JPS60110422A - Crosshead for coating filament article - Google Patents

Crosshead for coating filament article

Info

Publication number
JPS60110422A
JPS60110422A JP58219119A JP21911983A JPS60110422A JP S60110422 A JPS60110422 A JP S60110422A JP 58219119 A JP58219119 A JP 58219119A JP 21911983 A JP21911983 A JP 21911983A JP S60110422 A JPS60110422 A JP S60110422A
Authority
JP
Japan
Prior art keywords
nipple
coating
die
crosshead
type coating
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
Application number
JP58219119A
Other languages
Japanese (ja)
Inventor
Yoshio Ikegami
池上　喜雄
Shiro Kishi
岸　史郎
Tadashi Takashita
高下　正
Toshiaki Akita
秋田　敏明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP58219119A priority Critical patent/JPS60110422A/en
Publication of JPS60110422A publication Critical patent/JPS60110422A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • B29C48/48—Two or more rams or pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)

Abstract

PURPOSE:To obtain reliably and easily the most suitable coating contents according to an aim and a condition by making change of pipe die type coating with pressure die type coating possible, by providing a nipple and a die in a relatively movable state along an extrusion center line. CONSTITUTION:When a cartridge 9 is made to retreat by actuating an actuator 23 through a slide 22 and set at a position wherein the tip of a nipple 5 is flush with a front end face of a die 8 or protruded ahead of the front end face, a crosshead is turned into a pipe die type coating structure. Pipe die type coating is performed during a period wherein defective resin is extruded and shifted to a highly accurate coating work through a pressure die type coating after discharge of the defective resin. In other words, the cartridge 9 is made to advance by actuating the actuator 23 and moved up to a position wherein the tip of the nipple 5 is flush with a front end of a nozzle part in a nipple holder support 7 or protruded a little.

Description

【発明の詳細な説明】 本発明は、各種線条物に合成樹脂その他の被覆材料を被
覆させるためのクロスヘッドトシテ、パイプダイ式被覆
およびプレッシャダイ式被覆の両者が切換自在に得られ
るようにしたものの提供に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is capable of freely switching between crosshead coating, pipe die coating, and pressure die coating for coating various filaments with synthetic resin or other coating materials. Regarding the provision of goods.

周知のように、押出機より供給される合成樹脂その他の
被覆材料を、電線その他の線条物素線の陽　２ 外周に被覆させて被覆線条物を得るに当り、ニップルと
ダイスとから成るクロスヘッドを用いるのであるが、こ
のクロスヘッドには２つの型式がある。即ちその１つは
パイプダイ式と呼ばれるもの、で、他の１つはプレッシ
ャダイ式と呼ばれるものである。既知のようにパイプダ
イ式においては、ニップルの先端（線状物の出口）がダ
イスの前端面（被覆材の押出し出口）と同一、あるいは
前端面から若干突出された位置とされ、このため被覆材
はパイプ状に押出されて線条物を被覆するのである。こ
の型式においては素条物に対し、無理な力を加えること
なく被覆できるという長所があるが、問題点としては、
線条物の線振れによって被覆材が破れたり、被覆の肉厚
ムラ、偏肉を生じ易く、被覆精度の低い点であり、比較
的薄肉の被覆を施すものにあっては、上記の問題点は致
命的である。一方プレツシャダイ式においては、ニップ
ルの先端（線状物の出口）がダイスの前端面（被覆材の
押出し出口）よりも内部に引き込まれ、ニップルホルダ
サポートの先端と同一面、あるいは隘３ これより若干突出した位置とされ、このため被覆材はパ
イプ状に押出されると同時に素線物に圧着１．うわ、−
１６゜。。ワ、えおい、１、ゆ。As is well known, when a synthetic resin or other coating material supplied from an extruder is coated on the outer periphery of an electric wire or other filament to obtain a coated filament, a material consisting of a nipple and a die is used. A crosshead is used, and there are two types of crossheads. That is, one of them is called a pipe die type, and the other one is called a pressure die type. As is known, in the pipe die type, the tip of the nipple (outlet of the linear material) is located at the same position as the front end face of the die (extrusion exit of the coating material), or at a position slightly protruding from the front end face, so that the sheathing material is extruded into a pipe shape to cover the filament. This type has the advantage of being able to coat the raw material without applying excessive force, but the problem is that
The sheathing material tends to be torn due to the run-out of the filament, and unevenness in the thickness of the sheathing is likely to occur, resulting in low coating accuracy.In the case of relatively thin-walled sheathing, the above-mentioned problems tend to occur. is deadly. On the other hand, in the press die type, the tip of the nipple (the exit of the linear material) is drawn inward from the front end surface of the die (the exit of the extrusion material), and is flush with the tip of the nipple holder support, or slightly further than this. Therefore, the covering material is extruded into a pipe shape and simultaneously crimped onto the wire.1. Wow, -
16°. . Wa, oi, 1, yu.

精度が良いという長所があるが、問題点としては被覆開
始時、クロスヘッド内および押出機内に滞留していた不
良樹脂、例えば過発泡樹脂や運転休止中に架橋した樹脂
がダイス出口部で詰まり、これに線条物素線が抱かれる
状態となって、素線に対する被覆抵抗が増大するため円
滑な被覆被運転が不可能となる場合があるということで
ある。特に被覆材料として熱安定性の悪い合成樹脂を用
い比較的引張り強度の低い線条物に被覆を施すさい、運
転中に断線が生ずる等の大きなトラブルの原因となり、
これを防ぐためには、運転休止中の樹脂の劣化現象を無
くすために押出機におけるシリンダ設定温度やクロスヘ
ッドの設定温度を低げる等の、面倒な保守管理が必要と
なる。Although it has the advantage of high accuracy, the problem is that when coating starts, defective resin that has accumulated in the crosshead and extruder, such as over-foamed resin or resin that has been crosslinked during shutdown, can clog the die outlet. This means that the filament strands become wrapped around the strands, and the coating resistance against the strands increases, making it impossible to operate the coating smoothly. In particular, when coating a filament with relatively low tensile strength using a synthetic resin with poor thermal stability as a coating material, it can cause major problems such as wire breakage during operation.
In order to prevent this, troublesome maintenance management is required, such as lowering the set temperature of the cylinder and the set temperature of the crosshead in the extruder in order to eliminate the phenomenon of resin deterioration during suspension of operation.

本発明は、上記のような線条物被覆用クロスヘッドにお
ける従来技術の問題点を解決するためになされたもので
あって、従ってその特徴とする処特開昭ＧＯ−１１０４
２２（２） は、押出中心線に沿って線条物を通過させるニップル、
該ニップルと同心に設けられかつ前記線条物に被覆材料
を押出被覆するダイスとから成るクロスヘッドにおいて
、前記ニップルおよびダイスが押出中心線に沿って相対
移動自在に設けられることによって、パイプダイ式被覆
とプレッシャダイ式被覆の何れにも切換可能とされた点
にある。The present invention has been made in order to solve the problems of the prior art in the crosshead for covering filamentous objects as described above, and therefore, the present invention has been made in accordance with Japanese Patent Application Laid-Open No.
22(2) is a nipple that allows the filament to pass along the extrusion center line;
In the crosshead comprising the nipple and a die that is provided concentrically and extrudes and coats the coating material on the filament, the nipple and the die are provided so as to be relatively movable along the extrusion center line, so that pipe die type coating is possible. and pressure die coating.

以下図示の実施例に基いて本発明を詳述すると、第１図
および第２図に例示した第１実施例において、クロスヘ
ッド本体ｆ１）はその取付フランジ（２）が押出機側の
取付フランジ（３）にボルト締結等によって一体に連結
される。このさい押出機は図示省略しであるが、これは
公知の単軸あるいは２軸型式のスクリュ軸を用いて、合
成樹脂等の被覆材料を混線溶融して吐出口から押出す各
種の押出機をそのｉｔ使用する。クロスヘッド本体＋０
は筒形であるとともに押出中心線と同心位置において、
本体（１）の後端に固定されるニップルホルダ（４）の
前端にニップル（５）が保持されて、線条物素線（６）
が図示矢印方向に前記ホルダ（４）ニップル（５）を通
過して、繰磁　δ 出側から引取側に進行することになる。前記クロスヘッ
ド本体＋１１の筒状空間を利用して、本発明ではニップ
ルホルダ（４）およびニップル（５）を囲□ん＋同心ノ
ニツプルホルダサポート（７）およびダイス（８）ヲ一
体に具備したカートリッジ（９）を、押出中心線に沿っ
て進退自在に装設讐るの＋ある。即ちカートリッジ（９
）はクロスヘッド本体（１）の筒状空間に摺動自在に内
嵌する筒形とされ、その後端に匡ツプル糸−ダサポート
（７）が固−され、また前端にはダイス（ロ）が端盤（
１０１を介して固逝される。ニップルホルダサポート（
７）はニップルホルダ（４）に摺動自在に外嵌される筒
状部（１１）を有するとともに、該筒状部（１１）の前
端にはニップル（６１ハ摺動自在に外嵌されるノズル部
ａ埴が形成され、筒状部（■１）の外周とカートリッジ
（９）の内周との間には、カートリッジ（９）の周側一
部に設けた通孔０騰と連通する環状の通路０４が介在さ
れるとともに、前記ノズル部０匂の外周とダイス（８）
における押出ローの後端に形成したテーパ部Ｏｎとの間
には、前記通路０４と連通する通路０７）が設けられる
。前記カートリッジ（９１０通孔０１はクロス陽６ ヘッド本体（１）に設けられかつ押出機側の吐出口（１
８１と連通する供給孔−と連通亨れる９とによって、押
出機側の吐出口−より吐出される所要の被覆材料−は、
供給孔−通孔Ｑ：４より通路（１４αηを経てダイス（
８）の押出ローより押出されることになる。このさいカ
ートリッジ（ｇ）における通孔０１は、固定位置にある
クロスヘッド本体（１）の供給口（Ｉｍに対し、カート
リッジ（９）の進退にかかわらず、常に連通可能である
長さを持つものとされ、またカートリッジ（９）の進退
構造として、図例ではクロスヘッド本体（ｌの周側にガ
イド長孔圓を設け、カートリッジ（３）の周側に突設し
たスライド固を該長孔圓に沿って軸方向に摺動自在に挿
出させ、スライド翰にアクチェータ翰を連結することに
より、アクチェータ（至）の作動を介してスライド（イ
）を移動させ、′カートリッジ（９１の進退を行なうよ
うにしてあり、このアクチェーターとしては例えばエア
シリンダ、油圧シリンダ等を用いるのである。The present invention will be described in detail below based on the illustrated embodiment. In the first embodiment illustrated in FIGS. 1 and 2, the crosshead main body f1) has its mounting flange (2) connected to the extruder side (3) are integrally connected by bolting or the like. Although the extruder is not shown in the figure, it is a variety of extruders that use a known single or twin screw shaft to cross-melt a coating material such as a synthetic resin and extrude it from a discharge port. Use it. Crosshead body +0
is cylindrical and at a position concentric with the extrusion center line,
A nipple (5) is held at the front end of a nipple holder (4) fixed to the rear end of the main body (1), and the filament strand (6)
passes through the holder (4) and nipple (5) in the direction of the arrow shown in the figure, and advances from the remagnetizing side to the withdrawal side. Utilizing the cylindrical space of the crosshead body +11, the present invention integrally includes a nipple holder (4) and a nipple (5) surrounding it + a concentric nipple holder support (7) and a die (8). The cartridge (9) is installed so that it can move forward and backward along the extrusion center line. That is, the cartridge (9
) has a cylindrical shape that is slidably fitted into the cylindrical space of the crosshead body (1), a tupple thread support (7) is fixed to the rear end, and a die (b) is attached to the front end. is the end board (
101. Nipple holder support (
7) has a cylindrical part (11) that is slidably fitted onto the nipple holder (4), and a nipple (61) is slidably fitted onto the front end of the cylindrical part (11). A nozzle part a is formed, and the outer periphery of the cylindrical part (■1) and the inner periphery of the cartridge (9) communicate with a through hole provided in a part of the circumferential side of the cartridge (9). An annular passage 04 is interposed between the outer periphery of the nozzle part 0 and the die (8).
A passage 07) communicating with the passage 04 is provided between the tapered part On formed at the rear end of the extrusion row. The cartridge (910 through hole 01 is provided in the cross head body (1) and is connected to the discharge port (1) on the extruder side.
The required coating material is discharged from the discharge port on the extruder side through the supply hole communicating with 81 and 9 communicating with
Supply hole - through hole Q: Passage from 4 (through 14αη to die (
8) will be extruded from the extrusion row. At this time, the through hole 01 in the cartridge (g) has a length such that it can always communicate with the supply port (Im) of the crosshead body (1) in a fixed position, regardless of the advance or retreat of the cartridge (9). In addition, as for the advancing and retracting structure of the cartridge (9), in the illustrated example, a guide elongated hole is provided on the circumferential side of the crosshead body (l), and a slide lock protruding from the circumferential side of the cartridge (3) is inserted into the elongated hole. By slidingly inserting the cartridge (91) in the axial direction along the axis and connecting the actuator frame to the slide frame, the slide (a) is moved through the operation of the actuator (to), and the 'cartridge (91) is advanced and retreated. For example, an air cylinder, a hydraulic cylinder, or the like is used as the actuator.

この第１実施例によれば、以下のようにしてパイプダイ
式被覆と、プレッシャダイ式被覆との両磁　リ 者が自由に切換え施行できることになる。即ち第１図に
おいて、図示のようにアクチェータ（至）全作動してス
ライド固を介しカートリッジ（９）を図向って左方に後
退させ、カートリッジ（９）に組み込まれたダイス（８
）およびニップルホルダサポート（７）を同行後退させ
、固定位置に止まっているニップル（６）の先端とダイ
ス（８）の前端面を同一位置、あるいはニップル（５）
の先端がダイス前端面より突出する位置にセットするこ
とにより、クロスヘッドはパイプダイ式被覆構造となる
。従ってこの状態で繰出機から巻取機に亘る公知の線条
物走行ラインおよび押出機をスタートさせれば、クロス
ヘッド本体＋１１を通過する線条物素線（６）に対し、
図示のようにダイス（８）の押出口ＯＦ２端から環状に
押出される被覆材料−によって、パイプダイ式被覆が得
られるのである。即ちこれによれば被覆開始時、押出機
内およびクロスヘッド本体（１）における通路０４１０
η押出ロ０６内に滞留していた過発泡樹脂あるいは架橋
樹脂等の不良樹脂は、ダイス（８）の押出口（ｌυを出
た後で、線条物素線（６）に対して被覆されるので、プ
レ１柵口九〇−１１０４２２（３） ラシャダイ式被覆において見られる不良樹脂の塊りがダ
イス（８）内で素線（６）を抱くため、素線（６）に大
きな抵抗を生じて断線する等のトラブルは全く生じない
のである。こうして不良樹脂が押出される間はバイブダ
イ式被覆を行なめ、不良樹脂が排出された後は、第２図
に示すようにプレッシャダイ式被覆に変更して、高精度
の被覆作業に移るのである。即ちアクチェータ（２３１
を作動して、スライド（社）を介しカートリッジ（３）
を図向って右方に前進させ、ニップルホルダサポート（
７）およびダイス（８）全前進させて、ニップル（６）
の先端がニップルホルダサポート（７）におけるノズル
部ａｔｒの前端と同一位置に並ぶか、あるいはノズル部
（１２＋の前端より若干突出した位置まで移動させるの
であり、これによってニップル（５）がダイス（８）内
に引込んだプレッシャダイ式構造に変更でき、線振れを
生じるおそれのない、従って被覆が破れたり、肉厚ムラ
を生じることのない高精度の被覆内容が得られるのであ
る。According to the first embodiment, the pipe die type coating and the pressure die type coating can be freely switched and implemented in the following manner. That is, in FIG. 1, as shown in the figure, the actuator (to) is fully activated to move the cartridge (9) backward to the left via the slider, and the die (8) incorporated in the cartridge (9) is
) and nipple holder support (7) together, and align the tip of the nipple (6), which is stopped at a fixed position, with the front end surface of the die (8), or the nipple (5)
By setting the crosshead at a position where the tip thereof protrudes from the front end surface of the die, the crosshead has a pipe die type covering structure. Therefore, if the known filament running line from the feeder to the winder and the extruder are started in this state, the filament wire (6) passing through the crosshead body +11 will be
As shown in the figure, a pipe die type coating is obtained by extruding the coating material in an annular shape from the extrusion port OF2 end of the die (8). That is, according to this, at the start of coating, the passage 0410 in the extruder and in the crosshead body (1)
η Over-foamed resin or defective resin such as cross-linked resin remaining in the extrusion roller 06 is coated on the filament wire (6) after exiting the extrusion port (lυ) of the die (8). Therefore, the lumps of defective resin found in the Rashadai type coating hold the wire (6) in the die (8), causing a large resistance to the wire (6). Thus, while the defective resin is being extruded, the vibrator-die coating is applied, and after the defective resin is extruded, the pressure-die coating is applied as shown in Figure 2. After changing the actuator (231
actuate the cartridge (3) through the slide
Move the nipple holder support (
7) and the die (8) fully forward, and the nipple (6)
The tip of the nipple (5) is aligned with the front end of the nozzle part atr in the nipple holder support (7), or is moved to a position slightly protruding from the front end of the nozzle part (12+). ), it is possible to change the structure to a pressure die type structure retracted into the inside ( ), and it is possible to obtain a high-precision coating that does not cause line runout, and therefore does not cause the coating to tear or cause thickness unevenness.

上記動作に当ってアクチェータ（２）をライン速度およ
び押出量に応じ、例えばタイマー等を利用して隘９ 自動制御することは自由である。またいうまでもないが
、本発明のクロスヘッドにおいては、その被覆作業を、
終始一貫してパイプダイ式被覆あるいはプレッシャダイ
式被覆の何れかで行なうことも可能である。During the above operation, the actuator (2) may be automatically controlled according to the line speed and the amount of extrusion using, for example, a timer. Needless to say, in the crosshead of the present invention, the coating work is
It is also possible to carry out either pipe die coating or pressure die coating from beginning to end.

第１、第２図に示した第１実施例に続いて、第３図およ
び第４図に示す第２実施例についてその構造を説明する
。第２実施例では、ニップルホルダサポート（７）およ
びダイス（８）を固定させ、ニップル（６）およびニッ
プルホルダ（４）を進退自在としたものであり、第１．
２図に示した符号と同一符号は同一部材を示しているが
、クロスヘッド本体ｆ１）の筒状空間を利用して、後部
にニップルホルダサポー）　（７１を内嵌状に固定する
とともに、前部に端盤（ｌＯ）を介してダイス（８）と
同じく内嵌状に固定し、前記ニップルホルダサポート（
７）ダイス（８）に亘ってニップル（５）全保持したニ
ップルホルダ（４）を進退自在にかつ同心に挿設するの
であり、該ニップルホルダ（４）の後端に設けたディス
ク四の均分位置に複数個のアクチェータ（２）を連結し
て、ニップルホルダ賜１Ｄ （４）おヨヒニツブル（５）を、ニップルホルダサポー
ト（７）およびダイス（８）に対して進退自在とするの
であり、またクロスヘッド本体＋１１における供給口Ｑ
１と連通するニップルホルダサポート（７）の筒状部（
＋ｔｌの外周に設けられる環状の通路Ｉは、クロスヘッ
ド本体（１）の筒状空間における内周面との間に形成さ
れることになる。即ちこの実施例では、第３図示のよう
に、アクチェータ（＠を作動してニップルホルダ（４）
ニップル（５）を前進させ、ニップル（５）の先端をダ
イス（８）の前端面と一致させ、もしくはこれより前方
に突出させることによって、パイプダイ式被覆が得られ
、また第４図示のように、アクチェータ凶を作動してニ
ップルホルダ（４）ニップル（５）全後退すせ、ニップ
ル（５）の先端をニップルホルダサポート（７）のノズ
ル部Ｈの前端と同位置、あるいはこれより若干突出した
位置に移動させることによって、プレッシャダイ式被覆
が得られるのでありその作用、効果については同様であ
る。Following the first embodiment shown in FIGS. 1 and 2, the structure of the second embodiment shown in FIGS. 3 and 4 will be explained. In the second embodiment, the nipple holder support (7) and the die (8) are fixed, and the nipple (6) and nipple holder (4) are movable back and forth.
The same reference numerals as those shown in Fig. 2 indicate the same members, but by using the cylindrical space of the crosshead main body f1), the nipple holder support (71) is fixed in the rear part, and the front The nipple holder support (
7) The nipple holder (4), which holds the entire nipple (5) across the die (8), is inserted movably and retractably and concentrically, and the disk 4 provided at the rear end of the nipple holder (4) is evenly spaced. By connecting a plurality of actuators (2) at the minute positions, the nipple holder support 1D (4) and the nipple nipple (5) can be freely moved forward and backward with respect to the nipple holder support (7) and the die (8), Also, the supply port Q in the crosshead body +11
The cylindrical part of the nipple holder support (7) communicating with 1 (
The annular passage I provided on the outer periphery of +tl is formed between it and the inner peripheral surface of the cylindrical space of the crosshead body (1). That is, in this embodiment, as shown in the third diagram, the actuator (@) is actuated to move the nipple holder (4).
By advancing the nipple (5) and making the tip of the nipple (5) coincide with or project forward from the front end surface of the die (8), a pipe die type coating can be obtained, and as shown in the fourth figure. , activate the actuator to move the nipple holder (4) and nipple (5) fully backward, so that the tip of the nipple (5) is at the same position as the front end of the nozzle part H of the nipple holder support (7), or slightly protrudes from this. By moving it to the desired position, a pressure die type coating can be obtained, and its functions and effects are the same.

本発明クロスヘッドによれば、線条物素線に被覆を施し
て被覆線条物を得るに当り、同一クロス隘１１ ヘッドによって、パイプダイ式被覆およびプレッシャダ
イ式被覆の何れもが自由に切換施行できる点においてき
わめて有利であり、従来の両方式における鑓有の欠点を
解消し、それぞれの特長を有効に発揮し、また両方式被
覆の組合せによって、素線に対して高精度で偏肉のない
被覆が、断線等のトラブルや被覆抵抗の増大等を生じる
ことなく円滑に得られるのである。従ってクロスヘッド
に線通し作業を行なうような短時間の運転休止中でも、
架橋反応を起生ずるような合成樹脂の被覆、引張強度の
低い線条物に対する被覆に対し、きわめて適切なものと
なる。また従来の不良樹脂による断線トラブルが解消さ
れるので、このための作業ロス、運転中止もなく、稼動
率を向上できるのであり、更には運転休止中の架橋反応
を防ぐために、押出機シリンダ側の設定温度、クロスヘ
ッドの設定温度を低く下げて置く等の温度管理の面倒も
なくなるのであり、各種線条物に対する合成樹脂その他
の可塑材料による被覆作業を行なうためのクロスヘッド
として、目的、状態に応じて最適の被覆内容が確実かつ
容易に得られる点で利点大である。According to the crosshead of the present invention, when coating a filament strand to obtain a coated filament, the same crosshead 11 can freely switch between pipe die type coating and pressure die type coating. It is extremely advantageous in that it can coat the strands with high precision and no uneven thickness by eliminating the drawbacks of the conventional two-way coating and effectively demonstrating the advantages of each. The coating can be smoothly obtained without causing troubles such as wire breakage or increases in coating resistance. Therefore, even during short-term operation stoppages such as when threading wires into the crosshead,
It is extremely suitable for coating synthetic resins that cause crosslinking reactions and for coating filamentous materials with low tensile strength. In addition, since the conventional problem of wire breakage caused by defective resin is eliminated, there is no work loss or suspension of operation, and the operating rate can be improved. This eliminates the trouble of temperature control such as keeping the set temperature of the crosshead low, and it can be used as a crosshead for coating various filaments with synthetic resin or other plastic materials, depending on the purpose and condition. This has a great advantage in that the optimum coating content can be obtained reliably and easily depending on the situation.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明に係る第１実施例のパイプダイ式被覆状
態の縦断側面図、第２図は同プレッシャダイ式被覆状態
の縦断側面図、第３図は同第２実施例のパイプダイ式被
覆状態の縦断側面図、第４図は同プレッシャダイ式被覆
状態の縦断側面図である。 ｆｌ）・・・クロスヘッド本体、ｆ４１・・・ニップル
ホルダ、（６）・・・二’）　７”　ｋ　、（ｉｌｌ・
・・線条物素線、（７）・・・ニップルホルダサボー）
　、（８１・・・ダイス、（９）・・・カートリッジ、
−・・・被覆材料、（２）・・・アクチェータ。FIG. 1 is a vertical side view of the pipe die type coating according to the first embodiment of the present invention, FIG. 2 is a vertical side view of the same pressure die type coating, and FIG. 3 is the pipe die type coating of the second embodiment. FIG. 4 is a vertical side view of the pressure die type coating state. fl)...Crosshead body, f41...Nipple holder, (6)...2') 7"k, (ill・
・Striated material wire, (7) ・Nipple holder sabot)
, (81...Dice, (9)...Cartridge,
-... Covering material, (2)... Actuator.

Claims (1)

【特許請求の範囲】[Claims] １、　押出中心線に沿って線条物を通過させるニップル
、紋ニップルと同心に設けられかつ前記線条物に被覆材
料を押出被覆するダイスとから成るクロスヘッドにおい
て、前記ニップルおよびダイスが押出中心線に沿って相
対移動自在に設けられることによって、パイプダイ式被
覆とプレッシャダイ式被覆の何れにも切換可能とされた
ことを特徴とする線条物被覆用クロスヘッド。1. A crosshead consisting of a nipple that allows the filament to pass along the extrusion center line, and a die that is provided concentrically with the striped nipple and that extrudes and coats the filament with the coating material, in which the nipple and the die are located at the extrusion center. 1. A crosshead for covering a linear object, characterized in that it is provided so as to be relatively movable along the wire so that it can be switched to either a pipe die type coating or a pressure die type coating.
JP58219119A 1983-11-19 1983-11-19 Crosshead for coating filament article Pending JPS60110422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58219119A JPS60110422A (en) 1983-11-19 1983-11-19 Crosshead for coating filament article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58219119A JPS60110422A (en) 1983-11-19 1983-11-19 Crosshead for coating filament article

Publications (1)

Publication Number Publication Date
JPS60110422A true JPS60110422A (en) 1985-06-15

Family

ID=16730538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58219119A Pending JPS60110422A (en) 1983-11-19 1983-11-19 Crosshead for coating filament article

Country Status (1)

Country Link
JP (1) JPS60110422A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001036109A1 (en) * 1999-11-16 2001-05-25 Advanced Cardiovascular Systems, Inc. Method and apparatus for polymer application to intracorporeal device
EP1882578A1 (en) * 2006-07-27 2008-01-30 Societe de Technologie Michelin Apparatus and method for sheathing of cables and the manufactured cable

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001036109A1 (en) * 1999-11-16 2001-05-25 Advanced Cardiovascular Systems, Inc. Method and apparatus for polymer application to intracorporeal device
US6419745B1 (en) * 1999-11-16 2002-07-16 Advanced Cardiovascular Systems, Inc. Method and apparatus for polymer application to intracorporeal device
US6599557B2 (en) 1999-11-16 2003-07-29 Advanced Cardiovascuslar Systems, Inc. Method and apparatus for polymer application to intracorporeal device
US6695915B2 (en) 1999-11-16 2004-02-24 Advanced Cardiovascular Systems, Inc. Method and apparatus for polymer application to intracorporeal device
US6733819B2 (en) 1999-11-16 2004-05-11 Advanced Cardiovascular Systems, Inc. Method and apparatus for polymer application to intracorporeal device
EP1882578A1 (en) * 2006-07-27 2008-01-30 Societe de Technologie Michelin Apparatus and method for sheathing of cables and the manufactured cable
FR2904256A1 (en) * 2006-07-27 2008-02-01 Michelin Soc Tech MOBILE DIE CABLE SINGING DEVICE
JP2008030485A (en) * 2006-07-27 2008-02-14 Soc De Technol Michelin Code housing device with movable die

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