Polyester Sewing Yarn Ring Twisting Machine

Hangzhou DengTe Textile Machinery CO., Ltd. is a technical innovation enterprise, which is located in the famous beautiful tourist city --Hangzhou. DT has unique research and innovative technology for the one-step twisting machine.

Using one-step twisting process of the upper fist twist, assembling, lower after twist is a big advantage of DT9808 Polyester Sewing Yarn Ring Twisting Machine CNC composite twisting machine which is based on DT98 series thread making machine.

And DT9808 Polyester Sewing Yarn Ring Twisting Machine CNC composite twisting machine owns Japan Mitsubishi frequency conversion control, pulling capstan roller, imported high speed steel containing oil, CNC forming, 1kg--1.5kg roll capacity without knot, high speed and is easy to operate, with high quality of man-made filament.

Applicable of chemical filament yarn twisting: sewing thread, embroidery thread, bags yarn, zipper yarn, knitting yarns etc...

Ply count range: 50D—1000D

Main Technical Date:

Information about textile industry

Polyester Sewing Yarn Ring Twisting Machine

Working principle of yarn twisting machine: the invention relates to a four fold twisting spindle driving device in a yarn twisting machine, belonging to the technical field of textile machinery and equipment. It mainly adopts two belt wheels respectively installed on the bearing seat, the bearing seat is installed on the support plate, the twisting disc is installed on the belt pulley, the two isolation covers are respectively installed on the two twisting discs, the yarn bobbin is placed in one of the isolation covers, the unwinding disc is placed on the top of the yarn bobbin, and the wire guide component is fixed on the frame. The utility model has the advantages of simple, compact and reasonable structure, low manufacturing cost, convenient use and installation, high working efficiency, high output and quality of yarn, safe and convenient operation, small yarn tension, and smooth double twisting and twisting process. It can be applied to cotton spinning, wool spinning and other different kinds of yarn Replace the double twist spindles commonly used in chemical fiber filament double twisting, staple fiber double twisting and real silk double twisting.

The influence of twisting on yarn properties mainly includes the following aspects:

（1） Influence of twisting on yarn strength and elongation

1. With the increasing of twisting degree, the friction between fibers increases, and the number of slip fibers decreases. Moreover, the uneven strength is improved by twisting. Therefore, the strength increases with the increase of twist coefficient. However, with the increase of twisting coefficient, the preload of the fiber due to inclined torsion increases, and the axial component force decreases. Therefore, the combined effect of the former favorable factor and the latter unfavorable factor will make the yarn reach the maximum strength at a certain twist factor. If the yarn is continuously twisted, the yarn strength will decrease. The twist factor is called the critical twist factor.

2. The breaking elongation of yarn consists of three parts

(1) Slip elongation (between fibers)

(2) The fiber itself is stretched by force

(3) Elongation resulting from a decrease in twist angle and diameter of a yarn.

Within the range of normal twist factor, the general trend is that the elongation at break increases with the increase of twist factor.

（2） Influence on yarn volume, weight and diameter

For yarn density and diameter, when the twist factor is large, the fibers in the yarn are dense, and the gap between fibers is reduced, so that the density of yarn increases and the diameter decreases. When the twist factor increases to a certain extent, the compressibility of the yarn decreases, and the density and diameter of the yarn change little. On the contrary, due to the excessive inclination of the fiber, the fiber becomes slightly thicker.

（3） Influence on yarn abrasion resistance

In a certain range, the wear resistance of yarn increases with the increase of twist factor.

（4） Influence of other properties of yarn

(1) Luster;

(2) Hand feeling;

(3) Evenness, etc.

When the twist factor is large, the fiber inclination angle is large, the luster is poor, and the handle is hard. However, with the increase of twist factor, the evenness quality will gradually decrease, showing a deterioration trend.

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