1 results about "Fiber posts" patented technology

This invention relates to the field of fiber needle punching technology, specifically disclosing a high-efficiency carding and needle punching device for basalt fibers, comprising a loosening and feeding mechanism, a pre-coiling mechanism, a carding and web-forming mechanism, a cross-laying mechanism, and a needle punching and consolidation mechanism arranged sequentially. This invention uses hookless needles, effectively eliminating bending stress sources. When the needle penetrates the fiber web at high speed, the micro-rough structure on the needle surface generates static friction with the fibers, dragging a portion of the fibers along the needle punching direction into the fiber web. When the needle withdraws, because the frictional resistance between the fiber and the surrounding fiber web is greater than the frictional force between the needle and the fiber, the fiber is retained inside, forming vertical fiber columns, achieving entanglement and solidification. Since the fibers are only subjected to tensile and shear stress throughout the process, they do not undergo rapid bending, thereby effectively reducing the fiber breakage rate.