The composition of the air texturing yarn machine
1. Stretch part
It is composed of feeding roller and drawing roller, which mainly draws the raw yarn which is not completely drawn. Generally, the drawing roller is a hot roller, and its temperature depends on different fiber types. The temperature is between 60 ~ 80 ℃, can also be stretched in the cold state.
2. Wet deformation part
Before the silk thread enters the texturing nozzle, wetting with water first can improve the efficiency of the texturing device, increase the texturing effect, and improve the uniformity and stability of the silk. Increasing the amount of wetting can also reduce air pressure and consumption. The air texturing nozzle is the core of air texturing, and different specifications of air texturing nozzles are selected according to the characteristics of the texturing filament and the final texturing nature.
3. Air deformation nozzle
The air-forming nozzle not only affects economic indicators such as texturing speed and air consumption, but also affects the quality of the texturing wire. At present, there are many types of nozzles, which can be basically divided into two types, namely DuPont's Taslan series nozzles and Heberlein's Hema nozzles. Although the US EIVIAD company's viper-shaped nozzle is different from DuPont's nozzle structure, its main structure is the same and belongs to The same type: DupontⅪV (for thin linear density yarn) and Dupont XV (for thick linear density yarn) have a good effect of spraying thi, its advantage is that the processing linear density range is large (50～1000dtex), and the processing speed is up to 800nn min; but when adjusting the processing linear density range. The operation is complicated and fouling is easy in the nozzle. Heberlein's T-100 or T-300 type Hema nozzle has the advantages of not easy to deposit and easy to adjust, its processing speed is about 650m/min, the feed thread density is 50~700dtex, suitable for processing low density or linear Clothing silk with medium density. EMAD's 150PRN type is suitable for processing raw yarns of 40~500dtex, and 3000PRN type is suitable for processing raw yarns of 500~10000dtex. The nozzle can feed four strands of raw yarn at the same time, and core-covered yarn can be made with different overfeed rates; 3000PRN type Nozzles are particularly suitable for making fancy decorative yarns. The nozzle is mainly composed of a shell, a guide wire needle, a venturi tube, a balloon or a baffle.