A multi-layer composite thermoforming device for bulletproof fibers

By designing a multi-layer composite hot-pressing molding device for bulletproof fibers and employing precise temperature control and pre-leveling technology, the problems of fiber layer warping and corner deformation were solved, achieving efficient and safe fiber layer fusion and molding, thus improving product quality and safety.

CN224426820UActive Publication Date: 2026-06-30NANTONG HENGSHANG NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG HENGSHANG NEW MATERIAL TECH CO LTD
Filing Date
2025-07-29
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing thermoforming equipment is prone to localized edge curling and corner deformation of the fiber fabric when processing multi-layer bulletproof fibers, resulting in uneven product quality. Furthermore, the harmful gases generated during the thermoforming process are not dealt with in a timely manner, affecting safety and efficiency.

Method used

A multi-layer composite hot-pressing molding device for bulletproof fibers was designed. It adopts a C-shaped base, a stainless steel hot press table, a ceramic heat insulation plate, an aluminum alloy pressure plate, and an air extraction structure. Through precise temperature control, pre-leveling, and rapid cooling, it ensures uniform fusion of fiber layers and safe air exhaust, and avoids direct contact between the hot press table and uneven fiber layers.

Benefits of technology

It significantly improves the processing efficiency and product consistency of bulletproof fibers, reduces bubbles and delamination defects, ensures a safe working environment, and enhances the bonding quality and molding efficiency of fiber layers.

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Abstract

This utility model relates to the technical field of hot pressing molding devices, and more particularly to a multi-layer composite hot pressing molding device for bulletproof fibers. It includes a base, which has a C-shaped structure. A support platform is fixedly installed on the inner bottom of the base. A bent pipe is embedded in the upper end of the support platform. Cold water inlet and outlet are respectively provided at both ends of the bent pipe. A storage platform covers the upper end of the bent pipe. Support strips are also fixed to the surface of the support platform, and are staggered with the bent pipe, providing fixed support to the storage platform. This solution significantly improves the processing efficiency and product consistency of bulletproof fibers through a multi-layer composite hot pressing molding design. The hot pressing platform has an embedded heating element and is precisely temperature-controlled by a temperature control switch, ensuring stable hot pressing temperature and avoiding uneven bonding between fiber layers or localized overheating damage caused by temperature fluctuations. The stainless steel hot pressing platform has uniform heat conduction, and combined with the pushing pressure of cylinder one, the fiber layers are fully fused under constant temperature and high pressure, reducing bubbles or delamination defects.
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Citation Information

Patent Citations

  • Multi-layer composite fiber paper hot press molding device

    CN221985984U