Production method of false twist draw-texturing yarns and detection method of over-tail joints in yarn false twist draw-texturing process

Abstract

The invention discloses a production method of false twist draw-texturing yarns and a detection method of over-tail joints in the yarn false twist draw-texturing process. The production method of thefalse twist draw-texturing yarns comprises the steps of enabling multiple yarn coils sequentially connected end to end to be subjected to a false twist draw-texturing process; (1) enabling a yarn of the multiple yarn coils sequentially connected end to end to pass through a detection channel and then to be subjected to the false twist draw-texturing process, wherein the detection channel collectsthe position change information of the next yarn coil sequentially connected end to end switched from one yarn coil with the yarn passing through completely, and each collected position change information identifies an over-tail joint; and (2), when collecting one position change information, replacing a yarn coil with one over-tail joint coiled after false twist draw-texturing, and re-coiling a new false twist draw-texturing yarn, and so on. According to the method, the over-tail joints can be easily cleared, the quality of yarn coils is ensured, and meanwhile, through the automatic detectionof the over-tail joint information, the mis-recording or missing phenomenon easily occurred by excessive reliance on manual intervention is avoided, so that the efficiency is improved and the cost isreduced.

Description

technical field [0001] The invention belongs to the field of textiles, and in particular relates to a production method for false twisting and texturing of yarns and a detection method for over-tail joints in the process of false twisting and texturing of yarns. Background technique [0002] "Yarn false-twisted texturing" refers to the silk yarn with certain characteristic properties obtained after a certain yarn is false-twisted texturized, including but not limited to polyester yarns that are more common in the textile field, such as the POY ( Pre-oriented yarn (high-speed spinning)) and DTY (drawn textured yarn, commonly known as polyester low elastic yarn), DTY uses polyester pre-oriented yarn (referred to as POY) as the raw yarn and then processed through stretching and false twist deformation After the production, in this process, since POY exists in rolls, there must be a tail and a head in the process of making it into DTY. There are two production methods, one is wh...

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Problems solved by technology

[0002] "Yarn false-twisted texturing" refers to a yarn with certain characteristic properties after false-twisted texturing, including but not limited to the more common polyester yarns in the textile field, such as the POY ( Pre-oriented yarn (high-speed spinning)) and DTY (drawn textured yarn, usually called polyester low-elastic yarn), DTY uses polyester pre-oriented yarn (referred to as POY) as the original yarn and then processed through stretching and false twist deformation. Afterwards, in this process, since POY exists in rolls, there must be a tail and a head in the process of making it into DTY. There are two production methods, one is when After one roll of POY yarn is produced, another roll is replaced. This method requires frequent manual lifting of the new yarn roll, which is inefficient and overly dependent on manual work. It is easy to make mistakes or forget to lift the roll, and there are many waste yarns. Another way is: in order to improve production efficiency and other purposes, the head and tail between multiple POY rolls are generally connected in sequence in production. Some of the DTY rolls will contain over-end joints (for example, it is common in the prior art, usually a 15 kg POY is false twisted and bombarded to make three 5 kg DTYs, and the last DTY usually exists Over-end joints), in order to improve the grade of DTY silk rolls, at present, the information of such over-end joints is usually recorded manually, and then cleared in the later stage, but this method also relies too much on manual intervention, which is prone to misrecording Phenomena or omissions, and the efficiency is low, the labor cost is high, and there may be more waste silk, and the cost of raw materials is not easy to reduce

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