JPH0537975U - Oil agent applying device - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the operation stability by uniformly applying an oil agent to the yarn. [Structure] When the measured oil agent passes through the filter 10 provided in the oil agent supply pipe 4, the minute bubbles contained in the oil agent are pushed upward along the slope at the front part of the filter 10, and the defoaming cylinder remains as it is. It is released from 12 to the outside. The pressure fluctuations of the oil agent are also reduced here by playing the role of a buffer, and the oil agent is guided from the next discharge hole 8 to the applying surface 7 and applied to the running yarn y.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for applying an oil agent to synthetic fiber yarns such as polyamide and polyester, which is to uniformly apply the oil agent to the yarns and improve the operation stability.

[0002]

[Prior Art]

 Generally, as a method of applying an oil agent to a running yarn, there is a Tattilol method in which an oiling roller is rotated to form an oil film on the surface of the roller, and the yarn is brought into contact with the roller surface to apply the oil agent. It has been used frequently in the past. Further, in recent years, a slit method has been adopted in which a predetermined amount of a predetermined amount of oil agent is supplied to a specially-shaped oil agent application guide and a thread is brought into contact with the oil agent application guide to apply the oil agent.

[0003]

[Problems to be solved by the device]

 With the demand for high performance and high added value of fibers in recent years, these high value-added synthetic fibers can be produced stably without process troubles, and fibers with uniform yarn quality and no partial defects are produced. Obtaining at low cost is industrially significant.

In the manufacturing process of these fibers, it is indispensable to apply an oil agent in the manufacturing process, and if this oil agent applying device is not suitable, it may cause troubles in the subsequent process, and may cause unevenness or unevenness of the fibers. Cause a physical defect.

For this reason, although there are methods as described above, in the Tattilol method, the state of the oil agent adhered to the surface of the roller is uneven in the circumferential direction of the roller, which causes unevenness of the oil agent adhesion. There was a defect that caused

Therefore, the latter method is being widely used for the purpose of making the adhesion of the oil agent to the yarn uniform. However, since a fixed amount of pre-measured oil is supplied in the oil supply system, the metering and piping equipment becomes complicated, and the gas dissolved in the oil appears as bubbles or bubbles from the pipe connection. Fluctuations in the discharge pressure of the oil due to mixing and pulsation in the metering section cause problems such as unstable spinning tension and spinning problems such as yarn breakage.

[0007] Since the spinning tone disorder due to the fluctuation of the discharge pressure of the oil agent becomes more prominent as the spinning speed becomes faster, the reduction of the fluctuation of the discharge pressure of the oil agent is a major problem in high-speed spinning. The present invention has been made in order to solve the problems of the prior art as described above, and separates minute dissolved bubbles in the oil agent immediately before the oil agent discharge hole, and at the same time reduces fluctuations in the oil agent discharge pressure to improve quality. The present invention provides an oil agent applying device capable of stably obtaining the excellent product yarn of the above.

[0008]

[Means for Solving the Problems]

 That is, the present invention is a synthetic fiber oil agent applying device that applies oil agent measured through an oil agent applying nozzle to running yarns, in which the oil agent supply pipe to the oil agent applying nozzle is inclined at the upper side toward the oil agent applying nozzle. The oil agent applying device is characterized in that the defoaming cylinder is provided at a position above the inclined portion of the filter and is partitioned by the filter.

[0009]

【Example】

 Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of an essential part of the oil agent applying nozzle portion shown in FIG. 2, and FIG. 2 is an overall process drawing for explaining an embodiment of the present invention.

In the figure, the oil agent supplied to the oil agent tank 1 is supplied to a metering pump 3 through a main oil agent supply pipe 2. A metering pump 3 measures a required amount of the oil agent, and the oil agent is supplied to an oil agent application nozzle 5 through a branched oil agent supply pipe 4.

The oil agent applying nozzle 5 is composed of a block body 6 in which the oil agent applying surface 7 has a U-shaped or V-shaped cross section, and an oil agent discharge hole 8 is opened above the applying surface 7 or in the front-back position of the central portion. In addition, guide surfaces 9 are provided on both sides of the application surface 7 so as to project.

A porous filter or a sintered metal, or a plate-shaped filter 10 made of a perforated plate, a wire mesh, or the like is provided at an internal position immediately before the connection part of the oil agent supply nozzle 5 of the oil agent supply pipe 4 (having the following functions. If there is no limitation to these filter media), the upper side is provided so as to be inclined and divided toward the nozzle 5 at a constant angle θ 2, and the homogenizing chamber 11 is formed between the nozzle 5 and the filter 10. is doing.

Here, the filter 10 has a function of relieving pressure fluctuations such as pulsation by resistance force and separating fine air bubbles and the like at the same time. However, by changing the openings, hole diameters and hole densities, pressure fluctuations and The degree of deaeration can be set freely to some extent. The inclination angle θ of the filter 10 is preferably 30 to 60 °, and more preferably about 45 °. Further, the filter 10 is preferably provided at a position close to the oil agent applying nozzle 5, especially at an internal position immediately before the connecting portion, but the present invention is not limited to this.

At the position of the filter 10, a defoaming cylinder 12 is provided so as to project upward from the inclined portion in correspondence with the inclined portion thereof, and the bubbles separated by the filter 10 are released to the outside. The pressure fluctuation is absorbed or adjusted.

Therefore, when the required amount of the oil agent is measured by the metering pump 3 through the oil agent supply pipe 4 and the filter 10, the bubbles are pushed upward along the slope at the front part of the filter 10. However, since there is no place where there is a depth smash, the gas can be directly discharged from the defoaming cylinder 12. In addition, the pressure fluctuation of the oil agent is also reduced here by acting as a buffer, and the oil agent is guided from the next discharge hole 8 to the applying surface 7 and adheres to the running yarn.

[0016]

[Effect of the device]

 As described above, according to the present invention, the minute dissolved air bubbles in the oil agent are separated and discharged in front of the oil agent discharge hole, and the discharge pressure fluctuation of the oil agent is also reduced and mitigated. It is possible to completely eliminate the outflow of air bubbles and at the same time reduce the pressure fluctuation of the oil agent in the pipe due to the pulsation of the metering section or the vibration of the equipment in the pipe, which makes it possible to apply the oil agent evenly to the yarn, and therefore the quality is excellent. It has a very remarkable effect that the product can be stably obtained for a long period of time.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an essential 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]

 1 Oil agent tank 3 Measuring pump 4 Oil agent supply pipe 5 Oil agent nozzle 8 Discharge hole 10 Filter 11 Uniformization chamber 12 Defoaming cylinder

Claims (1)

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