Apparatus for manufacturing taped insulated conductor and method of controlling tape winding tension

1. An apparatus for manufacturing a taped insulated conductor including a wire material feeder for feeding a wire material, a tape winder for winding a tape body around the wire material fed from the wire material feeder, and a receiving device for receiving the wire material around which the tape body is wound by the tape winder,

the tape winder comprising:

a tape pad fixing part for fixing a tape pad around which the tape body is wound;

a tape feed part having a first drive source including a servo motor for rotatingly driving the tape pad fixing part, so that a rotating shaft torque is controlled to a prescribed torque, thereby setting a delivery tension of the tape body to a prescribed value;

a tape winding flyer rotatably mounted to an outside of the tape feed part and having a plurality of tension control rolls for controlling a tension of the tape; and

a tape winding part having a second drive source including a servo motor for controlling a rotation of the tape winding flyer to the prescribed number of rotations;

wherein the tape body is fed from the tape pad to the tape winding flyer without a tension with the rotation having the rotating shaft torque controlled by the first drive source; the tape body fed to the tape winding flyer is wound around the wire material in a state in which a tension of the tape body is set to a specified value by the rotation made by the second drive source dependent on a contact area with which the tape body is twined around each of the tension control rolls.

2. An apparatus for manufacturing a taped insulated conductor according to claim 1 , wherein a drive source for the receiving device is a servo motor for controlling the number of rotations to the prescribed number of rotations in order to set a receiving speed at which the wire material is received to a prescribed speed.

3. An apparatus for manufacturing a taped insulated conductor according to claim 2 , wherein the second drive source rotatingly drives the tape winding flyer synchronously with the prescribed number of rotations used to make the receiving speed for the wire material constant by the drive source for the receiving device.

4. A tape winding tension controlling method of controlling a tension applied to a tape body for use in an apparatus for manufacturing a taped insulated conductor including a wire material feeder for feeding a wire material, a tape winder for winding the tape body around the wire material fed from the wire material feeder, and a receiving device for receiving the wire material around which the tape body is wound by the tape winder,

wherein when tension of the tape body in the tape winder is controlled, a delivery tension of the tape body is set to a prescribed value by controlling a rotating shaft torque to a prescribed value by a first drive source having a servo motor for rotatingly driving a tape pad fixing part for fixing a tape pad around which the tape body is wound; and

next, for the tape body fed to a tape winding flyer mounted to an outside of the tape pad fixing part and having a plurality of tension control rolls for controlling a tension of the tape, a tension applied to the tape body to be wound around the wire material is usually set to a specified tension without relying on the number of windings of the tape body by controlling the number of rotations to the prescribed number of rotations by a second drive source having a servo motor for rotatingly the tape winding flyer, and the tension of the tape body right before the tape body is fed to the tape winding flyer and is wound around the wire material is set to a prescribed tension obtained by twining the tape body around each of the plurality of the tension control rolls provided in the tape winding flyer, and being dependent on a contact area with which the tape body is twined around each of the tension control rolls.

5. A tape winding tension controlling method according to claim 4 , wherein a receiving speed at which the wire material is received is controlled to a prescribed speed by controlling the number of rotations to the prescribed number of rotations by a servo motor as a drive source for the receiving device.

6. A tape winding tension controlling method according to claim 5 , wherein the second drive source rotatingly drives the tape winding flyer synchronously with the prescribed number of rotations used to make the receiving speed for the wire material constant by a drive source for the receiving device, so that a winding pitch of the tape body wound around the wire material is controlled to a constant value.