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Bulletproof helmet body and preparation method thereof

A bulletproof helmet and helmet body technology, which is applied in protective equipment, offensive equipment, personnel protection equipment, etc., can solve the problems of fiber strength loss, large helmet body mass, and affecting soldiers' tactical actions, so as to improve impact resistance and production The effect of cost reduction

Active Publication Date: 2012-12-05
THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of metal bulletproof helmets is that the quality of the helmet body is relatively large, and it is not flexible to wear, which seriously affects the performance of soldiers' tactical actions.
However, using high-performance fibers, such as aramid fibers or ultra-high molecular weight polyethylene fibers, to obtain fabric-made bulletproof helmets through mechanical weaving, the mechanical properties of the fibers are greatly affected by the shuttle of the rapier during the weaving process, so that the strength of the fibers is affected. A certain loss, which affects the ballistic performance of the helmet product

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Bulletproof helmet body and preparation method thereof
  • Bulletproof helmet body and preparation method thereof
  • Bulletproof helmet body and preparation method thereof

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preparation example Construction

[0033] The method for preparing the body of a bulletproof helmet provided by the invention specifically comprises the following steps:

[0034] (1) Weaving of multi-axial warp knitted fabric covered with film

[0035] The para-aramid yarn and the nylon stitching thread are respectively braided according to the preset braiding angle, weaving sequence, stitching thread spacing and braiding chain length to obtain a sheet-shaped multi-axial warp knitted fabric. Then the warp knitted fabric and the release paper covered with phenolic resin-acrylic resin film pass through the hot pressing roller, and the adhesive film is transferred to the surface of the single-layer fabric by the hot pressing roller to obtain a multiaxial Para-aramid tricot.

[0036] (2) Helmet body molding method

[0037] The woven lamellar para-aramid fabric is placed between the concave and convex molds of the mold after being cut and stacked according to the size of the helmet mold. Start the four-column hyd...

Embodiment 1

[0039] (1) Weaving of multiaxial warp knitted fabrics

[0040] (1) Machine parameters

[0041] Equipment: multi-axial warp knitting machine; width: 1.27m; with weft yarn insertion system and reinforcing fiber insertion device

[0042] (2) Raw material (basic fabric)

[0043] Diagonal interlining +45°: 1000D para-aramid (also known as polyparaphenylene terephthalamide fiber) fabric

[0044] Inserted weft yarn 90°: 1000D para-aramid (also known as polyparaphenylene terephthalamide fiber) fabric

[0045] Diagonal Lining Yarn-45°: 1000D para-aramid (also known as polyparaphenylene terephthalamide fiber) fabric

[0046] Sewing Thread: 40D Nylon

[0047] (3) Organization

[0048] Ground organization: braided chain

[0049] Weaving sequence: reinforced fiber / +45° / 90° / -45° / /

[0050] (4) Fabric parameters

[0051] The distance between the stitching lines: 3mm, the length of the braided chain: 2mm; the surface density of each layer of lamellar warp knitted fabric is 250g / m 2 ;To...

Embodiment 2

[0060] (1) Weaving of multiaxial warp knitted fabrics

[0061] (1) Machine parameters

[0062] Equipment: multi-axial warp knitting machine; width: 1.27m; with weft yarn insertion system and reinforcing fiber insertion device

[0063] (2) Raw material (basic fabric)

[0064] Bias lining +45°: 600D para-aramid fabric

[0065] Bias lining -45°: 1000D ultra-high molecular weight polyethylene fiber fabric

[0066] Sewing thread: 80D ultra-high molecular weight polyethylene fiber

[0067] (3) Organization

[0068] Ground organization: braided chain

[0069] Weaving sequence: reinforced fiber / +45° / -45° / /

[0070] (4) Fabric parameters

[0071] The distance between the stitching lines: 7mm, the length of the braided chain: 5mm; the surface density of each layer of lamellar warp knitted fabric is 200g / m 2 ;Total surface density of lamellar fabric: 500g / m 2 ;

[0072] The para-aramid yarn and the nylon stitching thread are respectively braided according to the preset braiding...

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Abstract

The invention discloses a bulletproof helmet body and a preparation method thereof. The preparation method for the bulletproof helmet comprises the following steps of: after yarns are weaved into lamella-shaped warp knitted fabric, the obtained lamella-shaped warp knitted fabric and release paper covered with a glue film are subjected to hot pressing to obtain cutting characterized in that the glue film is coated between layers; and the obtained cut lamella-shaped warp knitted fabric coated with the glue film is arranged in a helmet-shaped mould to be subjected to mould pressing to obtain the bulletproof helmet body. According to the novel bulletproof helmet body, because the advanced multi-axial warp knitted technology and the advanced shuffling technology are adopted on the structural design of the helmet body material, the bulletproof helmet body disclosed by the invention has a better impact resistance if being compared with the helmet body with the same material. The bulletproof helmet body has the characteristics of light weight, high strength, good impact resistance, low cost and the like.

Description

technical field [0001] The invention relates to a bulletproof helmet body and a preparation method thereof. Background technique [0002] In terms of the antagonism of war, bulletproof equipment is an inevitable product that accompanies bullet weapons. At present, conventional weapons are developing rapidly, and the threat level to individual soldiers is gradually increasing. In order to improve the bulletproof survivability and battlefield mobility of individual soldiers, it is necessary to develop a lightweight and efficient bulletproof composite material system. [0003] The disadvantage of metal bulletproof helmets is that the quality of the helmet body is large, and it is not flexible to wear, which seriously affects the performance of soldiers' tactical actions. However, using high-performance fibers, such as aramid fibers or ultra-high molecular weight polyethylene fibers, to obtain fabric-made bulletproof helmets through mechanical weaving, the mechanical properties...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/26D04B21/00B29C43/20F41H1/04
Inventor 张建春马天张涛谈昆仑刘黎明张华郝新敏高鹏刚沈凤川
Owner THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME
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