JPS6032733B2 - Air injection loom auxiliary nozzle - Google Patents
Air injection loom auxiliary nozzleInfo
- Publication number
- JPS6032733B2 JPS6032733B2 JP55123916A JP12391680A JPS6032733B2 JP S6032733 B2 JPS6032733 B2 JP S6032733B2 JP 55123916 A JP55123916 A JP 55123916A JP 12391680 A JP12391680 A JP 12391680A JP S6032733 B2 JPS6032733 B2 JP S6032733B2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- pipe
- auxiliary nozzle
- nozzle hole
- tip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
- D03D47/3006—Construction of the nozzles
- D03D47/302—Auxiliary nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
【発明の詳細な説明】
本発明は噴射空気の噴射方向を安定化した、空気噴射式
織機の補助ノズルに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an auxiliary nozzle for an air-injection type loom, which stabilizes the direction of injected air.
補助ノズルの設定に当っては、穫入れに備えて、補助ノ
ズルが経糸をかき分けて経糸閉口内に進入することから
、従来第１〜３図に示すように、ノズル孔１をパイプ２
に設け、パイプ２の先端部には先端チップ３をロー付け
あるいは圧入等で固着している。When setting the auxiliary nozzle, in preparation for harvesting, the auxiliary nozzle passes through the warp threads and enters the warp closure opening.
A tip 3 is fixed to the tip of the pipe 2 by brazing or press fitting.
パイプ２の外径寸法は経糸列内に進入する際に総糸に対
して無理のかからぬ大きさ（通常め３側程度）であり、
また、内蓬寸法は、噴射空気の圧力損失をできるだけ少
なく押えるために、最大限の大きさにすることが好まし
いが、補助ノズルの強度も考慮せねばならず、通常め２
帆（肉厚０．５肌）程度のものが採用されていた。この
ようなパイプ２にノズル孔１（通常■０．５肋〜ＣＩ．
５柳程度）を設けるのである。そしてこのような補助ノ
ズルを総糸飛走径路（杵道）の側方に１個あるいは複数
個配してその噴射方向線Ｎｏを所定の点に指向させて設
け、これに４気圧程度の圧力空気を毎分数百回の割合で
間欠的に供給することによりその都度ノズル孔１からの
噴射空気により綾糸を搬送する。この場合、噴射方向線
Ｎｏの向きおよび噴射空気の拡散角、すなわち、噴射空
気の所定点への指向性が緯糸搬送能に大きな影響を与え
るのである。しかして、前記の指向性の良否はノズル孔
１のノズル長１とノズル孔怪ｄとの比（１／ｄ）によっ
て決定されるほか、そのバラツキはノズル孔１の穿孔精
度に左右されるもので、織機の補助ノズルの場合、すな
わち前述したような短周期の間欠気流を急激に方向変換
させることで過渡的に流線の乱れが生じるような場合に
噴射空気に対し良好な指向性を与えるためには前記１／
ｄを１．９塁度かそれ以上に設定することが望ましい。The outer diameter of the pipe 2 is such that it does not force strain on the total threads when entering the warp row (usually about the third side).
In addition, it is preferable to make the inner nozzle size as large as possible in order to suppress the pressure loss of the injected air as much as possible, but the strength of the auxiliary nozzle must also be taken into account.
Something about the size of a sail (0.5 skin thick) was used. Such a pipe 2 has a nozzle hole 1 (usually ■0.5 ribs ~ CI.
5 willows). Then, one or more such auxiliary nozzles are arranged on the side of the overall yarn flying path (punch path), and the jetting direction line No. is directed to a predetermined point. By intermittently supplying air at a rate of several hundred times per minute, the twill yarn is conveyed by the air jetted from the nozzle hole 1 each time. In this case, the orientation of the jetting direction line No and the diffusion angle of the jetted air, that is, the directivity of the jetted air toward a predetermined point, have a great influence on the weft conveyance performance. Therefore, the quality of the directivity is determined by the ratio (1/d) between the nozzle length 1 of the nozzle hole 1 and the nozzle hole diameter d, and the variation thereof also depends on the drilling accuracy of the nozzle hole 1. In the case of an auxiliary nozzle of a loom, in other words, when the short-period intermittent airflow as described above suddenly changes direction, transient disturbances in the streamlines occur, it provides good directivity to the jetted air. In order to do the above 1/
It is desirable to set d to 1.9 degrees or more.
しかるに従来の補助ノズルではノズル孔１をパイプ２に
穿設することからそのノズル長１はパイプの肉厚によっ
て制限され、かつまた薄い管壁への穿孔精度の確保も困
難なところから指向性良好な、かつ、再現性に富む補助
ノズルが得難い事情にあったのである。本発明は前述の
事情に鑑がみてなされたもので、補助ノズルにおける噴
射空気の指向性を向上させるとともにそのバラッキを減
少させることを目的としてノズル孔の開設部分に肉付け
をしてそのノズル長を増大すると共にこれにより必然的
に穿孔精度を確保しうるようにしたものである。However, with conventional auxiliary nozzles, the nozzle hole 1 is bored in the pipe 2, so the nozzle length 1 is limited by the wall thickness of the pipe, and it is also difficult to ensure the precision of drilling into thin pipe walls, so it is difficult to achieve good directivity. However, it was difficult to obtain an auxiliary nozzle with high reproducibility. The present invention has been made in view of the above-mentioned circumstances, and has the purpose of improving the directivity of the jet air in the auxiliary nozzle and reducing its dispersion by adding flesh to the open part of the nozzle hole and reducing the nozzle length. As the number of holes increases, the drilling accuracy is inevitably ensured.
以下本発明の実施例を図面と共に説明するが、従釆装置
と同一機能を発揮するものについて同一符号を付す。第
４，５，６図により本発明の第１の実施例を説明する。Embodiments of the present invention will be described below with reference to the drawings, and the same reference numerals will be used to denote components that perform the same functions as the follower device. A first embodiment of the present invention will be explained with reference to FIGS. 4, 5, and 6.
２は圧力空気源から圧力空気を受けている補助ノズルの
パイプで、その先端に先端チップ５を固着している。Reference numeral 2 denotes an auxiliary nozzle pipe which receives pressurized air from a pressurized air source, and has a tip 5 fixed to its tip.
先端チップ５は先端を砲弾型にし、基部６をパイプ２に
鼓合できる太さとし、基部６をパイプ２の先端に競合し
、必要に応じてロー付け等の手段により固着している。
基部６には断面が略半月状をなした半月状部７が切欠形
成されており、パイプ２と前記半月状部７を貫通してノ
ズル孔１が設けられている。前記功欠部分は、パイプ２
の内側空隙を経て供給される圧力空気の流路８を形成し
、この断面積はノズル孔１の断面積と等しいかそれより
大きくなるように設定されている。この場合において、
ノズル孔１の直状部４はパイプ２の厚さに半月状部７の
厚さを加えた長さとなりそのノズル長Ｌを長く取れるの
で、噴射空気の指向性が向上する。The tip 5 has a bullet-shaped tip, a base 6 of a thickness that can fit against the pipe 2, the base 6 competes with the tip of the pipe 2, and is fixed by brazing or other means as necessary.
A semicircular portion 7 having a substantially semicircular cross section is cut out in the base portion 6, and a nozzle hole 1 is provided passing through the pipe 2 and the semicircular portion 7. The above-mentioned success/deficiency part is pipe 2
A flow path 8 for pressurized air is formed through the inner gap of the nozzle hole 1, and the cross-sectional area of the flow path 8 is set to be equal to or larger than the cross-sectional area of the nozzle hole 1. In this case,
The length of the straight part 4 of the nozzle hole 1 is the sum of the thickness of the pipe 2 and the thickness of the half-moon part 7, and the nozzle length L can be made long, so that the directivity of the jetted air is improved.
次に第７，８，９図により第２の実施例を説明するが、
第１の実施例と同一の部分の説明は省略する。先端チッ
プ９の基部６は圧力空気の流路８となる穴１０があいて
おり、その穴１０に運通して、パイプ２と先端チップ９
の基部６を貫通して直状部４の長さＬのノズル孔１が設
けてある。Next, the second embodiment will be explained with reference to FIGS. 7, 8, and 9.
Description of the same parts as in the first embodiment will be omitted. The base 6 of the distal tip 9 has a hole 10 that serves as a flow path 8 for pressurized air, and air is communicated through the hole 10 to connect the pipe 2 and the distal tip 9.
A nozzle hole 1 having a length L of the straight portion 4 is provided through the base 6 of the straight portion 4 .
この穴１０の断面積は少なくともノズル孔１の断面積と
等しいか、それよりも大きく設定する。また、第１０，
１１，１２図は第３の実施例を示すものである。The cross-sectional area of the hole 10 is set to be at least equal to or larger than the cross-sectional area of the nozzle hole 1. Also, the 10th,
Figures 11 and 12 show a third embodiment.
先端チップ１１には圧力空気の流路８となる穴１２が基
部６から頭部１３にかけて穿設され、頭部１３には穴１
２に続く直状部４の長さＬのノズル孔１や設けられてい
る。The distal tip 11 has a hole 12 formed from the base 6 to the head 13, which becomes the flow path 8 for pressurized air.
A nozzle hole 1 having a length L of a straight portion 4 following the nozzle hole 2 is provided.
穴１２は噴射口の直状部長さをできるだけ長くとるため
先端チップ１ １に偏心して設けると共に、その断面積
は少なくとも噴射口１の断面積と等しいか、それよりも
大さ〈設定する。この実施例の補助ノズルは先端チップ
１１の頭部１３にノズル孔１が穿設されているので、パ
イプ２の先端に先端チップ１１を固着するだけで補助ノ
ズルを構成することができ、先の第１、第２の実施例の
如く、パイプ２にノズル孔１を穿孔する必要がなく、製
作上有利である。The hole 12 is provided eccentrically on the tip 11 in order to make the straight length of the injection port as long as possible, and its cross-sectional area is set to be at least equal to or larger than the cross-sectional area of the injection port 1. Since the auxiliary nozzle of this embodiment has the nozzle hole 1 bored in the head 13 of the tip 11, the auxiliary nozzle can be configured simply by fixing the tip 11 to the tip of the pipe 2. Unlike the first and second embodiments, it is not necessary to drill the nozzle hole 1 in the pipe 2, which is advantageous in manufacturing.
前記各実施例においては、円形パイプを用いてノズル孔
も円形としたが、異形パイプ（だ円、四角形等）を用い
ても良く、ノズル孔の形状もだ円や矩形等でも良く、ノ
ズル孔の数も１個とは限らない。以上説明したように、
本発明によれば、ノズル孔のノズル長がパイプの厚みに
相当する従来のものに比べて、先端チップに穿孔した部
分の長さに相当する分だけ長く取れるので、噴射空気の
指向性が向上し、かつノズル孔を肉厚部分に穿孔するこ
とからその加工精度を容易に高め得てバラツキの少ない
補助ノズルを提供することができるので、織機の縞入性
能を高めることができ、ひいては圧力空気を減少し得て
織機のランニングコストを低減させることができるので
ある。In each of the above embodiments, a circular pipe was used and the nozzle hole was also circular. However, an irregularly shaped pipe (elliptical, square, etc.) may be used, and the shape of the nozzle hole may also be oval, rectangular, etc. The number of is not limited to one. As explained above,
According to the present invention, the nozzle length of the nozzle hole can be made longer by the length of the hole drilled in the tip compared to the conventional nozzle hole, which corresponds to the thickness of the pipe, so the directivity of the injected air is improved. In addition, since the nozzle hole is drilled in a thick wall part, the machining accuracy can be easily improved and an auxiliary nozzle with less variation can be provided, so the striping performance of the loom can be improved, and the pressurized air Therefore, the running cost of the loom can be reduced.
第１図乃至第３図は従来例を示すもので、第１図は正面
図、第２図は第１図の０−ロ線における断面図、第３図
は第１図ｍ−ｍ線における断面図、第４図乃至第６図は
第１の実施例を示すもので、第４図は正面図、第５図は
第４図Ｖ−Ｖ線における断面図、第６図は第４図の一の
線における断面図、第７図乃至第９図は、第２の実施例
を示すもので、第７図は正面図、第８図は第７図側一肌
線における断面図、第９図は第７図におけるＫ−Ｘ線に
おける断面図、第１０図乃至第１２図は第３の実施例を
示すもので、第１０図は正面図、第１１図は第１０図Ｍ
−Ｘ線における断面図、第１２図は第１０図狐一柳線に
おける断面図である。
１……ノズル孔、２……パイプ、３，５，９，１１……
先端チップ、４…・・・直状部、８…・・・流路。
党ー図
兼２図
兼３図
兼４図
兼５図
発６図
兼７図
兼８図
精９図
＊１０図
兼‘ー図
兼ー２図Figures 1 to 3 show a conventional example, where Figure 1 is a front view, Figure 2 is a sectional view taken along line 0-Ro in Figure 1, and Figure 3 is a cross-sectional view taken along line m-m in Figure 1. 4 to 6 show the first embodiment, FIG. 4 is a front view, FIG. 5 is a sectional view taken along the line V-V in FIG. 4, and FIG. 7 to 9 show the second embodiment. FIG. 7 is a front view, and FIG. 8 is a sectional view taken along a skin line on the side of FIG. 9 is a sectional view taken along the line K-X in FIG. 7, FIGS. 10 to 12 show the third embodiment, FIG. 10 is a front view, and FIG. 11 is a sectional view taken along line K-X in FIG.
12 is a sectional view along the Kitsune-Ichiyanagi line in FIG. 10. 1... Nozzle hole, 2... Pipe, 3, 5, 9, 11...
Tip tip, 4... Straight portion, 8... Channel. Part-Figure 2 figures 3 figures 4 figures 5 figures 6 figures 7 figures 8 figures 9 figures*10 figures 2 figures
Claims (1)
り、緯糸を搬送して緯入れを行うようにした空気噴射式
織機の緯入れ装置において、補助ノズルの少くとも先端
部に一側がわに寄せて流路を形成するとともにこの流路
から他側がわに向うノズル孔を穿設したことを特徴とす
る空気噴射式織機の補助ノズル。1. In the weft inserting device of an air-injection loom, in which the weft is inserted by conveying the weft by the air ejected from an auxiliary nozzle placed on the side of the shed, at least one side is attached to the tip of the auxiliary nozzle. 1. An auxiliary nozzle for an air-injection type loom, characterized in that a flow path is formed toward one side, and a nozzle hole is bored from this flow path toward the other side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55123916A JPS6032733B2 (en) | 1980-09-06 | 1980-09-06 | Air injection loom auxiliary nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55123916A JPS6032733B2 (en) | 1980-09-06 | 1980-09-06 | Air injection loom auxiliary nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5747950A JPS5747950A (en) | 1982-03-19 |
| JPS6032733B2 true JPS6032733B2 (en) | 1985-07-30 |
Family
ID=14872513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55123916A Expired JPS6032733B2 (en) | 1980-09-06 | 1980-09-06 | Air injection loom auxiliary nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032733B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020063546A (en) * | 2018-10-16 | 2020-04-23 | 津田駒工業株式会社 | Sub-nozzle of air jet loom |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0684576B2 (en) * | 1984-02-17 | 1994-10-26 | 株式会社豊田自動織機製作所 | Auxiliary nozzle device for fluid jet loom |
| JPH0318525Y2 (en) * | 1985-03-27 | 1991-04-18 | ||
| WO1994011553A1 (en) * | 1992-11-06 | 1994-05-26 | Nippon Tungsten Co., Ltd. | Auxiliary nozzle for air injection type looms |
| JP2001295159A (en) * | 2000-04-04 | 2001-10-26 | Tsudakoma Corp | Subnozzle for weft insertion |
-
1980
- 1980-09-06 JP JP55123916A patent/JPS6032733B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020063546A (en) * | 2018-10-16 | 2020-04-23 | 津田駒工業株式会社 | Sub-nozzle of air jet loom |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5747950A (en) | 1982-03-19 |
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