JPS609140B2 - Yarn position feeding method and device - Google Patents

Description

Detailed Description of the Invention (Field of Application) The present invention relieves the unraveling tension of yarn scaled from a yarn package for manufacturing processed yarn, opens the yarn, and transfers the yarn to a fluid processing device. The present invention relates to a feeding method and apparatus.

(Prior art) When unraveling yarn from a yarn package for manufacturing processed yarn (hereinafter sometimes referred to as yarn package) and supplying it to a fluid processing device for interlace processing, fluid injection bulking treatment, etc. In addition, there is a change in the rust-resolving tension of the yarn (the scale rust tension of the yarn in the outer layer of the package is low and increases as it goes to the inner layer).

), the tension fluctuation propagates to the fluid treatment zone, causing processing unevenness in the resulting processed yarn. In order to solve this problem, some attempts have been made to install a presser roller on the yarn supply roller to the fluid processing device to press down the supplied yarn and prevent the propagation of scale rust tension fluctuations, but this method has no effect on preventing tension fluctuations. Almost no rise. We also considered using various commercially available tension conventors to absorb tension fluctuations, but no satisfactory results were obtained. Furthermore, the yarn wound on the inner layer of the yarn package has a round cross-sectional shape, while the yarn wound on the outer layer has a flat cross-sectional shape. The speed is concentrated in a state where the yarn is concentrated in a circular cross-sectional shape and the yarn concentrated in a flat cross-sectional shape has a different degree of processing when subjected to fluid treatment. A problem has also arisen in that the degree of fluid treatment (for example, degree of interlacing, bulkiness, etc.) differs between the inner layer and the outer layer of the yarn package. (Object of the Invention) The purpose of the present invention is to solve such conventional problems, namely, the occurrence of processing spots due to shark rust tension fluctuations and the speed-collecting state of the thread in fluid processing of yarn using a fluid processing device. It is an object of the present invention to provide a method and device for supplying yarn that can prevent this.

(Structure) In order to achieve the above object, the inventors of the present invention have made extensive studies and found that the threads that have been rusted with keys are hammered and rubbed from the thread package to reduce the tension and open the threads. The present invention was achieved by discovering that it is sufficient to twill the yarn and then supply it to the yarn supply roller to the fluid processing device.

That is, when the present invention supplies the derusted yarn from the yarn package for fabricated yarn production to the fluid processing device by the supply roller, the derusted yarn is not held in front of the supply roller, but the derusted yarn is intermittently A yarn supplying method and supply characterized in that tension and relaxation are imparted to the disassembled tinsel yarn by beating and friction.

- In the yarn processing process consisting of a roller and a fluid processing device,
This yarn supply device is characterized in that a roller is provided in front of the supply roller and rotates at a higher speed than the rotation peripheral speed of the supply roller and intermittently contacts the yarn. In the present invention,
By intermittently hitting and rubbing the derusted thread without gripping it and then feeding it to the supply roller, the thread tension in front of the supply roller is lowered, reducing the derusting tension in the fluid treatment zone. The degree of influence is low, and even if the derusting tension fluctuates, the thread tension in the fluid treatment zone does not vary greatly.

Therefore, it is possible to reduce processing irregularities caused by fluctuations in the tension of the shark kettle to the extent that there is no problem in practical use. The yarn tension before the yarn supply roller to the fluid processing device is usually lowered to 0.1 t/de or less, preferably 0.075 t/de or less, to substantially prevent the influence of brood tension fluctuations. be able to.
Furthermore, by intermittently applying 00 strokes to the yarn scaled from the yarn package in this way, the circular or flattened binding state when it was wound around the package is rusted. At the same time, by lowering the tension, the threads are relaxed and opened.

Since the yarn is spread open in this way, there is no difference in the convergence state of the yarn between the inner and outer layers of the package, and it is therefore possible to prevent processing irregularities caused by the convergence state. Next, the apparatus of the present invention for carrying out the method of the present invention will be explained.

FIG. 1 shows an example in which the yarn supply device of the present invention is installed in front of a supply roller in an interlacing process.
The derusted yarns Y and Y' from the yarn packages 1 and 1' pass through guides 2, 2', 3 and 3', respectively, and then a roller (yarn supply device) that rotates intermittently in contact with the yarns. 4, 4' to supply rollers 5, 5'.

The yarns Y and Y that have come out of the supply rollers 5 and 5' are doubled and subjected to an interlace treatment by an interlace nozzle 6.
It is taken up by the delivery roller 7 and wound up by the winding device 8. The rollers (yarn supply devices) 4, 4' are structured so that they rotate intermittently in contact with the yarn. Second
The figure shows an example of the roller (yarn supply device) of the present invention, and A shows a large number of yarn contact pieces 13 having yarn guide grooves 12 between two discs 11 and 11'. B shows an example of a star-shaped roller having a large number of yarn contact protrusions 13', and C shows an example of a polygonal roller having a large number of yarn contact angle parts 13'. It is. The diameter of the rollers (yarn supply device) 4, 4' (the diameter of the circle connecting the yarn contacting parts) is usually 50 to 100 mm. The number of yarn contacting parts is preferably 8 to 3. The thread contacting part has a smooth surface so as not to damage the thread, and is made of a material that is hard to wear. The rollers (yarn supply device) 4, 4' must be forced to rotate at a speed greater than the peripheral speed of rotation of the supply rollers 5, 5' of the processing device. The rollers 4, 4' may be driven by providing a drive shaft on the rotation axis of the rollers, or by directly attaching a motor to drive the rollers, or by driving the rollers 4, 4' as shown in FIG.
In the case of such a roller, a friction roller may be brought into pressure contact with the outer periphery of the disks 11, 11' and driven. The latter method is particularly preferable because the friction rollers can prevent the yarn from coming off the rollers 4, 4'. Rollers 4, 4'
The ratio of the rotational peripheral speed of the supply rollers 5, 5' to the rotational peripheral speed of the supply rollers 5, 5' is preferably in the range of 1.05 to 1.5. Here roller 4
, 4' means the circumferential speed of the circle connecting the yarn contacting portions of the rollers 4, 4'. The contact angle of the yarn with the rollers 4, 4' is preferably in the range of 900 to 1800. (
Function) The function and effect of the present invention will be further explained with reference to FIG.

In FIG. 1, the yarns Y, Y' that have been derusted from the yarn packages 1, 1' are introduced into the fluid processing device by the supply rollers 5, 5'. A roller (yarn supply device) 4, which is intermittently in contact with the yarn and rotates at a higher speed than the peripheral rotational speed of the supply roller,
4' is provided, so the threads Y and Y' are
, 4' are intermittently contacted and subjected to a beating action, and the yarn is overfed between rollers 4, 4' and supply rollers 5, 5', resulting in a decrease in tension. .

Therefore, the weaving of the threads is promoted and at the same time, the spread of scale rust tension fluctuations into the processing zone is prevented. Thus,
It is possible to prevent the occurrence of processing irregularities caused by fluctuations in the unraveling tension and the condensed state of the yarn. (Effect of the invention)
2. According to the present invention, problems that could not be solved with conventional techniques can be solved at once by using an extremely simple device.

(Example) Next, the present invention will be explained in more detail with reference to Examples.

Example 4 Me/24fil polyester fibers are shown in Figure 1*
*Using the interlace processing device shown, two yarns are combined,
Performed interlace processing.

As the rollers (yarn supply device) 4 and 4', the rollers shown in FIG. The number was 2, and the thickness of the thread contact area was 4.

4Me/24h revealed from yarn packages 1 and 1'
] Guide the polyester fibers 2, 2', 3, 3 respectively.
' is wound around the rollers 4, 4' which are rotating at a rotational speed of 600 m/min (the circumferential speed of the circle connecting the yarn contact parts) so that the contact angle is 135o, and then the rotational speed of the thread is wound at a rotational speed of 400 m/min. The feed rollers 5, 5' rotate at high speed. in this case,. The yarn tension between rollers 4, 4' and supply rollers 5, 5' was 0.02/de to 0.05/de. Thereafter, the two polyester fibers were interlaced, passed through an interlace nozzle 6, subjected to an interlace treatment, taken up by a delivery loaf 7 rotating at a circumferential speed of 395/min, and wound up into a winding device 8. For comparison,
Interlace processing was carried out in the case where magnetic tensors were used instead of the rollers (yarn supply devices) 4 and 4', and other conditions were the same as above.

The interlacing degree of the obtained interlaced yarn was measured (n=6) and the results were as follows.

It can be seen that in the case of the present invention, R is small and there are few irregularities in the degree of interlacing.

[Brief explanation of drawings]

FIG. 1 is a simplified front view showing one embodiment of the present invention;
FIGS. 2A, B, and C are perspective views showing examples of the yarn feeding device of the present invention. 1, 1' are yarn packages, 4, 4' are rollers (yarn supply device) that rotate intermittently in contact with the yarn, 5, 5' are supply rollers, 6 is an interlace nozzle, 13, 13' ,1
3'' is the thread contact area, Y, Y'.

Claims (1)

[Scope of Claims] 1. When the yarn unwound from the yarn package for manufacturing processed yarn is fed to the fluid processing device by the supply roller, the unwound yarn is intermittently delivered in front of the supply roller without being gripped. A method for supplying yarn, characterized in that tension and relaxation are imparted to the unraveled yarn by hitting and friction. 2. A yarn processing device comprising a supply roller and a fluid processing device, characterized in that a roller is provided in front of the supply roller and rotates at a higher speed than the peripheral rotational speed of the supply roller and intermittently contacts the yarn. Yarn supply device.