CPC D04H 18/02 (2013.01) [D10B 2505/02 (2013.01)] | 3 Claims |
1. A circular needling machine, the machine comprising:
a horizontal sheet-forming turntable for forming a helical fiber sheet and driven at a constant and predefined speed of rotation NFS;
a horizontal intermediate turntable positioned under the sheet-forming turntable and driven at a speed of rotation NFI;
a horizontal intermediate unwinder positioned on the intermediate turntable and driven at a speed of rotation NDI;
a final horizontal unwinder positioned under the intermediate unwinder and driven at a speed of rotation NDF; and
a horizontal preform-forming turntable positioned under the final unwinder and driven at a variable and predefined speed of rotation NFP.
|