Wire body take-up device and wire body take-up method

A line body take-up method for taking up a line body around a bobbin having a flange at each of two ends thereof in an axial direction, the method comprising:

• taking up the line body around an outer circumferential surface of a winding body of the bobbin at a predetermined take-up pitch with aligned winding while moving the bobbin to traverse, so that a winding position of the line body is sequentially changed in the axial direction, to form a wound line body layer;
• inverting the direction of traverse when the line body is wound up to an inner edge of the flange of the bobbin;
• and
• winding the line body around an outer circumferential surface of the previous wound line body layer, formed by winding the line body so far, in an aligned manner at the take-up pitch to form a subsequent wound line body layer, by use of a line body turn part by which the previous wound line body layer is transferred to the subsequent wound line body layer;
• wherein the line body take-up method uses a line body take-up device comprising a first line body winding mechanism and a second line body winding mechanism,
• wherein the first line body winding guide mechanism comprises a pair of roller units respectively corresponding to two transverse directions,
• wherein each roller unit comprises:
• an outer circumferential press roller part for contacting and pressurizing an outer circumferential surface of a line body winding part, which is being wound in a layer in an aligned manner, and
• a flange roller part for contacting a side surface of the line body winding part on a forward side in the traverse direction,
• wherein the outer circumferential press roller part and the flange roller part are integrated together,
• wherein the first line body winding guide mechanism selects one of the pair of roller units in accordance with the traverse direction to be used and guides the line body to the outer circumferential surface of the winding body;
• and
• wherein the second line body winding guide mechanism comprises:
• a first press block by which:
• when the line body winding part approaches the vicinity of the flange of the bobbin, a main body side surface of the first press block contacts an inner side surface of the flange and a main body tip surface of the first press block contacts and pressurizes the outer circumferential surface of the wound line body layer;
• when the subsequent wound line body layer starts to be wound by use of the line body turn part, the main body tip surface of the first press block contacts and pressurizes an outer circumferential surface of the line body turn part in the subsequent wound line body layer;
• and
• when the traverse direction is inverted, the main body tip surface of the first press block contacts and pressurizes the outer circumferential surface of the previous wound line body layer so that the main body side surface of the first press block contacts a side surface of the line body turn part in the subsequent wound line body layer on the forward side in the inverted traverse direction;
• a second press block, incorporated in a main body of the first press block, with which:
• until the line body winding part approaches the vicinity of the flange of the bobbin, a tip surface of the second press block is generally flush with the main body tip surface of the first press block;
• when the subsequent wound line body layer starts to be wound at the inner edge of the flange, the second press block protrudes from the main body tip surface of the first press block to press the outer circumferential surface of the previous wound line body layer by means of the tip surface of the second press block, and also a side surface of the second press block contacts a side surface of the line body winding part in the subsequent wound line body layer on a backward side in the traverse direction;
• and
• a traverse inversion signal transmission unit for, when the first press block is put on the subsequent wound line body layer at the inner edge of the flange, transmitting a traverse inversion signal;
• and
• the line body take-up method sets the take-up pitch to 1.01 to 1.25 times a width of the line body,
• wherein a cross-section of the line body has a substantially rectangular shape whose corners are rounded.