JP2015020191A - Method and device of controlling cooling of sheet-like material - Google Patents

Method and device of controlling cooling of sheet-like material Download PDF

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JP2015020191A
JP2015020191A JP2013150392A JP2013150392A JP2015020191A JP 2015020191 A JP2015020191 A JP 2015020191A JP 2013150392 A JP2013150392 A JP 2013150392A JP 2013150392 A JP2013150392 A JP 2013150392A JP 2015020191 A JP2015020191 A JP 2015020191A
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JP6186976B2 (en
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大塚　裕之
Hiroyuki Otsuka
裕之 大塚
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    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums

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Abstract

PROBLEM TO BE SOLVED: To provide a method and device of controlling cooling of a sheet-like material by which the sheet-like material having a desired organization structure can be formed by finely controlling in a cooling process of a molten material.SOLUTION: A molten material received by a tundish 2 from a crucible 1 is supplied to an outer circumferential surface of a rotating cooling roll 3 to carry out primary cooling of the molten material. Then, a cooling belt 14 endlessly wound between a first pulley 4, a second pulley 7, and a tension pulley 10 is pressed to the outer circumferential surface of the cooling roll 3 to carry out secondary cooling of the material between the cooling roll 3 and the cooling belt 14.

Description

本発明は、シート状材料の冷却制御方法及び装置に関するものである。   The present invention relates to a cooling control method and apparatus for sheet-like material.

従来、樹脂或いは金属等の溶融材料を回転する冷却ロールの外周面に供給して冷却を行うことによりシート状材料を形成することが行われている。   Conventionally, a sheet-like material is formed by supplying a molten material such as resin or metal to the outer peripheral surface of a rotating cooling roll and cooling it.

これと類似したシートの加工装置を示すものとしては、例えば、特許文献１がある。該特許文献１に開示された装置では、一対のエンドレス支持ロールと転写ロールとの間隔の調整、及びエンドレス張力調整ロールの位置の調整によって、エンドレスベルトの接触面積及び張力（加圧される力）を調整することにより、熱可塑性樹脂への転写用の型の転写効率及び冷却効率を向上できるようになっている。   As an example of a sheet processing apparatus similar to this, there is Patent Document 1, for example. In the apparatus disclosed in Patent Document 1, the contact area and tension (pressed force) of the endless belt are adjusted by adjusting the distance between the pair of endless support rolls and the transfer roll and adjusting the position of the endless tension adjusting roll. By adjusting the above, it is possible to improve the transfer efficiency and cooling efficiency of the mold for transfer to the thermoplastic resin.

特開２０１０−２６０３５７号公報JP 2010-260357 A

しかしながら、特許文献１に開示された装置は、基本的に熱可塑性樹脂を成型する際に微細模様を付与するためのものに過ぎない。   However, the device disclosed in Patent Document 1 is basically only for applying a fine pattern when molding a thermoplastic resin.

又、特許文献１に開示された装置では、ダイスを出た溶融状態の熱可塑性樹脂は、微細模様加工した転写用の型を有する転写ロールと、エンドレスベルトとの間に直接導かれるようになっており、前記溶融状態の熱可塑性樹脂を、転写ロールとエンドレスベルトとの間に導く前に、転写ロールの外周面に供給して冷却しようとする技術的思想は全くない。このため、溶融材料の冷却工程できめ細かい制御を行うことは困難となり、透明性を確保した樹脂シート、或いは磁性や電気的特性を変化させた金属シートといったように、種々のシート状材料を形成する上で非常に重要となる所望の組織構造を得ることはできなかった。   Further, in the apparatus disclosed in Patent Document 1, the molten thermoplastic resin from the die is directly guided between a transfer roll having a fine pattern processed transfer mold and an endless belt. Therefore, there is no technical idea to cool the molten thermoplastic resin by supplying it to the outer peripheral surface of the transfer roll before introducing it between the transfer roll and the endless belt. For this reason, it becomes difficult to perform fine control in the cooling process of the molten material, and various sheet-like materials are formed, such as a resin sheet that secures transparency, or a metal sheet that changes magnetic properties and electrical characteristics. The desired tissue structure, which is very important above, could not be obtained.

本発明は、上記従来の問題点に鑑みてなしたもので、溶融材料の冷却工程できめ細かい制御を行うことができ、所望の組織構造を有したシート状材料を形成し得るシート状材料の冷却制御方法及び装置を提供しようとするものである。   The present invention has been made in view of the above-described conventional problems, and it is possible to perform fine control in the cooling process of the molten material, and to cool the sheet material that can form a sheet material having a desired structure. It is an object of the present invention to provide a control method and apparatus.

本発明は、溶融材料を回転する冷却ロールの外周面に供給して一次冷却を行い、続いて、前記冷却ロールと冷却ロール外周面に押し付けられる冷却ベルトとの間を通過させて二次冷却を行うことによりシート状材料を形成するシート状材料の冷却制御方法であって、
材料の二次冷却開始温度計測値が二次冷却開始温度目標値より高いとき、一次冷却の領域を長くして二次冷却開始温度を下げ、前記二次冷却開始温度計測値が二次冷却開始温度目標値以下のとき、一次冷却の領域を短くして二次冷却開始温度を上げる二次冷却開始温度調整工程と、
前記二次冷却開始温度計測値と二次冷却終了温度計測値に基づく冷却速度が冷却速度目標値より大きいとき、前記冷却ベルトの冷却ロール外周面に対する押付力を減少させて冷却速度を下げ、前記冷却速度が冷却速度目標値以下のとき、前記冷却ベルトの冷却ロール外周面に対する押付力を増加させて冷却速度を上げる冷却速度調整工程と、
前記二次冷却終了温度計測値が二次冷却終了温度目標値より高いとき、二次冷却の領域を長くして二次冷却終了温度を下げ、前記二次冷却終了温度計測値が二次冷却終了温度目標値以下のとき、二次冷却の領域を短くして二次冷却終了温度を上げる二次冷却終了温度調整工程と
を行うことを特徴とするシート状材料の冷却制御方法にかかるものである。 The present invention supplies the molten material to the outer peripheral surface of the rotating cooling roll to perform primary cooling, and subsequently passes between the cooling roll and the cooling belt pressed against the outer peripheral surface of the cooling roll to perform secondary cooling. A cooling control method for a sheet-like material that forms a sheet-like material by performing,
When the measured value of the secondary cooling start temperature of the material is higher than the target value of the secondary cooling start temperature, the primary cooling region is lengthened to lower the secondary cooling start temperature, and the measured value of the secondary cooling start temperature is the secondary cooling start. When the temperature is lower than the target temperature, the secondary cooling start temperature adjustment step for shortening the primary cooling region and increasing the secondary cooling start temperature;
When the cooling rate based on the secondary cooling start temperature measurement value and the secondary cooling end temperature measurement value is larger than the cooling rate target value, the pressing force against the outer peripheral surface of the cooling belt of the cooling belt is decreased to reduce the cooling rate, When the cooling rate is equal to or lower than the cooling rate target value, a cooling rate adjustment step for increasing the cooling rate by increasing the pressing force of the cooling belt against the outer peripheral surface of the cooling roll; and
When the secondary cooling end temperature measured value is higher than the secondary cooling end temperature target value, the secondary cooling end temperature is lowered by extending the secondary cooling region, and the secondary cooling end temperature measured value is the secondary cooling end. And a secondary cooling end temperature adjustment step of increasing the secondary cooling end temperature by shortening the secondary cooling region when the temperature is equal to or lower than the temperature target value. .

前記シート状材料の冷却制御方法においては、前記二次冷却開始温度調整工程における二次冷却開始温度計測値と二次冷却開始温度目標値との比較は、二次冷却開始温度計測値と二次冷却開始温度目標値との偏差の絶対値が許容偏差を超えるときに行い、
前記冷却速度調整工程における冷却速度は、前記二次冷却開始温度調整工程で前記二次冷却開始温度計測値と二次冷却開始温度目標値との偏差の絶対値が許容偏差以下のとき、冷却速度算出値として
Ｒ＝（ＴＡ−ＴＢ）／（Ｌ／Ｖ）
但し、ＴＡ：二次冷却開始温度計測値
ＴＢ：二次冷却終了温度計測値
Ｌ：冷却ロール外周面に押し付けられる冷却ベルトの弧長
Ｖ：冷却ロールの周速
より算出し、前記冷却速度算出値と冷却速度目標値との比較は、該冷却速度算出値と冷却速度目標値との偏差の絶対値が許容偏差を超えるときに行い、
前記二次冷却終了温度調整工程における二次冷却終了温度計測値と二次冷却終了温度目標値との比較は、前記冷却速度調整工程で冷却速度算出値と冷却速度目標値との偏差の絶対値が許容偏差以下であって、前記二次冷却終了温度計測値と二次冷却終了温度目標値との偏差の絶対値が許容偏差を超えるときに行い、前記二次冷却終了温度計測値と二次冷却終了温度目標値との偏差の絶対値が許容偏差以下のとき、前記二次冷却開始温度調整工程へ戻るようにすることが好ましい。 In the cooling control method for the sheet-like material, the secondary cooling start temperature measurement value and the secondary cooling start temperature target value in the secondary cooling start temperature adjustment step are compared with the secondary cooling start temperature measurement value and the secondary cooling start temperature target value. Performed when the absolute value of deviation from the cooling start temperature target value exceeds the allowable deviation,
The cooling rate in the cooling rate adjustment step is the cooling rate when the absolute value of the deviation between the measured value of the secondary cooling start temperature and the target value of the secondary cooling start temperature is less than the allowable deviation in the secondary cooling start temperature adjustment step. as calculated value R = (T A -T B) / (L / V)
However, T A: secondary cooling start temperature measured value T B: secondary cooling end temperature measurement value L: arc length of the cooling belt is pressed against the cooling roll outer surface V: calculated from the peripheral speed of the cooling roll, the cooling rate The comparison between the calculated value and the target cooling rate is performed when the absolute value of the deviation between the calculated cooling rate and the target cooling rate exceeds the allowable deviation.
The measured value of the secondary cooling end temperature in the secondary cooling end temperature adjustment step and the target value of the secondary cooling end temperature are compared with the absolute value of the deviation between the calculated cooling rate and the target cooling rate in the cooling rate adjustment step. When the absolute value of the deviation between the secondary cooling end temperature measured value and the secondary cooling end temperature target value exceeds the allowable deviation, the secondary cooling end temperature measured value and the secondary cooling end temperature When the absolute value of the deviation from the cooling end temperature target value is less than the allowable deviation, it is preferable to return to the secondary cooling start temperature adjustment step.

又、本発明は、回転自在に配設され且つ外周面に供給される溶融材料の一次冷却と二次冷却とを行う冷却ロールと、
第一プーリーと第二プーリーとテンションプーリーとの間に無端状に掛け回され且つ第一プーリーと第二プーリーとの間で冷却ロール外周面に押し付けられて該冷却ロールとの間で材料の前記二次冷却を行う冷却ベルトと、
前記第一プーリーの配設位置における材料の二次冷却開始温度計測値を計測する第一温度センサと、
前記第二プーリーの配設位置における材料の二次冷却終了温度計測値を計測する第二温度センサと、
前記第一温度センサで計測される二次冷却開始温度計測値と前記第二温度センサで計測される二次冷却終了温度計測値とに基づき、前記第一プーリーの位置調整を行う第一アクチュエータと、前記第二プーリーの位置調整を行う第二アクチュエータと、前記テンションプーリーの位置調整を行うテンションアクチュエータとに制御信号を出力することにより、前記一次冷却と二次冷却とを調整する制御器と
を備えたことを特徴とするシート状材料の冷却制御装置にかかるものである。 Further, the present invention provides a cooling roll that performs primary cooling and secondary cooling of a molten material that is rotatably disposed and is supplied to the outer peripheral surface;
Between the first pulley, the second pulley, and the tension pulley, the material is wound endlessly and pressed against the outer peripheral surface of the cooling roll between the first pulley and the second pulley. A cooling belt for secondary cooling;
A first temperature sensor for measuring a secondary cooling start temperature measurement value of the material at the arrangement position of the first pulley;
A second temperature sensor for measuring a secondary cooling end temperature measurement value of the material at the position where the second pulley is disposed;
A first actuator that adjusts the position of the first pulley based on a secondary cooling start temperature measurement value measured by the first temperature sensor and a secondary cooling end temperature measurement value measured by the second temperature sensor; A controller for adjusting the primary cooling and the secondary cooling by outputting a control signal to a second actuator for adjusting the position of the second pulley and a tension actuator for adjusting the position of the tension pulley. The present invention relates to a cooling control device for sheet-like material, which is provided.

前記シート状材料の冷却制御装置において、前記第一プーリーは、前記冷却ロールにおける溶融材料の供給位置から冷却ロール回転方向下流側へ所要距離だけ離れた位置に、冷却ロール軸心と平行な軸心を中心として回転自在に且つ前記第一アクチュエータの作動により冷却ロール外周面に沿って位置調整自在となるよう配設され、
前記第二プーリーは、前記第一プーリーから冷却ロール回転方向下流側へ所要距離だけ離れた位置に、冷却ロール軸心と平行な軸心を中心として回転自在に且つ前記第二アクチュエータの作動により冷却ロール外周面に沿って位置調整自在となるよう配設され、
前記テンションプーリーは、前記第一プーリー及び第二プーリーから所要距離だけ離れた位置に、冷却ロール軸心と平行な軸心を中心として回転自在に且つ前記テンションアクチュエータの作動により冷却ロール外周面に対する位置調整自在となるよう配設されることが好ましい。 In the sheet-like material cooling control apparatus, the first pulley has an axis parallel to the cooling roll axis at a position away from the molten material supply position in the cooling roll by a required distance downstream in the rotation direction of the cooling roll. Is arranged so that the position can be adjusted along the outer peripheral surface of the cooling roll by the operation of the first actuator.
The second pulley is cooled by the operation of the second actuator at a position away from the first pulley by a required distance downstream in the rotation direction of the cooling roll, with the axis parallel to the cooling roll axis as the center. It is arranged so that the position can be adjusted along the outer peripheral surface of the roll,
The tension pulley is located at a position away from the first pulley and the second pulley by a required distance, is rotatable about an axis parallel to the cooling roll axis, and is positioned relative to the outer peripheral surface of the cooling roll by the operation of the tension actuator. It is preferable to be arranged so as to be adjustable.

前記シート状材料の冷却制御装置において、前記制御器は、
前記一次冷却の終了地点となる二次冷却の開始地点で第一温度センサにより計測される材料の二次冷却開始温度計測値と二次冷却開始温度目標値との偏差の絶対値が許容偏差を超え且つ前記二次冷却開始温度計測値が二次冷却開始温度目標値より高いとき、前記二次冷却の開始地点となる第一プーリーの位置を材料流通方向下流側へ移動させ、一次冷却の領域を長くして二次冷却開始温度計測値を下げる制御信号を前記第一アクチュエータへ出力する一方、前記二次冷却開始温度計測値と二次冷却開始温度目標値との偏差の絶対値が許容偏差を超え且つ前記二次冷却開始温度計測値が二次冷却開始温度目標値以下のとき、前記二次冷却の開始地点となる第一プーリーの位置を材料流通方向上流側へ移動させ、一次冷却の領域を短くして二次冷却開始温度計測値を上げる制御信号を前記第一アクチュエータへ出力する二次冷却開始温度調整部と、
該二次冷却開始温度調整部で前記二次冷却開始温度計測値と二次冷却開始温度目標値との偏差の絶対値が許容偏差以下であると判断されたとき、冷却速度算出値を
Ｒ＝（ＴＡ−ＴＢ）／（Ｌ／Ｖ）
但し、ＴＡ：二次冷却開始温度計測値
ＴＢ：二次冷却終了温度計測値
Ｌ：冷却ロール外周面に押し付けられる冷却ベルトの弧長
Ｖ：冷却ロールの周速
より算出し、該冷却速度算出値と冷却速度目標値との偏差の絶対値が許容偏差を超え且つ前記冷却速度算出値が冷却速度目標値より大きいとき、前記冷却ベルトの張力を減少させる方向へテンションプーリーを移動させ、該冷却ベルトの冷却ロール外周面に対する押付力を減少させて冷却速度算出値を下げる制御信号を前記テンションアクチュエータへ出力する一方、前記冷却速度算出値と冷却速度目標値との偏差の絶対値が許容偏差を超え且つ前記冷却速度算出値が冷却速度目標値以下のとき、前記冷却ベルトの張力を増加させる方向へテンションプーリーを移動させ、該冷却ベルトの冷却ロール外周面に対する押付力を増加させて冷却速度算出値を上げる制御信号を前記テンションアクチュエータへ出力する冷却速度調整部と、
該冷却速度調整部で冷却速度算出値と冷却速度目標値との偏差の絶対値が許容偏差以下であると判断されたとき、前記二次冷却の終了地点で第二温度センサにより計測される材料の二次冷却終了温度計測値と二次冷却終了温度目標値との偏差の絶対値が許容偏差を超え且つ前記二次冷却終了温度計測値が二次冷却終了温度目標値より高いとき、前記二次冷却の終了地点となる第二プーリーの位置を材料流通方向下流側へ移動させ、二次冷却の領域を長くして二次冷却終了温度計測値を下げる制御信号を前記第二アクチュエータへ出力する一方、前記二次冷却終了温度計測値と二次冷却終了温度目標値との偏差の絶対値が許容偏差を超え且つ前記二次冷却終了温度計測値が二次冷却終了温度目標値以下のとき、前記二次冷却の終了地点となる第二プーリーの位置を材料流通方向上流側へ移動させ、二次冷却の領域を短くして二次冷却終了温度計測値を上げる制御信号を前記第二アクチュエータへ出力し、前記二次冷却終了温度計測値と二次冷却終了温度目標値との偏差の絶対値が許容偏差以下のとき、前記二次冷却開始温度調整部での制御へ戻る二次冷却終了温度調整部と
を具備することができる。 In the sheet-like material cooling control device, the controller includes:
The absolute value of the deviation between the secondary cooling start temperature measurement value of the material measured by the first temperature sensor and the secondary cooling start temperature target value at the start point of the secondary cooling, which is the end point of the primary cooling, is an allowable deviation. When the measured value of the secondary cooling start temperature exceeds the secondary cooling start temperature target value, the position of the first pulley that is the starting point of the secondary cooling is moved downstream in the material flow direction, and the primary cooling region Is output to the first actuator, while the absolute value of the deviation between the secondary cooling start temperature measurement value and the secondary cooling start temperature target value is an allowable deviation. And the measured value of the secondary cooling start temperature is equal to or lower than the target value of the secondary cooling start temperature, the position of the first pulley, which is the starting point of the secondary cooling, is moved upstream in the material flow direction, Secondary cooling by shortening the area A secondary cooling start temperature adjusting unit for outputting a control signal to raise the starting temperature measurement value to the first actuator,
When the secondary cooling start temperature adjustment unit determines that the absolute value of the deviation between the measured value of the secondary cooling start temperature and the target value of the secondary cooling start temperature is equal to or less than the allowable deviation, the calculated cooling rate is set to R = (T A -T B) / ( L / V)
However, T A : Secondary cooling start temperature measurement value T B : Secondary cooling end temperature measurement value L: Arc length of the cooling belt pressed against the outer peripheral surface of the cooling roll V: Calculated from the peripheral speed of the cooling roll, and the cooling speed When the absolute value of the deviation between the calculated value and the cooling speed target value exceeds the allowable deviation and the cooling speed calculated value is larger than the cooling speed target value, the tension pulley is moved in a direction to reduce the tension of the cooling belt, While the control signal for decreasing the pressing force of the cooling belt against the outer peripheral surface of the cooling roll to lower the calculated cooling rate is output to the tension actuator, the absolute value of the deviation between the calculated cooling rate and the target cooling rate is the allowable deviation. And the calculated cooling rate is less than or equal to the target cooling rate, the tension pulley is moved in a direction to increase the tension of the cooling belt, and the cooling belt A cooling rate adjustment unit that outputs a control signal to the tension actuator to increase the pressing force on the outer peripheral surface of the cooling roll to increase the calculated cooling rate;
The material measured by the second temperature sensor at the end point of the secondary cooling when the absolute value of the deviation between the calculated cooling rate and the target cooling rate is determined to be less than the allowable deviation by the cooling rate adjusting unit When the absolute value of the deviation between the secondary cooling end temperature measured value and the secondary cooling end temperature target value exceeds the allowable deviation and the secondary cooling end temperature measured value is higher than the secondary cooling end temperature target value, Move the position of the second pulley, which is the end point of the secondary cooling, to the downstream side in the material flow direction, and output a control signal to the second actuator that lengthens the secondary cooling region and lowers the secondary cooling end temperature measurement value. On the other hand, when the absolute value of the deviation between the secondary cooling end temperature measured value and the secondary cooling end temperature target value exceeds an allowable deviation and the secondary cooling end temperature measured value is equal to or less than the secondary cooling end temperature target value, The second end point of the secondary cooling A control signal for moving the pulley position upstream in the material flow direction, shortening the secondary cooling region and increasing the secondary cooling end temperature measurement value is output to the second actuator, and the secondary cooling end temperature measurement value is output. And a secondary cooling end temperature adjusting unit that returns to control in the secondary cooling start temperature adjusting unit when the absolute value of the deviation between the secondary cooling end temperature target value is equal to or less than the allowable deviation.

本発明のシート状材料の冷却制御方法及び装置によれば、溶融材料の冷却工程できめ細かい制御を行うことができ、所望の組織構造を有したシート状材料を形成し得るという優れた効果を奏し得る。   According to the cooling control method and apparatus for a sheet-like material of the present invention, it is possible to perform fine control in the cooling process of the molten material, and the excellent effect that a sheet-like material having a desired texture structure can be formed. obtain.

本発明のシート状材料の冷却制御装置の実施例を示す概要構成斜視図である。It is a general | schematic structure perspective view which shows the Example of the cooling control apparatus of the sheet-like material of this invention. 本発明のシート状材料の冷却制御装置の実施例を示す概要構成側面図である。It is a general | schematic structure side view which shows the Example of the cooling control apparatus of the sheet-like material of this invention. 本発明のシート状材料の冷却制御装置の実施例における二次冷却開始温度調整部を示すフローチャートである。It is a flowchart which shows the secondary cooling start temperature adjustment part in the Example of the cooling control apparatus of the sheet-like material of this invention. 本発明のシート状材料の冷却制御装置の実施例における冷却速度調整部を示すフローチャートである。It is a flowchart which shows the cooling rate adjustment part in the Example of the cooling control apparatus of the sheet-like material of this invention. 本発明のシート状材料の冷却制御装置の実施例における二次冷却終了温度調整部を示すフローチャートである。It is a flowchart which shows the secondary cooling completion | finish temperature adjustment part in the Example of the cooling control apparatus of the sheet-like material of this invention.

以下、本発明の実施の形態を添付図面を参照して説明する。   Embodiments of the present invention will be described below with reference to the accompanying drawings.

図１〜図５は本発明のシート状材料の冷却制御装置の実施例であって、１は溶融材料が貯留される坩堝、２は坩堝１に貯留された溶融材料を受けるタンディッシュであり、該タンディッシュ２で受けた溶融材料を、図示していないモータ及び減速機を介して回転する冷却ロール３の外周面に供給することにより、溶融材料の一次冷却と二次冷却とを行うようにしてある。   1 to 5 are embodiments of a cooling control apparatus for sheet-like material according to the present invention, wherein 1 is a crucible in which a molten material is stored, 2 is a tundish that receives the molten material stored in the crucible 1, By supplying the molten material received by the tundish 2 to the outer peripheral surface of the cooling roll 3 that rotates via a motor and a speed reducer (not shown), primary cooling and secondary cooling of the molten material are performed. It is.

前記冷却ロール３の内部には図示していない冷却流路が形成され、該冷却流路に冷却媒体が流通するようにしてある。   A cooling passage (not shown) is formed inside the cooling roll 3 so that the cooling medium flows through the cooling passage.

前記冷却ロール３における溶融材料の供給位置から冷却ロール３の回転方向下流側へ所要距離だけ離れた位置には、冷却ロール３の軸心と平行な軸心を中心として回転自在な第一プーリー４を、冷却ロール３の外周面に沿って位置調整自在となるよう配設してある。該第一プーリー４の両端部は、図示していないハウジングに冷却ロール３の軸線を中心として回動自在となるよう配設された第一プーリーガイド５に軸受（図示せず）を介して支持され、該第一プーリーガイド５を流体圧シリンダ等の第一アクチュエータ６によって回動させることにより、前記第一プーリー４の位置調整を行うようにしてある。   A first pulley 4 that is rotatable about an axis parallel to the axis of the cooling roll 3 is located at a position away from the supply position of the molten material in the cooling roll 3 by a required distance downstream in the rotation direction of the cooling roll 3. Is arranged along the outer peripheral surface of the cooling roll 3 so that the position can be adjusted. Both ends of the first pulley 4 are supported by bearings (not shown) on a first pulley guide 5 which is disposed in a housing (not shown) so as to be rotatable about the axis of the cooling roll 3. The position of the first pulley 4 is adjusted by rotating the first pulley guide 5 by a first actuator 6 such as a fluid pressure cylinder.

前記第一プーリー４から冷却ロール３の回転方向下流側へ所要距離だけ離れた位置には、冷却ロール３の軸心と平行な軸心を中心として回転自在な第二プーリー７を、冷却ロール３の外周面に沿って位置調整自在となるよう配設してある。該第二プーリー７の両端部は、前記ハウジングに冷却ロール３の軸線を中心として回動自在となるよう配設された第二プーリーガイド８に軸受（図示せず）を介して支持され、該第二プーリーガイド８を流体圧シリンダ等の第二アクチュエータ９によって回動させることにより、前記第二プーリー７の位置調整を行うようにしてある。   A second pulley 7 that is rotatable about an axis parallel to the axis of the cooling roll 3 is provided at a position away from the first pulley 4 by a required distance downstream in the rotation direction of the cooling roll 3. It is arranged so that the position can be adjusted along the outer peripheral surface. Both ends of the second pulley 7 are supported by a second pulley guide 8 disposed in the housing so as to be rotatable about the axis of the cooling roll 3 via bearings (not shown), The position of the second pulley 7 is adjusted by rotating the second pulley guide 8 by a second actuator 9 such as a fluid pressure cylinder.

前記第一プーリー４及び第二プーリー７から所要距離だけ離れた位置には、冷却ロール３の軸心と平行な軸心を中心として回転自在なテンションプーリー１０を、冷却ロール３の外周面に対する位置調整自在となるよう配設してある。該テンションプーリー１０の一端部は、前記ハウジングに冷却ロール３の軸線と平行な軸を中心として揺動自在となるよう配設されたアーム１１の先端に軸受ブラケット１２を介して支持され、該アーム１１を流体圧シリンダ等のテンションアクチュエータ１３によって揺動させることにより、前記テンションプーリー１０の位置調整を行うようにしてある。   At a position away from the first pulley 4 and the second pulley 7 by a required distance, a tension pulley 10 that is rotatable about an axis parallel to the axis of the cooling roll 3 is positioned with respect to the outer peripheral surface of the cooling roll 3. It is arranged to be adjustable. One end of the tension pulley 10 is supported by a tip of an arm 11 disposed on the housing so as to be swingable about an axis parallel to the axis of the cooling roll 3 via a bearing bracket 12. The position of the tension pulley 10 is adjusted by swinging 11 by a tension actuator 13 such as a fluid pressure cylinder.

前記第一プーリー４と第二プーリー７とテンションプーリー１０との間には、冷却ベルト１４を無端状に掛け回し、該冷却ベルト１４を第一プーリー４と第二プーリー７との間で冷却ロール３の外周面に押し付けることにより、該冷却ロール３と冷却ベルト１４との間に材料を通過させて前記二次冷却を行うようにしてある。該二次冷却は、材料を冷却ロール３だけでなく冷却ベルト１４にも接触させるため、前記一次冷却よりも冷却速度を高め材料の急冷を行うことが可能となっている。   Between the first pulley 4, the second pulley 7, and the tension pulley 10, a cooling belt 14 is wound endlessly, and the cooling belt 14 is cooled between the first pulley 4 and the second pulley 7. The material is passed between the cooling roll 3 and the cooling belt 14 so as to perform the secondary cooling. In the secondary cooling, the material is brought into contact not only with the cooling roll 3 but also with the cooling belt 14, so that the cooling rate can be increased faster than the primary cooling so that the material can be rapidly cooled.

前記第一プーリーガイド５から冷却ロール３の外周面側へ張り出すように配設した第一ブラケット１５には、前記第一プーリー４の配設位置における材料の二次冷却開始温度計測値ＴＡを計測する第一温度センサ１６を設け、前記第二プーリーガイド８から冷却ロール３の外周面側へ張り出すように配設した第二ブラケット１７には、前記第二プーリー７の配設位置における材料の二次冷却終了温度計測値ＴＢを計測する第二温度センサ１８を設けてある。 The first bracket 15 disposed so as to protrude from the first pulley guide 5 toward the outer peripheral surface of the cooling roll 3 has a secondary cooling start temperature measurement value T A of the material at the position where the first pulley 4 is disposed. The first temperature sensor 16 for measuring the temperature is provided, and the second bracket 17 disposed so as to protrude from the second pulley guide 8 to the outer peripheral surface side of the cooling roll 3 is provided at the position where the second pulley 7 is disposed. It is provided with a second temperature sensor 18 for measuring the secondary cooling end temperature measurement value T B of the material.

そして、前記第一温度センサ１６で計測される二次冷却開始温度計測値ＴＡと前記第二温度センサ１８で計測される二次冷却終了温度計測値ＴＢとに基づき、制御器１９から前記第一アクチュエータ６と第二アクチュエータ９とテンションアクチュエータ１３とに制御信号６ａ，９ａ，１３ａを出力するようにしてある。 Then, based on the secondary cooling end temperature measurement value T B which is measured by the secondary cooling start temperature measured value T A measured by the first temperature sensor 16 second temperature sensor 18, the the controller 19 Control signals 6a, 9a, 13a are output to the first actuator 6, the second actuator 9, and the tension actuator 13.

前記制御器１９は、二次冷却開始温度調整工程を行う二次冷却開始温度調整部１９Ａ（図３参照）と、冷却速度調整工程を行う冷却速度調整部１９Ｂ（図４参照）と、二次冷却終了温度調整工程を行う二次冷却終了温度調整部１９Ｃ（図５参照）とを具備している。   The controller 19 includes a secondary cooling start temperature adjusting unit 19A (see FIG. 3) that performs a secondary cooling start temperature adjusting step, a cooling rate adjusting unit 19B (see FIG. 4) that performs a cooling rate adjusting step, A secondary cooling end temperature adjusting unit 19C (see FIG. 5) that performs the cooling end temperature adjusting step.

前記二次冷却開始温度調整部１９Ａは、図３に示す如く、前記一次冷却の終了地点となる二次冷却の開始地点で第一温度センサ１６により材料の二次冷却開始温度計測値ＴＡを計測するステップＳ１と、該ステップＳ１で計測された材料の二次冷却開始温度計測値ＴＡと二次冷却開始温度目標値ＴＡ０との偏差の絶対値を許容偏差εTAと比較して第一プーリー４の位置の調整の要否を判断するステップＳ２と、該ステップＳ２で二次冷却開始温度計測値ＴＡと二次冷却開始温度目標値ＴＡ０との偏差の絶対値が許容偏差εTAを超え調整を要すると判断されたときに二次冷却開始温度計測値ＴＡが二次冷却開始温度目標値ＴＡ０より高いか否かを判断するステップＳ３とを備えている。更に、前記ステップＳ３で前記二次冷却開始温度計測値ＴＡが二次冷却開始温度目標値ＴＡ０より高いと判断されたとき、前記二次冷却の開始地点となる第一プーリー４の位置を材料流通方向下流側へ移動させ、一次冷却の領域を長くして二次冷却開始温度計測値ＴＡを下げる制御信号６ａを前記第一アクチュエータ６へ出力するステップＳ４と、前記ステップＳ３で前記二次冷却開始温度計測値ＴＡが二次冷却開始温度目標値ＴＡ０以下であると判断されたとき、前記二次冷却の開始地点となる第一プーリー４の位置を材料流通方向上流側へ移動させ、一次冷却の領域を短くして二次冷却開始温度計測値ＴＡを上げる制御信号６ａを前記第一アクチュエータ６へ出力するステップＳ５とを備えている。尚、前記ステップＳ４或いはステップＳ５で制御信号６ａを第一アクチュエータ６へ出力した後は、前記ステップＳ１へ戻るようにしてある。又、ステップＳ６は、前記ステップＳ２で前記二次冷却開始温度計測値ＴＡと二次冷却開始温度目標値ＴＡ０との偏差の絶対値が許容偏差εTA以下であると判断されたとき、前記第一プーリー４の位置変更は行われないことを示している。 As shown in FIG. 3, the secondary cooling start temperature adjusting unit 19 </ b> A obtains the secondary cooling start temperature measurement value TA of the material by the first temperature sensor 16 at the secondary cooling start point that is the end point of the primary cooling. a step S1 of measuring, the comparing the absolute value of the difference between the secondary cooling start temperature measured value T a and the secondary cooling start temperature set value T A0 of the material measured in the step S1 and tolerance epsilon TA a step S2 of determining whether or not to adjust the positions of the pulleys 4, the absolute value of the deviation between the secondary cooling start temperature measured value T a and the secondary cooling start temperature target value T A0 at the step S2 is allowable deviation ε and a step S3 for determining whether the secondary cooling start temperature measured value T a is higher than the secondary cooling start temperature target value T A0 when it is determined to require more than adjust the TA. Further, when the secondary cooling start temperature measured value T A at step S3 is determined to be higher than the secondary cooling start temperature target value T A0, the position of the first pulley 4 to be the start point of the secondary cooling moving the material flow direction downstream side, and a step S4 for outputting a control signal 6a which a longer region of the primary cooling lowers the secondary cooling start temperature measured value T a to the first actuator 6, the in step S3 two when the next cooling start temperature measured value T a is determined to be less than the secondary cooling start temperature target value T A0, move the position of the first pulley 4 to be the start point of the secondary cooling the material flow direction upstream side It is, and a step S5 for outputting a control signal 6a to shorten the region of the primary cooling raise secondary cooling start temperature measured value T a to the first actuator 6. Note that after the control signal 6a is output to the first actuator 6 in step S4 or step S5, the process returns to step S1. Moreover, step S6, when the absolute value of the difference between the secondary cooling start temperature measured value T A and the secondary cooling start temperature target value T A0 is determined to be less than the allowable deviation epsilon TA at step S2, This shows that the position of the first pulley 4 is not changed.

前記冷却速度調整部１９Ｂは、前記二次冷却開始温度調整部１９ＡのステップＳ２で前記二次冷却開始温度計測値ＴＡと二次冷却開始温度目標値ＴＡ０との偏差の絶対値が許容偏差εTA以下であると判断されたとき、前記ステップＳ６を経て、図４に示す如く、前記一次冷却の終了地点となる二次冷却の開始地点で第一温度センサ１６により材料の二次冷却開始温度計測値ＴＡを計測すると共に、二次冷却の終了地点で第二温度センサ１８により材料の二次冷却終了温度計測値ＴＢを計測するステップＳ７と、該ステップＳ７で計測された二次冷却開始温度計測値ＴＡ及び二次冷却終了温度計測値ＴＢに基づき冷却速度算出値Ｒを
Ｒ＝（ＴＡ−ＴＢ）／（Ｌ／Ｖ）
但し、Ｌ：冷却ロール３の外周面に押し付けられる冷却ベルト１４の弧長（図２参照）
Ｖ：冷却ロール３の周速（図２参照）
より算出するステップＳ８と、該ステップＳ８で算出された冷却速度算出値Ｒと冷却速度目標値Ｒ０との偏差の絶対値を許容偏差εRと比較してテンションプーリー１０の位置の調整の要否を判断するステップＳ９と、該ステップＳ９で冷却速度算出値Ｒと冷却速度目標値Ｒ０との偏差の絶対値が許容偏差εRを超え調整を要すると判断されたときに冷却速度算出値Ｒが冷却速度目標値Ｒ０より大きいか否かを判断するステップＳ１０とを備えている。因みに、前記冷却ロール３の外周面に押し付けられる冷却ベルト１４の弧長Ｌは、前記第一アクチュエータ６と第二アクチュエータ９の伸縮量に基づいて演算され、前記冷却ロール３の周速Ｖは、前記モータの回転数に基づいて演算されるようにしてある。更に、前記ステップＳ１０で前記冷却速度算出値Ｒが冷却速度目標値Ｒ０より大きいと判断されたとき、前記冷却ベルト１４の張力を減少させる方向へテンションプーリー１０を移動させ、該冷却ベルト１４の冷却ロール外周面に対する押付力を減少させて冷却速度算出値Ｒを下げる制御信号１３ａを前記テンションアクチュエータへ出力するステップＳ１１と、前記ステップＳ１０で前記冷却速度算出値Ｒが冷却速度目標値Ｒ０以下であると判断されたとき、前記冷却ベルト１４の張力を増加させる方向へテンションプーリー１０を移動させ、該冷却ベルト１４の冷却ロール外周面に対する押付力を増加させて冷却速度算出値Ｒを上げる制御信号１３ａを前記テンションアクチュエータ１３へ出力するステップＳ１２とを備えている。尚、前記ステップＳ１１或いはステップＳ１２で制御信号１３ａをテンションアクチュエータ１３へ出力した後は、前記ステップＳ７へ戻るようにしてある。又、ステップＳ１３は、前記ステップＳ９で前記冷却速度算出値Ｒと冷却速度目標値Ｒ０との偏差の絶対値が許容偏差εR以下であると判断されたとき、前記テンションプーリー１０の位置変更は行われないことを示している。 The cooling rate adjusting section 19B has the absolute value of the tolerance for the deviation between the said secondary cooling start temperature measured value in step S2 of the secondary cooling start temperature adjuster 19A T A and the secondary cooling start temperature target value T A0 ε when it is determined that TA is less than, through the step S6, as shown in FIG. 4, secondary cooling start of the material by the first temperature sensor 16 at the start point of the secondary cooling as the end point of the primary cooling with measuring a temperature measurement value T a, and step S7 for measuring the secondary cooling end temperature measurement value T B of the material by the second temperature sensor 18 at the end point of the secondary cooling, secondary measured in the step S7 the cooling start temperature measured value T a and the cooling rate calculated value R based on the secondary cooling end temperature measurement value T B R = (T a -T B) / (L / V)
L: arc length of the cooling belt 14 pressed against the outer peripheral surface of the cooling roll 3 (see FIG. 2)
V: peripheral speed of the cooling roll 3 (see FIG. 2)
Step S8 to be calculated, and the absolute value of the deviation between the cooling speed calculated value R calculated in Step S8 and the cooling speed target value R0 is compared with the allowable deviation ε R to adjust the position of the tension pulley 10. Step S9 for determining NO, and when it is determined in Step S9 that the absolute value of the deviation between the cooling rate calculation value R and the cooling rate target value R0 exceeds the allowable deviation ε R and adjustment is required, Step S10 for determining whether or not R is larger than the cooling rate target value R0 . Incidentally, the arc length L of the cooling belt 14 pressed against the outer peripheral surface of the cooling roll 3 is calculated based on the amount of expansion and contraction of the first actuator 6 and the second actuator 9, and the peripheral speed V of the cooling roll 3 is Calculations are made based on the number of rotations of the motor. Further, when it is determined in step S10 that the cooling speed calculation value R is larger than the cooling speed target value R 0 , the tension pulley 10 is moved in a direction to decrease the tension of the cooling belt 14, and the cooling belt 14 In step S11, a control signal 13a for decreasing the pressing force on the outer peripheral surface of the cooling roll to lower the cooling speed calculation value R is output to the tension actuator. In step S10, the cooling speed calculation value R is equal to or less than the cooling speed target value R 0. When it is determined that the tension of the cooling belt 14 is increased, the tension pulley 10 is moved to increase the pressing force of the cooling belt 14 against the outer peripheral surface of the cooling roll to increase the cooling rate calculation value R. And step S12 for outputting the signal 13a to the tension actuator 13. Note that after the control signal 13a is output to the tension actuator 13 in step S11 or step S12, the process returns to step S7. In step S13, when it is determined in step S9 that the absolute value of the deviation between the cooling speed calculated value R and the cooling speed target value R0 is less than the allowable deviation ε R , the position of the tension pulley 10 is changed. Indicates that it will not be done.

前記二次冷却終了温度調整部１９Ｃは、前記冷却速度調整部１９ＢのステップＳ９で冷却速度算出値Ｒと冷却速度目標値Ｒ０との偏差の絶対値が許容偏差εR以下であると判断されたとき、ステップＳ１３を経て、図５に示す如く、二次冷却の終了地点で第二温度センサ１８により材料の二次冷却終了温度計測値ＴＢを計測するステップＳ１４と、該ステップＳ１４で計測された材料の二次冷却終了温度計測値ＴＢと二次冷却終了温度目標値ＴＢ０との偏差の絶対値を許容偏差εTBと比較して第二プーリー７の位置の調整の要否を判断するステップＳ１５と、該ステップＳ１５で二次冷却終了温度計測値ＴＢと二次冷却終了温度目標値ＴＢ０との偏差の絶対値が許容偏差εTBとを超え調整を要すると判断されたときに二次冷却終了温度計測値ＴＢが二次冷却終了温度目標値ＴＢ０より高いか否かを判断するステップＳ１６とを備えている。更に、前記ステップＳ１６で前記二次冷却終了温度計測値ＴＢが二次冷却終了温度目標値ＴＢ０より高いと判断されたとき、前記二次冷却の終了地点となる第二プーリー７の位置を材料流通方向下流側へ移動させ、二次冷却の領域を長くして二次冷却終了温度計測値ＴＢを下げる制御信号９ａを前記第二アクチュエータ９へ出力するステップＳ１７と、前記ステップＳ１６で前記二次冷却終了温度計測値ＴＢが二次冷却終了温度目標値ＴＢ０以下であると判断されたとき、前記二次冷却の終了地点となる第二プーリー７の位置を材料流通方向上流側へ移動させ、二次冷却の領域を短くして二次冷却終了温度計測値ＴＢを上げる制御信号９ａを前記第二アクチュエータ９へ出力するステップＳ１８とを備えている。尚、前記ステップＳ１７或いはステップＳ１８で制御信号９ａを第二アクチュエータ９へ出力した後は、冷却ベルト１４のテンションが変わるので、再度、冷却速度を調整するために、前記冷却速度調整部１９ＢのステップＳ７へ戻るようにしてある。又、ステップＳ１９は、前記ステップＳ１５で前記二次冷却終了温度計測値ＴＢと二次冷却終了温度目標値ＴＢ０との偏差の絶対値が許容偏差εTB以下であると判断されたとき、前記第二プーリー７の位置変更は行われないことを示し、この場合、前記二次冷却開始温度調整部１９ＡのステップＳ１へ戻るようにしてある。 The secondary cooling end temperature adjusting unit 19C is determined in step S9 of the cooling rate adjusting unit 19B that the absolute value of the deviation between the cooling rate calculated value R and the cooling rate target value R0 is equal to or less than the allowable deviation ε R. when in, through step S13, as shown in FIG. 5, a step S14 for measuring the secondary cooling end temperature measurement value T B of the material by the second temperature sensor 18 at the end point of the secondary cooling, measured in the step S14 the necessity of adjustment of the position of the second pulley 7 absolute value as compared with the tolerance epsilon TB of the difference between the secondary cooling end temperature measurement value T B and the secondary cooling end target temperature T B0 materials a step S15 of determining the absolute value of the deviation between the secondary cooling end temperature measurement value T B and the secondary cooling end target temperature T B0 at the step S15 is judged to require adjustment exceeds the allowable deviation epsilon TB Sometimes secondary cooling end temperature measurement T B is a step S16 of determining whether higher than the secondary cooling end temperature target value T B0. Further, when the secondary cooling end temperature measurement value T B at the step S16 is judged to be higher than the secondary cooling end temperature target value T B0, the position of the second pulley 7 serving as the end point of the secondary cooling moving the material flow direction downstream side, and the step S17 of outputting a control signal 9a to reduce the secondary cooling end temperature measurement value T B by increasing the area of the secondary cooling to the second actuator 9, wherein in the step S16 when the secondary cooling end temperature measurement value T B is determined to be less than the secondary cooling end temperature target value T B0, the position of the second pulley 7 serving as the end point of the secondary cooling the material flow direction upstream side the moved, and a step S18 for outputting a control signal 9a to increase the secondary cooling end temperature measurement value T B by reducing the area of the secondary cooling to the second actuator 9. Since the tension of the cooling belt 14 changes after the control signal 9a is output to the second actuator 9 in Step S17 or Step S18, the step of the cooling speed adjusting unit 19B is performed again to adjust the cooling speed. The process returns to S7. Further, step S19, when the absolute value of the difference between the secondary cooling end temperature measurement value T B and the secondary cooling end target temperature T B0 is determined to be less than the allowable deviation epsilon TB in step S15, This indicates that the position of the second pulley 7 is not changed. In this case, the process returns to step S1 of the secondary cooling start temperature adjusting unit 19A.

次に、上記実施例の作用を説明する。   Next, the operation of the above embodiment will be described.

坩堝１に貯留された溶融材料は、タンディッシュを介して、回転する冷却ロール３の外周面に供給され、先ず一次冷却が行われる。   The molten material stored in the crucible 1 is supplied to the outer peripheral surface of the rotating cooling roll 3 through a tundish, and firstly primary cooling is performed.

続いて、第一プーリー４と第二プーリー７とテンションプーリー１０との間に無端状に掛け回された冷却ベルト１４は、第一プーリー４と第二プーリー７との間で冷却ロール３の外周面に押し付けられ、該冷却ロール３と冷却ベルト１４との間を材料が通過して二次冷却が行われる。   Subsequently, the cooling belt 14 wound endlessly between the first pulley 4, the second pulley 7, and the tension pulley 10 is arranged between the first pulley 4 and the second pulley 7 and the outer periphery of the cooling roll 3. The material is pressed against the surface and the material passes between the cooling roll 3 and the cooling belt 14 to perform secondary cooling.

制御器１９の二次冷却開始温度調整部１９Ａでは、図３に示す如く、前記一次冷却の終了地点となる二次冷却の開始地点で第一温度センサ１６により材料の二次冷却開始温度計測値ＴＡが計測される（ステップＳ１参照）。 In the secondary cooling start temperature adjusting unit 19A of the controller 19, as shown in FIG. 3, the secondary cooling start temperature measurement value of the material is measured by the first temperature sensor 16 at the secondary cooling start point which is the end point of the primary cooling. T A is measured (see step S1).

前記ステップＳ１で計測された材料の二次冷却開始温度計測値ＴＡと二次冷却開始温度目標値ＴＡ０との偏差の絶対値は、許容偏差εTAと比較されて第一プーリー４の位置の調整の要否が判断される（ステップＳ２参照）。 Absolute value, the position of the first pulley 4 is compared with the allowable deviation epsilon TA of the difference between the secondary cooling start temperature measured value T A and the secondary cooling start temperature set value T A0 of the material measured in step S1 Whether or not adjustment is necessary is determined (see step S2).

前記ステップＳ２で二次冷却開始温度計測値ＴＡと二次冷却開始温度目標値ＴＡ０との偏差の絶対値が許容偏差εTAを超え調整を要すると判断されたときには、二次冷却開始温度計測値ＴＡが二次冷却開始温度目標値ＴＡ０より高いか否かが判断される（ステップＳ３参照）。 When the absolute value of the difference between the secondary cooling start temperature measured value T A and the secondary cooling start temperature target value T A0 at the step S2 it is judged to require adjustment exceeds the allowable deviation epsilon TA, the secondary cooling start temperature whether the measured value T A is higher than the secondary cooling start temperature target value T A0 is determined (see step S3).

前記ステップＳ３で前記二次冷却開始温度計測値ＴＡが二次冷却開始温度目標値ＴＡ０より高いと判断されたときには、制御器１９から出力される制御信号６ａにより第一アクチュエータ６が図１において伸長駆動されて、前記二次冷却の開始地点となる第一プーリー４の位置が材料流通方向下流側へ移動し、一次冷却の領域が長くなって二次冷却開始温度計測値ＴＡが下げられる（ステップＳ４参照）。 When the secondary cooling start temperature measured value T A at step S3 is determined to be higher than the secondary cooling start temperature target value T A0 is first actuator 6 by a control signal 6a outputted from the controller 19 in FIG. 1 It is driven extended in the secondary starting point and a position of the first pulley 4 of the cooling moves the material flow direction downstream side, the primary cooling area is longer lowered secondary cooling start temperature measured value T a (See step S4).

一方、前記ステップＳ３で前記二次冷却開始温度計測値ＴＡが二次冷却開始温度目標値ＴＡ０以下であると判断されたときには、制御器１９から出力される制御信号６ａにより第一アクチュエータ６が図１において収縮駆動されて、前記二次冷却の開始地点となる第一プーリー４の位置が材料流通方向上流側へ移動し、一次冷却の領域が短くなって二次冷却開始温度計測値ＴＡが上げられる（ステップＳ５参照）。 On the other hand, when the secondary cooling start temperature measured value T A is determined to be less than the secondary cooling start temperature target value T A0 at the step S3, the first actuator by the control signal 6a outputted from the controller 19 6 Is contracted in FIG. 1, the position of the first pulley 4 that is the starting point of the secondary cooling is moved upstream in the material flow direction, the primary cooling region is shortened, and the secondary cooling start temperature measurement value T A is increased (see step S5).

尚、前記ステップＳ４或いはステップＳ５で制御信号６ａが第一アクチュエータ６へ出力された後は、前記ステップＳ１へ戻り、前述と同様の操作が繰り返される。又、前記ステップＳ２で前記二次冷却開始温度計測値ＴＡと二次冷却開始温度目標値ＴＡ０との偏差の絶対値が許容偏差εTA以下であると判断されたときには、前記第一プーリー４の位置変更は行われない（ステップＳ６参照）。ここで仮に、前記許容偏差εTAを設定していないと、第一プーリー４の位置変更が必要以上に行われてしまうことになるが、本実施例のように、許容偏差εTAを設定することにより、第一プーリー４が必要以上に位置変更されることが避けられる。 After the control signal 6a is output to the first actuator 6 in step S4 or step S5, the process returns to step S1 and the same operation as described above is repeated. Further, when the absolute value of the difference between the secondary cooling start temperature measured value T A and the secondary cooling start temperature target value T A0 is determined to be less than the allowable deviation epsilon TA at step S2, the first pulley 4 is not changed (see Step S6). Here, if the allowable deviation ε TA is not set, the position of the first pulley 4 is changed more than necessary, but the allowable deviation ε TA is set as in this embodiment. Thus, the position of the first pulley 4 can be avoided from being changed more than necessary.

次に、前記制御器１９の冷却速度調整部１９Ｂでは、前記二次冷却開始温度調整部１９ＡのステップＳ２で前記二次冷却開始温度計測値ＴＡと二次冷却開始温度目標値ＴＡ０との偏差の絶対値が許容偏差εTA以下であると判断されたとき、前記ステップＳ６を経て、図４に示す如く、前記一次冷却の終了地点となる二次冷却の開始地点で第一温度センサ１６により材料の二次冷却開始温度計測値ＴＡが計測されると共に、二次冷却の終了地点で第二温度センサ１８により材料の二次冷却終了温度計測値ＴＢが計測される（ステップＳ７参照）。 Next, the cooling rate adjusting section 19B of the controller 19, and the secondary cooling start temperature measured value in step S2 of the secondary cooling start temperature adjuster 19A T A and the secondary cooling start temperature target value T A0 When it is determined that the absolute value of the deviation is equal to or smaller than the allowable deviation ε TA , the first temperature sensor 16 is passed through the step S6 and the secondary cooling start point, which is the end point of the primary cooling, as shown in FIG. with a secondary cooling start temperature measured value T a of the material is measured by, by the second temperature sensor 18 is the secondary cooling end temperature measurement value T B of the material is measured at the end point of the secondary cooling (see step S7 ).

前記ステップＳ７で計測された二次冷却開始温度計測値ＴＡ及び二次冷却終了温度計測値ＴＢに基づき冷却速度算出値Ｒが
Ｒ＝（ＴＡ−ＴＢ）／（Ｌ／Ｖ）
より算出される（ステップＳ８参照）。 Secondary cooling start temperature measured values measured in the step S7 T A and the secondary cooling end temperature measurement value T cooling rate calculated value R based on B is R = (T A -T B) / (L / V)
(See step S8).

前記ステップＳ８で算出された冷却速度算出値Ｒと冷却速度目標値Ｒ０との偏差の絶対値が許容偏差εRと比較されてテンションプーリー１０の位置の調整の要否が判断される（ステップＳ９参照）。 The absolute value of the deviation between the cooling speed calculation value R calculated in step S8 and the cooling speed target value R0 is compared with the allowable deviation ε R to determine whether the position of the tension pulley 10 needs to be adjusted (step). (See S9).

前記ステップＳ９で冷却速度算出値Ｒと冷却速度目標値Ｒ０との偏差の絶対値が許容偏差εRを超え調整を要すると判断されたときには、冷却速度算出値Ｒが冷却速度目標値Ｒ０より大きいか否かが判断される（ステップＳ１０参照）。 When it is determined in step S9 that the absolute value of the deviation between the cooling rate calculation value R and the cooling rate target value R 0 exceeds the allowable deviation ε R and adjustment is required, the cooling rate calculation value R is the cooling rate target value R 0. It is determined whether it is larger (see step S10).

前記ステップＳ１０で前記冷却速度算出値Ｒが冷却速度目標値Ｒ０より大きいと判断されたときには、制御器１９から出力される制御信号１３ａによりテンションアクチュエータ１３が図１において伸長駆動されて、前記冷却ベルト１４の張力を減少させる方向へテンションプーリー１０が移動し、該冷却ベルト１４の冷却ロール外周面に対する押付力が減少されて冷却速度算出値Ｒが下げられる（ステップＳ１１参照）。 When it is determined in step S10 that the calculated cooling rate R is larger than the cooling rate target value R0, the tension actuator 13 is driven to extend in FIG. 1 by the control signal 13a output from the controller 19, and the cooling rate is increased. The tension pulley 10 moves in a direction to reduce the tension of the belt 14, the pressing force of the cooling belt 14 against the outer peripheral surface of the cooling roll is reduced, and the cooling speed calculation value R is lowered (see step S11).

一方、前記ステップＳ１０で前記冷却速度算出値Ｒが冷却速度目標値Ｒ０以下であると判断されたときには、制御器１９から出力される制御信号１３ａによりテンションアクチュエータ１３が図１において収縮駆動されて、前記冷却ベルト１４の張力を増加させる方向へテンションプーリー１０が移動し、該冷却ベルト１４の冷却ロール外周面に対する押付力が増加されて冷却速度算出値Ｒが上げられる。 On the other hand, when it is determined in step S10 that the calculated cooling rate R is equal to or lower than the cooling rate target value R0 , the tension actuator 13 is driven to contract in FIG. 1 by the control signal 13a output from the controller 19. Then, the tension pulley 10 moves in the direction of increasing the tension of the cooling belt 14, the pressing force of the cooling belt 14 against the outer peripheral surface of the cooling roll is increased, and the calculated cooling rate R is increased.

尚、前記ステップＳ１１或いはステップＳ１２で制御信号１３ａがテンションアクチュエータ１３へ出力された後は、前記ステップＳ７へ戻り、前述と同様の操作が繰り返される。又、前記ステップＳ９で前記冷却速度算出値Ｒと冷却速度目標値Ｒ０との偏差の絶対値が許容偏差εR以下であると判断されたとき、前記テンションプーリー１０の位置変更は行われない（ステップＳ１３参照）。ここで仮に、前記許容偏差εRを設定していないと、テンションプーリー１０の位置変更が必要以上に行われてしまうことになるが、本実施例のように、許容偏差εRを設定することにより、テンションプーリー１０が必要以上に位置変更されることが避けられる。 Note that after the control signal 13a is output to the tension actuator 13 in step S11 or step S12, the process returns to step S7 and the same operation as described above is repeated. Further, when it is determined in step S9 that the absolute value of the deviation between the cooling speed calculated value R and the cooling speed target value R0 is equal to or smaller than the allowable deviation ε R , the position of the tension pulley 10 is not changed. (See step S13). Here, if the allowable deviation ε R is not set, the position of the tension pulley 10 is changed more than necessary. However, as in this embodiment, the allowable deviation ε R is set. Thus, it is possible to avoid the position of the tension pulley 10 being changed more than necessary.

更に、前記制御器１９の二次冷却終了温度調整部１９Ｃでは、前記冷却速度調整部１９ＢのステップＳ９で冷却速度算出値Ｒと冷却速度目標値Ｒ０との偏差の絶対値が許容偏差εR以下であると判断されたとき、ステップＳ１３を経て、図５に示す如く、二次冷却の終了地点で第二温度センサ１８により材料の二次冷却終了温度計測値ＴＢが計測される（ステップＳ１４参照）。 Further, in the secondary cooling end temperature adjusting unit 19C of the controller 19, the absolute value of the deviation between the cooling rate calculated value R and the cooling rate target value R0 is the allowable deviation ε R in step S9 of the cooling rate adjusting unit 19B. when it is determined to be less, through step S13, as shown in FIG. 5, by the second temperature sensor 18 is the secondary cooling end temperature measurement value T B of the material is measured at the end point of the secondary cooling (step (See S14).

前記ステップＳ１４で計測された材料の二次冷却終了温度計測値ＴＢと二次冷却終了温度目標値ＴＢ０との偏差の絶対値が許容偏差εTBと比較されて第二プーリー７の位置の調整の要否が判断される（ステップＳ１５参照）。 The position of the second pulley 7 absolute value of the deviation between the secondary cooling end temperature measurement value T B and the secondary cooling end target temperature T B0 materials measured in the step S14 is compared with the allowable deviation epsilon TB The necessity of adjustment is determined (see step S15).

前記ステップＳ１５で二次冷却終了温度計測値ＴＢと二次冷却終了温度目標値ＴＢ０との偏差の絶対値が許容偏差εTBを超え調整を要すると判断されたときには、二次冷却終了温度計測値ＴＢが二次冷却終了温度目標値ＴＢ０より高いか否かが判断される（ステップＳ１６参照）。 When the absolute value of the difference between the secondary cooling end temperature measurement value T B and the secondary cooling end target temperature T B0 the step S15 is judged to require adjustment exceeds the allowable deviation epsilon TB, the secondary cooling end temperature whether the measured value T B is higher than the secondary cooling end target temperature T B0 is determined (see step S16).

前記ステップＳ１６で前記二次冷却終了温度計測値ＴＢが二次冷却終了温度目標値ＴＢ０より高いと判断されたときには、制御器１９から出力される制御信号９ａにより第二アクチュエータ９が図１において収縮駆動されて、前記二次冷却の終了地点となる第二プーリー７の位置が材料流通方向下流側へ移動し、二次冷却の領域が長くなって二次冷却終了温度計測値ＴＢが下げられる（ステップＳ１７参照）。 When the secondary cooling end temperature measurement value T B is determined to be higher than the secondary cooling end target temperature T B0 at the step S16, the second actuator 9 by a control signal 9a output from the controller 19 in FIG. 1 are deflated driven in the moving position of the second pulley 7 serving as the end point of the secondary cooling is the material flow direction downstream secondary cooling end temperature measurement value T B becomes longer region of the secondary cooling Is lowered (see step S17).

一方、前記ステップＳ１６で前記二次冷却終了温度計測値ＴＢが二次冷却終了温度目標値ＴＢ０以下であると判断されたときには、制御器１９から出力される制御信号９ａにより第二アクチュエータ９が図１において伸長駆動されて、前記二次冷却の終了地点となる第二プーリー７の位置が材料流通方向上流側へ移動し、二次冷却の領域が短くなって二次冷却終了温度計測値ＴＢが上げられる（ステップＳ１８参照）。 On the other hand, when the secondary cooling end temperature measurement value T B is determined to be less than the secondary cooling end target temperature T B0 at the step S16, the second actuator 9 by a control signal 9a output from the controller 19 Is driven to extend in FIG. 1, the position of the second pulley 7 that is the end point of the secondary cooling is moved upstream in the material flow direction, the secondary cooling region is shortened, and the secondary cooling end temperature measurement value T B is increased (see step S18).

尚、前記ステップＳ１７或いはステップＳ１８で制御信号９ａが第二アクチュエータ９へ出力された後は、冷却ベルト１４のテンションが変わるので、前記冷却速度調整部１９ＢのステップＳ７へ戻り、再度、冷却速度が調整される。又、前記ステップＳ１５で前記二次冷却終了温度計測値ＴＢと二次冷却終了温度目標値ＴＢ０との偏差の絶対値が許容偏差εTB以下であると判断されたときには、前記第二プーリー７の位置変更は行われず（ステップＳ１９参照）、この場合、前記二次冷却開始温度調整部１９ＡのステップＳ１へ戻り、前述と同様の操作が繰り返される。ここで仮に、前記許容偏差εTBを設定していないと、第二プーリー７の位置変更が必要以上に行われてしまうことになるが、本実施例のように、許容偏差εTBを設定することにより、第二プーリー７が必要以上に位置変更されることが避けられる。 Since the tension of the cooling belt 14 changes after the control signal 9a is output to the second actuator 9 in step S17 or step S18, the process returns to step S7 of the cooling speed adjusting unit 19B, and the cooling speed is again set. Adjusted. Further, when the absolute value of the difference between the secondary cooling end temperature measurement value T B and the secondary cooling end target temperature T B0 at the step S15 is determined to be less than the allowable deviation epsilon TB, the second pulley 7 is not changed (see step S19). In this case, the process returns to step S1 of the secondary cooling start temperature adjusting unit 19A, and the same operation as described above is repeated. Here, if the allowable deviation ε TB is not set, the position of the second pulley 7 is changed more than necessary, but the allowable deviation ε TB is set as in this embodiment. Thus, it is possible to avoid the position of the second pulley 7 being changed more than necessary.

本実施例においては、特許文献１に開示された装置のように基本的に熱可塑性樹脂を成型する際に微細模様を付与するためのものとは全く異なり、溶融材料の冷却工程できめ細かい制御を行うことができ、樹脂シートに適用すれば透明性を確保することが可能となる。又、金属シートに適用することも勿論でき、この場合、その磁性や電気的特性を変化させることが可能となり、種々のシート状材料を形成する上で非常に重要となる所望の組織構造が得られる。   In this embodiment, unlike the apparatus disclosed in Patent Document 1 for basically applying a fine pattern when molding a thermoplastic resin, fine control is performed in the cooling process of the molten material. It can be performed, and if applied to a resin sheet, it becomes possible to ensure transparency. It can of course be applied to metal sheets, in which case the magnetic and electrical properties can be changed, and a desired structure that is very important in forming various sheet-like materials can be obtained. It is done.

こうして、溶融材料の冷却工程できめ細かい制御を行うことができ、所望の組織構造を有したシート状材料を形成し得る。   Thus, fine control can be performed in the cooling process of the molten material, and a sheet-like material having a desired structure can be formed.

尚、本発明のシート状材料の冷却制御方法及び装置は、上述の実施例にのみ限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。   In addition, the cooling control method and apparatus for the sheet-like material of the present invention are not limited to the above-described embodiments, and it goes without saying that various changes can be made without departing from the scope of the present invention.

３ 冷却ロール
４ 第一プーリー
５ 第一プーリーガイド
６ 第一アクチュエータ
６ａ 制御信号
７ 第二プーリー
８ 第二プーリーガイド
９ 第二アクチュエータ
９ａ 制御信号
１０ テンションプーリー
１３ テンションアクチュエータ
１３ａ 制御信号
１４ 冷却ベルト
１６ 第一温度センサ
１８ 第二温度センサ
１９ 制御器
１９Ａ 二次冷却開始温度調整部
１９Ｂ 冷却速度調整部
１９Ｃ 二次冷却終了温度調整部
ＴＡ 二次冷却開始温度計測値
ＴＡ０ 二次冷却開始温度目標値
εTA 許容偏差
Ｌ 弧長
Ｖ 周速
Ｒ 冷却速度算出値
Ｒ０ 冷却速度目標値
εR 許容偏差
ＴＢ 二次冷却終了温度計測値
ＴＢ０ 二次冷却終了温度目標値
εTB 許容偏差 DESCRIPTION OF SYMBOLS 3 Cooling roll 4 1st pulley 5 1st pulley guide 6 1st actuator 6a Control signal 7 2nd pulley 8 2nd pulley guide 9 2nd actuator 9a Control signal 10 Tension pulley 13 Tension actuator 13a Control signal 14 Cooling belt 16 1st Temperature sensor 18 Second temperature sensor 19 Controller 19A Secondary cooling start temperature adjustment unit 19B Cooling speed adjustment unit 19C Secondary cooling end temperature adjustment unit T A Secondary cooling start temperature measurement value T A0 Secondary cooling start temperature target value ε TA allowable deviation L Arc length V Peripheral speed R Cooling speed calculation value R 0 Cooling speed target value ε R Allowable deviation T B Secondary cooling end temperature measured value T B0 Secondary cooling end temperature target value ε TB allowable deviation

Claims (5)

溶融材料を回転する冷却ロールの外周面に供給して一次冷却を行い、続いて、前記冷却ロールと冷却ロール外周面に押し付けられる冷却ベルトとの間を通過させて二次冷却を行うことによりシート状材料を形成するシート状材料の冷却制御方法であって、
材料の二次冷却開始温度計測値が二次冷却開始温度目標値より高いとき、一次冷却の領域を長くして二次冷却開始温度を下げ、前記二次冷却開始温度計測値が二次冷却開始温度目標値以下のとき、一次冷却の領域を短くして二次冷却開始温度を上げる二次冷却開始温度調整工程と、
前記二次冷却開始温度計測値と二次冷却終了温度計測値に基づく冷却速度が冷却速度目標値より大きいとき、前記冷却ベルトの冷却ロール外周面に対する押付力を減少させて冷却速度を下げ、前記冷却速度が冷却速度目標値以下のとき、前記冷却ベルトの冷却ロール外周面に対する押付力を増加させて冷却速度を上げる冷却速度調整工程と、
前記二次冷却終了温度計測値が二次冷却終了温度目標値より高いとき、二次冷却の領域を長くして二次冷却終了温度を下げ、前記二次冷却終了温度計測値が二次冷却終了温度目標値以下のとき、二次冷却の領域を短くして二次冷却終了温度を上げる二次冷却終了温度調整工程と
を行うことを特徴とするシート状材料の冷却制御方法。 The molten material is supplied to the outer peripheral surface of the rotating cooling roll to perform primary cooling, and then the secondary cooling is performed by passing between the cooling roll and the cooling belt pressed against the outer peripheral surface of the cooling roll. A cooling control method for a sheet-like material for forming a sheet-like material,
When the measured value of the secondary cooling start temperature of the material is higher than the target value of the secondary cooling start temperature, the primary cooling region is lengthened to lower the secondary cooling start temperature, and the measured value of the secondary cooling start temperature is the secondary cooling start. When the temperature is lower than the target temperature, the secondary cooling start temperature adjustment step for shortening the primary cooling region and increasing the secondary cooling start temperature;
When the cooling rate based on the secondary cooling start temperature measurement value and the secondary cooling end temperature measurement value is larger than the cooling rate target value, the pressing force against the outer peripheral surface of the cooling belt of the cooling belt is decreased to reduce the cooling rate, When the cooling rate is equal to or lower than the cooling rate target value, a cooling rate adjustment step for increasing the cooling rate by increasing the pressing force of the cooling belt against the outer peripheral surface of the cooling roll; and
When the secondary cooling end temperature measured value is higher than the secondary cooling end temperature target value, the secondary cooling end temperature is lowered by extending the secondary cooling region, and the secondary cooling end temperature measured value is the secondary cooling end. And a secondary cooling end temperature adjusting step of increasing the secondary cooling end temperature by shortening the secondary cooling region when the temperature is equal to or lower than the temperature target value. 前記二次冷却開始温度調整工程における二次冷却開始温度計測値と二次冷却開始温度目標値との比較は、二次冷却開始温度計測値と二次冷却開始温度目標値との偏差の絶対値が許容偏差を超えるときに行い、
前記冷却速度調整工程における冷却速度は、前記二次冷却開始温度調整工程で前記二次冷却開始温度計測値と二次冷却開始温度目標値との偏差の絶対値が許容偏差以下のとき、冷却速度算出値として
Ｒ＝（ＴＡ−ＴＢ）／（Ｌ／Ｖ）
但し、ＴＡ：二次冷却開始温度計測値
ＴＢ：二次冷却終了温度計測値
Ｌ：冷却ロール外周面に押し付けられる冷却ベルトの弧長
Ｖ：冷却ロールの周速
より算出し、前記冷却速度算出値と冷却速度目標値との比較は、該冷却速度算出値と冷却速度目標値との偏差の絶対値が許容偏差を超えるときに行い、
前記二次冷却終了温度調整工程における二次冷却終了温度計測値と二次冷却終了温度目標値との比較は、前記冷却速度調整工程で冷却速度算出値と冷却速度目標値との偏差の絶対値が許容偏差以下であって、前記二次冷却終了温度計測値と二次冷却終了温度目標値との偏差の絶対値が許容偏差を超えるときに行い、前記二次冷却終了温度計測値と二次冷却終了温度目標値との偏差の絶対値が許容偏差以下のとき、前記二次冷却開始温度調整工程へ戻るようにした請求項１記載のシート状材料の冷却制御方法。 The comparison between the secondary cooling start temperature measurement value and the secondary cooling start temperature target value in the secondary cooling start temperature adjustment step is the absolute value of the deviation between the secondary cooling start temperature measurement value and the secondary cooling start temperature target value. Is performed when the deviation exceeds the allowable deviation,
The cooling rate in the cooling rate adjustment step is the cooling rate when the absolute value of the deviation between the measured value of the secondary cooling start temperature and the target value of the secondary cooling start temperature is less than the allowable deviation in the secondary cooling start temperature adjustment step. as calculated value R = (T A -T B) / (L / V)
However, T A: secondary cooling start temperature measured value T B: secondary cooling end temperature measurement value L: arc length of the cooling belt is pressed against the cooling roll outer surface V: calculated from the peripheral speed of the cooling roll, the cooling rate The comparison between the calculated value and the target cooling rate is performed when the absolute value of the deviation between the calculated cooling rate and the target cooling rate exceeds the allowable deviation.
The measured value of the secondary cooling end temperature in the secondary cooling end temperature adjustment step and the target value of the secondary cooling end temperature are compared with the absolute value of the deviation between the calculated cooling rate and the target cooling rate in the cooling rate adjustment step. When the absolute value of the deviation between the secondary cooling end temperature measured value and the secondary cooling end temperature target value exceeds the allowable deviation, the secondary cooling end temperature measured value and the secondary cooling end temperature The cooling control method for a sheet-like material according to claim 1, wherein when the absolute value of the deviation from the cooling end temperature target value is equal to or less than the allowable deviation, the process returns to the secondary cooling start temperature adjustment step. 回転自在に配設され且つ外周面に供給される溶融材料の一次冷却と二次冷却とを行う冷却ロールと、
第一プーリーと第二プーリーとテンションプーリーとの間に無端状に掛け回され且つ第一プーリーと第二プーリーとの間で冷却ロール外周面に押し付けられて該冷却ロールとの間で材料の前記二次冷却を行う冷却ベルトと、
前記第一プーリーの配設位置における材料の二次冷却開始温度計測値を計測する第一温度センサと、
前記第二プーリーの配設位置における材料の二次冷却終了温度計測値を計測する第二温度センサと、
前記第一温度センサで計測される二次冷却開始温度計測値と前記第二温度センサで計測される二次冷却終了温度計測値とに基づき、前記第一プーリーの位置調整を行う第一アクチュエータと、前記第二プーリーの位置調整を行う第二アクチュエータと、前記テンションプーリーの位置調整を行うテンションアクチュエータとに制御信号を出力することにより、前記一次冷却と二次冷却とを調整する制御器と
を備えたことを特徴とするシート状材料の冷却制御装置。 A cooling roll that performs primary cooling and secondary cooling of the molten material that is rotatably arranged and supplied to the outer peripheral surface;
Between the first pulley, the second pulley, and the tension pulley, the material is wound endlessly and pressed against the outer peripheral surface of the cooling roll between the first pulley and the second pulley. A cooling belt for secondary cooling;
A first temperature sensor for measuring a secondary cooling start temperature measurement value of the material at the arrangement position of the first pulley;
A second temperature sensor for measuring a secondary cooling end temperature measurement value of the material at the position where the second pulley is disposed;
A first actuator that adjusts the position of the first pulley based on a secondary cooling start temperature measurement value measured by the first temperature sensor and a secondary cooling end temperature measurement value measured by the second temperature sensor; A controller for adjusting the primary cooling and the secondary cooling by outputting a control signal to a second actuator for adjusting the position of the second pulley and a tension actuator for adjusting the position of the tension pulley. A sheet-like material cooling control apparatus comprising the sheet-like material. 前記第一プーリーは、前記冷却ロールにおける溶融材料の供給位置から冷却ロール回転方向下流側へ所要距離だけ離れた位置に、冷却ロール軸心と平行な軸心を中心として回転自在に且つ前記第一アクチュエータの作動により冷却ロール外周面に沿って位置調整自在となるよう配設され、
前記第二プーリーは、前記第一プーリーから冷却ロール回転方向下流側へ所要距離だけ離れた位置に、冷却ロール軸心と平行な軸心を中心として回転自在に且つ前記第二アクチュエータの作動により冷却ロール外周面に沿って位置調整自在となるよう配設され、
前記テンションプーリーは、前記第一プーリー及び第二プーリーから所要距離だけ離れた位置に、冷却ロール軸心と平行な軸心を中心として回転自在に且つ前記テンションアクチュエータの作動により冷却ロール外周面に対する位置調整自在となるよう配設される請求項３記載のシート状材料の冷却制御装置。 The first pulley is rotatable about a central axis parallel to the cooling roll axis at a position away from the molten material supply position in the cooling roll by a required distance downstream in the rotation direction of the cooling roll. It is arranged so that the position can be adjusted along the outer peripheral surface of the cooling roll by the operation of the actuator,
The second pulley is cooled by the operation of the second actuator at a position away from the first pulley by a required distance downstream in the rotation direction of the cooling roll, with the axis parallel to the cooling roll axis as the center. It is arranged so that the position can be adjusted along the outer peripheral surface of the roll,
The tension pulley is located at a position away from the first pulley and the second pulley by a required distance, is rotatable about an axis parallel to the cooling roll axis, and is positioned relative to the outer peripheral surface of the cooling roll by the operation of the tension actuator. The cooling control device for a sheet-like material according to claim 3, which is arranged so as to be adjustable. 前記制御器は、
前記一次冷却の終了地点となる二次冷却の開始地点で第一温度センサにより計測される材料の二次冷却開始温度計測値と二次冷却開始温度目標値との偏差の絶対値が許容偏差を超え且つ前記二次冷却開始温度計測値が二次冷却開始温度目標値より高いとき、前記二次冷却の開始地点となる第一プーリーの位置を材料流通方向下流側へ移動させ、一次冷却の領域を長くして二次冷却開始温度計測値を下げる制御信号を前記第一アクチュエータへ出力する一方、前記二次冷却開始温度計測値と二次冷却開始温度目標値との偏差の絶対値が許容偏差を超え且つ前記二次冷却開始温度計測値が二次冷却開始温度目標値以下のとき、前記二次冷却の開始地点となる第一プーリーの位置を材料流通方向上流側へ移動させ、一次冷却の領域を短くして二次冷却開始温度計測値を上げる制御信号を前記第一アクチュエータへ出力する二次冷却開始温度調整部と、
該二次冷却開始温度調整部で前記二次冷却開始温度計測値と二次冷却開始温度目標値との偏差の絶対値が許容偏差以下であると判断されたとき、冷却速度算出値を
Ｒ＝（ＴＡ−ＴＢ）／（Ｌ／Ｖ）
但し、ＴＡ：二次冷却開始温度計測値
ＴＢ：二次冷却終了温度計測値
Ｌ：冷却ロール外周面に押し付けられる冷却ベルトの弧長
Ｖ：冷却ロールの周速
より算出し、該冷却速度算出値と冷却速度目標値との偏差の絶対値が許容偏差を超え且つ前記冷却速度算出値が冷却速度目標値より大きいとき、前記冷却ベルトの張力を減少させる方向へテンションプーリーを移動させ、該冷却ベルトの冷却ロール外周面に対する押付力を減少させて冷却速度算出値を下げる制御信号を前記テンションアクチュエータへ出力する一方、前記冷却速度算出値と冷却速度目標値との偏差の絶対値が許容偏差を超え且つ前記冷却速度算出値が冷却速度目標値以下のとき、前記冷却ベルトの張力を増加させる方向へテンションプーリーを移動させ、該冷却ベルトの冷却ロール外周面に対する押付力を増加させて冷却速度算出値を上げる制御信号を前記テンションアクチュエータへ出力する冷却速度調整部と、
該冷却速度調整部で冷却速度算出値と冷却速度目標値との偏差の絶対値が許容偏差以下であると判断されたとき、前記二次冷却の終了地点で第二温度センサにより計測される材料の二次冷却終了温度計測値と二次冷却終了温度目標値との偏差の絶対値が許容偏差を超え且つ前記二次冷却終了温度計測値が二次冷却終了温度目標値より高いとき、前記二次冷却の終了地点となる第二プーリーの位置を材料流通方向下流側へ移動させ、二次冷却の領域を長くして二次冷却終了温度計測値を下げる制御信号を前記第二アクチュエータへ出力する一方、前記二次冷却終了温度計測値と二次冷却終了温度目標値との偏差の絶対値が許容偏差を超え且つ前記二次冷却終了温度計測値が二次冷却終了温度目標値以下のとき、前記二次冷却の終了地点となる第二プーリーの位置を材料流通方向上流側へ移動させ、二次冷却の領域を短くして二次冷却終了温度計測値を上げる制御信号を前記第二アクチュエータへ出力し、前記二次冷却終了温度計測値と二次冷却終了温度目標値との偏差の絶対値が許容偏差以下のとき、前記二次冷却開始温度調整部での制御へ戻る二次冷却終了温度調整部と
を具備する請求項４記載のシート状材料の冷却制御装置。 The controller is
The absolute value of the deviation between the secondary cooling start temperature measurement value of the material measured by the first temperature sensor and the secondary cooling start temperature target value at the start point of the secondary cooling, which is the end point of the primary cooling, is an allowable deviation. When the measured value of the secondary cooling start temperature exceeds the secondary cooling start temperature target value, the position of the first pulley that is the starting point of the secondary cooling is moved downstream in the material flow direction, and the primary cooling region Is output to the first actuator, while the absolute value of the deviation between the secondary cooling start temperature measurement value and the secondary cooling start temperature target value is an allowable deviation. And the measured value of the secondary cooling start temperature is equal to or lower than the target value of the secondary cooling start temperature, the position of the first pulley, which is the starting point of the secondary cooling, is moved upstream in the material flow direction, Secondary cooling by shortening the area A secondary cooling start temperature adjusting unit for outputting a control signal to raise the starting temperature measurement value to the first actuator,
When the secondary cooling start temperature adjustment unit determines that the absolute value of the deviation between the measured value of the secondary cooling start temperature and the target value of the secondary cooling start temperature is equal to or less than the allowable deviation, the calculated cooling rate is set to R = (T A -T B) / ( L / V)
However, T A : Secondary cooling start temperature measurement value T B : Secondary cooling end temperature measurement value L: Arc length of the cooling belt pressed against the outer peripheral surface of the cooling roll V: Calculated from the peripheral speed of the cooling roll, and the cooling speed When the absolute value of the deviation between the calculated value and the cooling speed target value exceeds the allowable deviation and the cooling speed calculated value is larger than the cooling speed target value, the tension pulley is moved in a direction to reduce the tension of the cooling belt, While the control signal for decreasing the pressing force of the cooling belt against the outer peripheral surface of the cooling roll to lower the calculated cooling rate is output to the tension actuator, the absolute value of the deviation between the calculated cooling rate and the target cooling rate is the allowable deviation. And the calculated cooling rate is less than or equal to the target cooling rate, the tension pulley is moved in a direction to increase the tension of the cooling belt, and the cooling belt A cooling rate adjustment unit that outputs a control signal to the tension actuator to increase the pressing force on the outer peripheral surface of the cooling roll to increase the calculated cooling rate;
The material measured by the second temperature sensor at the end point of the secondary cooling when the absolute value of the deviation between the calculated cooling rate and the target cooling rate is determined to be less than the allowable deviation by the cooling rate adjusting unit When the absolute value of the deviation between the secondary cooling end temperature measured value and the secondary cooling end temperature target value exceeds the allowable deviation and the secondary cooling end temperature measured value is higher than the secondary cooling end temperature target value, Move the position of the second pulley, which is the end point of the secondary cooling, to the downstream side in the material flow direction, and output a control signal to the second actuator that lengthens the secondary cooling region and lowers the secondary cooling end temperature measurement value. On the other hand, when the absolute value of the deviation between the secondary cooling end temperature measured value and the secondary cooling end temperature target value exceeds an allowable deviation and the secondary cooling end temperature measured value is equal to or less than the secondary cooling end temperature target value, The second end point of the secondary cooling A control signal for moving the pulley position upstream in the material flow direction, shortening the secondary cooling region and increasing the secondary cooling end temperature measurement value is output to the second actuator, and the secondary cooling end temperature measurement value is output. And a secondary cooling end temperature adjusting unit that returns to control in the secondary cooling start temperature adjusting unit when the absolute value of the deviation between the target value and the secondary cooling end temperature target value is equal to or less than an allowable deviation. Cooling control device for sheet material.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862658A (en) * 1973-05-16 1975-01-28 Allied Chem Extended retention of melt spun ribbon on quenching wheel
JPS54147105A (en) * 1978-05-12 1979-11-17 Sumitomo Spec Metals Method and apparatus for producing metal material cooled rapidly by liquid
JPS56160859A (en) * 1980-05-14 1981-12-10 Hitachi Ltd Sheet producing device
JPS57112955A (en) * 1980-12-29 1982-07-14 Allied Chem Method and apparatus for manufacturing continuous metallic small piece
JPS58181454A (en) * 1982-04-20 1983-10-24 Furukawa Electric Co Ltd:The Production of thin metallic strip
JPH0172947U (en) * 1987-10-30 1989-05-17
JP2001096342A (en) * 1999-09-27 2001-04-10 Shinko Electric Co Ltd Rotary quickly quenching casting device
JP2010058370A (en) * 2008-09-03 2010-03-18 Mitsubishi Plastics Inc Production process of thermoplastic resin film

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862658A (en) * 1973-05-16 1975-01-28 Allied Chem Extended retention of melt spun ribbon on quenching wheel
JPS54147105A (en) * 1978-05-12 1979-11-17 Sumitomo Spec Metals Method and apparatus for producing metal material cooled rapidly by liquid
JPS56160859A (en) * 1980-05-14 1981-12-10 Hitachi Ltd Sheet producing device
JPS57112955A (en) * 1980-12-29 1982-07-14 Allied Chem Method and apparatus for manufacturing continuous metallic small piece
JPS58181454A (en) * 1982-04-20 1983-10-24 Furukawa Electric Co Ltd:The Production of thin metallic strip
JPH0172947U (en) * 1987-10-30 1989-05-17
JP2001096342A (en) * 1999-09-27 2001-04-10 Shinko Electric Co Ltd Rotary quickly quenching casting device
JP2010058370A (en) * 2008-09-03 2010-03-18 Mitsubishi Plastics Inc Production process of thermoplastic resin film

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