| 摘要 |
PURPOSE:To facilitate the correction of the gap between a back bottom roller and a middle bottom roller, by supporting each roller with a housing integrated to the driving shaft of the roller, and fixing the housing to a frame in a manner to enable the adjustment of the position. CONSTITUTION:The back bottom roller 3b and the back roller driving shaft 14 are supported by single housing 8, and the middle bottom roller 4b and the middle roller driving shaft 15 are supported by another single housing 9. The housings 8, 9 are attached to a frame 10 in a manner to enable the adjustment of the positions. The back roller driving shaft 14 and the middle roller driving shaft 15 are common to all spindles and the back bottom roller 3b and the middle bottom roller 4b are supported by one or two spindle units. |
