| 摘要 |
PURPOSE:To simplify a device and to prolong the service life of a roll by transmitting forming reaction forces, put on a segmented loose roll group rotatably and adjacently arranged on a roll shaft, to endmost loose rolls whose boss part is extended in the component force direction. CONSTITUTION:Driving upper roll A and lower roll B are fixed on roll shafts 1a and 1b with keys 2a and 2b, respectively. Endmost loose rolls 6a and 8b are fixed on tube-shaped roll sleeves 12a and 12b whose both ends are pivotally supported by bearings 11 set on shaft sleeves 10a and 10b fixed on the roll shafts 1a and 1b with the keys 2a and 2b, respectively. Thus, a tube-shaped boss part is formed. In that construction, the structure is simplified because the reaction forces of the loose rolls are transmitted to the endmost rolls.
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