Title:
WEB CENTER POSITION CONTROL DEVICE, METHOD AND PROGRAM, AND WEB TRIMMING DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/114441
Kind Code:
A1
Abstract:
Disclosed is a web center position control device which is capable of eliminating the offset generated in web conveyance.
Specifically disclosed is a web center position control device (100) which comprises a center position control device (110), a first sensor (121) for detecting the actual center position of a web (800) in the widthwise direction, a second sensor (122) for detecting the actual center position of the web in the widthwise direction closer to the downstream side than the first sensor, and a control device (130) for controlling the operation of the center position control device. The control device computes first deviation and second deviation from the detection values of the first sensor and the second sensor, computes a first computing value from the second deviation on the basis of formula (1), and adds the first computing value to the first deviation for each control unit time until the second deviation reaches zero.
First computing value = D/T × C1 (1)
D: Second deviation
T: The value obtained by dividing the distance between the first sensor and the second sensor by the conveyance speed of the web (time)
C1: Constant
Inventors:
OTA YOSHITAKA (JP)
KON YOSHIAKI (JP)
KON YOSHIAKI (JP)
Application Number:
PCT/JP2010/054431
Publication Date:
September 22, 2011
Filing Date:
March 16, 2010
Export Citation:
Assignee:
OTA YOSHITAKA (JP)
KON YOSHIAKI (JP)
NIRECO CORP (JP)
KON YOSHIAKI (JP)
NIRECO CORP (JP)
International Classes:
B65H23/038; B23D19/06
Foreign References:
| JP2000225512A | 2000-08-15 | |||
| JPS5269082A | 1977-06-08 | |||
| JPH0632531A | 1994-02-08 | |||
| JP2010507543A | 2010-03-11 |
Attorney, Agent or Firm:
AMANO, HIROSHI (JP)
Hiroshi Amano (JP)
Hiroshi Amano (JP)
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Claims: