JP2535149Y2 - Oiling device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for applying oil to synthetic fiber yarns such as polyamide and polyester.
It is intended to uniformly apply an oil agent to the yarn to improve the operation stability.

[0002]

2. Description of the Related Art Generally, as a method of applying an oil agent to a traveling yarn, an oil film is formed on a surface of the roller by rotating an oiling roller, and the oil agent is applied by bringing the yarn into contact with the roller surface. The touch roll type has been frequently used. In recent years, a slit method has been adopted in which a predetermined amount of oil agent is supplied in advance to a specially-shaped oil agent application guide, and the oil agent is applied by bringing a thread into contact with the oil agent application guide.

[0003]

[Problems to be solved by the present invention]
While high value-added is required, it is possible to produce these high value-added synthetic fibers stably without process trouble, and to obtain fibers with uniform yarn quality and no partial defects at low cost. This is industrially significant.

[0004] In the production process of these fibers, it is essential to apply an oil agent from the viewpoint of production, and if this oil agent application device is not suitable, it may cause troubles in the subsequent process, and may cause non-uniformity or partial localization of the fiber. It causes defects.

[0005] For this reason, there is a method as described above. However, in the case of the touch roll method, the state of adhesion of the oil agent to the roller surface is reduced.
The unevenness in the circumferential direction of the rubber has a drawback that causes unevenness in adhesion of the oil agent.

Therefore, the latter method has been frequently used for the purpose of uniformizing the adhesion of the oil agent to the yarn. However, the metering and piping facilities are complicated because a fixed amount of oil is measured in advance in the oil supply system, so that the gas dissolved in the oil appears as bubbles or bubbles from the pipe connection. Fluctuations in the discharge pressure of the oil agent due to mixing and pulsation of the metering section cause instability in spinning tension and problems in spinning such as thread breakage.

[0007] Further, since the spinning disorder due to the fluctuation of the discharge pressure of the oil agent becomes more remarkable as the spinning speed increases, the reduction of the fluctuation of the oil discharge pressure is a major problem in high-speed spinning. The present invention has been made in order to solve such problems of the prior art, and separates the minute dissolved bubbles in the oil agent immediately before the oil agent discharge hole, and at the same time, reduces the fluctuation of the oil agent discharge pressure, thereby improving the quality. The present invention provides an oil agent applying apparatus capable of stably obtaining a product yarn excellent in the above.

[0008]

That is, the present invention relates to a synthetic fiber oil applying apparatus for applying an oil measured by an oil applying nozzle to a traveling yarn, wherein an oil supply pipe to the oil applying nozzle is provided. The oil dispensing apparatus is characterized in that it is partitioned by a filter whose upper side is inclined in the direction of the oil dispensing nozzle, and a defoaming cylinder is protruded above the inclined portion of the filter.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG.
FIG. 2 is a longitudinal sectional view of a main part of the oil supply nozzle shown in FIG. 2, and FIG.

In the figure, the oil supplied to an oil tank 1 is supplied to a metering pump 3 through a main oil supply pipe 2. The required amount of oil is measured by the metering pump 3 and is sent to the oil applying nozzle 5 through the branched oil supply pipe 4.

The oil agent application nozzle 5 comprises a block body 6 in which the cross section of an oil agent application surface 7 forms a U or V shape.
A discharge hole 8 for the oil agent is provided above the application surface 7 or in the front and rear positions at the center.
Are provided, and guide surfaces 9 are provided on both sides of the application surface 7 so as to protrude.

A porous ceramic or a sintered metal is provided at an internal position just before the connection of the oil supply nozzle 5 of the oil supply pipe 4.
Alternatively, a plate-like filter 10 made of a perforated plate, a wire mesh, or the like (the filter is not limited to these as long as it has the following function) is partitioned at an angle θ at a fixed angle θ in the direction of the nozzle 5. And a uniformizing chamber 11 is formed between the nozzle 5 and the filter 10.

Here, the filter 10 has a function of relieving pressure fluctuations such as pulsation by resistance force and at the same time, of separating fine bubbles and the like. The degree of deaeration can be set freely to some extent. It is preferable that the inclination angle θ of the filter 10 be 30 to 60 °, particularly around 45 °. Filter-1
0 is preferably provided at a position close to the oil agent application nozzle 5, particularly at an internal position immediately before the connection portion, but is not limited to this.

At the position of the filter 10, a defoaming cylinder 12 is provided to project upward from the inclined portion corresponding to the inclined portion, so that the bubbles separated by the filter 10 are released to the outside and the pressure is reduced. It is designed to absorb or adjust for fluctuations.

For this reason, when the required amount of the oil solution measured by the metering pump 3 passes through the oil solution supply pipe 4 and passes through the filter 10, the bubbles are pushed upward along the slope at the front of the filter 10. Since there is no dead space , the air escapes from the degassing cylinder 12 to the outside. Fluctuations in the pressure of the oil are also reduced here, acting as a buffer, and adhere to the running yarn guided from the next discharge hole 8 to the application surface 7.

[0016]

As described above, according to the present invention, fine dissolved bubbles in the oil agent are separated and released before the oil agent discharge hole, and the discharge pressure fluctuation of the oil agent is reduced and reduced. Outflow of air bubbles from the discharge hole can be completely eliminated, and at the same time, pressure fluctuation of the oil agent in the pipe due to pulsation of the measuring unit or vibration of the equipment of the pipe can be reduced, and uniform oil agent can be applied to the yarn, and therefore quality can be improved. This has a very remarkable effect that a product excellent in the above can be stably obtained for a long period of time.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of an oil agent application nozzle section shown in FIG.

FIG. 2 is an overall process diagram for explaining an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oil agent tank 3 Metering pump 4 Oil agent supply pipe 5 Oil agent application nozzle 8 Discharge hole 10 Filter 11 Uniform chamber 12 Defoaming cylinder

Claims (1)

(57) [Scope of request for utility model registration] 1. A synthetic fiber oil applying device for applying an oil measured through an oil applying nozzle to a running yarn, wherein an oil agent supply pipe to the oil applying nozzle has an upper side inclined toward the oil applying nozzle. An oil dispensing apparatus characterized in that it is partitioned by a filter, and a defoaming cylinder is protrudingly provided at a position above an inclined portion of the filter.