JPH0515801B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a method for winding silk thread.

[Conventional technology]

Among the warps and wefts for weaving silk fabrics, the wefts are generally made by plucking a plurality of silk threads together. The manufacturing process of the weft yarn mentioned above is as follows: 1. A process of collecting a large number of threads pulled out from a "cocoon" by a reeling machine and winding them onto a rotating small frame. Step 3 of removing and rewinding it into a package of a certain shape 3 The above-mentioned rewound thread is extremely thin, and in order to use it as a weft, a plurality of threads are further combined and wound. It consists of a tube winding process in which the thread is wound back for use on the loom. Of the above steps, in particular the winding of the doubled yarn in step 3 is called a twisted doubled yarn, which is wound while applying a slight twist, and b wet doubled yarn, which is wound with water attached in an untwisted state. There is a thread winding method. In other words, in order to obtain the unique texture and texture of silk fabrics, it is desirable to wind the silk without twisting in the yarn doubling process.
Silk threads are extremely thin and have many changes in strength and elongation depending on temperature and humidity. When untwisted, the threads may separate, or due to tension differences, they may separate from the majority of the threads and form loop-like parts. This may cause thread breakage or spots on the fabric. Therefore, some twisting as in a above, for example,
By twisting the yarn gently at a rate of about 10 times/m,
In this method, water is applied to prevent the yarn from separating while winding it up.

[Problems to be solved by the invention]

However, the former method a requires a large-scale device to apply the twisting force,
Furthermore, even though it is desirable that the yarn be untwisted, the quality of the product as a woven fabric deteriorates due to twisting. Moreover, in the latter method (b), since the package is rolled up while adhering moisture, it is troublesome to store the rolled up package, and there are various problems such as corrosion if left for several days. An object of the present invention is to solve the above-mentioned problems of conventional doubling and winding of silk thread.

[Means to solve the problem]

The present invention is a method for doubling and winding a plurality of silk threads, in which each untwisted thread drawn from a plurality of package cages placed in the air at room temperature is connected to a convergence guide provided on the package cage side and wound. After passing through a tension difference reduction area having a distance of 4 m or more formed by a plurality of guides between the tension device and the tension device installed on the take-up device side, in an untwisted state, the untwisted package is placed on the take-up package. It is designed to be wound up in this condition.

【Example】

DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus for implementing the present invention will be described below with reference to the drawings. Figures 1 to 6 schematically show the process of producing silk yarn for weft. In FIG. 1, threads 2 pulled out from a plurality of cocoons 1 are gathered together, passed through a converging machine 3, and wound around a skein frame 5 as a thread bundle 4. The wound frame 5 is subjected to the process shown in the second diagram, that is, the defective part is detected by a means 6 for detecting impurities and defective parts contained in the yarn, cut and removed, and work such as splicing is performed. When the package 7 wound in the unwinding process is used as a warp of a loom, it is used as a single yarn without going through the subsequent doubling process. Further, in the above-mentioned winding step, the yarn 4 on the yarn feeding side is set in an atmosphere of constant humidity and temperature, and is wound up while being pulled out. On the other hand, in order to be used as a weft in a loom, it is further supplied to the doubling process shown in FIG. That is, in the yarn doubling process, yarns 8 pulled out from a plurality of packages 7 are brought together in an untwisted state to obtain a doubling package 16 to be supplied to the subsequent tube winding process. In FIG. 2, a plurality of packages 7 are placed in the atmosphere at room temperature by appropriate means, and the yarn 8 pulled out from each package passes through a convergence guide 9, and when the yarn speed is about 180 m/min, the yarn 8 is relatively long. Guide 10, 1 in the tension difference reduction area L at a distance of 5 m.
1, 12, etc., passes through a tension device 13 for winding with a constant tension, and comes into surface contact with a friction roller 15.
6, the yarn is wound into a predetermined shape via the yarn guide 17 of the traverse device 14. Tension difference reduction region L
depends on the yarn speed, and becomes longer than the above length when the yarn speed is 180 m/min or more. In the above yarn-pairing process, conventionally each yarn supply package 7 is immersed in water and each pulled-out yarn is simply combined and wound immediately, or if water is not attached, it is wound with a gentle twist. However, in the present invention, water is not attached and the yarn is wound in a non-twisted state. That is, in the third diagram, the yarn pulled out from the yarn supply package 7 is wound up after passing through a relatively long traveling path through ascending, horizontal, descending, and inclined yarn paths. For example, while the conventional yarn travel distance in the yarn doubling process was 20 to 40 cm, as shown in FIG.
If the thread running path is bent by 11 and 12, a running path of arbitrary length can be obtained, from 4 to 5 m.
The difference in tension between the yarns is sufficiently eliminated on the running path.
That is, as mentioned above, yarn splitting, loops, etc. occur due to slight tension differences and tension fluctuations that occur in the untwisted state.
By bending the yarn by the guides 10, 11, and 12 between the yarns, making the yarn run longer as described above, and making each yarn run under the same conditions, the difference in tension between the yarns is reduced, and each yarn is Since it is possible to wind the yarn under the same tension, there is no risk of yarn splitting even though the yarn is not twisted. Further, as a traverse device for preventing yarn splitting, a traverse device 14 of a type in which a yarn guide 17 is fixed to a cam shoe that traverses through a cam groove of a cam drum 18 is applied. Furthermore, the above-mentioned yarn doubling process is carried out by placing the yarn supply package 7 in a dry atmosphere at room temperature, but of course dry atmosphere also includes a state containing a certain degree of humidity, and the yarn supply package 7 is immersed in water. Further, it means a state other than a state in which water is attached to the thread to be drawn out and the thread is combined. Furthermore, in order to store the package wound in the yarn doubling process, we have developed a yarn doubling process in which the yarn can be stored in a state that does not adversely affect the quality of the yarn, even if it is not stored in water or in a refrigerator. It also includes. The package 16 having a predetermined shape obtained by the doubling and winding step shown in FIG. 4 is stored in an atmosphere of constant humidity, and is appropriately supplied to the next step, the tube winding step shown in FIG. 5. The tube winding process is performed using the yarn feeding package 16.
is set immersed in a water tank 19, and the thread 20 containing sufficient water is pulled out, passed through a tension device 21, and wound around a woodwind 22. The silk thread 23 produced through each of the above steps and wound around a winding wood pipe is stored in water 24 as shown in Figure 6, and when used as a weft, it is taken out of the water and attached to a shuttle. be.

【Effect of the invention】

As described above, the present invention is a method of doubling and winding a plurality of silk threads in the yarn doubling process, in which each untwisted silk yarn is pulled out from a plurality of package cages placed in the air at room temperature. The yarn is placed in an untwisted state in a tension difference reduction area having a distance of 4 m or more formed by a plurality of guides provided between a convergence guide provided on the package cage side and a tension device provided on the winding device side. After passing through the threads, the threads are wound in a non-twisted state on the winding package, so there is no need for a twisting device to evenly align multiple threads, and there is no need for a device to attach moisture. Compared to conventional twisted yarn or wet yarn, it is economical and
It becomes easy to store the bundled package. Since the multiple threads travel together for a long distance of 4 meters or more between the focusing guide and the tension device, each thread is relaxed during this time, even if there are variations in thickness. Otherwise, the tension of each thread is equalized, and the threads are drawn well and aligned, and there is no possibility of splitting of the threads due to shrinkage after the threads are drawn. In addition, even if a situation occurs where a knot or the like occurs in a part of one of the threads, causing the thread to fly off, and an attempt is made to temporarily increase the tension of the thread, the above knot can be removed by using other aligned threads. The yarn is secured, an increase in the tension of the yarn is prevented, and winding is performed under constant tension, and the package is wound with uniform hardness.

[Brief explanation of the drawing]

Figures 1 to 6 show the process of producing silk yarn for weft, Figure 1 shows the reeling process, Figure 2 shows the winding process, and Figure 3 shows the doubling process. , FIG. 4 is a diagram showing the package obtained in the thread doubling process, FIG. 5 is a diagram showing the pipe winding process, and FIG. 6 is a diagram showing the storage state of the pipe-wrapped woodwind. 7... Yarn feeding package, 8... Silk thread, 9... Focusing guide, 10, 11, 12... Guide, 13...
...Tension device, 16... Winding package, L
...Tension difference decreasing area.

Claims (1)

[Claims] 1 A method of doubling and winding multiple silk threads, in which each untwisted thread is pulled out from a plurality of package cages placed in the air at room temperature, and a convergence guide and a winding device provided on the package cage side are used. After the package is passed untwisted through a tension difference reduction area with a distance of 4 m or more formed by a plurality of guides provided between the tension device and the tension device installed on the side, the wound package is placed in an untwisted state. A method for winding silk thread.