A method for monitoring the needling of the fiber structure in real time, needling device for implementing the method

摘要

Fiber structure which is needling (P), deposition generated by (114) comprising: depositing a fiber layer platen (100), a needle driven by reciprocating motion in a direction extending transversely with respect to the layers a step of needling the layers together as it is, while producing a deposit in order to obtain a desired distribution of needling characteristics through the thickness of the fiber structure, the distance between the stroke end position of the needle and the platen It is produced by the steps of varying. Be evaluated based on the force instantaneous magnitude representing (sensor 108), needling force (F) or penetration energy (E) is evaluated power instantaneous having been subjected to needle penetration of (f) is measured The size that is; are (F E), to monitor the proper operation of the process, or, in order to affect the way the distance between the stroke end position of the needle and the platen can be varied, at least one that they conform to a predetermined condition is verified.