Air pressure control system and method for air jet loom

Abstract

The invention provides an air pressure regulating system of a jet loom, which can automatically regulate air pressure and has low cost, and a method thereof. The air pressure regulating system of the jet loom comprises an air storage tank, a switching solenoid valve, an air pressure sensor, and a control unit, wherein the switching solenoid valve is positioned at a compressed air inlet of the air storage tank; the air pressure sensor is positioned inside the air storage tank; and the control unit is respectively connected with the switching solenoid valve and the air pressure sensor, and is used for the acquisition operation of a signal and for controlling the on-off of the switching solenoid valve according to the operation result. In the air pressure regulating system of the jet loom and the method thereof, an expensive servo valve is replaced with the cheap switching solenoid valve; the switching frequency and the duty ratio of the switching solenoid valve are regulated in real time in order that the pressure in the air storage tank reaches the required stable air pressure value, therefore, not only is the requirement of the jet loom on the stability of the air pressure value met, but also the cost of the control system is greatly reduced.

Description

technical field [0001] The invention relates to an air-jet loom device, in particular to an air-pressure control system and method for an air-jet loom. Background technique [0002] Air-jet looms have high requirements for air pressure adjustment and air pressure stability, and are usually adjusted by manual pressure regulating valves. Every time the variety of the fabric is changed, the air pressure must be adjusted according to the process requirements. Taking the double-jet model as an example, there are three pressure regulating valves to adjust the air pressure of the main spray 1, the pressure of the main spray 2, and the pressure of the auxiliary spray. Often spray 2 air pressure, etc., need to adjust more. Other models such as four-jet and six-jet need more adjustments. During the weaving process of the air-jet loom, the air pressure of the air supply often fluctuates, the replacement of the weft yarn bobbin and the gradual decrease in diameter, the gradual increa...

AI Technical Summary

Problems solved by technology

Because the price of the electronically controlled proportional valve (servo valve) is too expensive, it is difficult for this method to be widely used in the market. The cost reason is the key reason restricting the promotion of this technology.

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