Control method and control device for reducing yarn breakage of spinning machine

Abstract

The invention discloses a control method for reducing yarn breakage of spinning machine. The control method includes: a starting procedure, a small yarn spinning procedure, a medium yarn spinning procedure, a large yarn spinning procedure and a doffing procedure. When an air blower is started, a ring plate moves upward to a start spinning position, then continue to move upward for the time of Pe; when the ring plate moves upward to an appropriate spinning position, a main motor begins to slow down the speed, the ring plate moves downward to the start spinning position for the time of Pf; then the ring plate moves upward to the appropriate spinning position, after that, moves downward to the start spinning position, and accordingly a balloon can be opened timely, the balloon wavelength is shortened, the yarn tension is reduced, and the yarn breakage rate in small yarn spinning procedure is dramatically reduced. In addition, the ring plate motor is protected, the run time of the ring plate motor can be set to 5 seconds since the start of the air blower, and if the spinning position sensor fails to work, the ring plate motor stops moving upwards in less than 5 seconds.

Description

technical field [0001] The invention relates to a control method for the spinning process of a spinning frame, which is suitable for the spinning frame, in particular to a control method and a device for reducing yarn breakage of the spinning frame, and belongs to the technical field of textiles. Background technique [0002] In the textile industry, the spinning frame is usually used to spin on the bobbin 1, and reducing the breakage rate of the spinning frame during spinning is the goal that the industry has been pursuing. Traditional equipment still in use in the market, such as FA502, FA503 and A513, etc., mainly use AC contactors to control the spinning process of the entire spinning frame. control. In order to reduce the yarn breakage rate of the spinning frame, at present, frequency converters are generally used to control it. However, due to the large number of old spinning frames mentioned above in the textile industry, these spinning frames are transformed. The fr...

AI Technical Summary

Problems solved by technology

Traditional equipment still in use in the market, such as FA502, FA503 and A513, etc., mainly use AC contactors to control the spinning process of the entire spinning frame. control

In order to reduce the yarn breakage rate of the spinning frame, at present, frequency converters are generally used to control the realization. However, due to the large number of old spinning frames mentioned above in the textile industry, these spinning frames are transformed. The frequency converter of each device is combined with the The cost of PLC is nearly 10,000 yuan. It is very difficult for many textile enterprises using old equipment to realize this method of control, which affects the product quality and output of these enterprises.

On the other hand, flying flowers are easy to block the heat dissipation system of the frequency converter, which is the disadvantage of the old type of spinning frame controlled by the frequency converter, and it is also the main reason that the frequency converter is easy to burn out or even cause a fire after being used for a long time

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