Automatic acceleration and deceleration control system and method for spinning metering pumps

Abstract

The invention discloses an automatic acceleration and deceleration control system and method for spinning metering pumps. The system comprises multiple metering pumps, multiple frequency converters, multiple winding machines and a control module. The winding machines are electrically connected with the control module and used for detecting the working states of the winding machines and judging whether or not the winding machines are in a halt state; the frequency converters are electrically connected with the control module and used for detecting the working states of the frequency convertersand counting the deceleration quantitative proportion of the frequency converters; the control module gives out speed adjustment signals to the frequency converters according to the logical judgment;the frequency converters are further connected with the metering pumps and used for controlling acceleration operation or deceleration operation of the metering pumps according to the speed adjustmentsignals. According to the automatic acceleration and deceleration control system and method for the spinning metering pumps, waste silk generation can be reduced, and the situation can be avoided that the pressure of a spinning melt exceeds the limit.

Description

technical field [0001] The invention relates to the field of spinning, in particular to an automatic acceleration and deceleration control system of a spinning metering pump and a method thereof. Background technique [0002] A spinning machine is a machine that makes a fiber-forming polymer solution or melt into filaments. According to different fiber spinning methods, spinning machines are divided into wet spinning machines, melt spinning machines, and dry spinning machines. Three types of machines. Among them, the spinning process of the melt spinning machine includes: the polyester material enters the screw extruder and is extruded, melted into a spinning melt, and continuously transported to the spinning box through the melt pipeline. A metering pump is installed on the spinning box, and the spinning melt is passed from the metering pump to the spinning assembly at a uniform flow rate, and after being filtered, it is extruded into bundles from the small holes on the sp...

AI Technical Summary

Problems solved by technology

However, during the above spinning process, abnormal production conditions such as spinning trimming, winding machine failure, and broken filaments will occur during spinning production. The machine stops working, but the speed of the metering pump cannot be automatically reduced, and the spinneret continues to spin, resulting in an increase in the amount of waste silk

If the metering pump is stopped to reduce waste silk, the spinneret will be easily blocked; moreover, when the metering pump is stopped at the same time or the deceleration is large, it is easy to cause the pressure fluctuation of the spinning melt to exceed the limit

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