Some users prefer to use Text entry (it's more precise). As you enter the key values you get instant feedback on the key outputs in the blue boxes.
The occurrence and prediction of wrinkles, and their cures, are fully covered in The Web Handling Handbook by Roisum, Walker and Jones.Ĭhoose the units of measure as either Metric or US. Note that this app focuses on in-plane (parallel or tram) misalignment that is at least one order of magnitude more critical than out-of-plane (skew or twist) misalignment.
Instead, it is to predict the actual occurrence of a slack edge and wrinkle and the amount of change in web path called TD offset. The challenge is not to predict risks those are already known and listed above. This bending will always result in four risks: slackness on the inside of the curve, over-tensioning on the outside of the curve, an offset in the path and a diagonal wrinkle pointing to the narrow side of the pair of rollers that are not parallel. This is known as the Normal Entry Law because it is the normal way webs and rollers interact and because normal is a synonym for right angle. This app can be used to determine options to reduce this misbehavior, such as changing tension, as well as to guide the maintenance department on how close rollers need to be aligned.Ī web will tend to bend to enter the next roller at a right angle. To predict the tendency for a pair of misaligned rollers to form wrinkles and related misbehavior.
#Sononym for misalignment manual#
User's Manual for the Wrinkle Predictor Application
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