| 摘要 |
An apparatus (10) is disclosed for roll forming metal components including substantially channel-shaped members (22) for use in a building structure. The apparatus (10) includes a support frame assembly having front and rear portions (42) and (44). A mechanism is provided for selectively feeding at least one metal strip into the support frame assembly, the metal strip having a pair of side edges (26) and a center web (24). A plurality of driver roll elements (52,54,56,58) are mounted along the support frame assembly and are adapted to move the metal strip (22) through the frame assembly. Finally, a plurality of spaced idler forming roils (60, 62) are mounted for free rotation in pairs along the support frame assembly. The idler forming -rolls are adapted to simultaneously air form the side edges of the metal strip (22) into angularly extending side flanges by urging the.side edges (26) in opposing directions from the center web (24) as the metal strip is moved along the frame assembly by thedriver roll elements (52,54,56,58). In addition, a. device for feeding metal strips to the roll forming apparatus is disclosed along with an apparatus for assembling metal wall frame structures, both stationary and foldable forms thereof, from channel-shaped members. |
