Device for producing fine denier POY (polyester pre-orientated yarn) by head spinning method

Abstract

The invention discloses a device for producing fine denier POY (polyester pre-orientated yarn) by a head spinning method, which comprises a winding rack and a spinneret plate with a spinneret plate distribution plate, wherein the spinneret plate distribution plate comprises a first part positioned at the left side and a second part positioned at the right side, and the first part and the second part are separated from each other; the spinneret plate comprises four rings of radially distributed spinneret holes, and the spinneret holes in each ring of spinneret holes are communicated by shallow grooves; each spinneret hole comprises a pilot hole groove and a microhole, and the pilot hole groove comprises a cavity, a first-stage cone and a second-stage cone which are sequentially arranged, so that two-stage cone angle transition is formed; and the microhole is arranged at the lower end of the second-stage cone, and a plurality of godets which are arranged in an S shape and a winding head are arranged in the winding rack. Therefore, the size unevenness linear density deviation value of products can be reduced, the tow tension can be stabilized, and the winding molding of tows can be improved.

Description

Technical field [0001] The invention relates to the technical field of spinning, in particular to a production device for producing fine denier POY (Polyester Pre-Oriented Yarn) by sub-end spinning. Background technique [0002] In the field of spinning technology, sub-end spinning is a technology of splitting filaments. The polyester melt is extruded through components to form tows. In conventional spinning, each component corresponds to a bundle of filaments. Sub-spinning is a component divided into two bundles. Silk, this spinning method is characterized by large output and low energy consumption. The production device for fine denier POY produced by Yatou spinning is an important equipment. It usually consists of a hopper, a screw extruder, a metering pump, a spinning box, a blowing device, a side blowing window, a nozzle, and a winding. The process mainly includes: melt, metering, spinning, side blowing forming, oiling and winding, etc. [0003] However, the products produce...

AI Technical Summary

Problems solved by technology

[0004] 1. When the melt is divided into two, the difference is large, resulting in uneven denier, and the usual denier uneven linear density deviation is ≥ 2.5%

[0005] 2. The winding part of the sub-end spinning equipment does not have a godet, the product tension fluctuates greatly, the winding formation is poor, and the unwinding of the bottom layer is poor, which limits the work of the upper large machine

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