Generation of stop marks on circular knitting machine Cause of stop marks

There are many reasons for the stop marks: the sudden change of the yarn feeding amount causes uneven yarn tension, which changes the shape and size of the coils to form stop marks; , The positioning pin of the drive shaft is worn, and the gear shaft will also be worn and enlarged in severe cases, which will affect the yarn tension and cause stop marks; the relative sliding between the yarn feeding amount adjustment disc and the yarn storage drive belt is due to the inner glue of the yarn feeding amount adjustment disc. The wear of the granules and the transmission belt of the yarn storage device, or the insufficient pressure between the transmission belt and the rubber granules, and the rapid change of the running speed of the loom during the shutdown and start-up process, cause the friction coefficient between the rubber granules and the conveyor belt to become smaller, forming relative sliding, causing the unit The change of the yarn feed amount in the number of turns affects the yarn tension and forms a stop mark.

The wear of the transmission teeth of the yarn storage device or the stuffing of fluff and the wear of the conveyor belt of the yarn storage device will increase the relative sliding between the yarn storage device and the conveyor belt during the shutdown and start-up of the loom, resulting in a decrease or increase in the amount of yarn fed per lap. , the formation of stop marks. In this case, the shutdown marks are wider, which is also caused by the change of the length of the coil, and the length of the coil generally changes by 2% to 8%. The looseness and wear of other related transmission belts in the yarn feeding system will also cause uneven tension during shutdown and startup, resulting in shutdown marks.

I hope it will help you better understand Circular Knitting Machine. Welcome new and old customers to continue to cooperate with us to create a better future together!