JP2003268637A - Spinning device and yarn ending method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a success rate of yarn ending, since it is possible to make the final end part of a doubled yarn wound on a package as a state of interlacing single yarns each other and therefore to such and hold a plurality of yarns constituting the doubled yarn surely with a drawing out device. <P>SOLUTION: This spinning device has a spinning unit equipped with a guiding hollow shaft body 28 formed with a yarn passage 32, and a spinning member P arranged with a plurality of yarn-producing units U for producing the yarns by utilizing a revolving air flow acting on the tip end part 29 of the guiding hollow shaft body, an interlacing means T for interlacing a plurality of single yarns Ya, Yb produced by the yarn-producing unit each other according to an yarn ending request by the spinning unit, a yarn ending device e2, and the drawing out device e3 for drawing out the yarn ends of a plurality of interlaced and cut yarns and introducing them into the yarn ending device. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention supplies a plurality of fiber bundles to a draft device, and a plurality of drafted fiber bundles are
By twisting the swirling air flow,
The present invention relates to a spinning device that produces a plurality of single yarns and then combines a plurality of single yarns to produce a composite yarn, and a yarn splicing method in the spinning device.

[0002]

2. Description of the Related Art Conventionally, a plurality of fiber bundles are supplied to a draft device, and a plurality of drafted fiber bundles are respectively swirled at two locations from a pair of compression injection ports arranged at predetermined intervals. A spinning device is known in which a plurality of single yarns are produced by producing a plurality of single yarns, and then a plurality of single yarns are combined with each other to produce a combined yarn by a yarn guide. At the time of splicing, the yarn end of the compound yarn wound in the winding package is pulled out from the winding package by a suction mouse as a well-known pulling device and introduced into a well-known yarn splicing device. The plurality of single yarns that are restarted and produced are suction-held by a known suction nozzle, and are introduced into a yarn splicing device.
After that, with the composite yarn pulled out from the winding package,
A spinning device and a yarn splicing method in the spinning device, which splice a composite yarn composed of a plurality of single yarns generated by restarting spinning, are known.

In the composite yarn manufactured by the above-mentioned spinning device, the generated yarn is ballooned upstream of the composite yarn guide due to the action of the downstream swirl airflow among the above-mentioned two swirl airflows. In addition, a plurality of adjacent single yarns are loosely entangled and wound up.

[0004]

However, in the system in which the hollow guide shaft body in which the yarn passage is formed and the swirling air flow acting on the tip end portion of the hollow guide shaft body is used to generate the yarn. Since the spinning method is different from that described above, ballooning does not occur. Therefore, when the composite yarn is manufactured by using the method including the hollow guide shaft body, the plurality of single yarns are not entangled with each other, but simply aligned. Due to
In the yarn splicing operation, when the sucking mouth of the compound yarn wound in the winding package is taken out by the suction mouth, it may not be possible to suck all of the plurality of single yarns constituting the compound yarn. In this case, the yarn of the package is entangled with the single yarn that is not squeezed, resulting in a squeezing error
Therefore, there is a problem that the success rate of yarn splicing is low.

An object of the present invention is to solve the problems of the above-described conventional spinning device and the yarn splicing method in the spinning device.

[0006]

In order to achieve the above-mentioned object, the present invention firstly provides a spinning device with a hollow guide shaft body in which a yarn passage is formed. A spinning unit including a spinning member, in which a plurality of yarn generating units that generate a yarn by using a swirling airflow that acts on the tip portion are arranged, and a yarn generating unit that generates a yarn in response to a yarn splicing request of the spinning unit The entanglement means for entangled the plurality of single yarns, the cutting means for cutting the entangled single yarns, the yarn splicing device, and the yarn end of the entangled and cut single yarns, Secondly, there is provided a drawing device to be introduced into the splicing device. Secondly, a yarn defect part detecting means, an entanglement means and a cutting means for detecting a yarn defective portion and making a yarn splicing request are provided. Detecting result of yarn defect part by part detecting means Are those provided with a control means for operating on the basis, in the third, the confounding means, which is disposed downstream of the cutting means, the fourth,
The entanglement means is formed in the hollow guide shaft body that constitutes the yarn generating unit, and the swirling air flow is applied to the supplied fiber bundle to direct it from the opening formed at the tip of the hollow guide shaft body to the yarn discharge port. It is an auxiliary nozzle for generating a suction force.

Further, in order to achieve the above-mentioned object, the present invention comprises a hollow guide shaft body in which a yarn passage is formed, and utilizes a swirling air flow acting on the tip of the hollow guide shaft body to form a yarn. A yarn joining method in a spinning device, wherein a plurality of single yarns are generated by a spinning member in which a plurality of yarn generating units to be generated are arranged, and the single yarns are aligned and combined.
After the yarn deficient portion is detected and the entanglement means is operated based on the result of the yarn deficient portion detection means for making a yarn splicing request, at least part of the entangled single yarn is cut. After passing through the means, the cutting means is actuated to cut the entangled single yarns, and the yarn ends of the entangled single yarns after cutting are pulled out and introduced into a yarn splicing device, Is to do.

[0008]

EXAMPLES Examples of the present invention will be described below, but the present invention is not limited to these examples as long as the gist of the present invention is not exceeded. In the following description, as an example, the spinning device of the present invention and the yarn splicing method in the spinning device will be described using an example in which two yarns are combined to produce a twin yarn.

First, the overall construction of the spinning apparatus of the present invention as an example will be described with reference to FIG.

Reference numerals 1a and 1b are fiber bundles accommodated in the cans 2a and 2b, 3a and 3b are tubular fiber bundle guides, and D is a back roller 4, a third roller 5 and an apron belt. 6'is composed of a second roller 6 and a front roller 7 mounted on it.
It is a line type draft device. P is a spinning member which will be described later, and contains two sets of yarn producing units. 8 is
A compounding yarn guide 9 is a yarn feeding member including a nip roller 9a and a delivery roller 9b.
Is a cutter as a yarn cutting means, and 10 is a slack tube for temporarily storing the double yarn Y discharged from the spinning member P whose spinning has been restarted during the yarn joining operation, Reference numeral 11 is a yarn clearer as a yarn defect portion detecting means. T is an entanglement device as an entanglement means for entanglement of the two yarns Y by generating a swirling airflow or a turbulent airflow, and 12 is a package wound around a bobbin 13 supported by a bobbin holder (not shown). And
The package 12 is configured to rotate when the friction roller 14 contacts the surface of the package 12. Reference numeral 15 is a traverse guide of a traverse device (not shown). The bobbin 13, the friction roller 14, the traverse guide 15 and the like supported by the bobbin holder constitute the winding section W.

The above-mentioned cans 2a, 2b, fiber bundle guides 3a, 3b, drafting device D, spinning member P, compounding yarn guide 8, yarn feeding member 9, cutter C, slack tube 10, yarn clearer 11, entanglement device. A spinning unit is configured by T, the winding portion W, and the like, and a large number of such spinning units are arranged in parallel along a machine stand (not shown) to form a spinning device. Further, cans 2a, 2b, fiber bundle guides 3a, 3b, drafting device D, spinning member P, compounding yarn guide 8, yarn feeding member 9, cutter C, slack tube 10, yarn clearer 1
1. The entanglement device T and the winding unit W are arranged in this order from the upstream side toward the downstream side (the running direction of the fiber bundles 1a, 1b and the double yarn Y).

The fiber bundles 1a and 1b drawn out from the cans 2a and 2b are drafted by a common drafting device D, and then enter two sets of yarn producing units constituting a spinning member P to produce respective yarns. The two single yarns Y and Yb generated by the unit, and the two single yarns Y generated
Then, a and Yb are aligned by the yarn guide 8 to form the double yarn Y. Then, the twin yarn Y is fed by the yarn feeding member 9
Nip roller 9a and delivery roller 9
It is sandwiched by b and sent in the direction of the winding portion W. Then, in the winding portion W, while being traversed by the traverse guide 15, it comes into contact with the friction roller 14,
It is configured to be wound around the rotating package 12.

Next, with reference to FIG. 2, one yarn generating unit U of the two yarn generating units U having the same structure and constituting the spinning member P will be described.

The yarn producing unit U is mainly composed of a spinning nozzle portion N fixed to a first swing arm, which will be described later, and a hollow guide shaft body portion S which can be combined with or separated from the spinning nozzle portion N. Has been done.

The spinning nozzle portion N has one of the fiber bundles 1a and 1b drafted by the drafting device D, for example, a guide hole 16 into which the fiber bundle 1a is introduced, and a guide hole 16.
It has a needle holder 18 composed of a needle 17 provided on the flow path of the fiber bundle 1 a discharged from the needle holder 18, and the needle holder 18 is attached to a nozzle block 19. The nozzle block 19 has a spinning chamber 20 inside and a plurality of air injection nozzles 21 for generating a swirling airflow in the spinning chamber 20. The needle holder 18 is fitted into an opening 22 ′ at the tip of the housing 22, and the nozzle block 19 located inside the housing 22 is provided with an intermediate plate member 23 having an opening 23 ′ into which the nozzle block 19 can be fitted. And is fitted into an opening 24 ′ formed in the first swing arm 24. 25
Is an air reservoir formed in the housing 22 so as to surround the compressed air introduction port of the air injection nozzle 21, and the air reservoir 25 communicates with the compressed air passage 26 to form the compressed air passage 26. The pipe body 27 is connected to a compressed air supply source (not shown).

An air reservoir 25 is passed through a compressed air passage 26 and the like.
The compressed air supplied to the nozzle is ejected from the air injecting nozzle 21 toward the tip 29 of the hollow guide shaft 28, which will be described later, to generate a swirling airflow in the spinning chamber 20, and to guide the needle holder 18. In the hole 16, the spinning chamber 2
It is configured to generate an air flow toward the 0 direction and generate a suction air flow in the vicinity of the fiber bundle introduction port located on the front roller 7 side of the guide hole 16. This sucked air flow facilitates the introduction of the fiber bundle 1a from the front roller 7 into the guide hole 16 of the needle holder 18.

The hollow guide shaft body 28 constituting the hollow guide shaft body portion S has a truncated cone-shaped tip portion 29 and a tubular body portion 31 having an annular internal air passage 30. A thread passage 32 is formed along the axis of the body 28. The internal air passage 30 and the yarn passage 32 are connected to the auxiliary nozzle 3
3 and the internal air passage 30 is connected to a compressed air supply source (not shown) via a connecting tool 35 connected to a through hole 34 formed in the tubular body portion 31. The pipe 36 is connected. The auxiliary nozzle 33 is configured so as to be located closer to the distal end portion 29 side than the through hole 34 formed in the tubular body portion 31.

The compressed air jetted from the auxiliary nozzle 33 enters the yarn passage 32 formed in the hollow guide shaft 28 and is directed toward the yarn discharge port 28 'located on the side opposite to the tip 29 of the hollow guide shaft 28. It is configured to flow toward.

Reference numeral 37 is a shaft mounting block to which the hollow guide shaft 28 is attached.
Is a base 38, a truncated cone 39 located in the center of the base 38, a cylindrical portion 40 located in the center of the base 38 opposite to the truncated cone 39, and a base on the side of the cylinder 40. Part 3
8 and a plurality of legs 42 having screw holes 41 formed therein, and the hollow guide shaft 28 is inserted into a through hole 43 formed along the axis of the shaft mounting block 37. Is inserted and attached, and the distal end portion 29 of the hollow guide shaft body 28 is
Are configured to protrude from the truncated cone portion 39.

Reference numeral 44 is a second swing arm, and a mounting pedestal portion 45 of the second swing arm 44 is formed with a mounting hole 46 into which the cylindrical portion 40 of the shaft body mounting block 37 can be inserted. . Further, around the mounting hole 46 formed in the mounting pedestal portion 45, a leg portion mounting hole 47 into which the leg portion 42 formed in the shaft body mounting block 37 is mounted is formed. The portion of the leg insertion hole 47 formed in the mounting pedestal portion 45, which is located on the side opposite to the side on which the leg portion 42 is inserted, has a large inner diameter so that the head 48 ′ of the bolt 48 can be inserted. A space 49 is formed, and a ring-shaped protrusion 50 is provided so as to project on the inner peripheral surface of the leg insertion hole 47 adjacent to the boundary between the leg insertion hole 47 and the space 49. There is.

Next, the mounting means of the shaft mounting block 37 to which the hollow guide shaft 28 is mounted on the mounting pedestal portion 45 of the second swing arm 44 will be described.

The cylindrical portion 40 of the shaft mounting block 37 to which the hollow guide shaft 28 is mounted is inserted into the mounting hole 46 formed in the mounting pedestal portion 45 of the second swing arm 44, and in advance, In the leg insertion hole 47 formed in the mounting pedestal portion 45 into which the coil spring 51 is inserted,
The leg portion 42 formed on the shaft attachment block 37 is inserted. Coil spring 51 inserted in leg insertion hole 47
The end portion on the side of the space portion 49 is configured to abut on the ring-shaped protrusion 50 provided on the inner peripheral surface of the leg insertion hole 47. Next, the mounting pedestal portion 45 of the second swing arm 44
The bolt 48 is inserted from the space portion 49 side formed so as to pass through the coil spring 51 inserted in the leg insertion hole 47, and the tip end portion of the bolt 48 is formed on the shaft body mounting block 37. By being screwed into the screw hole 41 of the leg portion 42, the mounting pedestal portion 45 of the second swing arm 44,
Shaft body mounting block 3 to which the hollow guide shaft body 28 is attached
Attach 7.

Mounting base 45 for the second swing arm 44
When the shaft body mounting block 37 to which the hollow guide shaft body 28 is mounted is attached to the shaft body mounting block 37, as described above, the shaft body mounting block 37 is inserted into the leg insertion hole 47 formed in the mounting pedestal portion 45. 42 of the coil spring 51 inserted into the leg insertion hole 47 while the leg portion 42 of FIG.
The end on the side abuts on the ring-shaped protrusion 50 provided on the inner peripheral surface of the leg insertion hole 47, and the other end of the coil spring 51 contacts the bottom surface of the leg 42. Therefore, due to the biasing force of the coil spring 51, the leg portion 42 of the shaft attachment block 37 is
It is urged in a direction of coming out from a leg insertion hole 47 formed in the mounting base 45. In addition, the leg portion 42 of the shaft body mounting block 37 is fixed to the mounting base portion 45 so that the leg portion 42 of the shaft body mounting block 37 does not completely come out from the leg portion insertion hole 47 formed in the mounting base portion 45. Before coming out from the leg insertion hole 47 formed in the above, the head 48 ′ of the bolt 48 is brought into contact with the step portion 52 formed at the boundary between the leg insertion hole 47 and the space 49. Is configured.

An opening 22 'into which the above-mentioned needle holder 18 can be fitted is formed in the housing 22 attached to the tip end portion of the above-mentioned first swing arm 24. In this embodiment, two sets are provided. Since the spinning device having the yarn generating unit U is shown, two openings 22 'are also horizontally formed so that the two needle holders 18 can be fitted therein. Further, two fitting holes 53 are formed at the tip of the first swing arm 24 so as to correspond to the two openings 22 ′ formed in the housing 22. The conical base portion 39 of the shaft mounting block 37 to which the hollow guide shaft body 28 is attached, which is disposed in the mounting base portion 45 of the second swing arm 44, is inserted into the fitting hole 53. Is configured.

A cavity 54 having an opening at the lower end of the tip of the first swing arm 24 is formed inside the first swing arm 24 along the longitudinal direction thereof. 5
4 is connected to an air supply source (not shown).
In the spinning state in which the spinning nozzle portion N and the hollow guide shaft body portion S are united, and the two yarn producing units U incorporated in the spinning member P produce the single yarns Ya and Yb, respectively, are empty. A weak suction air flow is generated in the body portion 54 to suck and remove floating fibers and dust generated during spinning and to function as escape of compressed air jetted from the air jet nozzle 21 of the nozzle block 19. Has been done.

Next, the process of producing a single yarn in each yarn producing unit U having the above construction will be described. In addition, here, of the cans 2a and 2b, the fiber bundle 1a drawn out from one of the cans 2a and drafted,
The process of producing the single yarn Ya will be described.

In the process of producing the single yarn Ya, the spinning nozzle portion N and the hollow guide shaft body portion S are united, and the fiber bundle 1a pulled out from the can 2a and supplied to the draft device D is drafted. After being drafted by the device D, the suction air flow near the guide hole 16 of the needle holder 18 generated by the action of the blast air jetted from the air jet nozzle 21 enters the guide hole 16 and then,
It enters the spinning chamber 20 which is fed along the circumference of the needle 17.

The fibers constituting the one fiber bundle 1a sucked into the spinning chamber 20 are jetted from the air jet nozzle 21 and acted by the swirling air current which swirls at a high speed near the tip 29 of the hollow guide shaft 28. Part of the fiber bundle 1a is inverted while being separated from the fiber bundle 1a, and is wound around the outer periphery of the tip end portion 29 of the hollow guide shaft body 28.
While being swung around a, it wraps around its outer periphery,
It is twisted in the direction of the swirling air flow. Further, a part of the twist applied by the swirling airflow tries to propagate in the direction of the front roller 7, but since the propagation is blocked by the needle 17, the fiber bundle 1 sent from the front roller 7
a is not twisted by the above twist. The fibers twisted as described above are sequentially generated in one of the real twisted single yarns (real twisted yarns) Ya, and the hollow guide shaft 28
The yarn passes through the yarn passage 32 and is discharged from the yarn discharge port 28 '.
In the normal production process of the single yarn Ya, compressed air is not supplied to the internal air passage 30 of the hollow guide shaft body 28 from the compressed air supply source through the pipe 36 and the connecting member 35. Therefore, the compressed air is not supplied from the auxiliary nozzle 33 into the yarn passage 32.

The spinning member P includes two sets of yarn producing units U.
Since the yarn is built in, 2
The single yarns Ya and Yb of the book are generated. Single yarns Ya and Yb generated by the respective yarn generation units U
Is drawn through the compounding yarn guide 8 shown in FIG. 1 and formed into a double yarn Y, which is then nipped by the nip roller 9a and the delivery roller 9b which form the yarn feeding member 9, and the package 12 direction. Then, while being traversed by the traverse guide 15, it comes into contact with the friction roller 14 and is wound up on the rotating package 12.

By the way, when the single yarns Ya and Yb have a defective portion such as a thick portion or a thin portion such as a slab, the defective portion is detected by the yarn clearer 11.
The yarn defect portion detection signal from the yarn clearer 11 is sent to the controller M1 as shown in FIG. This yarn defect portion detection signal becomes the yarn splicing request signal. The control device M1 operates the cutter C arranged between the yarn feeding member 9 and the slack tube 10 to cut the double yarn Y, and normally closes the yarn based on the instruction signal from the control device M1. To open the switching valve V1 in the compressed air supply source A1 to supply compressed air to the interlacing device T,
By operating the entanglement device T, the single yarns Ya and Yb are entangled, and the single yarns Ya and Yb are entangled with each other.
Will be wound up on the package 12.

Further, the driving of the back roller 4 and the third roller 5 is stopped by the above-mentioned yarn defect portion detection signal, and the second roller 6 and the third roller 5 among the front rollers 7 which are constantly rotating. In between, the fiber bundles 1a and 1b are cut. The fiber bundles 1a and 1b sent out from the front roller 7 are still supplied to the spinning member P that is being driven, and accordingly, the single yarns Ya and Yb are generated, and the generated single yarns Ya and Yb are
After passing through the yarn feeding member 9, it is sucked and removed by a duct (not shown) located immediately upstream of the cutter C. Thereafter, the ejection of the compressed air from the air injection nozzle 21 of the yarn generating unit U constituting the spinning member P is stopped, the operation of the yarn generating unit U is stopped, and the package 12
Is separated from the friction roller 14 to stop the rotation of the package 12.

Next, the yarn splicing method will be described. Since the yarn splicing process is the same for the two yarn production units U, the fiber bundle 1a pulled out from one of the cans 2a.
The splicing process of the single yarn Ya generated by the above will be described.

The fiber bundle 1a whose tip is gripped by the stopped third roller 5 is transferred to the back roller 4
It is also fed by re-driving the third roller 5 and supplied to the yarn generating unit U of the spinning member P via the second roller 6 and the front roller 7.
When the driving of the draft device D which has been stopped is restarted, the injection of compressed air from the air injection nozzle 21 and the auxiliary nozzle 33 is started. That is, at the time of restarting the spinning for the yarn splicing work,
In the yarn generating unit U, compressed air is being jetted from the air jet nozzle 21, and compressed air is supplied to the internal air passage 30 of the hollow guide shaft body 28 from the compressed air supply source through the pipe 36 and the coupling tool 35. Is being supplied,
Therefore, the compressed air is also injected into the one passage 32 from the auxiliary nozzle 33.

Since the compressed air jetted from the air jet nozzle 21 flows in the feeding direction of the fiber bundle 1a while swirling, the fiber bundle 1a introduced into the guide hole 16 of the needle holder 18 is loosened by the swirling airflow. While being in the false twist state, it is fed through the needle 17 to the vicinity of the opening 28 ″ formed at the tip of the hollow guide shaft body 28.

The compressed air jetted from the auxiliary nozzle 33 is supplied to the yarn passage 32 formed in the hollow guide shaft 28.
And an opening 28 ″ formed at the tip of the hollow guide shaft 28 while forming a swirling airflow inside the hollow guide shaft 28.
An air flow in the suction direction (direction toward the inside of the hollow guide shaft 28) is generated in the vicinity. As a result, the fiber bundle 1
a can be continuously drawn into the thread passage 32 of the hollow guide shaft 28.

The false-twisted fiber bundle 1a sent to the vicinity of the opening 28 "formed at the tip of the hollow guide shaft 28 is, as described above, attracted from the opening 28" by the suction flow from the opening 28 ". The fiber bundle 1 is sucked into the passage 32.
In the yarn passage 32, a is exposed to the swirling airflow generated by the compressed air jetted from the auxiliary nozzle 33. By the compressed air jetted from the air jet nozzle 21, the swirling airflow generated in the spinning chamber 20 and the compressed air jetted from the auxiliary nozzle 33
Due to the swirling air current generated in the yarn passage 32 of the hollow guide shaft body 28, the fiber bundle 1a in the loose false twist state is spun into a bundled fibrous yarn (bundling yarn) and It will be discharged from the yarn discharge port 28 '.

As described above, the spinning is restarted, and the single yarns Ya and Yb produced by the two yarn producing units U incorporated in the spinning member P are arranged side by side in the longitudinal direction of the machine. A well-known suction nozzle which is disposed on a traveling carriage E capable of traveling along the axis and is rotatable to a position near the yarn discharge port 28 'of the hollow guide shaft 28 as shown in FIG. By the upward rotation of e1 (the rotation up to the position indicated by the chain double-dashed line in FIG. 5), suction is performed simultaneously. After that, the suction nozzle e1
The two single yarns Ya and Yb, which are collectively suction-held by the suction nozzle e1, are passed through the compounding guide 8 and aligned to become twin yarns Y as the carriage E rotates downward. It is introduced into a known yarn splicing device e2, such as a knotter or a splicer, which is disposed in. Suction nozzle e
While being guided to the yarn splicing device e2 by No. 1, the twin yarn Y
Is sandwiched between the nip roller 9a and the delivery roller 9b that form the yarn feeding member 9, and the twin yarn Y is stably fed. Thereafter, by stopping the supply of the compressed air from the compressed air supply source to the auxiliary nozzle 33 and stopping the injection of the compressed air from the auxiliary nozzle 33 into the yarn passage 32, the hollow guide shaft body 28 The swirling air flow disappears, and the normal spinning state is restored. The traveling carriage E travels to the spinning unit corresponding to the yarn splicing request and stops in response to the yarn defect portion detection signal (yarn splicing request). In FIG. 5, w1 is the bobbin 13
Is a cradle arm that supports the.

In addition, in parallel with the above-mentioned work of introducing the double yarn Y into the yarn splicing device e2 by the suction nozzle e1,
Similarly, the suction port of the well-known suction mouth e3 provided on the traveling carriage E is brought close to the package 12 which is rotating in the opposite direction to the winding direction by a reverse roller (not shown), Although the twin yarn Y that has been wound is sucked, in the present invention, as described above, the end portion of the twin yarn Y that is wound in the package 12 is a single yarn Ya over a predetermined length. Since the Yb's are entangled with each other, the two single yarns Ya, Yb forming the double yarn Y can be reliably suction-held by the suction mouth e3. Next, the suction mouth e3 that holds the two single yarns Ya and Yb forming the double yarn Y by suction is rotated upward to introduce the double yarn Y into the yarn joining device e2. Then, the double yarn Y composed of the single yarns Ya and Yb generated by the two yarn generating units U incorporated in the spinning member P and the double yarn Y drawn out from the package 12 are introduced into the yarn joining device e2. After that, the yarn splicing device e2 is driven to splice both twin yarns Y, and the yarn splicing operation is completed. In addition, since the end portion of the entangled twine yarn Y is sucked by the suction mouth e3, cut and removed, and discarded during the yarn joining operation, it does not remain in the package 12.

As the above-mentioned entanglement device T, the single yarns Ya and Yb forming the twin yarn Y by generating a swirling airflow or a turbulent airflow.
Any structure may be used as long as they can be entangled with each other. As an example, the interlacing device T is provided with a longitudinally extending recess t1 into which the double yarn Y can be inserted, and an injection port (not shown) formed in the inner wall 2 forming the recess t1. It is configured to generate a swirling airflow, a turbulent airflow, or the like in the recess t1 by the compressed air ejected from the. Further, during the above-mentioned yarn splicing operation, the suction yarn e3 sucking and holding the double yarn Y on the package 12 side is rotated upward, so that the double yarn Y sucked and held by the suction mouth e3 is entangled. Device T
The concave part t1 is automatically inserted into the concave part t1 of
The suction mouth e3 is open on the side where it rotates.

In the above-described embodiment, an example in which the confounding device T is arranged on the downstream side of the cutter C is shown.
Install the confounding device T on the upstream side of the cutter C, for example, in FIG.
As shown by the chain double-dashed line, it may be arranged between the compounding yarn guide 8 and the yarn feeding member 9. Also in this case, in the same manner as described above, when the single yarn Ya, Yb has a defective portion such as a thick portion or a thin portion such as a slab, this defective portion is detected by the yarn clearer 11.
The yarn defect portion detection signal from the yarn clearer 11 is sent to the control device M1, and compressed air is supplied to the entanglement device T based on the instruction signal from the control device M1 so that the entanglement device T
Will operate. Further, in this embodiment, since the interlacing device T is disposed on the upstream side of the cutter C, the cutter C is operated and interlaced after a predetermined time has elapsed since the operation of the interlacing device T was started. Single yarn Y
After passing through the cutter C, at least part of a and Yb will cut the double yarn Y.

Next, another embodiment of the present invention will be described with reference to FIGS. In this embodiment, the auxiliary nozzle 33 formed in the hollow guide shaft body 28 is used to entangle the single yarns Ya and Yb without disposing the above-mentioned entanglement device T.

The pipe 3 connected to the internal air passage 30 of the hollow guide shaft 28 which constitutes the hollow guide shaft S.
Reference numeral 6 is connected to a compressed air supply source A2 that supplies compressed air into the internal air passage 30, and a switching valve V2 is connected to the pipe 36. M2 is a control device similar to the control device M1 in the above-described embodiment, and the yarn defect portion detection signal of the yarn clearer 11 is input to this control device M2.

When the single yarns Ya and Yb have a defective portion such as a thick portion or a thin portion such as a slab, this defective portion is detected by the yarn clearer 11 as in the above-described embodiment. The yarn defect portion detection signal from 11 is sent to the control device M2. On the basis of an instruction signal from the control device M2, the normally closed switching valve V2 is opened, and compressed air is supplied from the compressed air supply source A2 into the internal air passage 30 of the hollow guide shaft body 28 for auxiliary operation. Compressed air is ejected from the nozzle 33 to form a swirling airflow in the yarn passage 32 formed in the hollow guide shaft body 28. Two sets of yarns are generated by the swirling airflow in the yarn passage 32 of the hollow guide shaft 28 due to the jetting of compressed air from the auxiliary nozzle 33 and the swirling airflow due to the jetting of compressed air from the air jet nozzle 21 formed in the nozzle block 19. The single yarns Ya and Yb discharged from the production unit U are ballooned, and this ballooning is propagated to the downstream side, so that the single yarn Y
The a and Yb will be entangled when they are combined.
The auxiliary nozzle 33 is instructed by the control device M2.
At least a part of the single yarns Ya and Yb in the entangled state has passed through the cutter C by operating the cutter C in accordance with an instruction from the control device M2 after a minute delay from the timing at which the compressed air is jetted from After that, the twin yarn Y is cut. With this configuration, the single yarn Ya,
The twin yarn Y in a state where the Yb's are entangled with each other is wound around the package 12. Since the subsequent yarn splicing work is the same as that of the above-mentioned embodiment, its explanation is omitted.

As described above, the single yarn Y in the entangled state
After a part of at least a and Yb has passed through the cutter C, the cutter C is operated to entangle a plurality of single yarns Y.
Since a and Yb are cut, since the single yarn Ya and Yb are entangled with each other over a predetermined length, the end portion of the double yarn Y wound in the package 12 is surely, The two single yarns Ya and Yb forming the twin yarn Y can be suction-held by the suction mouth e3, and thus the success rate of yarn splicing is improved.

Since the entanglement device T and the cutter C are made to operate based on the detection result of the yarn clearer 11 as the yarn defect portion detecting means arranged in the ordinary spinning device, the entanglement device T and the cutter C are operated. It is not necessary to dispose a special device for activating the yarns, and when the yarn splicing request of the spinning unit is made, the single yarns Ya, Y can be made with more reliable timing.
b can be entangled.

Since the entanglement device T is disposed on the downstream side of the cutter C, the cutter C can entangle the single yarns Ya and Yb on the package 12 side after cutting more reliably.

Since the entanglement means is the auxiliary nozzle 33 formed in the hollow guide shaft body 28 constituting the yarn generating unit U, it is not necessary to dispose the entanglement device T which is separate from the hollow guide shaft body 28. Therefore, it is possible to prevent the spinning device from becoming complicated and large, and the manufacturing cost from increasing.

[0048]

Since the present invention has the constitution described above, it has the following effects.

A spinning member having a plurality of yarn producing units for producing a yarn utilizing a swirling air flow, an entanglement means for intertwining a plurality of single yarns produced by the yarn producing unit, and a plurality of entangled yarns. Since the cutting means for cutting the single yarn is provided, the end portion of the combined yarn wound in the package can be in a state in which the single yarns are entangled with each other over a predetermined length. Since the plurality of single yarns constituting the yarn can be reliably suction-held by the drawing device, the success rate of yarn splicing is improved.

Since the interlacing means and the cutting means are operated based on the detection result of the yarn defect portion by the yarn defect portion detecting means, it is necessary to provide a special device for operating the interlacing means and the cutting means. Therefore, when a yarn splicing request is made, a plurality of single yarns can be entangled at a more reliable timing.

Since the entanglement means is arranged on the downstream side of the cutting means, the cutting means can surely cut the composite yarn made of the single yarn, and the single yarn on the package side after cutting can be surely cut. , Can be entangled more reliably.

Since the entanglement means is the auxiliary nozzle formed in the hollow guide shaft body which constitutes the yarn generating unit, it is not necessary to dispose an entanglement device separate from the hollow guide shaft body. It is possible to suppress complication, increase in size, increase in manufacturing cost, and the like.

In the yarn joining method in the spinning device, after the entanglement means is operated based on the detection result of the yarn defect portion by the yarn defect portion detection means, at least a part of the entangled single yarn passes through the cutting means. After that, the cutting means is actuated to cut the plurality of entangled single yarns, so that the plurality of single yarns forming the combined yarn can be reliably suction-held by the pulling-out device. , The success rate of yarn splicing is improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a spinning unit that constitutes a spinning device of the present invention.

FIG. 2 is a side sectional view of a hollow guide shaft body used in the spinning device of the present invention.

FIG. 3 is an operation block diagram of the spinning device of the present invention.

FIG. 4 is an operation block diagram of another embodiment of the spinning device of the present invention.

FIG. 5 is a schematic side view of the spinning device of the present invention and a traveling carriage traveling along the spinning device.

[Explanation of symbols]

C ... Cutter D ... Draft device N ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Spinning nozzle S ..... Hollow guide shaft body T ... Y: Soito Ya, Yb ... Single yarn 1a, 1b ... Fiber bundle 28 ... Hollow guide shaft 33 --- Auxiliary nozzle

Claims (5)

[Claims] 1. A spinning member comprising a hollow guide shaft body in which a yarn passage is formed, and a plurality of yarn generation units for generating a yarn by utilizing a swirling airflow acting on a tip end portion of the hollow guide shaft body. A spinning unit, a entanglement means for intertwining a plurality of single yarns generated by the yarn generating unit in response to a yarn splicing request of the spinning unit, and a cutting means for cutting the plurality of entangled single yarns. A spinning device, comprising: a yarn splicing device; and a pulling device that pulls out the yarn ends of a plurality of entangled and cut single yarns and introduces the yarn ends into the yarn splicing device. 2. A yarn defect portion is detected and a yarn defect portion detecting means, an interlacing means and a cutting means for making a yarn splicing request are operated based on a result of the yarn defect portion detecting means detecting the yarn defect portion. The spinning device according to claim 1, further comprising: 3. The entanglement means is arranged on the downstream side of the cutting means.
The spinning device described in 1. 4. An entanglement means is formed in a hollow guide shaft body which constitutes a yarn generating unit, and a swirling air flow is applied to the supplied fiber bundle to form an opening formed in a tip end of the hollow guide shaft body. The spinning device according to claim 1, wherein the spinning device is an auxiliary nozzle for generating a suction force toward the yarn discharge port. 5. A spinning member comprising a hollow guide shaft body in which a yarn passage is formed, and a plurality of yarn generating units for generating a yarn by utilizing a swirling air flow acting on a tip end portion of the hollow guide shaft body. Is a yarn splicing method in a spinning device in which a plurality of single yarns are generated and are aligned and combined to form a single yarn, and the yarn is detected by a yarn defect portion detecting unit for detecting a yarn defect portion and making a yarn splicing request. After activating the entanglement means based on the detection result of the defective portion, at least a part of the entangled single yarns passes through the cutting means, and then activates the cutting means to separate the entangled single yarns. A yarn joining method in a spinning device, characterized in that the yarn ends of a plurality of entangled single yarns that have been cut are pulled out, introduced into a yarn joining device, and yarn joining is performed.