Composite spinning device and spinning method for covering rigid fiber filaments with chemical fiber filaments

Abstract

The invention provides a composite spinning device and spinning method in which chemical fiber filaments are coated with rigid fiber filaments. The composite spinning device includes a ring spinning frame, and is characterized in that it also includes an unwinding roller, a positioning Yarn guide, tension disc and multi-position yarn guide, the positioning guide is located behind the feeding nip of the front roller pair of the ring spinning frame, and the multi-position yarn guide is located at the front roller pair of the ring spinning frame Front of the output jaw. After the rigid fiber filament unwound from the rigid fiber filament drum passes through the unwinding roller and the positioning yarn guide in sequence, it is fed with the chemical fiber filament unwinding from the chemical fiber filament drum through the tension disc and multiple yarn guides. The two bundles of chemical fiber filaments fed into the front roller pair and then output from the front roller pair converge at the convergence point. At the same time, under the rotation of the spindle of the ring spinning frame, the chemical fiber filaments and rigid fiber filaments are twisted at the convergence point to form a composite yarn. . The invention can solve the problem that the carbon fiber is very brittle, and the bending and brittle fracture of the fiber is very easy to occur during the rewinding and weaving processing.

Description

technical field [0001] The invention relates to a composite spinning device and spinning method in which chemical fiber filaments are coated with rigid fiber filaments. Background technique [0002] Carbon fibers have long been known as fibers suitable as structural materials and reinforcing composite materials. Because carbon fiber has high strength, high modulus, and excellent properties such as light resistance, heat resistance, and corrosion resistance, it is compounded with other materials to strengthen and last. However, carbon fiber is very brittle, and it is very prone to bending and brittle fracture of the fiber during rewinding and weaving processing. Therefore, the commonly used carbon fiber composite materials are firstly preformed and then coated with resin to solidify the structure and composite materials into the desired shape. Due to the bending, friction and other damages in the weaving process, in order to protect the carbon filaments, dipping Glue, oilin...

AI Technical Summary

Problems solved by technology

However, carbon fiber is very brittle, and it is prone to bending and brittle fracture of the fiber during rewinding and weaving.

Therefore, the commonly used carbon fiber composite materials are firstly preformed and then coated with resin to solidify the structure and composite materials into the desired shape. Due to the bending, friction and other damages in the weaving process, in order to protect the carbon filaments, dipping Gluing, oiling and other methods, but the effect is general, and there are also reports of using filaments to coat carbon fibers to improve their wear resistance, but the principle is not the same as this method

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