A pearl cotton composite cushioning structure

Abstract

This utility model discloses a composite cushioning structure made of pearl cotton. The device includes: a pearl cotton body, a cavity in the middle layer of the pearl cotton body, a plurality of annular corrugated plates arranged in a regular array within the cavity, a plurality of elastic cushioning protrusions arranged in a regular array at the upper end of the pearl cotton body, and corrugated cardboard at the lower end of the pearl cotton body. The advantage of this utility model is that the annular corrugated plates and elastic cushioning protrusions are arranged in a "regular array." This design forms a highly efficient force transmission network, which can quickly transform external impact forces from point contact to surface contact, and orderly guide and disperse them throughout the entire structure, completely avoiding stress concentration, preventing localized crushing failure, and greatly improving the reliability and consistency of cushioning.

Description

Technical Field

[0001] This utility model belongs to the field of packaging material technology, specifically relating to a pearl cotton composite cushioning structure. Background Technology

[0002] EPE (Expanded Polyethylene) cushioning structures are widely used in product packaging protection, and their performance directly affects the safety of the contents during transportation. In existing technologies, most EPE cushioning structures are made of a single material or are simply layered composites, exhibiting a significant drawback: when subjected to external impact, the internal stress cannot be effectively guided and evenly distributed, causing the impact force to concentrate at localized points. This easily leads to excessive compression or even rupture of the material in those areas, resulting in cushioning failure. This uneven stress distribution problem makes traditional structures insufficiently reliable in the face of severe or repeated impacts, failing to meet the precision protection requirements of high-value, highly vulnerable products.

[0003] Therefore, there is an urgent need to provide a pearl cotton composite cushioning structure to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a pearl cotton composite cushioning structure to solve the technical problem that most pearl cotton cushioning structures are made of a single material or are simply layered composites, and their internal stress cannot be effectively guided and evenly dispersed when subjected to external impact.

[0005] To solve the above-mentioned technical problems, this utility model provides a pearl cotton composite cushioning structure, including: a pearl cotton body, a cavity in the middle layer of the pearl cotton body, a plurality of annular corrugated plates arranged in a regular array in the cavity, a plurality of elastic cushioning protrusions arranged in a regular array at the upper end of the pearl cotton body, and corrugated cardboard at the lower end of the pearl cotton body.

[0006] As further explained, some of the aforementioned annular corrugated plates are made of polymer plastic, and the cross-section of some of the aforementioned annular corrugated plates is honeycomb-shaped.

[0007] As further explained, several of the aforementioned annular corrugated boards are bonded to the pearl cotton body using localized dotted hot melt adhesive.

[0008] As further explained, the pearl cotton body and the corrugated cardboard are bonded together by full-coverage spraying of adhesive.

[0009] As further explained, a layer of high-density polyethylene film is formed on the upper surface of the pearl cotton body through co-extrusion composite molding.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. In this design, the annular corrugated plate and elastic buffer protrusions are arranged in a "regular array". This design forms an efficient force transmission network that can quickly transform external impact forces from point contact to surface contact and guide and disperse them in an orderly manner throughout the entire structure, completely avoiding stress concentration, preventing local crushing failure, and greatly improving the reliability and consistency of the buffer.

[0011] 2. The structure features a scientifically designed energy dissipation pathway: the elastic buffer protrusions at the top deform first, absorbing the initial impact and dispersing the pressure; the hollow honeycomb-shaped annular corrugated plate then undergoes orderly elastic deformation and even microscopic crushing through its structure, efficiently dissipating most of the impact energy; the bottom corrugated cardboard provides the final rigid support and bending strength. This synergistic effect provides comprehensive protective performance far exceeding that of any single material.

[0012] 3. The method of partial point-bonding of corrugated board ensures a strong connection without restricting its deformation freedom; the overall adhesive spraying ensures the peel strength of the underlying composite and prevents delamination. The co-extruded high-density polyethylene film further enhances the overall structure's moisture resistance, tear resistance, and abrasion resistance, extending its service life.

[0013] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a preferred three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the annular wave plate of this utility model; Figure 3 This is a utility model Figure 2 A schematic diagram of the cross-sectional structure at point A.

[0017] In the picture: 1. Pearl cotton body, 2. Cavity, 3. Circular corrugated board, 4. Elastic cushioning protrusions, 5. Corrugated cardboard. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. 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.

[0019] Reference Figure 1-3 A composite cushioning structure made of pearl cotton includes: a pearl cotton body 1, a cavity 2 in the middle layer of the pearl cotton body 1, a plurality of annular corrugated plates 3 arranged in a regular array within the cavity 2, a plurality of elastic cushioning protrusions 4 arranged in a regular array at the upper end of the pearl cotton body 1, and corrugated cardboard 5 at the lower end of the pearl cotton body 1. By setting a cavity 2 in the middle layer of the pearl cotton body 1 and arranging the annular corrugated plates 3 in a regular array within the cavity 2, the special shape and arrangement of the annular corrugated plates 3 are used to change the transmission path of the impact force. When subjected to external impact, the annular corrugated plates 3 can deform, absorbing part of the impact energy and dispersing the impact force to the surrounding area. The elastic cushioning protrusions 4 at the upper end of the pearl cotton body 1 can further buffer and disperse the impact force when the product comes into contact with the cushioning structure, reducing the direct impact on the product. The corrugated cardboard 5 at the lower end provides additional support and stability, enhancing the strength of the entire cushioning structure. This design combines the softness and elasticity of pearl cotton, the deformation and energy absorption of the annular corrugated plate 3, and the localized cushioning of the elastic buffer protrusions 4 to form a multi-layered cushioning system that can effectively cope with impacts from different directions and intensities. It meets the precision protection needs of high-value, highly vulnerable products.

[0020] like Figure 1-3 As shown, several annular corrugated plates 3 are made of polymer plastic, and the cross-section of the several annular corrugated plates 3 is honeycomb-shaped. Polymer plastic has high strength and toughness, and can undergo large deformation without breaking when subjected to impact. The honeycomb structure has unique mechanical properties. When subjected to external force, the honeycomb wall will bend and deform, dispersing the impact force in all directions. At the same time, the cavities of the honeycomb structure can also absorb some energy.

[0021] like Figure 1-3As shown, several annular corrugated plates 3 are bonded to the pearl cotton body 1 using localized dot-matrix hot melt adhesive. This localized dot-matrix bonding method reduces the amount of adhesive used while providing some room for movement for the annular corrugated plates 3, ensuring connection strength. When subjected to impact, the annular corrugated plates 3 can undergo relative movement and deformation within a localized area, better fulfilling their role in absorbing energy and dispersing stress.

[0022] like Figure 1-3 As shown, the EPE foam body 1 and the corrugated cardboard 5 are bonded together by full-coverage adhesive spraying. Full-coverage adhesive spraying ensures a tight and uniform bond between the two, guaranteeing no gaps between the corrugated cardboard 5 and the EPE foam body 1. This allows the corrugated cardboard 5 to work more effectively with the EPE foam body 1 during impacts, jointly bearing and dispersing the impact force. Simultaneously, the strength of the corrugated cardboard 5 provides support for the EPE foam body 1, preventing excessive deformation and improving the overall integrity and stability of the cushioning structure.

[0023] like Figure 1-3 As shown, a high-density polyethylene film is co-extruded onto the upper surface of the EPE foam body 1. The high-density polyethylene film possesses high hardness, abrasion resistance, and moisture resistance. The co-extrusion process tightly bonds the high-density polyethylene film to the EPE foam body 1, forming a unified whole. This film protects the EPE foam body 1 from external environmental corrosion during transportation and storage, preventing moisture penetration that could degrade its performance. It also reduces surface wear, maintaining the appearance and performance of the cushioning structure.

[0024] All components selected in this application (parts whose specific structures are not described) are general standard parts or parts known to those skilled in the art, and their structures and principles can be obtained by those skilled in the art through technical manuals. This knowledge can be obtained through conventional experimental methods.

[0025] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0026] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0027] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pearl cotton composite cushioning structure, characterized in that, include: The pearl cotton body (1) has a cavity (2) in the middle layer, and a number of annular corrugated plates (3) arranged in a regular array inside the cavity (2). The upper end of the pearl cotton body (1) has a number of elastic buffer protrusions (4) arranged in a regular array, and the lower end of the pearl cotton body (1) has corrugated cardboard (5).

2. The pearl cotton composite cushioning structure as described in claim 1, characterized in that, Some of the annular corrugated plates (3) are made of polymer plastic, and the cross-section of some of the annular corrugated plates (3) is honeycomb-shaped.

3. The pearl cotton composite cushioning structure as described in claim 2, characterized in that, Several of the aforementioned annular corrugated plates (3) are bonded to the pearl cotton body (1) by localized dotted hot melt adhesive.

4. The pearl cotton composite cushioning structure as described in claim 1, characterized in that, The pearl cotton body (1) and the corrugated cardboard (5) are bonded together by full-coverage spray adhesive.

5. The pearl cotton composite cushioning structure as described in claim 1, characterized in that, The upper surface of the pearl cotton body (1) is coated with a layer of high-density polyethylene film through co-extrusion composite molding.

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