System and method for textile positioning

Patent metadata

Field	Value
Publication number	US-9890484-B2
Application number	US-201414297414-A
Country	US
Kind code	B2
Filing date	Jun 5, 2014
Priority date	May 5, 2010
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

In various embodiments, the present disclosure relates generally to a method for needling a spiral textile to create a needled preform, the method comprising receiving the spiral textile on a bed plate of a circular needle loom, engaging a positional structure of the spiral textile, rotating the spiral textile around the circular needle loom, depositing a predetermined number of layers of the spiral textile on the bed plate, and needling the spiral textile to create the needled preform. Moreover, the present disclosure also provides, in various embodiments, a method for creating a circular needled preform from a spiral textile, comprising attaching sacrificial fibers to at least one of the weft tow and the plurality of warp tows proximate at least one of the inside diameter and the outside diameter, and engaging the sacrificial fibers with an engagement mechanism on a circular needle loom.

First claim

The invention claimed is:

1. A spiral textile, comprising:
an inside diameter and an outside diameter;
a weft tow extending from the inside diameter to the outside diameter;
a warp tow disposed between the inside diameter and the outside diameter; and
a positional structure proximate the weft tow and protruding at least one of radially inward from the inside diameter or radially outward from the outside diameter;
wherein the positional structure further comprises a sacrificial edge having sacrificial warp fibers disposed at least one of radially inward of the inside diameter or radially outward of the outside diameter, and wherein the positional structure facilitates positioning and transporting layers of the spiral textile with respect to a circular needle loom to create a needled preform,
wherein the positional structure comprises a fiber loop.

2. The spiral textile of claim 1 , wherein the sacrificial warp fibers comprise synthetic fibers, and wherein the warp tow comprises carbon fibers.

3. The spiral textile of claim 1 , wherein the sacrificial warp fibers and the warp tow comprise carbon fibers.

4. The spiral textile of claim 1 , wherein the weft tow comprises carbon fibers, and wherein the sacrificial warp fibers comprise synthetic fibers.

5. The spiral textile of claim 1 , wherein the sacrificial edge extends from about 0.15 inches to about 1.0 inch at least one of radially inward from the inside diameter or radially outward from the outside diameter.

6. The spiral textile of claim 1 , wherein the sacrificial structure is configured to be removed without removing the weft tow after the spiral textile is formed into the needled preform.

7. The spiral textile of claim 1 , further comprising a loop weft tow extending from the outside diameter to the inside diameter, and wherein the fiber loop is connected to the loop weft tow.

8. The spiral textile of claim 7 , wherein the fiber loop comprises carbon fibers, and wherein the loop weft tow comprises carbon fibers.

9. The spiral textile of claim 7 , wherein the fiber loop comprises synthetic fibers, and wherein the loop weft tow comprises synthetic fibers, wherein the fiber loop is created during weaving of the spiral textile in a narrow fabric needle loom.

10. The spiral textile of claim 7 , wherein the fiber loop comprises synthetic fibers, wherein the loop weft tow comprises carbon fibers, and wherein the fiber loop is attached to the loop weft tow after weaving of the spiral textile in a narrow fabric needle loom.

11. The spiral textile of claim 10 , wherein the fiber loop is attached to the loop weft tow by at least one of stitching and thermal bonding.

12. The spiral textile of claim 1 , wherein the positional structure interfaces with an engagement mechanism on the circular needle loom.

13. The spiral textile of claim 12 , wherein the engagement mechanism comprises at least one of a wheel, a clamp, and a spike.

Assignees

• Goodrich Corp

Inventors

• Lecostaouec Jean Francois

Classifications

• D04H18/02

  with needles · CPC title

• Y10T442/30

  Woven fabric [i.e., woven strand or strip material] · CPC title

• D03D3/00

  Woven fabrics characterised by their shape · CPC title

• D04H1/48

  in combination with at least one other method of consolidation · CPC title

• B29C70/386

  Automated tape laying [ATL] · CPC title