Die head hot air temperature control method and control system applied to melt-blown fabric production

Abstract

The invention discloses a die head hot air temperature control method and system applied to melt-blown fabric production. The method comprises the following three steps: S1, collecting sensor data; S2, carrying out segmented control on different stages of equipment according to temperature data and pressure data by a control unit, wherein the stages comprise a starting stage and a conventional operation stage; and S3, carrying out temperature early warning. The system comprises a plurality of temperature sensors, a pressure sensor and a control unit, wherein the temperature sensors are used for being installed in an air heater furnace and at an air heater air outlet and a mold air inlet correspondingly, the pressure sensor is used for being installed at the mold air inlet, the control unitcontrols an air heater and a die through the die head hot air temperature control method applied to melt-blown cloth production. On one hand, the production stability and product quality of the melt-blown fabric are improved, and the available material range of the equipment is expanded; and on the other hand, damage caused by high heat generated by improper control of the die and other equipmentis avoided, and the die life is prolonged.

Description

technical field [0001] The invention relates to the field of melt-blown cloth production, in particular to a method and system for controlling the temperature of hot air in a die used in the production of melt-blown cloth. Background technique [0002] As a commonly used industrial material, meltblown cloth can be used in various occasions such as air and liquid filtration, isolation, absorption, etc. Improving the production quality and production efficiency of meltblown cloth is of great significance to light industry production. [0003] The melt-blown process requires a large amount of hot air. The air heated by the air heater enters the melt-blown die head through the air inlet of the mold. In the common preparation process of melt-blown cloth, the most important part is to obtain high-temperature molten materials Finally, use high-temperature, high-speed hot air to blow the thin stream of melt ejected from the spinneret into very fine fibers. After these fibers are co...

AI Technical Summary

Problems solved by technology

However, the conventional temperature control fluctuates greatly, and there will be high temperature or the temperature does not meet the standard, which will lead to different quality and poor continuity of the produced cloth.

Improper temperature control may also cause the waste heat of the air heater to be difficult to dissipate, resulting in local high temperature and damage to the equipment

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