Winding device

Abstract

The invention relates to a moving device 1 for a coil 3' core 3 or a coil 3' having a closed shape with an inner contour and an outer contour, including first and second rollers 4a, 4b able to rotate around a respective axis and intended to bear against one of the two contours of the core 3 or of the coil 3', means 20' for driving at least one of said rollers 4a, 4b in rotation, and retaining means 8a, 8b associated with each roller 4a, 4b, the retaining means 8a, 8b being subject to first return means 12 arranged to bring the first retaining means closer to the other of the two contours of the core 3 or the coil 3', as well as a coil winder equipped with such a device.

Description

technical field [0001] The invention relates to a device for moving a coil or a coil core having a closed shape with an inner contour and an outer contour, and a coil winder equipped with such a device. Background technique [0002] Coil winders typically manufacture coils by winding wire, typically copper, and electrically insulated, usually by painting, around a ferromagnetic core, in particular a ferromagnetic core made of soft iron . [0003] Due to the geometry of the core, the coil itself is closed, thereby defining the passage opening. [0004] These coils can be applied by including them in constituent parts of the Hall effect sensor. [0005] The principle of these sensors is based on the change in electrical current created by the entry of a metal rod into the channel opening of the coil. [0006] For this reason, the coils of these sensors most of the time have the shape of a circular ring, allowing a round rod or a rectangular rod to pass through the coil open...

AI Technical Summary

Problems solved by technology

[0015] However, the method for adjusting the existing tools is very cumbersome to perform and has major drawbacks: only partial winding can be performed on the two long sides of the elongated core and creates a gap between the two wound parts. balance

[0020] Furthermore, due to the use of strips, the rotational movement of the core produced by the strips does not maintain a constant distance between the shuttle and the core or the coil, which causes the wire to be caught on certain parts of the coil, especially in the bends of the core. Bulge

[0021] Therefore, choosing this method entails excess costs associated with the purchase of a coil winder of this type with a set of strips of different lengths and their own different maintenance or repairs (especially replacement strips)

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