JPS6031477A - Air nozzle in fiber machinery - Google Patents

Abstract

PURPOSE:To install the detection part of a detecting apparatus easily and at a low cost by installing said detection part of the detecting apparatus for detecting the distribution of thread thickness and thread-breakage onto the exit of the thread passage of an air nozzle body into which a thread which advances with a prescribed tension is inserted and air stream is allowed to act onto the thread. CONSTITUTION:A long rectangular insertion hole 10 is formed in concaved form onto the outlet if a thread passage 2 on an air nozzle body 1, and a luminous body 11 and a light receiving body 12 which constitute the detection part of a thread-breakage detecting apparatus are installed in opposed state onto the insertion hole 10. The light irradiated towards the light receiving body 12 from the luminous body 11 is allowed to cross the whole thread passage 22, and the thread-breakage is detected in a control circuit 14 from the variation of the light received in the case when the thread Y is cut. When there is a distribution in the thickness of the thread Y, and the amount of light in a certain time exceeds a prescribed amount or is less than a prescribed amount, the thread Y is detected as abnormal one in the control circuit 14.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to an air nozzle for applying an air flow to a thread in a textile machine.

Conventional technology In general, in textile machines, yarn is inserted through a clay anosle and a +2 air current is applied to the system to promote its progress, or an air current is applied in the direction of giving a false twist to the yarn. In addition, a detection section for detecting yarn breakage was installed somewhere in the optical path of the air nozzle body, and ζJC yarn breakage was discovered. There was a drawback in that a space was required to install the detection section in the break detection facility, and a room and support were required to support the detection section in China and Germany.

Here, 4;
1 sting (3 in 3) is shown in Figures 1 and 2. The nozzle is an aspirator type (-, -J
−)! A thread passage 2 is inserted into the center of the nozzle body 1, and a vibrator 3 is inserted and fixed at the base end of the thread passage 2. 47a established (
), furthermore, this air chamber 4 is connected to the air supply source (not shown) of the ζ section through the air passage 1'12, and between the air passage 1 and the inner circumferential surface of the yarn passage 2. An annular injection hole 6 is formed in the hole. The air that is pressurized into the air chamber 4 from the air supply source through the air passage 5 is injected into the yarn passage 2 from the annular injection hole 6, and the air flows into the pipe 3 and the yarn passage 2 by this desired airflow. It is designed to accelerate the thread Y inserted through it.

The linear nozzle shown in FIG.
Injection holes 7 and 8 are formed which are eccentric with respect to the yarn Y and which blow air in the forward direction of the yarn Y, imparting rotation (false twist) to the yarn Y traveling in the yarn passage 2. Moreover, the progress of the thread Y is made to advance by one step.

Roughly speaking, the i-[', -, /' nozzle shown in Fig. 5 is arranged so that the jet hole 7.8 of the air nozzle shown in Fig. 3.4 described above is not eccentric to the yarn path 2. The air is injected from holes 9 and 9 as shown in Figure 5, and collides with each other to generate multiple vortices in the yarn path. The Song dynasty (J) is beginning to be given.

OBJECTS OF THE INVENTION The present invention has been made to eliminate the deficiencies existing in the above-mentioned prior art. L) does not need to be installed separately, detection * Reduces the number of parts of iVj The goal is to provide the information that is needed.

Structure of the Invention In order to achieve the above-mentioned object, the present invention has the following characteristics:
The detection section of the detection device is set up and employs an I11 composition.

Example J: Figure 6 below shows an example in which the present invention is integrated into one eye.
〜Explain about FIG. 11. In addition, this example (()
Regarding the part that has the same function as the conventional air nozzle (J1111I) mentioned above, refer to the same No. 19 (;JL/
C1; Q light is omitted.

6 and 7, the first embodiment (1) is embodied in the above-mentioned aspirator type air nozzle. '10 is recessed, and a light emitting body 1'1 and a light receiving body 12, which constitute a detecting section of a thread breakage detecting device, are fixed in the positioning hole 10.10 facing each other.

The light emitting device 4\'11 and the photoreceptor 12 are connected via a lead wire 13 to a control circuit 14 of a yarn breakage detection device. Then, the light emitted in the direction from the light emitter 11 to the photoreceptor 12 crosses the entire yarn path 2, and a part of the illumination light is blocked by the yarn Y running fj7 in the yarn path 2,
When the thread breaks and the amount of light changes, the control circuit 14 detects the thread breakage. Also, if the thickness of the thread Y is uneven and the light PL exceeds a predetermined value or exceeds a predetermined value within a certain period of 7 hours, the control circuit 1/I will C is detected as an abnormal phenomenon in the yarn, and based on this, a ¥2 normal signal is output from the control circuit 14.

Shown in Figures 8 to 10'? l The air nozzle of the second embodiment is a nozzle that can give false twist to the yarn Y,
Attach the four parts 10' to the outgoing end of the thread passage 2, and add 1'+2' to the recessed part of the thread passage 2.
x (+) This false-twisting air nozzle does not allow the yarn passing range to spread over the entire concave portion 10' and is limited to the size of the yarn passage 2 before it, so the false twisting air nozzle surface and the light-receiving surface of the photoreceptor 12 4-1."1j to j!-)"
There is no requirement for C to be installed, and a gap can be left between the two, so it is also easy to manufacture and to make it more efficient.

In addition, if the thread breaks downstream of the nozzle, it will occur at the 1;: clasp (for this, see section h'e j'ii in Fig. 11) or at the 4th part 10' of the thread, so the optical change will increase. The thread IJJ (6) is 1, Sui ((It is possible to do it quickly.

Next, as shown in FIG.
:it lights up.

Figure 11 shows double-twisted yarn: a', i/1 chapter'! N equipment is shown, and this) 5th position is the apron 15 and top 11-ra'16.
J, [f trough I-equipment 17 and said 1 to rat 2 (
・Air nozzle' located at device 17 (1) l/l°
IC) and the two wheel twisting type device installed on the air nozzle '1. /Jki''-艮;1°'1木(,1＼゛10と(
, ]. The spinning device main body 19 includes a rotation support 4\21 which is rotated by a spindle 20 and turns the yarn Y, a bobbin support 23 into which a bobbin 22 is fitted and rotated by an appropriate drive device (not shown), and a bobbin 22.
a bobbin cover 24 supported in a fixed position on the outside of the bobbin cover, a balloon holder 2 supported in a fixed position on the outside of the bobbin cover, and a thread guide tube located in the center of the bobbin support 23. The thread Y, which has been completely pulled out from the bobbin cover 26 and is turned downward via the turn roller 27 fixed to the upper end of the bobbin cover 24, is reciprocated as appropriate.
(not shown) while the stomach is being moved down the bobbin 2.
A7-n guide 2 that can be wound with an I space on 2
8. Note that 29 and 30 are air nozzles attached to the rotary support 21 that promote the advancement of the yarn Y and perform false twisting functions.

Next, the operation of the double-twisting knitting device constructed as shown in the previous Rj will be explained.

Then, the fiber bundle that is thinned by the roller 71 to the device 1γ and continuously sent from the roller 16 to the flon 1 passes through the yarn passage 2 of the air nozzle 18 and is sent to the spinning station jffi book 1.
9 bobbin cover 2/l and pano lane I'a: appeal tree 2! ] Air nozzle 2 of the rotating support 21 is guided between
9.30, then spin 1 to 20 thread guide holes (
(not shown) is folded back and guided into the thread guide tube 2G,
Further, the yarn Y is passed through the turn roller 27 to the yarn roller 28, and the yarn Y traversed by the yarn rollers r1 to 28 is picked up by the rotating yarn yarn 11 and the yarn yarn 22-L.

Inside the yarn passage 2 of the air nozzle 18 is 1j014.II.
Due to L7, the airflow to the exit side of the yarn passage 2 and the air swirling in the yarn 10 circuit 2 are generated, which causes the yarn Y to be accelerated and the twist to be 11v and the twist to be f'J!- J Me, between the top roller 16 and the air nozzle 18.
It is less likely to cause thread breakage. In addition, -■゛Annozzle'IE and thread guide hole of spindle 20 (thread turn +j, j
＞79r″J′r where 1 is placed and 1″ is slanted to the thread
: 1/2 of the actual twist of the number of twists is f-1, and from the yarn turning point to 1l-) 27.1, (between J3 and 1/2 of the actual twist is f-1). ]' At about 1°, 17
From the nozzle '18 to the Fζ flow side, there is a thread Y for one day (since the thread Y is ballooned between the bobbin cover 24 and the balloon protector 25, it is very troublesome to detect thread breakage in this section. Also, the drive 71 to the device 17
It is not only very problematic to install a thread breakage detection device between the top roller 16 and the air nozzle 18 because this is a limited and narrow space; When it burns out, it becomes undetectable.

However, in the embodiment of the present invention, the yarn passage 2 of the Eno7 nozzle 18
A light emitter '1'1 and a light receiver 12 for thread breakage detection are connected to the outlet.
Since the light emitter 11 and the photoreceptor 12 are fitted in, there is no need to create a special installation space for the light emitter 11 and the photoreceptor 12, and the support bracket 1~ for the light emitting element 11 or the photoreceptor 12, the frame that holds the bracket 1~, etc. are omitted. !R3u of the detecting section of the X'C thread breakage detection device can be simplified and lost, and the thread breakage detection operation itself can be performed reliably and smoothly. If yarn breakage occurs on the upstream side of the nozzle 18, that is, between the top roller 1G and the air nozzle 18, the air flow from the air nozzle 18 and the winding movement 1'+ of one side of the spinning device main body will cause the yarn to break straight into the bobbin. 22-1.: The sudden change (increase) in the amount of light inside the near nozzle 18 causes the light breakage to be detected, and the control circuit 14 outputs the thread breakage (114+ Li signal to the indicator lamp (not shown). Or it is output to (J) IJ' (not shown).
That is, the downstream side of the air nozzle and spinning! fi'i ”A i
When C' occurs between the main line 19 and the main line 19, the yarn in the b l-flow receives a force in the direction of 1 from the cutting point and becomes a loop-form (at the exit of the yarn passage 2). Rolled up to the side (J Rare (1)
The light is received from the light emitter 11 by the light retainer 7, 21).
E12/＼Illumination04 The amount of light being emitted changes rapidly (I1 (bottom)
Then, the woven shoulder 1 unwound from the I-tub 0-ra 16
Yarn passage? The inside of the fiber is fl' tG and the exit 1 of the yarn passage is
11 (Light stays at -1M, and as a result, the light is transmitted from the light emitter 11 to the light receiver 12 w)] - Reduced to the width of a person and the thread breaks 4
r(C) is actually detected.

It should be noted that the present invention can also be implemented in the following embodiments (quaternization/J).

(1) The above-mentioned embodiment (* means light emission 1, 1, 1. The >E B change in the thread passage 2 is used to detect thread breakage or thread unevenness. However, instead of this, it is possible to detect the dielectric constant when the yarn Y passes through the yarn path 2, and to detect yarn unevenness or yarn breakage.
The strainer 1 [su, thread Y] comes into contact with the tension fluctuations and detects the
Spelling that detects thread breakage by detecting thread breakage.

(2) In the above embodiment, double j! ! ! I-Yarn Type Spinning 91 - Equipment 11 Horn nozzle has been described, but in addition to this, there are also spinning machines, drawing machines, texturing machines, open-end spinning machines, link spinning machines, etc. - Asiera 1 - Roof 1, etc. Φ fibers (embodied in air nozzles in the seismic region).

Effect 1 As described in detail, in the present invention, the detecting section of the yarn unevenness or yarn breakage detecting device is provided near the yarn passageway of the air nozzle main body. There is no need for the frame or support 1, making it 4i
It is possible to simplify the ``i 3 warning'' and reduce the number of strokes by 1, and there is an effect that thread breakage or thread unevenness can be detected reliably and smoothly.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of a conventional air nozzle, Fig. 2 is a sectional view along the line 1 in Fig. 1, and Fig. 3 is a 138-line Itffi plane view in Fig. 4 of the conventional air nozzle. Third
01 sectional view of the air nozzle in the figure, Ij j further shows a conventional air nozzle (11'' (section 1a1), FIG. The sectional view taken along the line C-C in FIG.
Q sectional view, Fig. 10 is Fig. 8 t,: -E IQ
iJi if+i Figure 111'J is I (Ir ir+iFigure 7) of the double twist type spinning device.Air nozzle body 1, yarn passage 2, binder 2, g:B
1i (chamber 4, air passage 85, ++, p, for Kawakou 6~,
Fitting hole '10, light emitter 11, photoreceptor 12, control circuit 1/'
I.

Claims (1)

[Scope of Claims] 1. A detection device for detecting uneven thickness or yarn breakage at the outlet of the air nozzle main body, through which the thread is inserted with a predetermined tension and airflow is applied to the system. An air nozzle installed in a machine tying machine that is characterized by the provision of a detection Blj. 2. An air nozzle installed in a textile cutting machine according to claim 1, wherein the detection section of the detection device is constituted by a light emitting body and a light receiving body arranged opposite to each other at the exit of the yarn path. . 3. The thread passage outlet of the air nozzle body has four parts,
'l' in which a light emitting body and a light receiving body are arranged facing each other in the recessed part.
:fiFIClaim 111I: An air nozzle for a textile machine according to item (1).