JPS584954Y2 - Processing agent application device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a processing agent application device for yarns, and in particular, it applies processing agents such as oil, water, or adhesives to yarns traveling at high speeds with high efficiency, and also minimizes scattering of the processing agents. The goal is to provide fewer devices.

Conventional means for applying oil to synthetic fiber threads, for example, include a method in which the thread is partially immersed in a liquid tank and brought into contact with the surface of a rotating oiling roller, or a method in which the oil is allowed to flow down a grooved arcuate plate. A method of bringing the yarn into contact with the yarn (and a method using a spray nozzle, etc.) was used, but these methods all involve a large difference in relative velocity within the liquid-liquid film formed only on one side of the yarn. Since the traveling threads come into contact with each other, the pattern is shaken off, and since the opposite side of the roller and plate is a completely open space, there is a large amount of oil splashed into this space, resulting in a loss of oil. However, there are significant disadvantages in that it contaminates equipment and the environment, and also contaminates products.

In recent years, high-speed spinning technology and high-speed crimp/bulk processing technology have been developed to streamline the synthetic fiber manufacturing process, and the technology of applying processing agents such as oil, water, or adhesives to high-speed running yarn is of great industrial significance. We have come to have this.

In particular, in recent years, the technology of bulking thermoplastic synthetic fibers by heated fluid injection processing has been industrialized, and in this process, before winding bulky yarn as a product, it is necessary to prevent quality deterioration over time and improve process condition in subsequent processes. A treatment agent such as a finishing oil containing water is applied to the surface.

In this process, the 5SDTY process was developed in which the melt spinning process is followed by stretching and bulking, and according to the process, the winding speed is 2000 to 3000 m/mi.
The technique of applying a treatment agent to bulky yarns, which are as large as 1000 yen, has significant irregularities on the yarn surface, and has bulky properties is extremely difficult compared to general flat yarns, and the oiling roller method described above is extremely difficult. , the plate flow down method, and the single spray method, scattering of the processing agent reached 80 to 90% or more, and it was extremely difficult to even provide a predetermined amount of adhesion.

The present invention has solved this problem and achieved a compact processing agent application device that significantly increases processing agent application efficiency, causes extremely little processing agent scattering, and is compact.

That is, the present invention is a processing agent applying device comprising a combination of the following (a) to (c).

(a) A processing agent applying device main body having a thread guide groove cut approximately along the core of the main body and a plurality of processing agent supply holes bored in the peripheral wall of the thread guide groove.

(b) Surrounding the main body of the processing agent applying device, and having at least one slit each facing the yarn inlet end and outlet end of the yarn guide groove through which the yarn can pass, and the yarn guide groove A box body provided with a lid that faces the opening of the box and engages with the lid so that it can be opened and closed.

(c) A processing agent collection port provided at one end of the bottom of the box.

Hereinafter, the present invention will be explained in detail using the drawings.

Fig. 1 shows one embodiment of the present invention, and Fig. 2 is a side sectional view taken along line A-A' in Fig. 1, and Fig. 3 shows another embodiment of the present invention. FIG. 3 is a side cross-sectional view of the main body of the processing agent application device.

Below, referring to FIGS. 1 and 2, the device of the present invention is as follows:
First, a yarn guiding groove 2 is carved along the center of the processing agent applying device main body 1, and a peripheral wall 3゜3', 3'' of the yarn guiding groove 2 is connected to a treating agent supply port 4 and a treating agent supply reservoir 5. A plurality of processing agent supply holes hl t h2t, 113h4 . . . are formed.

Here, the liquid is fed to the processing agent supply port 4 at a constant flow rate using a metering pump such as a gear pump or a head tank installed above the processing agent applying device using a needle valve or the like.

Processing agent supply hole h1. h2. The liquid (processing agent) discharged from h3... forms a film on each surface of the peripheral walls 3.3', 3'' due to surface tension.

In particular, the gap between the peripheral walls 3 and 3' (thread guide groove width) should be 1.0 to 2.
．． If the thread guiding groove is carved to a thickness of approximately 5 mm, the coatings on each adjacent surface will bond together, and a thick liquid film can be formed over the entire cross section of the thread guiding groove.

Therefore, the treatment agent is uniformly applied to the yarn YIC when passing through the liquid film.

With conventional processing agent application devices (for example, oiling rollers), processing agents are applied to the yarn from a liquid film formed only on one side of the yarn. The membrane is extremely scattered into the open space on the opposite side due to the threads and accompanying airflow, and sufficient application performance cannot be provided.

On the other hand, according to the device of the present invention, since the liquid is supplied from the coating liquid layer that surrounds the yarn from almost the entire circumference, the wetted area of the yarn with the liquid increases significantly. Since the yarn is guided through a relatively narrow slit, the accompanying airflow of the yarn traveling at high speed is cut.
3", the liquid that has peeled off and scattered cannot be scattered into the air because it is surrounded by a wall surface, and is re-released from the surrounding walls 3, 3', and 3".
By adhering to the yarn and supplying the treatment agent to the yarn, the efficiency of applying the treatment agent can be significantly improved, and at the same time, it can be effective in preventing the treatment agent from scattering.

Processing agent supply hole h1. Although h2, h3, . . . are shown as multiple rows of holes along the thread guide groove 2, they may also be made of a porous plate made of sintered metal or the like.

In addition, treatment agent supply holes are arranged for each type of peripheral wall 3, 3', but the adhesion efficiency naturally differs depending on the yarn type (flat yarn, bulky yarn, etc.), yarn speed, and fineness. If the adhesion efficiency is high, for example, the supply holes h1 may be arranged only on the peripheral wall 3 side, and the supply to the peripheral wall 3' may be eliminated.

Here, the thread guiding groove 2 may have a rectangular cross-sectional shape as shown in FIG. 2, or a cylindrical cross-sectional shape as shown in FIG. It may also be a shape with a number 6 arranged thereon.

Next, the box 7 surrounding the processing agent application device main body 1 will be explained.

As mentioned above, processing agent scattering from the processing agent application device main body is caused by
It is limited only to the downstream direction of the yarn, and is dispersed in a substantially conical shape toward the downstream side in the form of a spray, with the yarn outlet end of the main body 1 as the apex, as shown by the chain line.

In order to prevent such scattering, the device of the present invention has a box body having slits 81282783.84 facing the yarn entrance end C1 of the yarn groove and the opening E of the yarn guiding groove of the main body 1. is surrounded by.

The slit facing the yarn outlet end is Surin)s
In Fig. 1, in order to further enhance the scattering prevention effect, a second sulin (s3) is installed on the downstream side.
A partition plate 9 is installed.

Note that the number of partition plates (slits) installed may be increased or decreased depending on the required level of scattering prevention.

Furthermore, in this invention, in order to completely prevent scattering, the thread guiding groove 2 is
A lid portion 15 is provided opposite to the opening E of the lid portion 15 and engages with the lower edge 7a of the sulin l's4 via a pin 14 so as to be openable and closable.

Therefore, the box T functions as a receiver for the processing agent overflowing from the main body 1 and a tray for collecting the processing agent that has adhered and aggregated on the partition plate.

The recovered liquid is discharged and recovered from a processing agent recovery port 10 provided at one end of the bottom of the box body 7.

Preferably, the periphery of the yarn guide of the slits 81, 32, 83 is made of a hard porcelain guide or a hard steel guide 1112 that does not damage the yarn. ? It is better to set 13.

As a result of the test, oil scattering from the slits 81 to s4 rarely occurs, and the conical scattering area shown in FIG. 1 can be sufficiently covered.

As described above, according to the device of the present invention, the threading operation can be performed quickly and easily, the processing agent can be uniformly applied to the high-speed traveling yarn, and scattering of the processing agent can be prevented.

Hereinafter, an example will be shown in which finishing oil was actually applied to bulky textured yarn in the 5DTY process using the device of the present invention.

Example Using the apparatus shown in FIGS. 1 and 3, a treatment agent was applied to yarn under the following conditions.

(1) Amount of oil applied: 3.5-4. Owt% (liquid feeding by gear pump) (2) Yarn to be treated: Fineness 1600De, nylon 6 bulky yarn (3) Yarn speed, 2500m/height (4) Appliance device: Yarn guide groove length 40rIan (main body l, length ) Same as above Width i, smm Rectangular cross-section oil supply hole lφ x 6 holes (1 row, peripheral wall 3 only) Box total length 80+m 2-stage partition plate The results show that the oil adhesion efficiency is 60 to 70 for the amount of liquid sent, and the oil retention agent drain recovery The ratio was in the range of 25 to 30, which was very good, and the scattering of the oil agent outside the box was extremely slight, and an excellent industrial effect was obtained.

[Brief explanation of the drawing]

Fig. 1 is a front sectional view of a processing agent application device according to one embodiment of the present invention, Fig. 2 is a side sectional view taken along the line A=A' in Fig. FIG. 2 is a side cross-sectional view of the main body of the processing agent application device. 1: Main body, 2: Thread guiding groove, 3, 3', 3'': Thread guiding groove peripheral wall,
hl, h2. h3: Processing agent supply hole, 7: Box, 81.8
2t 83184 Nislit, 15: Lid.

Claims (1)

[Claims for Utility Model Registration] A processing agent applying device comprising a combination of (a) to (c) below. (a) A processing agent applying device main body having a thread guide groove cut approximately along the core of the main body, and a plurality of processing agent supply holes bored in the peripheral wall of the thread guide groove. (b) Surrounding the main body of the processing agent application device and facing the yarn inlet end and outlet end of the yarn guide groove, each has a slit of at least l' (lllj) so that the yarn can pass through, and A box body provided with a lid that faces the opening of the guide groove and engages in a freely openable and closable manner. (c) A processing agent recovery port opened and provided at one end of the bottom of the box body.