Multi-tow carbon fiber broadening preimpregnation system

Abstract

The invention provides a multi-tow carbon fiber broadening preimpregnation system, which is used for solving the technical problems of large thickness, high porosity and the like of a prepreg tape product caused by low broadening ratio and insufficient preimpregnation in the existing thermoplastic prepreg tape production process. The device comprises a wire releasing module, a wire doubling module, an airflow broadening module, a process deviation rectifying module, a traction module, a slurry dipping module, an infrared melting module, a hot-pressing shaping module, a floating roller module, a cutting module, a rim charge collecting module, a winding deviation rectifying module and a winding module which are sequentially arranged in the feeding direction. The yarn releasing module comprises at least two yarn releasing assemblies, and carbon fibers are placed on the yarn releasing assemblies. According to the invention, the airflow method is adopted to realize non-damage broadening of the carbon fiber, and the powder slurry method is adopted to realize full preimpregnation of the broadened carbon fiber by the resin, so that the thin and high-performance thermoplastic carbon fiber prepreg tape is produced, and the designability of a thermoplastic prepreg tape laying layer and the mechanical property of a thermoplastic composite product are improved.

Description

technical field [0001] The invention relates to the technical field of carbon fiber composite material processing, in particular to a multi-tow carbon fiber widening prepreg system. Background technique [0002] In recent years, in response to the ever-expanding energy and air pollution crises, countries around the world have successively proposed development plans for fuel vehicles. my country has proposed new fuel consumption standards for fuel vehicles and vigorously promoted new energy electric vehicles. Therefore, reducing energy consumption has become an important issue facing the automobile manufacturing industry, and automobile lightweight is an important way to solve this problem. After years of development, there are three main ways to reduce the weight of automobiles: structural optimization design, molding manufacturing process optimization, and material weight reduction. Among them, the lightweight of materials is to replace high-density materials with low-den...

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Problems solved by technology

[0006] Aiming at the technical problems of large thickness and high porosity of prepreg products caused by low spread ratio and insufficient prepreg in the existing production process of thermoplastic prepreg tapes, the present invention proposes a multi-tow carbon fiber wide spread prepreg system, which adopts The airflow method realizes the widening of carbon fibers without damage, and the powder slurry method is used to realize the full pre-pregnancy of the widened carbon fibers with resin, so as to produce thin, high-performance thermoplastic carbon fiber prepreg tapes, improve the designability of thermoplastic prepreg tape layup and thermoplastic compounding Mechanical properties of material products

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