Circular needling table for needling a textile structure made from an annular fiber preform

1. A circular needling table for needling a textile structure made from an annular fiber preform, the table comprising:

a horizontal annular platen for having the annular fiber preform placed thereon;

drive means for driving the fiber preform in rotation about the axis of the platen; and

a needling device having a needling head extending over an angular sector of the platen and driven in vertical motion relative to the platen;

guide members for guiding the fiber preform under the needling head, wherein the guide members are secured to a plate that constitutes a stripper interposed between the needling head and the platen.

2. A table according to claim 1 , wherein the guide members are formed by pins that extend vertically from the stripper towards the platen and that are positioned angularly in such a manner as to form outer and inner guidance for the fiber preform.

3. A table according to claim 2 , wherein the platen includes holes, each located in register with one of the guide pins of the stripper.

4. A table according to claim 1 , wherein the guide members are formed by inner and outer walls that extend vertically from the stripper towards the platen.

5. A table according to claim 1 , wherein the drive means include a motor configured to actuate a roller configured to contact the annular fiber preform.

6. A circular needling table for needling a textile structure made from an annular fiber preform, the table comprising:

a horizontal annular platen for having the annular fiber preform placed thereon;

drive means for driving the fiber preform in rotation about the axis of the platen;

a needling device having a needling head extending over an angular sector of the platen and driven in vertical motion relative to the platen;

guide members for guiding the fiber preform under the needling head, wherein the guide members include inner and outer vertical walls for guiding the fiber preform, which walls are secured to the platen and are positioned angularly so as to provide outer and inner guidance for the fiber preform; and

a plate forming a stripper interposed between the needling head and the platen, the outer guide wall for guiding the fiber preform or the stripper having vertical notches to enable the stripper to be lowered.

7. A table according to claim 6 , wherein the drive means include a motor configured to actuate a roller configured to contact the annular fiber preform.

8. A circular needling table for needling a textile structure made from an annular fiber preform, the table comprising:

a horizontal annular platen for having the annular fiber preform placed thereon;

a driver unit configured to drive the fiber preform in rotation about the axis of the platen;

a needling device having a needling head extending over an angular sector of the platen and configured to be driven in vertical motion relative to the platen;

a guide member configured to guide the fiber preform under the needling head, wherein the guide member is secured to a plate that constitutes a stripper interposed between the needling head and the platen.

9. A table according to claim 8 , wherein the guide member includes a plurality of pins that extend vertically from the stripper towards the platen and that are positioned angularly in such a manner as to form outer and inner guidance for the fiber preform.

10. A table according to claim 8 , wherein the guide member includes inner and outer walls that extend vertically from the stripper towards the platen.

11. A table according to claim 8 , wherein the driver unit includes a motor configured to actuate a roller configured to contact the annular fiber preform.