Opening weft insertion mechanism applicable to multilayer fabric weaving

Abstract

The invention relates to textile machinery for multilayer fabric weaving, and particularly relates to a loom opening weft insertion mechanism for producing multilayer fabrics with thickness of over 10mm, belonging to the technical field of textile machinery. The opening weft insertion mechanism comprises a heald frame, an opening device and a weft insertion device in a loom, wherein the opening device consists of more than two layering rollers and two rhombus lifting mechanisms. The opening weft insertion mechanism provided by the invention has the advantages that in a lifting opening mechanism consisting of multiple groups of movable hinges, with more hinge points and more layers, the layers and thickness of a fabric can be increased; by the rhombus lifting mechanism, pages of the heald frame can be saved, and the varieties of the multilayer fabrics are expanded; the lifting opening mechanism and the weft insertion mechanism are in cooperation and linkage, the opening action is finished once for guiding each weft yarn, and the up-down movement of the weft insertion mechanism in the vertical direction can be realized; meanwhile, the up-down displacement of the lifting mechanism can be adjusted through the rotation amplitude of a spindle, and the bending abrasion and breakage of warp yarns are avoided.

Description

technical field [0001] The invention relates to an open weft insertion mechanism suitable for weaving multi-layer fabrics, in particular to an open weft insertion mechanism for a loom used to produce multi-layer fabrics with a thickness of more than ten millimeters, belonging to the technical field of textile machinery. Background technique [0002] Fiber-reinforced composites have significant advantages in physical, thermal and mechanical properties, enabling them to replace metals in many applications, especially where weight reduction is required. Reinforcing fibers in composites are usually continuous fibers rather than particles or whiskers, and continuous fiber composites are traditionally realized with two-dimensional layered structures, in which the fibers are arranged in the plane of the material (XY plane), but the two-dimensional layer A distinctive feature of the pressboard is that there is no fiber alignment in the thickness direction (Z direction). This has ...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the position and number of weft inserters are limited, and it is not possible to make multi-layer fabrics with more than seven layers

At present, this kind of enterprises mainly use the creel to send the warp directly and cooperate with the fixed layered roller frame to layer the warp yarns. In the aspect of the weft insertion mechanism, multiple rapiers are used to insert the weft at the same time. Since the number of rapiers is limited, it can Woven multi-layer fabrics with limited thickness

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