Design method of lightweight three-layer structure of coir mattress

A technology of three-layer structure and design method, applied in the direction of mattresses, spring mattresses, design optimization/simulation, etc., can solve the problems of excess brown mattress materials and increase the production cost of brown mattresses

Active Publication Date: 2020-02-21
GUIZHOU DAZIRAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And this will actually cause a surplus of materials used in brown mattresses, increasing the production cost of brown mattresses

Method used

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  • Design method of lightweight three-layer structure of coir mattress
  • Design method of lightweight three-layer structure of coir mattress
  • Design method of lightweight three-layer structure of coir mattress

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Example 1. A design method for a lightweight three-layer structure of a palm mattress, the design method is as follows:

[0069] The brown mattress with a length of 2000mm, a width of 1800mm and a thickness of 160mm is divided into three layers. Wherein the thickness of the mattress layer is 4 times of the thickness of the upper mattress layer, and the thickness of the lower mattress layer is 3 times of the thickness of the middle mattress layer. The thickness of the upper mattress layer is 10mm, the thickness of the middle mattress layer is 40mm, and the thickness of the lower mattress layer is 120mm.

[0070] Firstly, use ANSYS software to establish the mountain palm material model of the mattress. Using the method of finite element solution, the brown mattress model corresponding to the length, width and thickness is established with the brown material model. Then apply human body load on the brown mattress model, the area of ​​the load is 1700mm×800mm, and the we...

Embodiment 2

[0073] Example 2. A design method for a lightweight three-layer structure of a brown mattress, the model building method and the stress deformation test method of the present embodiment are the same as the embodiment 1. Wherein, the underwinding values ​​of the upper, middle and lower mattress layers are selected on the plane where the stress center of the mattress layer is located, and a deflection value within 7mm from the stress center of the mattress layer is selected as the downdeflection value. Wherein the thickness of the mattress layer is 3 times of the thickness of the upper mattress layer, and the thickness of the lower mattress layer is 2.5 times of the thickness of the middle mattress layer. Use the deflection values ​​of the upper, middle and lower mattress layers to set the density of the mattress layer. The value of k is 78 to calculate the design density of the upper, middle and lower mattress layers.

[0074] Promptly by the present invention, the palm mattress...

Embodiment 3

[0075] Example 3. A design method for a lightweight three-layer structure of a brown mattress, the model building method and the stress deformation test method of the present embodiment are the same as the embodiment 1. Among them, the underwinding values ​​of the upper, middle and lower mattress layers are selected on the plane where the stress center of the mattress layer is located, and a deflection value within 3mm from the stress center of the mattress layer is selected as the downdeflection value. Wherein the thickness of the mattress layer is twice the thickness of the upper mattress layer, and the thickness of the lower mattress layer is twice the thickness of the middle mattress layer. Use the deflection values ​​of the upper, middle and lower mattress layers to set the density of the mattress layer. The value of k is 83 to calculate the design density of the upper, middle and lower mattress layers.

[0076] Promptly by the present invention, the palm mattress that i...

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Abstract

The invention discloses a design method of a lightweight three-layer structure of a coir mattress. The method comprises the following steps of designing a coir mattress into an upper mattress layer, amiddle mattress layer and a lower mattress layer; establishing a coir mattress model, applying a human body load on the coir mattress model, carrying out stress deformation analysis, measuring the deflection values of upper, middle and lower mattress layers in the coir mattress model, and setting the density of each mattress layer according to the deflection values of the upper, middle and lowermattress layers to obtain the lightweight three-layer structure of the coir mattress. Through the design, the total density of the coir fiber mattress can be reduced, the use amount of mattress materials is saved, and the production cost is reduced. According to the designed light three-layer structure of the coir mattress, on the basis that the total density of the coir mattress is reduced, the quality not only meets the national standard, but also can reach the level of an existing product, when the lightweight three-layer structure of the coir mattress is designed, the convenience and quickness are achieved, the total density of an existing coir mattress is reduced, the cost is greatly reduced, and the market potential is large.

Description

technical field [0001] The invention relates to the field of brown mattress design, in particular to a design method for a lightweight three-layer structure of a brown mattress. Background technique [0002] Palm mattress materials include mountain palm, coconut shell, etc., all of which are plant fiber elastic materials. CN90100464.2 discloses a production method of plant fiber elastic material that can be used to produce brown mattresses. After crimping, brown silk (palm fiber) is blown into a three-dimensional distribution with airflow and then sprayed with glue, so that the nodes between the brown silk are bonded The brown silk elastic sheet is obtained, and then the brown silk elastic sheet is stacked to obtain a layered brown silk elastic material. The brown silk elastic material is bonded with latex, pressed into sheets, hot-pressed and vulcanized. Brown mattresses can be made. [0003] Judging from the current domestic and foreign research on mattresses made of pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20A47C27/12G06F111/10
CPCA47C27/12
Inventor 黄龙廖廷茂夏鑫徐毅张丽影
Owner GUIZHOU DAZIRAN TECH
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