weft feeder

The weft feeder system is divided into tension installation and tension-free installation to choose between. The latter is the most popular; compared with the former, it is cheaper, easier to use and not easy to break the weft. In the tension mounting bracket, a roll of yarn passes through a hole in the lower part of the carrier ring, and from there is loaded into the feeding tube of the weft yarn feeder. Then install the loom on the top of the tube with spacers, and install handles, locks or knobs to adjust the tension. If you want to use tension-free installation, just remove the gasket, but make sure that the load ring does not fall off the tube, as this may be the cause of the weft yarn break.
The type of feeder also depends on whether you want to rotate the main nozzle. The usual choice is reverse rotation or cross belt, or even rotary auger feed. The advantage of the rotating screw is that it eliminates tension, so the loom can be wound more easily, and the weft feeder system can run at a higher speed. Controlling speed is also simpler because no rotation is required, and any tilt can be offset by running the belt faster or more smoothly.
Another important aspect of the weft feeder setup is the way the shaft is wound. In this case, two things are required: tension and yarn per unit (YPN). To understand how these factors affect feeding, let's start with the tension axis. When it rotates, the shaft loses some tension, and when the yarn rotates around the unit, this causes the total energy to decrease.
On the other hand, continuous feed causes continuous force to be applied to the loom. When the feed angle is too steep, the yarn rotates faster, which increases the overall tension and causes the power of the weft feeder system to decrease.
The last item concerns the structure of the weft feeder itself. Some of the most commonly used materials for equipment bodies include metal, stainless steel, wood, brass, and plastic. The material used in the feeder shaft must have sufficient resistance to withstand high levels of torque and still allow the yarn to rotate freely and well. If the structure of the shaft is not strong enough, the entire mechanism will be in danger. A weak shaft will not only cause poor feeder performance, but also cause the entire machine to malfunction.