A device for expanding fiber bundles and its process method

Abstract

The invention provides equipment and technological method for expansion of fiber bundles. The equipment is characterized by comprising an unwinding device, an expansion slot system, a traction and drying device and a winding device; the unwinding device comprises a damping controller, a tension monitoring device and no less than two reels; the expansion slot system comprises a fluid bath, a hoisting frame and a plurality of ultrasonic emitters. The technological method is characterized by comprising the steps that multiple tow plates are sequentially installed on the reels of the unwinding device; tows are led out of the tow plates respectively; the stroke of the tows in the fluid bath of the expansion slot system is determined according to the expansion width of the tows; a roller rack is placed in the fluid bath; the tows are wound around a medium-frequency heating roller and a traction device, penetrate through a deviation rectifier and are connected to the winding device; the equipment operates on trial, the tension of each tow bundle is kept within a standard range, and the equipment operates normally. Carbon fiber bundles become thinner after being processed through the equipment. Meanwhile, the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of industrial fiber processing equipment, in particular to an equipment for expanding fiber bundles and a process method thereof. Background technique [0002] With the development and maturity of high-tech manufacturing industries such as aerospace, wind power, and new automobiles, related material application technologies such as carbon fiber material technology have also made great progress and are widely used. In practical application, because the price of large tow carbon fiber, such as 48K, 60K or even 360K, 480K, is much cheaper than that of small tow, the price of large tow is only 50%-60% of that of small tow, so it is more It is easy to be accepted by producers, but because the large-tow carbon fiber has the phenomenon of twists and kinks of the fiber as the number of fiber bundles increases, and the resin matrix is ​​not easy to infiltrate into the inside of the large-tow fiber bundle, it is easy to occur b...

AI Technical Summary

Problems solved by technology

The mechanical properties of carbon fiber spread by this method are greatly reduced, and it is easy to cause wear to the fiber tow, which seriously affects the use of carbon fiber. At the same time, this method is slower and less efficient.

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