| 摘要 |
<p>The roll forming machine (1) has feed device (3) for feeding of blanks (2) to inlet (5) between roller dies (6,7) along conveying direction (A). The feed device has a driven feed element (9) for transport of spaced blanks along the slide rail (8). A back and forth oscillating insert slide (14) is provided for ramming the blank to inlet. A lower web portion is equipped for advancing the insert slide to front end, and an upper web portion is equipped for returning the insert slide to the rear end. The lower web portion is curved with respect to slide rail.</p> |
