JPS6330406B2 - - Google Patents
Info
- Publication number
- JPS6330406B2 JPS6330406B2 JP55142617A JP14261780A JPS6330406B2 JP S6330406 B2 JPS6330406 B2 JP S6330406B2 JP 55142617 A JP55142617 A JP 55142617A JP 14261780 A JP14261780 A JP 14261780A JP S6330406 B2 JPS6330406 B2 JP S6330406B2
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- hole
- nozzle
- spinneret
- 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
- 229920000642 polymer Polymers 0.000 claims description 56
- 238000004804 winding Methods 0.000 claims description 5
- 230000001788 irregular Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000009987 spinning Methods 0.000 description 4
- 238000002074 melt spinning Methods 0.000 description 3
- 230000000452 restraining effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Description
【発明の詳細な説明】
本発明は、溶融紡糸法により合成繊維を製造す
る為の紡糸口金の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in spinnerets for producing synthetic fibers by melt spinning.
第１図ａに示される従来の溶融紡糸用の紡糸口
金１は、ポリマー導入孔２の底部にデツドポイン
ト３がある為、紡糸作業が進むにつれて、第１図
ｂに示す如くデツドポイント３に溶融ポリマーの
滞留物４が成長固化し、やがてポリマー吐出孔５
の入口が完全に覆われて孔づまりするものであ
る。またポリマー吐出孔５の軸方向は糸の巻取り
方向とずれている為、その先端周縁の一部が第１
図ｃに示す如く摩耗し、特に異形孔等の場合には
第１図ｄに示す如くポリマー吐出孔５の先端周縁
に摩耗差が生じ、ポリマー吐出孔５が変形するの
で、糸の形状にばらつきが生じるものである。 The conventional spinneret 1 for melt spinning shown in Fig. 1a has a dead point 3 at the bottom of the polymer introduction hole 2, so as the spinning operation progresses, the molten polymer flows to the dead point 3 as shown in Fig. 1b. The retained material 4 grows and solidifies, and eventually the polymer discharge hole 5
The entrance is completely covered and the hole is clogged. Also, since the axial direction of the polymer discharge hole 5 is deviated from the winding direction of the yarn, a part of the periphery of the tip of the polymer discharge hole 5 is
As shown in Figure c, wear occurs, and especially in the case of irregularly shaped holes, a difference in wear occurs at the periphery of the tip of the polymer discharge hole 5 as shown in Figure 1D, and the polymer discharge hole 5 is deformed, resulting in variations in the shape of the thread. occurs.
ところで前記ポリマー導入孔２の底部のデツド
ポイント３を無くする為には、第２図ａ，ｂに示
す如くポリマー導入孔２の底部を円錐状に加工
し、然る後ポリマー吐出孔５を穿設すれば良い
が、この場合第２図ｂに示す如くポリマー吐出孔
５の中央部と外端部の長さが異なる為、溶融ポリ
マーの拘束力が異なり、従つて糸の形状が変形し
たり、糸が割れたりするものである。 By the way, in order to eliminate the dead point 3 at the bottom of the polymer introduction hole 2, the bottom of the polymer introduction hole 2 is processed into a conical shape as shown in FIGS. 2a and 2b, and then the polymer discharge hole 5 is bored. However, in this case, as shown in FIG. 2b, since the lengths of the central part and the outer end of the polymer discharge hole 5 are different, the restraining force of the molten polymer is different, and the shape of the thread may be deformed. The threads may break.
本発明はかかる諸事情に鑑みなされたものであ
り、糸の形状が変形したり、ばらついたり或いは
糸が割れたりすることの無い紡糸口金を提供せん
とするものである。 The present invention has been made in view of these circumstances, and it is an object of the present invention to provide a spinneret that does not cause the shape of the yarn to deform, vary, or break.
以下本発明による紡糸口金の一実施例を第３図
ａ，ｂによつて説明すると、６はノズルホルダー
で、このノズルホルダー６に一定間隔に多数の透
孔７が穿設され、各透孔７にポリマー導入孔８及
びこれに続いてポリマー吐出孔９が穿設され且つ
ポリマー導入孔８の底が40〜80度の角度で円錐状
に成形された金属製のノズルチツプ１０が装入固
定されて成る。 An embodiment of the spinneret according to the present invention will be described below with reference to FIGS. A polymer introduction hole 8 and a polymer discharge hole 9 are formed in the polymer introduction hole 7, and a metal nozzle tip 10 having a conical shape with the bottom of the polymer introduction hole 8 at an angle of 40 to 80 degrees is inserted and fixed. It consists of
前記ノズルチツプ１０のポリマー吐出孔９は異
形孔であるが例えばＹ形孔の場合、ノズルチツプ
１０の吐出面１１は、第４図の如くＹ形孔の中心
に向つてポリマー導入孔８の底の円錐面と同角度
に円錐状に突出せしめられている。 The polymer discharge hole 9 of the nozzle tip 10 is an irregularly shaped hole, for example, in the case of a Y-shaped hole, the discharge surface 11 of the nozzle tip 10 is shaped like a cone at the bottom of the polymer introduction hole 8 toward the center of the Y-shaped hole as shown in FIG. It projects conically at the same angle as the surface.
前記ノズルチツプ１０の吐出面１１は、第３図
ｂに示す如くノズルホルダー６の先端面６ａより
突出している。 The discharge surface 11 of the nozzle tip 10 protrudes from the tip surface 6a of the nozzle holder 6, as shown in FIG. 3b.
然して本発明の紡糸口金の他の実施例として、
第５図に示す如くノズルホルダー６の各透孔７を
その軸中心線ｌがノズルホルダー６の軸中心線Ｌ
上の一点即ち糸の巻取り点に集中するように穿設
し、この各透孔７のポリマー導入孔８及びこれに
続いてポリマー吐出孔９が穿設され且つポリマー
導入孔８の底が40〜80度の角度で成形された金属
製のノズルチツプ１０を装入固定して成るものが
ある。 However, as another embodiment of the spinneret of the invention,
As shown in FIG. 5, each through hole 7 of the nozzle holder 6 has its axial center line L.
The holes are formed so as to be concentrated at one point on the top, that is, the winding point of the yarn, and the polymer introduction hole 8 of each through hole 7 and the polymer discharge hole 9 are formed following this, and the bottom of the polymer introduction hole 8 is 40 mm. There is one in which a metal nozzle tip 10 formed at an angle of ~80 degrees is inserted and fixed.
この紡糸口金に於いて、ノズルチツプ１０のポ
リマー吐出孔９が異形孔の場合、ノズルチツプ１
０の吐出面１１は図示の如くポリマー導入孔８の
底の円錐面と同角度に円錐状に突出せしめられ
る。 In this spinneret, if the polymer discharge hole 9 of the nozzle chip 10 is an irregularly shaped hole, the nozzle chip 1
As shown in the figure, the discharge surface 11 of 0 is conically protruded at the same angle as the conical surface of the bottom of the polymer introduction hole 8.
またノズルチツプ１０の吐出面１１は、図示の
如くノズルホルダー６の先端面より突出せしめら
れる。 Further, the ejection surface 11 of the nozzle tip 10 is made to protrude from the tip end surface of the nozzle holder 6 as shown in the figure.
本発明の紡糸口金は、上述の如くノズルホルダ
ーの多数の透孔に装入固定されたノズルチツプ１
０のポリマー導入孔８の底が円錐状に成形されて
いるので、特公昭43−11820号公報にみられるご
とく、デツドポイントが無く、従つて紡糸時に溶
融ポリマーがポリマー導入孔８の底に滞留するこ
となく円滑にポリマー吐出孔９に流れて紡糸され
る。また、ノズルチツプ１０の吐出面１１がポリ
マー導入孔８の円錐状の底と同角度に円錐状に突
出せしめられているので、ポリマー吐出孔９の内
壁の長さがどの位置でも等しくなつている。しか
も、溶融ポリマーは異形の周縁部が先に吐出され
て凝固し、異形の中心部が後に吐出されるため、
特公昭43−11820号公報にみられるような、溶融
ポリマーの表面張力による柱状になろうとする作
用力に打ち勝つことができる。従つてポリマー吐
出孔９に於ける溶融ポリマーの拘束力はどの位置
でも等しいので、糸の形状は略均一で、糸が割れ
ることもない。さらに紡糸時に溶融ポリマーがノ
ズルチツプ１０の吐出面１１に決して付着堆積す
ることがないので、糸切れしたり糸同志がくつつ
いたりすることがない。特にノズルチツプ１０が
装入固定された透孔７の軸中心線ｌがノズルホル
ダー６の軸中心線Ｌ上の一点、即ち糸の巻取点に
集中させることにより、ポリマー吐出孔９が糸の
巻取り方向と一致するので、ポリマー吐出孔９の
先端周縁が摩耗することがなく、先端周縁に摩耗
差が生じることがない。従つてポリマー吐出孔９
の変形量は非常に少なく、糸の形状にばらつきが
生じることがない。 As described above, the spinneret of the present invention has a nozzle chip 1 inserted and fixed into a large number of through holes of a nozzle holder.
Since the bottom of the polymer introduction hole 8 of No. 0 is formed into a conical shape, there is no dead point, as seen in Japanese Patent Publication No. 11820/1982, and therefore the molten polymer stays at the bottom of the polymer introduction hole 8 during spinning. The polymer flows smoothly into the polymer discharge hole 9 and is spun. Further, since the discharge surface 11 of the nozzle tip 10 is conically projected at the same angle as the conical bottom of the polymer introduction hole 8, the length of the inner wall of the polymer discharge hole 9 is the same at any position. Moreover, the molten polymer is discharged first at the periphery of the irregular shape and solidified, and the center of the irregular shape is discharged later.
It is possible to overcome the force exerted by the surface tension of the molten polymer, which tends to form a columnar shape, as seen in Japanese Patent Publication No. 43-11820. Therefore, since the restraining force of the molten polymer in the polymer discharge hole 9 is the same at any position, the shape of the thread is substantially uniform, and the thread does not break. Furthermore, since the molten polymer never adheres and accumulates on the discharge surface 11 of the nozzle tip 10 during spinning, the threads do not break or the threads stick together. In particular, by concentrating the axial center line l of the through hole 7 into which the nozzle tip 10 is inserted and fixed at one point on the axial center line L of the nozzle holder 6, that is, the thread winding point, the polymer discharge hole 9 can be Since it coincides with the cutting direction, the peripheral edge of the tip of the polymer discharge hole 9 will not wear out, and no difference in wear will occur on the peripheral edge of the tip. Therefore, the polymer discharge hole 9
The amount of deformation is very small, and there is no variation in the shape of the thread.
以上詳記した通り本発明の紡糸口金によれば、
溶融ポリマーがノズルホルダーに保持されたノズ
ルチツプのポリマー導入孔の底に滞留することな
く円滑にポリマー吐出孔に流れて紡糸される。ま
たその内壁の長さをどの位置でも等しくして溶融
ポリマーの拘束力をポリマー吐出孔のどの位置で
も等しくなるようにしたので、糸の形状が略均一
で糸は割れることがない。さらにノズルチツプの
吐出面をノズルホルダーの先端面より突出させた
ので、ノズルチツプの吐出面に溶融ポリマーが決
して付着堆積しないので、糸切れ、糸同志のくつ
つき等が生じない。さらにまたノズルチツプのポ
リマー吐出孔を糸の巻取り方向に向けることによ
り、いかなる形状のポリマー吐出孔でもその先端
周縁に摩耗差が生じることがないので、ポリマー
吐出孔は全く変形せず、糸形状にばらつきが生じ
ることがない等の優れた効果がある。 As detailed above, according to the spinneret of the present invention,
The molten polymer does not stay at the bottom of the polymer introduction hole of the nozzle chip held in the nozzle holder, but smoothly flows into the polymer discharge hole and is spun. Furthermore, the length of the inner wall is made equal at all positions so that the restraining force of the molten polymer is the same at all positions of the polymer discharge hole, so that the shape of the thread is substantially uniform and the thread does not break. Furthermore, since the ejection surface of the nozzle tip is made to protrude from the tip end surface of the nozzle holder, molten polymer never adheres and accumulates on the ejection surface of the nozzle tip, so that thread breakage, thread sticking together, etc. do not occur. Furthermore, by orienting the polymer discharge hole of the nozzle tip in the winding direction of the thread, no difference in wear occurs around the tip of the polymer discharge hole, no matter what shape it is. It has excellent effects such as no variation.
第１図ａは従来の溶融紡糸用の紡糸口金を示す
要部断面図、同図ｂはその紡糸口金に於ける溶融
ポリマーの滞留状態を示す第１図ａのＡ部拡大断
面図、同図ｃはその紡糸口金に於けるポリマー吐
出孔の先端周縁の摩耗状態を示す拡大断面図、同
図ｄはポリマー吐出孔がＹ形の異形孔の場合の先
端周縁の摩耗部分を示す図、第２図ａは従来の紡
糸口金に於いてポリマー導入孔の底を円錐状に成
形した要部拡大縦断面図、同図ｂは同図ａの紡糸
口金に於けるポリマー吐出孔の形状を示す拡大斜
視図、第３図ａは本発明による紡糸口金の一実施
例を示す平面図、同図ｂは同図ａのＢ−Ｂ線拡大
縦断面図、第４図は本発明の紡糸口金に於けるノ
ズルチツプの紡糸面を円錐状に突出せしめた例を
示す拡大斜視図、第５図は本発明による紡糸口金
の他の実施例を示す拡大縦断面図である。
６……ノズルホルダー、６ａ……ノズルホルダ
ーの先端面、７……透孔、８……ポリマー導入
孔、９……ポリマー吐出孔、１０……ノズルチツ
プ、１１……ノズルチツプの吐出面、Ｌ……ノズ
ルホルダーの軸中心線、ｌ……透孔の軸中心線。
Fig. 1a is a cross-sectional view of the main parts of a conventional spinneret for melt spinning, and Fig. 1b is an enlarged sectional view of part A in Fig. 1a, showing the retention state of molten polymer in the spinneret. c is an enlarged cross-sectional view showing the worn state of the tip periphery of the polymer discharge hole in the spinneret, and d is a diagram showing the worn portion of the tip periphery when the polymer discharge hole is a Y-shaped irregular hole. Figure a is an enlarged vertical cross-sectional view of the main part of a conventional spinneret in which the bottom of the polymer introduction hole is formed into a conical shape, and Figure b is an enlarged perspective view showing the shape of the polymer discharge hole in the spinneret of Figure A. Fig. 3a is a plan view showing an embodiment of the spinneret according to the present invention, Fig. 3b is an enlarged longitudinal sectional view taken along line B-B of Fig. 3a, and Fig. 4 is a plan view showing an embodiment of the spinneret according to the present invention. FIG. 5 is an enlarged perspective view showing an example in which the spinning surface of the nozzle tip is conically protruded, and FIG. 5 is an enlarged longitudinal sectional view showing another embodiment of the spinneret according to the present invention. 6... Nozzle holder, 6a... Tip surface of nozzle holder, 7... Through hole, 8... Polymer introduction hole, 9... Polymer discharge hole, 10... Nozzle chip, 11... Discharge surface of nozzle chip, L... ...Axis center line of nozzle holder, l...Axis center line of through hole.
Claims (1)
が一定間隔に穿設されたノズルホルダーの多数の
透孔に各々装入固定されて成る紡糸口金におい
て、 当該ノズルチツプののポリマー吐出面が当該ノ
ズルホルダーの先端面より突出しており、かつ、
当該円錐状吐出面が異形孔の中心に向かつてポリ
マー導入孔の底の円錐面と同角度で突出している
ことを特徴とする紡糸口金。 ２ ノズルチツプのポリマー吐出孔が糸の巻取り
方向に向けられていることを特徴とする特許請求
の範囲第１項記載の紡糸口金。[Scope of Claims] 1. A spinneret in which irregular shaped metal nozzle tips protruding into a conical shape are inserted and fixed into a number of through holes of a nozzle holder drilled at regular intervals, wherein the nozzle tips discharge polymer. the surface protrudes from the tip surface of the nozzle holder, and
A spinneret characterized in that the conical discharge surface protrudes toward the center of the irregularly shaped hole at the same angle as the conical surface at the bottom of the polymer introduction hole. 2. The spinneret according to claim 1, wherein the polymer discharge hole of the nozzle tip is oriented in the winding direction of the yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14261780A JPS5766109A (en) | 1980-10-13 | 1980-10-13 | Spinneret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14261780A JPS5766109A (en) | 1980-10-13 | 1980-10-13 | Spinneret |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5766109A JPS5766109A (en) | 1982-04-22 |
| JPS6330406B2 true JPS6330406B2 (en) | 1988-06-17 |
Family
ID=15319490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14261780A Granted JPS5766109A (en) | 1980-10-13 | 1980-10-13 | Spinneret |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5766109A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2579294B2 (en) * | 1988-08-23 | 1997-02-05 | 鐘紡株式会社 | Composite fiber spinneret |
| KR100652289B1 (en) * | 2000-02-19 | 2006-11-29 | 주식회사 휴비스 | Polyester filament yarn dyed under normal pressure, method and apparatus for preparation it |
-
1980
- 1980-10-13 JP JP14261780A patent/JPS5766109A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5766109A (en) | 1982-04-22 |
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