Controlling method for coiler bottom layer connection press and polyester fiber coiled in the method

Abstract

The invention discloses a controlling method for coiler bottom layer connection press. The controlling method comprises the following steps: (1) a coiler normal repiece procedure keeping unchanged, and running a PLC program to control a first-step connection press when a spinning cake is coiled normally; (2) after finishing the first-step connection press in the step (1), switching to the procedure that the PLC program controlling a second-step connection press, namely, switching to the procedure of normal coiling connection press; (3) after a coil is full after normal coiling, switching to the procedure that the PLC program controlling the fist-step connection press, and forming a closed loop procedure: (4) switching to the procedure that the PLC program controlling the second-step connection press until the spinning cake is full. The invention further discloses melt direct spinning superfine porous differentiation polyester fiber coiled in the method. The control method for the coiler bottom layer connection press is simple in technology, can easily modulate at any time at production time, effectively avoids the phenomenon of broken filaments caused by connection press problems at spinning cake bottom layer coiling time, effectively avoids the phenomena that a spinning cake is not good in forming, silk stacking and unwinding, and increases the tail rate of post-processing.

Description

technical field [0001] The invention relates to the technical field of chemical fibers, in particular to a method for controlling the bottom contact pressure of a winding machine and a melt direct-spun ultrafine denier porous differentiated polyester fiber wound by the control method. 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. However, since existing winding machines such as the BWA40II winding machine model produced by Beijing Zhongli Machinery Engineering Co., Ltd. do not have segmental contact pressure, it is easy to cause bottom layer degradation when producing silk cakes with fine deniers of 75D144 / f and below. If the winding is not good, the thread is easy to snag, tangle and br...

AI Technical Summary

Problems solved by technology

However, since existing winding machines such as the BWA40II winding machine model produced by Beijing Zhongli Machinery Engineering Co., Ltd. do not have segmental contact pressure, it is easy to cause bottom layer degradation when producing silk cakes with fine deniers of 75D144 / f and below. If the winding is not good, the thread is easy to lap, tangle and break

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