SU494875A3 - Apparatus for producing high volume yarn - Google Patents

Description

(54) DEVICE FOR OBTAINING A HIGH-VOLUME THREAD

The invention relates to a device for producing a high-volume yarn by pressing.

A device for producing a high-volume filament is known, comprising a conveying drum, a nozzle for feeding the filament and means for withdrawing it.

On such a device, it is impossible to obtain filaments with small corrugations, since when placing the filament directly on the drum surface, the density of the compressed mass is low.

In order to obtain a yarn with small corrugations, the proposed device is equipped with a camera mounted on the drum so that its outer surface is the bottom of the chamber, with one of its walls made perforated and the nozzle outlet is placed in the chamber.

In order to obtain stable corrugations, the device is equipped with a device for feeding the agent into the chamber.

FIG. 1 shows the proposed device, a general view; in fig. 2- camera and part of the working surface of the drum; in fig. 3-6 are embodiments of the camera.

The device contains a power supply pair 1, a discharge pair 2 and 3, a nozzle 4 for feeding

thread transporting the drum 5 with the camera 6 mounted on it.

Inside the drum, a device 7 is installed to supply a cooling agent to the chamber and the partition 8, preventing the heated medium from entering the cooling device.

Chamber 6 is formed by side walls 9 and 10 and a lid 11, at the bottom of which is a screening surface 12 surrounding the working surface of the drum. The presence of this surface serves to drain the heated medium from the chamber.

The ejector nozzle 4 is rationalized so that its outlet is located inside the chamber.

FIG. 3 shows one of the variants of the structurally executed camera. There is a perforation in the cover 11, through which the chamber communicates with the cavity 13 connected to a source of heated medium. In zone 14, the compressed mass is cooled, and the cooling agent is removed as well & through perforation.

The shielding surface can be made with the protrusions 15, and between them - the slots of the outlet of the heated medium. The same protrusions may have side walls of the chamber (Fig. 5, 6).

The device works as follows.

The original thread 16 is fed through the feed pair 1 into the nozzle 4, where the heated medium is simultaneously dropped, with which the thread is pushed inside the chamber 16, while the speed of movement of the drum surface is lower than the feed rate of the thread into the chamber.

During the processing of the thread in the chamber, due to the fact that the pressed mass is located in a confined space, the thread acquires corrugations, which are fixed by the action of a cooling agent.

The crimped yarn is withdrawn by the outlet pairs 2 and 3. Before feeding the yarn into the nozzle, it can be heated. In addition, the device can be installed directly after the pulling device.

The proposed device can process several threads simultaneously with their subsequent separation.

Subject invention

An apparatus for producing a high volume filament comprising a conveying drum, a nozzle for feeding the filament and a means for withdrawing it, characterized in that, in order to be able to produce a thread with small corrugations, it is provided with a camera mounted on the drum so that its outer surface is the bottom chamber, while one of the walls is perforated, and the outlet nozzle size is in the chamber.

2. The device according to claim 1, characterized in that it has a device for feeding a cooling agent into the chamber.

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