Method for winding a fibre element having different longitudinal portions
AssigneePirelli Cavi e Sistemi S.p.A.
InventorGiacomo Stefano Roba
Life of this patent
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Abstract
Method for winding a fiber element onto a support. The fiber element having at least two longitudinal portions (Pi) with different characteristics. The method including the steps of supplying the fiber element to the support and associating with each longitudinal portion a respective value of the winding pitch (pi) which is different from the values associated with the portions adjacent thereto. The winding pitch associated with each portion being modulated in accordance with a periodic function.
Claims25
Method for producing a fibre element, said method comprising the step of drawing said fibre element from a preform and forming two longitudinal portions (Pi) with different characteristics of said fibre element, and being characterized in that it comprises the step of winding said two longitudinal portions onto a support, associating a respective winding pitch (pi) with each of said two longitudinal portions.
Assembly for the production of a fibre element, comprising a production apparatus designed to produce a fibre element having at least two longitudinal portions (Pi) with characteristics which are different from one another;
- said assembly being characterized in that it also comprises a winding apparatus designed to receive said fibre element from said production apparatus and wind said fibre element onto a support, associating a respective winding pitch (pi) with each of said portions.
Method for winding a fibre element onto a support, said fibre element comprising at least two longitudinal portions (Pi) with different characteristics, said method comprising the step of supplying said fibre element to said support and being characterized in that it comprises the step of associating with each of said portions a respective value of a winding parameter (pi) which is different from the values associated with the portions adjacent thereto.
Apparatus for winding a fibre element onto a support, said fibre element comprising at least two longitudinal portions (Pi) with different characteristics, said apparatus comprising:
- a supply member for supplying said fibre element to said support;
- and
- a moving device for moving either one or other of said support and said supply member along a predefined axis and at a predefined speed of translation so as to obtain a predefined winding pitch;
- and being characterized in that the apparatus comprises a unit for controlling said moving device, designed to control said speed of translation so as to associate with each of said portions a respective winding pitch (pi) different from the winding pitches associated with the portions adjacent thereto.
Apparatus for distinguishing different longitudinal portions of a fibre element wound onto a support, each of said portions having associated with it a respective winding pitch (pi), characterized in that the apparatus comprises:
- a device for unwinding said fibre element from said support;
- a sensor device designed to measure repeatedly a parameter correlated to said winding pitch and generate a signal (S;
- S′) indicating said parameter;
- and
- a processing unit designed to receive said signal and detect, on the basis of said signal, variations in said parameter.
Dependencies are inferred from the claim text.