementation of this embodiment, the connecting pieces 10 of adjacent folding side pads 2 are formed into protrusions 101 and recesses 102 that fit together.

[0052] Please also refer to Figure 1-5 As a more preferred implementation of this embodiment, the protruding portion 101 and the recessed portion 102 are both isosceles trapezoidal.

[0053] Please also refer to Figure 1-5 As the most preferred embodiment of this embodiment, the angle of the protruding portion 101's pair of outwardly convex bottom angles A, which are away from the folding side pads 2, is 90-100 degrees. The angle of the pair of inwardly concave bottom angles B, which are deeper into the folding side pads 2, is 1-5 degrees less than the outwardly convex bottom angles A. Due to the excellent elasticity of the pearl cotton material, the protruding portions 101 and the concave portions 102 can create an interference fit between adjacent folding side pads 2 after they are fastened together, thus ensuring a more secure lock.

[0054] Please also refer to Figure 1-5 In this embodiment, the recessed portions 102 are disposed on two opposite sides of the longer first side pad 21 , and the protruding portions 101 are disposed on two opposite sides of the shorter second side pad 22 .

[0055] Please also refer to Figure 1-5 In this embodiment, the padding structure is made of pearl cotton, EVA or corrugated cardboard material cut in one piece.

[0056] Please also refer to Figure 1-5 As a preferred implementation of this embodiment, the padding structure is cut from a piece of pearl cotton sheet with a side length of 5 to 30 mm, wherein the above-mentioned first cutting line 3, second cutting line 5 and third cutting line 7 are cut by the knife edge of the knife die, and the first fold line 8 and the second fold line 9 are not cut at all.

[0057] In other embodiments, the shape of the bottom pad 1 can also be changed according to the shape of the product to be packaged. For example, if the product to be packaged is in a triangular, pentagonal, or hexagonal shape, the bottom pad 1 can be replaced with a triangular, pentagonal, or hexagonal shape. In this case, the first tensile structure 4 and the second tensile structure 6 of the folding side pad 2 are similar to those in the above embodiment.

[0058] In other embodiments, the protrusion 101 and the recess 102 may also be rectangular or circular, which can also achieve a snap-fitting effect.

[0059] The padding structure provided by the present invention has a padding blade that is on the same plane during the entire production process, so the cutting die is easy to make; the padding structure is formed by plane cutting, and the corresponding dimensions and angles are relatively easy to design, and are easy to accurately achieve processing and forming; during transportation, the materials can be laid flat to save space, and compared with the pearl cotton padding formed by pasting, the transportation cost is greatly reduced; in actual product application, it can be applicable to most relatively regular products, such as electronic components, circuit boards, central controllers and other product accessories; it can be used in pairs as upper and lower or left and right position buffer packaging, and can also be used for packaging of small household appliances such as fans, rice cookers, humidifiers, etc., and has the advantage of wide application.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the utility model.

Claims

1. A pad structure comprising a base pad (1), characterized in that: Also includes: A plurality of folding side pads (2) are respectively connected to the ends of the base pad (1); the folding side pads (2) are preset with a plurality of first cutting lines (3); and after cutting the connection between the folding side pads (2) and the base pad (1) and the first cutting lines (3), the folding side pads (2) form a first tensile structure (4); The bottom pad (1) is connected to the peripheral area (11) of the folding side pad (2) and is provided with a plurality of second cutting lines (5) for forming a second tensile structure (6) between the bottom pad (1) and the folding side pad (2) after cutting, and the bottom pad (1) is provided with a plurality of third cutting lines (7) for separating adjacent second tensile structures (6) after cutting in the peripheral area (11).

2. The pad structure according to claim 1, wherein: The bottom pad (1) is rectangular, and the folding side pads (2) are provided with four, including: A pair of first side pads (21) are respectively connected to opposite ends of the base pad (1); A pair of second side pads (22) are respectively connected to the other two opposite ends of the base pad (1) located between the pair of first side pads (21); The first side pad (21) and the second side pad (22) are both preset with at least one group of the first cutting lines (3), and each group of the first cutting lines (3) is perpendicularly directed to the base pad (1), and the first cutting lines (3) in the group are sequentially and alternately arranged; after the corresponding end connection points of the first side pad (21), the second side pad (22) and the base pad (1) are cut, the first fold line (8) and the second fold line (9) are respectively retained in the middle of the connection points.

3. The pad structure according to claim 2, wherein: The first side pad (21) and the second side pad (22) are both rectangular; The peripheral area (11) is frame-shaped and is composed of trapezoidal side areas (111) correspondingly connected to four folding side pads (2) and spliced ​​in sequence. Four groups of second cutting lines (5) are respectively arranged inside the four trapezoidal side areas (111), and each group of second cutting lines (5) is parallel to the corresponding folding side pad (2). The second cutting lines (5) in the group are arranged in sequence and staggered. The four third cutting lines (7) are respectively arranged at the splicing points of adjacent trapezoidal side areas (111).

4. The pad structure according to claim 3, wherein: The length of the first side pad (21) is greater than the longer side of the base pad (1), and the length of the second side pad (22) is equal to the shorter side of the base pad (1).

5. The pad structure according to claim 4, wherein: The first side pad (21) is preset with four groups of the first cutting lines (3) at intervals, and the second side pad (22) is preset with two groups of the first cutting lines (3) at intervals.

6. The liner structure according to any one of claims 1 to 5, characterized in that: Also includes: Connecting pieces (10) are provided on opposite sides of the folding side pads (2) and are used to cooperate with the connecting pieces (10) of adjacent folding side pads (2) after the pad structure is cut and each folding side pad (2) is folded, so that the adjacent folding side pads (2) are connected in sequence.

7. The pad structure according to claim 6, wherein: The connecting pieces (10) of adjacent folding side pads (2) are in the form of protruding parts (101) and recessed parts (102) that fit together.

8. The pad structure according to claim 7, wherein: The protruding portion (101) and the recessed portion (102) are both isosceles trapezoidal.

9. The pad structure according to claim 8, wherein The angle of a pair of outward convex bottom angles (A) of the protruding portion (101) away from the folding side pad (2) is 90 to 100 degrees, and the angle of a pair of inward concave bottom angles (B) of the recessed portion (102) extending deep into the folding side pad (2) is 1 to 5 degrees smaller than the outward convex bottom angles (A).

10. The liner structure according to any one of claims 1 to 5, characterized in that: The lining structure is made of pearl cotton, EVA or corrugated cardboard material cut and made in one piece.

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