Title:
抄紙機のロール速度制御方法および装置
Document Type and Number:
Japanese Patent JP5514695
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To minimize impact of paper breakage on an entire paper machine system by suppressing influence of disturbance on upstream when paper breakage occurs between rollers in the paper machine system.SOLUTION: When tension fluctuation occurs at a real tension fluctuation assumption point between a conveyance roller 4R and a conveyance roller SR, the conveyance roller 4R in a pre-stage needs a torque reference additional output equal to sheet tension coming from the roller SR in a subsequent stage. The sheet tension detected by a tension detection device TD is deducted from an output of a speed controller 13 when the tension fluctuation does not occur at the real tension fluctuation assumption point, so that a torque controller 17 is immediately corrected when the tension fluctuation occurs at the real tension fluctuation assumption point, to impart a torque reference equal to the sheet tension necessary for the conveyance roller 4R to the torque controller 17. Consequently, speed variation can be suppressed at upstream of a real tension fluctuation occurrence point.
Inventors:
Tomoyuki Abe
Mitsuhiro Shibata
Mitsuhiro Shibata
Application Number:
JP2010235712A
Publication Date:
June 04, 2014
Filing Date:
October 20, 2010
Export Citation:
Assignee:
Toshiba Mitsubishi Electric Industrial Systems Co., Ltd.
International Classes:
D21F7/00; B65H23/192; H02P21/00; H02P23/07; H02P23/16; H02P27/04
Domestic Patent References:
| JP2262886A | ||||
| JP2188353A | ||||
| JP7315650A | ||||
| JP2009208957A |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
Iwa Saki Kokuni
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu