JPS59144633A - Fluid yarn ending apparatus for continuous filament yarn - Google Patents

Abstract

PURPOSE:To eliminate the unevenness, e.g. personal error, and form yarn ends of a constant quality, by connecting a timer to an opening and closing valve provided between a fluid source and a fluid jetting apparatus of a fluid yarn ending apparatus to limit the fluid jetting time. CONSTITUTION:A fluid yarn ending apparatus for piling and inserting a yarn end of a yarn (Y) and a yarn end of a yarn (Y') between receiving tables (b) and (d) and sliding parts (a) and (c), introducing a fluid into a cylinder by turning on a switch 14, moving sliding parts (a) and (c) to receiving tables (b) and (d) through a piston 7, holding both yarns (Y) and (Y') in a plied state, opening an opening and closing valve 21 by turning on a switch 22, flowing the fluid under a pressure adjusted by a pressure reducing valve 19 to a fluid jetting apparatus 15 in a time set by a timer 20, and capable of forming the aimed yarn ends of a constant quality.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a fluid splicing system suitable for splicing the yarn ends of continuous filament yarns such as multifilament yarns with the yarn ends of other continuous filament yarns. Regarding the installation ff″f.

Conventionally, various devices have been introduced for splicing multifilament yarn with the omnipotent yarn end 1 by fluid jetting (U.S. Patent No. 6,645,809), Tsumugi Cho, U.S. Patent No. 5, No. 477,217 Specification Natsume and Special Publication 1983-80
(See Publication No. 66).

However, when piecing yarn using these fluid splicing devices, these devices do not have anything to control the fluid jetting time or fluid pressure, so the fluid jetting time and fluid pressure may vary depending on the person. Even by the same person, the fluid jetting time and fluid pressure differ for each splice, and as a result, the length and strength of the tangle at the spliced portion differs, and the yarn quality at the spliced portion of the false-twisted multifilament yarn varies. Problems with instability occur frequently.

In particular, when using multifilament yarn spliced by these fluid yarn splicing devices for friction false twisting, which has recently attracted attention, as is clear from the twisting principle of friction false twisting, the thickness of the spliced S Depending on the unevenness, the heating number and processing tension will vary, and the thickness will be affected not only in the area of uneven thickness, but also in the area before and after the uneven thickness.
Abnormal yarns occur over the entire length of the yarn, and these abnormal yarns cause untwisted yarns and uneven dyeing. Therefore, in the friction false twisting process, 7% of the yarn is systemically spliced for limited applications, or the yarn is replaced all at once just before the end of the fluid splicing process. be.

Therefore, the present invention solves the drawbacks of the conventional fluid yarn splicing device, and has developed a fluid system in which the spliced portion does not cause thickness unevenness even after friction false twisting and does not cause untwisting or dyeing spots. It is an object of the present invention to provide a fluid yarn splicing device that enables complete splicing.

The present invention has the following configuration to achieve the above object. That is, the present invention includes a thread gripping tower, a fluid ejecting device, a fluid conduit connecting the fluid ejecting device and a fluid source, and an on-off valve provided in the middle of the fluid conduit, and the fluid ejecting device includes a fluid ejecting device and a fluid source. The structure of the wood start J will be explained below based on the drawings so that the yarn is spliced when it is tripped over the yarn path of the fluid ejecting device. In addition.

The drawings are for illustrative purposes only, and changes may be made without losing the spirit of the invention. FIG. I is a perspective view of the fluid splicing device of the present invention, and FIG. 2 is an instrumentation diagram showing the connected state of the fluid splicing device. In FIG. 1, 1 is an example of a thread gripping member. The thread gripping member 1 includes a pedestal (d) and sliding parts (a), (c), and is housed in the side plate (2) by a fitting (not shown).

One end of the push rods 3, 4 is housed in the sliding parts a, c, respectively, and the other end is housed in the piston receiving part 5.

A piston rod 6 is provided on the piston receiving portion 5, and a piston 7 (FIG. 2) is fixed to the other end of the piston rod 6, and is adapted to slide within a cylinder 8.

At all times, the piston 7 is pushed upward in FIG. 2 by the spring 9. Fluid source I+ in chamber IO
A fluid conduit 12 leading to the pressure reducing valve 18 opens via an on-off valve 14'. Note that the 13 pressure reducing valves may be omitted, or it is preferable from the viewpoint of operability. 1/lj: Switch. By turning on the switch 14, the on-off valve 14'
is opened, and the fluid flowing from the fluid source 11 into the chamber 10 passes through the pressure reducing valve 13 and is reduced to an appropriate pressure.

Thus, the piston 7 is pushed against the spring 9, and the slide H'jJ
) Parts a and c move in the direction of the arrow and grip yarn Y and yarn E Y'' by twisting them. If yarn Y and Y' are 1' drawn yarn or undrawn yarn, Narrow opening (1 part a and pedestal d,
The distance between the sliding part C and the sliding part C is preferably widened after gripping.

As the thread gripping member, the one shown in the figure 9.
Although it is preferable, it is also possible to use a device that automatically slides all of the sliding portions a and c, or a device that is manually gripped.

The fluid ejection device 15 includes a thread passage 16 and a fluid ejection passage 17 opening preferably at right angles to the thread passage 16 . Although one fluid ejection passage 17 is shown in the figure, two or more may be used.

The fluid conduit 18 connects the fluid source 11 and the fluid injection device 15, and an on-off valve 21 is provided in the middle of the fluid conduit 18, and a timer 20 is connected to the on-off valve 22. is connected to the timer 20 by a switch.

In FIG. 1, a pressure reducing valve 19, an on-off valve 21, and a timer 20 are built into an outer tube 23. The pressure reducing valve 19 is conveniently provided. The opening/closing valve 21 is preferably a valve or a cock that allows a certain amount of fluid to pass through for a set period of time. Furthermore, the pressure reducing valve 19 is also 1.5 to 5, Q K
9/d A normal one that can be adjusted to about G; nice.

Next, the entire operation of the fluid yarn splicing device of the present invention will be explained.

In Fig. 2, the yarn ends of yarn Y and yarn ends of yarn Y' are:
The thread passage 16 of the fluid ejecting device 15 is placed between the pedestals d and the sliding parts a and c so that they overlap each other. Next, when the switch 14 is turned on, the fluid 75 flows into the two chambers 10, the piston 7 is pushed against the spring 9, and the sliding part &C
is pressed against the pedestal a and grips the threads Y and Y' in an overlapping state. After confirming that the gripping is complete, the switch 22 is turned on and the on-off valve 21 is activated;
When the fluid is opened, fluid is injected from the fluid jet 4 passage 17 for a time set by the timer 20 at an appropriately set fluid pressure by the pressure reducing valve 19, thereby increasing the fluid connection force (
11. Thereafter, the switch 14 is turned off, the spliced yarn is taken out, and all the end yarns of the yarns Y and Y' are processed. Of course, a cutter for processing end yarns may be provided at an appropriate position on the yarn gripping member.

As described above, according to the present invention, since the fluid injection time and fluid pressure can be controlled to be constant, individual differences in the use of the fluid system longitudinal fissure f and variations in repetition are almost eliminated, and as a result, the This has the remarkable effect of significantly improving the quality of the threads. It's a luxury, since each part is relatively small, so it can be made compact and portable.

Example 1 Birefringence is 38X10-'' and fineness is 110 a/
Using semi-drawn polyethylene terephthalate yarn (1jOY) with 3 G , fluid pressure is 4 seconds and 4, respectively.
It was measured by eye using Ki+/a+l G as a reference. )
All of the yarns treated with were false-twisted under the following false-twisting conditions.
False-twisted Kogo 3L7/21. 280 pieces were knitted using a tube knitting machine, and all boil dyeing was carried out at 100° C. for 45 minutes using the following dyeing recipe, and the fluid joint portion (n=xoo) was evaluated.

In addition, the evaluation (is the average value of five experts' visual judgment, divided into ranks 1 to 5).

False twisting conditions: False twisting machine/FK-6 (manufactured by Ishikawa Seisakusho) False twisting speed
Degree: 500 m/1m + Stretching ratio: 1.51 Temperature: 195°C False twisting disk surface speed/False twisting speed: 2,0 False twister: 3-axis friction Twister (manufactured by Barmarg) Dyeing recipe: Dye: Amacron Blue RLS 1% 0Wf
(American Color and Chemical Coilation a-m) Carrier Qi] Polyesca DS
15% OWf dispersant/Disper T
L 11/11 ammonium sulfate
1 f/fl.

Bath ratio 1:
100 The results are shown in the table, and in the case of the present invention, rank 1. Most of the threads were knitted in rank 2, but the quality of the spliced part was very stable.

In the case of conventional products, it has been found that there are some spliced parts belonging to rank 4 and rank 5.

This causes untwisting and staining spots, causing major quality problems7.

Rank: Very good Rank 2: Good Rank 3: Good Rank 4: Some problems Rank 5: Large distance Example 2 Fluid yarn joint of the present invention subjected to false twisting in Example 1 False-twisted yarn (75d/36f) with a splicing part by a device is made into a suede fabric (warp density 150 threads/inch, weft density 8 () threads/inch).
used for the warp (inch), and the normal tentative force for the weft is 11
After weaving using thread (75d/36f) and then finishing with normal dyeing (dip dyeing), visual evaluation was performed by five O-legged barbers. The weaving was carried out in such a way that one thread of fabric always contained 100 or more spliced parts. 100 squares of each positive number were tested. For comparison, a false twisted yarn including a spliced portion spliced by a conventional fluid yarn splicing device was similarly used for the warp of a suede fabric, and a normal false twisted yarn (75d/36f) was used for the weft. The fabric was woven and inspected in the same manner. As a result, all 100 threads of the fabric according to the present invention were graded as A, but the fabric of the conventional fabric had some dyeing spots in the spliced areas, and there were some B grade fabrics.

Items in which there were no defects that could be seen with the naked eye as dyeing abnormalities or crimp abnormalities in the spliced part were rated as A fabric, and those without were rated as B fabric.

[Brief explanation of drawings]

The figures relate to the present invention; FIG. 1 is a perspective view of the fluid splicing device of the present invention, and FIG.
f/) Sawa 1 (This is a connection diagram of the earthen cap. Hub b, d... pedestal a, c... sliding part 2... 111j plate 5... piston receiving part 11... fluid source 15... fluid Injector J9...pressure reducing valve 20
...Timer patent applicant Toyobo Co., Ltd.

Claims (1)

[Claims] It includes a thread gripping member, a fluid ejecting device, a fluid conduit that connects the fluid ejecting device and a fluid source, and an on-off valve provided in the middle of the fluid conduit, so that the fluid from the fluid source flows through the fluid ejecting device. Fluid yarn splicing device with sulfuric acid that is sprayed into the yarn path to splice the yarn.