JPS59187829A - Controller for temperature of molten resin in extruder - Google Patents

Controller for temperature of molten resin in extruder

Info

Publication number
JPS59187829A
JPS59187829A JP58062755A JP6275583A JPS59187829A JP S59187829 A JPS59187829 A JP S59187829A JP 58062755 A JP58062755 A JP 58062755A JP 6275583 A JP6275583 A JP 6275583A JP S59187829 A JPS59187829 A JP S59187829A
Authority
JP
Japan
Prior art keywords
resin
temperature
extruder
molten resin
rotor
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
JP58062755A
Other languages
Japanese (ja)
Inventor
Katsumi Sugano
菅野　勝視
Yoshio Ikegami
池上　喜雄
Shiro Kishi
岸　史郎
Tadashi Takashita
高下　正
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 JP58062755A priority Critical patent/JPS59187829A/en
Publication of JPS59187829A publication Critical patent/JPS59187829A/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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
    • 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
    • B29C48/465—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using rollers
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/832—Heating
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain a controller to control the temperature of molten resin by regulating shearing energy to the molten resin by providing a specific resin shearing means between an extruding means and a molding means. CONSTITUTION:A rotor 29 is turnably set inside of a cylinder 40 to form a part of a nearly L-shaped resin flow path, connected to a speed-variable motor 37, and turned with any rotation speed. A shearing action is further applied to the molten resin coming out of the extruder 6 by the rotor 29, the temperature of the resin is optionally controlled by the shearing energy, and the resin is supplied to the resin flow path 26 side in the crosshead body 26.

Description

【発明の詳細な説明】 本発明は、合成樹脂押出製品または合成樹脂押出被覆製
品を得るだめの押出機において、押出成形品の高品質化
に不可欠な溶融樹脂温度のより厳密な温度制御が確実か
つ容易に得られるようにしたものに関する。Detailed Description of the Invention The present invention ensures stricter temperature control of the molten resin temperature, which is essential for improving the quality of extruded products, in an extruder for producing synthetic resin extruded products or synthetic resin extruded coated products. It also relates to something that can be easily obtained.

プラスチックシート、フィルムあるいはパイプ等のプラ
スチック製品の押出製作、更には各種線条材に対するプ
ラスチック被覆材の被覆による被覆成形品の押出製作に
当り、スクリュによる押出機出口に、ダイス、クロスヘ
ッド等の成形型手段を一体に付加しだ押出機を用いるこ
とは既知であり、このさい押出機内で溶融された樹脂を
ダイス、クロスヘッド等によって押出すまでの過程にお
いて、押出機シリンダ外壁やダイス、クロスヘッド外壁
に設置したヒータ等の加熱体によって、溶融樹脂温度の
コントロールを行なうことも既知である。しかしこれら
従来の温度コントロールはいわば間接的なものであり、
前述しだ押出成形品や押出被覆成形品の高品質化に伴な
って、その溶融樹脂温度のコントロールはより厳密さが
要求されるのであるが、従来の押出機や成形型の外部に
設けられた加熱体によるものでは、かかる要求に応える
ものとして、敏速な温度変化その他において大きな問題
点がある。In the extrusion production of plastic products such as plastic sheets, films, and pipes, and in the extrusion production of coated molded products by coating various wire materials with plastic coating materials, molding dies, crossheads, etc. are installed at the exit of the extruder using a screw. It is known to use an extruder in which mold means are integrally added, and in the process of extruding the molten resin in the extruder through dies, crossheads, etc., the outer wall of the extruder cylinder, dies, crosshead, etc. It is also known to control the temperature of the molten resin using a heating element such as a heater installed on the outer wall. However, these conventional temperature controls are indirect, so to speak.
As the quality of extrusion molded products and extrusion coated molded products increases, stricter control of the temperature of the molten resin is required. However, in order to meet such requirements, heating elements using a heating element such as the above have major problems in terms of rapid temperature changes and other problems.

本発明は、かかる押出機における溶融樹脂温度制御にお
ける問題点を解決するためになされたものであって、そ
の特徴とする処は、溶融樹脂の押出手段と、該樹脂を特
定形状にかつ連続的に成形または被覆するダイス、クロ
スヘッド等の成形型手段とから成る押出様において、前
記押出手段と成形型手段との間に、部独かつ変速自在な
駆動装置を介して回転するロータ゛または中子を有する
シリンダによる樹脂ぜん断手段を設けることにより、前
記ロータとシリンダまた（ｒｉ中子とシリンダ間を通過
する溶融樹脂へのせん断エネルギの調整を介し溶融樹脂
温度を制御する点にある。The present invention has been made to solve the problems in controlling the temperature of molten resin in such an extruder, and its features include a means for extruding molten resin, and a means for extruding the resin into a specific shape and continuously. In an extrusion method comprising mold means such as a die or crosshead for molding or coating, a rotor or core is provided between the extrusion means and the mold means, which rotates via an independent and variable speed drive device. By providing a resin shearing means using a cylinder having a cylinder, the temperature of the molten resin is controlled by adjusting the shearing energy to the molten resin passing between the rotor and the cylinder (RI core and the cylinder).

以下図示の実施例に基いて本発明を詳述すると、第１図
は本発明の対象とする押出機の１例とｌ〜て通信ケーブ
ル用絶縁素線製造装置において用いる押出機を示したも
のであり、既知のように、ヤー７″ライスタンド（１）
から繰り出される硬銅線０３）は、伸線機（２）を経由
し、て伸線処理さｉｌて後、軟化機（３）により軟化処
理されることによって軟銅線（１４）とされ、第１ダン
ザローラ（４）、再加熱機（５）をへて押出機（６）に
送られる。この押出機（６）には後述するように、ダイ
ス、ニップルを具備したクロスヘッド等の押出被覆のだ
めの成形型部（７）を備えることにより、前記軟銅線（
１４）が成形型部（７）を通過することによって、例え
ば加熱溶融された発泡プラスチック材等による樹脂被覆
が施されて絶縁素線（１５）となって、冷却水槽（８）
等を通過して、軟化状態の樹脂被膜が冷却硬化すること
により、発泡率の調整による誘電率の制御が得られ、引
取機（１０）第２ダンザローラ（１１）をへて１巻取機
（１２１側に製品として巻取られるのであり、このよう
な製造ラインにおいて用いる押出機（６）とし７て、そ
の溶融樹脂温度のコントロールはいうまでもなく必要と
されるが、従来はその押出機シリンダα粉の外壁や成形
型部（７）における外壁等に、加熱ヒータ等を取付ける
ことによって、その温度制御を行なっているのに止まる
のであり、正確迅速かつ任意の樹脂温度変更等には問題
点がある。The present invention will be described in detail below based on the illustrated embodiments. Fig. 1 shows an example of an extruder to which the present invention is applied, and an extruder used in an apparatus for manufacturing insulated wire for communication cables. and, as is known, Yer 7″ Lystand (1)
The hard copper wire 03) fed out from the wire passes through a wire drawing machine (2), is drawn, and then softened by a softening machine (3) to become an annealed copper wire (14). After passing through the first dancer roller (4) and the reheater (5), it is sent to the extruder (6). As will be described later, this extruder (6) is equipped with a mold section (7) for extrusion coating, such as a crosshead equipped with a die and a nipple, so that the annealed copper wire (
14) passes through the mold part (7) and is coated with a resin such as a heated and melted foamed plastic material to become an insulated wire (15), which is then sent to the cooling water tank (8).
The softened resin film is cooled and hardened, allowing control of the dielectric constant by adjusting the foaming rate. It goes without saying that the molten resin temperature must be controlled as an extruder (6) 7 used in such a production line, but conventionally the extruder cylinder Although the temperature is controlled by installing a heater etc. on the outer wall of the α powder or the outer wall of the mold part (7), it is difficult to change the resin temperature accurately and quickly. There is.

本発明では、かかる押出被覆成形品を得るための押出機
（６）において、第２図および第３図に例示するような
温度制御装置を用いるのである。但し２本発明はこのよ
うな押出被覆成形品を対象とする押出機のみに限られる
ことなく、単にダイスを用いて所要形状のプラスチック
押出成形品（フィルム、シート、パイプその他）を得る
ための押出機にも適用可能でおることはいうまでもない
、。In the present invention, a temperature control device as illustrated in FIGS. 2 and 3 is used in the extruder (6) for obtaining such an extrusion coated molded product. However, 2. The present invention is not limited to an extruder for such extrusion coated products, but is also applicable to extrusion machines that simply use dies to obtain plastic extrusion products (films, sheets, pipes, etc.) in desired shapes. Needless to say, it can also be applied to machines.

第２図および第３図において、押出機（６）は、押出機
架構（２０）上にシリンダ支え０９）を介してシリンダ
（１ηが、外壁上の加熱ヒータ（１８）とともに設置さ
れ、シリンダ（Ｉη内にはスクリュα６）が可回動に内
蔵されるどともにカバー力）によって覆われている。前
記シリンダ０ηにおける出口にはブレーカプレート［２
２ｉを介して、ロータ用ヘット責２４）が連結金具θ１
）により一体に連結される。このヘッド（２４）には図
示のようにブレーカプレート（２Ｚよ炒の溶融樹脂を成
形型部（７）側に導出するための、略り形とされた樹脂
流路（２４ａ）が設けらｆ′Ｌるとともに、同流路（２
４ａ　）の一部を形成する図例では上向き垂直状のシリ
ンダ部（４０）内に、ロータ（２９）が可回動に内蔵さ
れるのである。In FIGS. 2 and 3, the extruder (6) has a cylinder (1η) installed on the extrusion mechanism frame (20) via a cylinder support 09) together with a heater (18) on the outer wall, and the cylinder ( A screw α6) is rotatably built into Iη and is covered by a cover force. A breaker plate [2
2i, the rotor head 24) connects to the connecting fitting θ1.
) are connected together. As shown in the figure, this head (24) is provided with a resin flow path (24a) in a substantially rectangular shape for guiding the molten resin of the breaker plate (2Z) to the mold part (7) side. 'L, and the same flow path (2
4a), a rotor (29) is rotatably housed within an upwardly facing vertical cylinder portion (40).

前記ロータ（２９）のロータ軸（廁）はロータ用ヘッド
（２４）の一部に設けた軸受部（４１）に、シールノく
ツヤン（３ｔ）、パツキン押えの（２）、更にはスラス
ト軸受（３３）、ラジアル軸受（釧およびスペーサ（９
）を介して可回動に軸架され、カップリング（３６）を
介して可変速モータ（３７）に連結されることにより、
ロータ（２９）は独立して任意の回転速度のもとに回動
され、これによって押出機（６）を出た溶融樹脂に更に
ぜん新作用を加えることにより、そのせん断エネルギに
よって樹脂温度を任意に制御できるようにされるのであ
る。前記ロータ用ヘッド（２４）のシリンダ部（４０）
は連結金具（２６およびスペーサ蚊を介し、て、図例で
はダイスおよびニップル（図示省略）を既知のように備
えたクロスヘッド本体（２６）に連結されることによっ
て、そのロータ（２９）の回転速度の調整によって所要
の温度とされた溶融樹脂が、クロスヘッド本体（２Ｇ）
にお（づる樹脂流路（Ｚ６ａ）側に供給され、同クロス
ヘッド本体（２６）におけるニップルおよびダイスを通
過する軟銅線（１４）に対して一体に被覆されることに
よって、絶縁素線θ５）として成形型部（７）から出る
ことになるのである。同第２．５図において、岬）は押
出機（６）への樹脂ホッパ、０９）は成形型部（７）に
おけるクロスヘッド本体□□□の樹脂流路４２６ａ）側
に設けた樹脂温度検出用の熱電対を示している。また（
２８）はロータ用ヘッド（２４）の外壁に配置した加熱
ヒータである。The rotor shaft (29) of the rotor (29) has a seal nozzle (3t), a seal holder (2), and a thrust bearing (41) provided in a part of the rotor head (24). 33), radial bearing (hook and spacer (9)
), and is connected to a variable speed motor (37) via a coupling (36).
The rotor (29) is independently rotated at a desired rotational speed, and by applying a new action to the molten resin exiting the extruder (6), the resin temperature can be controlled at any desired temperature using its shear energy. In other words, it can be controlled. Cylinder part (40) of the rotor head (24)
is connected to the crosshead body (26), which is provided with a die and a nipple (not shown) in a known manner, through a connecting fitting (26) and a spacer, thereby controlling the rotation of its rotor (29). The molten resin, which has been brought to the required temperature by adjusting the speed, is transferred to the crosshead body (2G).
(by being integrally coated with the annealed copper wire (14) that is supplied to the resin flow path (Z6a) side and passes through the nipple and die in the crosshead body (26), the insulated wire θ5) As a result, it comes out of the mold part (7). In Figure 2.5, cape) is the resin hopper to the extruder (6), and 09) is the resin temperature detection provided on the resin flow path 426a) side of the crosshead body □□□ in the mold section (7). A thermocouple for use is shown. Also(
28) is a heater placed on the outer wall of the rotor head (24).

この第２．３図に示した実施例では、ロータ（２９）を
変速自在に回転させ、シリンダ部（４０）を固定の関係
としたが、これはロータい）を固定の中子とし、これに
対しシリンダ部（４０）を変速自在に回転させる構造に
変更することも容易かつ同効である。In the embodiment shown in Fig. 2.3, the rotor (29) is rotated at variable speeds, and the cylinder part (40) is fixed, but the rotor (29) is a fixed core. On the other hand, it is also easy and equally effective to change the structure to one in which the cylinder portion (40) is rotated at variable speeds.

本発明によれば、第２．３図に示した実施例に従えば、
押出機（６）内で溶融された被覆用の樹脂はブレーカプ
レート（２ｚを出てロータ用ヘッド（２４）の樹脂流路
（２４ａ）内に押出され、成形型部（７）におけるクロ
スヘッド本体−）側に供給される過程において、回転す
るロータ四とシリンダ部（４０）とによるせん断装置部
分において、ロータ（２９）の回転もしくはシリンダ部
α（ロ）の回転によるせん断作用を受けることにより、
そのせん断熱によって樹脂温度を、回転速度の増減によ
って自在にコントロールさせることができ、同時に樹脂
温度の均一化、樹脂分散度の向上が得、られ、かくして
所望の樹脂温度にコントロールされかつ均質化された溶
融樹脂がクロスヘッド本体錬の樹脂流路（２Ｓａ）をへ
て、図示省略しであるがダイス側に供給されることによ
り、設定値に正しくフィードバックされた樹脂温度下に
素線に対する被覆が得られるのである。即ち第１図に例
示したような通信ケーブル用絶縁素線製造ラインにおい
ては、既知のように静電容量検出器による静電容量の検
出、あるいは図例の熱電対（３９）による供給直前にお
ける樹脂温度の検出等によって、ロータ（２９）の回転
（正逆転可能）を、可変速モータせん断エネルギの増減
を介して、所望の温度値になるように変更させるのであ
る。このさい従来の外部からの加熱ヒータ等による間接
加熱方式と相違し、直接樹脂にせん断作用を与えてのせ
ん断エネルギによる加熱のため、その温度変化はゝきわ
めて正確かつ敏速であり、実試データによれば駆動後、
２０秒で２℃の温度変更が得られるのであり、所要温度
への変換制御はきわめて迅速かつ厳密に得られるのであ
る。同時にまた押出成形もしくは押出被覆成形直前にお
ける樹脂の反復せん断によって、樹脂温度の均一化と分
散度の向上が得られるのであυ、これによって所望の設
定温度値に正しく制御され、かつ均質化されたものをダ
イス側に供給でき、得られる製品の高品質化、均一安定
性において優れた効果が得られることにもなるのである
。According to the invention, according to the embodiment shown in FIG. 2.3:
The coating resin melted in the extruder (6) exits the breaker plate (2z) and is extruded into the resin flow path (24a) of the rotor head (24), and is transferred to the crosshead main body in the mold section (7). -) In the process of being supplied to the side, the shearing device part formed by the rotating rotor 4 and the cylinder part (40) receives a shearing action due to the rotation of the rotor (29) or the rotation of the cylinder part α (b).
Due to the shear heat insulation, the resin temperature can be freely controlled by increasing or decreasing the rotational speed, and at the same time, the resin temperature can be made uniform and the degree of resin dispersion can be improved, so that the desired resin temperature can be controlled and homogenized. The molten resin passes through the resin flow path (2Sa) of the crosshead main body and is supplied to the die side (not shown), so that the wire is coated at a resin temperature that is correctly fed back to the set value. You can get it. That is, in the production line for insulated wire for communication cables as illustrated in FIG. 1, as is known, capacitance is detected by a capacitance detector, or resin is detected immediately before being supplied by a thermocouple (39) as shown in the figure. By detecting the temperature, etc., the rotation of the rotor (29) (which can be rotated forward or backward) is changed to a desired temperature value by increasing or decreasing the shear energy of the variable speed motor. At this time, unlike the conventional indirect heating method using external heaters, etc., the resin is heated by applying shear energy directly, so the temperature change is extremely accurate and rapid, and it is based on actual test data. According to after driving,
A temperature change of 2° C. can be achieved in 20 seconds, and conversion control to the desired temperature can be achieved extremely quickly and precisely. At the same time, the repeated shearing of the resin immediately before extrusion molding or extrusion coating molding can equalize the resin temperature and improve the degree of dispersion, allowing the desired set temperature to be accurately controlled and homogenized. This allows the material to be fed to the die side, resulting in superior effects in terms of high quality and uniform stability of the resulting product.

以上のように本発明は、押出機における溶融樹脂温度の
制御に肖り、従来よりはるかに厳密な温度管理が得られ
る点で優れ、しかも上記のロータとシリンダ、または中
子とシリンダ゛とによるせん断手段はコンパクトなもの
で足り、従来の押出様内に容易に組込設置できるもので
、押出成形品乃至押出被覆成形品における高品質化に寄
与する処大である。As described above, the present invention is suitable for controlling the temperature of molten resin in an extruder, and is superior in that it can achieve much stricter temperature control than conventional methods. The shearing means can be compact and can be easily installed in a conventional extrusion mold, which is a great feature that contributes to high quality of extrusion molded products and extrusion coated molded products.

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

第１図は本発明装置適用例としての通信ケーン。 ル用絶縁素線製造装置ラインの１例説明図、第２図は本
発明装置実施例の正面図、第３図は同第２図Ａ−Ａ線の
要部側断面図である。 （６）・・・押出機、（７）・・・成形型部、θ６）・
・・押出機スクリュ、ａ′７）・・・押出機シリンダ、
（２４）・・・ロータ用ヘッド、（２４８）・・・樹脂
流路、（２９）・・・ロータ、■・・・ロータ軸、Ｇ３
η・・・可変速モータ、（２６）・・・クロスヘッド本
体、（４ｏ）・・・シリンダ部。FIG. 1 shows a communication cane as an example of application of the device of the present invention. FIG. 2 is a front view of an embodiment of the apparatus of the present invention, and FIG. 3 is a sectional side view of a main part taken along line A--A in FIG. 2. (6)...Extruder, (7)...Mold part, θ6)・
...Extruder screw, a'7)...Extruder cylinder,
(24)...Rotor head, (248)...Resin flow path, (29)...Rotor, ■...Rotor shaft, G3
η...Variable speed motor, (26)...Crosshead body, (4o)...Cylinder part.

Claims (1)

【特許請求の範囲】[Claims] ｌ、　溶融樹脂の押出手段と、該樹脂を特定形状にかつ
連続的に成形または被覆するダイス、クロスヘッド等の
成形型手段とから成る押出機において、前記押出手段と
成形型手段との間に、単独かつ変速自在な駆動装置を介
して回転するひ一夕または中子を有するシリンダによる
樹脂せん断手段を設けることによシ、前記ロータとシリ
ンダまたは中子とシリンダ間を通過する溶融樹脂へのせ
ん断エネルギの調整を介し溶融樹脂温度を制御すること
を特徴とする押出機の溶融樹脂温度制御装置。l. In an extruder comprising a means for extruding molten resin and a mold means such as a die or crosshead for continuously molding or coating the resin into a specific shape, there is no space between the extrusion means and the mold means. By providing a resin shearing means using a cylinder having a rotor or a core which rotates via an independent and variable speed drive device, the molten resin passing between the rotor and the cylinder or between the core and the cylinder can be A molten resin temperature control device for an extruder, characterized in that the molten resin temperature is controlled through adjustment of shear energy.
JP58062755A 1983-04-08 1983-04-08 Controller for temperature of molten resin in extruder Pending JPS59187829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58062755A JPS59187829A (en) 1983-04-08 1983-04-08 Controller for temperature of molten resin in extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58062755A JPS59187829A (en) 1983-04-08 1983-04-08 Controller for temperature of molten resin in extruder

Publications (1)

Publication Number Publication Date
JPS59187829A true JPS59187829A (en) 1984-10-25

Family

ID=13209532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58062755A Pending JPS59187829A (en) 1983-04-08 1983-04-08 Controller for temperature of molten resin in extruder

Country Status (1)

Country Link
JP (1) JPS59187829A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007076157A (en) * 2005-09-14 2007-03-29 I K G Kk Apparatus for controlling temperature of polymeric material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919131A (en) * 1982-07-21 1984-01-31 Nishikawa Gomme Kogyo Kk Shear heater for high polymeric material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919131A (en) * 1982-07-21 1984-01-31 Nishikawa Gomme Kogyo Kk Shear heater for high polymeric material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007076157A (en) * 2005-09-14 2007-03-29 I K G Kk Apparatus for controlling temperature of polymeric material

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