Filament doubling device in the production process of acetate fiber

Abstract

The invention provides a thread line combining device in the acetate fiber production process. The thread line combining device in the acetate fiber production process comprises a support, wherein a row of bundling rollers are distributed on the support, a climbing roller and a turning roller are arranged in the position above the middle of the row of bundling rollers, and a gathering roller is arranged in the position above the middle of the position between the climbing roller and the turning roller. According to the thread line combining device in the acetate fiber production process, each thread line is divided into a front part and a rear part, the front parts of the thread lines enter the gathering roller through the climbing roller after being collected by corresponding bundling rollers, the rear parts of the thread lines are turned around by the corresponding bundling rollers to be reversely collected, and then enter the gathering roller through the turning roller, thus, the front parts and the rear parts of the thread lines are gathered in the middle, and the gathered fiber bundles are combined. Therefore, it is ensured that each thread line has a thread way which is long enough before the thread line enters a crimping machine, tension of each thread line is ensured, and quality of the fiber bundles is ensured after the fiber bundles enter the crimping machine to be deformed in a crimped mode.

Description

technical field [0001] The invention relates to a device for merging individual filaments into fiber bundles through collecting rollers in the production process of acetate fibers, and belongs to the technical field of fiber filament paralleling. Background technique [0002] Acetate fiber is usually produced by dry spinning. Dissolve cellulose diacetate in acetone solvent containing a small amount of water to make a spinning solution. The spinning solution is transported to the spinneret through a metering pump and a candle wick filter. A number of tiny holes are distributed on the head, and the spinneret sprays out a thin stream of spinning solution, which is in contact with the hot air flow, and the solvent is volatilized to form a filament, and a single filament is drawn by each bundle roller Obtain fiber tow. [0003] The existing filament drawing technology of acetate fiber is as follows: figure 1 As shown, a row of bunching rollers is distributed on the support 2, a...

AI Technical Summary

Problems solved by technology

[0004] The above structure makes all the yarns run in the same direction. Since the distance between each bundle roller and the crimping machine is inconsistent, the length of the wire path of a single wire is different, and the tension of each wire is different. The tension of the wire with a short wire path is higher. Small, this makes the tension of some filaments in the fiber tow not enough after paralleling, and the quality of the fiber tow after crimping and deformation by the crimping machine is greatly affected

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