Hot-melt bonding processing system and technology of environment-friendly multi-layer fiber composite felt

Abstract

The invention discloses a hot melting bonding processing system and process of environment-friendly multilayer fiber composite felt. The system comprises a plurality of parallel fiber net generating devices which are connected with a baking oven through a bottom curtain, the bottom curtain is arranged below the fiber net generating devices and provided with driving structures, and the baking oven passes through a hot pressing device and extends to winding devices. Cloth guide rollers and supporting conveying rollers are arranged in the baking oven, wherein the cloth guide rollers are used for winding a plurality of fiber nets fed by the bottom curtain into an S shape. The hot pressing device is a pair of heating pressurizing rotating rollers. Each fiber net generating device comprises an opening device, a combing device and a lapping device, wherein the opening device, the combing device and the lapping device are sequentially connected. The continuous strip-shaped multilayer fiber composite felt is produced in a one-time stacking lapping and hot melting bonding mode, follow-up forming is conveniently conducted, and the production automation degree is improved. In the multilayer fiber composite felt, components, performance and thickness of any layer can be different from components, performance and thickness of another layer, and all layers and positions between all the layers are formed in a low-melting-point skin core type fiber hot melting bonding mode.

Description

technical field [0001] The invention relates to a multi-layer fiber composite material felt, in particular to an environment-friendly hot-melt bonding processing system and technology for multi-layer fiber composite material felt, and belongs to the field of fiber composite material preparation. Background technique [0002] At present, the fibers used in the production of fiber composite mats are mostly chemical synthetic materials. The obvious disadvantage is that the natural resources required for the preparation of these materials are limited, non-renewable, and pollute the environment during processing and use. At the same time, with the development of composite mats in modern industry towards light weight, high strength, environmental protection and recyclability, various natural fibers have been further recognized and entered the field of fiber composite mat production. [0003] Some natural fibers such as hemp fiber and palm fiber are used as heat insulation, sound i...

AI Technical Summary

Problems solved by technology

Most of the current fiber mats are obtained as independent massive rectangular fiber mats in the preparation stage, which lacks the integrated planning of composite material preparation and molding processing, which is not conducive to the automatic continuous molding processing in the later stage, and also limits the product size.

At the same time, the surface layer and core layer of the sandwich fiber mat are mostly prepared separately and then combined by mechanical methods such as acupuncture. On the one hand, the automation of each layer is relatively low and the cost of manpower and electricity is increased; on the other hand, mechanical compounding will Cause the fibers of the surface layer to extend into the core layer, and also pull the fibers of the core layer into the surface layer

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