JPH069029Y2 - rectifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a straightening plate for straightening an air flow in the vicinity of an air nozzle in an air spinning device, and in particular, a pair of air nozzles arranged in parallel is used for spinning. The present invention relates to a straightening vane in a twin spinner that forms and combines yarns.

[Prior Art] The sliver is continuously supplied to a drafting device including a back roller, a middle roller, a front roller, etc., and after drafting at a set ratio, it is supplied to an air nozzle that has generated a swirling air flow, and the swirling air flow acts. A pneumatic spinning device for obtaining spun yarn is known. FIG. 4 shows the details of the draft device and the air nozzle portion of the pneumatic spinning device proposed in Japanese Utility Model Publication No. 59-32606. The sliver S is a middle roller 11 and a front roller 1 of the draft device 10.
2 is drafted while passing through the swirling passage 14a on the upstream side of the air nozzle 13 and is passed through the swirling passage 14b on the downstream side and twisted by the swirling flow of air in the passages 14a, 14b, and then packaged. It is designed to be wound up.

The air nozzle 13 has a swirl passage 14 on the upstream side and the downstream side.
The air ejection notch 15 from which air of a and 14b is ejected is formed, and the air jetted from the notch 15 is dust box 1
The suction pipe 17 provided at 6 is sucked.

By the way, the air sucked into the suction pipe 17 is
As described above, the air ejected from the air ejection notch 15 of the air nozzle 13 and the upstream tip 13 of the air nozzle 13
There is air sucked from between a and the front roller 12, and the cotton dust is sucked and removed together with the air, but since the air flow from the air jetting notch 15 is strong, in the above-mentioned proposal, In order to prevent the blown air from flowing to the tip 13a of the air nozzle 13 and the blown air from easily clogging the tip 13a of the air nozzle 13,
A rectifying plate 18 having a partition portion 18a for partitioning the air jetting notch 15 and the tip 13a of the air nozzle 13 is provided.
By making the air flow sucked into the suction pipe 17 independent of each other, clogging of the nozzle by the cotton wool, sliver,
Prevents yarn breakage of spun yarn. Reference numeral 19 is a nozzle holder.

[Problems to be Solved by the Invention] Recently, a twin spinner has been proposed in which a pair of air nozzles are provided in parallel to spin two yarns and combine them. In this case, it is necessary to prevent the air flows from the air nozzles from interfering with each other.

The present invention has been made in consideration of the above circumstances, and when two drafted slivers are twin-spun and twisted into spun yarns, the air flows of the air nozzles do not interfere with each other. An object of the present invention is to provide a current plate that can be prevented.

[Means for Solving the Problems] In order to achieve the above object, the present invention has swirl passages before and after twisting a sliver drafted from upstream to downstream with a swirling air flow, and for air injection therebetween. In a twin spinner straightening plate in which a pair of air nozzles with cutouts are provided in parallel, a front and rear partition that separates the upstream end of both air nozzles and both sides of the air injection cutout, and the air injection cutouts It is provided with an intermediate partition part for partitioning the space.

[Operation] According to the above configuration, the swirling air flows injected from the air injection notches of the air nozzles do not interfere with each other by the intermediate partition portion, and the front and rear partition portions allow the air nozzles to generate air. Can be prevented from flowing to the upstream end.

[Embodiment] A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

First, the overall structure of the twin spinner according to the present invention will be described with reference to FIG.

In the figure, the two slivers Sa and Sb are guided by the guide rollers 20 and are drafted at a set ratio while passing through the back rollers 22, the middle rollers 11 and the front rollers 12 of the draft device 10 from the guide cylinders 21a and 21b. Then, the twin nozzles 24 composed of a pair of air nozzles 23a and 23b twist the yarns by the swirling flow of air, and then the yarns are twisted by the yarn twisting portion 25, and then downward from between the delivery roller 26 and the nip roller 27. After being bent and the yarn abnormality is detected by the slab catcher 28, it is wound into a package (not shown).

Next, the relationship between the twin nozzle portion 24 and the current plate 30 in the present invention will be described with reference to FIGS. 1 and 2.

In FIG. 1, the pair of air nozzles 23a and 23b are
The nozzle 23 has a shape in which elongated rectangular parallelepiped portions 31a and 31b and quadrangular pyramid portions 32a and 32b are formed at the tips thereof.
As described above, the quadrangular pyramidal parts 32a, 32b on the upstream side of the a, 23b to the rectangular parallelepiped parts 31a, 31b on the downstream side are separated from the upstream swirling passages 34a, 34b by the air injection notches 33a, 33b. Side passages 35a and 35b are formed. The upstream and downstream swirl passages 34a, 34
Compressed air supply pipes 36a, 36b, 37a, 37b are connected to supply compressed air to b, 35a, 35b. Compressed air from one of the compressed air supply pipes 36a and 36b is supplied to the nozzle 2
The air injection notch 33a passes through the passages (not shown) in 3a, 23b, flows in the tangential direction from the upstream ends of the upstream swirl passages 34a, 34b, and swirls the swirl passages 34a, 34b downstream. , 33b, and compressed air from the other compressed air supply pipes 37a, 37b flows tangentially from the downstream ends of the downstream swirl passages 35a, 35b and swirls the swirl passages 35a, 35b upstream. While
It is designed to eject into the air injection notches 33a, 33b, and the swirl passages 34a, 34b on the upstream side and the downstream side,
The drafted sliver passing through 35a and 35b is twisted.

As shown in FIG. 3, the air nozzles 23a and 23b are screwed in parallel to the support bars 41 provided on the support frame 40 of the draft device 10, respectively.
A guide frame 42 is provided at the discharge portion of the spun yarn Y on the downstream side of the a and 23b, and a notch 33 for air injection is provided below.
A suction pipe (not shown) is provided for discharging the air blown out from a and 33b and the cotton fly accompanied with the air.

Now, in FIG. 1 and FIG. 2, the air nozzles 23a, 2
A current plate 30 is attached to 3b. This rectifying plate 3
In No. 0, a notch groove 43 that fits with both side surfaces of the rectangular parallelepiped portions 31a, 31b on the upstream side of the air injection notches 33a, 33b is formed, and the air injection notches 33a, 33b and the upstream side quadrangular pyramid. A straightening plate main body 45 made of plastic in which a front and rear partitioning portion 44 for partitioning between the portions 32a and 32b is formed, and fitted in a mounting hole 46 of the main body 45 and extending to the center of the cutout groove 43, the air nozzles 23a, 23b. It is composed of a rubber intermediate partition portion 47 that is closely fitted between the air injection notches 33a and 33b to partition the air injection notches 33a and 33b. Further, a recessed groove 48 is formed in the cutout groove 43 on the downstream side of the front-rear partition portion 44 of the current plate body 45.
It is located at b and guides the blown air and the accompanying fly dust to a suction pipe (not shown) below.

Further, the air nozzles 23a, 23 on the downstream side of the straightening plate 30
Between b, both air nozzles 23a and 23a are fitted so as to support the partition plate 49 for partitioning the two and the partition part 49.
A downstream partition member 51 including an attachment portion 50 attached to b is provided.

Next, the operation of the above embodiment will be described.

The drafted sliver is attached to each air nozzle 23a, 23a.
After passing through the swirling passages 34a, 34b on the upstream side of b, the twisted yarn is passed through the swirling passages 35a, 35b on the downstream side, and the spun yarn is discharged. At this time, the swirling air directly flows downward from the air injection notches 33a and 33b and is discharged,
In addition, a part of the current is flown downward while being guided by the concave groove 48 of the current plate body 45 and discharged. On the other hand, air nozzles 23a, 23b
The fly dust generated at the tips of the upstream swirling passages 34a, 34b is also discharged together with the swirling air by the suction air flow of the suction pipe described above.

In this case, first, the front and rear partition portions 44 of the straightening vane 30 have the air injection notches 33a and 33b and the upstream swirling passages 34a and 3b.
In order to separate the tip of 4b from the air injection notch 33a,
The air jetted from 33b causes the upstream swirl passages 34a, 3
4b is prevented from flowing to the tip and both independent flows are maintained. Further, the air from the air jetting notches 33a and 33b of the air nozzles 23a and 23b are isolated from each other by the intermediate partitioning portion 48 which partitions the air jetting notches 33a and 33b from each other so that they do not interfere with each other.

[Effects of the Invention] As is clear from the above description, the present invention exhibits the following excellent effects.

(1) By providing front and rear partitioning sections that partition the upstream ends of both air nozzles and both sides of the air injection notch, it is possible to prevent the air injected from the air injection notch from flowing to the upstream end of the air nozzle, Can prevent clogging of the fly.

(2) Providing an intermediate partition that separates the two air jetting notches prevents the jetted air from interfering with each other and allows the air to be smoothly discharged and the fly dust to be prevented from scattering.

[Brief description of drawings]

1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a detailed perspective view of a current plate of the present invention, FIG. 3 is an overall perspective view of a twin spinner of the present invention, and FIG. 4 is a conventional example. It is sectional drawing shown. In the figure, 23a and 23b are air nozzles, 30 is a straightening plate, 3
3a, 33b are notches for air injection, 34a, 34b, 3
Reference numerals 5a and 35b are swirl passages, 44 is a front and rear partition, and 47 is an intermediate partition.

Claims (1)

[Scope of utility model registration request] 1. A twin spinner in which a pair of air nozzles having a swirl passage before and after twisting a sliver drafted from an upstream side to a downstream side with a swirling air flow and an air injection notch formed therebetween are provided in parallel. In the current plate, a front and rear partitioning part that partitions the upstream ends of both air nozzles and both side parts of the air injection notch, and an intermediate partitioning part that partitions the air injection notches. .