New Development Of Foreign Friction Spinning Machines

According to the relevant information, the new development of the friction spinning machine abroad in recent years is mainly manifested in the mechanism of yarn forming, the structure principle of spinning process parts and the universality of the raw materials and the development of the products.

Take the world's most famous friction spinning machine Equipment Manufacturing Company Austria Feiler company's latest DREF2/86 friction spinning machine as an example, compared with DREF2 and DREF3, the following improvements have been made:

1) a new negative pressure system is adopted in spinning cage to improve yarn strength and yarn quality.

2) the evacuation mode is decentralized and centralized, and the fan is changed from 1 to 1, which can reduce energy consumption by 20%~25%;

3) the winding mechanism is changed from the original machine to the machine platform to 90 in order to facilitate the workers to take care of it.

4) the new fancy drafting device has been added and controlled by computer to increase the variety of yarn.

5) use photoelectric device to ensure fiber strip feed.

6) use flat belt and "V" belt instead of round belt to ensure operation safety.

The spun yarn is expanded from original natural fiber and chemical fiber to synthetic filament, monofilament, stretch yarn and so on, and the yarn of various kinds of core spun yarn, slubby yarn, knot yarn, ring yarn and so on produced by spandex filament yarn are core spun yarn. The number of spinning spun yarn is 1~4tex, and the highest spinning speed can reach 300m/min.

Fibrous strips were fed with a quantitative single root of 25~30g/m, with two or more roots of 12~15g/m.

It can produce sheets, carpet, furniture, cloth, curtain wall cloth, filter cloth and other industrial fabrics, high strength fabrics and carpets. It can also produce jeans, work clothes and outdoor tents.

It is reported that the DREF5 friction spinning machine developed by the company and two other German companies is suitable for producing pure cotton, cotton / chemical fiber blended yarn and purified short fiber yarn with less than 50mm.

The spinning speed is up to 200m/min and the spinning number is 6.6~26.5tex, and its output is 2~2.5 times that of the airflow spinning machine, and it has fully realized automation.

At present, they are continuing to work together to develop more advanced DREF6, DREF7 and DREF10 models.

In addition, the Master Spinner friction spinning machine made by Lowell, England, is spinning principle: the dispersed single fiber is condensed onto the perforated rotary disk through the conveying pipe, and is absorbed onto the disk through the suction action of the hole. The fiber is brought to a hole without a hole due to the rotation of the disc. There is a narrow gap between the roller and the disc. When the fiber reaches the gap, it forms the yarn tail between the roller and the surface of the disc, and the yarn is drawn along the gap and wound on the cheese.

This machine can produce pure cotton, pure polyester, pure acrylic, pure viscose and blended yarn of cotton and various chemical fibers.

The length of the spun fiber is 40mm, the spinning number is 6.6~26.5tex, and the spinning speed can reach 300m/min.

The new friction spinning technology developed by Italy uses a circular, circular and rotating disc with a suction slot behind it to build a bus bar. The fiber is gathered and twisted by the friction force along the busbar direction provided by the twisting disc.

This will enable the various indicators in the spinning process to be improved.

The idea of using conical or hyperbolic dust cages or two cross net belt cages proposed by Germany's MAG company.

In the mesh belt, the fibers are evenly spread on the lower web belt and enter the twisting area with them, and then the yarns are twisted into the yarn to draw out laterally.

The friction spinning machine developed by Switzerland uses two pairs of rotary friction disc to spin artificial fibers, each of which is coated with polyester film to increase the friction between the fiber and the fiber. The fiber is twisted into yarn after being sucked into a spinning area by a tube through the feeding device.

The friction spinning machine developed by Czech is a method of making use of internal and external dust cage. It is characterized by a dust cage in another dust cage, the dust cage has mesh and suction device, and the dust cage outside is coated with polyester film.

The fiber is conveyed to a twisted area of two rotating cages with a tube and twisted into yarn by friction.