REWINDER SIZING CONTROLLER

• Main Author: IIZUKA NOBUYUKI
• Format: Patent
• Language: English
• Published: 28.03.2000
• Edition: 7
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a rewinder sizing controller eliminating a tension fluctuating factor and reducing an acceleration time for improvement operation efficiency. SOLUTION: According to a load factor B from a drum load detector 24, an acceleration upper limit value computing circuit 25a decides a maximum acceleration α am, and using this maximum acceleration α am, a speed reference computing circuit 18 computes a speed reference. An achievable speed computing circuit 26 performs approximation to a winding speed set value by using the maximum acceleration α am and computes an achievable speed Vs for fixing the speed reference without correcting the acceleration so as to give it to the speed reference computing circuit 18. A sizing movement eliminating speed computing circuit 27 computes a movement eliminating speed vo for sizing control when a deceleration start is detected so as to give it to the speed reference computing circuit 18. In this way, a tension fluctuating factor can be eliminated.