| 摘要 |
PURPOSE:To have proper control of contact pressure always by furnishing a load sensor in that part of a supporting mechanism, for a fixed touch roller in a take up device concerned, where a pressurization force is applied in accordance with the contact pressure, and by feeding back produced signals to a contact pressure control part. CONSTITUTION:A winding shaft C is supported at the tip of a winding shaft supporting mechanism A consisting of a swing arm, and a sheet roll R is formed on this shaft C with a cylindrical core interposed. Sheet roll R is formed by winding up the fed sheet S through a touch roller 1, when the swing arm A will be moved swingingly to the right by a fluid pressure cylinder M gradually as the current dia. of winding increases. Here a load sensor 3 is interposed between a receipt table 2 as supporting mechanism for touch roller 1 and the machine frame F. A contact pressure calculator 5 determines the contact pressure Pc from the compressive load Rn given by said load sensor 3, and this value Pc is used for feedback control of a contact pressure control part 4. Thus the fluid pressure cylinder M is controlled. |
