| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet manufacturing device capable of surely cutting a sheet.SOLUTION: A sheet manufacturing device includes: a formation part for at least forming a web in which fiber is accumulated; a cutting part for cutting the web; a detection part for detecting sagging of the web on a more upstream side in a web conveyance direction than the cutting part; a cutting part front roller for conveying the web by a roller on the more upstream side in the web conveyance direction than the cutting part; and a cutting part rear roller for conveying the web by the roller on a more downstream side in the web conveyance direction than the cutting part. The sheet manufacturing device has a control unit which, during a period before the cutting part rear roller starts to convey the web after the web is cut by the cutting part, makes the rotational speed of the cutting part front roller faster when sagging is larger compared to the case when sagging is small, and makes the rotational speed of the cutting part front roller slower when sagging is smaller compared to the case when sagging is large, and during a period before the cutting part cuts the web after the cutting part rear roller starts to convey the web, makes the cutting part front roller rotate more slowly than the cutting part rear roller. |
