Hello, I want to ask you a question. How to calculate the production speed of air-jet loom? What is the relationship between vehicle speed and production speed?

Set the speed of loom as n revolutions per minute; If the weft density is d/ inch, then n weft yarns can be introduced per minute. According to the weaving variety (C40 140X 100) and the weft density d = 100/ inch, theoretically, a fabric of n/d inches can be woven every minute. However, in actual production, the loom will have downtime such as warp stop, weft stop and car break, and the fabric will shrink after getting off the loom, which requires the introduction of the concepts of working efficiency and shrinkage rate. Assuming that the working efficiency is η and the shrinkage rate is s (for example, the shrinkage rate is 2%, and the fabric on the machine is 100m, and only 98m after getting off the machine), the fabric can actually be woven in n/d*η*( 1-s) inches per minute, and the fabric can be woven in n/d*η*(65438+) per hour. In this column, if n=700, η=90% and s=2%, 9.4 1m fabric can be woven per hour.