Title:
油圧ピンチロールの制御方法とその制御装置
Document Type and Number:
Japanese Patent JP4389136
Kind Code:
B2
Abstract:
A control unit of hydraulic pinch rolls 1 comprises: position detectors 10c, 10d that detect position of right and left cylinder pistons 6c; an arithmetical unit 13 that calculates a difference of output 16c, 16d from the position detectors; a controller 14 that processes a calculated value to make correction output; and add-subtract units 18c, 18d that add/subtract the correction output from the controller such that the correction output 17 is added to an end portion of the pinch rolls having a wider gap in a direction to push the gap and the correction output of the same amount is subtracted from the opposite end portion, by which the set values of pressing force control provided for right and left independently are corrected. Thus, a defective winding shape can be suppressed.
Inventors:
Hiroaki Kuwano
Koji Shirakawa
Koji Shirakawa
Application Number:
JP2000047075A
Publication Date:
December 24, 2009
Filing Date:
February 24, 2000
Export Citation:
Assignee:
Ihi Co., Ltd.
International Classes:
B21B39/00; B21C47/00; B21B41/12; B21C47/34; B21B15/00; B21B37/68
Domestic Patent References:
| JP9267126A | ||||
| JP8052514A |
Attorney, Agent or Firm:
Minoru Hotta
Shigeru Nara
Shigeru Nara