JP3237183B2 - Extrusion equipment for deformed wire - Google Patents
Extrusion equipment for deformed wireInfo
- Publication number
- JP3237183B2 JP3237183B2 JP10381292A JP10381292A JP3237183B2 JP 3237183 B2 JP3237183 B2 JP 3237183B2 JP 10381292 A JP10381292 A JP 10381292A JP 10381292 A JP10381292 A JP 10381292A JP 3237183 B2 JP3237183 B2 JP 3237183B2
- Authority
- JP
- Japan
- Prior art keywords
- constant temperature
- wire
- air
- deformed wire
- cooling
- 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 - Fee Related
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、テープスロット型光ケ
ーブルにおいて、光ファイバを挿入するための異形溝を
持つ熱可塑性樹脂製のスロットロッド（溝付線材）など
を製造するのに適する装置の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a tape slot type optical cable suitable for manufacturing a slot rod (grooved wire) made of a thermoplastic resin having an irregular groove for inserting an optical fiber. It is about.
【０００２】[0002]
【従来の技術】従来、テープスロット型光ケーブルにお
いて、光ファイバを挿入するために、異形溝を持つ熱可
塑性樹脂製のスロットロッド（溝付線材）が使用されて
いる。このスロットロッドイ、例えば図３に示されるよ
うに、単線又は撚線からなる鋼線ロを芯線とし、その表
面に押出被覆により一般に異形状をした被覆熱可塑性樹
脂ハが設けられ、従って、その外面にはらせん状等の異
形溝ニが形成されており、その溝ニに光ファイバが添え
られた構造をしている。2. Description of the Related Art Conventionally, in a tape slot type optical cable, a slot rod (grooved wire) made of a thermoplastic resin having a deformed groove is used for inserting an optical fiber. As shown in FIG. 3, for example, as shown in FIG. 3, a steel wire rod made of a single wire or a stranded wire is used as a core wire, and the surface thereof is provided with a coated thermoplastic resin generally having an irregular shape by extrusion coating. A spiral groove or the like is formed on the outer surface, and an optical fiber is attached to the groove.
【０００３】従来、このスロットロッドイを製造するに
は、例えば、図１に示された押出成形装置を用いて、給
線機２から繰り出された鋼線ロなどからなる線材１０が
クロスヘッド４を備えた押出（被覆）機３に通され、そ
の線材１０の周りに溶融状の熱可塑性樹脂ハがクロスヘ
ッド４に供給されて押出被覆され、ダイ９を通って異形
線材１１が成形されるのが普通である。Conventionally, in order to manufacture this slot rod, a wire rod 10 made of a steel wire drawn out of a feeder 2 is used to form a crosshead 4 using, for example, an extrusion molding apparatus shown in FIG. Is passed through an extruder (coating) machine 3 provided with a resin, and a molten thermoplastic resin C is supplied to a crosshead 4 around the wire 10 to be extrusion-coated, and a deformed wire 11 is formed through a die 9. Is common.
【０００４】次いで、加熱溶融状の異形線材１１は、自
然空気冷却、温水徐冷、水冷等のいずれかの組合せで冷
却することにより製品としていたので、必要な形状のス
ロットロッドを安定して得るためには、低線速で製造し
ていた。[0004] Next, the heat-melted deformed wire 11 is made into a product by being cooled by any combination of natural air cooling, hot water gradual cooling, water cooling and the like, so that a slot rod of a required shape can be stably obtained. In order to produce at a low linear speed.
【０００５】[0005]
【発明が解決しようとする課題】これは、冷却媒体によ
る溶融状樹脂の熱収縮率が線材等と異なるため、熱収縮
を安定となるまでの冷却時間を短くすることによる剥離
や脹れ等のトラブルを避けるためであり、熱収縮が安定
するまでの時間を短くすることが、高速化操業にとって
重要な課題であった。This is because the heat shrinkage rate of the molten resin by the cooling medium is different from that of the wire material, and thus the shortening of the cooling time until the heat shrinkage becomes stable causes peeling and swelling. In order to avoid trouble, shortening the time until the heat shrinkage was stabilized was an important issue for high-speed operation.
【０００６】また、従来法のように、例えば自然空気冷
却の温度は、夏、冬及び朝、昼、夜で異なり、異形線材
は常に安定して製造することが非常に難しいと言う課題
があった。本発明の目的は、スロットロッドのような異
形線材の押出成形に当たり、その冷却媒体を用いる冷却
による熱収縮の安定するまでの時間を短縮して、高速操
業を可能とすることである。Further, as in the conventional method, for example, the temperature of natural air cooling differs between summer, winter and morning, daytime and nighttime, and there is a problem that it is very difficult to always produce a deformed wire stably. Was. An object of the present invention is to shorten the time required for stabilizing heat shrinkage by cooling using a cooling medium in extruding a shaped wire such as a slot rod, thereby enabling high-speed operation.
【０００７】[0007]
【課題を解決するための手段】すなわち、本発明は：
異形線材の押出成形装置において、線材上に溶融樹脂
を押出・被覆した直後に該溶融樹脂を冷却するために、
押出（被覆）成形機に続いて、複数個の送風穴付きの中
空管を内部に持つ強制恒温空冷装置が設置されており、
しかも、一定温度に保たれた恒温圧縮空気が送風穴を介
して押出・被覆された異形線材に強風で吹き付けられ、
かつ該装置内の温度が上記恒温圧縮空気と同一温度に保
たれているように、恒温空気を該装置内に供給すること
を特徴とする、異形線材の押出成形装置を提供する。That is, the present invention provides:
In the extrusion device of the deformed wire, in order to cool the molten resin immediately after extruding and coating the molten resin on the wire,
Following the extrusion (coating) molding machine, the inside with multiple ventilation holes
A forced constant temperature air cooling device with an empty tube inside is installed,
In addition, constant temperature compressed air maintained at a constant temperature is blown by a strong wind onto the extruded and covered deformed wire rod through the ventilation holes,
And as the temperature within the apparatus is kept on SL thermostatic compressed air and the same temperature, characterized in that for supplying the constant temperature air within the device, to provide an extrusion molding apparatus of the profile wire.
【０００８】以下、本発明を図面に基づいて詳細に説明
する。図１は、本発明の一つの具体例であり、異形線材
１１の押出成形装置１の構成を示す。押出成形装置１
に、給線機２より鋼材（単線又は撚線等）のような線材
１０を供給し、該線材１０の外表面に押出（被覆）機３
で溶融熱可塑性樹脂樹脂をクロスヘッド４を介して押出
被覆し、例えばらせん状等の異形状をしたダイ９を通っ
て異形線材１１を製造する。Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a specific example of the present invention, and shows a configuration of an extrusion molding device 1 for a deformed wire 11. Extrusion molding equipment 1
, A wire 10 such as a steel material (a single wire or a stranded wire) is supplied from a wire feeder 2, and an extruding (coating) machine 3 is applied to an outer surface of the wire 10.
Then, the molten thermoplastic resin is extrusion-coated through the crosshead 4, and the deformed wire 11 is manufactured through a die 9 having a different shape such as a spiral shape.
【０００９】成形された溶融状態の熱可塑性樹脂被覆を
持つ異形線材１１は、クロスヘッド４の直後に配置され
た強制恒温空冷装置５で冷却されて熱収縮が安定した後
に、水冷装置６で常温に冷却し、引取機７で引取り、巻
取機８でドラム（図示されていない）に巻き取られるの
である。本発明の場合、下記の特定の強制恒温空冷装置
５を用いることが重要である。即ち、該強制恒温空冷装
置５の構造は、具体的には以下の構成のものであるが、
異形線材の熱収縮の安定化が達成されるなら、或る程度
の変形・変化も可能である。The shaped wire 11 having the thermoplastic resin coating in a molten state is cooled by a forced constant-temperature air cooling device 5 disposed immediately after the crosshead 4 to stabilize heat shrinkage. Then, it is taken up by a take-up machine 7 and taken up by a drum (not shown) by a take-up machine 8. In the case of the present invention, it is important to use the specific forced constant temperature air cooling device 5 described below. That is, the structure of the forced constant-temperature air-cooling device 5 is specifically of the following configuration.
If the stabilization of the heat shrinkage of the deformed wire is achieved, a certain degree of deformation and change is possible.
【００１０】まず、冷水タンク１４内の冷水１５をポン
プＡ１６で冷凍機１７内に循環させて一定温度の冷水１
５を作る。その冷水１５をポンプＢ１８で、例えばフィ
ン付き配管のあるエアークーラー１９内に循環させ、該
エアークーラー１９に送風機２０で空気を送り込んで空
気を冷却した後、ヒーター２０で該空気を加熱し一定温
度に温調した恒温空気を得、該恒温空気２６を送風管Ａ
２５により強制恒温空冷装置５の恒温箱１２に送り込
み、該恒温箱１２内を一定温度に保つ。これが、本発明
における第１系統の冷却系である。一方、圧縮空気製造
装置２１で製造された恒温圧縮空気２７は、冷凍機２２
で一定温度に冷却された後、ヒーター２３で加熱されて
一定温度に温調された恒温圧縮空気２７となる。これ
が、本発明における第２系統の冷却系である。 First, the chilled water 15 in the chilled water tank 14 is circulated into the refrigerator 17 by the pump A 16 so that the chilled water
Make 5. The cold water 15 is circulated by, for example, an air cooler 19 having a finned pipe by a pump B18, and air is blown into the air cooler 19 by a blower 20 to cool the air. give the temperature control with constant temperature air, blower tube a the constant temperature air 26
25 and sent to the constant temperature box 12 of the forced constant temperature air cooling device 5
In this case, the inside of the thermostat box 12 is kept at a constant temperature . This is the present invention
Is the first cooling system. On the other hand, the constant temperature compressed air 27 produced by the compressed air producing device 21 is supplied to the refrigerator 22
After being cooled to a constant temperature, the air is heated by the heater 23 to become the constant temperature compressed air 27 whose temperature is controlled to a constant temperature. this
Is a second cooling system in the present invention.
【００１１】即ち、該恒温圧縮空気２７を送風管Ｂ２
５’を介して、上記恒温箱１２内に複数個並べた中空管
２４中の送風穴１３に強風で吹き付け状に供給し、恒温
箱１２内の該恒温空気２６と一緒にされ冷却能力を増幅
させて、該恒温圧縮空気２７と同一温度に保たれている
強制恒温空冷装置５内の中空管２４中を導出する異形線
材１１を冷却するのに、上記２つの系統の冷却系を用い
るのである。以上の通り、本発明においては、上記２系
統の冷却系による相乗作用で冷却効率の向上を図る点に
特徴がある。 That is, the constant temperature compressed air 27 is supplied to the blower tube B2.
5 through the 'hollow tube arranged several double in the constant temperature box 12
Supplied to form blown with strong wind blowing hole 13 in 24, a thermostat
It is combined with the constant temperature air 26 in the box 12 to amplify the cooling capacity and is kept at the same temperature as the constant temperature compressed air 27.
The cooling system of the above two systems is used to cool the deformed wire rod 11 leading out of the hollow tube 24 in the forced thermostatic air cooling device 5 . As described above, in the present invention, the two systems
To improve the cooling efficiency by synergistic effect of the conventional cooling system
There are features .
【００１２】[0012]
【作用】上記のように構成された異形線材の押出成形装
置は、異形線材を押出成形した直後の溶融状態の樹脂を
一定温度の恒温空気２６で冷却することができたので
（第１系統の冷却系）、周囲の環境温度に左右されるこ
となく、溶融した樹脂を一定に且つ均質に熱収縮するこ
とができ、即ち一定の断面形状の異形線材を容易に効率
よく得ることができる。また、同時に特定の強制恒温空
冷装置５で製造された恒温圧縮空気２７を、該装置５内
の中空管２４内の送風穴１３に強風で吹き付けられ（第
２系統の冷却系）、該恒温圧縮空気２７が恒温箱１２内
の中空管２４中の恒温空気２６と一緒にされ冷却能力を
増幅させて、該恒温圧縮空気２７と同一温度に保たれて
いる強制恒温空冷装置５内の中空管２４中を導出する異
形線材１１からの熱吸収量が増え、冷却能率が向上し、
即ち、冷却能力が増加されるのである（即ち、２系統の
冷却系による相乗作用で冷却効率の向上が図れる）。The apparatus for extruding a deformed wire having the above-described configuration is capable of forming a molten resin immediately after extrusion of the deformed wire.
Because it was able to cool with constant temperature air 26 of constant temperature
(Cooling system of the first system) The molten resin can be thermally shrunk uniformly and uniformly without being affected by the surrounding environmental temperature, that is, a deformed wire having a constant cross-sectional shape can be easily and efficiently obtained. be able to. Also, at the same time a certain forced constant temperature air
The constant temperature compressed air 27 produced by the cooling device 5 is
Is blown into the blow hole 13 in the hollow tube 24 with strong wind (No.
Two systems of the cooling system),該恒temperature compressed air 27 is thermostatic box 12
Together with the constant temperature air 26 in the hollow tube 24
Amplified and kept at the same temperature as the constant temperature compressed air 27
The amount of heat absorbed from the deformed wire 11 leading out of the hollow tube 24 in the forced constant temperature air cooling device 5 is increased, the cooling efficiency is improved,
That is, the cooling capacity is increased (that is, the two systems
Cooling efficiency can be improved by the synergistic action of the cooling system ).
【００１３】[0013]
【発明の効果】以上説明したように、本発明による強制
恒温空冷装置５を有する異形線材の押出成形装置は、周
囲の環境温度に左右されることがなく、２系統の冷却系
による相乗的な冷却作用が期待できて、溶融押出された
異形線材の被覆樹脂の短期で安定した熱収縮が得られ、
従って、安定した異形線材を得ることができる。また、
このように冷却能力が向上したため、高線速でも安定し
た異形線材を得ることができて効果的である。As described above, the extruder for forming a deformed wire having the forced constant-temperature air-cooling device 5 according to the present invention does not depend on the surrounding environmental temperature, and has two cooling systems.
Can be expected to have a synergistic cooling action by
Short-term stable heat shrinkage of the coating resin of the deformed wire is obtained ,
Therefore, a stable deformed wire can be obtained. Also,
Since the cooling capacity is improved as described above, it is possible to obtain a stable deformed wire even at a high linear velocity, which is effective.
【図１】本発明の異形線材の押出成形装置の概要を示す
模式図である。FIG. 1 is a schematic view showing an outline of an apparatus for extruding a shaped wire according to the present invention.
【図２】本発明の異形線材の押出成形装置に押出被覆機
に隣接して設けられた強制恒温空冷装置のシステム図を
示す。FIG. 2 is a system diagram of a forced constant-temperature air cooling device provided adjacent to an extrusion coating machine in the extrusion molding apparatus for a shaped wire according to the present invention.
【図３】本発明の異形線材の一例を示す断面図である。FIG. 3 is a cross-sectional view showing an example of the deformed wire of the present invention.
１ 押出成形装置 ２ 給線機 ３ 押出（被覆）機 ４ クロスヘッド ５ 強制恒温空冷装置 ６ 水冷装置 ７ 引取機 ８ 巻取機 ９ ダイ １０ 線材 １１ 異形線材 １２ 恒温箱 １３ 送風穴 １４ 冷水タンク １５ 冷水 １６ ポンプＡ １７ 冷凍機 １８ ポンプＢ １９ エアークーラー ２０ ヒーター ２１ 圧縮空気製造装置 ２２ 冷凍機 ２３ ヒーター２４ 中空管 ２５ 送風管Ａ ２５’送風管Ｂ ２６ 恒温空気 ２７ 恒温圧縮空気 DESCRIPTION OF SYMBOLS 1 Extrusion molding apparatus 2 Feeder 3 Extrusion (coating) machine 4 Crosshead 5 Forced constant temperature air cooling device 6 Water cooling device 7 Take-up machine 8 Winding machine 9 Die 10 Wire rod 11 Deformed wire rod 12 Constant temperature box 13 Blow hole 14 Cold water tank 15 Cold water 16 Pump A 17 Refrigerator 18 Pump B 19 Air cooler 20 Heater 21 Compressed air production device 22 Refrigerator 23 Heater 24 Hollow tube 25 Blow tube A 25 'Blow tube B 26 Constant temperature air 27 Constant temperature compressed air
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 47/00 - 47/96 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) B29C 47/00-47/96
Claims (1)
上に溶融樹脂を押出・被覆した直後に該溶融樹脂を冷却
するために、押出（被覆）成形機に続いて、複数個の送
風穴付きの中空管を内部に持つ強制恒温空冷装置が設置
されており、しかも、一定温度に保たれた恒温圧縮空気
が送風穴を介して押出・被覆された異形線材に強風で吹
き付けられ、かつ該装置内の温度が、上記恒温圧縮空気
と同一温度に保たれているように、恒温空気を該装置内
に供給することを特徴とする、異形線材の押出成形装
置。An extruder for forming a deformed wire rod has a plurality of blow holes following an extrusion (coating) molding machine in order to cool the molten resin immediately after extruding and coating the molten resin on the wire rod. A forced constant temperature air cooling device having a hollow tube inside is installed, and furthermore, constant temperature compressed air maintained at a constant temperature is blown by a strong wind onto the extruded and coated deformed wire rod through a blowing hole, and temperature in the apparatus, as is maintained in the constant temperature compressed air and the same temperature, within the device thermostatic air
An extruder for extruding a deformed wire, characterized in that it is supplied to
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10381292A JP3237183B2 (en) | 1992-03-31 | 1992-03-31 | Extrusion equipment for deformed wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10381292A JP3237183B2 (en) | 1992-03-31 | 1992-03-31 | Extrusion equipment for deformed wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05278096A JPH05278096A (en) | 1993-10-26 |
| JP3237183B2 true JP3237183B2 (en) | 2001-12-10 |
Family
ID=14363820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10381292A Expired - Fee Related JP3237183B2 (en) | 1992-03-31 | 1992-03-31 | Extrusion equipment for deformed wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3237183B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102232353B1 (en) * | 2020-01-10 | 2021-03-25 | 김제민 | Extruder to select cooling type |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3398954B2 (en) | 1999-03-23 | 2003-04-21 | 住友電気工業株式会社 | Manufacturing method of synthetic resin wire |
| CN114721101B (en) * | 2022-02-25 | 2024-05-14 | 江苏俊知光电通信有限公司 | Layer-twisted optical cable and preparation method thereof |
-
1992
- 1992-03-31 JP JP10381292A patent/JP3237183B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102232353B1 (en) * | 2020-01-10 | 2021-03-25 | 김제민 | Extruder to select cooling type |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05278096A (en) | 1993-10-26 |
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