Control method for preventing POY (Pre-Oriented Yarn) fineness from generating midway variation

Abstract

The invention provides a control method for preventing POY (Pre-Oriented Yarn) fineness from generating midway variation. The method provides a control system for preventing the POY fineness from generating the midway variation. The system comprises a melt metering pump frequency converter for controlling a rotary speed of a melt metering pump, a winding machine controller for controlling a winding machine to operate and a PLC (Programmable Logic Controller), wherein the melt metering pump frequency converter is connected with the melt metering pump for spinning POY; the winding machine controller is connected with the winding machine for spinning the POY; the melt metering pump frequency converter and the winding machine controller are connected with the PLC respectively. According to the control method, the problems that the POY metering pump has faults and manual faulty operation is not found in time to cause that the POY middle fineness becomes small can be reduced greatly; therefore, the problem that the dyeing is not uniform, caused by the fineness, and the amount of waste silks are reduced.

Description

technical field [0001] The invention belongs to the field of fiber manufacturing, and in particular relates to a control method for preventing variation in the fineness of POY silk. Background technique [0002] In recent years, the technological progress and competitiveness of China's chemical fiber industry with polyester as the main body have been greatly improved, and the market's demand for various functionally differentiated new varieties with excellent performance and unique styles has also rapidly expanded. [0003] POY yarn is also called pre-oriented yarn, which is a kind of polyester yarn. In the prior art, POY yarn spinning equipment usually consists of main parts such as spinning box, side blower window, oiling parts, tunnel, network and winding machine. Composition, the process mainly includes the following steps: melt, metering, spinning, side blowing cooling molding, oiling, winding. [0004] Due to the limitation of production equipment, the existing produc...

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Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a control method for preventing the variation of POY yarn fineness on the way. By adopting the present invention, it can greatly reduce the intermediate fineness of POY yarns caused by failure of POY metering pumps and failure to find out in time due to human error operations. problems, thereby reducing the problem of uneven dyeing caused by fineness and the amount of waste silk

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