JPS6011137B2 - Air injection loom guide - Google Patents
Air injection loom guideInfo
- Publication number
- JPS6011137B2 JPS6011137B2 JP55093246A JP9324680A JPS6011137B2 JP S6011137 B2 JPS6011137 B2 JP S6011137B2 JP 55093246 A JP55093246 A JP 55093246A JP 9324680 A JP9324680 A JP 9324680A JP S6011137 B2 JPS6011137 B2 JP S6011137B2
- Authority
- JP
- Japan
- Prior art keywords
- guide
- guide hole
- weft
- gap
- airflow
- 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
- D03D47/27—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
【発明の詳細な説明】 本発明は空気噴射式織機の案内子の改良に関する。[Detailed description of the invention] The present invention relates to improvements in guides for air-jet looms.
従来の空気噴射式織機の案内子としては、例えば第１図
に示すようなものがある。An example of a guide for a conventional air-jet loom is shown in FIG.
即ち、直状部１と湾曲部２とでほぼ全周を囲った案内孔
３とこれに連なる縞糸脱出用間隙４とを形成してあり、
かかる案内子を繰入れ方向に所定の間隔で並設して、そ
れらの案内孔３により主ノズル又は補助ノズルからの綾
糸搬送用空気流を案内するようになっている。尚、図中
の紬線は案内孔３内の流速分布を示している。しかしな
がら、このような従釆の案内子にあっては、案内孔３の
列内を流れながら拡散しようとする気流は各案内孔の内
周面により案内孔中心Ｃへ向う如く偏向させられつつ案
内されるのであるが、前記間隙４のところ、すなわち案
内孔内周面が欠除しているところでは、気流は前記の偏
向作用を受けられないまま拡散して該間隙から流出する
傾向となり、ために気流の中心ＣＡ、すなわち縞糸飛走
径路の中心は案内孔中ＯＣから間隙４側へ偏寄する結果
、飛走中の緯糸先端部に躍りなどが生じると、この先端
部が間隙４から飛び出すように挙動し、殊に緯糸の飛走
距離を増すためにその拘束力を弱めて縞糸張力を緩和し
た場合などには前記挙動がはげしくなって緯入れの安定
性を欠くことがあった。That is, a straight part 1 and a curved part 2 form a guide hole 3 that is almost entirely surrounded by a guide hole 3 and a striped thread escape gap 4 that is connected to the guide hole 3.
Such guides are arranged in parallel at predetermined intervals in the feeding direction, and the guide holes 3 of these guides guide the air flow for conveying the twill yarn from the main nozzle or the auxiliary nozzle. Note that the pongee line in the figure indicates the flow velocity distribution within the guide hole 3. However, in such a subordinate guide, the airflow that attempts to diffuse while flowing within the row of guide holes 3 is deflected toward the guide hole center C by the inner peripheral surface of each guide hole and guided. However, at the gap 4, that is, where the inner circumferential surface of the guide hole is missing, the airflow tends to diffuse and flow out from the gap without being affected by the deflection effect described above. As a result, the center CA of the airflow, that is, the center of the striped yarn flying path, is biased from the guide hole OC toward the gap 4 side, and as a result, when a jump occurs in the weft tip during flight, this tip moves away from the gap 4. The weft tends to jump out of the way, and especially when the restraining force is weakened to reduce the tension of the striped yarn in order to increase the flying distance of the weft, this behavior becomes severe and the weft insertion becomes unstable. .
本発明はこのような従釆の問題点に着目してなされたも
ので、綾糸脱出用間隙から離れたところにおける案内孔
の内面を狭中になるように案内孔周縁部を切欠いて薄肉
部、言換えれば薄肉部を形成し、該薄肉部からも適量の
空気を逸脱させて前記間隙４からの流出気流に対向させ
ることにより縞糸脱出用間隙から遠い方へ気流の中心を
譲導して、上記の問題点を解決することを目的としてい
る。The present invention has been made by focusing on such problems in the secondary structure, and the peripheral edge of the guide hole is cut out so that the inner surface of the guide hole at a location away from the twill escapement gap is narrowed, thereby forming a thin section. In other words, by forming a thin-walled portion and allowing an appropriate amount of air to deviate from the thin-walled portion to face the outflow airflow from the gap 4, the center of the airflow is directed away from the striped yarn escape gap. The aim is to solve the above problems.
以上に本発明を図面に基づいて説明する。The present invention will be described above based on the drawings.
第２図は本発明の一実施例を示している。FIG. 2 shows an embodiment of the invention.
尚、第１図と同一部分には同一符号を付してある。第２
図において、緯糸脱出用間隙４から離れた部位、この実
施例では直状部１と対向する側における案内孔３内周部
の肉厚を、その−側面を切欠くことにより案内子の内面
を狭中になるように薄肉として、薄肉部５を形成してあ
る。かかる構成によれば、薄肉部５を形成した部分では
、相し、隣る案内子との間隙が広くなり、加えて案内孔
内周面を一部欠除するから前記の偏向作用も幾分劣るよ
うになり、したがって気流は前記広くなった間隙へ逸散
してその背後への逸出量が増加するので緯糸脱出用間隙
４側へ偏寄しようとする気流中心はＣＡ′のように薄肉
部５側へ引寄せられて該間隙４から遠ざけられる結果、
縞糸先端部に躍りが生じてもその飛出しを防止すること
ができるのである。Note that the same parts as in FIG. 1 are given the same reference numerals. Second
In the figure, the wall thickness of the inner peripheral part of the guide hole 3 at a part away from the weft escape gap 4, in this embodiment, the side opposite to the straight part 1, is cut out on the - side surface to make the inner surface of the guide element. A thin wall portion 5 is formed to be thin so as to be narrow in the middle. According to this structure, in the part where the thin wall part 5 is formed, the gap between the adjacent guide elements becomes wider, and in addition, since a part of the inner circumferential surface of the guide hole is removed, the above-mentioned deflection effect is also somewhat reduced. Therefore, the airflow dissipates into the widened gap and the amount behind it increases, so the center of the airflow that tries to be biased towards the weft escape gap 4 side has a thin wall like CA'. As a result of being drawn toward the portion 5 side and away from the gap 4,
Even if the tip of the striped thread jumps, it can be prevented from jumping out.
尚、薄肉部を形成する部位は、気流の中心を何れの方向
へ引寄せるべきかを総入条件にもとづいて定められるべ
きものであるから実施例の部位に限られるものでないこ
とは勿論であり、また薄肉部の寸法は前記条件と空気経
済とを勘案して気流の中心を何程引寄せれば十分か、す
なわち薄肉部からの逸出空気量を最小限何程にすべきか
によって決定されるものであるが、気流中心を縞糸脱出
用間隙から遠ざけることによって該間隙から流出する空
気量が減少してこれが薄肉部における逸出空気増加分に
対し補償的に作用するので本発明にとって極めて都合が
よい。It should be noted that the part where the thin wall part is formed should be determined based on the general entry conditions in which direction the center of the airflow should be drawn, so it goes without saying that it is not limited to the part in the embodiment. In addition, the dimensions of the thin-walled portion are determined by how much the center of the airflow should be drawn in, taking into account the above conditions and air economy, that is, the minimum amount of air that should escape from the thin-walled portion. However, by moving the center of the airflow away from the striped thread escape gap, the amount of air flowing out from the gap is reduced, and this acts to compensate for the increase in escape air in the thin section, which is extremely effective for the present invention. convenient.
第３図Ａ〜Ｆには他の実施例を示す。Other embodiments are shown in FIGS. 3A to 3F.
Ａは両側面を毅状に切欠いて薄肉部５を形成したもの、
Ｂは内面と両側面との角部を斜めに切欠いて薄肉部６を
形成したもの、Ｃは片側のみを斜めに切欠し、たもの、
Ｄは両側を切欠いて且つ凸曲面としたもの、Ｅは片側の
み功欠いて且つ凸曲面としたもの、Ｆは両側を切欠いて
且つ凹曲面としたものである。このようにしても同機の
効果が得られる。また、第４図に示すように案内孔３の
内周面のみならず、その背万の側面を同一に薄肉として
もよい。以上説明したように本発明によれば、縞糸脱出
用間隙から遠い案内孔の内面を狭中となるように案内孔
周縁部を功欠くという簡単な構成により、案内孔内の最
大流速部を総糸脱出用間隙から遠去けることができ、緯
糸の飛出しを防止し得て緯入れ性能を向上させることが
できる。A has a sword-shaped notch on both sides to form a thin wall portion 5;
B is the one in which the corners of the inner surface and both sides are cut diagonally to form the thin wall part 6, and C is the one in which only one side is cut diagonally.
D is cut out on both sides and has a convex curved surface, E is cut out on only one side and has a convex curved surface, and F is cut out on both sides and has a concave curved surface. Even in this way, the same effect can be obtained. Further, as shown in FIG. 4, not only the inner circumferential surface of the guide hole 3 but also the side surface of the back may be made equally thin. As explained above, according to the present invention, the maximum flow velocity part in the guide hole is increased by a simple structure in which the peripheral edge of the guide hole is cut so that the inner surface of the guide hole far from the striped thread escape gap is narrowed. The weft yarn can be moved far away from the gap for escape of the entire yarn, and the weft yarn can be prevented from flying out, thereby improving the weft insertion performance.
図面の簡単な説明第１図Ａは従来の案内子を示す図、第
１図Ｂは同図ＡのＢ−Ｂ断面図、第２図Ａは本発明に係
る案内子の一実施例を示す図、第２図Ｂは同図ＡのＢ−
Ｂ断面図、第３図Ａ〜Ｆは他の実施例を示す断面図、第
４図Ａは更に他の実施例を示す図、第４図Ｂは同図Ａの
Ｂ−Ｂ断面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A shows a conventional guide, FIG. 1B is a sectional view taken along line B-B in FIG. 2A, and FIG. 2A shows an embodiment of the guide according to the present invention. Figure 2B is B- in Figure A of the same figure.
B sectional view, FIGS. 3A to 3F are sectional views showing other embodiments, FIG. 4A is a view showing still another embodiment, and FIG. 4B is a BB sectional view of FIG. .
３・…・・案内孔、４・・・…緯糸脱出用間隙、５・・
…・薄肉部。3... Guide hole, 4... Gap for weft escape, 5...
...・Thin wall part.
食１図（Ａ） 鰭１凶（Ｂ） 鰭２図（Ａ） 籍２図（Ｂ〉 食３図（Ａ） 蟹３図（Ｂ） 繁３図〈Ｃ） 簾３図〈Ｄ〉 孫３囚（Ｅ） 翁３図（Ｆ〉 葵ム図（Ａ） 静ム図（Ｂ）Eclipse 1 diagram (A) Fin 1 bad (B) Fin diagram 2 (A) Book 2 (B) Food 3 diagram (A) Crab 3 (B) Traditional illustration 3 (C) Blind screen 3〈D〉 Grandson 3 (E) Old Man Figure 3 (F) Aoi map (A) Still image (B)
Claims (1)
間隙とを有し、緯入れ方向に所定の間隔で並設されて緯
糸搬送用空気流を案内する空気噴射式織機の案内子にお
いて、緯糸脱出用間隙から離れた部位における案内孔の
内面を狭巾になるように案内孔周縁部を切欠いたことを
特徴とする空気噴射式織機の案内子。1. In a guide for an air-injection loom, which has a guide hole surrounding almost the entire circumference and a weft escape gap connected to the guide hole, which are arranged in parallel at a predetermined interval in the weft insertion direction to guide the airflow for weft conveyance. A guide for an air injection loom, characterized in that the peripheral edge of the guide hole is cut out so that the inner surface of the guide hole is narrow at a portion away from the weft escape gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55093246A JPS6011137B2 (en) | 1980-07-10 | 1980-07-10 | Air injection loom guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55093246A JPS6011137B2 (en) | 1980-07-10 | 1980-07-10 | Air injection loom guide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5721535A JPS5721535A (en) | 1982-02-04 |
| JPS6011137B2 true JPS6011137B2 (en) | 1985-03-23 |
Family
ID=14077144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55093246A Expired JPS6011137B2 (en) | 1980-07-10 | 1980-07-10 | Air injection loom guide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6011137B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59172784U (en) * | 1983-05-04 | 1984-11-19 | 株式会社豊田自動織機製作所 | Weft guide device in fluid jet loom |
| JPS59223338A (en) * | 1983-05-26 | 1984-12-15 | 株式会社豊田自動織機製作所 | Weft yarn guide of jet loom |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53126353A (en) * | 1977-04-06 | 1978-11-04 | Nissan Motor | Pneumatic guiding device for air jet loom |
| JPS54116460A (en) * | 1978-02-27 | 1979-09-10 | Toyoda Automatic Loom Works | Weft inserting apparatus in jet loom |
-
1980
- 1980-07-10 JP JP55093246A patent/JPS6011137B2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53126353A (en) * | 1977-04-06 | 1978-11-04 | Nissan Motor | Pneumatic guiding device for air jet loom |
| JPS54116460A (en) * | 1978-02-27 | 1979-09-10 | Toyoda Automatic Loom Works | Weft inserting apparatus in jet loom |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5721535A (en) | 1982-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3366490B2 (en) | Deformed reed for air jet loom | |
| JPS6011137B2 (en) | Air injection loom guide | |
| JPS5945773B2 (en) | Air injection loom weft insertion device | |
| US4458732A (en) | Apparatus for inserting a weft into a shed by jetting fluids in a jet loom | |
| US5323814A (en) | Reed pieces with recessed weft guide openings having inclined surfaces | |
| US5782271A (en) | Multi-section reed for air jet loom | |
| US4787422A (en) | Weaving reed with profiled teeth | |
| JP3357278B2 (en) | Deformed reed for air jet loom | |
| JPS59199834A (en) | Flat heald | |
| JP2724587B2 (en) | Osa feather for air jet loom and method of manufacturing the same | |
| JPH01314753A (en) | Weft-inserting unit in jet loom | |
| JPS6021411Y2 (en) | Air injection loom weft insertion device | |
| KR840000451Y1 (en) | A left guide assembly in the jet loom | |
| EP3967892A1 (en) | Fastener of weaving machine and fixing device for support of the weaving machine | |
| JPS6231100B2 (en) | ||
| JPS5841937A (en) | Guide element of air jet type loom | |
| US4427036A (en) | Weft guide device in a jet loom | |
| JPS599028Y2 (en) | Weft guide in fluid jet looms | |
| JPS59157353A (en) | Weft yarn conveyor of air jet type loom | |
| JPS6034068Y2 (en) | Air injection loom auxiliary nozzle | |
| JPS5913266Y2 (en) | Weft guide assembly in fluid jet looms | |
| JPS59166250U (en) | Optical system stain prevention device for laser printers, etc. | |
| JPH049219B2 (en) | ||
| JPS58115147A (en) | Wefting apparatus of air jet type loom | |
| JPS6231101B2 (en) |