Double-layer molded pulp with buffering effect

Abstract

The utility model discloses a double-layer molded pulp with a buffering effect, which comprises a double-layer structure consisting of an inner layer and an outer layer, the rigidity of the inner layer is greater than that of the outer layer, and the elastic deformation capacity of the outer layer is greater than that of the inner layer; a placement fixing groove is formed in the surface of the inner layer and is used for accommodating a packaged article; a porous structure is arranged in the outer layer, and a fixing groove matched with the outer surface of the placement fixing groove in shape is formed in the surface of the outer layer; a flange is arranged on the edge of the periphery of the outer layer, a protective edge is arranged on the periphery of the inner layer, and the protective edge covers the surface of the flange. According to the double-layer molded pulp with the buffering effect, the buffering capacity is greatly improved through the outer layer, and valuable and fragile objects are effectively protected against impact damage in the transportation process; and the outer layer adopts a porous structure, so that the overall weight is effectively controlled under the condition that the buffering effect is achieved, and the transportation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of packaging materials technology, specifically to a double-layer pulp molding with a cushioning effect. Background Technology

[0002] In the current packaging industry, pulp molding is widely used as an environmentally friendly and biodegradable packaging material. Especially for fragile items such as electronic products and glassware, pulp molding products are gradually becoming a substitute for traditional foam packaging materials due to their lightweight, low cost, and ease of processing.

[0003] Currently, the most widely used structure is still the single-layer pulp molding structure. Through the pulp molding process, an inner liner is formed that conforms to the shape of the item to be packaged, providing a certain degree of cushioning and protection. However, single-layer pulp molding still has some shortcomings in practical applications, such as insufficient cushioning performance, susceptibility to deformation under pressure, and poor fixation stability. Utility Model Content

[0004] To address the aforementioned shortcomings, this invention provides a double-layer pulp molding with a cushioning effect, offering better protection for items.

[0005] To achieve the above objectives, the technical solution provided by this utility model is a double-layer pulp molding with a cushioning effect, comprising:

[0006] The double-layer structure consists of an inner layer and an outer layer, wherein the rigidity of the inner layer is greater than that of the outer layer, and the elastic deformation capacity of the outer layer is greater than that of the inner layer.

[0007] The inner layer has a placement and fixing groove on its surface, which is used to accommodate the packaged items.

[0008] The outer layer has a porous structure inside, and the surface of the outer layer has a fixing groove that matches the shape of the outer surface of the fixing groove.

[0009] The outer layer has a flange around its perimeter, and the inner layer has a protective flange around its perimeter, with the protective flange covering the surface of the flange.

[0010] The top of the placement and fixing groove is provided with a limit block, and the surface of the placement and fixing groove is also provided with anti-slip texture.

[0011] Preferably, the porosity of the outer porous structure is 30%-60%, and the pore size is 0.5-2mm.

[0012] Preferably, the horizontal extension width of the flange is 5-15 mm and the thickness is 2-10 mm.

[0013] Preferably, ribs are symmetrically arranged on both sides of the top of the inner layer.

[0014] Preferably, the anti-slip texture adopts a mesh structure or a stripe structure, and the height of the anti-slip texture is 0.5-1.2mm.

[0015] Preferably, the limiting block is flush with the top of the inner layer, and the protrusion height of the limiting block is 1-5mm.

[0016] Preferably, the inner layer and the outer layer are fixedly connected.

[0017] The present invention adopts the above-mentioned technical solution, and its beneficial effects include: this double-layer pulp molding with cushioning effect, by setting an outer layer with greater elastic deformation capacity outside the inner layer, significantly improves the cushioning capacity while ensuring structural strength, effectively protecting valuable and fragile items from impact damage during transportation; the outer layer adopts a porous structure, which not only satisfies the cushioning effect but also achieves effective control of the overall weight, reducing transportation costs; the placement and fixing groove of the inner layer can be customized according to the shape, size and weight of the items to be packaged, meeting different needs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the outer and inner layers of this utility model.

[0021] In the diagram: 1-inner layer, 11-placement and fixing groove, 12-protective edge, 13-limiting block, 14-anti-slip texture, 15-rib, 2-outer layer, 21-fixing groove, 22-flange. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Example 1: Please refer to Figure 1-3 This utility model provides a technical solution: a double-layer pulp molding with a cushioning effect, comprising:

[0024] The inner layer 1 and the outer layer 2 form a double-layer structure. The inner layer 1 and the outer layer 2 are fixedly connected. The rigidity of the inner layer 1 is greater than that of the outer layer 2. The surface of the inner layer 1 is provided with a placement and fixing groove 11, which is used to accommodate the packaged items. The inner layer 1 has a certain rigidity to ensure the wrapping and support of the items.

[0025] The outer layer 2 has a porous structure inside, and the surface of the outer layer 2 has a fixing groove 21 that matches the shape of the outer surface of the fixing groove 11. The fixing groove 21 supports the outside of the fixing groove 11 from all sides, ensuring the protective effect of the fixing groove 11. The elastic deformation capacity of the outer layer 2 is greater than that of the inner layer 1, which improves the elastic deformation of the outer layer 2 to achieve buffering and prevent the internal items from being damaged by impact.

[0026] The outer layer 2 has flanges 22 around its four edges. The horizontal extension width of the flanges 22 is 5-15mm and the thickness is 2-10mm. The flanges 22 and the outer layer 2 are integrally formed during manufacturing. The flanges 22 facilitate hand handling. The inner layer 1 has protective edges 12 around its four edges. The protective edges 12 cover the surface of the flanges 22. The protective edges 12 and the inner layer 1 are integrally formed. The inner layer 1 covering the surface of the flanges 22 prevents the flanges 22 from being dented or deformed at the contact points with the hand during handling.

[0027] A limiting block 13 is provided on the top of the placement fixing groove 11. The limiting block 13 is flush with the top of the inner layer 1. The protrusion height of the limiting block 13 is 1-5mm. This protrusion height is relative to the inner surface of the placement fixing groove 11. The limiting block 13 can effectively fix the item and prevent it from loosening.

[0028] The surface of the mounting groove 11 is also provided with anti-slip texture 14. The anti-slip texture 14 adopts a mesh structure or stripe structure, and the texture height of the anti-slip texture 14 is 0.5-1.2mm. By setting the anti-slip texture 14, the friction between the anti-slip texture and the object is increased, ensuring the stability of the object.

[0029] The limiting block 13 and the anti-slip texture 14 are integrally formed by pressure molding through a mold during the production of the inner layer 1.

[0030] The outer layer 2 has a porous structure with a porosity of 30%-60% and a pore size of 0.5-2mm. The outer layer 2 is processed using the existing pulp molding foaming process, thereby achieving a porous structure.

[0031] Ribs 15 are symmetrically arranged on both sides of the top of the inner layer 1, which improves the bending resistance of the inner layer 1.

[0032] The inner layer 1 and outer layer 2 are made from existing waste paper pulp or renewable fibers, such as bagasse and bamboo fiber, and are manufactured according to existing production processes. After the inner layer 1 and outer layer 2 are processed separately, they are installed together. Then, the protective edge 12 is rolled up to the bottom of the flange 22 and fixed by adhesive bonding to ensure the integrity of the inner layer 1 and outer layer 2.

[0033] This type of double-layer pulp molding, with its cushioning effect, is used in the packaging of fragile or additionally protected items such as electronic products, glassware, ceramic products, and precision instruments. Through its double-layer structure design and the selection of environmentally friendly materials, it achieves both excellent cushioning performance and environmental friendliness.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] The above description is merely a preferred embodiment of the prior art for fixing and installing this utility model, and is not intended to limit this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A double-layer pulp molding with a cushioning effect, characterized in that, include: The double-layer structure consists of an inner layer (1) and an outer layer (2), wherein the rigidity of the inner layer (1) is greater than that of the outer layer (2), and the elastic deformation capacity of the outer layer (2) is greater than that of the inner layer (1). The inner layer (1) has a placement and fixing groove (11) on its surface, which is used to accommodate the packaged items; The outer layer (2) is configured with a porous structure inside, and the surface of the outer layer (2) is provided with a fixing groove (21) that matches the shape of the outer surface of the fixing groove (11); The outer layer (2) has a flange (22) around its perimeter, and the inner layer (1) has a protective flange (12) around its perimeter, with the protective flange (12) covering the surface of the flange (22). The top of the placement and fixing groove (11) is provided with a limiting block (13), and the surface of the placement and fixing groove (11) is also provided with anti-slip texture (14).

2. The double-layer pulp molding with a cushioning effect according to claim 1, characterized in that: The outer layer (2) has a porous structure with a porosity of 30%-60% and a pore size of 0.5-2mm.

3. A double-layer pulp molding material with a cushioning effect according to claim 1, characterized in that: The flange (22) has a horizontal extension width of 5-15 mm and a thickness of 2-10 mm.

4. A double-layer pulp molding material with a cushioning effect according to claim 1, characterized in that: Ribs (15) are symmetrically arranged on both sides of the top of the inner layer (1).

5. A double-layer pulp molding with a cushioning effect according to claim 1, characterized in that: The anti-slip texture (14) adopts a mesh structure or a stripe structure, and the texture height of the anti-slip texture (14) is 0.5-1.2mm.

6. A double-layer pulp molding with a cushioning effect according to claim 1, characterized in that: The limiting block (13) is flush with the top of the inner layer (1), and the protrusion height of the limiting block (13) is 1-5mm.

7. A double-layer pulp molding with a cushioning effect according to claim 1, characterized in that: The inner layer (1) is fixedly connected to the outer layer (2).

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