合股德赢入口机双丝道生产单股丝的技术改造/Technical Transformation of Single Strand Filament Produced by Double-Threaded Machine
Because the ordinary polyester low-elastic yarn has a part of residual torque on the thread after processing, these residual torques can not meet the requirements of high-end fabrics for flat surface. In order to eliminate these residual torques, the flawless effect is achieved. It is currently common practice to use a strand of S捻 and a strand of Z捻 to counter the residual torque. This requires the use of a plywood machine with two false twisters per spindle. The yarns of S捻 and Z捻 are separately produced, and then, after the two rollers, they are plied into a filament through a network nozzle. With the industrial upgrading and the continuous development of high-end textiles. The joint-stock machine has also become the object of competition among major chemical fiber companies.
However, the chemical fiber industry has obvious cyclicality and seasonality, and the joint yarn cannot always become the darling of the market. As the market gradually becomes cold, the market for oversupply of the strands is constantly appearing. At this time, if the stock machine is transformed into a single-strand machine, the ultra-fine fiber required for the production market in the down market of the joint stock wire can not only guarantee the operating rate of the stock machine. , can greatly increase the added value of the product. This paper introduces the technical transformation of the single-strand yarn produced by the twin-wire machine of the joint-strength machine.
整理 | 纺织干货
Finishing | Textile dry goods
文 | 徐春建 王海峰 孙金宝
Wen | Xu Chunjian Wang Haifeng Sun Jinbao
设备及原料(Equipment and raw materials)
设备：ATF1500型德赢入口机。日本TMT机械株式会社生产 。原料 ：56 dtex/36f 规格半 消光 POY，江苏盛虹科技股份有限公司生产 。
Equipment: ATF1500 type texturing machine. Produced by Japan TMT Machinery Co., Ltd. Raw materials: 56 dtex/36f size semi-extinction POY, produced by Jiangsu Shenghong Technology Co., Ltd.
合股德赢入口机工艺流程(Joint stocking machine process)
合股德赢入口机每个锭位由两根 POY同时喂入 ，在第一喂入罗拉和第二喂入罗拉之间每根 POY 有单独的丝路 ，从第二喂入罗拉后两根丝由网络喷嘴合股，形成合股丝直至卷绕成形 。其工艺流程见图1。
Each of the positions of the punctuation machine is fed by two POYs at the same time. There is a separate wire path for each POY between the first feeding roller and the second feeding roller, and the two wires are separated from the second feeding roller. The network nozzles are plied to form a plied yarn until the winding is formed. The process flow is shown in Figure 1.
从上述工艺流程可以看出，要在一个锭位 上生产出两锭DTY，就要将第二喂入罗拉后的两根丝条分开，形成各自单独的丝路，其中喂入罗拉和上油罗拉可以共用，见图 2。
It can be seen from the above process that to produce two DTYs on one spindle position, the two filaments after the second feeding roller are separated to form separate filament paths, in which the rollers are fed and oiled. Rolls can be shared, see Figure 2.
结果与讨论（Results and discussion）
网络喷嘴的改造（Network nozzle modification）
In order to improve the cohesiveness of the DTY, it is necessary to use a compressed air to blow a regular knot on the yarn through a network nozzle, and a nozzle is used for the two filaments when producing a twisted yarn, as shown in Fig. 3a. Since the interval between the nozzles is small, it is no longer possible to install a nozzle. Therefore, a method of adding a row of pipes under the original pipe is selected, and the positions are staggered to ensure a smooth silk path, as shown in Fig. 3b.
定型热箱的改造（Transformation of shaped hot box）
ATF1500型德赢入口机的定型热箱采用联苯热箱管式加热 ，生产合股丝时一个锭位的两 根丝条进入一根热箱管 ，见图 4a。如果不进行改造，在定型热箱后再将两根丝条分开的难度非常大，所以要做到一根丝进入一根热箱管。
The shaped hot box of the ATF1500 type texturing machine is heated by biphenyl hot box tube. When the plied yarn is produced, two filaments of one spindle position enter a hot box tube, as shown in Figure 4a. If it is not modified, it is very difficult to separate the two wires after sizing the hot box, so a wire is required to enter a hot box tube.
The design of the ATF1500 type texturing machine that is adjacent to the two hot-spot tubes of the two spindle positions just leaves room for the addition of the hot box tube. After the hot box is doubled (see Figure 4b), when the temperature is set to 150 °C, the temperature deviation between the measured spindle positions is within 0.5 °C, which fully meets the process requirements.
卷绕方式的改造（Transformation of winding method）
如何实现在一个卷绕罗拉上同时卷两锭丝是本次技术改造的难点。因为增加纸管夹盘没有空间，所以选择纸管连接器将两根142.5mm的短纸管连接形成一根长纸管。为保证连接器在两根短纸管的中间，在连接器上设计了宽5mm的定位圈，这样两根短 纸管加定位圈的长度与单锭卷绕纸管长度290mm一致，见图5b。ATF1500型德赢入口机 采用单锭皮带式横动卷绕方式。可以在横动皮带上再加装一个横动导丝器，这样一个卷绕罗拉上就可以同时卷两锭丝卷。
How to realize the simultaneous winding of two spindles on one winding roller is the difficulty of this technical transformation. Since there is no space for adding the paper tube chuck, the paper tube connector is selected to connect two 142.5 mm short paper tubes to form a long paper tube. In order to ensure that the connector is in the middle of the two short paper tubes, a 5mm wide positioning ring is designed on the connector, so that the length of the two short paper tubes plus the positioning ring is the same as the length of the single-rolled paper tube 290mm, see Figure 5b . ATF1500 type texturing machine adopts single-spindle belt type traverse winding method. A traverse guide can be added to the traversing belt so that one winding roller can simultaneously roll two rolls.
改造后的产品质量（Product quality after transformation）
The DTY products (33dtex / 36f specifications) produced after the transformation are compared with the products of the same specifications produced by the single-strand machine. The physical indexes are shown in Table 1. As can be seen from Table 1, the quality of the products produced after the transformation of the machine is A basic consistent table for the production of single-strand machines.
(1) The hardware transformation to convert the joint-stock machine into a single-unit is not a big investment. The difficulty is in the transformation of the winding method, and the equipment supplier is also required to support the software.
(2) After the joint-stock machine is transformed into a single-strand yarn, the output is twice that of the ordinary single-unit machine. The production cost is greatly reduced, and the economic benefits of the enterprise can be effectively improved in the off-season of the non-twisted silk market.
(3) The quality of the products produced after the transformation is basically the same as that of the single-strand machine. However, since the length of the reeled paper tube is only 142.5mm, the weight of the produced coil is limited, and at the same time, due to the formation of the coil and the conventional products. There are also differences, so it will bring some inconvenience to the customer's use.