JPS60239541A - Necking stabilizer - Google Patents
Necking stabilizerInfo
- Publication number
- JPS60239541A JPS60239541A JP75885A JP75885A JPS60239541A JP S60239541 A JPS60239541 A JP S60239541A JP 75885 A JP75885 A JP 75885A JP 75885 A JP75885 A JP 75885A JP S60239541 A JPS60239541 A JP S60239541A
- Authority
- JP
- Japan
- Prior art keywords
- group
- stretching
- necking
- speed
- rollers
- 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.)
- Pending
Links
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 本発明は熱可塑性樹脂を延伸する装置に関する。[Detailed description of the invention] The present invention relates to an apparatus for stretching thermoplastic resin.
さらに詳しくは延伸時のネッキングを安定化させる装置
に関する。More specifically, the present invention relates to a device for stabilizing necking during stretching.
従来、熱可塑性樹脂を延伸する場合は、通常、中や空冷
紡糸筒を通過させ、あるいは必要に応じて処理浴を用い
て固化させ、原反又は原糸を作りこれを使用樹脂により
最適な湿度で、第10−ラ一群と第20−ラ一群の周速
度の差をもって延伸される。延伸域としては、〜式槽が
多く用いられるが、他に加圧水蒸気槽、熱風槽、熱媒浴
、熱板等が使用される。これらのいずれの場合も、通常
延伸域内でネッキングが発生ずるが、ネッキング点は第
20−ラ一群に近づけば近づく程、延伸が安定化−りる
。しかし、従来の装置では、生産速度を上げたり、ある
いは延伸倍率を上げたり、あるいは原反又は原糸の降伏
強度が低下したりづると、このネッキング点が徐々に第
10−ラ一群に近づき、フリーロールやガイドロールを
乗り越えて、延伸域外に出、これが原因で、製品の白化
や、延伸切れが多発するという大きな欠点があった。Conventionally, when drawing a thermoplastic resin, it is usually passed through an air-cooled spinning tube or, if necessary, solidified using a treatment bath to create a raw fabric or yarn, which is then heated at the optimum humidity depending on the resin used. Then, the sheet is stretched with a difference in peripheral speed between the 10th group of rollers and the 20th group of rollers. As the stretching region, a ~ type tank is often used, but a pressurized steam tank, a hot air tank, a heat medium bath, a hot plate, etc. are also used. In any of these cases, necking usually occurs within the stretching region, but the closer the necking point is to the 20th group, the more stable the stretching becomes. However, in conventional equipment, when the production speed is increased, the stretching ratio is increased, or the yield strength of the raw fabric or yarn is decreased, this necking point gradually approaches the 10th group. The major disadvantage is that the product passes over the free rolls and guide rolls and exits the stretching area, resulting in whitening of the product and frequent occurrence of stretching breakage.
本発明は、前記の欠点を克服するため鋭意検約した結果
、なされたものであり、図面にもとづいで説明すると、
第1図に示づような熱可塑性樹脂延伸する装置において
フリーロールエ3にかえて第2図に示すように第10−
ラ一群の後に速度制御可能な駆動ロール3′を取付けた
ネッキング安定化装置である。The present invention was made as a result of diligent research to overcome the above-mentioned drawbacks, and will be explained based on the drawings.
In the apparatus for stretching thermoplastic resin as shown in FIG. 1, a 10-
This is a necking stabilizing device in which a drive roll 3' whose speed can be controlled is attached after a group of rollers.
本発明の駆動ロールの使用方法は、例えば、第10−ラ
一群と第20−ラ一群間で延伸覆る際、ネッキング点が
徐々に第10−ラ一群に近づき、最終的には延伸域外に
出る様な場合、第10−ラ一群の周速度とほぼ同じ周速
度に速度制御可能な駆動ロールを、延伸域直前に取(=
lけることによって、ネッキング点が延伸域内に入り、
安定化させることができる。例えば第10−ラ一群、駆
動ロールの各周速度を■ 、■ とするとvl〈2
V<1.05V となるようにV2の周速度を制2制
御することによって、本発明の目的を達成することがで
きる。The method of using the drive roll of the present invention is such that, for example, when stretching is carried out between a group of 10th rollers and a group of 20th rollers, the necking point gradually approaches the group of 10th rollers and eventually moves out of the stretching region. In such cases, a drive roll whose speed can be controlled to approximately the same peripheral speed as that of the 10th group of rollers is installed just before the stretching zone (=
By bending, the necking point enters the stretching zone,
It can be stabilized. For example, if the circumferential speeds of the drive rolls of the 10th roller group are 1 and 2, the object of the present invention is achieved by controlling the circumferential speed of V2 so that vl<2 V<1.05V. be able to.
駆動ロール3′の取付位置は、第10−ラ一群と延伸域
との間(ガイドロールを介しても介さなくてもいずれで
もよい)に設けられる。特に、湿式槽では、駆動ロール
3′の一部が、渇水下であることが好ましい。駆動ロー
ル3′の大きさは任意で良いが、作業性、コストの点で
゛50φ〜200φ厚程疫が適当である。駆動ロール3
′の駆動方法はベルト、タイミングベルト、チェーン、
ギア等いずれの方式でも良い。又、速度制御方法も、通
常の減速$1設置で十分である。The drive roll 3' is installed between the group of tenth rollers and the stretching area (with or without a guide roll). In particular, in a wet tank, it is preferable that a portion of the drive roll 3' is under drought. The drive roll 3' may have any size, but from the viewpoint of workability and cost, a thickness of 50 to 200 mm is appropriate. Drive roll 3
’ drive method is belt, timing belt, chain,
Any method such as gears may be used. Also, as for the speed control method, it is sufficient to install a normal deceleration of $1.
第3図は、速度制御可能な駆動ロール3′に、押えロー
ル3″を取付けたネッキング安定化装置の実施態様を示
すもので、熱可塑性樹脂の原反10が、フィラメントの
様な細ものである場合に、駆動ロールでのスリップが軽
減され有効である。FIG. 3 shows an embodiment of a necking stabilizing device in which a pressure roll 3'' is attached to a drive roll 3' whose speed can be controlled. In some cases, it is useful to reduce slip on the drive rolls.
この発明は、ネッキング点が延伸域外に出ることを抑制
し、製品の白化防止や、延伸切れを激減させるなど、数
々の効果がある。This invention has a number of effects, such as suppressing the necking point from going outside the stretching area, preventing whitening of the product, and drastically reducing stretching breakage.
次に実施例及び比較例をあげ本発明の詳細な説明する。Next, the present invention will be explained in detail with reference to Examples and Comparative Examples.
実施例1〜3 比較例1〜2
第1表に示す樹脂を以下に示J”条件で溶融追出し水冷
成形延伸性を調べた。その結果を第1表に示す。Examples 1 to 3 Comparative Examples 1 to 2 The resins shown in Table 1 were melted and expelled under the J'' conditions shown below, and the water-cooling molding ductility was examined. The results are shown in Table 1.
押 出 機 40mmφ L/D= 24スクリユウ
圧縮比32
ブレーカ−プレート2.Oφ×8611スクリーンパッ
ク 80,100,150゜150.100メツシユ
ノズルホール数 40本取り
押出II温度 CI C2C3DI D2(℃) 16
0 250 270 260 、270エアギ11ツブ
5 ts
第 1 表
実施例1 実施例2 実施例3 比較例1 比較例2使
用tMFo Ll−DPE tl[lP[■0P[/”
LLDPE HDPE=30/70
第1D−ク一群 12 16.7 8 10 12.5
速度v+ (TrL/m1n)
中間駆動1−ル 12.1 1&、9 8.2 無 無
速度V2 (7FL/m1n)
第2°−ク一群 120 200 80 100 15
0速度V3 (711/m1n)
比較例1は、LLDI)E (M I = o、8g/
l 0分)を従来装置(フリー[コールあり)で10倍
延伸するとネッキングポイントが延伸槽外となり、延伸
は可能であったが、得られたフィラメント(よ白濁状態
で強度が低いしのであった。又比較例2は、HDP[(
M I = 0.5g/l 0分)を従来装置(フリー
ロールあり)で高速高延伸り−ると糸切れが多発し事実
上延伸はできなかった。−・h実施例1〜3においては
、延伸性、製品とし問題な(Xフィラメントが得られた
。Extruder 40mmφ L/D=24 screws
Compression ratio 32 Breaker plate 2. Oφ×8611 Screen pack 80,100,150°150.100 Number of mesh nozzle holes 40 Extrusion II temperature CI C2C3DI D2 (℃) 16
0 250 270 260, 270 air gear 11 tubes 5 ts Table 1 Example 1 Example 2 Example 3 Comparative example 1 Comparative example 2 used tMFo Ll-DPE tl[lP[■0P[/”
LLDPE HDPE=30/70 1st D-ku group 12 16.7 8 10 12.5
Speed v+ (TrL/m1n) Intermediate drive 1-rule 12.1 1 &, 9 8.2 None No speed V2 (7FL/m1n) 2nd degree-1 group 120 200 80 100 15
0 speed V3 (711/m1n) Comparative example 1 is LLDI)E (M I = o, 8g/m1n)
When a filament (10 minutes) was stretched 10 times using a conventional device (free [with coal]), the necking point was outside the stretching tank, and stretching was possible, but the resulting filament was cloudy and had low strength. .Also, in Comparative Example 2, HDP[(
When M I = 0.5 g/l 0 min) was stretched at high speed using a conventional device (with free roll), thread breakage occurred frequently and stretching was virtually impossible. -.h In Examples 1 to 3, (X filaments were obtained that were problematic in terms of stretchability and product quality.
第′1図は、熱可塑性樹脂を第10−ラーn′jと第2
0−ラ一群間で延伸する装置の縦断面図、第2図、第3
図は駆動ロール取付の実施態層策を示す縦断面図である
。
1・・・第10−ラ一群 2・・・ガイトロール3・・
・フリーロールT 3’ ・・・駆動ロール3″・・・
押えロール 4・・・延伸域10・・・熱可塑性樹脂の
原反
11・・・延伸糸
特許出願人 昭和電工株式会社
代 理 人 弁理士 菊 地 精Figure '1 shows thermoplastic resin in the 10th layer n'j and the 2nd layer.
Longitudinal cross-sectional view of the device for stretching between 0-ra groups, Figures 2 and 3
The figure is a longitudinal cross-sectional view showing an embodiment of the mounting of the drive roll. 1...10th-Ra group 2...Gaitrol 3...
・Free roll T 3'... Drive roll 3''...
Presser roll 4...Stretching zone 10...Material fabric of thermoplastic resin 11...Drawn yarn Patent applicant Showa Denko K.K. Representative Patent attorney Sei Kikuchi
Claims (1)
間で延伸づる装置において、延伸域直前に、第10−ラ
一群の周速度とほぼ同じ周速度に速度制御可能な駆動ロ
ールを取付けたネッキング安定化装置。 2、 第10−ラ一群の周速度とほぼ同じ周速度に速度
制御可能な駆動ロールに、押えロールを取付けた特許請
求の範囲第1項記載のネッキング安定化装置。[Claims] 1. In an apparatus for stretching a thermoplastic resin between a group of 10th-ra and a group of 20-ra, the circumferential speed is increased to approximately the same peripheral speed as that of the 10th-ra group immediately before the stretching zone. Necking stabilizer with controllable drive rolls. 2. The necking stabilizing device according to claim 1, wherein a presser roll is attached to a drive roll whose speed can be controlled to a peripheral speed that is approximately the same as the peripheral speed of the 10th group of rollers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP75885A JPS60239541A (en) | 1985-01-09 | 1985-01-09 | Necking stabilizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP75885A JPS60239541A (en) | 1985-01-09 | 1985-01-09 | Necking stabilizer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60239541A true JPS60239541A (en) | 1985-11-28 |
Family
ID=11482589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP75885A Pending JPS60239541A (en) | 1985-01-09 | 1985-01-09 | Necking stabilizer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60239541A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994015007A1 (en) * | 1992-09-21 | 1994-07-07 | Puget Sound Rope Corporation | Method and apparatus for heat stretching synthetic fiber rope |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4912112A (en) * | 1972-05-12 | 1974-02-02 | ||
JPS5679734A (en) * | 1979-11-22 | 1981-06-30 | Toray Industries | Production of fiber package |
-
1985
- 1985-01-09 JP JP75885A patent/JPS60239541A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4912112A (en) * | 1972-05-12 | 1974-02-02 | ||
JPS5679734A (en) * | 1979-11-22 | 1981-06-30 | Toray Industries | Production of fiber package |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5351373A (en) * | 1992-07-29 | 1994-10-04 | Puget Sound Rope Corporation | Method and apparatus for heat stretching synthetic fiber rope |
WO1994015007A1 (en) * | 1992-09-21 | 1994-07-07 | Puget Sound Rope Corporation | Method and apparatus for heat stretching synthetic fiber rope |
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