One-step method for producing polyester and ammonia empty-covered yarn and changing yarn

Abstract

The invention discloses a one-step method for producing polyester-spandex empty-covered yarn for yarn replacement, which includes the following content: the spandex yarn can be replaced without running out, and the polyester POY yarn is not cut. Once the spandex yarn runs out, the wire detector will send a signal to the cutter to cut off the polyester POY yarn at the same time. This is the normal protection program of the machine and cannot be changed, otherwise it will affect the normal operation of the machine. In this case, both the polyester yarn and the spandex yarn must be raised again, and there will be abnormal yarns on the surface of the finished empty-covered yarn, and this part of the abnormal yarn must be stripped to increase the consumption of waste yarn. Spandex is used to change the yarn without running out. When the spandex yarn is about to be finished and the thin skin is seen in the paper tube, first use the doffing suction gun at the three rollers to suck the yarn tow, and pull off the spandex yarn that is about to be finished. The one-step method for producing polyester / spandex air-covered yarn replacement produces less waste silk, shortens the empty spindle time of the machine, has higher production efficiency, is simple and convenient to operate, and can effectively reduce the risk of work-related injuries.

Description

Technical field: [0001] The invention relates to the field of polyester fiber production, in particular to a method for producing polyester-spandex empty-covered yarn replacement filaments in one step on an integrated machine. Background technique: [0002] With the increasing demand for one-step polyester-spandex empty-covered yarn in the market, manufacturers are now implementing one-step polyester-spandex empty-covered yarn production by installing spandex devices on the texturing machines that originally produced polyester low-stretch yarns. More and more, which makes it particularly important whether the method of changing the wire is appropriate. When the traditional texturing machine produces low-stretch yarn, the polyester POY yarn is produced through the tail. Except for starting up and repairing the broken yarn, the yarn will not be re-raised under normal circumstances. However, in the production of polyester-spandex empty-covered yarn, since the spandex yarn cann...

AI Technical Summary

Problems solved by technology

Generally, the texturing machine has 288 spindle positions or more, so the method of re-starting the spindle one by one, firstly, a large amount of waste silk will be generated, and secondly, each spindle will generate empty time, which will affect the output of the whole machine, and ultimately affect the product. production cost

In addition, the traditional method is to complete the head-up process by one person. For the head-up of each spindle position, the operator has to run up and down on the head-up trolley with a height of more than 1 meter at least twice, and change a batch of yarns. , the number of times of running is very large, and it is very easy to cause the risk of work-related injuries caused by slipping