Taping device in coil winders

A coil winding machine comprising in combination a stepwise rotating table and a plurality of supports distributed about the periphery of the rotating table, each support carrying at least one coil core, and means for applying and winding a discrete length of insulating adhesive tape on the periphery of a coil wound on each said core, said means comprising:

• a support plate, means mounting the support plate on the machine for rotation about the axis of a said wound coil, and a reel of feed tape mounted freely rotatable on said support plate;
• means mounted on the machine for causing said support plate to oscillate from a rest position, away from the wound coil, to a working position in proximity to said coil;
• first guide means, mounted on said support plate in such a position that, with the support plate in said working position, said guide means is closely adjacent said wound coil, said first guide means guiding said tape in a plane parallel to the axis of said coil;
• second guide means, disposed at a short distance from the first guide means and also mounted on said support plate, the tape running between said first and said second guide means along a first path substantially perpendicular to the axis of the wound coil, said tape running also between said second guide means and said reel, along a second path substantially parallel to the axis of the said coil;
• means mounted on the machine for retaining the free end of the tape against the periphery of the wound coil;
• means actuating the last-named means when the winding of said tape starts;
• means mounted on the machine for cutting off said discrete length of the tape;
• and means actuating the lastnamed means after the winding of at least one turn of tape.