Weaving multilayer products using multiple warp columns and heddle columns

a multi-layer product and warp column technology, applied in weaving, looms, textiles and papermaking, etc., can solve the problems of poor warp control, difficulty in weaving, and too much warp and weft fiber congestion to weave efficiently, so as to reduce warp and weft fiber congestion and improve warp control

US20170226666A1Active Publication Date: 2017-08-10ALBANY ENGINEERED COMPOSITES
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2017-08-10

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Abstract

An apparatus for weaving a multilayer product that has one or more warp columns for placing warp fibers and one or more heddle columns for heddles for lacing the warp fibers. The weaving apparatus has a numerical ratio of warp columns and heddle columns that is a fractional number. And a portion of the warp fibers are laceable through heddles on one or more heddle columns based on the fractional number. A method for weaving a multilayer product where adjacent warp fibers are segmented and laced through heddles on the heddle columns based on the fractional number.
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Description

BACKGROUND

[0001] 1. Field of the Invention

[0002] This invention is related to weaving of multilayer products woven from columns of warp fibers controlled by heddle columns. In particular, the ratio of the number of warp columns to the number of heddle columns is a fractional number.

[0003] 2. Description of the Related Art

[0004] The use of reinforced composite materials to produce structural components is now widespread, particularly in applications where their sought desirable characteristics are being light in weight, strong, tough, thermally resistant, self-supporting and adaptable to being formed and shaped. Such components are used, for example, in aeronautical, aerospace, satellite, recreational use (as in racing boats and autos), and other applications.

[0005] Typically such components consist of reinforcement materials embedded in matrix materials. The reinforcement component may be made from materials such as glass, carbon, ceramic, aramid, polyethylene, and / or other materials whi...

Examples

Embodiment Construction

[0029]Exemplary embodiments of weaving apparatus with warp columns counts and heddle columns counts are disclosed that facilitate weaving multilayer preforms where the ratio of warp columns to heddle columns is a fractional number and where a portion of the warp fibers are laceable through the heddles on one or more of the heddle columns based on the fractional number, allowing for better and more adequate shed space and efficient weaving than in prior art techniques.

[0030]Turning to FIG. 1, it shows an exemplary weaving apparatus for weaving a 4-layer multilayer preform with two heddle columns 104, 105 and three warp columns 101, 102, 103. The ratio of warp columns to heddle columns is one and a half as determined by dividing the number of warp columns by the number of heddle columns. FIG. 1 shows warp fibers being laced through heddles on the heddle columns. Warp column 101 shows four exemplary warp fibers 106, 107, 108, 109. Warp column 102 shows four exemplary warp fibers 110, 1...