JPH0753924B2 - Cooling tube for melt spinning of synthetic fibers - Google Patents
Cooling tube for melt spinning of synthetic fibersInfo
- Publication number
- JPH0753924B2 JPH0753924B2 JP60008483A JP848385A JPH0753924B2 JP H0753924 B2 JPH0753924 B2 JP H0753924B2 JP 60008483 A JP60008483 A JP 60008483A JP 848385 A JP848385 A JP 848385A JP H0753924 B2 JPH0753924 B2 JP H0753924B2
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- cooling
- spinning
- melt spinning
- cold air
- 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
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、合成繊維の溶融紡糸用冷却筒に関するもので
ある。Description: TECHNICAL FIELD The present invention relates to a cooling barrel for melt spinning synthetic fibers.
従来の技術 合成繊維の溶融紡糸法において、5000m/分以上の紡糸引
取速度で紡糸する場合、特開昭59−192711号公報に開示
される様にノズル直下に加熱筒を設け、次いで該加熱筒
に連続させて円筒状冷却筒を設け、糸条全周方向におい
て糸条に対して垂直方向の冷却風を糸走方向に添つて均
一に吹きつける方法及び装置がある。2. Description of the Related Art In the melt spinning method of synthetic fibers, in the case of spinning at a spinning take-up speed of 5000 m / min or more, a heating cylinder is provided immediately below the nozzle as disclosed in JP-A-59-192711, and then the heating cylinder is used. There is a method and a device in which a cylindrical cooling cylinder is continuously provided to the yarn and cooling air in a direction perpendicular to the yarn is uniformly blown along the yarn running direction in the entire circumferential direction of the yarn.
従来の糸条全周方向において糸条に対して垂直方向の冷
却風を糸走方向に添つて均一に吹きつけると糸ゆれが発
生して安定な紡糸引取りが困難であつた。糸ゆれの発生
機構を検討した結果、溶融紡糸おいて5000m/分以上の紡
糸引取速度で紡糸する場合、従来技術において糸条の変
形過程をゆるやかにする目的の為に紡糸ノズル直下に糸
条廻りの空気温度を高く保つ加熱筒を設け、該筒の下に
冷却装置を置く事が一般的に知られている。上記の紡糸
方法における加熱筒直下の糸条の状態は、糸条にかかる
張力が低く、且つ糸条温度が固化点よりも高為に、糸走
方向に対して垂直方向の横風が糸条に吹きつけられると
糸ゆれを生じる。また5000m/分以上の引取速度で紡糸す
る場合、糸条は加熱筒以降において、ネツキング現象を
伴なう急激な速度変化で変形し、この時糸走方向におい
て糸条廻りの随伴流も急激に増加する。該随伴流とバラ
ンスがとれていない冷風供給を行なつた場合、例えば糸
条廻りの随伴流と無関係に、糸走方向に添つて冷風の吹
出量が一定の時には、特に加熱筒直下において、糸条に
かかる張力が低く、且つ随伴流も小さい為に、横風によ
つて糸がゆらされる。以上、述べた糸条廻りの空気の流
れや、該流れに伴なう糸ゆれについては、実際の紡糸中
の状態で四塩化チタン等の発煙剤を用いて空気の流れを
可視化する事により観察できる。該糸ゆれが大きい場
合、単糸間での接触現象が生じ、単糸間の融着を生じた
り、糸切れの原因になつたりする。When a cooling air in a direction perpendicular to the yarn is blown uniformly along the yarn running direction in the conventional yarn all-round direction, yarn fluctuation occurs and stable spinning take-up is difficult. As a result of investigating the mechanism of occurrence of yarn wobble, when spinning at a spinning take-up speed of 5000 m / min or more in melt spinning, the yarn around the spinning nozzle is located immediately below the spinning nozzle for the purpose of slowing down the yarn deformation process in the conventional technology. It is generally known to provide a heating cylinder for keeping the air temperature high and to place a cooling device under the cylinder. The condition of the yarn just below the heating cylinder in the above spinning method is that the tension applied to the yarn is low and the yarn temperature is higher than the solidification point, so that a cross wind in the direction perpendicular to the yarn running direction is generated in the yarn. When it is sprayed, it causes yarn fluctuations. Further, when spinning at a take-up speed of 5000 m / min or more, the yarn is deformed by a rapid speed change accompanied by a necking phenomenon after the heating cylinder, and at this time, the accompanying flow around the yarn also rapidly in the yarn running direction. To increase. When cold air is supplied that is not balanced with the accompanying flow, for example, when the blowing amount of the cooling air is constant along the yarn running direction, regardless of the accompanying flow around the yarn, especially when the yarn is immediately below the heating cylinder. Since the tension applied to the thread is low and the associated flow is small, the yarn is shaken by the cross wind. As described above, the air flow around the yarn and the yarn sway accompanying the flow are observed by visualizing the air flow using a smoke generating agent such as titanium tetrachloride in the actual spinning state. it can. When the yarn deviation is large, a contact phenomenon occurs between the single yarns, which causes fusion between the single yarns or causes a yarn breakage.
発明が解決しようとする問題点 本発明は従来の冷却筒では防止できなかつた糸ゆれをな
くした溶融紡糸用冷却筒を提供するにある。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention provides a cooling cylinder for melt spinning in which a yarn fluctuation that cannot be prevented by a conventional cooling cylinder is eliminated.
問題点を解決する為の手段 上記本発明の目的を達成するために、本発明は円筒状冷
却筒の冷風吹出し面の空気通過抵抗が実質的に円周方向
において均一、且つ糸条走行方向において漸減してな
り、走行糸条随伴流に見合う量の冷却空気を供給する、
合成繊維の溶融紡糸用冷却筒にある。Means for Solving the Problems In order to achieve the above-mentioned object of the present invention, the present invention provides that the air passage resistance of the cold air blowing surface of the cylindrical cooling cylinder is substantially uniform in the circumferential direction and in the yarn running direction. The cooling air is gradually reduced, and the cooling air is supplied in an amount commensurate with the traveling yarn wake flow.
It is in a cooling tube for melt spinning of synthetic fibers.
本発明において、同心円状にノズル孔を配列したノズル
より吐出された糸条に、糸走方向に添つて糸条全周方向
から随伴流に見合う冷風を供給する事により糸ゆれを防
止できる。In the present invention, the yarn fluctuation can be prevented by supplying the cool air, which corresponds to the accompanying flow, from the entire circumferential direction of the yarn along the yarn running direction to the yarn discharged from the nozzles in which the nozzle holes are concentrically arranged.
また冷風の供給量を随伴流に合わせない場合糸ゆれを生
じる。随伴流量は、四塩化チタン等の発煙剤を用いて糸
条廻りの空気の流線を可視化し、該流線に合わせて熱線
風速計により流速を測定する事により求められる。If the amount of cold air supplied is not adjusted to the accompanying flow, yarn wobbling will occur. The associated flow rate is obtained by visualizing the streamline of the air around the yarn using a smoke generating agent such as titanium tetrachloride and measuring the flow velocity with a hot-wire anemometer in accordance with the streamline.
実施例 本発明の冷却筒の実施態様の例を図面により説明する。Example An example of an embodiment of the cooling cylinder of the present invention will be described with reference to the drawings.
第１図、第２図は、本発明に係る冷却筒の縦断面図であ
り、第３図（イ），（ロ）は、第１図に示す円筒１の展
開図を示す。1 and 2 are longitudinal sectional views of a cooling cylinder according to the present invention, and FIGS. 3 (a) and 3 (b) are developed views of the cylinder 1 shown in FIG.
第１図において冷風吹出量を調整する構造として示す円
筒１に冷風吹出穴２のピツチが均一で穴径を糸条の随伴
流に見合う様に変化させた例（第３図（イ））を示す。An example in which the pitch of the cold air blowing hole 2 is uniform in the cylinder 1 shown in FIG. 1 as a structure for adjusting the amount of cold air blowing and the hole diameter is changed so as to correspond to the accompanying flow of the yarn (FIG. 3 (a)) Show.
第１図において冷風吹出量を調整する構造として示す円
筒１に冷風吹出穴２の穴径が均一で穴ピツチを糸条の随
伴流に見合う様に変化させた例（第３図（ロ））を示
す。An example in which the diameter of the cold air blowing holes 2 is uniform and the hole pitch is changed so as to be commensurate with the accompanying flow of the yarn in the cylinder 1 shown in FIG. 1 as a structure for adjusting the amount of cold air blowing (FIG. 3 (b)). Indicates.
第２図において冷風吹出量を調整する構造として、冷風
吹出穴２を有する円筒１の廻りに、フエルト状の布３を
捲きつけ、糸条の随伴流に見合う様に該布の厚みを変化
させた例を示す。As a structure for adjusting the amount of cold air blown out in FIG. 2, a felt-like cloth 3 is wrapped around a cylinder 1 having a cold air blowout hole 2 and the thickness of the cloth is changed so as to match the accompanying flow of the yarn. Here is an example.
以上のべた冷風吹出量を調整する構造については、組み
合わせて用いる事も可能である。It is also possible to use the above structures for adjusting the amount of blown cold air in combination.
発明の効果 本発明の冷却筒を合成繊維紡糸装置に組込み紡糸した結
果、従来の冷却装置を用いて紡糸した場合と比較して糸
ゆれがなくなり、捲き取つた糸の毛羽の発生率は10％以
下となつた。As a result of incorporating the cooling tube of the present invention into the synthetic fiber spinning apparatus and performing spinning, the yarn fluctuation is eliminated as compared with the case of spinning using the conventional cooling device, and the occurrence rate of fluff of the wound-up yarn is 10%. The following.
第１図，第２図は、本発明の冷却筒の例を示す縦断面図
である。第３図（イ），（ロ）は、第１図に示す円筒１
の展開図の例を示す。 １……円筒、２……冷風吹出穴、３……布、４……整流
板。1 and 2 are vertical sectional views showing an example of the cooling cylinder of the present invention. 3 (a) and 3 (b) show the cylinder 1 shown in FIG.
The example of the development view of is shown. 1 ... Cylinder, 2 ... Cold air blowout hole, 3 ... Cloth, 4 ... Straightening plate.
Claims (4)
れる円筒状の冷却筒の筒壁を通って外側から内側に供給
される冷風の吹出し面の空気通過抵抗が実質的に円周方
向において均一、且つ糸条走行方向において漸減してな
り、走行糸条随伴流に見合う量の冷却空気を供給する、
合成繊維の溶融紡糸用冷却筒。1. An air passage resistance of a blowing surface of cool air supplied from the outside to the inside through a wall of a cylindrical cooling cylinder attached below a heating cylinder directly below a spinning nozzle is substantially circumferential. It is uniform and gradually decreases in the yarn traveling direction, and supplies an amount of cooling air commensurate with the traveling flow of the yarn.
Cooling tube for melt spinning of synthetic fibers.
が円周方向に均一に配され且つこれらの合計面積が糸条
走行方向に漸増することによって、前記の空気抵抗が漸
減するものである特許請求の範囲第（１）項の溶融紡糸
用冷却筒。2. The air resistance is gradually reduced by arranging a large number of cold air blowing holes formed in the cylindrical wall uniformly in the circumferential direction and gradually increasing the total area of these holes in the yarn running direction. The melt-spinning cooling tube according to claim (1).
るものである特許請求の範囲第（２）項の溶融紡糸用冷
却筒。3. The cooling cylinder for melt spinning according to claim 2, wherein the diameter of the cold air blowing hole is gradually increased in the axial direction.
するものである特許請求の範囲第（２）項の溶融紡糸用
冷却筒。4. The cooling cylinder for melt spinning according to claim (2), wherein the pitch of the cold air blowing holes in the axial direction is gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60008483A JPH0753924B2 (en) | 1985-01-22 | 1985-01-22 | Cooling tube for melt spinning of synthetic fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60008483A JPH0753924B2 (en) | 1985-01-22 | 1985-01-22 | Cooling tube for melt spinning of synthetic fibers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61174411A JPS61174411A (en) | 1986-08-06 |
| JPH0753924B2 true JPH0753924B2 (en) | 1995-06-07 |
Family
ID=11694353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60008483A Expired - Lifetime JPH0753924B2 (en) | 1985-01-22 | 1985-01-22 | Cooling tube for melt spinning of synthetic fibers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753924B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4712988A (en) * | 1987-02-27 | 1987-12-15 | E. I. Du Pont De Nemours And Company | Apparatus for quenching melt sprun filaments |
| US5219582A (en) * | 1991-12-06 | 1993-06-15 | E. I. Du Pont De Nemours And Company | Apparatus for quenching melt spun filaments |
| US5219506A (en) * | 1991-12-06 | 1993-06-15 | E. I. Du Pont De Nemours And Company | Preparing fine denier staple fibers |
| JP4760441B2 (en) * | 2006-02-23 | 2011-08-31 | 東レ株式会社 | Melt spinning apparatus and melt spinning method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1395942A (en) * | 1972-04-27 | 1975-05-29 | Ici Ltd | Inorganic oxide glasses |
-
1985
- 1985-01-22 JP JP60008483A patent/JPH0753924B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61174411A (en) | 1986-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |