| 摘要 |
The present invention relates to a stitcher roller used in tread stitching, when building a green tire when manufacturing a tire and, more specifically, to a stitcher roll for building a green tire, helping improvement of a cord wave of a tire carcass by preventing changes in the carcass cord when stitching. The stitcher roll for building a green tire, which is formed by comprising a stitching roll (2) rotated around a center support shaft (1) for compression of a tread or a side wall when building a green tire (100), has a structure that an inner circular magnet (4a) is arranged on the outer boundary of a ball bearing (3) mounted by surrounding the center support shaft (1), and an outer circular magnet (4b) is arranged around the inner circular magnet (4a) to have a separation gap (l) by repulsion of the same polarity, wherein the stitching roll (2) is mounted on the outer boundary of the outer circular magnet (4b). |
