Intelligent control method and device for preshrinking rate of preshrinking woven fabric

Abstract

The invention discloses an intelligent control method and device for the preshrinking rate of a preshrinking woven fabric. The control device comprises a rubber blanket cloth shrinking unit, a wool blanket drying unit and a central processing unit, the rubber blanket cloth shrinking unit comprises a pressing roller, a pressure bearing roller, a rubber blanket and a pressing motor, a first fabric tension adjusting mechanism and a first length measuring mechanism are arranged on the cloth inlet side of the pressure bearing roller, a second fabric tension adjusting mechanism and a second length measuring mechanism are arranged on the cloth outlet side of the pressure bearing roller, and the first fabric tension adjusting mechanism, the first length measuring mechanism, the second fabric tension adjusting mechanism, the second length measuring mechanism and the pressing motor are connected with the central processing unit. A temperature sensor for detecting the temperature of the pressure bearing roller and a displacement measuring mechanism for detecting the displacement of the pressing roller are arranged on the rubber blanket cloth shrinking unit, and the temperature sensor and the displacement measuring mechanism are connected with the central processing unit. According to the intelligent control method and device, the fabric preshrinking rate can be accurately detected online, and the deviation between the actually-measured preshrinking rate and the target preshrinking rate can be avoided or greatly reduced.

Description

technical field [0001] The invention relates to a pre-shrinking machine, in particular to a fabric pre-shrinking rate control method and a control device of the pre-shrinking machine, and belongs to the technical field of dyeing and finishing equipment and technology. Background technique [0002] Fabric pre-shrinking is done by pre-shrinking machine. The pre-shrinking machine is mainly composed of three parts: the wet machine, the rubber blanket shrinking unit and the felt drying unit; the wet machine wets the fabric to make the fabric plastic, and the rubber blanket shrinking unit mainly completes the pre-shrinking of the fabric. , The blanket drying unit dries and sorts the pre-shrunk fabric and controls the moisture regain of the fabric, and stabilizes the pre-shrinkage rate of the fabric to improve the feel of the fabric. The so-called fabric shrinkage rate is the length percentage of the fabric before and after mechanical preshrinking. [0003] When the fabric is pre...

AI Technical Summary

Problems solved by technology

Since the fabric is affected by subjective factors such as artificial pulling and measurement during the measurement of the pre-shrinkage rate, there is a large deviation between the measured pre-shrinkage rate and the target pre-shrinkage rate. Pre-shrinkage rate, the control of pre-shrinkage rate is seriously lagging behind, the pre-shrinkage rate fluctuates greatly, is inaccurate, and the efficiency is low, and the product quality cannot be guaranteed

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