Expandable packaging buffer, mold and buffer sheet

Abstract

The utility model relates to an extendable packing buffer, mould and buffer sheet, packing buffer comprises a paper sheet, the paper sheet is provided with a plurality of slits, each slit comprises a tail wing and a wingtip, the tail wing comprises a left tail wing and a right tail wing, the left tail wing and the right tail wing are connected through the wingtip, at least one of the left tail wing and the right tail wing is in a curve pattern, and the left tail wing and the right tail wing are connected through the wingtip. The slits in each row are parallel and are aligned at intervals; hypothetical connecting lines can be made among the tail ends of the three staggered rows of mutually adjacent empennages, the connecting lines and the empennages are spliced to form wings, wing tips form bent inflection points after expansion, and the empennages form convex tip ends, so that the contact area is effectively enlarged, the wings or the wings and joints formed after expansion are more easily clamped, the clamping portability is improved, and the service life of the empennages is prolonged. And meanwhile, the stress area is obviously increased, the pressure is effectively dispersed, the local stress concentration degree is reduced, and the buffering effect and the interlocking capacity are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a packaging buffer, especially an extensible packaging buffer, a mold and a buffer sheet. BACKGROUND

[0002] Packaging buffer, also known as shockproof packaging or fragile packaging, its main purpose is to prevent the product from being damaged due to impact and vibration and other mechanical loads in the process of loading and unloading, transportation and other logistics. The buffer material relieves the impact load by providing the necessary space for the product in the high-speed drop process and dissipates a certain impact energy, so as to ensure that the product can still remain intact under harsh logistics conditions. With the progress of material science, plastic buffer materials have gradually become the mainstream. Such as ethylene-vinyl acetate copolymer rubber plastic (EVA), polyurethane (PU), foamed polypropylene (EPP) and so on. These materials have excellent buffering performance, processing performance and mechanical strength, but some materials still face challenges in environmental protection.

[0003] In recent years, with the improvement of environmental awareness, paper buffer materials have been widely used. Thanks to its unique honeycomb structure, honeycomb paper has achieved lightweight while maintaining high strength. This structure makes the honeycomb paper have a high strength / mass ratio, so it can provide sufficient protection with less material, which is beneficial to reduce transportation costs and energy consumption. But also because of its unique structure, if it is scattered during transportation, it is easy to be crushed and broken due to a large impact, greatly reducing the protection effect. SUMMARY

[0004] In view of the above problems, the utility model provides an extensible packaging buffer, by setting the tail wing and the wing tip, the wing tip forms a bending inflection point after expansion, and the tail wing forms a protruding tip, which enhances the occlusion performance and effectively improves the buffering effect.

[0005] To solve this technical problem, the utility model takes the following scheme:

[0006] An extensible packaging buffer, characterized by: including a paper sheet, when the paper sheet is in an original state, the paper sheet has a plurality of slits, the slits include tail wings and wing tips, the tail wings include left tail wings and right tail wings, the left tail wings and the right tail wings are connected through the wing tips, at least one of the left tail wings and the right tail wings is a curved graph, and each row of the slits is parallel and aligned in columns.

[0007] Further, the four tail wing ends adjacent to each other among the three staggered columns can be connected by an imaginary connecting line, and the position between the connecting line and the four tail wings is a wing.

[0008] Further, the inclination angle between the left tail wing or the right tail wing and the wing tip is 15°-90°.

[0009] Furthermore, the left and right tail fins are symmetrical.

[0010] Furthermore, the left and right tail fins are asymmetrical.

[0011] Furthermore, the left and right tail wings are centrally symmetrical with the wingtips as the center of symmetry.

[0012] Furthermore, when the paper sheet is in an expanded state, the wings move upward or bend relative to the original plane, creating a joint.

[0013] Furthermore, in the extended state, the two wings can interlock with each other, or one wing can interlock with a connector, creating an interlocking structure.

[0014] Based on the same inventive concept, this utility model also provides a mold that can form an expandable slit for packaging cushioning on a paper sheet.

[0015] Based on the same inventive concept, this utility model also provides a cushioning sheet, which includes an expandable packaging cushioning material.

[0016] By adopting the aforementioned technical solution, the slit is composed of a tail fin and wingtips. At least one of the left and right tail fins is formed by a curved shape. An imaginary connecting line can be drawn between the ends of the four adjacent tail fins in the three staggered rows, and the connecting line and the tail fins together form a wing. In the extended state, the wingtips form a curved inflection point, and the tail fins form a protruding tip, effectively increasing the contact area between the fins or the joint formed after the fins are extended, making them easier to engage, improving the ease of engagement and greatly enhancing the interlocking performance. This ensures a stable connection of the interlocking structure, while significantly increasing the stress area, effectively dispersing pressure, reducing the degree of local stress concentration, greatly improving the buffering effect, and ensuring the buffering effect and interlocking capability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the expandable packaging cushioning provided by this utility model when it is not expanded;

[0018] Figure 2 This is a schematic diagram of the front structure of the expandable packaging cushioning provided by this utility model after expansion;

[0019] Figure 3 This is a schematic diagram of the structure of the back side of the expandable packaging cushioning provided by this utility model after expansion;

[0020] Figure 4 yes Figure 1 Enlarged diagram of B in the diagram.

[0021] The reference numerals in the diagram are: 10 - paper sheet, 20 - slit, 21 - tail fin, 211, a, b, c - left tail fin, 212, d, e, f - right tail fin, 22 - wingtip, 23 - wing, 24 - joint. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. In the following embodiments, the following configuration is provided: Figure 1 The X and Y directions are shown to be perpendicular to each other. These orientations or positional relationships are for the convenience of describing the present invention and for simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The paper sheet has an initial state and an extended state. In the initial state, the paper sheet is a flat plane. In the extended state, the paper sheet is stretched or compressed, causing the wing to move upward or buckle relative to the plane of the initial state. At this time, the slit is opened and a joint is created. The interlocking mentioned in this article refers to the insertion joint of the wing or its engagement with another wing part.

[0026] The angle of inclination mentioned in this article refers to the angle between the tangent at the wingtip of the tail fin and the X-direction when the tail fin is curved, or the angle between the tail fin and the X-direction when the tail fin is a straight line or a broken line. "Left and right tail fins" in this article refers to the left tail fin and / or the right tail fin.

[0027] Example 1

[0028] refer to Figures 1-4 An expandable packaging cushioning includes a paper sheet 10 having a plurality of slits 20, each slit 20 including a tail fin 21 and a wingtip 22, the tail fin including a left tail fin 211 and a right tail fin 212, the left tail fin and the right tail fin being connected by the wingtip 22.

[0029] Specifically, at least one of the left tail fin 211 and the right tail fin 212 is a curved shape. In this embodiment, both the left and right tail fins are curved shapes, specifically in the form of arcs. The tilt angle between the left and right tail fins and the wingtips is 30°.

[0030] It is understood that the tilt angle between the tail fin and the wingtip in this utility model is not limited, and can be 15°, 20°, 25°, 30°, 45°, 60°, 75°, 85° or even 90°. This tilt angle will only affect the shape of the slit 20 after it is stretched, and will not have a significant impact on the buffering effect.

[0031] It is understood that in this embodiment, the left tail fin 211 and the right tail fin 212 can be symmetrical or asymmetrical, and their shape and length are not limited. They can be symmetrical or asymmetrical, or they can be centrally symmetrical about the wingtip 22. In this embodiment, the left and right tail fins are axially symmetrical about the straight line in the Y direction where the wingtip 22 is located.

[0032] The slits 20 are staggered, specifically, arranged in rows in the horizontal direction X and columns in the vertical direction Y. Each row of slits is parallel and every other column is aligned. In this embodiment, in the two staggered columns, the position of the left tail fin 211 in one column corresponds exactly to the center position of the right tail fin in the other column 212, achieving a better interlocking effect.

[0033] It is understood that the slits are aligned with every other column, but there is no restriction on the number of columns between them; they can be separated by one, two, three, etc. In this embodiment, the slits are aligned with every other column. It is understood that the fewer columns the staggered slits are separated from each other, and the more they intersect, the better the interlocking structure formed between different rows.

[0034] Specifically, an imaginary connecting line A can be made between the ends of the four adjacent tail fins in the three staggered rows, and the position enclosed between the connecting line A and the tail fin 21 forms the wing 23.

[0035] likeFigure 4 As shown, in this embodiment, the three staggered rows of tail fins are labeled as left tail fin a, left tail fin b, and left tail fin c, and right tail fin d, right tail fin e, and right tail fin f. Left tail fin a and left tail fin c are positioned correspondingly, and right tail fin e is located between left tail fins a and c, with its end point corresponding to the midpoint between left tail fins a and c. Right tail fin d and right tail fin c are positioned correspondingly, and left tail fin b is located between right tail fins d and f, with its end point corresponding to the midpoint between right tail fins d and f. An imaginary connecting line A connects left tail fin a and right tail fin e, left tail fin c and right tail fin e, right tail fin d and left tail fin b, and right tail fin f and left tail fin b.

[0036] like Figure 2 As shown, when in use, the paper sheet 10 is stretched to expand, so that the slit 20 is opened, and the left tail wing 211, right tail wing 212 and wingtip 22 deviate from the plane in which the paper sheet 10 is located in its original state, thereby causing the wing 23 of the paper sheet to move upward or bend relative to the plane in its original state, thus creating the joint 24.

[0037] Specifically, after the paper sheet 10 expands, when it is wrapped around the product or placed directly adjacent to itself, the wing 23 partially embeds into the connector 24, achieving interlocking between the wing 23 and the connector 24 and creating an interlocking structure. In other possible implementations, two wings 23 may lock into each other, or the wing 23 may interlock with the connector 24. Interlocking can occur between wings 23 at different positions on a single paper sheet 10, or between wings 23 and the connector 24, or between two or more paper sheets 10.

[0038] Understandably, when external force is applied to the packaging cushioning material, the interlocking structure will experience the highest force concentration. Compared to traditional slotted paper, the paper sheet in this patent, due to its special shape, expands the contact area. The wingtips form bending inflection points, and the tail wing forms protruding tips, making it easier for the wings or wing and the joint to engage, improving the ease of engagement, greatly enhancing the interlocking performance, and ensuring a stable connection of the interlocking structure. At the same time, it significantly increases the stress-bearing area, effectively dispersing pressure, reducing the degree of local stress concentration, and greatly improving the cushioning effect.

[0039] This embodiment also provides a mold that can form a slit structure of the expandable packaging cushioning paper in the embodiment on the paper sheet. Specifically, the production mold includes a paper cutting roller with multiple cutting edges on the surface of the paper cutting roller for forming slits, so that the paper sheet forms the slit structure after being pressed by the paper cutting roller.

[0040] This embodiment also provides a cushioning sheet, which includes the expandable packaging cushioning material described in the embodiment.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. An expandable packaging cushion, characterized by: A paper sheet comprising a plurality of slits, each row of slits being parallel, each pair of columns of slits being aligned, each slit comprising a tail and a tip, the tail comprising a left tail and a right tail, the left tail and the right tail being connected by the tip, at least one of the left tail and the right tail being a curved figure.

2. The expandable packaging dunnage of claim 1, wherein: An imaginary connecting line can be drawn between the ends of four of the tails that are adjacent to each other, the connecting line being a wing.

3. The expandable packaging dunnage of claim 1, wherein: The angle between the left tail or the right tail and the tip is between 15° and 90°.

4. The expandable packaging dunnage of claim 1, wherein: The left tail and the right tail are symmetric figures.

5. The expandable packaging dunnage of claim 1, wherein: The left tail and the right tail are asymmetric figures.

6. The expandable packaging dunnage of Claim 4, wherein: The left tail and the right tail are centrosymmetric with the tip as the center of symmetry.

7. The expandable packaging dunnage of claim 1, wherein: When the paper sheet is in an expanded state, the wings are moved or flexed upward relative to the plane of the original state, creating a hinge.

8. The expandable packaging dunnage of Claim 7, wherein: In the expanded state, two of the wings can interlock with each other, or one of the wings can interlock with one of the hinges, creating an interlocking structure.

9. A mold characterized by: The mold can form the slits of the expandable packaging cushion of any one of claims 1-8 on the paper sheet.

10. A cushioning sheet characterized by: The cushion sheet comprises the expandable packaging cushion of any one of claims 1-8.

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