Importance

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Abstract

Winding device characterized in that it enables to fabricate coils of which the supports or formers are substantially deprived of rigidity. The device comprises an element (1) for fixing the non-rigid support (2) during the whole winding operation. In order to make said operation possible, an element (4) is axially displaced with respect to the synchronously fed coil and in the same direction as the mechanism of which the arm (5) winds the wire to be wound (3) around the non-rigid support (2), said element (4) having two parts (6 and 7) covering the wound portion on two of its opposite large faces so that the last turn or turns made during fabrication are at least covered on the width of the non-rigid support (2). To prevent the coil from vibrating during manufacturing between the two parts (6 and 7) of the element (4) while the non-rigid support (2) is acted upon by the tension of the wire to be wound (3) of which the direction is turning, there is provided to mount on one of the two parts (6 or 7) of the element (4) a solenoid (8) through which is circulated an electric current thereby forming an electromagnet capable of attracting thereagainst the non-rigid support (2) which is supposedly made with a material sensitive to a magnetic field.

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First Claim