A joint control method for a rotor spinning machine

Abstract

The invention discloses an end connection control method of a rotor spinning machine. The joint control method includes following steps that (1), after yarn breaks, a feeding and yarn-guiding motor automatically stops action, automatically lifts up a creel, automatically opens a spinning apparatus to clean impurities and residual fiber in a rotor and then automatically closes the spinning apparatus; (2), a negative pressure passage of an auxiliary suction tube is opened to find yarn, and seed yarn is put into the auxiliary suction tube; (3), a negative pressure passage of a yarn storage suction tube is opened according to a preset control program in a system controller, the yarn-guiding motor rotates forwards for working, and a section of yarn which is guided out is stored in the yarn storage suction tube; (4), a scissor mechanism acts to cut off the seed yarn to complete yarn length fixing, and the seed yarn after being cut off automatically enters an untwisting suction tube for untwisting; (5), in the process of untwisting, yarn is guided into a yarn-guiding tube, the seed yarn is immersed in the rotor, then the yarn is guided out to complete end connection. The end connection control method is high in end connection quality and success rate and low in workload, and equipment is low in cost and simple to maintain.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a joint control method for a rotor spinning machine. Background technique [0002] At present, there are two types of joint control systems for rotor spinning machines: semi-automatic and fully automatic. [0003] Fully automatic spinning machine, in order to achieve full automation and high control precision, its yarn leading, feeding, traversing, winding, rotor and carding are all controlled by a single spindle, and it is also equipped with a piecing trolley, and the piecing process is single spindle Complete or with the aid of a joint trolley. This design ensures good joint consistency, high control precision, high joint efficiency, and less labor. However, the cost of equipment is high, maintenance requirements are high, and the probability of equipment failure increases accordingly. [0004] The semi-automatic spinning machines currently on the market are basically centra...

AI Technical Summary

Problems solved by technology

During the entire splicing process, the operator cannot leave the corresponding splicing position, and many manual actions are involved, resulting in a relatively large amount of labor, low splicing efficiency, and poor splicing consistency

Because of the centralized transmission, the control accuracy of the system is poor. At high speed, the joint success rate and joint quality are not high, and the joint efficiency is low.

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