JPS616322A - Structure for supporting nozzle in fasciated spinning apparatus - Google Patents

Abstract

PURPOSE:To improve false twisting effect and facilitate yarn ending, by means of a false twisting apparatus equipped with integrated two nozzles provided in series and an air discharge space provided therebetween and further a guide member capable of closing the air discharge space when the false twisting apparatus is moved to a yarn ending position. CONSTITUTION:A structure for supporting nozzles in a fasciated spinning apparatus equipped with two nozzles 8 and 9, integrated with series connection, and forming swirling streams in mutually opposite directions and a space (S) for discharging a jetted stream from the upstream nozzle 8 provided between both nozzles 8 and 9 to form a false twisting apparatus 4, and a guide member 14, engaged with the space (S), and guiding the movement in the transverse direction of the false twisting apparatus 4 to make the false twisting apparatus 4 movable from the ordinary spinning position to a yarn ending position in the transverse direction. A path 16 for connecting the air discharging space (S) to an air discharge path 17 when the false twisting apparatus 4 is at the ordinary spinning position is provided at the guide member 14.

Description

[Detailed Description of the Invention] Purpose of the Invention (Industrial Application Field) The present invention relates to a support structure for a pulling nozzle in a binding spinning device. The nozzles are disposed in a steady spinning position close to the front roller of the trough 1 apparatus, with a space provided between the two nozzles for air discharge from the first nozzle located on the upstream side. This invention relates to a nozzle support N4 structure in a binding spinning device that moves both nozzles laterally to a threading position during threading for splicing.

(Prior art) In a binding spinning device, untwisted ribbon-like fiber bundles continuously supplied from troughs l-i4 are introduced into a false-twisting nozzle, heated and decomposed by air swirling in the false-twisting nozzle. A bundled spun yarn is produced by twisting, but at a rate of 10 per minute.
It is possible to spin at high speeds of 0 m or more, and has attracted attention in recent years. Incidentally, yarn splicing in binding and spinning apparatuses is generally performed by knotting, in which yarn ends are tied together with a knot, or piecing, in which yarns and fiber bundles are intertwined. Knotting creates accumulations in the knotted yarn and causes the cut end of the yarn to protrude from the yarn, so be careful not to let the yarn guide or feed member pull the yarn into the culm after the knitting machine, etc.
This causes trouble in loom operation. Therefore, although beading is superior, in order to carry out beading in a chained binding spinning device, it is necessary to unpack the finished yarn ends from the package and feed them back through the false twisting nozzle. In order to send the yarn ends backward through the false twisting nozzle in this way, the Utility Model Publication No. 56-4237/L Bow Publication No. 2 published on October 3, 1981, uses air in the yarn running direction as shown in Figure 15. Air l1jIl) I hole 50a that injects and generates a swirling air flow
It is disclosed that an air injection hole 50b is formed inside one heating nozzle 50 for ejecting air in a direction opposite to the running direction of the yarn and generating a swirling air flow. In this heating nozzle 50, the thread passage is continuous from the inlet to the outlet, and the thread can be threaded smoothly from the outlet to the inlet of the heating nozzle 50. However, the structure of the heating nozzle becomes complicated (not only that, but there is also a risk that fibers may clog the reverse air injection hole 50b during steady dispensing).

Moreover, the internal volume of the heating nozzle 50 is expanded by the air injection hole 50b for reverse feeding, which tends to cause problems such as air diffusion and pressure fluctuation during steady spinning.

On the other hand, in order to obtain a bound spun yarn with high yarn strength, two things are important: increasing the number of bundles l1itIl and tightly winding the bundled fibers around the core fiber at a large twist angle. It is very difficult to satisfy the requirement of 100% of the number of wires with one false twist nozzle. In other words, in order to increase the number of bundles IN, it is necessary to prevent the twist applied to the iJ&n bundle from reaching near the nip point of the front roller. If a larger twist is applied to the fiber bundle in order to wrap it tightly, the twist will be traced back to near the nip point of the front roller. In order to solve this problem and sufficiently enhance the bundling effect, for example,
As disclosed in Japanese Patent No. 3, a heating nozzle consisting of two blocks divided along the yarn path with a gap between them is used. However, such a heating nozzle Due to the distance between the two blocks, there is a problem of blotches even if suction is applied from the nozzle inlet side using a suction means during yarn splicing. Two heating nozzles 50 each having an air injection hole 50b for reverse feeding.
In this case, a method has been proposed in which one of the heating nozzles 50 is moved at the spinning position during threading, and air is jetted from the air injection hole 50b with the thread passage connected, thereby threading the thread. There is.

However, the above-mentioned publication does not disclose a specific structure for connecting both nozzles, and furthermore, this device also has the same disadvantages as described above.

(Problems to be Solved by the Invention) In this invention, in order to increase the bundling effect, the heating nozzle is composed of two nozzles, and at the steady spinning position, both nozzles are arranged in the upstream side between the two nozzles. This method solves the problem that in a binding spinning device installed in a knotted state, it is difficult to feed the yarn back into the heating nozzle at the time of yarn splicing. be.

Structure of the Invention (Means for Solving and Overcoming the Problems) As a means for solving the above-mentioned problems, in this invention, two nozzles that generate swirling flows in mutually opposite directions are installed on the front roller of the trough l-device ff. At the adjacent steady spinning position, a space is provided between both nozzles for the exhaust gas discharge from the first nozzle located on the upstream side, and both nozzles are used to thread the yarn during threading for splicing. In a binding spinning device that moves laterally to a position, both nozzles are integrally connected and fitted in the space to a guide 611 provided extending from the steady spinning position to the threading position. The guide member is slidably supported in the state, and the guide member is formed with a communication passage that communicates the space with the outside at a position corresponding to the space for exhaust gas release when the nozzle is in the normal discharge position. The configuration was adopted.

(Function) In this invention, a heating nozzle configured by integrally joining two nozzles is provided with an exhaust gas discharge tube formed between the two nozzles with respect to a guide member fixed at a predetermined position of the machine base. It moves back and forth between the steady dispensing position and the threading position in a state where the spaces are fitted. When the heating nozzle is placed at the steady spinning position, the exhaust discharge space corresponds to the communication path formed in the guide member and communicates with the outside, and the first
Exhaust gas from the nozzle is smoothly discharged to the outside through the air discharge space and the communication path of the kite member. Further, when the yarn is moved laterally from the steady spinning position to the threading position, the exhaust discharge space is reliably closed by the guide member, and the yarn passages of both nozzles are communicated in an airtight manner.

(Example 1) A first example embodying the present invention will be described below with reference to FIGS. 1 to 8. As shown in FIG.
A heating nozzle 4 is disposed above a drafting device each consisting of a pair of back rollers 1, a middle apron 2, and a front roller 3, and the yarn is heated and untwisted by the heating nozzle 4 to be spun as a bundled spun yarn. Y is wound up as a package P onto a bobbin B which is rotatably supported by a cradle arm 7 via a pull-out roller 5 and a traversing drum 6.

The heating nozzle 4 consists of a first nozzle 8 and a second nozzle 9 that generate swirling flows in mutually opposite directions, and as shown in FIG.
has been formed. As shown in FIG. 5, the first nozzle 8 has a thread consisting of a small-diameter inlet part 8a continuously formed from the front roller 3 side (upstream side) to the downstream side, a large-diameter hole part 8b, and an outlet part 8C. A passage is formed in the large-diameter hole 8b, and an air inlet hole 11 whose one end communicates with the air storage chamber 10 is inclined in the direction that promotes the entrainment of the yarn Y and creates a swirling flow inside the large-diameter hole 81). It is opened eccentrically so that it occurs.

The second nozzle 9 disposed on the downstream side has the first nozzle 8
A small-diameter inlet part 9a is formed at a position facing the outlet part 8c, and a large-diameter hole part 9b and an outlet part 9c are continuously formed toward the downstream side to form a yarn passage. The large diameter hole 91) has an air injection hole 1 whose one end communicates with the air storage chamber 12.
3 is inclined in a direction that promotes the advancement 11 of the yarn) and is eccentrically opened so as to generate a swirling flow in the opposite direction to the first nozzle 8. In order for the air flow injected into the large diameter hole 91) to form a swirling flow that effectively heats the yarn Y,
The hole diameter of this air injection hole 13 is made small and 3 to 7
In addition, the air injection holes 13 are formed on the wall surface of the large diameter hole 9b so that the air flow is radiated along the mold surface of the large diameter hole 9b formed by each air injection hole 13. It is preferable to open in the tangential direction.

As shown in FIG. 2, the heating nozzle 4 extends along the longitudinal direction of the machine frame from the steady dispensing position to the threading position R11, and is connected to the first frame with respect to the guide member 14 which is wedge-shaped on one side. 1, the kite rail 147 is fitted into the kite rod 15 extending in the longitudinal direction of the base. The guide rail 14 is slidably supported along a guide (15).The guide rail 14 is cut and removed at a width slightly narrower than the width of the heating nozzle 4 at the steady spinning position, thereby opening up the exhaust storage space S. A communication path 16 is formed to communicate with the outside.The above-mentioned guy is located at the steady spinning position, and at the cutting part of the trail 14 there is a suction duct arranged on the machine base as shown in Fig. 3.5. A suction pipe 17, one end of which is connected to the other, is disposed in parallel between the two, with one part corresponding to the exhaust discharge space S of the heating nozzle 4.

Next, the operation of the apparatus configured as described above will be explained. During steady spinning, the heating nozzle 4 is arranged so that a space S is formed in the idle rail 14 and corresponds to the communication path 16, as shown in FIG. There's a roar. Then, the fiber bundle (fleece) F is drafted to a predetermined magnification by a traft device, is continuously supplied to the heating nozzle 4, is heated and untwisted in the jlJ twisting nozzle 4, produces a bundled spun yarn Y, and is drawn out. roller 5
Then, the twill drum 6 is put on the bobbin B and the package P is removed. Since the exhaust gas from the first nozzle 8 is discharged from the space S to the suction vibrator 17, the exhaust gas from the first nozzle is discharged from the second nozzle.
Artificial part ga1. of nozzle 9. : The action of the heating nozzle 4 is sufficiently applied to the yarn Y without intruding and obstructing the action of the second nozzle, the binding effect is increased, and a tied I7i yarn with strong yarn strength is produced. . Since a weak suction force is always acting on the suction vibrator 17, exhaust from the space S is performed smoothly, fluff is reliably discharged to the outside, and the quality of the yarn is improved.

When the yarn Y breaks during spinning, the cradle arm 7 supporting the package P is pushed up (not shown).
to separate the package P from the traversing drum 6. On the other hand, the back roller of the drafting device immediately stops, and the other rollers continue to rotate and continue to roll out the G'J fiber bundle F (
and middle - [b [cut between 1 and 2! fI.

Next, by turning the package drive [)-ra of the yarn splicing device jφ and covering the yarn end bitter up mechanism #Il, the yarn end wound around the package P is pulled out and gripped by the beadin crawler 18, and the beadin The crawler 18 is positioned directly at the outlet 9c of the second nozzle 9. Then the second
As shown by the chain line in the figure, the heating nozzle 4 is moved together with the begin crawler 18 in the axial direction (along the front roller 3) to the threading position.
When moving to the second position, the heating nozzle 4 is placed on the guide rail 1.
4 and the guide rod 15 k-=9 and move in parallel while maintaining the posture of γ wealth dispensing position 1). When the threading position is reached, the space S is closed as shown in Figure 6.]・Rail 14
The yarn passages of the first nozzle 8 and the second nozzle 9 are communicated with each other in a substantially airtight manner.

By moving to the threading position, a space is created below the heating nozzle 4, that is, on the inlet side of the first nozzle 8, into which a known #4 thread end suction pipe 19 can enter.

Therefore, in this state, as shown in FIG.
When it is connected to the inlet of the first nostle 8 and activated, the suction action of the yarn end suction tube 19 does not decrease to the outlet part 9C of the second nostle 9 and the yarn end guided through the beading crawler 18. is smoothly inserted from the outlet part 9c of the second nozzle 9 toward the artificial part 8a of the first nozzle 8. When threading is completed, the yarn end is cut to a fixed length, and then the heating nozzle 4 and yarn end suction tube 19 move to the steady spinning position, leading to the nip point of the front roller 3, where the fibers of the traft device are It is joined to the bundle F and spliced by a predetermined operation. When the heating nozzle 4 moves from the threading position to the steady spinning position, the heating nozzle 4 is moved in parallel while keeping its posture constant in the same way as described above, and when it reaches the steady spinning position, the space S corresponds to the communication path 16 of the guide rail 14 and corresponds to the suction vibrator 17.

As described above, the heating nozzle 4 has the first nozzle 8 and the second nozzle 9 integrally formed, and moves in parallel along the guide rail 14 in a constant posture, so that the yarn end 1 suction @ 19 and the first nozzle 8 are connected to each other. This can be easily done with good adhesion.Also, heating nozzle A IJ first nozzle 8 and 7A2
In the space S formed between the nozzles 9, when the guy 1 and the rail 14 are fitted together, the space S is automatically closed and the yarn is fed back by moving from the steady spinning position to the threading position. can be done smoothly. Historically, in this embodiment, the guide rail 14 is not composed of one rail that is common to all spindles, but has a cut section for each spindle, so the mounting position of the bO twist nozzle 4 with respect to the space S must be adjusted for each spindle. This makes it easy to adjust the adhesion between the heating nozzle 4 and the guide rail 14 to the optimum state. In addition, if a guide slope 14a is formed at the cut end of the guide rail 14 as shown in FIG. 4, the heating nozzle 4 and the one-force guide rail 14 can be fitted more smoothly when returning to the steady spinning position. I will be sent to you.

<Embodiment 2> Next, a second embodiment embodying the present invention will be described with reference to FIGS. 9 and 10. KI in this example? In J5, the structure of the guide rail 14 is different from that of the above embodiment.
The other configurations of the i-rizo are the same. The kite rail 14 of this embodiment is formed in common with multiple shafts, and at the steady spinning position constitutes a communication path that communicates the space S formed between the first nozzle 8 and the second nozzle 9 with the outside. A cavity 20 is transparently provided for this purpose. Therefore, in the apparatus of this embodiment, as in the previous embodiment, by moving the heating nozzle 4 from the steady spinning position to the threading position, the exhaust discharge gap S is automatically adjusted.
is closed, and the thread passages of both nozzles are communicated in an airtight state, from the outlet section 9C of the second nozzle 9 to the inlet section 8a of the first nozzle 8.
Threading toward the heating nozzle 41 can be smoothly carried out. Also, in this embodiment, since there is no cutting part in the slide rail 14, the sliding guide f'4 of the heating nozzle 4 is enhanced and the heating nozzle 41
1. Transfer smoothly 8. Cover.

(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to FIGS. 11 and 12. The device of this embodiment differs from the previous embodiments in that there is no guide rod 15 and the heating nozzle 4 is supported only by the kite rail 14. Chi 1ζ
As shown in FIG. 11, a protrusion 21 is formed along the longitudinal direction of the rail 17'l, and an engagement groove 2 is formed on the lower surface.
2 is also formed along the direction of the sword. υ]1
The twisting nozzle 4 includes an engaging member 24 that is fixed in front of the heating nozzle 4 by a screw 23 in a state that the twisting nozzle 4 is engaged with the protrusion 21;
The engagement groove 22 is activated by f! The kite rail 141.1 is slidably attached to the guy [rail] 4 by means of an engaging member 26 fixed to the front surface of the heating nozzle 4 by means of a screw 25 in the ll1ri state. As in the embodiment 1, the steady spinning (it is cut in order to form the communication path 16 at the Q position).In the apparatus of this embodiment as well, the heating nozzle 4 is moved from the steady spinning fI7 position to the threading position 11. As a result, the space S is closed by the guide rail 14, and threading is carried out smoothly in the same manner as described above (11).Also, in the device of this embodiment, since there is no guide bar 15, the structure is more difficult to thread. When attaching the 0-twist nozzle 4 to the guide rail 14, there is no need to move it from the side of the guide rail 14 to the corresponding weight.
Can be attached to.

4c. The present invention is not limited to the above embodiments. For example, as shown in FIG. 13, the first nozzle 8 and the second nozzle 9 are ~ The row 53 may be bent at a certain angle θ in a plane perpendicular to the axis of the row 53. When the yarn paths of both nozzles are bent in this way, the yarn Y travels along the inner wall surface of the inlet portion 9a of the second nozzle 9, so
The twist applied to the yarn Y by the nozzle 9 is prevented from propagating to the first nozzle 8 side, and the swirling flow of the first nozzle 8 acts in the direction of untwisting the fiber bundle applied to the fiber bundle by the second nozzle 9. This reduces the number of twists in the central fiber bundle and promotes the derivation of fibers whose ends, which are not twisted into the central fiber bundle, are free, thereby greatly enhancing the binding effect in the second nozzle 9. Furthermore, as shown in FIG. 14, protrusions 21 are provided on both the upper and lower sides of the guide rail 1t1.
Within the scope of the invention, such as forming a guide rail 14 and slidably supporting and covering the heating nozzle 4 (
Second, it is also possible to arbitrarily change the shape, structure, etc. of each part.

According to this defense, two nozzles are integrally formed, and an additional nozzle is inserted into the exhaust discharge space formed between the two nozzles and fitted to the kite member. Since the two nozzles slide in the same state, the mutual positions of both nozzles are always kept constant, and when they are moved laterally from the steady spinning position 1 to the threading position, the space between the two nozzles is automatically ensured. When the yarn passages of both nozzles are closed, the suction air flow is passed through the inlet of the first nozzle so that the yarn enters from the outlet of the heating nozzle in the direction [-j]. () Threading can be done easily and smoothly, ensuring that the threads are spliced securely.
- It has an excellent effect of increasing energy.

[Brief explanation of the drawing]

1 to 8 show a first embodiment embodying the present invention, in which FIG. 1 is a side view, FIG. 2 is a front view of main parts of 1j, FIG. 3 is a perspective view, and FIG. 1゜t 7J Idle rail main part perspective view, Figure 5 is a side sectional view of the heating nozzle, Figure 6 (J
It has moved to the threading position! Side sectional view of the heating nozzle of &
Figure 7 is a side sectional view showing the threading state, Figure 8 is a top view, Figures 9 and 10 are a second embodiment, Figure 9 is a perspective view, and The figure is a side sectional view, No. 11.12
11 is a perspective view, FIG. 12 is a side sectional view, FIG. 13.14 is a side sectional view showing a modified example, and FIG. 15.16 is a side sectional view showing a modified example. FIG. 2 is a side sectional view showing a conventional device. Front roller 3. III] Twisting nozzle small nozzle 4 nozzle 8
．． 2P! 2 nozzle 9, inlet portions 8a, 9a, outlet portions 8a, 9c, kite rail 14, guide shaft 15, communication path 16, suction vibrator 17, thread end suction tube 19, cavity 20, space 50 14r1 Applicant Toyota Jidosha Co., Ltd. Loom Manufacturing Representative Patent Attorney On 1) Hironobu Figure 1

Claims (1)

[Claims] 1. Two nozzles that generate swirling flows in opposite directions are arranged such that the first nozzle is arranged on the upstream side between the two nozzles at a steady spinning position close to the front roller of the drafting device. In a binding spinning device that is arranged with a space for exhaust gas discharge and moves both nozzles laterally to the threading position during threading for splicing, the two nozzles are integrally connected and Both nozzles are slidably supported in a state of being fitted in the space with respect to a guide member extending between the spinning position and the threading position, and the nozzle is located in the steady spinning position in the guide member. 1. A support structure for a nozzle in a binding spinning device, characterized in that a communication path is formed at a position corresponding to the exhaust discharge space to communicate the space with the outside when the space is present in the binding spinning device. 2. The nozzle support structure in a binding spinning device according to claim 1, wherein the communicating path is formed by cutting the guide member at a steady spinning position.