JPS6344852B2 - - Google Patents
Info
- Publication number
- JPS6344852B2 JPS6344852B2 JP341581A JP341581A JPS6344852B2 JP S6344852 B2 JPS6344852 B2 JP S6344852B2 JP 341581 A JP341581 A JP 341581A JP 341581 A JP341581 A JP 341581A JP S6344852 B2 JPS6344852 B2 JP S6344852B2
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- nozzle
- center
- thread
- plate
- 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
- 230000000694 effects Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- -1 Polypropylene Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
【発明の詳細な説明】
本発明は糸の流体嵩高加工に用いるノズルの改
良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a nozzle used for fluid bulking of yarn.
一般に流体による糸条加工用ノズルは気体導入
口を含む胴部と中央に糸道孔を有するニードル及
びベンチユリーとから、形成されるノズル本体と
ノズル本体から適当に離れて位置する激突板から
成つている。このノズルによる糸加工の原理は、
概略次の如くである。すなわち、空気は、胴部
と、ニードルによつて形成される気体環状室から
ベンチユリーによつて形成される糸出口通路に至
る際撹乱流体を生じせしめ、糸条に混繊交絡を行
い加えて、激突板に糸条と、空気を激突させるこ
とにより、撹乱流を一層助長させ、その乱流の作
用により、糸に緻密なループを形成させ、嵩高加
工糸を得ている。 In general, a fluid-based yarn processing nozzle consists of a body including a gas inlet, a needle and a ventilee having a thread passage hole in the center, a nozzle body formed from the body, and a collision plate located at an appropriate distance from the nozzle body. There is. The principle of thread processing using this nozzle is
The outline is as follows. That is, the air creates a turbulent fluid when it passes from the gas annular chamber formed by the body and the needle to the yarn outlet passage formed by the ventilate, and adds fiber entanglement to the yarn. By causing the yarn to collide with the air against the collision plate, turbulent flow is further promoted, and the action of the turbulent flow causes the yarn to form dense loops, resulting in a bulky textured yarn.
しかしながら、この基本的方式に於いては、加
工速度が例えば、100デニール位の糸を用いた場
合、高々100ｍ／分前後であり、3000デニールの
糸を加工しようとすると、50ｍ／分が限界であつ
た。ループ付与による嵩高加工糸に対する要請が
フイラメント糸のスパンライク技術として注目さ
れているにもかかわらず、生産化が困難な原因は
加速度が遅いことによる生産性の低いこと、及び
付随して生じる加工コスト高であることが最大の
ものであつた。 However, in this basic method, the processing speed is at most around 100 m/min when using thread of about 100 denier, and 50 m/min is the limit when processing thread of 3000 denier. It was hot. Although the demand for bulky textured yarns by adding loops is attracting attention as a spun-like technology for filament yarns, the reason why it is difficult to commercialize is the low productivity due to slow acceleration and the accompanying processing costs. The biggest thing was that it was high.
かかる問題を解決すべく、例えば、特開昭52−
21446、特開昭53−49147、特開昭53−139854等に
見られる如く、種々の検討がなされてはいるもの
の、決定的な解決に至つていないのが実状であ
る。原因は、これら改良ノズルはその改良の主眼
点がノズル本体にあり、ニードル、ベンチユリー
あるいは、気体導入口等の形状変更であつた。こ
れらの各部の形状は、変更されるに伴ない複雑化
し、高度な工作技術を要し、ノズルの歩留りの低
下を引き起こし、ノズルの高価格化、ノズルへの
信頼度の低下を招いているのが実状である。本発
明はかかる従来の問題点を解消したものであつ
て、その発明の要旨とするところは、中心に孔を
有し、側部に前記中心孔と連通した気体導入口を
有する胴部と、該胴部の糸入口側から胴の中心孔
に嵌入せしめた中心に糸道孔を有するニードル
と、胴部の糸出口側から胴の中心孔に嵌入せしめ
たベンチユリーと、該ベンチユリーの糸出口部近
傍に設けた激突板とからなる糸条加工用ノズルに
おいて、前記激突板を多孔型にすると共に、該多
孔型激突板の裏面に先端が球状をなしている棒状
体の該先端部をベンチユリーの中心線上で接触せ
しめたことを特徴とする糸条加工用ノズルにあ
る。 In order to solve this problem, for example,
21446, JP-A-53-49147, JP-A-53-139854, etc., various studies have been made, but the reality is that no definitive solution has been reached. The reason for this is that in these improved nozzles, the main focus of improvement was on the nozzle body, and the shape of the needle, ventilate, gas inlet, etc. was changed. As the shapes of these parts change, they become more complex and require advanced manufacturing techniques, leading to lower nozzle yields, higher nozzle prices, and lower nozzle reliability. is the actual situation. The present invention solves these conventional problems, and the gist of the invention is to provide: a body having a hole in the center and a gas inlet communicating with the center hole in the side; A needle having a thread guide hole in the center, which is fitted into the center hole of the trunk from the yarn entrance side of the trunk, a ventilary, which is fitted into the center hole of the trunk from the yarn exit side of the trunk, and a thread exit portion of the benchily. In a yarn processing nozzle consisting of a collision plate provided nearby, the collision plate is made of a porous type, and the tip of a rod-shaped body with a spherical tip is attached to the back side of the porous collision plate to form a ventilate. A yarn processing nozzle characterized in that the nozzle is brought into contact with the center line.
以下、本発明を図面に従つて詳細に説明する。 Hereinafter, the present invention will be explained in detail with reference to the drawings.
本発明は前述した如く、ノズル本体は、従来の
ノズルとほぼ同等のものである。すなわち、気体
導入口１を含む胴部２と中央に糸道孔３を有する
ニードル４により形成される気体環状室８及び糸
出口通路９を形成するベンチユリー５とから成る
ノズル本体である。従つてノズル本体より離れた
位置に激突板を用いている。この激突板は、撹乱
流を積極的に生じさせる目的のために材質の如何
にかかわらず、空気は激突板内を通さないもので
あつた。従つて空気はその殆んどが該板に激突し
て撹乱流を起こし、そして該板のない方向へ逃散
していた。 As described above, the nozzle body of the present invention is substantially the same as a conventional nozzle. That is, the nozzle body is composed of a body part 2 including a gas inlet 1, a gas annular chamber 8 formed by a needle 4 having a thread passage hole 3 in the center, and a ventilee 5 forming a thread outlet passage 9. Therefore, a collision plate is used at a position distant from the nozzle body. This collision plate was designed to prevent air from passing through the collision plate, regardless of the material, in order to actively generate a turbulent flow. Therefore, most of the air collided with the plate, creating a turbulent flow, and then escaping in the direction of the plate.
本発明者らは、鋭意検討の結果、過度の撹乱流
の発生はループ形成に際し、糸の集束性にとつて
は、悪影響を及ぼすことを見出した。すなわちノ
ズル本体の糸出口通路９より糸と共に噴出する空
気の大部分は激突板に激突し反射され、撹乱流と
なるが、この反射された空気が過度な場合、ノズ
ル本体から噴出される空気と衝突することにより
ノズル本体からの空気の噴出作用を妨たげる。ま
た進行してくる糸は激突板に垂直に衝突した後、
直角に曲げられ引き出されるが、反射された空気
（反射空気流）は糸の進行方向と逆行してしまう。
加えて逃散しようとする空気（逃散空気流）の流
れは、直角に曲げられ引き出される糸に対して
は、押し出す力となり、従つて、激突板上の直角
に曲がる糸の屈曲点を境に糸の流れに対する空気
の流れは反射空気流と逃散空気流とは逆方向に作
用し、糸の集束性を著しく低下させてしまう。こ
の現象は、加工速度を高めることにより顕著に現
われ、速度限界が低いものとなつてくる。 As a result of extensive studies, the present inventors have found that the generation of excessively turbulent flow has an adverse effect on the convergence of the yarn during loop formation. In other words, most of the air ejected with the yarn from the yarn outlet passage 9 of the nozzle body collides with the collision plate and is reflected, creating a turbulent flow, but if this reflected air is excessive, it collides with the air ejected from the nozzle body. This prevents the air from blowing out from the nozzle body. In addition, the advancing thread collides vertically with the collision plate, and then
It is bent at right angles and pulled out, but the reflected air (reflected airflow) runs counter to the direction of travel of the thread.
In addition, the flow of air that is trying to escape (escaping air flow) acts as a pushing force against the thread that is bent at right angles and pulled out, and therefore, the flow of air that is trying to escape (escaping air flow) acts as a pushing force against the thread that is bent at right angles and pulled out. The air flow with respect to the flow of the reflected air flow and the escape air flow act in opposite directions, and the convergence of the thread is significantly reduced. This phenomenon becomes more noticeable as the processing speed increases, and the speed limit becomes lower.
上述の様に緻密なループを高加速度で形成させ
る場合には、適当な撹乱流であれば良く過度の撹
乱流発生は、糸の集束性に悪影響を及ぼし加工速
度の限界を引き起こすことになる。 When forming a dense loop at high acceleration as described above, an appropriate turbulent flow is sufficient, and excessive turbulent flow will adversely affect the cohesiveness of the yarn and limit the processing speed.
適度な撹乱流により高速化を実現させるための
具体的な方法に例えば、激突板を球体にする方法
や円柱状棒をノズル本体の糸出口延長線上で平行
に置く方法も考えられるが、これらの方法はノズ
ル本体から噴出する空気の推進力を維持し、反射
空気流を減少させ、逃散空気流を糸の直角に曲げ
られ引き出される方向と一致しない点では優れて
いるが、本質的に糸の激突板への激突点が点であ
るため糸の流れ自体が、不安定であり、均一で緻
密なループ形成が困難である。 Specific methods for achieving high speed through moderately turbulent flow include, for example, making the impact plate spherical or placing a cylindrical rod parallel to the extension line of the yarn exit of the nozzle body. Although this method is superior in that it maintains the driving force of the air ejected from the nozzle body, reduces the reflected air flow, and does not cause the escaping air flow to coincide with the direction in which the yarn is bent at right angles and pulled out, it essentially Since the point of collision with the collision plate is a point, the flow of the yarn itself is unstable, making it difficult to form a uniform and dense loop.
本発明は適当な撹乱流と安定した高速糸加工を
極めて容易にしたものである。すなわち、ノズル
本体は従来の基本ノズルと同様であるが、激突板
を多孔型にすると共に、該多孔型激突板の裏面に
先端が球状をなしている棒状体の該先端部をベン
チユリーの中心線上で接触せしめるのである。 The present invention greatly facilitates suitable turbulent flow and stable high-speed yarn processing. That is, the nozzle body is the same as the conventional basic nozzle, but the impact plate is made of a porous type, and the tip of a rod-shaped body with a spherical tip is placed on the back side of the porous impact plate on the center line of the ventilate. Let them come in contact with each other.
多孔型激突板を用いることにより、反射空気流
を減少させノズル本体から噴出する空気の推進力
を妨たげずしかも逃散空気流は糸の流れとは一致
しないため、高速加工が可能となる。しかも多孔
型激突板を平面板とすることにより糸の該板への
激突が面で行われるために緻密なループが安定し
て得られることになる。 By using a porous collision plate, the reflected air flow is reduced and the propulsive force of the air ejected from the nozzle body is not hindered, and the escaped air flow does not match the flow of the yarn, making high-speed processing possible. Moreover, since the perforated impact plate is a flat plate, the impact of the thread against the plate is carried out in a plane, so that a dense loop can be stably obtained.
加えて、多孔型激突板の裏面に先端が球状をな
している棒状体の該先端部がベンチユリーの中心
線上で接触していることにより、適度な撹乱流が
得られ緻密なループ形成を極めて容易にしてい
る。本発明の多孔型激突板は加工糸が貫通しない
程度の孔を有するものであれば、いかなるもので
も良く、例えばメツシユ等でも何らさしつかえな
い。また孔の密度は糸加工に際して反射空気流の
悪影響のない範囲であれば粗密は問わないが密度
の高い方が好ましい。棒状体は撹乱流の効果が損
われないために該板に垂直に接触している必要が
ある。棒状体の先端部は球形状もしくは楕円形状
いづれでもよいが先端部が平面状の場合は撹乱作
用が過度となり又、円錘状では撹乱作用が低下し
すぎるため避けるべきである。 In addition, the tip of the rod-shaped body with a spherical tip is in contact with the back surface of the porous impact plate on the center line of the ventilate, making it extremely easy to obtain a moderately turbulent flow and form a dense loop. I have to. The perforated impact plate of the present invention may be of any type as long as it has holes to the extent that processed threads do not pass through it, such as a mesh. Further, the density of the holes does not matter as long as the density of the holes is within a range that does not have an adverse effect of reflected air flow during thread processing, but a high density is preferable. The rod-like body must be in perpendicular contact with the plate so that the effect of the turbulent flow is not impaired. The tip of the rod-like body may be either spherical or elliptical; however, if the tip is planar, the disturbing effect will be excessive, and if it is conical, the disturbing effect will be too low, so it should be avoided.
以下実施例により本発明を更に具体的に説明す
る。 The present invention will be explained in more detail with reference to Examples below.
実施例 １
ポリエステルフイラメント75d／36fと50d／24f
を各々ノズルへのオーバーフイード率を70％及び
３％とし、空気圧4.5Kg／cm2の加圧空気を用い本
発明のノズルにより下記条件で処理したところ
250ｍ／分の加工速度で良好な嵩高糸が得られた。
尚上記試料を従来の方法で実施した場合本発明と
同様の糸形成が可能な加工速度限界は110ｍ／分
であつた。Example 1 Polyester filament 75d/36f and 50d/24f
were treated with the nozzle of the present invention under the following conditions using pressurized air at an air pressure of 4.5 kg/cm 2 with an overfeed rate of 70% and 3% to the nozzle, respectively.
A good bulky yarn was obtained at a processing speed of 250 m/min.
When the above sample was processed using the conventional method, the processing speed limit at which thread formation similar to that of the present invention was possible was 110 m/min.
(イ) ノズル本体と多孔型激突板までの距離：２mm
(ロ) 多孔型激突板：90メツシユ金網
(ハ) 棒状体の先端部：半径1.5mmの球状
実施例 ２
ポリエステルフイラメント75d／36fと75d／36f
を各々ノズルへのオーバーフイード率を40％及び
５％とし空気圧4.5Kg／m2の加圧空気を用い本発
明ノズルにより下記条件で処理したところ300
ｍ／分の加工速度で良好な嵩高糸が得られた。従
来の方法で実施した場合本発明と同様の糸形成が
可能な加工速度限界は120ｍ／分であつた。(B) Distance between the nozzle body and the porous collision plate: 2 mm (B) Porous collision plate: 90 mesh wire mesh (C) Tip of the rod: Spherical with a radius of 1.5 mm Example 2 Polyester filament 75d/36f and 75d /36f
were treated with the nozzle of the present invention under the following conditions using pressurized air at an air pressure of 4.5 kg/m 2 with an overfeed rate of 40% and 5%, respectively.
A good bulky yarn was obtained at a processing speed of m/min. When the conventional method was used, the processing speed limit at which yarn formation similar to that of the present invention was possible was 120 m/min.
(イ) ノズル本体と多孔型激突板までの距離1.8mm
(ロ) 多孔型激突板：90メツシユ金網
(ハ) 棒状体の先端部：短径３mm、長径５mmの楕円
形状（長径方向に激突板に接触）
実施例 ３
ポリプロピレン700d／100fと340d／60fを各々
オーバーフイード率24％及び５％とし空気圧6.0
Kg／cm2の加圧空気を用いて、本発明ノズルにより
下記条件で処理したところ250ｍ／分の加工速度
で良好な嵩高糸が得られた。従来の方法で実施し
た場合本発明と同様の糸形成が可能な加工速度限
界は52ｍ／分であつた。(B) Distance between the nozzle body and the porous collision plate: 1.8 mm (B) Porous collision plate: 90 mesh wire mesh (C) Tip of the rod: Oval shape with a short axis of 3 mm and a major axis of 5 mm (the collision plate in the major axis direction) Example 3 Polypropylene 700d/100f and 340d/60f were overfeeded at 24% and 5%, respectively, and the air pressure was 6.0.
When processed under the following conditions using the nozzle of the present invention using pressurized air of Kg/cm 2 , a good bulky yarn was obtained at a processing speed of 250 m/min. When the conventional method was used, the processing speed limit at which yarn formation similar to that of the present invention was possible was 52 m/min.
(イ) ノズル本体と多孔型激突板までの距離：７mm (ロ) 多孔型激突板：60メツシユ金網 (ハ) 棒状体先端部：半径2.5mmの球状(a) Distance between nozzle body and porous impact plate: 7mm (b) Porous crash plate: 60 mesh wire mesh (c) Tip of rod: spherical with a radius of 2.5 mm
図は本発明に係るノズルの一例を示す縦断側面
図で、同図において、１は気体導入口、２は胴
部、３は糸道孔、４はニードル、５はベンチユリ
ー、６は多孔型激突板、７は棒状体、９は糸出口
通路、１０，１１は供給糸である。
The figure is a longitudinal side view showing an example of a nozzle according to the present invention, in which 1 is a gas inlet, 2 is a body, 3 is a thread guide hole, 4 is a needle, 5 is a ventilator, and 6 is a multi-hole type bumper. The plate, 7 is a rod-shaped body, 9 is a yarn exit passage, and 10 and 11 are supply yarns.
Claims (1)
た気体導入口を有する胴部と、該胴部の糸入口側
から胴の中心孔に嵌入せしめた中心に糸道孔を有
するニードルと、胴部の糸出口側から胴の中心孔
に嵌入せしめたベンチユリーと、該ベンチユリー
の糸出口部近傍に設けた激突板とからなる糸条加
工用ノズルにおいて前記激突板を多孔型にすると
共に、該多孔型激突板の裏面に先端が球状をなし
ている棒状体の該先端部をベンチユリーの中心線
上で接触せしめたことを特徴とする糸条加工用ノ
ズル。1. A body having a hole in the center and a gas inlet communicating with the center hole on the side, and a needle having a thread guide hole in the center that is inserted into the center hole of the body from the thread entrance side of the body. In a yarn processing nozzle comprising a ventilary inserted into a center hole of the trunk from the yarn exit side of the trunk, and a bumping plate provided near the yarn exit of the ventilate, the bumping plate is made of a porous type; A yarn processing nozzle, characterized in that the tip of a rod-shaped body having a spherical tip is brought into contact with the back surface of the porous impact plate on the center line of a ventilate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP341581A JPS57117642A (en) | 1981-01-13 | 1981-01-13 | Nozzle for processing yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP341581A JPS57117642A (en) | 1981-01-13 | 1981-01-13 | Nozzle for processing yarn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57117642A JPS57117642A (en) | 1982-07-22 |
| JPS6344852B2 true JPS6344852B2 (en) | 1988-09-07 |
Family
ID=11556747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP341581A Granted JPS57117642A (en) | 1981-01-13 | 1981-01-13 | Nozzle for processing yarn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57117642A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01174248U (en) * | 1988-05-31 | 1989-12-11 |
-
1981
- 1981-01-13 JP JP341581A patent/JPS57117642A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01174248U (en) * | 1988-05-31 | 1989-12-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57117642A (en) | 1982-07-22 |
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