A kind of preparation method and equipment of high-strength polyester mother silk

Abstract

The invention discloses a method for preparing high-strength terylene mother filaments and equipment thereof. In the invention, a filament bundle sprayed out from a spinning tank component is cooled by laterally blown air, passes through a passage, and is coated with oil for the first time and treated by a tensioning rod (4), then the tension of the filament bundle is regulated by a tension regulator (5) to a first tension which is kept between 40 and 80cN, and the strength of the single-filament product reaches 7.0 to 8.0cN / dtex. In the invention, by using the tension controller, the problemof normal roll winding failure caused by small first tension due to a multi-stage drawing process is solved, the tension of each single filament among the mother filament is controlled, the phenomenon that adverse winding and breaking in later pass due to local filament bundle length inconsistency caused by violent filament bundle vibration is eliminated, and the requirements of the production process and products of high-strength terylene mother filaments are met.

Description

Technical field [0001] The present invention involves a preparation method and its production equipment for a high -intensity synthetic fiber, which specializes in the preparation method and equipment of a polyester high -intensity mother silk. Background technique [0002] Polyester high -strength silk refers to polyester fiber with high strength. High -intensity polyester fiber compound wire is generally used in industrial fields such as car tire lines, light box cloths, conveyor belts, and fire bands.Generally, the single -silk fracture intensity of civilian fibers is less than 5cn / dtex. At present, fiber with a polyester single -wire single -fruition on the market is about 5CN / DTEX, which is mainly used for fabric products such as headscarves, masks, gap cloths. [0003] The literature "Discussion on Polyester Industry Silk Production Equipment and Craft route" ([J] J] Polyester Industry, VO1.24, NO.29-29), the equipment characteristics, process, process conditions and proces...

AI Technical Summary

Problems solved by technology

The Chinese utility model patent with the publication number CN201588018 provides a device for producing polymer fiber separation mother silk. The technical solution is to install a third drafting roller group between the second spinning hot roller group and the winding machine ; Due to the use of three-stage drafting in this technical solution, the strength of the product cannot reach 7.0 cN / dtex

If the strength required above is to be achieved, multi-stage drafting must be carried out. However, multi-stage drafting will also bring difficulties to production, mainly because the speed of the first drafting roller is too low and the first tension is too low, which will form The winding roll is generated on the first roll, the tow cannot be formed and drawn to the second drafting roll, and the existing preparation process and equipment cannot meet the production requirements of the product

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