High speed airflow wire feeding device

Abstract

The high speed airflow wire feeding device includes a cylinder. The center of cylinder is arranged with a tow suction hole, a tow transition cavity and a tow center outlet hole. The tow suction hole is arranged on the top of the cylinder. The tow transition cavity is arranged below the tow suction hole. The shape of the tow transition cavity presents truncated cone-shaped. Small diameter end orientates to the tow suction hole. Large diameter end orientates to the tow center outlet hole. The upper of the cylinder is provided with a sector air cavity. The bottom of the sector air cavity is provided with a group of tangential air guide hole. One side of the cylinder is provided with a rising head groove. The rising head groove is interlinked with the tow suction hole, the tow transition cavity and the tow center outlet hole. An air seal ring is fixed with the cylinder, and provided a high pressure gas inlet hole. The pivot for lifting hood of the rising groove is on the cylinder. The tows which enter through the tow suction hole can quickly derive from the tow center outlet hole under the action of airflow to meet the requirement of spinning in high speed, ensure the tropism of the tows, avoid expansion of tow at the exit of spinneret and eliminate the divergence of tows.

Description

technical field [0001] The invention belongs to the technical field of spinning equipment, and in particular relates to a high-speed airflow wire feeding device. Background technique [0002] As known in the industry, the tow spun from the spinning box is cooled by the ring blowing cooling device, oiled by the oiling device and drawn by the drafting device, and then enters the wire feeding device through a series of guide rollers, and is introduced into the wire feeding device by the wire feeding device. Located in the silk barrel below it. It can be seen that the wire feeding device between the guide roller and the silk barrel is an indispensable part of the complete spinning equipment. [0003] The structure of the generally used wire feeding device in the prior art is by Figure 4 As shown, it includes a pair of godet rollers 10 whose cross-sectional shape is quincunx, and the pair of godet rollers 10 guides the tow 4 introduced by the guide rollers 20 into the yarn hold...

AI Technical Summary

Problems solved by technology

[0005] the above Figure 4 And the wire feeding device recommended by CN204237903U has at least the following four disadvantages: one, because it is all mechanical wire feeding, so the wire feeding speed is affected, and it is difficult to meet the high-speed spinning requirements; Therefore, on the one hand, it is easy to affect the orientation of the tow, and on the other hand, it will cause damage to the tow; third, because the speed of high-speed spinning is as high as 6000-8000m / min, or even higher, the nozzle of the spinning assembly The melt at the outlet of the spinneret hole of the wire plate, such as the spinning melt of polylactic acid fiber, will appear puffed, and puffing is a taboo that affects the evenness of the silk, especially when the wire feeding speed of the wire feeder and the spinning speed cannot be adjusted. When it is ideally adapted, the above-mentioned puffing situation will become more and more serious; Fourth, due to the mechanical traction type wire feeding, it will not only fail to produce the cohesion effect of the tow, but even cause the tow to diverge

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