A tornado cyclone electrospinning nozzle device for preparing nano-twisted yarns

Abstract

The invention discloses a tornado cyclone type device for preparing a nano twisting electrostatic spinning nozzle. The tornado cyclone type device for preparing the nano twisting electrostatic spinning nozzle mainly comprises an airflow guide pipe, a spinning feed cylinder, a connecting piece, an air duct, an air compressor, a pore electrode plate, a high voltage electrostatic generator, a twisting collecting roller, a twisting degree keeping rotary table, tangential airflow holes, bolts, heating rings and a temperature sensor; the airflow guide pipe, the spinning feed cylinder and the connecting piece are coaxially connected with one another through threads from inside to outside, a vertical airflow inlet of the upper end of the airflow guide pipe is connected with the air compressor , a feed inlet is located on the upper surface of the connecting piece which is connected with the air duct through the bolts, and the tangential airflow holes are located at the lower end of the air duct and connected with the air compressor; the pore electrode plate is located under the nozzle, the twisting collecting roller and the twisting degree keeping rotary table are located under the pore electrode plate which is communicated with the high voltage electrostatic generator, and the spinning feed cylinder is grounded. According to the tornado cyclone type device for preparing the nano twisting electrostatic spinning nozzle, tornado cyclone is formed through the coupling of airflow in the vertical direction and airflow in the tangential direction to conduct twisting on fibers directly, the process is reduced, and the twisting degree of twisting yarns can be adjusted through adjusting the airflow velocity.

Description

technical field [0001] The invention relates to a tornado whirlwind electrospinning nozzle device for preparing nano-twisted yarns, belonging to the field of electrospinning. Background technique [0002] With the rapid development of science and technology, society has put forward higher requirements for nanomaterials. Electrospinning has attracted much attention because it can prepare nanoscale fibers and has become a research hotspot in recent years. It is the fastest and most effective method. [0003] Twisting is the most critical step in adding twist to fiber yarn and filament. The core equipment is the twisting machine and the twisting mechanism inside the spinning equipment. Multiple strands of single yarn are combined by twisting. However, traditional twisting machines have equipment It has defects such as bulkiness and complex structure. At the same time, it is difficult to clean up the mechanism after the yarn is strangled, and it is difficult to achieve micro-na...

AI Technical Summary

Problems solved by technology

[0003] Twisting is the most critical step in adding twist to fiber yarn and filament. The core equipment is the twisting machine and the twisting mechanism inside the spinning equipment. Multiple strands of single yarn are combined by twisting. However, traditional twisting machines have equipment Bulk, complex structure and other defects, at the same time, it is difficult to clean when the yarn is strangled by the mechanism, and it is not easy to achieve micro-nano level twisting

The existing invention patent "A high-speed preparation device and process of centrifugal electrospinning nano-twisted yarn" (CN103409861 A) discloses that by combining electrospinning technology and centrifugal spinning technology, and using the combination of air compressor and cyclone vacuum generator A swirling airflow is formed in the chamber to guide the fibers to form twisted yarns, but the structure of the device is complex, and the vacuum suction holes will suck the fibers into the chamber and cause blockage, which will eventually lead to twisting failure

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