JPH0684576B2 - Auxiliary nozzle device for fluid jet loom - Google Patents
Auxiliary nozzle device for fluid jet loomInfo
- Publication number
- JPH0684576B2 JPH0684576B2 JP59027176A JP2717684A JPH0684576B2 JP H0684576 B2 JPH0684576 B2 JP H0684576B2 JP 59027176 A JP59027176 A JP 59027176A JP 2717684 A JP2717684 A JP 2717684A JP H0684576 B2 JPH0684576 B2 JP H0684576B2
- Authority
- JP
- Japan
- Prior art keywords
- auxiliary nozzle
- auxiliary
- main body
- inner tube
- nozzle
- 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 - Lifetime
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
-
- 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
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/277—Guide mechanisms
- D03D47/278—Guide mechanisms for pneumatic looms
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
本発明は、圧縮空気流を用いて緯入れを行う流体噴射式
織機の緯入れ装置に関し、特に緯入れを助ける補助空気
流を噴射する緯入れ装置を補助ノズル装置に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weft inserting device for a fluid jet loom that uses a compressed air flow for weft insertion, and more particularly to a weft inserting device that injects an auxiliary air flow for assisting weft insertion.
【従来の技術】 この種の公知の緯入れ装置においては、例えば第１図及
び第２図に示すように、スレー１の長手方向に形成した
溝２内には多数のガイド片３、３′及び補助ノズル４を
備えたブロック５と筬６の基部とが装着され、テーパブ
ロック７をボルト８で締め付けて一体化してある。ガイ
ド片３は緯糸脱出用隙間９を残したほぼ閉鎖状の通路10
を形成し、またガイド片３′は所定の間隔毎にガイド片
３に並べて配置されるとともに筬６側を大きく開口した
通路10を形成し、これに対応して補助ノズル４が垂立さ
れている。補助ノズル４への補助流体の供給はスレー１
の下部に装着された補助流体供給パイプ11により行われ
る。 ガイド片３′に対応して垂設された前記補助ノズル４に
は、第２図に示すように例えば２個の緯入れ用補助流体
噴射孔12、13が穿設され、補助流体が緯入れ方向Ｘ（第
３図）に関して角度αで噴射される。この補助流体は、
図示しない主ノズルからの噴流による緯入れ方向Ｘへの
緯糸の飛走を助成するためのものであるから、その角度
αを所定範囲内に確実におさめるよう噴流の指向性を向
上させることが、緯入れミスの減少等のために重要であ
る。2. Description of the Related Art In a known weft inserting device of this type, as shown in FIGS. 1 and 2, for example, a large number of guide pieces 3, 3'are provided in a groove 2 formed in a longitudinal direction of a sley 1. Further, the block 5 having the auxiliary nozzle 4 and the base of the reed 6 are mounted, and the taper block 7 is tightened with the bolt 8 to be integrated. The guide piece 3 is a substantially closed passage 10 leaving a gap 9 for weft escape.
The guide pieces 3'are arranged side by side on the guide pieces 3 at a predetermined interval and form a passage 10 having a large opening on the side of the reed 6, and the auxiliary nozzle 4 is erected correspondingly. There is. The auxiliary fluid is supplied to the auxiliary nozzle 4 by the sley 1
Is performed by the auxiliary fluid supply pipe 11 attached to the lower part of the. As shown in FIG. 2, for example, two auxiliary fluid injection holes 12 and 13 for weft insertion are formed in the auxiliary nozzle 4 which is vertically provided corresponding to the guide piece 3 ', and the auxiliary fluid is inserted into the auxiliary nozzle 4. It is injected at an angle α with respect to direction X (Fig. 3). This auxiliary fluid is
Since it is intended to promote the flight of the weft yarn in the weft inserting direction X by the jet flow from the main nozzle (not shown), it is possible to improve the directivity of the jet flow so that the angle α is surely kept within a predetermined range. This is important for reducing weft insertion errors.
ところが、従来の補助ノズル４は、適切な内外径及び形
状をしたパイプの先端を絞り加工又は圧延により潰し密
閉したものの側面に補助流体用の噴射孔をあけて制作さ
れていた。そのため、第４図にノズル先端を拡大断面図
で示すように、噴射孔の内縁にばり15が生じたり、ま
た、ノズル先端内のスペースに乱流16が生じたりするの
で、噴射孔からの噴流が拡散し易く、指向性をもたせに
くかった。従って、このような補助ノズルでは、その製
作が困難であるばかりか、緯入れ装置において所定の噴
流条件を確立することが難しかった。 従って、本発明の目的は、噴流の指向性が良好な補助ノ
ズル装置を提供することである。However, the conventional auxiliary nozzle 4 has been manufactured by squeezing or sealing the tip of a pipe having an appropriate inner and outer diameter and shape by squeezing or rolling and sealing it, and forming an injection hole for an auxiliary fluid on the side surface. Therefore, as shown in an enlarged cross-sectional view of the nozzle tip in FIG. 4, burrs 15 are generated at the inner edge of the injection hole, and turbulent flow 16 is generated in the space inside the nozzle tip. Was easy to diffuse, and it was difficult to have directivity. Therefore, such an auxiliary nozzle is difficult to manufacture, and it is difficult to establish a predetermined jet condition in the weft inserting device. Therefore, an object of the present invention is to provide an auxiliary nozzle device having a good jet directivity.
この目的から、本発明による補助ノズル装置は、経糸間
に侵入し易く先端部が細く形成された中実棒状の本体
と、該本体内で実質的に長手方向に貫通して延びる中空
内管とを一体的に形成し、該中空内管は連続する内壁面
を有するとともに、該中空内管の一端を前記本体の先端
部で外部に開口し、他端を補助流体供給部に連通したも
のである。To this end, the auxiliary nozzle device according to the present invention comprises a solid rod-shaped main body having a thin tip portion that easily penetrates between warp threads, and a hollow inner tube extending substantially longitudinally in the main body. And the hollow inner pipe has a continuous inner wall surface, one end of the hollow inner pipe is opened to the outside at the tip of the main body, and the other end communicates with the auxiliary fluid supply part. is there.
上述の構成を有する本発明によると、中空内管は、本体
内で実質的に長手方向に貫通して延びるように該本体と
一体的に形成されると共に、連続する内壁面を有するた
め、中空内管の流体通路中で流体の衝突箇所がなく、流
体は、本体の先端部の開口に至るまで、内管内で整流さ
れ安定した状態で滑らかに流れるので、噴流の指向性が
良好になる。According to the present invention having the above-described configuration, the hollow inner tube is integrally formed with the main body so as to extend substantially longitudinally therethrough, and has a continuous inner wall surface. There are no fluid collision points in the fluid passage of the inner pipe, and the fluid flows smoothly in a stable state in the inner pipe until it reaches the opening at the tip of the main body, so that the directivity of the jet flow is improved.
第５図は、本発明による補助ノズル20の一例を、その先
端部近傍を拡大して示す断面図であり、該補助ノズル20
は、先端部21aが徐々に細くなるよう形成された中実棒
状の本体21と、該本体21内にその長手方向に実質的に貫
通して配置され、所定の方向に空気を噴射するように先
端部21aで外部に開口する中空の内管22とを有する。内
管22はその内径ｄが図示のようにほぼ一様であり、また
希望する方向に流体を噴射しうるように、前記本体21の
先端部21a内における内管22の部分は、補助ノズル20の
軸心線20aに関して角度θをなしている。 内管22は、例えば0.5〜2.5mmの内径ｄを持つ適宜の材料
の中空パイプを選択し、同パイプの先端を角度θが例え
ば５〜20°になるように仕上げることによって、容易に
製作される。また、かかる内管22の周囲を樹脂等を適切
な成型材で取り巻き成型することによって、内管22を内
蔵した補助ノズルを容易に製作することができる。 このようにして製作された補助ノズル20の内管22には、
図示はしないが、第１図に関連して説明した補助流体供
給パイプ11（補助流体供給部）から補助流体が供給され
る。 なお、内管22の横断面外形状は円形に限らず、第６図
（イ）〜（ニ）に示すように楕円形、クローバ形、菱
形、半円形でもよく、縦断面形状は内径ｄが一様ではな
く、第７図（イ）及び（ロ）に示すように変形していて
もよい。更に、内管22の本数は１本に限らず、第８図
（イ）、（ロ）及び第９図（イ）、（ロ）に示すように
複数本にすることができる。複数本にした場合、各内管
を別々の補助流体供給パイプに接続すれば、流速及び圧
力の異なる空気を各内管から吹き出すことができ、緯糸
の制御が良好となり且つ空気消費量も最適となる。 要するに、内管は所定の流速の空気流を所定の方向に噴
射しうるものならよい。 また、内管22を囲む本体21については、内管22とは異な
る材料であって、下経糸群に無理なく、即ち織物欠点を
生じないように分け入ることができるものならよい。従
って、第５図のＡ−Ａ線における本体外形も、第10図
（イ）〜（ニ）に示すように様々にすることができ、ま
た先端部21aの形状も第11図（イ）〜（ニ）に示すよう
に様々にすることができる。FIG. 5 is an enlarged sectional view showing an example of the auxiliary nozzle 20 according to the present invention in the vicinity of its tip.
Is a solid rod-shaped main body 21 formed so that the tip portion 21a is gradually narrowed, and is disposed substantially penetrating in the main body 21 in the longitudinal direction thereof so as to inject air in a predetermined direction. It has a hollow inner tube 22 that opens to the outside at the tip 21a. The inner tube 22 has a substantially uniform inner diameter d as shown in the drawing, and the inner tube 22 in the tip portion 21a of the main body 21 has an auxiliary nozzle 20 so that the fluid can be ejected in a desired direction. Forms an angle θ with respect to the axis 20a. The inner pipe 22 is easily manufactured by selecting a hollow pipe made of an appropriate material having an inner diameter d of 0.5 to 2.5 mm and finishing the tip of the pipe so that the angle θ is, for example, 5 to 20 °. It In addition, by surrounding and molding a resin or the like around the inner tube 22 with an appropriate molding material, an auxiliary nozzle having the inner tube 22 built therein can be easily manufactured. In the inner tube 22 of the auxiliary nozzle 20 manufactured in this way,
Although not shown, the auxiliary fluid is supplied from the auxiliary fluid supply pipe 11 (auxiliary fluid supply section) described with reference to FIG. The outer cross-sectional outer shape of the inner tube 22 is not limited to a circular shape, and may be an elliptical shape, a clover shape, a rhombic shape, or a semi-circular shape as shown in FIGS. 6 (a) to (d). It may not be uniform and may be deformed as shown in FIGS. 7 (a) and 7 (b). Further, the number of the inner tubes 22 is not limited to one, but may be plural as shown in FIGS. 8 (a), (b) and FIGS. 9 (a), (b). In the case of multiple pipes, if each inner pipe is connected to a separate auxiliary fluid supply pipe, air with different flow rates and pressures can be blown out from each inner pipe, which results in good weft control and optimal air consumption. Become. In short, the inner tube is only required to be capable of injecting an air flow having a predetermined flow velocity in a predetermined direction. Further, the main body 21 surrounding the inner tube 22 may be made of a material different from that of the inner tube 22 and can be divided into the lower warp groups without difficulty, that is, without causing a fabric defect. Therefore, the outer shape of the main body along the line AA in FIG. 5 can be varied as shown in FIGS. 10 (a) to 10 (d), and the shape of the tip portion 21a can be changed from FIG. 11 (a) to FIG. It can be various as shown in (d).
以上のように、本発明による補助ノズル装置において
は、棒状本体内に中空の内管が設けられており、該内管
から空気流を噴射するので、次のような様々な効果が得
られる。 （１）乱流やばりの発生を心配する必要が全くなく、製
作が容易である。 （２）内管の断面形状はほぼ一様であり、変化していて
も連続的であるため、内管内で空気流が整流され安定し
た状態で流れるので、噴流の指向性が良好になる。その
ため、効率的な流体噴射が行われて緯入れの安定性が向
上するとともに流体消費量も抑制できる。 （３）内管の断面形状及び先端部の傾斜角を変えること
で、空気流のパターン及び方向が任意の噴流が得られる
ので、補助ノズルをスレーに組み付ける際の微妙で面倒
な調整作業が不必要となる。 （４）本体、従って補助ノズルを任意の外形状に仕上げ
ることができるので、補助ノズルによる経糸への悪影響
を最小限に抑えることができる。 （５）内管が複数本のものにおいては、噴流による緯糸
の制御が良好となり、また空気消費量も最適にすること
ができる。As described above, in the auxiliary nozzle device according to the present invention, since the hollow inner tube is provided in the rod-shaped body and the air flow is jetted from the inner tube, the following various effects can be obtained. (1) There is no need to worry about the occurrence of turbulence and flash, and the manufacturing is easy. (2) Since the cross-sectional shape of the inner pipe is substantially uniform and continuous even if it changes, the airflow is rectified and flows in a stable state in the inner pipe, so that the directivity of the jet flow is improved. Therefore, efficient fluid ejection is performed, stability of weft insertion is improved, and fluid consumption can be suppressed. (3) By changing the cross-sectional shape of the inner pipe and the inclination angle of the tip, a jet flow with an arbitrary air flow pattern and direction can be obtained, so there is no need for delicate and cumbersome adjustment work when assembling the auxiliary nozzle to the sley. Will be needed. (4) Since the main body, and thus the auxiliary nozzle, can be finished to have an arbitrary outer shape, the adverse effect of the auxiliary nozzle on the warp yarn can be minimized. (5) In the case of a plurality of inner tubes, the control of the weft by the jet flow is good, and the air consumption can be optimized.
第１図は従来の補助ノズルを備えた緯入れ装置の略側面
図、第２図は従来の補助ノズルと緯糸ガイド片との関係
を一部断面で示す側面図、第３図は第２図のIII-III線
断面図、第４図は従来の補助ノズル先端部の拡大断面
図、第５図は本発明による補助ノズルの先端部の拡大断
面図、第６図（イ）、（ロ）、（ハ）及び（ニ）は本発
明による補助ノズルにおける内管の横断面形状を示す
図、第７図（イ）及び（ロ）は本発明による補助ノズル
における内管の縦断面形状を示す図、第８図（イ）及び
（ロ）は内管本数が２本の本発明による補助ノズル先端
部の断面図及び側面図、第９図（イ）及び（ロ）は内管
本数が５本の場合の第８図（イ）及び（ロ）に相当する
図、第10図（イ）、（ロ）、（ハ）及び（ニ）は第５図
のＡ−Ａ線における補助ノズルの種々の外形状を示す
図、第11図（イ）、（ロ）、（ハ）及び（ニ）は本発明
による補助ノズルの種々の先端形状を示す側面図であ
る。 図中、11は補助流体供給ノズル（補助流体供給部）、20
は補助ノズル、21は本体、21aは本体の先端部、22は中
空の内管である。FIG. 1 is a schematic side view of a weft inserting device equipped with a conventional auxiliary nozzle, FIG. 2 is a side view showing a part of the relationship between a conventional auxiliary nozzle and a weft guide piece, and FIG. III-III line sectional view of FIG. 4, FIG. 4 is an enlarged sectional view of a conventional auxiliary nozzle tip portion, FIG. 5 is an enlarged sectional view of an auxiliary nozzle tip portion according to the present invention, FIG. 6 (a), (b) , (C) and (d) are views showing the cross-sectional shape of the inner pipe in the auxiliary nozzle according to the present invention, and FIGS. 7 (a) and (b) are the longitudinal cross-sectional shape of the inner pipe in the auxiliary nozzle according to the present invention. FIGS. 8 (a) and 8 (b) are cross-sectional views and side views of the tip portion of the auxiliary nozzle according to the present invention having two inner tubes, and FIGS. 9 (a) and 9 (b) show five inner tubes. Figures 8 (a) and (b) in the case of the book, and Figures 10 (a), (b), (c), and (d) are auxiliary lines along the line AA in Fig. 5. Various shows the external shape of the Le, FIG. 11 (a), (b) is a side view showing the (c) and (d) various tip shapes of the auxiliary nozzle according to the present invention. In the figure, 11 is an auxiliary fluid supply nozzle (auxiliary fluid supply section), 20
Is an auxiliary nozzle, 21 is a main body, 21a is a tip of the main body, and 22 is a hollow inner tube.
Claims (1)
た中実棒状の本体と、該本体内で実質的に長手方向に貫
通して延びる中空内管とを一体的に形成し、該中空内管
は連続する内壁面を有するとともに、該中空内管の一端
を前記本体の先端部で外部に開口し、他端を補助流体供
給部に連通した、流体噴射式織機における補助ノズル装
置。1. A solid rod-shaped main body having a thin tip portion that easily penetrates between warps and a hollow inner tube extending substantially through the main body in the longitudinal direction are integrally formed, The hollow inner tube has a continuous inner wall surface, one end of the hollow inner tube is opened to the outside at the tip portion of the main body, and the other end is in communication with an auxiliary fluid supply section. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59027176A JPH0684576B2 (en) | 1984-02-17 | 1984-02-17 | Auxiliary nozzle device for fluid jet loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59027176A JPH0684576B2 (en) | 1984-02-17 | 1984-02-17 | Auxiliary nozzle device for fluid jet loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60173143A JPS60173143A (en) | 1985-09-06 |
| JPH0684576B2 true JPH0684576B2 (en) | 1994-10-26 |
Family
ID=12213755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59027176A Expired - Lifetime JPH0684576B2 (en) | 1984-02-17 | 1984-02-17 | Auxiliary nozzle device for fluid jet loom |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0684576B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3643058A1 (en) * | 1986-11-21 | 1988-06-30 | Picanol Nv | NOZZLE WEAVING MACHINE |
| JPH057268Y2 (en) * | 1987-03-19 | 1993-02-24 | ||
| JP2711099B2 (en) * | 1987-09-25 | 1998-02-10 | 日産テクシス株式会社 | Auxiliary nozzle for air jet loom |
| BE1015155A3 (en) * | 2002-10-23 | 2004-10-05 | Picanol Nv | SYRINGE nozzle for supporting a weft thread into a weaving machine. |
| BE1015261A3 (en) | 2002-12-19 | 2004-12-07 | Picanol Nv | SPRAY NOZZLE SUPPORTING a weft thread in a weaving machine. |
| BE1021694B1 (en) * | 2013-05-22 | 2016-01-08 | Picanol | AUXILIARY NOZZLE FOR A WEAVING MACHINE |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5562241A (en) * | 1978-11-02 | 1980-05-10 | Tsudakoma Ind Co Ltd | Subbnozzle for fluid jet type loom |
| NL8000836A (en) * | 1980-02-11 | 1981-09-01 | Rueti Te Strake Bv | SPRAY NOZZLE WITH SHIELDED NOZZLE, INTENDED FOR A RINSE WEAVING MACHINE. |
| JPS6032733B2 (en) * | 1980-09-06 | 1985-07-30 | 日産自動車株式会社 | Air injection loom auxiliary nozzle |
-
1984
- 1984-02-17 JP JP59027176A patent/JPH0684576B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60173143A (en) | 1985-09-06 |
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