| 摘要 |
<p>Provided is a web carrier which can prevent creasing of a web by detecting a sign of creasing of a web during carriage of the web. The web carrier (1) for carrying a sheetlike web (10) by means of a plurality of rollers (2) detects the linear pattern of a waveform generated on the web (10) from an image picked up by means of a camera (imaging means) (3) using an image analysis means (73) in a controller (7), recognizes a state becoming the sign of creasing with the aid of the image and simultaneously analyzes the entering direction of the linear pattern into a guide roller (2c), drives the shaft (20c) of the guide roller (angle adjusting roller) (2c) in the direction of canceling the waveform (so that the web is not creased), and controls an alignment adjusting means (5) such that the web is not creased.</p> |
