Manufacturing method of backup spinning nozzle

Abstract

The invention relates to a manufacturing method of a backup spinning nozzle. A debugged spinning nozzle is removed from a spinning machine, and a silica gel plug is used for quickly sealing the serum inlet of the spinning nozzle; low-viscosity synthetic ester is applied on the surface of the spinning nozzle; the spinning nozzle is wrapped by a freshness preservation film, and put into a vacuum packaging bag to be vacuumized; and the spinning nozzle which is packaged under a vacuum condition is put into a spinning nozzle box to be stored at room temperature. The manufacturing method of the backup spinning nozzle has a higher spinning nozzle use success rate. The manufacturing method and the operation are simple, no acetone or low temperature is used for storage, no hidden safety hazard exists, and the cost is low. The manufacturing method of the backup spinning nozzle can be widely applied to production startup, the operation of replacing the spinning nozzle due to the replacement of tow specification and the random replacement of abnormal spinnerets of the spinning nozzle on a production line, significantly the broken head recovery time and the startup time or the time for replacing the spinning nozzle due to the replacement of the tow specification is reduced, the product quality can be improved, the cost can be reduced, and the production efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of spinning production in the production of fibers or filaments, especially in the production of cellulose acetate tow for cigarettes, and specifically relates to a method for making a spare spinneret cap. Background technique [0002] Cigarette diacetate tow is widely used as cigarette filter material because of its good processing performance and excellent harmful substance cut-off performance. The existing production of cellulose diacetate tow for cigarettes is to use acetone as a slurry prepared as a solvent, which is filtered and sprayed out through a spinneret, and then processed to form cellulose diacetate tow for cigarettes. Usually, each spinning machine uses about 280 spinnerets for production, and a medium-scale tow factory is configured with 4 spinning machines, and a total of about 1120 spinnerets are used online at the same time. If any spinner cap on the production line is abnormal, or when t...

AI Technical Summary

Problems solved by technology

[0003] The above method of using the spinneret has the following defects: 1) Due to the long operation time of replacing the new spinneret, the corresponding time for the production of the tow due to the fluctuation of the product quality due to the wire filling is long, and multiple spinnerettes in one production line In the case of abnormal spinning, increase the amount of waste

According to the use of 280 spinneret caps in one spinning machine, the rate of replacement of the spinneret caps is 3.0. To complete the start-up of a spinning machine or to change the specifications of the tow, it is necessary to replace 840 spinneret caps, and the corresponding replacement work large amount, long time

3) After driving, the spinneret cleaning workload is heavy and the time is concentrated

5) The rate of broken ends is high after driving or replacing the spinneret due to changing the specifications of the tow

It is not suitable for the replacement at any time of the abnormal spinning of the spinneret on the daily production line

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