JPS632476Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is applicable to cases where yarn is treated with hot water, oil, dye liquid, chemicals, etc., or where yarn is impregnated with resin. Regarding the treatment bath used for.

(b) Prior art For example, the heat shrinkage rate of a yarn can be determined by applying heat shrinkage to the yarn between a supply roller and a take-off roller, while driving the supply roller at a desired constant circumferential speed _V1 , while driving the take-off roller. The measurement is performed by driving at a circumferential speed V ₂ such that the tension of the yarn is constant and performing the calculation [(V ₁ −V ₂ )/V ₁ ]×100. At this time,
A hot water treatment bath is used to impart heat shrinkage.

As such a hot water treatment bath, the one described in, for example, Japanese Patent Application Laid-Open No. 176534/1982 is known.

This hot water treatment bath, as shown in FIG. It has an outlet side yarn passage 4 provided on the other side wall of the yarn. The inlet-side yarn passage 3 and the outlet-side yarn passage 4 are both formed of narrow grooves with open upper ends, and prevent leakage of the hot water 1 housed in the main body 2 by utilizing their surface tension. There is. Thus, the yarn Y travels in the direction of the arrow without bending through the passages 3 and 4, and is treated with the hot water 1 during travel and shrinks. This treatment bath can process the yarn without bending it, and for example, US Pat.
As described in the specification of No. 3762220, where the yarn is bent in a V-shape using a guide roll provided by immersing it in hot water and then started and run, tension loss before and after the guide roll becomes a problem. It never becomes. Therefore, it is very suitable for processing while keeping the tension of the yarn constant, such as when measuring the thermal shrinkage rate. However, on the other hand, it has the following drawbacks.

In other words, for the convenience of measurement, when measuring heat shrinkage rate, etc., multiple different types of threads are tied in series to form a single sample thread, and the measurement is completed on that sample thread all at once. There are many cases where you want to put away the knots, but the conventional processing baths mentioned above have no problem when processing yarns that do not have knots. It has the disadvantage that it gets caught in the yarn path on the side, making running unstable or, in severe cases, breaking. Therefore,
Every time a knot comes up, they are forced to stop running and rethread the thread. However, if the width of the thread path is widened, there is no need to worry about the knot getting caught. However, if this happens, a large amount of hot water will leak out, and the yarn will no longer be immersed in the hot water, making it impossible to process it. This problem is particularly severe in thicker yarns because the knots become larger.

(c) Problems to be solved by the invention This invention solves the above-mentioned drawbacks of the conventional yarn treatment bath, and eliminates the problem that even when treating yarn with knots, the knots are drawn into the yarn path. It is an object of the present invention to provide a yarn treatment bath that can prevent the treatment liquid from leaking.

(d) Means for Solving the Problems This invention for achieving the above object consists of a box-shaped main body for storing the processing liquid, a thread introduction part provided on one side wall of the main body, and a thread introduction part provided on one side wall of the main body. a thread lead-out part provided on the other side wall of the main body, and the introduction part and the lead-out part each have a thread passage in the form of a narrow groove with an open upper end, and a thread knot at the upper end of the passage. The yarn treatment bath is characterized by a slope for guiding the yarn and detouring the passage.

To explain one embodiment of the yarn treatment bath of this invention in terms of a hot water treatment bath, in FIG.
The box-like main body 2 that accommodates the main body 2 is provided with a yarn introduction section 5 on one side wall and a yarn outlet section 6 on the other side wall. The yarn introduction section 5 has a U-shaped yarn passage 3, that is, a narrow groove-shaped yarn passage 3 with an open upper end, and has a right triangular shape when viewed from the side, with an inclined surface 7 on the outside of the main body 2. is formed. The yarn outlet section 6 is also configured in the same manner as the yarn introduction section 5, but the slope 8 is formed inside the main body 2. The degree of inclination of these slopes 7 and 8 is
Preferably, the angle is between 30 and 60 degrees with respect to the horizontal plane. Note that the yarn paths 3 and 4 are wide enough to allow the passage of the yarn Y, which will be described later, but to prevent the knot from passing through. Further, the main body 2 is provided with hot water supply means, heating means for maintaining the temperature of the supplied hot water, and the like as necessary.

In the above embodiments, hot water is used as the treatment liquid, but it goes without saying that oil agents, dyeing liquids, various chemicals, resins, etc. can be selected and used depending on the treatment purpose. do not have.

(e) Effect In FIGS. 1 and 2, the yarn Y, which is made by tying a plurality of different types of yarn in series, passes through the inlet and outlet yarn passages 3 and 4 without bending, as shown by the arrow. While traveling, it is treated with hot water 1 and shrinks. At this time, the main body 2 of hot water 1
The prevention of leakage is achieved by its own surface tension.

Now, as the yarn Y runs, its knot 9 eventually reaches the slope 7 of the yarn introduction section 5. However, the knot cannot pass through the yarn path 3. Therefore, an upward force acts on the yarn Y, and the knot 9 is guided by the slope 7 and slides up the slope 7, causing the yarn Y to move upward, as shown by the two-dot chain line in FIG. be lifted up. When the knot 9 passes over the upper end of the yarn path 3, the yarn Y falls back into the yarn path 3 again.
That is, the action of the slope 7 causes the knot 9 to bypass the yarn path 3. knot 9
As the yarn Y travels, it reaches the yarn outlet section 6, but here too it bypasses the yarn path 4 in the same manner as described above. In this way, the yarn Y runs stably without its knot 9 getting caught in the yarn paths 3 and 4.

(f) Effects of the invention The yarn treatment bath of this invention has slopes in the yarn introduction and outlet parts for guiding the yarn knots to the upper end of the yarn path and detouring the path. Because of this, it is possible to prevent the yarn from running unstable due to knots getting caught in the passage or from breaking the yarn. Therefore, stable running can be ensured even when the thread is a plurality of different types of threads connected in series, and there is no need to temporarily stop running and rethread each time a knot is tied. Furthermore, the width of the yarn passage only needs to be the minimum necessary for passing the yarn through, and there is no need to make it wide enough to allow the knot to pass through, so there is almost no leakage of the processing liquid from the main body.

In addition, since the yarn processing bath of this invention is equipped with a narrow groove-shaped yarn passage with an open upper end, the yarn can be run and processed without bending, and the yarn can be processed using guide rolls. There is no problem of tension loss before and after the guide rolls, unlike in the case where the strips are run while being bent in a V-shape. Therefore, it is particularly suitable for processing while keeping the tension constant during running, as in the measurement of the heat shrinkage rate described above.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway schematic perspective view showing an embodiment of the yarn treatment bath of this invention in a hot water treatment bath, and FIG. 2 shows how the yarn knots bypass the yarn path. FIG. 3 is a schematic vertical sectional view showing a conventional hot water treatment bath. 1: Hot water (processing liquid), 2: Main body, 3, 4: Yarn passage, 5: Yarn introduction part, 6: Yarn outlet part, 7,
8: Slope, 9: Yarn knot, Y: Yarn.

Claims (1)

[Scope of utility model registration request] It has a box-shaped main body for accommodating a processing liquid, a thread introduction part provided on one side wall of the main body, and a thread lead-out part provided on the other side wall of the main body, and the thread introduction part and the thread lead-out part are provided on the other side wall of the main body. Each of the sections is provided with a narrow groove-shaped thread passage whose upper end is open, and a slope for guiding the knot of the thread to the upper end of the passage and detouring the passage. Row treatment bath.