| 摘要 |
A roll forming device (10) receives a continuous elongated flat sheet of metal (30) to form selected profiles along at least one longitudinal margin thereof. A drive assembly (60), located within the apparatus frame, engages the elongated sheet proximate to the entryway (26) and advances the sheet. Also located within the frame is at least one forming station (74) with a coacting pair of forming rollers journaled for rotation. Some of the forming stations may include a plurality of coacting forming rollers, mounted to be adjustably positioned thereby accommodating varying widths of material. The invention includes at least one guide bar (68) which initially deflects a longitudinal margin of the metal sheet bending it into a trough-shaped cross-section. The device can also employ a second guide bar (70). The invention may include a reel assembly (34) to rotatably mount a coil of material, as well as a sub-frame supporting an assemblage of forming stations.
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