Wire tension control apparatus especially for coil winding machines

A wire tension responsive takeup device for accommodating changes in wire tension in a high speed coil winding machine comprising:

• a. a first wire guide engaging the wire used for winding a coil,
• b. means for mounting said first wire guide for movement in a substantially linear path,
• c. first bias means for yieldably resisting movement of said first wire guide in one direction along said path,
• d. a second wire guide engaging the wire,
• e. means for mounting said second wire guide for movement independently of said first wire guide along a second path which is parallel to and adjacent said first mentioned path,
• f. second bias means operable independently of said first bias means for yieldably resisting movement of said second wire guide along said second path in a direction opposite to said one direction,
• g. means for guiding wire from a source of wire under tension along a predetermined path to said first wire guide, which path is at an angle to the path of the wire between said first and second wire guides, and
• h. means for guiding wire from said second wire guide along another path which is at an angle to the path of the wire between said first and second wire guides.

A wire demand or tension responsive device for accommodating changes in wire demand or tension in a high speed coil winding machine comprising:

• a. a first pair of parallel guide rods;
• b. a first car slidably mounted and confined for movement on said guide rods;
• c. a first pair of compression springs, one for each of said guide rods coiled thereabout and yieldably resisting movement of said car in one direction along said guide rods;
• d. a first pulley mounted on said car intermediate said guide rods;
• e. a second pair of parallel guide rods which are parallel to said first pair of guide rods;
• f. a second car slidable and confined for movement on said second pair of guide rods;
• g. a second pair of compression springs, one for each of said second pair of said guide rods coiled thereabout for yieldably resisting movement of said second car in the direction opposite to said one direction;
• h. a second pulley mounted on said second car intermediate said second pair of guide rods, the axis of rotation of said second pulley being parallel to the axis of rotation of said first pulley;
• and
• i. means for guiding wire from a wire supply to said first pulley and for guiding wire from said second pulley so that the stretch of wire guided from said second pulley extend along paths which are at angles to the stretch of wire between said first and second pulleys.

A wire tension responsive takeup device for accommodating changes in wire tension in a high speed coil winding machine comprising:

• a. a first wire guide engaging the wire used for winding a coil,
• b. means for mounting said first wire guide for movement in a substantially linear path,
• c. first bias means for yieldably resisting movement of said first wire guide in one direction along said path,
• d. a second wire guide engaging the wire,
• e. means for mounting said second wire guide for movement independently of said first wire guide along a second path,
• f. second bias means operable independently of said first bias means for yieldably resisting movement of said second wire guide along said second path,
• g. means for guiding wire from a source of wire under tension along a predetermined path to said first wire guide, which path is at an angle to the path of the wire extending from said first guide, and
• h. means for guiding wire from said second wire guide along another path which is at an angle to the path of the wire leading to said second wire guide.