JPH1161551A - Oil solution-applying guide - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject guide capable of separating air stream accompanied by traveling yarn and stably and uniformly applying an oil solution to a traveling yarn and reducing filament breakage and uneven attachment of oil solution by providing an air stream separating plate in a specific state. SOLUTION: An oil solution is fed from an oil solution feed hole 2 to a yarn contact part 3 of an oil solution-applying guide 1 of a multifilament traveling yarn Y and air stream accompanying the traveling yarn Y is separated by air stream separating plates 4 and 4 provided in yarn traveling direction on both ends of the yarn contact part. It is preferable that the front edge E in the outermost end part of the air stream separating plate 4 is formed in acute angle and the thickness of the air stream separating plate is formed into <=1 mm thickness and the air stream separating plate 4 is covered with a protective plate 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil applying guide for uniformly applying a running multifilament yarn in a synthetic fiber yarn manufacturing process.

[0002]

2. Description of the Related Art In the production of thermoplastic synthetic fibers such as nylon and polyester, it is common practice to apply an oil agent to running yarn. The application of the oil agent improves the bundling property, smoothness, antistatic property, etc. of the yarn, stably performs production during spinning / drawing, and further performs weaving, knitting, and processing such as dyeing. It is extremely important in improving the product quality and preventing troubles.

In general, in order to achieve the above-mentioned object, a fixed amount of oil is supplied to various oil applying guides having a special shape so as to reduce the running frictional resistance with the yarn, and the yarn is supplied to the guide. An oil agent application guide for applying an oil agent to the yarn by causing the yarn to contact and run is widely used.

[0004] As such an oil supply guide, for example, Japanese Utility Model Publication No. 7-7330 discloses a V-shaped yarn collecting groove provided in a convex shape along the running direction of a yarn, and an oil supply is provided at the bottom of the yarn collecting groove. An oil agent application guide provided with a hole has been proposed.

[0005] However, when an oil agent is applied to the running yarn using such an oil agent application guide, when the running speed of the yarn increases, the oil agent is applied to the yarn due to the influence of air accompanying the yarn. The problem of sticking spots occurs. In particular, when the running speed of the yarn is 3000 m / min or more, the airflow accompanying the yarn increases, and the effect cannot be ignored. Then, the accompanying airflow blows the oil agent downward from the surface of the oil agent application guide, or even if the oil agent tries to make the flow of the oil agent even on the guide, a drift occurs to cause the oil agent to adhere to the yarn.

In order to solve the above problem, Japanese Patent Laid-Open No.
No. 116806 discloses that a shielding plate for cutting off the accompanying flow is provided on the yarn entry side of the oil agent application guide.
It is extremely difficult to shut off the associated airflow, especially when the yarn running speed increases. For this reason, oil spots occur, and the oil spots on the running yarn in the conventional oil applying guide have not yet been solved.

[0007]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to solve a problem caused by an air flow accompanying a multifilament yarn running at a high speed in a process of applying a synthetic fiber oil agent. Another object of the present invention is to provide an oil agent application guide capable of applying an oil agent stably and uniformly.

[0008]

According to the present invention, there is provided (claim 1) an oil agent supply hole for supplying an oil agent to a yarn thread portion where a traveling yarn is in contact with and travels, and two ends of the oil yarn supply hole. An oil agent application guide having an airflow separation plate provided along the yarn running direction; (Claim 2) The thickness of the airflow separation plate is 1 mm or less, or the front edge of the uppermost end of the airflow separation plate has an acute angle. The oil supply guide according to claim 1, which has the oil supply guide according to claim 1, (claim 3) the oil supply guide according to claim 1, wherein the protection plate is provided outside the airflow separation plate, and (claim 4) sandwiched by the airflow separation plate. The bottom portion of the yarn running region is 0.5 mm or more higher than the bottom of the separated outflow region of the associated airflow outside the yarn running region.
3. The oil agent application guide according to any one of 3.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a drawing illustrating an oil agent application guide of the present invention, in which (a) is a front view, (b) is a sectional side view, and is a sectional view taken along the line XX in FIG. The figure and (d) show the perspective view, respectively.

In FIG. 1, Y is a running yarn composed of multifilaments, and 1 is an oil applying guide body. The oil supply guide 1 includes an oil supply hole 2, an airflow separation plate 4, and a protection plate 5.

The oil agent application guide 1 constructed as described above.
In the above, the oil agent supplied by a metering pump (not shown) is supplied from an oil agent supply hole 2 opened above the yarn joining portion 3 on which the yarn runs, and the oil agent is supplied to the yarn joining portion 3.

Here, a major feature of the present invention resides in that air flow separation plates 4 are provided at both ends of the yarn joining portion 3 of the running yarn Y along the yarn running direction. Thereby, the traveling yarn Y
Is separated by the airflow separation plate 4 to realize uniform attachment of the oil agent to the running yarn Y.

It is important that the separation of the airflow accompanying the traveling yarn Y is performed before the traveling yarn Y enters the yarn joining section 3. For this reason, it is preferable that the front edge E of the uppermost end of the airflow separation plate 4 has an acute angle. In the present invention, the "leading edge at the uppermost end" is defined as an area A where the airflow accompanying the traveling yarn does not flow through the area B where the yarn travels as shown in FIGS. And "the edge (wind-cut portion) at the uppermost end of the airflow separation plate", which plays the role of separating the airflow so as to flow through A 'and A'.
That is. For this reason, it is effective that the thickness of the airflow separation plate 4 is 1 mm or less so that the airflow accompanying the yarn can be separated smoothly. However, the thickness does not necessarily need to be uniform over the entire area of the airflow separation plate 4. In short, the plate thickness may be appropriately set according to a range in which the air flow can be smoothly separated. Further, as described above, the “top edge of the uppermost end” of the airflow separation plate 4 only needs to be able to separate the airflow accompanying the running yarn, and is processed so that the front edge E forms an acute angle. By,
It is also a preferable embodiment to easily separate the airflow.

Further, regarding the thickness of the airflow separation plate 4, it is not necessary to perform a particularly complicated processing on the separation plate 4, and a uniform plate over the entire area as shown in FIG. It is preferable to use a normal thin plate having a large thickness because the processing cost can be reduced. By doing so, there is also an effect that the separated accompanying airflow can easily flow in the A and A 'regions.
In this case, when the thread is hooked on the oil supply guide body 1 or the like, the airflow separation plate 4 formed of a thin plate is not damaged or deformed by accidental contact of an operator. It is preferable to cover the airflow separation plate 4 with a protection member.

In the oil agent application guide of the present invention, since the contact portion 3 is destined to come into contact with the running yarn Y, the yarn portion 3 has a low friction so that the running yarn Y is not damaged by rubbing. In order to achieve this, it is preferable that the yarn joining portion 3 be subjected to processing such as pear-skin finishing to have a low friction coefficient.
Further, the contact length of the traveling yarn Y in contact with the yarn joining portion 3 is:
It is preferable to set the range of 1 mm or more and 5 mm or less.
That is, in order to ensure that the oil agent adheres to the traveling yarn Y reliably and uniformly, the longer the length of the tangled yarn, the better. However, if the length is too long, the traveling yarn is easily damaged by friction. is there. Further, it is preferable that the connecting portion 3 is formed in a U-shape, rather than in a V-shape, so that the multifilament yarn runs to some extent in a state of being spread laterally.

Furthermore, the bottom of the yarn running area B sandwiched by the airflow separation plates is 0.5 mm larger than the bottom of the outflow areas A and A 'of the separated associated airflow outside the yarn running area.
It is also a preferable embodiment to increase the above-mentioned value to increase the effect of separating the airflow accompanying the traveling yarn.

Finally, it goes without saying that the oil agent application guide of the present invention exerts its effect as the running speed of the yarn Y becomes 3000 m / min or more and the airflow accompanying the running yarn Y increases.

[0018]

As described above, according to the present invention,
The air flow accompanying the running yarn can be separated, and the oil agent can be stably and uniformly applied to the running yarn. Further, the occurrence of filament breakage and the unevenness of adhesion of the oil agent are reduced, which has a very remarkable effect on the stabilization of the spinning process and the improvement of the quality of the obtained yarn.

[Brief description of the drawings]

FIG. 1 is a view exemplifying an oil agent application guide of the present invention.
(a) Front view, (b) Side sectional view, (c) Plan view, and (d)
Perspective view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oil supply guide main body 2 Oil supply hole 3 Connecting part 4 Air flow separation plate 5 Protective plate A Outflow area of accompanying airflow B Thread running area Y Running yarn

Claims (4)

[Claims] 1. An oil supply guide having an oil supply hole for supplying an oil to a thread portion where the traveling yarn contacts and travels, and an air flow separation plate provided at both ends of the thread portion along the yarn traveling direction. . 2. The oil agent application guide according to claim 1, wherein the thickness of the airflow separation plate is 1 mm or less, or the front edge of the uppermost end of the airflow separation plate has an acute angle. 3. The oil agent application guide according to claim 1, wherein a protection plate is provided outside the airflow separation plate. 4. The yarn running area sandwiched by the airflow separation plates, wherein the bottom of the yarn running area is at least 0.5 mm higher than the bottom of the separated accompanying airflow outflow area outside the yarn running area.
3. The oil agent application guide according to any one of 3.