JPS58224965A - Method of guiding thread on high speed winder - Google Patents

Abstract

PURPOSE:To improve the rate of successful guide of thread by a method wherein a spin thread is partially wound around a circumferential surface of a waist roller of winder, forcedly tracted and then guided to a thread guide of high guiding resistance while the thread is sucked with a suction gun. CONSTITUTION:Synthetic multi-filament thread spun in a molten condition is sucked by a suction gun 13, wound around the godet roller 3 and 4 rotated at a speed more than 3,000m/min, then the thread is divided into Y1 to Y4 by the thread guide 5 just below it, passes through a traction guide 7, is wound around the waist roller 12 at an angle of 90 deg. to 200 deg., and the thread to be delivered is sucked by the suction gun 13. Thus, the tension of the thread just below the godet roller 7 is not decreased, the rag thread is sucked and disposed. The thread is bent by the thread path restricting guides 14, 16, 17, 19, 20, 22, 23 and 25 and the thread guides 15, 18, 21 and 24 for guiding a thread to bobbins 8 to 11 to increase the thread guiding resistance, the thread is guided along them to complete the thread guide. In this way, it is possible to improve the rate of successful guide of thread.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for threading a high speed winder.

In recent years, three multi-filament threads are simultaneously produced in the spinning process or direct spinning process of synthetic fibers such as polyester and polyamide.
Winding at high speeds of over 1,000 m/min has become commonplace, and various types of high-speed winders suitable for such high-speed winding are commercially available.

However, with all high-speed winders, threading at high speeds is difficult and easy to fail. This increases the number of personnel required for threading, increases the amount of thread waste, and significantly reduces product yield, which also impedes the reduction in manufacturing costs through rationalization that is the aim of high-speed winders.

Meanwhile, the development of high-performance suction guns and high-pressure pneumatic equipment are being considered to support high-speed operation.

However, recently winders have become faster and have a higher number of yarns, and it is now required to wind 4 to 8 yarns simultaneously at a high speed of 4,000 m/preparative winding, but with high-pressure air equipment. There are limits to threading with a suction gun, and threading with a suction gun is becoming impossible.

Furthermore, some high-speed winders with speeds of 6000 m/min or more are becoming commercially available. Various synthetic fiber manufacturers are also considering methods for simultaneously threading multiple threads at high speed. Examples include: ■ Wrapping the yarn around the waist roller and then threading it; ■ Decreasing the Godet roller feeding speed, threading, and increasing the Godet roller speed to the normal speed after threading is complete. Proposed. but,
■For wrapping the thread around the waist roller.

When processing at high speed and with a large number of yarns, a large amount of yarn winds around the waist roller, and it is necessary to stop the waist roller each time to remove the wound yarn. Therefore, when threading yarn through arranged wine gooses one after another, each wine goo must be equipped with one waste roller, or the amount of waste thread generated will increase, but each waist roller should be stopped once at a time to remove the wrapped thread. The method used is to move the waist roller while removing the threads and thread the threads in sequence. This threading method has the drawback that it requires a lot of manpower and time to remove the thread wrapped around the waist roller, reducing operability.

■In the case of ■, the Godet roller is mainly stepped.

Alternatively, the yarn may be made into a tapered shape so that the yarn travels in a low circumferential speed area until threading is completed, and at the same time when threading is completed, the yarn running position is shifted to the normal peripheral speed and wound. However, the timing of moving this yarn is delicate, and if it is too early, threading will fail.

If it is slow, the abnormal thread may get caught in the package, etc.
There are defects that lead to a decline in quality as well as a decline in operability.

Another known method is to use a suction gun to thread the yarn while suctioning it, making it easier to dispose of waste yarn. However, in this method, a guide is used even when the suction gun suctions the yarn at a constant tension. If the guide resistance is large due to one type of shape, the yarn tension under the godet roller decreases, and the yarn winds around the godet roller, resulting in yarn breakage.

The inventors of the present invention have investigated various methods for threading the high-speed wine goose, which has many problems as described above, and have found that the usual method is to use compressed air equipment9.
, has invented a method for efficiently threading yarn using a compressed air source of 9 kg/♂G or less. In other words, when threading the spun yarn onto a high-speed wine goo, the yarn is passed through a Godet roller using a suction gun.
After that, the yarn was partially wound around the circumferential surface of the waist roller so that the angle was between 90' and 200°, and the yarn that was fed out from the waist roller was suctioned with a suction gun. A method of threading a high-speed wine goo is characterized by threading the thread on a guide, which causes a large resistance to the thread due to the state of the thread.

In the spinning process or direct spinning process of synthetic fibers such as polyester, polyamide, etc., the present invention is capable of spinning spun yarns or drawn yarns at a high speed of 3000 m/min or more and simultaneously winding multiple yarns. Effectively applied when multiplying. As a high-speed wine goo, (A)
) A combination of 2 cross guides or traverse guides and a split drum 9 High-speed wine gear with a friction roller that rotates the take-up bobbin under pressure and a bobbin holder into which the take-up ribbon is inserted, (B)) Rano Ku-
A high-speed wine goo is known that has a spindle into which a winding bobbin is inserted and rotates, and a touch roller that rotates in contact with the spindle.

An example of this will be explained with reference to FIG. 1. In FIG. 1, numeral 1 represents an oil supply device for spun yarn, and numeral 2 represents a yarn path regulating guide. Yl, Yl, Ys, Y4 are the cap and cooling cylinder χ
In the case of FIG. 1, four yarns are exemplified. 3.4 is 1st Goderola - 9th 2nd
Goder roller 15 is a yarn distribution guide, and 6 is a traversing fulcrum guide that enters the wine groove. The spun yarn is elongated through the above steps, and the yarn is distributed by a guide 5 and wound up into winding pockets 8 to 11 to form a burn and become a product yarn. 7 is a thread pulling guide from the wine goo, and 12 is a waist roller.

In conventional threading, the spun yarns Y1 to Y4 are first wound around a waist roller, and then wound around the winding bobbins 8 to 11.
The method used is to complete the threading process by threading the thread through the guide that forms the wine goo.

As mentioned above, there is a drawback that it requires a great deal of effort and time to remove the yarn wound around the waist roller. Another method is to apply suction with a suction puller without using the waist roller 12 and then thread the thread onto the wine goo, but this method bends the yarn in some guides of the wine goo, increasing the thread guiding resistance. As described above, since there is a guide to guide the yarn, the thread tension under the godet roller decreases, causing the thread to wrap around the godet roller and causing a failure in threading.

From the above, when threading in a high-speed winder, it is a necessary condition to increase the success rate that the thread tension directly below the godet roller, which is supplied to the winder, is sufficiently high, and at least it is forced to be pulled at a higher speed than the godet roller. It is better to use a waist roller that is capable of pulling the yarn at high speed, and the yarn is not wound around the waist roller, but the yarn that has passed through the waist roller is sucked up with a suction gun to facilitate waste disposal. be.

Therefore, when wrapping the yarn around the waist roller, the angle is 90~2
00 degrees, more preferably 90 to 180 degrees. In other words, if the angle is less than 90 degrees, the effect of forcibly pulling the yarn is poor.
This is because if the temperature exceeds 00 degrees, the yarn will wrap around the waist roller.

The threading method of the present invention will be explained in detail below with reference to FIGS. 2 and 3. FIG. 2 illustrates the state in which the thread hook is in the front, and FIG. 3 illustrates the state in which the thread hook is in the rear. In FIG. 1, the same reference numerals as in FIG.

Melt-spun synthetic fiber multi-filament yarn is subjected to a pneumatic pressure of 6 to 9, for example.
kg/exa” Suction gun 13 suctioning with G
After the yarn is sucked by the Godet rollers 3 and 4, which are rotating at a speed of 3[]ODm/min or more, the yarn path sorter located directly below the Godet rollers distributes the yarn to the guide 5 (y1
~Y4) The yarn was wound around the waist roller 12 through the drawer guide 7 provided at the bottom of the winder at an angle of 90 to 2-00 degrees, and the yarn sent out from the waist roller was sucked by the suction gun 1'5. state. In such a state, the spun yarn is forcibly pulled by the waist roller, so the tension directly under the godet roller 4 does not decrease. Furthermore, since the waste threads are suctioned by a suction gun, the present invention has the effect that processing can be easily carried out. Y4 thread path regulation guide.

11:11 15, 18.21.24 is bobbin 8 of the winder part
~ Button 1 The thread hook for hanging the thread on 11 is a guide that bends the thread in this embodiment, resulting in a significantly large thread guiding resistance. Next, from the state in which the suction gun 15 is suctioning the waist roller 12, the thread is threaded onto each of the thread path regulation guides and thread guides to complete thread threading.

In addition, in the case of the device illustrated in Fig. 2, the thread guide has particularly high resistance, and the other guides are guides that regulate the thread path and have little resistance, so the thread is drawn to the godet rollers 6 and 4 using a suction gun, and the thread is distributed. Guide 5. Traverse fulcrum guide 6, thread path regulation guide 14, 16, 17°19 and 2G, 22.23.
25. The yarn is sorted and passed through the drawer guide 7, wound around the waist roller 12, sucked up with the suction gun 16, and finally threaded into the guide 15.18. '21.24
You can also thread it to complete the process.

As described above, in the threading of the present invention, the spun yarn is partially wound around the circumferential surface of the waist roller provided in the winder, the yarn is forcibly pulled, and the yarn from the waist roller is sucked with a suction gun. Since the thread is kept in a threaded state once and then the thread is hung on the guide part when the thread has a large guide resistance, the success rate of threading on a high-speed winder is dramatically improved, and waste thread disposal is easy. This means that excellent operability can be obtained.

In the case of the present invention, the waist roller may be provided for each winder, but as long as it is movable.

The number of waste rollers can be significantly reduced and equipment costs can also be reduced.

Although the threading method according to the present invention is particularly effective for high-speed winders, it is not limited thereto, and the threading of spun yarns to winders can be applied generally.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of the silk reeling process using a high-speed winder, Figure 2
FIG. 6 is an explanatory view of the state of threading according to the present invention. 6.4: Godet roller 14, 16, 17, 19, 20, 22, 23, 25: Thread path regulation guide 15, 1B, 21.24: Thread guide 12: Waist roller 1'5 = Suction gun patent application Hito Toshi Co., Ltd.

Claims (1)

[Claims] When threading spun yarn into a high-speed winder. After suctioning the yarn with a suction gun and winding it around a cob roller, the yarn is wrapped around the waist roller so that the corners are 9
Partially wrap it so that it becomes 0 to 200. A method for threading a high-speed winder, characterized in that threading is carried out on a guide while the thread sent out from the waist roller is sucked by the suction gun.