Spinning device for dry-jetting and wet-spinning method

Abstract

A spinning device for a dry-jetting and wet-spinning method comprises a base, wherein a sand cavity is formed in the base, a distributing plate, a partition plate, a multi-layer filter screen and a spinneret plate are sequentially arranged in the sand cavity from top to bottom. A gland moving in the axial direction is installed in the base, arranged above the sand cavity and provided with a size flow channel, an inlet of the size flow channel is communicated with a size outlet of a spinning box, and an outlet of the size flow channel is communicated with the sand cavity; the distributing plate is arranged at the downstream position of the outlet of the size flow channel, and a plurality of flow guide holes are evenly distributed in the distributing plate; flow guiding holes are evenly distributed in the partition plate, and the portion, between the partition plate and the distributing plate, of the sand cavity is filled with filter sand; a certain gap is formed between the multi-layer filter screen and the partition plate to form a pressure stabilizing chamber; the spinneret plate makes close contact with the lower surface of the multi-layer filter screen. The spinning device is good in sealing effect, not prone to leaking size, the size flows without dead angles, and therefore the performance of fibers is ensured.

Description

technical field [0001] The invention relates to the technical field of fiber spinning, in particular to a dry-jet wet spinning spinning device. Background technique [0002] At present, the dry-jet wet spinning method is a chemical fiber processing method that combines the characteristics of dry spinning and wet spinning. Layer (dry section), and then into the coagulation bath, the dry section is very short, but it has a significant impact on the solidification phase separation and fiber structure. The solvent in the thin stream of spinning solution extruded from the air layer evaporates rapidly, and a thin dense layer is formed on the surface. After the thin stream enters the coagulation bath, the double diffusion speed can be suppressed; due to the expansion effect at the exit of the spinneret, relying on fine The gravity of the stream itself and the drawing force flow down, and then the positive drawing of dry jet wet spinning can make the expanded part be drawn and thin...

AI Technical Summary

Problems solved by technology

At present, most of the spinning components used in dry and wet spinning are melt spinning components, which have the following problems: the cooperation between the various parts is not tight enough, the sealing effect is not good, and the slurry is easy to leak, the assembly and disassembly are complicated, and there are dead angles in the slurry flow. This results in fibers with poorer performance

Images